Resistance welding machine for steel plate processing

Abstract

The present invention relates to the technical field of resistance welding machines, and specifically to a resistance welding machine for steel plate processing, comprising a frame, a welding mechanism installed on the frame, an adjusting mechanism installed on the welding mechanism, a limiting mechanism installed on the welding mechanism, a dust suction mechanism installed at the bottom of the frame, a collecting mechanism installed on the dust suction mechanism, an opening and closing mechanism installed on the dust suction mechanism, and a control mechanism installed on the frame; the welding mechanism facilitates welding of steel plates, the adjusting mechanism facilitates rapid adjustment and control of the welding width, the welding mechanism drives the limiting mechanism to achieve position control of the adjusting mechanism by the limiting mechanism, the dust suction mechanism facilitates removal of smoke or debris generated during welding, the collecting mechanism facilitates filtering and storage of large debris, the opening and closing mechanism facilitates opening and closing control of the dust suction mechanism, and the welding mechanism drives the control mechanism to achieve control of the opening and closing mechanism by the control mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of resistance welding machines, in particular to a resistance welding machine for processing steel plates. Background Art

[0002] Resistance welding machine refers to a welding equipment that uses the principle of resistance heating for welding. Resistance welding machines can be divided into different types according to different uses and requirements. From the welding method, there are spot welding machines, seam welding machines, projection welding machines and butt welding machines; from the electrode pressure form, there are lever type, electric cam type, pneumatic type, hydraulic type and pneumatic and hydraulic combined type.

[0003] However, traditional double-head resistance welding machines are fixed to the equipment by bolts. When the width needs to be adjusted, the machine needs to be stopped to remove the bolts, and then the distance needs to be measured and tightened. This is cumbersome to operate, and it is easy to cause the machine head to shift position when tightening the bolts, affecting the welding accuracy. In addition, some smoke and dust are usually generated during resistance welding processing. Traditional dust collection components are installed on one side, and the dust collection effect is poor. At the same time, the dust collection pipe lacks a filter component, which leads to large debris being sucked in and blocked. When tools or other items are accidentally sucked in, it is easy to cause damage to the dust collection equipment. When loading and unloading operations are performed without welding, it is inconvenient to close the dust collection pipe, resulting in a waste of suction resources. In addition, if the opening and closing are controlled by frequently starting and stopping the solenoid valve or dust collection equipment, it is easy to affect the service life and cause equipment damage. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a resistance welding machine for steel plate processing.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a resistance welding machine for steel plate processing, comprising a frame, a welding mechanism installed on the frame, an adjusting mechanism installed on the welding mechanism, a limiting mechanism installed on the welding mechanism, a dust suction mechanism installed at the bottom of the frame, a collecting mechanism installed on the dust suction mechanism, an opening and closing mechanism installed on the dust suction mechanism, and a control mechanism installed on the frame.

[0006] Specifically, the welding mechanism includes an electrode plate, an electrode plate is installed on the bottom table of the frame, a crossbeam is installed on the top of the frame, the crossbeam is slidably connected to the mounting plate through a guide rail and a slider, a screw rod is rotatably connected at the midline of one side of the crossbeam, one end of the screw rod is connected to the motor, the mounting plate is threadedly connected to the screw rod through a nut, two welding heads are installed on one side of the mounting plate, and the bottoms of the two welding heads are located on the top of the electrode plate.

[0007] Specifically, the adjusting mechanism includes sliding grooves. There are two parallel sliding grooves provided on the mounting plate. Two guide blocks are respectively and slidably connected inside the two sliding grooves. Both the guide blocks and the sliding grooves are in a "convex" shape structure. The two welding heads are respectively fixedly connected to the two guide blocks. The welding heads are slidably connected to the mounting plate through the guide blocks. Among them, the two guide blocks are fixedly connected to the mounting plate by bolts. At both ends on one side of the mounting plate, fixing blocks are respectively and perpendicularly fixedly connected. A screw rod is rotatably connected between the two fixing blocks. One of the welding heads is rotatably connected to the screw rod, and the other welding head is threadedly connected to the screw rod. One end of the screw rod extends to the outside of the fixing block. A driving disk is installed at one end of the screw rod. An external leakage scale is provided at the top on one side of the mounting plate.

[0008] Specifically, the limiting mechanism includes a stop block. A stop block is fixedly connected to the side wall at one end of the frame. Two top blocks are slidably connected at the midline inside the mounting plate. The two top blocks are connected by a top rod. One end of the top rod penetrates through the top block and extends to the outside of the mounting plate. The top rod is slidably connected to the mounting plate. A compression spring is connected between one end of one of the top blocks and the inner side of the mounting plate. Driving grooves are respectively provided at the top and bottom of the two top blocks. Two symmetric top plates are respectively slidably connected inside both ends of the mounting plate through return springs. The top plates are in a "T" shape structure. The opposite ends of the two groups of top plates respectively extend into the sliding grooves and抵触 the bottom of the guide blocks. The connections between the top plates and the guide blocks are both in a toothed structure. Guide wheels are respectively rotatably connected to the opposite ends of the two groups of top plates. The guide wheels抵触 the top blocks.

[0009] Specifically, the driving groove is in a trapezoidal structure. The side walls at both ends of the driving groove are in an arc shape structure. A rubber block is installed at one end of the top rod. The rubber block is in a cylindrical structure. The diameter of the rubber block is larger than the diameter of the top rod.

[0010] Specifically, the dust collection mechanism includes a cover shell. A cover shell is installed at the bottom of the frame. The cover shell is in a funnel shape structure. The top of the cover shell extends to the bottom of the welding head. Two ventilation nets are installed at the top of the cover shell. A dust collection pipe is installed at the bottom of the cover shell. A vacuum cleaner is installed at one end of the bottom of the frame. One end of the dust collection pipe is connected to the vacuum cleaner.

[0011] Specifically, the collection mechanism includes a collection box. The collection box is slidably connected to the inner side at the top of the dust collection pipe. A filter screen is installed at the bottom of the collection box. One end of the collection box extends to the outside of the dust collection pipe. A handle is installed at the outside of one end of the collection box. The handle is in a "U" shape structure. A sealing ring is installed at the outside of one end of the collection box. The sealing ring抵触 the inner wall of the dust collection pipe. Through the sliding connection between the collection box and the dust collection pipe.

[0012] Specifically, the opening and closing mechanism includes a connecting plate, a connecting plate is installed on one side of the bottom of the cover shell, a sealing plate is slidably connected to the inside of the connecting plate, one end of the sealing plate extends to the inside of the bottom of the cover shell, and a sealing gasket is installed on the other end of the sealing plate. The sealing gasket is slidably connected to the inside of the connecting plate through the sealing plate, and a connecting pipe is installed at the center of the outer side of the connecting plate.

[0013] Specifically, the control mechanism includes a piston, a piston is slidably connected to the inside of the block, a compression spring is connected between one side of the piston and the inside of the block, one end of the block is slidably connected to a pressure rod, one end of the pressure rod extends to the inside of the block and is fixedly connected to the piston, and a catheter is installed at the other end of the block, one end of the catheter extends to the inside of the frame and is connected to the connecting pipe.

[0014] The beneficial effects of the present invention are:

[0015] (1) The resistance welding machine for steel plate processing described in the present invention facilitates welding work at different positions of the steel plate through the installation of the welding mechanism, and can realize rapid adjustment and control of the welding width as needed through the cooperation of the adjustment mechanism, making the operation more flexible and convenient.

[0016] (2) The resistance welding machine for steel plate processing described in the present invention facilitates the resistance limit of the adjustment mechanism through the installation of the limit mechanism, and the limit mechanism is driven by the welding mechanism to release the limit of the limit mechanism, which facilitates the adjustment work of the adjustment mechanism.

[0017] (3) The resistance welding machine for steel plate processing described in the present invention is conducive to extracting smoke or debris generated during welding through the installation of a dust suction mechanism, thereby reducing pollution. The collection mechanism is also conducive to filtering and collecting large debris, thereby preventing pipe blockage, and can also remove parts that are accidentally inhaled.

[0018] (4) The resistance welding machine for steel plate processing described in the present invention realizes the opening and closing control of the dust collection mechanism by installing the opening and closing mechanism. By installing the control mechanism, the control mechanism is driven by the welding mechanism to realize the control mechanism of the opening and closing mechanism. This is beneficial for not performing dust collection work when welding is not in progress, reducing resource waste, and eliminating the need for frequent starting and stopping of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0021] Figure 2 Schematic diagram of the connection structure between the pressure rod and the stopper of the present invention;

[0022] Figure 3This is a schematic diagram of the connection structure between the mounting plate and the crossbeam of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the welding head and the mounting plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection structure between the guide block and the mounting plate of the present invention;

[0025] Figure 6 Schematic diagram of the connection structure between the top plate and the guide block of the present invention;

[0026] Figure 7 Schematic diagram of the connection structure between the top plate and the top block of the present invention;

[0027] Figure 8 This is a schematic diagram of the connection structure between the ventilation net and the cover shell of the present invention;

[0028] Figure 9 This is a schematic diagram of the connection structure between the collection box and the dust suction pipe of the present invention;

[0029] Figure 10 Schematic diagram of the connection structure between the sealing plate and the connecting plate of the present invention;

[0030] Figure 11 This is a schematic diagram of the connection structure between the filter screen and the collection box of the present invention;

[0031] Figure 12 It is a schematic diagram of the connection structure between the piston and the stopper of the present invention.

[0032] In the figure: 1. Frame; 2. Welding mechanism; 201. Electrode plate; 202. Crossbeam; 203. Screw; 204. Motor; 205. Welding head; 206. Guide rail; 207. Mounting plate; 208. Slider; 209. External scale; 3. Adjustment mechanism; 301. Slide; 302. Screw; 303. Drive plate; 304. Fixing block; 305. Guide block; 306. Bolt; 4. Limiting mechanism; 401. Stopper; 402. Ejector rod; 403. Rubber block; 404. Ejector block; 405. Ejector plate; 406. Return spring; 407, drive groove; 408, guide wheel; 409, extrusion spring; 5. Dust suction mechanism; 501, vacuum cleaner; 502, dust suction tube; 503, cover; 504, ventilation net; 6. Collection mechanism; 601, collection box; 602, handle; 603, filter; 604, sealing ring; 7. Opening and closing mechanism; 701, connecting pipe; 702, connecting plate; 703, sealing plate; 704, sealing gasket; 8. Control mechanism; 801, pressure rod; 802, guide tube; 803, piston; 804, compression spring. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 9 、 Figure 11 and Figure 12 As shown, the resistance welding machine for steel plate processing described in the present invention includes a frame 1, a welding mechanism 2 is installed on the frame 1, an adjusting mechanism 3 is installed on the welding mechanism 2, a limiting mechanism 4 is installed on the welding mechanism 2, a dust suction mechanism 5 is installed at the bottom of the frame 1, a collecting mechanism 6 is installed on the dust suction mechanism 5, an opening and closing mechanism 7 is installed on the dust suction mechanism 5, and a control mechanism 8 is installed on the frame 1.

[0035] Specifically, such as Figure 1 、 Figure 3 and Figure 4 As shown, the welding mechanism 2 includes an electrode plate 201, an electrode plate 201 is installed on the bottom table of the frame 1, a crossbeam 202 is installed on the top of the frame 1, and the crossbeam 202 is slidably connected to the mounting plate 207 through a guide rail 206 and a slider 208. A screw rod 203 is rotatably connected to the center line of one side of the crossbeam 202, and one end of the screw rod 203 is connected to the motor 204. The mounting plate 207 is threadedly connected to the screw rod 203 through a nut seat. Two welding heads 205 are installed on one side of the mounting plate 207. The bottoms of the two welding heads 205 are located on the electrode plate. At the top of 201, the installation of the crossbeam 202 facilitates the connection of the mounting plate 207. The installation of the mounting plate 207 realizes the connection of the two welding heads 205. With the cooperation of the slider 208 and the guide rail 206, the mounting plate 207 and the crossbeam 202 are slid. With the cooperation of the motor 204 and the screw rod 203, the moving position of the mounting block is precisely controlled, which facilitates the rapid welding of different positions of the steel plate. With the installation of the two welding heads 205, two positions can be welded at the same time, thereby improving the welding efficiency.

[0036] Specifically, such as Figure 3 、 Figure 4 and Figure 5As shown, the adjustment mechanism 3 includes a slide groove 301, and two parallel slide grooves 301 are provided on the mounting plate 207. Two guide blocks 305 are slidably connected inside the two slide grooves 301. The guide blocks 305 and the slide groove 301 are both "convex" shaped structures. The two welding heads 205 are fixedly connected to the two guide blocks 305 respectively, and the welding head 205 is slidably connected to the mounting plate 207 through the guide blocks 305, wherein the two guide blocks 305 are fixedly connected to the mounting plate 207 through bolts 306, and the two ends of one side of the mounting plate 207 are respectively vertically fixedly connected with fixed blocks 304, and a screw rod 302 is rotatably connected between the two fixed blocks 304, one of the welding heads 205 is rotatably connected to the screw 302, and the other welding head 205 is threadedly connected to the screw 302, one end of the screw 302 extends to the outside of the fixed block 304, and the screw 302 is A driving disk 303 is installed at the end, and an external leakage scale 209 is provided on the top of one side of the mounting plate 207. Through the installation of the two parallel slide grooves 301, it is convenient to slide and connect the two groups of the guide blocks 305. Through the cooperation of the guide blocks 305, the welding head 205 and the mounting plate 207 can be slidably connected, and then the width of the two welding heads 205 can be adjusted, so that the welding position can be adjusted according to the width of the steel plate. The fixation of one group of the guide blocks 305 by the bolts 306 is conducive to fixing the first welding head 205 and facilitating the position adjustment of the other welding head 205. The rotation of the drive is realized, and the screw 302 drives the welding head 205 to adjust the width under the action of the thread, which makes the operation more convenient. The installation of the external leakage scale 209 facilitates the observation of the adjusted width.

[0037] Specifically, such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, the limiting mechanism 4 includes a stopper 401, a stopper 401 is fixedly connected to the side wall of one end of the frame 1, and two top blocks 404 are slidably connected to the inner midline of the mounting plate 207. The two top blocks 404 are connected by a top rod 402, one end of the top rod 402 passes through the top block 404 and extends to the outside of the mounting plate 207. The top rod 402 is slidably connected to the mounting plate 207, and an extrusion spring 409 is connected between one end of the top block 404 and the inner side of the mounting plate 207. The top and bottom of the two top blocks 404 are respectively provided with a driving groove 407. The mounting plate 2 07, two symmetrical top plates 405 are slidably connected to each other at both ends through return springs 406. The top plates 405 are of a T-shaped structure. The opposite ends of the two groups of top plates 405 extend to the inside of the slide groove 301 and contact the bottom of the guide block 305. The connection between the top plates 405 and the guide block 305 is a tooth-shaped structure. The opposite ends of the two groups of top plates 405 are rotatably connected to guide wheels 408. The guide wheels 408 contact the top blocks 404. Through the contact of the extrusion springs 409, the two top blocks 404 can stably align with the guide wheels 408 inside the mounting plate 207. 08, the guide wheel 408 will drive the top plate 405 to get rid of the elastic force of the return spring 406 and conflict with the guide block 305. There is a tooth-shaped structure between the guide block 305 and the top, which is conducive to the top limiting the guide block 305, thereby limiting the welding head 205 and the mounting plate 207. The welding head 205 is stable when working. When the mounting plate 207 moves to one end of the frame 1 and resets, the top rod 402 conflicts with the stop block 401. After the top rod 402 is conflicted, it drives the two top blocks 404 to move. The two top blocks 40 After the top plate 405 is freed from the elastic force of the extrusion spring 409 and slides to a certain position, the driving groove 407 on the top block 404 moves to contact the guide wheel 408. The top plate 405 slides under the resistance of the return spring 406, causing the guide wheel 408 to enter the driving groove 407, thereby facilitating the separation of the top plate 405 from the guide block 305 and releasing the restriction. When the mounting plate 207 moves, the top rod 402 separates from the stop block 401, thereby causing the driving groove 407 on the top block 404 to contact the guide wheel 408, and the top plate 405 continues to be restricted.

[0038] Specifically, such as Figure 5 、 Figure 6 and Figure 7As shown, the driving groove 407 is of a trapezoidal structure, and the side walls at both ends of the driving groove 407 are of an arc structure. A rubber block 403 is installed at one end of the ejector rod 402. The rubber block 403 is of a cylindrical structure, and the diameter of the rubber block 403 is larger than that of the ejector rod 402, which is beneficial for the driving groove 407 to drive and control the guide wheel 408 well. Through the installation of the rubber block 403, when the ejector rod 402 abuts against the stopper 401, it plays a role in anti-wear and buffering.

[0039] Specifically, as Figure 1 and Figure 8 shown, the dust collection mechanism 5 includes a housing 503. The housing 503 is installed at the bottom of the frame 1. The housing 503 is of a funnel-shaped structure. The top of the housing 503 extends to the bottom of the welding head 205. Two ventilation nets 504 are installed at the top of the housing 503. A dust collection pipe 502 is installed at the bottom of the housing 503. A dust collector 501 is installed at one end of the bottom of the frame 1. One end of the dust collection pipe 502 is connected to the dust collector 501. Through the installation of the housing 503, it is beneficial to connect the ventilation net 504. Through the connection of the dust collection pipe 502 and the dust collector 501, it is beneficial for the dust collector 501 to extract air from the inside of the housing 503. When the welding head 205 welds the steel plate, the generated smoke is extracted through the ventilation net 504, reducing environmental pollution and also being able to extract debris.

[0040] Specifically, as Figure 8 、 Figure 9 and Figure 11 shown, the collection mechanism 6 includes a collection box 601. The collection box 601 is slidably connected to the inner side of the top of the dust collection pipe 502. A filter screen 603 is installed at the bottom of the collection box 601. One end of the collection box 601 extends to the outside of the dust collection pipe 502. A handle 602 is installed on the outside of one end of the collection box 601. The handle 602 is of a "凵" - shaped structure. A sealing ring 604 is installed on the outside of one end of the collection box 601. The sealing ring 604 abuts against the inner wall of the dust collection pipe 502. Through the sliding connection of the collection box 601 and the dust collection pipe 502, with the cooperation of the handle 602, it is convenient to disassemble and maintain the collection box 601. Through the installation of the filter screen 603, it is beneficial to filter and separate large items during dust collection, reducing the blockage of the dust collection pipe 502, and also being able to pick up accidentally inhaled parts and tools, reducing damage to the dust collector 501. Through the installation of the sealing ring 604, it plays a sealing role.

[0041] Specifically, as Figure 8 ?、 Figure 9 and Figure 10As shown, the opening and closing mechanism 7 includes a connecting plate 702, a connecting plate 702 is installed on one side of the bottom of the cover 503, a sealing plate 703 is slidably connected inside the connecting plate 702, one end of the sealing plate 703 extends to the inner side of the bottom of the cover 503, and a sealing gasket 704 is installed on the other end of the sealing plate 703. The sealing gasket 704 is slidably connected to the inside of the connecting plate 702 through the sealing plate 703, and a connecting pipe 701 is installed at the center of the outer side of the connecting plate 702. The installation of the connecting plate 702 is conducive to The sealing plate 703 is slidably connected, and with the cooperation of the sealing gasket 704, one end of the sealing plate 703 and the inside of the connecting plate 702 can maintain good airtightness. Gas is injected through the connecting tube 701, and the gas pushes the sealing gasket 704 and the sealing plate 703, thereby closing the sealing plate 703 to the bottom of the cover shell 503 and preventing dust collection. By vacuuming the inside of the connecting tube 701, the sealing plate 703 will be pulled and reset, so that the bottom of the cover shell 503 is opened for normal dust collection.

[0042] Specifically, such as Figure 2 and Figure 12 As shown, the control mechanism 8 includes a piston 803, the piston 803 is slidably connected to the inside of the stopper 401, and a compression spring 804 is connected between one side of the piston 803 and the inside of the stopper 401. One end of the stopper 401 is slidably connected to a pressure rod 801, and one end of the pressure rod 801 extends to the inside of the stopper 401 and is fixedly connected to the piston 803. The other end of the stopper 401 is equipped with a guide tube 802, and one end of the guide tube 802 extends to the inside of the frame 1 and is connected to the connecting pipe 701. The installation of the pressure rod 801 is conducive to driving and controlling the piston 803, and the activity is always kept in a reset state under the resistance of the compression spring 804, and is moved to the frame 1 through the mounting plate 207. When the end is reset, the push rod 402 on the mounting plate 207 contacts the pressure rod 801, causing the pressure rod 801 to slide free from the elastic force of the compression spring 804, thereby causing the pressure rod 801 to drive the piston 803 to inflate the conduit 802, and then causing the sealing plate 703 to seal the inner side of the bottom of the cover shell 503. When the mounting plate 207 moves to work, the pressure rod 801 is reset without external force, causing the piston 803 to reset. When the piston 803 is reset, air is extracted to cause the sealing plate 703 to shrink and open, which is conducive to dust suction during welding. When not welding or loading and unloading, the vacuum cleaner 501 is closed and dust is not sucked, so that the suction force is not wasted, and there is no need to frequently start and stop the vacuum cleaner 501 to cause damage.

[0043] When the present invention is in use, first, the installation of the crossbeam 202 is facilitated to connect the mounting plate 207, and the installation of the mounting plate 207 is used to realize the connection of the two welding heads 205. With the cooperation of the slider 208 and the guide rail 206, the mounting plate 207 and the crossbeam 202 are slid. With the cooperation of the motor 204 and the screw rod 203, the moving position of the mounting plate 207 is precisely controlled, which is convenient for rapid welding of different positions of the steel plate. With the installation of the two welding heads 205, two positions can be welded at the same time, which improves the welding efficiency. With the installation of two parallel slide grooves 301, it is convenient to slide and connect the two sets of guide blocks 305. With the cooperation of the guide blocks 305, it is convenient for the welding head 205 and the mounting plate 207 to be able to slide and connect, thereby connecting the two welding heads. The width of 205 can be adjusted, so that the welding position can be adjusted according to the width of the steel plate. The fixing of one set of guide blocks 305 by bolts 306 is conducive to fixing the first welding head 205 and facilitating the adjustment of the position of the other welding head 205. The rotation of the driving disk 303 is used to rotate the screw rod 302. The screw rod 302 drives the welding head 205 to adjust the width under the action of the thread, which is more convenient to operate. The installation of the external scale 209 is convenient for observing the adjusted width. The interference of the squeezing spring 409 enables the two top blocks 404 to stably interfere with the guide wheel 408 inside the mounting plate 207. The guide wheel 408 will drive the top plate 405 to get rid of the elastic force of the reset spring 406 and interfere with the guide block 305. The guide block 305 and the top plate The toothed structures between the parts are all beneficial to the top limiting the guide block 305, thereby limiting the welding head 205 and the mounting plate 207. The welding head 205 is stable when working. When the mounting plate 207 is moved to one end of the frame 1 for reset, the top rod 402 contacts the stop block 401. After the top rod 402 is contacted, the two top blocks 404 are driven to move. The two top blocks 404 get rid of the elastic force of the extrusion spring 409 and slide to a certain position. The driving groove 407 on the top block 404 moves to contact the guide wheel 408. The top plate 405 slides under the resistance of the reset spring 406, causing the guide wheel 408 to enter the inside of the driving groove 407, which is beneficial for the top plate 405 to separate from the guide block 305 and release the limit. When the mounting plate 207 is moved for work, the top rod 402 is separated from the stop block 401, thereby making the top block 4 04, the driving groove 407 conflicts with the guide wheel 408, and the top plate 405 continues to limit, which is conducive to the driving groove 407 to control the driving of the guide wheel 408. The installation of the rubber block 403 is conducive to the wear prevention and buffering when the top rod 402 conflicts with the stopper 401. The installation of the cover 503 is conducive to the connection of the ventilation net 504. The connection between the dust suction pipe 502 and the dust collector 501 is conducive to the dust collector 501 to exhaust the inside of the cover 503. When the welding head 205 welds the steel plate, the smoke generated is extracted through the ventilation net 504, reducing environmental pollution and also extracting debris. The collection box 601 is connected to the dust suction pipe 502 through sliding connection, and the handle 602 cooperates with the collection box 601 to facilitate disassembly and maintenance.The installation of the filter 603 is conducive to filtering and separating large objects during vacuuming, reducing the blockage of the vacuum tube 502, and can also pick up parts and tools that are accidentally sucked in, reducing damage to the vacuum cleaner 501. The installation of the connecting plate 702 is conducive to the sliding connection of the sealing plate 703. With the cooperation of the sealing gasket 704, one end of the sealing plate 703 and the inside of the connecting plate 702 can maintain good airtightness. Gas is injected through the connecting tube 701, and the gas pushes the sealing gasket 704 and the sealing plate 703, thereby closing the sealing plate 703 to the bottom of the cover 503 and preventing vacuuming. By evacuating the inside of the connecting tube 701, the sealing plate 703 will be pulled back to its original position, so that the bottom of the cover 503 is opened for normal vacuuming. The installation of the pressure rod 801 is conducive to the drive control of the piston 803. Under the interference of compression spring 804, piston 803 is always kept in contact, so that piston 803 is in a reset state. When the mounting plate 207 is moved to one end of the frame 1 to reset, the push rod 402 on the mounting plate 207 conflicts with the pressure rod 801, so that the pressure rod 801 is free from the elastic force of compression spring 804 and slides, so that the pressure rod 801 drives the piston 803 to inflate the conduit 802, and then the sealing plate 703 seals the inner side of the bottom of the cover 503. When the mounting plate 207 moves to work, the pressure rod 801 is reset without external force, so that the piston 803 is reset. When the piston 803 is reset, air is extracted, causing the sealing plate 703 to shrink and open, which is conducive to dust suction during welding. When not welding or loading and unloading, the sealing plate 703 is closed and does not suck dust, so that the suction force is not wasted and there is no need to damage the vacuum cleaner 501 by frequent starting and stopping.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0045] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A resistance welding machine for steel plate processing, characterized in that: The machine comprises a frame (1), a welding mechanism (2) is mounted on the frame (1), an adjusting mechanism (3) is mounted on the welding mechanism (2), a limiting mechanism (4) is mounted on the welding mechanism (2), a dust collecting mechanism (5) is mounted on the bottom of the frame (1), a collecting mechanism (6) is mounted on the dust collecting mechanism (5), an opening and closing mechanism (7) is mounted on the dust collecting mechanism (5), and a control mechanism (8) is mounted on the frame (1); The welding mechanism (2) comprises an electrode plate (201), the electrode plate (201) is installed on the bottom table of the frame (1), a crossbeam (202) is installed on the top of the frame (1), the crossbeam (202) is slidably connected to a mounting plate (207) via a guide rail (206) and a slider (208), a screw rod (203) is rotatably connected to a center line of one side of the crossbeam (202), one end of the screw rod (203) is cooperatively connected to a motor (204), the mounting plate (207) is threadedly connected to the screw rod (203) via a nut seat, and two welding heads (205) are installed on one side of the mounting plate (207), and the bottoms of the two welding heads (205) are located on the top of the electrode plate (201); The adjustment mechanism (3) includes a slide groove (301), and two parallel slide grooves (301) are provided on the mounting plate (207). Two guide blocks (305) are slidably connected inside the two slide grooves (301), and the guide blocks (305) and the slide groove (301) are both "convex" shaped structures. The two welding heads (205) are fixedly connected to the two guide blocks (305) respectively. The welding heads (205) are slidably connected to the mounting plate (207) through the guide blocks (305), and the two guide blocks (305) are connected to the mounting plate (207) through bolts (306). 7) Fixed connection, the two ends of one side of the mounting plate (207) are respectively vertically fixedly connected with fixed blocks (304), a screw (302) is rotatably connected between the two fixed blocks (304), one of the welding heads (205) is rotatably connected to the screw (302), and the other welding head (205) is threadedly connected to the screw (302), one end of the screw (302) extends to the outside of the fixed block (304), and a driving disk (303) is installed at one end of the screw (302), and an external leakage scale (209) is provided on the top of one side of the mounting plate (207); The limiting mechanism (4) includes a stop block (401). One side wall of one end of the frame (1) is fixedly connected with the stop block (401). Two top blocks (404) are slidably connected at the midline inside the mounting plate (207). The two top blocks (404) are connected by a top rod (402). One end of the top rod (402) penetrates through the top block (404) and extends to the outside of the mounting plate (207). The top rod (402) is slidably connected with the mounting plate (207). A compression spring (409) is connected between one end of one of the top blocks (404) and the inner side of the mounting plate (207). Driving grooves (407) are respectively arranged at the top and bottom of the two top blocks (404). Two symmetrical top plates (405) are respectively slidably connected inside the two ends of the mounting plate (207) through return springs (406). The top plates (405) are of a "T" - shaped structure. The opposite ends of the two groups of top plates (405) respectively extend into the inside of the chute (301) and contact the bottom of the guide block (305). The connections between the top plates (405) and the guide blocks (305) are both of a toothed structure. Guide wheels (408) are respectively rotatably connected at the opposite ends of the two groups of top plates (405). The guide wheels (408) contact the top blocks (404).

2. The resistance welding machine for steel plate processing according to claim 1, characterized in that: The driving groove (407) is of a trapezoidal structure. The side walls at both ends of the driving groove (407) are of an arc - shaped structure. A rubber block (403) is installed at one end of the top rod (402). The rubber block (4) is of a cylindrical structure. The diameter of the rubber block (403) is larger than the diameter of the top rod (402).

3. The resistance welding machine for steel plate processing according to claim 1, characterized in that: The dust - collecting mechanism (5) includes a housing (503). The housing (503) is installed at the bottom of the frame (1). The housing (503) is of a funnel - shaped structure. The top of the housing (503) extends to the bottom of the welding head (205). Two ventilation nets (504) are installed at the top of the housing (503). A dust - collecting pipe (502) is installed at the bottom of the housing (503). A dust collector (501) is installed at one end of the bottom of the frame (1). One end of the dust - collecting pipe (502) is connected to the dust collector (501).

4. The resistance welding machine for steel plate processing according to claim 3, characterized in that: The collection mechanism (6) includes a collection box (601). The collection box (601) is slidably connected to the inner side of the top of the dust - collecting pipe (502). A filter screen (603) is installed at the bottom of the collection box (601). One end of the collection box (601) extends to the outside of the dust - collecting pipe (502).

5. The resistance welding machine for steel plate processing according to claim 4, characterized in that: A handle (602) is installed on the outside of one end of the collection box (601). The handle (602) is of a "凵" - shaped structure. A sealing ring (604) is installed on the outside of one end of the collection box (601). The sealing ring (604) contacts the inner wall of the dust - collecting pipe (502).

6. The resistance welding machine for steel plate processing according to claim 3, characterized in that: The opening - closing mechanism (7) includes a connecting plate (702). The connecting plate (702) is installed on one side of the bottom of the housing (503). A sealing plate (703) is slidably connected inside the connecting plate (702). One end of the sealing plate (703) extends to the inner side of the bottom of the housing (503). A connecting pipe (701) is installed at the center of the outside of the connecting plate (702).

7. The resistance welding machine for steel plate processing according to claim 6, characterized in that: A sealing gasket (704) is installed at the other end of the sealing plate (703), and the sealing gasket (704) is slidably connected to the inside of the connecting plate (702) through the sealing plate (703).

8. A resistance welding machine for steel plate processing according to claim 1 or 6, characterized in that: The control mechanism (8) includes a piston (803), the piston (803) is slidably connected to the interior of the stopper (401), a compression spring (804) is connected between one side of the piston (803) and the interior of the stopper (401), one end of the stopper (401) is slidably connected to a pressure rod (801), one end of the pressure rod (801) extends to the interior of the stopper (401) and is fixedly connected to the piston (803), and the other end of the stopper (401) is installed with a conduit (802), one end of the conduit (802) extends to the interior of the frame (1) and is connected to the connecting pipe (701).

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