A rotary tooling for circumferential welding of anti-collision pipes

Abstract

This utility model relates to the technical field of anti-collision pipe processing equipment, specifically a rotary fixture for circumferential welding of anti-collision pipes. It includes a fixture base frame, with an L-shaped support frame symmetrically fixed to the top of the base frame near its center. A through hole for the support plate is opened at the center of the side wall of the L-shaped support frame. Clamping assemblies are symmetrically installed above the fixture base frame, each clamping assembly including two positioning ring plates. The clamping and fixing of the anti-collision pipe to be welded is achieved through the mutual cooperation between the structures belonging to the clamping assemblies on both sides of the fixture base frame. The two positioning ring plates are respectively installed inside the through hole of the support plate and the sliding ring plate. This allows the anti-collision pipe to rotate as a whole with the positioning ring plates, the expansion connecting rod, and the extrusion clamping plate after the positioning ring plates clamp and fix the anti-collision pipe close together, replacing the rotation process of the welding torch during circumferential welding. This results in higher operating efficiency and increases the working efficiency of circumferential welding of anti-collision pipes.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-collision pipe processing equipment, specifically to a rotary tooling for anti-collision pipe circumferential weld welding. Background Technology

[0002] Car crash barriers (bumper bars) are key components of a vehicle's passive safety system. They are mainly used to enhance the structural strength of the vehicle body, absorb and disperse energy during a collision, reduce deformation of the passenger compartment, and thus protect the safety of the occupants. Crash barriers are usually hidden inside parts such as doors and front and rear bumpers. They are made of high-strength materials (such as high-strength steel and boron steel) to enhance the local rigidity of the vehicle body. The installation of crash barriers requires steps such as cutting and welding.

[0003] In the existing technology, during the assembly and welding of the anti-collision pipe, a clamping base is required to clamp and fix the pipe body, and after the anti-collision pipe is assembled and clamped, it is welded by an electric welding machine.

[0004] In the existing technology, the anti-collision pipe is a circular structure. During the full welding process, the welding gun and the weld seam need to rotate in a relative circle. After the anti-collision pipe is fixed, the welding gun and the weld seam need to make a circular motion. The circular motion of the welding gun around the anti-collision pipe is not easy to perform, which affects the welding efficiency. Therefore, in order to solve the above problems, a rotating tooling for circumferential welding of anti-collision pipe is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies and solve the problem that the circular structure of the anti-collision pipe requires relative circumferential rotation between the welding torch and the weld seam during full welding, and that the welding torch and welding air need to make circumferential motion after the anti-collision pipe is fixed, which is difficult to achieve and affects welding efficiency, a rotating tooling for circumferential welding of anti-collision pipes is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The anti-collision pipe circumferential welding rotary fixture of this utility model includes a fixture base frame. An L-shaped support frame is symmetrically fixed to the top of the fixture base frame near the center. A frame plate through hole is opened at the center of the side wall of the L-shaped support frame. A clamping assembly is symmetrically installed above the fixture base frame. The clamping assembly includes two positioning ring plates. Multiple expansion rods are hinged between the adjacent side walls of the two positioning ring plates through a bracket. The multiple expansion rods are opened at equal angles along the circumferential direction of the frame plate through hole. A compression clamping plate is hinged to the near ends of the expansion rods on both sides. The anti-collision pipe is clamped between the adjacent side walls of the compression clamping plate.

[0007] Preferably, one of the positioning ring plates is fitted into the inner wall of the through hole of the frame plate, and the other positioning ring plate is fitted with a sliding ring plate on its outer side.

[0008] Preferably, the outer wall of the sliding ring plate is symmetrically fixed with a guide rod support plate, and a limiting guide rod is slidably fitted in the through hole of the side wall of the guide rod support plate, with one end of the limiting guide rod being vertically fixed to the side wall of the L-shaped support frame.

[0009] Preferably, an L-shaped fixing bracket is fixedly connected to the other end of the limiting guide rod, and the L-shaped fixing bracket is fixed to the top of the tooling base frame by bolts.

[0010] Preferably, one of the L-shaped fixing frames has an electric telescopic rod vertically fixed to its side wall, and the output end of the electric telescopic rod is vertically fixed to the side wall of the guide rod support plate.

[0011] Preferably, the L-shaped support frame is fixedly connected to a ring gear near the side wall where the sliding ring plate is located, and the axis of the ring gear coincides with the axis of the through hole of the frame plate.

[0012] Preferably, a transmission rod is fitted between the adjacent sidewalls of the two L-shaped fixing frames via a guide sleeve, and output gears are fixedly connected to both ends of the transmission rod. The two output gears mesh with two ring gears respectively.

[0013] Preferably, a motor is mounted on the top surface of one of the L-shaped support brackets via a bracket, and the output shaft of the motor is connected to the axis of the transmission rod.

[0014] The beneficial effects of this utility model are: I. In this utility model, the clamping and fixing of the anti-collision pipe to be welded is achieved through the mutual cooperation between the structures of the clamping components on both sides of the tooling base frame. The two positioning ring plates are respectively installed inside the through hole of the frame plate and the sliding ring plate. This allows the anti-collision pipe to rotate as a whole with the positioning ring plate, the expansion connecting rod, and the extrusion clamping plate after the positioning ring plates approach each other to clamp and fix the anti-collision pipe. This replaces the rotation process of the welding gun during the circumferential welding process, resulting in higher operating efficiency and thus improving the working efficiency of circumferential welding of the anti-collision pipe. Second, in this utility model, the limiting guide rod is installed by the cooperation of the L-shaped support frame and the L-shaped fixing frame, and the sliding ring plate and the guide rod support plate are displacement limited as a whole. When one of the positioning ring plates moves with the sliding ring plate, the relative distance between each extrusion clamping plate can be changed within the appropriate range. This allows the clamping assembly to clamp the anti-collision tube while also clamping and fixing anti-collision tubes of different sizes within a certain range, thus increasing the rationality of the device structure. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the tooling base frame in this utility model; Figure 3 This is a perspective view of the clamping component in this utility model; Figure 4 This is a three-dimensional view of the positioning ring plate and guide rod support plate disassembled in this utility model; Legend: 1. Tooling base frame; 11. L-shaped support frame; 12. Through hole in the frame plate; 2. Clamping assembly; 21. Positioning ring plate; 22. Expansion connecting rod; 23. Extrusion clamping plate; 24. Sliding ring plate; 25. Guide rod support plate; 26. Limiting guide rod; 27. L-shaped fixing frame; 3. Electric telescopic rod; 4. Ring gear; 5. Transmission rod; 51. Output gear; 6. Motor. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Specific implementation examples are given below.

[0018] Please see Figure 1 - Figure 4This utility model provides a rotary fixture for welding circumferential seams of anti-collision pipes, including a fixture base frame 1. An L-shaped support frame 11 is symmetrically fixed to the top of the fixture base frame 1 near its center. A through hole 12 for the support plate is opened at the center of the side wall of the L-shaped support frame 11. A clamping assembly 2 is symmetrically installed above the fixture base frame 1. The clamping assembly 2 includes two positioning ring plates 21. One positioning ring plate 21 is clamped between the inner walls of the through hole 12. Multiple expansion rods 22 are hinged between adjacent side walls of the two positioning ring plates 21 via brackets. The multiple expansion rods 22 are equally spaced along the circumference of the through hole 12. A compression clamping plate 23 is hinged to the near ends of the expansion rods 22 on both sides. The anti-collision pipe is clamped between adjacent side walls of the compression clamping plate 23. A sliding ring plate 2 is clamped to the outside of the other positioning ring plate 21. 4. After the welding ends of the anti-collision pipes to be welded are joined together, they are placed above the tooling base frame 1 and clamped and fixed by the clamping components 2 respectively. The clamping components 2 and the through holes 12 of the frame plate are engaged with each other, which allows the clamping components 2 and the through holes 12 of the frame plate to rotate relative to each other. This allows the anti-collision rod as a whole to meet the requirements of circumferential welding by rotating with the clamping components 2 after the anti-collision pipe is clamped and fixed by the clamping components 2, replacing the circumferential movement of the welding gun. One of the positioning ring plates 21 is clamped inside the through hole 12 of the frame plate. During the translation of the other positioning ring plate 21, the extrusion clamping plates 23 can move closer or further away from each other under the action of the expansion connecting rod 22. The anti-collision pipe is placed between the extrusion clamping plates 23. The reciprocating movement of the positioning ring plate 21 can realize the clamping or release of the anti-collision pipe by the clamping components 2.

[0019] like Figure 3 and Figure 4As shown, guide rod support plates 25 are symmetrically fixed to the outer wall of the sliding ring plate 24. Limiting guide rods 26 are slidably fitted inside the through holes on the side walls of the guide rod support plates 25. One end of the limiting guide rod 26 is vertically fixed to the side wall of the L-shaped support frame 11, and an L-shaped fixing frame 27 is fixed to the other end of the limiting guide rod 26. The L-shaped fixing frame 27 is bolted to the top of the tooling base frame 1. An electric telescopic rod 3 is vertically fixed to the side wall of one of the L-shaped fixing frames 27. The output end of the electric telescopic rod 3 is vertically fixed to the side wall of the guide rod support plate 25. The L-shaped support frame 11 and the L-shaped fixing frame 27 cooperate to fix the clamping assembly 2, allowing the sliding guide rod 26 to slide on the outer wall of the limiting guide rod 26. The guide rod support plate 25 and the sliding ring plate 24 can reciprocate radially within a certain range, while another positioning ring plate 21 is clamped inside the sliding ring plate 24. This allows the sliding ring plate 24 to move toward the frame plate through hole 12 when the electric telescopic rod 3 expands, and the compression clamps 23 move closer to each other to compress and fix the outer wall of the anti-collision tube. When the electric telescopic rod 3 retracts, the sliding ring plate 24 moves away from the frame plate through hole 12. At this time, the compression clamps 23 move away from each other, which can pull the anti-collision tube out from between the compression clamps 23. The structural feature of the compression clamps 23 clamping the anti-collision tube makes it possible for the clamping assembly 2 to clamp and fix anti-collision tubes with different outer diameters within a certain range.

[0020] like Figure 1 , Figure 2 and Figure 4 As shown, an annular gear 4 is movably installed on the side of the L-shaped support 11 near the sliding ring plate 24. The axis of the annular gear 4 coincides with the axis of the through hole 12 of the support plate. A transmission rod 5 is fitted between the adjacent side walls of the two L-shaped fixed brackets 27 through a guide sleeve. Output gears 51 are fixed to both ends of the transmission rod 5. The two output gears 51 mesh with the two annular gears 4 respectively. A motor 6 is installed on the top surface of one of the L-shaped support 11 through a bracket. The output shaft of the motor 6 is connected to the axis of the transmission rod 5. Under the transmission action of the transmission rod 5, the output gears 51 that mesh with the two annular gears 4 can rotate synchronously. The two annular gears 4 are rotatably installed on the side wall of the positioning ring plate 21. This allows the clamping components 2 on both sides and the anti-collision tube clamped and fixed by them to rotate under the drive of the motor 6, and the anti-collision tube is welded with a welding torch.

[0021] Working principle: After the welding ends of the anti-collision pipes to be welded are joined together, they are placed above the tooling base frame 1 and clamped and fixed by the clamping components 2 respectively. The clamping components 2 and the through holes 12 of the frame plate are interlocked, which allows relative rotation between the clamping components 2 and the through holes 12 of the frame plate. This allows the anti-collision rod as a whole to meet the requirements of circumferential welding by rotating with the clamping components 2 after the anti-collision pipe is clamped and fixed by the clamping components 2, replacing the circumferential movement of the welding torch. One of the positioning ring plates 21 is clamped inside the through hole 12 of the frame plate. During the translation of the other positioning ring plate 21, the compression clamping plates 23 can move closer or further apart under the action of the expansion connecting rod 22, and the anti-collision pipe is placed between the compression clamping plates 23. The reciprocating movement of the positioning ring plate 21 can realize the clamping or release of the anti-collision pipe by the clamping components 2. The L-shaped support frame 11 and the L-shaped fixing frame 27 cooperate to fix the clamping components 2, which allows the guide rod support plate 25 sliding between the outer walls of the limiting guide rod 26 and the sliding... The moving ring plate 24 can reciprocate radially within a certain range, while another positioning ring plate 21 is clamped inside the sliding ring plate 24. This allows the sliding ring plate 24 to move toward the frame plate through hole 12 when the electric telescopic rod 3 expands, and the extrusion clamps 23 move closer to each other to extrude and fix the outer wall of the anti-collision tube. When the electric telescopic rod 3 retracts, the sliding ring plate 24 moves away from the frame plate through hole 12. At this time, the extrusion clamps 23 move away from each other, which can pull the anti-collision tube away from the extrusion clamps 23. The structural feature of the extrusion clamps 23 clamping the anti-collision tube makes the clamping assembly 2 able to clamp and fix anti-collision tubes with different outer diameters within a certain range. Under the transmission action of the transmission rod 5, the output gear 51, which meshes with the two ring gears 4, can make them rotate synchronously. The two ring gears 4 are respectively installed on the side wall of the positioning ring plate 21. This allows the clamping assemblies 2 on both sides and the anti-collision tubes clamped and fixed by them to rotate under the drive of the motor 6, and to perform circumferential welding on the anti-collision tube with the welding gun.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rotary tooling for welding circumferential seams of anti-collision pipes, characterized in that: The tooling base (1) is symmetrically fixed to the top of the tooling base (1) near the center. The L-shaped support frame (11) has a frame plate through hole (12) at the center of the side wall of the L-shaped support frame (11). A clamping assembly (2) is symmetrically installed above the tooling base (1). The clamping assembly (2) includes two positioning ring plates (21). One of the positioning ring plates (21) is clamped between the inner walls of the frame plate through hole (12). Multiple expansion connecting rods (22) are hinged between the adjacent side walls of the two positioning ring plates (21) through a bracket. The multiple expansion connecting rods (22) are opened at equal angles along the circumferential direction of the frame plate through hole (12). The near ends of the expansion connecting rods (22) on both sides are hinged to extrusion clamps (23). The anti-collision tube is clamped between the adjacent side walls of the extrusion clamps (23).

2. The rotary tooling for circumferential welding of anti-collision pipes according to claim 1, characterized in that: Another positioning ring plate (21) is externally fitted with a sliding ring plate (24).

3. The rotary tooling for circumferential welding of anti-collision pipes according to claim 2, characterized in that: The outer wall of the sliding ring plate (24) is symmetrically fixed with a guide rod support plate (25). A limit guide rod (26) is slidably fitted in the through hole of the side wall of the guide rod support plate (25). One end of the limit guide rod (26) is vertically fixed to the side wall of the L-shaped support frame (11).

4. The rotary tooling for circumferential welding of anti-collision pipes according to claim 3, characterized in that: An L-shaped fixing bracket (27) is fixedly connected to the other end of the limiting guide rod (26), and the L-shaped fixing bracket (27) is fixedly connected to the top of the tooling base frame (1) by bolts.

5. The rotary tooling for circumferential welding of anti-collision pipes according to claim 4, characterized in that: One of the L-shaped fixing frames (27) has an electric telescopic rod (3) vertically fixed to its side wall, and the output end of the electric telescopic rod (3) is vertically fixed to the side wall of the guide rod support plate (25).

6. The rotary tooling for circumferential welding of anti-collision pipes according to claim 5, characterized in that: The L-shaped support frame (11) is fixed with a ring gear (4) near the side wall where the sliding ring plate (24) is located. The axis of the ring gear (4) coincides with the axis of the through hole (12) of the frame plate.

7. The rotary tooling for circumferential welding of anti-collision pipes according to claim 6, characterized in that: A transmission rod (5) is fitted between the adjacent side walls of the two L-shaped fixing brackets (27) through a guide sleeve. Both ends of the transmission rod (5) are fixed with output gears (51), and the two output gears (51) mesh with the two ring gears (4) respectively.

8. The rotary tooling for circumferential welding of anti-collision pipes according to claim 7, characterized in that: One of the L-shaped support brackets (11) has a motor (6) mounted on its top surface via a bracket, and the output shaft of the motor (6) is connected to the axis of the transmission rod (5).

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