Automobile body welding clamp

Abstract

The utility model relates to the technical field of automobile production, and discloses an automobile body welding clamp which comprises a bottom plate and a positioning frame and further comprises a positioning plate fixed to the opposite side of the positioning frame, and a turnover mechanism is arranged on one side of the top of the bottom plate and comprises a rotating motor, a first transmission rod and a first transmission wheel. And by installing the turnover mechanism, turnover welding operation of the surface of the vehicle body can be efficiently achieved, and the tedious process that workers need to conduct welding around the vehicle body is greatly avoided through the design. A traditional welding mode not only limits the flexibility of welding operation, but also possibly hinders the smoothness and the overall efficiency of welding work, in addition, the design of the clamping mechanism is adopted, the four corners of the vehicle body can be firmly clamped and fixed, the measure effectively prevents the vehicle body from possibly falling off in the clamping and welding process, and the welding quality of the vehicle body is improved. Therefore, the safety risk in the operation process is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile production, specifically is a kind of automobile body welding fixture. BACKGROUND

[0002] With the progress of science and technology, the improvement of living standards, automobile gradually enters each family, and the requirement of major automobile manufacturers to produce car is also higher and higher. Automobile has many components, and the body is a particularly important part of the car. In the process of machining the automobile body, the automobile body is often clamped and fixed, so that the automobile body can be welded conveniently.

[0003] However, in the conventional process of automobile body welding, a pair of oppositely arranged clamping devices are widely used to fix the automobile body and perform welding operation. Unfortunately, this fixing method greatly limits the rotational freedom of the automobile body during welding, thereby posing a considerable challenge to subsequent welding work. Workers often need to move around the automobile body to complete the welding. This operation mode not only limits the flexible rotation of the automobile body, but also affects the smoothness and efficiency of the welding work. UTILITARIAN CONTENT

[0004] The utility model aims at providing an automobile body welding fixture to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile body welding fixture, comprising a base plate and a positioning frame, further comprising:

[0006] A positioning plate is fixed to one side of the positioning frame, one side of the top of the base plate is provided with a turnover mechanism, and the turnover mechanism comprises a rotating motor, a first transmission rod and a first transmission wheel.

[0007] Four L plates are fixed to the top corners of the positioning plate, one side of each of the four L plates is provided with a clamping mechanism, the clamping mechanism comprises a driving motor, a lead screw and a lead sleeve, and two sides of the L plate are provided with a sliding groove.

[0008] Four through holes are provided at the four corners of the surface of the positioning plate, and a latch is provided at both sides of each of the four through holes. The top of the positioning plate is fixedly connected with an elevator, the top of the elevator is fixedly connected with an extension rod, and the top of the extension rod is fixedly connected with a supporting pad for supporting the inner cavity of the automobile body.

[0009] Preferably, the bottom of the rotating motor is fixedly connected with the bottom plate, one side of the first transmission rod is fixedly connected with the rotating motor, the inner cavity of the first transmission wheel is fixedly connected with the first transmission rod, the surface of the first transmission wheel is meshedly connected with a gear belt, the inner cavity of the gear belt is meshedly connected with the second transmission wheel at the top, the inner cavity of the second transmission wheel is fixedly connected with the second transmission rod, and one side of the second transmission rod penetrates through the inner cavity of one of the positioning frames and is fixedly connected with the positioning plate through a bearing.

[0010] Preferably, the right side of the positioning plate is fixedly connected with a rotating rod through a bearing, and one side of the rotating rod is fixedly connected with one of the positioning frames through a bearing.

[0011] Preferably, one side of the positioning frame is fixedly connected with a first half gear through a bearing, the top of the first half gear is meshedly connected with a second half gear, and the inner cavity of the second half gear is fixedly connected with the rotating rod.

[0012] Preferably, one side of the driving motor is fixedly connected with an L-shaped plate, one side of the lead screw is fixedly connected with the inner cavity of the L-shaped plate through a bearing, the inner cavity of the lead screw nut is threadedly connected with the lead screw, the top of the lead screw nut is fixedly connected with a fixed plate, and the top of the fixed plate is fixedly connected with a clamping plate for clamping the vehicle body.

[0013] Preferably, both sides of the bottom of the clamping plate are fixedly connected with sliding blocks, and the surfaces of the sliding blocks are slidingly inserted into the inner cavities of the sliding grooves.

[0014] Preferably, both sides of the L-shaped plate are fixedly connected with limiting plates, the inner cavities of the limiting plates are slidingly inserted with limiting rods, and the bottoms of the limiting rods are inserted into the inner cavities of the bolts.

[0015] Preferably, both sides of the bottom of the limiting plate are fixedly connected with sliding sleeves, the bottoms of the sliding sleeves penetrate into the inner cavities of the through holes and are sleeved with first sliding rods, and both sides of the first sliding rods are fixedly connected with the inner cavities of the positioning plates.

[0016] Preferably, both sides of the bottom of the supporting pad are fixedly connected with auxiliary plates, the inner cavities of the auxiliary plates are slidingly sleeved with second sliding rods, and the bottoms of the second sliding rods are fixedly connected with the positioning plates.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a turn over mechanism is installed, can efficiently realize the turn over welding operation of the surface of the vehicle body, this design greatly avoided the cumbersome process that the staff needs to carry out welding around the vehicle body. The traditional welding mode not only limits the flexibility of welding operation, but also can hinder the fluency and overall efficiency of welding work, in addition, the design of clamping mechanism can firmly clamp and fix the four corners of the vehicle body, this measure effectively prevents the falling of the vehicle body that can appear in the clamping welding process, thereby greatly reduce the security risk in the operation process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The utility model provides the structure schematic diagram of automobile vehicle body welding fixture is provided for the utility model,

[0020] Figure 2 The utility model provides the structure schematic diagram of automobile vehicle body welding fixture is provided for the utility model,

[0021] Figure 3 The utility model provides the structure schematic diagram of automobile vehicle body welding fixture is provided for the utility model,

[0022] Figure 4 The utility model provides the structure schematic diagram of automobile vehicle body welding fixture is provided for the utility model,

[0023] Figure 5 The utility model provides the structure schematic diagram of automobile vehicle body welding fixture is provided for the utility model,

[0024] In the drawing: 1, bottom plate, 2, positioning frame, 3, positioning plate, 4, turn over mechanism, 401, rotation motor, 402, first transmission rod, 403, first transmission wheel, 404, gear belt, 405, second transmission wheel, 406, second transmission rod, 5, L board, 6, clamping mechanism, 601, drive motor, 602, screw rod, 603, silk cover, 604, fixed plate, 605, clamping plate, 606, sliding block, 7, sliding slot, 8, through -hole, 9, bolt, 10, elevator, 11, telescopic link, 12, support pad, 13, rotation rod, 14, first half gear, 15, second half gear, 16, limit plate, 17, limit rod, 18, sliding sleeve, 19, first sliding rod, 20, auxiliary plate, 21, second sliding rod. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0026] Please refer to Figures 1-5As shown, a car body welding fixture, including a base plate 1 and positioning frame 2, also includes:

[0027] Positioning plate 3 fixed to the opposite side of the positioning frame 2, the top of the base plate 1 is provided with a turnover mechanism 4, the turnover mechanism 4 includes a rotating motor 401, a first transmission rod 402, a first transmission wheel 403.

[0028] The bottom of the rotating motor 401 is fixedly connected with the base plate 1, one side of the first transmission rod 402 is fixedly connected with the rotating motor 401, the inner cavity of the first transmission wheel 403 is fixedly connected with the first transmission rod 402, the surface of the first transmission wheel 403 is meshingly connected with a gear belt 404, the top of the inner cavity of the gear belt 404 is meshingly connected with a second transmission wheel 405, the inner cavity of the second transmission wheel 405 is fixedly connected with a second transmission rod 406, one side of the second transmission rod 406 penetrates into the inner cavity of one of the positioning frames 2 and is fixedly connected with the positioning plate 3 through a bearing, the right side of the positioning plate 3 is fixedly connected with a rotating rod 13 through a bearing, one side of the rotating rod 13 is fixedly connected with one of the positioning frames 2 through a bearing, one side of the positioning frame 2 is fixedly connected with a first half gear 14 through a bearing, the top of the first half gear 14 is meshingly connected with a second half gear 15, the inner cavity of the second half gear 15 is fixedly connected with the rotating rod 13; when left and right turning is needed during welding, first start the rotating motor 401, drive the first transmission rod 402 to rotate through the output end of the rotating motor 401, drive the first transmission wheel 403 to rotate while the first transmission rod 402 rotates, drive the gear belt 404 to rotate while the first transmission wheel 403 rotates, drive the second transmission wheel 405 to rotate while the gear belt 404 rotates, drive the second transmission rod 406 to rotate while the second transmission wheel 405 rotates, drive the positioning plate 3 to turn left and right while the second transmission rod 406 rotates, drive the rotating rod 13 to rotate on the surface of one of the positioning frames 2 while the positioning plate 3 rotates, drive the first half gear 14 to rotate while the rotating rod 13 rotates, meshingly drive the second half gear 15 to rotate and limit while the first half gear 14 rotates, thereby effectively turning the car body left and right and facilitating the welding effect.

[0029] L plate 5 fixed to the top four corners of the positioning plate 3, one side of the four L plates 5 is provided with a clamping mechanism 6, the clamping mechanism 6 includes a driving motor 601, a lead screw 602, a lead sleeve 603, and the two sides of the L plate 5 are provided with a sliding groove 7.

[0030] One side of the driving motor 601 is fixedly connected with the L-shaped plate 5, one side of the lead screw 602 is fixedly connected with the inner cavity of the L-shaped plate 5 through a bearing, the inner cavity of the lead sleeve 603 is threadedly connected with the lead screw 602, the top of the fixed plate 604 is fixedly connected with the clamping plate 605 for clamping the vehicle body, the bottom of the clamping plate 605 is fixedly connected with the sliding block 606 on both sides, the surface of the sliding block 606 is slidably inserted into the inner cavity of the sliding groove 7, the both sides of the L-shaped plate 5 are fixedly connected with the limiting plate 16, the inner cavity of the limiting plate 16 is slidably inserted with the limiting rod 17, the bottom of the limiting rod 17 is inserted into the inner cavity of the bolt 9, the both sides of the bottom of the limiting plate 16 are fixedly connected with the sliding sleeve 18, the bottom of the sliding sleeve 18 penetrates into the inner cavity of the through hole 8 and is sleeved with the first sliding rod 19, the both sides of the first sliding rod 19 are fixedly connected with the inner cavity of the positioning plate 3;

[0031] When it is necessary to clamp the four corners of the vehicle body, first, the L-shaped plate 5 is pushed to drive the limiting plate 16 to move in the inner cavity of the through hole 8, the sliding sleeve 18 is driven to move on the surface of the first sliding rod 19 while the limiting plate 16 moves, the limiting rod 17 is slidably inserted into the inner cavity of the bolt 9 when it moves to the appropriate position, and the L-shaped plate 5 is positioned, so that the vehicle body of different sizes can be effectively clamped and fixed. At the same time, the driving motor 601 is started, the output shaft of the driving motor 601 drives the lead screw 602 to rotate, the lead sleeve 603 is driven to move while the lead screw 602 rotates, the fixed plate 604 is driven to move while the lead sleeve 603 moves, the clamping plate 605 is driven to move while the fixed plate 604 moves, and the vehicle body is clamped and fixed, the sliding block 606 is driven to move in the inner cavity of the sliding groove 7 while the clamping plate 605 moves, so that the four corners of the vehicle body can be effectively clamped and fixed.

[0032] The through hole 8 is opened in the surface of the positioning plate 3, the both sides of the four through holes 8 are provided with the bolt 9, the top of the positioning plate 3 is fixedly connected with the elevator 10, the top of the elevator 10 is fixedly connected with the telescopic rod 11, the top of the telescopic rod 11 is fixedly connected with the supporting pad 12 for supporting the inner cavity of the vehicle body, the both sides of the bottom of the supporting pad 12 are fixedly connected with the auxiliary plate 20, the inner cavity of the auxiliary plate 20 is slidably sleeved with the second sliding rod 21, the bottom of the second sliding rod 21 is fixedly connected with the positioning plate 3;

[0033] When the body needs to be supported during clamping, the elevator 10 is started at this time, the telescopic rod 11 is lifted by the telescopic belt of the elevator 10, the supporting pad 12 is lifted at the same time as the telescopic rod 11 is lifted, the supporting pad 12 is in contact with the top of the inner cavity of the body and is supported at the same time as the supporting pad 12 is lifted, the auxiliary plate 20 is lifted on the surface of the second sliding rod 21 at the same time as the supporting pad 12 is lifted, thereby effectively supporting the body.

[0034] Working principle: first, the body is placed on the surface of the positioning plate 3, the elevator 10 is started at this time, the telescopic rod 11 is lifted by the telescopic belt of the elevator 10, the supporting pad 12 is lifted at the same time as the telescopic rod 11 is lifted, the supporting pad 12 is in contact with the top of the inner cavity of the body and is supported at the same time as the supporting pad 12 is lifted, the auxiliary plate 20 is lifted on the surface of the second sliding rod 21 at the same time as the supporting pad 12 is lifted, thereby effectively supporting the body. When the body needs to be supported during clamping, the elevator 10 is started at this time, the telescopic rod 11 is lifted by the telescopic belt of the elevator 10, the supporting pad 12 is lifted at the same time as the telescopic rod 11 is lifted, the supporting pad 12 is in contact with the top of the inner cavity of the body and is supported at the same time as the supporting pad 12 is lifted, the auxiliary plate 20 is lifted on the surface of the second sliding rod 21 at the same time as the supporting pad 12 is lifted, thereby effectively supporting the body.

[0035] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0036] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. An automotive body welding fixture comprising a base plate (1) and a positioning frame (2), characterized in that, Also include: The positioning plate (3) is fixed to the opposite side of the positioning frame (2), one side of the top of the bottom plate (1) is provided with a turnover mechanism (4), the turnover mechanism (4) comprises a rotating motor (401), a first transmission rod (402), a first transmission wheel (403); The L plate (5) is fixed to the top of the positioning plate (3), one side of the four L plates (5) is provided with a clamping mechanism (6), the clamping mechanism (6) comprises a driving motor (601), a lead screw (602), a lead sleeve (603), and the two sides of the L plate (5) are provided with a sliding groove (7); The through hole (8) is opened in the surface of the positioning plate (3), the two sides of the four through holes (8) are provided with a latch (9), the top of the positioning plate (3) is fixedly connected with a lifting machine (10), the top of the lifting machine (10) is fixedly connected with a telescopic rod (11), and the top of the telescopic rod (11) is fixedly connected with a supporting pad (12) for supporting the inner cavity of the vehicle body.

2. A vehicle body welding fixture according to claim 1, wherein: The bottom of the rotating motor (401) is fixedly connected with the bottom plate (1), one side of the first transmission rod (402) is fixedly connected with the rotating motor (401), the inner cavity of the first transmission wheel (403) is fixedly connected with the first transmission rod (402), the surface of the first transmission wheel (403) is meshingly connected with a gear belt (404), the top of the inner cavity of the gear belt (404) is meshingly connected with a second transmission wheel (405), the inner cavity of the second transmission wheel (405) is fixedly connected with a second transmission rod (406), and one side of the second transmission rod (406) penetrates into the inner cavity of one of the positioning frames (2) and is fixedly connected with the positioning plate (3) through a bearing.

3. The automotive body welding fixture of claim 1, wherein: The right side of the positioning plate (3) is fixedly connected with a rotating rod (13) through a bearing, and one side of the rotating rod (13) is fixedly connected with one of the positioning frames (2) through a bearing.

4. A vehicle body welding fixture according to claim 3, wherein: One side of the positioning frame (2) is fixedly connected with a first half gear (14) through a bearing, the top of the first half gear (14) is meshingly connected with a second half gear (15), and the inner cavity of the second half gear (15) is fixedly connected with the rotating rod (13).

5. The automotive body welding fixture of claim 1, wherein: One side of the driving motor (601) is fixedly connected with the L plate (5), one side of the lead screw (602) is fixedly connected with the inner cavity of the L plate (5) through a bearing, the inner cavity of the lead sleeve (603) is threadedly connected with the lead screw (602), the top of the lead sleeve (603) is fixedly connected with a fixed plate (604), and the top of the fixed plate (604) is fixedly connected with a clamping plate (605) for clamping the vehicle body.

6. The automotive body welding fixture according to claim 5, characterized in that: The bottom of the clamping plate (605) is fixedly connected with a sliding block (606) on both sides, and the surface of the sliding block (606) is slidingly inserted into the inner cavity of the sliding groove (7).

7. The automotive body welding fixture of claim 1, wherein: The two sides of the L plate (5) are fixedly connected with a limiting plate (16), the inner cavity of the limiting plate (16) is slidingly inserted with a limiting rod (17), and the bottom of the limiting rod (17) is inserted into the inner cavity of the latch (9).

8. A vehicle body welding fixture according to claim 7, wherein: Both sides of the bottom of the limiting plate (16) are fixedly connected with sliding sleeves (18), the bottom of the sliding sleeve (18) penetrates to the inner cavity of the through hole (8) and is sleeved with a first sliding rod (19), both sides of the first sliding rod (19) are fixedly connected with the inner cavity of the positioning plate (3).

9. The automotive body welding fixture of claim 1, wherein: Both sides of the bottom of the supporting pad (12) are fixedly connected with auxiliary plates (20), the inner cavities of the auxiliary plates (20) are slidably sleeved with second sliding rods (21), and the bottoms of the second sliding rods (21) are fixedly connected with the positioning plate (3).

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