A laser welding device for elevator door panels

Abstract

The present invention belongs to the technical field of welding equipment, and specifically provides a laser welding device for elevator door panels, including a base, a rotating support cylinder, and a door panel fixator. This device transforms the original linear structure of the elevator door panel welding production line into a circular structure. The elevator door panel rotates around the central fixed column to different workstations under the fixation of the door panel fixator, and corresponding welding processes are carried out. The integration of the equipment is improved, and the space occupied by the equipment is saved; the door panel fixator flexibly fixes the elevator door panel through upper and lower fixing parts and side fixing parts respectively, realizing the fixing requirements for elevator door panels of different sizes; the stiffener transporter moves the door panel stiffeners to the elevator door panel through the stiffener clamp, and drives the coordination gear to rotate synchronously through the synchronous gear, so that the stiffener welding head moves downward from top to bottom, automatically welding different positions of the door panel stiffeners.

Description

Technical Field

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

[0002] As an important part of an elevator, the quality and stability of the elevator door panel are directly related to the safety and service life of the elevator. During the manufacturing process of the elevator door panel, welding is a commonly used connection method 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, improving the welding efficiency and product quality. When manufacturing elevator door panels, first, the edge of the stainless steel plate is bent to form a head, and then the reinforcing rib is placed on the panel by a robotic arm, and the reinforcing rib and the panel are welded together by a laser welding device. However, the existing laser welding production line for elevator door panels is relatively long, the floor area required for the equipment is large, the space utilization rate is not high, and there are many processes in the manufacturing process. Each process is independently arranged, so that transfer is required between each process 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] To solve the above existing problems, the present invention provides a laser welding device for elevator door panels, which transforms the original linear structure of the elevator door panel welding production line into a circular structure. The elevator door panel rotates around the central fixed column to different workstations under the fixation of the door panel fixator, and corresponding welding processes are carried out, improving the integration of the equipment and saving the space occupied by the equipment. The door panel fixator 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, and moves the upper and lower fixing parts and the side fixing parts to adapt to the fixing requirements of elevator door panels of different sizes. The reinforcing rib transporter combines the two processes of transporting the door panel reinforcing rib and welding. The door panel reinforcing rib is moved to the elevator door panel by the reinforcing rib clamp. At this time, the synchronous motor starts, and the coordination gear is driven to rotate synchronously by the synchronous gear, so that the reinforcing rib welding head moves downward from top to bottom to automatically weld different positions of the door panel reinforcing rib.

[0006] To achieve the above object, a laser welding device for elevator door panels provided by the present invention includes 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. Door panel fixers are movably arranged in an annular array on the outside of the rotating support cylinder. Main lifting grooves are fixedly provided in an annular array on the side wall of the rotating support cylinder. A main horizontal groove is fixedly provided in the middle of the side wall of the main lifting groove. The main horizontal groove and the main lifting groove are arranged perpendicular to each other. A main lifting screw rod is rotatably arranged in the main lifting groove. A main horizontal screw rod is rotatably arranged in the main horizontal groove. The door panel fixer includes an upper and lower fixing member and a side fixing member. The upper and lower fixing members are symmetrically slid up and down on the main lifting groove. The side fixing member is symmetrically slid along the extending direction of the main horizontal groove on the main horizontal groove. The upper and lower fixing member includes a main lifting block, a support plate, a limit screw rod, a limit slider, a first limit block and a limit rod. The main lifting blocks are symmetrically sleeved up and down on the main lifting screw rod. First connecting arms are respectively fixedly provided on the side walls of the main lifting blocks. The support plates are respectively fixedly provided at the ends of the first connecting arms. The limit screw rods are respectively rotatably arranged on the opposite sides of the support plates. The limit sliders are symmetrically slidably sleeved on the limit screw rods. Connecting pieces are fixedly provided on the side walls of the limit sliders. The first limit blocks are fixedly provided at the ends of the connecting pieces. The limit rods are symmetrically fixedly provided at both ends of the support plates. The side fixing member includes a horizontal slider, a second connecting arm and a second limit block. The horizontal sliders are symmetrically slidably sleeved on the main horizontal screw rod. The second connecting arms are respectively fixedly provided on the side walls of the horizontal sliders. The second limit blocks are respectively fixedly provided at the ends of the second connecting arms.

[0007] Further, the number of the main lifting grooves is set to four. The main lifting screw rod, the main horizontal screw rod and the limit screw rod are respectively double-threaded screw rods. 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. The length direction of the limit rod is parallel to the moving direction of the first limit block. An elevator door panel is clamped on the door panel fixer. The limit rods are respectively in contact with the upper and lower walls of the elevator door panel. The first limit blocks are clamped on the upper and lower end side walls of the elevator door panel. The second limit blocks are clamped on the middle side wall of the elevator door panel. Support columns are arranged in an annular array on the edge of the upper wall of the base. The support columns are respectively arranged between adjacent door panel fixers. Main moving grooves are respectively connected between the upper ends of the support columns and the upper end of the central fixing column. Main telescopic rods are respectively slid along the extending direction of the main moving grooves below the main moving grooves. The lower output ends of the main telescopic rods arranged counterclockwise are respectively connected with a loading transporter, a reinforcing rib transporter, a laser welding device and an unloading transporter.

[0008] Further, the loading transporter includes a first horizontal rotating shaft, a first vertical rotating shaft, a first push rod, a suction cup holder, and industrial fixed suction cups. The first horizontal rotating shaft is arranged at the lower output end of the main telescopic rod. The first vertical rotating shaft is arranged on the first horizontal rotating shaft. The first push rod is arranged on the first vertical rotating shaft. The suction cup holder is arranged at the output end of the first push rod. The industrial fixed suction cups are fixedly arranged on the side wall of the suction cup holder in a rectangular array.

[0009] Further, the stiffener transporter includes a second horizontal rotating shaft, a second vertical rotating shaft, a second push rod, a support block, a fixture holder, a lead screw holder, a welding slider, and a stiffener welding head. The second horizontal rotating shaft is arranged at the lower output end of the main telescopic rod. The second vertical rotating shaft is arranged on the second horizontal rotating shaft. The second push rod is arranged on the second vertical rotating shaft. The support block is arranged at the output end of the second push rod. The fixture holder is fixedly arranged on the side wall of the support block away from the second push rod. The lead screw holders are symmetrically and fixedly arranged on both sides of the support block. Side lead screws are respectively rotatably arranged on the lead screw holders. The welding sliders are symmetrically slidably sleeved on the side lead screws. The welding sliders are threadedly connected with the side lead screws. The stiffener welding heads are respectively fixedly arranged on the side walls of the welding sliders.

[0010] Further, stiffener clamps are respectively arranged at the upper and lower ends of the side wall of the fixture holder. A door panel stiffener is clamped on the stiffener clamps. The stiffener welding heads are respectively symmetrically arranged on both sides of the door panel stiffener. A synchronous motor is arranged on the lower wall of the support block. A synchronous gear is arranged at the output end of the synchronous motor. Coordination gears are coaxially and fixedly arranged at the lower ends of the side lead screws. The coordination gears are respectively rotatably arranged on the lower walls of the lead screw holders. The synchronous gears are respectively meshed with the coordination gears.

[0011] Further, the laser welding device includes a chute connection block, a vertical chute, a horizontal chute, and an adjustable welding head. The chute connection block is fixedly arranged at the lower output end of the main telescopic rod. The vertical chute is fixedly arranged on the chute connection block. A vertical lead screw is rotatably arranged in the vertical chute. A horizontal slider is slidably sleeved on the vertical lead screw. The horizontal slider is threadedly connected with the vertical lead screw. The horizontal chute is fixedly arranged on the horizontal slider. A horizontal lead screw is rotatably arranged in the horizontal chute. A welding head slider is slidably sleeved on the horizontal lead screw. The adjustable welding head is fixedly arranged on the side wall of the welding head slider.

[0012] Further, the structure of the unloading transporter is the same as that of the loading transporter. A main horizontal lead screw is rotatably arranged in the main moving groove. Main sliding blocks are respectively fixedly arranged at the upper ends of the main telescopic rod. The main sliding blocks are sleeved on the main horizontal lead screw. The main sliding blocks are respectively threadedly connected with the main horizontal lead screw.

[0013] Furthermore, the upper wall of the base is respectively fixedly provided with a feeding conveyor belt, a reinforcing rib placement table and a discharging table. The feeding conveyor belt is arranged opposite to the feeding handler, the reinforcing rib placement table is arranged opposite to the reinforcing rib handler, and the discharging table is arranged opposite to the discharging handler. Inside the upper end of the central fixed column, there is a main rotation motor, and the output end of the main rotation motor is provided with a main rotation gear. The inner wall of the upper end of the rotating support cylinder is annularly and arrayedly provided with rotating teeth, and the main rotation gear is meshed with the rotating teeth.

[0014] Furthermore, the end of the main horizontal lead screw is provided with a main horizontal motor, and the output end of the main horizontal motor is connected to the end of the main horizontal lead screw. The upper end of the main lifting lead screw is provided with a main lifting motor, and the output end of the main lifting motor is connected to the main lifting lead screw. The end of the main transverse lead screw is provided with a main transverse motor, and the output end of the main transverse motor is connected to the main transverse lead screw. The end of the limit lead screw is provided with a limit motor, and the output end of the limit motor is connected to the end of the limit lead screw. The end of the vertical lead screw is provided with a vertical motor, and the output end of the vertical motor is connected to the end of the vertical lead screw. The end of the transverse lead screw is provided with a transverse motor, and the output end of the transverse motor is connected to the end of the transverse lead screw.

[0015] Furthermore, the first horizontal rotating shaft, the first vertical rotating shaft, the second horizontal rotating shaft and the second vertical rotating shaft respectively adopt electric rotating shafts, the reinforcing rib clamp adopts an electric clamp, and a main controller is arranged on one side of the base. The upper end of the main controller is provided with a control panel. The main rotation motor, the main horizontal motor, the main lifting motor, the main transverse motor, the limit motor, the main telescopic rod, the first horizontal rotating shaft, the first vertical rotating shaft, the first push rod, the industrial fixed suction cup, the second horizontal rotating shaft, the second vertical rotating shaft, the second push rod, the synchronous motor, the reinforcing rib clamp, the reinforcing rib welding head, the vertical motor, the transverse 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 Tuomi TW series vacuum handlers.

[0017] The beneficial effects achieved by the present invention with the above structure are as follows:

[0018] (1) This device transforms the original linear structure of the elevator door panel welding production line into a circular structure. The main rotation motor in the central fixed column can drive the main rotation gear to rotate. The main rotation gear is meshed with the rotating teeth arranged on the inner wall of the rotating support cylinder, realizing the rotation of the rotating support cylinder, and then realizing the rotation of the door panel fixator. The elevator door panel rotates around the central fixed column to different workstations under the fixation of the door panel fixator, so as to carry out corresponding welding processes. The integration of the equipment is improved, the occupied space of the equipment is saved, and the production efficiency is improved;

[0019] (2) The door panel fixator flexibly fixes the elevator door panel in the front-back, up-down, and left-right directions through the upper and lower fixing parts and the side fixing parts respectively. The main lifting motor can drive the main lifting screw rod to rotate, so that the main lifting blocks move towards or away from each other, and then change the distance between the upper and lower limit rods to adapt to elevator door panels of different height dimensions. The main horizontal motor can drive the main horizontal screw rod to rotate, so that the horizontal sliders move towards or away from each other, and then change the distance between the second limit blocks to adapt to elevator door panels of different width dimensions. Similarly, the limit motor drives the limit screw rod to rotate, so that the limit sliders move towards or away from each other, and then change the distance between the first limit blocks to adapt to elevator door panels of different thickness dimensions. 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;

[0020] (3) The main telescopic rod can move along the main moving groove respectively, so that the loading transporter, the stiffener transporter, the laser welding device, and the unloading transporter approach or move away from the door panel fixator. At the same time, the main telescopic rod can adjust the height positions of the loading transporter, the stiffener transporter, the laser welding device, and the unloading transporter according to the actual use requirements, and follow the rotation of the door panel fixator to sequentially complete the processes of loading the elevator door panel, welding the door panel stiffener, welding the head, and unloading the elevator door panel;

[0021] (4) The loading transporter flexibly adjusts the angles of the suction cup frame and the industrial fixed suction cup through the first horizontal rotating shaft and the first vertical rotating shaft, 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 fixator according to the use requirements, and through the automatic fixation of the door panel fixator, the automatic loading function of the elevator door panel is realized;

[0022] (5) The stiffener transporter combines the two processes of transporting the door panel stiffener and welding, reducing the transfer time of the elevator door panel and improving the production efficiency. The angles of the fixture frame and the stiffener fixture are flexibly adjusted through the second horizontal rotating shaft and the second vertical rotating shaft. The door panel stiffener is moved from the stiffener placement table to the elevator door panel through the stiffener fixture. At this time, the synchronous motor starts, and drives the coordination gear to rotate synchronously through the synchronous gear, so that the stiffener welding head moves downward to automatically weld different positions of the door panel stiffener;

[0023] (6) The device flexibly adjusts the position of the adjustable welding head through a laser welding device. The vertical motor can drive the vertical lead screw to rotate, so that the horizontal slider slides along the vertical lead screw, thereby achieving the adjustment effect of the vertical position of the horizontal chute. At the same time, the horizontal motor can drive the horizontal lead screw to rotate, so that the welding head slider slides along the horizontal lead screw, thereby achieving the adjustment effect of the horizontal position of the adjustable welding head. The position of the adjustable welding head is flexibly adjusted according to production requirements, and the sealing head position of elevator door panels of different sizes is laser welded to further enhance the overall strength of the elevator door panels. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of a laser welding device for elevator door panels provided by the present invention;

[0025] Figure 2 is a top view of a laser welding device for elevator door panels provided by the present invention;

[0026] Figure 3 is Figure 2 a cross-sectional view taken along the A-A direction in

[0027] Figure 4 is Figure 3 an enlarged schematic view of part B in

[0028] Figure 5 is a schematic connection structure diagram of a rotating support cylinder, a main lifting groove, a main lifting lead screw, a main horizontal groove, a main horizontal lead screw and a door panel fixer;

[0029] Figure 6 is an exploded structure diagram of the door panel fixer;

[0030] Figure 7 is a schematic structure diagram of a main telescopic rod, a loading transporter, a stiffener transporter, a laser welding device and an unloading transporter;

[0031] Figure 8 is a schematic structure diagram of the loading transporter;

[0032] Figure 9 is a first schematic structure diagram of the stiffener transporter;

[0033] Figure 10 is a second schematic structure diagram of the stiffener transporter;

[0034] Figure 11 is a first schematic structure diagram of the laser welding device;

[0035] Figure 12 is a second schematic structure diagram of the laser welding device;

[0036] Figure 13Schematic connection structure diagram of the main moving groove, main horizontal lead screw, main horizontal motor, main sliding block and main telescopic rod.

[0037] 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 lead screw, 132. Main horizontal motor, 14. Feeding conveyor belt, 15. Reinforcement placement table, 16. Discharging table, 2. Rotating support cylinder, 21. Main lifting groove, 22. Main lifting lead screw, 221. Main lifting motor, 23. Main transverse groove, 24. Main transverse lead screw, 241. Main transverse motor, 25. Rotating teeth, 3. Door panel fixer, 31. Upper and lower fixing parts, 311. Main lifting block, 3111. First connecting arm, 312. Support plate, 313. Limit lead screw, 3131. Limit motor, 314. Limit slider, 3141. Connecting piece, 315. First limit block, 316. Limit rod, 32. Side fixing parts, 321. Transverse slider, 322. Second connecting arm, 323. Second limit block, 4. Main telescopic rod, 41. Feeding transporter, 411. First horizontal rotating shaft, 412. First vertical rotating shaft, 413. First push rod, 414. Suction cup holder, 415. Industrial fixed suction cup, 42. Reinforcement transporter, 421. Second horizontal rotating shaft, 422. Second vertical rotating shaft, 423. Second push rod, 424. Support block, 4241. Synchronous motor, 4242. Synchronous gear, 425. Clamp holder, 4251. Reinforcement clamp, 426. Lead screw holder, 4261. Side lead screw, 4262. Coordination gear, 427. Welding slider, 428. Reinforcement welding head, 43. Laser welding device, 431. Chute connection block, 432. Vertical chute, 4321. Vertical lead screw, 4322. Vertical motor, 433. Horizontal chute, 4331. Horizontal lead screw, 4332. Horizontal motor, 4333. Horizontal slider, 434. Adjustable welding head, 4341. Welding head slider, 44. Discharging transporter, 45. Main sliding block, 5. Main controller, 51. Control panel, 6. Elevator door panel, 7. Door panel reinforcement. Detailed implementation mode

[0038] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments. Parts of the technical features or connection relationships of the present invention that are not described in detail are all prior arts adopted.

[0039] The following further describes the present invention in detail with reference to the accompanying drawings.

[0040] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7, Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown in Figure 11 , Figure 12 , Figure 13 , a laser welding device for elevator door panels provided by the present invention includes a base 1, a rotating support cylinder 2, and a door panel fixator 3. 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. The door panel fixator 3 is movably arranged in an annular 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 at the upper end of the main controller 5.

[0041] Support columns 12 are annularly arrayed on the edge of the upper wall of the base 1, and the support columns 12 are respectively arranged between adjacent door panel fixators 3. Main moving grooves 13 are respectively connected between the upper ends of the support columns 12 and the upper end of the central fixing column 11. Main telescopic rods 4 are respectively slidably arranged below the main moving grooves 13 along the extending direction of the main moving grooves 13. A feeding conveyor belt 14, a reinforcing rib placing table 15, and a blanking table 16 are respectively fixedly provided on the upper wall of the base 1; a main rotating motor 111 is provided at the upper end inside the central fixing column 11, and a main rotating gear 112 is provided at the output end of the main rotating motor 111. A main horizontal lead screw 131 is rotatably arranged in the main moving groove 13, and a main horizontal motor 132 is provided at the end of the main horizontal lead screw 131. The output end of the main horizontal motor 132 is connected to the end of the main horizontal lead screw 131.

[0042] Main lifting grooves 21 are annularly arrayed 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 of the side wall of the main lifting groove 21. The main transverse groove 23 is perpendicular to the main lifting groove 21. A main lifting lead screw 22 is rotatably arranged in the main lifting groove 21, and a main transverse lead screw 24 is rotatably arranged in the main transverse groove 23. A main lifting motor 221 is provided at the upper end of the main lifting lead screw 22, and the output end of the main lifting motor 221 is connected to the main lifting lead screw 22. A main transverse motor 241 is provided at the end of the main transverse lead screw 24, and the output end of the main transverse motor 241 is connected to the main transverse lead screw 24. Rotating teeth 25 are annularly arrayed on the inner wall of the upper end of the rotating support cylinder 2, and the main rotating gear 112 is meshed with the rotating teeth 25.

[0043] The door panel fixer 3 includes upper and lower fixing members 31 and side fixing members 32. The upper and lower fixing members 31 are symmetrically and slidably arranged on the main lifting groove 21 up and down. The side fixing members 32 are symmetrically and slidably arranged on the main transverse groove 23 along the extending direction of the main transverse groove 23. The upper and lower fixing members 31 include main lifting blocks 311, support plates 312, limit lead screws 313, limit sliders 314, first limit blocks 315 and limit rods 316. The main lifting blocks 311 are symmetrically sleeved on the main lifting lead screw 22 up and down. First connecting arms 3111 are respectively fixedly arranged on the side walls of the main lifting blocks 311. The support plates 312 are respectively fixedly arranged at the ends of the first connecting arms 3111. The limit lead screws 313 are respectively rotatably arranged on the opposite sides of the support plates 312. The limit sliders 314 are symmetrically slidably sleeved on the limit lead screws 313. Connecting pieces 3141 are fixedly arranged on the side walls of the limit sliders 314. The first limit blocks 315 are fixedly arranged at the ends of the connecting pieces 3141. The limit rods 316 are symmetrically fixedly arranged at both ends of the support plates 312. The side fixing members 32 include transverse sliders 321, second connecting arms 322 and second limit blocks 323. The transverse sliders 321 are symmetrically slidably sleeved on the main transverse lead screw 24. The second connecting arms 322 are respectively fixedly arranged on the side walls of the transverse sliders 321. The second limit blocks 323 are respectively fixedly arranged at the ends of the second connecting arms 322;

[0044] A limit motor 3131 is arranged at the end of the limit lead screw 313, and the output end of the limit motor 3131 is connected to the end of the limit lead screw 313.

[0045] The main lifting lead screw 22, the main transverse lead screw 24 and the limit lead screw 313 are respectively double-threaded lead screws. The main lifting blocks 311, the transverse sliders 321 and the limit sliders 314 are respectively connected to the main lifting lead screw 22, the main transverse lead screw 24 and the limit lead screw 313, and the thread directions are opposite. The length direction of the limit rod 316 is parallel to the moving direction of the first limit block 315. An elevator door panel 6 is clamped on the door panel fixer 3. The limit rods 316 are respectively in contact with the upper and lower walls of the elevator door panel 6. The first limit blocks 315 are clamped on the upper and lower end side walls of the elevator door panel 6. The second limit blocks 323 are clamped in the middle of the side wall of the elevator door panel 6.

[0046] The lower output ends of the main telescopic rod 4 arranged counterclockwise are respectively connected with a loading transporter 41, a reinforcing rib transporter 42, a laser welding device 43 and an unloading transporter 44. The loading conveyor belt 14 is arranged opposite to the loading transporter 41, the reinforcing rib placement table 15 is arranged opposite to the reinforcing rib transporter 42, and the unloading table 16 is arranged opposite to the unloading transporter 44. The upper ends of the main telescopic rod 4 are respectively fixedly provided with main sliding blocks 45. The main sliding blocks 45 are sleeved on the main horizontal lead screw 131, and the main sliding blocks 45 are respectively in threaded connection with the main horizontal lead screw 131. The loading transporter 41 includes a first horizontal rotating shaft 411, a first vertical rotating shaft 412, a first push rod 413, a suction cup holder 414 and industrial fixed suction cups 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 holder 414 is arranged at the output end of the first push rod 413, the industrial fixed suction cups 415 are fixedly arranged in a rectangular array on the side wall of the suction cup holder 414, and the first horizontal rotating shaft 411 and the first vertical rotating shaft 412 respectively adopt electric rotating shafts.

[0047] The reinforcing rib transporter 42 includes a second horizontal rotating shaft 421, a second vertical rotating shaft 422, a second push rod 423, a support block 424, a fixture holder 425, a lead screw holder 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, the support block 424 is arranged at the output end of the second push rod 423, the fixture holder 425 is fixedly arranged on the side wall of the support block 424 away from the second push rod 423, the lead screw holders 426 are symmetrically fixedly arranged on both sides of the support block 424, side lead screws 4261 are respectively rotatably arranged on the lead screw holders 426, the welding sliders 427 are symmetrically sleeved on the side lead screws 4261, the welding sliders 427 are in threaded connection with the side lead screws 4261, and the reinforcing rib welding heads 428 are respectively fixedly arranged on the side walls of the welding sliders 427;

[0048] Reinforcing rib clamps 4251 are respectively arranged at the upper and lower ends of the side wall of the fixture holder 425. The reinforcing rib clamps 4251 adopt electric clamps. A door panel reinforcing rib 7 is clamped on the reinforcing rib clamps 4251. The reinforcing rib welding heads 428 are respectively symmetrically arranged on both sides of the door panel reinforcing rib 7. A synchronous motor 4241 is arranged on the lower wall of the support block 424. A synchronous gear 4242 is arranged at the output end of the synchronous motor 4241. Coordination gears 4262 are coaxially fixedly arranged at the lower ends of the side lead screws 4261. The coordination gears 4262 are respectively rotatably arranged on the lower walls of the lead screw holders 426. 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 respectively adopt electric rotating shafts.

[0049] The laser welding device 43 includes a chute connecting block 431, a vertical chute 432, a horizontal chute 433, and an adjustable welding head 434. The chute connecting block 431 is fixedly arranged at the lower output end of the main telescopic rod 4. The vertical chute 432 is fixedly arranged on the chute connecting block 431. A vertical lead screw 4321 is rotatably arranged in the vertical chute 432. A horizontal slider 4333 is slidably sleeved on the vertical lead screw 4321. The horizontal slider 4333 is threadedly connected to the vertical lead screw 4321. The horizontal chute 433 is fixedly arranged on the horizontal slider 4333. A horizontal lead screw 4331 is rotatably arranged in the horizontal chute 433. A welding head slider 4341 is slidably sleeved on the horizontal lead screw 4331. The adjustable welding head 434 is fixedly arranged on the side wall of the welding head slider 4341;

[0050] A vertical motor 4322 is arranged at the end of the vertical lead screw 4321. The output end of the vertical motor 4322 is connected to the end of the vertical lead screw 4321. A horizontal motor 4332 is arranged at the end of the horizontal lead screw 4331. The output end of the horizontal motor 4332 is connected to the end of the horizontal lead screw 4331;

[0051] The structure of the blanking transporter 44 is the same as that of the loading transporter 41.

[0052] The main rotation 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 rotation shaft 411, the first vertical rotation shaft 412, the first push rod 413, the industrial fixed suction cup 415, the second horizontal rotation shaft 421, the second vertical rotation shaft 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.

[0053] Working principle and working process:

[0054] This device transforms the original linear welding production line structure of elevator door panels into a circular structure. The main rotation motor 111 in the central fixed column 11 can drive the main rotation gear 112 to rotate. The main rotation gear 112 meshes with the rotation teeth 25 arranged on the inner wall of the rotation support cylinder 2, realizing the rotation of the rotation support cylinder 2, and then realizing the rotation of the door panel fixer 3. The elevator door panel 6 rotates around the central fixed column 11 to different workstations under the fixation of the door panel fixer 3, so as to perform corresponding welding processes. The integration of the equipment is improved, the occupied space of the equipment is saved, and the production efficiency is improved;

[0055] The main telescopic rod 4 can move along the main moving groove 13 respectively, so that the loading handler 41, the stiffener handler 42, the laser welding device 43 and the unloading handler 44 can approach or move away from the door panel fixer 3. At the same time, the main telescopic rod 4 can adjust the height positions of the loading handler 41, the stiffener handler 42, the laser welding device 43 and the unloading handler 44 according to the actual usage requirements. After the loading process is completed, the main controller 5 controls the main rotating motor 111 to start according to the preset program. The main rotating motor 111 drives the main rotating gear 112 to rotate, and then makes the rotating support cylinder 2 and the door panel fixer 3 rotate 90 degrees to reach the next working station, so as to sequentially complete the processes of loading the elevator door panel 6, welding the door panel stiffener 7, welding the head, and unloading the elevator door panel 6, etc.

[0056] When this device is in use, the loading conveyor belt 14 can continuously convey the elevator door panel 6 to be welded to the position of the loading handler 41. The loading conveyor belt 14 adopts the existing conveyor belt technology, and its specific structure and principle will not be introduced in detail here; the user operates each component mechanism of this device through the control panel 51, and issues instructions to each component mechanism of this device through the main controller 5 to realize the automatic operation of the device.

[0057] The loading handler 41 flexibly adjusts the angles of the suction cup frame 414 and the industrial fixed suction cup 415 through the first horizontal rotating shaft 411 and the first vertical rotating shaft 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 the usage requirements. After being automatically fixed by the door panel fixer 3, the automatic loading effect of the elevator door panel 6 is realized.

[0058] After the loading process is completed, the elevator door panel 6 fixed on the door panel fixer 3 automatically rotates 90 degrees to reach the next working station and starts the welding process of the door panel stiffener 7. The stiffener handler 42 combines the two processes of handling the door panel stiffener 7 and welding, reducing the transfer time of the elevator door panel 6 and improving the production efficiency. The angles of the fixture frame 425 and the stiffener fixture 4251 are flexibly adjusted through the second horizontal rotating shaft 421 and the second vertical rotating shaft 422. The door panel stiffener 7 is moved from the stiffener placement table 15 to the elevator door panel 6 by the stiffener fixture 4251. At this time, the synchronous motor 4241 starts, and drives the coordination gear 4262 to rotate synchronously through the synchronous gear 4242, so that the symmetrically arranged stiffener welding heads 428 move downward from top to bottom to automatically weld different positions of the door panel stiffener 7.

[0059] After the welding of the door panel reinforcing rib 7 is completed, the door panel fixator 3 drives the elevator door panel 6 to rotate 90 degrees again, reaching the next working station, and starts the laser welding process at the sealing 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 lead screw 4321 to rotate, so that the horizontal slider 4333 slides along the vertical lead screw 4321, thereby achieving the adjustment effect of the vertical position of the horizontal chute 433. At the same time, the horizontal motor 4332 can drive the horizontal lead screw 4331 to rotate, so that the welding head slider 4341 slides along the horizontal lead screw 4331, thereby achieving 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 sealing head position of the elevator door panel 6 with different sizes is laser welded to further strengthen the overall strength of the elevator door panel 6.

[0060] After the above welding process, the door panel fixator 3 continues to drive the elevator door panel 6 to rotate 90 degrees, reaching the last working station. At this time, the blanking handler 44 removes the elevator door panel 6 that has completed welding from the door panel fixator 3 and stacks it on the blanking table 16 for subsequent use.

[0061] Mechanical structures such as the industrial fixed suction cup 415, the reinforcing rib clamp 4251, the reinforcing rib welding head 428, and the adjustable welding head 434 in this device are connected to the main controller 5 through wires. The method of controlling the mechanical structures through wires belongs to well-known technology and will not be elaborated here. The wires are not shown in the drawings either.

[0062] The above is the overall working process of the present invention. Just repeat these steps the next time it is used.

[0063] The present invention and its implementation manners have been described above. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within 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); 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).

2. The laser welding device for elevator door panels according to claim 1, 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).

3. The laser welding device for elevator door panels according to claim 2, 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).

4. The laser welding device for elevator door panels according to claim 3, 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).

5. The laser welding device for elevator door panels according to claim 4, 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).

6. The laser welding device for elevator door panels according to claim 5, 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).

7. The laser welding device for elevator door panels according to claim 6, 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).

8. The laser welding device for elevator door panels according to claim 7, 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).

9. The laser welding device for elevator door panels according to claim 8, 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.

Images