CN203917997U - A kind of clamping device with pulldown function - Google Patents
A kind of clamping device with pulldown function Download PDFInfo
- Publication number
- CN203917997U CN203917997U CN201420392566.9U CN201420392566U CN203917997U CN 203917997 U CN203917997 U CN 203917997U CN 201420392566 U CN201420392566 U CN 201420392566U CN 203917997 U CN203917997 U CN 203917997U
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- claw
- drop
- clamps
- upstanding edge
- workpiece
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Abstract
The utility model relates to a kind of clamping device with pulldown function, it is provided with chuck body, slide block, claw body, 120 °, three slide block intervals are arranged on chuck body, can move radially along chuck body, described claw body is L-type structure, base is wherein fixed on corresponding slide block by trip bolt, and upstanding edge top connects one by bearing pin and clamps drop-down claw; The drop-down claw of described clamping is rotatably fastened on claw body upstanding edge inner side, clamps between drop-down claw and claw body upstanding edge a spring is housed; The drop-down claw of described clamping middle part is provided with the pointed tooth of protrusion towards the surface of workpiece.The utility model clamps drop-down claw when bearing pin rotates, has all the time a power that pulls down the part of starting building, and workpiece is clamped drop-down.It is simple and reasonable for structure, easy for operation, clamps reliable and stablely, has pulldown function.Be particularly suitable for the gradient workpiece of clamping band.
Description
Technical field
The utility model relates to mechanical clamp field, specifically a kind of clamping device with pulldown function.
Background technology
In the time using the gradient workpiece of the scroll chuck clamping band of standard, workpiece can produce movement, makes workpiece leave locating surface, affects positioning precision.For addressing this problem, existing method is to use pull-down chuck, but the chuck body structure of pull-down chuck is different from conventional standard card body structure, is chuck special, this chuck special manufacturing structure complexity, and cost is high.Up to now, also do not have can clamping band gradient workpiece, there is the bibliographical information of the clamping device of pulldown function.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable for structure, easy for operation, and workpiece that can clamping band gradient clamps reliable and stablely, has the clamping device of pulldown function.
The technical scheme in the invention for solving the above technical problem is: a kind of clamping device with pulldown function, it is provided with chuck body, slide block, claw body, 120 °, three slide block intervals are arranged on chuck body, can move radially along chuck body, it is characterized in that: described claw body is L-type structure, base is wherein fixed on corresponding slide block by trip bolt, and upstanding edge top connects one by bearing pin and clamps drop-down claw; The drop-down claw of described clamping is rotatably fastened on claw body upstanding edge inner side, clamps between drop-down claw and claw body upstanding edge a spring is housed; The drop-down claw of described clamping middle part is provided with the pointed tooth of protrusion towards the surface of workpiece.
Described claw body upstanding edge inner side is provided with a blind hole for mounting spring, and top has groove and pin shaft hole; The top of the drop-down claw of described clamping is provided with a horizontal pin-and-hole, clamps drop-down claw and pass by bearing pin the horizontal pin-and-hole at top downwards, is arranged in the top groove of claw body upstanding edge.
The lower end of the drop-down claw of described clamping is outwards provided with a boss.
On the claw body of the utility model L-type structure, connect one by bearing pin and clamp drop-down claw, clamp between drop-down claw and claw body upstanding edge a spring is housed; Clamp drop-down claw middle part is provided with protrusion pointed tooth towards the surface of workpiece.In clamping process, slide block drives claw body to move inward, and the pointed tooth clamping on drop-down claw touches the workpiece being held; Claw body continues to move inward, and spring is compacted, clamps the pointed tooth protruding at drop-down claw middle part and is embedded into and in workpiece, catches workpiece.Clamp drop-down claw when bearing pin rotates, all the time there is a power that pulls down the part of starting building, workpiece is pulled down to locating surface, touch claw body upstanding edge until clamp the outside boss in the lower end of drop-down claw, clamp drop-down claw stop motion, workpiece is clamped drop-down.Against existing technologies, the utility model is simple and reasonable for structure, easy for operation, and workpiece that can clamping band gradient clamps reliable and stablely, has pulldown function.Be particularly suitable for the gradient workpiece of clamping band.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model will be further described.
Fig. 1 is not structural representation when clamping work pieces of the utility model.
Fig. 2 is the structural representation after the utility model clamping work pieces.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is that K in Fig. 1 is to view.
Fig. 5 is the structural representation that clamps drop-down claw in the utility model.
Figure
1in label be: 1. chuck body, 2. slide block, 3. trip bolt, 4. claw body, 5. spring, 6. bearing pin, 7. clamp drop-down claw.71. pointed tooths, 72. boss.
Detailed description of the invention
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, can find out, a kind of clamping device with pulldown function, it is provided with chuck body 1, slide block 2, claw body 4 etc.Described chuck body 1 and slide block 2 are parts of standard chuck.120 °, three slide block 2 intervals are arranged on chuck body 1, can move radially along chuck body 1.
Described claw body 4 is L-type structure, and base is wherein fixed on corresponding slide block 2 by trip bolt 3, and upstanding edge top connects the drop-down claw 7 of a clamping by bearing pin 6; The drop-down claw 7 of described clamping is rotatably fastened on claw body 4 upstanding edge inner sides, clamps between drop-down claw and claw body upstanding edge a spring 5 is housed; The drop-down claw of described clamping middle part is provided with the pointed tooth 71 of protrusion towards the surface of workpiece.
Further, described claw body 4 upstanding edge inner sides are provided with a blind hole for mounting spring 5, and top has groove and pin shaft hole; The top of the drop-down claw 7 of described clamping is provided with a horizontal pin-and-hole, clamps the drop-down claw horizontal pin-and-hole through top by bearing pin 6 downwards, is arranged in the top groove of claw body 4 upstanding edges.The lower end of the drop-down claw 7 of described clamping is outwards provided with a boss 72.One end of described spring 5 is arranged in the blind hole of claw body 4 upstanding edges, and exposes claw body, and the other end withstands on and clamps on drop-down claw 7.In the time of clamping work pieces not, spring 5 pushes up from claw body clamping the outside boss 72 in drop-down claw lower end; In the time of clamping work pieces, spring 5 is compressed, clamps the outside boss 72 in drop-down claw lower end and abuts against on claw body upstanding edge.
The utility model is in clamping process, and slide block 2 drives claw body 4 to move inward, and the pointed tooth 71 clamping on drop-down claw 7 touches the workpiece being held; Claw body 4 continues to move inward, and spring 5 is compacted, clamps the pointed tooth 71 protruding at drop-down claw 7 middle parts and is embedded into and in workpiece, catches workpiece.Catch the strength of workpiece, be directly proportional to the elastic force of spring 5.Clamp drop-down claw when bearing pin 6 rotates, all the time there is a power that pulls down the part of starting building, workpiece is pulled down to locating surface, touch claw body upstanding edge until clamp the outside boss in the lower end of drop-down claw, clamp drop-down claw stop motion, workpiece is clamped drop-down.
The utility model is simple and reasonable for structure, easy for operation, and workpiece that can clamping band gradient clamps reliable and stablely, has pulldown function.Be particularly suitable for the gradient workpiece of clamping band.
Claims (3)
1. one kind has the clamping device of pulldown function, it is provided with chuck body, slide block, claw body, 120 °, three slide block intervals are arranged on chuck body, can move radially along chuck body, it is characterized in that: described claw body is L-type structure, base is wherein fixed on corresponding slide block by trip bolt, and upstanding edge top connects one by bearing pin and clamps drop-down claw; The drop-down claw of described clamping is rotatably fastened on claw body upstanding edge inner side, clamps between drop-down claw and claw body upstanding edge a spring is housed; The drop-down claw of described clamping middle part is provided with the pointed tooth of protrusion towards the surface of workpiece.
2. the clamping device with pulldown function according to claim 1, is characterized in that: described claw body upstanding edge inner side is provided with a blind hole for mounting spring, and top has groove and pin shaft hole; The top of the drop-down claw of described clamping is provided with a horizontal pin-and-hole, clamps drop-down claw and pass by bearing pin the horizontal pin-and-hole at top downwards, is arranged in the top groove of claw body upstanding edge.
3. the clamping device with pulldown function according to claim 1, is characterized in that: the lower end of the drop-down claw of described clamping is outwards provided with a boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392566.9U CN203917997U (en) | 2014-07-16 | 2014-07-16 | A kind of clamping device with pulldown function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392566.9U CN203917997U (en) | 2014-07-16 | 2014-07-16 | A kind of clamping device with pulldown function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917997U true CN203917997U (en) | 2014-11-05 |
Family
ID=51813878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420392566.9U Expired - Fee Related CN203917997U (en) | 2014-07-16 | 2014-07-16 | A kind of clamping device with pulldown function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203917997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788338A (en) * | 2022-10-31 | 2023-03-14 | 华中科技大学 | Tube drawing device for hydraulic tube drawing bench |
-
2014
- 2014-07-16 CN CN201420392566.9U patent/CN203917997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115788338A (en) * | 2022-10-31 | 2023-03-14 | 华中科技大学 | Tube drawing device for hydraulic tube drawing bench |
| CN115788338B (en) * | 2022-10-31 | 2023-09-29 | 华中科技大学 | Tube drawing device for hydraulic tube drawing machine |
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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: 20141105 Termination date: 20160716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |