Positioning butt joint structure for welding bumper framework

Abstract

The utility model provides a positioning butt joint structure for welding a bumper framework, which relates to the technical field of automobile manufacturing and comprises a common reference surface, a first framework positioning pin, a second framework positioning pin and a support positioning pin, and the first framework positioning pin, the second framework positioning pin and the support positioning pin are fixedly mounted at the top of the common reference surface. A limiting block is fixedly installed on the top of the common datum plane. According to the utility model, under the action of the first framework positioning pin, the second framework positioning pin and the bracket positioning pin, the bumper framework and the auxiliary bracket can be limited on the common reference surface under the action of the first framework positioning hole, the second framework positioning hole and the bracket positioning hole; the two different parts are clamped through the clamping device assembly, then welding production is conducted, the clamping device assembly can guarantee the consistency of the welded parts, the part preparation degree is high, and therefore the workshop operation welding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a positioning butt joint structure for welding a bumper frame. Background Art

[0002] In the field of automobile manufacturing, it is necessary to weld the auxiliary brackets of the bumper frame. In order to adapt to the different configuration requirements of different OEMs, brackets are added to the existing bumper frame without increasing large capital investment. The positioning fixture tooling is designed to meet the welding positioning function and ensure the stability and consistency of the assembly parts by making full use of the point + surface positioning method.

[0003] In the prior art, when the fixture is used to weld parts, the bumper frame and the auxiliary bracket are first welded with carbon dioxide shielded welding, and then the bumper frame and the auxiliary bracket are reinforced and welded with a fixed spot welding machine. This requires two steps to complete, which requires the redesign of the one-piece sheet metal, increases the investment in redeveloping the sheet metal mold and development costs, and reduces the efficiency of welding in the workshop. Utility Model Content

[0004] The utility model aims to solve the problem that the existing equipment needs two working procedures to be completed when in use, thus requiring the redesign of the integrated sheet metal, increasing the redevelopment of the sheet metal mold and the investment in development costs, and proposes a positioning docking structure for bumper frame welding.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning and docking structure for welding a bumper frame, comprising a common reference surface, a first frame positioning pin is fixedly installed on the top of the common reference surface, a second frame positioning pin is fixedly installed on the top of the common reference surface, a bracket positioning pin is fixedly installed on the top of the common reference surface, a limiting block is fixedly installed on the top of the common reference surface, a clamping assembly is fixedly installed on the top of the common reference surface, the top of the common reference surface contacts the bumper frame, a first frame positioning hole is opened on the top of the bumper frame, and the outer wall of the second frame positioning pin is connected to the inside of the first frame positioning hole.

[0006] Preferably, a second frame positioning hole is formed on the top of the bumper frame, and the outer wall of the first frame positioning pin is connected to the inside of the second frame positioning hole.

[0007] Preferably, an auxiliary bracket is arranged on the top of the bumper frame, a bracket positioning hole is opened on the top of the auxiliary bracket, and the outer wall of the bracket positioning pin is connected with the inside of the bracket positioning hole.

[0008] Preferably, four legs are fixedly mounted on the bottom of the common reference plane, and one side of the outer wall of two of the legs is provided with a limiting groove.

[0009] Preferably, the inner surface walls of the two limiting grooves are movably embedded with L-shaped sliding blocks, and one side of the outer wall of the two supporting legs is fixedly installed with a horizontal plate.

[0010] Preferably, electric telescopic rods are fixedly mounted on the tops of the two horizontal plates, and output ends of the two electric telescopic rods are fixedly connected to the bottoms of the two L-shaped sliding blocks.

[0011] Preferably, a strip-shaped support block is fixedly installed on the top of each of the two L-shaped sliding blocks, and a moving vehicle is fixedly installed between the bottoms of the four supporting legs.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, through the action of the first frame locating pin, the second frame locating pin and the bracket locating pin, the bumper frame and the auxiliary bracket can be limited on the common reference plane under the action of the first frame locating hole, the second frame locating hole and the bracket locating hole, and the two different parts are clamped by the clamping assembly, and then the welding production is carried out, which reduces the investment in the re-development of sheet metal molds for parts, and the clamping assembly can ensure the consistency of welded parts, and the preparation degree of parts is also very high, thereby improving the efficiency of workshop welding.

[0014] 2. In the utility model, four electric telescopic rods are started to drive two L-shaped sliders to move inside two limit grooves, so that the bumper frame is supported and can support bumpers of different shapes and heights without the need for manual support by workers, further improving the efficiency of workshop welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A stereoscopic diagram of a positioning docking structure for bumper frame welding is proposed for the utility model;

[0016] Figure 2 A partial diagram of a positioning butt joint structure for bumper frame welding proposed by the utility model;

[0017] Figure 3 A partial diagram of a positioning butt joint structure for bumper frame welding is proposed for the utility model;

[0018] Figure 4 The utility model provides a partial disassembled diagram of a positioning butt joint structure for welding a bumper frame.

[0019] Legend:

[0020] 1. Common reference plane; 2. First frame locating pin; 3. Second frame locating pin; 4. Bracket locating pin; 5. Limit block; 6. Clamp assembly; 7. Bumper frame; 8. First frame locating hole; 9. Second frame locating hole; 10. Auxiliary bracket; 11. Bracket locating hole; 12. Support leg; 13. Limit groove; 14. L-shaped slider; 15. Horizontal plate; 16. Electric telescopic rod; 17. Bar support block; 18. Mobile car. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a positioning and docking structure for bumper frame welding, including a common reference plane 1, a first frame positioning pin 2 is fixedly installed on the top of the common reference plane 1, a second frame positioning pin 3 is fixedly installed on the top of the common reference plane 1, a bracket positioning pin 4 is fixedly installed on the top of the common reference plane 1, a limiting block 5 is fixedly installed on the top of the common reference plane 1, a clamping assembly 6 is fixedly installed on the top of the common reference plane 1, the top of the common reference plane 1 contacts with a bumper frame 7, a first frame positioning hole 8 is opened on the top of the bumper frame 7, and the outer wall of the second frame positioning pin 3 is connected to the inside of the first frame positioning hole 8, a second frame positioning hole 9 is opened on the top of the bumper frame 7, and the outer wall of the first frame positioning pin 2 is connected to the inside of the second frame positioning hole 9, an auxiliary bracket 10 is arranged on the top of the bumper frame 7, a bracket positioning hole 11 is opened on the top of the auxiliary bracket 10, and the outer wall of the bracket positioning pin 4 is connected to the inside of the bracket positioning hole 11.

[0024] The effect achieved by the entire embodiment 1 is that, since a first frame positioning hole 8 is opened on the top of the bumper frame 7, a second frame positioning hole 9 is opened on the top of the bumper frame 7, and a bracket positioning hole 11 is opened on the top of the auxiliary bracket 10, they are respectively mounted on the first frame positioning pin 2, the second frame positioning pin 3 and the bracket positioning pin 4 on the common reference plane 1, and secondly, a limit block 5 and a clamp assembly 6 are respectively fixedly installed on the top of the common reference plane 1, and the bumper frame 7 and the auxiliary bracket 10 are first welded with carbon dioxide shielded welding, so that the bumper frame 7 and the auxiliary bracket 10 can be clamped together on the common reference plane 1, and then they are welded and produced, without the need to redesign the one-piece sheet metal and reduce the investment in redeveloping the sheet metal mold, which greatly reduces the investment in development costs, and the clamp assembly 6 can ensure the consistency of the welded parts, and the part preparation degree is also very high, thereby improving the efficiency of workshop welding.

[0025] Embodiment 2, as Figure 2-Figure 4 As shown, four legs 12 are fixedly installed at the bottom of the common reference plane 1, wherein one side of the outer wall of the two legs 12 is provided with a limiting groove 13, and the inner surface walls of the two limiting grooves 13 are movably embedded with L-shaped sliders 14, wherein one side of the outer wall of the two legs 12 is fixedly installed with a cross plate 15, the top of the two cross plates 15 is fixedly installed with an electric telescopic rod 16, and the output ends of the two electric telescopic rods 16 are fixedly connected to the bottom of the two L-shaped sliders 14, the top of the two L-shaped sliders 14 is fixedly installed with a strip support block 17, and a moving vehicle 18 is fixedly installed between the bottoms of the four legs 12.

[0026] The effect achieved by the entire embodiment 2 is that, when the bumper frame 7 and the auxiliary bracket 10 are limited on the common reference plane 1, the two electric telescopic rods 16 on one side of one of the legs 12 are started as needed, and the two electric telescopic rods 16 are installed on the cross plate 15. Since the L-shaped sliders 14 fixedly installed at the output ends of the two electric telescopic rods 16 are movably embedded in the limiting grooves 13, the two electric telescopic rods 16 can drive the L-shaped sliders 14 and the strip support blocks 17 to move upward, and support the bumper frame 7, and the height can be adjusted to meet the support requirements of different shapes and heights, further improving the efficiency of the workshop welding operation.

[0027] Working principle: First, the bumper frame 7 and the auxiliary bracket 10 are welded with carbon dioxide shielded welding, and then the bumper frame 7 and the auxiliary bracket 10 are limited on the first frame locating pin 2, the second frame locating pin 3 and the bracket locating pin 4 respectively through the first frame locating hole 8, the second frame locating hole 9 and the bracket locating hole 11, the limit block 5 and the clamp assembly 6, so that the bumper frame 7 and the auxiliary bracket 10 can be clamped together on the common reference plane 1, and then the two electric telescopic rods 16 are started as needed to drive the L-shaped slider 14 and the strip support block 17 to move upward a suitable distance until they have a supporting effect on the bumper frame 7, and finally they are welded and produced, without the need to redesign the one-piece sheet metal and reduce the investment in redeveloping the sheet metal mold, which greatly reduces the investment in development costs, and the clamp assembly 6 can ensure the consistency of the welded parts, and the part preparation degree is also very high, thereby improving the efficiency of workshop welding.

[0028] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A positioning butt joint structure for bumper frame welding, comprising a common reference surface (1), characterized in that: A first frame locating pin (2) is fixedly installed on the top of the common reference plane (1), a second frame locating pin (3) is fixedly installed on the top of the common reference plane (1), a bracket locating pin (4) is fixedly installed on the top of the common reference plane (1), a limit block (5) is fixedly installed on the top of the common reference plane (1), a clamping assembly (6) is fixedly installed on the top of the common reference plane (1), the top of the common reference plane (1) contacts a bumper frame (7), a first frame locating hole (8) is opened on the top of the bumper frame (7), and the outer wall of the second frame locating pin (3) is connected to the inside of the first frame locating hole (8).

2. A positioning butt joint structure for bumper frame welding according to claim 1, characterized in that: A second frame positioning hole (9) is provided on the top of the bumper frame (7), and the outer wall of the first frame positioning pin (2) is connected to the inside of the second frame positioning hole (9).

3. A positioning butt joint structure for bumper frame welding according to claim 2, characterized in that: An auxiliary bracket (10) is arranged on the top of the bumper frame (7), a bracket positioning hole (11) is opened on the top of the auxiliary bracket (10), and the outer wall of the bracket positioning pin (4) is connected to the inside of the bracket positioning hole (11).

4. A positioning butt joint structure for bumper frame welding according to claim 3, characterized in that: Four supporting legs (12) are fixedly mounted on the bottom of the common reference surface (1), wherein one side of the outer wall of two of the supporting legs (12) is provided with a limiting groove (13).

5. A positioning butt joint structure for bumper frame welding according to claim 4, characterized in that: An L-shaped sliding block (14) is movably embedded in the inner surface wall of the two limiting grooves (13), and a transverse plate (15) is fixedly installed on one side of the outer wall of the two supporting legs (12).

6. A positioning butt joint structure for bumper frame welding according to claim 5, characterized in that: The tops of the two horizontal plates (15) are both fixedly mounted with electric telescopic rods (16), and the output ends of the two electric telescopic rods (16) are both fixedly connected to the bottoms of the two L-shaped sliding blocks (14).

7. A positioning butt joint structure for bumper frame welding according to claim 6, characterized in that: A strip-shaped support block (17) is fixedly installed on the top of each of the two L-shaped sliding blocks (14), and a moving vehicle (18) is fixedly installed between the bottoms of the four supporting legs (12).

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