Automatic spot welding machine

Abstract

The utility model discloses an automatic spot welding machine, which belongs to the technical field of product spot welding improvement, and comprises a bottom plate, a support plate arranged on the bottom plate, a fixed seat arranged on the support plate, an up-down cylinder arranged on the fixed seat, a connecting block arranged at the moving end of the up-down cylinder, and a sliding plate connected below the connecting block, guide plates are arranged on the fixing base and located on the two sides of the sliding plate, an air cylinder installation plate is arranged on the sliding plate and rotationally connected with the bottoms of the left-right air cylinders, a left electrode installation plate is arranged on the air cylinder installation plate, a left electrode is arranged on the left electrode installation plate, and the moving ends of the left-right air cylinders are rotationally connected with a driving plate. The left electrode mounting plate is rotationally connected with the right electrode mounting plate, and a right electrode is arranged on the right electrode mounting plate. According to the automatic spot welding machine, the product spot welding process can be automatically carried out, and the defect that non-spot-welded products and spot-welded defective products flow into a non-defective product box through manual operation is overcome.

Description

Technical Field

[0001] The utility model relates to an automatic spot welder, belonging to the technical field of product spot welding improvement. Background Art

[0002] In the prior art, a manual spot welding mechanism is adopted. Specifically, after an employee places the product, he steps on the pedal, and the pneumatic mechanism of the spot welding mechanism presses down. After reaching the position, a signal is given to the welder to start discharging (spot welding). Then, after discharging (spot welding), the pneumatic mechanism lifts up, and the employee takes out the product and puts it into the good product box. Although the above process has the advantage of convenient operation for employees, there are the following problems: it is easy for employees to flow the un-spot-welded products into the good product box, and in addition, it is easy to flow the poorly spot-welded products into the good product box. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an automatic spot welder, which can automatically carry out the product spot welding process and avoid the defect that un-spot-welded products and poorly spot-welded products flow into the good product box due to manual operation.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] An automatic spot welder includes a bottom plate, a support plate is arranged on the bottom plate, a fixed seat is arranged on the support plate, an up-and-down air cylinder is arranged on the fixed seat, a connecting block is arranged at the moving end of the up-and-down air cylinder, a sliding plate is connected below the connecting block, guide plates are arranged on the fixed seat on both sides of the sliding plate, a cylinder mounting plate is arranged on the sliding plate, the cylinder mounting plate is rotatably connected to the bottom of the left-and-right air cylinder, a left electrode mounting plate is arranged on the cylinder mounting plate, a left electrode is arranged on the left electrode mounting plate, the moving end of the left-and-right air cylinder is rotatably connected to a driving plate, a right electrode mounting plate is arranged on the driving plate, the left electrode mounting plate is rotatably connected to the right electrode mounting plate, and a right electrode is arranged on the right electrode mounting plate.

[0006] A reinforcing plate is arranged between the bottom plate and the support plate.

[0007] The guide plate is of an L-shaped structure.

[0008] Rotation holes are respectively formed in the left electrode mounting plate and the right electrode mounting plate, and a rotation pin is arranged in the two rotation holes.

[0009] The left-and-right air cylinders are respectively rotatably connected to the cylinder mounting plate and the driving plate through pin shafts.

[0010] The connecting block and the sliding plate are connected by bolts.

[0011] The fixed seat and the up-and-down air cylinder are connected through an upper connecting plate and a lower connecting plate.

[0012] The upper and lower cylinders and the left and right cylinders are connected to the PLC controller.

[0013] Advantages of the present utility model: The present utility model provides an automatic spot welder. A connecting block is arranged at the moving end of the upper and lower cylinders. A sliding plate is connected below the connecting block. The cylinder mounting plate is rotatably connected to the bottom of the left and right cylinders. The moving end of the left and right cylinders is rotatably connected to the driving plate. By setting the upper and lower cylinders to drive the spot welding structure to move up and down, and then driving the left and right electrodes to approach and move away by the left and right cylinders, the automatic operation of the spot welder can be realized, without manual operation, and the defect that un-spot-welded products and poorly spot-welded products flow into the good product box due to manual operation can be avoided. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a fixing device for the middle cover assembly of an automatic spot welder of the present utility model;

[0015] Figure 2 is an enlarged schematic structural diagram of the position of the sliding plate of the present utility model;

[0016] Figure 3 is a front view structural diagram of the position of the sliding plate of the present utility model.

[0017] The reference numerals in the drawings are as follows: 1 - fixed seat; 2 - upper and lower cylinders; 3 - connecting block; 4 - sliding plate; 5 - guide plate; 6 - cylinder mounting plate; 7 - left and right cylinders; 8 - left electrode mounting plate; 9 - left electrode; 10 - driving plate; 11 - right electrode mounting plate; 12 - right electrode; 13 - rotation hole; 14 - bottom plate; 15 - support plate. Specific Embodiments

[0018] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0019] Embodiment 1

[0020] As Figures 1 to 3As shown in the figure, the utility model discloses an automatic spot welder, which comprises a bottom plate 14, a support plate 15 is arranged on the bottom plate 14, and a fixed seat 1 is arranged on the support plate 15. A vertical cylinder 2 is arranged on the fixed seat 1, a connecting block 3 is arranged at the moving end of the vertical cylinder 2, a sliding plate 4 is connected below the connecting block 3, and the vertical cylinder 2 drives the sliding plate 4 to move up and down. Guide plates 5 are arranged on both sides of the sliding plate 4 on the fixed seat 1, and the guide plates 5 are used to guide the sliding plate 4. A cylinder mounting plate 6 is arranged on the sliding plate 4, the cylinder mounting plate 6 is rotatably connected to the bottom of the left and right cylinder 7, a left electrode mounting plate 8 is arranged on the cylinder mounting plate 6, and a left electrode 9 is arranged on the left electrode mounting plate 8. The moving end of the left and right cylinder 7 is rotatably connected to a driving plate 10, a right electrode mounting plate 11 is arranged on the driving plate 10, the left electrode mounting plate 8 is rotatably connected to the right electrode mounting plate 11, and a right electrode 12 is arranged on the right electrode mounting plate 11. When the left and right cylinder 7 expands and contracts, the right electrode mounting plate 12 can be driven to rotate relative to the left electrode mounting plate 8.

[0021] The working principle of the utility model is as follows: The product is shifted to the lower part of the mechanism of the utility model by a turntable. After the vertical cylinder 2 drives the sliding plate 4 to move downward to a specified position, the left and right cylinder 7 extends, driving the right electrode mounting plate 11 to rotate, so that the right electrode 12 approaches the left electrode 9 and closes. Then the welder starts to discharge (spot welding). After the spot welding is completed, the left and right cylinder 7 contracts, so that the right electrode 1 opens to the right. The vertical cylinder 2 drives the sliding plate 4 to move up and down. After reaching the position, the turntable shifts the product to the next workstation, and then the above process is repeated.

[0022] By arranging the vertical cylinder to drive the spot welding structure to move up and down, and then driving the left and right electrodes to approach and separate by the left and right cylinder, the utility model can realize the automatic operation of the spot welder, without manual operation, and can avoid the defect that the un-spot-welded products and the products with poor spot welding flow into the good product box due to manual operation.

[0023] Embodiment 2

[0024] As Figures 1 to 3 As shown in the figure, the utility model discloses an automatic spot welder, which comprises a bottom plate 14, a support plate 15 is arranged on the bottom plate 14, and a reinforcing plate 16 is arranged between the bottom plate 14 and the support plate 15. A fixed seat 1 is arranged on the support plate 15. A vertical cylinder 2 is arranged on the fixed seat 1, and the fixed seat 1 and the vertical cylinder 2 are connected by an upper connecting plate and a lower connecting plate. A connecting block 3 is arranged at the moving end of the vertical cylinder 2, a sliding plate 4 is connected below the connecting block 3, and the connecting block 3 and the sliding plate 4 are connected by bolts. The vertical cylinder 2 drives the sliding plate 4 to move up and down. Guide plates 5 are arranged on both sides of the sliding plate 4 on the fixed seat 1, and the guide plates 5 are used to guide the sliding plate 4. The guide plate 5 is an L-shaped structure and can limit the upward stroke of the sliding plate 4.

[0025] A cylinder mounting plate 6 is provided on the skateboard 4. The cylinder mounting plate 6 is rotatably connected to the bottom of the left and right cylinders 7. A left electrode mounting plate 8 is provided on the cylinder mounting plate 6, and a left electrode 9 is provided on the left electrode mounting plate 8. The moving ends of the left and right cylinders 7 are rotatably connected to the driving plate 10. The left and right cylinders 7 are respectively rotatably connected to the cylinder mounting plate 6 and the driving plate 10 through pins. A right electrode mounting plate 11 is provided on the driving plate 10, and the left electrode mounting plate 8 is rotatably connected to the right electrode mounting plate 11. Specifically, rotation holes 13 are respectively formed on the left electrode mounting plate 8 and the right electrode mounting plate 11, and a rotation pin is arranged in the two rotation holes 13. A right electrode 12 is provided on the right electrode mounting plate 11. When the left and right cylinders 7 expand and contract, the right electrode mounting plate 12 can be driven to rotate relative to the left electrode mounting plate 8.

[0026] In the present utility model, the upper and lower cylinders 2 and the left and right cylinders 7 are connected to the PLC controller, and automatic control is realized through the PLC control program.

[0027] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An automatic spot welding machine, characterized in that: The invention comprises a bottom plate (14), a support plate (15) being arranged on the bottom plate (14), a fixing seat (1) being arranged on the support plate (15), an upper and lower cylinders (2) being arranged on the fixing seat (1), a connecting block (3) being arranged at the moving end of the upper and lower cylinders (2), a slide plate (4) being connected below the connecting block (3), guide plates (5) being arranged on both sides of the slide plate (4) on the fixing seat (1), a cylinder mounting plate (6) being arranged on the slide plate (4), and the cylinder mounting plate (6) being arranged on the cylinder mounting plate (6). The plate (6) is rotatably connected to the bottom of the left and right cylinders (7); a left electrode mounting plate (8) is provided on the cylinder mounting plate (6); a left electrode (9) is provided on the left electrode mounting plate (8); the moving ends of the left and right cylinders (7) are rotatably connected to the driving plate (10); a right electrode mounting plate (11) is provided on the driving plate (10); the left electrode mounting plate (8) is rotatably connected to the right electrode mounting plate (11); and a right electrode (12) is provided on the right electrode mounting plate (11).

2. The automatic spot welding machine according to claim 1, characterized in that: A reinforcing plate (16) is provided between the bottom plate (14) and the supporting plate (15).

3. The automatic spot welding machine according to claim 1, characterized in that: The guide plate (5) is an L-shaped structure.

4. The automatic spot welding machine according to claim 1, characterized in that: The left electrode mounting plate (8) and the right electrode mounting plate (11) are respectively provided with rotation holes (13), and rotation pins are arranged in the two rotation holes (13).

5. The automatic spot welding machine according to claim 1, characterized in that: The left and right cylinders (7) are rotatably connected to the cylinder mounting plate (6) and the drive plate (10) respectively via pins.

6. The automatic spot welding machine according to claim 1, characterized in that: The connecting block (3) and the sliding plate (4) are connected via bolts.

7. The automatic spot welding machine according to claim 1, characterized in that: The fixing seat (1) and the upper and lower cylinders (2) are connected via an upper connecting plate and a lower connecting plate.

8. The automatic spot welding machine according to claim 1, characterized in that: The upper and lower cylinders (2) and the left and right cylinders (7) are connected to a PLC controller.

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