CN104096876A - Clamping device with pull-down function - Google Patents
Clamping device with pull-down function Download PDFInfo
- Publication number
- CN104096876A CN104096876A CN201410338275.6A CN201410338275A CN104096876A CN 104096876 A CN104096876 A CN 104096876A CN 201410338275 A CN201410338275 A CN 201410338275A CN 104096876 A CN104096876 A CN 104096876A
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- CN
- China
- Prior art keywords
- clamping
- claw
- drop
- workpiece
- jaw
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/20—Collet chucks
- B23B2231/2072—Jaws of collets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a clamping device with a pull-down function. The clamping device comprises a clamping disc, three sliders, and jaw bodies; the sliders are mounted on the clamping disc at 120-degree intervals and can move radially along the clamping disc; each jaw body is in an L-shaped structure; the bottom of each jaw body is fixed on the corresponding slider through fastening screws; a clamping pull-down jaw is connected to the top end of the vertical side of each jaw body through a pin; each clamping pull-down jaw is rotatably clamped to the inner side of the vertical side of the corresponding jaw body; a spring is mounted between each clamping pull-down jaw and the vertical side of the corresponding jaw body; the surface, facing a workpiece, of the middle of each clamping pull-down jaw is provided with raised sharp teeth. When rotating around the corresponding pin, each clamping pull-down jaw constantly provides a force of pulling down the workpiece, and the workpiece is clamped and pulled down. The clamping device is simple and reasonable in structure, convenient to operate and use and capable of clamping the workpiece stably and reliably and has the pull-down function. The clamping device is especially suitable for clamping tapered workpieces.
Description
Technical field
The present invention relates to mechanical clamp field, specifically a kind of clamping device with pulldown function.
Background technology
When the gradient workpiece of the scroll chuck clamping band that uses 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, and this chuck special manufacturing structure is complicated, 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 by this invention 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 that the present invention solves the problems of the technologies described above employing 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 one for the blind hole of 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 by bearing pin, passes 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 L-type structure of the present invention, by bearing pin, connect one 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 and towards the surface of workpiece, be provided with the pointed tooth of protrusion.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, until clamp the outside boss in the lower end of drop-down claw, touch claw body upstanding edge, clamp drop-down claw stop motion, workpiece is clamped drop-down.Against existing technologies, the present invention 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.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is not structural representation during clamping work pieces of the present invention.
Fig. 2 is the structural representation after clamping work pieces of the present invention.
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 present invention.
Figure
1in label be: 1. chuck body, 2. slide block, 3. trip bolt, 4. claw body, 5. spring, 6. bearing pin, 7. clamps drop-down claw.71. pointed tooths, 72. boss.
The specific embodiment
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 one by bearing pin 6 and clamps drop-down claw 7; 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 one for the blind hole of 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.When clamping work pieces not, spring 5 will clamp the outside boss in drop-down claw lower end 72 tops from claw body; When 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 present invention 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, until clamp the outside boss in the lower end of drop-down claw, touch claw body upstanding edge, clamp drop-down claw stop motion, workpiece is clamped drop-down.
The present invention 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. a 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.
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 one for the blind hole of 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 by bearing pin, passes 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 |
|---|---|---|---|
| CN201410338275.6A CN104096876A (en) | 2014-07-16 | 2014-07-16 | Clamping device with pull-down function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338275.6A CN104096876A (en) | 2014-07-16 | 2014-07-16 | Clamping device with pull-down function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104096876A true CN104096876A (en) | 2014-10-15 |
Family
ID=51665638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410338275.6A Pending CN104096876A (en) | 2014-07-16 | 2014-07-16 | Clamping device with pull-down function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104096876A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668603A (en) * | 2015-02-13 | 2015-06-03 | 广西农业职业技术学院 | Axial moving end surface positioning three-claw chuck |
| CN104942382A (en) * | 2015-05-27 | 2015-09-30 | 成都绿迪科技有限公司 | Automatic clamping structure of threading machine |
| CN105057546A (en) * | 2015-07-31 | 2015-11-18 | 南京惠德机械有限公司 | Suspension riveting rivet positioning device |
| CN105215932A (en) * | 2015-11-19 | 2016-01-06 | 江汉大学 | A kind of expansion bolt cleaner |
-
2014
- 2014-07-16 CN CN201410338275.6A patent/CN104096876A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668603A (en) * | 2015-02-13 | 2015-06-03 | 广西农业职业技术学院 | Axial moving end surface positioning three-claw chuck |
| CN104668603B (en) * | 2015-02-13 | 2017-07-07 | 广西农业职业技术学院 | One kind axial movement end face positioning scroll chuck |
| CN104942382A (en) * | 2015-05-27 | 2015-09-30 | 成都绿迪科技有限公司 | Automatic clamping structure of threading machine |
| CN105057546A (en) * | 2015-07-31 | 2015-11-18 | 南京惠德机械有限公司 | Suspension riveting rivet positioning device |
| CN105215932A (en) * | 2015-11-19 | 2016-01-06 | 江汉大学 | A kind of expansion bolt cleaner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |