Automatic bending test device for thin plate welding

Abstract

The invention belongs to the technical field of vehicle body tests, and particularly relates to a thin plate plant welding automatic bending test device which comprises a fixed assembly part and a movable assembly part. The fixing assembly part comprises a fixing bottom plate, a welding nail planting clamping plate, a sliding block and an air cylinder mounting plate. The welding nail planting clamping plate, the sliding block and the air cylinder mounting plate are all arranged on the fixing bottom plate. The moving assembly part comprises a sliding rail with an angle at the end, an air cylinder guide rod connecting plate and an air cylinder mechanism, the sliding rail with the angle at the end is arranged on the sliding block in a sliding mode, the air cylinder guide rod connecting plate is connected with the sliding rail with the angle at the end and the air cylinder mechanism, and the air cylinder mechanism is installed on the air cylinder installation plate. The thin plate planting welding automatic bending test device is composed of the fixing assembly, the moving assembly and the protection assembly, the air cylinder mechanism drives the sliding rail with the angle at the end to move, a planting welding nail fixed to the test plate of the planting welding nail clamping plate is bent according to a certain angle, and it is guaranteed that the bending test is conducted smoothly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vehicle body test, and particularly relates to a thin plate spot welding automatic bending test device. BACKGROUND

[0002] The existing light truck body adopts a thin plate, and in order to assemble and use in the next process such as total assembly rain curtain, a spot welding process is used for spot welding of screws on the thin plate. The detection mode of the spot welding screw is a test plate bending test. That is, the screw is spot welded on a steel test plate with a length of 180mm, a width of 30mm, and a thickness consistent with the vehicle body (between 0.8mm and 2.0mm). During the test, the screw is bent to a certain angle (such as about 60°) by artificial hammering. However, during the test, the thin plate is low in strength, and the steel plate is easily deformed during hammering, resulting in test failure. At the same time, artificial knocking is time-consuming and laborious, and there are certain hammering injuries and other safety hazards.

[0003] The existing technology has the following disadvantages:

[0004] The test plate is thin (0.8mm-1.0mm), and the overall strength is low due to the width of 30mm and the length of 180mm, which leads to easy deformation. At the same time, the employee needs to hammer with force F, which is time-consuming and laborious; the thickness and width of the test plate are increased to improve the strength, but it does not meet the requirement of keeping consistent with the vehicle body; the test plate clamping is increased during the test, and the cost is increased; during the test, the protective articles for the hands, eyes, arms, etc. of the employee and the thickness are increased to improve the personal safety, but the cost is increased. SUMMARY

[0005] The purpose of the present application is to provide a thin plate spot welding automatic bending test device to solve the problems of test plate deformation, time-consuming and laborious, hammering injury risk, etc. during spot welding.

[0006] To achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0007] A thin plate spot welding automatic bending test device, comprising a fixed component part and a moving component part;

[0008] The fixed component part comprises a fixed bottom plate, a spot welding nail clamping plate, a sliding block and a cylinder mounting plate, and the spot welding nail clamping plate, the sliding block and the cylinder mounting plate are all arranged on the fixed bottom plate;

[0009] The moving component part comprises an end head angle sliding rail, a cylinder guide rod connecting plate and a cylinder mechanism, the end head angle sliding rail is slidingly arranged on the sliding block, the cylinder guide rod connecting plate is connected with the end head angle sliding rail and the cylinder mechanism respectively, and the cylinder mechanism is installed on the cylinder mounting plate.

[0010] Further, the spot welding nail clamping plate is arranged on the fixed bottom plate separately from the sliding block.

[0011] Further, the welding nail clamping plate comprises a clamping plate base and a clamping plate, the clamping plate is fixedly connected with the clamping plate base, a body panel clamping groove is formed between the clamping plate base and the clamping plate, and a limiting groove is arranged on the clamping plate and communicated with the body panel clamping groove.

[0012] Further, the included angle between the front end face and the bottom face of the end face angle sliding rail is 120 degrees, so that the maximum 60-degree bending test of the screw is realized.

[0013] Further, the cylinder guide rod connecting plate comprises a sliding rail connecting part and a cylinder connecting part, the sliding rail connecting part is perpendicular to the cylinder connecting part, the sliding rail connecting part is a cuboid structure, and the cylinder connecting part is a rectangular plate structure.

[0014] Further, the lower end face of the cylinder mounting plate is fixed on the fixed base plate, the cylinder mounting plate is composed of a lower mounting plate and an upper mounting plate in an integrated structure, the width of the lower mounting plate is smaller than that of the upper mounting plate, a through hole corresponding to the running direction of the end face angle sliding rail is arranged on the lower mounting plate, and a cylinder rod mounting hole is arranged on the upper mounting plate.

[0015] Further, the protective assembly part is further included, the protective assembly part comprises a test panel protective baffle and a cylinder protective baffle, the test panel protective baffle is arranged on the fixed base plate corresponding to the welding nail clamping plate and the sliding block, and the cylinder protective baffle is fixed on the cylinder.

[0016] The beneficial effects of the present application are:

[0017] The thin plate welding automatic bending test device of the present application is composed of a fixed assembly, a moving assembly and a protective assembly, the end face angle sliding rail is moved by the cylinder mechanism, the welding nail on the test panel fixed on the welding nail clamping plate is bent at a certain angle, and the smooth bending test is ensured.

[0018] The test device of the present application adopts a pneumatic device to replace manual hammering operation, time and labor are saved, and the risk of hammering injury is eliminated, the limiting block and the angle impact block are adopted, the test bending angle is ensured to meet the test requirements, the test is ensured to be carried out smoothly, the protective baffle of the acrylic material is added, the risk of cutting and scratching injury in the test process is eliminated, the sliding rail and the sliding block are adopted, the direction is controllable, and the test success rate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a structure schematic view of the thin plate welding automatic bending test device of the present application;

[0020] Figure 2 The figure is a structure schematic view of the fixed assembly part of the present application;

[0021] Figure 3 The figure is a structure schematic view of the moving assembly part of the present application;

[0022] Figure 4 This is a schematic diagram of the protective baffle structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the weld stud plate structure of the present invention;

[0024] Figure 6 A schematic diagram showing the placement of a test plate with weld studs into a weld stud holder;

[0025] Figure 7 A schematic diagram of a slide rail with an angled end;

[0026] Figure 8 The diagram shows the bending test process using this device. Figure A shows the test process with the plate with welded studs attached; Figure B shows the test process with the upper part of the plate with welded studs attached hidden for easier display.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Fixed base plate; 2. Welding stud clamping plate; 3. Slide rail with angled end; 4. Slider; 5. Cylinder guide rod connecting plate; 6. Cylinder mounting plate; 7. Cylinder mechanism; 8. Protective component; 9. Test plate; 10. Welding stud; 21. Clamping plate base; 22. Clamping plate; 23. Body test plate slot; 24. Limiting groove; 51. Slide rail connection part; 52. Cylinder connection part; 81. Test plate protective baffle; 82. Cylinder protective baffle. Detailed Implementation

[0029] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention.

[0030] like Figures 1 to 7 As shown, this application provides an automatic bending test device for thin plate welding, including a fixed component and a moving component.

[0031] The fixed component includes a fixed base plate 1, a welding stud plate 2, a slider 4, and a cylinder mounting plate 6. The welding stud plate 2, the slider 4, and the cylinder mounting plate 6 are all mounted on the fixed base plate 1. The fixed base plate serves to support other components.

[0032] The moving component includes an angled slide rail 3, a cylinder guide rod connecting plate 5, and a cylinder mechanism 7. The angled slide rail 3 is slidably mounted on the slider 4. The cylinder guide rod connecting plate 5 connects the angled slide rail 3 and the cylinder mechanism 7 respectively. The cylinder mechanism 7 is mounted on the cylinder mounting plate 6.

[0033] In the present application, the stud card 2 and the slider 4 are arranged separately on the fixed base plate 1, and the distance is used for placing and taking out the test plate, and provides space for the movement of the end with angle sliding rail.

[0034] In the present application, the stud card 2 comprises a card base 21 and a card 22, the card 22 is fixedly connected with the card base 21, a body test plate clamping groove 23 is formed between the card base 21 and the card 22, and a limiting groove 24 is arranged on the card 22 and communicates with the body test plate clamping groove 23. In the embodiment, the card is made of thick steel plate (16mm), the middle region is a stud limiting region (with a semicircle diameter of 14mm), which satisfies the limitation of commonly used studs φ5mm, φ6mm, φ8mm, etc. of the vehicle body, and a gap slot hole of 32mm*3mm is reserved in the middle region for limiting the body test plate (width=30mm, thickness 0.8mm-2.0mm).

[0035] In the present application, the included angle between the front end face and the bottom face of the end with angle sliding rail 3 is 120 degrees, which realizes the maximum 60-degree bending test of the screw, as shown in Figure 7 .

[0036] In the present application, the cylinder guide rod connecting plate 5 comprises a sliding rail connecting part 51 and a cylinder connecting part 52, the sliding rail connecting part is perpendicular to the cylinder connecting part, and the sliding rail connecting part is a cuboid structure and the cylinder connecting part is a rectangular plate structure.

[0037] In the present application, the lower end face of the cylinder mounting plate 6 is fixed on the fixed base plate, the cylinder mounting plate is composed of a lower mounting plate and an upper mounting plate in an integrated structure, the width of the lower mounting plate is smaller than that of the upper mounting plate, a through hole corresponding to the running direction of the end with angle sliding rail is arranged on the lower mounting plate, and a cylinder rod mounting hole is arranged on the upper mounting plate.

[0038] In the present application, it also comprises a protection assembly part 8, the protection assembly part 8 comprises a test plate protection baffle 81 and a cylinder protection baffle 82, the test plate protection baffle is arranged on the fixed base plate corresponding to the stud card and the slider, and the cylinder protection baffle is fixed on the cylinder.

[0039] The principle of the automatic bending test of the present application is as follows:

[0040] The test plate 9 with stud 10 is put into the stud card 2, then the cylinder mechanism acts on the force, the end with angle sliding rail is pushed to move forward along the slider, contacts the stud on the test plate and pushes the stud to bend according to the angle, after moving to the position, the cylinder mechanism is retracted, the sliding rail moves backward along the slider, and then the stud test plate is taken out to check the test result.

[0041] The test steps are as follows, and the specific embodiments are shown in Figure 8 A and B of the drawings:

[0042] Step 1, open state, put the test plate with soldering nail into the soldering nail card to realize the positioning of the test plate.

[0043] Step 2, the end head with angle slide rail moves along the slide block to carry out the bending test of the soldering nail.

[0044] Step 3, after the bending test is completed, the end head with angle slide rail is withdrawn to the original position.

[0045] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A thin sheet spot weld auto bending test device, characterized by, The fixed assembly part and the mobile assembly part are included. The fixed assembly part includes a fixed bottom plate, a stud welding card plate, a sliding block and a cylinder mounting plate, and the stud welding card plate, the sliding block and the cylinder mounting plate are arranged on the fixed bottom plate. The mobile assembly part includes an end head angle sliding rail, a cylinder guide rod connecting plate and a cylinder mechanism, the end head angle sliding rail is arranged on the sliding block in a sliding mode, the cylinder guide rod connecting plate is connected with the end head angle sliding rail and the cylinder mechanism respectively, and the cylinder mechanism is mounted on the cylinder mounting plate.

2. The sheet bend test apparatus of claim 1, wherein, The stud welding card plate is arranged on the fixed bottom plate separately from the sliding block.

3. The sheet bend test apparatus of claim 1, wherein, The stud welding card plate includes a card plate base and a card plate, the card plate is fixedly connected with the card plate base, a body test plate clamping groove is formed between the card plate base and the card plate, and a limiting groove is arranged on the card plate and communicates with the body test plate clamping groove.

4. The sheet metal autogenous weld bend test apparatus of claim 1 wherein, The included angle between the front end face and the bottom face of the end head angle sliding rail is 120 degrees, so that the maximum 60-degree bending test of the screw can be realized.

5. The sheet metal autogenous weld bend test apparatus of claim 1 wherein, The cylinder guide rod connecting plate includes a sliding rail connecting part and a cylinder connecting part, the sliding rail connecting part is perpendicular to the cylinder connecting part, the sliding rail connecting part is a cuboid structure, and the cylinder connecting part is a rectangular plate structure.

6. The sheet metal autogenous weld bend test apparatus of claim 1 wherein, The lower end face of the cylinder mounting plate is fixed on the fixed bottom plate, the cylinder mounting plate is composed of an integral structure of a lower mounting plate and an upper mounting plate, the width of the lower mounting plate is smaller than the width of the upper mounting plate, a through hole corresponding to the running direction of the end head angle sliding rail is arranged on the lower mounting plate, and a cylinder rod mounting hole is arranged on the upper mounting plate.

7. The sheet metal autogenous weld bend test apparatus of claim 1 wherein, The protection assembly part is further included, the protection assembly part includes a test plate protection baffle and a cylinder protection baffle, the test plate protection baffle is arranged on the fixed bottom plate corresponding to the stud welding card plate and the sliding block, and the cylinder protection baffle is fixed on the cylinder.

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