CN213318545U - Welding fixture - Google Patents
Welding fixture Download PDFInfo
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- CN213318545U CN213318545U CN202021409745.0U CN202021409745U CN213318545U CN 213318545 U CN213318545 U CN 213318545U CN 202021409745 U CN202021409745 U CN 202021409745U CN 213318545 U CN213318545 U CN 213318545U
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Abstract
The utility model discloses a welding jig, include: a work table; the positioning mechanism is fixed on the workbench and used for positioning a workpiece; fixture, it is fixed in the workstation, fixture includes: the first clamping assembly comprises a first telescopic and rotatable clamping hand, and the first clamping hand is used for fixing one end of a workpiece; and the second clamping assembly comprises a rotatable second clamping hand, and the second clamping hand is used for fixing the other end of the workpiece. This application sets up the centre gripping cylinder and drives first centre gripping hand flexible, and then makes the one end of first centre gripping hand and work piece offset, and the other end of second centre gripping hand and work piece offsets, can carry out the centre gripping to the work piece of different size and size, and the centre gripping is effectual.
Description
Technical Field
The utility model relates to a mechanical clamping technical field especially relates to a welding jig.
Background
The welding quality of the workpieces is directly related to the quality of positioning and clamping of each workpiece, so that a welding clamp is needed to ensure positioning, the stability of products during welding is enhanced, and the requirements of product welding are met. Most of the existing welding fixtures do not have a positioning function, and the clamping force and stability are not enough.
The positioning and clamping unit of the welding fixture comprises a clamping device, the clamping device comprises a clamping block and a positioning block, one end of the clamping block is hinged to one end of the positioning block, the other end of the clamping block is provided with at least one clamping portion, the other end of the positioning block is provided with at least one positioning portion, the clamping portion and the positioning portion are arranged oppositely, a first gap used for accommodating a part to be machined is reserved between the clamping portion and the positioning portion, and an adjusting gasket used for adjusting the size of the first gap is detachably arranged between the clamping portion and the positioning portion through a connecting piece.
The above scheme has the defects: that is, the clamping quality is not good, and when clamping different workpieces, the gasket needs to be adjusted, and the operation is troublesome.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned of prior art, the utility model aims to solve the technical problem that a welding jig is proposed for welding jig centre gripping quality is not high among the solution prior art, the inconvenient scheduling problem of operation.
The utility model provides a technical scheme that its technical problem adopted is a welding jig, include:
a work table;
the positioning mechanism is fixed on the workbench and used for positioning a workpiece;
fixture, it is fixed in the workstation, fixture includes: the first clamping assembly comprises a first telescopic and rotatable clamping hand, and the first clamping hand is used for fixing one end of a workpiece; and the second clamping assembly comprises a rotatable second clamping hand, and the second clamping hand is used for fixing the other end of the workpiece.
Preferably, the positioning mechanism comprises: the fixed seat is fixed on the workbench and provided with a guide rail; the sliding block is arranged in the fixed seat and can slide along the guide rail; the liftable locating piece, it sets up the top at the sliding block.
Preferably, the positioning mechanism is further provided with a lifting cylinder which is fixed on the workbench, and a piston rod penetrates through the sliding block and is fixedly connected with the positioning block.
Preferably, two guide rails are arranged in the fixed seat, and a return spring is sleeved on an outer arm of each guide rail.
Preferably, the first clamping assembly comprises: a first fixing block fixed to the table; the rotatable first clamping arm is movably connected to the first fixing block, and a sliding groove is formed in the first clamping arm; the clamping cylinder is arranged on the first fixing block and drives the first clamping hand to slide along the sliding groove to clamp the workpiece.
Preferably, the first clamping hand comprises a rotating part and a clamping part hinged to the rotating part, the rotating part is movably connected with the cylinder, and the clamping part is arranged in the sliding groove and can slide along the sliding groove.
Preferably, the second clamping assembly comprises: the second fixed block is fixed on the workbench and is opposite to the first fixed block; the rotatable second clamping arm is movably connected to the second fixed block; the second clamping hand is hinged to the second clamping arm.
Preferably, a motor for driving the second clamp arm to rotate is further provided.
Preferably, a torsion spring is arranged between the second clamping hand and the second clamping arm.
Preferably, a rotating disc is arranged between the second fixing block and the second clamping arm.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1. set up the centre gripping cylinder and drive first centre gripping hand flexible, and then make first centre gripping hand offset with the one end of work piece, the second centre gripping hand offsets with the other end of work piece, can carry out the centre gripping to the work piece of different size sizes, and the centre gripping is effectual.
2. The first clamping hand and the second clamping hand are arranged to rotate, when the other side of the workpiece needs to be welded, the first clamping hand and the second clamping hand only need to be rotated, and then the workpiece is driven to rotate, so that the surface to be welded on the workpiece faces to a worker, and welding is facilitated.
3. The positioning mechanism is arranged, so that the workpiece can be positioned, the workpiece cannot shake in the welding process, and the clamping effect is better; the reset spring is in a compression or stretching state in the clamping process, so that the bottom of the workpiece is tightly abutted to the positioning block, and the workpiece is clamped more stably.
4. A torsion spring is arranged between the second clamping hand and the second clamping arm, the workpiece is pushed to abut against the second clamping hand in the process of extending the first clamping hand, and the second clamping hand abuts against the workpiece under the elastic force provided by the torsion spring, so that the clamping effect is better, and meanwhile, a buffering effect can be formed in the clamping process of clamping the workpiece.
Drawings
FIG. 1 is a schematic structural view of a welding jig according to an embodiment;
FIG. 2 is a schematic structural view of a first clamping assembly according to an embodiment;
FIG. 3 is a schematic structural view of a second clamping assembly according to an embodiment;
FIG. 4 is a schematic structural view of a positioning mechanism in the embodiment;
in the figure, 100-workpiece;
200-a workbench;
300-a first clamping assembly, 310-a first fixed block, 320-a clamping cylinder, 330-a first clamping hand, 331-a rotating part, 332-a clamping part, 333-a first bolt, 334-a second bolt, 340-a first clamping arm, 341-a chute, 350-a rotating disc;
400-a second clamping assembly, 410-a second fixed block, 420-a second clamping arm, 430-a second clamping hand, 440-a torsion spring;
500-a positioning mechanism, 510-a lifting cylinder, 520-a fixed seat, 530-a guide rail, 540-a return spring, 550-a sliding block and 560-a positioning block;
600-motor.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Referring to fig. 1-4, the utility model discloses a welding jig, include: a work table 200;
a positioning mechanism 500 fixed to the table 200, the positioning mechanism 500 being configured to position the workpiece 100;
a clamping mechanism fixed to the work table 200, the clamping mechanism including: the first clamping assembly 300 comprises a first telescopic and rotatable clamping hand 330, wherein the first clamping hand 330 is used for fixing one end of the workpiece 100; the second clamping assembly 400 comprises a rotatable second clamping hand 430, and the second clamping hand 430 is used for fixing the other end of the workpiece 100.
The working principle of the embodiment is as follows:
firstly, the positioning mechanism 500 is attached to the bottom of the workpiece 100, so that the workpiece 100 is limited from shaking in the horizontal direction, the first clamping hand 330 extends, the workpiece 100 is pushed to move towards the direction close to the second clamping assembly 400, until the two ends of the workpiece 100 are respectively abutted against the first clamping hand 330 and the second clamping hand 430, and the clamping action is finished; the side facing the operator can be welded at this time, when the side facing away from the operator on the workpiece needs to be welded, the first clamping hand 330 and the second clamping hand 430 only need to be rotated, and then the workpiece 100 is driven to turn over, so that the side needing to be welded faces the operator, and welding is facilitated.
It should be noted that, in the present embodiment, the first clamping assembly 300 and the second clamping assembly 400 are disposed oppositely, that is, they respectively clamp one end of the workpiece 100, so that the clamping effect is better.
The positioning mechanism 500 includes: a fixing seat 520 fixed to the worktable 200, the fixing seat 520 having a guide rail 530; a sliding block 550 disposed in the fixing seat 520 and slidable along the guide rail 530; and a liftable positioning block 560 provided above the slider 550.
The positioning mechanism 500 is further provided with a lifting cylinder 510 which is fixed on the workbench 200 and a piston rod passes through the sliding block 550 and is fixedly connected with the positioning block 560.
In this embodiment, the positioning block 560 is attached to the bottom of the workpiece 100, and the shape of the positioning block 560 may be adapted to different shapes of the workpiece 100. It is conceivable to arrange the positioning block 560 to be liftable with respect to the slide block 550 such that the jig can hold workpieces 100 of different heights, raise the height of the positioning block 560 if the workpiece 100 is low, and lower the height of the positioning block 560 if the workpiece 100 is high.
Two guide rails 530 are arranged in the fixed seat 520, and a return spring 540 is sleeved on the outer arm of each guide rail 530.
After the welding operation is completed, the first clamping hand 330 is shortened, the workpiece 100 is reset under the action of the reset spring 540 until the first clamping hand 330 and the second clamping hand 430 are separated from the workpiece 100, and at this time, the positioning block 560 is lifted, and the welded workpiece 100 can be taken out. In this process, the positioning block 560 is lifted and then taken out to facilitate the application of force, so that the first clamping assembly 300 and the second clamping assembly 400 are not blocked, and it is convenient to observe and detect whether the weld of the workpiece 100 meets the requirement.
The first clamping assembly 300 includes: a first fixing block 310 fixed to the table 200; a rotatable first clamping arm 340 movably connected to the first fixing block 310, wherein the first clamping arm 340 is provided with a sliding groove 341; the clamping cylinder 320 is disposed on the first fixing block 310, and the clamping cylinder 320 drives the first clamping hand 330 to slide along the sliding groove 341 to clamp the workpiece 100.
The first clamping hand 330 includes a rotating portion 331 and a clamping portion 332 hinged to the rotating portion 331, the rotating portion 331 is movably connected to the cylinder, and the clamping portion 332 is disposed in the sliding slot 341 and can slide along the sliding slot 341.
As shown in fig. 2, a first latch 333 is provided on the clamping portion 332, the first latch 333 slides in the sliding groove 341, a second latch 334 is provided at the connection between the rotating portion 331 and the clamping portion 332, and the second latch 334 is located on the upper surface of the clamping arm; when the clamping cylinder 320 extends, the rotating portion 331 pushes the clamping portion 332 to slide in the sliding groove 341 until the lower end of the clamping portion 332 abuts against the workpiece 100, the clamping cylinder 320 continues to extend to drive the rotating portion 331 and the clamping portion 332 to rotate until the upper end and the lower end of the clamping portion 332 abut against the workpiece 100, the clamping cylinder 320 stops extending, the clamping force is the largest at this time, the clamping points for the workpiece 100 are the largest, and the clamping quality is the best.
The second clamping assembly 400 includes: a second fixing block 410 fixed to the table 200 and disposed opposite to the first fixing block 310; a rotatable second clamping arm 420 movably connected to the second fixing block 410; the second grip hand 430 is hinged to the second grip arm 420.
Under the pushing of the clamping cylinder 320, the workpiece 100 is firstly abutted against the lower end of the second clamping hand 430, when the clamping cylinder 320 extends continuously, the second clamping hand 430 rotates to the upper end and the lower end to be abutted against the workpiece 100, the clamping force is the largest at the moment, the clamping point to the workpiece 100 is the largest, and the clamping quality is the highest.
A motor 600 for driving the second clamp arm 420 to rotate is also provided.
The motor 600 in this embodiment transmits power to the second clamping assembly 400 through a pulley.
A torsion spring 440 is disposed between the second clamping arm 430 and the second clamping arm 420.
It can be thought that, in the clamping process of the second clamping hand 430, the torsion spring 440 plays a role of buffering, and in the process that the lower end of the second clamping hand 430 abuts against the workpiece 100 to abut against the upper end and the lower end of the second clamping hand 430 against the workpiece 100, the torsion spring 440 always provides a pretightening force for the lower end of the second clamping hand 430, so that the lower end of the second clamping hand 430 can always tightly abut against the workpiece 100, further, the whole clamping process of the workpiece 100 is more stable, and the workpiece 100 does not shake in the pushing process of the clamping cylinder 320.
A rotating disc 350 is arranged between the second fixing block 410 and the second clamping arm 420.
In the embodiment, the first clamping assembly 300 pushes the workpiece 100 to move laterally, and the second clamping assembly 400 acts as a driving wheel to drive the workpiece 100 to turn over, so that the rotating disc 350 is disposed between the second clamping arm 420 and the second fixing block 410 to make the turning process smoother. The present embodiment also provides a rotating disk 350 between the first clamping arm 340 and the first fixing block 310, so that the first clamping assembly 300 does not interfere with the overturning process of the workpiece 100.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A welding fixture, comprising:
a work table;
the positioning mechanism is fixed on the workbench and used for positioning a workpiece;
fixture, it is fixed in the workstation, fixture includes: the first clamping assembly comprises a first telescopic and rotatable clamping hand, and the first clamping hand is used for fixing one end of a workpiece; and the second clamping assembly comprises a rotatable second clamping hand, and the second clamping hand is used for fixing the other end of the workpiece.
2. The welding fixture of claim 1, wherein the positioning mechanism comprises: the fixed seat is fixed on the workbench and provided with a guide rail; the sliding block is arranged in the fixed seat and can slide along the guide rail; the liftable locating piece, it sets up the top at the sliding block.
3. The welding jig of claim 2, wherein the positioning mechanism further comprises a lifting cylinder fixed on the worktable and a piston rod passing through the sliding block and fixedly connected to the positioning block.
4. The welding fixture of any one of claims 2 or 3, wherein two guide rails are arranged in the fixed seat, and a return spring is sleeved on an outer arm of each guide rail.
5. The welding fixture of claim 1, wherein the first clamping assembly comprises: a first fixing block fixed to the table; the rotatable first clamping arm is movably connected to the first fixing block, and a sliding groove is formed in the first clamping arm; the clamping cylinder is arranged on the first fixing block and drives the first clamping hand to slide along the sliding groove to clamp the workpiece.
6. The welding jig of claim 5, wherein the first clamping hand comprises a rotating portion and a clamping portion hinged to the rotating portion, the rotating portion is movably connected to the cylinder, and the clamping portion is disposed in the sliding groove and can slide along the sliding groove.
7. The welding fixture of claim 5, wherein the second clamping assembly comprises: the second fixed block is fixed on the workbench and is opposite to the first fixed block; the rotatable second clamping arm is movably connected to the second fixed block; the second clamping hand is hinged to the second clamping arm.
8. A welding fixture according to claim 7, further comprising a motor for driving the second clamping arm in rotation.
9. A welding jig according to any one of claims 7 or 8 wherein a torsion spring is provided between the second clamping hand and the second clamping arm.
10. The welding fixture of claim 7, wherein a rotating disk is disposed between the second clamping arm and the second fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409745.0U CN213318545U (en) | 2020-07-16 | 2020-07-16 | Welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409745.0U CN213318545U (en) | 2020-07-16 | 2020-07-16 | Welding fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213318545U true CN213318545U (en) | 2021-06-01 |
Family
ID=76089645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021409745.0U Active CN213318545U (en) | 2020-07-16 | 2020-07-16 | Welding fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213318545U (en) |
-
2020
- 2020-07-16 CN CN202021409745.0U patent/CN213318545U/en active Active
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