Automobile welding clamp

Abstract

The utility model relates to the technical field of welding fixtures, and discloses an automobile welding fixture which comprises a base and four groups of positioning columns arranged on the surface of the base, and further comprises a placing plate arranged on the top surfaces of the positioning columns, and two groups of dismounting mechanisms are fixedly connected to the top of the placing plate. According to the automobile welding clamp, through the arrangement of the driving mechanism and the clamping mechanism, when the automobile welding clamp is used, a workpiece is placed between a left clamping plate and a right clamping plate, then a hydraulic cylinder on the surface of a base is started, and the hydraulic cylinder stretches out and draws back to drive a connecting plate on a tail end connecting block to move; in the moving process, the connecting plates drive the connecting plates on the other side to move relatively through linkage cooperation of a rotating connector, a supporting rod and a rotating plate which are arranged on one side, and the two sets of connecting plates move relatively, so that a left clamping plate and a right clamping plate on the top clamp and fix a workpiece in the middle, and therefore workpieces of different sizes are clamped and fixed, and the working efficiency is improved. And the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, and particularly relates to an automobile welding jig. Background Art

[0002] An automobile welding jig is a device capable of clamping and welding corresponding parts of an automobile. It is widely used in the automobile manufacturing industry. With the widespread use of automobiles and the precise requirements for the welding process of automobile exhaust pipes, the manufacturing process requirements for automobile exhaust pipes are getting higher and higher.

[0003] The utility model patent with the publication number of CN209035810U discloses an automobile welding jig, which includes a device main body for effectively clamping the welding jig and a liquid cooling pipe for effectively cooling the welded exhaust pipe. At the same time, it includes a first chuck for effectively clamping the exhaust pipe with a curved arc, and finally also includes a combined structure of a fixing plate and a limiting plate for horizontally and vertically clamping automobile parts. The liquid cooling pipe is fixedly installed on the outer end surface of one side of the device main body. The automobile welding jig of the utility model can clamp different exhaust pipes through three adjacent first chucks, and two or three parts can be welded together by several welding points to keep the relative position relationship unchanged. This butt welding process does not conflict with the overall welding. At the same time, the exhaust pipe can be evenly cooled through the liquid cooling pipe, and the problem of large local temperature change difference of the exhaust pipe body will not occur, having a good application prospect.

[0004] However, when the existing automobile welding jig is in use, it is not easy to clamp and fix workpieces of different sizes for the convenience of operation by workers. Secondly, most of the jigs are fixed to the workbench by threads, and the threads need to be unscrewed during maintenance, which is time-consuming and laborious and affects the installation efficiency.

[0005] Therefore, it is very necessary to invent an automobile welding jig to solve the above problems. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] The technical problem solved by the utility model is to provide an automobile welding jig with high practicability, which can be operated simply and has a relatively simple structure, solving the problems of not being easy to clamp and fix workpieces of different sizes and not being convenient for disassembly mentioned in the above background art.

[0008] (2) Technical Solutions

[0009] To achieve the above objectives, the present utility model is realized through the following technical solutions: An automotive welding fixture includes a base and four groups of positioning columns arranged on the surface of the base, and further includes: A placement plate arranged on the top surface of the positioning columns, and two groups of disassembly mechanisms are fixedly connected to the top of the placement plate. The disassembly mechanism includes a double-headed hydraulic rod and a positioning block; Four groups of positioning sliding rails arranged on the top of the placement plate, a connecting plate is slidably connected to the surface of the positioning sliding rail, and a driving mechanism is fixedly connected to the edge of one side of the top surface of the connecting plate. The driving mechanism includes a connecting block and a hydraulic cylinder; A rotating joint arranged on the surface of the connecting plate, and a clamping mechanism is fixedly connected to the surface of the connecting plate. The clamping mechanism includes a U-shaped frame, a fixing plate, a left clamping plate and a right clamping plate.

[0010] As a preferred technical solution of the present utility model, the double-headed hydraulic rod is fixedly connected to the top of the placement plate, and positioning blocks are fixedly connected to the output ends of the double-headed hydraulic rod.

[0011] As a preferred technical solution of the present utility model, the connecting block is fixedly connected to the edge of one side of the top surface of the connecting plate, and a hydraulic cylinder is fixedly connected to one end of the connecting block.

[0012] As a preferred technical solution of the present utility model, the U-shaped frame is fixedly connected to the surface of the connecting plate, a fixing plate is fixedly connected to one side of the U-shaped frame, a left clamping plate is threadedly connected to the surface of one group of the fixing plates, and a right clamping plate is threadedly connected to the surface of the other group of the fixing plates.

[0013] As a preferred technical solution of the present utility model, a support rod is rotatably connected to the surface of the rotating joint, and a rotating plate is rotatably connected to one end of the support rod.

[0014] As a preferred technical solution of the present utility model, a rotating shaft is rotatably connected to the middle of the bottom surface of the rotating plate, and the bottom of the rotating shaft is fixedly connected to the top surface of the base.

[0015] As a preferred technical solution of the present utility model, a threaded hole is opened on the surface of the hydraulic cylinder, and a threaded column is threadedly connected to the inside of the threaded hole.

[0016] As a preferred technical solution of the present utility model, two groups of threaded holes are opened on the surfaces of the left clamping plate and the right clamping plate, and bolts are threadedly connected to the inside of the threaded holes.

[0017] (III) Beneficial effects

[0018] The present utility model provides an automotive welding fixture, which has the following beneficial effects:

[0019] 1. This automotive welding fixture, through the settings of the driving mechanism and the clamping mechanism, when in use, places the workpiece in the middle of the left clamping plate and the right clamping plate, and then starts the hydraulic cylinder on the surface of the base. The telescopic movement of the hydraulic cylinder drives the connecting plate on the end connecting block to move. During the movement of the connecting plate, through the linkage cooperation of the rotary joint, support rod, and rotating plate set on one side, it drives the connecting plate on the other side to move relatively. The relative movement of the two groups of connecting plates causes the left clamping plate and the right clamping plate on the top to clamp and fix the workpiece in the middle, thereby achieving the clamping and fixing of workpieces of different sizes and improving the practicality of the equipment.

[0020] 2. This automotive welding fixture, through the setting of the disassembly mechanism, when installing the equipment, inserts the four positioning columns set on the surface of the placement plate into the positioning grooves opened on the surface of the base, and then places the double-headed hydraulic rod at the bottom of the placement plate on the surface of the base. Start the double-headed hydraulic rod, and the double-headed hydraulic rod drives the positioning blocks on both sides to move until they are close to the surfaces on both sides of the base, so as to achieve the effect of installing the left clamping plate and the right clamping plate on the placement plate, without the need to fix them by screwing threads, improving the installation efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the driving mechanism structure of the present utility model;

[0023] Figure 3 is a schematic diagram of the disassembly mechanism structure of the present utility model;

[0024] Figure 4 is a schematic diagram of the clamping mechanism structure of the present utility model.

[0025] In the figure: 1. Base; 2. Positioning column; 3. Placement plate; 4. Disassembly mechanism; 401. Double-headed hydraulic rod; 402. Positioning block; 5. Positioning slide rail; 6. Connecting plate; 7. Driving mechanism; 701. Connecting block; 702. Hydraulic cylinder; 8. Rotary joint; 9. Clamping mechanism; 901. U-shaped frame; 902. Fixed plate; 903. Left clamping plate; 904. Right clamping plate; 10. Support rod; 11. Rotating plate; 12. Rotating shaft; 13. Threaded column; 14. Bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer toFigures 1-4 , the present utility model discloses an automobile welding fixture, which includes a base 1 and four groups of positioning columns 2 arranged on the surface of the base 1, and further includes: a placing plate 3 arranged on the top surface of the positioning column 2, and two groups of disassembly mechanisms 4 are fixedly connected to the top of the placing plate 3. Through the arrangement of the disassembly mechanism 4, there is no need to fix by screwing threads, which improves the installation efficiency of the staff. The disassembly mechanism 4 includes a double-headed hydraulic rod 401 and a positioning block 402; four groups of positioning sliding rails 5 are arranged on the top of the placing plate 3, and a connecting plate 6 is slidably connected to the surface of the positioning sliding rail 5. One side edge of the top surface of the connecting plate 6 is fixedly connected with a driving mechanism 7. Through the arrangement of the driving mechanism 7 and the clamping mechanism 9, clamping and fixing of workpieces with different sizes are achieved, and the practicability of the equipment is improved; the driving mechanism 7 includes a connecting block 701 and a hydraulic cylinder 702; a rotating joint 8 is arranged on the surface of the connecting plate 6, and a clamping mechanism 9 is fixedly connected to the surface of the connecting plate 6. The clamping mechanism 9 includes a U-shaped frame 901, a fixing plate 902, a left clamping plate 903 and a right clamping plate 904;

[0028] Please refer to Figure 3 , the double-headed hydraulic rod 401 is fixedly connected to the top of the placing plate 3, and positioning blocks 402 are fixedly connected to the output ends of the double-headed hydraulic rod 401;

[0029] Please refer to Figure 2 , the connecting block 701 is fixedly connected to one side edge of the top surface of the connecting plate 6, and one end of the connecting block 701 is fixedly connected with a hydraulic cylinder 702;

[0030] Please refer to Figure 4 , the U-shaped frame 901 is fixedly connected to the surface of the connecting plate 6, one side of the U-shaped frame 901 is fixedly connected with a fixing plate 902, a left clamping plate 903 is threadedly connected to the surface of one group of fixing plates 902, and a right clamping plate 904 is threadedly connected to the surface of the other group of fixing plates 902;

[0031] Please refer to Figure 2 , a support rod 10 is rotatably connected to the surface of the rotating joint 8, and one end of the support rod 10 is rotatably connected to a rotating plate 11;

[0032] Please refer to Figure 2 , the middle part of the bottom surface of the rotating plate 11 is rotatably connected to a rotating shaft 12, and the bottom of the rotating shaft 12 is fixedly connected to the top surface of the base 1;

[0033] Please refer to Figure 2 , a threaded hole is formed in the surface of the hydraulic cylinder 702, and a threaded column 13 is threadedly connected to the inside of the threaded hole;

[0034] Please refer to Figure 4 , two groups of threaded holes are formed in the surfaces of the left clamping plate 903 and the right clamping plate 904, and bolts 14 are threadedly connected to the inside of the threaded holes.

[0035] In the present utility model, the working steps of the device are as follows:

[0036] First step: When in use, place the workpiece in the middle of the left clamping plate 903 and the right clamping plate 904, and then start the hydraulic cylinder 702 on the surface of the base 1. The telescopic movement of the hydraulic cylinder 702 drives the connecting plate 6 on the end connecting block 701 to move. During the movement of the connecting plate 6, through the linkage cooperation of the rotary joint 8, the support rod 10 and the rotating plate 11 arranged on one side, it drives the connecting plate 6 on the other side to move relatively. The relative movement of the two groups of connecting plates 6 causes the left clamping plate 903 and the right clamping plate 904 at the top to clamp and fix the workpiece in the middle.

[0037] Second step: When installing the equipment, insert the four positioning posts 2 arranged on the surface of the placing plate 3 into the positioning grooves opened on the surface of the base 1, and then place the double-headed hydraulic rod 401 at the bottom of the placing plate 3 on the surface of the base 1. Start the double-headed hydraulic rod 401, and the double-headed hydraulic rod 401 drives the positioning blocks 402 on both sides to move until they are close to the surfaces on both sides of the base 1, so as to install the left clamping plate 903 and the right clamping plate 904 on the placing plate 3.

[0038] It should be noted that the equipment structure and the attached drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific power mechanism, power supply system, and control system can be clearly known. The control mode of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0039] The standard parts used therein can all be purchased from the market, and can also be customized according to the description in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive welding fixture, comprising a base (1) and four groups of positioning posts (2) arranged on the surface of the base (1), characterized in that, It further includes: A placement plate (3) arranged on the top surface of the positioning column (2). Two sets of disassembly mechanisms (4) are fixedly connected to the top of the placement plate (3). The disassembly mechanism (4) includes a double-headed hydraulic rod (401) and a positioning block (402). Four sets of positioning sliding rails (5) are arranged on the top of the placement plate (3). A connecting plate (6) is slidably connected to the surface of the positioning sliding rail (5). One side edge of the top surface of the connecting plate (6) is fixedly connected with a driving mechanism (7). The driving mechanism (7) includes a connecting block (701) and a hydraulic cylinder (702). A rotating joint (8) is arranged on the surface of the connecting plate (6). A clamping mechanism (9) is fixedly connected to the surface of the connecting plate (6). The clamping mechanism (9) includes a U-shaped frame (901), a fixing plate (902), a left clamping plate (903) and a right clamping plate (904).

2. The automotive welding jig according to claim 1, characterized in that: The double-headed hydraulic rod (401) is fixedly connected to the top of the placement plate (3), and the output ends of the double-headed hydraulic rod (401) are both fixedly connected with positioning blocks (402).

3. The automotive welding fixture according to claim 1, wherein: The connecting block (701) is fixedly connected to one side edge of the top surface of the connecting plate (6), and one end of the connecting block (701) is fixedly connected with a hydraulic cylinder (702).

4. A vehicle welding jig according to claim 1, characterized in that: The U-shaped frame (901) is fixedly connected to the surface of the connecting plate (6). One side of the U-shaped frame (901) is fixedly connected with a fixing plate (902). A left clamping plate (903) is threadedly connected to the surface of one set of the fixing plates (902), and a right clamping plate (904) is threadedly connected to the surface of the other set of the fixing plates (902).

5. The automotive welding jig according to claim 1, wherein: A support rod (10) is rotatably connected to the surface of the rotating joint (8), and one end of the support rod (10) is rotatably connected to a rotating plate (11).

6. The automotive welding jig according to claim 5, wherein: The middle part of the bottom surface of the rotating plate (11) is rotatably connected with a rotating shaft (12), and the bottom of the rotating shaft (12) is fixedly connected to the top surface of the base (1).

7. The automotive welding fixture according to claim 1, characterized in that: Threaded holes are formed in the surface of the hydraulic cylinder (702), and a threaded column (13) is threadedly connected to the inside of the threaded holes.

8. The automotive welding jig according to claim 1, wherein: Two sets of threaded holes are formed in the surfaces of the left clamping plate (903) and the right clamping plate (904), and bolts (14) are threadedly connected to the inside of the threaded holes.

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