Aluminum alloy door and window frame welding device with automatic overturning tool

Abstract

The invention belongs to the technical field of welding, and particularly relates to an aluminum alloy door and window frame welding device with an automatic overturning tool, which comprises an overturning mechanism, a welding mechanism, a polishing and grinding mechanism, a cleaning mechanism, a filtering mechanism, an energy storage mechanism and a control mechanism, the welding mechanism comprises a supporting frame and a welding machine arranged on the supporting frame. The overturning mechanism is used for overturning the frame workpiece; the polishing and grinding mechanism comprises a pneumatic motor and a grinding disc, the pneumatic motor is used for driving the grinding disc, and the air inlet end of the pneumatic motor has a flow adjusting function; the cleaning mechanism comprises a transfer cylinder and an absorption cover which are communicated with the air inlet end of the pneumatic motor; the filtering mechanism comprises a filtering cover and a scraping plate rotationally arranged on the bottom surface of the filtering cover, and the filtering cover is fixedly mounted on the inner wall of the adapter barrel; the energy storage mechanism comprises a clockwork spring, a transmission disc and an induction barrel, the induction barrel is fixedly installed in the adapter barrel, and the transmission disc is controlled to rotate through air pressure of an inner cavity of the induction barrel; through the structural cooperation, the welding quality of the aluminum alloy door and window frame is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of welding, in particular to an aluminum alloy door and window frame welding device with automatic overturning tooling. BACKGROUND

[0002] Aluminum alloy door and window frames are widely used in the construction field due to their light weight, high strength, corrosion resistance and other advantages. The welding quality directly determines the structural stability and service life of the door and window. During the welding process of the aluminum alloy door and window frame, multiple butt joints and corner parts of the frame need to be continuously welded. Due to the dispersion of the welding positions, the workpiece must be overturned by the overturning tooling to achieve comprehensive welding of each welding surface.

[0003] To ensure the welding quality, the aluminum alloy welding surface needs to be cleaned before welding to remove the surface oxide film, dirt and impurities. Aluminum has active chemical properties and is easy to react with air to form a dense oxide film. The melting point of this oxide film is much higher than that of the aluminum base material. If it is not removed, it will hinder the fusion of the weld, resulting in incomplete penetration, cracks and other defects. However, in the existing welding process, only one-time cleaning is performed before the first welding. The welding slag and spatter generated by the previous welding will directly adhere to the unwelded surface when the workpiece is overturned for welding of other surfaces. At the same time, the high temperature of welding will accelerate the secondary oxidation of the unwelded surface, forming a new oxide film. These immediate contaminants can seriously affect the weld formation and fusion quality of subsequent welding, resulting in a low welding qualification rate of door and window frames in batch production.

[0004] In addition, a large amount of fine dust will be generated during the cleaning of aluminum alloy polishing. If these dusts diffuse in the workshop, they will not only pollute the working environment, but also be inhaled by operators, endangering their occupational health. Therefore, dust extraction needs to be carried out simultaneously during the welding process. The existing dust removal method mainly uses a structure of suction and filter layer filtration. However, in common designs, the filter layer is cleaned simultaneously while the dust is being sucked. This simultaneous cleaning method, on the one hand, the cleaning action will disrupt the stability of the negative pressure of the suction system, resulting in a decrease in dust suction efficiency, and some dust cannot be effectively captured. On the other hand, the simultaneous cleaning cannot completely remove the dry dust attached to the surface of the filter layer, which can easily cause dust accumulation and clogging of the filter hole, affecting the filtration effect and continuous operation of the system.

[0005] Therefore, the application provides an aluminum alloy door and window frame welding device with automatic overturning tooling. SUMMARY

[0006] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the aluminum alloy door and window frame welding device with automatic turnover tooling comprises a turnover mechanism, a welding mechanism, a polishing mechanism, a cleaning mechanism, a filtering mechanism, an energy storage mechanism and a control mechanism; The welding mechanism comprises a support frame and a welding machine arranged on the support frame. The turnover mechanism is used for overturning the frame workpiece. The polishing mechanism comprises a pneumatic motor and a grinding disc, the pneumatic motor is used for driving the grinding disc, and the air inlet end of the pneumatic motor has a flow adjusting function. The cleaning mechanism comprises an adapter cylinder and an absorption cover in communication with the air inlet end of the pneumatic motor. The filtering mechanism comprises a filter cover and a scraper rotatably arranged on the bottom surface of the filter cover, and the filter cover is fixedly installed on the inner wall of the adapter cylinder. The energy storage mechanism comprises a clockwork, a transmission disc and an induction cylinder, the induction cylinder is fixedly installed in the inner chamber of the adapter cylinder, the transmission disc is rotated by the air pressure in the inner chamber of the induction cylinder, and one end of the transmission disc is fixedly connected with the clockwork. The control mechanism comprises a limiting strip and a bearing disc, the other end of the clockwork is fixedly connected with the bearing disc, the outer wall of the bearing disc is provided with an opening for clamping the limiting strip, and the sliding of the limiting strip is controlled by the air pressure in the inner chamber of the adapter cylinder. The bearing disc and the scraper have the same movement state.

[0008] Preferably, the upper end of the support frame is fixedly installed with a double-shaft sliding frame, the outer wall of the double-shaft sliding frame is slidably provided with a loading table, the upper end surface of the loading table is fixedly installed with a control cylinder, the bottom surface of the loading table is fixedly installed with a mounting box, and the pneumatic motor and the adapter cylinder are installed on the inner wall of the mounting box. The control cylinder is provided with two control cylinders, one of which is used for controlling the lifting of the welding machine, and the other is used for controlling the lifting of the mounting box.

[0009] Preferably, the outer wall of the mounting box is slidably installed with a storage box slidably inserted with the adapter cylinder, the bottom surface of the adapter cylinder is fixedly installed with a connecting pipe, and the other end of the connecting pipe is in communication with the inner chamber of the absorption cover. The inner wall of the storage box is fixedly installed with a fan-shaped piece, the fan-shaped piece is made of elastic material and is obliquely arranged, and a plurality of fan-shaped pieces are evenly arranged in a ring shape. The fan-shaped piece is located between the connecting pipe and the adapter cylinder.

[0010] Preferably, the inner chamber of the induction cylinder is slidably installed with a sliding plug, and the outer wall of the sliding plug is elastically connected with the inner wall of the induction cylinder. The bottom surface of the sliding plug is installed with a transmission sleeve through a one-way bearing, and the inner wall of the transmission sleeve is fixedly installed with a ball. The inner wall of the induction cylinder is rotatably installed with a transmission shaft through a one-way bearing, and the outer wall of the transmission shaft is provided with a spiral groove in sliding cooperation with the ball. The bottom surface of the transmission shaft is fixedly connected with the upper end surface of the transmission disc.

[0011] Preferably, the outer wall of the adapter cylinder is fixedly installed with a connecting cylinder, one end of the connecting cylinder is connected with the air inlet end of the pneumatic motor through a conduit; The inner wall of the connecting cylinder is elastically installed with a conical cover, one end of the conical cover is fixedly connected with the outer wall of the limiting strip, the limiting strip is made of elastic material, and the upper end is fixedly installed with a limiting inclined block.

[0012] Preferably, the inner wall of the filter cover is fixedly installed with a supporting strip, the inner wall of the supporting strip is rotatably installed with a transmission pin, the bottom of the transmission pin is fixedly connected with the outer wall of the scraper, and the upper end surface of the transmission pin is fixedly connected with the bottom surface of the bearing disc. The supporting strip is of an elastic structure, and the upper end surface is fixedly installed with a reinforcing ring, the upper end surface of the reinforcing ring is provided with a groove, the radial outer wall of the transmission pin is fixedly installed with an elastic strip, and the bottom surface of the elastic strip is fixedly installed with a protrusion matched with the groove.

[0013] Preferably, the bottom surface of the absorption cover is fixedly installed with an arc-shaped plate, the inner wall of the absorption cover is rotatably installed with a mounting ring, and the inner wall of the mounting ring is fixedly installed with a guide vane. The inner wall of the connecting pipe is rotatably installed with an axial flow impeller, and the axial end center position of the axial flow impeller is fixedly connected with the axial end center position of the mounting ring. The radial outer wall of the mounting ring is fixedly installed with a connecting rope, and the other end of the connecting rope is fixedly installed with a hammer.

[0014] Preferably, the overturning mechanism comprises a lifting cylinder, a control box and a fixing frame for fixing a workpiece. The lifting cylinder is fixedly installed on the outer wall of the supporting frame, and the movable end is fixedly connected with the outer wall of the control box, the control box is internally provided with a motor and is used for controlling the rotation of the fixing frame, and the fixing frame is slidingly installed on the side wall of the supporting frame.

[0015] The beneficial effects of the present application are as follows: 1. The pneumatic motor provided with the built-in electromagnetic valve, the grinding disc, the adapter cylinder and the absorption cover can drive the grinding disc to selectively polish the new contaminated welding surface after welding one side of the workpiece, the electromagnetic valve can reciprocatingly adjust the air inlet to realize dynamic switching of the polishing force, strong force can quickly break the welding slag and secondary oxidation film generated in the previous welding, and weak force can avoid scratches and wall thickness thinning of the aluminum alloy base material, the workpiece is directly welded after polishing, defects such as incomplete penetration and pores caused by uncleaned contaminants are avoided, dust is immediately sucked through the absorption cover generated by the negative pressure of the adapter cylinder, accumulation of dust is avoided to speed up oxidation of the welding surface, secondary cleaning is not needed, the clean metal luster of the welding surface is maintained, and a uniform and flat fusion base is provided for the weld, and the welding quality of the aluminum alloy door and window frame is significantly improved.

[0016] 2.The application is characterized in that the inductive cylinder, scraper, sector and hammer are arranged, the mechanical energy generated by the change of the air intake of the air motor is stored by the spring, after the air motor stops, the spring releases the elastic potential energy to drive the scraper to rotate and remove the dust on the filter cover, avoids the cleaning damage to the negative pressure stability of the adapter cylinder during operation, the elastic strip rotates with the transmission pin to generate vibration, combined with the characteristics of throwing and grinding heat to keep the dust dry, greatly reduces the adhesion of the dust, improves the shedding efficiency, prevents the filter hole from being blocked, the sector forms a one-way valve to prevent dust backflow, the guide vane is driven by the axial flow impeller to adjust the suction angle, the hammer rotates with the mounting ring to hit the auxiliary plate of the absorption cover to help the dust to fall off, which improves the workshop operation environment, does not need additional power, prolongs the service life of the filter cover and the scraper, and ensures the continuous operation efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be further described below in combination with the drawings.

[0018] Figure 1 is a schematic diagram of the overall structure of the application; Figure 2 is a structural schematic diagram of the fixed frame in the application; Figure 3 is an installation schematic diagram of the mounting box in the application; Figure 4 is an installation schematic diagram of the adapter cylinder in the application; Figure 5 is a structural schematic diagram of the inductive cylinder in the application; Figure 6 is a structural schematic diagram of the spring in the application; Figure 7 is a structural schematic diagram of the support strip in the application; Figure 8 is an installation schematic diagram of the transmission shaft in the application; Figure 9 is a structural schematic diagram of the sector in the application; Figure 10 is a structural schematic diagram of the mounting ring in the application; Figure 11 is a structural schematic diagram of the axial flow impeller in the application.

[0019] In the diagram: 1. Support frame; 2. Control box; 3. Dual-axis sliding frame; 4. Platform; 5. Control cylinder; 6. Absorption hood; 7. Welding machine; 8. Mounting box; 9. Storage box; 10. Arc plate; 11. Grinding disc; 12. Pneumatic motor; 13. Connecting cylinder; 14. Induction cylinder; 15. Adapter cylinder; 16. Connecting pipe; 17. Filter cover; 18. Limiting strip; 19. Transmission disc; 20. Bearing disc; 21. Reinforcing ring 22. Spring; 23. Limiting wedge; 24. Lifting cylinder; 25. Conical cover; 26. Elastic strip; 27. Drive pin; 28. Scraper; 29. ​​Support strip; 30. Sliding plug; 31. Drive shaft; 32. Drive sleeve; 33. Ball bearing; 34. Spiral groove; 35. Fan-shaped blade; 36. Hammer; 37. Axial flow impeller; 38. Guide vane; 39. Connecting rope; 40. Mounting ring; 41. Fixing bracket. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 11 As shown, the aluminum alloy door and window frame welding device with automatic flipping fixture of the present invention includes a flipping mechanism, a welding mechanism, a polishing mechanism, a cleaning mechanism, a filtering mechanism, an energy storage mechanism and a control mechanism. The welding mechanism includes a support frame 1 and a welding machine 7 mounted on the support frame 1, wherein the welding machine 7 is used to weld aluminum alloy workpieces.

[0022] The flipping mechanism is used to flip the frame workpiece. The flipping mechanism includes a lifting cylinder 24, a control box 2, and a fixing frame 41 for fixing the workpiece. The fixing frame 41 is provided with a clamping plate for holding the workpiece. Before welding, the workpiece to be welded is first fixed to the outer wall of the fixing frame 41 by the clamping plate.

[0023] The lifting cylinder 24 is fixedly installed on the outer wall of the support frame 1, and its movable end is fixedly connected to the outer wall of the control box 2. The lifting cylinder 24 is a common hydraulic cylinder used to adjust the height of the control box 2.

[0024] The control box 2 has a built-in motor, which is used to control the rotation of the fixed frame 41. The fixed frame 41 is slidably installed on the side wall of the support frame 1. The motor built into the control box 2 is connected to the fixed frame 41 through the cooperation of a worm gear and worm, and is used to control the rotation of the fixed frame 41, thereby driving the workpiece to rotate. When the lifting cylinder 24 drives the control box 2 to lift, the fixed frame 41 and the workpiece move up and down.

[0025] The polishing mechanism includes a pneumatic motor 12 and a grinding disc 11. The pneumatic motor 12 is used to drive the grinding disc 11. The grinding disc 11 is fixedly connected to the power output shaft of the pneumatic motor 12, and the rotation of the grinding disc 11 is controlled by the pneumatic motor 12.

[0026] After welding one of the faces of the workpiece, the workpiece is rotated to adjust the workpiece, and the other face to be welded is directed towards the welding machine 7. At this time, due to the previous welding operation, the welding face is contaminated, so the abrasive disc 11 is rotated to polish the face to be welded by the pneumatic motor 12. After polishing, the workpiece is directly welded. Compared with the one-time cleaning of the workpiece before overall welding, the cleaning is more accurate, and the one-time cleaning cannot predict the immediate pollution of the oxide film, welding slag, splashes and other pollution generated by the previous welding. The operation can accurately remove these newly generated pollutants, avoid new pollution generated during the welding process after one-time cleaning, and cause defects such as incomplete penetration, porosity, and slag inclusion, so that the weld is more tightly combined with the base material during the second welding.

[0027] The air inlet end of the pneumatic motor 12 has a flow regulating function. The pneumatic motor 12 is provided with an electromagnetic valve inside, which is used to adjust the air inlet amount of the pneumatic motor 12 in real time. By reciprocating the air inlet amount of the pneumatic motor 12, compared with the local over-polishing or omission problem that may occur during uniform polishing, the polishing pressure is evenly distributed by alternating the force, so that the aluminum alloy welding surface is uniform and consistent, providing a more stable fusion interface for welding. Compared with the continuous high temperature generated by uniform polishing, reciprocating adjustment can reduce the heat accumulation caused by excessive polishing, shorten the overall polishing time, reduce the risk of secondary oxidation of the aluminum alloy welding surface, and has better oxidation control effect than uniform polishing.

[0028] The cleaning mechanism includes an adapter cylinder 15 in communication with the air inlet end of the pneumatic motor 12 and an absorption cover 6. The inner cavity of the adapter cylinder 15 is in communication with the inner cavity of the adapter cylinder 15. When the pneumatic motor 12 is connected with the external air pump and works, negative pressure is generated in the adapter cylinder 15, and then the dust generated by polishing is absorbed by the absorption cover 6.

[0029] The accumulation of aluminum alloy dust on the welding surface is reduced, the oxidation of the dust after contacting with air is avoided, the clean state of the metal luster after polishing is maintained, no additional secondary cleaning process is needed, the operating environment is improved, the aluminum alloy dust is prevented from diffusing in the workshop air and being inhaled by workers, and the occupational health risk is reduced.

[0030] The filtering mechanism includes a filter cover 17 and a scraper 28 rotatably arranged on the bottom surface of the filter cover 17. The filter cover 17 is fixedly installed on the inner wall of the adapter cylinder 15. The filter cover 17 is provided to prevent dust from entering the inside of the pneumatic motor 12 and maintain the stability of the pneumatic motor 12.

[0031] When the filter cover 17 filters dust, dust will inevitably adhere to the inside of the filter cover 17, at which time the dust on the surface of the filter cover 17 is scraped off by rotating the scraper 28, the aluminum alloy dust adhering to the surface of the filter cover 17 is timely removed, dust accumulation is avoided to block the filter holes, the air permeability of the filter cover 17 is maintained, the stability of the negative pressure inside the adapter cylinder 15 is ensured, the suction effect of the absorption cover 6 on the polishing dust is maintained, the air intake of the pneumatic motor 12 caused by blockage is avoided, the stability of the motor speed is ensured, the polishing force always meets the cleaning needs of the aluminum alloy to-be-welded surface, and the polishing quality before welding is indirectly maintained.

[0032] The energy storage mechanism includes a clockwork 22, a transmission disc 19, and an induction cylinder 14, the induction cylinder 14 is fixedly installed inside the adapter cylinder 15, the transmission disc 19 is rotated by the air pressure in the inner cavity of the induction cylinder 14, one end of the transmission disc 19 is fixedly connected with the clockwork 22, the inner cavity of the induction cylinder 14 is in communication with the inner cavity of the adapter cylinder 15, and when the air flow at the intake end of the pneumatic motor 12 is reciprocatingly adjusted, the air pressure in the inner cavities of the adapter cylinder 15 and the induction cylinder 14 reciprocatingly changes.

[0033] The clockwork 22 stores the mechanical energy generated by the change of the air pressure in the inner cavity of the induction cylinder 14 during the polishing operation.

[0034] The control mechanism includes a limiting strip 18 and a bearing disc 20, the radial direction of the bearing disc 20 is not necessarily rotationally connected with the inner wall of the adapter cylinder 15 through a support, the other end of the clockwork 22 is fixedly connected with the bearing disc 20, and the clockwork 22 releases elastic potential energy to control the rotation of the bearing disc 20.

[0035] The outer wall of the bearing disc 20 is provided with an opening for clamping the limiting strip 18, the sliding of the limiting strip 18 is controlled by the air pressure in the inner cavity of the adapter cylinder 15, when the pneumatic motor 12 stops working, the air pressure in the inner cavity of the adapter cylinder 15 is consistent with the air pressure outside, at which time the limiting strip 18 slides to be separated from the opening of the bearing disc 20, and at this time the clockwork 22 controls the rotation of the bearing disc 20.

[0036] The bearing disc 20 and the scraper 28 have the same motion state, when the bearing disc 20 rotates, the scraper 28 is driven to rotate, and then the scraping and cleaning of the filter cover 17 are realized.

[0037] In this embodiment, the air volume of the air inlet end of the pneumatic motor 12 is adjusted to control the air pressure change in the inner cavity of the induction cylinder 14, and the elastic potential energy is stored in the spring 22. During suction, the scraper 28 is fixed, and after shutdown, the elastic potential energy is released to control the scraper 28 to remove the dust on the surface of the filter cover 17. After shutdown, the dust has stopped generating and the adhesion state is stable. At this time, the scraping can more accurately and completely remove the accumulated aluminum alloy dust on the surface of the filter cover 17, avoiding secondary dust dispersion caused by scraping during operation or incomplete scraping. During operation, the scraper 28 remains fixed and does not rub against the filter cover 17, which will not affect the air permeability accuracy of the filter hole. Only during the cleaning gap, the service life of the filter cover 17 and the scraper 28 is prolonged. Finally, it avoids the long-term residence of dust on the surface of the filter cover 17, prevents the caked dust from blocking the filter hole or falling into the pneumatic motor 12, further strengthens the protection of the motor, and maintains its operation stability.

[0038] The upper end of the support frame 1 is fixedly connected with a double-shaft sliding frame 3, and a loading platform 4 is slidingly arranged on the outer wall of the double-shaft sliding frame 3. The loading platform 4 can slide in the horizontal direction forward and backward and left and right (i.e., in the X-axis and Y-axis directions) outside the double-shaft sliding frame 3.

[0039] The upper end surface of the loading platform 4 is fixedly connected with a control cylinder 5, and the control cylinder 5 is an electric telescopic rod. The bottom surface of the loading platform 4 is fixedly connected with a mounting box 8. The pneumatic motor 12 and the adapter cylinder 15 are arranged on the inner wall of the mounting box 8, and the mounting box 8 provides mounting and sliding space for the pneumatic motor 12 and the adapter cylinder 15.

[0040] The control cylinder 5 is provided with two control cylinders 5, one of which is used to control the lifting of the welding machine 7, and the other of which is used to control the lifting of the mounting box 8, so as to control the lifting of the welding machine 7 and the mounting box 8 respectively, so as to complete the welding operation and the cleaning operation of the welding surface respectively.

[0041] As a preferred embodiment of the present application, a storage box 9 slidingly connected with the adapter cylinder 15 is slidingly arranged on the outer wall of the mounting box 8. The bottom of the storage box 9 is provided with an opening.

[0042] The bottom surface of the adapter cylinder 15 is fixedly connected with a connecting pipe 16, and the other end of the connecting pipe 16 is in communication with the inner cavity of the absorption cover 6. The connecting pipe 16 connects the adapter cylinder 15 and the absorption cover 6, so as to absorb the dust generated during polishing through the absorption cover 6.

[0043] The inner wall of the storage box 9 is fixedly connected with a plurality of fan-shaped pieces 35. The fan-shaped pieces 35 are made of elastic material and are arranged obliquely. The fan-shaped pieces 35 are arranged in a ring shape and are evenly arranged. The fan-shaped pieces 35 are rubber pieces.

[0044] The fan-shaped pieces 35 are located between the connecting pipe 16 and the adapter cylinder 15, and the cooperation of the plurality of fan-shaped pieces 35 forms a one-way valve structure for preventing the collected dust in the storage box 9 from flowing back to the inner cavity of the connecting pipe 16. By pulling out the storage box 9, the collected dust inside can be easily removed.

[0045] The inner cavity of the induction cylinder 14 is slidingly installed with a sliding plug 30, the outer wall of the sliding plug 30 is elastically connected with the inner wall of the induction cylinder 14, wherein a spring is fixedly installed on the outer wall of the sliding plug 30, the other end of the spring is fixedly connected with the inner wall of the induction cylinder 14, the upper end of the induction cylinder 14 is provided with an opening, one side of the sliding plug 30 is in air contact with the inner cavity of the adapter cylinder 15, the other side of the sliding plug 30 is in air contact with the outside, and then when the air pressure in the inner cavity of the adapter cylinder 15 is adjusted, the sliding plug 30 is controlled to reciprocate by the elastic force received by the sliding plug 30.

[0046] The bottom surface of the sliding plug 30 is installed with a transmission sleeve 32 through a one-way bearing, the inner wall of the transmission sleeve 32 is fixedly installed with a ball 33, and the sliding plug 30 reciprocates to drive the transmission sleeve 32 to reciprocate.

[0047] The inner wall of the induction cylinder 14 is rotatably installed with a transmission shaft 31 through a one-way bearing, the outer wall of the transmission shaft 31 is provided with a spiral groove 34 in sliding cooperation with the ball 33, and the rotation directions of the two one-way bearings are opposite.

[0048] The transmission sleeve 32 is sleeved on the outer wall of the transmission shaft 31, when the sliding plug 30 slides downward, the transmission sleeve 32 is locked by the corresponding one-way bearing and only slides downward along the vertical direction, at this time the transmission shaft 31 is controlled to rotate through the cooperation of the ball 33 and the spiral groove 34, when the sliding plug 30 slides upward, the transmission shaft 31 is locked and fixed by the corresponding one-way bearing, and at the same time, with the upward sliding of the sliding plug 30, the transmission sleeve 32 rotates, and then when the sliding plug 30 reciprocates, the transmission shaft 31 is controlled to rotate in the same direction.

[0049] The bottom surface of the transmission shaft 31 is fixedly connected with the upper end surface of the transmission disc 19, the transmission disc 19 is driven to rotate through the rotation of the transmission shaft 31, and then the mechanical energy is converted into the elastic potential energy of the clockwork 22, at this time the bearing disc 20 is fixed, and the clockwork 22 stores the elastic potential energy.

[0050] The outer wall of the adapter cylinder 15 is fixedly installed with a connecting cylinder 13, one end of the connecting cylinder 13 is connected with the air inlet end of the pneumatic motor 12 through a conduit, and the inner cavity of the adapter cylinder 15 is connected with the air inlet end of the pneumatic motor 12 through the connecting cylinder 13.

[0051] The inner wall of the connecting cylinder 13 is elastically mounted with a conical cover 25, the tip of the conical cover 25 is away from the adapter cylinder 15, the bottom surface thereof faces the adapter cylinder 15, and a gap is reserved between the bottom surface (the position of the maximum radius) of the conical cover 25 and the inner wall of the connecting cylinder 13 for the gas to pass through, a spring is arranged at the bottom of the conical cover 25, the other end of the spring is fixedly connected with the inner wall of the connecting cylinder 13, and when the gas flows through the connecting cylinder 13, the conical cover 25 moves towards the direction away from the adapter cylinder 15.

[0052] One end of the conical cover 25 is fixedly connected with the outer wall of the limiting strip 18, the limiting strip 18 is made of elastic material, and the upper end is fixedly mounted with a limiting inclined block 23, when the conical cover 25 slides under the influence of the gas flow, the limiting strip 18 is driven to slide until the limiting inclined block 23 slides to the gap on the surface of the conical cover 25, thereby locking the bearing disc 20 when the air motor 12 works, and when the air motor 12 stops working, the conical cover 25 is reset by the elastic force, so that the limiting inclined block 23 slides to the axial end of the bearing disc 20, at this time, the bearing disc 20 is controlled to rotate by the elastic force of the clock spring 22, and then the scraper 28 is controlled to rotate, thereby realizing the cleaning of the filter cover 17.

[0053] In the embodiment, during the reciprocating adjustment of the air intake amount of the air motor 12, the limiting inclined block 23 reciprocally slides along the gap on the surface of the bearing disc 20, but still remains in the gap, in addition, lubrication measures (such as adding steel balls or applying lubricating oil) need to be taken on the side wall of the limiting inclined block 23, for reducing the friction between the side wall of the limiting inclined block 23 and the gap, and preventing the limiting inclined block 23 from being stuck in the gap when the clock spring 22 releases the elastic potential energy.

[0054] In addition, when the air motor 12 works, even if the limiting inclined block 23 is not aligned with the gap of the bearing disc 20, the gap can be gradually rotated to be engaged with the limiting inclined block 23 with the rotation of the bearing disc 20, thereby realizing the locking of the bearing disc 20.

[0055] As a preferred embodiment of the present application, the inside of the filter cover 17 is fixedly mounted with a supporting strip 29, wherein the supporting strip 29 is arranged to improve the structural strength of the filter cover 17.

[0056] The inner wall of the supporting strip 29 is rotatably mounted with a transmission pin 27, the bottom of the transmission pin 27 is fixedly connected with the outer wall of the scraper 28, and the upper end surface of the transmission pin 27 is fixedly connected with the bottom surface of the bearing disc 20, thereby driving the scraper 28 to rotate when the bearing disc 20 rotates.

[0057] The supporting strip 29 is of an elastic structure, and the upper end surface is fixedly mounted with a reinforcing ring 21, the upper end surface of the reinforcing ring 21 is provided with a groove, and the reinforcing ring 21 is arranged to further improve the structural strength of the filter cover 17.

[0058] The radial outer wall of the transmission pin 27 is fixedly installed with an elastic strip 26, the bottom surface of the elastic strip 26 is fixedly installed with a protrusion matched with the groove, when the transmission pin 27 rotates, the elastic strip 26 is driven to rotate, at this time, the protrusion reciprocates into and slides out of the groove, vibration is generated, and the filter cover 17 is shaken.

[0059] Since heat is generated in the polishing and welding processes, the air sucked by the absorption cover 6 contains heat, dust attached to the filter cover 17 is dried, dry dust has no damp adhesion, the adhesion is greatly reduced, vibration can easily break the adhesion of the dust to the surface of the filter cover 17, so that the dust quickly separates from the filter cover 17, and the dust is more easily completely removed than wet dust.

[0060] The bottom surface of the absorption cover 6 is fixedly installed with an arc-shaped plate 10, when dust is absorbed, the bottom surface of the arc-shaped plate 10 is attached to the surface of the workpiece after polishing, and the arc-shaped plate 10 scrapes the hardened dust, so as to facilitate the absorption cover 6 to absorb the dust.

[0061] The inner wall of the absorption cover 6 is rotatably installed with a mounting ring 40, the inner wall of the mounting ring 40 is fixedly installed with a guide vane 38, the mounting ring 40 is rotated to drive the guide vane 38 to rotate, so as to adjust the suction angle and prevent dust from gathering in the inner cavity of the absorption cover 6.

[0062] The inner wall of the connecting pipe 16 is rotatably installed with an axial flow impeller 37, the axial end center position of the axial flow impeller 37 is fixedly connected with the axial end center position of the mounting ring 40, when suction is performed, the axial flow impeller 37 is rotated by airflow control, and then the mounting ring 40 and the guide vane 38 are rotated.

[0063] The radial outer wall of the mounting ring 40 is fixedly installed with a connecting rope 39, the other end of the connecting rope 39 is fixedly installed with a hammer 36, wherein the absorption cover 6 is a cuboid structure, an inner cavity is arranged inside, and an opening is arranged on the bottom surface, when the mounting ring 40 rotates, the hammer 36 is impacted by centrifugal force to hit the side wall of the absorption cover 6, vibration is generated and transmitted to the arc-shaped plate 10, and then the efficiency of cleaning the hardened dust on the surface of the workpiece is improved.

[0064] The above front, back, left, right, up and down are based on the drawings in the specification Figure 1 as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0065] In the description of the application, it is to be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.

[0066] The basic principles, main features and advantages of the application are shown and described above. Those skilled in the art should understand that the application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the application. The scope of protection of the application is defined by the appended claims and their equivalents.

Claims

1. A welding device for aluminum alloy door and window frames equipped with an automatic flipping fixture, characterized in that: It includes a flipping mechanism, a welding mechanism, a polishing mechanism, a cleaning mechanism, a filtering mechanism, an energy storage mechanism, and a control mechanism; The welding mechanism includes a support frame and a welding machine mounted on the support frame; The flipping mechanism is used to flip the frame workpiece; The polishing mechanism includes a pneumatic motor and a grinding disc. The pneumatic motor is used to drive the grinding disc, and the air inlet of the pneumatic motor has a flow rate regulation function. The cleaning mechanism includes an adapter tube and an absorption hood that are connected to the air inlet of the pneumatic motor; The filtration mechanism includes a filter cover and a scraper that is rotatably disposed on the bottom surface of the filter cover. The filter cover is fixedly installed on the inner wall of the adapter cylinder. The energy storage mechanism includes a mainspring, a transmission disc, and an induction cylinder. The induction cylinder is fixedly installed inside the adapter cylinder. The transmission disc is rotated by the air pressure inside the induction cylinder. One end of the transmission disc is fixedly connected to the mainspring. The control mechanism includes a limiting bar and a bearing plate. The other end of the spring is fixedly connected to the bearing plate. The outer wall of the bearing plate has a notch for the limiting bar to engage. The sliding of the limiting bar is controlled by the air pressure inside the adapter cylinder. The bearing plate and the scraper have the same motion state.

2. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 1, characterized in that: A dual-axis sliding frame is fixedly installed at the upper end of the support frame. A platform is slidably arranged on the outer wall of the dual-axis sliding frame. A control cylinder is fixedly installed on the upper surface of the platform. An installation box is fixedly installed on the bottom surface of the platform. The pneumatic motor and the adapter cylinder are both installed on the inner wall of the installation box. The system has two control cylinders, one of which controls the lifting and lowering of the welding machine, and the other of which controls the lifting and lowering of the mounting box.

3. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 2, characterized in that: The outer wall of the mounting box is slidably fitted with a storage box that is slidably inserted into the adapter tube. A connecting pipe is fixedly installed on the bottom surface of the adapter tube, and the other end of the connecting pipe is connected to the inner cavity of the absorption cover. The inner wall of the storage box is fixedly installed with a fan-shaped plate. The fan-shaped plate is made of elastic material and is inclined. Multiple fan-shaped plates are evenly arranged in a ring. The sector-shaped plate is located between the connecting pipe and the adapter cylinder.

4. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 1, characterized in that: A sliding plug is slidably installed in the inner cavity of the induction cylinder, and the outer wall of the sliding plug is elastically connected to the inner wall of the induction cylinder. A transmission sleeve is mounted on the bottom surface of the sliding plug via a one-way bearing, and a ball bearing is fixedly mounted on the inner wall of the transmission sleeve. The inner wall of the induction cylinder is rotatably mounted with a drive shaft via a one-way bearing, and the outer wall of the drive shaft is provided with a spiral groove that slides with the ball bearing. The bottom surface of the drive shaft is fixedly connected to the upper end surface of the drive disc.

5. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 4, characterized in that: A connecting cylinder is fixedly installed on the outer wall of the adapter cylinder, and one end of the connecting cylinder is connected to the air inlet of the pneumatic motor through a conduit; The inner wall of the connecting cylinder is elastically fitted with a conical cover. One end of the conical cover is fixedly connected to the outer wall of the limiting strip. The limiting strip is made of elastic material and a limiting inclined block is fixedly installed at its upper end.

6. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 5, characterized in that: A support bar is fixedly installed inside the filter cover. A transmission pin is rotatably installed on the inner wall of the support bar. The bottom of the transmission pin is fixedly connected to the outer wall of the scraper, and the upper end face of the transmission pin is fixedly connected to the bottom surface of the bearing plate. The support bar is an elastic structure, and a reinforcing ring is fixedly installed on its upper end face. The upper end face of the reinforcing ring is provided with a groove. An elastic strip is fixedly installed on the radial outer wall of the transmission pin, and a protrusion adapted to the groove is fixedly installed on the bottom surface of the elastic strip.

7. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 3, characterized in that: An arc-shaped plate is fixedly installed on the bottom surface of the absorption shroud, and an installation ring is rotatably installed on the inner wall of the absorption shroud. A guide plate is fixedly installed on the inner wall of the installation ring. An axial flow impeller is rotatably mounted on the inner wall of the connecting pipe, and the center position of the axial end of the axial flow impeller is fixedly connected to the center position of the axial end of the mounting ring. A connecting rope is fixedly installed on the radial outer wall of the mounting ring, and a hammer is fixedly installed at the other end of the connecting rope.

8. The aluminum alloy door and window frame welding device with automatic flipping fixture according to claim 1, characterized in that: The flipping mechanism includes a lifting cylinder, a control box, and a fixing frame for fixing the workpiece; The lifting cylinder is fixedly installed on the outer wall of the support frame, and its movable end is fixedly connected to the outer wall of the control box. The control box has a built-in motor and is used to control the rotation of the fixed frame. The fixed frame is slidably installed on the side wall of the support frame.

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