TWI644755B - Indexing chuck - Google Patents
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- TWI644755B TWI644755B TW106112770A TW106112770A TWI644755B TW I644755 B TWI644755 B TW I644755B TW 106112770 A TW106112770 A TW 106112770A TW 106112770 A TW106112770 A TW 106112770A TW I644755 B TWI644755 B TW I644755B
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Abstract
一種分度夾頭，包含有一夾座、一分度軸、一活塞及一定位軸，分度軸可轉動地設於夾座內，活塞可橫向往復移動地設於夾座內，定位軸可沿著本身軸向移動地設於夾座內，其中，活塞具有一第一斜向導引部，定位軸具有一第二斜向導引部，兩者之間藉由第一、第二斜向導引部卡接在一起，使得定位軸在活塞的移動過程中會被活塞所帶動而相對分度軸靠近或遠離，進而達到定位工件或釋放工件的效果。由上述可知，本發明之分度夾頭不但可以簡化結構來降低成本，在受到離心力作用時可以利用第一、第二斜向導引部之間的配合來增加定位軸對工件的頂持力量。The indexing chuck comprises a clamping seat, an indexing shaft, a piston and a positioning shaft. The indexing shaft is rotatably disposed in the clamping seat, and the piston is reciprocally movable in the clamping seat, and the positioning shaft can be The piston is disposed in the clamping seat along the axial direction thereof, wherein the piston has a first oblique guiding portion, and the positioning shaft has a second oblique guiding portion, the first and the second oblique direction therebetween The guiding portions are snapped together, so that the positioning shaft is driven by the piston during the movement of the piston to approach or move away from the indexing axis, thereby achieving the effect of positioning the workpiece or releasing the workpiece. It can be seen from the above that the indexing chuck of the present invention can not only simplify the structure to reduce the cost, but also can use the cooperation between the first and second oblique guiding portions to increase the holding force of the positioning shaft to the workpiece when subjected to centrifugal force. .
Description
本發明與車床夾頭有關，特別是指一種可有效簡化結構之分度夾頭。The present invention relates to a lathe chuck, and more particularly to an indexing chuck that can effectively simplify the structure.
所謂的分度夾頭主要是利用可伸縮之頂桿將工件頂持於分度軸，在每一道工序完成之後，藉由分度軸來調整工件相對於刀具的角度，在完成角度調整之後即可直接進行下一道工序，並不需要重新校正工件的位置，藉以解決因反覆拆裝工件所產生的精度問題。The so-called indexing chuck mainly uses the telescopic ejector to hold the workpiece on the indexing axis. After each process is completed, the angle of the workpiece relative to the tool is adjusted by the indexing axis. The next process can be carried out directly without recalibrating the position of the workpiece, thereby solving the problem of precision caused by the repeated disassembly and assembly of the workpiece.
就習用技術來說，頂桿是透過齒輪齒條及蝸輪蝸桿之間的相互配合來達到伸長及縮短的效果，但是這些傳動零件會增加結構上的複雜度，連帶導致製造成本的提升。As far as conventional technology is concerned, the ejector achieves the effect of elongation and shortening through the interaction between the rack and the worm and the worm, but these transmission parts increase the structural complexity, which leads to an increase in manufacturing cost.
本發明之主要目的在於提供一種分度夾頭，其能簡化結構來降低製造成本。SUMMARY OF THE INVENTION A primary object of the present invention is to provide an indexing chuck that simplifies the structure to reduce manufacturing costs.
為了達成上述目的，本發明之分度夾頭包含有一夾座、一分度軸，以及一定位組件。該夾座之中央具有一工件容置槽，該夾座在該工件容置槽之兩相對側分別具有一連通該工件容置槽之分度軸槽與一連通該工件容置槽之定位軸槽，此外，該夾座更具有一徑向連通該定位軸槽之活塞槽；該分度軸可轉動地設於該夾座之分度軸槽內，用以帶動該工件轉動來進行角度調整；該定位組件具有一活塞與一定位軸，該活塞可水平移動地設於該夾座之活塞槽內且具有一第一斜向導引部，該定位軸可沿本身軸向移動地設於該夾座之定位軸槽內且具有一第二斜向導引部，該活塞之第一斜向導引部與該定位軸之第二斜向導引部之間相互卡接，使得該定位軸能藉由該活塞在該活塞槽內之移動而朝該分度軸靠近或遠離該分度軸，進而達到定位該工件或釋放該工件的效果。In order to achieve the above object, the indexing chuck of the present invention comprises a clamping seat, an indexing shaft, and a positioning assembly. The center of the holder has a workpiece receiving groove, and the holder has an indexing shaft groove communicating with the workpiece receiving groove and a positioning axis communicating with the workpiece receiving groove on opposite sides of the workpiece receiving groove. a groove, in addition, the clamping seat further has a piston groove radially communicating with the positioning shaft groove; the indexing shaft is rotatably disposed in the indexing shaft groove of the clamping seat for driving the workpiece to rotate for angle adjustment The positioning assembly has a piston and a positioning shaft, the piston is horizontally movably disposed in the piston groove of the clamping seat and has a first oblique guiding portion, the positioning shaft is movably disposed along the axial direction thereof The positioning slot of the clamping seat has a second oblique guiding portion, and the first oblique guiding portion of the piston and the second oblique guiding portion of the positioning shaft are engaged with each other, so that the positioning The shaft can be moved toward or away from the indexing axis by the movement of the piston in the piston groove to achieve the effect of positioning the workpiece or releasing the workpiece.
由上述可知，本發明之分度夾頭利用斜面導引的方式來驅動該定位軸前進或後退，在結構方面省略掉習知技術所使用的各種傳動零件，因而能夠確實達到簡化結構的目的。As apparent from the above, the indexing chuck of the present invention drives the positioning shaft to advance or retreat by means of the inclined surface guiding, and the various transmission components used in the prior art are omitted in terms of structure, so that the purpose of simplifying the structure can be surely achieved.
更佳地，該第一斜向導引部從該活塞之外周面凸伸而出，該第二斜向導引部從該定位軸之外周面凹陷而成。藉此，在該第一、第二斜向導引部相互卡接之後，該定位軸即藉由該活塞之橫向移動來達到前進與後退的效果。More preferably, the first oblique guiding portion protrudes from the outer circumferential surface of the piston, and the second oblique guiding portion is recessed from the outer circumferential surface of the positioning shaft. Thereby, after the first and second oblique guiding portions are engaged with each other, the positioning shaft achieves the effect of advancing and retreating by lateral movement of the piston.
更佳地，該活塞之第一斜向導引部具有一第一端與一第二端，該第一端與該夾座之工件容置槽之間的距離大於該第二端與該夾座之工件容置槽之間的距離，當該定位軸之第二斜向導引部位於該活塞之第一斜向導引部的第一端時，該定位軸位於該夾座之定位軸槽內，此時可以將該工件安裝於該分度軸，當該定位軸之第二斜向導引部位於該活塞之第一斜向導引部的第二端時，該定位軸伸出該夾座之定位軸槽外，此時該定位軸會頂持該工件來完成定位。在完成該工件的定位之後，該定位軸在離心力的作用之下會朝該活塞之第一斜向導引部的第二端的方向移動，使該定位軸可以增加對該工件的頂持力量，進而達到提升加工穩定性的目的。More preferably, the first oblique guiding portion of the piston has a first end and a second end, and the distance between the first end and the workpiece receiving groove of the clamping seat is greater than the second end and the clip a distance between the workpiece receiving grooves of the seat, when the second oblique guiding portion of the positioning shaft is located at the first end of the first oblique guiding portion of the piston, the positioning axis is located at the positioning axis of the clamping seat In the slot, the workpiece can be mounted on the indexing shaft at a time, and when the second oblique guiding portion of the positioning shaft is located at the second end of the first oblique guiding portion of the piston, the positioning shaft extends The clamping seat is positioned outside the positioning slot, and the positioning axis will hold the workpiece to complete the positioning. After the positioning of the workpiece is completed, the positioning shaft moves under the centrifugal force toward the second end of the first oblique guiding portion of the piston, so that the positioning shaft can increase the holding force of the workpiece. In order to achieve the purpose of improving processing stability.
有關本發明所提供之分度夾頭的詳細構造、特點、組裝或使用方式，將於後續的實施方式詳細說明中予以描述。然而，在本發明領域中具有通常知識者應能瞭解，該等詳細說明以及實施本發明所列舉的特定實施例，僅係用於說明本發明，並非用以限制本發明之專利申請範圍。The detailed construction, features, assembly or use of the indexing collet provided by the present invention will be described in the detailed description of the subsequent embodiments. However, it should be understood by those of ordinary skill in the art that the present invention is not limited by the scope of the invention.
請先參閱第1及2圖，本發明之分度夾頭10包含有一夾座20、一分度軸30，以及一定位組件40。Referring to Figures 1 and 2, the indexing collet 10 of the present invention includes a clamping seat 20, an indexing shaft 30, and a positioning assembly 40.
夾座20具有一座體21與一蓋設於座體21之蓋體22，座體21之中央具有一長條形凹槽211，蓋體22具有一開口221，蓋體22之開口221對應連通於座體21之長條形凹槽211，使得兩者共同形成一工件容置槽23。座體21在長條形凹槽211之兩相對側分別具有一連通長條形凹槽211之第一弧槽213與一連通長條形凹槽211之第二弧槽215，蓋體22在開口221之兩相對側分別具有一連通開口221之第三弧槽223與一連通開口221之第四弧槽225，座體21之第一弧槽213對應蓋體22之第三弧槽223，使得兩者之間形成一連通工件容置槽23之分度軸槽24，座體21之第二弧槽215對應蓋體22之第四弧槽225，使得兩者之間形成一連通工件容置槽23之定位軸槽25，分度軸槽24與定位軸槽25之間為同軸對應。此外，座體21更具有一活塞槽26與一端塞27，活塞槽26之延伸方向平行於工件容置槽23之延伸方向，活塞槽26之中央與定位軸槽25之間為徑向連通，端塞27設於活塞槽26之一端開口，用以將活塞槽26給封閉住。The holder 20 has a body 21 and a cover 22 which is disposed on the base 21. The center of the base 21 has an elongated groove 211. The cover 22 has an opening 221, and the opening 221 of the cover 22 is connected. The elongated grooves 211 of the seat body 21 are such that the two together form a workpiece receiving groove 23. The base body 21 has a first arc groove 213 connecting the elongated groove 211 and a second arc groove 215 connecting the elongated groove 211 on opposite sides of the elongated groove 211, and the cover 22 is at The two opposite sides of the opening 221 respectively have a third arc slot 223 connecting the opening 221 and a fourth arc slot 225 of a communication opening 221, and the first arc slot 213 of the seat body 21 corresponds to the third arc slot 223 of the cover 22, An indexing shaft groove 24 is formed between the two, and the second arc groove 215 of the seat body 21 corresponds to the fourth arc groove 225 of the cover body 22, so that a connecting workpiece is formed between the two. The positioning shaft groove 25 of the groove 23 is disposed coaxially with the positioning shaft groove 24 and the positioning shaft groove 25. In addition, the seat body 21 further has a piston groove 26 and an end plug 27. The extending direction of the piston groove 26 is parallel to the extending direction of the workpiece receiving groove 23, and the center of the piston groove 26 is in radial communication with the positioning shaft groove 25. The end plug 27 is provided at one end of the piston groove 26 for closing the piston groove 26.
分度軸30可原地轉動地設於夾座20之分度軸槽24內，用以供工件12固定，使工件12能藉由分度軸30之轉動來進行角度調整。The indexing shaft 30 is rotatably disposed in the indexing shaft groove 24 of the clamping seat 20 for fixing the workpiece 12 so that the workpiece 12 can be angularly adjusted by the rotation of the indexing shaft 30.
定位組件40具有一活塞50及一定位軸60。活塞50設於夾座20之活塞槽26內且能藉由流體壓力的作用在活塞槽26之兩端之間水平地往復移動，定位軸60可沿著本身軸向移動地設於夾座20之定位軸槽25內。再如第3圖所示，活塞50之外周面凸伸出一第一斜向導引部51，定位軸60之外周面凹陷出一第二斜向導引部61，活塞50與定位軸60之間藉由第一、第二斜向導引部51、61相互卡接在一起，其中，活塞50之第一斜向導引部51的長度大於定位軸60之第二斜向導引部61的長度，活塞50之第一斜向導引部51具有一第一端52與一第二端53，第一端52與工件容置槽23之間的距離大於第二端53與工件容置槽23之間的距離。The positioning assembly 40 has a piston 50 and a positioning shaft 60. The piston 50 is disposed in the piston groove 26 of the clamping seat 20 and can horizontally reciprocate between the two ends of the piston groove 26 by the action of fluid pressure. The positioning shaft 60 can be disposed on the clamping seat 20 along the axial movement of itself. Positioned in the shaft groove 25. As shown in FIG. 3, the outer circumferential surface of the piston 50 protrudes from the first oblique guiding portion 51, and the outer circumferential surface of the positioning shaft 60 is recessed with a second oblique guiding portion 61. The piston 50 and the positioning shaft 60 The first and second oblique guiding portions 51, 61 are coupled to each other, wherein the length of the first oblique guiding portion 51 of the piston 50 is greater than the second oblique guiding portion of the positioning shaft 60. The first oblique end portion 51 of the piston 50 has a first end 52 and a second end 53. The distance between the first end 52 and the workpiece receiving groove 23 is greater than the second end 53 and the workpiece capacity. The distance between the slots 23 is set.
由上述可知，如第4圖所示，當活塞50位於活塞槽26之左端時，定位軸60之第二斜向導引部61位於活塞50之第一斜向導引部51的第一端52，使定位軸60不會伸出夾座20之定位軸槽25外，此時的使用者可以將工件12置於夾座20之工件容置槽23內並固定於分度軸30。As can be seen from the above, as shown in FIG. 4, when the piston 50 is located at the left end of the piston groove 26, the second oblique guiding portion 61 of the positioning shaft 60 is located at the first end of the first oblique guiding portion 51 of the piston 50. 52, the positioning shaft 60 is not extended beyond the positioning shaft groove 25 of the clamping seat 20, and the user can place the workpiece 12 in the workpiece receiving groove 23 of the clamping seat 20 and fix it to the indexing shaft 30.
在完成工件12的固定之後，如第5圖所示，活塞50會被流體壓力從活塞槽26之左端推動至活塞槽26之右端，在活塞50的移動過程中藉由第二斜向導引部61推動定位軸60之第一斜向導引部51，使定位軸60逐漸伸出定位軸槽25外，直到定位軸60之第二斜向導引部61位於活塞50之第一斜向導引部51的第二端53時，定位軸60會將工件12給頂持住，此時完成工件12的定位，接下來即可帶動工件12一起相對刀具(圖中未示)旋轉，使刀具對工件12進行切削加工。After the fixing of the workpiece 12 is completed, as shown in Fig. 5, the piston 50 is pushed by the fluid pressure from the left end of the piston groove 26 to the right end of the piston groove 26, and guided by the second oblique direction during the movement of the piston 50. The portion 61 pushes the first oblique guiding portion 51 of the positioning shaft 60 such that the positioning shaft 60 gradually protrudes out of the positioning shaft groove 25 until the second oblique guiding portion 61 of the positioning shaft 60 is located at the first oblique direction of the piston 50. When the second end 53 of the guiding portion 51 is used, the positioning shaft 60 holds the workpiece 12 to the top. At this time, the positioning of the workpiece 12 is completed, and then the workpiece 12 can be driven to rotate relative to the tool (not shown). The tool cuts the workpiece 12.
在帶動工件12一起旋轉的過程中，定位軸60本身所受到的離心力會促使定位軸60朝活塞50之第一斜向導引部51的第二端53的方向移動，所以在離心力的持續作用之下，反而讓定位軸60能夠增加對工件12的頂持力量，使工件12進一步提升穩定度，進而獲得良好的加工精度。During the rotation of the workpiece 12 together, the centrifugal force received by the positioning shaft 60 itself causes the positioning shaft 60 to move toward the second end 53 of the first oblique guiding portion 51 of the piston 50, so that the centrifugal force continues to act. In the meantime, the positioning shaft 60 can increase the holding force on the workpiece 12, so that the workpiece 12 can further improve the stability, thereby obtaining good machining accuracy.
綜上所陳，本發明之分度夾頭10利用斜面導引的方式來驅動定位軸60前進或後退，一方面省略掉習知技術所使用的各種傳動零件，因而達到簡化結構的效果，另一方面在工件12的加工過程中可以藉由離心力的作用來增加穩定性，進而達到提升加工精度的目的。In summary, the indexing chuck 10 of the present invention uses the inclined surface guiding manner to drive the positioning shaft 60 to advance or retreat. On the one hand, the various transmission components used in the prior art are omitted, thereby achieving the effect of simplifying the structure. On the one hand, in the processing of the workpiece 12, the stability can be increased by the action of the centrifugal force, thereby achieving the purpose of improving the machining accuracy.
10分度夾頭 12工件 20夾座 21座體 211長條形凹槽 213第一弧槽 215第二弧槽 22蓋體 221開口 223第三弧槽 225第四弧槽 23工件容置槽 24分度軸槽 25定位軸槽 26活塞槽 27端塞 30分度軸 40定位組件 50活塞 51第一斜向導引部 52第一端 53第二端 60定位軸 61第二斜向導引部10 indexing chuck 12 workpiece 20 clamping seat 21 seat body 211 elongated groove 213 first arc groove 215 second arc groove 22 cover body 221 opening 223 third arc groove 225 fourth arc groove 23 workpiece receiving groove 24 Indexing shaft groove 25 positioning shaft groove 26 piston groove 27 end plug 30 indexing shaft 40 positioning assembly 50 piston 51 first oblique guiding portion 52 first end 53 second end 60 positioning shaft 61 second oblique guiding portion
第1圖為本發明之分度夾頭的外觀立體圖。 第2圖為本發明之分度夾頭的立體分解圖。 第3圖為本發明之分度夾頭所提供之定位組件的立體分解圖。 第4圖為本發明之分度夾頭的局部平面剖視圖，主要顯示工件安裝於分度軸的狀態。 第5圖為本發明之分度夾頭的另一局部平面剖視圖，主要顯示定位軸定位工件的狀態。 第6圖類同於第5圖，主要顯示分度夾頭帶動工件轉動時的狀態。Fig. 1 is a perspective view showing the appearance of the indexing chuck of the present invention. Figure 2 is an exploded perspective view of the indexing chuck of the present invention. Figure 3 is an exploded perspective view of the positioning assembly provided by the indexing collet of the present invention. Figure 4 is a partial plan cross-sectional view of the indexing chuck of the present invention, mainly showing the state in which the workpiece is mounted on the indexing shaft. Fig. 5 is another partial plan sectional view showing the indexing chuck of the present invention, mainly showing the state in which the positioning shaft positions the workpiece. Figure 6 is similar to Figure 5 and mainly shows the state when the indexing chuck drives the workpiece to rotate.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106112770A TWI644755B (en) | 2017-04-17 | 2017-04-17 | Indexing chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106112770A TWI644755B (en) | 2017-04-17 | 2017-04-17 | Indexing chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201838762A TW201838762A (en) | 2018-11-01 |
| TWI644755B true TWI644755B (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106112770A TWI644755B (en) | 2017-04-17 | 2017-04-17 | Indexing chuck |
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| TW (1) | TWI644755B (en) |
Citations (9)
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|---|---|---|---|---|
| TW447345U (en) * | 2000-06-27 | 2001-07-21 | Wu Shuei Lai | Protracting rotary chuck |
| US6394437B1 (en) * | 2000-09-12 | 2002-05-28 | Kabushiki Kaisha Kosmek | Clamping apparatus |
| EP1662152A2 (en) * | 2004-11-30 | 2006-05-31 | Bosch Rexroth Teknik AB | Locking unit for a linear pressure cylinder |
| TWI289085B (en) * | 2004-06-29 | 2007-11-01 | Shang-Shiun Wu | A rotary index chuck |
| WO2008053638A1 (en) * | 2006-10-31 | 2008-05-08 | Daishowa Seiki Co., Ltd. | Member for collet chuck, collet, tightening nut, and collet chuck |
| US7566061B2 (en) * | 2006-03-21 | 2009-07-28 | Smw Autoblok Corporation | Workpiece gripping apparatus |
| US7574953B2 (en) * | 2007-08-06 | 2009-08-18 | Owa Machinery, Ltd. | Rotary clamp cylinder |
| US7762560B2 (en) * | 2005-08-31 | 2010-07-27 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Clamping chuck |
| US9321109B2 (en) * | 2012-06-20 | 2016-04-26 | Smw-Autoblok Spannsysteme Gmbh | Power operated chuck |
-
2017
- 2017-04-17 TW TW106112770A patent/TWI644755B/en active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW447345U (en) * | 2000-06-27 | 2001-07-21 | Wu Shuei Lai | Protracting rotary chuck |
| US6394437B1 (en) * | 2000-09-12 | 2002-05-28 | Kabushiki Kaisha Kosmek | Clamping apparatus |
| TWI289085B (en) * | 2004-06-29 | 2007-11-01 | Shang-Shiun Wu | A rotary index chuck |
| EP1662152A2 (en) * | 2004-11-30 | 2006-05-31 | Bosch Rexroth Teknik AB | Locking unit for a linear pressure cylinder |
| US7762560B2 (en) * | 2005-08-31 | 2010-07-27 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Clamping chuck |
| US7566061B2 (en) * | 2006-03-21 | 2009-07-28 | Smw Autoblok Corporation | Workpiece gripping apparatus |
| WO2008053638A1 (en) * | 2006-10-31 | 2008-05-08 | Daishowa Seiki Co., Ltd. | Member for collet chuck, collet, tightening nut, and collet chuck |
| US7574953B2 (en) * | 2007-08-06 | 2009-08-18 | Owa Machinery, Ltd. | Rotary clamp cylinder |
| US9321109B2 (en) * | 2012-06-20 | 2016-04-26 | Smw-Autoblok Spannsysteme Gmbh | Power operated chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201838762A (en) | 2018-11-01 |
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