Welding equipment for office chair processing

Abstract

The invention discloses welding equipment for office chair machining. The welding equipment comprises a welding mechanical arm, a multi-station self-detection welding mechanism, a backflow type welding auxiliary mechanism and an airflow type cleaning mechanism. The multi-station self-detection welding mechanism comprises a welding machine box, a pair of driving side plates are rotationally assembled in the welding machine box, a plurality of sets of evenly-distributed welding workbenches are fixedly assembled between the pair of driving side plates, and a flaw detection assembly is fixedly assembled below the welding machine box. The backflow type welding auxiliary mechanism comprises a supporting purification box, one side of the supporting purification box is connected with a pair of cooling ventilation pipes, and the sides, close to the welding machine box, of the cooling ventilation pipes are fixedly connected with cooling gas distribution hoods. According to the office chair automatic welding equipment, by arranging the multi-station self-detection welding mechanism and the backflow type welding auxiliary mechanism, welding seams of office chair parts can be detected and repaired in time, the welding quality and the intelligent detection degree of the office chair automatic welding equipment are remarkably improved, and the use reliability of the office chair automatic welding equipment is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding processing of office chairs, and in particular relates to welding equipment for processing office chairs. Background Art

[0002] Office chairs refer to various chairs that are equipped for the convenience of work in daily work and social activities. They are generally composed of casters, chair legs, gas rods, chassis, seat, armrests, chair backs, lumbar pillows, headrests and other parts. Among them, the seat is a component used to support and connect the chassis and seat cushion. It is mainly composed of a seat frame, sponge pads, support rods, springs and other accessories. During the production and processing of the seat, welding equipment is required to process and fix the seat frame, support rods and other accessories.

[0003] Common office chair processing and welding methods mainly include: manual welding and automated welding. Among them, manual welding is that the operator manually uses welding equipment to weld and fix the office chair components. Although the production and processing cost is relatively low, there are problems such as low welding efficiency and inconsistent welding quality. Automated welding uses welding equipment such as welding robot arms to automatically weld office chair components. Although the production and processing cost of automated welding is relatively high, it has the advantages of high welding efficiency and stable welding, and is used as the main welding processing method in the office chair processing and welding process.

[0004] Currently, common office chair automated welding equipment is mainly composed of welding robotic arms, welding workbenches, automatic loading and unloading mechanisms, welding fixtures and other components. In actual application, the office chair parts to be welded are assembled on the welding workbench through the automatic loading and unloading mechanism, and the office chair parts are welded by the welding robotic arms.

[0005] However, most of the office chair automated welding equipment in the prior art do not have the weld detection function and cannot timely detect and repair the welds of office chair components, which increases the complexity of subsequent detection and repair of the welds of office chair components, resulting in poor welding quality and low level of intelligent welding detection of the office chair automated welding equipment.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The purpose of the present invention is to provide a welding device for processing office chairs, which can detect and repair welds in a timely manner, thereby improving the welding quality and intelligent welding detection level of the automatic welding equipment for office chairs.

[0008] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0009] A welding device for processing an office chair comprises: a welding mechanical arm, a multi-station self-detection welding mechanism, a reflow welding auxiliary mechanism, and an airflow cleaning mechanism.

[0010] The multi-station self-detection welding mechanism is arranged below the welding robot arm, and includes a welding chassis, which is fixedly installed below the welding robot arm. A pair of driving side plates are rotatably installed in the welding chassis, and a plurality of groups of evenly distributed welding workbenches are fixedly installed between the pair of driving side plates. A flaw detection component is fixedly installed below the welding chassis, and a mesh belt conveying component is fixedly installed below the welding chassis.

[0011] The reflow soldering auxiliary mechanism is fixedly installed on the outside of multiple groups of welding workbenches, and the reflow soldering auxiliary mechanism includes a support purification box, which is fixedly installed under the welding machine case, a pair of cooling ventilation pipes are connected to one side of the support purification box, and a cooling air cloth hood is fixedly connected to the cooling air pipe on one side close to the welding machine case, and a pair of cleaning air pipes are connected to the side of the support purification box away from the cooling air pipe, and a pair of cleaning air pipes are fixedly connected to the cleaning air cloth hood on one side close to the welding machine case.

[0012] The airflow cleaning mechanism is fixedly assembled in the welding machine box, and is used for blowing and cleaning the mesh belt conveyor assembly.

[0013] In one or more embodiments of the present invention, an assembly shaft is fixedly mounted on one side of a pair of driving side plates that are separated from each other. The driving side plates are assembled and limited by assembling the assembly shaft. A driving motor is fixedly mounted on the outer side of the welding chassis, and the output shaft of the driving motor is fixedly connected to the assembly shaft. The driving motor provides power, and the assembly shaft is rotationally driven by controlling the operation of the driving motor, thereby facilitating the rotation control of the driving side plates. A plurality of groups of welding workbenches are fixedly mounted on one side that are separated from each other. The welding fixture is assembled and positioned by the fixture assembly table.

[0014] In one or more embodiments of the present invention, the flaw detection component includes an assembly fixing frame. The assembly fixing frame plays the role of assembly fixing and synchronous movement control for the ultrasonic flaw detector. The ultrasonic flaw detector is fixedly installed above the assembly fixing frame, and the ultrasonic flaw detector is located below the multiple welding workbenches. The ultrasonic flaw detector is operated to perform flaw detection scanning on the welds of the office chair parts welded in the welding chassis.

[0015] In one or more embodiments of the present invention, drive connection blocks are fixedly connected to both sides of the assembly fixing frame, a pair of avoidance slide grooves are opened on the outer side of the welding chassis, and the pair of drive connection blocks are slidably assembled in the avoidance slide grooves.

[0016] In one or more embodiments of the present invention, a pair of the drive connection blocks are both threadedly connected to a movable screw at one end located outside the welding case. The movable screw serves to support, limit and control movement of the drive connection block. By controlling the rotation of the movable screw, the drive connection block can drive the assembly fixing frame to move synchronously under the action of the internal and external threads. Both ends of the movable screw are rotatably connected to a screw assembly seat, and the screw assembly seat is fixedly assembled on the side wall of the welding case. The screw assembly seat serves to assemble and limit the movable screw. A control motor is fixedly assembled on one side of the screw assembly seat, and the output shaft of the control motor is fixedly connected to the movable screw. The control motor serves to provide power, and the movable screw is rotationally driven by controlling the rotation of the control motor.

[0017] In one or more embodiments of the present invention, the mesh belt conveyor assembly includes a conveyor mesh belt. The welded office chair parts are supported and unloaded by controlling the movement of the conveyor mesh belt. A plurality of groups of evenly distributed drive rollers are arranged inside the conveyor mesh belt, and the plurality of groups of drive rollers are rotated below the welding chassis. The plurality of groups of drive rollers play the role of tension support and friction drive for the conveyor mesh belt.

[0018] In one or more embodiments of the present invention, a discharge motor is fixedly mounted on one side of the welding machine box, and the output shaft of the discharge motor is fixedly connected to a single driving roller. The discharge motor provides power, and the single driving roller is rotationally driven by controlling the operation of the discharge motor, thereby facilitating the movement control of the conveyor belt.

[0019] In one or more embodiments of the present invention, an impurity guide plate is fixedly installed in the support purification box. A guide cavity is formed by the cooperation of the impurity guide plate and the support purification box. At the same time, the impurities such as welding slag dropped from the top of the support purification box can be guided and collected by the impurity guide plate. The impurity guide plate is located in the support purification box and one side is fixedly connected with an inner mesh plate and an outer mesh plate. The activated carbon filler is stored and limited by the inner mesh plate and the outer mesh plate. At the same time, the gas collected above the support purification box can be filtered for impurities by the inner mesh plate and the outer mesh plate. Activated carbon filler is filled between the inner mesh plate and the outer mesh plate. Harmful waste gas contained in the gas in the support purification box is adsorbed and purified by the activated carbon filler.

[0020] In one or more embodiments of the present invention, the inner mesh plate and the outer mesh plate divide the support purification box into a filter purification chamber and a pair of guide chambers, the pair of guide chambers are symmetrically arranged on both sides of the filter purification chamber, and a storage net box is fixedly installed in the filter purification chamber. The storage net box collects impurities such as welding slag guided by the impurity guide plate.

[0021] In one or more embodiments of the present invention, a pair of cooling exhaust fans and cleaning exhaust fans are fixedly installed in a pair of the guide chambers, and the cooling ventilation pipe is connected to the cleaning exhaust fan. By controlling the operation of the cleaning exhaust fan to deliver gas into the cooling ventilation pipe, it is convenient to cool the weld seams of the welded office chair parts assembled outside the welding workbench by delivering gas to the welding workbench through the cooling air hood. The cleaning ventilation pipe is connected to the cooling exhaust fan. By controlling the operation of the cooling exhaust fan to deliver gas into the cleaning ventilation pipe, the welding fixture after unloading outside the fixture assembly table is blown and cleaned through the cleaning air hood, thereby avoiding the adverse effects of impurities on the welding fixture on subsequent welding. The cooling air hood and the cleaning air hood are both tilted toward the support purification box. By tilting the air outlets of the cooling air hood and the cleaning air hood, the gas in the welding chassis can be blown toward the support purification box along the cooling air hood and the cleaning air hood.

[0022] Compared with the prior art, the present invention can timely detect and repair the welds of office chair components by setting up a multi-station self-detection welding mechanism and a reflow welding auxiliary mechanism, which significantly improves the welding quality and intelligent detection level of the office chair automatic welding equipment, and greatly improves the use reliability of the office chair automatic welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional diagram of a welding device for processing an office chair according to an embodiment of the present invention;

[0025] Figure 2 A three-dimensional diagram of the first part of the structure of a welding device for processing an office chair in one embodiment of the present invention;

[0026] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0027] Figure 4A perspective view of the second part of the structure of the welding equipment for processing office chairs in one embodiment of the present invention;

[0028] Figure 5 for Figure 4 Schematic diagram of the structure at B in the middle;

[0029] Figure 6 A cross-sectional view of the first part of the structure of a welding device for processing an office chair according to an embodiment of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the structure at C in the middle;

[0031] Figure 8 A side cross-sectional view of a welding device for processing an office chair according to an embodiment of the present invention;

[0032] Fig. 9 for Figure 8 Schematic diagram of the structure at D in the middle;

[0033] Fig.10 It is a front cross-sectional view of a welding device for processing an office chair according to an embodiment of the present invention;

[0034] Fig.11 for Fig.10 Schematic diagram of the structure at E in the middle.

[0035] Description of main reference numerals:

[0036] 1- welding robot arm, 2- multi-station self-detection welding mechanism, 201- welding chassis, 202- driving side plate, 203- welding workbench, 204- assembly shaft, 205- driving motor, 206- fixture assembly table, 207- assembly fixed frame, 208- ultrasonic flaw detector, 209- driving connection block, 210- moving screw, 211- screw assembly seat, 212- control motor, 213- conveyor belt, 214- driving roller, 215- unloading motor, 3- reflux Type welding auxiliary mechanism, 301-support purification box, 302-cooling ventilation pipe, 303-cooling cloth air hood, 304-cleaning ventilation pipe, 305-cleaning cloth air hood, 306-impurity guide plate, 307-inner mesh plate, 308-outer mesh plate, 309-activated carbon filler, 310-filtration purification chamber, 311-guide chamber, 312-storage net box, 313-cooling exhaust fan, 314-cleaning exhaust fan, 4-airflow cleaning mechanism, 401-cleaning air guide pipe, 402-delivery air pipe. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0038] like Figures 1 to 11 As shown, a welding device for processing an office chair in one embodiment of the present invention includes: a welding robot arm 1, a multi-station self-detection welding mechanism 2, a reflow welding auxiliary mechanism 3, and an airflow cleaning mechanism 4.

[0039] like Figures 1 to 3 As shown, the multi-station self-detection welding mechanism 2 is arranged below the welding robot arm 1, and the multi-station self-detection welding mechanism 2 includes a welding chassis 201, and the welding chassis 201 is fixedly assembled below the welding robot arm 1. The welding chassis 201 serves as an assembly limit for a pair of driving side plates 202. At the same time, multiple groups of welding workbenches 203 can be protected from operation.

[0040] like Figures 2 to 4 As shown, a pair of driving side plates 202 are rotatably mounted in the welding machine box 201. The pair of driving side plates 202 are used to assemble and fix multiple welding workbenches 203, and the welding workbenches 203 are synchronously driven by rotating the driving side plates 202.

[0041] like Figures 2 to 4 As shown, a plurality of uniformly distributed welding workbenches 203 are fixedly mounted between a pair of driving side plates 202. The fixture assembly table 206 is assembled and fixed by the plurality of welding workbenches 203.

[0042] like Fig.10 As shown, the opposite sides of a pair of driving side plates 202 are fixedly assembled with an assembly shaft 204. The driving side plates 202 are assembled and limited by assembling the assembly shaft 204.

[0043] like Figures 1 to 4 As shown, a driving motor 205 is fixedly mounted on the outer side of the welding chassis 201, and the output shaft of the driving motor 205 is fixedly connected to the assembly shaft 204. The driving motor 205 provides power, and the assembly shaft 204 is driven to rotate by controlling the operation of the driving motor 205, so as to facilitate the rotation control of the driving side plate 202.

[0044] like Figures 2 to 4As shown, the opposite sides of the plurality of welding workbenches 203 are fixedly mounted with a fixture assembly table 206. The fixture assembly table 206 is used to assemble and position the welding fixture.

[0045] like Figures 8 to 9 As shown, a flaw detection component is fixedly mounted below the welding chassis 201, and the flaw detection component includes an assembly fixing frame 207. The assembly fixing frame 207 plays the role of assembly fixing and synchronous movement control for the ultrasonic flaw detector 208.

[0046] like Figures 8 to 9 As shown, an ultrasonic flaw detector 208 is fixedly mounted above the assembly fixture 207, and the ultrasonic flaw detector 208 is located below the multiple welding workbenches 203. The ultrasonic flaw detector 208 is used to perform flaw detection scanning on the welds of the office chair parts welded in the welding chassis 201.

[0047] like Figures 2 to 9 As shown, both sides of the assembly fixture 207 are fixedly connected with drive connection blocks 209. The assembly fixture 207 is synchronously moved and controlled by controlling the movement of the drive connection blocks 209.

[0048] Specifically, a pair of avoidance slots are provided on the outer side of the welding machine box 201, and a pair of driving connection blocks 209 are slidably assembled in the avoidance slots. The avoidance slots are provided to provide sliding avoidance space for the driving connection blocks 209.

[0049] like Figures 2 to 5 As shown, one end of a pair of driving connection blocks 209 located outside the welding box 201 is threadedly connected to a moving screw 210. The moving screw 210 supports the driving connection block 209 and controls the movement. By controlling the rotation of the moving screw 210, the driving connection block 209 can drive the assembly fixing frame 207 to move synchronously under the action of the internal and external threads.

[0050] like Figures 2 to 5 As shown, both ends of the movable screw rod 210 are rotatably connected to screw rod assembly seats 211, and the screw rod assembly seats 211 are fixedly assembled on the side wall of the welding machine box 201. The screw rod assembly seats 211 play the role of assembly limit for the movable screw rod 210.

[0051] like Figures 2 to 5 As shown, a control motor 212 is fixedly mounted on one side of the screw assembly seat 211, and the output shaft of the control motor 212 is fixedly connected to the moving screw 210. The control motor 212 plays the role of providing power, and the moving screw 210 is driven to rotate by controlling the rotation of the control motor 212.

[0052] like Figures 2 to 5As shown, a mesh belt conveyor assembly is fixedly mounted below the welding chassis 201. The mesh belt conveyor assembly includes a conveyor mesh belt 213. The welded office chair parts are supported and unloaded by controlling the movement of the conveyor mesh belt 213.

[0053] like Figures 2 to 5 As shown, multiple groups of evenly distributed drive rollers 214 are arranged inside the conveyor mesh belt 213, and the multiple groups of drive rollers 214 are all rotated and assembled below the welding machine box 201. The multiple groups of drive rollers 214 play the role of tensioning support and friction driving for the conveyor mesh belt 213.

[0054] like Figures 2 to 5 As shown, a discharge motor 215 is fixedly mounted on one side of the welding machine box 201, and the output shaft of the discharge motor 215 is fixedly connected to a single driving roller 214. The discharge motor 215 provides power, and the single driving roller 214 is rotationally driven by controlling the operation of the discharge motor 215, so as to facilitate the movement control of the conveyor mesh belt 213.

[0055] like Figures 2 to 8 As shown, the reflow soldering auxiliary mechanism 3 is fixedly assembled on the outside of the multiple welding workbenches 203. The reflow soldering auxiliary mechanism 3 includes a support purification box 301, and the support purification box 301 is fixedly assembled below the welding machine case 201. The welding machine case 201 is supported and positioned by the support purification box 301. At the same time, impurity filtering and purification space can be provided for the airflow in the welding machine case 201.

[0056] like Figures 2 to 8 As shown, a pair of cooling vent pipes 302 are connected to one side of the support purification box 301, and a cooling air hood 303 is fixedly connected to one side of the cooling vent pipe 302 close to the welding box 201. Through the cooperation of the pair of cooling vent pipes 302 and the cooling air hood 303, air can be blown to a single welding workbench 203 in the welding box 201, and the weld seams of the welded office chair parts fixed on the welding workbench 203 are blown to cool down and the exhaust gas is diverted.

[0057] like Figures 2 to 8 As shown, a pair of cleaning vent pipes 304 are connected to the side of the support purification box 301 away from the cooling vent pipe 302, and a cleaning cloth air cover 305 is fixedly connected to the side of the pair of cleaning vent pipes 304 close to the welding machine box 201. The cleaning cloth air cover 305 and the pair of cleaning vent pipes 304 cooperate with each other to blow air toward the welding workbench 203, so as to blow and clean the welding fixtures fixedly assembled on the welding workbench 203, thereby avoiding the adverse effects of impurities on the welding fixtures on the welding workbench 203 on subsequent welding.

[0058] like Figures 6 to 9As shown, an impurity guide plate 306 is fixedly installed in the support purification box 301. The impurity guide plate 306 cooperates with the support purification box 301 to form a guide cavity 311. At the same time, the impurity guide plate 306 can guide and collect impurities such as welding slag falling from the top of the support purification box 301.

[0059] like Figures 6 to 9 As shown, the impurity guide plate 306 is fixedly connected to an inner mesh plate 307 and an outer mesh plate 308 on one side of the support purification box 301. The activated carbon filler 309 is stored and limited by the inner mesh plate 307 and the outer mesh plate 308. At the same time, the gas collected above the support purification box 301 can be filtered for impurities by the inner mesh plate 307 and the outer mesh plate 308.

[0060] like Figures 6 to 9 As shown, an activated carbon filler 309 is filled between the inner mesh plate 307 and the outer mesh plate 308. The activated carbon filler 309 adsorbs and purifies harmful waste gas contained in the gas in the support purification box 301.

[0061] like Figures 6 to 9 As shown, the inner mesh plate 307 and the outer mesh plate 308 separate the support purification box 301 into a filtering and purifying chamber 310 and a pair of guide chambers 311. The pair of guide chambers 311 are symmetrically arranged on both sides of the filtering and purifying chamber 310.

[0062] like Figures 6 to 9 As shown, a storage net box 312 is fixedly installed in the filter purification chamber 310. The storage net box 312 collects impurities such as welding slag guided by the impurity guide plate 306.

[0063] like Figure 6 to Figure 7 As shown, a pair of cooling exhaust fans 313 and a cleaning exhaust fan 314 are fixedly installed in a pair of guide chambers 311, and the cooling ventilation pipe 302 is connected to the cleaning exhaust fan 314. By controlling the operation of the cleaning exhaust fan 314 to deliver gas to the cooling ventilation pipe 302, it is convenient to deliver gas to the welding workbench 203 through the cooling air hood 303 to cool the welds of the welded office chair parts assembled outside the welding workbench 203 and guide the exhaust gas.

[0064] like Figure 6 to Figure 7 As shown, the cleaning vent pipe 304 is connected to the cooling exhaust fan 313. By controlling the operation of the cooling exhaust fan 313, gas is delivered into the cleaning vent pipe 304, so that the welding fixture after unloading to the outside of the fixture assembly table 206 is blown and cleaned through the cleaning cloth air cover 305, thereby avoiding the adverse effects of impurities on the welding fixture on subsequent welding.

[0065] It is worth noting that the cooling air hood 303 and the cleaning air hood 305 are both inclined toward the support purification box 301. By arranging the air outlets of the cooling air hood 303 and the cleaning air hood 305 at an angle, the gas in the welding chassis 201 can be blown toward the support purification box 301 along the cooling air hood 303 and the cleaning air hood 305.

[0066] like Figures 8 to 9 As shown, the airflow cleaning mechanism 4 is fixedly assembled in the welding machine case 201, and the airflow cleaning mechanism 4 is used for blowing and cleaning the mesh belt conveyor assembly.

[0067] like Figures 8 to 9 As shown, the airflow cleaning mechanism 4 includes a cleaning air duct 401, which is fixedly mounted in the welding chassis 201, and the air outlet of the cleaning air duct 401 is arranged corresponding to the ultrasonic flaw detector 208. The cleaning air duct 401 plays a role in protecting the ultrasonic flaw detector 208 from being smashed. At the same time, the ultrasonic flaw detector 208 can be cleaned of impurities by blowing air into the ultrasonic flaw detector 208 through the cleaning air duct 401.

[0068] like Figures 8 to 9 As shown, both ends of the cleaning air duct 401 are fixedly connected with a delivery air duct 402, and one end of a pair of delivery air ducts 402 located outside the welding box 201 is respectively connected to the cooling vent pipe 302 and the cleaning vent pipe 304. The delivery air duct 402 serves to connect the cleaning air duct 401 with the cooling vent pipe 302 or the cleaning vent pipe 304, so as to provide the cleaning gas required by the delivery air duct 402 to the cleaning air duct 401.

[0069] During specific use, the welding fixture can be fixedly assembled above the multiple sets of fixture assembly tables 206 according to the welding requirements of the office chair parts. During the welding process, the office chair parts to be welded are assembled on the welding fixture located under the welding robot arm 1. Subsequently, the office chair parts assembled on the welding fixture can be welded by controlling the operation of the welding robot arm 1.

[0070] Subsequently, the assembly shaft 204 can be driven to rotate by controlling the operation of the driving motor 205, and the multiple welding workbenches 203 can rotate in the direction of the cooling air hood 303 under the cooperation of the driving side plates 202 and the assembly shaft 204, so that the welded office chair parts can be moved to the position corresponding to the cooling air hood 303 as the welding workbenches 203 rotate.

[0071] At the same time, the air in the support purification box 301 can be extracted by controlling the operation of the cleaning exhaust fan 314. The gas extracted during the operation of the cleaning exhaust fan 314 can be blown to the welded office chair parts along the cooling ventilation pipe 302 and the cooling air hood 303. The welding seams of the welded office chair parts are cooled by blowing air through the cooling air hood 303, which not only ensures the welding quality of the office chair parts, but also avoids the situation where the subsequent weld temperature is too high, resulting in inaccurate flaw detection results of the ultrasonic flaw detector 208. At the same time, the harmful exhaust gas generated during the cooling process of the weld can be blown and diverted by blowing air through the cooling air hood 303.

[0072] In addition, the air in the support purification box 301 can be assisted in extraction by controlling the operation of the cooling exhaust fan 313. The air extracted by the cooling exhaust fan 313 can be blown toward the welding workbench 203 along the clean ventilation pipe 304 and the clean cloth air hood 305. By blowing air toward the welding workbench 203 after unloading, impurities in the welding fixture assembled on the welding workbench 203 can be cleaned.

[0073] After the welded office chair parts on the welding table 203 are cooled by the cooling air hood 303, the assembly shaft 204 can be continuously driven to rotate by controlling the operation of the driving motor 205, so that the welding table 203 is rotated to the top of the conveyor belt 213. Subsequently, the welds of the office chair parts after cooling can be inspected by controlling the operation of the ultrasonic flaw detector 208. During the inspection process of the ultrasonic flaw detector 208, the pair of moving screws 210 can be driven to rotate by controlling the operation of a pair of control motors 212. The pair of driving connection blocks 209 drive the assembly fixing frame 207 and the ultrasonic flaw detector 208 to scan and inspect the welds of the office chair parts after cooling on the welding table 203 under the action of the internal and external threads.

[0074] After the ultrasonic flaw detector 208 scans and detects that the quality of the office chair parts weld is good, the office chair parts that have been inspected are placed on the conveyor mesh belt 213, and the office chair parts with qualified welding quality are unloaded by controlling the unloading motor 215 to rotate forward. When the flaw detector detects that the office chair parts weld has defects that cannot be repaired by re-welding, the unloading motor 215 can be controlled to rotate in the reverse direction to export the unqualified office chair parts. When the office chair parts detected by the flaw detector can be repaired by re-welding, the office chair parts are not unloaded, so that the office chair parts rotate to the welding position with the rotation of the welding workbench 203 for re-welding.

[0075] When the cooling exhaust fan 313 and the cleaning exhaust fan 314 continue to extract the air in the support purification box 301, the air inside the welding chassis 201 will also be transported to the support purification box 301 under the action of the airflow, and the air transported to the support purification box 301 will be filtered through the inner mesh plate 307, the outer mesh plate 308 and the storage mesh box 312. At the same time, the air in the support purification box 301 can be adsorbed and purified by the activated carbon filler 309, ensuring the environmental protection of the welding of the welding robot arm 1.

[0076] In addition, part of the gas in the cooling ventilation pipe 302 and the cleaning ventilation pipe 304 can be transported to the cleaning air duct 401 along the delivery air pipe 402. Blowing air to the ultrasonic flaw detector 208 through the cleaning air duct 401 can clean impurities from the ultrasonic flaw detector 208, thereby ensuring the stability of the use of the ultrasonic flaw detector 208.

[0077] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0078] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding device for processing office chairs, characterized in that: include: Welding robot arm; A multi-station self-detection welding mechanism is arranged below the welding mechanical arm, and includes a welding chassis, which is fixedly mounted below the welding mechanical arm, a pair of driving side plates are rotatably mounted in the welding chassis, a plurality of evenly distributed welding workbenches are fixedly mounted between the pair of driving side plates, a flaw detection component is fixedly mounted below the welding chassis, and a mesh belt conveyor component is fixedly mounted below the welding chassis; A reflow soldering auxiliary mechanism is fixedly mounted on the outside of the plurality of welding workbenches, and includes a supporting purification box, which is fixedly mounted below the welding chassis, a pair of cooling vent pipes are connected to one side of the supporting purification box, a cooling air cloth cover is fixedly connected to the cooling vent pipes on one side close to the welding chassis, a pair of cleaning vent pipes are connected to the side of the supporting purification box away from the cooling vent pipes, and a pair of cleaning vent pipes are fixedly connected to the cleaning air cloth cover on one side close to the welding chassis; The airflow cleaning mechanism is fixedly assembled in the welding machine box, and the airflow cleaning mechanism is used for blowing and cleaning the mesh belt conveyor assembly.

2. The welding equipment for office chair processing according to claim 1 is characterized in that: A pair of driving side plates are fixedly mounted with an assembly shaft on the opposite sides thereof, a driving motor is fixedly mounted on the outer side of the welding chassis, an output shaft of the driving motor is fixedly connected to the assembly shaft, and a plurality of groups of welding workbenches are fixedly mounted with a fixture assembly table on the opposite sides thereof.

3. The welding equipment for office chair processing according to claim 1, characterized in that: The flaw detection component comprises an assembly fixing frame, an ultrasonic flaw detector is fixedly mounted on the upper part of the assembly fixing frame, and the ultrasonic flaw detector is located below the multiple groups of welding workbenches.

4. The welding equipment for office chair processing according to claim 3 is characterized in that: Both sides of the assembly fixing frame are fixedly connected with driving connection blocks, and the outer side of the welding machine box is provided with a pair of avoidance sliding grooves, and the pair of driving connection blocks are slidably assembled in the avoidance sliding grooves.

5. The welding equipment for office chair processing according to claim 4, characterized in that: A pair of driving connection blocks are both threadedly connected to a movable screw at one end outside the welding case, and both ends of the movable screw are rotatably connected to a screw assembly seat, the screw assembly seat is fixedly mounted on the side wall of the welding case, and a control motor is fixedly mounted on one side of the screw assembly seat, and the output shaft of the control motor is fixedly connected to the movable screw.

6. The welding equipment for office chair processing according to claim 1, characterized in that: The mesh belt conveyor assembly comprises a conveyor mesh belt, in which a plurality of groups of evenly distributed driving rollers are arranged, and the plurality of groups of driving rollers are all rotated and assembled below a welding machine box.

7. The welding equipment for office chair processing according to claim 6, characterized in that: A discharge motor is fixedly mounted on one side of the welding machine box, and an output shaft of the discharge motor is fixedly connected to a single driving roller.

8. The welding equipment for office chair processing according to claim 1, characterized in that: An impurity guide plate is fixedly installed in the support purification box, and an inner mesh plate and an outer mesh plate are fixedly connected to one side of the impurity guide plate located in the support purification box, and activated carbon filler is filled between the inner mesh plate and the outer mesh plate.

9. The welding equipment for office chair processing according to claim 8, characterized in that: The inner mesh plate and the outer mesh plate divide the support purification box into a filtering and purification chamber and a pair of guide chambers. The pair of guide chambers are symmetrically arranged on both sides of the filtering and purification chamber. A storage net box is fixedly installed in the filtering and purification chamber.

10. The welding equipment for office chair processing according to claim 9, characterized in that: A pair of cooling exhaust fans and cleaning exhaust fans are fixedly installed in a pair of the guide chambers, the cooling ventilation pipe is connected to the cleaning exhaust fan, the cleaning ventilation pipe is connected to the cooling exhaust fan, and the cooling cloth air hood and the cleaning cloth air hood are both inclined toward the supporting purification box.

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