CN210997032U - Compressing device for friction stir welding - Google Patents
Compressing device for friction stir welding Download PDFInfo
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- CN210997032U CN210997032U CN201921485603.XU CN201921485603U CN210997032U CN 210997032 U CN210997032 U CN 210997032U CN 201921485603 U CN201921485603 U CN 201921485603U CN 210997032 U CN210997032 U CN 210997032U
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- linking arm
- friction stir
- stir welding
- connecting arm
- pressing device
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- 238000003466 welding Methods 0.000 title claims abstract description 48
- 238000003756 stirring Methods 0.000 title claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 35
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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Abstract
The utility model discloses a closing device for friction stir welding, including first linking arm, second linking arm, regulating part and pinch roller, the second linking arm with first linking arm rotates mutually to be connected, the pinch roller can set up with rotating on the second linking arm, the regulating part can adjust the position ground and set up on the first linking arm, closing device is still including setting up the second linking arm with elastic component between the regulating part, the effect direction of elastic force of elastic component with the regulating part is relative the displacement direction of first linking arm is the same. The compressing device for friction stir welding has the advantages of simple structure, high reliability, good applicability and strong practicability, can effectively simplify the design of friction stir welding tools, improves the assembly precision of workpieces, ensures the welding quality, and can achieve the purposes of simplifying operation and improving the production efficiency.
Description
Technical Field
The utility model relates to a friction stir welding technical field, concretely relates to friction stir welding uses closing device.
Background
Friction Stir Welding (FSW) is a new solid phase welding method that uses the relative frictional motion between the contact surfaces of the stir head and the weldment and the heat generated by the plastic flow of the material to effect the joint. Compared with the traditional welding method, the friction stir welding has the advantages of good welding adaptability, high joint quality, less pollution in the welding process, convenience for mechanical automation and the like.
The friction stir welding technology belongs to a relatively precise processing technology, has high requirements on assembly before welding, requires that a workpiece to be welded must be rigidly fixed, and provides high requirements on welding tools. During the friction stir welding process, a piano type tool is generally adopted to meet the welding assembly requirements, the tool is high in complexity and manufacturing cost, and when the cover plate type two-dimensional annular welding line is welded, a tool pressing mechanism of a cover plate workpiece interferes the welding, the pressing mechanism is required to be designed in a welding follow-up mode, the complexity and the manufacturing cost of the tool are increased, and therefore the production efficiency and the production cost are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modified friction stir welding is with closing device to the problem among the prior art.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a closing device for friction stir welding, includes first linking arm, second linking arm, regulating part and pinch roller, the second linking arm with first linking arm rotates mutually to be connected, the pinch roller can set up with rotating on the second linking arm, the regulating part can set up with adjusting the position on the first linking arm, closing device is still including setting up the second linking arm with elastic component between the regulating part, the effect direction of elastic force of elastic component with the regulating part is relative the displacement direction of first linking arm is the same.
Preferably, the elastic member is a spring.
Further, the spring is in a compressed state, and two end parts of the spring are respectively abutted against the second connecting arm and the adjusting piece.
Preferably, the regulating part includes that the outer periphery is provided with the regulation pole and the fixed connection of external screw thread are in adjust the nut of a tip of pole, be provided with on the first linking arm with adjust the external screw thread matched with screw hole of pole, adjust the pole screw in the screw hole and with the screw hole passes through threaded connection, the nut is in lie in on the regulation pole and be close to a tip of second linking arm, the elastic component sets up the second linking arm with between the nut.
Preferably, the lowermost end of the pinch roller is located below the first and second connecting arms.
Preferably, the pressing device further comprises a limiting structure for limiting the rotation of the second connecting arm.
Further, limit structure is including setting up draw-in groove on the first linking arm is in with the setting first joint portion on the second linking arm, first joint portion can set up with rotating in the draw-in groove, the draw-in groove has right the rotation of first joint portion carries out spacing both sides wall.
Furthermore, the clamping grooves are symmetrically arranged on two opposite sides of the first connecting arm, the first clamping portion is of a U-shaped structure, and two sides of the U-shaped structure are respectively located in the clamping grooves on one side of the first connecting arm.
Furthermore, a second clamping portion connected with the pressing wheel is further arranged on the second connecting arm, and the second clamping portion and the first clamping portion are symmetrically arranged.
Furthermore, the second connecting arm is rotatably connected with the first connecting arm through a first shaft, the first shaft is located in the clamping groove and extends along the depth direction of the clamping groove, the second connecting arm is rotatably connected with the pressing wheel through a second shaft, and the first shaft and the second shaft are arranged in parallel.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a friction stir welding is with closing device simple structure, reliability height, suitability are good, the practicality is strong, can effectively simplify friction stir welding frock design, improve work piece assembly precision to guarantee welding quality, can reach simultaneously and realize the simplified operation, improve production efficiency's purpose.
Drawings
FIG. 1 is a perspective view of a pressing device for friction stir welding according to the present invention;
FIG. 2 is a front view of the pressing device for friction stir welding according to the present invention;
fig. 3 is a second front view of the pressing device for friction stir welding according to the present invention (the second connecting arm is rotated downward to a limit position relative to the first connecting arm);
fig. 4 is a schematic structural diagram of a first connecting arm of the present invention;
fig. 5 is a schematic structural diagram of a second connecting arm according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, the pressing device for friction stir welding of the present invention includes a first connecting arm 1, a second connecting arm 2, an adjusting member 3, a pressing wheel 4 and an elastic member 5.
During welding, the first connecting arm 1 is fixedly connected to a friction stir welding spindle head (not shown in the figure) through threads, and the length extending direction of the first connecting arm 1 is parallel to the axis extending direction of the spindle.
One end part of the second connecting arm 2 is rotatably connected with the first connecting arm 1 through a first shaft 6, and the pinch roller 4 is rotatably connected with the other end part of the second connecting arm 2 through a second shaft 7. In the welding process, the pressing wheel 4 is pressed on a workpiece to be welded, rolls on the surface of the part to be welded and provides pressing force, so that the pressing effect on the part to be welded is realized, the welding misalignment is controlled, and the welding precision is improved.
The adjusting part 3 is arranged on the first connecting arm 1 in a position-adjustable manner, the elastic part 5 is arranged between the second connecting arm 2 and the adjusting part 3, and the action direction of the elastic force of the elastic part 5 is the same as the displacement direction of the adjusting part 3 relative to the first connecting arm 1. The adjusting piece 3 is operated to enable the adjusting piece to displace relative to the first connecting arm 1, the elastic piece 5 is extruded in the moving process of the adjusting piece 3, and the elastic force of the elastic piece 5 acts on the second connecting arm 2, so that the second connecting arm 2 is driven to swing relative to the first connecting arm 1, and finally the pressing wheel 4 is pressed on the surface of a part to be welded. The pressing force of the pressing wheel 4 acting on the surface of the part to be welded can be controlled by controlling the displacement of the adjusting piece 3 relative to the first connecting arm 1, so that the pressing force of the pressing device can be adjusted. In addition, in the adjusting process, the adaptability of the pressing device to a certain welding press-in amount can be realized through the buffering effect of the elastic piece 5, so that the workpiece to be welded is prevented from being damaged.
In this embodiment, the adjusting member 3 includes an adjusting rod 31 and a nut 32, the adjusting rod 31 has an outer thread on its outer circumference, the nut 32 is fixed to one end of the adjusting rod 31 by a threaded connection, and the nut 32 is located at one end of the adjusting rod 31 close to the second connecting arm 2. The first connecting arm 1 is provided with a threaded hole 11 matched with the external thread of the adjusting rod 31, the adjusting rod 31 is screwed into the threaded hole 11 and is in threaded connection with the threaded hole 11, and the elastic element 5 is arranged between the second connecting arm 2 and the nut 32. When the pressing force of the pressing device is adjusted, the adjusting rod 31 is rotated, the adjusting rod 31 is matched with the threaded hole 11 in the first connecting arm 1, so that the adjusting rod 31 is displaced relative to the first connecting arm 1, the spring is extruded, and finally the spring acts on the second connecting arm 2 to rotate relative to the first connecting arm 1.
In this embodiment, the elastic member 5 is a spring, the spring is always in a compressed state, and two ends of the spring are respectively abutted to the second connecting arm 2 and the nut 32.
In the welding process, the lowest end of the pinch roller 4 is always positioned below the first connecting arm 1 and the second connecting arm 2, so that the pinch roller 4 can be pressed on the surface of a part to be welded.
The pressing device further comprises a limiting structure used for limiting the rotation of the second connecting arm 2. Specifically, as shown in fig. 1 to 5, the limiting structure includes a clamping groove 12 formed in the first connecting arm 1 and a first clamping portion 21 formed in the second connecting arm 2, the first clamping portion 21 can be rotatably disposed in the clamping groove 12, the clamping groove 12 has two side walls for limiting rotation of the first clamping portion 21, and the two side walls are respectively located at the top and the bottom of the clamping groove 12. When the second connecting arm 2 rotates upwards relative to the first connecting arm 1 until the first clamping portion 21 is abutted against the side wall of the top of the clamping groove 12, the side wall of the top of the clamping groove 12 forms a barrier to the first clamping portion 21, so that the second connecting arm 2 cannot rotate upwards relative to the first connecting arm 1 continuously; when the second connecting arm 2 rotates downward relative to the first connecting arm 1 until the first clamping portion 21 abuts against the side wall of the bottom of the clamping groove 12, the side wall of the bottom of the clamping groove 12 blocks the first clamping portion 21, so that the second connecting arm 2 cannot rotate downward relative to the first connecting arm 1, as shown in fig. 3.
In this embodiment, the slot 12 is a U-shaped structure, and two side portions of the U-shaped structure are two side walls of the slot 12, respectively. The clamping grooves 12 are symmetrically arranged on the front side and the rear side of the first connecting arm 1, the first clamping portion 21 is also in a U-shaped structure, and two sides of the U-shaped structure are respectively located in the clamping grooves 12 on one side of the first connecting arm 1.
The second connecting arm 2 is further provided with a second clamping portion 22 connected with the pressing wheel 4, the second clamping portion 22 and the first clamping portion 21 are symmetrically arranged, and the pressing wheel 4 is located in a U-shaped structure of the second clamping portion 22.
In this embodiment, the first shaft 6 is located in the slot 12, the first shaft 6 extends along the depth direction of the slot 12, and the first engaging portion 21 is rotatably connected to the first connecting arm 1 via the first shaft 6. The second shaft 7 is parallel to the first shaft 6, and the second clamping portion 22 is rotatably connected with the pinch roller 4 through the second shaft 7.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a closing device for friction stir welding which characterized in that: including first linking arm, second linking arm, regulating part and pinch roller, the second linking arm with first linking arm rotates mutually and connects, the pinch roller can set up with rotating on the second linking arm, the regulating part can set up with adjusting the position on the first linking arm, closing device is still including setting up the second linking arm with elastic component between the regulating part, the effect direction of elastic force of elastic component with the regulating part is relative the displacement direction of first linking arm is the same.
2. The pressing device for friction stir welding according to claim 1, characterized in that: the elastic piece is a spring.
3. The pressing device for friction stir welding according to claim 2, characterized in that: the spring is in a compressed state, and two end parts of the spring are respectively abutted to the second connecting arm and the adjusting piece.
4. The pressing device for friction stir welding according to claim 1, characterized in that: the regulating part includes that the outer periphery is provided with the regulation pole and the fixed connection of external screw thread are in adjust the nut of a tip of pole, be provided with on the first linking arm with adjust the external screw thread matched with screw hole of pole, adjust the pole screw in the screw hole and with the screw hole passes through threaded connection, the nut is in lie in on the regulation pole and be close to a tip of second linking arm, the elastic component sets up the second linking arm with between the nut.
5. The pressing device for friction stir welding according to claim 1, characterized in that: the lowest end of the pinch roller is located below the first connecting arm and the second connecting arm.
6. The pressing device for friction stir welding according to claim 1, characterized in that: the pressing device further comprises a limiting structure used for limiting the rotation of the second connecting arm.
7. The pressing device for friction stir welding according to claim 6, characterized in that: limit structure is in including setting up draw-in groove on the first linking arm is in with the setting first joint portion on the second linking arm, first joint portion can set up with rotating in the draw-in groove, the draw-in groove has right the rotation of first joint portion carries out spacing both sides wall.
8. The pressing device for friction stir welding according to claim 7, characterized in that: the clamping grooves are symmetrically arranged on two opposite sides of the first connecting arm, the first clamping portion is of a U-shaped structure, and two sides of the U-shaped structure are respectively located in the clamping grooves on one side of the first connecting arm.
9. The pressing device for friction stir welding according to claim 7 or 8, characterized in that: and a second clamping portion connected with the pinch roller is further arranged on the second connecting arm, and the second clamping portion and the first clamping portion are symmetrically arranged.
10. The pressing device for friction stir welding according to claim 7, characterized in that: the second connecting arm is connected with the first connecting arm in a rotating mode through a first shaft, the first shaft is located in the clamping groove and extends in the depth direction of the clamping groove, the second connecting arm is connected with the pressing wheel in a rotating mode through a second shaft, and the first shaft and the second shaft are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485603.XU CN210997032U (en) | 2019-09-06 | 2019-09-06 | Compressing device for friction stir welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485603.XU CN210997032U (en) | 2019-09-06 | 2019-09-06 | Compressing device for friction stir welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210997032U true CN210997032U (en) | 2020-07-14 |
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ID=71469709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921485603.XU Active CN210997032U (en) | 2019-09-06 | 2019-09-06 | Compressing device for friction stir welding |
Country Status (1)
| Country | Link |
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| CN (1) | CN210997032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317952A (en) * | 2020-11-10 | 2021-02-05 | 湖南坤鼎数控科技有限公司 | Friction stir welding follow-up auxiliary device |
-
2019
- 2019-09-06 CN CN201921485603.XU patent/CN210997032U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317952A (en) * | 2020-11-10 | 2021-02-05 | 湖南坤鼎数控科技有限公司 | Friction stir welding follow-up auxiliary device |
| CN112317952B (en) * | 2020-11-10 | 2022-02-25 | 湖南坤鼎数控科技有限公司 | Friction stir welding follow-up auxiliary device |
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Effective date of registration: 20200821 Address after: 215134 Zhongqi Zero Building, 19 Aigehao Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Co-patentee after: NANJING GOLDEN DRAGON BUS Co.,Ltd. Patentee after: SUZHOU AUTOMOTIVE RESEARCH INSTITUTE TSINGHUA University (XIANGCHENG) Address before: 215134 Zhongqi Zero Building, 19 Aigehao Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU AUTOMOTIVE RESEARCH INSTITUTE TSINGHUA University (XIANGCHENG) |