Welding jig for spot welding machine operation

Abstract

The utility model belongs to the technical field of spot welding machines, and particularly relates to a welding jig for spot welding machine operation, which comprises a spot welding machine and a spot welding table, an adjusting device is arranged on the upper surface of the spot welding table, the adjusting device comprises a pushing unit, a rotating unit and a clamping unit, a welding device is arranged at the top of the spot welding machine, and the clamping unit is arranged at the bottom of the spot welding machine. The welding device comprises a welding unit and a rotating unit. According to the welding jig for spot welding machine operation, when a part needs to be clamped and fixed, an electromagnetic coil is powered on, so that a permanent magnet block is driven to move towards the outer side in a moving cavity, a sliding rod and a clamping plate are pushed to move towards the outer side, the parts of different sizes are clamped and fixed, the application range of the device is widened, and the practicability is high. When the part needs to be subjected to face-changing spot welding, the rotating motor is started to drive the rotating shaft to rotate, and then the rotating table is driven to rotate, so that the part between the rotating table and the mounting table is turned over, and spot welding machining is more convenient to carry out.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding machines, in particular to a welding fixture used for spot welding machine operations. Background Art

[0002] Spot welding machine is a kind of mechanical equipment, which adopts the principle of double-sided double-point overcurrent welding. When working, two electrodes pressurize the workpiece so that the two layers of metal form a certain contact resistance under the pressure of the two electrodes, and when the welding current flows from one electrode to the other, an instantaneous heat welding is formed at the two contact resistance points. However, when welding automotive parts with existing devices, workers are generally required to manually load and unload materials, which has high labor intensity and low efficiency.

[0003] For example, Chinese patent announcement No. CN218311425U discloses an automobile spare parts positioning fixture for a spot welding machine. When in use, the automobile spare part body is first placed on a conveyor belt and conveyed to one side of the spot welding machine body to touch a pressure sensor. The pressure sensor transmits a signal to a controller, and the controller controls the hydraulic rod to start pushing the automobile spare part body to the upper end of the copper table. The infrared sensor senses the automobile spare part body and transmits a signal to the controller. The controller controls the electric telescopic rod to extend so that the rubber plate contacts both ends of the automobile spare part body, and the automobile spare part body is positioned to make it more stable during the welding process. After the welding is completed, the electric telescopic rod contracts, and the electric push rod is started to extend to drive the push piece to push the automobile spare part body to the inside of the placement box.

[0004] However, the automobile parts positioning fixture used in the spot welding machine in the above application often needs to spot weld different surfaces of the parts when spot welding the parts, and the device needs to repeatedly turn the parts over for positioning and spot welding, which reduces the processing efficiency. Therefore, there are certain limitations.

[0005] To this end, we urgently need to provide welding jigs for spot welding operations. Utility Model Content

[0006] The purpose of the utility model is to provide a welding jig for spot welding machine operation to solve the problem that the automobile parts positioning jig for spot welding machine proposed in the above background technology often needs to spot weld different surfaces of the parts when spot welding the parts, and the device needs to repeatedly turn over the parts for positioning and spot welding, which reduces the processing efficiency.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a welding jig for spot welding machine operation, comprising a spot welding machine and a spot welding table, wherein the spot welding table is fixedly connected to the front center of the spot welding machine, an adjustment device is arranged on the upper surface of the spot welding table, and a welding device is arranged on the top of the spot welding machine.

[0008] The adjusting device comprises a pushing unit, a rotating unit and a clamping unit.

[0009] The pushing unit includes a mounting plate, a telescopic cylinder, a telescopic rod, a positioning seat, and a positioning rod. The mounting plate is fixedly connected to the front end of the upper surface of the spot welding table, the telescopic cylinder is installed on the front side of the mounting plate, the telescopic rod is slidably connected to the inside of the rear end of the telescopic cylinder, and its rear end passes through the mounting plate, the positioning seat is fixedly connected to the top of the telescopic cylinder, the positioning rod is slidably connected to the inside of the positioning seat, and its rear end also passes through the mounting plate, and the telescopic rod is driven to move backward by the telescopic cylinder, thereby driving the parts clamped by the clamping unit to move backward for spot welding.

[0010] A further improvement is that the rotating unit includes a mounting platform, a bearing, a rotating drum, and an electromagnetic coil. The mounting platform is fixedly connected to the rear ends of the telescopic rod and the positioning rod, the bearing is installed inside the mounting platform, the rotating drum is rotatably connected to the inside of the bearing, and the electromagnetic coil is installed on the inner wall of the rotating drum. When it is necessary to adjust different surfaces of the parts for spot welding, the rotating drum can be driven to rotate inside the bearing. It is more convenient and quick to use, and the processing efficiency is improved.

[0011] A further improvement is that the clamping unit includes a fixed block, a permanent magnet block, a sliding rod, and a clamping plate, the fixed block is fixedly connected to the inner wall of the electromagnetic coil, the permanent magnet block is slidably connected to the inside of the fixed block, the sliding rod is fixedly connected to the outer surface of the permanent magnet block, and the clamping plate is fixedly connected to the outer end of the sliding rod.

[0012] A further improvement is that a movable cavity is opened inside the fixed block, the permanent magnet block is slidably connected to the inside of the movable cavity, a through hole is opened at the center of the outer surface of the fixed block, and the sliding rod is slidably connected to the inside of the through hole. When the parts need to be clamped and fixed, the electromagnetic coil is energized to drive the permanent magnet block to move outward inside the movable cavity, thereby pushing the sliding rod and the clamping plate to move outward, so that parts of different sizes can be clamped and fixed, thereby improving the application scope of the device.

[0013] A further improvement is that there are four groups of clamping units, which are fixedly installed on the inner wall of the electromagnetic coil in a ring shape, and the four clamping plates cooperate with each other to better clamp and fix the parts to avoid loosening during spot welding.

[0014] A further improvement is that the welding device comprises a welding unit and a rotating unit.

[0015] The welding unit includes a lifting cylinder, a lifting rod, and a spot welding component. The lifting cylinder is installed on the top of the spot welding machine, the lifting rod is slidably connected to the bottom of the lifting cylinder, and the spot welding component is installed on the bottom of the lifting rod. The lifting cylinder drives the lifting rod to move downward, thereby driving the spot welding component to move downward, so as to perform spot welding on the parts.

[0016] A further improvement is that the rotating unit includes a base, a rotating motor, a rotating shaft, and a turntable. The base is fixedly connected to the rear end of the upper surface of the spot welding table, the rotating motor is installed inside the base, the rear end of the rotating shaft is connected to the output end of the rotating motor, and the turntable is fixedly connected to the front end of the rotating shaft. When it is necessary to spot weld the parts on the other side, the rotating motor is started to drive the rotating shaft to rotate, and then drive the turntable to rotate, so as to turn over the parts between the turntable and the mounting table, which is more convenient for spot welding.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The welding fixture used for spot welding machine operation drives the telescopic rod to move backward through the telescopic cylinder, thereby driving the parts clamped by the clamping unit to move backward and contact with the turntable, thereby fixing the position of the parts to facilitate spot welding.

[0019] 2. When the welding fixture used for spot welding machine operation needs to clamp and fix the parts, the electromagnetic coil is energized to drive the permanent magnet block to move outward inside the moving cavity, thereby pushing the sliding rod and the clamping plate to move outward, clamping and fixing parts of different sizes, thereby improving the application range of the device.

[0020] 3. When the welding fixture used for spot welding machine operation needs to spot weld the parts on the other side, the rotating motor is started to drive the rotating shaft to rotate, and then the turntable is driven to rotate, so as to turn over the parts between the turntable and the mounting table, which is more convenient for spot welding processing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 It is a side view structural schematic diagram of the utility model;

[0023] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 It is a schematic diagram of the disassembled structure of the regulating device of the utility model from a side view.

[0025] In the figure: 1, spot welding machine; 2, spot welding table; 301, mounting plate; 302, telescopic cylinder; 303, telescopic rod; 304, positioning seat; 305, positioning rod; 306, mounting table; 307, bearing; 308, rotating drum; 309, electromagnetic coil; 310, fixed block; 311, permanent magnet block; 312, sliding rod; 313, clamping plate; 401, lifting cylinder; 402, lifting rod; 403, spot welding component; 404, base; 405, rotating motor; 406, rotating shaft; 407, turntable. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] The welding fixture for spot welding machine operation comprises a spot welding machine 1 and a spot welding table 2. The spot welding table 2 is fixedly connected to the front center of the spot welding machine 1. An adjusting device is arranged on the upper surface of the spot welding table 2. A welding device is arranged on the top of the spot welding machine 1.

[0030] The adjusting device comprises a pushing unit and a rotating unit.

[0031] The pushing unit includes a mounting plate 301, a telescopic cylinder 302, a telescopic rod 303, a positioning seat 304, and a positioning rod 305. The mounting plate 301 is fixedly connected to the front end of the upper surface of the spot welding table 2, the telescopic cylinder 302 is installed on the front side of the mounting plate 301, the telescopic rod 303 is slidably connected to the inside of the rear end of the telescopic cylinder 302, and its rear end passes through the mounting plate 301, the positioning seat 304 is fixedly connected to the top of the telescopic cylinder 302, the positioning rod 305 is slidably connected to the inside of the positioning seat 304, and its rear end also passes through the mounting plate 301, and the telescopic rod 303 is driven to move backward by the telescopic cylinder 302, thereby driving the parts clamped by the clamping unit to move backward for spot welding.

[0032] The rotating unit includes a mounting platform 306, a bearing 307, and a rotating drum 308. The mounting platform 306 is fixedly connected to the rear ends of the telescopic rod 303 and the positioning rod 305, the bearing 307 is installed inside the mounting platform 306, and the rotating drum 308 is rotatably connected to the inside of the bearing 307. When it is necessary to adjust different surfaces of the parts for spot welding, the rotating drum 308 can be driven to rotate inside the bearing 307. It is more convenient and quick to use, and the processing efficiency is improved.

[0033] The welding device includes a welding unit and a rotating unit.

[0034] The welding unit includes a lifting cylinder 401, a lifting rod 402, and a spot welding component 403. The lifting cylinder 401 is installed on the top of the spot welding machine 1, the lifting rod 402 is slidably connected to the bottom of the lifting cylinder 401, and the spot welding component 403 is installed on the bottom of the lifting rod 402. The lifting cylinder 401 drives the lifting rod 402 to move downward, thereby driving the spot welding component 403 to move downward, so as to spot weld the parts.

[0035] The rotating unit includes a base 404, a rotating motor 405, a rotating shaft 406, and a turntable 407. The base 404 is fixedly connected to the rear end of the upper surface of the spot welding table 2, the rotating motor 405 is installed inside the base 404, the rear end of the rotating shaft 406 is connected to the output end of the rotating motor 405, and the turntable 407 is fixedly connected to the front end of the rotating shaft 406. When it is necessary to spot weld the parts on the other side, the rotating motor 405 is started to drive the rotating shaft 406 to rotate, and then drive the turntable 407 to rotate, so as to turn over the parts between the turntable 407 and the mounting table 306, which is more convenient for spot welding.

[0036] When in use, first place the part on the spot welding table 2, then start the telescopic cylinder 302 to drive the telescopic rod 303 to move backward, thereby driving the rotating drum 308 on the mounting table 306 to move backward, thereby pushing the other end of the part to contact the turntable 407, thereby clamping the part, and then start the lifting cylinder 401 to drive the lifting rod 402 to move downward, thereby driving the spot welding component 403 to move downward, thereby spot welding the part. When it is necessary to spot weld the part on the other side, start the rotating motor 405 to drive the rotating shaft 406 to rotate, and then drive the turntable 407 to rotate, thereby driving the rotating drum 308 to rotate inside the bearing 307, thereby driving the part between the turntable 407 and the rotating drum 308 to turn over, which is more convenient for spot welding.

[0037] Embodiment 2:

[0038] On the basis of Example 1, the adjusting device also includes an electromagnetic coil 309 and a clamping unit. The electromagnetic coil 309 is installed on the inner wall of the rotating drum 308. The clamping unit includes a fixed block 310, a permanent magnet block 311, a sliding rod 312, and a clamping plate 313. The fixed block 310 is fixedly connected to the inner wall of the electromagnetic coil 309, the permanent magnet block 311 is slidably connected to the inside of the fixed block 310, the sliding rod 312 is fixedly connected to the outer surface of the permanent magnet block 311, and the clamping plate 313 is fixedly connected to the outer end of the sliding rod 312.

[0039] A moving cavity is provided inside the fixed block 310, and the permanent magnet block 311 is slidably connected inside the moving cavity. A through hole is provided at the center of the outer surface of the fixed block 310, and the sliding rod 312 is slidably connected inside the through hole.

[0040] There are four groups of clamping units, which are fixedly installed on the inner wall of the electromagnetic coil 309 in a ring shape. The four clamping plates 313 cooperate with each other to better clamp and fix the parts to prevent them from loosening during the spot welding process.

[0041] When the parts need to be clamped and fixed, the electromagnetic coil 309 is energized to drive the permanent magnet block 311 to move outward inside the movable cavity, thereby pushing the slide rod 312 and the clamping plate 313 to move outward, clamping and fixing parts of different sizes, thereby improving the application range of the device.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A welding jig for spot welding operation, comprising a spot welding machine (1) and a spot welding platform (2), wherein the spot welding platform (2) is fixedly connected to the front center of the spot welding machine (1), and is characterized in that: The upper surface of the spot welding table (2) is provided with an adjusting device, and the top of the spot welding machine (1) is provided with a welding device; The adjusting device comprises a pushing unit, a rotating unit and a clamping unit; The pushing unit comprises a mounting plate (301), a telescopic cylinder (302), a telescopic rod (303), a positioning seat (304), and a positioning rod (305); the mounting plate (301) is fixedly connected to the front end of the upper surface of the spot welding table (2); the telescopic cylinder (302) is installed on the front side of the mounting plate (301); the telescopic rod (303) is slidably connected to the inside of the rear end of the telescopic cylinder (302), and its rear end passes through the mounting plate (301); the positioning seat (304) is fixedly connected to the top of the telescopic cylinder (302); the positioning rod (305) is slidably connected to the inside of the positioning seat (304), and its rear end also passes through the mounting plate (301).

2. The welding jig for spot welding according to claim 1, characterized in that: The rotating unit comprises a mounting platform (306), a bearing (307), a rotating drum (308), and an electromagnetic coil (309); the mounting platform (306) is fixedly connected to the rear ends of the telescopic rod (303) and the positioning rod (305); the bearing (307) is installed inside the mounting platform (306); the rotating drum (308) is rotatably connected to the inside of the bearing (307); and the electromagnetic coil (309) is installed on the inner wall of the rotating drum (308).

3. The welding jig for spot welding according to claim 2, characterized in that: The clamping unit comprises a fixed block (310), a permanent magnet block (311), a sliding rod (312), and a clamping plate (313); the fixed block (310) is fixedly connected to the inner wall of the electromagnetic coil (309); the permanent magnet block (311) is slidably connected to the inside of the fixed block (310); the sliding rod (312) is fixedly connected to the outer surface of the permanent magnet block (311); and the clamping plate (313) is fixedly connected to the outer end of the sliding rod (312).

4. The welding jig for spot welding according to claim 3, characterized in that: A moving cavity is provided inside the fixed block (310), the permanent magnet block (311) is slidably connected to the inside of the moving cavity, a through hole is provided at the center of the outer surface of the fixed block (310), and the sliding rod (312) is slidably connected to the inside of the through hole.

5. The welding jig for spot welding according to claim 4, characterized in that: There are four groups of clamping units in total, and the four groups of clamping units are fixedly installed on the inner wall of the electromagnetic coil (309) in a ring shape.

6. The welding jig for spot welding according to claim 5, characterized in that: The welding device comprises a welding unit and a rotating unit; The welding unit comprises a lifting cylinder (401), a lifting rod (402), and a spot welding component (403); the lifting cylinder (401) is installed on the top of the spot welding machine (1); the lifting rod (402) is slidably connected to the bottom of the lifting cylinder (401); and the spot welding component (403) is installed on the bottom of the lifting rod (402).

7. The welding jig for spot welding according to claim 6, characterized in that: The rotating unit comprises a base (404), a rotating motor (405), a rotating shaft (406), and a turntable (407); the base (404) is fixedly connected to the rear end of the upper surface of the spot welding table (2); the rotating motor (405) is installed inside the base (404); the rear end of the rotating shaft (406) is connected to the output end of the rotating motor (405); and the turntable (407) is fixedly connected to the front end of the rotating shaft (406).

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