CN214079323U - Three-jaw oversized-aperture hollow power chuck - Google Patents
Three-jaw oversized-aperture hollow power chuck Download PDFInfo
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- CN214079323U CN214079323U CN202023340627.1U CN202023340627U CN214079323U CN 214079323 U CN214079323 U CN 214079323U CN 202023340627 U CN202023340627 U CN 202023340627U CN 214079323 U CN214079323 U CN 214079323U
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Abstract
The utility model relates to a three-jaw oversized aperture cavity power chuck, including the chuck body with install the jack catch on the chuck body, the jack catch is kept away from on the side of chuck body and is fixed to be provided with the installation piece, the installation piece is located this side and keeps away from the one end of chuck body center department, the side that the installation piece is close to chuck body center department install the grip block for the installation face on the installation face, the grip block is rectangular shape, distance between the both ends is less than the grip block about the installation face distance between the both ends. This application has the grip block after the installation finishes, and is bigger with the article area of contact by the centre gripping, the effect of the work piece of centre gripping that can be more stable.
Description
Technical Field
The application relates to the field of three-jaw chucks, in particular to a three-jaw oversized-aperture hollow power chuck.
Background
Three-jaw chucks, also known as three-jaw self-centering chucks, are commonly used as machine tool accessories to clamp and position a workpiece by radial movement of three jaws uniformly distributed on the chuck body. The clamping size of the clamping jaw of the existing three-jaw chuck is fixed, the clamping jaw can only clamp products with certain thickness, if some thin workpieces need to be processed, the thickness of the workpieces is smaller than the clamping thickness of the clamping jaw, the clamping jaw can only be replaced under the condition, otherwise, the workpieces cannot protrude out of the surface of the clamping jaw, and therefore the clamping jaw is not tight or generates large clamping errors easily, and the clamping jaw is quite inconvenient to use.
For example, chinese patent No. CN210172570U discloses a three-jaw chuck, which comprises: a chuck body; the clamping device comprises a chuck body, three clamping jaws and a clamping part, wherein the chuck body is uniformly distributed along the circumference, the clamping jaws can move along the radial direction of the chuck body, the clamping jaws are provided with a plurality of clamping parts arranged in a ladder way, each clamping part comprises a first clamping surface and a first top surface connected with the first clamping surface, and the first clamping surface has a first clamping thickness; the gasket is arranged on the first top surface of the at least one clamping part of the clamping jaw, the gasket protrudes upwards to the first top surface to form a second top surface, so that the at least one clamping part forms a second clamping surface, the second clamping surface has a second clamping thickness, and the second clamping thickness is smaller than the first clamping thickness. Which can hold thinner products on the original basis.
In view of the above-mentioned related art, the inventors believe that in the actual use of the three-jaw chuck, the contact area between the clamping jaws and the workpiece is small, and the clamping is unstable even for a workpiece having a small thickness.
SUMMERY OF THE UTILITY MODEL
In order to improve that the area of contact of gripper jaw and work piece is little, the problem of the unstable phenomenon of centre gripping appears easily, this application provides a three-jaw oversized aperture cavity power chuck.
The application provides a three-jaw oversized aperture cavity power chuck adopts following technical scheme:
the utility model provides a three-jaw oversized aperture cavity power chuck, includes the chuck body and installs the jack catch on the chuck body, the jack catch is kept away from on the side of chuck body and is fixed to be provided with the installation piece, the installation piece is located the one end that chuck body center department was kept away from to this side, the side that the installation piece is close to chuck body center department for the installation face, install the grip block on the installation face, the grip block is rectangular shape, distance between the both ends is less than the distance between the grip block left and right sides both ends about the installation face.
Through adopting above-mentioned technical scheme, be provided with the installation piece on the jack catch, and fixed mounting has the grip block on the installation piece, and the length of grip block is greater than the length of installation piece. After the clamping block is installed, the contact area of the clamping block and a clamped object is larger, and a workpiece can be clamped more stably.
Optionally, the side surface of the mounting block, which is far away from the chuck body, is an outer end surface, and the clamping block is located on one side, which is close to the chuck body, of the outer end surface.
By adopting the technical scheme, after the clamping block is installed, the clamping block does not protrude out of the installation block, clamping is guaranteed, and meanwhile, machining of a workpiece is not influenced.
Optionally, the mounting surface of the mounting block is provided with a mounting hole, the side surface of the clamping block, which is attached to the mounting surface, is fixedly provided with a clamping rod, and the clamping rod is inserted into and fixed in the mounting hole.
By adopting the technical scheme, the clamping block can be conveniently installed and detached, so that the clamping block can be replaced according to a workpiece needing to be clamped, and the workpiece can be clamped more stably by the clamping block.
Optionally, the outer end face of the mounting block is provided with a counter bore, the counter bore is connected with the mounting hole, a counter bolt penetrates through the counter bore, and the counter bolt is fixedly connected with the clamping rod.
Through adopting above-mentioned technical scheme, through wearing to establish countersunk bolt in the countersunk hole to be in the same place countersunk bolt and supporting rod fixed connection, make the outer terminal surface of installation piece still keep straight, the stable centre gripping work piece of being convenient for.
Optionally, a positioning rib plate is arranged on the side face, attached to the mounting face, of the clamping block, two ends of each positioning rib plate are respectively provided with one positioning rib plate, and when the clamping block moves to the position attached to the mounting face, the mounting block is embedded between the two positioning rib plates.
Through adopting above-mentioned technical scheme, when the grip block was installed at the mounting surface, two location floor all with the mounting block butt. On the one hand, the clamping block can be mounted on the mounting block more quickly, and on the other hand, the structure is more stable after the clamping block is mounted on the mounting block.
Optionally, the side surface of the jaw, which is far away from the chuck body, is detachably provided with a supporting cushion block.
Through adopting above-mentioned technical scheme, when processing the work piece, work piece and supporting pad butt, the work piece is got up by more stable support, makes this chuck body can the thinner work piece of centre gripping thickness.
Optionally, the side face, far away from the chuck body, of the clamping jaw is provided with a cushion block groove, and the supporting cushion block is embedded and fixed in the cushion block groove.
Through adopting above-mentioned technical scheme, the lip block is fixed in the cushion groove, and when making lip block fixed mounting on the chuck body, the structure is more stable.
Optionally, one end of the supporting cushion block, which is located in the cushion block groove, is provided with a thread, and the supporting cushion block is installed in the cushion block groove through the thread.
Through adopting above-mentioned technical scheme, the supporting cushion can be through simple the installing on the chuck body of screw thread, also can be convenient dismantle. The structure is simpler.
In summary, the present application includes at least one of the following beneficial technical effects:
1. after the clamping block is installed, the contact area of the clamping block and a clamped object is larger, and a workpiece can be clamped more stably;
2. simple structure, and convenient installation and disassembly.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is a schematic view of the mounting of the clamping block.
Description of reference numerals: 1. a chuck body; 11. a claw; 2. mounting blocks; 21. mounting holes; 22. a countersunk hole; 23. a countersunk bolt; 3. a clamping block; 31. a clamping rod; 4. positioning a rib plate; 5. a pad groove; 51. and supporting the cushion block.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a three-jaw oversized-aperture hollow power chuck. Referring to fig. 1, the three-jaw oversized-bore hollow power chuck includes a chuck body 1, and three jaws 11 are mounted on the chuck body 1.
Referring to fig. 1 and 2, a mounting block 2 is integrally formed on a side surface of the jaws 11 away from the chuck body 1, and the mounting block 2 is located at one end of the jaws 11 away from the center of the chuck body 1. The side surface of the mounting block 2 close to the center of the chuck body 1 is a mounting surface, and a mounting hole 21 is formed in the mounting surface. The mounting surface of the mounting block 2 is also provided with a clamping block 3, a clamping rod 31 is integrally formed on the side surface of the clamping block 3 attached to the mounting surface, and the clamping rod 31 is arranged in the mounting hole 21 in a penetrating mode. The side face, far away from the chuck body 1, of the mounting block 2 is an outer end face, a counter bore 22 is formed in the outer end face, the counter bore 22 is connected with the mounting hole 21, a counter bolt 23 penetrates through the counter bore 22, and the counter bolt 23 penetrates through and is fixedly mounted on the clamping rod 31.
Referring to fig. 1 and 2, the side of the clamping block 3 remote from the chuck body 1 is located on the side of the outer end surface close to the chuck body 1. The clamping block 3 is in a long strip shape, the left end of the clamping block 3 is located on the left side of the mounting block 2, and the right end of the clamping block 3 is located on the right side of the mounting block 2. The side surface of the clamping block 3 close to the center of the chuck body 1 is matched with the shape of the workpiece. Two positioning rib plates 4 are integrally formed on the side surface of the clamping block 3 away from the center of the chuck body 1, and a gap is formed between the two positioning rib plates 4. When the clamping block 3 is installed on the installation block 2, the side edges of the two positioning rib plates 4 close to each other are abutted to the installation block 2.
Referring to fig. 1 and 2, a circular cushion block groove 5 is formed in a side surface of the jaw 11 away from the chuck body 1, and a thread is formed on an inner side wall of the cushion block groove 5. The supporting cushion block 51 is installed in the cushion block groove 5, the supporting cushion block 51 is in threaded fit with the cushion block groove 5, the thickness of the supporting cushion block 51 is larger than the depth of the cushion block groove 5, and the side face, away from the chuck body 1, of the supporting cushion block 51 is located on one side, close to the chuck body 1, of the outer end face.
The implementation principle of the three-jaw oversized-aperture hollow power chuck in the embodiment of the application is as follows: through the longer grip block 3 of fixed mounting length on installation piece 2, grip block 3 is after the installation, and the article area of contact with by the centre gripping is bigger, can be stable centre gripping work piece. The clamping block 3 can be conveniently installed and detached, so that the clamping block 3 can be replaced according to a workpiece needing to be clamped, and the workpiece can be clamped by the clamping block 3 more stably.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a three-jaw oversized aperture cavity power chuck, includes chuck body (1) and installs jack catch (11) on chuck body (1), fixed installation piece (2) that are provided with on the side of chuck body (1) is kept away from in jack catch (11), and installation piece (2) are located this side and keep away from the one end of chuck body (1) center department, its characterized in that: the side of the mounting block (2) close to the center of the chuck body (1) is a mounting surface, the clamping block (3) is mounted on the mounting surface, the clamping block (3) is in a long strip shape, and the distance between the left end and the right end of the mounting surface is smaller than the distance between the left end and the right end of the clamping block (3).
2. The three-jaw oversized-bore hollow power chuck as claimed in claim 1, wherein: the side face, far away from the chuck body (1), of the mounting block (2) is an outer end face, and the clamping block (3) is located on one side, close to the chuck body (1), of the outer end face.
3. The three-jaw oversized-bore hollow power chuck as claimed in claim 2, wherein: the mounting surface of the mounting block (2) is provided with a mounting hole (21), the side surface of the clamping block (3) attached to the mounting surface is fixedly provided with a clamping rod (31), and the clamping rod (31) penetrates through and is fixed in the mounting hole (21).
4. The three-jaw oversized-bore hollow power chuck as claimed in claim 3, wherein: the outer end face of the mounting block (2) is provided with a counter bore (22), the counter bore (22) is connected with the mounting hole (21), a counter bolt (23) penetrates through the counter bore (22), and the counter bolt (23) is fixedly connected with the clamping rod (31).
5. The three-jaw oversized-bore hollow power chuck as claimed in claim 2, wherein: the clamping block (3) is provided with a positioning rib plate (4) on the side face attached to the mounting face, the positioning rib plate (4) is arranged at each of two ends of the clamping block (3), and when the clamping block (3) moves to the position attached to the mounting face, the mounting block (2) is embedded between the two positioning rib plates (4).
6. The three-jaw oversized-bore hollow power chuck as claimed in claim 1, wherein: the side surface of the clamping jaw (11) far away from the chuck body (1) is detachably provided with a supporting cushion block (51).
7. The three-jaw oversized-bore hollow power chuck as claimed in claim 6, wherein: the chuck is characterized in that the side face, far away from the chuck body (1), of the clamping jaw (11) is provided with a cushion block groove (5), and the supporting cushion block (51) is embedded and fixed in the cushion block groove (5).
8. The three-jaw oversized-bore hollow power chuck as claimed in claim 7, wherein: and one end of the supporting cushion block (51) positioned in the cushion block groove (5) is provided with a thread and is arranged in the cushion block groove (5) through the thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340627.1U CN214079323U (en) | 2020-12-31 | 2020-12-31 | Three-jaw oversized-aperture hollow power chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340627.1U CN214079323U (en) | 2020-12-31 | 2020-12-31 | Three-jaw oversized-aperture hollow power chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214079323U true CN214079323U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023340627.1U Active CN214079323U (en) | 2020-12-31 | 2020-12-31 | Three-jaw oversized-aperture hollow power chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214079323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634779A (en) * | 2021-09-02 | 2021-11-12 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
| CN114800165A (en) * | 2022-03-30 | 2022-07-29 | 武汉德艺技研自动化设备有限公司 | Programmable automatic optical fiber grinding machine |
-
2020
- 2020-12-31 CN CN202023340627.1U patent/CN214079323U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113634779A (en) * | 2021-09-02 | 2021-11-12 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
| CN113634779B (en) * | 2021-09-02 | 2022-05-27 | 淮阴工学院 | Adjustable clamping jaw for axial surface positioning |
| CN114800165A (en) * | 2022-03-30 | 2022-07-29 | 武汉德艺技研自动化设备有限公司 | Programmable automatic optical fiber grinding machine |
| CN114800165B (en) * | 2022-03-30 | 2024-05-24 | 武汉德艺技研自动化设备有限公司 | Programmable automatic optical fiber grinder |
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