TWM442219U - Thermal compensation device for machine tool - Google Patents

Thermal compensation device for machine tool Download PDF

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Publication number
TWM442219U
TWM442219U TW101212665U TW101212665U TWM442219U TW M442219 U TWM442219 U TW M442219U TW 101212665 U TW101212665 U TW 101212665U TW 101212665 U TW101212665 U TW 101212665U TW M442219 U TWM442219 U TW M442219U
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TW
Taiwan
Prior art keywords
machine tool
compensation
temperature
thermal
deformation
Prior art date
Application number
TW101212665U
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Chinese (zh)
Inventor
ming-xiong Zhang
Ren-Kuan Zhong
Original Assignee
Dah Lih Machinery Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dah Lih Machinery Industry Co Ltd filed Critical Dah Lih Machinery Industry Co Ltd
Priority to TW101212665U priority Critical patent/TWM442219U/en
Publication of TWM442219U publication Critical patent/TWM442219U/en

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  • Automatic Control Of Machine Tools (AREA)
  • Numerical Control (AREA)

Description

五、新型說明: 【新型所屬之技術領域】 本新型是有關於-種熱補償建立裝置,特別是指一種 能夠修正熱誤差的工具機的熱補償建立裝置。 【先前技術】 -般工具機會因為本身的幾何誤差,及結構受熱所產 生的熱變形,而影塑加工接命 m 曰 精度’因此’國内現今工具機技 Γ展的關鍵’將在於如何有效的控制熱變形誤差,而當 ^變形誤差補償為最省時'低成本的改善技術》 熱變料差補償技術主要是以溫度、熱變形量 料庫:建=熱變形誤差的補償資料庫,惟,前述補償資 、 疋在該工具機出廠前完成,主要是 裝在該工具機且與-電腦連線的感測器偵測溫度 再透過電腦分析、計算後建立該補償資料庫, 错此,雖然也能夠達到熱補償的目的,卻仍然有下列缺失 具機在建立補償資料庫時所❹的感㈣ 為校正誤差,造成補二:器不同,因此’會因 、裝的咸測哭<<Α員不疋性,且額外使用而必須拆 C、“一、電腦等設備,也會提升組件的繁複性。 :且前述補償資料庫在該工具機出康後已固定無法 此,右该工具機實際工作 y’、 製造場所差里過大_ ㈣W兄條件與该工具機 而無法提升補償量財效影響該補償資料庫的精準度, M442219 【新型内容】 因此,本新型之目的,即在提供一種能夠簡化組件, 及提升補償量有效性的熱補償建立裝置。 於是,該工具機具有一轉動件,及依循該轉動件位移 的一移動件,本新型的熱補償建立裝置包含一溫度感測組 、一距離感測組,及一控制器。該溫度感測組安裝在該工 具機,且用於偵測該卫具機-預定位置的溫度。該距離感 測組安裝在該工具機,且用於偵測該轉動件沿一直線方向 的變形$。該控制器安裝在該工具機且與該距離感測組、 該溫度感測組電連接,且依據變形量、溫度等參數建立一 熱決差模型資料庫,並依據前述熱誤差模型資料庫決定一 補償參數,及依據前述補償參數,獲得等距於該變形量且 反向於變形方向的一補償量。 本新^•的有益效果在於:能夠以同一溫度感測組與同 一距離感測組提供建立該熱誤差模型資料庫、與進行補償 時所需的溫度、變形量等數據來源,不但能夠簡化設備, 且能夠提升補償量的有效性,及提升加工精度。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效,在 以下配合參考圖式之一個較佳實施例的詳細說明中,將可 清楚的呈現。 參閱圖1、圖2,本新型的熱補償建立裝置的一較佳實 施例安裝在一工具機丨。該工具機丨包含一轉動件u、驅動 。亥轉動件11灰轉的—馬達! 2,及依循該轉動件! !位移的 4 M442219 —移動件13。該轉動件11在本較佳實施例為以-X袖為令 二、旋動的螺桿,也可以是以- Μ、或- Z轴為中心旋轉 2桿。該移動件13在本較佳實施例為-工作台。該熱補 2立裝置包含··__溫度感測組2、_距離3,及一 控制器4。 該溫度感測組2具有安裝在該I具機!㈣溫度感測 二21。該等溫度感測器21分別用於須測該工具機丨數預定 位置的溫度。 該㈣❹m3具有絲㈣工具们的—距離感測 m置在該轉動件11上的一環件32。在本較佳實施 “距離感測器3!是一種渦電流位移計,感測原理為 來自於該距離感測器31的磁力線誘發待測物(即該轉動 環件叫的傳輸表面產生渦電流時,會使該環件 ,成傳導材料,致使該環件32的位移量與輸出電壓呈現 二關係,進而能夠感測出該轉動件u沿一直線方向的變 形置。 該控制器4安·|ί^:号1 … 褒在該八機1,且與該距離感測組3、 该溫度感測絚2、該馬連丨2電連接。 、β當該工具機1啟動且進行加工時,該轉動件U會因為 升 X轴方向產生變形,此時,該距離感測器31會 偵測與該環件32間繼的變化值,而獲得該轉動件U: 該二轴方㈣伸長量,並㈣給該㈣m該控制器°4 以則:伸長讀為判斷該轉動件u變形量的依據。而該等 溫度感測器21會價測由該轉動件u傳遞至該工具機i預定 M442219 位置的溫度,並回傳給該控制器4。 藉此,該控制器4會依據前述變形量、溫度等參數, 以多變數回歸分析理論建立— a 熱誤差杈型貧料庫,並依據 刖述熱誤差模型資料庫決宏 _ ^ 夂齡n 償參數,及依據前述補償 ,數,獲付等距於該變报县 、變形®且反向於變形方向的一補償量 ’並控制該馬達12驅動該轉動件11帶動該移動件13移動 二控制器4會依據該馬達12回傳的轉動件u轉動量, =异出/移動件13的位移量,使該移動件13的實際位移 里=該移動件13預設位移量·補償量。 ( 值得一提的是,該控制器4在該轉動件u動作過程中 ’會依據持續回傳的變形量 差模型資料庫。 4等參數,更新前述熱誤 據上所述可知 有下列優點及功效 本新型之工具機的熱補償建立裝置具 本新型能夠以同-溫度感測組2與同一距離感測組2 :建立該熱誤差模型資料庫、與進行補償時所需的溫度 、“量等數據來源,不但能夠簡化設備,且能夠依據該 工具機1實際工作時的環境條件修正該熱誤差模型資料庫 ’而提升補償量的有效性,及提升加工精度。 惟以上所述者,僅為本新型之較佳實施例而已,當不 ,以此限定本新型實施之範園,即大凡依本新Μ請專利 2圍及新型說明内容所作之簡單的等效變化與修飾,皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 M442219 圖1是一前視圖,說明本新型一工具機的熱補償建立 裝置的一較佳實施例;及 圖2是該較佳實施例的一方塊圖。 M442219 【主要元件符號說明】 1…… ····工具機 21 .... ••…溫度感測器 11 ··.· …· ·轉動件 3…… ••…距離感測組 12·.... -----馬達 31…· ••…距離感測器 13 •…移動件 32···.. ••…環件 2…… 、/m度感測組 4…… …··控制器V. New description: [New technical field] The new type is related to a thermal compensation establishing device, in particular to a thermal compensation establishing device for a machine tool capable of correcting thermal errors. [Prior Art] - The general tool opportunity is due to its own geometric error, and the thermal deformation caused by the structure is heated, and the precision of the plastic processing is the same as the accuracy of the current tooling technology. Control the thermal deformation error, and when the deformation error compensation is the most time-saving 'low-cost improvement technology', the thermal variation material compensation technology is mainly based on the temperature and thermal deformation amount library: construction = thermal deformation error compensation database, However, the above compensation funds and 疋 are completed before the machine tool is delivered, mainly because the sensor is connected to the machine and the sensor connected to the computer detects the temperature and then analyzes and calculates the data through the computer to establish the compensation database. Although it can also achieve the purpose of thermal compensation, there are still the following sensations in the establishment of the compensation database (4) for the correction error, resulting in the difference: the device is different, so 'will cause, the salt test cry ; < Α 疋 , , , , , , , , , , , , , , , , , , , , , , , , 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Right, the machine tool actually works y', the manufacturing site is too big _ (four) W brother condition and the machine tool can not improve the compensation amount of financial effect affects the accuracy of the compensation database, M442219 [new content] Therefore, the purpose of this new model, That is, a thermal compensation establishing device capable of simplifying the assembly and improving the effectiveness of the compensation amount is provided. Thus, the machine tool has a rotating member and a moving member following the displacement of the rotating member, and the thermal compensation establishing device of the present invention comprises a a temperature sensing group, a distance sensing group, and a controller. The temperature sensing group is mounted on the machine tool and configured to detect the temperature of the guard machine-predetermined position. The distance sensing group is installed in the a machine tool for detecting deformation of the rotating member in a straight line direction. The controller is mounted on the machine tool and electrically connected to the distance sensing group and the temperature sensing group, and according to parameters such as deformation amount and temperature Establishing a thermal decision model database, and determining a compensation parameter according to the thermal error model database, and obtaining an equidistant deformation amount and a reverse deformation according to the foregoing compensation parameter A compensation amount in the shape direction. The beneficial effect of the new method is that the same temperature sensing group and the same distance sensing group can be used to provide the thermal error model database, and the temperature and deformation amount required for compensation. The data source not only simplifies the equipment, but also improves the effectiveness of the compensation amount and improves the processing accuracy. [Embodiment] The above and other technical contents, features and effects of the present invention are preferably combined with the following reference drawings. In the detailed description of the embodiments, it will be clearly shown. Referring to Figures 1 and 2, a preferred embodiment of the thermal compensation establishing apparatus of the present invention is mounted on a machine tool magazine. The machine tool magazine includes a rotating member u. Driven. The rotating member 11 is grayed--motor! 2, and follows the rotating member!! Displacement of 4 M442219 - moving member 13. In the preferred embodiment, the rotating member 11 is made of -X sleeves. The moving screw can also be rotated by 2 rods centered on the -Μ or -Z axis. The moving member 13 is a workbench in the preferred embodiment. The heat-compensating device includes a temperature sensing group 2, a distance 3, and a controller 4. The temperature sensing group 2 has a machine mounted on the I machine! (4) Temperature sensing II 21. The temperature sensors 21 are respectively used to measure the temperature of the machine tool by a predetermined number of positions. The (four) ❹m3 has a ring member 32 of the wire (4) tool-distance sensing m placed on the rotating member 11. In the preferred embodiment, the distance sensor 3 is an eddy current displacement meter, and the sensing principle is that the magnetic field lines from the distance sensor 31 induce the object to be tested (that is, the eddy current is generated by the rotating surface of the rotating ring member). When the ring member is made into a conductive material, the displacement amount of the ring member 32 is in a relationship with the output voltage, and the deformation of the rotating member u in the straight line direction can be sensed. The controller 4A·| ί^: No. 1 ... is in the eight machine 1, and is electrically connected to the distance sensing group 3, the temperature sensing 絚2, and the horse connecting unit 2. When the machine tool 1 is started and processed, The rotating member U is deformed by the direction of the rising X-axis. At this time, the distance sensor 31 detects the change value with the ring member 32, and obtains the rotating member U: the two-axis square (four) elongation amount, And (4) giving the (four) m the controller °4, then: the elongation reading is the basis for judging the deformation amount of the rotating member u, and the temperature sensors 21 are to be measured by the rotating member u to the machine tool i to reserve M442219 The temperature of the position is returned to the controller 4. Thereby, the controller 4 is based on the aforementioned deformation amount The parameters such as temperature are established by the theory of multivariate regression analysis—a thermal error 杈 type poor treasury, and based on the thermal error model database, the macro _ ^ 夂 n n compensation parameters, and according to the aforementioned compensation, number, payment, etc. a compensation amount from the change report county, deformation® and opposite to the deformation direction and controlling the motor 12 to drive the rotating member 11 to drive the moving member 13 to move the second controller 4 according to the rotating member of the motor 12 u rotation amount, = displacement of the moving/moving member 13, so that the actual displacement of the moving member 13 = the displacement amount and the compensation amount of the moving member 13. (It is worth mentioning that the controller 4 is in the During the operation of the rotating part u, it will be based on the continuous variation of the deformation amount model database. 4 parameters, update the above thermal error, the following advantages and effects can be seen. The thermal compensation establishing device of the new machine tool has the following The new type can sense group 2 and the same distance sensing group 2: establish the thermal error model database, and the temperature and quantity required for compensation, not only can simplify the equipment, but also Machine tool 1 actual The environmental conditions at the time of the correction correct the thermal error model database' to increase the effectiveness of the compensation amount and improve the processing accuracy. However, the above is only the preferred embodiment of the present invention, and if not, the content is limited. The new implementation of the Park, that is, the simple equivalent changes and modifications made by the new patents and the new descriptions are still within the scope of this new patent. [Simple description] M442219 Figure 1 It is a front view showing a preferred embodiment of the thermal compensation establishing device of a machine tool of the present invention; and Fig. 2 is a block diagram of the preferred embodiment. M442219 [Description of main component symbols] 1...... ··· ·Tool machine 21 .... ••...Temperature sensor 11 ·······Rotating part 3...••...distance sensing group 12·.... -----motor 31...· ••...distance sensor 13 •...moving member 32···.. ••...ring 2..., /m degree sensing group 4......controller

Claims (1)

物2219 A、申請專利範圍: I 一種工具機的熱補償 吃且裒置,该工具機具有一轉動件 ,及依循該轉動件位移的— 包含: 移動件,該熱補償建立裝置 一溫度感測組,安裝在兮 在6亥工具機,且用於偵測該工 具機一預定位置的溫度; 一距離感测組,安裝在該工且 動件沿—直線方向的變形量;及 用於偵測該轉 控制益,安裝在該工具機且與該距離感測組、該 溫度感測組電連接,且依據變形量、溫度等參數建立L ^誤^模型資科庫,並依據前述熱誤差模型資料庫決定 :補償參數,及依據前述補償參數,獲得等距於該 1且反向於變形方向的一補償量。 2. 根據中請專利範圍第i項所述之工具機的熱補償建立裝 置,其中,該控制器在該轉動件動作過程中’依 •回傳的變形量、溫度等參數,更新前述熱誤差模型資= 庫。 3. 根射請專利範圍第i項所述之卫具機的熱補償建立裝 置,其中,該溫度感測組具有數溫度感測器。 、Object 2219 A, the scope of application: I A thermal compensation of a machine tool eats and sets, the machine tool has a rotating member, and according to the displacement of the rotating member - comprises: a moving member, the thermal compensation establishing device - temperature sensing a set, installed in a 6-inch machine tool, and used to detect the temperature of a predetermined position of the machine tool; a distance sensing group, the amount of deformation installed in the work and the moving piece along the line direction; and for detecting Measuring the control benefit, installed in the machine tool and electrically connected with the distance sensing group and the temperature sensing group, and establishing an L ^ erroneous model fund library according to parameters such as deformation amount and temperature, and according to the aforementioned thermal error The model database determines: the compensation parameter, and according to the aforementioned compensation parameter, obtains a compensation amount equidistant from the 1 and opposite to the deformation direction. 2. The thermal compensation establishing device of the machine tool according to item i of the patent application scope, wherein the controller updates the thermal error according to parameters such as deformation amount and temperature during the operation of the rotating member Model capital = library. 3. The thermal compensation establishing device of the implement machine according to item i of the patent scope is claimed, wherein the temperature sensing group has a plurality of temperature sensors. ,
TW101212665U 2012-06-29 2012-06-29 Thermal compensation device for machine tool TWM442219U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI556075B (en) * 2015-02-17 2016-11-01 Victor Taichung Machinery Works Co Ltd The system and method of thermal deformation correction for CNC machine
TWI772717B (en) * 2018-12-14 2022-08-01 瑞士商阿奇夏米爾公司 Positioning machine, device for mechanical correction of mounting surface of axis guide component of positioning machine, and method for mechanical correction of geometric motion errors of positioning machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI556075B (en) * 2015-02-17 2016-11-01 Victor Taichung Machinery Works Co Ltd The system and method of thermal deformation correction for CNC machine
TWI772717B (en) * 2018-12-14 2022-08-01 瑞士商阿奇夏米爾公司 Positioning machine, device for mechanical correction of mounting surface of axis guide component of positioning machine, and method for mechanical correction of geometric motion errors of positioning machine

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