TWI385317B - Pre-pressure adjustment apparatus of an electrothermal spindle ball module - Google Patents
Pre-pressure adjustment apparatus of an electrothermal spindle ball module Download PDFInfo
- Publication number
- TWI385317B TWI385317B TW98146621A TW98146621A TWI385317B TW I385317 B TWI385317 B TW I385317B TW 98146621 A TW98146621 A TW 98146621A TW 98146621 A TW98146621 A TW 98146621A TW I385317 B TWI385317 B TW I385317B
- Authority
- TW
- Taiwan
- Prior art keywords
- thermoelectric
- pressing member
- adjusting device
- ball set
- spindle ball
- Prior art date
Links
Landscapes
- Support Of The Bearing (AREA)
Description
本發明係關於一種熱電式主軸滾珠套件預壓調整裝置，特別係關於一種不易損壞及製作成本較低之熱電式主軸滾珠套件預壓調整裝置。The invention relates to a thermoelectric spindle ball set pre-pressure adjusting device, in particular to a thermoelectric spindle ball set pre-pressure adjusting device which is not easy to damage and has low manufacturing cost.
一種習知主軸滾珠套件預壓裝置9，係中華民國公告第314160號「軸承之壓電式預壓裝置」新型專利，其設置於一旋轉主軸91的斜角滾珠軸承92之間，該其中一斜角滾珠軸承92的外環921抵靠在一預壓調變座93之一凸起塊931側邊，該另一相鄰斜角滾珠軸承92的外環921則抵靠於一主軸前端主體94之一凸起塊941側邊，且該預壓調變座93之端面貼近該主軸前端主體94之端面。該主軸前端主體94設有數個槽孔942，各該槽孔942內依序設置有一測力計95、一壓電致動器96及一調整螺絲97，該壓電致動器96被夾置於該測力計95及調整螺絲97之間，該調整螺絲97可調整的螺合於該槽孔942內，該測力計95則抵靠於該預壓調變座93之端面。另外，該預壓調變座93面向該主軸前端主體94的端面上環設有數個容置孔932，數個預壓彈簧98對應設置於該容置孔932內，且各該預壓彈簧98之二端分別抵靠於該主軸前端主體94端面及容置孔932內壁面。A conventional spindle ball set preloading device 9 is a new patent of the "Piezoelectric preloading device for bearings" of the Republic of China Announcement No. 314160, which is disposed between the bevel ball bearings 92 of a rotating main shaft 91, one of which The outer ring 921 of the bevel ball bearing 92 abuts against a side of a convex block 931 of a pre-pressure adjusting seat 93, and the outer ring 921 of the other adjacent bevel ball bearing 92 abuts against a spindle front end body. One of the protrusions 941 has a side edge, and an end surface of the pre-pressure modulation block 93 is adjacent to an end surface of the spindle front end body 94. The spindle front end body 94 is provided with a plurality of slots 942. Each of the slots 942 is provided with a dynamometer 95, a piezoelectric actuator 96 and an adjusting screw 97. The piezoelectric actuator 96 is sandwiched. Between the dynamometer 95 and the adjusting screw 97, the adjusting screw 97 is adjustably screwed into the slot 942, and the dynamometer 95 abuts against the end surface of the pre-pressure adjusting seat 93. In addition, a plurality of accommodating holes 932 are formed in the end surface of the front end main body 94 of the pre-pressure adjusting seat 93. A plurality of pre-stressing springs 98 are correspondingly disposed in the accommodating holes 932, and each of the pre-stressing springs 98 The two ends abut against the end surface of the front end main body 94 of the main shaft and the inner wall surface of the receiving hole 932.
藉由該數個預壓彈簧98預先施予一輕預壓力於該預壓調變座93及主軸前端主體94，使各該斜角滾珠軸承92相對該旋轉主軸91產生初始預壓值。一般而言，軸承預壓值係對應該旋轉主軸91的轉速及切削條件做適當的調整，以使該旋轉主軸91的剛性、精度及使用壽命等達到最佳化的目的。其中，軸承預壓值越大，該旋轉主軸91的穩定性也越高，但該滾珠922的負荷也越大，使用壽命也因此容易縮短，故當該旋轉主軸91在高速運轉的情況下，大都選擇較小的軸承預壓值，以降低摩擦熱及延長軸承使用壽命；反之，在重負荷的情況下則採用較大的軸承預壓值，以增加該旋轉主軸91的剛性及承載力。A preloading adjustment seat 93 and a spindle front end body 94 are preliminarily applied to the preloading adjustment seat 93 and the spindle front end main body 94 by the plurality of preload springs 98, so that each of the bevel ball bearings 92 generates an initial preload value with respect to the rotating main shaft 91. In general, the bearing preload value is appropriately adjusted in accordance with the rotational speed and cutting conditions of the rotating main shaft 91, so that the rigidity, accuracy, and service life of the rotating main shaft 91 are optimized. Wherein, the greater the bearing preload value, the higher the stability of the rotating main shaft 91, but the load of the ball 922 is also larger, and the service life is also easily shortened, so when the rotating main shaft 91 is operated at a high speed, Most of them choose a smaller bearing preload value to reduce the friction heat and prolong the bearing life; conversely, in the case of heavy load, a larger bearing preload value is used to increase the rigidity and bearing capacity of the rotating main shaft 91.
該習知主軸滾珠套件預壓裝置9藉由該測力計95來偵測軸承預壓值的大小，並即時回饋給使用者監控，若使用者需要改變軸承預壓值時，使用者可經由外加電壓控制該壓電致動器96產生軸向的伸長形變，改變該預壓調變座93及主軸前端主體94之間的間距距離，以達到調整及修正軸承預壓量的目的。The conventional spindle ball set preloading device 9 detects the bearing preload value by the dynamometer 95, and immediately feeds back to the user for monitoring. If the user needs to change the bearing preload value, the user can The applied voltage controls the piezoelectric actuator 96 to generate an axial elongation deformation, and changes the distance between the pre-pressure modulation seat 93 and the spindle front end main body 94 to achieve the purpose of adjusting and correcting the bearing preload.
然而，該習知主軸滾珠套件預壓裝置9係利用該壓電致動器96直接抵推該預壓調變座93及主軸前端主體94，以致該壓電致動器96亦持續受到反作用力的影響而處在高壓力的操作環境下；更何況，該壓電致動器96係由多片壓電材料層疊而成，其結構強度較為脆弱，其容易因長時間處於惡劣的高壓環境下而毀損，以致影響該習知主軸滾珠套件預壓裝置9的預壓精確度，甚至縮減其使用壽命。基於上述原因，前述習知主軸滾珠套件預壓裝置9其確實有加以改善之必要。However, the conventional spindle ball set preloading device 9 directly pushes the preloading adjustment seat 93 and the spindle front end body 94 by the piezoelectric actuator 96, so that the piezoelectric actuator 96 is also continuously subjected to a reaction force. The effect is in a high-pressure operating environment; not to mention, the piezoelectric actuator 96 is formed by laminating a plurality of piezoelectric materials, and its structural strength is relatively fragile, which is prone to being subjected to a severe high-pressure environment for a long time. The damage is so detrimental that the preloading accuracy of the conventional spindle ball set preloading device 9 is affected, and even its service life is reduced. For the above reasons, the aforementioned conventional spindle ball set preloading device 9 does have a need for improvement.
本發明係提供一種熱電式主軸滾珠套件預壓調整裝置，主要係提供一種不易損壞之預壓方式，以延長預壓裝置的整體使用壽命，為本發明之目的。The invention provides a thermoelectric spindle ball set pre-pressure adjusting device, which mainly provides a pre-pressing mode which is not easy to damage, so as to extend the overall service life of the pre-pressing device, which is the object of the invention.
本發明係提供一種熱電式主軸滾珠套件預壓調整裝置，係具有較低的製作成本，為本發明之另一目的。The present invention provides a thermoelectric spindle ball set preload adjusting device, which has a lower manufacturing cost and is another object of the present invention.
為達到前述發明目的，本發明所運用之技術手段及藉由該技術手段所能達到之功效包含有：一種熱電式主軸滾珠套件預壓調整裝置，其係應用於一加工設備上之二個相鄰的輔助套件之間，該輔助套件套設於一旋轉主軸之外周面，其特徵在於：至少一預壓單元被夾設於該二個相鄰的輔助套件之間，且該預壓單元電性連接一控制單元，該預壓單元具有一壓掣件及一熱電元件，該壓掣件之二端分別直接或間接的抵靠於該二相鄰之輔助套件的相向端面，該熱電元件與該壓掣件相貼接，藉由該控制單元控制該熱電元件的溫度以改變該壓掣件之伸長量，以調整該輔助套件與該旋轉主軸之間的預壓值。In order to achieve the foregoing object, the technical means and the functions achievable by the technical method include: a thermoelectric spindle ball set pre-pressure adjusting device applied to two phases on a processing device Between adjacent auxiliary sets, the auxiliary set is sleeved on a peripheral surface of a rotating main shaft, characterized in that at least one pre-pressing unit is sandwiched between the two adjacent auxiliary sets, and the pre-pressing unit is electrically Connecting a control unit, the pre-compression unit has a pressing member and a thermoelectric element, and the two ends of the pressing member directly or indirectly abut against opposite end faces of the two adjacent auxiliary sets, the thermoelectric element and The pressing member is attached, and the temperature of the thermoelectric element is controlled by the control unit to change the elongation of the pressing member to adjust a preload value between the auxiliary set and the rotating main shaft.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：請參照第2圖所示，本發明之熱電式主軸滾珠套件預壓調整裝置主要係應用於一加工設備1(銑削設備或進給設備或其他旋轉加工設備)上，該加工設備1至少包含一機台本體11、一旋轉主軸12及數個輔助套件13，該旋轉主軸12及輔助套件13設置於該機台本體11內，且該數個輔助套件13套設於該旋轉主軸12之外周面，以便該旋轉主軸12可相對該輔助套件13形成轉動。其中，本實施例加工設備1之旋轉主軸12選擇以具有光滑表面的金屬軸桿，且該輔助套件13選自一滾珠軸承作為第一實施例之實施樣態說明。The above and other objects, features and advantages of the present invention will become more <RTIgt; The thermoelectric spindle ball set pre-pressure adjusting device of the invention is mainly applied to a processing device 1 (milling device or feeding device or other rotating processing device), and the processing device 1 comprises at least one machine body 11 and a rotating spindle 12 and a plurality of auxiliary sets 13 , the rotating main shaft 12 and the auxiliary set 13 are disposed in the machine body 11 , and the plurality of auxiliary sets 13 are sleeved on the outer peripheral surface of the rotating main shaft 12 so that the rotating main shaft 12 can be opposite The auxiliary kit 13 forms a rotation. Wherein, the rotating main shaft 12 of the processing apparatus 1 of the present embodiment is selected as a metal shaft having a smooth surface, and the auxiliary assembly 13 is selected from a ball bearing as an embodiment of the first embodiment.
請參照第2至4圖所示，本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置包含至少一預壓單元2及一控制單元3，本實施例係選用三個預壓單元2以120度間隔排列的設置於該機台本體11之一間隔環111及一預壓調變環112之間(如第3圖所示)，使得該間隔環111與該預壓調變環112之間留有一間隔距離D(如第4圖所示)，其中該間隔環111之一抵頂部1111抵靠於該二相鄰輔助套件13、13’之其中一個的外環131端面，該預壓調變環112之一限位凸部1121則抵靠於該另一輔助套件13’的外環131’端面。該控制單元3與該預壓單元2電性連接，使用者可經由該控制單元3控制該預壓單元2改變該間隔環111及預壓調變環112之間的間隔距離D，藉此調整該輔助套件13相對該旋轉主軸12的預壓值。Referring to Figures 2 to 4, the thermoelectric spindle ball set pre-pressure adjusting device according to the first embodiment of the present invention comprises at least one pre-pressing unit 2 and a control unit 3. In this embodiment, three pre-pressing units 2 are selected. The spacer ring 111 and the pre-pressure modulation ring 112 are disposed between the spacer ring 111 and the pre-stressing modulation ring 112 (as shown in FIG. 3). There is a separation distance D (as shown in FIG. 4), wherein one of the spacer rings 111 abuts against the top end 1111 against the end surface of the outer ring 131 of one of the two adjacent auxiliary sets 13, 13'. One of the limiting protrusions 1121 of the pressure regulating ring 112 abuts against the end surface of the outer ring 131' of the other auxiliary set 13'. The control unit 3 is electrically connected to the pre-compression unit 2, and the user can control the pre-press unit 2 to change the separation distance D between the spacer ring 111 and the pre-pressure modulation ring 112, thereby adjusting The preload value of the auxiliary set 13 relative to the rotating main shaft 12.
該預壓單元2係設有一壓掣件21及一熱電元件22，該壓掣件21較佳選自具高熱膨脹率及高機械強度之金屬材質製成(例如：鐵、銅、鋁合金等)，且其較佳為長度大於寬度的高細長比幾何形狀(例如：長立方體、長圓柱體等)，且長度最佳為寬度的兩倍以上。本實施例之壓掣件21選自長圓柱體，該壓掣件21長邊的二端係分別直接或間接的抵靠於該二相鄰之輔助套件13、13’的端面。其中，本實施例選擇讓該壓掣件21之二端分別抵頂於該間隔環111之一定位槽1112及預壓調變環112之一定位槽1122內，以便該壓掣件21能夠間接的抵推該二輔助套件13、13’，且讓該間隔環111與該預壓調變環112之間留有該間隔距離D。另外，該壓掣件21之一端設有一測力計4，該測力計4亦電性連接該控制單元3。The pre-pressing unit 2 is provided with a pressing member 21 and a thermoelectric element 22, and the pressing member 21 is preferably made of a metal material having a high thermal expansion coefficient and high mechanical strength (for example, iron, copper, aluminum alloy, etc.). And preferably it is a high slender geometry having a length greater than the width (e.g., a long cube, a long cylinder, etc.) and the length is preferably more than twice the width. The pressing member 21 of the present embodiment is selected from the long cylindrical body, and the two ends of the long sides of the pressing member 21 are directly or indirectly abutted against the end faces of the two adjacent auxiliary sets 13, 13'. In this embodiment, the two ends of the pressing member 21 are respectively disposed in the positioning groove 1112 of the spacer ring 111 and the positioning groove 1122 of the pre-stressing ring 112, so that the pressing member 21 can be indirectly The two auxiliary sets 13, 13' are pushed against each other, and the separation distance D is left between the spacer ring 111 and the pre-pressure modulation ring 112. In addition, one end of the pressing member 21 is provided with a dynamometer 4, and the dynamometer 4 is also electrically connected to the control unit 3.
該熱電元件22電性連接該控制單元3，該熱電元件22具有一內端221及一外端222，該內端221及外端222分別為該熱電元件22之相對二端面。該熱電元件22透過該內端221貼設於該壓掣件21之外周面，且該內端221較佳與該壓掣件21之間具有較大範圍之接觸面積，因此本實施例選擇該熱電元件22透過該內端221包覆於該壓掣件21之外周面，藉此提升該壓掣件21與該熱電元件22之間的熱交換效率。The thermoelectric element 22 is electrically connected to the control unit 3. The thermoelectric element 22 has an inner end 221 and an outer end 222. The inner end 221 and the outer end 222 are opposite end faces of the thermoelectric element 22, respectively. The thermoelectric element 22 is attached to the outer peripheral surface of the pressing member 21 through the inner end 221, and the inner end 221 preferably has a large contact area with the pressing member 21, so this embodiment selects the The thermoelectric element 22 is coated on the outer peripheral surface of the pressure member 21 through the inner end 221, thereby improving the heat exchange efficiency between the pressure member 21 and the thermoelectric element 22.
請參照第2、4及5圖所示，本發明同時利用數個預壓彈簧14及至少一預壓單元2來施加預壓，該加工設備1之初始狀態係藉由該預壓彈簧14施予一預壓力於該間隔環111及預壓調變環112，使該二輔助套件13相對該旋轉主軸12產生一初始預壓值。若使用者欲增加該輔助套件13相對該旋轉主軸12之預壓值時，可透過該控制單元3經由電流的輸出來控制該熱電元件22的內端221加熱該壓掣件21，隨著該壓掣件21溫度的提升，該壓掣件21的長度也隨著體積的膨脹而增加，以改變該間隔環111與該預壓調變環112之間的間隔距離D擴大為間隔距離D’，藉此增加該二輔助套件13、13’相對該旋轉主軸12的預壓值。Referring to Figures 2, 4 and 5, the present invention simultaneously applies a plurality of preloading springs 14 and at least one preloading unit 2 to apply preload. The initial state of the processing apparatus 1 is applied by the preloading spring 14 A pre-pressure is applied to the spacer ring 111 and the pre-stressing ring 112 to cause the two auxiliary sets 13 to generate an initial preload value relative to the rotating main shaft 12. If the user wants to increase the preload value of the auxiliary assembly 13 relative to the rotating main shaft 12, the inner end 221 of the thermoelectric element 22 can be controlled to heat the pressing member 21 through the output of the current through the control unit 3, The temperature of the pressure piece 21 is increased, and the length of the pressure piece 21 is also increased with the expansion of the volume, so as to change the distance D between the spacer ring 111 and the pre-pressure modulation ring 112 to increase the separation distance D'. Thereby, the preload value of the two auxiliary sets 13, 13' relative to the rotating main shaft 12 is increased.
使用者可經由該測力計4來偵測該預壓值的大小，並即時回饋給使用者監控，以確保該預壓值是否符合作業需求，此外，該測力計4亦可以一距離感測元件替代，距離感測元件可設於該間隔環111或該預壓調變環112之一者，用以測量該間隔環111與該預壓調變環112之間的間隔距離D的改變量，再轉換成該預壓值的大小。若使用者需要依照該旋轉主軸12的轉速及相對加工物件的切削條件(例如：加工物件的硬度或切削方式等)改變該預壓值時，亦可利用該控制單元3控制該熱電元件22上的電流大小及方向，進而控制該壓掣件21的伸長量，達到線上調整及修正該預壓值的目的。The user can detect the magnitude of the preload value through the dynamometer 4, and immediately feedback to the user to ensure whether the preload value meets the operation requirement. In addition, the dynamometer 4 can also feel a sense of distance. Alternatively, the distance sensing element may be disposed in the spacer ring 111 or the one of the pre-pressure modulation ring 112 to measure the change of the separation distance D between the spacer ring 111 and the pre-pressure modulation ring 112. The amount is converted to the magnitude of the preload value. If the user needs to change the preload value according to the rotation speed of the rotating main shaft 12 and the cutting condition of the workpiece (for example, the hardness or cutting manner of the workpiece), the control unit 3 can also be used to control the thermoelectric element 22. The magnitude and direction of the current, thereby controlling the elongation of the pressure member 21, achieves the purpose of adjusting and correcting the preload value on the line.
另外，請參照第6圖所示，其揭示本發明第一實施例之另一實施樣態，其中該壓掣件21之二端亦可直接抵靠於該輔助套件13、13’之相向端面，以達到朝相反方向抵推該輔助套件13、13’之外環131、131’的目的，藉此調整及修正該二輔助套件13、13’相對該旋轉主軸12的預壓值。In addition, referring to FIG. 6 , another embodiment of the first embodiment of the present invention is disclosed, wherein the two ends of the pressing member 21 can also directly abut the opposite end faces of the auxiliary set 13 , 13 ′. In order to achieve the purpose of pushing the auxiliary sets 13, 13' outer rings 131, 131' in opposite directions, thereby adjusting and correcting the preload values of the two auxiliary sets 13, 13' with respect to the rotating main shaft 12.
本發明的技術特點在於：藉由該壓掣件21之二端直接抵靠於該輔助套件13、13’之外環131、131’的相向端面(如第6圖所示)，或者抵靠於該間隔環111及預壓調變環112的相向端面來間接抵推該外環131、131’(如第2圖所示)，並透過該熱電元件22控制該壓掣件21的伸長量，以達到調整及修正該二輔助套件13、13’相對該旋轉主軸12之預壓值的目的。其中，由於該壓掣件21係由高機械強度金屬材質一體成形製成，故該壓掣件21具有能夠長時間處於高壓狀態下的結構強度，而不易損壞。同時，結構強度較弱之該熱電元件22僅包覆於該壓掣件21外周面，而不直接與該間隔環111、預壓調變環112或輔助套件13相抵接，該熱電元件22不會因外力壓迫而受損，使得本發明確實相較於習知壓電式的主軸滾珠套件預壓裝置9具有延長裝置使用壽命的功效。The technical feature of the present invention is that the two ends of the pressing member 21 directly abut against the opposite end faces of the outer rings 131, 131' of the auxiliary set 13, 13' (as shown in FIG. 6), or abut against The outer ring 131, 131' (as shown in FIG. 2) is indirectly pushed against the opposite end faces of the spacer ring 111 and the pre-stressing ring 112, and the elongation of the pressing member 21 is controlled by the thermoelectric element 22. In order to adjust and correct the pre-pressure value of the two auxiliary sets 13, 13' relative to the rotating main shaft 12. Wherein, since the pressing member 21 is integrally formed of a high mechanical strength metal material, the pressing member 21 has a structural strength capable of being in a high pressure state for a long time, and is not easily damaged. At the same time, the thermoelectric element 22 having a weak structural strength is only coated on the outer circumferential surface of the pressing member 21, and does not directly abut the spacer ring 111, the pre-pressure modulation ring 112 or the auxiliary package 13, and the thermoelectric element 22 does not It will be damaged by external force compression, so that the present invention has the effect of extending the life of the device compared to the conventional piezoelectric spindle ball set preloading device 9.
另外，由於該壓掣件21為高細長比的金屬元件，因此當該壓掣件21的體積膨脹時，該壓掣件21因膨脹所增加的長度遠大於其所增加的寬度，藉此提升預壓值修正及調整的精確度及靈敏度。In addition, since the pressing member 21 is a metal element having a high slender ratio, when the volume of the pressing member 21 is expanded, the length of the pressing member 21 due to expansion is much larger than the increased width thereof, thereby improving Accuracy and sensitivity of preload correction and adjustment.
請參照7及8圖所示，其揭示本發明第二實施例之熱電式主軸滾珠套件預壓調整裝置，相較於第一實施例，第二實施之熱電式主軸滾珠套件預壓調整裝置選擇應用於以螺桿及滾珠螺帽作為該旋轉主軸12及輔助套件13之加工設備1。其中，該第二實施例之熱電式主軸滾珠套件預壓調整裝置設置於該相鄰之二輔助套件13、13’之間，該壓掣件21之二端分別抵靠於該間隔環111及預壓調變環112的相向端面來間接抵推該外環輔助套件13、13’朝相反方向位移，藉此調整及修正該二輔助套件13、13’相對該旋轉主軸12的預壓值。Referring to Figures 7 and 8, there is disclosed a thermoelectric spindle ball set preload adjusting device according to a second embodiment of the present invention. Compared with the first embodiment, the second embodiment of the thermoelectric spindle ball set preload adjusting device is selected. It is applied to a processing apparatus 1 using a screw and a ball nut as the rotating main shaft 12 and the auxiliary kit 13. The thermoelectric spindle ball set pre-pressure adjusting device of the second embodiment is disposed between the adjacent two auxiliary sets 13 and 13', and the two ends of the pressing member 21 abut against the spacer ring 111 and The opposite end faces of the pre-stressing ring 112 indirectly urge the outer ring auxiliary sets 13, 13' to be displaced in opposite directions, thereby adjusting and correcting the preload values of the two auxiliary sets 13, 13' with respect to the rotating main shaft 12.
請參照第9圖所示，本實施例之熱電式主軸滾珠套件預壓調整裝置另設有複數隔熱單元5，該等隔熱單元5包覆於該壓掣件21之外周面，且該熱電元件22被夾置於該壓掣件21及隔熱單元5之間，藉此避免不必要的熱能散失及達到確實預壓的效果，提升該壓掣件21與該熱電元件22之間的熱交換效率。其中，該隔熱單元5係選擇為保麗龍或隔熱棉等。As shown in FIG. 9 , the thermoelectric spindle ball set pre-pressure adjusting device of the present embodiment is further provided with a plurality of heat insulating units 5 , and the heat insulating units 5 are wrapped around the outer peripheral surface of the pressing member 21 , and the The thermoelectric element 22 is sandwiched between the pressing member 21 and the heat insulating unit 5, thereby avoiding unnecessary heat energy loss and achieving a positive preloading effect, and enhancing the relationship between the pressing member 21 and the thermoelectric element 22. Heat exchange efficiency. The heat insulating unit 5 is selected from a styrofoam or an insulating cotton.
再者，由於壓電材料需要較高的量測精度及品質，其製造成本相較熱電材料來得高，且在結構上的抗壓強度也較差。反觀本發明之預壓單元2係由具有高機械強度之該壓掣件21及低成本之熱電元件22所構成，使得本發明能夠同時兼具有使用壽命長及製作成本較低等優點。Furthermore, since the piezoelectric material requires high measurement accuracy and quality, the manufacturing cost is higher than that of the thermoelectric material, and the structural compressive strength is also poor. In contrast, the pre-pressing unit 2 of the present invention is composed of the pressing member 21 having high mechanical strength and the low-temperature thermoelectric element 22, so that the present invention can simultaneously have the advantages of long service life and low manufacturing cost.
雖然本發明之熱電式主軸滾珠套件預壓調整裝置於前述各實施例中主要係設置於該二個相鄰之輔助套件13、13之間作為實施樣態說明，但在實際使用上該熱電式主軸滾珠套件預壓調整裝置並不受限於此，該預壓單元2之壓掣件21一端亦可直接抵靠於該加工設備之一抵靠端面(例如：機台本體或間隔環端面)，另一端則直接或間接的抵靠於一個輔助套件13朝向該抵靠端面之側面上，如此亦可達到相同於本發明調整或修正預壓值的目的，其亦屬本發明之保護範疇。Although the thermoelectric spindle ball set preload adjusting device of the present invention is mainly disposed between the two adjacent auxiliary sets 13 and 13 in the foregoing embodiments as an embodiment, the pyroelectric type is actually used. The spindle ball set pre-pressure adjusting device is not limited thereto, and one end of the pressing member 21 of the pre-pressing unit 2 can also directly abut against one end of the processing device (for example, the machine body or the spacer ring end surface). The other end directly or indirectly abuts against the side of the auxiliary sleeve 13 facing the abutting end face, so that the same purpose of adjusting or correcting the pre-pressure value is also achieved, which is also the protection scope of the present invention.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
1．．．加工設備1. . . Processing Equipment
11．．．機台本體11. . . Machine body
111．．．間隔環111. . . Spacer ring
1111．．．抵頂部1111. . . To the top
1112．．．定位槽1112. . . Positioning slot
112．．．預壓調變環112. . . Preloading modulation ring
1121．．．限位凸部1121. . . Limiting convex
1122．．．定位槽1122. . . Positioning slot
12．．．旋轉主軸12. . . Rotary spindle
13．．．輔助套件13. . . Auxiliary kit
131．．．外環131. . . Outer ring
13’．．．輔助套件13’. . . Auxiliary kit
131’．．．外環131’. . . Outer ring
14．．．預壓彈簧14. . . Preload spring
2．．．預壓單元2. . . Preload unit
21．．．壓掣件twenty one. . . Pressure piece
22．．．熱電元件twenty two. . . Thermoelectric element
221．．．內端221. . . Inner end
222．．．外端222. . . Outer end
3．．．控制單元3. . . control unit
4．．．測力計4. . . Dynamometer
5．．．隔熱單元5. . . Insulation unit
D．．．間隔距離D. . . Spacing distance
D’．．．間隔距離D’. . . Spacing distance
9．．．主軸滾珠套件預壓裝置9. . . Spindle ball set preloading device
91．．．旋轉主軸91. . . Rotary spindle
92．．．斜角滾珠軸承92. . . Oblique ball bearing
921．．．外環921. . . Outer ring
922．．．滾珠922. . . Ball
93．．．預壓調變座93. . . Preloading
931．．．凸起塊931. . . Raised block
932．．．容置孔932. . . Socket hole
94．．．主軸前端主體94. . . Spindle front end body
941．．．凸起塊941. . . Raised block
942．．．槽孔942. . . Slot
95．．．測力計95. . . Dynamometer
96．．．壓電致動器96. . . Piezoelectric actuator
97．．．調整螺絲97. . . Adjustment screw
98．．．預壓彈簧98. . . Preload spring
第1圖：習知壓電式主軸滾珠套件預壓調整裝置之組合剖視圖。Fig. 1 is a sectional view showing the combination of a conventional piezoelectric spindle ball set preload adjusting device.
第2圖：本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置之組合剖視圖。Fig. 2 is a sectional view showing the combination of a thermoelectric spindle ball set preload adjusting device according to a first embodiment of the present invention.
第3圖：本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置沿第2圖3-3線之剖視圖。Fig. 3 is a cross-sectional view of the thermoelectric spindle ball set preload adjusting device of the first embodiment of the present invention taken along line 3-3 of Fig. 2.
第4圖：本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置之壓掣件未改變二個兩相鄰輔助套件之間的間隔距離之前的局部放大及作動示意圖。Fig. 4 is a partial enlarged view showing the operation of the pressing member of the thermoelectric spindle ball set pre-pressure adjusting device according to the first embodiment of the present invention before changing the separation distance between two adjacent auxiliary sets.
第5圖：本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置之壓掣件改變二個兩相鄰輔助套件之間的間隔距離之後的局部放大及作動示意圖。Fig. 5 is a partial enlarged and actuated diagram of the pressing member of the thermoelectric spindle ball set pre-pressure adjusting device according to the first embodiment of the present invention after changing the separation distance between two adjacent auxiliary sets.
第6圖：本發明第一實施例之熱電式主軸滾珠套件預壓調整裝置另一實施樣態之組合剖視圖。Fig. 6 is a sectional view showing a combination of another embodiment of the thermoelectric spindle ball set preload adjusting device of the first embodiment of the present invention.
第7圖：本發明第二實施例之熱電式主軸滾珠套件預壓調整裝置之組合剖視圖。Figure 7 is a cross-sectional view showing the combination of a thermoelectric spindle ball set preload adjusting device according to a second embodiment of the present invention.
第8圖：本發明第二實施例之熱電式主軸滾珠套件預壓調整裝置沿第7圖8-8線之剖視圖。Fig. 8 is a cross-sectional view of the thermoelectric spindle ball set preload adjusting device of the second embodiment of the present invention taken along line 8-8 of Fig. 7.
第9圖：本發明第二實施例之熱電式主軸滾珠套件預壓調整裝置之局部放大圖。Fig. 9 is a partially enlarged view showing the thermoelectric spindle ball set preload adjusting device of the second embodiment of the present invention.
1．．．加工設備1. . . Processing Equipment
11．．．機台本體11. . . Machine body
111．．．間隔環111. . . Spacer ring
1111．．．抵頂部1111. . . To the top
1112．．．定位槽1112. . . Positioning slot
112．．．預壓調變環112. . . Preloading modulation ring
1121．．．限位凸部1121. . . Limiting convex
1122．．．定位槽1122. . . Positioning slot
12．．．旋轉主軸12. . . Rotary spindle
13．．．輔助套件13. . . Auxiliary kit
131．．．外環131. . . Outer ring
13’．．．輔助套件13’. . . Auxiliary kit
131’．．．外環131’. . . Outer ring
14．．．預壓彈簧14. . . Preload spring
2．．．預壓單元2. . . Preload unit
21．．．壓掣件twenty one. . . Pressure piece
22．．．熱電元件twenty two. . . Thermoelectric element
3．．．控制單元3. . . control unit
4．．．測力計4. . . Dynamometer
Claims (18)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98146621A TWI385317B (en) | 2009-12-31 | 2009-12-31 | Pre-pressure adjustment apparatus of an electrothermal spindle ball module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98146621A TWI385317B (en) | 2009-12-31 | 2009-12-31 | Pre-pressure adjustment apparatus of an electrothermal spindle ball module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201122258A TW201122258A (en) | 2011-07-01 |
| TWI385317B true TWI385317B (en) | 2013-02-11 |
Family
ID=45046015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW98146621A TWI385317B (en) | 2009-12-31 | 2009-12-31 | Pre-pressure adjustment apparatus of an electrothermal spindle ball module |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI385317B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319235A (en) * | 2014-06-25 | 2016-02-10 | 上银科技股份有限公司 | Method for detecting residual rate of pre-pressure |
| CN105538039A (en) * | 2016-02-05 | 2016-05-04 | 河南正航主轴科技有限公司 | Intelligent electric spindle control implementation method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI716263B (en) * | 2020-01-17 | 2021-01-11 | 上銀科技股份有限公司 | Ball screw for immediate measurement and adjustment of preloading |
| CN113280091B (en) * | 2020-02-19 | 2022-06-10 | 上银科技股份有限公司 | Ball screw capable of real-time measuring and adjusting pre-pressure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW499346B (en) * | 2001-06-07 | 2002-08-21 | Ind Tech Res Inst | Method for automatically and dynamically adjusting preload of spindle bearings and the device thereof |
-
2009
- 2009-12-31 TW TW98146621A patent/TWI385317B/en active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW499346B (en) * | 2001-06-07 | 2002-08-21 | Ind Tech Res Inst | Method for automatically and dynamically adjusting preload of spindle bearings and the device thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319235A (en) * | 2014-06-25 | 2016-02-10 | 上银科技股份有限公司 | Method for detecting residual rate of pre-pressure |
| CN105319235B (en) * | 2014-06-25 | 2018-03-13 | 上银科技股份有限公司 | Method for detecting residual rate of pre-pressure |
| CN105538039A (en) * | 2016-02-05 | 2016-05-04 | 河南正航主轴科技有限公司 | Intelligent electric spindle control implementation method |
| CN105538039B (en) * | 2016-02-05 | 2018-01-30 | 河南正航主轴科技有限公司 | Intelligent electro spindle controls implementation |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201122258A (en) | 2011-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI385317B (en) | Pre-pressure adjustment apparatus of an electrothermal spindle ball module | |
| US6422757B1 (en) | Active piezoelectric spindle bearing preload adjustment mechanism | |
| JP2011080586A (en) | Electric disc brake | |
| JP2004360782A (en) | Bearing for automotive wheel | |
| US8166852B2 (en) | Ratchet wrench | |
| TWI572797B (en) | Double nut ball screw with sensing preload function | |
| CN201067860Y (en) | Hand-hold type power tool | |
| JP5218137B2 (en) | Bearing device, rotary table of machine tool, and spindle device | |
| KR20100075578A (en) | Bearing device | |
| CN113710926A (en) | Lead screw device capable of detecting prepressing | |
| WO2022210720A1 (en) | Bearing device, spindle device, and spacer | |
| WO2021131662A1 (en) | Bearing device, spindle device, bearing and spacer | |
| KR20210068533A (en) | Bearing device and preload sensor | |
| KR200492252Y1 (en) | Smart ball screw device | |
| JP3993857B2 (en) | Pressure sensor | |
| CN101342677B (en) | Hand-hold power tool | |
| KR102330434B1 (en) | Ball screw capable of measuring and adjusting preload in real time | |
| CN207657259U (en) | Lamination pressing device | |
| JP4223300B2 (en) | Bearings for automobile wheels | |
| CN110671454A (en) | Main adjusting mechanism of clearance self-adjusting device in disc brake | |
| JP2007024174A (en) | Ball screw mechanism | |
| JP4446111B2 (en) | Electric brake device | |
| TWI329718B (en) | Adjustable spacer for a ball screw | |
| CN210830256U (en) | Main adjusting mechanism of clearance self-adjusting device in disc brake | |
| JPH07123073B2 (en) | Hydraulic pressing element used for electric furnace electrode |