Automobile welding fixture

Abstract

According to the automobile welding clamp, a positioning frame is fixedly arranged at the rear end of a frame, a fixing frame is fixedly arranged at the rear end of the positioning frame, a limiting frame is arranged behind the fixing frame, a guide groove is formed in the frame, a moving block is arranged in the guide groove in a sliding mode, and a rotating shaft is rotationally arranged on the frame; the rotating shaft is provided with a first screw penetrating through the moving block, the first screw is in threaded connection with the moving block, the automobile frame beam can be clamped and fixed through the first clamping block and the second clamping block, sunken parts of the cross beam and the vertical beam can be stably supported, and the cross beam and the vertical beam are not prone to damage in the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to an automobile welding fixture. Background Art

[0002] Automobile welding fixtures are tools used to fix and position workpieces so that automobile parts can be accurately combined and welded;

[0003] During the welding process of the automobile chassis, the existing automobile clamps usually need to fix the horizontal beams and vertical beams on the chassis. Since the horizontal beams and vertical beams are mostly concave structures, the clamping mechanism can only limit the outer sides of the horizontal beams and vertical beams and cannot support the concave parts of the horizontal beams and vertical beams. When the clamping force is too large, the horizontal beams and vertical beams are easily damaged. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides an automobile welding fixture.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automobile welding fixture, comprising a frame, a positioning frame is fixedly provided at the rear end of the frame, a fixing frame is fixedly provided at the rear end of the positioning frame, a limiting frame is provided at the rear of the fixing frame, a guide groove is provided inside the frame, a moving block is slidably provided inside the guide groove, and a rotating shaft is rotatably provided on the frame, a first screw is provided on the rotating shaft that passes through the moving block, the first screw is threadedly connected to the moving block, two first clamping blocks are symmetrically provided on the upper and lower sides of the frame, a plurality of positioning grooves are provided on the frame, a plurality of positioning columns are provided at the lower end of the first clamping block that are inserted into the positioning grooves, a plurality of support rods connected to the first clamping block are symmetrically provided on both sides of the moving block, and the two ends of the support rods are respectively hinged to the moving block and the first clamping block;

[0008] The fixing frame is fixedly provided with a positioning plate, and a second screw which penetrates the limiting frame is rotatably provided on the positioning plate, and the second screw is threadably connected to the limiting frame, and both ends of the limiting frame are slidably connected to the two ends of the positioning frame, and driving blocks are fixedly provided at both ends of the limiting frame, and two vertical rods are symmetrically provided at both ends of the positioning frame, and a second clamping block is fixedly provided at the bottom end of the vertical rod, and the upper end of the second clamping block is provided with a spring penetrated by the vertical rod, and the two ends of the spring are respectively connected to the second clamping block and the positioning frame, and the driving block is provided with an inclined surface contacting the top end of the vertical rod.

[0009] In order to facilitate the operation of the rotating shaft and the second screw, the present invention has been improved in that one end of the rotating shaft is located outside the frame, and one end of the rotating shaft and the second screw are both provided with a toggle block.

[0010] Furthermore, the present invention has been improved in that the top end of the vertical rod is arc-shaped.

[0011] In order to improve the stability of the limiting frame during movement, the present invention has been improved in that sliding grooves are provided at both ends of the positioning frame, and sliding blocks cooperating with the sliding grooves are provided at both ends of the limiting frame.

[0012] Furthermore, the present invention is improved in that the cross sections of the slider and the slide groove are both T-shaped.

[0013] Furthermore, the present invention has been improved in that the guide groove and the moving block are both rectangular.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides an automobile welding fixture with the following beneficial effects:

[0016] The automobile welding fixture rotates the rotating shaft and, through the action of the hinge, can change the inclination angle of the support rod, thereby enabling the two first clamping blocks to move synchronously on both sides of the frame. The two first clamping blocks can clamp and fix the inner wall of the automobile frame beam in the groove of the automobile frame beam. By rotating the second screw, the inclined surface on the driving block will contact the top of the vertical rod, which will apply a pressure to the vertical rod. At this time, the second clamping block will contact the outer wall of the automobile frame beam and can limit the outer wall of the automobile frame beam. At this time, the automobile frame beam can be clamped and fixed by the first clamping block and the second clamping block, and the recessed parts of the cross beam and the vertical beam can be stably supported, so that the cross beam and the vertical beam are not easily damaged during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 The main view;

[0019] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0020] Figure 4 This is a schematic diagram of the internal structure of the guide groove in the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the positioning column in the utility model;

[0022] In the figure: 1. frame; 2. positioning frame; 3. first clamping block; 4. guide groove; 5. moving block; 6. support rod; 7. rotating shaft; 8. first screw; 9. vertical rod; 10. second clamping block; 11. spring; 12. limit frame; 13. slider; 14. driving block; 15. second screw; 16. positioning plate; 17. fixing frame; 18. positioning column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The utility model is an automobile welding fixture, comprising a frame 1, a positioning frame 2 is fixedly arranged at the rear end of the frame 1, a fixing frame 17 is fixedly arranged at the rear end of the positioning frame 2, a limiting frame 12 is provided at the rear of the fixing frame 17, a guide groove 4 is provided inside the frame 1, a moving block 5 is slidingly arranged inside the guide groove 4, and a rotating shaft 7 is rotatably provided on the frame 1, a first screw 8 is provided on the rotating shaft 7 to penetrate the moving block 5, and the first screw 8 is threadedly connected to the moving block 5, two first clamping blocks 3 are symmetrically arranged on the upper and lower sides of the frame 1, a plurality of positioning grooves are provided on the frame 1, a plurality of positioning columns 18 are provided at the lower end of the first clamping block 3 to be inserted into the positioning grooves, a plurality of support rods 6 connected to the first clamping block 3 are symmetrically arranged on both sides of the moving block 5, and the two ends of the support rod 6 are respectively hinged to the moving block 5 and the first clamping block 3;

[0025] A positioning plate 16 is fixedly provided on the fixing frame 17, and a second screw 15 penetrating the limiting frame 12 is rotatably provided on the positioning plate 16, and the second screw 15 is threadedly connected to the limiting frame 12, and both ends of the limiting frame 12 are slidably connected to both ends of the positioning frame 2, and driving blocks 14 are fixedly provided at both ends of the limiting frame 12, and two vertical rods 9 are symmetrically provided at both ends of the positioning frame 2, and a second clamping block 10 is fixedly provided at the bottom end of the vertical rod 9, and the upper end of the second clamping block 10 is provided with a spring 11 penetrated by the vertical rod 9, and the two ends of the spring 11 are respectively connected to the second clamping block 10 and the positioning frame 2, and the driving block 14 is provided with an inclined surface contacting the top end of the vertical rod 9;

[0026] In this embodiment, the frame 1 is provided with a support rod, and the bottom end of the support rod is fixed to a designated welding table by bolts. A plurality of devices need to be installed on the welding table to facilitate the positioning of automobile frame beams of different lengths.

[0027] First, the frame 1 is placed in the groove on the beam of the automobile frame 1, and then the rotating shaft 7 is rotated to rotate the first screw 8. At this time, the movable block 5 can move in the guide groove 4 through the action of the thread structure. When the movable block 5 is moving, the inclination angle of the support rod 6 can be changed through the action of the hinge, so that the two first clamping blocks 3 can be moved synchronously on both sides of the frame 1. At this time, multiple positioning columns 18 will extend in the positioning groove. The positioning columns 18 can improve the stability of the first clamping block 3 during use. The two first clamping blocks 3 can clamp and fix the inner wall of the automobile frame 1 beam in the groove of the automobile frame 1 beam;

[0028] Furthermore, by rotating the second screw 15, the threaded structure can move the limit frame 12 along the second screw 15, so that the two driving blocks 14 can slide at both ends of the positioning frame 2. During this process, the inclined surface on the driving block 14 will contact the top of the vertical rod 9, which will provide a pressure to the vertical rod 9, so that the spring 11 can be in a stretched state. At this time, the second clamping block 10 will contact the outer wall of the beam of the automobile frame 1 and can limit the outer wall of the beam of the automobile frame 1. At this time, the first clamping block 3 and the second clamping block 10 can clamp and fix the beam of the automobile frame 1, and can stably support the recessed parts of the horizontal beam and the vertical beam, so that the horizontal beam and the vertical beam are not easily damaged during the clamping process.

[0029] In this embodiment, one end of the rotating shaft 7 is located outside the frame 1, and one end of the rotating shaft 7 and the second screw rod 15 are provided with a toggle block, which can facilitate the operation of the rotating shaft 7 and the second screw rod 15.

[0030] In this embodiment, the top end of the vertical rod 9 is arc-shaped.

[0031] In this embodiment, both ends of the positioning frame 2 are provided with a slide groove, and both ends of the limiting frame 12 are provided with a slider 13 that cooperates with the slide groove. When the limiting frame 12 is moving, the slider 13 will slide in the slide groove, which can provide a guiding effect for the two ends of the limiting frame 12 and the two ends of the positioning frame 2, and can improve the stability of the limiting frame 12 during movement.

[0032] In this embodiment, the cross-sections of the slider 13 and the sliding groove are both T-shaped, and the guide groove 4 and the moving block 5 are both rectangular.

[0033] In the description herein, it should be noted that relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automobile welding fixture, comprising a frame (1), characterized in that: A positioning frame (2) is fixedly provided at the rear end of the frame (1), a fixed frame (17) is fixedly provided at the rear end of the positioning frame (2), a limiting frame (12) is provided at the rear of the fixed frame (17), a guide groove (4) is provided inside the frame (1), a moving block (5) is slidably provided inside the guide groove (4), and a rotating shaft (7) is rotatably provided on the frame (1), a first screw (8) passing through the moving block (5) is provided on the rotating shaft (7), and the first screw (8) is threadedly connected to the moving block (5), two first clamping blocks (3) are symmetrically provided on the upper and lower sides of the frame (1), a plurality of positioning grooves are provided on the frame (1), a plurality of positioning columns (18) inserted into the positioning grooves are provided at the lower end of the first clamping block (3), and a plurality of support rods (6) connected to the first clamping block (3) are symmetrically provided on both sides of the moving block (5), and the two ends of the support rod (6) are hinged to the moving block (5) and the first clamping block (3) respectively; A positioning plate (16) is fixedly provided on the fixing frame (17), and a second screw (15) penetrating the limiting frame (12) is rotatably provided on the positioning plate (16), and the second screw (15) is threadedly connected to the limiting frame (12), and both ends of the limiting frame (12) are slidably connected to both ends of the positioning frame (2), and driving blocks (14) are fixedly provided at both ends of the limiting frame (12), and two vertical rods (9) are symmetrically provided at both ends of the positioning frame (2), and a second clamping block (10) is fixedly provided at the bottom end of the vertical rod (9), and the upper end of the second clamping block (10) is provided with a spring (11) penetrated by the vertical rod (9), and the two ends of the spring (11) are respectively connected to the second clamping block (10) and the positioning frame (2), and the driving block (14) is provided with an inclined surface contacting the top end of the vertical rod (9).

2. The automobile welding fixture according to claim 1, characterized in that: One end of the rotating shaft (7) is located outside the frame (1), and one end of the rotating shaft (7) and the second screw rod (15) are both provided with a toggle block.

3. The automobile welding fixture according to claim 2, characterized in that: The top end of the vertical rod (9) is arc-shaped.

4. The automobile welding fixture according to claim 3, characterized in that: Both ends of the positioning frame (2) are provided with sliding grooves, and both ends of the limiting frame (12) are provided with sliding blocks (13) that cooperate with the sliding grooves.

5. The automobile welding fixture according to claim 4, characterized in that: The cross sections of the slider (13) and the slide groove are both T-shaped.

6. The automobile welding fixture according to claim 5, characterized in that: The guide groove (4) and the moving block (5) are both rectangular.

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