CN210676693U - Quick-change chuck and clamping device applying same - Google Patents
Quick-change chuck and clamping device applying same Download PDFInfo
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- CN210676693U CN210676693U CN201921555606.6U CN201921555606U CN210676693U CN 210676693 U CN210676693 U CN 210676693U CN 201921555606 U CN201921555606 U CN 201921555606U CN 210676693 U CN210676693 U CN 210676693U
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Abstract
The utility model provides a quick-change chuck and a clamping device using the same, wherein the quick-change chuck comprises more than four elastic clamping blocks, and all the elastic clamping blocks are coaxially arranged and enclose a circular clamping opening; a first opening is arranged between the first ends of two adjacent elastic clamping blocks, the first opening extends to the second end of the elastic clamping block along the end part of the first end of the elastic clamping block, and the extending distance of the first opening is less than the length of the elastic clamping block; the middle part of the second end of the elastic clamping block is provided with a second opening, the second opening extends to the first end of the elastic clamping block along the end part of the second end of the elastic clamping block, and the extension distance of the second opening is less than the length of the elastic clamping block. The clamping device comprises a sleeve, a pipe bending chuck and a quick-change chuck. The utility model has the advantages of quick and simple disassembly and assembly, and can be used for clamping pipes with various diameters.
Description
Technical Field
The utility model relates to a chuck technical field specifically is a clamping device who relates to a quick change chuck and use it.
Background
A collet, known as a collet or collet, is a fixture used to secure components that require modification. The clamping head on the pipe bender usually forms a clamping opening for clamping the pipe by four independent arc-shaped clamping blocks, the clamping opening can only clamp the pipe with a certain specific diameter, and when the pipe with different diameters needs to be clamped, different clamping heads need to be replaced. Because the arc-shaped clamping blocks are fixed on the clamping device of the pipe bending machine through screws, all the arc-shaped clamping blocks need to be detached one by one when the clamping heads are replaced, and then the arc-shaped clamping blocks of another specification are replaced one by one so as to clamp pipes with different diameters. The structure of the existing chuck directly leads to long time consumption for chuck replacement, and is not beneficial to improving the production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides a quick change chuck that can dismantle fast and install.
A second object of the present invention is to provide a clamping device using a quick-change chuck.
In order to achieve the first object, the utility model provides a quick-change chuck, which comprises more than four elastic clamping blocks, wherein all the elastic clamping blocks are coaxially arranged and form a circular clamping opening; a first opening is arranged between the first ends of two adjacent elastic clamping blocks, the first opening extends to the second end of the elastic clamping block along the end part of the first end of the elastic clamping block, and the extending distance of the first opening is less than the length of the elastic clamping block; the middle part of the second end of the elastic clamping block is provided with a second opening, the second opening extends to the first end of the elastic clamping block along the end part of the second end of the elastic clamping block, and the extension distance of the second opening is less than the length of the elastic clamping block.
According to the scheme, the circular clamping opening is formed by more than four elastic clamping blocks, the first ends of all the elastic clamping blocks are independently separated, and the second ends of all the elastic clamping blocks are connected together to form a whole, so that the disassembly and the assembly of the chuck are facilitated, unnecessary time consumption is saved, and the working efficiency is improved; set up first opening through setting up between the first end at two adjacent elasticity clamp splice, set up the second opening at the second end of elasticity clamp splice, first opening and second opening dislocation set on the hoop of quick change chuck for the elasticity clamp splice has good elasticity under its self material and structural cooperation, is favorable to the multiple tubular product of centre gripping preset diameter within range, and the practicality is high.
Further, the first opening extends for a distance greater than half the length of the resilient clamping block.
Further, the extension distance of the second opening is larger than half of the length of the elastic clamping block.
The further scheme is that a first guide cambered surface is arranged on the inner side of the first end of the elastic clamping block and extends towards the middle of the elastic clamping block along the end face of the first end of the elastic clamping block in an inclined mode.
The further scheme is that a second guide cambered surface is arranged on the inner side of the second end of the elastic clamping block, and the second guide cambered surface extends towards the middle of the elastic clamping block along the end part of the second end of the elastic clamping block in an inclined mode.
Further, the difference between the maximum clamping diameter and the minimum clamping diameter of the clamping opening is within 10 cm.
In order to realize the second purpose, the utility model provides a clamping device, including sleeve, return bend chuck and quick change chuck, the return bend chuck is located the sleeve, and the quick change chuck is located the return bend chuck.
Drawings
Fig. 1 is a first view structural diagram of an embodiment of a quick-change chuck according to the present invention.
Fig. 2 is a side view of an embodiment of the quick-change chuck of the present invention.
Fig. 3 is a structural diagram of a second view angle of the embodiment of the quick-change chuck of the present invention.
Fig. 4 is a structural diagram of an embodiment of the clamping device of the present invention.
Fig. 5 is an exploded view of an embodiment of the clamping device of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Embodiments of quick-change chucks
Referring to fig. 1 and 2, fig. 1 is a structural diagram of a first view angle of an embodiment of a quick-change chuck according to the present invention, and fig. 2 is a side view of an embodiment of a quick-change chuck according to the present invention. The quick-change chuck 1 of the present embodiment includes four elastic clamping blocks 11, the four elastic clamping blocks 11 are coaxially disposed and enclose a circular first clamping opening 12, and the four elastic clamping blocks 11 are uniformly disposed at intervals on the circumference of the first clamping opening 12. The first ends of two adjacent elastic clamping blocks 11 are separated independently, and the second ends of two adjacent elastic clamping blocks 11 are connected together to form a connecting part 19.
A first opening 15 is arranged between the first ends 13 of two adjacent elastic clamping blocks 11, and the first opening 15 extends along the end part of the first end 13 of the elastic clamping block 11 to the second end 14 of the elastic clamping block 11. The extending distance L1 of the first opening 15 is less than the length of the elastic clamping block 11 and more than half of the length of the elastic clamping block 11, and the first opening 15 is preferably in a strip shape.
The middle part of the second end 14 of the elastic clamping block 11 is provided with a second opening 16, the second opening 16 is arranged in parallel with the first opening 15, and the second opening 16 extends towards the first end 13 of the elastic clamping block 11 along the end part of the second end 14 of the elastic clamping block 11. The second opening 16 extends a distance L2 less than the length of the spring clamp block 11 and more than half the length of the spring clamp block 11. In the present embodiment, the extension distance L1 of the first opening 15 is equal to the extension distance L2 of the second opening 16. The second opening 16 communicates with the first clamping opening 12 through the thickness direction of the elastic clamping block 11.
Referring to fig. 3 in conjunction with fig. 1, fig. 3 is a structural diagram of a second view of an embodiment of the quick-change chuck according to the present invention. The first guiding cambered surface 17 is arranged on the inner side of the first end 13 of the elastic clamping block 11, and the first guiding cambered surface 17 extends obliquely towards the middle of the elastic clamping block 11 along the end part of the first end 13 of the elastic clamping block 11, so that a disconnected guiding ring is formed on the inner side of the first end 13 of the quick-change chuck 1, and a pipe can be conveniently and quickly inserted into the quick-change chuck 1.
The inside of the second end 14 of the resilient clamping piece 11 is provided with a second guiding arc-shaped surface 18, and the second guiding arc-shaped surface 18 extends obliquely along the end of the second end 14 of the resilient clamping piece 11 towards the middle of the resilient clamping piece 11, so that a broken guiding ring is formed inside the second end 14 of the quick-change chuck 1, so that a tubular product can be inserted into the quick-change chuck 1 from the first end of the quick-change chuck 1 as well as from the second end of the quick-change chuck 1.
Before clamping, each elastic clamping block 11 is in a normal state, and the diameter of the first clamping opening 12 is the maximum clamping diameter; when clamping a pipe, each elastic clamping block 11 elastically deforms towards the center direction of the first clamping opening 12, and the clamping diameter of the first clamping opening 12 is equal to the outer diameter of the pipe. The quick-change chuck 1 clamps various pipes with different outer diameters by controlling the elastic deformation of each elastic clamping block 11, and on the premise of ensuring effective clamping, the diameter of the minimum pipe capable of being clamped is the minimum clamping diameter, and the difference between the maximum clamping diameter and the minimum clamping diameter is within 10 cm. In the present embodiment, the first clamping opening 12 has a diameter of 35cm in a normal state, and can be used for clamping a pipe material with a diameter of 25cm to 35 cm.
Clamping device embodiment
Referring to fig. 4 and 5, fig. 4 is a structural diagram of an embodiment of the clamping device of the present invention, and fig. 5 is an exploded view of an embodiment of the clamping device of the present invention. The clamping device of this embodiment includes sleeve 2, return bend chuck 3 and quick change chuck 1, and sleeve 2 sets up on the bending machine, and return bend chuck 3 is conventional chuck, and the first end of return bend chuck 3 is located sleeve 2, and the second end protrusion sleeve 2 terminal surface of return bend chuck 3. The elbow clamping head 3 comprises four arc-shaped clamping blocks 31, the four arc-shaped clamping blocks 31 are coaxially arranged and enclose a circular second clamping opening 32, and the quick-change clamping head 1 is positioned in the second clamping opening 32. One end of the arc-shaped clamping block 31 is provided with a convex part 311, the convex part 311 protrudes outwards along the circumferential surface of the arc-shaped clamping block 31, and an inclined surface 312 is arranged between the convex part 311 and the circumferential surface of the arc-shaped clamping block 31 for transition. The position and the projection height of the projection 311 of each arc-shaped clamping block 31 are the same. The outer diameter of the convex portion 311 of the arc-shaped clamping block 31 is larger than the inner diameter of the sleeve 2, so that the convex portion 311 of the arc-shaped clamping block 31 is always outside the sleeve 2.
When a pipe needs to be clamped, the pipe bending chuck 3 is controlled to move towards the sleeve 2 along the axial direction of the pipe bending chuck 3, and the clamping effect of the pipe bending chuck 3 is achieved. In this process, the sleeve 2 abuts against the inclined surfaces 312 of the arc-shaped clamping blocks 31 and simultaneously presses the four arc-shaped clamping blocks 31 inward, so that the diameter of the second clamping opening 32 is gradually reduced. The more the elbow chuck 3 moves towards the sleeve 2, the larger the elastic deformation of the elbow chuck 3 is, the smaller the diameter of the second clamping opening 32 is, that is, the larger the acting force of the second clamping opening 32 on the quick-change chuck 1 is, so that the first clamping opening 12 of the quick-change chuck 1 is tightened and can be used for clamping a pipe.
When the pipe needs to be released, the elbow clamping head 3 can be controlled to move towards the direction away from the sleeve 2, so that the second clamping opening 32 is loosened, the first clamping opening 12 is opened, and the pipe is released.
When accomplishing a batch tubular product processing operation, need add man-hour to the tubular product of another batch of different diameters, need not to dismantle under the condition of return bend chuck 3 and quick change chuck 1, can carry out the centre gripping in the tubular product disect insertion quick change chuck 1 of other different diameters of predetermineeing the diameter within range, need to update the scheme of return bend chuck 3 with prior art, the utility model discloses it is more simple and convenient to operate, can effectively improve production efficiency. And because the quick-change chuck 1 is clamped in the second clamping opening 32, other additional connecting structures are not needed, when the quick-change chuck 1 is disassembled and assembled, only the second clamping opening 32 needs to be controlled to be opened to release the quick-change chuck 1, and the operation is simple, convenient and quick.
Claims (7)
1. The utility model provides a quick change chuck, includes the elasticity clamp splice, its characterized in that:
the number of the elastic clamping blocks is more than four, and all the elastic clamping blocks are coaxially arranged and enclose a circular clamping opening;
a first opening is arranged between the first ends of two adjacent elastic clamping blocks, the first opening extends to the second end of the elastic clamping block along the end part of the first end of the elastic clamping block, and the extending distance of the first opening is smaller than the length of the elastic clamping block;
the middle part of the second end of the elastic clamping block is provided with a second opening, the second opening extends towards the first end of the elastic clamping block along the end part of the second end of the elastic clamping block, and the extending distance of the second opening is smaller than the length of the elastic clamping block.
2. The quick-change chuck according to claim 1, wherein:
the first opening extends for a distance greater than half the length of the resilient clamping block.
3. The quick-change chuck according to claim 1, wherein:
the extension distance of the second opening is larger than half of the length of the elastic clamping block.
4. The quick-change chuck according to claim 1, wherein:
the inner side of the first end of the elastic clamping block is provided with a first guide arc surface, and the first guide arc surface extends towards the middle of the elastic clamping block along the end part of the first end of the elastic clamping block in an inclined manner.
5. The quick-change chuck according to claim 4, wherein:
and a second guide arc surface is arranged on the inner side of the second end of the elastic clamping block and extends towards the middle part of the elastic clamping block along the end part of the second end of the elastic clamping block in an inclined manner.
6. The quick-change chuck according to any one of claims 1 to 5, wherein:
the difference between the maximum clamping diameter and the minimum clamping diameter of the clamping opening is within 10 cm.
7. A clamping device, includes sleeve and return bend chuck, the return bend chuck is located in the sleeve, its characterized in that: further comprising a quick-change collet according to any one of claims 1 to 6, the quick-change collet being located within the elbow collet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921555606.6U CN210676693U (en) | 2019-09-18 | 2019-09-18 | Quick-change chuck and clamping device applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921555606.6U CN210676693U (en) | 2019-09-18 | 2019-09-18 | Quick-change chuck and clamping device applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210676693U true CN210676693U (en) | 2020-06-05 |
Family
ID=70891268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921555606.6U Active CN210676693U (en) | 2019-09-18 | 2019-09-18 | Quick-change chuck and clamping device applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210676693U (en) |
-
2019
- 2019-09-18 CN CN201921555606.6U patent/CN210676693U/en active Active
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