Welding device for leisure chair production

Abstract

The invention relates to a welding device for production of leisure chairs, belongs to the field of welding of leisure chairs, and aims to solve the problem that an existing welding device for production of leisure chairs cannot carry out pretreatment such as automatic and stable polishing and deburring, cleaning and degreasing and drying on the ends of pipes. The device comprises a device shell, a positioning butt joint assembly is installed in the device shell, a first servo motor is welded and fixed to the side end face of the device shell, the output end of the first servo motor is connected with a driving shaft, and a multifunctional processing assembly is installed in the device shell. According to the device, all the guide frames can be shifted through the guide rods, then the rotating shaft can be driven through the connecting frame to intermittently rotate by 90 degrees each time, and by means of intermittent rotation of the rotating shaft, the polishing plate, the flexible brush and the sponge plate can be driven through the connecting plate to gradually move to the two ends of the pipe; and integrated automatic treatment work such as polishing, deburring, cleaning and splash-proof agent coating at the butt joint port of the two pipes is achieved.

Description

Technical Field

[0001] The invention relates to a welding device for producing leisure chairs, belonging to the field of leisure chair welding. Background Art

[0002] A leisure chair is a chair designed to provide a comfortable sitting posture, usually used in leisure and relaxation occasions. There are many types of leisure chairs. During the production and processing of some longer leisure chairs, it is necessary to use a girth welding device to butt-weld the pipes for the leisure chairs. When welding the ends of the two pipes, the two pipes need to be clamped separately on the two clamps of the girth welding machine, and the ends of the pipes are made to collide with each other. The welding is performed by driving the pipe to rotate while the welding gun is fixed in position.

[0003] However, there are some problems in the working process of the existing welding devices for leisure chair production. For example, an automatic tracking welding device for the ring weld of a leisure chair pipe with publication number CN212496150U is improved on the basis of the existing equipment during work to avoid the deviation of the relative position of the ring weld and the welding gun and improve the welding quality. However, in the actual working process, it is unable to automatically and stably grind and remove burrs, clean and degrease, and dry the two ends of the pipes that need to be welded. Therefore, the staff needs to move the pipes to other equipment for surface treatment, which leads to reduced work efficiency and increased labor intensity. In addition, in the actual working process, the existing welding device for leisure chair production cannot conveniently and stably clamp, fix and dock the pipes that need to be welded, and thus cannot ensure the convenience and stability of the subsequent ring welding work, and has poor practicality. Therefore, we make improvements on this and propose a welding device for leisure chair production. Summary of the invention

[0004] (I) The technical problem to be solved by the present invention is that the existing welding devices for leisure chair production are unable to automatically and stably perform pre-treatment such as grinding and deburring, cleaning and degreasing, and drying on the ends of two pipes to be welded, and are unable to conveniently and stably clamp, fix, and dock the pipes to be welded.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned invention object, the present invention provides a welding device for leisure chair production, including a device shell, a positioning docking component is installed in the device shell, a first servo motor is welded and fixed on the side end face of the device shell, the output end of the first servo motor is connected to a driving shaft, the driving shaft is rotatably connected in the device shell, a multifunctional processing component is installed in the device shell, a first bevel gear is welded and fixed on the driving shaft, a second bevel gear is meshingly connected to the first bevel gear, a driven shaft is welded and fixed on the second bevel gear, an exhaust fan and a scraper rod are welded and fixed on the driven shaft, and a ventilator is welded and fixed on the bottom of the device shell, the ventilator A fixed mesh plate is welded and fixed on the top, and the fixed mesh plate is rotatably connected to the driven shaft, a connecting pipe is connected to the bottom side end of the ventilation cylinder, an electric heating wire is installed in the connecting pipe, the top of the connecting pipe is connected to the top of the device shell, the bottom of the ventilation cylinder is connected to a drain pipe, the top of the device shell is connected to a water inlet pipe, a second hydraulic rod is fixedly installed on the top of the device shell, the top of the second hydraulic rod is fixedly connected to a connecting plate, a welding gun is installed on the connecting plate, a through groove is penetrated through the side end of the device shell, a rubber plate is fixedly connected in the through groove, a protective door plate is installed on the device shell, and a support seat is welded and fixed to the bottom end surface of the device shell.

[0007] Wherein: the positioning docking assembly includes a first hydraulic rod, one end of the first hydraulic rod is installed and fixed on the inner side end surface of the device shell, the other end of the first hydraulic rod is fixedly connected to a mounting plate, the mounting plate is rotatably connected to a positioning cylinder through a bearing, a thread is provided on the middle outer wall of the positioning cylinder, a turntable is threadedly connected to the positioning cylinder, a limiting cylinder is welded and fixed on the side end surface of the turntable, a first spring is welded and fixed on the inner wall of the positioning cylinder, the other end of the first spring is welded and fixed to a clamping plate, one end of the clamping plate is fixedly connected to a rubber pad, the other end of the clamping plate is welded and fixed to a guide plate, and the guide plate is slidably connected to the positioning cylinder.

[0008] Among them: the first hydraulic rod is symmetrically distributed on both sides of the device shell, the first hydraulic rod corresponds to the positioning cylinder one by one through the mounting plate, the inner diameter of the limiting cylinder is larger than the outer diameter of the positioning cylinder, the cross-section of the clamping plate is arc-shaped, the clamping plates are distributed at equal angles in the positioning cylinder, the clamping plates correspond to the guide plates one by one, the cross-section of the guide plates is a right-angle trapezoid, a first pulley is welded and fixed on the positioning cylinder, a synchronous belt is connected to the first pulley, a second pulley is connected to the bottom of the synchronous belt, a sliding cylinder is welded and fixed on the second pulley, the sliding cylinder is rotatably connected to the mounting plate, a limiting rod is welded and fixed on the active shaft, the limiting rod penetrates and is slidably connected in the sliding cylinder, the cross-section of the limiting rod is rectangular, and the mounting plate corresponds to the limiting rod one by one through the sliding cylinder.

[0009] The cam is fixedly provided with a second cam which is fixed to the top of the cam and is provided with a second cam which is fixed to the top of the cam.

[0010] Wherein: a fixing frame is welded and fixed on the connecting plate, a first plug tube is welded and fixed in the fixing frame, the fixing frame is symmetrically distributed on both sides of the connecting plate, the first plug tube is symmetrically distributed on both sides inside the fixing frame, a second spring is welded and fixed in the first plug tube, the other end of the second spring is fixedly connected with a first rubber piston, the first rubber piston is slidably connected in the first plug tube, a first plug rod is fixedly connected to the first rubber piston, the first plug rod is slidably connected to the end of the first plug tube and the end of the fixing frame, a grinding plate is fixedly connected to the end of the first plug rod, a sliding groove is penetrated on the grinding plate and the fixing frame, a first air guide tube is connected to the first plug tube, the other end of the first air guide tube is connected to a transfer frame, the transfer frame is welded and fixed in the fixing frame, and the transfer frame is annular.

[0011] Wherein: the transfer frame is connected to a second air guide tube and a third air guide tube, the other end of the second air guide tube is connected to a second plug tube, a third spring is welded and fixed in the second plug tube, the other end of the third spring is fixedly connected to a second rubber piston, the second rubber piston is fixedly connected to a second plug rod, the second plug rod penetrates and is slidably connected in the second plug tube, the end of the second plug rod is fixedly connected to a first grinding rod, the other end of the third air guide tube is connected to a third plug tube, a fourth spring is welded and fixed in the third plug tube, the other end of the fourth spring is fixedly connected to a third rubber piston, the third rubber piston is slidably connected to the third plug Tube, a third plug rod is fixedly connected to the third rubber piston, the third plug rod is slidably connected in the third plug tube, the end of the third plug rod is fixedly connected to the second polishing rod, the first polishing rod and the second polishing rod are both slidably connected in the sliding groove, the second plug tube and the third plug tube are both fixedly connected to the inner wall of the fixed frame, the second plug tube and the third plug tube are symmetrically distributed on both sides of the fixed frame, the second plug tube corresponds to the first polishing rod one-to-one through the second plug rod on the second rubber piston, the third plug tube corresponds to the second polishing rod one-to-one through the third plug rod on the third rubber piston, and the first polishing rod and the second polishing rod are parallel to each other.

[0012] Wherein: a fixed plate and a liquid storage tank are welded and fixed on the connecting plate, and the fixed plate and the liquid storage tank are symmetrically distributed on both sides of the connecting plate; a flexible brush is fixedly connected to the fixed plate, and the flexible brushes are distributed on the fixed plate at equal angles; a conveying cylinder is fixedly connected to the side end of the liquid storage tank, a rubber hose is fixedly connected to the conveying cylinder, a through hole is penetrated through the rubber hose, a sponge plate is fixedly connected to the conveying cylinder, a double-axis motor is installed in the connecting plate, a screw rod is connected to the output end of the double-axis motor, and the screw rod is rotatably connected in the conveying cylinder, a feed pipe is connected to the liquid storage tank, and solenoid valves are installed on the feed pipe and the drain pipe, the conveying cylinders are symmetrically distributed on both sides of the liquid storage tank, and the conveying cylinders correspond to the screw rod and the sponge plate one by one respectively, the rubber hose is equidistantly distributed on the conveying cylinder, and the through holes are equidistantly distributed on the rubber hose.

[0013] Wherein: the ventilation duct is fixed in the middle part of the bottom of the device shell, the top surface of the fixed mesh plate, the top surface of the ventilation duct and the inner bottom surface of the device shell are flush, the fixed mesh plate is a large-aperture mesh plate, the connecting pipes are symmetrically distributed on both sides of the bottom of the ventilation duct, the electric heating wire is spiral, and the electric heating wires are equidistantly distributed in the connecting pipe.

[0014] Wherein: a filter plate is welded and fixed in the ventilation duct, a first feed chute is penetrated through the side end of the ventilation duct, a magnetic frame is fixedly connected to the side end surface of the ventilation duct, a collecting box is magnetically adsorbed and connected in the magnetic frame, a second feed chute is penetrated through the top side end of the collecting box, the driven shaft is connected to the middle part of the filter plate, the scraper rod is arc-shaped, the scraper rods are distributed on the driven shaft at equal angles, the bottom end surface of the scraper rod is in contact with the top end surface of the filter plate, the top end surface of the filter plate is flush with the bottom end surface of the first feed chute, the first feed chute is symmetrically distributed on both sides of the ventilation duct, the magnetic frames are symmetrically distributed on both sides of the ventilation duct, the magnetic frames correspond to the collecting box one by one, the outer wall of the collecting box is in contact with the inner wall of the magnetic frame, the side end surface of the collecting box is in contact with the side end surface of the ventilation duct, and the length and width of the second feed chute are respectively greater than the length and width of the first feed chute.

[0015] Among them: the water inlet pipe is symmetrically distributed on both sides of the welding gun, the welding gun is slidably connected to the top center of the device shell, the through groove is symmetrically distributed on both sides of the device shell, the rubber plate is fan-shaped, the rubber plate is distributed in the through groove at equal angles, adjacent rubber plates are fitted together, and the protective door plate is made of transparent material.

[0016] (III) Beneficial effects

[0017] The welding device for producing leisure chairs provided by the present invention has the following beneficial effects:

[0018] 1. Through the rotation of the thread of the set turntable, the clamping plates on each guide plate can be pushed to move toward the middle at the same time through the limit cylinder, thereby realizing convenient and stable clamping and fixing of the pipes used in the production of leisure chairs, thereby ensuring the convenience and stability of the subsequent butt welding of the pipes, and utilizing the drive of the first servo motor, the sliding cylinders and the limit rods on both sides of the active shaft can drive the positioning cylinders on both sides to rotate synchronously, thereby driving the two pipes to rotate synchronously, thereby ensuring the synchronization of the subsequent processing work at the ends of the two pipes, and utilizing the drive of the first hydraulic rod, the two pipes can be driven to automatically and stably butt-jointly process, thereby ensuring the stability and convenience of the subsequent butt ring welding of the pipes, and increasing the diversity and convenience of the use of the welding device.

[0019] 2. Through the continuous rotation of the rotating rod, each guide frame can be moved through the guide rod, and then the rotating shaft can be driven to rotate intermittently through the connecting frame, and each time it rotates 90°, the intermittent rotation of the rotating shaft can be used to drive the grinding plate, flexible brush and sponge plate to gradually move to the two ends of the pipe through the connecting plate, thereby realizing the integrated automatic processing of grinding, deburring, cleaning and anti-splash agent coating at the butt ports of the two pipes; by automatically completing the grinding and deburring of the inner and outer walls of the pipe port, the quality of the welding contact surface can be improved, ensuring uniform welds and stronger welding; by cleaning, oil or other contaminants on the surface of the pipe welding point can be removed, thereby improving the welding quality; at the same time, by anti-splash agent coating, a protective film can be formed in the welding area, thereby reducing oxidation and pollution of the parent material during welding, thereby further improving the welding quality; and the use diversity of the welding device is increased, while the working efficiency of the welding device is effectively improved.

[0020] 3. Through the continuous rotation of the exhaust fan, the dust and impurities generated by grinding can be sucked out, and the impurities generated by grinding can be filtered through the filter plate, and the waste water after cleaning can be filtered; with the continuous rotation of the scraper rod, the filtered dust and impurities can be pushed into the collection box through the first feed chute and the second feed chute, thereby realizing the automatic collection of dust and impurities and ensuring that the filter plate will not be blocked during continuous operation. At the same time, the magnetism of the magnetic frame can be used to conveniently complete the disassembly and installation of the collection box, so that the collected dust and impurities can be conveniently transferred and processed, further improving the working efficiency of the welding device.

[0021] 4. Through the continuous rotation of the exhaust fan, the ventilation tube and the connecting pipe can stably complete the circulation of air inside the device. During the air circulation process, under the heating effect of each electric heating wire, the pipes after cleaning and anti-splash agent coating can be automatically and efficiently dried, ensuring the convenience and efficiency of subsequent welding of the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection structure between the sliding cylinder and the limiting rod of the present invention;

[0025] Figure 3 It is a schematic diagram of the connection structure between the liquid storage tank and the feed pipe of the present invention;

[0026] Figure 4 It is a schematic diagram of the main cross-sectional structure of the housing of the device of the present invention;

[0027] Figure 5 It is a schematic diagram of the main cross-sectional structure of the positioning tube of the present invention;

[0028] Figure 6 It is a schematic diagram of the side section structure of the positioning tube of the present invention;

[0029] Figure 7 The present invention Figure 4 The enlarged structural diagram at A in the middle;

[0030] Figure 8 It is a schematic diagram of the side view structure of the connection frame of the present invention;

[0031] Fig. 9 It is a schematic diagram of the main cross-sectional structure of the fixing frame of the present invention;

[0032] Fig.10 This is a schematic diagram of the main cross-sectional structure of the first plug tube of the present invention;

[0033] Fig.11 It is a schematic diagram of the side view structure of the connection plate of the present invention;

[0034] Fig.12 It is a schematic diagram of the side structure of the fixing frame of the present invention;

[0035] Fig.13 It is a schematic diagram of the side section structure of the fixing frame of the present invention;

[0036] Fig.14 It is a schematic diagram of the side section structure of the transfer frame of the present invention;

[0037] Fig.15 It is a schematic diagram of the top-sectional structure of the liquid storage tank of the present invention;

[0038] Fig.16 This is a schematic diagram of the main cross-sectional structure of the ventilator of the present invention;

[0039] Fig.17 It is a schematic diagram of the top-sectional structure of the ventilator of the present invention.

[0040] Indications in the figure: 1. Device housing; 2. Positioning docking assembly; 201. First hydraulic rod; 202. Mounting plate; 203. Positioning cylinder; 204. Turntable; 205. Limiting cylinder; 206. First spring; 207. Clamping plate; 208. Rubber pad; 209. Guide plate; 210. First pulley; 211. Synchronous belt; 212. Second pulley; 213. Sliding cylinder; 214. Limiting rod; 3. First servo motor; 4. Driving shaft; 5. Multifunctional processing assembly; 501. Fixing plate; 502. second servo motor; 503, rotating rod; 504, guide rod; 505, first limit plate; 506, rotating shaft; 507, connecting frame; 508, guide frame; 509, second limit plate; 510, connecting plate; 511, fixing frame; 512, first plug tube; 513, second spring; 514, first rubber piston; 515, first plug rod; 516, grinding plate; 517, sliding groove; 518, first air pipe; 519, transfer frame; 520, second air pipe; 521, second plug tube; 522, third spring; 523, second rubber piston; 524, second plug rod; 525, first grinding rod; 526, third air guide tube; 527, third plug tube; 528, fourth spring; 529, third rubber piston; 530, third plug rod; 531, second grinding rod; 532, fixed plate; 533, flexible brush; 534, liquid storage tank; 535, delivery cylinder; 536, rubber hose; 537, through hole; 538, sponge board; 539, dual-axis motor; 540, screw rod; 541 , feed pipe; 6, first bevel gear; 7, second bevel gear; 8, driven shaft; 9, exhaust fan; 10, scraper rod; 11, fixed mesh plate; 12, ventilator; 13, filter plate; 14, first feed chute; 15, magnetic frame; 16, collection box; 17, second feed chute; 18, connecting pipe; 19, electric heating wire; 20, drain pipe; 21, water inlet pipe; 22, second hydraulic rod; 23, connecting plate; 24, welding gun; 25, through groove; 26, rubber plate; 27, protective door plate; 28, support seat. DETAILED DESCRIPTION

[0041] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples of the specification. The following examples are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0042] Embodiment 1:

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 and Fig.17 As shown, the present embodiment proposes a welding device for leisure chair production, comprising a device shell 1, a positioning docking component 2 is installed in the device shell 1, a first servo motor 3 is welded and fixed on the side end surface of the device shell 1, the output end of the first servo motor 3 is connected to a driving shaft 4, the driving shaft 4 is rotatably connected in the device shell 1, a multifunctional processing component 5 is installed in the device shell 1, a first bevel gear 6 is welded and fixed on the driving shaft 4, a second bevel gear 7 is meshed and connected to the first bevel gear 6, a driven shaft 8 is welded and fixed on the second bevel gear 7, an exhaust fan 9 and a scraper rod 10 are welded and fixed on the driven shaft 8, a ventilation tube 12 is welded and fixed to the bottom of the device shell 1, a fixed mesh plate 11 is welded and fixed to the top of the ventilation tube 12, the fixed mesh plate 11 is rotatably connected to the driven shaft 8, a connecting pipe 18 is connected to the bottom side end of the ventilation tube 12, an electric heating wire 19 is installed in the connecting pipe 18, the top of the connecting pipe 18 is connected to the top of the device shell 1, and the bottom of the ventilation tube 12 is connected to A drainage pipe 20, a water inlet pipe 21 is connected to the top of the device shell 1, a second hydraulic rod 22 is fixedly installed on the top of the device shell 1, a connecting plate 23 is fixedly connected to the top of the second hydraulic rod 22, a welding gun 24 is installed on the connecting plate 23, a through groove 25 is penetrated through the side end of the device shell 1, a rubber plate 26 is fixedly connected in the through groove 25, a protective door plate 27 is installed on the device shell 1, and a support seat 28 is welded and fixed on the bottom end surface of the device shell 1. The positioning docking component 2 can be used to conveniently and stably clamp and fix the pipes used in the production of leisure chairs, thereby ensuring the convenience and stability of the subsequent docking welding of the pipes, and can drive the two pipes to automatically and stably dock; and combined with the multifunctional processing component 5, it can automatically and stably complete the integrated processing work such as grinding, deburring, cleaning and anti-splashing agent coating at the docking ports of the two pipes, further improving the welding quality; and increasing the diversity of use of the welding device, while effectively improving the working efficiency of the welding device.

[0044] Embodiment 2:

[0045] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0046] like Figure 4 , Figure 5 and Figure 6As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the positioning docking assembly 2 includes a first hydraulic rod 201, one end of the first hydraulic rod 201 is fixedly mounted on the inner side end surface of the device housing 1, the other end of the first hydraulic rod 201 is fixedly connected to a mounting plate 202, the mounting plate 202 is rotatably connected to a positioning cylinder 203 through a bearing, a thread is provided on the middle outer wall of the positioning cylinder 203, a turntable 204 is threadedly connected to the positioning cylinder 203, a limiting cylinder 205 is welded and fixed on the side end surface of the turntable 204, and a limiting cylinder 205 is welded and fixed on the inner wall of the positioning cylinder 203 There is a first spring 206, and a clamping plate 207 is welded and fixed to the other end of the first spring 206. A rubber pad 208 is fixedly connected to one end of the clamping plate 207, and a guide plate 209 is welded and fixed to the other end of the clamping plate 207. The guide plate 209 is slidably connected to the positioning cylinder 203. By rotating the thread of the turntable 204, the clamping plates 207 on each guide plate 209 can be pushed to move toward the middle at the same time through the limiting cylinder 205, so that the pipes used in the production of leisure chairs can be clamped and fixed conveniently and stably, thereby ensuring the convenience and stability of the subsequent butt welding of the pipes.

[0047] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first hydraulic rod 201 is symmetrically distributed on both sides of the device housing 1, the first hydraulic rod 201 corresponds to the positioning cylinder 203 one by one through the mounting plate 202, the inner diameter of the limiting cylinder 205 is larger than the outer diameter of the positioning cylinder 203, the cross section of the clamping plate 207 is in an arc shape, the clamping plates 207 are equiangularly distributed in the positioning cylinder 203, the clamping plates 207 correspond to the guide plates 209 one by one, the cross section of the guide plates 209 is a right-angled trapezoid, the positioning cylinder 203 is welded and fixed with a first pulley 210, the first pulley 210 is connected to a synchronous belt 211, the bottom of the synchronous belt 211 is connected to a second pulley 212, and the second pulley 212 is welded and fixed with a sliding cylinder 213 The sliding cylinder 213 is rotatably connected with the mounting plate 202, and a limiting rod 214 is welded and fixed on the driving shaft 4. The limiting rod 214 penetrates and is slidably connected in the sliding cylinder 213. The cross section of the limiting rod 214 is rectangular. The mounting plate 202 corresponds one-to-one with the limiting rod 214 through the sliding cylinder 213. By driving the first servo motor 3, the sliding cylinder 213 and the limiting rod 214 on both sides of the driving shaft 4 can drive the positioning cylinders 203 on both sides to rotate synchronously, and then drive the two pipes to rotate synchronously, thereby ensuring the synchronization of subsequent processing work on the ends of the two pipes, and by driving the first hydraulic rod 201, the two pipes can be driven to automatically and stably dock. The stability and convenience of the subsequent butt welding of the pipes is ensured.

[0048] like Figure 4, Figure 7 and Figure 8 As shown, as a preferred embodiment, on the basis of the above method, further, the multifunctional processing component 5 includes a fixed plate 501, the fixed plate 501 is rotatably connected with the driving shaft 4, the bottom end of the fixed plate 501 is welded and fixed to the top surface of the fixed mesh plate 11, a second servo motor 502 is welded and fixed to the fixed plate 501, a rotating rod 503 is welded and fixed to the output shaft of the second servo motor 502, a guide rod 504 is welded and fixed to one end of the rotating rod 503, a first limiting plate 505 is welded and fixed to the other end of the rotating rod 503, a rotating shaft 506 is rotatably connected to the fixed plate 501, a connecting frame 507 and a connecting plate 510 are welded and fixed to the rotating shaft 506, a guide frame 508 and a second limiting plate 509 are welded and fixed in the connecting frame 507, and the fixed plates 501 are symmetrically distributed on the connecting frame 507. On both sides of the bottom of the plate 510, the fixed plate 501 corresponds to the connecting frame 507 one by one through the rotating shaft 506, and four guide frames 508 and four second limit plates 509 are provided. The four guide frames 508 and the four second limit plates 509 are evenly distributed in the connecting frame 507, and the guide frames 508 and the second limit plates 509 are distributed alternately. The side end surface of the first limit plate 505 and the side end surface of the second limit plate 509 are both arc-shaped. By continuously rotating the rotating rod 503, each guide frame 508 can be moved through the guide rod 504, and then the rotating shaft 506 can be driven to rotate intermittently through the connecting frame 507, and each time it rotates 90°. By intermittently rotating the rotating shaft 506, the integrated processing work such as grinding, deburring, cleaning and anti-splash agent coating at the docking ports of the two pipes can be gradually completed.

[0049] like Figure 4 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a fixing frame 511 is welded and fixed on the connecting plate 510, a first plug tube 512 is welded and fixed in the fixing frame 511, the fixing frame 511 is symmetrically distributed on both sides of the connecting plate 510, the first plug tube 512 is symmetrically distributed on both sides inside the fixing frame 511, a second spring 513 is welded and fixed in the first plug tube 512, the other end of the second spring 513 is fixedly connected to a first rubber piston 514, the first rubber piston 514 is slidably connected in the first plug tube 512, a first plug rod 515 is fixedly connected to the first rubber piston 514, the first plug rod 515 penetrates and is slidably connected to the end of the first plug tube 512 and the end of the fixing frame 511, and the end of the first plug rod 515 is fixed A grinding plate 516 is connected, and a sliding groove 517 is provided on the grinding plate 516 and the fixed frame 511. A first air pipe 518 is connected to the first plug tube 512, and the other end of the first air pipe 518 is connected to a transfer frame 519, which is welded and fixed in the fixed frame 511. The transfer frame 519 is annular, and a second air pipe 520 and a third air pipe 526 are connected to the transfer frame 519. The other end of the second air pipe 520 is connected to a second plug tube 521, and a third spring 522 is welded and fixed in the second plug tube 521. The other end of the third spring 522 is fixedly connected to a second rubber piston 523, and a second plug rod 524 is fixedly connected to the second rubber piston 523. The second plug rod 524 penetrates and slides and is connected to the second plug tube 5 21, the end of the second plug rod 524 is fixedly connected to the first grinding rod 525, the other end of the third air guide pipe 526 is connected to the third plug tube 527, a fourth spring 528 is welded and fixed in the third plug tube 527, the other end of the fourth spring 528 is fixedly connected to the third rubber piston 529, the third rubber piston 529 is slidably connected in the third plug tube 527, the third rubber piston 529 is fixedly connected to the third plug rod 530, the third plug rod 530 penetrates and is slidably connected in the third plug tube 527, the end of the third plug rod 530 is fixedly connected to the second grinding rod 531, the first grinding rod 525 and the second grinding rod 531 are both slidably connected in the sliding groove 517, and the second plug tube 521 and the third plug tube 527 are both fixedly connected to the fixing frame 511 On the inner wall, the second plug tube 521 and the third plug tube 527 are symmetrically distributed on both sides of the fixed frame 511. The second plug tube 521 corresponds to the first polishing rod 525 one by one through the second plug rod 524 on the second rubber piston 523, and the third plug tube 527 corresponds to the second polishing rod 531 one by one through the third plug rod 530 on the third rubber piston 529. The first polishing rod 525 and the second polishing rod 531 are parallel to each other. Under the joint action of the first polishing rod 525, the second polishing rod 531 and the polishing plate 516, the inner and outer walls and the end face of the pipe connection port can be polished and deburred at the same time, and by automatically completing the polishing and deburring of the inner and outer walls of the pipe port, the quality of the welding contact surface can be improved, ensuring that the weld is uniform and the welding is more firm.

[0050] like Figure 3 , Fig.11 and Fig.15 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, a fixed plate 532 and a liquid storage tank 534 are welded and fixed on the connecting plate 510, and the fixed plate 532 and the liquid storage tank 534 are symmetrically distributed on both sides of the connecting plate 510, and a flexible brush 533 is fixedly connected to the fixed plate 532, and the flexible brushes 533 are distributed on the fixed plate 532 at equal angles, and a conveying cylinder 535 is fixedly connected to the side end of the liquid storage tank 534, and a rubber hose 536 is fixedly connected to the conveying cylinder 535, and a through hole 537 is opened on the rubber hose 536, and a sponge plate 538 is fixedly connected to the conveying cylinder 535, and a double-axis motor 539 is installed in the connecting plate 510, and a screw rod 540 is connected to the output end of the double-axis motor 539, and the screw rod 540 rotates to connect It is connected to the conveying cylinder 535, and a feed pipe 541 is connected to the liquid storage tank 534. Solenoid valves are installed on the feed pipe 541 and the drain pipe 20. The conveying cylinders 535 are symmetrically distributed on both sides of the liquid storage tank 534. The conveying cylinders 535 correspond to the spiral rods 540 and the sponge plates 538 one by one. The rubber hoses 536 are equidistantly distributed on the conveying cylinder 535, and the through holes 537 are equidistantly distributed on the rubber hoses 536. The oil or other pollutants on the surface of the pipe welding can be removed by cleaning to improve the welding quality. At the same time, a protective film can be formed in the welding area by coating with a splash-proof agent to reduce the oxidation and pollution of the base material during welding, thereby further improving the welding quality. It also increases the diversity of use of the welding device and effectively improves the working efficiency of the welding device.

[0051] like Figure 4 , Fig.11 and Fig.16 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the ventilator 12 is fixed in the middle part of the bottom of the device housing 1, the top surface of the fixed mesh plate 11, the top surface of the ventilator 12 and the inner bottom surface of the device housing 1 are flush, the fixed mesh plate 11 is a large-aperture mesh plate, the connecting pipes 18 are symmetrically distributed on both sides of the bottom of the ventilator 12, the electric heating wires 19 are spiral-shaped, and the electric heating wires 19 are equidistantly distributed in the connecting pipes 18. During the continuous operation of the exhaust fan 9, the ventilator 12 and the connecting pipe 18 can stably complete the circulation of air inside the device, and during the air circulation process, under the heating action of each electric heating wire 19, the pipes after cleaning and coating with splash-proof agent can be automatically and efficiently dried, thereby ensuring the convenience and efficiency of subsequent welding of the pipes.

[0052] like Figure 4 , Fig.16 and Fig.17As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a filter plate 13 is welded and fixed in the ventilation tube 12, a first feed chute 14 is penetrated through the side end of the ventilation tube 12, a magnetic frame 15 is fixedly connected to the side end surface of the ventilation tube 12, a collection box 16 is magnetically adsorbed and connected in the magnetic frame 15, a second feed chute 17 is penetrated through the top side end of the collection box 16, a driven shaft 8 is connected to the middle part of the filter plate 13, the scraper rod 10 is arc-shaped, the scraper rod 10 is distributed on the driven shaft 8 at equal angles, the bottom end surface of the scraper rod 10 is in contact with the top end surface of the filter plate 13, the top end surface of the filter plate 13 is flush with the bottom end surface of the first feed chute 14, the first feed chute 14 is symmetrically distributed on both sides of the ventilation tube 12, the magnetic frames 15 are symmetrically distributed on both sides of the ventilation tube 12, the magnetic frames 15 correspond one by one to the collection box 16, and the collection The outer wall of the box 16 fits with the inner wall of the magnetic frame 15, the side end face of the collection box 16 fits with the side end face of the ventilator 12, the length and width of the second discharge chute 17 are respectively greater than the length and width of the first discharge chute 14, and the continuous rotation of the exhaust fan 9 can suck out the dust and impurities generated by grinding, and the impurities generated by grinding can be filtered through the filter plate 13, and the waste water after cleaning can be filtered; with the continuous rotation of the scraper rod 10, the filtered dust and impurities can be pushed into the collection box 16 through the first discharge chute 14 and the second discharge chute 17 to complete the automatic collection work, ensuring that the filter plate 13 will not be blocked during continuous operation, and at the same time, the magnetism of the magnetic frame 15 can be used to conveniently complete the disassembly and installation of the collection box 16, so that the collected dust and impurities can be conveniently transported.

[0053] like Figure 1 and Figure 4 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the water inlet pipe 21 is symmetrically distributed on both sides of the welding gun 24, the welding gun 24 penetrates and is slidably connected to the top center of the device housing 1, the through grooves 25 are symmetrically distributed on both sides of the device housing 1, the rubber plates 26 are fan-shaped, and the rubber plates 26 are distributed in the through grooves 25 at equal angles. Adjacent rubber plates 26 fit each other, and the protective door plates 27 are made of transparent material. By inserting the pipe into the through grooves 25 on both sides of the device housing 1 and passing through the positioning cylinder 203, the connection between the pipe and the device housing 1 can be simply sealed by each rubber plate 26 to ensure the stability of the subsequent air circulation flow.

[0054] Embodiment 3:

[0055] The schemes in Example 1 and Example 2 are further introduced below in combination with specific working methods, as described below for details:

[0056] Specifically, when the welding device for leisure chair production is used: first, the staff can insert the two pipes that need to be butt-welded into the through grooves 25 on both sides of the device shell 1 respectively, and pass them through the positioning tube 203. At this time, the connection between the pipe and the device shell 1 can be simply sealed through each rubber plate 26 to ensure the stability of the subsequent air circulation flow. Then the staff can push the pipe on one side to make its end contact with the grinding plate 516, and then continue to push the pipe. Under the pushing action of the pipe, the grinding plate 516 can be pushed to move toward the fixed frame 511 on the connecting plate 510. Under the movement action of the grinding plate 516, the first rubber piston 514 can be pushed to move into the corresponding first plug tube 512 through the first plug rods 515 on both sides. Under the movement action of the first rubber piston 514, the air in the first plug tubes 512 on both sides can be pushed into the transfer frame 519 through the first air guide pipe 518. , at this time, the excess air inside the transfer frame 519 can enter the corresponding second plug tube 521 through the second air guide pipes 520 on both sides. At this time, under the action of air pressure, the first grinding rod 525 on the second plug rod 524 can be pushed to move toward the outer wall of the pipe through the second rubber piston 523, until the first grinding rods 525 on both sides are tightly fitted with the outer wall of the pipe, and then the excess air inside the transfer frame 519 can enter the corresponding third plug tube 527 through the third air guide pipes 526 on both sides. Similarly, under the action of air pressure, the second grinding rod 531 on the third plug rod 530 can be pushed to move toward the inner wall of the pipe through the third rubber piston 529, until the second grinding rods 531 on both sides are tightly fitted with the inner wall of the pipe. At this time, the first grinding rods 525 on both sides are tightly fitted with the outer wall of the pipe, the second grinding rods 531 on both sides are tightly fitted with the inner wall of the pipe, and the grinding plate 516 is tightly fitted with the end face of the pipe;

[0057] Then another staff member can open the protective door panel 27 on the device housing 1 and rotate the turntable 204 on the positioning cylinder 203. At this time, under the action of the threaded rotation of the turntable 204, the limiting cylinder 205 can be pushed to move toward the guide plate 209. Under the action of the movement of the limiting cylinder 205, by contacting with the inclined surface of the guide plate 209, each guide plate 209 can be pushed to move into the positioning cylinder 203 at the same time, and then each clamping plate 207 can be pushed to move into the positioning cylinder 203 at the same time. With the rubber pad 208, the pipe for leisure chair production can be conveniently and stably clamped and fixed; then, through the same operation, the close fit and clamping and fixing work between the pipe on the other side and the first grinding rod 525, the second grinding rod 531 and the grinding plate 516 can be completed. After the pipe is clamped stably, the protective door panel 27 can be closed;

[0058] After the pipes on both sides are clamped stably, the staff can drive the first servo motor 3. Under the driving action of the first servo motor 3, the limiting rod 214 can be driven to rotate through the driving shaft 4, and then the second pulley 212 on the sliding cylinder 213 can be driven. At this time, the second pulley 212 can drive the positioning cylinder 203 on the first pulley 210 to rotate through the synchronous belt 211, and then the clamped and fixed pipe can be driven to rotate synchronously. At this time, during the continuous rotation of the positioning cylinder 203, under the joint action of the first grinding rod 525, the second grinding rod 531 and the grinding plate 516, the inner and outer walls and end faces of the pipe connection port can be polished and deburred at the same time. In the rotation process of the driving shaft 4, the driven shaft 8 on the second bevel gear 7 can be driven to rotate automatically through the first bevel gear 6, and then the exhaust fan 9 can be driven to rotate stably inside the ventilator 12. Under the continuous rotation of the exhaust fan 9, the air inside the device housing 1 can be continuously sucked through the ventilator 12, and the sucked air is Under the filtering effect of the filter plate 13, the dust and impurities are transported to the upper part of the device housing 1 again through the connecting pipe 18 to complete the circulation of air inside the device. During the air circulation process, the dust and impurities generated by grinding can be sucked and filtered through the ventilator 12 and the filter plate 13, and during the rotation of the driven shaft 8, each scraper rod 10 can be driven to rotate stably, so that the dust and impurities filtered on the filter plate 13 can be moved synchronously. At this time, under the action of centrifugal force, the dust and impurities can be pushed into the collection box 16 through the first discharge chute 14 and the second discharge chute 17 during the movement to complete the automatic collection work. After the device is finished working, using the magnetism of the magnetic frame 15, the staff only needs to pull the collection box 16 outward to conveniently complete the disassembly of the collection box 16. Similarly, only the collection box 16 needs to be snapped into the magnetic frame 15, and the magnetic absorption can be used to conveniently complete the magnetic absorption installation of the collection box 16. The collection box 16 can be disassembled and installed by disassembling and installing, so that the collected dust and impurities can be conveniently transported and processed.

[0059] After the grinding work on the end of the pipe is completed, the staff can drive the first hydraulic rods 201 on both sides. Under the driving action of the first hydraulic rods 201 on both sides, the corresponding positioning cylinders 203 can be driven to move to the side through the mounting plate 202, and then the corresponding pipes can be driven to move away from the grinding plate 516. At this time, the sliding cylinder 213 moves synchronously with the mounting plate 202, and the sliding cylinder 213 slides within the upper limit of the limit rod 214 without affecting the connection and driving relationship between the sliding cylinder 213 and the limit rod 214. After the pipe moves away from the grinding plate 516, it moves in the second Under the elastic action of the spring 513, the first plug rod 515 on the first rubber piston 514 can drive the grinding plate 516 to move and reset. Similarly, under the elastic action of the third spring 522, the second plug rod 524 on the second rubber piston 523 can drive the first grinding rod 525 to move and reset. Under the elastic action of the fourth spring 528, the third plug rod 530 on the third rubber piston 529 can drive the second grinding rod 531 to move and reset. Manual adjustment of the fit and manual reset are not required, ensuring the convenience and stability of the next pipe grinding work.

[0060] Then the staff can drive the second servo motor 502 on the fixed plate 501. Under the driving action of the second servo motor 502, the guide rod 504 at one end and the first limit plate 505 at the other end can be driven to perform circular motion synchronously through the rotating rod 503. During the continuous circular motion of the guide rod 504, it can automatically move into the guide frame 508 in the connecting frame 507, and the connecting frame 507 on the rotating shaft 506 is automatically rotated by the guide frame 508. When the guide rod 504 moves away from the guide frame 508, the first limit plate 505 at the other end of the rotating rod 503 moves to fit with the second limit plate 509, completing the automatic limit of the connecting frame 507, preventing the connecting frame 507 from shaking, and then the guide rod 504 moves to the next guide frame 508. This reciprocating process can automatically complete the intermittent rotation of the connecting frame 507, and each time it rotates 90°, the intermittent rotation of the rotating shaft 506 can drive the connecting plate 510 to perform synchronous intermittent rotation.

[0061] Under the intermittent rotation of the connecting plate 510, the fixed plate 532 can be driven to move to the top, at which time the driving of the second servo motor 502 can be stopped, and then the first hydraulic rods 201 on both sides are used to drive the pipes on both sides to move to contact with the flexible brushes 533 on the fixed plate 532 through the same operation. At the same time, the cleaning water is sprayed through the water inlet pipe 21, and the continuous rotation of the pipe can automatically complete the cleaning process at the pipe port. The waste water after cleaning is also filtered through the filter plate 13 in the ventilation tube 12, and the filtered waste water is discharged through the drain pipe 20;

[0062] After the pipe is cleaned, the second servo motor 502 can be driven again, thereby driving the connecting plate 510 to rotate 90° clockwise again. At this time, no parts are in contact with the end of the pipe. In combination with the above, it can be seen that the rotation of the pipe is driven by the driving shaft 4, and during the rotation of the driving shaft 4, the driven shaft 8 on the second bevel gear 7 can be driven to rotate automatically through the first bevel gear 6, thereby driving the exhaust fan 9 to rotate stably inside the ventilator 12. Under the continuous rotation of the exhaust fan 9, the air inside the device housing 1 can be continuously sucked through the ventilator 12, and the sucked air is filtered by the filter plate 13 and transported to the upper part of the device housing 1 through the connecting pipe 18 again, completing the circulation of the air inside the device. During the circulation of the air, it can be heated by the various electric heating wires 19 inside the connecting pipe 18, and the heated air can be used to dry the end of the pipe during the rotation process.

[0063] After the pipe is dried, the connecting plate 510 is rotated 90° clockwise again. At this time, the connecting plate 510 can drive the sponge plate 538 to contact the outer wall of the end of the pipe. At this time, under the driving action of the dual-axis motor 539, the spiral rod 540 can be driven to rotate stably inside the conveying cylinder 535, so that the splash-proof agent in the liquid storage tank 534 can be stably conveyed to the rubber hose 536 on the conveying cylinder 535, and evenly conveyed to various places inside the sponge plate 538 through the various through holes 537 on the rubber hose 536. Combined with the continuous Rotate, the outer wall of the end of the pipe can be automatically coated by the sponge plate 538, and a protective film can be formed in the welding area by coating the anti-splash agent to reduce the oxidation and pollution of the base material during welding. After the coating work is completed, the output shaft of the second servo motor 502 can be driven to rotate in the opposite direction. Under the reverse rotation of the output shaft of the second servo motor 502, the connecting plate 510 can rotate 90° counterclockwise. At this time, the connecting plate 510 will not block the subsequent docking of the pipe. At the same time, the end of the pipe is dried again;

[0064] After the pipe is coated and dried, the first hydraulic rods 201 on both sides can be driven again. Under the driving action of the first hydraulic rods 201 on both sides, the corresponding positioning cylinders 203 can be driven to move toward the middle through the mounting plate 202, so as to drive the pipes on both sides to automatically dock. Then, through the driving of the second hydraulic rod 22, the working height of the welding gun 24 on the connecting plate 23 can be conveniently adjusted. With the rotation of the pipes on both sides, the butt welding of the pipes can be automatically completed. After the welding work is completed, the staff can open the protective door plate 27 on the device housing 1 and reversely rotate the turntable 204 on the positioning cylinder 203. Under the reverse rotation of the turntable 204, the limiting cylinder 205 can be driven to move away from each guide plate 209. At this time, under the elastic action of the first spring 206, each clamping plate 207 can be driven to move away from the pipe and move to reset, ensuring the convenience of the next pipe clamping work. Then, the staff only needs to pull out the welded pipe from one end to make it move away from the device housing 1 to conveniently complete the material unloading work.

[0065] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A welding device for leisure chair production, comprising a device housing (1), characterized in that: A positioning docking assembly (2) is installed in the device housing (1); a first servo motor (3) is welded and fixed on the side end surface of the device housing (1); an output end of the first servo motor (3) is connected to a driving shaft (4); the driving shaft (4) is rotatably connected in the device housing (1); a multifunctional processing assembly (5) is installed in the device housing (1); a first bevel gear (6) is welded and fixed on the driving shaft (4); a second bevel gear (7) is meshed and connected to the first bevel gear (6); a driven shaft (8) is welded and fixed on the second bevel gear (7); an exhaust fan (9) and a scraper rod (10) are welded and fixed on the driven shaft (8); a ventilator (12) is welded and fixed on the bottom of the device housing (1); a fixed mesh plate (11) is welded and fixed on the top of the ventilator (12); the fixed mesh plate (11) and the driven shaft (8) are connected by a screw connection. The bottom side end of the ventilation cylinder (12) is connected with a connecting pipe (18), an electric heating wire (19) is installed in the connecting pipe (18), the top of the connecting pipe (18) is connected to the top of the device housing (1), the bottom of the ventilation cylinder (12) is connected with a drain pipe (20), the top of the device housing (1) is connected with a water inlet pipe (21), the top of the device housing (1) is fixedly installed with a second hydraulic rod (22), the top of the second hydraulic rod (22) is fixedly connected with a connecting plate (23), a welding gun (24) is installed on the connecting plate (23), a through groove (25) is penetrated through the side end of the device housing (1), a rubber plate (26) is fixedly connected in the through groove (25), a protective door plate (27) is installed on the device housing (1), and a support seat (28) is welded and fixed on the bottom end surface of the device housing (1).

2. A welding device for leisure chair production according to claim 1, characterized in that: The positioning docking assembly (2) comprises a first hydraulic rod (201), one end of the first hydraulic rod (201) is fixedly mounted on the inner side end surface of the device housing (1), the other end of the first hydraulic rod (201) is fixedly connected to a mounting plate (202), the mounting plate (202) is rotatably connected to a positioning cylinder (203) via a bearing, a thread is provided on the middle outer wall of the positioning cylinder (203), a rotating disk (204) is threadedly connected to the positioning cylinder (203), and the A limiting cylinder (205) is welded and fixed on the side end surface of the rotating disk (204); a first spring (206) is welded and fixed on the inner wall of the positioning cylinder (203); a clamping plate (207) is welded and fixed on the other end of the first spring (206); a rubber pad (208) is fixedly connected to one end of the clamping plate (207); a guide plate (209) is welded and fixed to the other end of the clamping plate (207); and the guide plate (209) penetrates and is slidably connected to the positioning cylinder (203).

3. A welding device for leisure chair production according to claim 2, characterized in that: The first hydraulic rods (201) are symmetrically distributed on both sides of the device housing (1); the first hydraulic rods (201) correspond to the positioning cylinder (203) one by one through the mounting plate (202); the inner diameter of the limiting cylinder (205) is larger than the outer diameter of the positioning cylinder (203); the cross section of the clamping plate (207) is in the shape of an arc; the clamping plates (207) are distributed in the positioning cylinder (203) at equal angles; the clamping plates (207) correspond to the guide plates (209) one by one; the cross section of the guide plates (209) is in the shape of a right-angled trapezoid; a first pulley (210) is welded and fixed to the positioning cylinder (203); ), the first pulley (210) is connected to a synchronous belt (211), the bottom of the synchronous belt (211) is connected to a second pulley (212), a sliding cylinder (213) is welded and fixed to the second pulley (212), the sliding cylinder (213) is rotatably connected to the mounting plate (202), a limiting rod (214) is welded and fixed to the driving shaft (4), the limiting rod (214) penetrates and is slidably connected in the sliding cylinder (213), the cross section of the limiting rod (214) is rectangular, and the mounting plate (202) corresponds to the limiting rod (214) one by one through the sliding cylinder (213).

4. The welding device for leisure chair production according to claim 1, characterized in that: The multifunctional processing assembly (5) comprises a fixed plate (501), the fixed plate (501) is rotatably connected to the driving shaft (4), the bottom end of the fixed plate (501) is welded and fixed to the top surface of the fixed mesh plate (11), a second servo motor (502) is welded and fixed to the fixed plate (501), a rotating rod (503) is welded and fixed to the output shaft of the second servo motor (502), a guide rod (504) is welded and fixed to one end of the rotating rod (503), a first limiting plate (505) is welded and fixed to the other end of the rotating rod (503), a rotating shaft (506) is rotatably connected to the fixed plate (501), and a connecting frame (506) is welded and fixed to the rotating shaft (506). 07) and a connecting plate (510), a guide frame (508) and a second limit plate (509) are welded and fixed in the connecting frame (507), the fixed plates (501) are symmetrically distributed on both sides of the bottom of the connecting plate (510), the fixed plates (501) correspond one-to-one with the connecting frame (507) through a rotating shaft (506), four guide frames (508) and four second limit plates (509) are each provided, the four guide frames (508) and the four second limit plates (509) are evenly distributed in the connecting frame (507), the guide frames (508) and the second limit plates (509) are alternately distributed, and the side end faces of the first limit plate (505) and the side end faces of the second limit plate (509) are both arc-shaped.

5. A welding device for leisure chair production according to claim 4, characterized in that: A fixing frame (511) is welded and fixed on the connecting plate (510), a first plug tube (512) is welded and fixed inside the fixing frame (511), the fixing frame (511) is symmetrically distributed on both sides of the connecting plate (510), the first plug tube (512) is symmetrically distributed on both sides inside the fixing frame (511), a second spring (513) is welded and fixed inside the first plug tube (512), the other end of the second spring (513) is fixedly connected to a first rubber piston (514), the first rubber piston (514) is slidably connected inside the first plug tube (512), and the first rubber piston (514) is fixed on A first plug rod (515) is connected, and the first plug rod (515) is slidably connected to the end of the first plug tube (512) and the end of the fixed frame (511). The end of the first plug rod (515) is fixedly connected to a grinding plate (516), and a sliding groove (517) is provided on the grinding plate (516) and the fixed frame (511). The first plug tube (512) is connected to a first air guide tube (518), and the other end of the first air guide tube (518) is connected to a transfer frame (519), and the transfer frame (519) is welded and fixed in the fixed frame (511), and the transfer frame (519) is annular.

6. A welding device for leisure chair production according to claim 5, characterized in that: The transfer frame (519) is connected to a second air guide tube (520) and a third air guide tube (526); the other end of the second air guide tube (520) is connected to a second plug tube (521); a third spring (522) is welded and fixed inside the second plug tube (521); the other end of the third spring (522) is fixedly connected to a second rubber piston (523); the second rubber piston (523) is fixedly connected to a second plug rod (524); the second plug rod (524) penetrates The third plug tube (521) is slidably connected to the second plug rod (524), the end of the second plug rod (524) is fixedly connected to the first grinding rod (525), the other end of the third air guide tube (526) is connected to the third plug tube (527), a fourth spring (528) is welded and fixed in the third plug tube (527), the other end of the fourth spring (528) is fixedly connected to the third rubber piston (529), the third rubber piston (529) is slidably connected to the third plug tube (527), the third The third rubber piston (529) is fixedly connected to a third plug rod (530), the third plug rod (530) penetrates and is slidably connected in the third plug tube (527), the end of the third plug rod (530) is fixedly connected to a second polishing rod (531), the first polishing rod (525) and the second polishing rod (531) are both slidably connected in the sliding groove (517), the second plug tube (521) and the third plug tube (527) are both fixedly connected to the inner wall of the fixed frame (511), and the third plug rod (530) is fixedly connected to the inner wall of the fixed frame (511). The second plug tube (521) and the third plug tube (527) are symmetrically distributed on both sides of the fixed frame (511); the second plug tube (521) corresponds to the first polishing rod (525) one-to-one through the second plug rod (524) on the second rubber piston (523); the third plug tube (527) corresponds to the second polishing rod (531) one-to-one through the third plug rod (530) on the third rubber piston (529); the first polishing rod (525) and the second polishing rod (531) are parallel to each other.

7. A welding device for leisure chair production according to claim 6, characterized in that: A fixed plate (532) and a liquid storage tank (534) are welded and fixed on the connecting plate (510), and the fixed plate (532) and the liquid storage tank (534) are symmetrically distributed on both sides of the connecting plate (510). A flexible brush (533) is fixedly connected to the fixed plate (532), and the flexible brushes (533) are distributed on the fixed plate (532) at equal angles. A conveying cylinder (535) is fixedly connected to the side end of the liquid storage tank (534), and a rubber hose (536) is fixedly connected to the conveying cylinder (535), and a through hole (537) is opened through the rubber hose (536). A sponge plate (538) is fixedly connected to the conveying cylinder (535). The connecting plate (510) A double-axis motor (539) is installed in the liquid storage tank (510), and the output end of the double-axis motor (539) is connected to a screw rod (540), and the screw rod (540) is rotatably connected in the conveying cylinder (535). The liquid storage tank (534) is connected to a feed pipe (541), and the feed pipe (541) and the drain pipe (20) are both installed with solenoid valves. The conveying cylinders (535) are symmetrically distributed on both sides of the liquid storage tank (534), and the conveying cylinders (535) correspond to the screw rod (540) and the sponge plate (538) one by one, respectively. The rubber hoses (536) are equidistantly distributed on the conveying cylinder (535), and the through holes (537) are equidistantly distributed on the rubber hose (536).

8. The welding device for leisure chair production according to claim 1, characterized in that: The ventilation duct (12) is fixed at the middle part of the bottom of the device housing (1); the top surface of the fixed mesh plate (11), the top surface of the ventilation duct (12) and the inner bottom surface of the device housing (1) are flush; the fixed mesh plate (11) is a large-aperture mesh plate; the connecting pipe (18) is symmetrically distributed on both sides of the bottom of the ventilation duct (12); the electric heating wire (19) is spiral-shaped; and the electric heating wire (19) is equidistantly distributed in the connecting pipe (18).

9. The welding device for leisure chair production according to claim 1, characterized in that: A filter plate (13) is welded and fixed inside the ventilation tube (12), a first material discharge chute (14) is provided through the side end of the ventilation tube (12), a magnetic frame (15) is fixedly connected to the side end surface of the ventilation tube (12), a collection box (16) is magnetically adsorbed and connected inside the magnetic frame (15), a second material discharge chute (17) is provided through the top side end of the collection box (16), the driven shaft (8) is connected to the middle part of the filter plate (13), the scraper rod (10) is in an arc shape, the scraper rod (10) is distributed on the driven shaft (8) at equal angles, and the bottom end surface of the scraper rod (10) is aligned with the filter plate (13). The top end surface of the filter plate (13) is in contact with the bottom end surface of the first feed chute (14), the first feed chute (14) is symmetrically distributed on both sides of the ventilation duct (12), the magnetic frame (15) is symmetrically distributed on both sides of the ventilation duct (12), the magnetic frame (15) corresponds to the collecting box (16) one by one, the outer wall of the collecting box (16) is in contact with the inner wall of the magnetic frame (15), the side end surface of the collecting box (16) is in contact with the side end surface of the ventilation duct (12), and the length and width of the second feed chute (17) are respectively greater than the length and width of the first feed chute (14).

10. A welding device for leisure chair production according to claim 1, characterized in that: The water inlet pipe (21) is symmetrically distributed on both sides of the welding gun (24); the welding gun (24) penetrates and is slidably connected to the top center of the device housing (1); the through groove (25) is symmetrically distributed on both sides of the device housing (1); the rubber sheet (26) is fan-shaped; the rubber sheets (26) are distributed in the through groove (25) at equal angles; adjacent rubber sheets (26) are attached to each other; and the protective door plate (27) is made of a transparent material.

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