Car body welding fixture

Abstract

The utility model discloses a vehicle body welding clamp which comprises a bottom plate, a base plate is arranged above the bottom plate, a guide rail is arranged on the bottom plate, a sliding block is arranged at the bottom of the base plate, the sliding block is matched with the guide rail, and a pressing locking device is arranged on the bottom plate. By means of the vehicle body welding clamp, convenience of welding operation is improved, and normal operation of welding operation is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of vehicle body fixture, concretely, the utility model relates to a vehicle body welding fixture. BACKGROUND

[0002] At present, the fixture adopts the mode of overturning to carry out secondary assembly to the vehicle body, because the existing fixture structure is designed as a fixed structure, the space between the fixture parts and the parts is narrow in the open state, leading to very inconvenient welding operation, and the stability is poor during the overturning and pressing process of the welding parts, which is easy to fall off, affecting the normal production efficiency.

[0003] The utility model patent with publication number CN218225327U discloses a tool fixture and an upper vehicle body for welding and reinforcing the upper vehicle body, and the tool fixture comprises: a transition pipe beam, which is arranged in parallel in two pieces, and two ends of the transition pipe beam are provided with a fixing assembly; the fixing assembly comprises a quick clamp, a pressing arm, a connecting block, a transition plate, a pressing block and a supporting block; wherein, the connecting block is designed with a platform part and a vertical part, the top of the platform part is connected with the pressing arm and the transition pipe beam, and the Y-direction of the vertical part is connected with the pressing block; the quick clamp is designed on the X-direction side of the transition pipe beam, the bottom is connected with the transition plate, and the Y-direction side is connected with the pressing arm. The tool fixture for welding and reinforcing the upper vehicle body cannot solve the above-mentioned technical problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at the shortage of prior art, and provides a vehicle body welding fixture which improves the convenience of welding operation and ensures normal welding operation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The vehicle body welding fixture comprises a bottom plate, a base plate is arranged above the bottom plate, a guide rail is arranged on the bottom plate, a sliding block is arranged at the bottom of the base plate, the sliding block is matched with the guide rail, a pressing and locking device is arranged on the bottom plate, a support is arranged on the base plate, and the support is provided with a positioning pin.

[0007] A connecting seat is arranged on the base plate, a handle is hingedly connected to the connecting seat, an installation shaft is fixedly connected to the end of the handle, the installation shaft extends out of the handle at both ends, the pressing and locking device comprises a pull rod, the end of the pull rod penetrates through the installation shaft, a threaded part is arranged at the end of the pull rod, the threaded part is connected with a limiting nut, and the limiting nut is arranged on both sides of the installation shaft; a base is further arranged on the bottom plate, and a pull hook is arranged at the top of the base.

[0008] The pull rod is in U-shaped structure.

[0009] The support is provided with two supports, and the positioning pin is arranged horizontally.

[0010] The support top is provided with a clamp, and the clamp comprises a pressing block.

[0011] The bottom plate is provided with a buffer seat, and the base plate is provided with a buffer rod.

[0012] The bottom plate is provided with a stop block, and the stop block is arranged in pairs, the base side is provided with a buffer block, and the stop block and the buffer block are respectively located on both sides of the base plate.

[0013] The bottom plate and the base plate are both provided with positioning holes.

[0014] The technical effect of the utility model is: the body welding fixture of the utility model, through the use of guide rail, realize the horizontal movement of base plate, expand the space of fixture component and part, improve the convenience for welding operation, replace the existing technology adopts the mode of turning over to the body for secondary assembly, avoid the problem that welding parts are easy to fall due to turning over, ensure that the welding operation process is carried out normally, greatly improve the work efficiency of trial production personnel, and the stable position of the base plate after position adjustment is guaranteed by the pressing and locking device, which is reliable and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1 It is the structure schematic view of the body welding fixture of the utility model;

[0017] Figure 2 It is the structure schematic view of the base plate assembly of the utility model;

[0018] Figure 3 It is the structure schematic view of the support of the utility model;

[0019] Figure 4 It is the structure schematic view of the pressing and locking device of the utility model;

[0020] Figure 5 It is the structure schematic view of the connecting seat of the utility model.

[0021] Marked as in the figure: 1, bottom plate; 2, base plate; 3, guide rail; 4, sliding block; 5, support; 6, positioning pin; 7, clamp; 8, pressing block; 9, fixed seat; 10, connecting seat; 11, handle; 12, mounting shaft; 13, pull rod; 14, threaded portion; 15, limit nut; 16, base; 17, drag hook; 18, buffer block; 19, stop block; 20, buffer seat; 21, buffer rod; 22, positioning hole; 23, wrench; 24, connecting rod; 25, supporting block; 26, stepped pin shaft, DETAILED DESCRIPTION

[0022] The specific embodiments of the present application are further described in detail below with reference to the drawings, and the purpose is to help the technical personnel in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical scheme of the present application, and to facilitate its implementation.

[0023] As Figure 1 shown, the vehicle body welding fixture comprises a bottom plate 1, a base plate 2 is arranged above the bottom plate 1, a guide rail 3 is arranged on the bottom plate 1, a sliding block 4 is arranged at the bottom of the base plate 2, the sliding block 4 cooperates with the guide rail 3, a pressing and locking device is arranged on the bottom plate 1; a support 5 is arranged on the base plate 2, and the support 5 is provided with a positioning pin 6. The base plate 2 realizes position movement under the cooperation of the sliding block 4 and the guide rail 3, increases the space between the fixture and the vehicle body, facilitates welding and secondary assembly operation, and the relative position between the bottom plate 1 and the base plate 2 is stabilized through the pressing and locking device, thereby improving the stability of the welding operation; the parts are horizontally clamped on the fixture through the positioning pin 6, and the pressing block 8 is used for pressing at the same time, so that the clamping process is stable and not easy to fall off, and the purpose of improving work efficiency is achieved.

[0024] As Figure 2 and Figure 4 shown, the base plate 2 is provided with a connecting seat 10, a handle 11 is hingedly connected to the connecting seat 10, an installation shaft 12 is fixedly connected to the end of the handle 11, the installation shaft 12 extends out of the handle 11 at both ends, the pressing and locking device comprises a pull rod 13, the end of the pull rod 13 penetrates through the installation shaft 12, the end of the pull rod 13 is provided with a threaded portion 14, the threaded portion 14 is connected with a limiting nut 15, and the limiting nut 15 is located on both sides of the installation shaft 12; the bottom plate 1 is further provided with a base 16, and the top of the base 16 is provided with a pull hook 17. The connecting seat 10 provides a hinge point for the handle 11, and the handle 11 is used for an operator to control the fixation or locking of the base plate 2; the hinge point of the installation shaft 12 and the handle 11 is located at different positions of the handle 11, the pull rod 13 can be separated from the pull hook 17 when the handle 11 is lifted, and the pull rod 13 can cooperate with the pull hook 17 when the handle 11 is lowered. The cooperation of the threaded portion 14 and the limiting nut 15 realizes the movement control of the limiting nut 15 to change the distance from the middle of the pull rod 13 to the installation shaft 12, the limiting nut 15 can change the length of the pull rod 13 after the base plate 2 moves to the corresponding position along the guide rail 3, so that the pull rod 13 and the pull hook 17 can always cooperate, the base plate 2 is locked and pressed, and the limiting nut 15 also fixes and limits the pull rod 13. The pressing and locking device is provided with two groups, which is conducive to further improving the fixation effect.

[0025] As Figure 4 shown, the pull rod 13 is in a U-shaped structure. The pull rod 13 is composed of a straight rod with threads at both ends, which is bent to form a U shape, the middle part of the pull rod 13 is used as a cooperation part with the pull hook 17, and the threaded portions 14 at both ends are used as the connection parts of the limiting nut 15 and the installation shaft 12, so that the pull rod 13 cannot be separated from the installation shaft 12 or the handle 11, and can stably cooperate with the pull hook 17.

[0026] As shown in Figure 1 , the bracket 5 is provided with two horizontal positioning pins 6. The two brackets 5 are respectively located at the two ends of the base plate 2, the bottom of the bracket 5 is an L-shaped fixing seat 9 with a reinforcing rib, and a plurality of hole positions are provided on the base plate 2 for connecting the fixing seat 9, so that the position of the bracket 5 can be changed according to the situation, improving the applicability of the clamp. The two positioning pins 6 can fix the parts in advance, stabilize the part posture, and avoid falling. When the base plate 2 moves to the working position, the positioning pin 6 is inserted into the body positioning hole 22, and at the same time, the pressing block 8 can be used to press the edge of the vehicle body, further stabilizing the welding operation process,

[0027] As shown in Figure 3 , the top of the bracket 5 is provided with a clamp 7, and the clamp 7 includes a pressing block 8. The top of the bracket 5 is provided with a supporting block 25, and the pressing block 8 is located above the supporting block 25. The clamp 7 is a commonly used clamp structure, and the pressing block 8 is driven by the wrench 23 and the connecting rod 24 to realize the pressing function, so as to press the edge of the vehicle body and improve the stability during the welding of the vehicle body.

[0028] As shown in Figure 2 , the bottom plate 1 is provided with a buffer seat 20, and the base plate 2 is provided with a buffer rod 21. The buffer rod 21 buffers the movement of the base plate 2 along the guide rail 3, avoiding the influence of excessive movement on the installation accuracy of the components on the base plate 2.

[0029] As shown in Figure 2 , the bottom plate 1 is provided with a stop block 19, and the base plate 2 is provided with a buffer block 18. The stop block 19 and the buffer block 18 are respectively located on the two sides of the base plate 2. The stop block 19 and the buffer block 18 limit the movement of the base plate 2 along the guide rail 3.

[0030] As shown in Figure 2 , the bottom plate 1 and the base plate 2 are both provided with positioning holes 22. The positioning holes 22 of the bottom plate 1 and the base plate 2 are fixed by inserting a stepped pin shaft 26, improving the stability of the base plate 2 and the components on the base plate in the reset initial state.

[0031] The operation mode is as follows: in the initial state, the base plate 2 is moved away from the vehicle body along the guide rail 3, the parts are fixed in advance by the positioning pin 6, then the base plate 2 is moved close to the vehicle body along the guide rail 3, and after reaching the set distance, the clamp 7 is selected to press the edge of the vehicle body according to the situation, the handle 11 is lifted to insert the pull rod 13 into the pull hook 17, and then the pull rod 13 is lowered to lock the base plate 2, ensuring that the parts and the vehicle body do not have relative displacement. The above operation is performed simultaneously on both sides of the vehicle body, and then the welding operation can be performed.

[0032] The body welding fixture realizes horizontal movement of the base plate 2 through use of the guide rail 3, expands the space of the fixture components and parts, improves the convenience of welding operation, replaces the prior art mode of turning over the body for secondary assembly, simultaneously avoids the problem that the welding parts are prone to falling due to turning over, guarantees normal welding operation, and greatly improves the work efficiency of trial production personnel; and the position adjustment stability of the base plate 2 after position adjustment is guaranteed by the pressing and locking device, which is reliable and convenient to use.

[0033] The utility model has been described above in conjunction with the drawings. Obviously, the specific implementation of the utility model is not limited by the above mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A vehicle body welding fixture, characterized in that: Includes a base plate (1), a base plate (2) above the base plate (1), a guide rail (3) on the base plate (1), a slider (4) at the bottom of the base plate (2), the slider (4) cooperating with the guide rail (3), a clamping and locking device on the base plate (1); a bracket (5) on the base plate (2), and a positioning pin (6) on the bracket (5).

2. The vehicle body welding fixture according to claim 1, characterized in that: The base plate (2) is provided with a connecting seat (10), and a handle (11) is hinged on the connecting seat (10). The end of the handle (11) is fixedly connected to a mounting shaft (12). Both ends of the mounting shaft (12) extend out of the handle (11). The clamping locking device includes a pull rod (13). The end of the pull rod (13) passes through the mounting shaft (12). The end of the pull rod (13) is provided with a threaded part (14). The threaded part (14) is connected to a limit nut (15). The limit nut (15) is located on both sides of the mounting shaft (12). The base plate (1) is also provided with a base (16). The top of the base (16) is provided with a hook (17).

3. The vehicle body welding fixture according to claim 2, characterized in that: The tie rod (13) has a U-shaped structure.

4. The vehicle body welding fixture according to any one of claims 1-3, characterized in that: Two brackets (5) are provided, and the positioning pins (6) are set horizontally.

5. The vehicle body welding fixture according to claim 4, characterized in that: The bracket (5) is provided with a clamp (7) at the top, and the clamp (7) includes a pressure block (8).

6. The vehicle body welding fixture according to claim 4, characterized in that: The base plate (1) is provided with a buffer seat (20), and the base plate (2) is provided with a buffer rod (21).

7. The vehicle body welding fixture according to claim 2, characterized in that: The base plate (1) is provided with a stop block (19), the stop blocks (19) are arranged in pairs, the base (16) is provided with a buffer block (18) on the side, and the stop block (19) and the buffer block (18) are respectively located on both sides of the base plate (2).

8. The vehicle body welding fixture according to claim 4, characterized in that: Both the base plate (1) and the base plate (2) are provided with positioning holes (22).

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