Spot welding equipment for power distribution cabinet production and method thereof

Abstract

The invention relates to the technical field of spot welding, in particular to spot welding equipment for power distribution cabinet production and a method thereof.The spot welding equipment comprises a spot welding mechanism, the spot welding mechanism comprises a spot welding frame, electric telescopic rods are fixedly connected to the rear sides of the top and the bottom of the inner wall of the spot welding frame, and the output ends of the electric telescopic rods are fixedly connected with spot welding bases; a spot welding head used for spot welding is fixedly connected to the inner side of the spot welding seat, and plate supporting seats are fixedly connected to the two sides of the rear side of the inner wall of the spot welding frame; the self-locking mechanism comprises two mounting seats, the rear sides of the inner sides of the mounting seats are fixedly connected with the two sides of the spot welding frame, clamping plates are slidably connected to the interiors of the mounting seats, the spot welding mechanism is started for welding, and meanwhile the self-locking mechanism is driven to clamp and lock a plate. In the welding process of the spot welding mechanism, the air exhaust mechanism is started to exhaust welding fume, and the self-locking mechanism is driven to be closed after the spot welding mechanism stops welding.

Description

Technical Field

[0001] The present invention relates to the technical field of spot welding, and particularly relates to a spot welding device and method for the production of distribution cabinets. Background Art

[0002] The distribution box body generally consists of the following parts: box body shell, door, mounting plate, wire inlet and outlet, grounding bar, and guide rail. The box body shell of the distribution box is made of metal sheet. During the production process, spot welding is a commonly used welding method. For example, for a box body made of cold-rolled steel sheet, spot welding can firmly connect the various components of the box body (such as the four walls and the bottom). During the welding process, the electrode applies pressure to the metal sheet and conducts electricity, generating resistance heat to locally melt the metal and form a solder joint, thereby tightly connecting the sheets. This welding method can ensure the sealing performance and structural strength of the box body.

[0003] When using a spot welding device to weld and produce the distribution box body, it is necessary for the user to place two thin sheets and then manually use a fixture for clamping and positioning before subsequent welding can be carried out, resulting in a decrease in the overall welding efficiency. At the same time, welding fumes will be generated during the process of spot welding the thin sheets. These welding fumes contain many harmful substances and are easily inhaled by the user into the lungs, thus causing harm to the user's body. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing spot welding devices for the production of distribution cabinets, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a spot welding device for the production of distribution cabinets, which aims to: facilitate the positioning of the plates and purify the welding fumes.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: including a spot welding mechanism, which includes a spot welding frame. At the rear sides of the top and bottom of the inner wall of the spot welding frame, electric telescopic rods are fixedly connected. The output ends of the electric telescopic rods are fixedly connected with spot welding seats. Inside the spot welding seats, spot welding heads for spot welding are fixedly connected. On both sides of the rear side of the inner wall of the spot welding frame, sheet support seats are fixedly connected; a self-locking mechanism, which includes mounting seats. There are two mounting seats. The rear sides inside the mounting seats are fixedly connected with the two sides of the spot welding frame. Inside the mounting seats, clamping plates are slidably connected. At the top of the clamping plates, first inclined blocks are fixedly connected. The tops of the first inclined blocks penetrate through the tops of the mounting seats and are slidably connected with the mounting seats. On the tops of the first inclined blocks, second inclined blocks are slidably connected. At the top of the second inclined blocks, transmission parts are fixedly connected. The inner tops of the transmission parts are fixedly connected with the bottoms of both sides of the upper spot welding seats. On both sides of the outside of the clamping plates, tension springs are fixedly connected. The other ends of the tension springs are fixedly connected with both sides of the outside of the inner wall of the mounting seats. At the bottom of the outside of the clamping plates, limit components are fixedly connected; and an air extraction mechanism, which includes an air extraction pump. The back of the air extraction pump is fixedly connected with the bottom of the right side of the rear side of the inner wall of the spot welding frame. At the bottom of the back of the spot welding frame, an activated carbon filter is fixedly connected. The bottom of the activated carbon filter is communicated with the air inlet end of the air extraction pump. The top of the activated carbon filter is communicated with an air extraction main pipe. On the left side of the air extraction main pipe, two air extraction branch pipes are communicated. Inside the spot welding seats, smoke gathering covers are fixedly connected. The smoke gathering covers are sleeved on the surfaces of the spot welding heads. The backs of the smoke gathering covers are communicated with the air extraction branch pipes. At the rear side of the inner wall of the spot welding frame, a welding point cooling component is fixedly connected. On both sides of the rear side of the inner wall of the spot welding frame, local temperature reduction components are fixedly connected.

[0008] As a preferred solution of the spot welding equipment for power distribution cabinet production according to the present invention, among them: the limit component includes a limit rod. The inner side of the limit rod is fixedly connected with the bottom of the outside of the clamping plate. The cross-section of the limit rod is cross-shaped. At the bottom of the outside of the mounting seat, a cross-shaped limit groove is opened. The inner wall of the cross-shaped limit groove is slidably connected with the surface of the limit rod.

[0009] As a preferred solution of the spot welding equipment for power distribution cabinet production according to the present invention, among them: the welding point cooling component includes a first air guiding seat. The back of the first air guiding seat is fixedly connected with the rear side of the inner wall of the spot welding frame. At the bottom of the first air guiding seat, a first air inlet hole is opened. The first air guiding seat is communicated with an air inlet main pipe through the first air inlet hole. The end of the air inlet main pipe far from the first air guiding seat is communicated with the air outlet end of the air extraction pump.

[0010] As a preferred solution of the spot welding device for the production of the power distribution cabinet described in the present invention, wherein: the local cooling component includes a second air guide seat, the back surface of the second air guide seat is fixedly connected to both sides of the rear side of the inner wall of the spot welding frame, a second air inlet hole is opened at the rear side of the bottom of the second air guide seat, the second air guide seat is communicated with an air inlet branch pipe through the second air inlet hole, one end of the air inlet branch pipe away from the second air guide seat is communicated with the air inlet main pipe, and sealing components are movably embedded on both sides of the inner wall of the first air guide seat.

[0011] As a preferred solution of the spot welding device for the production of the power distribution cabinet described in the present invention, wherein: the sealing component includes a first seal, the first seal is movably embedded on both sides of the inner wall of the first air guide seat, connecting plates are fixedly connected to the front side and the rear side of the outer side of the first seal, a second seal is movably embedded on the inner side of the inner wall of the second air guide seat, the second seal covers the top of the second air inlet hole, a pull rod is fixedly connected to the top of the outer side of the second seal, the outer side of the pull rod penetrates into the interior of the mounting seat and is fixedly connected to the rear side of the inner bottom of the clamping plate, an activity groove is opened on the inner side of the top of the plate support seat, the inner wall of the activity groove is slidably connected to the surface of the connecting plate, and the outer side of the connecting plate is fixedly connected to the inner side of the second seal.

[0012] As a preferred solution of the spot welding device for the production of the power distribution cabinet described in the present invention, wherein: a limiting disk is fixedly connected to the outer side of the limiting rod, and the diameter of the limiting disk is larger than the diameter of the inner wall of the cross-shaped limiting groove.

[0013] As a preferred solution of the spot welding device for the production of the power distribution cabinet described in the present invention, wherein: limiting seats are fixedly connected to the inner sides of the front side and the rear side of the inner wall of the activity groove, the inner walls of the limiting seats are slidably connected to the surface of the connecting plate, and the plate support seat is arranged in a C shape.

[0014] As a preferred solution of the spot welding device for the production of the power distribution cabinet described in the present invention, wherein: two anti-blocking grooves are opened on the rear side of the inner wall of the spot welding frame, the surface of the air extraction branch pipe is slidably connected to the inner wall of the anti-blocking groove, and the air extraction branch pipe is made of rubber.

[0015] The beneficial effects of the present invention: Start the spot welding mechanism for welding, and at the same time drive the self-locking mechanism to clamp and lock the plate. During the welding process of the spot welding mechanism, start the air extraction mechanism to extract the welding fumes, and after the spot welding mechanism stops welding, it will drive the self-locking mechanism to close.

[0016] In view of the problems existing in the existing spot welding devices for the production of power distribution cabinets, the present invention is proposed.

[0017] Therefore, the object of the present invention is to provide a spot welding method for a spot welding device used in the production of distribution cabinets, aiming to: automatically position the plates and extract welding fumes.

[0018] To solve the above technical problems, the present invention provides the following technical solutions: including, Start the spot welding mechanism for welding, and at the same time drive the self-locking mechanism to clamp and lock the plates; During the welding process of the spot welding mechanism, start the air extraction mechanism to extract the welding fumes; After the spot welding mechanism stops welding, it will drive the self-locking mechanism to close.

[0019] As a preferred solution of the spot welding method for the spot welding device used in the production of distribution cabinets of the present invention, it includes: Start the spot welding mechanism to weld two placed plates, and at the same time drive the self-locking mechanism to clamp and lock the placed plates; During the welding process of the spot welding mechanism, start the air extraction mechanism to extract and filter the welding fumes generated when welding the two plates; After the workpiece is spot welded, turn off the spot welding mechanism to stop welding. At the same time, it will drive the self-locking mechanism to close, cancel the clamping and locking of the plates, and the wind blown by the air extraction mechanism can blow towards the welding area for cooling.

[0020] The beneficial effects of the present invention: Start the spot welding mechanism to weld two placed plates, and at the same time drive the self-locking mechanism to clamp and lock the placed plates. During the welding process of the spot welding mechanism, start the air extraction mechanism to extract and filter the welding fumes generated when welding the two plates. After the workpiece is spot welded, turn off the spot welding mechanism to stop welding. At the same time, it will drive the self-locking mechanism to close, cancel the clamping and locking of the plates, and the wind blown by the air extraction mechanism can blow towards the welding area for cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them: Figure 1 It is the overall structural schematic diagram provided by the present invention.

[0022] Figure 2 It is the three-dimensional structural schematic diagram of the spot welding frame provided by the present invention.

[0023] Figure 3 It is the three-dimensional structural schematic diagram of the spot welding seat provided by the present invention.

[0024] Figure 4Schematic three-dimensional structure diagram of the mounting base provided by the present invention.

[0025] Figure 5 Exploded view of the parts of the mounting base provided by the present invention.

[0026] Figure 6 Schematic three-dimensional structure diagram of the plate support base provided by the present invention.

[0027] Figure 7 Schematic three-dimensional structure diagram of the second air guide base provided by the present invention.

[0028] Figure 8 Provided by the present invention Figure 6 Enlarged structure diagram at position A in

[0029] Figure 9 Schematic three-dimensional structure diagram of the first inclined block provided by the present invention. Detailed implementation manners

[0030] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the drawings of the specification.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0032] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0033] Furthermore, the present invention is described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0034] Embodiment 1 Referring to Figures 1 to 9 , which is the first embodiment of the present invention, a spot welding method for a spot welding device used in the production of power distribution cabinets is provided, realizing automatic locking or loosening and extraction of welding fumes.

[0035] Start the spot welding mechanism 100 to weld the two placed plates, and at the same time drive the self-locking mechanism 200 to clamp and lock the placed plates, so as to avoid the extra manual clamping and positioning actions before spot welding the plates, thereby reducing the welding efficiency; During the welding process of the spot welding mechanism 100, start the air extraction mechanism 300 to extract and filter the welding fumes generated when welding the two plates, so as to avoid the welding fumes generated during welding from being inhaled by the user and causing harm to the user's body; After the workpiece is spot welded, turn off the spot welding mechanism 100 to stop welding, and at the same time drive the self-locking mechanism 200 to close, cancel the clamping and locking of the plates, so as to avoid the extra manual loosening of the plate positioning actions after the plates are spot welded, thereby reducing the welding efficiency. And the wind blown by the air extraction mechanism 300 can blow towards the welding area for cooling, improving the welding firmness and the welding efficiency.

[0036] Embodiment 2 Refer to Figures 1 to 5 , 9, which is the second embodiment of the present invention, provides a spot welding mechanism 100 and a self-locking mechanism 200 to realize automatic clamping and locking of plates during spot welding.

[0037] The spot welding mechanism 100 includes a spot welding frame 101. The rear sides of the top and bottom of the inner wall of the spot welding frame 101 are fixedly connected with electric telescopic rods 102. The output ends of the electric telescopic rods 102 are fixedly connected with spot welding seats 103. The inner side of the spot welding seat 103 is fixedly connected with a spot welding head 104 for spot welding. The two sides of the rear side of the inner wall of the spot welding frame 101 are fixedly connected with plate support seats 105.

[0038] The self-locking mechanism 200 includes two mounting seats 201. The rear sides of the inner sides of the mounting seats 201 are fixedly connected with the two sides of the spot welding frame 101. A clamping plate 202 is slidably connected inside the mounting seat 201. The top of the clamping plate 202 is fixedly connected with a first inclined block 203. The top of the first inclined block 203 penetrates to the top of the mounting seat 201 and is slidably connected with the mounting seat 201. A second inclined block 204 is slidably connected to the top of the first inclined block 203. The top of the second inclined block 204 is fixedly connected with a transmission member 205. The inner top of the transmission member 205 and the bottoms of the two sides of the top spot welding seat 103 are fixedly connected. Both sides of the outside of the clamping plate 202 are fixedly connected with tension springs 206. The other ends of the tension springs 206 are fixedly connected with the two sides of the outer side of the inner wall of the mounting seat 201. The bottom of the outside of the clamping plate 202 is fixedly connected with a limiting component 207.

[0039] The limiting component 207 includes a limiting rod 207a. The inner side of the limiting rod 207a is fixedly connected to the bottom of the outer side of the clamping plate 202. The cross-section of the limiting rod 207a is cross-shaped. A cross-shaped limiting groove 207b is formed in the bottom of the outer side of the mounting seat 201. The inner wall of the cross-shaped limiting groove 207b is slidably connected to the surface of the limiting rod 207a.

[0040] A limiting disc 207c is fixedly connected to the outer side of the limiting rod 207a. The diameter of the limiting disc 207c is larger than the diameter of the inner wall of the cross-shaped limiting groove 207b.

[0041] Specifically, place two plates on the plate support seat 105, start the electric telescopic rod 102 to drive the spot welding head 104 to move inward, clamp the joint of the two plates, and turn on the spot welding head 104 for welding.

[0042] Specifically, during welding, the clamping plate 202 will move inward to clamp the two plates on the plate support seat 105, making the contact between the inner sides of the plates more fitting. When welding stops, the clamping plate 202 resets, so that the clamping plate 202 no longer clamps the welded plates.

[0043] Specifically, during the movement of the clamping plate 202, the sliding fit between the limiting rod 207a and the cross-shaped limiting groove 207b is used to limit the movement track of the clamping plate 202 in the front-back and up-down directions, ensuring the stability of the use of the clamping plate 202.

[0044] Specifically, by using the fact that the diameter of the limiting disc 207c is larger than the diameter of the inner wall of the limiting groove, the maximum movement distance of the clamping plate 202 can be limited, avoiding the situation that the limiting rod 207a and the cross-shaped limiting groove 207b are separated due to the excessive movement distance of the clamping plate 202.

[0045] Further, when spot welding two plates is required, the user can place the two plates on the plate support seat 105 and make the inner sides of the two plates fit together. Then start the electric telescopic rod 102, so that the upper and lower spot welding seats 103 move inward. Subsequently, the two spot welding seats 103 will drive the corresponding spot welding heads 104 to move inward, clamp the joint of the two plates, and turn on the spot welding heads 104, so that the spot welding heads 104 generate heat to fuse the joint of the two plates, thereby welding the two plates together.

[0046] Further, when the two spot welding seats 103 move inward and approach the sheet material, the upper spot welding seat 103 will drive the two transmission members 205 to move downward, causing the transmission members 205 to drive the corresponding second inclined blocks 204 to move downward. Subsequently, by utilizing the sliding connection between the bottom inclined surface of the second inclined block 204 and the top inclined surface of the first inclined block 203, the second inclined block 204 pushes the first inclined block 203 to move inward. Then, the first inclined block 203 will drive the clamping plate 202 to move inward to clamp the two sheets on the sheet support seat 105, making the contact between the inner sides of the sheets more fitting. At the same time, the tension spring 206 is pulled to generate a tensile force. When the electric telescopic rod 102 is activated to drive the spot welding seat 103 to reset after the workpiece is spot welded, the upper spot welding seat 103 will drive the second inclined block 204 to move upward through the transmission member 205. Subsequently, the second inclined block 204 will stop squeezing the first inclined block 203. At this time, the tensile force of the tension spring 206 will be released, so as to be able to pull the clamping plate 202 to reset, so that the clamping plate 202 no longer clamps the welded sheet material.

[0047] Further, during the process of the clamping plate 202 moving left and right, the clamping plate 202 will drive the limiting rod 207a to slide along the inner wall of the cross-shaped limiting groove 207b. By using the cross-shaped cross-section of the limiting rod 207a, the movement trajectory of the clamping plate 202 can be limited in the front, back, up, and down directions by the sliding fit between the limiting rod 207a and the cross-shaped limiting groove 207b, ensuring the stability of the clamping plate 202 during use.

[0048] Further, during the process of the limiting rod 207a sliding, since the diameter of the limiting disk 207c is larger than the diameter of the inner wall of the limiting groove, the maximum movement distance of the limiting rod 207a can be limited. At this time, the maximum movement distance of the clamping plate 202 can be restricted, avoiding the situation that the limiting rod 207a is disengaged from the cross-shaped limiting groove 207b due to the clamping plate 202 moving too long a distance.

[0049] It should be noted that pulleys can be added to the first inclined block 203 to ensure that the driving of the first inclined block 203 by the second inclined block 204 is more labor-saving and smooth.

[0050] Embodiment 3 Refer to Figures 1 to 7 , which is the third embodiment of the present invention, provides an air extraction mechanism 300 to realize the extraction and filtration of welding fumes.

[0051] The air extraction mechanism 300 includes an air extraction pump 301. The back surface of the air extraction pump 301 is fixedly connected to the bottom of the rear side of the inner wall of the spot welding frame 101. The bottom of the back surface of the spot welding frame 101 is fixedly connected with an activated carbon filter 302. The bottom of the activated carbon filter 302 is communicated with the air inlet end of the air extraction pump 301. The top of the activated carbon filter 302 is communicated with an air extraction main pipe 303. The left side of the air extraction main pipe 303 is communicated with two air extraction branch pipes 304. The inner side of the spot welding seat 103 is fixedly connected with a flue gas gathering hood 305. The flue gas gathering hood 305 is sleeved on the surface of the spot welding head 104. The back surface of the flue gas gathering hood 305 is communicated with the air extraction branch pipe 304. The rear side of the inner wall of the spot welding frame 101 is fixedly connected with a welding point cooling component 306. Both sides of the rear side of the inner wall of the spot welding frame 101 are fixedly connected with local cooling components 307.

[0052] The welding point cooling component 306 includes a first air guiding seat 306a. The back surface of the first air guiding seat 306a is fixedly connected to the rear side of the inner wall of the spot welding frame 101. The bottom of the first air guiding seat 306a is provided with a first air inlet hole 306b. The first air guiding seat 306a is communicated with an air inlet main pipe 306c through the first air inlet hole 306b. One end of the air inlet main pipe 306c away from the first air guiding seat 306a is communicated with the air outlet end of the air extraction pump 301.

[0053] The local cooling component 307 includes a second air guiding seat 307a. The back surface of the second air guiding seat 307a is fixedly connected to both sides of the rear side of the inner wall of the spot welding frame 101. The rear side of the bottom of the second air guiding seat 307a is provided with a second air inlet hole 307b. The second air guiding seat 307a is communicated with an air inlet branch pipe 307c through the second air inlet hole 307b. One end of the air inlet branch pipe 307c away from the second air guiding seat 307a is communicated with the air inlet main pipe 306c. Sealing components 307d are movably embedded on both sides of the inner wall of the first air guiding seat 306a.

[0054] The sealing member 307d includes a first seal 307d-1, which is movably embedded on both sides of the inner wall of the first air guide seat 306a. Connecting plates 307d-2 are fixedly connected to the front side and the rear side of the outside of the first seal 307d-1. A second seal 307d-3 is movably embedded on the inner side of the inner wall of the second air guide seat 307a. The second seal 307d-3 covers the top of the second air inlet hole 307b. A pull rod 307d-4 is fixedly connected to the top of the outside of the second seal 307d-3. The outside of the pull rod 307d-4 penetrates into the interior of the mounting seat 201 and is fixedly connected to the rear side of the inner bottom of the clamping plate 202. An activity groove 307d-5 is formed in the inner side of the top of the plate support seat 105. The inner wall of the activity groove 307d-5 is slidably connected to the surface of the connecting plate 307d-2. The outside of the connecting plate 307d-2 is fixedly connected to the inner side of the second seal 307d-3.

[0055] Limit seats 307d-6 are fixedly connected to the inner sides of the front side and the rear side of the inner wall of the activity groove 307d-5. The inner wall of the limit seat 307d-6 is slidably connected to the surface of the connecting plate 307d-2.

[0056] The plate support seat 105 is arranged in a C shape.

[0057] Two anti-blocking grooves 308 are formed in the rear side of the inner wall of the spot welding frame 101. The surface of the air extraction branch pipe 304 is slidably connected to the inner wall of the anti-blocking groove 308. The air extraction branch pipe 304 is made of rubber.

[0058] Specifically, an air extraction pump 301 generates a suction force on the activated carbon filter 302 to extract the welding fumes generated during welding and filter them through the activated carbon filter 302, thereby filtering harmful substances and avoiding the presence of many harmful substances in the welding fumes and being easily inhaled by the user into the lungs, causing harm to the user's body.

[0059] Specifically, when the welding of the plate is completed, the wind generated at the air outlet end of the air extraction pump 301 can be blown to the welding position of the plate through the guidance of the first air guide seat 306a, thereby being able to assist in cooling the welding position of the plate and improving the overall welding efficiency.

[0060] Specifically, during the welding process of the plate, the airflow in the air inlet main pipe 306c can be diverted into the air inlet branch pipe 307c and guided through the second air guide seat 307a, so that the airflow blows to the un-welded position at the bottom of the plate for cooling, ensuring a certain temperature difference between the welded position and the un-welded position. Since the temperature of the un-welded position is relatively low, the heat affected zone is small, and the generated thermal stress and deformation are also relatively small. In this way, subsequent straightening processes can be reduced, saving time and cost.

[0061] Specifically, it can automatically control the cooling of the un-welded part at the bottom of the sheet during spot welding of the sheet and cool the welded part when the sheet stops spot welding.

[0062] Specifically, during the sliding process of the connecting plate 307d-2 in the movable groove 307d-5, the connecting plate 307d-2 is more stable when driving the first seal 307d-1.

[0063] Specifically, the sheet support base 105 is arranged in a C shape to facilitate making space for installing the second air guide seat 307a, so as to ensure that the second air guide seat 307a can cool the un-welded position at the bottom of the sheet.

[0064] Specifically, by using the anti-blocking groove 308, the air extraction branch pipe 304 can move inside the anti-blocking groove 308 along with the up and down movement of the spot welding seat 103, avoiding the situation that the air extraction branch pipe 304 directly penetrates through the spot welding frame 101 and is connected to the spot welding seat 103, which may cause the air extraction branch pipe 304 to bend when the spot welding seat 103 moves up and down, resulting in a reduction in the air extraction effect. Then, by using the rubber material of the air extraction branch pipe 304, it can effectively ensure that the air extraction branch pipe 304 adapts to the current height position of the spot welding seat 103.

[0065] Furthermore, during the process of spot welding two sheets with the spot welding head 104, the user can start the air extraction pump 301 to generate a suction force on the activated carbon filter 302. Subsequently, the activated carbon filter 302 will conduct the suction force to the position of the air extraction branch pipe 304 through the air extraction main pipe 303. Then, the air extraction branch pipe 304 will generate a suction force on the smoke gathering hood 305, and the welding smoke generated during welding at the welding position covered by the smoke gathering hood 305 will be extracted by the suction force generated by the air extraction pump 301. At the same time, during the extraction process, it will also pass through the activated carbon filter 302 for filtration, so as to filter out harmful substances and avoid the situation that the welding smoke contains a lot of harmful substances and is easily inhaled by the user into the lungs, causing harm to the user's body.

[0066] Furthermore, when the sheet is welded, the wind generated at the air outlet end of the air extraction pump 301 can be introduced into the inside of the first air guide seat 306a through the air inlet main pipe 306c and the first air inlet hole 306b. And at this time, the sheet covers the top of the first air guide seat 306a, so that the top of the first air guide seat 306a is sealed. And at this time, the inside of the first air guide seat 306a will blow out air, and the blown air can be guided by the first air guide seat 306a to blow to the welded part of the sheet, so as to assist in cooling the welded part of the sheet, thereby improving the overall welding efficiency.

[0067] Further, during the welding of the sheet, the first air inlet hole 306b can be closed, so that the air flow in the main air inlet pipe 306c is diverted into the branch air inlet pipes 307c. Then, these air flows will enter the inner parts of the second air guide seats 307a on both sides through the branch air inlet pipes 307c and the second air inlet holes 307b, and are guided by the second air guide seats 307a, so that the air flows blow to both sides of the bottom of the sheet. During the welding of the sheet, the un-welded positions are cooled, so that a certain temperature difference is maintained between the welded position and the un-welded position. Since the temperature of the un-welded position is relatively low and the heat influence is small, the thermal stress and deformation generated are also relatively small. In this way, the subsequent straightening process can be reduced, saving time and cost.

[0068] Further, when the clamping plate 202 moves outward (when the spot welding of the sheet stops), the clamping plate 202 will drive the pull rod 307d-4 to move outward. Subsequently, the pull rod 307d-4 will drive the second seal 307d-3 to move outward, so that the second seal 307d-3 closes the second air inlet hole 307b. At this time, the air flow in the main air inlet pipe 306c can only flow to the first air inlet hole 306b. Then, the second seal 307d-3 will also drive the connecting plate 307d-2 to move outward, so that the connecting plate 307d-2 drives the two first seals 307d-1 to move outward. At this time, the two first seals 307d-1 will move outward and are movably embedded in the inner walls of the two first air guide seats 306a, so as to ensure that the air flow in the main air inlet pipe 306c can gush out to cool the welded position of the sheet. When the clamping plate 202 moves inward (when the sheet is spot welded), the clamping plate 202 will drive the pull rod 307d-4 to move inward, so that the pull rod 307d-4 drives the second seal 307d-3 to move inward. Subsequently, the second seal 307d-3 can be separated from the second air inlet hole 307b. At this time, the second air inlet hole 307b is no longer sealed, so that the air flow in the main air inlet pipe 306c can enter the second air guide seat 307a through the branch air inlet pipe 307c and the second air inlet hole 307b to blow the un-welded position at the bottom of the sheet. At the same time, the second seal 307d-3 will also drive the connecting plate 307d-2 to move inward. Subsequently, the connecting plate 307d-2 drives the corresponding first seal 307d-1 to move inward, so that the inner sides of the two first seals 307d-1 are mutually attached and seal the first air inlet hole 306b, preventing the air flow in the main air inlet pipe 306c from entering the first air guide seat 306a through the first air inlet hole 306b, so as to automatically control the cooling of the un-welded position at the bottom of the sheet during the spot welding of the sheet and the cooling of the welded position when the spot welding of the sheet stops.

[0069] Further, during the sliding process of the connecting plate 307d-2 within the movable slot 307d-5, through the sliding connection between the limit seat 307d-6 and the connecting plate 307d-2, the connecting plate 307d-2 can be made more stable when driving the first seal 307d-1, avoiding the occurrence of poor sealing effect caused by deviation.

[0070] Further, during the process of using the plate support seat 105 to support two plates, since the plate support seat 105 is C-shaped, it is convenient to create space for installing the second air guide seat 307a, thereby ensuring that the second air guide seat 307a can cool the un-welded position at the bottom of the plate.

[0071] Further, during the up and down movement of the spot welding seat 103, by using the anti-blocking groove 308, the air extraction branch pipe 304 can move within the anti-blocking groove 308 along with the up and down movement of the spot welding seat 103, avoiding the situation that the air extraction branch pipe 304 directly penetrates through the spot welding frame 101 and is connected to the spot welding seat 103, which may cause the air extraction branch pipe 304 to be bent when the spot welding seat 103 moves up and down, resulting in a reduction in the air extraction effect. Moreover, since the material of the air extraction branch pipe 304 is rubber, it can effectively ensure that the air extraction branch pipe 304 adapts to the current height position of the spot welding seat 103.

[0072] The remaining structure is the same as that of Embodiment 2.

[0073] Embodiment 4 Refer to Figures 1 to 9 , which is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that this embodiment provides a spot welding device and method for the production of power distribution cabinets.

[0074] When spot welding two plates, the user can place the two plates on the plate support seat 105 and make the inner sides of the two plates fit together. Then, start the electric telescopic rod 102 to make the upper and lower spot welding seats 103 move inward. Subsequently, the two spot welding seats 103 will drive the corresponding spot welding heads 104 to move inward, clamp the joint of the two plates, and turn on the spot welding heads 104 to generate heat, thereby fusing the joint of the two plates and causing welding between the two plates.

[0075] When the two spot welding seats 103 move inward and approach the sheet metal, the upper spot welding seat 103 will drive the two transmission parts 205 to move downward, causing the transmission parts 205 to drive the corresponding second inclined blocks 204 to move downward. Subsequently, by utilizing the sliding connection between the bottom inclined surface of the second inclined block 204 and the top inclined surface of the first inclined block 203, the second inclined block 204 pushes the first inclined block 203 to move inward. Then, the first inclined block 203 will drive the clamping plate 202 to move inward to clamp the two sheets on the sheet metal support seat 105, making the contact between the inner sides of the sheets more fitting. At the same time, the tension spring 206 is pulled to generate a tensile force. When the electric telescopic rod 102 is started to drive the spot welding seat 103 to reset after the workpiece is spot welded, the upper spot welding seat 103 will drive the second inclined block 204 to move upward through the transmission part 205. Subsequently, the second inclined block 204 will stop squeezing the first inclined block 203. At this time, the tensile force of the tension spring 206 will be released, so as to be able to pull the clamping plate 202 to reset, so that the clamping plate 202 no longer clamps the welded sheets.

[0076] During the process of the clamping plate 202 moving left and right, the clamping plate 202 will drive the limiting rod 207a to slide along the inner wall of the cross-shaped limiting groove 207b. By using the cross-shaped cross-section of the limiting rod 207a, the sliding fit between the limiting rod 207a and the cross-shaped limiting groove 207b can be used to limit the movement trajectory of the clamping plate 202 in the front-back and up-down directions, ensuring the stability of the clamping plate 202 during use.

[0077] During the process of the limiting rod 207a sliding, since the diameter of the limiting disc 207c is greater than the diameter of the inner wall of the limiting groove, the maximum movement distance of the limiting rod 207a can be limited. At this time, the maximum movement distance of the clamping plate 202 can be restricted, avoiding the situation that the limiting rod 207a is disengaged from the cross-shaped limiting groove 207b due to the clamping plate 202 moving too long a distance.

[0078] During the process of using the spot welding head 104 to spot weld two sheets, the user can start the air extraction pump 301 to generate a suction force on the activated carbon filter 302. Subsequently, the activated carbon filter 302 will conduct the suction force to the position of the air extraction branch pipe 304 through the air extraction main pipe 303. Then, the air extraction branch pipe 304 will generate a suction force on the welding fume gathering hood 305. The welding fume generated at the welding position covered by the welding fume gathering hood 305 during welding will be extracted by the suction force generated by the air extraction pump 301. At the same time, it will also pass through the activated carbon filter 302 for filtration during the extraction process, so as to filter out harmful substances and avoid the situation that the welding fume contains more harmful substances and is easily inhaled by the user into the lungs, causing harm to the user's body.

[0079] When the welding of the plate is completed, the wind generated at the air outlet end of the air extraction pump 301 can be introduced into the interior of the first air guiding seat 306a through the main air inlet pipe 306c and the first air inlet holes 306b. At this time, the plate covers the top of the first air guiding seat 306a, so that the top of the first air guiding seat 306a is sealed. At this time, air will be blown out inside the first air guiding seat 306a, and the blown air can be guided by the first air guiding seat 306a to blow to the welding position of the plate, thereby assisting in cooling the welding position of the plate and improving the overall welding efficiency.

[0080] During the welding process of the plate, the first air inlet holes 306b can be closed, so that the air flow in the main air inlet pipe 306c is diverted into the air inlet branch pipes 307c. Then, these air flows will enter the interiors of the two second air guiding seats 307a through the air inlet branch pipes 307c and the second air inlet holes 307b, and are guided by the second air guiding seats 307a so that the air flows blow to both sides of the bottom of the plate. During the welding process of the plate, the un-welded positions are cooled, ensuring a certain temperature difference between the welding position and the un-welded positions. Since the temperature of the un-welded positions is relatively low and the heat influence is small, the generated thermal stress and deformation are also relatively small. This can reduce the subsequent straightening process and save time and cost.

[0081] When the clamping plate 202 moves outward (when the spot welding of the plate stops), the clamping plate 202 drives the pull rod 307d-4 to move outward. Subsequently, the pull rod 307d-4 drives the second seal 307d-3 to move outward, so that the second seal 307d-3 closes the second air inlet hole 307b. At this time, the air flow in the main air inlet pipe 306c can only flow to the first air inlet hole 306b. Then, the second seal 307d-3 also drives the connecting plate 307d-2 to move outward, so that the connecting plate 307d-2 drives the two first seals 307d-1 to move outward. At this time, the two first seals 307d-1 move outward and are movably embedded in the inner walls of the two first air guiding seats 306a, so as to ensure that the air flow in the main air inlet pipe 306c can gush out to cool the welded part of the plate. When the clamping plate 202 moves inward (when the plate is spot welded), the clamping plate 202 drives the pull rod 307d-4 to move inward, so that the pull rod 307d-4 drives the second seal 307d-3 to move inward. Subsequently, the second seal 307d-3 can be disengaged from the second air inlet hole 307b. At this time, the second air inlet hole 307b is no longer sealed, so that the air flow in the main air inlet pipe 306c can enter the second air guiding seat 307a through the air inlet branch pipe 307c and the second air inlet hole 307b to blow the un-welded position at the bottom of the plate. At the same time, the second seal 307d-3 also drives the connecting plate 307d-2 to move inward. Subsequently, the connecting plate 307d-2 drives the corresponding first seal 307d-1 to move inward, so that the inner sides of the two first seals 307d-1 are in contact with each other and seal the first air inlet hole 306b, avoiding the air flow in the main air inlet pipe 306c from entering the first air guiding seat 306a through the first air inlet hole 306b. Thus, it can automatically control the cooling of the welded part when the plate stops spot welding and the cooling of the un-welded position at the bottom of the plate when the plate is spot welded.

[0082] During the sliding process of the connecting plate 307d-2 in the moving groove 307d-5, through the sliding connection between the limiting seat 307d-6 and the connecting plate 307d-2, the connecting plate 307d-2 can be made more stable when driving the first seal 307d-1, avoiding the occurrence of deviation resulting in poor sealing effect.

[0083] During the process of using the plate support seat 105 to support two plates, since the plate support seat 105 is arranged in a C shape, it is convenient to make room for installing the second air guiding seat 307a, so as to ensure that the second air guiding seat 307a can cool the un-welded position at the bottom of the plate.

[0084] During the up and down movement of the spot welding seat 103, by using the anti-blocking groove 308, the air extraction branch pipe 304 can move inside the anti-blocking groove 308 along with the up and down movement of the spot welding seat 103, avoiding the situation that the air extraction branch pipe 304 directly penetrates through the spot welding frame 101 and is connected to the spot welding seat 103, which may cause the air extraction branch pipe 304 to bend when the spot welding seat 103 moves up and down, resulting in a reduction in the air extraction effect. Moreover, since the material of the air extraction branch pipe 304 is rubber, it can effectively ensure that the air extraction branch pipe 304 adapts to the height position of the current spot welding seat 103.

[0085] In summary, when using the spot welding mechanism 100, the self-locking mechanism 200 will be synchronously activated to clamp and lock the sheet material. When the spot welding mechanism 100 is turned off, the self-locking mechanism 200 will be synchronously turned off to stop clamping and locking the sheet material. The welding fumes generated during the welding process can be extracted and filtered by the air extraction mechanism 300.

[0086] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel aspects and advantages of the subject matter described in this application. For example, the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode of implementing the present invention or those features that are not relevant to the implementation of the present invention.

[0087] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A spot welding device for the production of distribution cabinets, characterized in that: Including, A spot welding mechanism (100), which includes a spot welding frame (101). Electric telescopic rods (102) are fixedly connected to the rear sides of the top and bottom of the inner wall of the spot welding frame (101). The output ends of the electric telescopic rods (102) are fixedly connected to spot welding seats (103). Spot welding heads (104) for spot welding are fixedly connected to the inner sides of the spot welding seats (103). Plate support seats (105) are fixedly connected to both sides of the rear side of the inner wall of the spot welding frame (101); A self-locking mechanism (200), which includes mounting seats (201). There are two mounting seats (201). The rear sides of the inner sides of the mounting seats (201) are fixedly connected to both sides of the spot welding frame (101). Clamping plates (202) are slidably connected to the interiors of the mounting seats (201). First inclined blocks (203) are fixedly connected to the tops of the clamping plates (202). The tops of the first inclined blocks (203) penetrate through the tops of the mounting seats (201) and are slidably connected to the mounting seats (201). Second inclined blocks (204) are slidably connected to the tops of the first inclined blocks (203). Transmission members (205) are fixedly connected to the tops of the second inclined blocks (204). The tops of the inner sides of the transmission members (205) are fixedly connected to the bottoms of both sides of the upper spot welding seat (103). Pulling springs (206) are fixedly connected to both sides of the outer sides of the clamping plates (202). The other ends of the pulling springs (206) are fixedly connected to both sides of the outer sides of the inner walls of the mounting seats (201). Limiting components (207) are fixedly connected to the bottoms of the outer sides of the clamping plates (202); and, An air extraction mechanism (300), which includes an air extraction pump (301). The back of the air extraction pump (301) is fixedly connected to the bottom of the right side of the rear side of the inner wall of the spot welding frame (101). An activated carbon filter (302) is fixedly connected to the bottom of the back of the spot welding frame (101). The bottom of the activated carbon filter (302) is communicated with the air inlet end of the air extraction pump (301). An air extraction main pipe (303) is communicated with the top of the activated carbon filter (302). Two air extraction branch pipes (304) are communicated with the left side of the air extraction main pipe (303). A flue gas gathering hood (305) is fixedly connected to the inner side of the spot welding seat (103). The flue gas gathering hood (305) is sleeved on the surface of the spot welding head (104). The back of the flue gas gathering hood (305) is communicated with the air extraction branch pipe (304). A welding point cooling component (306) is fixedly connected to the rear side of the inner wall of the spot welding frame (101). Local temperature reduction components (307) are fixedly connected to both sides of the rear side of the inner wall of the spot welding frame (101).

2. The spot welding device for the production of power distribution cabinets according to claim 1, characterized in that: The limiting component (207) includes a limiting rod (207a). The inner side of the limiting rod (207a) is fixedly connected to the bottom of the outer side of the clamping plate (202). The cross-section of the limiting rod (207a) is cross-shaped. A cross-shaped limiting groove (207b) is formed in the bottom of the outer side of the mounting seat (201). The inner wall of the cross-shaped limiting groove (207b) is slidably connected to the surface of the limiting rod (207a).

3. The spot welding device for the production of power distribution cabinets according to claim 1, wherein: The welding cooling component (306) includes a first air guiding seat (306a). The back of the first air guiding seat (306a) is fixedly connected to the rear side of the inner wall of the spot welding frame (101). A first air inlet hole (306b) is formed in the bottom of the first air guiding seat (306a). The first air guiding seat (306a) is communicated with an air inlet main pipe (306c) through the first air inlet hole (306b). One end of the air inlet main pipe (306c) away from the first air guiding seat (306a) is communicated with the air outlet end of the air extraction pump (301).

4. The spot welding device for the production of power distribution cabinets according to claim 3, characterized in that: The local cooling component (307) includes a second air guiding seat (307a). The back of the second air guiding seat (307a) is fixedly connected to both sides of the rear side of the inner wall of the spot welding frame (101). A second air inlet hole (307b) is formed in the rear side of the bottom of the second air guiding seat (307a). The second air guiding seat (307a) is communicated with an air inlet branch pipe (307c) through the second air inlet hole (307b). One end of the air inlet branch pipe (307c) away from the second air guiding seat (307a) is communicated with the air inlet main pipe (306c). Sealing components (307d) are movably embedded on both sides of the inner wall of the first air guiding seat (306a).

5. The spot welding device for the production of power distribution cabinets according to claim 4, characterized in that: The sealing component (307d) includes a first seal (307d-1). The first seal (307d-1) is movably embedded on both sides of the inner wall of the first air guiding seat (306a). Connecting plates (307d-2) are fixedly connected to both the front side and the rear side of the outer side of the first seal (307d-1). A second seal (307d-3) is movably embedded on the inner side of the inner wall of the second air guiding seat (307a). The second seal (307d-3) covers the top of the second air inlet hole (307b). A pull rod (307d-4) is fixedly connected to the top of the outer side of the second seal (307d-3). The outer side of the pull rod (307d-4) penetrates into the inside of the mounting seat (201) and is fixedly connected to the rear side of the bottom of the inner side of the clamping plate (202). An activity groove (307d-5) is formed in the inner side of the top of the plate support seat (105). The inner wall of the activity groove (307d-5) is slidably connected to the surface of the connecting plate (307d-2). The outer side of the connecting plate (307d-2) is fixedly connected to the inner side of the second seal (307d-3).

6. The spot welding device for the production of power distribution cabinets according to claim 2, wherein: A limiting disc (207c) is fixedly connected to the outer side of the limiting rod (207a). The diameter of the limiting disc (207c) is larger than the diameter of the inner wall of the cross-shaped limiting groove (207b).

7. The spot welding device for the production of power distribution cabinets according to claim 5, characterized in that: On the inner sides of the front and rear of the inner wall of the movable slot (307d-5), limit seats (307d-6) are fixedly connected. The inner wall of the limit seat (307d-6) is slidably connected to the surface of the connecting plate (307d-2), and the plate support seat (105) is arranged in a C shape.

8. The spot welding device for the production of power distribution cabinets according to claim 2 or 3, characterized in that: On the rear side of the inner wall of the spot welding frame (101), two anti-blocking grooves (308) are provided. The surface of the air extraction branch pipe (304) is slidably connected to the inner wall of the anti-blocking groove (308), and the air extraction branch pipe (304) is made of rubber.

9. A spot welding method for a spot welding device used in the production of a power distribution cabinet, characterized in that: Including the spot welding equipment for the production of power distribution cabinets according to any one of claims 1 to 8, further comprising Start the spot welding mechanism (100) for welding, and at the same time drive the self-locking mechanism (200) to clamp and lock the plate. During the welding process of the spot welding mechanism (100), start the air extraction mechanism (300) to extract the welding fume. After the spot welding mechanism (100) stops welding, it will drive the self-locking mechanism (200) to close.

10. The spot welding method of the spot welding equipment for the production of power distribution cabinets according to claim 9, characterized in that: Including Start the spot welding mechanism (100) to weld two placed plates, and at the same time drive the self-locking mechanism (200) to clamp and lock the placed plates. During the welding process of the spot welding mechanism (100), start the air extraction mechanism (300) to extract and filter the welding fume generated during the welding of the two plates. After the workpiece is spot welded, turn off the spot welding mechanism (100) to stop welding. At the same time, it will drive the self-locking mechanism (200) to close, cancel the clamping and locking of the plate, and the wind blown by the air extraction mechanism (300) can blow towards the welding point for cooling.

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