Electric vehicle bumper welding tool

Abstract

The utility model discloses an electric vehicle bumper welding tool, relates to the technical field of electric vehicle accessories, and mainly solves the problems of improving the stability of pipes in the machining process and improving the working efficiency. An electric vehicle guard bar welding tool comprises a bottom plate and a guard bar body formed by welding pipes, a plurality of supporting frames are arranged on the bottom plate, the guard bar body is erected on the bottom plate through the supporting frames and a pressing plate, a positioning pin is arranged on the bottom plate, and the supporting frame located below the pressing plate comprises a movable plate and a housing arranged outside the movable plate in a sleeving mode. An elastic piece is arranged between the cover shell and the movable plate, a clamping piece is connected to the cover shell in an inserted mode, and when the protection bar body is fixed to the bottom plate through the positioning pin, the elastic piece pushes the movable plate to move till the movable plate, the protection bar body and the pressing plate are tightly attached, and the movable plate and the cover shell are connected in a clamped mode through the clamping piece. The movable plate is pushed to move upwards through the elastic piece, the movable plate and the cover shell are tightly attached while the cover shell limits movement of the movable plate, and then the fixing stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle accessories, in particular to an electric vehicle guard bar welding tool Background Art

[0002] Electric vehicles are widely used as a means of transportation with small size and low driving difficulty. In order to protect the exterior plastic parts of electric vehicles, avoid damage caused by external forces, and reduce injuries in accidents, and to fit the different shapes of electric vehicles, it is usually necessary to bend and weld the pipes. Since the bumper is usually made of metal, there will be a process of transformation from elastic deformation to plastic deformation and even fracture when bending. Therefore, when the pipe is completely bent at a certain angle and the external force is removed, the bent part will be affected by the elastic deformation and undergo a certain displacement, making it difficult for workers to weld it, seriously affecting work efficiency. Summary of the Invention

[0003] The purpose of this utility model is to address the above-mentioned problems in the existing technology and propose an electric vehicle bumper welding tool. The technical problem to be solved by this utility model is: how to improve the stability of the pipe during the processing and improve work efficiency.

[0004] The purpose of the utility model can be achieved through the following technical solutions: A welding tool for an electric vehicle bumper, comprising a base plate and a bumper body formed by welding a pipe, wherein a plurality of support frames are provided on the base plate, and the bumper body is mounted on the base plate through the support frames and a pressure plate, and a positioning pin is provided on the base plate, and is characterized in that the support frame located under the pressure plate comprises a movable plate and a cover shell mounted outside the movable plate, an elastic member is provided between the cover shell and the movable plate, and a snap-fitting member is plugged into the cover shell, and when the bumper body is fixed to the base plate by the positioning pin, the elastic member pushes the movable plate to move until the movable plate, the bumper body and the pressure plate are tightly fitted, and then the movable plate and the cover shell are snap-fitted together by the snap-fitting member.

[0005] The solution of the present application is mainly to fix the guard bar body to the base plate by the mutual cooperation between the positioning pins and the positioning plates, and to support it by arranging a number of support frames on the base plate, and to use pressure plates on some of the support frames to limit the up and down movement of the guard bar body, thereby completing the fixation of the guard bar body. Among them, since the shape of the guard bar varies a lot and only the pressure plates are used for fixation, the guard bar body will still have a certain offset. Therefore, the support frame is divided into a movable plate and a cover shell, and the movable plate is limited by the cover shell to prevent the movable plate from being offset during the fixation process due to the elastic deformation of the pipe. An elastic member is provided between the cover shell and the movable plate, and the movable plate is pushed upward by the elastic member. After contacting the guard bar body, a certain thrust is continuously applied upward to cooperate with the pressure plate located above, thereby ensuring the stability of the pressure plate and the movable plate in clamping the guard bar body, thereby reducing the displacement of the pipe due to elastic deformation after bending, improving stability and work efficiency, and reducing processing difficulty.

[0006] In the aforementioned electric vehicle bumper welding tool, a positioning rod is provided below the movable plate, a socket is provided on the housing, and the clamping member passes through the socket to connect to the positioning rod. A certain amount of movable space is provided between the upper and lower walls of the socket and the clamping member. Providing a certain amount of movable space between the clamping member and the upper and lower walls of the socket ensures that the elastic member can always provide an upward thrust, thereby improving the stability of the clamping between the movable plate and the pressure plate.

[0007] In the aforementioned electric vehicle bumper welding tool, the housing has two side walls with grooves arranged sequentially along the direction of movement of the movable plate. The engaging elements comprise two symmetrically arranged steel balls and a spring positioned between the balls, which forces the balls into the grooves. The balls engage the grooves to form a locking connection, preventing contact between the interior and the outside world, thereby reducing the risk of aging or corrosion of the elastic element from such contact.

[0008] In the aforementioned electric vehicle bumper welding tool, the bumper body comprises a main pipe, a secondary pipe, and a connecting pipe. These pipes form a triangle, with the two ends of the triangle engaging with the semicircular grooves on the movable plate via two pressure plates. Connecting the main pipe, secondary pipe, and connecting pipe to form a triangle increases the torsional rigidity of the bumper.

[0009] In the above-mentioned electric vehicle bumper welding tool, one end of the positioning pin is plugged with a base, and when the bumper body is set on the bottom plate, the base is fitted with the positioning plate.

[0010] In the above-mentioned electric vehicle bumper welding tool, a connecting plate is provided on the bottom plate, a hinged rod is provided on the connecting plate, one end of the hinged rod is connected to the pressure plate, and the pressure plate is fixed by the dead point position of the hinged rod.

[0011] In the above-mentioned electric vehicle bumper welding tool, one end of the hinged rod is provided with a strip hole, the hinged rod is connected to one end of the pressure plate through a clamping shaft, and the clamping shaft can move back and forth in the strip hole.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The present application arranges the main pipe, auxiliary pipe and connecting pipe in the semicircular groove on the support frame, and improves the stability of the welding process through the cooperation between the pressure plate and the support frame, wherein the movable plate of the support frame is limited by the cover shell, thereby improving the stability of the movable plate during reciprocating movement, reducing the influence of partial elastic deformation of the pipe on welding after bending, and applying an upward thrust to the movable plate through the elastic part, and leaving a certain movable space in the plug hole, so that it can adapt to pipes of various thicknesses while ensuring the close fit of the pressure plate, pipe and the semicircular groove on the movable plate, thereby improving the stability of the pipe during welding, reducing the processing difficulty of welding, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 2 is a schematic left-side half-section view of the support frame of Example 1;

[0016] Figure 3 is a front half-section schematic diagram of the support frame of Example 2;

[0017] In the figure, 1 is the bottom plate; 2 is the guard bar body; 2a is the pipe; 2a1 is the main pipe; 2a2 is the auxiliary pipe; 2a3 is the connecting pipe; 2b is the positioning plate; 3 is the support frame; 3a is the cover; 3a1 is the plug hole; 3a2 is the groove; 3b is the movable plate; 3b1 is the positioning rod; 3b2 is the semicircular groove; 3c is the elastic member; 3d is the clamping member; 3d1 is the pin; 3d2 is the spring; 3d3 is the steel ball; 4 is the pressure plate; 5 is the positioning pin; 6 is the base; 7 is the connecting plate; 7a is the hinge rod; 7a1 is the strip hole; 7b1 is the clamping shaft; DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] Example 1

[0020] like Figure 1As shown, the present application is provided with a base plate 1, a support frame 3 and a hinged rod 7a from bottom to top, and the hinged rod 7a is connected to the pressure plate 4 through a clamping shaft 7b1, and the guard bar body 2 is located between the support frame 3 and the pressure plate 4, and the guard bar body 2 includes a main pipe 2a1, a sub-pipe 2a2 and a connecting pipe 2a3 connecting the main pipe 2a1 and the sub-pipe 2a2, and the main pipe 2a1 and the sub-pipe 2a2 are respectively provided with positioning plates 2b located on both sides of the guard bar body 2, and the base plate 1 is provided with positioning pins 5 and a base 6 corresponding to the positioning plate 2b, wherein the support frame 3 located below the pressure plate 4 includes a movable plate 3b and a cover shell 3a, the movable plate 3b is located in the cover shell 3a, and the cover shell 3a is provided with a plug hole 3a1 and a pin shaft 3d1 cooperating with the plug hole 3a1, and the plug hole 3a1 is a strip hole, so that the pin shaft 3d1 has a certain movable space. The end of the movable plate 3b that contacts the bumper body 2 is equipped with a semicircular groove 3b2. The movable space specifically allows the pin 3d1 to move up and down. The main pipe 2a1, auxiliary pipe 2a2, and connecting pipe 2a3 are interconnected and form a triangle. The pressure plate is connected to the connecting plate via a hinged rod.

[0021] like Figure 2 As shown, it can be concluded from the cross-sectional diagram that the support frame 3 includes a cover shell 3a and a movable plate 3b. The movable plate 3b is sleeved in the cover shell 3a. A plug-in hole 3a1 is provided on the side wall of the cover shell 3a. A pin shaft 3d1 is inserted into the plug-in hole 3a1. One end of the movable plate 3b is in contact with the guard bar body 2, and a positioning rod 3b1 is provided at the other end. The pin shaft 3d1 can pass through the plug-in hole 3a1 and be connected to the positioning rod 3b1 by snapping. The positioning rod 3b1 is located at the symmetrical center of the movable plate 3b and extends into the interior of the cover shell 3a. Elastic members 3c are provided on both sides of the positioning rod 3b1. One end of the elastic member 3c is in contact with the inner wall of the cover shell 3a, and the other end is locked with the lower end face of the movable plate 3b. Directly above the movable plate 3b, a pressure plate 4 in contact with the guard bar body 2 is provided.

[0022] This technical solution mainly supports the guard bar body 2 by the original support seat and uses the positioning plate 2b to limit it, so as to prevent the main pipe 2a1, the auxiliary pipe 2a2 and the connecting pipe 2a3 from shaking during the welding process, and facilitates welding. On the basis of this, the support plate is separated into a movable plate 3b and a cover shell 3a, and a semicircular groove 3b2 is opened on the movable plate 3b. Since an elastic member 3c is provided between the movable plate 3b and the cover shell 3a, and the movable plate 3b is sleeved in the cover shell 3a, and is fixedly connected to the cover shell 3a by a pin shaft 3d1 passing through the plug hole 3a1 and the positioning rod 3b1. In the figure, the plug-in hole 3a1 is a strip-shaped hole. Therefore, while limiting the movable plate 3b, the elastic member 3c can push the movable plate 3b to move upward, so that it can be used for pipes 2a of different diameters. When the pin 3d1 is snap-connected with the positioning rod 3b1, there is a certain amount of space for upward and downward movement in the plug-in hole 3a1, so that under the action of the elastic member 3c, the semicircular groove 3b2 on the movable plate 3b fits tightly with the guard bar, and can be snap-connected to avoid the movable plate 3b from moving up and down during welding, thereby improving the stability during welding and reducing the difficulty of welding.

[0023] Among them, a pressure plate 4 is set above the movable plate 3b, and when the hinged rod 7a is in the dead point position, the pressure plate 4 is fitted with the guard bar body 2, so that the guard bar body 2 is not only subjected to a certain thrust by the elastic member 3c pushing the movable plate 3b to move upward, but also can be blocked by the pressure plate 4, so that the three are tightly fitted.

[0024] The main pipe 2a1, the auxiliary pipe 2a2 and the connecting pipe 2a3 are matched with each other to form a triangle, thereby improving the stability of the guard bar body 2 after welding, and the positioning plates 2b are set on both sides of the guard bar body 2 and fixed by positioning pins 5, thereby avoiding left and right shaking between the main pipe 2a1 and the auxiliary pipe 2a2 when welding the connecting pipe 2a3, thereby improving stability, and the pressure plate 4 is connected to the hinge rod 7a through the clamping shaft 7b1, wherein the clamping shaft 7b1 is set on the strip hole 7a1, thereby facilitating the adjustment of the pressure plate 4.

[0025] Example 2

[0026] like Figure 3 As shown, the technical solutions of this embodiment are basically the same as those of the first embodiment, except that a plurality of grooves 3a2 are provided on the side wall of the cover 3a, and the grooves 3a2 are evenly arranged along the moving direction of the movable plate 3b. A clamping member 3d composed of a spring 3d2 and a steel ball 3d3 is provided on the positioning rod 3b1 below the movable plate 3b, which pushes the steel balls 3d3 on both sides to cooperate with the grooves 3a2 through the spring 3d2, thereby forming a clamping connection between the movable plate 3b and the cover 3a.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0028] Although this article frequently uses terms such as 1. bottom plate; 2. guard bar body; 2a. pipe; 2a1. main pipe; 2a2. auxiliary pipe; 2a3. connecting pipe; 2b. positioning plate; 3. support frame; 3a. cover; 3a1. plug hole; 3a2. groove; 3b. movable plate; 3b1. positioning rod; 3b2. semicircular groove; 3c. elastic member; 3d. clamping member; 3d1. pin; 3d2. spring; 3d3. steel ball; 3e. movable space; 4. pressure plate; 5. positioning pin; 6. base; 7. connecting plate; 7a. hinged rod; 7a1. strip hole; 7b1. clamping shaft, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A welding tool for an electric vehicle bumper, comprising a base plate (1) and a bumper body (2) formed by welding a pipe (2a), wherein the base plate (1) is provided with a plurality of support frames (3), the bumper body (2) is mounted on the base plate (1) through the support frames (3) and a pressure plate (4), and a positioning pin (5) is provided on the base plate (1), characterized in that: The support frame (3) located under the pressure plate (4) includes a movable plate (3b) and a cover shell (3a) sleeved on the movable plate (3b); an elastic member (3c) is provided between the cover shell (3a) and the movable plate (3b); a clamping member (3d) is plugged and connected to the cover shell (3a); when the guard bar body (2) is fixed to the bottom plate (1) through the positioning pin (5), the elastic member (3c) pushes the movable plate (3b) to move until the movable plate (3b), the guard bar body (2) and the pressure plate (4) are tightly fitted, and the movable plate (3b) and the cover shell (3a) are clamped and connected through the clamping member (3d).

2. The electric vehicle bumper welding tool according to claim 1, characterized in that: A positioning rod (3b1) is provided below the movable plate (3b), a plug hole (3a1) is provided on the cover shell (3a), the clamping member (3d) passes through the plug hole (3a1) and is connected to the positioning rod (3b1), and a certain movable space exists between the upper and lower walls of the plug hole (3a1) and the clamping member (3d).

3. The electric vehicle bumper welding tool according to claim 1, characterized in that: A plurality of grooves (3a2) are provided on both side walls of the cover shell (3a), and the grooves (3a2) are arranged in sequence along the moving direction of the movable plate (3b). The clamping member (3d) comprises two symmetrically arranged steel balls (3d3) and a spring (3d2) located between the two steel balls (3d3). The spring (3d2) pushes the steel balls (3d3) to be embedded in the grooves (3a2).

4. The electric vehicle bumper welding tool according to any one of claims 1 to 3, characterized in that: The guard bar body (2) comprises a main pipe (2a1), a secondary pipe (2a2) and a connecting pipe (2a3); the main pipe (2a1), the secondary pipe (2a2) and the connecting pipe (2a3) cooperate to form a triangle, and the two ends of the triangle are respectively fitted with the semicircular groove (3b2) on the movable plate (3b) through two pressing plates (4).

5. The electric vehicle bumper welding tool according to any one of claims 1 to 3, characterized in that: One end of the positioning pin (5) is plugged with a base (6), and a positioning plate (2b) is provided on the guard bar body (2); when the guard bar body (2) is set on the bottom plate (1), the base (6) and the positioning plate (2b) are in contact with each other.

6. The electric vehicle bumper welding tool according to claim 1, characterized in that: A connecting plate (7) is provided on the bottom plate (1), a hinge rod (7a) is provided on the connecting plate (7), and one end of the hinge rod (7a) is connected to the pressing plate (4).

7. The electric vehicle bumper welding tool according to claim 6, characterized in that: One end of the hinge rod (7a) is provided with a strip hole (7a1), and the hinge rod (7a) is connected to one end of the pressure plate (4) via a clamping shaft (7b1), and the clamping shaft (7b1) can move back and forth in the strip hole (7a1).

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