Framework welding equipment and process for aluminum alloy doors and windows

Abstract

The invention relates to the technical field of welding equipment, in particular to framework welding equipment and process for aluminum alloy doors and windows, which comprises a horizontal beam frame, a smoke collecting assembly and a sliding maintenance assembly, an accessory mounting seat is horizontally and movably arranged on one side of the horizontal beam frame through a feeding assembly, and a positioning guide frame is arranged at the lower end of one side of the accessory mounting seat; a welding gun mounting moving seat is horizontally and movably inserted into the lower end of the positioning guide frame through a lead screw, stable and horizontal movement of the accessory mounting seat along the horizontal beam frame can be achieved through the feeding assembly, multi-point-position welding auxiliary operation of welding operation is achieved, and then under the cooperation effect of the sliding maintenance assembly and a high-speed circulation groove with high-pressure air flow inside, the welding gun can be stably and stably mounted on the accessory mounting seat. According to the feeding assembly, a sliding supporting rail and a feeding rack of the feeding assembly can be automatically lubricated, the use stability of the feeding assembly is improved, in addition, a high-speed circulation groove where high-speed airflow passes can be matched with a collecting groove, smoke generated during welding is collected and treated as much as possible, and the welding environment quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a skeleton welding equipment and process for aluminum alloy doors and windows. BACKGROUND

[0002] Aluminum alloy door and window welding is a processing technology that locally combines the connecting parts of aluminum alloy door and window profiles. When welding the skeleton of the aluminum alloy door and window, the aluminum alloy door and window skeleton needs to be assembled first and then placed below the welding equipment for welding processing, thereby improving the structural strength, sealing performance and overall aesthetics of the door and window. The prior art patent CN220498024U discloses an aluminum alloy edge welding device, relating to the technical field of aluminum alloy welding equipment. The device includes an operating table and a mounting plate. Two mounting slides are slidably arranged in the rectangular holes on the upper end of the mounting plate. A welding gun is rotatably arranged at the lower end of one of the mounting slides. A rotating box is rotatably arranged at the lower end of the other mounting slide. First motors are arranged on one side of each of the two mounting slides. A third motor output shaft is fixedly connected to the other end of the first screw. The welding gun is fixedly connected to the output end of an electric push rod on one side of the mounting slide. The electric push rod is fixedly arranged on the upper end of the mounting plate. A wire feeding mechanism is arranged in the rotating box to facilitate the feeding of welding wire. A guide mechanism is arranged on the upper end of the operating table to facilitate the guiding and limiting of the welding object. The wire feeding mechanism facilitates the feeding of welding wire. The guide mechanism facilitates the fixing and guiding of the welding object to prevent the object from shifting during welding. The above-mentioned scheme can realize the horizontal conveying of aluminum alloy products through the conveying belt. During the welding of the aluminum alloy skeleton, the welding positions are distributed at multiple nodes. The welding mechanism needs to be moved horizontally and forwardly and backwardly in cooperation with the visual recognition module and the horizontal feeding conveying structure during welding. Then, the movement of the aluminum alloy skeleton is welded at multiple positions in cooperation with the conveying belt. During the welding operation, the feeding movement structure of the welding structure is prone to excessive wear after long-term use, which is not convenient for automatic maintenance. In addition, due to the welding product, the welding occupies a large area, which is not easy to handle the welding fume, and is not convenient to use. SUMMARY

[0003] The present application aims to provide a skeleton welding equipment and process for aluminum alloy doors and windows to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a skeleton welding equipment for aluminum alloy doors and windows, comprising: A horizontal beam frame is provided with a fitting mounting seat on one side through a feeding assembly. A positioning guide frame is arranged on one side of the lower end of the fitting mounting seat. A welding gun mounting and moving seat is horizontally movably connected to the lower end of the positioning guide frame through a lead screw. The feeding assembly includes a sliding mounting seat, a feeding rack and a feeding moving gear. The smoke collection assembly comprises a collection groove and a high-speed flow groove, the high-speed flow groove is arranged on one side of the accessory mounting seat, the collection groove is arranged on the lower end of the welding gun mounting mobile seat away from the horizontal beam frame, and the high-speed flow groove and the collection groove are connected. The sliding maintenance assembly is arranged on one side of the accessory mounting seat, and comprises a shunt air groove and three extension pipes.

[0005] Preferably, the sliding mounting seat is arranged on one side of the accessory mounting seat, and the horizontal beam frame is provided with sliding support rails at the upper and lower ends of one side.

[0006] Preferably, the horizontal beam frame is provided with a feeding rack between the two sliding support rails, the upper end of the feeding rack is provided with a plurality of reference teeth, a gear groove is formed in the accessory mounting seat, a worm gear is rotatably arranged in the gear groove, a gear synchronous shaft is horizontally arranged at the center of one side of the worm gear, the gear synchronous shaft penetrates the centers of the accessory mounting seat and the sliding mounting seat and is provided with a feeding movement gear, and the lower end of the feeding movement gear is connected to the reference teeth at the upper end of the feeding rack.

[0007] Preferably, a control worm is vertically inserted into one side of the accessory mounting seat, the control worm is inserted into the gear groove on one side, and the control worm is connected to the worm gear in the gear groove.

[0008] Preferably, the high-speed flow groove is vertically formed in the accessory mounting seat away from the control worm, the accessory mounting seat is provided with an inner recessed combined groove at the lower end of the high-speed flow groove, an air source connector is inserted into the inner recessed combined groove, the upper end of the air source connector is connected to the lower end of the high-speed flow groove, a plurality of inclined fine grooves are formed in the high-speed flow groove away from the horizontal beam frame, a collection groove is formed in the welding gun mounting mobile seat away from the horizontal beam frame, a plurality of suction hoses are inserted into the collection groove penetrating the welding gun mounting mobile seat, one end of the plurality of suction hoses is connected to the plurality of inclined fine grooves, and the diameter of the inclined fine grooves is smaller than the diameter of the high-speed flow groove.

[0009] Preferably, the upper end of the high-speed flow channel of the accessory mounting seat is provided with an electrically controlled three-way ball valve, a switching sealing ball is rotatably arranged in the electrically controlled three-way ball valve, a first air passage is vertically formed in the center of the switching sealing ball, a second air passage is formed in the switching sealing ball, a shunt air groove is vertically formed in one side of the accessory mounting seat close to the high-speed flow channel, a connecting air pipe is connected to one side of the switching sealing ball, one end of the connecting air pipe is connected to the shunt air groove, when the high-speed flow channel is connected to the shunt air groove, the second air passage corresponds to the high-speed flow channel, and one side of the first air passage corresponds to the connecting air pipe.

[0010] Preferably, the three extension pipes are horizontally arranged above the sliding mounting seat close to the feeding rack and the two sliding support rails, the sliding mounting seat is horizontally formed in the extension pipes to form a pushing oil groove, three external grooves are horizontally and vertically formed in one side of the shunt air groove close to the sliding mounting seat, and the sliding mounting seat is horizontally provided with a butt plug on one side of each external groove, the three butt plugs are respectively inserted into the three external grooves, and the three butt plugs are respectively connected to the three pushing oil grooves.

[0011] Preferably, the sliding mounting seat is vertically provided with an oil supplement groove on one side of the three pushing oil grooves, the oil supplement groove is provided with an oil supplement hose at the upper end, the accessory mounting seat is provided with an oil storage groove at the center of the upper end, one end of the oil supplement hose is connected to the lower end of the oil storage groove, and the oil storage groove is higher than the horizontal height of the sliding mounting seat.

[0012] Preferably, the pushing oil groove is provided with a guide partition plate away from the extension pipe on one side, a piston synchronization rod is movably inserted into the center of the guide partition plate, the two ends of the piston synchronization rod are respectively provided with a gas proximity piston and a pushing sealing piston, the pushing sealing piston is arranged close to the oil supplement groove, the oil supplement groove is located between the pushing sealing piston and the extension pipe, the length of the pushing sealing piston is greater than the diameter of the oil supplement groove, a return spring is sleeved on the piston synchronization rod between the gas proximity piston and the guide partition plate, and a one-way valve is inserted into the extension pipe.

[0013] A process for welding the framework of aluminum alloy doors and windows using a welding equipment, comprising the following steps: Step one: when the feeding moving gear rotates, the reference teeth of the feeding moving gear and the feeding rack are engaged, at this time, the accessory mounting seat can be horizontally slid along the sliding support rail and the sliding support sleeve together with the welding gun mounting moving seat and the sliding mounting seat, and the aluminum alloy door and window frame horizontally conveyed below is welded; Step two: the gas source connector inputs high-speed flow gas into the high-speed flow channel, under the principle action of the low pressure generated by the high-speed airflow, the inclined fine groove connects the collection groove position through the suction hose to negative pressure suction the air in the collection groove position into the high-speed flow channel, and then the air is collected from the upper side of the high-speed flow channel; Step three: the high-speed airflow in the flow-through groove passes through the electrically controlled three-way ball valve and enters the shunt gas groove from the adapter pipe; the high-pressure airflow entering the shunt gas groove can enter the three push oil grooves through the external groove; Step four: the airflow entering the push oil groove can push the air piston and the push sealing piston to move to the one-way valve position; when the end of the push sealing piston passes through the oil supplement groove and continues to advance, part of the lubricating oil in the push oil groove breaks through the one-way valve and drips on the joint of the sliding support rail and the sliding support sleeve and above the reference teeth of the feed rack.

[0014] Compared with the prior art, the beneficial effects of the present application are: When the device is in use, the stable horizontal movement of the accessory mounting seat along the horizontal beam frame can be realized through the feeding assembly, the multi-point welding auxiliary operation of the welding operation is realized, then the sliding support rail and the feed rack of the feeding assembly can be automatically lubricated through the cooperation of the sliding maintenance assembly and the high-speed flow-through groove with high-pressure airflow, the use stability of the feeding assembly is improved, in addition, the high-speed flow-through groove through which the high-speed airflow passes can cooperate with the collection groove to collect and process the smoke and dust generated during welding as much as possible, and the welding environment quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a first perspective view of the structure of the present application. Figure 2 It is a first perspective view of the structure of the present application. Figure 1 Figure 3 It is a second perspective view of the structure of the present application. Figure 4 It is a second perspective view of the structure of the present application. Figure 3 Figure 5 It is a partial side sectional view of the structure of the present application. Figure 6 It is a partial side sectional view of the structure of the present application. Figure 5 Figure 7 It is a schematic view of the high-speed flow-through groove and the extension pipe communication structure of the present application. Figure 8 It is a schematic view of the D part of the present application. Figure 7 Figure 9 It is a schematic view of the E part of the present application. Figure 8 Figure 10 It is a schematic view of the F part of the present application. Figure 7 Figure 11 It is a schematic view of the feeding movement gear connection control of the present application. Figure 12 It is a schematic view of the feeding movement gear connection control of the present application. Figure 11 ​​​​​​G site schematic diagram.

[0016] In the figure: horizontal beam frame 1, accessory mounting seat 2, positioning guide frame 3, welding gun mounting moving seat 4, sliding mounting seat 5, sliding support rail 7, sliding support sleeve 8, feeding rack 9, gear groove 10, worm gear 11, gear synchronization shaft 12, feeding moving gear 13, control worm 14, high-speed flow-through groove 15, concave combination groove 16, air source connector 17, inclined fine groove 18, collection groove 19, suction hose 20, electric control three-way ball valve 21, switching sealing ball 22, first ventilation groove 23, second ventilation groove 24, shunt gas groove 25, adapter air pipe 26, extension pipe 27, pushing oil groove 28, external connection groove 29, piston synchronization rod 30, temporary air piston 31, pushing sealing piston 32, reset spring 33, oil supplement groove 34, oil storage groove 35, oil supplement hose 36, one-way valve 37. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0018] Please refer to the drawings in the embodiments of the present application Figures 1-12 The present application provides the following technical solutions.

[0019] Example 1: A welding device for the frame of aluminum alloy doors and windows includes a horizontal beam frame 1. A component mounting seat 2 is horizontally movably mounted on one side of the horizontal beam frame 1 via a feed assembly. A positioning guide frame 3 is located at the lower end of one side of the component mounting seat 2. A welding torch mounting movable seat 4 is horizontally movably connected to the lower end of the positioning guide frame 3 via a lead screw. The feed assembly includes a sliding mounting seat 5, a feed rack 9, and a feed moving gear 13. The sliding mounting seat 5 is located on one side of the component mounting seat 2. Sliding support rails 7 are horizontally mounted at both the upper and lower ends of one side of the horizontal beam frame 1. The upper and lower ends of one side of the seat 5 are horizontally provided with sliding support sleeves 8. The two sliding support sleeves 8 of the sliding mounting seat 5 are distributed and horizontally movably sleeved with two sliding support rails 7. A feed rack 9 is horizontally provided on one side of the horizontal beam frame 1 and located between the two sliding support rails 7. The upper end of the feed rack 9 is provided with several reference teeth. A gear groove 10 is opened in the accessory mounting seat 2. A worm gear 11 is rotatably provided in the gear groove 10. A gear synchronous shaft 12 is horizontally provided at the center of one side of the worm gear 11. The gear synchronous shaft 12 rotatably passes through the accessory mounting seat 2 and the sliding mounting seat 5. The center of the device is equipped with a feed gear 13, and the lower end of the feed gear 13 meshes with the reference teeth at the upper end of the feed rack 9. A control worm 14 is vertically inserted into one side of the accessory mounting base 2. One side of the control worm 14 is inserted into the gear groove 10, and the side of the control worm 14 in the gear groove 10 meshes with the worm gear 11. The upper end of the control worm 14 passes through the accessory mounting base 2 and is equipped with a servo motor. When the servo motor drives the control worm 14 to rotate, the control worm 14 can drive the gear groove 10 to rotate. At this time, the gear groove 10... The feed moving gear 13 can be driven to rotate by the gear synchronous shaft 12. When the feed moving gear 13 rotates, since the feed moving gear 13 meshes with the reference teeth of the feed rack 9, the accessory mounting seat 2, together with the welding gun mounting moving seat 4 and the sliding mounting seat 5, can slide horizontally along the sliding support rail 7 and the sliding support sleeve 8, so that the accessory mounting seat 2 can be moved and fed to a suitable processing position to perform welding operations on the aluminum alloy door and window frame conveyed horizontally below. The welding gun head is installed at the end of the welding gun mounting moving seat 4 away from the horizontal beam 1.

[0020] The smoke collection assembly comprises a collection groove 19 and a high-speed flow passage 15. The high-speed flow passage 15 is arranged on one side of the accessory mounting seat 2, and the collection groove 19 is arranged on the lower end of the welding gun mounting movable seat 4 away from the horizontal beam frame 1. The high-speed flow passage 15 and the collection groove 19 are connected. The high-speed flow passage 15 is vertically arranged on the side of the accessory mounting seat 2 away from the control worm 14. The accessory mounting seat 2 is provided with an inner recess combined groove 16 at the lower end of the high-speed flow passage 15. The air source connector 17 is inserted into the inner recess combined groove 16. The upper end of the air source connector 17 is connected with the lower end of the high-speed flow passage 15. A plurality of inclined fine grooves 18 are arranged in the high-speed flow passage 15 away from the horizontal beam frame 1. The collection groove 19 is arranged on the lower end of the welding gun mounting movable seat 4 away from the horizontal beam frame 1. A plurality of suction hoses 20 are inserted into the collection groove 19 at the upper end of the welding gun mounting movable seat 4. The ends of the suction hoses 20 away from the welding gun mounting movable seat 4 are respectively connected with the inclined fine grooves 18. The diameter of the inclined fine grooves 18 is smaller than that of the high-speed flow passage 15. When the air source connector 17 is connected with the air compressor device of high-pressure gas, the air source connector 17 can input high-speed flow gas into the high-speed flow passage 15. The air in the collection groove 19 connected with the suction hoses 20 is lifted and sucked into the high-speed flow passage 15 under the action of the low pressure generated by the high-speed airflow. Then, the air is collected from the top of the high-speed flow passage 15.

[0021] The embodiment two is based on the embodiment one, and the long-time horizontal sliding of the accessory mounting seat 2 is automatically maintained by setting a sliding maintenance assembly. The sliding maintenance assembly is arranged on one side of the accessory mounting seat 2, and the sliding maintenance assembly comprises a shunt air groove 25 and three extension pipes 27. The shunt air groove 25 is arranged in the accessory mounting seat 2, and the three extension pipes 27 are respectively arranged on one side of the sliding mounting seat 5. The shunt air groove 25 is in communication with the three extension pipes 27. The upper end of the accessory mounting seat 2 is inserted into the high-speed flow channel 15, and the high-speed flow channel 15 is provided with an electrically-controlled three-way ball valve 21. The electrically-controlled three-way ball valve 21 is rotatably provided with a switching sealing ball 22. A first air channel 23 is vertically and centrally formed in the switching sealing ball 22. A second air channel 24 is formed in the switching sealing ball 22. A shunt air groove 25 is vertically formed in the accessory mounting seat 2, close to the high-speed flow channel 15. A switching air pipe 26 is connected and inserted on one side of the switching sealing ball 22. One end of the switching air pipe 26 is in communication with the shunt air groove 25. When the high-speed flow channel 15 is in communication with the shunt air groove 25, the second air channel 24 corresponds to the high-speed flow channel 15. One side of the first air channel 23 corresponds to the switching air pipe 26. In the normal welding operation, the first air channel 23 of the switching sealing ball 22 is linearly and directly connected with the high-speed flow channel 15. At this time, the high-speed airflow passing through the high-speed flow channel 15 can smoothly pass through the switching sealing ball 22 of the electrically-controlled three-way ball valve 21. When the switching sealing ball 22 rotates in the electrically-controlled three-way ball valve 21, one end of the first air channel 23 is blocked, and the other end is connected with the switching air pipe 26. The first air channel 23 is connected with the high-speed flow channel 15 through the second air channel 24. At this time, part of the high airflow is sprayed from the inclined fine groove 18, and part of the high airflow enters the shunt air groove 25 from the switching air pipe 26. The high-pressure airflow sprayed from the collecting groove 19 can disturb the air at the position of the welding gun and assist in cooling the welding gun head. If the welding gun head is a conventional tiltable inclined gun head, the end of the welding gun head can be inclined to be directly below the collecting groove 19, thereby achieving more direct auxiliary cooling.

[0022] The three extension pipes 27 are horizontally arranged above the sliding mounting seat 5, close to the feeding rack 9 and the two sliding support rails 7. The extension pipe 27 horizontally forms a pushing oil groove 28 in the sliding mounting seat 5. The shunt air groove 25 horizontally and centrally penetrates three external grooves 29 close to the sliding mounting seat 5. The sliding mounting seat 5 is horizontally provided with a butt plug on one side of the external groove 29. The three butt plugs are respectively inserted into the three external grooves 29, and the three butt plugs are respectively in communication with the three pushing oil grooves 28. The high-pressure airflow entering the shunt air groove 25 can enter the three pushing oil grooves 28 through the external grooves 29.

[0023] The side of the sliding mounting seat 5 is vertically communicated with three push oil grooves 28, and an oil supplement groove 34 is arranged in the side. The upper end of the oil supplement groove 34 is connected with an oil supplement hose 36. The upper end of the accessory mounting seat 2 is centrally provided with an oil storage groove 35. One end of the oil supplement hose 36 is connected with the lower end of the oil storage groove 35. The oil storage groove 35 is higher than the horizontal height of the sliding mounting seat 5. The push oil groove 28 is provided with a guide partition plate away from the extension pipe 27. The center of the guide partition plate is horizontally movably connected with a piston synchronization rod 30. The two ends of the piston synchronization rod 30 are respectively provided with a temporary gas piston 31 and a push sealing piston 32. The push sealing piston 32 is arranged close to the oil supplement groove 34. The oil supplement groove 34 is located between the push sealing piston 32 and the extension pipe 27. The length of the push sealing piston 32 is greater than the diameter of the oil supplement groove 34. The piston synchronization rod 30 is sleeved with a reset spring 33 between the temporary gas piston 31 and the guide partition plate. The extension pipe 27 is movably connected with a one-way valve 37. The oil supplement groove 34 is always filled with lubricating oil under the connection of the oil supplement hose 36. At this time, the push oil groove 28 between the push sealing piston 32 and the one-way valve 37 is filled with lubricating oil. When the flow of the high-pressure gas flow sent by the high-speed flow channel 15 is greater than the displacement of the collection groove 19, the gas pressure in the shunt gas groove 25 gradually increases. At this time, the high-pressure gas flow in the shunt gas groove 25 enters the push oil groove 28 and can push the temporary gas piston 31 and the push sealing piston 32 to move to the position of the one-way valve 37. When the end of the push sealing piston 32 passes through the oil supplement groove 34 and continues to advance, part of the lubricating oil in the push oil groove 28 breaks through the one-way valve 37 and drops on the joint between the sliding support rail 7 and the sliding support sleeve 8 and above the reference tooth of the feed rack 9. With the horizontal sliding of the sliding support sleeve 8 and the rotation of the feed movement gear 13, the sliding support rail 7 and the feed rack 9 are automatically lubricated and maintained. The push sealing piston 32 always seals the oil supplement groove 34 when pushing the lubricating oil. After the pushing is completed, the gas pressure and the flow of the high-speed flow channel 15 are reduced. Under the action of the reset spring 33, the push sealing piston 32 is retracted and reset. Through frequent pushing, the feed rack 9 can be lubricated and maintained in all directions with the horizontal sliding of the accessory mounting seat 2.

[0024] A process for welding an aluminum alloy door and window frame using a skeleton welding device, comprising the following steps: Step one: when the feed movement gear 13 rotates, the feed movement gear 13 is meshed with the reference tooth of the feed rack 9. At this time, the accessory mounting seat 2 can be horizontally slid along the sliding support rail 7 and the sliding support sleeve 8 together with the welding gun mounting and moving seat 4 and the sliding mounting seat 5 to perform welding work on the aluminum alloy door and window frame horizontally conveyed below. Step two: the gas source joint 17 inputs high-speed flow gas into the high-speed flow channel 15, and the inclined thin channel 18 is connected to the collection channel 19 through the suction hose 20, and the air in the collection channel 19 is sucked into the high-speed flow channel 15 under the action of the low pressure generated by the high-speed gas flow, and then the air is collected from the top of the high-speed flow channel 15; Step three: the gas flow in the high-speed flow channel 15 enters the shunt gas channel 25 through the electrically controlled three-way ball valve 21, and the high-pressure gas flow in the shunt gas channel 25 can enter the three push oil channels 28 through the external channel 29; Step four: the gas flow entering the push oil channel 28 can push the air piston 31 and the push sealing piston 32 to move to the one-way valve 37 position, when the end of the push sealing piston 32 passes through the oil supplement channel 34 and continues to advance, part of the lubricating oil in the push oil channel 28 breaks through the one-way valve 37 and drops on the joint of the sliding support rail 7 and the sliding support sleeve 8 and above the reference tooth of the feed rack 9.

[0025] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A skeleton welding apparatus for aluminum alloy doors and windows, characterized by, The utility model relates to a welding gun movable installation device, including: Horizontal beam frame (1), one side of horizontal beam frame (1) is equipped with accessory mounting seat (2) through horizontal activity of feeding assembly, the lower end of one side of accessory mounting seat (2) is equipped with positioning guide frame (3), the lower end of positioning guide frame (3) is horizontally movably inserted with welding gun mounting mobile seat (4) through screw rod, and feeding assembly includes sliding mounting seat (5), feeding rack (9) and feeding mobile gear (13); Smoke collection assembly, the smoke collection assembly includes collection groove (19) and high-speed flow channel (15), high-speed flow channel (15) is located at one side of accessory mounting seat (2), collection groove (19) is located at the lower end of one side of welding gun mounting mobile seat (4) away from horizontal beam frame (1), and high-speed flow channel (15) and collection groove (19) are communicated; Sliding maintenance assembly, the sliding maintenance assembly is located at one side of accessory mounting seat (2), and the sliding maintenance assembly includes shunt air groove (25) and three extension pipes (27), shunt air groove (25) is located in accessory mounting seat (2), three extension pipes (27) are respectively located at one side of sliding mounting seat (5), and shunt air groove (25) is communicated with three extension pipes (27), and high-speed flow channel (15) and shunt air groove (25) are selectively communicated through switchable gas path control.

2. The aluminum alloy door and window skeleton welding device according to claim 1, characterized in that: The sliding mounting seat (5) is located at one side of the accessory mounting seat (2), and the horizontal beam frame (1) is horizontally provided with sliding support rails (7) at the upper and lower ends of one side, and the sliding mounting seat (5) is horizontally provided with sliding support sleeves (8) at the upper and lower ends of one side, and the two sliding support sleeves (8) of the sliding mounting seat (5) are horizontally movably sleeved with the two sliding support rails (7).

3. The aluminum alloy door and window skeleton welding device according to claim 2, characterized in that: The horizontal beam frame (1) is horizontally provided with a feeding rack (9) on one side surface and between the two sliding support rails (7), the upper end of the feeding rack (9) is provided with a plurality of reference teeth, a gear groove (10) is formed in the accessory mounting seat (2), a worm gear (11) is rotatably arranged in the gear groove (10), a gear synchronous shaft (12) is horizontally arranged at one side of the worm gear (11), the gear synchronous shaft (12) is rotatably penetrated through the centers of the accessory mounting seat (2) and the sliding mounting seat (5) and provided with a feeding mobile gear (13), and the lower end of the feeding mobile gear (13) is meshed and connected with the reference teeth at the upper end of the feeding rack (9).

4. The aluminum alloy door and window skeleton welding device according to claim 3, characterized in that: A control worm (14) is vertically inserted in one side of the accessory mounting seat (2), the control worm (14) is inserted into the gear groove (10) on one side, and the control worm (14) is meshed and connected with the worm gear (11) on one side in the gear groove (10).

5. The aluminum alloy door and window skeleton welding device according to claim 4, characterized in that: The high-speed flow groove (15) is vertically arranged on the side of the accessory mounting seat (2) away from the control worm (14), the lower end of the accessory mounting seat (2) is provided with an inner recessed combined groove (16), the inner recessed combined groove (16) is inserted with the air source connector (17), the upper end of the air source connector (17) is communicated with the lower end of the high-speed flow groove (15), the high-speed flow groove (15) is inclined downward on the side away from the horizontal beam frame (1) and is provided with a plurality of inclined fine grooves (18), the lower end of the welding gun mounting movable seat (4) away from the horizontal beam frame (1) is provided with a collecting groove (19), the upper end of the collecting groove (19) penetrates the welding gun mounting movable seat (4) and is inserted with a plurality of suction hoses (20), one end of the suction hose (20) away from the welding gun mounting movable seat (4) is communicated with the inclined fine groove (18) and is inserted, and the diameter of the inclined fine groove (18) is smaller than that of the high-speed flow groove (15).

6. The aluminum alloy door and window skeleton welding device according to claim 5, characterized in that: The upper end of the accessory mounting seat (2) is inserted with the high-speed flow groove (15) and is provided with an electrically controlled three-way ball valve (21), the electrically controlled three-way ball valve (21) is rotatably provided with a switching sealing ball (22), the center of the switching sealing ball (22) is vertically and penetratively provided with a first air passage (23), the switching sealing ball (22) is provided with a second air passage (24), the side of the accessory mounting seat (2) close to the high-speed flow groove (15) is vertically provided with a shunt air groove (25), one side of the switching sealing ball (22) is communicated and inserted with an adapter air pipe (26), one end of the adapter air pipe (26) is communicated and inserted with the shunt air groove (25), when the high-speed flow groove (15) is communicated with the shunt air groove (25), the second air passage (24) corresponds to the high-speed flow groove (15), and one side of the first air passage (23) corresponds to the adapter air pipe (26).

7. The aluminum alloy door and window skeleton welding device according to claim 6, characterized in that: The three extension pipes (27) are horizontally arranged above the sliding mounting seat (5) close to the feeding rack (9) and the two sliding support rails (7), the extension pipe (27) is horizontally formed in the sliding mounting seat (5) and is provided with a pushing oil groove (28), the shunt air groove (25) is horizontally and penetratively provided with three external grooves (29) close to the sliding mounting seat (5), the sliding mounting seat (5) is horizontally provided with a butt plug on one side of the external groove (29), the three butt plugs are inserted into the three external grooves (29), and the three butt plugs are communicated with the three pushing oil grooves (28).

8. The aluminum alloy door and window skeleton welding device according to claim 7, characterized in that: The shunt air groove (25) is vertically and communicated with the three pushing oil grooves (28) and is provided with an oil supplement groove (34), the upper end of the oil supplement groove (34) is inserted with an oil supplement hose (36), the upper end of the accessory mounting seat (2) is provided with an oil storage groove (35), one end of the oil supplement hose (36) is inserted and communicated with the lower end of the oil storage groove (35), and the oil storage groove (35) is higher than the horizontal height of the sliding mounting seat (5).

9. The aluminum alloy door and window skeleton welding device according to claim 8, characterized in that: The push oil groove (28) is provided with a guide partition plate away from one side of the extension pipe (27), a piston synchronization rod (30) is movably inserted in the center of the guide partition plate, the piston synchronization rod (30) is provided with a temporary gas piston (31) and a push sealing piston (32) at two ends thereof, the push sealing piston (32) is arranged close to an oil supplement groove (34), the oil supplement groove (34) is located between the push sealing piston (32) and the extension pipe (27), the length of the push sealing piston (32) is greater than the diameter of the oil supplement groove (34), a return spring (33) is sleeved between the piston synchronization rod (30) and the temporary gas piston (31), and a one-way valve (37) is movably inserted in the extension pipe (27).

10. A process for welding the skeleton of the aluminum alloy door and window frame using the apparatus according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: Step one: when the feeding moving gear (13) rotates, the feeding moving gear (13) is meshed with the reference tooth of the feeding rack (9), at this time, the accessory mounting seat (2) can slide horizontally along the sliding support rail (7) and the sliding support sleeve (8) together with the welding gun mounting moving seat (4) and the sliding mounting seat (5), and the aluminum alloy door and window frame conveyed horizontally below is welded; Step two: the gas source connector (17) inputs high-speed flowing gas into the high-speed flow channel (15), under the principle of low pressure generated by high-speed gas flow, the inclined fine groove (18) sucks the air in the connected collection groove (19) through the suction hose (20) and then enters the high-speed flow channel (15) under negative pressure, and then the air is collected from the top of the high-speed flow channel (15); Step three: the gas flow in the high-speed flow channel (15) enters the shunt gas groove (25) from the adapter pipe (26) through the adjustment of the electric control three-way ball valve (21), and the high-pressure gas flow entering the shunt gas groove (25) can enter the three push oil grooves (28) through the external groove (29); Step four: the gas flow entering the push oil groove (28) can push the temporary gas piston (31) and the push sealing piston (32) to move to the position of the one-way valve (37), when the end of the push sealing piston (32) passes through the oil supplement groove (34) and continues to advance, part of the lubricating oil in the push oil groove (28) breaks through the one-way valve (37) and drops on the joint of the sliding support rail (7) and the sliding support sleeve (8) and above the reference tooth of the feeding rack (9).

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