A welding machine for processing scaffolding

Abstract

The present invention discloses a welding machine for processing scaffolding. The present invention solves the problem that the existing welding device lacks a cleaning structure and can only rely on manual cleaning through a cleaning component. The third working plate is sprayed and cleaned through a spray nozzle, and the electric push rod drives the cleaning brush to reciprocate and brush the third working plate; the closed area formed by the first working plate, the second working plate and the frame is used to avoid a large amount of smoke generated when the high-temperature welding slag on the third working plate meets water, and the cleaning of the third working plate is transferred to the closed area, which is safe and reliable. The first cooling component and the second cooling component solve the problem that the existing welding machine does not have a cooling function and affects the work efficiency; the first cooling component is used to water-cool the unwelded part, and the second cooling component is used to air-cool the welded part to ensure the welding quality, avoid the hydrogen in the water from affecting the welded part, and at the same time improve the cooling speed and accelerate the cooling.

Description

Technical Field

[0001] The invention particularly relates to a welding machine for processing scaffolding. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. It can be divided into external scaffolding and internal scaffolding according to the location of the scaffolding; it can be divided into pole scaffolding, bridge scaffolding, portal scaffolding and suspended scaffolding according to the structural form.

[0003] Different types of engineering construction use scaffolding for different purposes. Indoor scaffolding generally uses aluminum tubes as raw materials, and is welded by welding machines. Welding machines use various fusible alloys (solder) to connect metal parts. Welding ensures the continuity of the metal, ensures that the welding parts do not move relative to each other, and the contact surface does not oxidize. However, the existing welding machines have the following problems: First, after the scaffolding is welded, a large amount of welding slag will be left. Since the welding device lacks a cleaning structure, it can only be cleaned manually, which is time-consuming and labor-intensive, affecting the subsequent scaffolding welding processing efficiency; second, the welding machine does not have a cooling function. After welding, the temperature of the aluminum tube is high, and the staff cannot remove the aluminum tube to enter the next process. They can only wait for the aluminum tube to cool naturally, which greatly affects the production efficiency. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and to provide a welding machine for processing scaffolding.

[0005] The technical solution of the present invention to solve the above problems is: a welding machine for processing scaffolds, comprising a frame with a hollow cubic structure, a cleaning assembly installed in the frame, a workbench installed on the frame and capable of being unfolded and folded, a welding assembly installed on the frame, and a cooling device passing through the welding assembly and located above the frame;

[0006] The rack includes a bottom frame with a cubic hollow structure and a frame slot on the top, and a top frame with a rectangular frame structure installed at the frame slot and connected to the bottom frame;

[0007] The workbench includes a driving assembly mounted on the frame, a first working plate and a second working plate mounted on the driving assembly and respectively located on the left and right sides of the workbench, the first working plate and the second working plate being symmetrical about the workbench and always parallel to the horizontal plane, and a third working plate mounted on the driving assembly and always parallel to the horizontal plane;

[0008] The driving assembly includes a first shaft rotatably mounted on the base frame through a rolling bearing, a driving motor mounted on the base frame and having its output shaft mounted on the first shaft, a second shaft rotatably mounted on the base frame through a rolling bearing and symmetrical with the first shaft about the base frame, a first gear mounted on the first shaft and located in front of the base frame, a second gear mounted on the second shaft and meshing with the first gear and symmetrical with the first gear about the base frame, a pair of driving rods A whose upper ends are hinged to the first working plate and whose lower ends are mounted on the first shaft and are respectively located on the front and rear sides of the first working plate, a pair of driving rods B whose upper ends are hinged to the first working plate and whose lower ends are hinged to the base frame and are respectively located on the front and rear sides of the first working plate, the driving rod B being always parallel to the driving rod A and the upper ends being hinged to the second A pair of driving rods C, the working plate is hinged and the lower end is mounted on the second axis, and are respectively located on the front and rear sides of the second working plate; a pair of driving rods D, the upper end is hinged to the second working plate and the lower end is hinged to the bottom frame, and are respectively located on the front and rear sides of the second working plate, the driving rod C is always parallel to the driving rod D; a pair of driving rods E, the upper end is hinged to the third working plate and are respectively located on the front and rear sides of the third working plate; a pair of driving rods F, the upper end is hinged to the driving rod E and the lower end is mounted on the first axis, and are respectively located on the front and rear sides of the third working plate; a pair of driving rods G, the upper end is hinged to the driving rod G and the lower end is mounted on the second axis, and are respectively located on the front and rear sides of the third working plate;

[0009] The driving rod A, driving rod B, driving rod C and driving rod D are all located outside the frame, driving rod A is symmetrical with driving rod C, and driving rod B is symmetrical with driving rod D; driving rod E, driving rod F, driving rod G and driving rod H are all located inside the frame, driving rod E is symmetrical with driving rod G, and driving rod F is symmetrical with driving rod H;

[0010] The cleaning assembly includes a pair of cleaning spray pipes installed on the top of the base frame and located on the left and right sides of the third workbench, a plurality of cleaning spray nozzles installed on the cleaning spray pipes and distributed along the length direction of the cleaning spray pipes, a second electric push rod installed on the base frame and located on the rear side of the third workbench, a push plate installed on the telescopic rod of the second electric push rod, and a cleaning brush installed on the push plate;

[0011] The cooling device includes a pair of fixed platforms distributed along the X direction and located on the left and right sides of the frame, a pair of clamping assemblies installed on the fixed platforms, a pair of V-shaped blocks installed on the fixed platforms and located between the clamping assemblies and the frame, the V-shaped blocks are located between the clamping assemblies and the frame, and a first cooling assembly installed on the fixed platforms;

[0012] The clamping assembly includes a fixing frame installed on the fixing platform, a first electric push rod installed on the top of the fixing frame, a fixing column installed on the telescopic rod of the first electric push rod, a pair of clamping racks installed on the fixing column and respectively located on the left and right sides of the fixing column, a pair of support rods installed on the fixing frame and respectively located on the left and right sides of the fixing column and having an L-shaped structure, a clamping gear rotatably installed at a bending position of the support rod and meshing with the clamping rack, a first rod installed at one end at the center of the clamping gear, a second rod hinged at one end to the support rod and always parallel to the first rod, a third rod hinged to the first rod and the second rod and always parallel to the fixing platform, and a clamping block installed on the third rod and having a V-shaped structure;

[0013] The first cooling assembly includes a pair of columns mounted on the fixed platform, transmission rods at both ends of which are respectively mounted on the columns, a transmission rack mounted on the transmission rod, and a pair of spraying parts movably mounted on the transmission rod and symmetrical about the support frame;

[0014] The spraying member includes a translation cylinder movably mounted on a transmission rod and provided with a through groove, a flat plate mounted on the translation cylinder and distributed along the Z direction and respectively located on the upper and lower sides of the through groove, a main shaft mounted on the flat plate and rotating through a rolling bearing, a transmission motor mounted on the flat plate and having an output shaft mounted on the main shaft, a transmission gear mounted on the main shaft and meshing with a transmission rack, a cooling spray pipe mounted on the bottom of the flat plate, a plurality of cooling spray nozzles mounted on the cooling spray pipe, a water tank mounted on a fixed platform, a water pipe connected to the cooling spray pipe at one end and connected to the water tank at the other end, a first valve mounted on the water pipe, and a first water pump mounted on the water pipe.

[0015] Furthermore, the cleaning assembly also includes a wastewater tank located below the frame, a wastewater pipe connected to the base frame at one end and to the wastewater tank at the other end, a second valve installed on the wastewater pipe, a water supply pipe connected to the spray pipe at one end and to the water supply tank at the other end, a third valve installed on the water supply pipe, and a third water pump installed on the water supply pipe.

[0016] Furthermore, an exhaust pipe is installed on the upper part of the base frame.

[0017] Furthermore, the first gear and the second gear are both incomplete gears, and the central angle subtended by the teeth of the first gear is 150°.

[0018] Furthermore, the welding assembly includes a welding frame installed on the frame, a cylinder installed on the top of the welding frame, a support plate installed on the telescopic rod of the cylinder, and a welding head installed on the support plate.

[0019] Furthermore, the lengths of the driving rod A, driving rod B, driving rod C, and driving rod D are all L1, the lengths of the driving rod E and driving rod G are all L2, and the lengths of the driving rod F and driving rod H are all L3, and L1>L2>L3.

[0020] Furthermore, the cooling device further comprises a second cooling component mounted on the support plate;

[0021] The second cooling component includes a pair of air ducts installed on the support plate and located on the front and rear sides of the welding head respectively, multiple air outlets installed on the air ducts, an air cooler installed on the top of the support frame, an air supply pipe connected to the air cooler at one end and connected to the air duct at the other end, a fourth valve installed on the air supply pipe, and a pump body installed on the air supply pipe.

[0022] Furthermore, the distance between the hinge point between the first rod and the third rod and the hinge point between the second rod and the third rod is L4, and the distance between the center of the clamping gear and the hinge point between the second rod and the support rod is L5, and L4=L5.

[0023] Furthermore, the clamping gear is an incomplete gear, and the central angle subtended by the teeth of the clamping gear is 150°.

[0024] Furthermore, a pair of sliding columns are installed on the transmission rod, and a sliding groove cooperating with the sliding columns is provided on the translation cylinder, and the sliding column is inserted into the sliding groove.

[0025] The present invention has the beneficial effects:

[0026] (1) The present invention solves the problem that the existing welding device lacks a cleaning structure and can only rely on manual cleaning through a cleaning component. The third working plate is sprayed and cleaned through a spray nozzle, and the electric push rod drives the cleaning brush to reciprocate and brush the third working plate; through the closed area formed by the first working plate, the second working plate and the frame, a large amount of smoke generated by the high-temperature welding slag on the third working plate when it meets water is avoided, and the cleaning of the third working plate is transferred to the closed area, which is safe and reliable.

[0027] (2) The first cooling component and the second cooling component solve the problem that the existing welding machine does not have a cooling function, which affects the work efficiency; the first cooling component is used to water-cool the unwelded parts, and the second cooling component is used to air-cool the welded parts to ensure the welding quality and prevent the hydrogen in the water from affecting the welded parts. At the same time, the cooling speed is increased and the cooling is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the welding assembly of the present invention;

[0030] Figure 3 It is a partial cross-sectional view of the present invention in the left direction;

[0031] Figure 4 This is a right side view of the spraying part of the present invention;

[0032] Figure 5 This is a front view of the frame of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0034] Figure 7 This is a cross-sectional view of the main viewing direction of the frame of the present invention;

[0035] Figure 8 This is a schematic diagram of the main frame structure of the present invention when viewed from above;

[0036] Fig. 9 It is a schematic diagram of the frame structure when the first working plate and the second working plate of the present invention are closed.

[0037] In the figure:

[0038] 100-fixed table, 101-welding frame, 102-cylinder, 103-support plate, 104-welding head, 105-clamping assembly, 106-V-block, 107-first cooling assembly, 108-second cooling assembly, 109-fixed frame, 110-first electric push rod, 111-fixed column, 112-clamping rack, 113-support rod, 114-clamping gear, 115-first rod, 116-second rod, 117-third rod , 118-clamping block, 119-column, 120-transmission rod, 121-transmission rack, 122-spraying part, 123-through groove, 124-translation cylinder, 125-plate, 127-transmission motor, 128-transmission gear, 129-cooling spray pipe, 130-cooling spray nozzle, 131-water supply tank, 132-water pipe, 133-sliding column, 134-air duct, 135-air outlet, 136-air cooler, 137-air pipe.

[0039] 200-frame, 201-cleaning assembly, 202-workbench, 203-welding assembly, 204-bottom frame, 205-frame slot, 206-exhaust pipe, 207-top frame, 208-driving assembly, 209-first working plate, 210-second working plate, 211-third working plate, 212-first shaft, 213-driving motor, 214-second shaft, 215-first gear, 216-second gear, 217-driving rod A, 218-driving rod B, 219-driving rod C, 220-driving rod D, 221-driving rod E, 222-driving rod F, 223-driving rod G, 224-driving rod H, 225-cleaning spray pipe, 226-cleaning spray nozzle, 227-second electric push rod, 228-push plate, 229-cleaning brush, 230-waste water tank. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0041] A welding machine for processing scaffolds, comprising a frame 200 of a hollow cubic structure, a cleaning assembly 201 installed in the frame 200, a workbench 202 installed on the frame 200 and capable of being unfolded and folded, a welding assembly 203 installed on the frame 200, and a cooling device passing through the welding assembly 203 and located above the frame 200;

[0042] The rack 200 includes a bottom frame 204 with a cubic hollow structure and a frame slot 205 on the top, an exhaust pipe 206 is installed on the top of the bottom frame 204, and a top frame 207 with a rectangular frame structure is installed at the frame slot 205 and communicated with the bottom frame 204;

[0043] The workbench 202 includes a driving assembly 208 mounted on the frame 200, a first working plate 209 and a second working plate 210 mounted on the driving assembly 208 and respectively located on the left and right sides of the workbench 202, the first working plate 209 and the second working plate 210 being symmetrical with respect to the workbench 202 and always parallel to the horizontal plane, and a third working plate 211 mounted on the driving assembly 208 and always parallel to the horizontal plane;

[0044] The driving assembly 208 includes a first shaft 212 rotatably mounted on the base frame 204 through a rolling bearing, a driving motor 213 mounted on the base frame 204 and with its output shaft mounted on the first shaft 212, a second shaft 214 rotatably mounted on the base frame 204 through a rolling bearing and symmetrical with the first shaft 212 about the base frame 204, a first gear 215 mounted on the first shaft 212 and located in front of the base frame 204, a second gear 216 mounted on the second shaft 214 and meshing with the first gear 215 and symmetrical with the first gear 215 about the base frame 204, a pair of driving rods A217 whose upper ends are hinged to the first working plate 209 and whose lower ends are mounted on the first shaft 212 and are respectively located on the front and rear sides of the first working plate 209, and a pair of driving rods B218 whose upper ends are hinged to the first working plate 209 and whose lower ends are hinged to the base frame 204 and are respectively located on the front and rear sides of the first working plate 209, and the driving rods B218 are always parallel to the driving rods A217 , a pair of driving rods C219 whose upper ends are hinged to the second working plate 210 and whose lower ends are installed on the second shaft 214, and are respectively located on the front and rear sides of the second working plate 210; a pair of driving rods D220 whose upper ends are hinged to the second working plate 210 and whose lower ends are hinged to the bottom frame 204, and are respectively located on the front and rear sides of the second working plate 210; the driving rods C219 are always parallel to the driving rods D220; a pair of driving rods E221 whose upper ends are hinged to the third working plate 211 and are respectively located on the front and rear sides of the third working plate 211; a pair of driving rods F222 whose upper ends are hinged to the driving rods E221 and whose lower ends are installed on the first shaft 212, and are respectively located on the front and rear sides of the third working plate 211; a pair of driving rods G223 whose upper ends are hinged to the third working plate 211 and are respectively located on the front and rear sides of the third working plate 211; a pair of driving rods H224 whose upper ends are hinged to the driving rods G223 and whose lower ends are installed on the second shaft 214, and are respectively located on the front and rear sides of the third working plate 211;

[0045] Driving rod A217, driving rod B218, driving rod C219, and driving rod D220 are all located outside the frame 200, driving rod A217 and driving rod C219 are symmetrical, and driving rod B218 and driving rod D220 are symmetrical; driving rod E221, driving rod F222, driving rod G223, and driving rod H224 are all located inside the frame 200, driving rod E221 and driving rod G223 are symmetrical, and driving rod F222 and driving rod H224 are symmetrical; the length of driving rod A217, driving rod B218, driving rod C219, and driving rod D220 is L1, the length of driving rod E221 and driving rod G223 is L2, the length of driving rod F222 and driving rod H224 is L3, L1>L2>L3.

[0046] The first gear 215 and the second gear 216 are both incomplete gears, and the central angle of the teeth of the first gear 215 is 150°.

[0047] The first working plate 209, the second working plate 210 and the third working plate 211 are driven to move by the driving assembly 208, so that when the first working plate 209 and the second working plate 210 are closed, the third working plate 211 is moved into the frame 200, and a closed area is formed between the first working plate 209, the second working plate 210 and the frame 200, so as to prepare for the cleaning of the third working plate 211, so that when the first working plate 209 and the second working plate 210 are unfolded, the third working plate 211 extends out of the frame 200, so as to prepare for placing the workpiece for welding; two sets of parallelogram mechanisms are formed by the driving rods A217, B218, C219 and D220, which respectively drive the first working plate 209 and the second working plate 210 to move, and a connecting rod mechanism is formed by the driving rods E221, F222, G223 and H224, so as to drive the third working plate 211 to rise and fall.

[0048] The cleaning assembly 201 includes a pair of cleaning spray pipes 225 installed on the top of the base frame 204 and located on the left and right sides of the third workbench 202, a plurality of cleaning spray nozzles 226 installed on the cleaning spray pipes 225 and distributed along the length direction of the cleaning spray pipes 225, a second electric push rod 227 installed on the base frame 204 and located on the rear side of the third workbench 202, a push plate 228 installed on the telescopic rod of the second electric push rod 227, and a cleaning brush 229 installed on the push plate 228.

[0049] The cleaning assembly 201 also includes a wastewater tank 230 located below the frame 200, a wastewater pipe connected to the base frame 204 at one end and connected to the wastewater tank 230 at the other end, a second valve installed on the wastewater pipe, a water supply pipe connected to the cleaning spray pipe 225 at one end and connected to the water supply tank at the other end, a third valve installed on the water supply pipe, and a third water pump installed on the water supply pipe.

[0050] The cleaning assembly 201 solves the problem that the existing welding device lacks a cleaning structure and can only rely on manual cleaning, which is time-consuming and laborious. The third working plate 211 is sprayed and cleaned by the cleaning spray nozzle 226, and the second electric push rod 227 drives the cleaning brush 229 to reciprocate and brush the third working plate 211; through the closed area formed by the first working plate 209, the second working plate 210 and the frame 200, a large amount of smoke generated by the high-temperature welding slag on the third working plate 211 after meeting water is avoided, and the cleaning of the third working plate 211 is transferred to the closed area, which is safe and reliable.

[0051] The welding assembly 203 includes a welding frame 101 installed on the frame 200 , a cylinder 102 installed on the top of the welding frame 101 , a support plate 103 installed on the telescopic rod of the cylinder 102 , and a welding head 104 installed on the support plate 103 .

[0052] The welding assembly 203 is located directly above the third working plate 211 . The welding work is completed by the welding assembly 203 , and the welding slag falls onto the third working plate 211 .

[0053] The cooling device includes a pair of fixed tables 100 distributed along the X direction and located on the left and right sides of the rack 200, a pair of clamping components 105 installed on the fixed tables 100, a pair of V-shaped blocks 106 installed on the fixed tables 100 and located between the clamping components 105 and the rack 200, the V-shaped blocks 106 are located between the clamping components 105 and the rack 200, a first cooling component 107 installed on the fixed table 100, and a second cooling component 108 installed on the support plate.

[0054] The clamping assembly 105 includes a fixing frame 109 mounted on the fixing platform 100, a first electric push rod 110 mounted on the top of the fixing frame 109, a fixing column 111 mounted on the telescopic rod of the first electric push rod 110, a pair of clamping racks 112 mounted on the fixing column 111 and located on the left and right sides of the fixing column 111, a pair of support rods 113 of an L-shaped structure mounted on the fixing frame 109 and located on the left and right sides of the fixing column 111, and a first electric push rod 110 mounted on the top of the fixing frame 109. A clamping gear 114 meshing with the clamping rack 112, the clamping gear 114 is an incomplete gear, the teeth of the clamping gear 114 subtend a central angle of 150°, a first rod 115 installed at one end at the center of the clamping gear 114, a second rod 116 hinged at one end to the support rod 113 and always parallel to the first rod 115, a third rod 117 hinged to the first rod 115 and the second rod 116 and always parallel to the fixed platform 100, and a clamping block 118 installed on the third rod 117 and having a V-shaped structure;

[0055] The distance from the hinge point of the first rod 115 and the third rod 117 to the hinge point of the second rod 116 and the third rod 117 is L4, the distance from the center of the clamping gear 114 to the hinge point of the second rod 116 and the support rod 113 is L5, L4=L5; the length of the first rod 115 is L6, the length of the second rod 116 is L7, L6=L7.

[0056] The aluminum tube to be welded is clamped by the clamping assembly 105 and the V-block 106; the cylinder 102 drives the clamping rack 112 to move and provide power, and the clamping rack 112 is engaged with the clamping gear 114 to transmit power. The first rod 115, the second rod 116, the third rod 117, etc. form a parallelogram structure to ensure that the clamping block 118 is always parallel to the horizontal plane during the movement, and the two clamping gears 114 rotate in opposite directions, so that the two clamping blocks 118 move towards each other to clamp the aluminum tube.

[0057] The first cooling assembly 107 includes a pair of columns 119 installed on the fixed platform 100 and distributed along the X direction, a transmission rod 120 with two ends respectively installed on the columns 119, a transmission rack 121 installed on the transmission rod 120, and a pair of spraying parts 122 movably installed on the transmission rod 120 and symmetrical with respect to the support frame 101;

[0058] The spraying member 122 includes a translation cylinder 124 movably mounted on the transmission rod 120 and provided with a through groove 123, a plate 125 mounted on the translation cylinder 124 and distributed along the Z direction and respectively located on the upper and lower sides of the through groove 123, a main shaft mounted on the plate 125 for rotation through a rolling bearing, a transmission motor 127 mounted on the plate 125 and with an output shaft mounted on the main shaft, a transmission gear 128 mounted on the main shaft and meshing with the transmission rack 121, a cooling spray pipe 129 mounted on the bottom of the plate 125, a plurality of cooling spray nozzles 130 mounted on the cooling spray pipe 129, a water supply tank 131 mounted on the fixed platform 100, a water pipe 132 connected to the cooling spray pipe 129 at one end and connected to the water supply tank 131 at the other end, a first valve mounted on the water pipe 132, and a first water pump mounted on the water pipe 132.

[0059] A pair of slide posts 133 are mounted on the transmission rod 120 , and a slide groove cooperating with the slide posts 133 is disposed on the translation cylinder 124 , and the slide posts 133 are inserted into the slide groove.

[0060] The second cooling component 108 includes a pair of air ducts 134 installed on the support plate 103 and respectively located on the front and rear sides of the welding head 104, a plurality of air outlets 135 installed on the air ducts 134, an air cooler 136 installed on the top of the support frame 101, an air supply pipe 137 connected to the air cooler 136 at one end and connected to the air duct 134 at the other end, a fourth valve installed on the air supply pipe 137, and a pump body installed on the air supply pipe 137.

[0061] The first cooling component 107 and the second cooling component 108 solve the problem that the existing welding machine does not have a cooling function, the staff cannot remove the high-temperature aluminum tube after welding, and the work efficiency is affected; the first cooling component 107 is used to water-cool the unwelded part, and the second cooling component 108 is used to air-cool the welded part to ensure the welding quality and prevent the hydrogen in the water from affecting the welded part. At the same time, the cooling speed is improved and the cooling is accelerated; the gear rack is engaged to drive the translation cylinder 124 to reciprocate along the X direction, spray multiple times, and cool quickly.

[0062] Working principle of the present invention:

[0063] (1) Start the driving assembly 208, the first gear 215 meshes with the second gear 216, the first working plate 209 and the second working plate 210 move in opposite directions, the first working plate 209 and the second working plate 210 unfold, the third working plate 211 rises and extends out of the frame 200, and the upper end surfaces of the first working plate 209, the second working plate 210 and the third working plate 211 are flush;

[0064] (2) The workpiece to be welded is placed on the V-shaped block 106, and the clamping assembly 105 is started. The clamping assembly 105 drives the clamping rack 112 to move upward, and the two clamping blocks 118 move toward each other, and the distance between the clamping blocks 118 decreases, thereby clamping the workpiece to be welded;

[0065] (3) The welding head 104 welds the aluminum tube to be welded;

[0066] (4) After welding is completed, the first cooling component 107 is started, and the translation cylinder 124 moves along the X direction to spray and cool the unwelded parts; the second cooling component 108 is started to cool the welded parts by air cooling.

[0067] (5) After welding is completed, the driving assembly 208 is started, the first gear 215 is meshed with the second gear 216, the first working plate 209 and the second working plate 210 move in opposite directions, the first working plate 209 and the second working plate 210 are closed, and the third working plate 211 is lowered back into the frame 200, and the first working plate 209, the second working plate 210 and the frame 200 form a closed area;

[0068] (6) The cleaning assembly 201 is in operation. The cleaning spray nozzle 226 sprays water toward the third working plate 211 . The second electric push rod 227 drives the cleaning brush 229 to scrub the third working plate 211 , thereby thoroughly cleaning the welding slag on the third working plate 211 .

[0069] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A welding machine for processing scaffolding, characterized in that: It comprises a frame (200) with a hollow cubic structure, a cleaning assembly (201) installed in the frame (200), a workbench (202) installed on the frame (200) and capable of being unfolded and folded, a welding assembly (203) installed on the frame (200), and a cooling device passing through the welding assembly (203) and located above the frame (200); The frame (200) comprises a bottom frame (204) having a cubic hollow structure and a frame slot (205) on the top, and a top frame (207) having a rectangular frame structure and installed at the frame slot (205) and communicating with the bottom frame (204); The workbench (202) comprises a driving assembly (208) mounted on a frame (200), a first working plate (209) and a second working plate (210) mounted on the driving assembly (208) and respectively located on left and right sides of the workbench (202), the first working plate (209) and the second working plate (210) being symmetrical with respect to the workbench (202) and always parallel to a horizontal plane, and a third working plate (211) mounted on the driving assembly (208) and always parallel to the horizontal plane; The driving assembly (208) comprises a first shaft (212) rotatably mounted on the base frame (204) via a rolling bearing, a driving motor (213) mounted on the base frame (204) and having its output shaft mounted on the first shaft (212), a second shaft (214) rotatably mounted on the base frame (204) via a rolling bearing and being symmetrical with the first shaft (212) about the base frame (204), a first gear (215) mounted on the first shaft (212) and located in front of the base frame (204), and a second gear (215) mounted on the second shaft (214) and symmetrical with the first gear (215). a second gear (216) meshed with the first gear (215) and symmetrical with the first gear (215) about the bottom frame (204); a pair of drive rods A (217) whose upper ends are hinged to the first working plate (209) and whose lower ends are mounted on the first shaft (212) and are respectively located on the front and rear sides of the first working plate (209); and a pair of drive rods B (218) whose upper ends are hinged to the first working plate (209) and whose lower ends are hinged to the bottom frame (204) and are respectively located on the front and rear sides of the first working plate (209), wherein the drive rods B (218) are always connected to the drive rods A (21 7), a pair of driving rods C (219) whose upper ends are hinged to the second working plate (210) and whose lower ends are mounted on the second shaft (214), and are respectively located on the front and rear sides of the second working plate (210); a pair of driving rods D (220) whose upper ends are hinged to the second working plate (210) and whose lower ends are hinged to the bottom frame (204), and are respectively located on the front and rear sides of the second working plate (210); the driving rods C (219) are always parallel to the driving rods D (220), and whose upper ends are hinged to the third working plate (211) and are respectively located in front of the third working plate (211) a pair of driving rods E (221) at the rear sides, a pair of driving rods F (222) whose upper ends are hinged to the driving rods E (221) and whose lower ends are mounted on the first shaft (212) and are respectively located at the front and rear sides of the third working plate (211); a pair of driving rods G (223) whose upper ends are hinged to the third working plate (211) and are respectively located at the front and rear sides of the third working plate (211); and a pair of driving rods H (224) whose upper ends are hinged to the driving rods G (223) and whose lower ends are mounted on the second shaft (214) and are respectively located at the front and rear sides of the third working plate (211); The driving rod A (217), the driving rod B (218), the driving rod C (219), and the driving rod D (220) are all located outside the frame (200), the driving rod A (217) and the driving rod C (219) are symmetrical, and the driving rod B (218) and the driving rod D (220) are symmetrical; the driving rod E (221), the driving rod F (222), the driving rod G (223), and the driving rod H (224) are all located inside the frame (200), the driving rod E (221) and the driving rod G (223) are symmetrical, and the driving rod F (222) and the driving rod H (224) are symmetrical; The cleaning assembly (201) comprises a pair of cleaning spray pipes (225) mounted on the top of the base frame (204) and located on the left and right sides of the third workbench (202), a plurality of cleaning spray nozzles (226) mounted on the cleaning spray pipes (225) and distributed along the length direction of the cleaning spray pipes (225), a second electric push rod (227) mounted on the base frame (204) and located on the rear side of the third workbench (202), a push plate (228) mounted on the telescopic rod of the second electric push rod (227), and a cleaning brush (229) mounted on the push plate (228); The cooling device comprises a pair of fixed platforms (100) distributed along the X direction and located on the left and right sides of the frame (200), a pair of clamping assemblies (105) installed on the fixed platforms (100), a pair of V-shaped blocks (106) installed on the fixed platforms (100) and located between the clamping assemblies (105) and the frame (200), the V-shaped blocks (106) being located between the clamping assemblies (105) and the frame (200), and a first cooling assembly (107) installed on the fixed platforms (100); The clamping assembly (105) comprises a fixing frame (109) mounted on the fixing platform (100), a first electric push rod (110) mounted on the top of the fixing frame (109), a fixing column (111) mounted on the telescopic rod of the first electric push rod (110), a pair of clamping racks (112) mounted on the fixing column (111) and located on the left and right sides of the fixing column (111), a pair of support rods (113) of an L-shaped structure mounted on the fixing frame (109) and located on the left and right sides of the fixing column (111), and a rotating shaft. A clamping gear (114) movably mounted at a bent position of the support rod (113) and meshing with the clamping rack (112); a first rod (115) having one end mounted at the center of the clamping gear (114); a second rod (116) having one end hinged to the support rod (113) and always parallel to the first rod (115); a third rod (117) hinged to the first rod (115) and the second rod (116) and always parallel to the fixed platform (100); and a clamping block (118) mounted on the third rod (117) and having a V-shaped structure; The first cooling component (107) comprises a pair of columns (119) mounted on the fixed platform (100) and distributed along the X direction, a transmission rod (120) with two ends respectively mounted on the columns (119), a transmission rack (121) mounted on the transmission rod (120), and a pair of spraying parts (122) movably mounted on the transmission rod (120) and symmetrical with respect to the welding frame (101); The spraying member (122) comprises a translation cylinder (124) movably mounted on the transmission rod (120) and provided with a through slot (123), a plate (125) mounted on the translation cylinder (124) and distributed along the Z direction and located at the upper and lower sides of the through slot (123), a main shaft mounted on the plate (125) for rotation via a rolling bearing, a transmission motor (127) mounted on the plate (125) and having an output shaft mounted on the main shaft, a transmission gear (128) mounted on the main shaft and meshing with the transmission rack (121), and a transmission gear (128) mounted on the main shaft. A cooling spray pipe (129) at the bottom of the flat plate (125), a plurality of cooling spray nozzles (130) mounted on the cooling spray pipe (129), a water supply tank (131) mounted on the fixed platform (100), a water pipe (132) having one end connected to the cooling spray pipe (129) and the other end connected to the water supply tank (131), a first valve mounted on the water pipe (132), and a first water pump mounted on the water pipe (132); the driving rod A (217), the driving rod B (218), and the driving rod C (21 9), the length of the driving rod D (220) is L1, the length of the driving rod E (221) and the driving rod G (223) is L2, the length of the driving rod F (222) and the driving rod H (224) is L3, L1>L2>L3; the cleaning assembly (201) further comprises a waste water tank (230) located below the frame (200), a waste water pipe having one end connected to the bottom frame (204) and the other end connected to the waste water tank (230), and a first valve installed on the waste water pipe, one end of which is connected to the spray pipe (225). and a water supply pipe whose other end is connected to the water supply tank, a third valve installed on the water supply pipe, and a third water pump installed on the water supply pipe; the welding assembly (203) comprises a welding frame (101) installed on the frame (200), a cylinder (102) installed on the top of the welding frame (101), a support plate (103) installed on the telescopic rod of the cylinder (102), and a welding head (104) installed on the support plate (103); the cooling device also comprises a second cooling assembly (108) installed on the support plate (103); The second cooling component (108) comprises a pair of air ducts (134) mounted on the support plate (103) and respectively located on the front and rear sides of the welding head (104), a plurality of air outlets (135) mounted on the air ducts (134), a cooling fan (136) mounted on the top of the welding frame (101), an air supply pipe (137) connected to the cooling fan (136) at one end and connected to the air duct (134) at the other end, a fourth valve mounted on the air supply pipe (137), and a pump body mounted on the air supply pipe (137); the distance between the hinge point of the first rod and the third rod and the hinge point of the second rod and the third rod is L4, the distance between the center of the clamping gear and the hinge point of the second rod and the support rod is L5, and L4=L5.

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