A swing switching mechanism for welding automotive body-in-white

Abstract

This utility model discloses a swing switching mechanism for welding automotive body-in-white, relating to the field of body-in-white welding technology. It includes a load-bearing frame, with a power connection shaft fixedly connected to the top center of the load-bearing frame. Limiting holes are opened at both ends of the load-bearing frame, and contact mechanisms are installed inside the limiting holes. A pressing mechanism is located above the contact mechanisms at the top of the load-bearing frame. The contact mechanism includes a limiting rod, which is slidably connected to the inner wall of the limiting hole. This utility model has a reasonable design structure. A drive motor drives the power shaft to rotate, which in turn drives the adjusting screw to rotate. The adjusting screw drives the limiting rod to move in opposite directions, which in turn drives the fixed frame to move. The fixed frame then drives the bracket to move below the body-in-white. Simultaneously, a servo motor drives a rotating rod to rotate via a transmission chain. The rotating rod drives the adjusting frame to move downwards, and the adjusting frame then drives the pressing frame to move to the top of the body-in-white. The pressing frame and the bracket limit the movement of the body-in-white, providing the advantage of synchronous upper and lower limiting.

Description

Technical Field

[0001] This utility model relates to the field of automotive body-in-white welding technology, specifically a swing switching mechanism for automotive body-in-white welding. Background Technology

[0002] The automotive body-in-white welding swing switching mechanism is a key piece of equipment on the automotive manufacturing production line. It is used to quickly switch welding fixtures or tools between different workstations or different car models. This mechanism can improve the flexibility of the production line and adapt to the needs of mixed production of multiple car models. Its main function is to quickly switch between different car models or different welding workstations, which can improve production efficiency, reduce changeover time, ensure the precise positioning of welding fixtures or tools, support the needs of multiple car models or different welding processes, and seamlessly integrate with the production line automation system. One device can serve multiple workstations, which greatly reduces equipment investment.

[0003] Existing body-in-white welding swing switching mechanisms mostly consist of multiple individual clamps. These clamps achieve swing switching of the body by increasing the clamping tightness to the sides of the body, which easily leads to deformation of the clamping position, resulting in reduced welding accuracy. Furthermore, existing body-in-white welding swing switching mechanisms are not suitable for various body sizes. Therefore, we provide an automotive body-in-white welding swing switching mechanism to solve these problems. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a swing switching mechanism for welding automotive body-in-white.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a swing switching mechanism for welding automotive body-in-white, comprising a load-bearing frame, a power connection shaft fixedly connected to the top of the center position of the load-bearing frame, limit holes opened at both ends of the load-bearing frame, a contact mechanism provided inside the limit holes, a pressing mechanism provided above the contact mechanism at the top of the load-bearing frame, the contact mechanism including a limit rod, the limit rod and the inner wall of the limit hole forming a sliding connection, a fixing frame fixedly connected between the limit rods at the front and rear ends of the load-bearing frame, an adjustment groove opened at both ends of the fixing frame, a bracket inserted into the adjustment groove, the pressing mechanism including an adjustment frame, the top wall of the load-bearing frame forming a sliding connection with the inner wall of the adjustment frame through a guide rod, and pressing frames inserted above the bracket at both ends of the adjustment frame.

[0008] Furthermore, an adjusting screw is rotatably connected between the side walls of the limiting rods on the left and right sides of the load-bearing frame. A sliding groove is provided on the side wall of the load-bearing frame at the position of the limiting hole. A pushing block is provided on the side wall of the limiting rod in the sliding groove. A threaded hole that meshes with the outer wall of the adjusting screw is provided inside the pushing block.

[0009] Furthermore, the power connection shaft is connected to the drive mechanism of the external swinging robotic arm. A drive motor is embedded in the right side of the load-bearing frame. The output ends of the drive motor on both the front and rear sides are fixedly connected to the power shaft. The end of the power shaft is engaged with the adjusting screw through a bevel gear.

[0010] Furthermore, the fixed frame and the limiting rod are arranged at a vertical angle, the bracket and the fixed frame are connected by bolts, the top wall of the fixed frame has several bolt holes with through adjustment grooves, the top of the bracket has several bolt holes, the top of the bracket is arranged in an "L" shape, and the inner wall of the lower end of the bracket is inlaid with a rubber protective block.

[0011] Furthermore, the adjusting frame is H-shaped, and the inner wall of the adjusting frame is provided with a guide ring that meshes with the guide rod. The left and right ends of the adjusting frame are provided with connecting holes that form a sliding connection with the top of the lower pressure frame. The lower pressure frame is L-shaped, and the side wall of the load-bearing frame is fixedly connected to the outer surface of the lower pressure frame with a support ring. The side wall of the lower pressure frame and the support ring form a sliding connection. The bottom wall of the lower pressure frame is inlaid with a rubber protective block.

[0012] Furthermore, a rotating rod is rotatably connected between the left side of the center position of the adjustment frame and the load-bearing frame. The outer wall of the rotating rod is threaded, and a rotating hole that meshes with the outer wall of the rotating rod is opened at the center position of the adjustment frame. Supports are provided on the side wall of the load-bearing frame at the upper and lower ends of the rotating rod.

[0013] Furthermore, a servo motor is fixedly connected to the left side of the inner wall of the load-bearing frame. The bottom end of the servo motor is engaged with the bottom end of the rotating rod through a transmission chain. Both the bottom end of the servo motor and the bottom end of the rotating rod are provided with sprockets.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this automotive body-in-white welding swing switching mechanism has the following advantages:

[0016] I. This utility model uses a drive motor to rotate a power shaft, which in turn rotates an adjusting screw. The adjusting screw then moves a limit rod in opposite directions, which in turn moves a fixed frame. The fixed frame then moves a bracket to the bottom of the body-in-white. Simultaneously, a servo motor drives a rotating rod to rotate via a transmission chain. The rotating rod moves the adjusting frame downwards, and the adjusting frame moves a lower pressure frame to the top of the body-in-white. The lower pressure frame and the bracket limit the movement of the body-in-white. This solves the problem that existing body-in-white welding swing switching mechanisms rely on increasing the clamping force on the sides of the body to achieve swing switching, which can lead to deformation of the clamping position and reduced welding accuracy. This new model has the advantage of synchronous upper and lower limiting.

[0017] Second, this utility model adjusts the distance between the brackets according to the size of the body-in-white, limits the distance between the lower pressure frame and the fixed frame by bolts, and drives the load frame to move towards the body-in-white through the power connection shaft of the external swinging robotic arm. This solves the problem that the existing body-in-white welding swing switching mechanism is not suitable for body sizes of various sizes and has the advantage of being easy to adjust. Attached Figure Description

[0018] Figure 1 This is a triaxial drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the drive motor of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting hole of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing frame of this utility model.

[0022] In the diagram: 1. Load-bearing frame; 2. Power connection shaft; 3. Limiting hole; 4. Limiting rod; 5. Fixing frame; 6. Adjusting groove; 7. Bracket; 8. Adjusting frame; 9. Guide rod; 10. Lower pressure frame; 11. Adjusting screw; 12. Drive motor; 13. Power shaft; 14. Support ring; 15. Rotating rod; 16. Servo motor; 17. Transmission chain. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-4As shown, this utility model provides a technical solution: a swing switching mechanism for welding automotive body-in-white, including a load-bearing frame 1. A power connecting shaft 2 is fixedly connected to the top of the center position of the load-bearing frame 1. The power connecting shaft 2 is connected to the drive mechanism of an external swinging robotic arm. The drive mechanism of the external swinging robotic arm drives the load-bearing frame 1 to move toward the body-in-white through the power connecting shaft 2. Limiting holes 3 are opened at both ends of the load-bearing frame 1. A contact mechanism is set inside the limiting holes 3. A pressing mechanism is set above the contact mechanism at the top of the load-bearing frame 1. The contact mechanism includes a limiting rod 4. The limiting rod 4 is slidably connected to the inner wall of the limiting hole 3. An adjusting screw 11 is rotatably connected between the side walls of the limiting rod 4 on the left and right sides of the load-bearing frame 1. A sliding groove is opened on the side wall of the load-bearing frame 1 at the position of the limiting hole 3. A pushing block is set in the sliding groove on the side wall of the limiting rod 4. A threaded hole that meshes with the outer wall of the adjusting screw 11 is opened inside the pushing block. The setting of the sliding groove facilitates the adjustment screw 11 to drive the limiting rod 4 to move.

[0025] A fixed frame 5 is fixedly connected between the limiting rods 4 at the front and rear ends of the load-bearing frame 1. The fixed frame 5 and the limiting rods 4 are arranged at a perpendicular angle. An adjustment groove 6 is opened at both the front and rear ends of the fixed frame 5. A bracket 7 is inserted into the adjustment groove 6. The bracket 7 is connected to the fixed frame 5 by bolts. Several bolt holes are opened on the top wall of the fixed frame 5, which pass through the adjustment groove 6. Several bolt holes are opened inside the top of the bracket 7. The top of the bracket 7 is arranged in an "L" shape. A rubber protective block is embedded in the inner wall of the lower end of the bracket 7. The rubber protective block plays a protective role for the body-in-white.

[0026] The pressing mechanism includes an adjusting frame 8. The top wall of the load-bearing frame 1 is slidably connected to the inner wall of the adjusting frame 8 via a guide rod 9. Pressing frames 10 are inserted into both ends of the adjusting frame 8 above the bracket 7. A drive motor 12 is embedded in the right side of the load-bearing frame 1. Power shafts 13 are fixedly connected to the output ends of the drive motor 12 on both the front and rear sides. The ends of the power shafts 13 mesh with the adjusting screw 11 via bevel gears. The adjusting frame 8 is H-shaped, and the inner wall of the adjusting frame 8 is provided with guide rods that mesh with the guide rods 9. The adjusting bracket 8 has connecting holes at both ends that slide with the top of the lower pressure bracket 10. The lower pressure bracket 10 is L-shaped. The distance between the brackets 7 is adjusted according to the size of the body-in-white. The lower pressure bracket 10 and the fixed bracket 5 are limited by bolts. A support ring 14 is fixedly connected to the side wall of the load frame 1 on the outer surface of the lower pressure bracket 10. The side wall of the lower pressure bracket 10 and the support ring 14 form a sliding connection. A rubber protective block is embedded in the bottom wall of the lower pressure bracket 10. The left side of the center position of the adjusting bracket 8 is connected to the load frame. A rotating rod 15 is rotatably connected between the frames 1 and 8. The outer wall of the rotating rod 15 is threaded. A rotating hole that meshes with the outer wall of the rotating rod 15 is opened at the center of the adjusting frame 8. Supports are provided on the side walls of the load-bearing frame 1 at the upper and lower ends of the rotating rod 15. A servo motor 16 is fixedly connected between the left sides of the inner wall of the load-bearing frame 1. The bottom end of the servo motor 16 meshes with the bottom end of the rotating rod 15 through a transmission chain 17. Both the bottom end of the servo motor 16 and the bottom end of the rotating rod 15 are provided with sprockets. The drive motor 12 drives the power shaft. When the drive shaft 13 rotates, the adjusting screw 11 rotates, the adjusting screw 11 moves the limiting rod 4 towards each other, the limiting rod 4 moves the fixing frame 5, the fixing frame 5 moves the bracket 7 to the bottom of the body-in-white, and at the same time the servo motor 16 drives the rotating rod 15 to rotate through the transmission chain 17, the rotating rod 15 moves the adjusting frame 8 down, the adjusting frame 8 moves the lower pressure frame 10 to the top of the body-in-white, the lower pressure frame 10 and the bracket 7 limit the body-in-white, and the external swinging robotic arm switches the position of the body-in-white.

[0027] Working principle: When in use, the oscillating switching mechanism for welding the car body-in-white adjusts the distance between the brackets 7 according to the size of the car body-in-white. The lower pressure frame 10 and the fixed frame 5 are limited by bolts. The drive mechanism of the external oscillating robotic arm drives the load frame 1 to move towards the car body-in-white through the power connection shaft 2. The drive motor 12 drives the power shaft 13 to rotate. The power shaft 13 drives the adjusting screw 11 to rotate. The adjusting screw 11 drives the limit rod 4 to move in opposite directions. The limit rod 4 drives the fixed frame 5 to move. The fixed frame 5 drives the bracket 7 to move to the bottom of the car body-in-white. At the same time, the servo motor 16 drives the rotating rod 15 to rotate through the transmission chain 17. The rotating rod 15 drives the adjusting frame 8 to move down. The adjusting frame 8 drives the lower pressure frame 10 to move to the top of the car body-in-white. The lower pressure frame 10 and the bracket 7 limit the position of the car body-in-white. The external oscillating robotic arm switches the position of the car body-in-white.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car body-in-white welding swing switching mechanism comprising a load frame (1), characterized in that: The load-bearing frame (1) is fixedly connected to the top of the center position of the power connection shaft (2). Limiting holes (3) are opened at both ends of the load-bearing frame (1). A contact mechanism is provided inside the limiting hole (3). A pressing mechanism is provided on the top of the load-bearing frame (1) above the contact mechanism. The contact mechanism includes a limiting rod (4), which is slidably connected to the inner wall of the limiting hole (3). A fixed frame (5) is fixedly connected between the limiting rods (4) at the front and rear ends of the load frame (1). An adjustment groove (6) is provided at both the front and rear ends of the fixed frame (5), and a bracket (7) is inserted into the adjustment groove (6). The pressing mechanism includes an adjusting frame (8). The top wall of the load-bearing frame (1) is slidably connected to the inner wall of the adjusting frame (8) by a guide rod (9). The left and right ends of the adjusting frame (8) are each connected to a pressing frame (10) above the bracket (7).

2. The automotive body-in-white welding swing switching mechanism according to claim 1, characterized in that: An adjusting screw (11) is rotatably connected between the side walls of the limiting rods (4) on the left and right sides of the load-bearing frame (1). A sliding groove is provided on the side wall of the load-bearing frame (1) at the position of the limiting hole (3). A pushing block is provided on the side wall of the limiting rod (4) in the sliding groove. A threaded hole that meshes with the outer wall of the adjusting screw (11) is provided inside the pushing block.

3. The automotive body-in-white welding swing switching mechanism according to claim 2, characterized in that: The power connection shaft (2) is connected to the drive mechanism of the external swinging mechanical arm. The drive motor (12) is embedded in the right side of the load frame (1). The output ends of the drive motor (12) on both the front and rear sides are fixedly connected to the power shaft (13). The end of the power shaft (13) is engaged with the adjusting screw (11) through a bevel gear.

4. The automotive body-in-white welding swing switching mechanism according to claim 1, characterized in that: The fixed frame (5) and the limiting rod (4) are arranged at a vertical angle. The bracket (7) and the fixed frame (5) are connected by bolts. The top wall of the fixed frame (5) has several bolt holes for the through adjustment groove (6). The top of the bracket (7) has several bolt holes. The top of the bracket (7) is L-shaped. The inner wall of the lower end of the bracket (7) is inlaid with a rubber protective block.

5. The automotive body-in-white welding swing switching mechanism according to claim 1, characterized in that: The adjusting frame (8) is H-shaped. The inner wall of the adjusting frame (8) is provided with a guide ring that meshes with the guide rod (9). The left and right ends of the adjusting frame (8) are provided with connecting holes that form a sliding connection with the top of the lower pressure frame (10). The lower pressure frame (10) is L-shaped. The side wall of the load frame (1) is fixedly connected to the outer surface of the lower pressure frame (10) with a support ring (14). The side wall of the lower pressure frame (10) and the support ring (14) form a sliding connection. The bottom wall of the lower pressure frame (10) is inlaid with a rubber protective block.

6. The automotive body-in-white welding swing switching mechanism according to claim 1, characterized in that: A rotating rod (15) is rotatably connected between the left side of the center position of the adjusting frame (8) and the load frame (1). The outer wall of the rotating rod (15) is threaded. A rotating hole that meshes with the outer wall of the rotating rod (15) is opened at the center position of the adjusting frame (8). Supports are provided on the side wall of the load frame (1) at both the upper and lower ends of the rotating rod (15).

7. The automotive body-in-white welding swing switching mechanism according to claim 1, characterized in that: A servo motor (16) is fixedly connected between the left side of the inner wall of the load-bearing frame (1). The bottom end of the servo motor (16) and the bottom end of the rotating rod (15) are engaged by a transmission chain (17). Both the bottom end of the servo motor (16) and the bottom end of the rotating rod (15) are provided with sprockets.

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