Cavity short edge spot welding machine

Abstract

The utility model discloses a cavity short edge spot welding machine, which relates to the technical field of workpiece welding, and comprises a base, two racks are fixedly arranged above the base, the two racks are symmetrically arranged, a driving assembly is fixedly arranged above the racks, the driving assembly is electrically connected with an external power supply, and the external power supply is electrically connected with the driving assembly. The welding assembly is fixedly mounted above the driving assembly, the mounting frame is fixedly arranged above the base, the mounting frame is fixedly arranged in the middle of the base, the positioning assemblies are fixedly mounted above the mounting frame, the number of the positioning assemblies is multiple, and the multiple positioning assemblies are symmetrically arranged at the four corners of the mounting frame. According to the automatic production line, the automation degree is high, circular production can be achieved, and the production efficiency is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece welding, specifically relating to a cavity short-side spot welding machine. Background Technology

[0002] Spot welding is a welding method that uses a cylindrical electrode to form a weld point between the contact surfaces of two overlapping workpieces. During spot welding, pressure is first applied to bring the workpieces into close contact, then current is applied, and the contact area melts under resistance heating. After cooling, a weld point is formed. Spot welding is mainly used for welding thin sheet metal stampings with a thickness of less than 4mm, and is particularly suitable for welding automobile bodies and carriages, and aircraft fuselages. However, it cannot be used to weld containers with sealing requirements.

[0003] Existing spot welding machines have low welding efficiency and cannot meet the needs of large-scale spot welding processes. The low level of automation makes it difficult to improve production efficiency.

[0004] Therefore, we propose a cavity short-side spot welding machine. Utility Model Content

[0005] This invention provides a cavity short-side spot welding machine to solve the technical problems mentioned in the background.

[0006] To solve the above-mentioned technical problems, this utility model provides a cavity short-side spot welding machine, including a base, a frame fixedly mounted on the base, two frames are provided and symmetrically arranged, a drive assembly is fixedly mounted on the frame, the drive assembly is electrically connected to an external power supply, a welding assembly is fixedly mounted on the drive assembly, a mounting frame is fixedly provided on the base, the mounting frame is fixedly arranged in the middle of the base, a positioning assembly is fixedly mounted on the mounting frame, multiple positioning assemblies are provided and symmetrically arranged at the four corners of the mounting frame, a workpiece is provided in the middle of the mounting frame, and the four corners of the workpiece correspond to the positioning assemblies respectively.

[0007] Preferably, the positioning component includes a bracket, a bracket is fixedly mounted on the top of the mounting bracket, a gas spring is fixedly mounted on the outside of the bracket, the gas spring is electrically connected to an external power source, a slider is fixedly mounted on the output end of the gas spring, and a pressure block is movably mounted on the top of the slider.

[0008] Preferably, the pressure block and the slider are rotatably connected, and a torsion spring is provided between the pressure block and the slider.

[0009] Preferably, the drive assembly includes a slide rail, which is fixedly installed at the top of the frame. A base frame is slidably installed on the top of the slide rail. A pneumatic rod three is provided on one side of the base frame and is fixedly installed above the frame. A pressure switch is provided on the other side of the base frame and is fixedly installed above the frame.

[0010] Preferably, the welding assembly includes an insulating frame, the insulating frame is fixedly installed inside the frame, a transformer is fixedly installed inside the insulating frame, a second air rod is fixedly installed above the base frame, the second air rod is electrically connected to the transformer, and a welding machine is fixedly installed at the output end of the second air rod.

[0011] Preferably, the welding machine is provided in two sets, the two sets of welding machines are arranged symmetrically, and each set of welding machines consists of five welding heads. The multiple welding heads are arranged at equal intervals, and the transformer corresponds to the welding machine.

[0012] This invention has the following advantages over the prior art:

[0013] This utility model discloses a cavity short-side spot welding machine. The workpiece can be fixed on the mounting frame by the positioning component. Welding components are provided on both sides of the frame. The welding components can weld multiple points at the same time. A drive component is also provided to drive the welding components to move horizontally, effectively increasing the number of weld points. The welding components are equipped with pressure switches to realize the function of automatic reset. The machine has a high degree of automation, can be used for cyclic production, and effectively improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a cavity short-side spot welding machine according to the present invention;

[0015] Figure 2 This is a structural diagram of the mounting frame in a cavity short-side spot welding machine according to the present invention;

[0016] Figure 3 This is a structural diagram of a positioning component in a cavity short-side spot welding machine according to the present invention;

[0017] Figure 4 This is a structural diagram of a welding assembly in a cavity short-side spot welding machine according to the present invention;

[0018] Figure 5 This is a structural diagram of the drive assembly in a cavity short-side spot welding machine according to the present invention;

[0019] The following components are labeled in the diagram: 1. Base; 2. Mounting bracket; 3. Welding assembly; 4. Drive assembly; 5. Workpiece; 6. Positioning assembly; 7. Bracket; 8. Pneumatic rod one; 9. Slider; 10. Pressure block; 11. Frame; 12. Insulation frame; 13. Transformer; 14. Welding machine; 15. Pneumatic rod two; 16. Pneumatic rod three; 17. Base frame; 18. Slide rail; 19. Pressure switch. Detailed Implementation

[0020] Please see Figure 1-5This utility model provides a technical solution: a cavity short-side spot welding machine 14, including a base 1, a frame 11 fixedly installed on the base 1, two frames 11 are provided and the two frames 11 are arranged symmetrically, a drive component 4 is fixedly installed on the frame 11, the drive component 4 is electrically connected to an external power supply, a welding component 3 is fixedly installed on the drive component 4, a mounting frame 2 is fixedly provided on the base 1, the mounting frame 2 is fixedly arranged in the middle position of the base 1, a positioning component 6 is fixedly installed on the mounting frame 2, multiple positioning components 6 are provided and multiple positioning components 6 are symmetrically arranged at the four corners of the mounting frame 2, a workpiece 5 is provided in the middle position of the mounting frame 2, and the four corners of the workpiece 5 correspond to the positioning components 6 respectively.

[0021] Furthermore, the positioning component 6 includes a bracket 7, which is fixedly mounted on the top of the mounting bracket 2. A gas spring 8 is fixedly mounted on the outside of the bracket 7. The gas spring 8 is electrically connected to an external power supply. A slider 9 is fixedly mounted on the output end of the gas spring 8. A pressure block 10 is movably mounted on the top of the slider 9.

[0022] Furthermore, the pressure block 10 is rotatably connected to the slider 9, and a torsion spring is provided between the pressure block 10 and the slider 9.

[0023] Furthermore, the drive assembly 4 includes a slide rail 18, the slide rail 18 is fixedly installed at the top of the frame 11, the base frame 17 is slidably installed on the top of the slide rail 18, a pneumatic rod 16 is provided on one side of the base frame 17, the pneumatic rod 16 is fixedly installed above the frame 11, and a pressure switch 19 is provided on the other side of the base frame 17, the pressure switch 19 is fixedly installed above the frame 11.

[0024] Furthermore, the welding assembly 3 includes an insulating frame 12, an insulating frame 12 is fixedly installed inside the frame 11, a transformer 13 is fixedly installed inside the insulating frame 12, a second air rod 15 is fixedly installed above the base frame 17, the second air rod 15 is electrically connected to the transformer 13, and a welding machine 14 is fixedly installed at the output end of the second air rod 15.

[0025] Furthermore, the welding machine 14 is provided in two sets, the two sets of welding machines 14 are arranged symmetrically, and each set of welding machines 14 consists of five welding heads. The multiple welding heads are arranged at equal intervals, and the transformer 13 corresponds to the welding machine 14.

[0026] Working principle:

[0027] First, place workpiece 5 in the middle of mounting bracket 2. Activate the circuit of pneumatic rod 8. Pneumatic rod 8 moves slider 9 downwards, and slider 9 moves pressure block 10 to fix workpiece 5. A torsion spring structure is used between slider 9 and pressure block 10 to effectively protect workpiece 5. After workpiece 5 is fixed, activate the circuit of pneumatic rod 15. Pneumatic rod 15 pushes welding machine 14 to the surface of workpiece 5 for spot welding. After the first spot welding is completed, pneumatic rod 15 retracts, and pneumatic rod 16 is activated. Pneumatic rod 16 pushes base frame 17 to move, thereby moving welding machine 14. Perform three spot welding operations in sequence, 15 weld points on one side, for a total of 30 weld points. After welding, base frame 17 contacts pressure switch 19. Pressure switch 19 controls pneumatic rod 16 to reset, pneumatic rod 15 to reset, and pneumatic rod 8 to lift, releasing workpiece 5 and removing it, completing one welding process. This process can be repeated cyclically, resulting in a high degree of automation and continuous production, effectively improving production efficiency.

Claims

1. A short-side spot welding machine for cavities, comprising a base (1), characterized in that: The base (1) is fixedly installed above the rack (11), the rack (11) is provided with two, and two rack (11) is symmetrically arranged, the rack (11) is fixedly installed above the driving assembly (4), the driving assembly (4) is electrically connected to the external power supply, the driving assembly (4) is fixedly installed above the welding assembly (3), the base (1) is fixedly provided with a mounting frame (2), the mounting frame (2) is fixedly arranged in the middle of the base (1), the mounting frame (2) is fixedly installed above the positioning assembly (6), the positioning assembly (6) is provided with a plurality of, a plurality of positioning assembly (6) is symmetrically arranged at the four corners of the mounting frame (2), the mounting frame (2) is provided with a workpiece (5) in the middle, the workpiece (5) four corners correspondingly with positioning assembly (6).

2. A short-side spot welder for cavities according to claim 1, characterized in that The positioning assembly (6) comprises a bracket (7), the mounting frame (2) is fixedly installed above the bracket (7), the bracket (7) is fixedly installed outside the air rod (8), the air rod (8) is electrically connected to the external power supply, the air rod (8) output end fixedly installed slide block (9), the slide block (9) top movable mounting block (10).

3. A short-side spot welder for cavities according to claim 2, characterized in that The rotation is connected between the pressing block (10) and the slide block (9), and the torsion spring is arranged between the pressing block (10) and the slide block (9).

4. The short-side spot welder of claim 1, wherein, The driving assembly (4) comprises a slide rail (18), the slide rail (18) is fixedly installed on the top of the rack (11), the slide rail (18) is slidably installed on the top of the bottom frame (17), the bottom frame (17) is provided with an air rod (16) on one side, the air rod (16) is fixedly installed on the top of the rack (11), the bottom frame (17) is provided with a pressure switch (19) on the other side, the pressure switch (19) is fixedly installed on the top of the rack (11).

5. A short-side spot welder for cavities according to claim 4, characterized in that The welding assembly (3) comprises an insulating frame (12), the insulating frame (12) is fixedly installed in the rack (11), the insulating frame (12) is fixedly installed in the transformer (13), the bottom frame (17) is fixedly installed above the air rod (15), the air rod (15) is electrically connected to the transformer (13), the air rod (15) output end fixedly installed welding machine (14).

6. A short-side spot welder for cavities according to claim 5, characterized in that The welding machine (14) is provided with two groups, two groups of welding machine (14) is symmetrically arranged, and each group of welding machine (14) is composed of five welding heads, a plurality of welding heads are equidistantly arranged, and the transformer (13) corresponds to the welding machine (14).

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