Arc welding device for motorcycle frame

Abstract

The utility model discloses a motorcycle frame arc welding device, which belongs to the technical field of motorcycle production equipment and comprises a mechanical arm, the head of the mechanical arm is fixedly connected with an annular track, a trolley is mounted on the annular track in a rolling manner, and the lower end of the trolley is fixedly connected with a camera. A spiral elastic wire is connected between the mechanical arm and the trolley, the trolley and the camera are electrically connected with the mechanical arm through the spiral elastic wire, the head of the mechanical arm is further fixedly connected with a winding sleeve, and the spiral elastic wire penetrates through the winding sleeve. And the lower part of the mechanical arm is fixedly connected with a mounting seat. The annular track comprises an annular track body and a limiting barrier strip, the trolley is driven to move along the annular track, the camera is driven by the trolley to revolve around the head of the mechanical arm, the winding sleeve is used for winding a spiral elastic wire, the shooting angle of the camera is changed, images of a target motorcycle frame can be conveniently collected at multiple angles, and the image collecting precision of a computer is improved. Therefore, the welding precision is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of motorcycle production equipment, and in particular relates to an arc welding device for motorcycle frames. Background Technology

[0002] The motorcycle frame needs to be welded using a welding robot. A welding robot is an industrial robot that performs welding (including cutting and painting). According to the International Organization for Standardization (ISO) definition of an industrial robot as a standard welding robot, an industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes used in industrial automation.

[0003] Because the camera of a conventional welding robot is relatively far from the welding point, the shooting angle deviation is relatively large. This increases the difficulty of image analysis by the computer program. When there is a small deviation in the data, it will reduce the actual welding accuracy, thus causing the low accuracy of conventional motorcycle frame welding robots.

[0004] To address this issue, we propose an arc welding device for motorcycle frames. Utility Model Content

[0005] The purpose of this invention is to solve the problem of low precision in conventional motorcycle frame welding robots, and to propose an arc welding device for motorcycle frames.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A motorcycle frame arc welding device includes a robotic arm. A circular track is fixedly connected to the head of the robotic arm, and a trolley is rotatably mounted on the circular track. A camera is fixedly connected to the lower end of the trolley. A helical elastic wire connects the robotic arm and the trolley, and the trolley and camera are electrically connected to the robotic arm via the helical elastic wire. A winding sleeve is also fixedly connected to the head of the robotic arm, and the helical elastic wire passes through the winding sleeve. Driving the trolley along the circular track causes the camera to revolve around the head of the robotic arm. By using the winding sleeve to wind the helical elastic wire, the camera's shooting angle can be changed, facilitating multi-angle image acquisition of the target motorcycle frame, improving computer image acquisition accuracy, and thus improving welding accuracy.

[0008] Preferably, the lower part of the robotic arm is fixedly connected to a mounting base. Screws are passed through the mounting base to install the robotic arm on the target ground or table, facilitating its installation and fixation.

[0009] Preferably, the annular track includes an annular track body and a limiting stop bar. One end of the limiting stop bar is fixedly connected to the inner wall of the annular track body, and the other end of the limiting stop bar is fixedly connected to the head of the robotic arm. The limiting stop bar prevents the trolley from excessively rotating in one direction, thus preventing excessive stretching of the helical elastic conductor and protecting it.

[0010] Preferably, the trolley includes a frame, a motor is fixedly connected to the upper part of the frame, and rollers are fixedly connected to the rotor of the motor. The rollers are in rolling contact with the upper end of the annular track. A first constraint wheel is rotatably mounted on the frame, and the first constraint wheel is in rolling contact with the inner wall of the annular track. The upper end of the camera is fixedly connected to the lower end of the frame. By using the motor to drive the rollers to rotate, the rollers roll along the annular track, which in turn moves the frame, and the frame moves the camera, making it easy to change the camera's shooting position.

[0011] Preferably, the trolley further includes a second constraint wheel, which is provided in pairs. The second constraint wheel rolls against the outer wall of the annular track, and the frame is connected to a helical elastic guide wire. The stability of the trolley is increased by using the first and second constraint wheels clamped onto the annular track.

[0012] Preferably, the winding sleeve includes a housing and a guide ring. The upper end of the guide ring is fixedly connected to the head of the robotic arm, and the lower end of the guide ring is fixedly connected to the upper end of the housing. When the trolley moves and pulls on the spiral elastic wire, the spiral elastic wire is wound around the housing. By winding the spiral elastic wire around the housing, the tensile strength at the root of the spiral elastic wire is reduced, thus protecting the root of the spiral elastic wire.

[0013] Preferably, the winding sleeve further includes a reinforcing ring, which is fixedly connected to the lower part of the sleeve housing. The reinforcing ring increases the stability of the lower structure of the sleeve housing.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] 1. Drive the trolley to move along the circular track. The trolley drives the camera to revolve around the head of the robotic arm. By using a winding sleeve to wind a spiral elastic wire, the shooting angle of the camera can be changed, which facilitates the acquisition of images of the target motorcycle frame from multiple angles, improves the accuracy of computer image acquisition, and thus improves the welding accuracy.

[0016] 2. Use the limit stop to block the trolley. When the trolley rotates excessively in one direction, it will prevent the spiral elastic wire from being pulled too much and thus protect the spiral elastic wire.

[0017] 3. The motor drives the rollers to rotate, which in turn move the frame along the circular track, and the frame moves the camera, making it easy to change the camera's shooting position.

[0018] 4. The stability of the trolley is increased by using the first and second constraint wheels to clamp the trolley onto the circular track.

[0019] 5. When the trolley moves and pulls on the spiral elastic wire, the spiral elastic wire is wrapped around the casing. The casing wraps around the spiral elastic wire, reducing the tensile strength at the root of the spiral elastic wire and facilitating the protection of the root of the spiral elastic wire. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the annular track structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the trolley structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the winding sleeve structure of this utility model.

[0024] In the diagram: 1. Robotic arm; 2. Circular track; 3. Trolley; 4. Winding sleeve; 5. Camera; 6. Mounting base; 7. Spiral elastic wire; 21. Circular track body; 22. Limiting stop bar; 31. Frame; 32. Motor; 33. First constraint wheel; 34. Second constraint wheel; 35. Roller; 41. Housing; 42. Guide ring; 43. Reinforcing ring. Detailed Implementation

[0025] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0026] Reference Figure 1 A motorcycle frame arc welding device includes a robotic arm 1, a circular track 2 fixedly connected to the head of the robotic arm 1, a trolley 3 rotatably mounted on the circular track 2, a camera 5 fixedly connected to the lower end of the trolley 3, a spiral elastic wire 7 connecting the robotic arm 1 and the trolley 3, the trolley 3 and the camera 5 being electrically connected to the robotic arm 1 through the spiral elastic wire 7, and a winding sleeve 4 fixedly connected to the head of the robotic arm 1, the spiral elastic wire 7 passing through the winding sleeve 4.

[0027] Reference Figure 1 The lower part of the robotic arm 1 is fixedly connected to a mounting base 6. Screws are passed through the mounting base 6 to install it on the target ground or table.

[0028] Reference Figure 1 and 2The circular track 2 includes a circular track body 21 and a limiting stop 22. One end of the limiting stop 22 is fixedly connected to the inner wall of the circular track body 21, and the other end of the limiting stop 22 is fixedly connected to the head of the robotic arm 1. The limiting stop 22 is used to block the trolley 3 from excessively rotating in one direction, thereby preventing excessive pulling of the wires.

[0029] Reference Figure 1 , 2 The vehicle 3 includes a frame 31, with a motor 32 fixedly connected to the upper part of the frame 31. A roller 35 is fixedly connected to the rotor of the motor 32, and the roller 35 makes rolling contact with the upper end of the annular track 21. A first constraint wheel 33 is rotatably mounted on the frame 31, making rolling contact with the inner wall of the annular track 21. The upper end of the camera 5 is fixedly connected to the lower end of the frame 31. The motor 32 drives the roller 35 to rotate, which in turn moves the frame 31 along the annular track 21, thus moving the camera 5.

[0030] Reference Figure 1 , 2 The trolley 3 also includes a second constraint wheel 34, which is provided in pairs. The second constraint wheel 34 rolls against the outer wall of the annular track 21. The frame 31 is connected to the spiral elastic guide wire 7. The stability of the trolley 3 is increased by using the first constraint wheel 33 and the second constraint wheel 34 to clamp onto the annular track 21.

[0031] Reference Figure 1 and 4 The winding sleeve 4 includes a housing 41 and a guide ring 42. The upper end of the guide ring 42 is fixedly connected to the head of the robotic arm 1, and the lower end of the guide ring 42 is fixedly connected to the upper end of the housing 41. When the trolley 3 moves and pulls the spiral elastic wire 7, the spiral elastic wire 7 is wound around the housing 41. By winding the spiral elastic wire 7 around the housing 41, the tensile strength at the root of the spiral elastic wire 7 is reduced.

[0032] Reference Figure 1 and 4 The winding sleeve 4 also includes a reinforcing ring 43, which is fixedly connected to the lower part of the housing 41. The reinforcing ring 43 is used to increase the stability of the lower structure of the housing 41.

[0033] Working principle: The trolley 3 is driven to move along the circular track 2. The trolley 3 drives the camera 5 to revolve around the head of the robotic arm 1. The spiral elastic wire 7 is wound around the winding sleeve 4 to change the shooting angle of the camera 5, which facilitates the acquisition of images of the target motorcycle frame from multiple angles and improves the accuracy of computer image acquisition.

[0034] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0035] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A motorcycle frame arc welding device comprising a robot arm (1), characterized in that: The head of the mechanical arm (1) is fixedly connected with an annular track (2), the trolley (3) is rollingly installed on the annular track (2), the lower end of the trolley (3) is fixedly connected with the camera (5), the mechanical arm (1) and the trolley (3) are connected with the spiral elastic wire (7), the trolley (3) and the camera (5) are electrically connected with the mechanical arm (1) through the spiral elastic wire (7), the head of the mechanical arm (1) is further fixedly connected with the winding sleeve (4), and the spiral elastic wire (7) penetrates through the winding sleeve (4).

2. A motorcycle frame arc welding apparatus according to claim 1, characterized in that: The lower part of the mechanical arm (1) is fixedly connected with the mounting seat (6).

3. A motorcycle frame arc welding apparatus according to claim 1, wherein: The annular track (2) comprises an annular track body (21) and a limiting baffle (22), one end of the limiting baffle (22) is fixedly connected with the inner wall of the annular track body (21), and the other end of the limiting baffle (22) is fixedly connected with the head of the mechanical arm (1).

4. An arc welding apparatus for motorcycle frames as claimed in claim 3 wherein: The trolley (3) comprises a frame (31), the upper part of the frame (31) is fixedly connected with the motor (32), the rotor of the motor (32) is fixedly connected with the rolling wheel (35), the rolling wheel (35) is in rolling contact with the upper end of the annular track body (21), the first constraint wheel (33) is rotatably installed on the frame (31), the first constraint wheel (33) is in rolling contact with the inner wall of the annular track body (21), and the upper end of the camera (5) is fixedly connected to the lower end of the frame (31).

5. An arc welding apparatus for motorcycle frames as claimed in claim 4 wherein: The trolley (3) further comprises a second constraint wheel (34), the second constraint wheel (34) is provided in pair, the second constraint wheel (34) is rollingly pressed against the outer wall of the annular track body (21), and the frame (31) is connected with the spiral elastic wire (7).

6. An arc welding apparatus for motorcycle frames as defined in claim 1, wherein: The winding sleeve (4) comprises a sleeve shell (41) and a guide ring (42), the upper end of the guide ring (42) is fixedly connected with the head of the mechanical arm (1), and the lower end of the guide ring (42) is fixedly connected to the upper end of the sleeve shell (41).

7. An arc welding apparatus for motorcycle frames as claimed in claim 6 wherein: The winding sleeve (4) further comprises a reinforcing ring (43), and the reinforcing ring (43) is fixedly connected to the lower part of the sleeve shell (41).

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