A welding fixture for an air filter bracket assembly

Abstract

This invention discloses a welding fixture for an air filter bracket assembly, relating to the field of welding equipment manufacturing technology. It includes a base plate, with a connector A fixedly connected to the outer wall of the base plate and a connector B fixedly connected to the top of the base plate. An electric telescopic mechanism is fixedly connected between connector A and connector B. A clamping fixture mechanism is provided on the top of the base plate. By setting up the clamping fixture mechanism, when the operator operates the electric telescopic mechanism, three push plates can be quickly and synchronously moved towards the center to automatically clamp and secure the air filter. The hinged downward clamping method also applies a downward force to the air filter, causing it to press against the bearing on the base plate. This results in greater friction between the air filter and the bearing, preventing vibration and displacement of the air filter during subsequent welding of the junction between the air filter and the bracket.

Description

Technical Field

[0001] This invention relates to the field of welding equipment manufacturing technology, specifically to a welding fixture for an air filter bracket assembly. Background Technology

[0002] Welding, also known as fusion welding or melting, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure.

[0003] A welding fixture for an air filter bracket assembly, disclosed in patent application CN112338381A, relates to the field of welding equipment manufacturing technology. It includes a workbench with two fixed plates above it and a connecting plate fixedly connected between them. A duct runs through one of the fixed plates, and a suction fan is bolted to the inside of the duct. An adjusting rod and an electric push rod are located below the connecting plate, with the electric push rod positioned to one side of the adjusting rod. A welding gun is located below the electric push rod, and a locking block is located below the adjusting rod. An air duct is engaged with the locking block, and the air duct is fixedly connected to the duct. A rotating rod is located inside the workbench.

[0004] Currently, when welding air filters to brackets, workers typically use a welding torch to perform a rotating circular welding between the annular air filter and the annular bracket. However, this welding method requires workers to rotate their arms to achieve the circular welding, which can lead to uneven force application at the welding point and result in unstable welding. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding fixture for an air filter bracket assembly, thereby solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a welding fixture for an air filter bracket assembly, including a base plate, a connector A fixedly connected to the outer wall of the base plate, a connector B fixedly connected to the top of the base plate, an electric telescopic mechanism fixedly connected between connector A and connector B, and a clamping fixture mechanism provided on the top of the base plate.

[0007] The clamping fixture mechanism includes:

[0008] Rotating ball A, which is a spherical structure, has a threaded rod fixedly connected to the output end of the connector B, and a fixed sleeve is threadedly connected to the outer wall of the threaded rod. The inner wall of the fixed sleeve is rotatably connected to the outer wall of the rotating ball A. A connecting rod is fixedly connected to the outer wall of the rotating ball A, and a rotating ball B is fixedly connected to one end of the connecting rod. The rotating ball A is used to enable the connecting rod to rotate hingedly.

[0009] The push plate is a rectangular plate structure. A hinge block is hinged to the bottom of the push plate. The bottom of the hinge block is fixedly connected to the top of the base plate. A bearing is fixedly connected to the top of the base plate. An air filter is placed on the top of the bearing. A bracket is provided on the top of the air filter. The push plate is used to clamp and fix the air filter.

[0010] Preferably, a first fixing plate is fixedly connected to both sides of the push plate, a rotating sleeve is rotatably connected to the outer wall of the first fixing plate, and a telescopic rod is fixedly connected to the inner wall of the rotating sleeve.

[0011] Preferably, both ends of the telescopic rod are fixedly connected to the inner walls of the left and right rotating sleeves, and a pad is fixedly connected to one side of the push plate.

[0012] Preferably, a roller A is rotatably connected to the inner wall of the pad, and the roller A is made of rubber and has elasticity.

[0013] Preferably, the outer wall of the push plate is provided with a bottom clamping mechanism, the bottom clamping mechanism includes a second fixing plate, the top of the push plate is fixedly connected to the second fixing plate, and a laser light is fixedly connected to one side of the second fixing plate.

[0014] Preferably, a hinged telescopic rod is hinged to one side of the push plate, a push block is hinged to one end of the hinged telescopic rod, and a slider is fixedly connected to the bottom of the push block.

[0015] Preferably, the top of the base plate is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the outer wall of the slider.

[0016] Preferably, a pressure plate is fixedly connected to one side of the slider, and a roller B is rotatably connected to the inner wall of the pressure plate. The roller B is made of rubber and has elasticity.

[0017] This invention provides a welding fixture for an air filter bracket assembly, which has the following advantages:

[0018] 1. This invention, by setting up a clamping tooling mechanism, allows the three push plates to be quickly and synchronously moved towards the center when the operator operates the electric telescopic machine, automatically clamping and securing the air filter. The hinged downward clamping method also applies a downward force to the air filter, causing the air filter to press against the bearing on the base plate. This results in greater friction between the air filter and the bearing, preventing the air filter from vibrating and shifting when the operator welds the junction between the air filter and the bracket.

[0019] 2. This invention, by setting up a clamping fixture mechanism, quickly centers and fixes the air filter, eliminating the need for manual calibration to ensure the air filter is aligned with the bearing. This improves work efficiency and simplifies the operation. Furthermore, during subsequent fixing, the bearing and air filter are located at the same center, allowing for more convenient welding operations by rotating the air filter. There is no need for manual operation of the welding torch to rotate the arm and weld the gap between the annular air filter and the support; simply maintaining a stable welding torch head and rotating the air filter automatically completes the stable welding process, ensuring uniform weld seams, improving welding quality, and reducing the workload of workers.

[0020] 3. By setting up a clamping tooling mechanism, the present invention can maintain stable clamping and pressing of the air filter towards the center and downward, while also allowing the air filter to rotate stably between the bearing and the three push plates. By freely rotating the air filter, it is possible to observe the air filter from different positions and take different welding processing measures, which facilitates welding and pre-welding cleaning.

[0021] 4. By setting up a bottom clamping mechanism, when the three push plates clamp the air filter, the distance between the three second fixing plates on the three push plates and the air filter and the bracket can be observed to quickly determine the center position of the bracket to be welded on the air filter. When the position of the bracket is consistent with the position of the three second fixing plates, the bracket and the air filter are at the same center, which makes it easier for the staff to calibrate the position when the bracket and the air filter need to be welded to the same center position.

[0022] 5. This invention, by setting a bottom clamping mechanism, forms a uniformly distributed ring array of laser points on the top of the air filter. The placement of the bracket can be referenced to these points. After the bracket is placed on the air filter, it can be observed whether the laser irradiation points at the three positions also form a ring array on the bracket. This allows it to be determined whether the bracket, air filter, and bearing are on the same center. This achieves a more efficient and faster calibration for welding with the bracket on the same center, avoiding the problem of incorrect position after welding due to non-alignment. It also avoids the problem of uneven weld seams caused by inconsistent distance between the welding head and the welding area when the bearing drives the air filter to rotate, which would affect the welding quality of the air filter and the bracket.

[0023] 6. This invention, by setting a bottom clamping mechanism, when the push plate rotates and descends through the hinged extension rod, pushes the push block, causing the slider to slide in the groove, thereby clamping the pressure plate and roller B to the bottom of the air filter. The roller B keeps the air filter free to rotate, and the elastic force of the spring built into the hinged extension rod tightly pushes the air filter, keeping the air filter firmly clamped. This achieves the characteristic that the middle part of the air filter cannot be clamped because the filter material cannot be clamped. By clamping the upper and lower parts of the air filter, the stability of the air filter clamping is achieved. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the clamping tooling mechanism of the present invention. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the disassembled structure of the clamping tooling mechanism of the present invention;

[0027] Figure 4 This is a schematic diagram of the clamping tooling mechanism of the present invention. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the clamping tooling mechanism of the present invention. Figure 3 ;

[0029] Figure 6 This is a schematic diagram of the clamping tooling mechanism of the present invention. Figure 4 ;

[0030] Figure 7 This is a schematic diagram of the structure of roller A in the clamping tooling mechanism of the present invention;

[0031] Figure 8 The motion state of the clamping tooling mechanism of the present invention Figure 1 ;

[0032] Figure 9 The motion state of the clamping tooling mechanism of the present invention Figure 2 ;

[0033] Figure 10 For the present invention Figure 1 Enlarged view of point A;

[0034] Figure 11 This is a schematic diagram of the bottom clamping mechanism of the present invention. Figure 1 ;

[0035] Figure 12 This is a schematic diagram of the bottom clamping mechanism of the present invention. Figure 2 .

[0036] In the diagram: 1 Connector A, 2 Base plate, 3 Clamping tooling mechanism, 301 Rotating ball A, 302 Connecting rod, 303 Rotating ball B, 304 Push plate, 305 Hinge block, 306 First fixed plate, 307 Rotating sleeve, 308 Telescopic rod, 309 Pad plate, 310 Roller A, 311 Bearing, 4 Bottom clamping mechanism, 401 Second fixed plate, 402 Laser light, 403 Hinge telescopic rod, 404 Push block, 405 Slide groove, 406 Slider, 407 Pressure plate, 408 Roller B, 5 Electric telescopic mechanism, 6 Connector B, 7 Threaded rod, 8 Air filter, 9 Bracket, 10 Fixed sleeve. Detailed Implementation

[0037] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a welding fixture for an air filter bracket assembly, including a base plate 2, a connector A1 fixedly connected to the outer wall of the base plate 2, a connector B6 fixedly connected to the top of the base plate 2, an electric telescopic mechanism 5 fixedly connected between the connector A1 and the connector B6, and a clamping fixture mechanism 3 provided on the top of the base plate 2.

[0038] The clamping tooling mechanism 3 includes:

[0039] Rotating ball A301 has a spherical structure. The output end of connector B6 is fixedly connected to a threaded rod 7. The outer wall of the threaded rod 7 is threadedly connected to a fixing sleeve 10. The inner wall of the fixing sleeve 10 is rotatably connected to the outer wall of rotating ball A301. A connecting rod 302 is fixedly connected to the outer wall of rotating ball A301. One end of the connecting rod 302 is fixedly connected to rotating ball B303. Rotating ball A301 is used to enable the connecting rod 302 to rotate hingedly.

[0040] Push plate 304 is a rectangular plate structure. A hinge block 305 is hinged to the bottom of push plate 304. The bottom of hinge block 305 is fixedly connected to the top of base plate 2. A bearing 311 is fixedly connected to the top of base plate 2. An air filter 8 is placed on the top of bearing 311. A bracket 9 is provided on the top of air filter 8. Push plate 304 is used to clamp and fix air filter 8.

[0041] In use, place the air filter 8 and bracket 9 on the bearing 311 on the base plate 2. Position the air filter 8 and bracket 9 according to the circular shape of the bearing 311 and the base plate 2, so that the air filter 8 and bracket 9 are aligned. It can be conveniently placed in the center of the base plate 2. Then, the electric telescopic mechanism 5 is started to control the threaded rod 7 to extend and retract. After the threaded rod 7 extends, it pushes the rotating ball A301. The rotating ball A301 simultaneously pushes the connecting rod 302 to the rotating ball B303. The rotating ball B303 then pushes the push plate 304 and rotates on the inner wall of the push plate 304. When the push plate 304 is pushed, it opens and closes under the hinge of the hinge block 305, so that the push plate 304 naturally closes and rests on the air filter 8. At the same time as the push plate 304 closes, it will drive the rotating sleeve 307 and the telescopic rod 308 to move synchronously through the first fixed plate 306. There are three telescopic rods 308 between the three push plates 304. The two ends of the telescopic rods 308 can rotate relative to each other on the first fixed plate 306 through the rotating sleeve 307. Therefore, when the first fixed plate 306 and the push plate 304 are hinged and rotated downwards, they press down. When the air filter 8 is lowered, the telescopic rod 308 will descend synchronously. The other two push plates 304 are limited by the hinge block 305, which restricts their rotational hinge direction. Therefore, when the telescopic rod 308 descends, it will drive the other two first fixed plates 306 and push plates 304 to rotate downwards synchronously. The telescopic rod 308 itself will begin to retract and shorten. Thus, when the operator operates the electric telescopic machine 5, the three push plates 304 can be quickly moved towards the middle synchronously to automatically clamp and secure the air filter 8. The hinged downward clamping method will also apply a downward component force to the air filter 8, so that the air filter 8 will press against the bearing 311 on the base plate 2, so that there is a large friction between the air filter 8 and the bearing 311. This will prevent the air filter 8 from vibrating and shifting when the operator welds the junction between the air filter 8 and the bracket 9.

[0042] Example 2: Please refer to Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution: a first fixing plate 306 is fixedly connected to both sides of the push plate 304, a rotating sleeve 307 is rotatably connected to the outer wall of the first fixing plate 306, and a telescopic rod 308 is fixedly connected to the inner wall of the rotating sleeve 307.

[0043] The telescopic rod 308 is fixedly connected at both ends to the inner walls of the two rotating sleeves 307 on the left and right, and a pad 309 is fixedly connected to one side of the push plate 304.

[0044] The inner wall of the pad 309 is rotatably connected to a roller A310, which is made of rubber and is elastic.

[0045] The three push plates 304 simultaneously move and clamp the air filter 8, automatically positioning it at the center of the bearing 311. This quickly and centrally fixes the air filter 8 without requiring manual calibration to align it with the bearing 311, improving work efficiency and simplifying the process. Furthermore, when the air filter 8 is securely fixed, the bearing 311 and the air filter 8 are at the same center, allowing for more convenient welding by rotating the air filter 8. There's no need for manual operation of the welding torch to weld the gap between the annular air filter 8 and the bracket 9; simply maintaining a stable welding torch head and rotating the air filter 8 automatically completes the welding process, ensuring uniform weld seams, improving welding quality, and reducing the workload of the workers.

[0046] When the air filter 8 rotates, its bottom is pressed against the bearing 311, and it rotates on the base plate 2 via the bearing 311. The side of the push plate 304 is pressed against the air filter 8 by the roller A310 on the pad plate 309. The roller A310 can roll, thus maintaining a stable clamping and pressing of the air filter 8 towards the center and downward. At the same time, it can also make the air filter 8 rotate stably between the bearing 311 and the three push plates 304. By freely rotating the air filter 8, different positions of the air filter 8 can be observed and different welding processing measures can be taken, which is convenient for welding and cleaning before welding.

[0047] Example 3: Please refer to Figure 1-12 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: a bottom clamping mechanism 4 is provided on the outer wall of the push plate 304, the bottom clamping mechanism 4 includes a second fixing plate 401, the top of the push plate 304 is fixedly connected to the second fixing plate 401, and a laser lamp 402 is fixedly connected to one side of the second fixing plate 401.

[0048] A hinged telescopic rod 403 is hinged to one side of the push plate 304, and a push block 404 is hinged to one end of the telescopic rod 403. A slider 406 is fixedly connected to the bottom of the push block 404.

[0049] The top of the base plate 2 is provided with a sliding groove 405, and the inner wall of the sliding groove 405 is slidably connected to the outer wall of the slider 406.

[0050] A pressure plate 407 is fixedly connected to one side of the slider 406. A roller B408 is rotatably connected to the inner wall of the pressure plate 407. The roller B408 is made of rubber and is elastic.

[0051] When the three push plates 304 clamp the air filter 8, the distance between the three second fixing plates 401 on the three push plates 304 and the air filter 8 and the bracket 9 can be observed to quickly determine the center position of the bracket 9 to be welded on the air filter 8. When the position of the bracket 9 is consistent with the position of the three second fixing plates 401, then the bracket 9 and the air filter 8 are at the same center, which makes it easier for the staff to calibrate the position when the bracket 9 and the air filter 8 need to be welded to the same center position.

[0052] When the three push plates 304 approach each other and clamp the air filter 8, the second fixing plate 401 and the laser lamp 402 above the push plates 304 are also tilted. The low-energy laser beams emitted by the several laser lamps 402 on the second fixing plate 401, along with the tilted state of the three push plates 304 and the second fixing plate 401, will simultaneously emit laser beams towards the top of the air filter 8, thus forming a uniformly distributed ring array of laser points on the top of the air filter 8. The placement of the bracket 9 can be referenced to these points. When the bracket 9 is placed on the air filter... After the filter 8 is installed, observe whether the laser irradiation points at the three positions are also distributed in a ring array on the bracket 9. This will determine whether the bracket 9, the air filter 8, and the bearing 311 are on the same center. This will enable more efficient and faster calibration of the welding to be placed on the same center, avoiding the problem of incorrect position after welding due to non-alignment. It will also prevent the distance between the welding head and the welding area from fluctuating when the bearing 311 drives the air filter 8 to rotate, which would lead to uneven weld seams and affect the welding quality of the air filter 8 and the bracket 9.

[0053] When the push plate 304 rotates and descends, it pushes the push block 404 through the hinge telescopic rod 403, causing the slider 406 to slide in the slide groove 405. This clamps the pressure plate 407 and the roller B408 to the bottom of the air filter 8. The roller B408 keeps the air filter 8 free to rotate, while the spring force built into the hinge telescopic rod 403 tightly pushes the air filter 8, keeping it firmly clamped. This adapts to the characteristic that the middle part of the air filter 8 cannot be clamped because it is made of filter material. By clamping the upper and lower parts of the air filter 8, the stability of the air filter 8 is achieved.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding fixture for an air filter support assembly, comprising a base plate (2), wherein a connector A (1) is fixedly connected to the outer wall of the base plate (2), and a connector B (6) is fixedly connected to the top of the base plate (2), wherein an electric telescopic mechanism (5) is fixedly connected between the connector A (1) and the connector B (6), characterized in that: The bottom plate (2) is provided with a clamping tooling mechanism (3) on its top. The clamping tooling mechanism (3) includes: Rotating ball A (301), the rotating ball A (301) is a spherical structure, the output end of the connector B (6) is fixedly connected to a threaded rod (7), the outer wall of the threaded rod (7) is threadedly connected to a fixing sleeve (10), the inner wall of the fixing sleeve (10) is rotatably connected to the outer wall of the rotating ball A (301), the outer wall of the rotating ball A (301) is fixedly connected to a connecting rod (302), one end of the connecting rod (302) is fixedly connected to a rotating ball B (303), the rotating ball A (301) is used to enable the connecting rod (302) to rotate hingedly; Push plate (304), the push plate (304) is a rectangular plate structure, the bottom of the push plate (304) is hinged with a hinge block (305), the bottom of the hinge block (305) is fixedly connected to the top of the base plate (2), the top of the base plate (2) is fixedly connected with a bearing (311), the top of the bearing (311) is placed with an air filter (8), the top of the air filter (8) is provided with a bracket (9), the push plate (304) is used to clamp and fix the air filter (8); The push plate (304) is fixedly connected to two sides of a first fixing plate (306). A rotating sleeve (307) is rotatably connected to the outer wall of the first fixing plate (306). A telescopic rod (308) is fixedly connected to the inner wall of the rotating sleeve (307). The two ends of the telescopic rod (308) are fixedly connected to the inner walls of the left and right rotating sleeves (307). A pad (309) is fixedly connected to one side of the push plate (304). A roller A (310) is rotatably connected to the inner wall of the pad (309). The roller A (310) is made of rubber and has elasticity. The outer wall of the push plate (304) is provided with a bottom clamping mechanism (4). The bottom clamping mechanism (4) includes a second fixed plate (401). The top of the push plate (304) is fixedly connected to the second fixed plate (401). A laser lamp (402) is fixedly connected to one side of the second fixed plate (401). A hinged telescopic rod (403) is hinged to one side of the push plate (304). A push block (404) is hinged to one end of the hinged telescopic rod (403). A slider (406) is fixedly connected to the bottom of the push block (404). A pressure plate (407) is fixedly connected to one side of the slider (406). A roller B (408) is rotatably connected to the inner wall of the pressure plate (407). The roller B (408) is made of rubber and has elasticity.

2. The welding fixture for an air filter bracket assembly according to claim 1, characterized in that: The bottom plate (2) has a groove (405) on its top, and the inner wall of the groove (405) is slidably connected to the outer wall of the slider (406).

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