Medium-frequency bump electric welding device

Abstract

The utility model provides a medium-frequency salient point electric welding device which comprises a welding machine, a machine frame, an upper welding mechanism and a lower welding mechanism, the upper welding mechanism and the lower welding mechanism are arranged on the machine frame, the upper welding mechanism can move up and down relative to the machine frame, and the lower welding mechanism can move up and down relative to the machine frame. The upper welding mechanism is arranged above the lower welding mechanism, a welding area is formed between the upper welding mechanism and the lower welding mechanism, and the upper welding mechanism and the lower welding mechanism are matched for welding; the feeding machine comprises a base, a rotating mechanism and a rotating disc, the rotating mechanism is installed on the base, the rotating mechanism is connected with the rotating disc and used for driving the rotating disc to rotate, and a plurality of tool positions are arranged on the rotating disc and evenly distributed in the circumferential direction. The upper welding mechanism comprises a plurality of upper electrode tips which are arranged side by side, the upper electrode tips are mutually independent, each upper electrode tip is provided with a telescopic air cylinder, an air cylinder shaft of each telescopic air cylinder is connected with the corresponding upper electrode tip, and the lower welding mechanism is provided with lower electrode tips which correspond to the upper electrode tips in number and are arranged in a one-to-one correspondence mode.

Description

Technical Field

[0001] This utility model relates to a medium-frequency protrusion welding device. Background Technology

[0002] Currently in the welding industry, to improve welding and production efficiency and reduce defective products, companies often choose to use welding machines in conjunction with assembly lines to achieve automated production processes. For some metal shells that are spliced ​​into one piece, welding is usually required at the splice points. However, most welding equipment on the market is a single welding head structure. Therefore, when multiple points need to be welded on a straight line, multiple welding machines are needed in an assembly line to complete the process. Although this can complete the welding process, this type of assembly line welding requires a large space and has limitations in practical applications.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a medium-frequency convex point welding device. This welding device can simultaneously complete the welding work at multiple welding points on the same straight line, while occupying a small floor area.

[0005] This utility model proposes a medium-frequency projection welding device, which includes:

[0006] A welding machine includes a frame and an upper welding mechanism and a lower welding mechanism mounted on the frame. The upper welding mechanism can move up and down relative to the frame, and the lower welding mechanism can move up and down relative to the frame. The upper welding mechanism is located above the lower welding mechanism, and a welding area is formed between the two. The upper welding mechanism and the lower welding mechanism cooperate to weld.

[0007] The feeding machine includes a base, a rotating mechanism and a turntable. The rotating mechanism is mounted on the base and connected to the turntable to drive the turntable to rotate. The turntable is provided with multiple tooling positions, which are evenly distributed circumferentially.

[0008] The upper welding mechanism includes multiple upper electrode heads arranged side by side, each upper electrode head being independent of the others. Each upper electrode head is equipped with a telescopic cylinder, and the cylinder shaft of the telescopic cylinder is connected to the upper electrode head. The lower welding mechanism has a number of lower electrode heads that correspond to the number of upper electrode heads and are arranged one-to-one with them.

[0009] In one or more embodiments, the rotating mechanism includes a drive motor and a reduction gearbox. The reduction gearbox is fixed at the middle position of the base, and the upper end face of the reduction gearbox is the rotation output end. The turntable is mounted on the rotation output end. The drive motor is mounted on the base, and the output end of the drive motor is connected to the input end of the reduction gearbox.

[0010] In one or more embodiments, the upper welding mechanism includes an upper beam for mounting a telescopic cylinder, the upper beam being provided with a guide rail, the telescopic cylinder being slidable along the guide rail and fixed to the upper beam by bolts.

[0011] In one or more embodiments, the lower welding mechanism includes a lifting beam, a lifting cylinder, and multiple lower electrode heads. The multiple lower electrode heads are arranged side by side on the lifting beam, the lifting cylinder is mounted on the frame, and the cylinder shaft of the lifting cylinder is connected to the lifting beam.

[0012] In one or more embodiments, the lifting beam is provided with a fixed seat, which is fixed to the lifting beam by bolts. The fixed seat has a "T"-shaped slot, and the cylinder shaft of the lifting cylinder is connected to a "T"-shaped connector, which is engaged in the slot.

[0013] In one or more embodiments, the lower welding mechanism has two lifting cylinders, which are respectively located on the left and right sides of the lifting beam.

[0014] The beneficial effects of this utility model are: the electric welding device is equipped with multiple upper electrode heads and lower electrode heads arranged side by side, which can realize welding work at multiple welding points on the same straight line, and has the advantages of small footprint and multiple welding positions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the electric welding device in this embodiment;

[0016] Figure 2 This is a schematic diagram of the welding machine in this embodiment. Detailed Implementation

[0017] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0018] Please refer to the appendix. Figure 1-2This utility model provides a medium-frequency convex point welding device, which includes a welding machine 100, including a frame 1 and an upper welding mechanism and a lower welding mechanism mounted on the frame. The upper welding mechanism can move up and down relative to the frame 1, and the lower welding mechanism can also move up and down relative to the frame 1. The upper welding mechanism is located above the lower welding mechanism, and a welding area is formed between the two. The upper welding mechanism cooperates with the lower welding mechanism for welding. A feeding machine 200 includes a base 2, a rotating mechanism, and a turntable 3. The rotating mechanism is mounted on the base 2 and connected to the turntable 3 to drive the turntable to rotate. The turntable is provided with multiple tooling positions 4, which are evenly distributed circumferentially. The upper welding mechanism includes multiple upper electrode heads 5 arranged side by side. Each upper electrode head is independent of each other. Each upper electrode head is equipped with a telescopic cylinder 6, and the cylinder shaft of the telescopic cylinder is connected to the upper electrode head. The lower welding mechanism has a number of lower electrode heads 7 corresponding to the upper electrode heads and arranged one-to-one. The feeding machine in this solution can be used to place the workpiece to be welded, and then the workpiece is sent to the welding area by rotating the turntable. Welding is achieved through the cooperation of the upper welding mechanism and the lower welding mechanism. The upper welding mechanism has multiple upper electrode heads arranged side by side, and the lower welding mechanism has a lower electrode head corresponding to the upper electrode head. By performing welding with all or part of the upper electrode head and the lower electrode head, welding work at multiple welding positions on the same straight line can be achieved.

[0019] The rotating mechanism includes a drive motor 8 and a reduction gearbox 9. The reduction gearbox is fixed in the middle of the base 2, and the upper end of the reduction gearbox is the rotation output end. The turntable 3 is installed on the rotation output end. The drive motor is installed on the base 2, and the output end of the drive motor is connected to the input end of the reduction gearbox. The output power of the drive motor is reduced by the reduction gearbox before being output, which can improve the output torque, ensure the stability of the turntable when rotating, and reduce the displacement problem of the workpiece to be welded due to vibration.

[0020] The upper welding mechanism includes an upper beam 10 for mounting a telescopic cylinder. The upper beam is provided with a guide rail 11. The telescopic cylinder 6 can slide along the guide rail and be fixed to the upper beam with bolts. The user can adjust the position of the telescopic cylinder according to the distribution of the welding position, thereby adjusting the position of the upper electrode head. Correspondingly, the position of the lower electrode head must also be adjusted at the same time. The adjustment method of the lower electrode head is the same as that of the upper electrode head.

[0021] The lower welding mechanism includes a lifting beam 12, a lifting cylinder 13, and multiple lower electrode heads 7. The multiple lower electrode heads are arranged side by side on the lifting beam 12. The lifting cylinder is mounted on the frame 1. The cylinder shaft of the lifting cylinder is connected to the lifting beam. The lifting beam is raised or lowered by extending or retracting the cylinder shaft of the lifting cylinder.

[0022] The lifting beam is provided with a fixed seat 14, which is fixed to the lifting beam by bolts. The fixed seat has a "T" shaped slot. The cylinder shaft of the lifting cylinder 13 is connected to a "T" shaped connector 15, which is inserted into the slot. This structure facilitates the connection between the lifting cylinder and the lifting beam.

[0023] To ensure the stability of the lifting beam during its ascent and descent, the lower welding mechanism has two lifting cylinders 13, which are respectively located on the left and right sides of the lifting beam 12. In addition, a slide rail can be installed between the frame 1 and the lifting beam to make the lifting beam more stable during ascent and descent.

[0024] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A medium-frequency projection welding device, characterized in that, include: The welding machine (100) includes a frame (1) and an upper welding mechanism and a lower welding mechanism disposed on the frame. The upper welding mechanism can move up and down relative to the frame (1), and the lower welding mechanism can move up and down relative to the frame (1). The upper welding mechanism is disposed above the lower welding mechanism and a welding area is formed between the two. The upper welding mechanism and the lower welding mechanism cooperate to weld. The feeding machine (200) includes a base (2), a rotating mechanism and a turntable (3). The rotating mechanism is installed on the base (2) and connected to the turntable (3) to drive the turntable to rotate. The turntable is provided with multiple tooling positions (4) and the multiple tooling positions are evenly distributed circumferentially. The upper welding mechanism includes multiple upper electrode heads (5) arranged side by side, each upper electrode head is independent of each other, and each upper electrode head is equipped with a telescopic cylinder (6). The cylinder shaft of the telescopic cylinder is connected to the upper electrode head. The lower welding mechanism has a number of lower electrode heads (7) that correspond to the number of upper electrode heads and are arranged one-to-one.

2. The medium-frequency projection welding device according to claim 1, characterized in that: The rotating mechanism includes a drive motor (8) and a reduction gearbox (9). The reduction gearbox is fixed in the middle of the base (2). The upper end of the reduction gearbox is the rotation output end. The turntable (3) is installed on the rotation output end. The drive motor is installed on the base (2) and the output end of the drive motor is connected to the input end of the reduction gearbox.

3. The medium-frequency projection welding device according to claim 1, characterized in that: The upper welding mechanism includes an upper beam (10) for mounting a telescopic cylinder. The upper beam is provided with a guide rail (11). The telescopic cylinder (6) can slide along the guide rail and be fixed to the upper beam by bolts.

4. The medium-frequency projection welding device according to claim 1, characterized in that: The lower welding mechanism includes a lifting beam (12), a lifting cylinder (13), and multiple lower electrode heads (7). The multiple lower electrode heads are arranged side by side on the lifting beam (12), and the lifting cylinder is installed on the frame (1). The cylinder shaft of the lifting cylinder is connected to the lifting beam.

5. The medium-frequency projection welding device according to claim 4, characterized in that: The lifting beam is provided with a fixed seat (14), which is fixed to the lifting beam by bolts. The fixed seat has a "T" shaped slot. The cylinder shaft of the lifting cylinder (13) is connected to a "T" shaped connector (15), which is inserted into the slot.

6. The medium-frequency projection welding device according to claim 5, characterized in that: The lower welding mechanism has two lifting cylinders (13), which are respectively located on the left and right sides of the lifting beam (12).

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