CN214349695U - Three-jaw chuck with uniform stress on workpiece - Google Patents
Three-jaw chuck with uniform stress on workpiece Download PDFInfo
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- CN214349695U CN214349695U CN202023184978.8U CN202023184978U CN214349695U CN 214349695 U CN214349695 U CN 214349695U CN 202023184978 U CN202023184978 U CN 202023184978U CN 214349695 U CN214349695 U CN 214349695U
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- jack catch
- threaded rod
- jaw
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- 230000000694 effects Effects 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000001788 irregular Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 235000019589 hardness Nutrition 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a three-jaw chuck with uniform stress on a workpiece, which comprises a chuck body and movable jaws, wherein the movable jaws are arranged inside a sliding groove fixedly arranged at the top of the chuck body in a sliding way, the top of the movable jaws is rotationally connected with a threaded rod, the inner cavity of the movable jaws is fixedly connected with a threaded seat, the three-jaw chuck with uniform stress on the workpiece can drive the movable jaws to clamp the workpiece through a driving piece, a wrench can rotate the rotating seat to drive the threaded rod to rotate, the ejector blocks are extruded to assist the workpiece, the assisting sizes of the three ejector blocks can be automatically adjusted according to the actual shape of the workpiece, the operation is convenient and simple, the problem that the shape of the part to be processed is not regular is solved, when an irregular workpiece is clamped, because the stress point is few, when the workpiece is processed after the clamping is finished, the workpiece is easy to cause processing failure because the stress is uneven, the stability of the processing cannot be ensured.
Description
Technical Field
The utility model relates to a lathe accessory technical field specifically is a three-jaw chuck that work piece atress is even.
Background
The three-jaw chuck is a machine tool accessory for clamping and positioning a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body, and comprises the chuck body, the movable jaws and a jaw driving mechanism, wherein threads are meshed with planar threads on the back surface of a dish-shaped bevel gear below guide parts of the three jaws on the three-jaw chuck, when a small bevel gear is rotated by a wrench through a square hole, the dish-shaped gear rotates, and the planar threads on the back surface simultaneously drive the three jaws to approach to the center or withdraw from the center so as to clamp the workpieces with different diameters, and the three jaws are replaced by three reverse jaws for installing the workpieces with larger diameters.
The existing three-jaw chuck clamps a workpiece in three directions of three movable jaws, but the shape of a part to be machined is often irregular, and when the irregular workpiece is clamped, the workpiece is easily subjected to offset due to uneven stress to cause machining failure and cannot ensure the machining stability because stress is less and stress points are fewer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a three-jaw chuck that work piece atress is even has solved and has waited to process the shape of part often not regular, when carrying out the centre gripping to irregular work piece, because the less reason of stress point adds man-hour after the centre gripping finishes, the work piece very easily because the inhomogeneous skew that takes place of atress leads to the processing failure, can not guarantee the problem of processing stability.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a three-jaw chuck with uniform stress on a workpiece comprises a chuck body and movable jaws, wherein the movable jaws are slidably arranged in a sliding groove fixedly arranged at the top of the chuck body, the top of the movable clamping jaw is rotatably connected with a threaded rod, the inner cavity of the movable clamping jaw is fixedly connected with a threaded seat, the top end of the threaded rod is fixedly connected with a rotating seat, and the inner cavity of the rotating seat is provided with a pulling hole, one end of the threaded rod, which is far away from the rotating seat, sequentially penetrates through the movable clamping jaw and the threaded seat from top to bottom and extends to the inner cavity of the movable clamping jaw, the surface of the threaded rod is in threaded connection with the inner cavity of the threaded seat, the bottom end of the threaded rod is rotationally connected with the inner surface of the movable clamping jaw, the threaded rod is located the fixed surface of activity jack catch inner chamber and is connected with the extrusion piece, one side sliding connection of activity jack catch has the kicking block, has seted up first arc spacing groove and second arc spacing groove on the top extension plate at the top of sliding tray.
Preferably, one side of the ejector block penetrates through one side of the movable clamping jaw and extends to the inner cavity of the movable clamping jaw, and the surface of the movable clamping jaw is provided with a hollow groove matched with the surface of the ejector block.
Preferably, the surface of the ejector block is connected with a power-assisted sleeve in a sliding mode, one side of the power-assisted sleeve is fixedly connected with the inner cavity of the movable clamping jaw, and the surface of the ejector block is abutted against the surface of the extrusion block.
Preferably, one side of the movable jaw penetrates through the top of the chuck body and extends to the inner cavity of the chuck body.
Preferably, the bottom of the movable clamping jaw is provided with tooth-shaped lines meshed with the inner cavity of the sliding groove.
Preferably, the surface of the ejector block is fixedly connected with an elastic pad, the extrusion block is an oval columnar body, the two sides of the chuck body are fixedly connected with mounting frames, and mounting holes are formed in the surface of the chuck body.
Preferably, three groups of movable clamping jaws are arranged and are uniformly distributed on the chuck body; the sliding groove is made of rigid materials.
Advantageous effects
The utility model provides a three-jaw chuck with uniform stress on workpieces. Compared with the prior art, the method has the following beneficial effects:
(1) the three-jaw chuck with uniform stress on the workpiece is characterized in that the movable clamping jaws are arranged inside sliding grooves fixedly arranged at the top of the chuck body in a sliding manner, the top of each movable clamping jaw is rotatably connected with a threaded rod, the inner cavity of each movable clamping jaw is fixedly connected with a threaded seat, the top ends of the threaded rods are fixedly connected with rotating seats, the inner cavities of the rotating seats are provided with pulling holes, one ends of the threaded rods, far away from the rotating seats, sequentially penetrate through the movable clamping jaws and the threaded seats from top to bottom and extend to the inner cavities of the movable clamping jaws, the surfaces of the threaded rods are in threaded connection with the inner cavities of the threaded seats, the bottom ends of the threaded rods are in rotatable connection with the inner surfaces of the movable clamping jaws, the surfaces of the threaded rods, which are positioned in the inner cavities of the movable clamping jaws, one sides of the movable clamping jaws are slidably connected with ejector blocks, and then the movable clamping jaws are driven by driving pieces to rotate the rotating seats through wrenches to drive the threaded rods to rotate, extrude the kicking block and carry out the helping hand to the work piece to can be according to the actual shape of work piece, independently adjust the size of three kicking block helping hand, convenient operation is simple, and the shape of having solved and waiting to process the part often is not regular, when carrying out the centre gripping to irregular work piece, because the less reason of stress point, add man-hour after the centre gripping finishes, the work piece is very easy because the inhomogeneous skew that takes place of atress leads to the processing failure, can not guarantee the problem of the stability of processing.
(2) This even three-jaw chuck of work piece atress, be connected with the cushion through the fixed surface at the kicking block, and the extrusion piece is oval columnar body, the equal fixedly connected with mounting bracket in both sides of the chuck body, and the mounting hole has been seted up on the surface of the chuck body, cooperation through the helping hand cover, can make the kicking block can not lead to the slope because of the atress is uneven, can firmly support the work piece, and can prevent through the cushion when the lower work piece of some hardnesses of centre gripping, because the centre gripping dynamics is too big, lead to the emergence of the condition of work piece deformation.
Drawings
Fig. 1 is a schematic perspective view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial sectional view of the movable jaw structure of the present invention;
FIG. 4 is a top view of the extrusion block structure of the present invention;
fig. 5 is a top view of the sliding slot and the movable jaw of the present invention;
in the figure: the clamping device comprises a clamping disc body 1, a movable clamping jaw 2, a threaded rod 3, a threaded seat 4, a rotating seat 5, an extrusion block 6, a jacking block 7, an empty groove 8, a power assisting sleeve 9, a sliding groove 10, a tooth-shaped line 11, an elastic pad 12, a mounting frame 13, a mounting hole 14, a first arc-shaped limiting groove 15 and a second arc-shaped limiting groove 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a three-jaw chuck with uniform stress on a workpiece comprises a chuck body 1 and movable jaws 2, wherein the movable jaws 2 are arranged inside a sliding groove 10 fixedly arranged at the top of the chuck body 1 in a sliding manner, and a first arc-shaped limiting groove 15 and a second arc-shaped limiting groove 16 are formed in an extending plate at the top of the sliding groove 10; three groups of movable clamping jaws 2 are arranged and are uniformly distributed on the chuck body 1; the sliding groove 10 is made of rigid material; the first arc-shaped limiting groove 15 close to the circle center is used for preventing the movable clamping jaw 2 from falling off due to the fact that the gear rotates to the edge of the chuck when the movable clamping jaw 2 is withdrawn, and the second arc-shaped limiting groove 16 far away from the circle center is used for preventing the rotary gear from being blocked due to overlarge force when the movable clamping jaw 2 is clamped; the bottom of the movable clamping jaw 2 is provided with tooth-shaped grains 11 meshed with the inner cavity of the sliding groove 10, one side of the movable clamping jaw 2 penetrates through the top of the clamping chuck body 1 and extends to the inner cavity of the clamping chuck body 1, the inner cavity of the clamping chuck body 1 is provided with the sliding groove 10 in sliding connection with the movable clamping jaw 2, the top of the movable clamping jaw 2 is rotatably connected with a threaded rod 3, the inner cavity of the movable clamping jaw 2 is fixedly connected with a threaded seat 4, the top end of the threaded rod 3 is fixedly connected with a rotating seat 5, the inner cavity of the rotating seat 5 is provided with a pulling hole, the pulling hole can drive the rotating seat 5 to rotate through a wrench, one end of the threaded rod 3, far away from the rotating seat 5, sequentially penetrates through the movable clamping jaw 2 and the threaded seat 4 from top to bottom and extends to the inner cavity of the movable clamping jaw 2, the surface of the threaded rod 3 is in threaded connection with the inner cavity of the threaded seat 4, the bottom end of the threaded rod 3 is rotatably connected with the inner surface of the movable clamping jaw 2, the surface of the movable clamping jaw 3 is fixedly connected with an extrusion block 6, one side of the movable clamping jaw 2 is slidably connected with an ejector block 7, the surface of the ejector block 7 is fixedly connected with an elastic cushion 12, the ejector block 7 can not incline due to unbalanced stress through the matching of the power-assisted sleeve 9, the workpiece can be firmly supported, the situation that the workpiece deforms due to overlarge clamping force when a plurality of workpieces with lower hardness are clamped can be prevented through the elastic cushion 12, the extrusion block 6 is an elliptic cylindrical body, the two sides of the chuck body 1 are fixedly connected with mounting frames 13, the surface of the chuck body 1 is provided with mounting holes 14, the chuck body 1 can be mounted through the matching of the mounting frames 13 and the mounting holes 14, the surface of the ejector block 7 is slidably connected with the power-assisted sleeve 9, one side of the power-assisted sleeve 9 is fixedly connected with the inner cavity of the movable clamping jaw 2, the surface of the ejector block 7 is mutually abutted with the surface of the extrusion block 6, one side of the ejector block 7 penetrates through one side of the movable clamping jaw 2 and extends to the inner cavity of the movable clamping jaw 2, the dead slot 8 with the surface adaptation of kicking block 7 is seted up on the surface of activity jack catch 2, after rethread driving piece drive activity jack catch 2 is lived the work piece centre gripping, can rotate rotation seat 5 through the spanner, it rotates to drive threaded rod 3, extrude kicking block 7 and carry out the helping hand to the work piece, and can be according to the actual shape of work piece, the size of the three kicking block 7 helping hand of independent adjustment, high durability and convenient operation is simple, the shape of having solved and treating the processing part often is not regular, when carrying out the centre gripping to irregular work piece, because the less reason of stress point, add man-hour after the centre gripping finishes, the work piece leads to the processing failure because the skew takes place for the atress is inhomogeneous very easily, can not guarantee the problem of the stability of processing.
During operation, place the work piece on chuck body 1, slide in sliding tray 10 through driving piece drive movable jack catch 2 and live the work piece centre gripping, can drive through the spanner this moment and rotate seat 5 and rotate, rotate seat 5 and drive threaded rod 3 and rotate in screw thread seat 4, drive extrusion block 6 and rotate, extrusion block 6 extrudees kicking block 7 for kicking block 7 slides along dead slot 8 in helping hand cover 9 slides, carries out the helping hand to the work piece, can freely adjust the volume that stretches out.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A three-jaw chuck with uniform stress on a workpiece comprises a chuck body (1) and movable jaws (2), wherein the movable jaws (2) are arranged in a sliding groove (10) fixedly arranged at the top of the chuck body (1) in a sliding manner; the method is characterized in that: the top of activity jack catch (2) is rotated and is connected with threaded rod (3), the inner chamber fixedly connected with screw thread seat (4) of activity jack catch (2), the top fixedly connected with of threaded rod (3) rotates seat (5) to the inner chamber of rotating seat (5) has seted up and has been pulled the hole, the one end from the top down that rotates seat (5) is kept away from to threaded rod (3) runs through activity jack catch (2) and screw thread seat (4) in proper order and extends to the inner chamber of activity jack catch (2), the surface of threaded rod (3) and the inner chamber threaded connection of screw thread seat (4), the bottom of threaded rod (3) is connected with the internal surface rotation of activity jack catch (2), threaded rod (3) are located the fixed surface of activity jack catch (2) inner chamber and are connected with extrusion piece (6), one side sliding connection of activity jack catch (2) has kicking block (7), first arc spacing groove (15) and second limit arc spacing groove (15) have been seted up on the top extension board of sliding tray (10) A bit slot (16).
2. A three-jaw chuck for uniformly stressing a workpiece according to claim 1, wherein: one side of kicking block (7) runs through one side of activity jack catch (2) and extends to the inner chamber of activity jack catch (2), the dead slot (8) with the surface adaptation of kicking block (7) are seted up on the surface of activity jack catch (2).
3. A three-jaw chuck for uniformly stressing a workpiece according to claim 1, wherein: the surface of the ejector block (7) is connected with a power-assisted sleeve (9) in a sliding mode, one side of the power-assisted sleeve (9) is fixedly connected with the inner cavity of the movable clamping jaw (2), and the surface of the ejector block (7) is abutted to the surface of the extrusion block (6).
4. A three-jaw chuck for uniformly stressing a workpiece according to claim 1, wherein: one side of the movable clamping jaw (2) penetrates through the top of the chuck body (1) and extends to the inner cavity of the chuck body (1).
5. A three-jaw chuck for uniformly stressing a workpiece according to claim 4, wherein: the bottom of the movable clamping jaw (2) is provided with a tooth-shaped line (11) meshed with the inner cavity of the sliding groove (10).
6. A three-jaw chuck for uniformly stressing a workpiece according to claim 1, wherein: the surface fixed connection of kicking block (7) has cushion (12) to extrusion piece (6) are oval columnar body, the equal fixedly connected with mounting bracket (13) in both sides of chuck body (1), and mounting hole (14) have been seted up on the surface of chuck body (1).
7. A three-jaw chuck for uniformly stressing a workpiece according to claim 1, wherein: three groups of movable clamping jaws (2) are arranged and are uniformly distributed on the chuck body (1); the sliding groove (10) is made of rigid materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184978.8U CN214349695U (en) | 2020-12-25 | 2020-12-25 | Three-jaw chuck with uniform stress on workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023184978.8U CN214349695U (en) | 2020-12-25 | 2020-12-25 | Three-jaw chuck with uniform stress on workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214349695U true CN214349695U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023184978.8U Expired - Fee Related CN214349695U (en) | 2020-12-25 | 2020-12-25 | Three-jaw chuck with uniform stress on workpiece |
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| Country | Link |
|---|---|
| CN (1) | CN214349695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639914A (en) * | 2021-10-18 | 2021-11-12 | 徐州康翔精密制造有限公司 | Analysis mechanism for internal stress distribution of molding sand in motor housing preparation |
| CN114749685A (en) * | 2022-05-10 | 2022-07-15 | 安徽涌诚机械有限公司 | Planet rotating frame excircle extrusion system |
| CN115255420A (en) * | 2022-09-19 | 2022-11-01 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
-
2020
- 2020-12-25 CN CN202023184978.8U patent/CN214349695U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113639914A (en) * | 2021-10-18 | 2021-11-12 | 徐州康翔精密制造有限公司 | Analysis mechanism for internal stress distribution of molding sand in motor housing preparation |
| CN114749685A (en) * | 2022-05-10 | 2022-07-15 | 安徽涌诚机械有限公司 | Planet rotating frame excircle extrusion system |
| CN115255420A (en) * | 2022-09-19 | 2022-11-01 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
| CN115255420B (en) * | 2022-09-19 | 2023-01-31 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |