Welding positioning device for vehicle head tube

Abstract

The utility model discloses a welding positioning device for a vehicle head tube. The welding positioning device comprises a device body, the head tube and a headlight support. A vertical seat is arranged on the device body, and a limiting seat is arranged on one side of the vertical seat; the head tube stands on the vertical seat; the front lamp bracket is positioned between the head tube and the limiting seat; when the head tube is close to the limiting seat, the headlight bracket is pushed against the limiting seat; and downward pressing mechanisms are oppositely arranged above the vertical seats, and when the downward pressing mechanisms press the head pipe, the headlight support is locked between the head pipe and the limiting seat. The side, away from the head tube, of the headlight support is provided with an inclined face, and the side, facing the head tube, of the limiting base is provided with an abutting inclined face. When the headlight support abuts against the limiting base, the inclined face is correspondingly attached to the abutting inclined face. An inclined hole is formed in the inclined surface and vertically penetrates through the inclined surface; an inclined positioning pin is arranged on the abutting inclined surface, and when the inclined surface is attached to the abutting inclined surface, the inclined positioning pin is correspondingly inserted into the inclined open hole. Welding positioning of the head tube and the front lamp support can be achieved, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of electric vehicle frames, in particular to a welding positioning device for a vehicle head pipe. Background Art

[0002] The head pipe is an important part of the electric vehicle frame. During the production process of the head pipe, the corresponding bracket structure will be welded on the head pipe, and a suitable welding positioning device is needed to assist the welding. In the existing head pipe welding positioning device, in order to make the head pipe and the headlight bracket close together, a push-up mechanism is used to push the headlight bracket to abut against the head pipe, but the structure of the push-up mechanism is relatively complex and there is room for improvement. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a welding positioning device for a vehicle head pipe, which can realize the welding positioning of the head pipe and the headlight bracket and has a relatively simple structure.

[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a welding positioning device for a vehicle head pipe, comprising a device body, a head pipe to be welded and a headlight bracket; a stand is provided on the device body, and a limit seat is provided on one side of the stand; the head pipe stands on the stand, and the headlight bracket is located between the head pipe and the limit seat; when the head pipe leans against the limit seat, the headlight bracket is pushed against the limit seat; a pressing mechanism is relatively provided above the stand, and when the pressing mechanism presses the head pipe, the headlight bracket is locked between the head pipe and the limit seat.

[0005] Furthermore, the headlight bracket has an inclined surface on the side away from the head pipe, and the limiting seat has an abutting inclined surface on the side facing the head pipe; when the headlight bracket abuts against the limiting seat, the inclined surface corresponds to and fits with the abutting inclined surface.

[0006] Furthermore, the inclined surface is provided with an inclined opening, which vertically penetrates the inclined surface; the abutting inclined surface is provided with an inclined positioning pin, and when the inclined surface and the abutting inclined surface are in contact, the oblique positioning pin is correspondingly inserted into the oblique opening.

[0007] Furthermore, a vertical positioning hole is provided on the headlight bracket, and a vertical positioning column is provided on the limiting seat; when the inclined surface is in contact with the abutting inclined surface, the vertical positioning column is correspondingly inserted into the vertical positioning hole.

[0008] Furthermore, the vertical positioning column can be vertically extended and retracted on the limiting seat; when the oblique positioning pin is inserted into the oblique opening, the headlight bracket is displaced obliquely, and the top end of the vertical positioning column is abutted against the headlight bracket and then adaptively extended and retracted.

[0009] Furthermore, the cross-sectional area of ​​the vertical positioning column is smaller than the cross-sectional area of ​​the vertical positioning hole; during the process of inserting the oblique positioning pin into the oblique opening, the headlight bracket is displaced obliquely, the vertical positioning column is obliquely inserted into the vertical positioning hole, and connected with the side edge of the vertical positioning hole close to the head pipe.

[0010] Furthermore, when the head pipe pushes the headlight bracket to be tightly attached to the limiting seat, the head pipe is in a vertical state.

[0011] Beneficial effects: The utility model provides a welding positioning device for a vehicle head pipe, which fixes the head pipe by the cooperation of a stand and a downward pressing mechanism, and locks the headlight bracket by the cooperation of the head pipe and a limiting seat. The overall structure is simple, and the welding positioning of the head pipe and the headlight bracket can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 This is a schematic diagram of the overall structure of the welding positioning device of the utility model;

[0013] Attached Figure 2 It is a structural schematic diagram of the headlight bracket and the limit seat;

[0014] Attached Figure 3 It is a schematic diagram of the coordination between the oblique opening and the oblique positioning pin. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] As attached Figures 1 to 3 The welding positioning device for a vehicle head pipe comprises a device body 1 and a head pipe 2 and a headlight bracket 3 to be welded. Figure 1 As shown in , a stand 4 is provided on the device body 1, and a limiting seat 5 is provided on one side of the stand 4. When the head pipe 2 and the headlight bracket 3 need to be welded and positioned, the head pipe 2 stands on the stand 4 accordingly, and the headlight bracket 3 is located between the head pipe 2 and the limiting seat 5. When the head pipe 2 leans against the limiting seat 5, that is, the lower end of the head pipe 2 remains standing on the stand 4, and the upper end of the head pipe 2 leans toward the head pipe 2, the head pipe 2 can push the headlight bracket 3 against the limiting seat 5. A pressing mechanism 6 is relatively provided above the stand 4. When the pressing mechanism 6 presses the head pipe 2 downward, the headlight bracket 3 is locked between the head pipe 2 and the limiting seat 5, thereby realizing the welding positioning of the head pipe 2 and the headlight bracket 3.

[0017] As attached Figure 1As shown in , when the head tube 2 pushes the headlight bracket 3 to be tightly attached to the limiting seat 5, the head tube 2 is in a vertical state, and at this time, the pressing mechanism 6 is pressed against the top of the head tube 2. The pressing mechanism 6 includes a pressing column, the lower end of which is adapted to the shape of the top of the head tube 2. Under electric drive, the pressing column moves downward and positions the top of the head tube 2. The shape of the stand 4 is adapted to the shape of the bottom end of the head tube 2, so the stand 4 can position the bottom end of the head tube 2. After the head tube 2 is positioned, the head tube 2 itself can also be used as a positioning component, and the head tube 2 and the limiting seat 5 cooperate to position the headlight bracket 3. Compared with the traditional positioning method of using a push-up mechanism to push the headlight bracket 3 against the head tube 2, the positioning structure of the utility model will be simpler and more reasonable.

[0018] As attached Figure 2 As shown in the figure, the side of the headlight bracket 3 away from the head tube 2 has an inclined surface 7, and the side of the limit seat 5 facing the head tube 2 has an abutting inclined surface 8. When the headlight bracket 3 abuts on the limit seat 5, the inclined surface 7 and the abutting inclined surface 8 are correspondingly fitted. The side of the headlight bracket 3 close to the head tube 2 is provided with an arc interface 13, and the shape of the arc interface 13 is adapted to the outer contour of the head tube 2, so that the headlight bracket 3 can be welded and connected to the head tube 2 through the arc interface 13.

[0019] As attached Figure 2 As shown in FIG. 1 , the oblique surface 7 is provided with an oblique opening 9, and the oblique opening 9 vertically penetrates the oblique surface 7. Figure 3 As shown in , the abutting inclined surface 8 is provided with an oblique positioning pin 10. When the oblique surface 7 is in contact with the abutting inclined surface 8, the oblique positioning pin 10 is correspondingly inserted into the oblique opening 9, so that the headlight bracket 3 and the limiting seat 5 will not slide relative to each other, thereby realizing the positioning of the headlight bracket 3.

[0020] As attached Figure 2 As shown in the figure, the headlight bracket 3 is provided with a vertical positioning hole 11, and the limiting seat 5 is provided with a vertical positioning column 12. When the inclined surface 7 is in contact with the abutting inclined surface 8, the vertical positioning column 12 is correspondingly inserted into the vertical positioning hole 11 to improve the limiting ability of the limiting seat 5 on the headlight bracket 3.

[0021] In one embodiment, the vertical positioning column 12 can be vertically extended and retracted on the limiting seat 5, and a vertical extension hole is provided on the limiting seat 5. The lower end of the vertical positioning column 12 is located in the extension hole, and the lower end of the vertical positioning column 12 is connected to the bottom of the extension hole through an elastic member, so that the vertical positioning column 12 can be vertically extended and retracted in the extension hole. During the process of inserting the oblique positioning pin 10 into the oblique opening 9, the headlight bracket 3 will be displaced obliquely. If the vertical positioning column 12 cannot be extended and retracted, the vertical positioning column 12 cannot be inserted into the vertical positioning hole 11 and cannot be positioned in coordination. When the vertical positioning column 12 can be extended and retracted, as the headlight bracket 3 is displaced obliquely, the top end of the vertical positioning column 12 will abut against the headlight bracket 3, and then the vertical positioning column 12 will be adaptively extended and retracted. After the vertical positioning column 12 is opposite to the vertical positioning hole 11, the vertical positioning column 12 will extend into the vertical positioning hole 11.

[0022] In one embodiment, the cross-sectional area of ​​the vertical positioning column 12 is smaller than the cross-sectional area of ​​the vertical positioning hole 11. When the oblique positioning pin 10 is inserted into the oblique opening 9, the headlight bracket 3 will move in an oblique direction. Figure 2 As shown in the figure, the cross section of the vertical positioning column 12 is circular, and the cross section of the vertical positioning hole 11 is oblong. Since the cross section of the vertical positioning column 12 is smaller, the vertical positioning column 12 can be inserted obliquely into the vertical positioning hole 11 without causing motion interference when the headlight bracket 3 is displaced obliquely. When the head pipe 2 pushes the headlight bracket 3 to be tightly against the limit seat 5, the vertical positioning column 12 is connected to the side edge of the vertical positioning hole 11 close to the head pipe 2 to achieve positioning.

[0023] The utility model provides a welding positioning device for a vehicle head pipe, which provides a welding positioning method for a head pipe 2 and a headlight bracket 3, can realize the clamping positioning of the head pipe 2 and the headlight bracket 3, facilitates welding, and has the advantage of a simple structure.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding positioning device for a vehicle head pipe, characterized in that: The device comprises a device body (1) and a head pipe (2) and a headlight bracket (3) to be welded; a stand (4) is arranged on the device body (1), and a limit seat (5) is arranged on one side of the stand (4); the head pipe (2) stands on the stand (4), and the headlight bracket (3) is located between the head pipe (2) and the limit seat (5); when the head pipe (2) is close to the limit seat (5), the headlight bracket (3) is pushed against the limit seat (5); a pressing mechanism (6) is arranged above the stand (4), and when the pressing mechanism (6) presses the head pipe (2), the headlight bracket (3) is locked between the head pipe (2) and the limit seat (5).

2. A welding positioning device for a vehicle head pipe according to claim 1, characterized in that: The side of the headlight bracket (3) away from the head tube (2) is provided with an inclined surface (7), and the side of the limiting seat (5) facing the head tube (2) is provided with an abutting inclined surface (8); when the headlight bracket (3) abuts against the limiting seat (5), the inclined surface (7) and the abutting inclined surface (8) are correspondingly fitted.

3. A welding positioning device for a vehicle head pipe according to claim 2, characterized in that: The inclined surface (7) is provided with an inclined opening (9), and the inclined opening (9) vertically penetrates the inclined surface (7); the abutting inclined surface (8) is provided with an inclined positioning pin (10), and when the inclined surface (7) and the abutting inclined surface (8) are in contact, the inclined positioning pin (10) is correspondingly inserted into the inclined opening (9).

4. The welding positioning device for a vehicle head pipe according to claim 3, characterized in that: The headlight bracket (3) is provided with a vertical positioning hole (11), and the limit seat (5) is provided with a vertical positioning column (12); when the inclined surface (7) and the abutting inclined surface (8) are in contact, the vertical positioning column (12) is correspondingly inserted into the vertical positioning hole (11).

5. The welding positioning device for a vehicle head pipe according to claim 4, characterized in that: The vertical positioning column (12) can be vertically extended and retracted on the limiting seat (5); when the oblique positioning pin (10) is inserted into the oblique opening (9), the headlight bracket (3) is displaced in an oblique direction, and the top end of the vertical positioning column (12) is abutted against the headlight bracket (3) and then adaptively extended and retracted.

6. The welding positioning device for a vehicle head pipe according to claim 4, characterized in that: The cross-sectional area of ​​the vertical positioning column (12) is smaller than the cross-sectional area of ​​the vertical positioning hole (11); when the oblique positioning pin (10) is inserted into the oblique opening (9), the headlight bracket (3) is displaced in an oblique direction, and the vertical positioning column (12) is obliquely inserted into the vertical positioning hole (11) and connected to a side edge of the vertical positioning hole (11) close to the head pipe (2).

7. A welding positioning device for a vehicle head pipe according to any one of claims 1 to 6, characterized in that: When the head pipe (2) pushes the headlight bracket (3) until it is tightly attached to the limiting seat (5), the head pipe (2) is in a vertical state.

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