CN211438154U - Three-jaw chuck for machining circular ring-shaped forge piece - Google Patents
Three-jaw chuck for machining circular ring-shaped forge piece Download PDFInfo
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- CN211438154U CN211438154U CN201922395026.1U CN201922395026U CN211438154U CN 211438154 U CN211438154 U CN 211438154U CN 201922395026 U CN201922395026 U CN 201922395026U CN 211438154 U CN211438154 U CN 211438154U
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Abstract
The utility model relates to a three-jaw chuck is used in processing of ring shape forging belongs to center lathe's field, and it includes the chuck body, is provided with the clamping structure on the chuck body, still is provided with supplementary fixed knot structure on the chuck body, supplementary fixed knot structure is including contradicting in the clamping mechanism of ring shape forging terminal surface and carrying out the positioning mechanism who fixes clamping mechanism position. The utility model discloses it is tight with the annular forging clamp to have the supplementary fixed knot structure of utilization to reduce annular forging tremble, increase the effect of the centre gripping stability of three-jaw chuck.
Description
Technical Field
The utility model belongs to the technical field of the technique of lathe and specifically relates to a three-jaw chuck is used in processing of ring shape forging.
Background
The existing three-jaw chuck is a machine tool accessory which clamps and positions a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body. The principle of the three-jaw chuck for clamping the workpiece is that a chuck wrench is utilized to rotate any one of three bevel gears on the circumference, so that a plane thread is driven to rotate, three jaws are driven to move together, and the effect of self-centering clamping the workpiece is achieved.
The utility model discloses a chinese utility model patent that current bulletin number of 24 days of 5 months in 2019 authorizes bulletin is CN208895216U discloses a take three-jaw chuck of soft claw, including the chuck body and three set up on the chuck body and can be inwards close to or the outside jack catch of separation each other, the inner of each jack catch all is connected with soft claw, each soft claw is equipped with the draw-in groove towards jack catch one side upper portion that connects, the inner card of each jack catch is in the draw-in groove that corresponds, and inlays on each soft claw and is equipped with magnet, each soft claw passes through magnet and adsorbs on the jack catch inner end that corresponds. The annular forging piece is placed on one side of the chuck body, the clamping jaws are driven to move simultaneously, and the annular forging piece is extruded and fixed after the soft jaws abut against the annular forging piece.
The above prior art solutions have the following drawbacks: treat that annular forging size is too big, the interval between three movable claw can be very big, leads to when the lathe tool carries out the turning to annular forging, because three movable claw is not enough to annular forging's clamping stability, tremble can take place for annular forging to influence annular forging machining precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ring shape is three-jaw chuck for forging of forgings to prior art exists not enoughly. The auxiliary fixing structure is utilized to clamp the annular forging, so that the vibration of the annular forging is reduced, and the clamping stability of the three-jaw chuck is improved.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a three-jaw chuck is used in processing of ring shape forging, includes the chuck body, be provided with clamping structure on the chuck body, still be provided with supplementary fixed knot structure on the chuck body, supplementary fixed knot structure is including contradicting in the clamping mechanism of annular forging terminal surface and carrying out the positioning mechanism that fixes clamping mechanism position.
Through adopting above-mentioned technical scheme, when needs are turned to annular forging, make clamping structure contradict in annular forging interior circle, slip clamping mechanism, when clamping mechanism contradicts in annular forging interior circle, utilize positioning mechanism to make clamping mechanism joint at the current position, then utilize clamping mechanism to press from both sides annular forging tight to reduce annular forging tremble, increase three-jaw chuck's centre gripping stability.
The present invention may be further configured in a preferred embodiment as: the clamping structure comprises a driving mechanism, the driving mechanism comprises a first bevel gear connected to the chuck body in a rotating mode, a second bevel gear is connected to the side wall of the chuck body in a rotating mode, the second bevel gear is meshed with the first bevel gear, the other side of the second bevel gear is fixedly connected with a plane thread, the clamping structure further comprises a movable clamping jaw connected to one side of the chuck body in a sliding mode, the movable clamping jaw is close to a driving rack fixedly connected to one side of the chuck body, the driving rack is connected to the plane thread in an inserting mode, three first sliding grooves are formed in the chuck body, the first sliding grooves are circumferentially arranged by taking the circle center of the chuck body as the axis, and the movable clamping jaw is connected to the first sliding grooves in a sliding mode.
Through adopting above-mentioned technical scheme, rotate first bevel gear and drive second bevel gear and rotate to make the plane screw thread rotate, the movable jack catch is close to or keeps away from to the centre of a circle on the plane screw thread, thereby carries out the centre gripping to annular forging or takes off annular forging from the three-jaw chuck.
The present invention may be further configured in a preferred embodiment as: clamping mechanism includes sliding connection in the second connecting rod on positioning mechanism, the second connecting rod overcoat is equipped with the third connecting rod, the second connecting rod passes through threaded connection with the third connecting rod, the third connecting rod deviates from the circular compact heap of positioning mechanism one end fixedly connected with.
Through adopting above-mentioned technical scheme, rotatory third connecting rod makes the compact heap press from both sides the forging tight, increases the stability of forging on the three-jaw chuck.
The present invention may be further configured in a preferred embodiment as: the chuck body is provided with three second sliding grooves, the second sliding grooves are circumferentially arranged by taking the center of a circle of the chuck body as an axis, the second connecting rod is sleeved with a first sliding block, and the first sliding block is slidably connected into the second sliding grooves along the radius direction of the chuck body.
Through adopting above-mentioned technical scheme, first slider slides and slides in the second spout, and the position of adjustment clamping mechanism adapts to not unidimensional forging.
The present invention may be further configured in a preferred embodiment as: the positioning mechanism comprises a first connecting rod, the first connecting rod is fixedly connected to one end, deviating from the third connecting rod, of the second connecting rod, and the first connecting rod is a rectangular rod.
Through adopting above-mentioned technical scheme, when the head rod was contradicted in first slider, the head rod made the second connecting rod can not drop from the chuck body.
The present invention may be further configured in a preferred embodiment as: the cavity inner wall is fixedly connected with a supporting plate, a third sliding groove is formed in the supporting plate along the length direction, a first connecting rod is connected in the third sliding groove in a sliding mode, first fixing racks are fixedly connected to the inner walls of the two sides of the third sliding groove, the first connecting rod abuts against the first fixing racks, second fixing racks are fixedly connected to the first connecting rod, and the first fixing racks are meshed with the second fixing racks when the first connecting rod abuts against the sliding block.
Through adopting above-mentioned technical scheme, contradict in the slider when the head rod, first fixed rack and the meshing of second fixed rack, clamping mechanism is fixed at the present position this moment.
The present invention may be further configured in a preferred embodiment as: the compact heap deviates from third connecting rod one end fixedly connected with handle, the handle is the T style of calligraphy, the vertical portion of handle one end fixed connection is on the third connecting rod.
By adopting the technical scheme, the third connecting rod can be conveniently rotated by the vertical part of the handle, so that the annular forging is clamped by the clamping mechanism, the first connecting rod can conveniently enter or exit the third sliding groove by the horizontal part of the handle, and the position of the clamping mechanism is fixed at the current position or separated from the current position.
The present invention may be further configured in a preferred embodiment as: the first slider is close to backup pad one side fixedly connected with guide block, deviate from first slider one side fixedly connected with second slider on the guide block, the backup pad is close to first slider one side and has seted up the fourth spout along backup pad length direction, the second slider is along fourth spout length direction sliding connection in the fourth spout.
Through adopting above-mentioned technical scheme, the guide block help the head rod can accurately insert in the third spout.
To sum up, the utility model discloses a following at least one useful technological effect:
1. when the annular forging piece needs to be turned, the clamping structure is abutted to the inner circle of the annular forging piece, the clamping mechanism is slid, when the clamping mechanism is abutted to the inner circle of the annular forging piece, the clamping mechanism is clamped at the current position by the aid of the positioning mechanism, and then the annular forging piece is clamped by the clamping mechanism, so that the vibration of the annular forging piece is reduced, and the clamping stability of the three-jaw chuck is improved;
2. when the first connecting rod abuts against the sliding block, the first fixed rack is meshed with the second fixed rack, and the clamping mechanism is fixed at the current position;
3. the third connecting rod can be conveniently rotated by the vertical part of the handle, so that the annular forging is clamped by the clamping mechanism, and the first connecting rod can conveniently enter or exit the third sliding groove by the horizontal part of the handle, so that the position of the clamping mechanism is fixed at the current position or separated from the current position.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic view of the connection between the partial structure of the present embodiment and the chuck body;
FIG. 3 is a schematic view of the auxiliary fixing structure of the present embodiment;
reference numeral, 100, a chuck body; 200. a clamping structure; 210. a drive mechanism; 211. a first bevel gear; 212. a second bevel gear; 213. a planar thread; 220. a movable jaw; 230. a drive rack; 300. an auxiliary fixing structure; 310. a clamping mechanism; 311. a through hole; 312. a first connecting rod; 313. a second connecting rod; 314. a third connecting rod; 315. a compression block; 316. a handle; 320. a positioning mechanism; 321. a support plate; 322. a third chute; 323. a first fixed rack; 324. a second fixed rack; 325. a guide block; 326. a fourth chute; 327. a second slider; 328. a first slider; 400. a first chute; 500. a second chute; 600. a cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a three-jaw chuck is used in processing of ring shape forging, including fixed connection in the main epaxial chuck body 100 of lathe, be provided with on the chuck body 100 with the tight clamping structure 200 of annular forging clamp, still be provided with supplementary fixed knot structure 300 on the chuck body 100, supplementary fixed knot structure 300 contradicts in the terminal surface of annular forging.
Referring to fig. 1, a positioning mechanism 320 fixedly connected to the chuck body 100 and a clamping mechanism 310 slidably connected to the chuck body 100 are included, and the positioning mechanism 320 is used for fixing the clamping mechanism 310. When the annular forging piece needs to be turned, the clamping structure 200 is abutted to the inner circle of the annular forging piece, the clamping mechanism 310 is slid, when the clamping mechanism 310 is abutted to the inner circle of the annular forging piece, the clamping mechanism 310 is clamped at the current position through the positioning mechanism 320, and then the clamping mechanism 310 is used for clamping the annular forging piece, so that the clamping stability of the three-jaw chuck is improved, and the vibration of the annular forging piece is reduced.
Referring to fig. 1 and 2, a cavity 600 is formed in chuck body 100 to receive clamping structure 200. The clamping structure 200 includes a driving mechanism 210, the driving mechanism 210 includes a first bevel gear 211 rotatably connected to a sidewall of the chuck body 100, a second bevel gear 212 rotatably connected to the chuck body 100, and the second bevel gear 212 is engaged with the first bevel gear 211.
Referring to fig. 1 and 2, the clamping structure 200 further includes a movable jaw 220 slidably connected to the chuck body 100, three first sliding grooves 400 are formed in the chuck body 100, the first sliding grooves 400 are circumferentially arranged with a circle center of the chuck body 100 as an axis, and the movable jaw 220 is slidably connected to the first sliding grooves 400. The other side of the second bevel gear 212 is fixedly connected with a plane thread 213, one side of the movable jaw 220 close to the chuck body 100 is fixedly connected with a driving rack 230, and the driving rack 230 is inserted on the plane thread 213.
Referring to fig. 1 and 2, three second sliding grooves 500 are formed in the chuck body 100, the second sliding grooves 500 are circumferentially arranged with a center of the chuck body 100 as an axis, the clamping mechanism 310 includes a first sliding block 328, and the first sliding block 328 is slidably connected in the second sliding grooves 500 along a radial direction of the chuck body 100. The first slide 328 slides within the second runner 500 to move the clamping mechanism 310 toward or away from the annular forging.
Referring to fig. 3, a circular through hole 311 is formed in the first slider 328, a second connecting rod 313 penetrates through the through hole 311, the second connecting rod 313 is cylindrical, and the second connecting rod 313 is slidably connected to the first slider 328 along the axial direction of the second connecting rod 313. One end of the third connecting rod 314, which penetrates through the through hole 311, is fixedly connected with a first connecting rod 312, one end of the second connecting rod 313, which is far away from the first connecting rod 312, is in threaded connection with the third connecting rod 314, and one end of the third connecting rod 314, which is far away from the second connecting rod 313, is fixedly connected with a circular pressing block 315. When the third connecting rod 314 abuts against the annular forging, the third connecting rod 314 rotates to drive the pressing block 315 to press the annular forging.
Referring to fig. 2 and 3, the first connecting rod 312 is a rectangular parallelepiped, and the third connecting rod 314 is rotated to screw the second connecting rod 313 into the third connecting rod 314, so that the second connecting rod 313 is prevented from falling off the chuck body 100 when the first connecting rod 312 abuts against the first slider 328. When the third connecting rod 314 rotates, the first connecting rod 312 fixes the second connecting rod 313, so that the second connecting rod 313 cannot rotate along with the third connecting rod 314, and the third connecting rod 314 can conveniently rotate on the second connecting rod 313 along the thread.
Referring to fig. 2 and 3, the positioning mechanism 320 includes a supporting plate 321 fixedly connected in the cavity 600, the supporting plate 321 is provided with a third sliding slot 322 along the length direction, and the first connecting rod 312 is slidably connected in the third sliding slot 322.
Referring to fig. 3, first fixed racks 323 are disposed on two side walls of the third chute 322, and second fixed racks 324 are fixedly connected to two sides of the first connecting rod 312 facing the first fixed racks 323. When the first connecting rod 312 abuts against the sliding block 311, the first fixed rack 323 engages with the second fixed rack 324, and the first connecting rod 312 is fixed at the current position, so that the auxiliary fixing structure 300 is fixed at the current position.
Referring to fig. 3, a handle 316 is fixedly connected to one end of the pressing block 315 away from the third connecting rod 314, the handle 316 is T-shaped, and one end of a horizontal portion of the handle 316 is fixedly connected to the third connecting rod 314. The third link 314 is conveniently rotated by pinching the vertical portion of the handle 316, so that the clamping mechanism 310 clamps the annular forging, and the first link 312 is conveniently moved into or out of the third sliding groove 322 by the horizontal portion of the handle 316, so that the clamping mechanism 310 is fixed at the current position or separated from the current position.
Referring to fig. 3, a guide block 325 is fixedly connected to one side of the first slider 328 close to the support plate 321. One side of the guide block 325, which is away from the first slider 328, is fixedly connected with a second slider 327, one side of the supporting plate 321, which is close to the first slider 328, is provided with a fourth sliding groove 326 along the length direction of the supporting plate 321, the second slider 327 is slidably connected in the fourth sliding groove 326 along the length direction of the fourth sliding groove 326, and the guide block 325 can help the first connecting rod 312 to be accurately inserted into the third sliding groove 322.
The implementation principle of the embodiment is as follows: the annular forging piece is placed on a three-jaw chuck, and the first bevel gear 211 is rotated to drive the second bevel gear 212 to rotate, so that the movable jaws 220 are driven to clamp the inner circle of the annular forging piece.
When the third connecting rod 314 is pushed and the third connecting rod 314 abuts against the inner circle of the annular forging, the vertical part of the lifting handle 316 enables the first connecting rod 312 to abut against the sliding block 311, the first fixed rack 323 and the second fixed rack 324 are meshed, and the clamping mechanism is fixed at the current position. The horizontal part of the handle 316 is pinched to rotate the third connecting rod 314, and the third connecting rod 314 moves towards the annular forging piece, and stops rotating when the pressing block 315 abuts against the annular forging piece. The same operation is then performed with two more hold down blocks 315 securing the annular swage.
After the processing is finished, the third connecting rod 314 is rotated to enable the pressing block 315 to be away from the end face of the annular forged piece, the horizontal part of the handle 316 is pinched to push the first connecting rod 312 out of the third sliding groove 322, the first sliding block 328 is slid to enable the third connecting rod 314 to be away from the annular forged piece, the first bevel gear 211 is rotated to enable the movable clamping jaws 220 to be away from the annular forged piece, and the processed annular forged piece is taken down.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a three-jaw chuck is used in processing of ring shape forging, includes chuck body (100), be provided with clamping structure (200), its characterized in that on chuck body (100): the chuck body (100) is further provided with an auxiliary fixing structure (300), and the auxiliary fixing structure (300) comprises a clamping mechanism (310) abutting against the end face of the annular forging and a positioning mechanism (320) for fixing the position of the clamping mechanism (310).
2. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 1, wherein: a cavity (600) is formed in the chuck body (100), the clamping structure (200) is arranged in the cavity (600), the clamping structure (200) comprises a driving mechanism (210), the driving mechanism (210) comprises a first bevel gear (211) rotatably connected to the chuck body (100), a second bevel gear (212) is rotatably connected to the side wall of the chuck body (100), the second bevel gear (212) is meshed with the first bevel gear (211), the other side of the second bevel gear (212) is fixedly connected with a plane thread (213), the clamping structure (200) further comprises a movable clamping jaw (220) slidably connected to one side of the chuck body (100), a driving rack (230) is fixedly connected to one side of the movable clamping jaw (220) close to the chuck body (100), the driving rack (230) is inserted into the plane thread (213), and three first sliding grooves (400) are formed in the chuck body (100), the first sliding groove (400) is circumferentially arranged by taking the circle center of the chuck body (100) as an axis, and the movable clamping jaws (220) are slidably connected in the first sliding groove (400).
3. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 2, wherein: clamping mechanism (310) is including second connecting rod (313) of sliding connection on positioning mechanism (320), second connecting rod (313) overcoat is equipped with third connecting rod (314), second connecting rod (313) pass through threaded connection with third connecting rod (314), third connecting rod (314) deviate from positioning mechanism one end fixedly connected with circular compact heap (315).
4. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 3, wherein: three second spout (500) have been seted up on chuck body (100), second spout (500) use chuck body (100) centre of a circle to set up as axle center circumference, the cover is equipped with first slider (328) on second connecting rod (313), first slider (328) are along chuck body (100) radius direction sliding connection in second spout (500).
5. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 4, wherein: the positioning mechanism (320) comprises a first connecting rod (312), the first connecting rod (312) is fixedly connected to one end, away from the third connecting rod (314), of the second connecting rod (313), and the first connecting rod (312) is a rectangular rod.
6. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 5, wherein: the inner wall of the cavity (600) is fixedly connected with a supporting plate (321), a third sliding groove (322) is formed in the supporting plate (321) along the length direction, a first connecting rod (312) is connected in the third sliding groove (322) in a sliding mode, first fixed racks (323) are fixedly connected to the inner walls of the two sides of the third sliding groove (322), the first connecting rod (312) abuts against the first fixed racks (323), a second fixed rack (324) is fixedly connected to the first connecting rod (312), and the first fixed racks (323) are meshed with the second fixed racks (324) when the first connecting rod (312) abuts against the sliding block.
7. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 6, wherein: one end, deviating from the third connecting rod (314), of the pressing block (315) is fixedly connected with a handle (316), the handle (316) is T-shaped, and one end of the vertical portion of the handle (316) is fixedly connected to the third connecting rod (314).
8. The three-jaw chuck for machining the circular ring-shaped forge piece as claimed in claim 7, wherein: first slider (328) are close to backup pad (321) one side fixedly connected with guide block (325), deviate from first slider (328) one side fixedly connected with second slider (327) on guide block (325), backup pad (321) are close to first slider (328) one side and have been seted up fourth spout (326) along backup pad (321) length direction, second slider (327) are in fourth spout (326) length direction sliding connection along fourth spout (326).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395026.1U CN211438154U (en) | 2019-12-26 | 2019-12-26 | Three-jaw chuck for machining circular ring-shaped forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922395026.1U CN211438154U (en) | 2019-12-26 | 2019-12-26 | Three-jaw chuck for machining circular ring-shaped forge piece |
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| Publication Number | Publication Date |
|---|---|
| CN211438154U true CN211438154U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922395026.1U Active CN211438154U (en) | 2019-12-26 | 2019-12-26 | Three-jaw chuck for machining circular ring-shaped forge piece |
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| CN (1) | CN211438154U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207307A (en) * | 2020-09-27 | 2021-01-12 | 东风汽车零部件(集团)有限公司活塞轴瓦分公司 | Clamping device for turning and milling composite processing of gear shifting hub of gearbox and composite machine tool |
| CN112828327A (en) * | 2021-04-01 | 2021-05-25 | 安徽东风机电科技股份有限公司 | Clamping device for machining inner circle and outer circle of elastomer workpiece in turning mode and clamping process of clamping device |
| CN113351901A (en) * | 2021-06-18 | 2021-09-07 | 济南泰康锻造股份有限公司 | Lathe that machining precision is high |
| CN117696944A (en) * | 2024-02-06 | 2024-03-15 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
-
2019
- 2019-12-26 CN CN201922395026.1U patent/CN211438154U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207307A (en) * | 2020-09-27 | 2021-01-12 | 东风汽车零部件(集团)有限公司活塞轴瓦分公司 | Clamping device for turning and milling composite processing of gear shifting hub of gearbox and composite machine tool |
| CN112828327A (en) * | 2021-04-01 | 2021-05-25 | 安徽东风机电科技股份有限公司 | Clamping device for machining inner circle and outer circle of elastomer workpiece in turning mode and clamping process of clamping device |
| CN113351901A (en) * | 2021-06-18 | 2021-09-07 | 济南泰康锻造股份有限公司 | Lathe that machining precision is high |
| CN113351901B (en) * | 2021-06-18 | 2022-06-14 | 济南泰康锻造股份有限公司 | Lathe that machining precision is high |
| CN117696944A (en) * | 2024-02-06 | 2024-03-15 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
| CN117696944B (en) * | 2024-02-06 | 2024-04-05 | 兰州交通大学 | Clamp with adjustable excircle positioning locking of numerical control machine tool |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250000 Pu Ji Jie Dao Hou Jia Cun, Zhangqiu District, Jinan City, Shandong Province Patentee after: Shandong Zhenhua Forging Co.,Ltd. Address before: 250000 Pu Ji Jie Dao Hou Jia Cun, Zhangqiu District, Jinan City, Shandong Province Patentee before: Shandong Zhenhua Forging Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 250000 Pu Ji Jie Dao Hou Jia Cun, Zhangqiu District, Jinan City, Shandong Province Patentee after: Shandong Zhenhua Forging Co.,Ltd. Address before: 250000 Pu Ji Zhen Hou Jia Cun, Zhangqiu City, Jinan City, Shandong Province Patentee before: Zhangqiu Zhenhua Forging Co.,Ltd. |
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| CP03 | Change of name, title or address |