Electric arc welding equipment for door and window manufacturing

Abstract

The invention provides electric arc welding equipment for door and window manufacturing, and relates to the technical field of welding equipment, the electric arc welding equipment comprises a rectangular holding frame, two sliding assemblies are symmetrically and slidably mounted at the bottom of the rectangular holding frame, and a motor is fixedly hoisted above the rectangular holding frame; a rotating shaft of the motor is fixedly sleeved with a driving wheel; the sliding assembly is formed by welding a U-shaped connecting frame and two symmetrically-arranged T-shaped sliding pieces together, a swing frame is rotationally installed between the two T-shaped sliding pieces, a six-edge guide shaft is welded to one T-shaped sliding piece, and the six-edge guide shaft is slidably sleeved with a sliding ring in a spring pushing mode; the swing frame is jointly composed of a swing shaft and two symmetrically-arranged L-shaped swing rods, and welding guns are fixed to the bottom ends of the L-shaped swing rods in a penetrating mode. Upper swing vacancy and lower swing reset operation of the four welding guns and reciprocating sliding welding machining operation of the welding guns can be driven and executed by the same motor and the same double-crank sliding block mechanism, and the manufacturing cost and energy consumption of the welding machining device can be reduced easily.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to an arc welding equipment for door and window manufacturing. Background Technology

[0002] Metal structural components of doors and windows (such as aluminum alloy frames, stainless steel connectors, drive mechanism mounting bases, etc.) are key carriers for the overall strength, sealing performance and service life of doors and windows, and they mainly rely on semi-automatic electric arc welding equipment for welding processing.

[0003] To avoid accidental collision damage to the welding torch, which is positioned close to the door and window frame, during the loading and unloading of door and window frames, existing welding processing equipment often designs the welding torch or its mounting mechanism to be able to swing or move in a neutral position. However, the sliding welding action and the neutral movement of the welding torch usually require separate drive units, and they cannot share a single drive unit. This is not conducive to reducing the cost and power consumption of the welding processing equipment. Summary of the Invention

[0004] In view of this, the present invention provides an arc welding equipment for door and window manufacturing to solve the problem that the sliding welding action and the idle action of the welding torch mostly need to be configured with separate drive units and cannot be driven by a single drive unit.

[0005] The technical solution proposed in this invention is as follows: an arc welding equipment for door and window manufacturing, specifically including a rectangular holding frame, two sliding components symmetrically slidably installed at the bottom of the rectangular holding frame, and a motor fixedly suspended above the rectangular holding frame; a drive wheel is fixedly mounted on the rotating shaft of the motor; the sliding components are welded together by a U-shaped connecting frame and two symmetrically arranged T-shaped sliding parts, a swing frame is rotatably installed between the two T-shaped sliding parts, a hexagonal guide shaft is welded on one of the T-shaped sliding parts, and a slip ring is slidably mounted on the hexagonal guide shaft in the form of a spring push; the swing frame is composed of a swing shaft and two symmetrically arranged L-shaped swing rods, a welding gun is fixedly fixed through the bottom part of the L-shaped swing rod, a spur gear is fixedly mounted on one end of the swing shaft, and a pull rod is rotatably connected between the slip ring and the corresponding L-shaped swing rod; two horizontal racks are symmetrically welded on the bottom side of the rectangular holding frame, and the spur gear contacts and meshes with the corresponding horizontal rack when sliding away from the motor; two parallel connecting rods are rotatably connected between the drive wheel and the two U-shaped connecting frames.

[0006] Furthermore, T-shaped grooves are provided on the bottom sides of the two long side rods of the rectangular retaining frame, and the top part of the T-shaped sliding member slides in conjunction with the T-shaped groove.

[0007] Furthermore, the first and last ends of the hexagonal guide shaft are respectively fixedly connected to a limiting ring and a retaining plate, and the slip ring is located between the limiting ring and the retaining plate; The spring that pushes the slip ring is mounted on the hexagonal guide shaft and is compressed and clamped between the slip ring and the stop plate, with the slip ring and the limiting ring in contact.

[0008] Furthermore, two spaced photoelectric switches are fixedly installed on the outer side of one end of a long side rod of the rectangular retaining frame; A trigger plate is welded to the outside of a short side rod of one of the U-shaped connecting frames. When the trigger plate slides laterally, it passes through the space below two photoelectric switches in sequence and blocks the triggering of the two photoelectric switches in sequence.

[0009] Furthermore, two U-shaped frames are symmetrically welded to the bottom of the two long side rods of the rectangular retaining frame. An electrical control box is fixedly installed on one of the U-shaped frames. A frequency converter is installed inside the electrical control box. Both photoelectric switches are connected to the frequency converter for communication. The two photoelectric switches are used to switch the direction of the motor and control the start and stop of the motor through the frequency converter. A U-shaped mounting frame is welded to the top center of the rectangular retaining frame, and the top of the motor is fixedly connected to the middle part of the U-shaped mounting frame.

[0010] Furthermore, two U-shaped horizontal frames are symmetrically welded on the two U-shaped frames, and two U-shaped positioning frames are symmetrically rotatably installed on the two U-shaped horizontal frames. A centering shaft is fixed to the center position of the vertical side plate of the U-shaped positioning frame. The centering shaft is rotatably fitted through the middle part of the U-shaped horizontal frame, and a conical gear ring is rotatably mounted on the tail end of the centering shaft.

[0011] Furthermore, two clamping plates are symmetrically slidably installed inside the U-shaped positioning frame. One long side of the clamping plate is slidably attached to the vertical side plate of the U-shaped positioning frame, and a threaded push shaft is fixedly connected to the center of the top of the clamping plate. Two threaded sleeves are symmetrically and rotatably installed in the middle of the upper and lower side plates of the U-shaped positioning frame. A bevel gear is fixedly fitted on one end of each threaded sleeve that is opposite to the other. The threaded drive shaft meshes with the threaded sleeve through the threaded sleeve in the form of threaded screwing. The bevel gear ring meshes with the two bevel gears for transmission.

[0012] Furthermore, a positioning ring is welded to the outer side of the middle part of the aforementioned U-shaped horizontal frame. The positioning ring is concentrically arranged with the centering shaft on the corresponding side. The centering shaft is extended and protruding. Two guide shafts are symmetrically fixed to the part of the centering shaft located in the positioning ring. A sliding sleeve is slidably installed on the part of the centering shaft protruding from the positioning ring. Two grips are symmetrically welded to the outer periphery of the positioning ring. Two handles are symmetrically welded to the head end of the centering shaft. The two guide shafts slide against the inner circumference of the positioning ring at their ends. Two sliding positioning components are symmetrically slidably installed on the two guide shafts. The sliding positioning components are integrally formed by a collar and two symmetrically arranged insert shafts. The collar slides with the guide shaft. A spring is compressed and fitted on the part of the guide shaft between the collar and the centering shaft. The collar abuts against the inner circumference of the positioning ring. The two insert shafts are inserted through and connected to the peripheral wall of the positioning ring.

[0013] Furthermore, the door and window frames to be welded are placed between two U-shaped positioning frames and clamped in place by clamps. The welding torch is aligned horizontally with the butt welds formed between the horizontal and vertical side bars on the door and window frames.

[0014] Furthermore, two L-shaped retaining rods are symmetrically welded to two vertical support rods on the same side of the two U-shaped frames. A rectangular box frame is fixedly installed between the two L-shaped retaining rods. The main unit is fixedly installed inside the rectangular box frame. Four wire feeding mechanisms are fixedly arranged at the top of the rectangular box frame. Wire feeding hoses are connected between the wire feeding mechanisms and the welding gun. Two tubing sleeves are symmetrically fixed to the U-shaped connecting frame, and the wire feeding hose is threaded through the corresponding tubing sleeves.

[0015] The present invention provides an arc welding equipment for door and window manufacturing, which has the following beneficial effects: 1. Through the meshing transmission of spur gears and horizontal racks, the two swing frames can be meshed and driven to rotate symmetrically and synchronously upwards, switching the L-shaped swing arm and welding torch to a horizontal support state, and disengaging them from the space near the two longitudinal side bars of the door and window frame. This avoids the welding torch being unable to adjust its position, and keeps it in a state close to the two longitudinal side bars of the door and window frame for a long time during the disassembly and assembly of the door and window frame. This helps to protect the welding torch from collisions or even damage caused by the unstable door and window frame when it is hoisted, disassembled, or transported.

[0016] Second, the upper swing and lower swing reset operations of the four welding torches, as well as their reciprocating sliding welding operations, can share the same motor and the same set of double crank slider mechanism for drive execution. This eliminates the need to configure separate drive units and transmission mechanisms similar to double crank slider mechanisms for the above two operations, which helps to reduce the cost and energy consumption of the welding processing equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1This is a schematic diagram of the entire invention from a frontal perspective; Figure 2 A rear-view schematic diagram of the entire invention is shown; Figure 3 A bottom-view schematic diagram of the entire invention is shown; Figure 4 The present invention is shown Figure 3 Enlarged structural diagram of section A; Figure 5 A diagram showing the relative positional relationship between the welding torch and the door / window frame in this invention is provided. Figure 6 A diagram showing the transmission relationship between the bevel gear and the bevel gear ring in this invention is provided. Figure 7 A schematic diagram showing the disassembled state of the conical gear ring and clamping plate in this invention is shown; Figure 8 A schematic diagram of the swing frame and sliding assembly in this invention is shown; Figure 9 An electrical control flowchart of the present invention is shown.

[0020] List of reference numerals in the attached diagram: 1. U-shaped frame; 101. U-shaped horizontal frame; 1011. Positioning ring; 102. L-shaped retaining rod; 2. Rectangular retaining frame; 201. U-shaped mounting frame; 202. Horizontal rack; 203. Sliding assembly; 2031. U-shaped connecting frame; 2032. T-shaped slider; 2033. Tube sleeve; 2034. Hexagonal guide shaft; 2035. Baffle plate; 2036. Slip ring; 2037. Limiting ring; 2038. Trigger plate; 204. T-shaped slide groove; 3. Motor; 301. Drive wheel; 302. Connecting rod; 4. Welding torch; 5. Conical gear ring; 6. Swing frame; 601. Swing shaft; 6011. Spur gear; 602. L-shaped swing arm; 6021. Pull rod; 7. U-shaped positioning frame; 701. Centering shaft; 7011. Guide shaft; 7012. Sliding sleeve; 7013. Inclined tie rod; 7014. Handle bar; 7015. Handle bar; 702. Clamping plate; 7021. Threaded push shaft; 703. Threaded sleeve; 704. Bevel gear; 8. Sliding positioning component; 801. Collar; 802. Insert shaft; 9. Photoelectric switch; 10. Electrical control box; 11. Door and window frame; 12. Rectangular box frame; 13. Main unit; 14. Wire feeding mechanism; 1401. Wire feeding hose. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] The following is an embodiment of the present invention, please refer to it. Figures 1 to 8 : This embodiment proposes an arc welding device for door and window manufacturing, including a rectangular retaining frame 2. Two sliding components 203 are symmetrically slidably installed at the bottom of the rectangular retaining frame 2. A motor 3 is fixedly suspended above the rectangular retaining frame 2. A drive wheel 301 is fixedly mounted on the rotating shaft of the motor 3. The sliding component 203 is composed of a U-shaped connecting frame 2031 and two symmetrically arranged T-shaped sliding parts 2032 welded to the tail ends of two short side rods of the U-shaped connecting frame 2031. A swing frame 6 is rotatably installed between the two T-shaped sliding parts 2032. A hexagonal guide shaft 2034 is welded to the bottom part of one of the T-shaped sliding parts 2032. A slip ring 2036 is slidably mounted on the hexagonal guide shaft 2034 in the form of a spring push. The swing frame 6 is composed of a swing shaft 601 and two symmetrically arranged L-shaped swing rods 602 welded to the swing shaft 601. The bottom part of the L-shaped swing rod 602 is fixed with a welding gun 4. One end of the swing shaft 601 is fixedly fitted with a spur gear 6011. The slip ring 2036 is rotatably connected to the top part of the corresponding L-shaped swing rod 602 with a pull rod 6021. The bottom of the two ends of the long side rod of the rectangular retaining frame 2 is symmetrically welded with two horizontal racks 202. When the spur gear 6011 slides away from the motor 3, it contacts and meshes with the horizontal rack 202 on the corresponding side. The rim of the drive wheel 301 is rotatably connected to the middle part of the two U-shaped connecting frames 2031 with two parallel connecting rods 302.

[0023] Preferably, the bottom sides of the two long side rods of the rectangular retaining frame 2 are provided with T-shaped grooves 204, and the top part of the T-shaped slider 2032 slides in cooperation with the T-shaped grooves 204.

[0024] Preferably, the first and last ends of the hexagonal guide shaft 2034 are respectively fixed to a limiting ring 2037 and a baffle 2035, and a slip ring 2036 is located between the limiting ring 2037 and the baffle 2035; a spring that pushes the slip ring 2036 is fitted on the hexagonal guide shaft 2034 and is compressed and clamped between the slip ring 2036 and the baffle 2035, and the slip ring 2036 abuts against the limiting ring 2037.

[0025] Preferably, two spaced photoelectric switches 9 are fixedly installed on the outer side of one end of a long side rod of a rectangular retaining frame 2; a trigger plate 2038 is welded to the outer side of a short side rod of a U-shaped connecting frame 2031. When the trigger plate 2038 slides laterally, it passes through the space below the two photoelectric switches 9 in sequence and blocks the triggering of the two photoelectric switches 9 in sequence.

[0026] Preferably, two U-shaped frames 1 are symmetrically welded to the bottom of the two long side rods of the rectangular retaining frame 2. An electrical control box 10 is fixedly installed on one of the U-shaped frames 1. An inverter is installed inside the electrical control box 10. Both photoelectric switches 9 are connected to the inverter. The two photoelectric switches 9 are used to switch the direction of the motor 3 and control the start and stop of the motor 3 through the inverter. A U-shaped mounting frame 201 is welded to the middle position of the top of the rectangular retaining frame 2. The top of the motor 3 is fixedly connected to the middle part of the U-shaped mounting frame 201.

[0027] Preferably, two U-shaped horizontal frames 101 are symmetrically welded on the two U-shaped frames 1, and two U-shaped positioning frames 7 are symmetrically and rotatably installed on the two U-shaped horizontal frames 101. A centering shaft 701 is fixedly connected to the center position of the vertical side plate of the U-shaped positioning frame 7. The centering shaft 701 and the middle part of the U-shaped horizontal frame 101 are rotatably engaged, and a conical gear ring 5 is rotatably installed on the tail end of the centering shaft 701.

[0028] Preferably, two clamping plates 702 are symmetrically slidably installed inside the U-shaped positioning frame 7. One long side of the clamping plate 702 is slidably attached to the vertical side plate of the U-shaped positioning frame 7. A threaded push shaft 7021 is fixedly connected to the center of the top of the clamping plate 702. Two threaded sleeves 703 are symmetrically and rotatably installed through the middle of the upper and lower side plates of the U-shaped positioning frame 7. A bevel gear 704 is fixedly fitted on the opposite ends of the two threaded sleeves 703. The threaded push shaft 7021 is threaded and meshes with the threaded sleeve 703. The bevel gear ring 5 meshes with the two bevel gears 704 for transmission.

[0029] Preferably, a positioning ring 1011 is welded to the outer side of the middle portion of a U-shaped horizontal frame 101. The positioning ring 1011 is concentrically arranged with a centering shaft 701 on the corresponding side. The centering shaft 701 is extended and protruding. Two guide shafts 7011 are symmetrically fixed to the portion of the centering shaft 701 located in the positioning ring 1011. A sliding sleeve 7012 is slidably installed on the portion of the centering shaft 701 protruding from the positioning ring 1011. Two grips 7014 are symmetrically welded to the outer periphery of the positioning ring 1011. Two handles 701 are symmetrically welded to the head end of the centering shaft 701. 5; The first ends of the two guide shafts 7011 slide against the inner circumference of the positioning ring 1011. Two sliding positioning parts 8 are symmetrically slidably installed on the two guide shafts 7011. The sliding positioning parts 8 are integrally formed by the collar 801 and the two symmetrically arranged insert shafts 802. The collar 801 slides with the guide shaft 7011. The part of the guide shaft 7011 located between the collar 801 and the centering shaft 701 is compressed and fitted with a spring. The collar 801 abuts against the inner circumference of the positioning ring 1011. The two insert shafts 802 are inserted into the peripheral wall of the positioning ring 1011.

[0030] Preferably, the door and window frame 11 to be welded is placed between two U-shaped positioning frames 7 and clamped and positioned by clamping plates 702, and the welding gun 4 is aligned with the butt weld formed between the horizontal side bar and the vertical side bar on the door and window frame 11 in the horizontal direction.

[0031] Preferably, two L-shaped retaining rods 102 are symmetrically welded to two vertical support rods on the same side of the two U-shaped frames 1. A rectangular box frame 12 is fixedly installed between the two L-shaped retaining rods 102. The main unit 13 is fixedly installed inside the rectangular box frame 12. Four wire feeding mechanisms 14 are fixedly arranged at the top of the rectangular box frame 12. The wire feeding mechanism 14 is connected to the welding torch 4 by a wire feeding hose 1401. Two tube sleeves 2033 are symmetrically fixed to the U-shaped connecting frame 2031. The wire feeding hose 1401 passes through the tube sleeves 2033 at the corresponding positions. The electrical control box 10 is equipped with a control unit for controlling the start and stop of the main unit 13 and the wire feeding mechanism 14. The photoelectric switch 9 is communicatively connected to the control unit.

[0032] The following provides a detailed explanation of the specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in implementing this technical solution: In the initial state and during use, when disassembling and assembling the door and window frame 11, the two swing brackets 6 need to be driven away from each other so that the spur gear 6011 and the horizontal rack 202 can engage. Under this condition, through the meshing transmission of the spur gear 6011 and the horizontal rack 202, the two swing brackets 6 can be meshed and driven to rotate symmetrically and synchronously upward, switching the L-shaped swing arm 602 and the welding torch 4 to a horizontal support state, and disengaging from the space near the two longitudinal side bars of the door and window frame 11. This avoids the welding torch 4 being unable to adjust its position and keeps it in a state close to the two longitudinal side bars of the door and window frame 11 for a long time during the disassembly and assembly of the door and window frame 11. This makes it easy for the welding torch 4 to be damaged or even destroyed by the unstable door and window frame 11 when it is hoisted, disassembled, or transported. This helps to provide anti-collision protection for the welding torch 4.

[0033] In operation, the spur gear 6011 remains disengaged from the horizontal rack 202, and the two L-shaped rocker arms 602 and the four welding torches 4 are positioned and held in an upright supporting state. The two connecting rods 302, the two sliding components 203, and the drive wheel 301 are connected to form a double-crank slider mechanism. Through this mechanism, the motor 3 can rotate back and forth to drive the two sliding components 203 and the four vertically supported welding torches 4 to slide back and forth longitudinally along the two T-shaped sliding grooves 204 to weld the four longitudinal welds formed by the connection between the two horizontal side bars and the two vertical side bars on the door and window frame 11. In addition, through this double-crank slider mechanism, the motor 3 can also rotate back and forth to drive the two sliding components 203 and the two rocker arms 602 to slide back and forth along the two T-shaped sliding grooves 204 to weld the four longitudinal welds formed by the connection between the two horizontal side bars and the two vertical side bars on the door and window frame 11. The frame 6 slides back and forth longitudinally, controlling the two spur gears 6011 to engage with the two transverse racks 202 for power coupling and disengagement for power decoupling. This enables the two swing frames 6 and the four welding torches 4 to perform upper swing positioning and lower swing reset. Thus, the upper swing positioning and lower swing reset operations of the four welding torches 4, as well as their reciprocating sliding welding operations, can be driven by the same motor 3 and the same double crank slider mechanism. This eliminates the need to configure separate drive units and transmission mechanisms similar to double crank slider mechanisms for the above two operations, which helps to reduce the cost and energy consumption of the welding processing device. Note that how to control the motor 3 so that the above two operations are independent and do not interfere with each other when driven by the shared motor 3 will be explained in detail in the following text.

[0034] The working principle of this embodiment: Before welding, the door and window frame 11 is pre-shaped by spot welding (that is, the two horizontal and vertical side bars of the door and window frame 11 are fixed together by spot welding to form a rectangular door and window frame 11). During welding, the door and window frame 11 to be welded is first hoisted or lifted and placed between the U-shaped positioning frames 7, and clamped and positioned by the clamping plates 702. Since the two swing frames 6 are driven away from each other in the initial state, the two spur gears 6011 and the two horizontal racks 202 are in contact and mesh, and the two swing frames 6 and the four welding guns 4 are kept in the upper horizontal empty position. After completing the above operations, the two swing frames 6 and the four welding guns 4 need to be lowered and reset to the vertical support welding position. Note that the four The operation of the welding torch 4 in the neutral position is implemented by jogging the motor 3 to rotate forward and backward. When resetting the welding torch 4, the motor 3 is started first. After the motor 3 drives, the drive wheel 301 rotates forward. When the drive wheel 301 is driven to rotate forward, it drives the two sliding components 203, the two swing frames 6, and the two spur gears 6011 to slide closer to each other through the double crank slider mechanism. When the two spur gears 6011 are driven to slide closer to each other, they are driven to rotate synchronously in the opposite direction by the two horizontal racks 202. When the two spur gears 6011 are driven to rotate synchronously in the opposite direction, they drive the two swing frames 6 and the four welding torches 4 to swing down symmetrically to reset to the vertical welding position. The slip ring 2036, the pull rod 6021, and the L-shaped swing rod 602 are connected together to form a single crank slider mechanism. Through this mechanism, when the spur gear 6011 is decoupled from the horizontal rack 202, the slip ring 2036, pushed by the spring on the hexagonal guide shaft 2034, can slide against the limiting ring 2037, keeping the swing frame 6 and the four welding torches 4 in a vertical welding position, ensuring that the four welding torches 4 can stably reciprocate and slide for welding in subsequent processes. During the above process, when the two sliding components 203 are driven away from each other, after the spur gear 6011 is separated from the horizontal rack 202, the trigger plate 2038 slides under the drive of the sliding components 203 to the area below the photoelectric switch 9 away from the motor 3, blocking the triggering of the photoelectric switch 9. After the photoelectric switch 9 is triggered, it transmits the trigger signal to the control unit, and the control unit receives... Upon receiving the trigger signal, the main unit 13 and wire feeding mechanism 14 are started. Subsequently, as the drive wheel 301 continues to rotate forward, the four welding torches 4, positioned in an upright welding state, are continuously driven to slide closer to each other. During this process, when the four welding torches 4 approach the four weld seams on the door and window frame 11, the welding wire fed from them contacts the weld seam, ignites an arc, and follows the continuous sliding of the welding torch 4 to weld the seam. Afterward, when the welding torch 4 slides away from the weld seam and the welding is completed, the trigger plate 2038 slides to below the photoelectric switch 9 near the motor 3, blocking the triggering of the photoelectric switch 9. When the photoelectric switch 9 is triggered, it transmits a trigger signal simultaneously to the frequency converter and the control unit. Upon receiving the trigger signal, the frequency converter switches the motor 3 to reverse operation.Upon receiving the trigger signal, the control unit stops the main unit 13 and the wire feeding mechanism 14. After the motor 3 is switched and reversed, it drives the two sliding components 203 and the four welding torches 4 to slide away from each other. During this process, when the trigger plate 2038 slides with the sliding component 203 to below the photoelectric switch 9 away from the motor 3, it triggers the photoelectric switch 9. After the photoelectric switch 9 is triggered, it transmits the trigger signal to the frequency converter. After receiving the trigger signal, the frequency converter stops the motor 3, causing the four welding torches 4 to stop and remain in a temporarily idle state near the two longitudinal side bars of the door and window frame 11 (see reference). Figure 1 Then, the door and window frame 11 is flipped and welded using two centering shafts 701 and U-shaped positioning frame 7. When the bottom surface of the door and window frame 11 is flipped upward, the motor 3 is restarted and the main unit 13 and wire feeding mechanism 14 are activated in conjunction. Then, the motor 3 rotates forward, and the double crank slider mechanism, swing frame 6 and welding torch 4 repeat the above process to weld the four weld seams facing upward after flipping. After the welding of the four weld seams is completed, the motor 3, main unit 13 and wire feeding mechanism 14 stop, and the four welding torches 4 stop again and remain in a temporarily idle state near the two longitudinal side bars of the door and window frame 11 (refer to...). Figure 1 Next, the completed welded door and window frame 11 is removed and unloaded. Before unloading, the motor 3 is reversed by jogging to drive the two sliding components 203 and the swing frame 6 to slide away from each other, so that the two spur gears 6011 and the two horizontal racks 202 are engaged. The two swing frames 6 and the four welding guns 4 are driven to switch to the upper horizontal empty position to avoid collision damage to the welding guns 4 during the disassembly and subsequent reinstallation of the new door and window frame 11. Finally, the new unwelded door and window frame 11 is replaced and fixed between the two U-shaped positioning frames 7 and all the above processes are repeated for welding. By repeating this process, the continuous welding of the door and window frame 11 can be achieved.

[0035] When the four insert shafts 802 on the two sliding positioning parts 8 are inserted into the peripheral wall of the positioning ring 1011, the door and window frame 11 can be positioned in a horizontal state to receive stable and effective welding. The two sliding positioning parts 8 are kept in the inserted positioning state by the spring push on the two guide shafts 7011. The sliding sleeve 7012, the two inclined tie rods 7013 and the two sliding positioning parts 8 are connected to form a double crank-type crank-slider mechanism. By sliding the sliding sleeve 7012 towards or away from the positioning ring 1011, the two sliding positioning parts 8 can be driven to slide towards or away from each other. The movement controls the insertion shaft 802 to engage or disengage with the positioning ring 1011, locking and unlocking the U-shaped positioning frame 7 and the door / window frame 11. Before flipping the door / window frame 11, the sliding positioning component 8 must be operated to unlock the U-shaped positioning frame 7 and the door / window frame 11. After the flipping adjustment is completed, the sliding positioning component 8 must be operated to lock the U-shaped positioning frame 7 and the door / window frame 11 again. The hand uses the grip rod 7014 to slide the sliding sleeve 7012. The flipping operation of the door / window frame 11 is performed by holding the two handles 7015.

[0036] Through two bevel gears 704, the forward and reverse rotating bevel gear rings 5 ​​can mesh to drive the two threaded sleeves 703 to rotate back and forth, and push the two threaded push shafts 7021 and the clamping plates 702 to slide synchronously in opposite directions or in opposite directions, so as to complete the tightening and loosening of the two clamping plates 702 on the door and window frame 11 in one convenient way.

[0037] It is worth noting that the composition of the control unit, the selection of the inverter and photoelectric switch 9, the connection and wiring method between the control unit and the host 13 and the wire feeding mechanism 14, the connection and wiring method between the inverter and the motor 3, the connection and wiring method between the photoelectric switch 9 and the control unit and the motor 3, and the control principle of the inverter for the motor 3 are all existing technologies for technicians engaged in the electrical automation transformation, design and maintenance testing of equipment in this field, and therefore will not be elaborated here.

[0038] It is worth noting that this welding processing device requires an external carbon dioxide protective gas source. The carbon dioxide protective gas source is connected to the air inlet of the wire feeding mechanism 14 through a high-pressure gas pipe. The shape and structure of the main unit 13 and the wire feeding mechanism 14, as well as the connection and wiring method between them, are existing technologies for those skilled in the art who are engaged in equipment design and maintenance, so they will not be described in detail here.

[0039] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0040] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0041] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An arc welding equipment for manufacturing doors and windows, comprising a rectangular retaining frame (2), wherein two sliding components (203) are symmetrically slidably installed at the bottom of the rectangular retaining frame (2), and a motor (3) is fixedly suspended above the rectangular retaining frame (2); Its features are, A drive wheel (301) is fixedly mounted on the shaft of the motor (3); the sliding assembly (203) is composed of a U-shaped connecting frame (2031) and two symmetrically arranged T-shaped sliding parts (2032) welded together, and a swing frame (6) is rotatably mounted between the two T-shaped sliding parts (2032). A hexagonal guide shaft (2034) is welded on one of the T-shaped sliding parts (2032), and a slip ring (2036) is slidably mounted on the hexagonal guide shaft (2034) in the form of a spring push; the swing frame (6) is composed of a swing shaft (601) and two symmetrically arranged L-shaped swing rods (602), L The bottom part of the L-shaped swing arm (602) is fixed with a welding gun (4), and one end of the swing shaft (601) is fixed with a spur gear (6011). The slip ring (2036) is rotatably connected to the L-shaped swing arm (602) on the corresponding side with a pull rod (6021). The bottom side of the rectangular retaining frame (2) is symmetrically welded with two horizontal racks (202). When the spur gear (6011) slides away from the motor (3), it contacts and meshes with the horizontal rack (202) on the corresponding side. The drive wheel (301) is rotatably connected to the two U-shaped connecting frames (2031) with two parallel connecting rods (302).

2. The arc welding equipment for door and window manufacturing according to claim 1, characterized in that, The bottom sides of the two long side rods of the rectangular retaining frame (2) are provided with T-shaped grooves (204), and the top part of the T-shaped sliding member (2032) slides in cooperation with the T-shaped groove (204).

3. The arc welding equipment for door and window manufacturing according to claim 1, characterized in that, The hexagonal guide shaft (2034) has a limiting ring (2037) and a baffle (2035) fixedly connected to its head and tail ends, respectively, and a slip ring (2036) is located between the limiting ring (2037) and the baffle (2035); The spring that pushes the slip ring (2036) is mounted on the hexagonal guide shaft (2034) and is compressed and clamped between the slip ring (2036) and the baffle (2035). The slip ring (2036) and the limiting ring (2037) are in contact.

4. The arc welding equipment for door and window manufacturing according to claim 1, characterized in that, Two photoelectric switches (9) are fixedly installed at intervals on the outer side of one end of a long side rod of the rectangular retaining frame (2); A trigger plate (2038) is welded to the outside of a short side rod of one of the U-shaped connecting frames (2031). When the trigger plate (2038) slides laterally, it passes through the space below two photoelectric switches (9) in sequence and blocks the triggering of the two photoelectric switches (9) in sequence.

5. The arc welding equipment for door and window manufacturing according to claim 4, characterized in that, The rectangular retaining frame (2) has two U-shaped frames (1) symmetrically welded to the bottom of its two long side rods. An electrical control box (10) is fixedly installed on one of the U-shaped frames (1). The electrical control box (10) contains a frequency converter. Both photoelectric switches (9) are connected to the frequency converter. The two photoelectric switches (9) are used to switch the direction of the motor (3) and control the start and stop of the motor (3) through the frequency converter. A U-shaped mounting frame (201) is welded to the middle of the top of the rectangular retaining frame (2), and the top of the motor (3) is fixedly connected to the middle part of the U-shaped mounting frame (201).

6. The arc welding equipment for door and window manufacturing according to claim 5, characterized in that, Two U-shaped horizontal frames (101) are symmetrically welded on the two U-shaped frames (1), and two U-shaped positioning frames (7) are symmetrically rotated on the two U-shaped horizontal frames (101). A centering shaft (701) is fixed to the center position of the vertical side plate of the U-shaped positioning frame (7). The centering shaft (701) and the middle part of the U-shaped horizontal frame (101) are rotated together, and the tail end of the centering shaft (701) is rotatably mounted with a conical gear ring (5).

7. The arc welding equipment for door and window manufacturing according to claim 6, characterized in that, The U-shaped positioning frame (7) has two clamping plates (702) symmetrically slidably installed inside. One long side of the clamping plate (702) is slidably attached to the vertical side plate of the U-shaped positioning frame (7). A threaded push shaft (7021) is fixedly connected to the center of the top of the clamping plate (702). Two threaded sleeves (703) are symmetrically and rotatably installed in the middle of the upper and lower side plates of the U-shaped positioning frame (7). A bevel gear (704) is fixedly installed on one end of each threaded sleeve (703) facing away from each other. The threaded push shaft (7021) meshes with the threaded sleeve (703) through the threaded screw in the form of threaded screwing. The bevel gear ring (5) meshes with the two bevel gears (704) for transmission.

8. The arc welding equipment for door and window manufacturing according to claim 6, characterized in that, A positioning ring (1011) is welded to the outer side of the middle part of the aforementioned U-shaped horizontal frame (101). The positioning ring (1011) and the centering shaft (701) on the corresponding side are concentrically arranged. The centering shaft (701) is extended and protruding. Two guide shafts (7011) are symmetrically fixed to the part of the centering shaft (701) located in the positioning ring (1011). A sliding sleeve (7012) is slidably installed on the part of the centering shaft (701) that protrudes from the positioning ring (1011). Two grips (7014) are symmetrically welded to the outer periphery of the positioning ring (1011). Two handles (7015) are symmetrically welded to the head end of the centering shaft (701). The ends of the two guide shafts (7011) slide against the inner circumference of the positioning ring (1011). Two sliding positioning parts (8) are symmetrically slidably installed on the two guide shafts (7011). The sliding positioning parts (8) are integrally formed by the collar (801) and the two symmetrically arranged insert shafts (802). The collar (801) slides with the guide shaft (7011). The part of the guide shaft (7011) located between the collar (801) and the centering shaft (701) is compressed and fitted with a spring. The collar (801) abuts against the inner circumference of the positioning ring (1011). The two insert shafts (802) are inserted into the peripheral wall of the positioning ring (1011).

9. The arc welding equipment for door and window manufacturing according to claim 7, characterized in that, The door and window frame (11) to be welded is placed between two U-shaped positioning frames (7) and clamped and positioned by clamping plates (702). The welding gun (4) is aligned with the butt weld formed between the horizontal and vertical side bars on the door and window frame (11) in the horizontal direction.

10. The arc welding equipment for door and window manufacturing according to claim 6, characterized in that, Two L-shaped retaining rods (102) are symmetrically welded to two vertical support rods on the same side of the two U-shaped frames (1). A rectangular box frame (12) is fixedly installed between the two L-shaped retaining rods (102). The main unit (13) is fixedly installed inside the rectangular box frame (12). Four wire feeding mechanisms (14) are fixedly arranged at the top of the rectangular box frame (12). The wire feeding mechanism (14) is connected to the welding gun (4) by a wire feeding hose (1401). Two sleeves (2033) are symmetrically fixed on the U-shaped connecting frame (2031), and the wire feeding hose (1401) passes through the corresponding sleeves (2033).

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