CN215747220U

CN215747220U - Welding jig and laser welding equipment

Info

Publication number: CN215747220U
Application number: CN202121751615.XU
Authority: CN
Inventors: 李杨威; 曹明辉; 宋玉龙; 钟浩明; 项有程; 安军辉; 陈焱; 高云峰
Original assignee: Han s Laser Technology Industry Group Co Ltd; Hans Laser Smart Equipment Group Co Ltd
Current assignee: Han s Laser Technology Industry Group Co Ltd; Hans Laser Smart Equipment Group Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-08
Anticipated expiration: 2031-07-28

Abstract

The utility model belongs to the field of laser welding, and particularly relates to a welding fixture and laser welding equipment, wherein the welding fixture comprises a driving assembly, a pressure arm assembly and a configuration fixture body assembly; the configuration fixture body assembly comprises a fixture body and an adjusting piece, a positioning channel used for containing a first workpiece is formed in the fixture body, the positioning channel axially penetrates through the fixture body, the adjusting piece is movably connected to the end portion of the positioning channel and abuts against one end of the first workpiece, a second workpiece is placed on one side, far away from the adjusting piece, of the fixture body, and the driving assembly can drive the pressing arm assembly to swing so that the pressing arm assembly is pressed at the connecting position of the first workpiece and the second workpiece or the first workpiece and the second workpiece are loosened. According to the utility model, the position of the adjusting piece in the positioning channel is changed, the height of the first workpiece can be adjusted to be compatible with second workpieces of different models, the driving component drives the pressing arm component to press the first workpiece and the second workpiece, the pressing force can be ensured, the manual operation is reduced, and the clamping efficiency of the clamp is improved.

Description

Welding jig and laser welding equipment

Technical Field

The utility model belongs to the technical field of laser welding, and particularly relates to a welding fixture and laser welding equipment.

Background

The turbocharging system of the automobile engine can improve the torque and the power of the engine by more than 20 to 30 percent, has obvious effect on the improvement of the power performance of the engine, and has very important influence on the performance of the whole engine due to the welding quality of different materials. The laser welding process improves the welding efficiency while meeting the requirement of high welding strength of the turbocharger. In the laser welding equipment, the welding quality and the welding efficiency are determined by a welding tool clamp to a great extent, and large-scale laser welding equipment is often compatible with part welding processes with different configurations, so that the universality of the laser welding equipment is improved, and the use cost of the equipment is reduced. The welding parts of turbochargers of different models usually have slight difference, however, the existing laser welding fixture is usually only specially used for welding the turbocharger connector of a certain model and is not compatible with the welding of the turbocharger connectors of different models. Therefore, a universal and efficient laser welding fixture is needed to realize welding on the same laser welding equipment.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the problem of the turbo charger connecting piece of the different models can not be compatible to current laser welding anchor clamps is solved.

In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a welding fixture, including a driving assembly, a pressing arm assembly, and a configuration fixture assembly for placing a first workpiece and a second workpiece connected to each other;

the configuration anchor clamps body subassembly includes the anchor clamps body and adjustment piece, the inside location passageway that is used for the first work piece of holding that is formed with of anchor clamps body, location passageway runs through along the axial the anchor clamps body, adjustment piece swing joint is in the tip of location passageway, the one end of first work piece of adjustment piece conflict, the anchor clamps body is kept away from one side of adjustment piece sets up the second work piece, and the other end of first work piece is connected on the second work piece, drive assembly can drive press the swing of arm subassembly to loosen or compress tightly the junction at first work piece and second work piece.

Optionally, the pressure arm assembly comprises a pressure arm, a pressure plate and a pressure ring, the pressure arm is connected to the driving assembly, the pressure plate is rotatably connected to the pressure arm, the pressure ring is rotatably connected to the pressure plate, and the pressure plate and the pressure ring are different in rotation direction.

Optionally, the pressure arm assembly further comprises a first pin shaft and a second pin shaft, a transfer block is arranged on the pressure arm, a limit groove for accommodating an end of the pressure plate is arranged on the transfer block, and the first pin shaft penetrates through the transfer block and is connected with the pressure plate in the limit groove;

the clamp plate is characterized in that an arc-shaped notch is formed in one end, far away from the adapter block, of the clamp plate, the clamping ring is arranged in the arc-shaped notch, and the second pin shaft is arranged at two ends of the clamping ring in the radial direction.

Optionally, the driving assembly is provided with a pressing arm support seat and a pressing arm connecting plate, one end of the pressing arm connecting plate is connected to the pressing arm support seat through a first hinge pin, the other end of the pressing arm connecting plate is connected to the pressing arm through a second hinge pin, and when the pressing arm assembly swings, the pressing arm rotates with the first hinge pin as an axis.

Optionally, the configuration fixture body assembly further comprises a pressing arm limiting block installed on the fixture body, an avoiding groove is formed in the pressing arm limiting block, and the switching block is abutted to the avoiding groove when the pressing arm assembly is in a pressing state.

Optionally, the driving assembly comprises a clamping cylinder and a cylinder joint, the cylinder joint is connected to the telescopic end of the clamping cylinder, and the cylinder joint is connected to the press arm assembly through a third hinge pin.

Optionally, the configuration fixture body assembly further comprises a first configuration limiting block mounted on the fixture body, wherein an accommodating groove is formed in the first configuration limiting block, and the accommodating groove is used for accommodating one end, far away from the first workpiece, of the second workpiece.

Optionally, the configuration fixture body assembly further comprises a second configuration limiting block, the second configuration limiting block comprises a horizontal portion and a vertical portion, the vertical portion is connected to the first configuration limiting block, a waist hole is formed in the vertical portion, and one end, far away from the vertical portion, of the horizontal portion abuts against the upper portion of a second workpiece.

Optionally, the adjusting member is screwed in the positioning channel, and a cushion pad is arranged between the adjusting member and the first workpiece.

Optionally, a chamfer is provided on the pressure ring.

In another aspect, an embodiment of the present invention provides a laser welding apparatus, including the welding fixture as described above.

According to the utility model, the first workpiece and the second workpiece are welded and connected to form the turbocharger connecting piece, one end of the first workpiece is abutted against the adjusting piece, the height of the part, exposed out of the positioning channel, of the first workpiece can be adjusted by changing the position of the adjusting piece in the positioning channel so as to adapt to the second workpieces compatible with different models, the driving assembly drives the pressing arm assembly to tightly press the first workpiece and the second workpiece, the pressing force can be ensured, the manual operation is reduced, and the clamping efficiency of the clamp is improved.

Drawings

FIG. 1 is a schematic view of a welding fixture in a compressed state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a welding fixture according to an embodiment of the present invention in an open position;

FIG. 3 is a schematic view of a driving assembly and a pressing arm assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view in partial cross-section of FIG. 3;

FIG. 5 is a schematic view of a configuration chuck body assembly provided in accordance with one embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a configuration chuck body assembly provided in accordance with one embodiment of the present invention;

FIG. 7 is a schematic view of a welding fixture provided in accordance with another embodiment of the present invention;

FIG. 8 is a schematic view of a configuration clamp body assembly provided in accordance with another embodiment of the present invention;

FIG. 9 is a schematic illustration of a first workpiece and a second workpiece provided in accordance with an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a drive assembly; 11. a clamping cylinder; 12. a cylinder joint; 13. a third hinge pin;

2. a press arm assembly; 20. pressing the arm; 21. pressing a plate; 22. pressing a ring; 221. a chamfer plane; 23. a transfer block; 231. a limiting groove; 24. a first pin shaft; 25. a second pin shaft; 26. a pressure arm supporting seat; 27. a pressure arm connecting plate; 28. a first hinge pin; 29. a second hinge pin;

3. configuring a fixture body assembly; 31. a clamp body; 311. a positioning channel; 32. an adjustment member; 33. a pressure arm limiting block; 331. an avoidance groove; 34. a first configuration limiting block; 341. accommodating grooves; 35. a second configuration limiting block; 351. a horizontal portion; 352. a vertical portion; 36. a cushion pad;

4. a first workpiece; 5. a second workpiece.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 6, in one aspect, an embodiment of the present invention provides a welding fixture for clamping a first workpiece 4 and a second workpiece 5, the welding fixture includes a driving assembly 1, a pressing arm assembly 2, and a configuration fixture assembly 3 for placing the first workpiece 4 and the second workpiece 5 connected to each other. The configuration clamp body assembly 3 comprises a clamp body 31 and an adjusting piece 32, a positioning channel 311 for accommodating a first workpiece 4 is formed in the clamp body 31, the positioning channel 311 axially penetrates through the clamp body 31, the adjusting piece 32 is movably connected to the end portion of the positioning channel 311, the adjusting piece 32 abuts against one end of the first workpiece 4, the adjusting piece 32 can adjust the position of the first workpiece 4 in the positioning channel 311, a second workpiece 5 is arranged at one end, far away from the adjusting piece 32, of the clamp body 31, the other end of the first workpiece 4 is connected to the second workpiece 5, the pressure arm assembly 2 is connected with the driving assembly 1, and the driving assembly 1 can drive the pressure arm assembly 2 to swing so as to loosen or press the joint of the first workpiece 4 and the second workpiece 5.

According to the utility model, the first workpiece 4 and the second workpiece 5 are welded and connected to form a turbocharger connecting piece, one end of the first workpiece 4 abuts against the adjusting piece 32, the other end of the first workpiece 4 extends to the outside of the positioning channel 311 and is connected with the second workpiece 5, the height of the part, exposed out of the positioning channel 311, of the first workpiece 4 can be adjusted by changing the position of the adjusting piece 32 in the positioning channel 311 so as to adapt to the second workpieces 5 compatible with different models, the driving assembly 1 drives the pressing arm assembly 2 to press the first workpiece 4 and the second workpiece 5, the pressing force can be ensured, the manual operation is reduced, and the clamping efficiency of the clamp is improved.

As shown in fig. 9, the first workpiece 4 is in the shape of a long column, the first workpiece 4 penetrates through the positioning passage 311, the second workpiece 5 is provided with a hole, one end of the first workpiece 4, which is far away from the adjusting member 32, is arranged in the hole to connect the first workpiece 4 and the second workpiece 5 together, the second workpiece 5 is a bent member, and two ends of the second workpiece 5 are not on the same surface.

As shown in fig. 3 to 4, in an embodiment, the pressure arm assembly 2 includes a pressure arm 20, a pressure plate 21 and a pressure ring 22, the pressure arm 20 is connected to the driving assembly 1, the driving assembly 1 can drive the pressure arm 20 to move, as shown in fig. 3, a is a first direction, B is a second direction, the pressure plate 21 is rotatably connected to the pressure arm 20, the pressure plate 21 can rotate in the first direction, the pressure ring 22 is rotatably connected to the pressure plate 21, the pressure ring 22 can rotate in the second direction, the rotation directions of the pressure plate 21 and the pressure ring 22 are not the same, so that the pressure ring 22 can rotate in two directions, when the pressure ring 22 is pressed on the first workpiece 4 and the second workpiece 5, the pressure ring 22 can completely adapt to the inclination angles of the two workpieces, and the pressing force of the pressure ring 22 can be distributed along the axial direction, the unbalance of the pressing force caused by the dimension error of the first workpiece 4 or the second workpiece 5, the clamp error and the like is absorbed to the maximum extent.

In an embodiment, the pressure arm assembly 2 further includes a first pin shaft 24 and a second pin shaft 25, the pressure arm 20 is provided with a transfer block 23, the transfer block 23 is provided with a limit groove 231 for accommodating an end portion of the pressure plate 21, a connection position of the pressure plate 21 is located by the limit groove 231, the first pin shaft 24 can pass through the transfer block 23 and is connected with the pressure plate 21 in the limit groove 231, the pressure arm 20 and the pressure plate 21 are connected by the first pin shaft 24, a gap is formed in the limit groove 231 except for the end portion of the pressure plate 21, due to the limit of the limit groove 231 on the end portion of the pressure plate 21, the pressure plate 21 can rotate within a certain range by using the first pin shaft 24 as an axis along a first direction, and a rotation angle of the pressure plate 21 is small.

The whole Y style of calligraphy structure that is of clamp plate 21, keeping away from of clamp plate 21 the one end of adapter block 23 is provided with the arc breach, clamping ring 22 sets up in the arc breach, second round pin axle 25 is connected clamping ring 22 with the arc breach, preferably, the direction of installation perpendicular to of second round pin axle 25 the direction of installation of first round pin axle 24, second round pin axle 25 sets up on two tip of arc breach, in the arc breach clamping plate 21 with clamping ring 22 is through two second round pin axle 25 is connected, along the second direction, clamping ring 22 can with second round pin axle 25 is rotatory for the axis circumference.

In an embodiment, the pressing ring 22 is provided with a chamfer 221, two ends of the second workpiece 5 are not on the same surface and have an inclined slope, and when the pressing ring 22 is pressed on the first workpiece 4 and the second workpiece 5, the interference and collision between the pressing ring 22 and the second workpiece 5 are avoided through the chamfer 221.

As shown in fig. 3, in an embodiment, a pressing arm support 26 and a pressing arm connecting plate 27 are mounted on the driving assembly 1, one end of the pressing arm connecting plate 27 is connected to the pressing arm support 26 through a first hinge pin 28, the other end of the pressing arm connecting plate 27 is connected to the pressing arm 20 through a second hinge pin 29, when the driving assembly 1 drives the pressing arm assembly 2 to swing, the pressing arm 20 rotates around the first hinge pin 28, and the pressing arm 20 and the pressing arm connecting plate 27 rotate relatively through the second hinge pin 29.

As shown in fig. 3, in an embodiment, the driving assembly 1 includes a clamping cylinder 11 and a cylinder joint 12, the cylinder joint 12 is connected to a telescopic end of the clamping cylinder 11, the cylinder joint 12 is connected to the pressing arm 20 of the pressing arm assembly 2 through a third hinge pin 13, and the clamping cylinder 11 provides a clamping force, so as to ensure reliable clamping and improve clamping efficiency. Preferably, the third hinge pin 13 is connected to an end of the pressing arm 20, and the second hinge pin 29 is connected to a middle portion of the pressing arm 20.

When the clamping cylinder 11 drives the pressing arm 20 to move, the pressing arm support seat 26 is a supporting point of the pressing arm 20, the telescopic end of the clamping cylinder 11, the pressing arm 20, the pressing arm connecting plate 27 and the pressing arm support seat 26 form a link mechanism, the pressing arm support seat 26 is fixedly connected to the clamping cylinder 11 and is kept still, when the telescopic end of the clamping cylinder 11 retracts, the end portion of the pressing arm 20 is driven to move downwards along with the connection of the cylinder joint 12 and the third hinge pin 13, so that the pressing arm connecting plate 27 is driven to rotate around the first hinge pin 28, the pressing arm 20 is tilted, the pressing plate 21 is tilted and tilted upwards, and the pressing ring 22 is far away from the second workpiece 5.

When the telescopic end of the clamping cylinder 11 extends out, the link mechanism drives the pressing arm 20 to be gradually flattened, finally, the pressing ring 22 is pressed at the joint of the first workpiece 4 and the second workpiece 5, wherein the pressing plate 21 can be rotated by a certain angle along the first pin shaft 24, the pressing ring 22 can be rotated by a certain angle along the second pin shaft 25, the pressing force of the pressing ring 22 is distributed along the axial direction, the pressing force caused by the size error and the clamp error is eliminated to the maximum extent, and the clamping of the workpieces is completed.

As shown in fig. 5 to 6, in an embodiment, the configuration fixture body assembly 3 further includes an arm pressing limiting block 33 installed on the fixture body 31, the transfer block 23 is connected to the lower surface of the arm pressing 20, an avoiding groove 331 is provided on the arm pressing limiting block 33, the arm pressing assembly 2 is in a pressing state, the transfer block 23 abuts against the avoiding groove 331 in the pressing process of the pressing ring 22 pressing down, the pressing arm 20 is guided, the accuracy of the position of the pressing arm 20 is guaranteed, and the pressing ring 22 is prevented from being pressed to have an error.

In an embodiment, the configuration fixture body assembly 3 further includes a first configuration limiting block 34 mounted on the fixture body 31, an accommodating groove 341 is provided on the first configuration limiting block 34, the accommodating groove 341 is used for accommodating an end of the second workpiece 5 far away from the first workpiece 4, the accommodating groove 341 is a profile groove, and the type of the workpiece is identified while the second workpiece 5 is supported and positioned, so as to prevent misloading. The two ends of the second workpiece 5 are not on the same surface, the end of the second workpiece 5 connected with the first workpiece 4 is lower, the end of the second workpiece 5 accommodated in the accommodating groove 341 is higher, and the second workpiece 5 is limited and supported by the accommodating groove 341 on the first configuration limiting block 34.

As shown in fig. 7 to 8, in another embodiment, the configuration clamp body assembly 3 further includes a second configuration limiting block 35, the second configuration limiting block 35 includes a horizontal portion 351 and a vertical portion 352, the vertical portion 352 is connected to the first configuration limiting block 34, a waist hole is provided on the vertical portion 352, the installation position of the vertical portion 352 on the first configuration limiting block 34 can be adjusted up and down through the waist hole, so as to change the height of the horizontal portion 351, and the installation position of the vertical portion 352 is adjusted according to the height of the second workpiece 5. One end of the horizontal part 351, which is far away from the vertical part 352, abuts against the upper part of the second workpiece 5, the second workpiece 5 is supported on the first configuration limiting block 34, the upper part of the second workpiece 5 abuts against the horizontal part 351, the horizontal part 351 can identify the second workpieces 5 with different heights, the mistaken assembly is prevented, and the device is suitable for the second workpieces 5 with different models and different heights.

The welding fixture disclosed by the utility model can be compatible with clamping and welding of turbocharger connecting pieces of different models, and is provided with a mistake-proofing structure, so that different parts are prevented from being mounted in a mixed mode. The universality of the welding fixture and the laser welding equipment is improved on the premise of preventing wrong clamping, and the use cost of the laser welding equipment is reduced.

In one embodiment, as shown in fig. 6, the adjusting member 32 is an adjusting nut, the end of the positioning channel 311 is provided with an internal thread, the adjusting member 32 is screwed into the positioning channel 311, and the position of the first workpiece 4 can be adjusted by screwing in or out the adjusting member 32. A buffer pad 36 is arranged between the adjusting piece 32 and the first workpiece 4, and when the pressing ring 22 is pressed downwards, buffer force is provided for the first workpiece 4, so that the first workpiece 4 and the adjusting piece 32 are prevented from being damaged due to collision.

In another aspect, an embodiment of the present invention provides a laser welding apparatus including the welding jig as described above. And clamping the first workpiece 4 and the second workpiece 5 through the welding fixture, welding by the laser welding equipment, and connecting the first workpiece 4 and the second workpiece 5 in a welding manner.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A welding fixture is characterized by comprising a driving assembly, a pressing arm assembly and a configuration fixture body assembly, wherein the configuration fixture body assembly is used for placing a first workpiece and a second workpiece which are connected;

the configuration fixture body assembly comprises a fixture body and an adjusting piece, a positioning channel used for containing a first workpiece is formed inside the fixture body, the positioning channel axially penetrates through the fixture body, the adjusting piece is movably connected to the end portion of the positioning channel, the adjusting piece abuts against one end of the first workpiece, the fixture body is far away from one end of the adjusting piece to place a second workpiece, and the driving assembly can drive the pressing arm assembly to swing so that the pressing arm assembly is pressed at the joint of the first workpiece and the second workpiece or the first workpiece and the second workpiece are loosened.

2. The welding jig of claim 1 wherein the pressure arm assembly comprises a pressure arm, a pressure plate and a pressure ring, the pressure arm is connected to the drive assembly, the pressure plate is rotatably connected to the pressure arm, the pressure ring is rotatably connected to the pressure plate, and the pressure plate and the pressure ring are not in the same rotational direction.

3. The welding fixture of claim 2, wherein the pressure arm assembly further comprises a first pin and a second pin, wherein the pressure arm is provided with a transfer block, the transfer block is provided with a limiting groove for accommodating an end of the pressure plate, and the first pin passes through the transfer block and is connected with the pressure plate in the limiting groove;

the pressing plate is provided with an arc-shaped notch at one end far away from the adapter block, the pressing ring is arranged in the arc-shaped notch, and the second pin shaft is connected with the pressing ring and the arc-shaped notch.

4. The welding jig of claim 2, wherein the driving assembly is provided with a press arm support and a press arm connecting plate, one end of the press arm connecting plate is connected to the press arm support through a first hinge pin, the other end of the press arm connecting plate is connected to the press arm through a second hinge pin, and the press arm rotates around the first hinge pin when the press arm assembly swings.

5. The welding fixture of claim 3, wherein the configuration fixture assembly further comprises a pressing arm limiting block mounted on the fixture body, an avoiding groove is formed in the pressing arm limiting block, and the adapter block abuts against the avoiding groove when the pressing arm assembly is in a pressing state.

6. The welding fixture of claim 1, wherein the drive assembly comprises a clamp cylinder and a cylinder head, the cylinder head coupled to a telescoping end of the clamp cylinder, the cylinder head coupled to the press arm assembly via a third hinge pin.

7. The welding fixture of claim 1, wherein the configuration fixture body assembly further comprises a first configuration limiting block mounted on the fixture body, the first configuration limiting block having a receiving slot disposed thereon, the receiving slot configured to receive an end of the second workpiece distal from the first workpiece.

8. The welding jig of claim 7, wherein the configuration jig body assembly further comprises a second configuration limiting block, the second configuration limiting block comprises a horizontal portion and a vertical portion, the vertical portion is connected to the first configuration limiting block, a waist hole is formed in the vertical portion, and one end of the horizontal portion, which is far away from the vertical portion, abuts against the upper side of a second workpiece.

9. The welding fixture of claim 1, wherein the adjustment member is threaded into the positioning channel, and a cushion is disposed between the adjustment member and the first workpiece.

10. The welding fixture of claim 2, wherein the clamping ring is provided with a chamfer.

11. A laser welding apparatus comprising the welding jig of any one of claims 1 to 10.