Self-centering welding device for compounding rim and spoke

Abstract

The utility model discloses a self-centering welding device for compounding a rim and a spoke. The automatic welding device is characterized by comprising a welding base, a head box fixedly installed on the welding base, a tail box installed on the welding base in a sliding mode and arranged opposite to the head box, a welding mechanical arm replacing manpower to weld rims and spokes, and a PLC for achieving automatic welding control. Chucks for fixing a rim and a spoke respectively are rotatably mounted on the head box and the tail box; the head box is further provided with a laser detector used for detecting the circle run-out value of the rim. The spokes and the rims are clamped through the chucks on the head box and the tail box respectively, the PLC controls the tail box to move so that the rims can make contact with the spokes, the welding concentricity of the rims and the spokes can be improved, then the welding mechanical arms are controlled to replace manual work to conduct automatic welding on the rims and the spokes, the welding efficiency is improved, and the labor intensity of workers is reduced. And the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding device technology, specifically to a self-centering welding device for rim and spoke composite welding. Background Technology

[0002] Wheel rims and spokes are key components of a wheel. The rim supports the tire and bears the load, while the spokes transmit power and reinforce the structure. During production, the rim and spokes need to be welded. In existing technologies, the rim and spokes are placed on appropriate tooling and then welded manually. However, the rim and spokes are prone to movement during welding, reducing their concentricity. Furthermore, manual welding increases the labor intensity of workers and reduces welding efficiency. Therefore, a self-centering welding device for composite rim and spokes is proposed to improve welding concentricity through automated welding. Summary of the Invention

[0003] The purpose of this invention is to provide a self-centering welding device for rim and spoke composite assembly in order to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-centering welding device for rim and spoke composite welding, characterized by a welding base, a head box fixedly mounted on the welding base, a tail box slidably mounted on the welding base and positioned opposite to the head box, a welding robotic arm to replace manual welding of the rim and spokes, and a PLC controller for automated welding control; chucks for fixing the rim and spokes are rotatably mounted on the head box and tail box respectively; a laser detector for detecting the circular runout value of the rim is also mounted on the head box.

[0005] Preferably, the chuck includes a pneumatic chuck mounted on the head box and an electric chuck mounted on the tail box.

[0006] Preferably, the pneumatic chuck is also equipped with a support step block that can accommodate wheel spokes of different sizes, and a sensor installed on the support step block to sense the fit and installation of the wheel spokes.

[0007] Preferably, the electric chuck is equipped with a fitting claw that fits against the outer surface of the wheel rim to prevent deformation during wheel rim clamping.

[0008] Preferably, the pneumatic chucks and electric chucks on the head box and tail box are both driven by servo motors to rotate.

[0009] Preferably, the head box is also equipped with a detection bracket for mounting a laser detector and a cylinder mounted on the detection bracket to drive the laser detector.

[0010] Preferably, the welding base is also equipped with a drive source for driving the tail box and a guide rail for guiding the movement of the tail box.

[0011] Preferably, the tail box is equipped with a slider that is compatible with the guide rail.

[0012] The beneficial effects of this utility model are as follows: the chucks on the head box and tail box clamp the spokes and rim respectively, the PLC controller controls the movement of the tail box to make the rim and spokes come into contact, thereby improving the concentricity of the welding of the rim and spokes. Then, the welding robot arm is controlled to replace the manual welding between the rim and spokes, thereby improving the welding efficiency and reducing the labor intensity of workers.

[0013] By using a laser detector to detect the circular runout of the wheel rim before and after welding, the detection rate of defective products can be improved, thus increasing the pass rate of welding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the head box structure of this utility model.

[0016] Figure 3 This is a partial structural schematic diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the tail box structure of this utility model.

[0018] Legend: 1. Welding base; 101. Drive source; 102. Guide rail; 103. Slider; 2. Head box; 3. Tail box; 4. Welding robotic arm; 5. PLC controller; 6. Laser detector; 601. Detection bracket; 602. Cylinder; 7. Pneumatic chuck; 701. Electric chuck; 702. Support step block; 703. Sensor; 704. Fitting jaw. Detailed Implementation

[0019] The following description, in conjunction with the accompanying drawings, further illustrates the self-centering welding device for rim and spoke composite of this utility model.

[0020] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0021] See appendix Figure 1-4As shown in this embodiment, a self-centering welding device for rim and spoke composite welding is characterized by a welding base 1, a head box 2 fixedly mounted on the welding base 1, a tail box 3 slidably mounted on the welding base 1 and opposite to the head box 2, a welding robotic arm 4 for welding the rim and spokes instead of manually, and a PLC controller 5 for automated welding control. The head box 2 and tail box 3 are rotatably mounted with chucks for fixing the rim and spokes respectively. The head box 2 is also equipped with a laser detector 6 for detecting the circular runout value of the rim. The chucks on the head box 2 and tail box 3 clamp the spokes and rim respectively. The PLC controller 5 controls the tail box 3 to move so that the rim and spokes come into contact, thereby improving the concentricity of the rim and spoke welding. Then, the welding robotic arm 4 is controlled to perform automated welding between the rim and spokes instead of manually, thereby improving welding efficiency and reducing the labor intensity of workers. By using the laser detector 6 to detect the circular runout value of the rim before and after welding, the detection of defective products can be improved, increasing the welding pass rate.

[0022] See appendix Figure 1-4 As shown, the chuck includes a pneumatic chuck 7 mounted on the head box 2 and an electric chuck 701 mounted on the tail box 3; the pneumatic chuck 7 is also equipped with a support step block 702 that can accommodate wheel spokes of different sizes, and a sensor 703 mounted on the support step block 702 to sense the fit of the wheel spokes; the electric chuck 701 is equipped with a fitting jaw 704 that fits against the outer surface of the wheel rim to prevent deformation during clamping; the pneumatic chucks on the head box 2 and tail box 3 Both the pneumatic chuck 7 and the electric chuck 701 are driven to rotate by a servo motor. By utilizing the support step block 702, the pneumatic chuck 7 can accommodate wheel spokes of different sizes, expanding its range of applications. At the same time, a sensor 703 installed on the support step block 702 senses whether the wheel spokes are in contact with the support step block 702, thereby improving the stability of the wheel spoke installation. The electric chuck 701 is equipped with a contacting claw 704 that contacts the outer surface of the wheel rim, thereby preventing deformation of the wheel rim during clamping.

[0023] See appendix Figure 2-3 As shown, the head box 2 is also equipped with a detection bracket 601 for mounting the laser detector 6 and a cylinder 602 mounted on the detection bracket 601 to push the laser detector 6 to move; the laser detector 6 is pushed to the detection area by the cylinder 602 to facilitate the detection of the laser detector 6.

[0024] See appendix Figure 1As shown, the welding base 1 is also equipped with a drive source 101 for driving the tail box 3 and a guide rail 102 for guiding the movement of the tail box 3; the tail box 3 is equipped with a slider 103 adapted to the guide rail 102; the drive source 101 drives the tail box 3 to move along the guide rail 102, thereby facilitating the docking of the wheel rim clamped on the tail box 3 with the wheel spoke on the head box 2, thereby improving the concentricity of the docking; the guide rail 102 guides the movement of the tail box 3.

[0025] The working process of this utility model is as follows: First, the wheel spokes to be welded are installed on the support step block 702 of the pneumatic chuck 7. The sensor 703 on the support step block 702 senses whether the wheel spokes are in close contact with the support step block 702. After sensing, it sends a signal to the PLC controller 5. The PLC controller 5 controls the pneumatic chuck 7 to clamp the wheel spokes. The wheel rim is then installed on the electric chuck 701. The electric chuck 701 of the PLC controller 5 also clamps the wheel rim. Then, the drive source 101 of the PLC controller 5 drives the tail box 3 to slide along the guide rail 102 towards the head box 2 until the wheel rim contacts the wheel spokes. Then, the PLC controller 5 controls... Cylinder 602 pushes laser detector 6 to the detection point, and at the same time controls servo motor to drive electric chuck 701 to rotate. Electric chuck 701 drives the rim to rotate. Laser detector 6 detects the circular runout value of the outer surface of the rim and sends the detection value to PLC controller 5. PLC controller 5 compares the detection value with the set value. If it is within the set value, PLC controller 5 controls welding robot arm 4 to weld between the rim and the spokes. During welding, servo motor drives the rim and spokes to rotate respectively. If the detection value is outside the set value, the rim needs to be replaced, and then the replaced rim is tested until it passes the test.

[0026] After welding is completed, PLC controller 5 controls laser detector 6 to detect the circular runout value of the outer surface of the welded rim. After the detection is completed, PLC controller 5 controls electric chuck 701 and pneumatic chuck 7 to loosen and disassemble the welded rim and spokes. Then, drive tail box 3 to move to its original position, and install new rim and spokes in the above manner for welding. Welding that passes the inspection is distinguished from that that fails.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A self-centering welding device for rim and spoke combination, characterized in that it comprises a welding base (1), a head box (2) fixedly installed on the welding base (1), a tail box (3) slidably installed on the welding base (1) and oppositely arranged with the head box (2), a welding mechanical arm (4) for replacing manual welding of the rim and the spoke, and a PLC controller (5) for realizing automatic welding control; the head box (2) and the tail box (3) are rotatably installed with chucks for fixing the rim and the spoke, respectively; the head box (2) is further installed with a laser detector (6) for detecting the roundness value of the rim.

2. The rim and spoke self-centering welding device according to claim 1, characterized in that: The chuck comprises a pneumatic chuck (7) installed on the head box (2) and an electric chuck (701) installed on the tail box (3).

3. The rim and spoke self-centering welding device according to claim 2, characterized in that: The pneumatic chuck (7) is further installed with a support step block (702) adaptable to different sizes of the spoke and a sensor (703) installed on the support step block (702) for sensing the fit installation of the spoke.

4. The rim and spoke self-centering welding device according to claim 2, characterized in that: The electric chuck (701) is installed with a fit chuck jaw (704) for fitting the outer surface of the rim to prevent deformation of the rim during clamping.

5. The rim and spoke self-centering welding device according to claim 2, characterized in that: The pneumatic chuck (7) and the electric chuck (701) on the head box (2) and the tail box (3) are driven to rotate by a servo motor.

6. The rim-spoke self-centering welding device according to claim 1, characterized in that: The head box (2) is further installed with a detection bracket (601) for installing the laser detector (6) and a cylinder (602) installed on the detection bracket (601) for pushing the laser detector (6) to move.

7. The rim-spoke self-centering welding device according to claim 1, characterized in that: The welding base (1) is further installed with a driving source (101) for driving the tail box (3) to move and a guide rail (102) for guiding the movement of the tail box (3).

8. The rim and spoke self-centering welding device according to claim 7, characterized in that: The tail box (3) is installed with a sliding block (103) adaptable to the guide rail (102).

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