Motorcycle frame welding robot with positioner

Abstract

The utility model provides a motorcycle frame welding robot with a positioner. The motorcycle frame welding robot comprises a welding supporting bottom plate, a welding robot body and the positioner. A winding connecting shaft is installed at one corner of the welding supporting bottom plate, a sound insulation adsorption roller shutter is connected to the surface of the winding connecting shaft in a winding mode, and the sound insulation adsorption roller shutter is composed of a particle adsorption net face, a double-layer activated carbon net face and a rubber sound insulation pad. The double-layer activated carbon net face is located between the rubber sound insulation pad and the particle adsorption net face, and the particle adsorption net face is located on the inner side face of the rubber sound insulation pad. The winding connecting shaft is installed at one corner of the welding supporting bottom plate, the sound insulation adsorption roller shutter is connected to the surface of the winding connecting shaft in a winding mode, the unfolded sound insulation adsorption roller shutter can form a fence structure, a welding area can be enclosed, overflowing of peculiar smell in the welding process is reduced, meanwhile, noise is reduced to a certain degree, and the welding quality is improved. The environment of a welding workshop is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of welding robot technology, and relates to a motorcycle frame welding robot with a positioner. Background Technology

[0002] The motorcycle frame assembly includes structures such as the head tube, main beam tube, front support tube, engine underbody tube, lower connecting tube, and rear tail frame. These components are assembled by welding. In existing technologies, welding robots are used for welding, and positioners are used to adjust the orientation. For example, a welding robot disclosed in patent number CN201920526372.6 automates the welding process, has six degrees of freedom in space, and provides precise, reliable, high-quality, and efficient welding. When used with a positioner, it achieves good welding results. However, in actual use, the welding environment is relatively open, and the odor generated during welding can spread from all sides to the surrounding area of ​​the welding workshop. Therefore, we have designed a motorcycle frame welding robot with a positioner. Summary of the Invention

[0003] The purpose of this invention is to provide a motorcycle frame welding robot with a positioner to solve the problems mentioned in the background art.

[0004] The objective of this utility model can be achieved through the following technical solution: A motorcycle frame welding robot with a positioner, comprising a welding support base plate, a welding robot, and a positioner. The welding robot includes a robot support base, a rotary drive unit, a robotic arm, a robotic arm drive unit, a shaft joint drive unit, a telescopic cylinder, a swing arm, a shift fork, and a laser welding head. The robot support base is fastened to the top of the welding support base plate by bolts. The rotary drive unit is assembled on the top of the robot support base. The top of the rotary drive unit is connected to the robotic arm drive unit. The output shaft of the robotic arm drive unit is bolted to the robotic arm. The top of the robotic arm is connected to the shaft joint drive unit. A cylinder connecting seat is installed at the output end of the shaft joint drive unit. The telescopic cylinder is connected to the shaft joint drive unit through the cylinder connecting seat. The output end of the telescopic cylinder is bolted to the swing arm. The swing arm is connected to the shift fork. The laser welding head is assembled at the screw hole of the shift fork by back plate bolts.

[0005] The positioner includes two I-shaped support bases, two AC motors, and two rotating connecting discs. The two I-shaped support bases are welded to the top of the welded support base plate. The two AC motors are bolted to the corresponding I-shaped support bases through their housings. The two rotating connecting discs are mounted on the output shafts of the corresponding AC motors through bushings.

[0006] A winding connecting shaft is installed at one corner of the welded support base plate. A sound-absorbing roller shutter is wound around the surface of the winding connecting shaft. The sound-absorbing roller shutter consists of a particle adsorption mesh, a double-layer activated carbon mesh, and a rubber sound insulation pad. The double-layer activated carbon mesh is located between the rubber sound insulation pad and the particle adsorption mesh, and the particle adsorption mesh is located on the inner side of the rubber sound insulation pad.

[0007] In the aforementioned motorcycle frame welding robot with a positioner, a miniature rotating part is provided on the side of the shift fork, and a spot welding cleaning head is provided at the bottom end of the miniature rotating part. A cleaning cap is movably installed inside the spot welding cleaning head. The purpose of this arrangement is to use the rotation of the miniature rotating part to drive the cleaning cap inside the spot welding cleaning head to rotate, thereby cleaning the welding point, preventing welding spots from appearing in the welding area, and improving the overall aesthetics.

[0008] In the aforementioned motorcycle frame welding robot with a positioner, each of the two rotating connecting plates has a tooling clamping plate on one side. The two tooling clamping plates support a motorcycle frame fixture, and the top of the motorcycle frame fixture has multiple frame support brackets. This arrangement facilitates the mounting of the motorcycle frame on the tooling clamping plates. The frame support brackets, in conjunction with bolts and corresponding frame clamps, achieve limited and fixed positioning of the motorcycle frame, ensuring stability during position changes.

[0009] In the aforementioned motorcycle frame welding robot with a positioner, insertion holes are provided at the remaining three corners of the welding support base plate. Each of these three insertion holes contains a vertical rod, which is housed at the bottom of the motorcycle frame fixture. The length of each vertical rod is equal to the length of the winding connecting shaft, and a roller shutter hook is provided in the middle of each vertical rod. This arrangement ensures that the welding support base plate has connecting elements on all four sides, facilitating the sequential pulling of the sound-absorbing roller shutter through the roller shutter hooks on the three vertical rods. The shutter can then return to the winding connecting shaft, allowing the unfolded sound-absorbing roller shutter to form a barrier structure that encloses the welding area, reducing the leakage of odors during welding and, to some extent, lowering noise levels.

[0010] In the aforementioned motorcycle frame welding robot with a positioner, the rotary drive unit, the robotic arm drive unit, and the joint drive unit are all driven by servo motors. This arrangement aims to utilize servo motors as drive components, which offer excellent electrical controllability, facilitate the coordination of motion deviations, and simultaneously ensure good drive accuracy while reducing motion errors.

[0011] Compared with existing technologies, the advantages of this utility model of a motorcycle frame welding robot with a positioner are as follows: By installing a winding connecting shaft at one corner of the welding support base plate, and wrapping a sound-absorbing roller shutter around the surface of the winding connecting shaft, the sound-absorbing roller shutter is composed of a particle adsorption mesh, a double-layer activated carbon mesh, and a rubber sound-absorbing pad. Combined with three uprights, the unfolded sound-absorbing roller shutter forms a enclosure structure that can enclose the welding area. The composite structure composed of the particle adsorption mesh, the double-layer activated carbon mesh, and the rubber sound-absorbing pad can adsorb welding particles, purify welding odors, and absorb welding noise. This not only reduces the leakage of odors during welding but also reduces noise to a certain extent, ensuring a safe environment in the welding workshop. Furthermore, by setting a miniature rotating part on the side of the shift fork, and a spot welding cleaning head at the bottom of the miniature rotating part, with a cleaning cap movable inside the spot welding cleaning head, the rotation of the miniature rotating part drives the cleaning cap inside the spot welding cleaning head to rotate, cleaning the welding points, preventing welding spots from appearing in the welding area, and improving the overall aesthetics of the welded parts. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a motorcycle frame welding robot with a positioner according to this utility model.

[0013] Figure 2 This is a three-dimensional structural schematic diagram of the rotary drive unit of a motorcycle frame welding robot with a positioner according to this utility model.

[0014] Figure 3 This is a schematic diagram of the composition of a sound-insulating adsorption roller shutter for a motorcycle frame welding robot with a positioner according to this utility model.

[0015] Figure 4 This is a schematic diagram of the spot welding cleaning head of a motorcycle frame welding robot with a positioner according to this utility model.

[0016] In the diagram: 1. Welding support base plate; 2. Robot support seat; 3. Rotary drive unit; 4. Robotic arm; 5. I-beam support seat; 6. AC motor; 7. Rotating connecting plate; 8. Motorcycle frame tooling; 9. Frame load-bearing bracket; 10. Winding connecting shaft; 11. Sound-insulating adsorption roller shutter; 1101. Particle adsorption mesh; 1102. Double-layer activated carbon mesh; 1103. Rubber sound insulation pad; 12. Insertion hole; 13. Upright pole; 14. Tooling clamping plate; 15. Robotic arm drive unit; 16. Shaft joint drive unit; 17. Cylinder connecting seat; 18. Telescopic cylinder; 19. Swing arm; 20. Shift fork; 21. Laser welding head; 22. Miniature rotating part; 23. Spot welding cleaning head; 24. Cleaning cap. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a motorcycle frame welding robot with a positioner.

[0019] Example 1: The welding robot includes a robot support base 2, a rotary drive unit 3, a robotic arm 4, a robotic arm drive unit 15, a shaft joint drive unit 16, a telescopic cylinder 18, a swing arm 19, a shift fork 20, and a laser welding head 21. The robot support base 2 is fastened to the top of the welding support base plate 1 by bolts. The rotary drive unit 3 is assembled on the top of the robot support base 2. The top of the rotary drive unit 3 is connected to the robotic arm drive unit 15. The output shaft of the robotic arm drive unit 15 is bolted to the robotic arm 4. The top of the robotic arm 4 is connected to the shaft joint drive unit 16. A cylinder connecting seat 17 is installed at the output end of the shaft joint drive unit 16. The telescopic cylinder 18 is connected to the shaft joint drive unit 16 through the cylinder connecting seat 17. The output end of the telescopic cylinder 18 is bolted to the swing arm 19. The swing arm 19 is connected to the shift fork 20. The laser welding head 21 is assembled at the screw hole of the shift fork 20 by back plate bolts.

[0020] Among them, the rotary drive unit 3, the robotic arm drive unit 15 and the axis joint drive unit 16 are all driven by servo motors and can be connected to the PLC system for control.

[0021] Example 2: The positioner includes two I-shaped support bases 5, two AC motors 6, and two rotating connecting discs 7. The two I-shaped support bases 5 are welded to the top of the welded support base plate 1. The two AC motors 6 are bolted to the corresponding I-shaped support bases 5 through their housings. The two rotating connecting discs 7 are installed at the output shafts of the corresponding AC motors 6 through bushings.

[0022] Based on Embodiment 1 and Embodiment 2, a winding connecting shaft 10 is installed at one corner of the welded support base plate 1. The surface of the winding connecting shaft 10 is wrapped with a sound-absorbing roller shutter 11. The sound-absorbing roller shutter 11 is composed of a particle adsorption mesh 1101, a double-layer activated carbon mesh 1102, and a rubber sound insulation pad 1103. The double-layer activated carbon mesh 1102 is located between the rubber sound insulation pad 1103 and the particle adsorption mesh 1101, and the particle adsorption mesh 1101 is located on the inner side of the rubber sound insulation pad 1103.

[0023] Insertion holes 12 are made at the other three corners of the welding support base plate 1. Each of the three insertion holes 12 is equipped with a vertical rod 13. The three vertical rods 13 are stored at the bottom of the motorcycle frame fixture 8. The length of each vertical rod 13 is equal to the length of the winding connecting shaft 10. Each vertical rod 13 is equipped with a roller shutter hook in the middle.

[0024] The above-mentioned design is as follows: the sound-absorbing roller blind 11 is pulled through the roller blind hooks of the three uprights 13 in sequence, and can return to the winding connecting shaft 10. It can be glued or snapped to the winding connecting shaft 10 to ensure firmness. The unfolded sound-absorbing roller blind 11 forms a barrier structure to enclose the welding area, reduce the leakage of odor during the welding process, and reduce noise to a certain extent.

[0025] Furthermore, in order to facilitate cleaning of the welding points and reduce the occurrence of spots at the welding points, a miniature rotating part 22 is provided on the side of the shift fork 20, and a spot welding cleaning head 23 is provided at the bottom end of the miniature rotating part 22. A cleaning cap 24 is movably provided inside the spot welding cleaning head 23.

[0026] Based on Embodiment 2, in order to better install the motorcycle frame and facilitate automated welding operations, tooling clamping plates 14 are provided on one side of each of the two rotating connecting plates 7, and motorcycle frame tooling 8 is provided on the two tooling clamping plates 14. Multiple frame bearing brackets 9 are provided on the top of the motorcycle frame tooling 8.

[0027] In use: The welding robot in this solution is paired with a PLC control cabinet based on existing technology to control the welding robot. For specific control, please refer to the existing technology CN118268779A, which shows a dual-station welding robot and its control system, to achieve efficient welding operation of the welding robot.

[0028] The motorcycle frame to be welded is connected to the motorcycle frame fixture 8. The frame support bracket, bolts, and corresponding frame clamps are used to limit and fix the motorcycle frame. The AC motor 6 has a deceleration control function and is also equipped with a PLC control system of existing technology to realize the ideal processing position and welding speed of the rotating connecting plate 7.

[0029] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A motorcycle frame welding robot with a positioner, comprising a welding support base plate (1), a welding robot, and a positioner, wherein the welding robot comprises a robot support base (2), a rotary drive unit (3), a robotic arm (4), a robotic arm drive unit (15), a shaft joint drive unit (16), a telescopic cylinder (18), a swing arm (19), a shift fork (20), and a laser welding head (21), wherein the robot support base (2) is fastened to the top of the welding support base plate (1) by bolts, and the rotary drive unit (3) is assembled on the top of the robot support base (2), wherein the top of the rotary drive unit (3) is connected to the positioner. The mechanical arm drive unit (15) is connected, the output shaft of the mechanical arm drive unit (15) is bolted to the mechanical arm rod (4), the top end of the mechanical arm rod (4) is connected to the shaft joint drive unit (16), the output end of the shaft joint drive unit (16) is equipped with a cylinder connecting seat (17), the telescopic cylinder (18) is connected to the shaft joint drive unit (16) through the cylinder connecting seat (17), the output end of the telescopic cylinder (18) is bolted to the swing arm (19), the swing arm (19) is connected to the shift fork (20), and the laser welding head (21) is assembled at the screw hole of the shift fork (20) by the back plate bolt; The positioner includes two I-shaped support bases (5), two AC motors (6), and two rotating connecting discs (7). The two I-shaped support bases (5) are welded to the top of the welding support base plate (1). The two AC motors (6) are bolted to the corresponding I-shaped support bases (5) through the housing. The two rotating connecting discs (7) are installed at the output shaft of the corresponding AC motors (6) through bushings. Its features are, A winding connecting shaft (10) is installed at one corner of the welding support base plate (1). A sound-absorbing roller shutter (11) is wound around the surface of the winding connecting shaft (10). The sound-absorbing roller shutter (11) is composed of a particle adsorption mesh (1101), a double-layer activated carbon mesh (1102), and a rubber sound insulation pad (1103). The double-layer activated carbon mesh (1102) is located between the rubber sound insulation pad (1103) and the particle adsorption mesh (1101), and the particle adsorption mesh (1101) is located on the inner side of the rubber sound insulation pad (1103).

2. The motorcycle frame welding robot with a positioner according to claim 1, characterized in that, The side of the shift fork (20) is provided with a micro rotating part (22), and the bottom end of the micro rotating part (22) is provided with a spot welding cleaning head (23). The inside of the spot welding cleaning head (23) is provided with a cleaning cap (24).

3. The motorcycle frame welding robot with a positioner according to claim 1, characterized in that, Each of the two rotating connecting discs (7) is provided with a tooling clamping plate (14) on one side, and the two tooling clamping plates (14) are provided with a motorcycle frame tooling (8). The top of the motorcycle frame tooling (8) is provided with multiple frame bearing brackets (9).

4. The motorcycle frame welding robot with a positioner according to claim 3, characterized in that, The welding support base plate (1) has insertion holes (12) at the other three corners. Each of the three insertion holes (12) has a vertical rod (13) inside. The three vertical rods (13) are stored at the bottom of the motorcycle frame fixture (8).

5. A motorcycle frame welding robot with a positioner according to claim 4, characterized in that, The length of each of the uprights (13) is equal to the length of the winding connecting shaft (10), and each of the uprights (13) is provided with a roller shutter hook in the middle.

6. The motorcycle frame welding robot with a positioner according to claim 1, characterized in that, The rotary drive unit (3), the robotic arm drive unit (15), and the shaft joint drive unit (16) are all driven by servo motors.

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