Temperature machines the influence of precision to the machine tool

544px; Text-align: Justify; Margin: 0px; Padding: 0px; Max-width: 100%; Font-size: 15px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! The one machine tool that Important;"> heat is out of shape is the account that the influence processes precision is given out heat by the change of workshop environment temperature, electromotor with mechanical InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Letter-spacing: 0.

544px; Text-align: Justify; Margin: 0px; Padding: 0px; Max-width: 100%; Font-size: 15px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;"> motion chafes the influence of calorific, heat in metal cutting and cooling medium, cause a machine tool departmental temperature rise is inhomogenous, cause precision of machine tool configuration and the change that machine precision. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Letter-spacing: 0.

544px; Text-align: Justify; Margin: 0px; Padding: 0px; Max-width: 100%; Font-size: 15px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;"> for example, the screw of 70mm×1650mm is machined on the CNC Milling of a common precision, in the morning 7:30-9:0The workpiece of 0 milling and afternoon 2:00-3:3The work look of 0 treatment is compared, the change that accumulates an error can amount to 85m. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Letter-spacing: 0.

544px; Text-align: Justify; Margin: 0px; Padding: 0px; Max-width: 100%; Font-size: 15px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;"> and fall in constant temperature condition, criterion the error can be reduced to 40m. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

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544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is like again, one is used at grinding of double end panel 0.

6 ～ 3.

The Bao Gang with thick 5mm piece the grinder of accurate double end panel of workpiece, 200mm×25mm×1 is machined when check and accept.

08mm steel piece the dimension precision that workpiece can achieve Mm, flexibility is in full-length inside be less than 5m. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> but after 1h of successive and automatic grinding, dimension span increases 12m, cooling fluid temperature rises to 45 ℃ by the 17 ℃ when switching on the mobile phone. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is affected as a result of what grinding heats up, bring about main shaft journal stretchy, clearance of the bearing before main shaft increases. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> accordingly, for cooling fluid of this machine tool box adds 5.

5kW refrigeration machine, the effect is very ideal. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> carries out a proof, after machine tool be heated the main reason that be out of shape is influence treatment precision. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> but the machine tool is at temperature at any time in the environment that everywhere changes; Portant; Overflow-wrap: Break-word! Important; Font-size: Itself of 15px;"> machine tool can waste energy necessarily when the job, of these energy quite a branch is heated up with all sorts of means translate into, cause a machine tool the physics of each component changes, this kind of change because of configuration different, the reason such as the difference with qualitative material and differ in thousands ways. Portant; Overflow-wrap: Break-word! Important; Font-size: Stylist of 15px;"> machine tool should master hot formation distributinging rule of mechanism and temperature, take corresponding step, make heat is out of shape the influence to machining precision decreases the smallest. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: The temperature rise of 15px;"> machine tool and temperature distributing, with a vast territory of our country of natural climate influence, major area is in semi-tropical area, all the year round temperature change is bigger, change of the difference in temperature inside a day is different also. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> from this, people is right indoor (be like a workshop) the means of the interpose of temperature and level are different also, the temperature atmosphere differ in thousands ways all round the machine tool. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> for example, span of temperature of season of long triangle area makes an appointment with 45 ℃ left and right sides, change of temperature of day and night makes an appointment with 5 ～ 12 ℃ . Portant; Overflow-wrap: Break-word! Important; Font-size: Job shops does not have 15px;"> machine in the winter commonly heat addition, summer does not have air conditioning, but as long as the workshop is ventilated better, machine the temperature gradient change of job shops is not big. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> and northeast area, seasonal difference in temperature can amount to 60 ℃ , change of day and night makes an appointment with 8 ～ 15 ℃ . Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is annual the last ten-day of a month will come in October heating period is at the beginning of second year April, machine the design of job shops has heating, airiness is insufficient. Portant; Overflow-wrap: Break-word! Important; Font-size: Difference in temperature of 15px;"> workshop inside and outside can amount to 50 ℃ . Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> because gradient of temperature of the hiemal inside this workshop is very complex, when measuring the temperature outdoor 1.

5 ℃ , time is in the morning 8:15-8:35, change of the temperature inside the workshop is made an appointment with 3.

5 ℃ . Portant; Overflow-wrap: Break-word! Important; Font-size: The treatment precision of 15px;"> accurate machine tool suffers environmental temperature to affect inside such workshop will be very big. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: The surroundings of influence machine tool of 15px;"> surroundings is the hot environment that shows all sorts of layout inside limits of machine tool close quarters are formed. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: They include 15px;"> the following 4 respects: InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) workshop microclimate: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is like the temperature inside the workshop distributing (perpendicular direction, standard way) . Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is become day and night alternant or temperature of the workshop when climate and ventilated change all can produce slow change. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) workshop heat source: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is like the radiate of equipment of sun illuminate, heating and high-power floodlight to wait, the can affect machine tool whole or partial part for long directly temperature rise when they are closer from the machine tool. Portant; Overflow-wrap: Break-word! Important; Font-size: The quantity of heat that equipment of 15px;"> photograph adjacent produces when move is met with shoot or the means that air flows affects machine tool temperature rise. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) medicinal powder hot: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> foundation has better medicinal powder hot action, especially the foundation avoid by all means of accurate machine tool stands by conduit of subterranean heat addition, once when burst leak, the likelihood becomes a heat source that finds a reason hard; Portant; Overflow-wrap: Break-word! Important; Font-size: The workshop that 15px;"> opens wide will be a very good “ radiator ” , be helpful for workshop temperature balanced. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">4) constant temperature: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> workshop adopts constant temperature establishment to maintain precision and treatment precision to accurate machine tool is very effectual, but specific power consumption is bigger. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: Interior of 15px;">3, machine tool heats up influencing factor InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) heat source of sex of machine tool structure. Portant; Overflow-wrap: Break-word! Important; Font-size: If main shaft electromotor, feed servo electromotor, refrigeration is lubricant pump motor, electronic-controlled,15px;"> electromotor gives out heat all can produce unripe quantity of heat box. Portant; Overflow-wrap: Break-word! Important; Font-size: These 15px;"> conditions allow to electromotor itself, but have great and adverse effect to yuan of parts of an apparatus such as guide screw of main shaft, ball, should adopt measure to give segregation. Portant; Overflow-wrap: Break-word! Important; Font-size: When 15px;"> should input electromotor of electric energy drive to run, besides have little share (about 20% the left and right sides) outside heat energy of translate into electromotor, much will use kinetic energy of orgnaization translate into by carry, if main shaft rotates, workbench motion; Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> but inevitable still have comparative to chafe in melt into of athletic process change trains partly calorific, for example the orgnaization such as guide screw of bearing, slideway, ball and drive-box is calorific. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) the heat in metal cutting of process. Portant; Overflow-wrap: Break-word! Important; Font-size: The kinetic energy of the cutting tool in 15px;"> cutting process or workpiece is used up partly at cutting result, comparative to change cutting partly be out of shape can mix cut the attrition heat between bits and cutting tool, form cutting tool, main shaft and workpiece to give out heat, conduct the part such as the workbench clamping apparatus of the machine tool by a large number of heat that cut bits. Portant; Overflow-wrap: Break-word! Important; Font-size: They will affect 15px;"> directly the relative position between cutting tool and workpiece. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) cooling. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> refrigeration is the retrorse measure that lifts in the light of machine tool temperature, be like electromotor refrigeration of cooling, main shaft component and infrastructure refrigeration. Portant; Overflow-wrap: Break-word! Important; Font-size: Machine tool of 15px;"> high end often is opposite electronic-controlled box makes up cold machine, give force to cool. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: The structural configuration of 15px;">4, machine tool is in to the influence of temperature rise machine tool heat is out of shape the domain discusses form of machine tool structure, show configuration, quality distributings normally, material function and heat source distributing wait for a problem. Portant; Overflow-wrap: Break-word! Important; Font-size: The temperature that 15px;"> writtens guarantee configuration condition affects a machine tool distributings, caloric conducts direction, heat to be out of shape direction is reached match etc. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) the structural configuration of the machine tool. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is in total construction respect, the machine tool has type of door of vertical, horizontal, dragon and cantilever type to wait, all have bigger difference to hot response and stability. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> for example the temperature rise of the box of lathe main shaft of gear gearshift can be as high as 35 ℃ , make carry on main shaft end, hot balance time needs 2h left and right sides. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> and machining center of Che Xi of nicety of type of inclined lathe bed, the machine tool has a stable base. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> rose apparently overall stiffness, main shaft introduces servo electromotor drive, go besides positive drive part, its temperature rise is less than 15 ℃ commonly. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) the influence that heat source distributings. Portant; Overflow-wrap: Break-word! Important; Font-size: Think heat source is to point to electromotor normally on 15px;"> machine tool. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is like main shaft electromotor, feed electromotor and hydraulic pressure system to wait, it is not complete actually. Portant; Overflow-wrap: Break-word! Important; Font-size: Of 15px;"> electromotor calorific when just shouldering load, electric current wastes the energy on armature impedance, have additionally quite what one part energy uses up the friction work that waits for an orgnaization at nut of bearing, guide screw and slideway to cause is calorific. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> can call electromotor so heat source, it is bearing, nut, slideway 2 times heat source with what cut bits to say. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> heat is out of shape is all results of these heat source combined influence. Portant; Overflow-wrap: Break-word! Important; Font-size: Machining center of vertical of movable type of a pillar is in 15px;"> Y is mixed to the temperature rise in feed motion be out of shape circumstance. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">Y did not make motion to the workbench when feed, be opposite so X to heat is out of shape the impact is very little. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is on pillar, the slideway guide screw that leaves Y axis exceeds far drop, its temperature rise is smaller. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> this machine explained in the circumstance when Z axis is mobile heat source distributings to be affected to heating up metabolic further. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">Z axis feed leaves X to farther, reason heat is out of shape the impact is less, nut of Z axis electromotor leaves closer on pillar, temperature rise and be out of shape bigger also. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) the influence that quality distributings. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> quality distributings to heat up metabolic influence to have tripartite side to the machine tool. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> firstly, point to quality measurement and volume intermediate range to spend, point to the rate that change thermal capacity and heat deliver normally, the change achieves the time InkMacSystemFont of hot balance, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> 2, pass those who change quality to decorate a form, like all sorts of muscle board decorate, raise hot stiffness of the structure, below the circumstance of similar temperature rise, reduce heat to be out of shape affect or keep opposite be out of shape lesser; InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> thirdly, point to the form that decorates through changing quality, if be in the structure is exterior decorate medicinal powder heat up muscle board, in order to reduce the temperature rise of machine tool component. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: The influence of 15px;"> material function: Portant; Overflow-wrap: Break-word! Important; Font-size: The material with different 15px;"> has different hot performance data (rate of specific heat, heat conduction and linear expansion coefficient) , in same caloric the influence falls, its temperature rise, be out of shape all have different. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> machine tool heats up the test InkMacSystemFont of function, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: The end that hot property of 15px;">1, machine tool tests controls a machine tool to heat up metabolic key is check through heating up character, understand the change of the environmental temperature with located machine tool adequately, heat source of machine tool itself and temperature change and bit more crucial response (be out of shape displacement) . Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> checks data or music line drawing narrates a machine tool to heat up character, so that take the way to deal with a situation, control heat is out of shape, improve the treatment precision of the machine tool and efficiency. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> specifically, should achieve the following goals: InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) machine tool surroundings checks. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> measures the temperature environment inside the workshop, its dimensional temperature gradient, day and night is alternant in the change that temperature distributings, should measure seasonal change to be affected to what temperature distributings all round the machine tool even. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) the hot character of machine tool itself checks. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> eliminates the requirement that the environment violates as far as possible to fall, let a machine tool be in all sorts of movement condition, in order to measure the serious main points of machine tool itself temperature change, displacement changes, the record is in enough long time paragraph the temperature change inside and crucial point displacement, usable also infrared ray heats up photograph appearance to record each time paragraph the circumstance that heat distributings. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) heat of temperature rise of treatment process test is out of shape, be out of shape in order to judge machine tool heat pair of influences that machine process precision. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">4) afore-mentioned experiments can accumulate much data, curve, heat of control of the person that will be designed for the machine tool and use is out of shape offer reliable criterion, point out the direction that take effective measures. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: Heat of 15px;">2, machine tool is out of shape the principle heat of the test is out of shape the test needs to measure a certain number of bit more relevant temperature above all, include the following fields: InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) heat source: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> includes drive of guide screw of electromotor of each part feed, main shaft electromotor, ball bearing of deputy, slideway, main shaft. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) auxiliary unit: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> includes machine of hydraulic pressure system, refrigeration, refrigeration and lubricant displacement testing system. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) rigid structure: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> includes lathe bed, base, slide, pillar and milling head casing and main shaft. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> places hold indium steel to measure a club between main shaft and circumgyrate workbench, 5 contact sensor was configured in direction of X, Y, Z, measure be out of shape integratedly in what all sorts of condition fall, with the opposite displacement between simulation cutting tool and workpiece. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: Heat of machine tool of analysis of data processing of 15px;">3, test is out of shape the experiment wants to be inside a longer consecutive time undertake, undertake successive data logging, the course analyses processing, reflects heat is out of shape characteristic reliability is very high. Portant; Overflow-wrap: Break-word! Important; Font-size: If 15px;"> undertakes error eliminate through experimenting for many times, the regularity that shows is authentic. Portant; Overflow-wrap: Break-word! Important; Font-size: Heat of system of 15px;"> main shaft is out of shape experiment the Communist Party of China set 5 measurement point, nod among them 1, dot 2 in main shaft upright ministry is mixed stand by main shaft bearing to be in, dot 4, dot 5 stand by Z guide course to be in in milling head housing respectively. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> test time lasted in all 14h, among them before rotate speed of 10h main shaft is respectively inside limits of 0 ～ 9000r/min alternant gearshift, begin from 10h, main shaft rotates with 9000r/min high speed continuously. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> can get the following verdict: InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) the hot balance time of this main shaft makes an appointment with 1h left and right sides, span of the temperature rise after the balance 1.

5 ℃ ; InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">2) temperature rise basically originates main shaft bearing and main shaft electromotor, inside normal gearshift limits, the hot condition performance of bearing is good; InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">3) heat is out of shape in X Xiang Ying rings very small; InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">4) Z to adjustable be out of shape bigger, make an appointment with 10m, be by the heat of main shaft stretchy reach bearing clearance to increase cause; InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">5) it is continuously when rotate speed when 9000r/min, temperature rise rises quickly, in 2.

Inside 5h rise 7 ℃ left and right sides urgently, and have the tendency that continues to rise, y to with Z to be out of shape achieved 29m and 37m, show this main shaft to move to already cannot be stabilized when 9000r/min in rotate speed, but can inside short time (20min) move. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> machine tool heats up metabolic control to discuss by above analysis, the temperature rise of the machine tool and heat are out of shape varied to machining the influencing factor of precision, when taking control step, should capture main contradiction, the key is adopted one, 2 measure, obtain the result of get twice the result with half the effort. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is in the design should from 4 direction proceed with: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> decreases calorific, reduce temperature rise, structural balance, reasonable and cooling. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1, reducing calorific control heat source is basic measure. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> should adopt measure to reduce the calorific amount of heat source effectively in the design. InkMacSystemFont, "Helvetica Neue" , "PingFang SC" , "Hiragino Sans GB" , "Microsoft YaHei UI" , "Microsoft YaHei" , arial, sans-serif; Font-size: 17px; Letter-spacing: 0.

544px; Text-align: Justify; Text-indent: 0px; Box-sizing: Border-box! Important; Overflow-wrap: Break-word! Important;">portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">1) reasonable the rated power that chooses electromotor. Portant; Overflow-wrap: Break-word! Important; Font-size: The output power P of 15px;"> electromotor is equal to the product of voltage V and voltaic I, usually, voltage V is constant, accordingly, the accretion of bear, mean electromotor to output power to increase, namely corresponding voltaic I also increases, criterion electric current uses up the quantity of heat in armature impedance to increase. Portant; Overflow-wrap: Break-word! Important; Font-size: If the electromotor that we devise an alternative is close to for long or 15px;"> exceeds the job below the condition of rated power greatly, criterion the temperature rise of electromotor increases apparently. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> is this, undertook contrasting experimenting to milling head of milling machine of chamfer of needle of BK50 numerical control (electromotor rotate speed: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">960r/min; Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> environment temperature: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;">12 ℃ ) . Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> gets the following idea from afore-mentioned experiments: Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> considers from heat source function, no matter main shaft electromotor still is feed electromotor, when choosing rated power, had better choose bigger than computational power 25% the left and right sides is advisable, in moving actually, the output power of electromotor and bear photograph match, increase electromotor rated power very small to the influence of specific power consumption. Portant; Overflow-wrap: Break-word! Important; Font-size: 15px;"> but can reduce electromotor temperature rise effectively. CNC Milling CNC Machining