A new resistance welding machine

Abstract

The utility model relates to resistance welding technical field especially a new type resistance welding machine, including box, roof beam and floor beam, the upper and lower sides of the front end of box are fixedly connected with roof beam and floor beam respectively, the front end center of roof beam is fixedly connected with power supply box, the inner wall both sides of roof beam all are fixedly connected with lifting cylinder, the output shaft end of lifting cylinder is fixedly connected with lifting platform, the below of lifting platform is installed with adjusting assembly, the front side of the upper end of floor beam is installed with linkage assembly. Through the cooperation between support, conducting rod, lifting platform, lifting cylinder, each slide rod position is along with lifting platform and lifts when spacing adjustment, therefore, after spacing adjustment, still can control conducting rod to move up and down under the action of lifting cylinder and complete spot welding process, effectively avoid the problem that the operator can only adjust the position of the workpiece to be welded by constantly manual adjustment in the traditional technology when the welding point spacing needs to be adjusted, leading to the inconvenient use process and easy to cause artificial error.

Description

Technical Field

[0001] This utility model relates to the field of resistance welding technology, specifically a novel resistance welding machine. Background Technology

[0002] Resistance welding is a method of welding workpieces by applying pressure through electrodes and utilizing the resistance heat generated by the current passing through the contact surface and adjacent areas of the joint. For example, application number "202322090212.0"

[0003] A new type of resistance welding machine includes a worktable, on which a power supply, a pressing mechanism and a positioning mechanism are installed. The pressing mechanism includes a pressing cylinder.

[0004] However, although it can improve welding efficiency, the required weld spacing varies depending on the size or purpose of the workpiece to be welded. In traditional technology, the weld spacing can only be adjusted by the operator by constantly adjusting the position of the workpiece to be welded, which is inconvenient and prone to human error. Furthermore, the conductive rods on the upper and lower sides cannot maintain a relatively synchronous movement during the adjustment process, which can easily lead to misalignment and affect the specific spot welding process. Utility Model Content

[0005] The purpose of this invention is to solve the problem that the required welding point spacing varies depending on the size or purpose of the workpiece to be welded. In traditional technology, the welding point spacing can only be adjusted by the operator by constantly adjusting the position of the workpiece to be welded, which is inconvenient and prone to human error. Furthermore, the conductive rods on the upper and lower sides cannot maintain a relatively synchronous movement during the adjustment process, which can easily lead to misalignment and affect the spot welding process. Therefore, a new type of resistance welding machine is proposed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel resistance welding machine is designed, comprising a housing, a top beam, and a bottom beam. The top beam and bottom beam are fixedly connected to the upper and lower sides of the front end of the housing, respectively. A power supply box is fixedly connected to the center of the front end of the top beam. Lifting cylinders are fixedly connected to both sides of the inner wall of the top beam. A lifting platform is fixedly connected to the end of the output shaft of the lifting cylinder. An adjustment component is installed below the lifting platform. A linkage component is installed on the front side of the upper end of the bottom beam.

[0008] This setup provides power to the conductive rod during spot welding via a power supply box. Through the cooperation of the lifting cylinder and the lifting platform, it can be used to control the lifting and moving of the conductive rod to realize the spot welding process and the material handling process.

[0009] Preferably, the adjustment assembly includes a slide rod and a self-locking cylinder. Multiple self-locking cylinders are fixedly connected to the lower end of the lifting platform. The output shaft ends of each self-locking cylinder are fixedly connected to a bracket. The upper inner wall of the bracket is slidably connected to the slide rod, and multiple slide rods are slidably connected to the lower inner wall of the bracket. The center of the outer wall of each slide rod is fixedly connected to the outer wall of the self-locking cylinder, and an end plate is fixedly connected to the end of each slide rod. Side plates and conductive frames are fixedly connected to the inner and outer sides of the outer wall of the bracket, respectively. Conductive rods are installed on the inner side of the inner wall of each conductive frame.

[0010] This setup involves installing self-locking cylinders on both sides of the support frame, allowing the self-locking cylinders on both sides to start synchronously. This enables the self-locking cylinders on both sides to drive the corresponding support frame to move, thereby causing the support frames on both sides to adjust the spacing on the corresponding conductive rods.

[0011] Preferably, the output shafts of the two self-locking cylinders face opposite directions, and the inner end of the slide rod is fixedly connected to the slider that can slide vertically on the inner wall of the top beam.

[0012] This setting uses multiple slider positions to ensure that each slider rises and falls together with the lifting platform during spacing adjustment. Therefore, even after spacing adjustment, the conductive rod can still be moved up and down under the action of the lifting cylinder to complete the spot welding process.

[0013] Preferably, a slide rod four is slidably connected to the rear inner wall of the lifting platform, and the lower end of the slide rod four is fixedly connected to the box body through a cross plate.

[0014] Preferably, the linkage assembly includes a multi-stage electric push rod and a slide rod three. Multiple slide rod threes are fixedly connected to the upper center front side of the bottom beam. Multiple blocks and conductive frame lower sections are slidably connected to the outer wall of the slide rod three. The blocks and conductive frame lower sections are fixedly connected by connecting rods. Multiple conductive rod lower sections are installed at the upper end of the conductive frame lower section. The inner wall of the blocks is inserted into the output shaft end of the multi-stage electric push rod. The multi-stage electric push rod is connected to the blocks by bolts.

[0015] This design, through the use of electric push rods and blocks, allows for synchronized lateral movement of the conductive rods and conductive frame when the support moves laterally for position adjustment. This effectively achieves coordinated adjustment of the upper and lower conductive rods.

[0016] Preferably, the outer walls of the plurality of multi-stage electric actuators are fixedly connected to the side plates on both sides, and the output shaft ends of the multi-stage electric actuators are tapered.

[0017] This design utilizes a multi-stage electric actuator, which drives the output shaft end to insert into the inner wall of the block. Because the end is tapered, the fit is good.

[0018] The novel resistance welding machine proposed in this utility model has the following advantages:

[0019] By coordinating the self-locking cylinder, bracket, conductive rod, lifting platform, and lifting cylinder, the user can control the simultaneous activation of the two self-locking cylinders when adjustment is needed. This allows the two self-locking cylinders to drive the corresponding brackets on each side to move, which in turn moves the conductive rods on the corresponding sides to adjust the spacing. Simultaneously, the positions of each sliding rod during spacing adjustment rise and fall together with the lifting platform. Therefore, after spacing adjustment, the conductive rods can still be moved up and down under the action of the lifting cylinders to complete the spot welding process. This effectively avoids the problem in traditional technology where adjusting the welding point spacing requires the operator to continuously manually adjust the position of the workpiece to be welded, which leads to inconvenience and is prone to human error.

[0020] Through the cooperation between the multi-stage electric push rod, block, bracket, lower conductive rod, and lower conductive frame, the output shaft end of the multi-stage electric push rod is inserted into the inner wall of the block. Since the end is tapered, the fit is good. Subsequently, when the bracket moves laterally to adjust the position, the lower conductive rod and lower conductive frame can be moved laterally synchronously through the multi-stage electric push rod, block, and connecting rod. This effectively avoids the problem that the conductive rods on the upper and lower sides cannot maintain relatively synchronous movement during the adjustment process, which can easily lead to misalignment and affect the spot welding process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0023] Figure 3 This is a bottom view of the structure of this utility model;

[0024] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point I in the diagram;

[0025] Figure 5 This utility model Figure 3 Schematic diagram of the structure at point B in the diagram;

[0026] Figure 6 This is a schematic diagram of the left-side structure of this utility model;

[0027] Figure 7 This utility model Figure 6 A schematic diagram of the structure at point AA.

[0028] In the diagram: 1. Box body, 2. Power supply box, 3. Adjustment component, 301. Slide rod one, 302. Upper part of the conductive frame, 303. Upper part of the conductive rod, 304. Side plate, 305. Bracket, 306. End plate, 307. Slide rod two, 308. Self-locking cylinder, 4. Linkage component, 401. Slide rod three, 402. Bolt, 403. Connecting rod, 404. Lower part of the conductive frame, 405. Lower part of the conductive rod, 406. Block, 407. Multi-stage electric push rod, 5. Top beam, 6. Bottom beam, 7. Horizontal plate, 8. Lifting cylinder, 9. Slide rod four, 10. Lifting platform. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] See attached document Figure 1-7 In this embodiment, a novel resistance welding machine includes a housing 1, a top beam 5, and a bottom beam 6. The top beam 5 and the bottom beam 6 are fixedly connected to the upper and lower sides of the front end of the housing 1, respectively. A power supply box 2 is fixedly connected to the center of the front end of the top beam 5. The power supply box 2 provides power to the conductive rod structure. Lifting cylinders 8 are fixedly connected to both sides of the inner wall of the top beam 5. The lifting cylinders 8 are self-locking cylinders, and the specific model can be determined according to the specific application. A lifting platform 10 is fixedly connected to the end of the output shaft of the lifting cylinder 8. An adjustment component 3 is installed below the lifting platform 10. A linkage component 4 is installed on the front side of the upper end of the bottom beam 6. A sliding rod 9 is slidably connected to the inner wall of the rear side of the lifting platform 10. The lower end of the sliding rod 9 is fixedly connected to the housing 1 through a horizontal plate 7.

[0031] See attached document Figure 1-7 In this embodiment, the adjustment component 3 includes a slide rod 301 and a self-locking cylinder 308. Multiple self-locking cylinders 308 are fixedly connected to the lower end of the lifting platform 10. Each output shaft of the self-locking cylinder 308 is fixedly connected to a bracket 305. The model of the self-locking cylinder 308 can be determined according to specific usage requirements. The slide rod 301 is slidably connected to the upper inner wall of the bracket 305, and multiple slide rods 307 are slidably connected to the lower inner wall of the bracket 305. The center of the outer wall of each slide rod 307 is connected to the self-locking cylinder. The outer wall of cylinder 308 is fixedly connected, and the end plate 306 is fixedly connected to the end of slide rod 307. The inner and outer sides of the outer wall of bracket 305 are respectively fixedly connected to side plate 304 and conductive frame 302. A plug hole for powering conductive rod 303 is installed at conductive frame 302. Conductive rod 303 is installed on the inner side of the inner wall of conductive frame 302. The output shafts of the self-locking cylinders 308 on both sides face opposite directions. The inner end of slide rod 301 is fixedly connected to the slider that can slide vertically on the inner wall of top beam 5.

[0032] See attached document Figure 1-7In this embodiment, the linkage component 4 includes a multi-stage electric push rod 407 and a sliding rod 401. Multiple sliding rods 401 are fixedly connected to the upper center front side of the bottom beam 6. The model of the multi-stage electric push rod 407 can be determined according to specific usage requirements. Multiple blocks 406 and a lower conductive frame 404 are slidably connected to the outer wall of the sliding rod 401. The blocks 406 and the lower conductive frame 404 are fixedly connected by a connecting rod 403. Multiple lower conductive rods 405 are installed at the upper end of the lower conductive frame 404. A plug hole for supplying power to the lower conductive rods 405 is installed at the lower conductive frame 404. The inner wall of the blocks 406 is inserted into the end of the output shaft of the multi-stage electric push rod 407. The multi-stage electric push rod 407 is connected to the blocks 406 by bolts 402. The outer walls of the multiple multi-stage electric push rods 407 are fixedly connected to the side plates 304 on both sides. The end of the output shaft of the multi-stage electric push rod 407 is tapered. Because the end is tapered, the fitting effect is better.

[0033] Working principle:

[0034] When this new resistance welding machine is needed, firstly, the user stacks the workpieces to be resisted welded and places them at the lower 405 of multiple conductive rods using tools or a robotic arm. The position to be welded is aligned with the lower 405 of the conductive rod. Then, the lifting cylinder 8 is activated, causing the upper 303 of the conductive rod to move downwards until the upper 303 and lower 405 of the conductive rod have pressed against the stacked workpieces. The lifting stops then. Next, power is supplied to the upper 303 and lower 405 of the conductive rod through the power supply box 2. The resistance heat generated by the current passing through the workpiece and the contact area is used as a heat source to locally heat the workpiece. At the same time, pressure is applied for welding. The resistance heat melts the base metal to form the resistance weld. After welding is completed, the user can control the lifting cylinder 8 to lift the upper 303 of the conductive rod off the upper surface of the workpiece. The welded workpiece can then be removed using tools or a robotic arm.

[0035] However, different workpieces have different sizes or uses, so the required weld point spacing is also different. In traditional technology, adjusting the weld point spacing can only be done by the operator constantly adjusting the position of the workpiece, which is inconvenient and prone to human error. Therefore, this invention designs an adjustment component 3, which allows the user to control the simultaneous activation of the two self-locking cylinders 308 when adjustment is needed. The two self-locking cylinders 308 drive the corresponding brackets 305 to move, and the two brackets 305 drive the conductive rods 303 on the corresponding sides to adjust the spacing. At the same time, the positions of each slider during spacing adjustment are raised and lowered together with the lifting platform 10. Therefore, after the spacing is adjusted, the conductive rods 303 can still be moved up and down under the action of the lifting cylinder 8 to complete the spot welding process. This effectively avoids the problem of the traditional technology where adjusting the weld point spacing can only be done by the operator constantly adjusting the position of the workpiece, which is inconvenient and prone to human error.

[0036] Meanwhile, this design incorporates a linkage component 4, which, during spacing adjustment, first controls the multi-stage electric push rod 407 to start, causing the output shaft end of the multi-stage electric push rod 407 to insert into the inner wall of the block 406. Due to the tapered end, the fit is good. Subsequently, when the bracket 305 moves laterally for position adjustment, the multi-stage electric push rod 407, the block 406, and the connecting rod 403 can then drive the lower conductive rod 405 and the lower conductive frame 404 to move laterally in a synchronized manner. This effectively avoids the problem of the conductive rods on the upper and lower sides not being able to maintain relatively synchronized movement during the adjustment process, which could easily lead to misalignment and affect the spot welding process. Finally, the electric push rod, cylinder, and power supply box involved in this design can all be synchronized and controlled by a PLC controller.

[0037] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A novel resistance welding machine, comprising a housing (1), a top beam (5), and a bottom beam (6), wherein the top beam (5) and the bottom beam (6) are respectively fixed to the upper and lower sides of the front end of the housing (1), characterized in that: A power supply box (2) is fixedly connected to the center of the front end of the top beam (5). Lifting cylinders (8) are fixedly connected to both sides of the inner wall of the top beam (5). A lifting platform (10) is fixedly connected to the end of the output shaft of the lifting cylinder (8). An adjustment component (3) is installed below the lifting platform (10). A linkage component (4) is installed on the front side of the upper end of the bottom beam (6).

2. The novel resistance welding machine according to claim 1, characterized in that: The adjustment assembly (3) includes a slide rod (301) and a self-locking cylinder (308). Multiple self-locking cylinders (308) are fixedly connected to the lower end of the lifting platform (10). The output shaft ends of the self-locking cylinders (308) are all fixedly connected to a bracket (305). The upper inner wall of the bracket (305) is slidably connected to the slide rod (301). Multiple slide rods (307) are slidably connected to the lower inner wall of the bracket (305). The center of the outer wall of the slide rod (307) is fixedly connected to the outer wall of the self-locking cylinder (308). The end of the slide rod (307) is fixedly connected to an end plate (306). The inner and outer sides of the outer wall of the bracket (305) are respectively fixedly connected to a side plate (304) and a conductive frame (302). The inner side of the inner wall of the conductive frame (302) is equipped with a conductive rod (303).

3. The novel resistance welding machine according to claim 2, characterized in that: The output shafts of the self-locking cylinders (308) on both sides face opposite directions, and the inner end of the slide bar (301) is fixedly connected to the slider that can slide vertically on the inner wall of the top beam (5).

4. The novel resistance welding machine according to claim 1, characterized in that: The rear inner wall of the lifting platform (10) is slidably connected to a slide rod four (9), and the lower end of the slide rod four (9) is fixedly connected to the box body (1) through a horizontal plate (7).

5. The novel resistance welding machine according to claim 1, characterized in that: The linkage component (4) includes a multi-stage electric push rod (407) and a slide rod three (401). Multiple slide rod three (401) are fixedly connected to the upper center front side of the bottom beam (6). Multiple blocks (406) and a conductive frame lower (404) are slidably connected to the outer wall of the slide rod three (401). The blocks (406) and the conductive frame lower (404) are fixedly connected by a connecting rod (403). Multiple conductive rod lower (405) are installed at the upper end of the conductive frame lower (404). The inner wall of the block (406) is inserted into the output shaft end of the multi-stage electric push rod (407). The multi-stage electric push rod (407) is connected to the block (406) by bolts (402).

6. The novel resistance welding machine according to claim 5, characterized in that: The outer walls of the multiple multi-stage electric actuators (407) are fixedly connected to the side plates (304) on both sides, and the output shaft ends of the multi-stage electric actuators (407) are tapered.

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