Laser welding device for elevator door plate

Abstract

The invention belongs to the technical field of welding equipment, and particularly provides an elevator door plate laser welding device which comprises a base, a rotary supporting cylinder and a door plate fixator. According to the device, an original linear elevator door plate welding production line structure is changed into an annular structure, the elevator door plate rotates to different stations around the center fixing column under the fixing of the door plate fixing device, corresponding welding procedures are carried out, the integration of equipment is improved, and the space occupied by the equipment is saved; the door plate fixator flexibly fixes the elevator door plates through the upper fixing piece, the lower fixing piece and the side fixing pieces correspondingly, and the fixing requirements of the elevator door plates of different sizes are met. The reinforcing rib carrier moves the door plate reinforcing rib to the elevator door plate through the reinforcing rib clamp and drives the coordination gear to rotate synchronously through the synchronous gear, so that the reinforcing rib welding head moves from top to bottom, and different positions of the door plate reinforcing rib are automatically welded.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and specifically provides a laser welding device for an elevator door panel. Background Art

[0002] As an important part of the elevator, the quality and stability of the elevator door panel are directly related to the safety and service life of the elevator. In the manufacturing process of the elevator door panel, welding is a commonly used connection method, which is used to firmly connect the various components of the door panel together.

[0003] With the continuous development of intelligent manufacturing technology, the welding process of elevator door panels is also constantly innovating and improving. Some advanced welding equipment and automated production lines have been applied to the manufacturing process of elevator door panels, which has improved welding efficiency and product quality. When manufacturing elevator door panels, the edge of the stainless steel plate is first bent to form a head, and then the reinforcement is placed on the panel through a robotic arm, and the reinforcement is welded to the panel through a laser welding device. However, the existing elevator door panel laser welding production line is long, the required equipment occupies a large area, the space utilization rate is not high, and there are many processes in the manufacturing process. Each process is arranged independently, so that each process needs to be transferred to complete the connection, resulting in low processing efficiency of the door panel.

[0004] Therefore, it is necessary to propose a laser welding device for elevator door panels to solve the technical problems existing in the existing laser welding process of elevator door panels. Summary of the invention

[0005] In order to solve the above-mentioned existing problems, the present invention provides a laser welding device for elevator door panels, which transforms the original linear elevator door panel welding production line structure into a ring structure. The elevator door panel is rotated around the central fixing column to different workstations under the fixation of the door panel fixer to perform corresponding welding processes, thereby improving the integration of the equipment and saving the space occupied by the equipment; the door panel fixer flexibly fixes the elevator door panel in the front and back, up and down, and left and right directions through the upper and lower fixings and the side fixings, and adapts to the fixing requirements of elevator door panels of different sizes through the movement of the upper and lower fixings and the side fixings; the reinforcement rib carrier combines the two processes of transporting the door panel reinforcement ribs and welding into one, and moves the door panel reinforcement ribs to the elevator door panel through the reinforcement rib clamp. At this time, the synchronous motor starts, and the coordination gear is driven to rotate synchronously through the synchronous gear, so that the reinforcement rib welding head moves from top to bottom, and automatically welds different positions of the door panel reinforcement ribs.

[0006] To achieve the above-mentioned purpose, the present invention provides a laser welding device for elevator door panels, comprising a base, a central fixing column is fixedly provided at the center of the upper wall of the base, a rotating support cylinder is rotatably sleeved on the outer wall of the central fixing column, a door panel fixer is movably provided in an annular array on the outer side of the rotating support cylinder, a main lifting slot is fixedly provided in an annular array on the side wall of the rotating support cylinder, a main transverse slot is fixedly provided in the middle of the side wall of the main lifting slot, the main transverse slot and the main lifting slot are arranged perpendicular to each other, a main lifting screw rod is rotatably provided in the main lifting slot, a main transverse screw rod is rotatably provided in the main transverse slot, and the door panel fixer comprises upper and lower fixing members and side fixing members, the upper and lower fixing members are symmetrically slidably arranged on the main lifting slot, the side fixing members are symmetrically slidably arranged on the main transverse slot along the extension direction of the main transverse slot, and the upper and lower fixing members include The cam is a vertical cam that is fixed on the top of the support plate, and the cam is connected with the first linking arm to form a circle around the support plate, and the cam is connected with the second linking arm to form a circle around the support plate.

[0007] Furthermore, the number of the main lifting slots is set to four, the main lifting screw rod, the main horizontal screw rod and the limit screw rod are double-threaded screw rods respectively, the main lifting block, the horizontal slider and the limit slider are respectively connected to the main lifting screw rod, the main horizontal screw rod and the limit screw rod, and the thread rotation directions are opposite, and the length direction of the limit rod is parallel to the moving direction of the first limit block; the door panel fixer is clamped with an elevator door panel, the limit rods are respectively in contact with the upper and lower walls of the elevator door panel, and the first limit block is clamped on the upper and lower walls of the elevator door panel. The end side wall, the second limit block is clamped in the middle of the side wall of the elevator door panel; the upper wall edge of the base is provided with support columns in a circular array, and the support columns are respectively arranged between adjacent door panel fixers, and the upper ends of the support columns and the upper ends of the central fixed columns are respectively connected with main movable grooves, and the main telescopic rods are respectively slidably provided below the main movable grooves along the extension direction of the main movable grooves, and the lower output ends of the main telescopic rods arranged counterclockwise are respectively connected with a loading conveyor, a reinforcement rib conveyor, a laser welding device and a unloading conveyor.

[0008] Furthermore, the loading and transporting device includes a first horizontal rotating axis, a first vertical rotating axis, a first push rod, a suction cup frame and an industrial fixed suction cup, the first horizontal rotating axis is arranged at the lower output end of the main telescopic rod, the first vertical rotating axis is arranged on the first horizontal rotating axis, the first push rod is arranged on the first vertical rotating axis, the suction cup frame is arranged at the output end of the first push rod, and the rectangular array of industrial fixed suction cups is fixed to the side wall of the suction cup frame.

[0009] Furthermore, the reinforcement rib carrier includes a second horizontal rotating axis, a second vertical rotating axis, a second push rod, a support block, a clamp frame, a screw frame, a welding slider, and a reinforcement rib welding head. The second horizontal rotating axis is arranged at the lower output end of the main telescopic rod, the second vertical rotating axis is arranged on the second horizontal rotating axis, the second push rod is arranged on the second vertical rotating axis, the support block is arranged at the output end of the second push rod, the clamp frame is fixedly arranged on the side wall of the support block away from the second push rod, the screw frame is symmetrically fixedly arranged on both sides of the support block, side screws are respectively rotatably arranged on the screw frame, the welding slider is symmetrically slidably sleeved on the side screw, the welding slider is threadedly connected to the side screw, and the reinforcement rib welding heads are respectively fixedly arranged on the side walls of the welding slider.

[0010] Furthermore, reinforcing rib clamps are respectively provided at the upper and lower ends of the side walls of the clamp frame, and the door panel reinforcing ribs are clamped on the reinforcing rib clamps. The reinforcing rib welding heads are symmetrically arranged on both sides of the door panel reinforcing ribs, and the lower wall of the support block is provided with a synchronous motor. The output end of the synchronous motor is provided with a synchronous gear, and the lower end of the side screw rod is coaxially fixed with a coordination gear, and the coordination gears are respectively rotatably arranged on the lower wall of the screw rod frame, and the synchronous gears are respectively meshed with the coordination gears.

[0011] Furthermore, the laser welding device includes a slide groove connecting block, a vertical slide groove, a transverse slide groove and an adjustable welding head, the slide groove connecting block is fixedly arranged at the lower output end of the main telescopic rod, the vertical slide groove is fixedly arranged on the slide groove connecting block, a vertical screw rod is rotatably provided in the vertical slide groove, a transverse slider is slidably sleeved on the vertical screw rod, the transverse slider is threadedly connected to the vertical screw rod, the transverse slide groove is fixedly arranged on the transverse slider, a transverse screw rod is rotatably provided in the transverse slide groove, a welding head slider is slidably sleeved on the transverse screw rod, and the adjustable welding head is fixedly arranged on the side wall of the welding head slider.

[0012] Furthermore, the structure of the unloading conveyor is the same as that of the loading conveyor, a main horizontal screw rod is rotatably provided in the main movable groove, and main sliding blocks are fixedly provided at the upper ends of the main telescopic rods. The main sliding blocks are sleeved on the main horizontal screw rod, and the main sliding blocks are threadedly connected to the main horizontal screw rods respectively.

[0013] Furthermore, a loading conveyor belt, a reinforcement rib placement table and a unloading table are fixedly provided on the upper wall of the base, respectively; the loading conveyor belt is arranged opposite to the loading conveyor, the reinforcement rib placement table is arranged opposite to the reinforcement rib conveyor, and the unloading table is arranged opposite to the unloading conveyor; a main rotating motor is provided at the upper end of the central fixed column, a main rotating gear is provided at the output end of the main rotating motor, and rotating teeth are provided in a circular array on the inner wall of the upper end of the rotating support cylinder, and the main rotating gear is meshed with the rotating teeth.

[0014] Furthermore, a main horizontal motor is provided at the end of the main horizontal screw rod, and the output end of the main horizontal motor is connected to the end of the main horizontal screw rod; a main lifting motor is provided at the upper end of the main lifting screw rod, and the output end of the main lifting motor is connected to the main lifting screw rod; a main horizontal motor is provided at the end of the main horizontal screw rod, and the output end of the main horizontal motor is connected to the main horizontal screw rod; a limit motor is provided at the end of the limit screw rod, and the output end of the limit motor is connected to the end of the limit screw rod; a vertical motor is provided at the end of the vertical screw rod, and the output end of the vertical motor is connected to the end of the vertical screw rod; a horizontal motor is provided at the end of the horizontal screw rod, and the output end of the horizontal motor is connected to the end of the horizontal screw rod.

[0015] Furthermore, the first horizontal rotation axis, the first vertical rotation axis, the second horizontal rotation axis and the second vertical rotation axis are respectively electric rotation axes, the reinforcement rib clamp is an electric clamp, a main controller is provided on one side of the base, and a control panel is provided on the upper end of the main controller, and the main rotating motor, the main horizontal motor, the main lifting motor, the main horizontal motor, the limit motor, the main telescopic rod, the first horizontal rotation axis, the first vertical rotation axis, the first push rod, the industrial fixed suction cup, the second horizontal rotation axis, the second vertical rotation axis, the second push rod, the synchronous motor, the reinforcement rib clamp, the reinforcement rib welding head, the vertical motor, the horizontal motor, the adjustable welding head and the control panel are respectively connected to the main controller through wires.

[0016] Furthermore, the main controller adopts Siemens S7-1200, and the industrial fixed suction cup adopts Tomi TW series vacuum transporter.

[0017] The beneficial effects achieved by the present invention using the above structure are: (1) This device transforms the original linear elevator door panel welding production line structure into a ring structure. The main rotating motor in the central fixed column can drive the main rotating gear to rotate. The main rotating gear meshes with the rotating teeth arranged on the inner wall of the rotating support cylinder to realize the rotation of the rotating support cylinder, and then realize the rotation of the door panel holder. The elevator door panel is fixed by the door panel holder and rotates around the central fixed column to different workstations, so as to carry out the corresponding welding process. The integration of the equipment is improved, the space occupied by the equipment is saved, and the production efficiency is improved. (2) The door panel fixer flexibly fixes the elevator door panel in the front and back, up and down, and left and right directions through the upper and lower fixing parts and the side fixing parts. The main lifting motor can drive the main lifting screw to rotate, so that the main lifting block moves toward or away from each other, thereby changing the distance between the upper and lower limit rods to adapt to elevator door panels of different heights. The main horizontal motor can drive the main horizontal screw to rotate, so that the horizontal slider moves toward or away from each other, thereby changing the distance between the second limit blocks to adapt to elevator door panels of different widths. Similarly, the limit motor drives the limit screw to rotate, so that the limit slider moves toward or away from each other, thereby changing the distance between the first limit blocks to adapt to elevator door panels of different thicknesses. Through the adaptive movement of the upper and lower fixing parts and the side fixing parts, the flexible fixing effect of elevator door panels of different sizes is achieved; (3) The main telescopic rod can move along the main moving groove respectively, so that the loading conveyor, the reinforcement rib conveyor, the laser welding device and the unloading conveyor are close to or away from the door panel holder. At the same time, the main telescopic rod can adjust the height position of the loading conveyor, the reinforcement rib conveyor, the laser welding device and the unloading conveyor according to actual use requirements, and complete the processes of elevator door panel loading, door panel reinforcement rib welding, head welding and elevator door panel unloading in sequence with the rotation of the door panel holder; (4) The loading conveyor flexibly adjusts the angles of the suction cup frame and the industrial fixed suction cup through the first horizontal rotation axis and the first vertical rotation axis, so that the industrial fixed suction cup can take the elevator door panel from the loading conveyor belt to the position of the door panel holder according to the use requirements, and the door panel holder automatically fixes it, thereby realizing the automatic loading function of the elevator door panel; (5) The rib carrier combines the two processes of transporting door panel ribs and welding into one, which reduces the transportation time of elevator door panels and improves production efficiency. The angles of the fixture frame and the rib fixture are flexibly adjusted through the second horizontal rotation axis and the second vertical rotation axis. The door panel ribs are moved from the rib placement table to the elevator door panel through the rib fixture. At this time, the synchronous motor is started, and the synchronous gear drives the coordination gear to rotate synchronously, so that the rib welding head moves from top to bottom, and the different positions of the door panel ribs are automatically welded; (6) This device uses a laser welding device to flexibly adjust the position of the adjustable welding head. The vertical motor can drive the vertical screw to rotate, so that the horizontal slider slides along the vertical screw, thereby achieving the effect of adjusting the vertical position of the horizontal slide. At the same time, the horizontal motor can drive the horizontal screw to rotate, so that the welding head slider slides along the horizontal screw, thereby achieving the effect of adjusting the horizontal position of the adjustable welding head. The position of the adjustable welding head can be flexibly adjusted according to production needs, and laser welding can be performed on the head positions of elevator door panels of different sizes to further enhance the overall strength of the elevator door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a laser welding device for an elevator door panel provided by the present invention; Figure 2 A top view of a laser welding device for an elevator door panel provided by the present invention; Figure 3 for Figure 2 Sectional view in the AA direction; Figure 4 for Figure 3 A magnified schematic diagram of part B; Figure 5 It is a schematic diagram of the connection structure of the rotating support cylinder, the main lifting groove, the main lifting screw rod, the main transverse groove, the main transverse screw rod and the door panel fixer; Figure 6 It is a schematic diagram of the exploded structure of the door panel fastener; Figure 7 A schematic diagram of the structure of the main telescopic rod, the loading material handling device, the reinforcing rib handling device, the laser welding device and the unloading material handling device; Figure 8 It is a structural schematic diagram of the loading and transporting device; Fig. 9 is a first structural schematic diagram of a reinforcement rib carrier; Fig.10 is a second structural schematic diagram of the reinforcement rib carrier; Fig.11 is a first structural schematic diagram of a laser welding device; Fig.12 is a second structural schematic diagram of the laser welding device; Fig.13 Schematic diagram of the connection structure of the main moving groove, the main horizontal screw rod, the main horizontal motor, the main sliding block and the main telescopic rod.

[0019] Among them, 1. base, 11. central fixed column, 111. main rotating motor, 112. main rotating gear, 12. support column, 13. main moving groove, 131. main horizontal screw rod, 132. main horizontal motor, 14. feeding conveyor belt, 15. reinforcing rib placement table, 16. unloading table, 2. rotating support cylinder, 21. main lifting groove, 22. main lifting screw rod, 221. main lifting motor, 23. main horizontal groove, 24. main horizontal screw rod, 241. main horizontal motor, 25. rotating teeth, 3. Door panel fixer, 31. Upper and lower fixings, 311. Main lifting block, 3111. First connecting arm, 312. Support plate, 313. Limit screw rod, 3131. Limit motor, 314. Limit slider, 3141. Connecting piece, 315. First limit block, 316. Limit rod, 32. Side fixings, 321. Horizontal slider, 322. Second connecting arm, 323. Second limit block, 4. Main telescopic rod, 41. Loading conveyor, 411. First horizontal rotation axis, 41 2. First vertical rotation axis, 413. First push rod, 414. Suction cup frame, 415. Industrial fixed suction cup, 42. Reinforcement rib carrier, 421. Second horizontal rotation axis, 422. Second vertical rotation axis, 423. Second push rod, 424. Support block, 4241. Synchronous motor, 4242. Synchronous gear, 425. Clamp frame, 4251. Reinforcement rib clamp, 426. Screw rod frame, 4261. Side screw rod, 4262. Coordination gear, 427. Welding slider, 4 28. Reinforcement rib welding head, 43. Laser welding device, 431. Slide connecting block, 432. Vertical slide, 4321. Vertical screw rod, 4322. Vertical motor, 433. Horizontal slide, 4331. Horizontal screw rod, 4332. Horizontal motor, 4333. Horizontal slider, 434. Adjustable welding head, 4341. Welding head slider, 44. Unloading transporter, 45. Main sliding block, 5. Main controller, 51. Control panel, 6. Elevator door panel, 7. Door panel reinforcement rib. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments. The parts of the technical features or connection relationships described in the present invention that are not described in detail are all existing technologies adopted.

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the present invention provides a laser welding device for elevator door panels, comprising a base 1, a rotating support cylinder 2 and a door panel fixer 3. A central fixing column 11 is fixedly provided at the center of the upper wall of the base 1, and a rotating support cylinder 2 is rotatably sleeved on the outer wall of the central fixing column 11. The door panel fixer 3 is movably arranged in a ring array on the outside of the rotating support cylinder 2. A main controller 5 is provided on one side of the base 1, and a control panel 51 is provided on the upper end of the main controller 5.

[0023] The upper wall edge of the base 1 is provided with support columns 12 in a circular array, and the support columns 12 are respectively arranged between adjacent door panel holders 3. The upper ends of the support columns 12 and the upper ends of the central fixed columns 11 are respectively connected with main moving grooves 13, and the main telescopic rods 4 are respectively provided below the main moving grooves 13 to slide along the extension direction of the main moving grooves 13. The upper wall of the base 1 is respectively fixed with a loading conveyor belt 14, a reinforcing rib placement platform 15 and a unloading platform 16; the upper end of the central fixed column 11 is provided with a main rotating motor 111, and the output end of the main rotating motor 111 is provided with a main rotating gear 112. A main horizontal screw rod 131 is rotatably provided in the main moving groove 13, and a main horizontal motor 132 is provided at the end of the main horizontal screw rod 131, and the output end of the main horizontal motor 132 is connected to the end of the main horizontal screw rod 131.

[0024] A main lifting groove 21 is fixedly provided in an annular array on the side wall of the rotating support cylinder 2. The number of the main lifting grooves 21 is set to four. A main transverse groove 23 is fixedly provided in the middle part of the side wall of the main lifting groove 21. The main transverse groove 23 and the main lifting groove 21 are arranged perpendicular to each other. A main lifting screw rod 22 is rotatably provided in the main lifting groove 21. A main transverse screw rod 24 is rotatably provided in the main transverse groove 23. A main lifting motor 221 is provided at the upper end of the main lifting screw rod 22. The output end of the main lifting motor 221 is connected to the main lifting screw rod 22. A main transverse motor 241 is provided at the end of the main transverse screw rod 24. The output end of the main transverse motor 241 is connected to the main transverse screw rod 24. A rotating tooth 25 is provided in an annular array on the inner wall of the upper end of the rotating support cylinder 2. The main rotating gear 112 is meshed with the rotating tooth 25.

[0025] The door panel fixer 3 includes an upper and lower fixing member 31 and a side fixing member 32. The upper and lower fixing members 31 are symmetrically slidably arranged on the main lifting groove 21, and the side fixing members 32 are symmetrically slidably arranged on the main transverse groove 23 along the extension direction of the main transverse groove 23. The upper and lower fixing members 31 include a main lifting block 311, a support plate 312, a limit screw rod 313, a limit slider 314, a first limit block 315 and a limit rod 316. The main lifting block 311 is symmetrically sleeved on the main lifting screw rod 22. The side walls of the main lifting block 311 are respectively fixed with first connecting arms 3111, and the support plates 312 are respectively fixed at the ends of the first connecting arms 3111. The limit screw rod 31 3 are respectively rotatably arranged on the opposite side of the support plate 312, the limiting slider 314 is symmetrically slidably sleeved on the limiting screw rod 313, the side wall of the limiting slider 314 is fixedly provided with a connecting piece 3141, the first limiting block 315 is fixedly arranged at the end of the connecting piece 3141, the limiting rod 316 is symmetrically fixedly arranged at both ends of the support plate 312, the side fixing member 32 includes a horizontal slider 321, a second connecting arm 322 and a second limiting block 323, the horizontal slider 321 is symmetrically slidably sleeved on the main horizontal screw rod 24, the second connecting arms 322 are respectively fixedly arranged on the side walls of the horizontal slider 321, and the second limiting blocks 323 are respectively fixedly arranged at the ends of the second connecting arms 322; A limiting motor 3131 is disposed at the end of the limiting screw rod 313 , and an output end of the limiting motor 3131 is connected to the end of the limiting screw rod 313 .

[0026] The main lifting screw 22, the main horizontal screw 24 and the limit screw 313 are double-threaded screws respectively, the main lifting block 311, the horizontal slider 321 and the limit slider 314 are respectively connected to the main lifting screw 22, the main horizontal screw 24 and the limit screw 313, and the thread rotation directions are opposite, the length direction of the limit rod 316 is parallel to the moving direction of the first limit block 315; the door panel fixer 3 is clamped with an elevator door panel 6, the limit rod 316 is respectively in contact with the upper and lower walls of the elevator door panel 6, the first limit block 315 is clamped on the upper and lower end side walls of the elevator door panel 6, and the second limit block 323 is clamped in the middle of the side wall of the elevator door panel 6.

[0027] The lower output end of the main telescopic rod 4 arranged counterclockwise is respectively connected to a loading conveyor 41, a reinforcing rib conveyor 42, a laser welding device 43 and a unloading conveyor 44, the loading conveyor belt 14 is arranged opposite to the loading conveyor 41, the reinforcing rib placement platform 15 is arranged opposite to the reinforcing rib conveyor 42, the unloading platform 16 is arranged opposite to the unloading conveyor 44, and the upper end of the main telescopic rod 4 is respectively fixed with a main sliding block 45, the main sliding block 45 is sleeved on the main horizontal screw rod 131, and the main sliding block 45 is respectively threadedly connected to the main horizontal screw rod 131; the loading conveyor 41 includes a first water The horizontal rotating shaft 411, the first vertical rotating shaft 412, the first push rod 413, the suction cup frame 414 and the industrial fixed suction cup 415, the first horizontal rotating shaft 411 is arranged at the lower output end of the main telescopic rod 4, the first vertical rotating shaft 412 is arranged on the first horizontal rotating shaft 411, the first push rod 413 is arranged on the first vertical rotating shaft 412, the suction cup frame 414 is arranged at the output end of the first push rod 413, the industrial fixed suction cup 415 is fixedly arranged on the side wall of the suction cup frame 414 in a rectangular array, and the first horizontal rotating shaft 411 and the first vertical rotating shaft 412 respectively adopt electric rotating shafts.

[0028] The reinforcing rib carrier 42 includes a second horizontal rotating shaft 421, a second vertical rotating shaft 422, a second push rod 423, a support block 424, a clamp frame 425, a screw frame 426, a welding slider 427, and a reinforcing rib welding head 428. The second horizontal rotating shaft 421 is arranged at the lower output end of the main telescopic rod 4, the second vertical rotating shaft 422 is arranged on the second horizontal rotating shaft 421, the second push rod 423 is arranged on the second vertical rotating shaft 422, and the support block 424 The clamp frame 425 is arranged at the output end of the second push rod 423, and is fixedly arranged on the side wall of the support block 424 away from the second push rod 423. The screw rod frame 426 is symmetrically fixedly arranged on both sides of the support block 424. The screw rod frame 426 is rotatably provided with side screw rods 4261, and the welding slider 427 is symmetrically slidably sleeved on the side screw rod 4261. The welding slider 427 is threadedly connected with the side screw rod 4261, and the reinforcing rib welding heads 428 are respectively fixedly arranged on the side walls of the welding slider 427; The upper and lower ends of the side walls of the clamp frame 425 are respectively provided with reinforcement clamps 4251, which are electric clamps. The reinforcement clamps 4251 clamp door panel reinforcement 7, and the reinforcement welding heads 428 are symmetrically arranged on both sides of the door panel reinforcement 7. The lower wall of the support block 424 is provided with a synchronous motor 4241, and the output end of the synchronous motor 4241 is provided with a synchronous gear 4242. The lower end of the side screw rod 4261 is coaxially fixed with a coordination gear 4262, and the coordination gears 4262 are respectively rotatably arranged on the lower wall of the screw rod frame 426, and the synchronous gears 4242 are respectively meshed with the coordination gears 4262. The second horizontal rotating shaft 421 and the second vertical rotating shaft 422 are respectively electric rotating shafts.

[0029] The laser welding device 43 includes a slide groove connection block 431, a vertical slide groove 432, a horizontal slide groove 433 and an adjustable welding head 434. The slide groove connection block 431 is fixedly arranged at the lower output end of the main telescopic rod 4, the vertical slide groove 432 is fixedly arranged on the slide groove connection block 431, a vertical screw rod 4321 is rotatably arranged in the vertical slide groove 432, a horizontal slider 4333 is slidably sleeved on the vertical screw rod 4321, and the horizontal slider 4333 is threadedly connected to the vertical screw rod 4321, the horizontal slide groove 433 is fixedly arranged on the horizontal slider 4333, a horizontal screw rod 4331 is rotatably arranged in the horizontal slide groove 433, a welding head slider 4341 is slidably sleeved on the horizontal screw rod 4331, and the adjustable welding head 434 is fixedly arranged on the side wall of the welding head slider 4341; A vertical motor 4322 is provided at the end of the vertical screw rod 4321, and an output end of the vertical motor 4322 is connected to the end of the vertical screw rod 4321. A horizontal motor 4332 is provided at the end of the horizontal screw rod 4331, and an output end of the horizontal motor 4332 is connected to the end of the horizontal screw rod 4331. The structure of the lower material conveyor 44 is the same as that of the upper material conveyor 41 .

[0030] The main rotating motor 111, the main horizontal motor 132, the main lifting motor 221, the main transverse motor 241, the limit motor 3131, the main telescopic rod 4, the first horizontal rotating axis 411, the first vertical rotating axis 412, the first push rod 413, the industrial fixed suction cup 415, the second horizontal rotating axis 421, the second vertical rotating axis 422, the second push rod 423, the synchronous motor 4241, the reinforcement clamp 4251, the reinforcement welding head 428, the vertical motor 4322, the transverse motor 4332, the adjustable welding head 434 and the control panel 51 are respectively connected to the main controller 5 through wires.

[0031] Working principle and workflow: This device transforms the original linear elevator door panel welding production line structure into a ring structure. The main rotating motor 111 in the central fixed column 11 can drive the main rotating gear 112 to rotate. The main rotating gear 112 is meshed with the rotating teeth 25 arranged on the inner wall of the rotating support cylinder 2 to realize the rotation of the rotating support cylinder 2, and then realize the rotation of the door panel fixer 3. The elevator door panel 6 is fixed around the central fixed column 11 to different workstations, so as to carry out the corresponding welding process. The integration of the equipment is improved, the space occupied by the equipment is saved, and the production efficiency is improved. The main telescopic rod 4 can move along the main moving groove 13 respectively, so that the loading conveyor 41, the reinforcement rib conveyor 42, the laser welding device 43 and the unloading conveyor 44 are close to or away from the door panel fixer 3. At the same time, the main telescopic rod 4 can adjust the height position of the loading conveyor 41, the reinforcement rib conveyor 42, the laser welding device 43 and the unloading conveyor 44 according to actual use requirements. When the loading process is completed, the main controller 5 controls the main rotating motor 111 to start according to the preset program, and the main rotating motor 111 drives the main rotating gear 112 to rotate, thereby rotating the rotating support cylinder 2 and the door panel fixer 3 by 90 degrees and reaching the next workstation, thereby completing the loading of the elevator door panel 6, welding of the door panel reinforcement 7, head welding and unloading of the elevator door panel 6.

[0032] When the device is in use, the loading conveyor belt 14 can continuously transport the elevator door panel 6 to be welded to the position of the loading carrier 41. The loading conveyor belt 14 adopts the existing conveyor belt technology, and its specific structure and principle are not introduced in detail here; the user controls the various components of the device through the control panel 51, and sends instructions to the various components of the device through the main controller 5 to realize the automatic operation of the device.

[0033] The loading transporter 41 flexibly adjusts the angles of the suction cup frame 414 and the industrial fixed suction cup 415 through the first horizontal rotating axis 411 and the first vertical rotating axis 412, so that the industrial fixed suction cup 415 can take the elevator door panel 6 from the loading conveyor belt 14 to the position of the door panel fixer 3 according to usage requirements, and automatically fix the door panel fixer 3 to achieve the automatic loading effect of the elevator door panel 6.

[0034] After the loading process is completed, the elevator door panel 6 fixed on the door panel fixer 3 automatically rotates 90 degrees and arrives at the next workstation to start the welding process of the door panel reinforcement 7. The reinforcement rib transporter 42 combines the two processes of transporting the door panel reinforcement 7 and welding into one, which reduces the transportation time of the elevator door panel 6 and improves production efficiency. The angles of the clamp frame 425 and the reinforcement rib clamp 4251 are flexibly adjusted through the second horizontal rotation axis 421 and the second vertical rotation axis 422. The door panel reinforcement 7 is moved from the reinforcement rib placement table 15 to the elevator door panel 6 through the reinforcement rib clamp 4251. At this time, the synchronous motor 4241 is started, and the coordination gear 4262 is driven to rotate synchronously through the synchronous gear 4242, so that the symmetrically arranged reinforcement rib welding head 428 moves from top to bottom, and automatically welds different positions of the door panel reinforcement 7.

[0035] After the welding of the door panel reinforcement 7 is completed, the door panel fixer 3 drives the elevator door panel 6 to rotate 90 degrees again and arrive at the next workstation to start the laser welding process of the head position of the elevator door panel 6. The laser welding device 43 flexibly adjusts the position of the adjustable welding head 434. The vertical motor 4322 can drive the vertical screw rod 4321 to rotate, so that the horizontal slider 4333 slides along the vertical screw rod 4321, thereby realizing the adjustment effect of the vertical position of the horizontal slide groove 433. At the same time, the horizontal motor 4332 can drive the horizontal screw rod 4331 to rotate, so that the welding head slider 4341 slides along the horizontal screw rod 4331, thereby realizing the adjustment effect of the horizontal position of the adjustable welding head 434. The position of the adjustable welding head 434 is flexibly adjusted according to production requirements, and the head positions of elevator door panels 6 of different sizes are laser welded to further enhance the overall strength of the elevator door panels 6.

[0036] After the above welding process, the door panel holder 3 continues to drive the elevator door panel 6 to rotate 90 degrees and reaches the last workstation. At this time, the unloading transporter 44 removes the welded elevator door panel 6 from the door panel holder 3 and stacks it on the unloading platform 16 for subsequent use.

[0037] The mechanical structures in the device, such as the industrial fixed suction cup 415, the reinforcement clamp 4251, the reinforcement welding head 428 and the adjustable welding head 434, are connected to the main controller 5 through wires. The method of controlling the mechanical structure through wires belongs to the well-known technology and will not be described here. The wires are not shown in the drawings.

[0038] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0039] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A laser welding device for an elevator door panel, comprising a base (1), characterized in that: A central fixing column (11) is fixedly provided at the center of the upper wall of the base (1); a rotating support cylinder (2) is rotatably sleeved on the outer wall of the central fixing column (11); a door panel fixer (3) is movably provided in an annular array on the outer side of the rotating support cylinder (2); a main lifting groove (21) is fixedly provided in an annular array on the side wall of the rotating support cylinder (2); a main transverse groove (23) is fixedly provided in the middle of the side wall of the main lifting groove (21); the main transverse groove (23) and the main lifting groove (21) are arranged perpendicular to each other; a main lifting screw rod (23) is rotatably provided in the main lifting groove (21) 22), a main transverse screw rod (24) is rotatably provided in the main transverse groove (23), the door panel fixer (3) comprises an upper and lower fixing member (31) and a side fixing member (32), the upper and lower fixing members (31) are symmetrically slidably provided on the main lifting groove (21) in an upper and lower direction, the side fixing member (32) is symmetrically slidably provided on the main transverse groove (23) along the extension direction of the main transverse groove (23), the upper and lower fixing members (31) comprise a main lifting block (311), a support plate (312), a limit screw rod (313), a limit slider (314), a first limit block (315) and The limiting rod (316) is symmetrically sleeved on the main lifting screw rod (22) in the upper and lower directions. The side walls of the main lifting block (311) are respectively fixed with first connecting arms (3111). The support plates (312) are respectively fixed at the ends of the first connecting arms (3111). The limiting screw rods (313) are respectively rotatably arranged on the opposite sides of the support plates (312). The limiting slider (314) is symmetrically slidably sleeved on the limiting screw rod (313). The side walls of the limiting slider (314) are fixed with connecting pieces (3141). The first limit block (315) is fixedly arranged at the end of the connecting piece (3141), the limit rod (316) is symmetrically fixedly arranged at the two ends of the support plate (312), the side fixing member (32) comprises a horizontal slider (321), a second connecting arm (322) and a second limit block (323), the horizontal slider (321) is symmetrically slidably sleeved on the main horizontal screw rod (24), the second connecting arm (322) is respectively fixedly arranged on the side wall of the horizontal slider (321), and the second limit block (323) is respectively fixedly arranged at the end of the second connecting arm (322).

2. The laser welding device for elevator door panels according to claim 1, characterized in that: The number of the main lifting grooves (21) is set to four, the main lifting screw rod (22), the main horizontal screw rod (24) and the limit screw rod (313) are double-threaded screw rods respectively, the main lifting block (311), the horizontal slider (321) and the limit slider (314) are respectively connected to the main lifting screw rod (22), the main horizontal screw rod (24) and the limit screw rod (313), and the thread rotation directions are opposite, and the length direction of the limit rod (316) is parallel to the moving direction of the first limit block (315); the door panel fixer (3) is clamped with an elevator door panel (6), the limit rod (316) is respectively in contact with the upper and lower walls of the elevator door panel (6), and the first limit block (315) is clamped on the elevator door panel (6) ), the second limit block (323) is clamped in the middle of the side wall of the elevator door panel (6); the upper wall edge of the base (1) is provided with a support column (12) in a circular array, the support column (12) is respectively arranged between adjacent door panel fixers (3), the upper end of the support column (12) and the upper end of the central fixed column (11) are respectively connected with a main movable groove (13), the lower part of the main movable groove (13) is respectively provided with a main telescopic rod (4) sliding along the extension direction of the main movable groove (13), and the lower output end of the main telescopic rod (4) arranged counterclockwise is respectively connected with a loading conveyor (41), a reinforcing rib conveyor (42), a laser welding device (43) and a unloading conveyor (44).

3. The laser welding device for elevator door panels according to claim 2, characterized in that: The loading and transporting device (41) comprises a first horizontal rotating shaft (411), a first vertical rotating shaft (412), a first push rod (413), a suction cup frame (414) and an industrial fixed suction cup (415), wherein the first horizontal rotating shaft (411) is arranged at the lower output end of the main telescopic rod (4), the first vertical rotating shaft (412) is arranged on the first horizontal rotating shaft (411), the first push rod (413) is arranged on the first vertical rotating shaft (412), the suction cup frame (414) is arranged at the output end of the first push rod (413), and the industrial fixed suction cup (415) is fixedly arranged in a rectangular array on the side wall of the suction cup frame (414).

4. The laser welding device for elevator door panels according to claim 3, characterized in that: The reinforcing rib carrier (42) comprises a second horizontal rotating shaft (421), a second vertical rotating shaft (422), a second push rod (423), a support block (424), a clamp frame (425), a screw frame (426), a welding slider (427), and a reinforcing rib welding head (428), wherein the second horizontal rotating shaft (421) is arranged at the lower output end of the main telescopic rod (4), the second vertical rotating shaft (422) is arranged on the second horizontal rotating shaft (421), the second push rod (423) is arranged on the second vertical rotating shaft (422), and the support block (424) is provided. ) is arranged at the output end of the second push rod (423), the clamp frame (425) is fixedly arranged on the side wall of the support block (424) away from the second push rod (423), the screw rod frame (426) is symmetrically fixedly arranged on both sides of the support block (424), and the side screw rods (4261) are rotatably arranged on the screw rod frame (426), the welding slider (427) is symmetrically slidably sleeved on the side screw rod (4261), the welding slider (427) is threadedly connected to the side screw rod (4261), and the reinforcing rib welding heads (428) are respectively fixedly arranged on the side walls of the welding slider (427).

5. The laser welding device for elevator door panels according to claim 4, characterized in that: The upper and lower ends of the side wall of the clamp frame (425) are respectively provided with reinforcing rib clamps (4251), the reinforcing rib clamps (4251) are provided with door panel reinforcing ribs (7), the reinforcing rib welding heads (428) are respectively symmetrically arranged on both sides of the door panel reinforcing ribs (7), the lower wall of the support block (424) is provided with a synchronous motor (4241), the output end of the synchronous motor (4241) is provided with a synchronous gear (4242), the lower end of the side screw rod (4261) is coaxially fixed with a coordination gear (4262), the coordination gear (4262) is respectively rotatably arranged on the lower wall of the screw rod frame (426), and the synchronous gear (4242) is respectively arranged to mesh with the coordination gear (4262).

6. The laser welding device for elevator door panels according to claim 5, characterized in that: The laser welding device (43) comprises a slide groove connection block (431), a vertical slide groove (432), a horizontal slide groove (433) and an adjustable welding head (434), wherein the slide groove connection block (431) is fixedly arranged at the lower output end of the main telescopic rod (4), the vertical slide groove (432) is fixedly arranged on the slide groove connection block (431), a vertical screw rod (4321) is rotatably arranged in the vertical slide groove (432), and a sliding sleeve is arranged on the vertical screw rod (4321). A transverse slider (4333) is provided, the transverse slider (4333) is threadedly connected to the vertical screw rod (4321), the transverse slide groove (433) is fixedly arranged on the transverse slider (4333), a transverse screw rod (4331) is rotatably arranged in the transverse slide groove (433), a welding head slider (4341) is slidably sleeved on the transverse screw rod (4331), and the adjustable welding head (434) is fixedly arranged on the side wall of the welding head slider (4341).

7. The laser welding device for elevator door panels according to claim 6, characterized in that: The structure of the unloading conveyor (44) is the same as that of the loading conveyor (41), a main horizontal screw rod (131) is rotatably provided in the main movable groove (13), and main sliding blocks (45) are fixedly provided at the upper ends of the main telescopic rods (4), and the main sliding blocks (45) are sleeved on the main horizontal screw rod (131), and the main sliding blocks (45) are respectively threadedly connected to the main horizontal screw rod (131).

8. The laser welding device for elevator door panels according to claim 7, characterized in that: A loading conveyor belt (14), a rib placement platform (15) and a unloading platform (16) are fixedly provided on the upper wall of the base (1), respectively; the loading conveyor belt (14) is arranged opposite to the loading conveyor (41), the rib placement platform (15) is arranged opposite to the rib conveyor (42), and the unloading platform (16) is arranged opposite to the unloading conveyor (44); a main rotating motor (111) is provided at the upper end of the central fixed column (11), a main rotating gear (112) is provided at the output end of the main rotating motor (111), and a rotating tooth (25) is provided in a circular array on the inner wall of the upper end of the rotating support cylinder (2), and the main rotating gear (112) is arranged to mesh with the rotating tooth (25).

9. The laser welding device for elevator door panels according to claim 8, characterized in that: A main horizontal motor (132) is provided at the end of the main horizontal screw rod (131), and the output end of the main horizontal motor (132) is connected to the end of the main horizontal screw rod (131). A main lifting motor (221) is provided at the upper end of the main lifting screw rod (22), and the output end of the main lifting motor (221) is connected to the main lifting screw rod (22). A main horizontal motor (241) is provided at the end of the main horizontal screw rod (24), and the output end of the main horizontal motor (241) is connected to the main horizontal screw rod (24). The limit screw rod A limit motor (3131) is provided at the end of the limit motor (3131), and the output end of the limit motor (3131) is connected to the end of the limit screw rod (313); a vertical motor (4322) is provided at the end of the vertical screw rod (4321), and the output end of the vertical motor (4322) is connected to the end of the vertical screw rod (4321); a horizontal motor (4332) is provided at the end of the horizontal screw rod (4331), and the output end of the horizontal motor (4332) is connected to the end of the horizontal screw rod (4331).

10. The laser welding device for elevator door panels according to claim 9, characterized in that: The first horizontal rotation axis (411), the first vertical rotation axis (412), the second horizontal rotation axis (421) and the second vertical rotation axis (422) are respectively electric rotation axes; the reinforcing rib clamp (4251) is an electric clamp; a main controller (5) is provided on one side of the base (1); a control panel (51) is provided on the upper end of the main controller (5); the main rotation motor (111), the main horizontal motor (132), the main lifting motor (221), the main horizontal motor (241), the limit motor (3131), the main extension motor (3132) and the main extension motor (3131) are respectively electric rotation axes; the reinforcing rib clamp (4251) is an electric clamp; a main controller (5) is provided on one side of the base (1); a control panel (51) is provided on the upper end of the main controller (5); The retractable rod (4), the first horizontal rotation axis (411), the first vertical rotation axis (412), the first push rod (413), the industrial fixed suction cup (415), the second horizontal rotation axis (421), the second vertical rotation axis (422), the second push rod (423), the synchronous motor (4241), the reinforcing rib clamp (4251), the reinforcing rib welding head (428), the vertical motor (4322), the horizontal motor (4332), the adjustable welding head (434) and the control panel (51) are respectively connected to the main controller (5) through wires.

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