Robot welding jig capable of improving production efficiency

Abstract

The utility model discloses a robot welding jig capable of improving production efficiency, and relates to the technical field of robot welding, the robot welding jig comprises a base located on one side of a welding robot, a positioning plate for placing a workpiece is arranged above the base, and mounting frames are slidably arranged at the two ends, away from the positioning plate, of the base; a clamping plate for fixing a workpiece is arranged on the side, close to the positioning plate, of the mounting frame, and a first driving part for driving the clamping plate to rotate is arranged on the side, away from the clamping plate, of the mounting frame. The mounting frames get close to each other to enable the clamping plates to fix the workpiece on the positioning plate, the first driving part drives the clamping plates to synchronously rotate in the same direction to turn over the workpiece, the welding robot can directly turn over the workpiece to continue welding after welding the front face of the workpiece, and the welding efficiency of the welding robot is improved.

Description

Technical Field

[0001] This application relates to the field of robotic welding technology, and in particular to robotic welding fixtures for improving production efficiency. Background Technology

[0002] Welding robots are industrial robots that perform welding, cutting, and spraying. According to the International Organization for Standardization (ISO) definition of industrial robots as standard welding robots, an industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes, used in industrial automation. To adapt to different applications, the mechanical interface of the robot's last axis, typically a connecting flange, can be fitted with different tools or end effectors. Welding robots are industrial robots with welding clamps or welding torches mounted on the flange of their last axis, enabling them to perform welding, cutting, or thermal spraying.

[0003] Regarding the aforementioned technologies, the inventors believe that when welding workpieces, the welding robot can only weld the surface of the workpiece after it is fixed in place, and cannot automatically expose the back of the workpiece for welding. The workpiece needs to be flipped over and fixed manually, which results in low welding efficiency. Utility Model Content

[0004] The purpose of this application is to provide a robotic welding fixture that improves production efficiency, thereby addressing the problem that when welding workpieces are being welded, the welding robot can only weld the surface of the workpiece after it is fixed in place, and cannot expose the back of the workpiece for welding.

[0005] The robotic welding fixture for improving production efficiency provided in this application adopts the following technical solution:

[0006] A robotic welding fixture for improving production efficiency includes a base located on one side of a welding robot, a positioning plate for placing workpieces is provided above the base, mounting brackets are slidably provided at both ends of the base away from the positioning plate, a clamping plate for fixing workpieces is provided on the side of the mounting brackets close to the positioning plate, and a drive component for driving the clamping plate to rotate is provided on the side of the mounting brackets away from the clamping plate.

[0007] By adopting the above technical solution, the mounting frames are brought close together to fix the workpiece on the positioning plate with the clamping plate. The driving component drives the clamping plate to rotate synchronously in the same direction, flipping the workpiece over. This allows the welding robot to directly flip the workpiece over and continue welding after welding the front side of the workpiece, thereby improving the welding efficiency of the welding robot.

[0008] Optionally, the base has grooves at both ends facing the positioning plate, the mounting bracket is slidably connected to the inner wall of the groove, and the base is provided with a driving component 2 to push the mounting bracket to move towards the positioning plate.

[0009] By adopting the above technical solution, the two driving components at both ends of the base synchronously drive the mounting brackets to move closer to each other, so that the clamping plate abuts against the workpiece to fix the workpiece, reducing the shaking of the workpiece during welding and causing misalignment of the weld. After the workpiece is welded, the two driving components drive the mounting brackets to move away from the workpiece with the clamping plate, making it easier to remove the workpiece and put it into the next workpiece to be welded.

[0010] Optionally, the positioning plate has limiting grooves at both ends, and a limiting plate that fits into the limiting grooves is provided below the clamping plate. The limiting plate fits into the side of the workpiece closest to the positioning plate and is located in the limiting groove and is flush with the positioning plate.

[0011] By adopting the above technical solution, when the clamping plate approaches the positioning plate, the limiting plate enters below the workpiece along the inner wall of the limiting groove and fits against the bottom of the workpiece. The limiting plate supports the workpiece and minimizes the possibility of the workpiece detaching from the clamping plate when it moves up with the clamping plate.

[0012] Optionally, the mounting bracket has a guide groove along the height direction, and a mounting block is slidably disposed on the inner side wall of the guide groove. The side of the mounting block away from the clamping plate is fixedly connected to a driving component. A screw threadedly connected to the mounting block is rotatably disposed in the guide groove. A driving component three for driving the screw to rotate is disposed on one side of the mounting bracket. A slide rod slidably connected to the mounting block is disposed on the inner side wall of the guide groove away from the screw.

[0013] By adopting the above technical solution, the three drive screws on the two mounting brackets rotate synchronously, causing the mounting blocks on the two mounting brackets to rise synchronously. This allows the clamping plate to carry the workpiece away from the positioning plate, making it easier for the drive component to drive the clamping plate to flip the workpiece. This minimizes the possibility of friction between the workpiece and the positioning plate during flipping, which could cause wear to the workpiece. The sliding rod supports the mounting block away from the screw, reducing the possibility of the screw getting stuck due to the tilt of the mounting block.

[0014] Optionally, a gripper is rotatably provided on the side of the clamping plate away from the limiting plate, and a drive cylinder for driving the gripper to rotate is provided on the side of the clamping plate near the mounting block, wherein the drive rod of the drive cylinder is hinged to the gripper.

[0015] By adopting the above technical solution, the clamping jaws on the clamping plate are driven by the driving cylinder to rotate and approach the workpiece, thereby further fixing the workpiece between the limiting plate and the clamping jaws, and preventing the workpiece from falling off the clamping plate when flipping over, which would affect the welding of the workpiece.

[0016] Optionally, a rubber pad that abuts against the workpiece is provided on the side of the gripper near the limiting plate.

[0017] By adopting the above technical solution, a rubber pad is set on the side of the gripper close to the limiting plate. When the gripper is close to the workpiece, it abuts against the side wall of the workpiece, increasing the friction between the gripper and the workpiece, and further reducing the possibility of the workpiece detaching from the clamping plate.

[0018] Optionally, the inner wall of the limiting groove is provided with an arc surface facing the limiting plate.

[0019] By adopting the above technical solution, an arc surface is provided on the inner wall of the limiting groove facing the limiting plate, so that the limiting plate can enter the limiting groove through the arc surface when it moves towards the limiting groove, reducing the possibility of the limiting plate colliding with the side wall of the positioning plate located on one side of the limiting groove, and making it easier for the limiting plate to enter under the workpiece along the inner wall of the limiting groove.

[0020] Optionally, the positioning plate is provided with a groove above the limiting groove, and the inner sidewall of the groove extends into the limiting groove in an arc shape.

[0021] By adopting the above technical solution, a groove is opened above the positioning plate and the inner wall of the groove extends into the positioning groove in an arc shape, which reduces the friction experienced by the positioning plate when it leaves the positioning groove, and makes it easier for the clamping plate to lift the workpiece and flip it over.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The mounting brackets move close together to fix the workpiece on the positioning plate with the clamping plate. The driving component drives the clamping plate to rotate synchronously in the same direction, flipping the workpiece over. This allows the welding robot to directly flip the workpiece over after welding the front side, thus improving the welding efficiency of the welding robot.

[0024] 2. The three drive screws on the two mounting brackets rotate synchronously, causing the mounting blocks on the two mounting brackets to rise synchronously. This allows the clamping plate to carry the workpiece away from the positioning plate, making it easier for the drive component to drive the clamping plate to flip the workpiece. This minimizes the possibility of friction between the workpiece and the positioning plate during flipping, which could cause wear to the workpiece.

[0025] 3. The clamping jaws on the clamping plate are driven by the drive cylinder to rotate and approach the workpiece to further fix the workpiece. The workpiece is fixed between the limit plate and the clamping jaws to prevent the workpiece from falling off the clamping plate when flipping over, which would affect the welding of the workpiece. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of a robotic welding fixture designed to improve production efficiency.

[0027] Figure 2 This is a partial cross-sectional view of a robotic welding fixture designed to improve production efficiency.

[0028] In the diagram, 1. Base; 11. Slide groove; 12. Drive component two; 2. Clamping plate; 21. Limiting plate; 22. Gripper; 221. Rubber pad; 23. Drive cylinder; 3. Mounting bracket; 31. Guide groove; 311. Screw; 312. Slide rod; 32. Mounting block; 33. Drive component three; 4. Drive component one; 5. Positioning plate; 51. Limiting groove; 511. Arc surface; 512. Groove; 6. Workpiece. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0030] Robotic welding fixtures to improve production efficiency, refer to Figure 1 The system includes a base 1 located on one side of the welding robot, a positioning plate 5 fixed to the base 1 with bolts, a workpiece 6 placed on the positioning plate 5, mounting brackets 3 slidably set at both ends of the base 1, a guide groove 31 opened in the height direction of the mounting brackets 3, a mounting block 32 slidably set in the guide groove 31, and a driving component 4 fixed to the side of the mounting block 32 away from the positioning plate 5 with bolts. The driving component 4 is a stepper motor electrically connected to the power supply. The driving end of the driving component 4 passes through the mounting block 32 and is fixed to the clamping plate 2 with bolts at the end facing the positioning plate 5. After the clamping plate 2 abuts against and fixes the workpiece 6, the driving component 4 drives the clamping plate 2 to rotate synchronously in the same direction, flipping the workpiece 6 so that the welding robot can directly flip the workpiece 6 after welding the front side, and continue welding.

[0031] Reference Figure 1 The base 1 has grooves 11 at both ends facing the positioning plate 5. The slider is fixed to the bottom of the mounting frame 3 with bolts, and the mounting frame 3 is slidably connected to the inner wall of the groove 11. The second driving component 12 is fixed to both ends of the base 1 with bolts. The second driving component 12 is an electric cylinder that is electrically connected to the power supply. The driving end of the second driving component 12 is engaged with the mounting frame 3. The second driving component 12 synchronously drives the mounting frames 3 at both ends of the base 1 to move closer to each other, so that the clamping plate 2 abuts against the workpiece 6 and fixes the workpiece 6, reducing the shaking of the workpiece 6 during welding and causing the weld to misalign.

[0032] Reference Figure 1 and Figure 2The mounting bracket 3 is rotatably connected to the screw 311 via a bearing in the guide groove 31 of the mounting bracket 3. The screw 311 is threadedly connected to the mounting block 32 and is fixed to the drive component 33 above the mounting bracket 3 by bolts. The drive component 33 is a servo motor electrically connected to the power supply. The drive component 33 on the two mounting brackets 3 drives the screw 311 to rotate synchronously, so that the mounting blocks 32 on the two mounting brackets 3 rise synchronously, so that the clamping plate 2 carries the workpiece 6 away from the positioning plate 5, making it easier for the drive component 4 to drive the clamping plate 2 to flip the workpiece 6. A slide rod 312 that is slidably connected to the mounting block 32 is fixed with bolts on the inner side wall of the guide groove 31 away from the screw 311 to support the mounting block 32.

[0033] Reference Figure 1 and Figure 2 Limiting grooves 51 are provided at both ends of the positioning plate 5. A limiting plate 21 is fixed to the bottom of the clamping plate 2 with bolts. The limiting plate 21 is located in the limiting groove 51 and is flush with the positioning plate 5. When the clamping plate 2 is close to the positioning plate 5, the limiting plate 21 enters the bottom of the workpiece 6 along the inner wall of the limiting groove 51 and fits against the bottom of the workpiece 6. The limiting plate 21 supports the workpiece 6 and tries to prevent the workpiece 6 from falling off when it moves up with the clamping plate 2. An arc surface 511 is provided on the inner wall of the limiting groove 51 facing the limiting plate 21 to facilitate the limiting plate 21 to enter the bottom of the workpiece 6 along the inner wall of the limiting groove 51. A groove 512 is provided on the positioning plate 5 above the limiting groove 51. The inner wall of the groove 512 is arc-shaped and extends towards the limiting groove 51 to reduce the friction experienced by the limiting plate 21 when it leaves the limiting groove 51.

[0034] Reference Figure 1 and Figure 2 The clamping plate 2 is rotatably connected to the gripper 22 via a rotating shaft on the side away from the limiting plate 21. The clamping plate 2 is hinged to the cylinder body of the drive cylinder 23 on the side near the mounting block 32. The drive rod of the drive cylinder 23 is hinged to the gripper. The drive cylinder 23, which is electrically connected to the power supply, drives the gripper 22 to rotate and approach the workpiece 6 to further fix the workpiece 6 and prevent the workpiece 6 from detaching from the clamping plate 2 when flipping. A rubber pad 221 is attached to the side of the gripper 22 near the limiting plate 21. When the gripper 22 approaches the workpiece 6, it abuts against the side wall of the workpiece 6 to increase the friction between the gripper 22 and the workpiece 6 and prevent the workpiece 6 from detaching from the clamping plate 2.

[0035] The implementation principle of this application embodiment is as follows:

[0036] In actual operation, the workpiece 6 is placed on the positioning plate 5. The driving components 12 at both ends of the base 1 synchronously drive the mounting frame 3 to approach the positioning frame, so that the clamping plate 2 abuts against the side wall of the workpiece 6. The limiting plate 21 enters below the workpiece 6 along the positioning groove of the positioning plate 5. The grippers 22 on the clamping plate 2 approach the workpiece 6 and clamp and fix the workpiece 6, and the welding robot welds the workpiece 6. Then, the driving components 33 on the two mounting frames 3 synchronously drive the screw 311 to rotate, so that the mounting block 32 carries the clamping plate 2 upward. The workpiece 6 between the clamping plates 2 moves away from the positioning plate 5. The driving component 4 synchronously drives the clamping plate 2 to rotate, so that the workpiece 6 flips over. Then the clamping plate 2 falls back onto the positioning plate 5, and the welding robot continues to weld the back of the workpiece 6. The driving component 4 drives the clamping plate 2 to rotate synchronously in the same direction to flip the workpiece 6 over, so that after the welding robot finishes welding the front of the workpiece 6, it can directly flip it over to continue welding, thus improving the welding efficiency of the welding robot.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A robot welding fixture for improving production efficiency, characterized by: The application relates to a welding robot device, which comprises a base (1) located on one side of the welding robot, a positioning plate (5) for placing a workpiece (6) arranged above the base (1), mounting racks (3) slidingly arranged at two ends of the base (1) away from the positioning plate (5), a clamping plate (2) for fixing the workpiece (6) arranged at one side of the mounting rack (3) close to the positioning plate (5), and a driving member one (4) for driving the clamping plate (2) to rotate arranged at one side of the mounting rack (3) away from the clamping plate (2).

2. The robotically welded fixture of claim 1, wherein: Sliding grooves (11) are formed at two ends of the base (1) towards the positioning plate (5), the mounting rack (3) is slidingly connected with the inner side wall of the sliding groove (11), and the base (1) is provided with a driving member two (12) for pushing the mounting rack (3) to move towards the positioning plate (5).

3. The robotically welded fixture of claim 2, wherein: Limiting grooves (51) are formed at two ends of the positioning plate (5), a limiting plate (21) is arranged below the clamping plate (2) and is in close contact with the limiting groove (51), the limiting plate (21) is in close contact with one side of the workpiece (6) close to the positioning plate (5), and the limiting plate (21) is flush with the positioning plate (5) in the limiting groove (51).

4. The robotically welded fixture of claim 3, wherein: A guide groove (31) is formed in the mounting rack (3) along the height direction, a mounting block (32) is slidingly arranged in the inner side wall of the guide groove (31), the mounting block (32) is fixedly connected with the driving member one (4) at one side away from the clamping plate (2), a screw rod (311) is rotatably arranged in the guide groove (31) and is in threaded connection with the mounting block (32), one side of the mounting rack (3) is provided with a driving member three (33) for driving the screw rod (311) to rotate, and the inner side wall of the guide groove (31) is provided with a sliding rod (312) in sliding connection with the mounting block (32) at a position away from the screw rod (311).

5. The robotically welded fixture of claim 4, wherein: A clamping jaw (22) is rotatably arranged at one side of the clamping plate (2) away from the limiting plate (21), and a driving cylinder (23) is arranged at one side of the clamping plate (2) close to the mounting block (32) and drives the clamping jaw (22) to rotate, and the driving rod of the driving cylinder (23) is hinged with the clamping jaw (22).

6. The robotically welded fixture of claim 5, wherein: A rubber pad (221) is arranged at one side of the clamping jaw (22) close to the limiting plate (21) and is in abutment with the workpiece (6).

7. The robotically welded fixture of claim 3, wherein: An arc surface (511) is arranged at a position of the inner side wall of the limiting groove (51) towards the limiting plate (21).

8. The robotically welded fixture of claim 7, wherein: A recess (512) is arranged above the limiting groove (51) of the positioning plate (5), and the inner side wall of the recess (512) is arranged in an arc shape and extends towards the limiting groove (51).

Images