An arc welding apparatus for manufacturing doors and windows

Abstract

The application provides an arc welding equipment for door and window manufacturing and relates to the technical field of welding equipment, which comprises a rectangular holding frame, two sliding assemblies symmetrically and slidingly installed at the bottom of the rectangular holding frame, and a motor fixedly hung above the rectangular holding frame; a driving wheel is fixedly sleeved on the rotating shaft of the motor; the sliding assembly is composed of a U-shaped connecting frame and two symmetrically arranged T-shaped sliding pieces, a swing frame is rotatably installed between the two T-shaped sliding pieces, a six-rib guide shaft is welded on one T-shaped sliding piece, and a sliding ring is slidingly sleeved on the six-rib guide shaft in the form of spring pushing; the swing frame is composed of a swing shaft and two symmetrically arranged L-shaped swing rods, and the bottom end of the L-shaped swing rod is fixedly penetrated by a welding gun. The upper swing space and the lower swing reset operation of the four welding guns and the reciprocating sliding welding operation can be driven and executed by the same motor and the same set of double-crank sliding block mechanism, so that the cost and energy consumption of the welding processing device can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to an arc welding equipment for manufacturing doors and windows. BACKGROUND

[0002] The metal structural parts (such as aluminum alloy frames, stainless steel connecting parts, drive mechanism mounting seats, etc.) of doors and windows, as the key carriers of the overall strength, sealing performance and service life of doors and windows, mainly rely on semi-automatic arc welding equipment for welding processing.

[0003] In order to avoid accidental collision damage to the welding gun arranged close to the door and window frame during the loading and unloading of the door and window frame, the existing welding processing device directly designs the welding gun or the mounting mechanism of the welding gun into a form capable of swinging or emptying in other motion modes. However, the sliding welding action and emptying action of the welding gun mostly need to be respectively configured with driving units, which cannot share a set of driving units for driving, and is not conducive to reducing the cost and power consumption of the welding processing device. SUMMARY

[0004] Therefore, the present application provides an arc welding equipment for manufacturing doors and windows to solve the problem that the sliding welding action and emptying action of the welding gun mostly need to be respectively configured with driving units, which cannot share a set of driving units for driving.

[0005] The technical scheme provided by the present application is as follows: an arc welding equipment for manufacturing doors and windows, specifically comprising a rectangular holding frame, two sliding assemblies are symmetrically and slidingly installed at the bottom of the rectangular holding frame, and a motor is fixedly hung above the rectangular holding frame; a driving wheel is fixedly sleeved on the rotating shaft of the motor; the sliding assembly is composed of a U-shaped connecting frame and two symmetrically arranged T-shaped sliding pieces, a swing frame is rotatably installed between the two T-shaped sliding pieces, a six-rib guide shaft is welded on one T-shaped sliding piece, and a sliding ring is slidingly sleeved on the six-rib guide shaft in the form of spring pushing; the swing frame is composed of a swing shaft and two symmetrically arranged L-shaped swing rods, a welding gun is fixedly penetrated and arranged at the bottom end of the L-shaped swing rod, a spur gear is fixedly sleeved on one end of the swing shaft, and a pull rod is rotatably connected between the sliding ring and the corresponding L-shaped swing rod; two transversely arranged racks are symmetrically welded at the bottom side of the rectangular holding frame, and the spur gear away from the motor is in contact and engagement with the corresponding transversely arranged rack; two parallel arranged connecting rods are rotatably connected between the driving wheel and the two U-shaped connecting frames.

[0006] Further, T-shaped sliding grooves are formed at the bottom sides of the two long side rods of the rectangular holding frame, and the top end of the T-shaped sliding piece is slidingly matched with the T-shaped sliding groove.

[0007] Further, a limiting ring and a baffle disc are respectively fixedly connected to the head end and the tail end of the six-rib guide shaft, and the sliding ring is located between the limiting ring and the baffle disc.

[0008] The pushing spring of the sliding ring is sleeved on the six-rib guide shaft and is compressed and clamped between the sliding ring and the baffle plate, and the sliding ring abuts against the limiting ring.

[0009] Further, two spaced photoelectric switches are fixedly installed on one end of one long side rod of the rectangular retaining frame.

[0010] One short side rod of the U-shaped connecting frame is welded with a trigger plate, and when the trigger plate slides in the transverse direction, it sequentially passes through the space below the two photoelectric switches and sequentially blocks the triggering of the two photoelectric switches.

[0011] Further, two U-shaped racks are symmetrically welded at the bottom of the two long side rods of the rectangular retaining frame, and an electric control box is fixedly installed on one U-shaped rack, and a frequency converter is arranged in the electric control box, and the two photoelectric switches are in communication connection with the frequency converter, and the two photoelectric switches are used to switch the direction of the motor through the frequency converter and control the start and stop of the motor.

[0012] A U-shaped mounting frame is welded at the top end of the rectangular retaining frame, and the top end of the motor is fixedly connected with the middle part of the U-shaped mounting frame.

[0013] Further, two U-shaped horizontal racks are symmetrically welded on the two U-shaped racks, and two U-shaped positioning frames are symmetrically rotatably installed on the two U-shaped horizontal racks, and a centering shaft is fixedly connected to the center position of the vertical side plate of the U-shaped positioning frame.

[0014] The centering shaft penetrates the middle part of the U-shaped horizontal rack in a rotatable manner, and a conical gear ring is rotatably installed at the tail end of the centering shaft.

[0015] Further, two clamps are symmetrically slidably installed inside the U-shaped positioning frame, one long side of the clamp is slidably attached to the vertical side plate of the U-shaped positioning frame, and a threaded advancing shaft is fixedly connected to the center position of the top end of the clamp.

[0016] Two threaded sleeves are symmetrically rotatably installed at the middle positions of the upper and lower side plates of the U-shaped positioning frame, one end of each threaded sleeve is fixedly sleeved with a conical gear opposite to each other, the threaded advancing shaft is threadedly engaged with the threaded sleeve, and the conical gear ring is engaged with the two conical gears for transmission.

[0017] Further, a positioning ring is welded on the outside of the middle part of one U-shaped horizontal rack, the positioning ring is concentrically arranged with the corresponding centering shaft, the centering shaft is protruding and lengthened, two guide shafts are symmetrically fixedly connected 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 handle rods are symmetrically welded on the outer periphery of the positioning ring, and two handle rods are symmetrically welded on the first end of the centering shaft.

[0018] The first end of the two guide shafts is in sliding fit with the inner periphery of the positioning ring, two sliding positioning members are symmetrically installed on the two guide shafts, the sliding positioning member is integrally formed by a shaft ring and two symmetrically arranged insertion shafts, the shaft ring is in sliding fit with the guide shaft, the portion of the guide shaft between the shaft ring and the centering shaft is provided with a spring, the shaft ring abuts against the inner periphery of the positioning ring, and the two insertion shafts are inserted into the peripheral wall of the positioning ring.

[0019] Further, the door and window frame to be welded is arranged between the two U-shaped positioning frames, and is clamped and positioned by the clamping plate. The welding gun is aligned with the butt joint weld formed between the transversely arranged side rod and the longitudinally arranged side rod of the door and window frame in the transverse direction.

[0020] Further, two L-shaped retaining rods are symmetrically welded on the same side of the two vertical supporting rods of the two U-shaped racks, a rectangular box frame is fixedly installed between the two L-shaped retaining rods, a main machine is fixedly installed in the rectangular box frame, four wire feeding mechanisms are fixedly arranged at the top end of the rectangular box frame, and a wire feeding hose is connected between the wire feeding mechanism and the welding gun.

[0021] The U-shaped connecting frame is symmetrically provided with two pipe sleeves, and the wire feeding hose is threaded through the pipe sleeves at the corresponding positions.

[0022] The arc welding equipment for manufacturing doors and windows has the following beneficial effects:

[0023] I. Through the meshing transmission of the straight gear and the transversely arranged rack, the two swing frames can be symmetrically and synchronously driven to turn upward, the L-shaped swing rod and the welding gun are switched to the horizontal supporting state, and the welding gun is separated from the space close to the two longitudinally arranged side rods of the door and window frame, so that the welding gun cannot be adjusted to the empty position. The welding gun is continuously kept close to the two longitudinally arranged side rods of the door and window frame during the disassembly and assembly of the door and window frame, and is easy to be collided and damaged by the unstable door and window frame during the lifting and disassembly or the carrying and disassembly. The welding gun is helpful for collision protection.

[0024] II. The upward swing empty position and the downward swing reset operation of the four welding guns and the reciprocating sliding welding operation can be driven and executed by the same motor and the same set of double-crank slider mechanism. This can save the need to separately configure a driving unit and a transmission mechanism similar to the double-crank slider mechanism for the above two operations, and is helpful for reducing the cost and energy consumption of the welding processing device. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0026] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0027] In the drawings:

[0028] Figure 1 The front side view schematic diagram of the whole application is shown;

[0029] Figure 2 The rear side view schematic diagram of the whole application is shown;

[0030] Figure 3 The bottom side view schematic diagram of the whole application is shown;

[0031] Figure 4 The relative position relationship diagram of the welding torch and the door and window frame in the application is shown; Figure 3 The enlarged structure schematic diagram of part A in the application is shown;

[0032] Figure 5 The relative position relationship diagram of the welding torch and the door and window frame in the application is shown;

[0033] Figure 6 The transmission relationship diagram of the bevel gear and the bevel gear ring in the application is shown;

[0034] Figure 7 The disassembled state schematic diagram of the bevel gear ring and the clamping plate in the application is shown;

[0035] Figure 8 The structure schematic diagram of the swing frame and the sliding assembly in the application is shown;

[0036] Figure 9 The electrical control flow chart of the application is shown.

[0037] List of reference signs:

[0038] 1, U-shaped frame; 101, U-shaped horizontal frame; 1011, positioning ring; 102, L-shaped retaining rod;

[0039] 2, rectangular retaining frame; 201, U-shaped mounting frame; 202, transversely arranged rack; 203, sliding assembly; 2031, U-shaped connecting frame; 2032, T-shaped sliding member; 2033, pipe sleeve; 2034, six-ribbed guide shaft; 2035, baffle disc; 2036, sliding ring; 2037, limiting ring; 2038, trigger plate; 204, T-shaped sliding groove;

[0040] 3, motor; 301, driving wheel; 302, connecting rod;

[0041] 4, welding torch; 5, bevel gear ring;

[0042] 6, swing frame; 601, swing shaft; 6011, spur gear; 602, L-shaped swing rod; 6021, pull rod;

[0043] 7, U-shaped positioning frame; 701, centering shaft; 7011, guide shaft; 7012, sliding sleeve; 7013, inclined pull rod; 7014, holding rod; 7015, handle; 702, clamping plate; 7021, threaded advancing shaft; 703, threaded sleeve; 704, bevel gear;

[0044] 8, sliding positioning member; 801, shaft ring; 802, insertion shaft;

[0045] 9, photoelectric switch; 10, electric control box; 11, door and window frame; 12, rectangular box frame; 13, main machine;

[0046] 14, wire feeding mechanism; 1401, wire feeding hose. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions will be described below in connection with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present application.

[0048] The following is an embodiment provided by the present application, please refer to Figures 1 to 8 :

[0049] The embodiment provides an arc welding equipment for door and window manufacturing, which comprises a rectangular holding frame 2, two sliding assemblies 203 symmetrically and slidingly installed at the bottom of the rectangular holding frame 2, and a motor 3 fixedly hung above the rectangular holding frame 2; a driving wheel 301 is fixedly sleeved on the rotating 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 members 2032 symmetrically welded at 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 members 2032, a six-rib guide shaft 2034 is welded at the bottom end of one T-shaped sliding member 2032, and a sliding ring 2036 is slidingly sleeved on the six-rib guide shaft 2034 in the form of spring pushing; the swing frame 6 is composed of a swing shaft 601 and two symmetrically arranged L-shaped swing rods 602 symmetrically welded on the swing shaft 601, a welding gun 4 is fixedly penetrated through the bottom end of the L-shaped swing rod 602, a spur gear 6011 is fixedly sleeved at one end of the swing shaft 601, and a pull rod 6021 is rotatably connected between the sliding ring 2036 and the top end of the corresponding L-shaped swing rod 602; two transversely arranged racks 202 are symmetrically welded at the bottom sides of the two end portions of one long side rod of the rectangular holding frame 2, the spur gear 6011 is in contact and engagement with the corresponding transversely arranged rack 202 when sliding away from the motor 3, and two parallel arranged connecting rods 302 are rotatably connected between the wheel rim of the driving wheel 301 and the middle portions of the two U-shaped connecting frames 2031.

[0050] Preferably, the bottom side of the two long side rods of the rectangular holding frame 2 is provided with a T-shaped sliding groove 204, and the top end of the T-shaped sliding member 2032 is in sliding cooperation with the T-shaped sliding groove 204.

[0051] Preferably, the front end and the tail end of the six-rib guide shaft 2034 are respectively fixedly connected with a limiting ring 2037 and a baffle disc 2035, and a sliding ring 2036 is located between the limiting ring 2037 and the baffle disc 2035; a spring for pushing the sliding ring 2036 is sleeved on the six-rib guide shaft 2034 and is compressed and clamped between the sliding ring 2036 and the baffle disc 2035, and the sliding ring 2036 abuts against the limiting ring 2037.

[0052] Preferably, one end of one long side rod of the rectangular holding frame 2 is fixedly provided with two photoelectric switches 9 arranged at intervals on the outside; one short side rod of the U-shaped connecting frame 2031 is welded with a trigger plate 2038 on the outside, and when the trigger plate 2038 slides in the transverse direction, it successively passes through the space below the two photoelectric switches 9 and successively blocks the triggering of the two photoelectric switches 9.

[0053] Preferably, the bottom of the two long side rods of the rectangular holding frame 2 is symmetrically welded with two U-shaped racks 1, one of which is fixedly provided with an electric control box 10, and the inside of the electric control box 10 is provided with a frequency converter, the two photoelectric switches 9 are in communication connection with the frequency converter, and 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; the top end of the motor 3 is fixedly connected with the middle part of the U-shaped mounting frame 201 welded on the top end of the rectangular holding frame 2.

[0054] Preferably, the two U-shaped racks 1 are symmetrically welded with two U-shaped horizontal racks 101, and the two U-shaped horizontal racks 101 are symmetrically rotatably installed with two U-shaped positioning frames 7, and the center of the vertical side plate of the U-shaped positioning frame 7 is fixedly connected with a centering shaft 701; the centering shaft 701 penetrates and rotatably cooperates with the middle part of the U-shaped horizontal rack 101, and the tail end of the centering shaft 701 is rotatably installed with a conical gear ring 5.

[0055] Preferably, the inside of the U-shaped positioning frame 7 is symmetrically slidably installed with two clamping plates 702, one long side edge of the clamping plate 702 is slidably attached to the vertical side plate of the U-shaped positioning frame 7, and the top end center of the clamping plate 702 is fixedly connected with a threaded advancing shaft 7021; the middle part of the upper and lower side plates of the U-shaped positioning frame 7 is symmetrically rotatably installed with two threaded sleeves 703, and the ends of the two threaded sleeves 703, which are opposite to each other, are fixedly sleeved with conical gears 704, the threaded advancing shaft 7021 is threadedly engaged with the threaded sleeve 703, and the conical gear ring 5 is engaged and driven with the two conical gears 704.

[0056] Preferably, the middle part of the U-shaped horizontal frame 101 is welded with a positioning ring 1011 outside, the positioning ring 1011 is arranged concentrically with the centering shaft 701 of the corresponding side, the centering shaft 701 is arranged protruding and lengthening, the part of the centering shaft 701 in the positioning ring 1011 is fixedly connected with two guide shafts 7011 symmetrically, the part of the centering shaft 701 protruding from the positioning ring 1011 is slidingly installed with a sliding sleeve 7012, the outer periphery of the positioning ring 1011 is welded with two handle bars 7014 symmetrically, the first end of the centering shaft 701 is welded with two handle bars 7015 symmetrically; the first end of the two guide shafts 7011 is in sliding fit with the inner periphery of the positioning ring 1011, the two guide shafts 7011 are slidingly installed with two sliding positioning pieces 8 symmetrically, the sliding positioning piece 8 is integrally formed by a shaft ring 801 and two symmetrically arranged insertion shafts 802, the shaft ring 801 is in sliding fit with the guide shaft 7011, the part of the guide shaft 7011 between the shaft ring 801 and the centering shaft 701 is sleeved with a spring, the shaft ring 801 abuts against the inner periphery of the positioning ring 1011, and the two insertion shafts 802 are inserted into the wall of the positioning ring 1011 in fit.

[0057] Preferably, the door and window frame 11 to be welded is placed between the two U-shaped positioning frames 7 and clamped and positioned by the clamping plates 702, and the welding gun 4 is aligned with the butt joint weld formed between the transversely arranged side rod and the longitudinally arranged side rod of the door and window frame 11 in the transverse direction.

[0058] Preferably, the two vertical supporting rods on the same side of the two U-shaped racks 1 are symmetrically welded with two L-shaped retaining rods 102, the rectangular box frame 12 is fixedly installed between the two L-shaped retaining rods 102, the main machine 13 is fixedly installed inside the rectangular box frame 12, four wire feeding mechanisms 14 are fixedly arranged at the top end of the rectangular box frame 12, and a wire feeding hose 1401 is connected between the wire feeding mechanism 14 and the welding gun 4; the U-shaped connecting frame 2031 is fixedly connected with two pipe sleeves 2033 symmetrically, and the wire feeding hose 1401 passes through the pipe sleeve 2033 at the corresponding position; the control unit for controlling the start and stop of the main machine 13 and the wire feeding mechanism 14 is arranged inside the electric control box 10, and the photoelectric switch 9 is in communication connection with the control unit.

[0059] The specific details, implementation steps, functions and mutual relations of the features, and the roles of the features in the implementation of the technical solution of the above-mentioned embodiments are described and explained in detail as follows:

[0060] In the initial state and during disassembly and assembly of the door and window frame 11, the two swing frames 6 are driven away from each other to make the spur gears 6011 contact and engage with the transverse racks 202. In this working condition, the two swing frames 6 can be driven to symmetrically and synchronously overturn upward through the engagement and transmission of the spur gears 6011 and the transverse racks 202, so as to switch the L-shaped swing rods 602 and the welding guns 4 to a horizontal supporting state and to separate from the space close to the two longitudinal side rods of the door and window frame 11, thereby avoiding the non-adjustable space of the welding guns 4 and the long-term continuous state close to the two longitudinal side rods of the door and window frame 11 during disassembly and assembly of the door and window frame 11, which is easy to be collided and damaged or even broken by the unstable door and window frame 11 during hoisting and carrying, and is helpful to the anti-collision protection of the welding guns 4.

[0061] In the working state, the spur gears 6011 remain in a state of disengagement from the transverse racks 202, and the two L-shaped swing rods 602 and the four welding guns 4 are positioned and kept in an upright supporting state. The two connecting rods 302, the two sliding assemblies 203, and the drive wheels 301 are jointly connected to form a double-crank slider mechanism. Through this mechanism, the forward and reverse reciprocating rotation of the motor 3 can drive the two sliding assemblies 203 and the four upright supporting welding guns 4 to reciprocally slide along the two T-shaped sliding grooves 204 in the longitudinal direction to perform welding on the four longitudinal welds formed between the two transverse side rods and the two longitudinal side rods of the door and window frame 11. In addition, through this double-crank slider mechanism, the motor 3 can also be rotated forward and backward to drive the two sliding assemblies 203 and the two swing frames 6 to slide back and forth in the longitudinal direction, control the contact and engagement power coupling and disengagement power decoupling of the two spur gears 6011 and the two transverse racks 202, and implement the upward swing space and downward reset of the two swing frames 6 and the four welding guns 4. In this way, the upward swing space and downward reset operation of the four welding guns 4 and the reciprocating sliding welding operation can be driven and performed by the same motor 3 and the same double-crank slider mechanism, which can save the need to configure separate driving units and transmission mechanisms such as double-crank slider mechanisms for the above two operations, and is helpful to reduce the cost and energy consumption of the welding machining device. It should be noted that how to control the motor 3 to make the above two operations independent of each other when driven and performed by the same motor 3, which will be described in detail below.

[0062] The working principle of the embodiment is as follows: the door and window frame 11 is pre-point welded and shaped before welding (that is, the two horizontal side rods and the vertical side rods of the door and window frame 11 are fixed together by point welding to form a rectangular structure of the door and window frame 11), and during welding, the door and window frame 11 to be welded is first hoisted or carried 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 straight gears 6011 are in contact with the two horizontal racks 202, and the two swing frames 6 and the four welding guns 4 are kept in the use state of the upper swing horizontal position. Then, after the above operation is completed, the two swing frames 6 and the four welding guns 4 need to be reset to the vertical support welding use state. It is noted that the space operation of the four welding guns 4 is implemented by the positive and reverse rotation of the jog control motor 3. When the four welding guns 4 are reset, the motor 3 is first started, and the motor 3 drives the driving wheel 301 to rotate forward. When the driving wheel 301 is driven to rotate forward, the two sliding assemblies 203, the two swing frames 6 and the two straight gears 6011 are driven to slide close to each other through the double-crank slider mechanism. When the two straight gears 6011 are driven to slide close to each other, they are driven to rotate reversely synchronously by the two horizontal racks 202. When the two straight gears 6011 are driven to rotate reversely synchronously, the two swing frames 6 and the four welding guns 4 are driven to reset symmetrically to the vertical welding use state. The sliding ring 2036, the pull rod 6021 and the L-shaped swing rod 602 together constitute a single-crank slider mechanism. When the straight gear 6011 is decoupled from the horizontal rack 202 through the mechanism, the sliding ring 2036 can be slidably abutted on the limiting ring 2037 under the top push of the spring on the six-rib guide shaft 2034, so as to top push and keep the swing frame 6 and the four welding guns 4 in the vertical welding use state, so as to ensure that the four welding guns 4 can stably reciprocate and slide for welding in the subsequent process. In the above process, when the two sliding assemblies 203 are driven away from each other, the straight gear 6011 is separated from the horizontal rack 202. When the straight gear 6011 is separated from the horizontal rack 202, the trigger plate 2038 is driven by the sliding assembly 203 to slide below the photoelectric switch 9 away from the motor 3 and block the photoelectric switch 9. After the photoelectric switch 9 is triggered, it transmits a trigger signal to the control unit. After the control unit receives the trigger signal, the main machine 13 and the wire feeding mechanism 14 are started. Thereafter, as the driving wheel 301 continues to rotate forward, the four welding guns 4 kept in the vertical welding state are continuously driven to slide close to each other. In this process, when the four welding guns 4 approach the four welds on the door and window frame 11, the welding wire delivered therefrom contacts the weld to arc and follow the continuous sliding of the welding gun 4 to weld the weld. After the welding gun 4 and the weld are separated by sliding to complete the welding, the trigger plate 2038 slides below the photoelectric switch 9 close to the motor 3 and blocks the photoelectric switch 9. After the photoelectric switch 9 is triggered, it transmits a trigger signal to the frequency converter and the control unit. When the frequency converter receives the trigger signal, the motor 3 is switched to the reverse running state.The control unit stops the host 13 and the wire feeding mechanism 14 upon receiving the trigger signal, and the motor 3 is switched to reverse rotation, driving the two sliding assemblies 203 and the four welding guns 4 to slide away from each other. During this process, when the trigger plate 2038 slides with the sliding assembly 203 to below the photoelectric switch 9 away from the motor 3, the photoelectric switch 9 is triggered, and after the photoelectric switch 9 is triggered, a trigger signal is transmitted to the frequency converter. Upon receiving the trigger signal, the frequency converter stops the motor 3, and the four welding guns 4 stop and remain in the temporary idle state close to the two longitudinal side bars of the door and window frame 11 (see Figure 1 ). Then, the door and window frame 11 is welded by turning over through the two centering shafts 701 and the U-shaped positioning frame 7. When the bottom surface of the door and window frame 11 is turned upward, the motor 3 is restarted and the host 13 and the wire feeding mechanism 14 are connected. Then, the motor 3 is rotated forward, and the double-crank slider mechanism, the swing frame 6, and the welding gun 4 repeat the above process to weld the four welds on the turned-over side. After completing the welding of the four welds, the motor 3, the host 13, and the wire feeding mechanism 14 are stopped, and the four welding guns 4 stop and remain in the temporary idle state close to the two longitudinal side bars of the door and window frame 11 (see Figure 1 ). Then, the completed door and window frame 11 is removed. Before unloading, the motor 3 is controlled to reverse, driving the two sliding assemblies 203 and the swing frame 6 to slide away from each other, so that the two straight gears 6011 and the two horizontal racks 202 are in contact and engaged, driving the two swing frames 6 and the four welding guns 4 to switch to the upper swing horizontal position to avoid collision damage to the welding guns 4 during disassembly and subsequent reinstallation of the new door and window frame 11. Finally, the new un-welded door and window frame 11 is replaced and fixed between the two U-shaped positioning frames 7, and the above processes are repeated for welding again. In this way, continuous welding of the door and window frame 11 can be achieved.

[0063] The four insertion shafts 802 on the two sliding positioning members 8 are inserted into the circumferential wall of the positioning ring 1011, so that the door and window frame 11 is positioned in a horizontal state to receive stable and effective welding, and the two sliding positioning members 8 are kept in the inserted and positioned state by the springs on the two guide shafts 7011; the sliding sleeve 7012, the two inclined pull rods 7013 and the two sliding positioning members 8 are connected together to form a crank slider mechanism in the form of a double crank, and sliding the sliding sleeve 7012 towards or away from the positioning ring 1011 can drive the two sliding positioning members 8 to slide towards or away from each other, so as to control the insertion or separation of the insertion shafts 802 and the positioning ring 1011, and lock or unlock the U-shaped positioning frame 7 and the door and window frame 11; before the door and window frame 11 is turned over, the sliding positioning members 8 need to be operated to unlock the U-shaped positioning frame 7 and the door and window frame 11, and after the turning over is completed, the sliding positioning members 8 need to be operated to lock the U-shaped positioning frame 7 and the door and window frame 11 again; the hand drives the sliding sleeve 7012 to slide through the holding rod 7014; the turning over operation of the door and window frame 11 is driven and performed by holding the two handle rods 7015 with the hand.

[0064] Through the two bevel gears 704, the positive and negative rotation of the bevel gear ring 5 can be engaged to drive the two threaded sleeves 703 to rotate back and forth, so as to drive the two threaded push shafts 7021 and the clamping plates 702 to slide towards or away from each other synchronously, and the tightness of the two clamping plates 702 on the door and window frame 11 is conveniently completed at one time.

[0065] It is worth noting that the composition of the control unit, the model selection of the frequency converter and the photoelectric switch 9, the connection wiring mode of the control unit and the main machine 13 and the wire feeding mechanism 14, the connection wiring mode of the frequency converter and the motor 3, the connection wiring mode of the photoelectric switch 9 and the control unit and the motor 3, and the control principle of the frequency converter on the motor 3 are all prior art for those skilled in the art engaged in equipment electrical automation transformation, design and maintenance testing, and therefore will not be described here.

[0066] It is worth noting that the welding processing device needs to be matched with an external carbon dioxide protective gas source, the carbon dioxide protective gas source is connected to the gas inlet nozzle of the wire feeding mechanism 14 through a high-pressure gas pipe, and the shape and structure of the main machine 13 and the wire feeding mechanism 14 and the connection wiring mode therebetween are all prior art for those skilled in the art engaged in equipment design and maintenance, and therefore will not be described here.

[0067] In this paper, the following points need attention:

[0068] 1. The drawings of the embodiments of the present application only involve the structures involved in the embodiments of the present application, and other structures can refer to the usual design.

[0069] 2. Embodiments of the application and features of embodiments can be combined with each other, provided that there is no conflict, to obtain new embodiments.

[0070] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection 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 A welding torch (4) is fixedly inserted through the bottom part of the L-shaped swing arm (602), and a spur gear (6011) is fixedly fitted onto one end of the swing shaft (601). A pull rod (6021) is rotatably connected between the slip ring (2036) and the L-shaped swing arm (602) on the corresponding side. Two horizontal racks (202) are symmetrically welded to the bottom side of the rectangular retaining frame (2). When the spur gear (6011) slides away from the motor (3), it contacts and meshes with the horizontal rack (202) on the corresponding side. Two parallel connecting rods (302) are rotatably connected between the drive wheel (301) and the two U-shaped connecting frames (2031). Two U-shaped frames (1) are symmetrically welded to the bottom of the two long side rods of the rectangular retaining frame (2); two U-shaped horizontal frames (101) are symmetrically welded to the two U-shaped frames (1), and two U-shaped positioning frames (7) are symmetrically rotatably mounted 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 mounted on the tail end of the centering shaft (701); and symmetrical sliding installations are made inside the U-shaped positioning frame (7). Two clamping plates (702) are provided. One long side of the clamping plate (702) slides and fits against 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 fitted on the opposite ends of the two threaded sleeves (703). 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.

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, An electrical control box (10) is fixedly installed on a U-shaped frame (1). The electrical control box (10) contains a frequency converter. Two photoelectric switches (9) are connected to the frequency converter. The two photoelectric switches (9) are used to switch the direction of the motor (3) through the frequency converter and control the start and stop of the motor (3). 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 1, 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).

7. The arc welding equipment for door and window manufacturing according to claim 1, 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.

8. The arc welding equipment for door and window manufacturing according to claim 1, 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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