CN209886714U - Chuck - Google Patents
Chuck Download PDFInfo
- Publication number
- CN209886714U CN209886714U CN201920701786.8U CN201920701786U CN209886714U CN 209886714 U CN209886714 U CN 209886714U CN 201920701786 U CN201920701786 U CN 201920701786U CN 209886714 U CN209886714 U CN 209886714U
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- CN
- China
- Prior art keywords
- clamping
- chuck
- jaws
- chuck body
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000078 claw Anatomy 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
A chuck belongs to the technical field of chucks. The utility model comprises a chuck body and a plurality of claws arranged on the chuck body along the axial direction of the chuck body, wherein a clamping block is arranged at one end of at least one claw towards the middle part of the chuck body, and a clamping column is arranged at one end of at least two claws towards the middle part of the chuck body; the clamping block is provided with an arc surface attached to the surface of the workpiece. The utility model discloses can compromise clamping action and dismouting efficiency to the work piece simultaneously.
Description
Technical Field
The utility model relates to a chuck technical field especially relates to a chuck.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, movable jaws and a jaw driving mechanism 3. The diameter of the chuck body is 65 mm at least and can reach 1500 mm at most, and a through hole is formed in the center of the chuck body so as to facilitate the workpiece or bar stock to pass through; the back part is provided with a cylindrical or short conical structure and is connected with the end part of a main shaft of the machine tool directly or through a flange plate. Chucks are commonly used in lathes, cylindrical grinders and internal grinders, and may also be used in conjunction with various indexing devices for milling and drilling machines.
The existing chuck is generally provided with a part for improving friction force at the end part of a clamping jaw in order to improve the clamping effect on a workpiece, but the clamping and dismounting efficiency of the workpiece is lowered after the part is arranged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that above-mentioned prior art exists, provide a chuck, it can compromise clamping action and dismouting efficiency to the work piece simultaneously.
The utility model aims at realizing through the following technical scheme:
a chuck comprises a chuck body and a plurality of clamping jaws arranged on the chuck body along the axial direction of the chuck body, wherein a clamping block is arranged at one end of at least one clamping jaw, which faces the middle part of the chuck body, and a clamping column is arranged at one end of at least two clamping jaws, which faces the middle part of the chuck body; the clamping block is provided with an arc surface attached to the surface of the workpiece.
The utility model realizes the clamping of the workpiece through the matching of at least one clamping block with an arc surface and a plurality of clamping columns, on one hand, under the action of multi-point clamping force of the clamping block and the clamping columns, and because the clamping block is attached to the workpiece, the clamping stability is high and the workpiece is not easy to slip; on the other hand, the contact area of the clamping column to the workpiece is small, so that the clamping column is more smooth and efficient in disassembly.
As the utility model discloses it is preferred, it is used for connecting to press from both sides to be equipped with on the tight piece the threaded rod of jack catch, the threaded rod is connected the one end of jack catch is equipped with positioning nut. The structure is more convenient for the disassembly, assembly and maintenance of the clamping block.
Preferably, the clamping column comprises a connecting part for connecting the clamping jaws and a contact part for supporting the workpiece. The clamping column is simple and practical in structure and convenient to disassemble, assemble and maintain.
As the utility model discloses it is preferred, be equipped with the external screw thread on the connecting portion, be equipped with the screw hole in the jack catch. The structure is high in connection stability and convenient to disassemble and assemble, and the length of the connecting part extending into the threaded hole can be adjusted.
As the utility model discloses it is preferred, connecting portion are hugged closely the one end of jack catch is equipped with adjusts positioning nut. The structure is convenient for the positioning after the length of the connecting part extending into the threaded hole is adjusted.
Preferably, the diameter of the contact part is larger than that of the connecting part. The structure improves the clamping effect of the interference part on the workpiece.
Preferably, the end face of the abutting part is provided with an adjusting groove. The adjustment groove is convenient for use instrument on the one hand and adjusts or dismouting clamping column, and on the other hand has also improved the frictional force between conflict portion and the work piece.
Preferably, the clamping jaws have 3 clamping jaws, and the included angle between the clamping jaws is 120 degrees. The structure is a simple optimal mode, stable clamping is realized through three points, and the structure is convenient to disassemble and assemble.
The utility model has the advantages that: simple structure can compromise the tight effect of clamp to the work piece simultaneously to and the efficiency when dismouting work piece.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1-a chuck body; 2-clamping jaws; 3-a clamping block; 4-clamping the column; 31-a threaded rod; 32-a positioning nut; 41-a connecting part; 42-a collision part; 43-positioning the adjusting nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
A chuck comprises a chuck body 1 and a plurality of clamping jaws 2 arranged on the chuck body 1 along the axial direction of the chuck body 1, wherein a clamping block 3 is arranged at one end of at least one clamping jaw 2 facing the middle part of the chuck body 1, and a clamping column 4 is arranged at one end of at least two clamping jaws 2 facing the middle part of the chuck body 1; the clamping block 3 is provided with a circular arc surface attached to the surface of a workpiece.
The utility model realizes the clamping of the workpiece through the matching of at least one clamping block with an arc surface and a plurality of clamping columns, on one hand, under the action of multi-point clamping force of the clamping block and the clamping columns, and because the clamping block is attached to the workpiece, the clamping stability is high and the workpiece is not easy to slip; on the other hand, the contact area of the clamping column to the workpiece is small, so that the clamping column is more smooth and efficient in disassembly.
Example 2
On the basis of embodiment 1, a threaded rod 31 for connecting the clamping jaw 2 is arranged on the clamping block 3, and a positioning nut 32 is arranged at one end of the threaded rod 31 connected with the clamping jaw 2. The structure is more convenient for the disassembly, assembly and maintenance of the clamping block.
In addition, the clamping column 4 comprises a connecting part 41 for connecting the jaws 2, and an interference part 42 for abutting against a workpiece. The clamping column is simple and practical in structure and convenient to disassemble, assemble and maintain. The connecting portion 41 is provided with an external thread, and a threaded hole is formed in the clamping jaw 2. The structure is high in connection stability and convenient to disassemble and assemble, and the length of the connecting part extending into the threaded hole can be adjusted. One end of the connecting part 41 tightly attached to the clamping jaw 2 is provided with an adjusting and positioning nut 43. The structure is convenient for the positioning after the length of the connecting part extending into the threaded hole is adjusted. The diameter of the interference part 42 is larger than that of the connection part 41. The structure improves the clamping effect of the interference part on the workpiece. The end face of the abutting part 42 is provided with an adjusting groove. The adjustment groove is convenient for use instrument on the one hand and adjusts or dismouting clamping column, and on the other hand has also improved the frictional force between conflict portion and the work piece.
As a simple preferred way, the jaws 2 have 3 blocks, and the included angle between adjacent jaws 2 is 120 °. The structure realizes stable clamping through three points, and is convenient to disassemble and assemble.
The above description is only the specific embodiment of the preferred embodiment of the present invention, and this specific embodiment is based on the present invention, and the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A chuck comprises a chuck body and a plurality of clamping jaws arranged on the chuck body along the axial direction of the chuck body, and is characterized in that one end of at least one clamping jaw, facing the middle part of the chuck body, is provided with a clamping block, and one end of at least two clamping jaws, facing the middle part of the chuck body, is provided with a clamping column; the clamping block is provided with an arc surface attached to the surface of the workpiece.
2. The chuck according to claim 1, wherein the clamping block is provided with a threaded rod for connecting the jaws, and one end of the threaded rod connected with the jaws is provided with a positioning nut.
3. The chuck as set forth in claim 1, wherein said clamping columns include connecting portions for connecting said jaws, and interference portions for abutting against the workpiece.
4. The chuck as set forth in claim 3, wherein the connecting portion is provided with an external thread, and the jaws are provided with a threaded hole.
5. The chuck as in claim 4, wherein said connecting portion has an adjusting and positioning nut at an end thereof abutting said jaws.
6. The chuck according to claim 3, wherein the interference portion has a diameter larger than a diameter of the connecting portion.
7. The chuck according to claim 3, wherein the interference portion has an adjustment groove on an end surface thereof.
8. The chuck as set forth in claim 1, wherein said jaws have 3 pieces, and the angle between adjacent jaws is 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920701786.8U CN209886714U (en) | 2019-05-16 | 2019-05-16 | Chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920701786.8U CN209886714U (en) | 2019-05-16 | 2019-05-16 | Chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209886714U true CN209886714U (en) | 2020-01-03 |
Family
ID=69020764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920701786.8U Expired - Fee Related CN209886714U (en) | 2019-05-16 | 2019-05-16 | Chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209886714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203341A (en) * | 2021-04-29 | 2021-08-03 | 安徽江淮汽车集团股份有限公司 | Leaf spring measuring device and detection device |
-
2019
- 2019-05-16 CN CN201920701786.8U patent/CN209886714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203341A (en) * | 2021-04-29 | 2021-08-03 | 安徽江淮汽车集团股份有限公司 | Leaf spring measuring device and detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 |