Cantilever electric resistance welding auxiliary rotating device

Abstract

The utility model discloses a cantilever electric resistance welding auxiliary rotating device which comprises a bearing frame used for supporting a metal plate screen cabinet, universal wheels are installed below the bearing frame, a rotating fixing mechanism is arranged in the middle of the bottom face of the bearing frame, and the rotating fixing mechanism comprises a supporting plate, a rotating part and an adjusting part which are sequentially connected from bottom to top. The adjusting part is connected with the middle of the bottom face of the bearing frame and can move downwards relative to the bearing frame to enable the supporting plate to tightly support the ground, the adjusting part supports the bearing frame upwards, the rotating part can enable the bearing frame to rotate relative to the supporting plate, and the rotating axis extends in the vertical direction. All-directional welding is achieved, a product can be efficiently moved in the welding process, a good welding perpendicular angle is formed between the surface of a product workpiece and an electrode holder for cantilever resistance welding, a proper suspension position of a cantilever resistance welding machine is guaranteed, and therefore the welding work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling, and in particular to an auxiliary rotating device for cantilever resistance welding. Background Technology

[0002] Cantilever resistance welding has a wide range of applications in many technical fields. However, due to the limitations of benchtop resistance welding, certain structural products can only be welded using cantilever resistance welding, such as medium and large cabinet structures like sheet metal display cases. To ensure product quality, it is necessary to control the welding perpendicularity angle between the workpiece surface and the cantilever resistance welding clamp, and to ensure a suitable hovering position for the cantilever resistance welding machine.

[0003] However, cantilever resistance welding is mostly used for medium and large cabinet structures. The products are difficult to move during the welding process, and cranes are often used for hoisting and transportation, which greatly affects the welding efficiency. Therefore, stable welding of cantilever resistance welding has always been a difficult problem that needs to be solved in this industry. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary rotating device for cantilever resistance welding, which is supported by a load-bearing frame and has a rotating function, so that the surface of the product workpiece has a good welding vertical angle with the welding clamp of the cantilever resistance welding machine, and provides a suitable hovering position for the cantilever resistance welding machine, thereby improving the welding efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides a cantilever resistance welding auxiliary rotation device, including a support frame for supporting a sheet metal cabinet. Universal wheels are installed below the support frame. A rotation fixing mechanism is provided in the middle of the bottom surface of the support frame. The rotation fixing mechanism includes a support plate, a rotating part, and an adjusting part connected sequentially from bottom to top. The adjusting part is connected to the middle of the bottom surface of the support frame and can move downwards relative to the support frame to make the support plate press firmly against the ground. The adjusting part supports the support frame upwards. The rotating part enables the support frame to rotate relative to the support plate, with the rotation axis extending vertically.

[0006] Preferably, the supporting frame includes a horizontally arranged rectangular base frame, with upwardly extending side frames on both sides of the rectangular base frame. The upper end of the side frames is used to support the sheet metal cabinet, and four casters are installed at the four corners of the rectangular base frame.

[0007] Preferably, the rectangular base frame has two opposing longitudinal beams in the middle, and a crossbeam is provided at the center of the two longitudinal beams, with the center of the crossbeam connected to the adjustment part.

[0008] Preferably, a locking mechanism is provided at the upper end of the side frame.

[0009] Preferably, the caster wheel is equipped with a braking mechanism.

[0010] Preferably, the rotating part is a bearing turntable, which includes an upper plate and a lower plate arranged opposite to each other, with circumferentially arranged balls between the upper plate and the lower plate, the lower plate being fixedly connected to the support plate, and the upper plate being fixedly connected to the adjusting part.

[0011] Preferably, the adjusting part includes a base plate, a vertical adjusting rod, and a horizontal handle. The lower end of the adjusting rod is connected to the center of the base plate, and the upper end of the adjusting rod is connected to the handle. The outer periphery of the adjusting rod is provided with threads, and the bottom surface of the supporting frame is provided with a matching threaded hole, through which the adjusting rod passes.

[0012] Preferably, a rubber pad is provided on the bottom surface of the support plate.

[0013] Preferably, an angle display panel is provided on the base plate.

[0014] Preferably, the upper plate and the lower plate are provided with elongated holes at their four corners, and the bottom plate and the support plate are provided with connecting holes at corresponding positions, and the plates are connected by bolts.

[0015] This utility model provides a cantilever resistance welding auxiliary rotation device, including a support frame for supporting a sheet metal cabinet, universal wheels installed below the support frame, and a rotation fixing mechanism provided in the middle of the bottom surface of the support frame. The rotation fixing mechanism includes a support plate, a rotating part, and an adjusting part connected sequentially from bottom to top. The adjusting part is connected to the middle of the bottom surface of the support frame and can move downward relative to the support frame to make the support plate press against the ground. The adjusting part supports the support frame upward, and the rotating part can make the support frame rotate relative to the support plate, with the rotation axis extending in the vertical direction.

[0016] During use, the sheet metal cabinet to be processed is placed above the support frame. The rotating and fixing mechanism is adjusted so that the rotating and fixing mechanism serves as the rotation axis to form the rotation center, realizing the all-round rotation of the support frame and the sheet metal cabinet, and realizing all-round welding. It can efficiently move the product during the welding process, so that the surface of the product workpiece has a good welding vertical angle with the welding clamp of the cantilever resistance welding machine, ensuring a suitable hovering position of the cantilever resistance welding machine, thereby improving the welding efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of a specific embodiment of the cantilever resistance welding auxiliary rotation device provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating and fixing mechanism in a specific embodiment of the cantilever resistance welding auxiliary rotating device provided by this utility model.

[0019] Figure 3 This is a schematic diagram illustrating the operation of a specific embodiment of the cantilever resistance welding auxiliary rotating device provided by this utility model.

[0020] Among them, the load-bearing frame 1, casters 2, rotating fixing mechanism 3, support plate 31, upper plate 32, lower plate 33, base plate 34, adjusting rod 35, handle 36, rib plate 37, sheet metal cabinet 4, cantilever resistance welding 5. Detailed Implementation

[0021] The core of this utility model is to provide an auxiliary rotating device for cantilever resistance welding. It is supported by a load-bearing frame and has a rotating function, so that the surface of the product workpiece has a good welding vertical angle with the welding clamp of the cantilever resistance welding machine, and provides a suitable hovering position for the cantilever resistance welding machine, thereby improving the welding efficiency.

[0022] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Please refer to Figures 1 to 3 , Figure 1 A schematic diagram of a specific embodiment of the cantilever resistance welding auxiliary rotation device provided by this utility model; Figure 2 This is a schematic diagram of the rotating and fixing mechanism in a specific embodiment of the cantilever resistance welding auxiliary rotating device provided by this utility model. Figure 3 This is a schematic diagram illustrating the operation of a specific embodiment of the cantilever resistance welding auxiliary rotating device provided by this utility model.

[0024] This utility model provides an auxiliary rotating device for cantilever resistance welding, including a support frame 1, casters 2, and a rotating fixing mechanism 3. The support frame 1 supports the sheet metal cabinet 4, providing it with a suitable height for cantilever resistance welding. Casters 2 are installed below the support frame 1, and the rotating fixing mechanism 3 is located in the middle of the bottom surface of the support frame 1. Specifically, the rotating fixing mechanism 3 includes a support plate 31, a rotating part, and an adjusting part connected sequentially from bottom to top. The adjusting part is connected to the middle of the bottom surface of the support frame 1 and can move downward relative to the support frame 1, so that the support plate 31 is pressed against the ground. The adjusting part supports the support frame 1 upward, and the rotating part allows the support frame 1 to rotate relative to the support plate 31, with the rotation axis extending vertically.

[0025] During use, the sheet metal cabinet 4 to be processed is placed above the support frame 1. The rotating fixing mechanism 3 is adjusted so that the rotating fixing mechanism 3 serves as the rotation axis to form the rotation center, realizing the 360-degree omnidirectional rotation of the support frame 1 and the sheet metal cabinet 4, achieving omnidirectional welding. It can efficiently move the product during the welding process, ensuring that the surface of the product workpiece has a good welding vertical angle with the welding clamp of the cantilever resistance welding 5, ensuring a suitable hovering position of the cantilever resistance welding 5, thereby improving the welding efficiency.

[0026] In the cantilever resistance welding auxiliary rotation device provided in this specific embodiment of the utility model, the supporting frame 1 includes a horizontally arranged rectangular base frame, with upwardly extending side frames on both sides of the rectangular base frame. The upper end of the side frames is used to support the sheet metal cabinet 4, and four universal wheels 2 are installed at the four corners of the rectangular base frame. In order to improve the strength of the frame, inclined beams are provided in the side frames, and inclined auxiliary beams can also be provided between the side frames and the rectangular base frame. The beams are connected by welding or by bolts.

[0027] To ensure a stable connection to the adjustment unit, two opposing longitudinal beams are installed in the middle of the rectangular base frame, and a crossbeam is installed at the continuous center of the two longitudinal beams. That is, the longitudinal beams and the crossbeam are arranged in an H-shape, and the center of the crossbeam is connected to the adjustment unit.

[0028] Preferably, a locking mechanism is provided at the upper end of the side frame. The locking mechanism matches the shape of the workpiece to be processed and may also be provided with corresponding positioning holes or positioning protrusions or other connecting mechanisms to ensure that the sheet metal cabinet 4 is stably placed on the upper end of the side frame and to prevent shaking during welding. Furthermore, the sheet metal cabinet 4 and the locking mechanism at the upper end of the side frame are detachably connected for easy workpiece replacement. Different models of locking mechanisms can also be provided, or multiple sets of connecting mechanisms matching different models of workpieces can be provided on the locking mechanism to adapt to different models of workpieces and improve adaptability. A braking mechanism can also be provided on the caster wheel 2.

[0029] Based on the cantilever resistance welding auxiliary rotating device provided in the above specific embodiments, the rotating part is a carrier turntable. The carrier turntable is a conventional component, and a six-inch turntable can be selected. Different sizes and types of rotating parts can also be rotated depending on the situation. The carrier turntable includes an upper plate 32 and a lower plate 33 arranged opposite to each other. Circumferentially arranged ball bearings are provided between the upper plate 32 and the lower plate 33 to realize the function of relative rotation. The lower plate 33 is fixedly connected to the support plate 31, and the upper plate 32 is fixedly connected to the adjustment part.

[0030] Furthermore, the adjustment section includes a base plate 34, a vertical adjustment rod 35, and a horizontal handle 36. The lower end of the adjustment rod 35 is connected to the center of the base plate 34, and the two can be welded together. To improve strength, ribs 37 can be provided between the lower end of the adjustment rod 35 and the base plate 34, with four ribs 37 distributed evenly. The upper end of the adjustment rod 35 is connected to the handle 36, and the two are integrally bent. The outer circumference of the adjustment rod 35 is threaded, and a matching threaded hole is provided in the center of the bottom surface of the bearing frame 1, through which the adjustment rod 35 passes. Specifically, a through hole through which the adjustment rod 35 passes is provided at the center of the crossbeam, and a nut is welded above the through hole. The external thread of the adjustment rod 35 matches the internal thread of the nut.

[0031] During operation, by rotating the handle 36 to adjust the rod 35, the rod 35 rotates relative to the nut, thereby driving the rod 35 and the base plate 34 to move downward. The support plate 31 can support the ground and support the turntable to form the rotation center of the rotating shaft. The multiple casters 2 around it serve as rotating wheels, enabling the device to rotate 360 ​​degrees in all directions. The cantilever resistance welding 5 is fixed in place, assisting sheet metal screen cabinet products in 360-degree all-round welding.

[0032] Preferably, a rubber pad is provided on the bottom surface of the support plate 31 to increase the friction between the support plate 31 and the ground. An angle display dial is provided on the bottom plate 34 to accurately display the rotation angle and improve processing precision. For stable connection, elongated holes are provided at the four corners of the upper plate 32 and the lower plate 33, and connecting holes are provided at corresponding positions on the bottom plate 34 and the support plate 31. The plates are locked together by bolts and nuts. Other connection methods, such as snap-fit ​​or welding, can also be used, all of which are within the protection scope of this utility model.

[0033] In another specific embodiment, the adjustment unit includes a base plate 34 and a jack structure. The lower end of the jack structure is connected to the base plate 34, and the upper end of the jack structure is connected to a crossbeam. During operation, by turning the lever of the jack structure, the jack structure extends and lifts, thereby driving the base plate 34 to move downward. The support plate 31 can support the ground firmly, and the rotating turntable forms the rotation center of the rotating shaft. The multiple universal wheels 2 around it serve as rotating wheels, enabling the device to achieve 360-degree omnidirectional rotation. The cantilever resistance welding 5 remains stationary, assisting in the 360-degree omnidirectional welding of sheet metal cabinet products.

[0034] In another specific embodiment, the adjustment unit includes a base plate 34 and a telescopic cylinder structure, which can be a hydraulic cylinder or an electric cylinder, etc. A corresponding power device and control device are provided for the counterweight. The lower end of the telescopic cylinder structure is connected to the base plate 34, and the upper end is connected to a crossbeam. During operation, the telescopic cylinder structure extends and lifts up through hydraulic or electric control, thereby driving the base plate 34 to move downwards. The support plate 31 can firmly support the ground, and the rotating turntable forms the rotation center of the rotating shaft. Multiple casters 2 around it act as rotating wheels, allowing the device to rotate 360 ​​degrees in all directions. The cantilever resistance welding 5 remains stationary, assisting in the 360-degree welding of sheet metal cabinet products.

[0035] The above provides a detailed description of the cantilever resistance welding auxiliary rotating device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A cantilever resistance welding auxiliary rotating device characterized by, The system includes a support frame (1) for supporting the sheet metal cabinet (4), with casters (2) installed below the support frame (1). A rotating fixing mechanism (3) is provided in the middle of the bottom surface of the support frame (1). The rotating fixing mechanism (3) includes a support plate (31), a rotating part and an adjusting part connected from bottom to top. The adjusting part is connected to the middle of the bottom surface of the support frame (1) and can move downward relative to the support frame (1) so that the support plate (31) is pressed against the ground. The adjusting part supports the support frame (1) upward. The rotating part can make the support frame (1) rotate relative to the support plate (31), and the rotation axis extends in the vertical direction.

2. The cantilever resistance welding auxiliary rotating device according to claim 1, characterized in that, The supporting frame (1) includes a horizontally arranged rectangular base frame, and side frames extending upward on both sides of the rectangular base frame. The upper end of the side frames is used to support the sheet metal screen cabinet (4), and four casters (2) are installed at the four corners of the rectangular base frame.

3. The cantilever resistance welding auxiliary rotating device according to claim 2, wherein, The rectangular base frame has two opposing longitudinal beams in the middle, and a crossbeam is set at the center of the two longitudinal beams. The center of the crossbeam is connected to the adjustment part.

4. The cantilever resistance welding auxiliary rotating device according to claim 3, characterized in that, A locking mechanism is provided at the upper end of the side frame.

5. The cantilever resistance welding auxiliary rotating device of claim 1, wherein, The universal wheel (2) is equipped with a braking mechanism.

6. The cantilever resistance welding auxiliary rotating device according to any one of claims 1 to 5, characterized in that, The rotating part is a bearing turntable, which includes an upper plate (32) and a lower plate (33) arranged opposite to each other. Circumferentially arranged balls are provided between the upper plate (32) and the lower plate (33). The lower plate (33) is fixedly connected to the support plate (31), and the upper plate (32) is fixedly connected to the adjusting part.

7. The cantilever resistance welding auxiliary rotating device according to claim 6, wherein, The adjustment part includes a base plate (34), a vertical adjustment rod (35) and a horizontal handle (36). The lower end of the adjustment rod (35) is connected to the center of the base plate (34), and the upper end of the adjustment rod (35) is connected to the handle (36). The outer periphery of the adjustment rod (35) is provided with threads, and the bottom surface of the bearing frame (1) is provided with a matching threaded hole. The adjustment rod (35) passes through the threaded hole.

8. The cantilever resistance welding auxiliary rotating device according to claim 7, wherein, A rubber pad is provided on the bottom surface of the support plate (31).

9. The cantilever resistance welding auxiliary rotating device of claim 8, wherein, An angle display disc is provided on the base plate (34).

10. The cantilever resistance welding auxiliary rotating device according to claim 9, wherein, The upper plate (32) and the lower plate (33) are provided with elongated holes at their four corners, and the bottom plate (34) and the support plate (31) are provided with connecting holes at corresponding positions. The plates are connected by bolts.

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