CN216705990U - Three-jaw chuck for fixing ejector pin - Google Patents
Three-jaw chuck for fixing ejector pin Download PDFInfo
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- CN216705990U CN216705990U CN202123456509.1U CN202123456509U CN216705990U CN 216705990 U CN216705990 U CN 216705990U CN 202123456509 U CN202123456509 U CN 202123456509U CN 216705990 U CN216705990 U CN 216705990U
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- jaw chuck
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Abstract
The application discloses a three-jaw chuck for fixing ejector pins, which is applied to the field of three-jaw chucks and solves the technical problems that a contact surface between a jaw and a cylindrical workpiece is small, the surface hardness of the jaw is high, and the surface of the workpiece is easy to damage; has the technical effect of reducing the damage of the clamping jaw to the surface of the workpiece.
Description
Technical Field
The application relates to the technical field of three-jaw chucks, in particular to a three-jaw chuck for fixing an ejector pin.
Background
The 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.
When the thimble is machined at present, the three-jaw chuck clamps a workpiece through three clamping jaws, so that the workpiece is conveniently machined.
In view of the above-mentioned related technologies, the inventor believes that the defects exist that the contact surface between the jaw and the cylindrical workpiece is small, the surface hardness of the jaw is high, and the surface of the workpiece is easy to be damaged.
SUMMERY OF THE UTILITY MODEL
In order to reduce the damage of clamping jaws to the surface of a workpiece, the application provides a three-jaw chuck for fixing ejector pins.
The application provides a three-jaw chuck for thimble is fixed adopts following technical scheme: the utility model provides a three-jaw chuck for thimble is fixed, includes the chuck, be provided with three jack catch on the chuck, the end of jack catch is provided with the grip block, the side of grip block sets up to inside sunken arc surface, be provided with the rubber layer on the arc surface of grip block.
Through above-mentioned technical scheme, the arc surface cooperation of three grip block is carried out the centre gripping to the thimble, makes the clamping face and the laminating of columniform thimble lateral wall of grip block, and the rubber layer protects the thimble work piece, prevents to cause the damage to the surface of thimble work piece at the in-process of centre gripping.
The application is further configured to: the clamping block is set to be a red copper block and is detachably connected with the clamping jaw.
Through above-mentioned technical scheme, the red copper piece is softer, is difficult for causing the fish tail to the thimble work piece, and the grip block can be dismantled with the jack catch, is convenient for change and maintain the grip block as required.
The application is further configured to: the clamping block is cylindrical, and an arc-shaped groove is formed in the side wall of the clamping block.
Through above-mentioned technical scheme, columniform ductility is better, can not give the very big clamping-force of work piece, protects the work piece.
The application is further configured to: the tail end of the clamping jaw is provided with a placing groove attached to the side wall of the clamping block.
Through above-mentioned technical scheme, the stability of grip block installation is guaranteed in the inner wall laminating of grip block lateral wall and standing groove.
The application is further configured to: the standing groove inside wall is provided with the sliding tray, the side of grip block is connected with the sliding block, threaded connection has positioning bolt on the lateral wall of jack catch, positioning bolt's end extends to in the sliding tray.
Through above-mentioned technical scheme, positioning bolt's end offsets with the sliding block in the sliding tray, makes the sliding block fixed in the fixed slot to make the grip block fixed at the terminal surface of jack catch, guarantee the stability of grip block installation.
The application is further configured to: the cross section shape of sliding tray sets up to T shape, the sliding block corresponds the setting with the sliding tray.
Through above-mentioned technical scheme, the sliding tray carries on spacingly to the sliding block, improves the stability of grip block installation.
The application is further configured to: the inside wall of standing groove inlays and is equipped with positioning magnet, be provided with adsorption magnet on the grip block.
Through above-mentioned technical scheme, install the grip block through magnetism, make the grip block be convenient for carry out the dismouting.
The application is further configured to: the inside wall of standing groove is provided with the location bead, be provided with positioning groove on the lateral wall of grip block.
Through above-mentioned technical scheme, during the location bead inserted positioning groove, prevent that the grip block from rotating in the standing groove, guarantee the stability of grip block installation.
To sum up, the beneficial technical effect of this application does:
1. the arc surfaces of the three clamping blocks are matched to clamp the thimble, so that the clamping surfaces of the clamping blocks are attached to the outer side wall of the cylindrical thimble, and the rubber layer protects the thimble workpiece and prevents the outer surface of the thimble workpiece from being damaged in the clamping process;
2. the clamping block made of red copper is soft, so that the thimble workpiece is not easily scratched;
3. the clamping block lateral wall is laminated with the inner wall of standing groove, guarantees the stability of clamping block installation.
Drawings
Fig. 1 is an overall configuration diagram of the present embodiment 1;
fig. 2 is an exploded view showing the connection of the holding block and the jaw in the present embodiment 1;
fig. 3 is an exploded view showing the connection of the holding block and the claw in the present embodiment 2.
Reference numeral, 1, chuck; 2. a claw; 3. a clamping block; 4. an arc-shaped slot; 5. a placement groove; 6. a slider; 7. positioning the bolt; 8. positioning a magnet; 9. adsorbing a magnet; 10. a positioning groove; 11. and positioning the convex ribs.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Example 1:
referring to fig. 1, for the three-jaw chuck 1 for thimble is fixed that this application discloses, including chuck 1, seted up three sliding tray on the chuck 1, be provided with jack catch 2 respectively in the three sliding tray, grip block 3 is installed to jack catch 2's end, and grip block 3 sets up to columniform red copper piece, and red copper piece is softer, is difficult for causing the fish tail to the thimble work piece.
Referring to fig. 1 and 2, the side wall of each clamping block 3 is provided with an arc-shaped groove 4, and the arc-shaped grooves 4 of the three clamping blocks 3 are matched to clamp the thimble, so that the clamping surface of each clamping block 3 is attached to the cylindrical thimble. The rubber layer is arranged on the arc surface of the clamping block 3, the ejector pin workpiece is protected through the rubber layer, and damage to the outer surface of the ejector pin workpiece in the clamping process is prevented.
Referring to fig. 1 and 2, the end face of the clamping jaw 2 is provided with a placing groove 5, and the side wall of the clamping block 3 is attached to the inner wall of the placing groove 5, so that the stability of installation of the clamping block 3 is guaranteed. The sliding tray has been seted up to standing groove 5 inside wall, and the shape of cross section of sliding tray sets up to the T shape, and the side fixedly connected with sliding block 6 of grip block 3, the shape of cross section of sliding block 6 corresponds the setting with the shape of cross section of sliding tray. Slide block 6 is slipped into the sliding groove, and the sliding groove is used for limiting sliding block 6.
Referring to fig. 1 and 2, a positioning bolt 7 is screwed on the side wall of the jaw 2, the end of the positioning bolt 7 extends into the sliding groove, the end of the positioning bolt 7 abuts against the sliding block 6 in the sliding groove, so that the sliding block 6 is fixed in the fixing groove, and the clamping block 3 is fixed on the end surface of the jaw 2. The clamping block 3 can be detached from the clamping jaw 2, so that the clamping block 3 can be replaced and maintained conveniently as required.
The implementation principle of the embodiment is as follows: the arc-shaped grooves 4 of the three clamping blocks 3 are matched to clamp the thimble, so that the clamping surface of the clamping block 3 is attached to the cylindrical thimble. The ejector pin workpiece is protected through the rubber layer, and the outer surface of the ejector pin workpiece is prevented from being damaged in the clamping process.
Example 2:
referring to fig. 3, the difference from embodiment 1 is that a positioning magnet 8 is embedded in the inner side wall of the placing groove 5, an adsorption magnet 9 is arranged on the clamping block 3, and the positioning magnet 8 and the adsorption magnet 9 have opposite poles and attract each other, so that the clamping block 3 is adsorbed on the inner wall of the placing groove 5. The clamping block 3 is installed through magnetic attraction, so that the clamping block 3 is convenient to disassemble and assemble.
Referring to fig. 3, the inner side wall of the placing groove 5 is fixed with a positioning rib 11, and a positioning groove 10 is formed on the side wall of the clamping block 3, so that when the clamping block 3 is adsorbed on the inner wall of the placing groove 5, the positioning rib 11 can be inserted into the positioning groove 10, thereby preventing the clamping block 3 from rotating in the placing groove 5. When the clamping block 3 clamps the thimble workpiece, the clamping block 3 can be stressed by reverse pressure, and the stability of the installation of the clamping block 3 is ensured.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the 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 chuck (1) for thimble is fixed, includes chuck (1), be provided with three jack catch (2) on chuck (1), its characterized in that, the end of jack catch (2) is provided with grip block (3), the side of grip block (3) sets up to inside sunken arc surface, be provided with the rubber layer on the arc surface of grip block (3).
2. The three-jaw chuck (1) for thimble fixing according to claim 1, wherein the holding block (3) is a red copper block, and the holding block (3) is detachably connected to the jaw (2).
3. The three-jaw chuck (1) for thimble fixing according to claim 1, wherein the clamping block (3) is configured to be cylindrical, and an arc-shaped groove (4) is formed on a side wall of the clamping block (3).
4. The three-jaw chuck (1) for thimble fixing according to claim 2, characterized in that the end of the claw (2) is provided with a placement groove (5) that fits against the side wall of the clamping block (3).
5. The three-jaw chuck (1) for thimble fixing according to claim 4, wherein the inner side wall of the placing groove (5) is provided with a sliding groove, the side surface of the clamping block (3) is connected with a sliding block (6), the side wall of the clamping jaw (2) is connected with a positioning bolt (7) in a threaded manner, and the tail end of the positioning bolt (7) extends into the sliding groove.
6. The three-jaw chuck (1) for thimble fixing according to claim 5, wherein the cross-sectional shape of the sliding groove is set to a T-shape, and the sliding block (6) is set corresponding to the sliding groove.
7. The three-jaw chuck (1) for thimble fixing according to claim 4, wherein the inner side wall of the placing groove (5) is embedded with a positioning magnet (8), and the clamping block (3) is provided with an adsorption magnet (9).
8. The three-jaw chuck (1) for thimble fixing according to claim 5, wherein the inner sidewall of the placing groove (5) is provided with a positioning rib (11), and the sidewall of the clamping block (3) is provided with a positioning groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123456509.1U CN216705990U (en) | 2021-12-31 | 2021-12-31 | Three-jaw chuck for fixing ejector pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123456509.1U CN216705990U (en) | 2021-12-31 | 2021-12-31 | Three-jaw chuck for fixing ejector pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216705990U true CN216705990U (en) | 2022-06-10 |
Family
ID=81888689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123456509.1U Active CN216705990U (en) | 2021-12-31 | 2021-12-31 | Three-jaw chuck for fixing ejector pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216705990U (en) |
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2021
- 2021-12-31 CN CN202123456509.1U patent/CN216705990U/en active Active
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