CN202317091U - Machine tool chuck capable of clamping workpieces with small-size external diameter - Google Patents
Machine tool chuck capable of clamping workpieces with small-size external diameter Download PDFInfo
- Publication number
- CN202317091U CN202317091U CN2011204886884U CN201120488688U CN202317091U CN 202317091 U CN202317091 U CN 202317091U CN 2011204886884 U CN2011204886884 U CN 2011204886884U CN 201120488688 U CN201120488688 U CN 201120488688U CN 202317091 U CN202317091 U CN 202317091U
- Authority
- CN
- China
- Prior art keywords
- chuck
- clamping
- external diameter
- cushion blocks
- cushion block
- 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
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Abstract
The utility model discloses a machine tool chuck capable of clamping workpieces with small-size external diameter, which comprises a chuck seat, three clamping claws uniformly distributed on the chuck seat in the peripheral direction of the chuck seat and capable of synchronously moving in the radial direction of the chuck seat and cushion blocks corresponding to the three clamping claws one to one. The shapes and the sizes of the cushion blocks are identical, and three cushion blocks form a set. When the external diameter sizes of workpieces are undersize to exceed a clamping range of the chuck, the cushion blocks can be cushioned between the clamping claws and the workpieces so as to effectively clamp the workpieces, accordingly the clamping range of the chuck is effectively enlarged, clamping claw replacing frequency is reduced, and production efficiency is improved. Simultaneously, the cushion blocks can further prevent workpiece blanks from being directly contacted with the clamping claws, so that abrasion of the clamping claws caused by the workpiece blanks is effectively avoided, service life of the clamping claws is prolonged, and clamping accuracy is ensured.
Description
Technical field
The utility model relates to the parts of lathe, particularly a kind of machine chuck of clamping range broad.
Background technology
Chuck is to be used for the device of clamping work pieces on the lathe, and its utilizes the movable jaw that is distributed on the chuck seat to move radially workpiece is clamped and the location.Chuck generally is made up of chuck body, movable jaw and claw driving mechanism three parts, can be divided into mechanical type chuck and fluid pressure type chuck according to the difference of driving mechanism.
There are following two problems in existing chuck: 1) because the outside dimension of workpiece differs bigger; Regular meeting exceeds the clamping range of chuck, and this just makes claw need often mounting or dismounting to adapt to the workpiece size, need proofread claw after each dismounting; Waste time and energy, be unfavorable for the raising of production efficiency; 2) because claw clamping workpiece blank continually for a long time causes contact surface abrasion easily, not only reduced its service life, and caused the clamping precision to reduce.
To above-mentioned deficiency, need existing chuck is improved, its clamping range is enlarged, can be used for the clamping of small size external diameter workpiece, simultaneously, also make its claw not easy to wear, prolong the service life of claw and guarantee the clamping precision.
The utility model content
In view of this, but the utility model provides a kind of machine chuck of clamping small size external diameter workpiece, is limited in scope and claw technical problem easy to wear to solve existing chuck clamping.
But the machine chuck of the clamping small size external diameter workpiece of the utility model; Comprising chuck seat and circumferentially be distributed in along chuck seat also can be along radially synchronization-moving three claw of chuck seat on the chuck seat; Also comprise and three claws cushion block one to one; The shape and size of three cushion blocks are identical, and the cushion block pad is located between claw and the workpiece during clamping small size external diameter workpiece.
Further, said cushion block is for can radially outward being placed in the U-shaped cushion block on the claw along chuck seat;
Further, the bottom outside of said U-shaped cushion block is an arc;
Further, annular knurl on the arcwall face of the bottom outside of said U-shaped cushion block.
The beneficial effect of the utility model: but the machine chuck of the clamping small size external diameter workpiece of the utility model comprise chuck seat and circumferentially be distributed on the chuck seat and can be along radially synchronization-moving three claws of chuck seat along chuck seat, also comprise and three claws cushion block one to one; The shape and size of cushion block are identical, and three is a pair, and the workpiece outside dimension is too small when exceeding the clamping range of chuck; Can pass through the cushion block pad between claw and workpiece, thereby workpiece is formed effective clamping, effectively enlarge the clamping range of chuck; Reduced the frequency of changing claw; Improved production efficiency, simultaneously, cushion block can prevent that also workpiece blank from directly contacting with claw; Prevent that effectively workpiece blank from causing wearing and tearing to claw, prolong the service life of claw and guaranteed the clamping precision.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below will combine accompanying drawing that the utility model is elaborated, as shown in the figure: but the machine chuck of the clamping small size external diameter workpiece of present embodiment comprises chuck seat 1 and along circumferentially being distributed on the chuck seat 1 and can be along radially synchronization-moving three claws 2 of chuck seat 1; This chuck adopts existing chuck get final product, and like oild chuck or the mechanical type chuck on the employing lathe, this chuck also comprises and three claws 2 cushion block 3 one to one; The geomery of three cushion blocks is consistent; With three cushion blocks is a pair, and workpiece 4 outside dimensions are less when exceeding the clamping range of chuck, and cushion block 3 pads are located between claw 2 and the workpiece 4; Avoid changing claw; Simultaneously, cushion block also can form protective effect to claw, makes claw avoid wearing and tearing.
As the further improvement of technique scheme, said cushion block 3 be for can radially outward being placed in the U-shaped cushion block on the claw 2 along chuck seat 1, and when on claw, setting up cushion block, the U-shaped cushion block is located easily and is convenient to operation.
As the further improvement of technique scheme, the bottom outside of said cushion block 3 is an arc, and is big with the workpiece contact area with workpiece external diameter shape basically identical, makes more reliably and not easy damaged surface of the work of clamping.
As the further improvement of technique scheme, the arcwall face 3a of the bottom outside of said cushion block 3 goes up annular knurl, and the coefficient of friction of increase and workpiece 4 contact-making surfaces makes clamping more reliable.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (4)
1. but the machine chuck of a clamping small size external diameter workpiece; Comprise chuck seat (1) and along being distributed in circumferentially that chuck seat (1) is gone up and can be along radially synchronization-moving three claws of chuck seat (1) (2); It is characterized in that: also comprise and the corresponding one by one cushion blocks of three claws (2) (3); The shape and size of three cushion blocks (3) are identical, and cushion block (3) pad is located between claw (2) and the workpiece during clamping small size external diameter workpiece.
2. but the machine chuck of clamping small size external diameter workpiece according to claim 1 is characterized in that: said cushion block (3) is for can radially outward being placed in the U-shaped cushion block on the claw (2) along chuck seat (1).
3. but the machine chuck of clamping small size external diameter workpiece according to claim 1 and 2 is characterized in that: the bottom outside of said cushion block (3) is an arc.
4. but the machine chuck of clamping small size external diameter workpiece according to claim 3 is characterized in that: the arcwall face (3a) of the bottom outside of said cushion block (3) is gone up annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204886884U CN202317091U (en) | 2011-11-30 | 2011-11-30 | Machine tool chuck capable of clamping workpieces with small-size external diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204886884U CN202317091U (en) | 2011-11-30 | 2011-11-30 | Machine tool chuck capable of clamping workpieces with small-size external diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202317091U true CN202317091U (en) | 2012-07-11 |
Family
ID=46429088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204886884U Expired - Fee Related CN202317091U (en) | 2011-11-30 | 2011-11-30 | Machine tool chuck capable of clamping workpieces with small-size external diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202317091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931781A (en) * | 2012-11-08 | 2013-02-13 | 青岛云路新能源科技有限公司 | Clamping device for producing amorphous motor stator core |
-
2011
- 2011-11-30 CN CN2011204886884U patent/CN202317091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931781A (en) * | 2012-11-08 | 2013-02-13 | 青岛云路新能源科技有限公司 | Clamping device for producing amorphous motor stator core |
| CN102931781B (en) * | 2012-11-08 | 2014-12-10 | 青岛云路新能源科技有限公司 | Clamping device for producing amorphous motor stator core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |