A multi-station laser cutting device for metal profiles

Abstract

The present invention relates to the technical field of laser cutting processing of metal profiles, and particularly relates to a multi-station laser cutting device for metal profiles, including a central rod, a connecting frame, a driving mechanism, a clamping mechanism, a positioning mechanism, a cutting mechanism, a collection container and an arc-shaped plate. In the present invention, three clamping mechanisms are arranged on the connecting frame, and each clamping mechanism can clamp two profiles. At the same time, three positioning mechanisms corresponding to the clamping mechanisms one by one are arranged in the present invention. The two cooperate with each other to clamp and position two profiles at the same time, and cooperate with the cutting mechanism to synchronously and symmetrically cut two profiles at the same time, so as to facilitate the splicing at the cut. In the present invention, the connecting frame intermittently rotates 120 degrees driven by the driving mechanism. During the intermittent period when the connecting frame is stationary, the workers in front of the corresponding clamping mechanisms respectively complete the feeding and discharging operations. This multi-station setting method enables the three processes of feeding, processing and discharging to be carried out simultaneously, thereby improving the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting processing of metal profiles, and particularly relates to a multi-station laser cutting device for metal profiles. Background Art

[0002] When producing rectangular door and window frames (composed of two sets of symmetric profiles, and chamfers need to be cut at both ends of each profile), in order to make the splicing of the door and window frames more beautiful and facilitate installation, generally, it is necessary to cut the edges and corners of the profiles that make up the door and window frames. Common cutting methods include manual cutting, cutting with power tools, laser equipment cutting, etc.

[0003] Among them, the cutting method using laser equipment has relatively high processing accuracy, its cutting surface is relatively smooth and is convenient for splicing. The current process of producing door frames by laser cutting equipment is as follows: Each profile is manually placed on the laser cutting equipment in turn. Before cutting, the laser cutting equipment first positions the profile. After positioning is completed, the two ends of the profile are cut in turn by the laser cutting equipment. After cutting is completed, the profile is taken down, and a new profile is placed. Repeating the above process completes the cutting of multiple profiles.

[0004] The above cutting process still has the following problems: Since the processing process of the laser cutting equipment for each profile is relatively independent, there may be certain errors in the chamfers cut out, and there may be gaps when the cut surfaces of two profiles are joined later, which will affect the strength of the welded frame; at the same time, when cutting profiles using this processing method, the above feeding, positioning, cutting, and discharging need to be carried out separately, and the next process cannot be carried out until the previous process is completed, which will reduce the processing efficiency. Summary of the Invention

[0005] In order to solve the above problems, the present invention adopts the following technical solution. A multi-station laser cutting device for metal profiles includes a base, a central rod is fixedly connected to the base, a connecting frame is rotatably sleeved on the central rod, a driving mechanism is connected to the center of the connecting frame, and three clamping mechanisms are evenly connected to the edge of the connecting frame in the circumferential direction.

[0006] The clamping mechanism includes a T-shaped plate. Two rectangular plates are symmetrically and fixedly connected to the lower end face of the T-shaped plate. A slide bar is fixedly connected between the two rectangular plates. The slide bar is slidably and penetratingly connected to the connecting frame. A return spring is sleeved on the slide bar. The return spring is connected between the connecting frame and the rectangular plate on the side close to the central rod. Under the action of the return spring, during the rotation of the T-shaped plate with the connecting frame, except for the position directly above the arc-shaped plate, the T-shaped plate approaches the central rod. A semi-circular block that cooperates with the arc-shaped plate is fixedly connected to the end face of the rectangular plate on the side away from the central rod and close to the central rod. Two vertical plates are symmetrically and fixedly connected to the upper end face of the T-shaped plate. An intermittent rotation assembly is connected between the two vertical plates. Two symmetric clamping pipe assemblies are connected to the end face of the vertical plate away from the central rod.

[0007] A positioning mechanism is connected to the central rod above the driving mechanism. A cutting mechanism for cutting profiles is connected to the top end of the central rod. A collection container is fixedly sleeved on the central rod below the connecting frame. An arc-shaped plate is fixedly connected to the outer side wall of the collection container.

[0008] Preferably, the driving mechanism includes a central gear. The central gear is fixedly connected to the center of the connecting frame. The central gear is rotatably sleeved on the central rod. A first incomplete gear meshes with the edge of the central gear. A circular plate is fixedly sleeved on the central rod above the central gear. The first incomplete gear is rotatably connected below the circular plate. A driving motor is fixedly connected to the upper end of the circular plate. The driving shaft of the driving motor is fixedly connected to the first incomplete gear.

[0009] Preferably, the clamping pipe assembly includes a rotating plate. The rotating plate is rotatably connected to the end face of the vertical plate away from the central rod and corresponds to the position of the reversing gear. A cylindrical outer shell is fixedly connected to the end face of the rotating plate away from the central rod. Two mounting rods are symmetrically and fixedly connected to the inner wall of the cylindrical outer shell. The two mounting rods are parallel to each other and form an angle of forty-five degrees with the upper end face of the T-shaped plate. The mounting rods in the two cylindrical outer shells are symmetrically arranged. Tooth plates are slidably sleeved on the two mounting rods in the same cylindrical outer shell. A linkage gear meshes between the two tooth plates. One end of any one of the tooth plates is fixedly connected to a first electric slider. The first electric slider is slidably sleeved on the mounting rod. A square outer shell is fixedly connected to the front end of the cylindrical outer shell. A circular groove is commonly penetrated and opened on the rotating plate, the cylindrical outer shell, the linkage gear, and the square outer shell. A clamping module is connected between the cylindrical outer shell and the square outer shell.

[0010] Preferably, the clamping module includes linkage rods. Linkage rods are fixedly connected to the front end faces of the toothed plates. Chutes with the same length direction as that of the toothed plates are formed on the side walls of the cylindrical housing and the square housing. The linkage rods are slidably connected in the chutes and are symmetrically distributed with the axis of the circular groove as the center of symmetry. Two right-angle brackets are symmetrically and fixedly connected to the rod body of the linkage rod near the lower part and located inside the square housing. A right-angle bracket is also fixedly connected to the upper linkage rod. The right-angle bracket on the upper linkage rod is staggeredly distributed with the two right-angle brackets on the lower linkage rod and is located between them. Clamping rollers are rotatably connected to the end faces of the horizontal and vertical sections of the right-angle bracket close to the axis of the circular groove.

[0011] Preferably, the intermittent rotation assembly includes reversing gears. Two symmetrically arranged reversing gears are rotatably connected between two vertical plates. The two reversing gears are meshed with each other. A second incomplete gear is meshed with any one of the reversing gears. The second incomplete gear is rotatably connected between the two vertical plates. An actuating motor for driving its rotation is connected to the second incomplete gear. The actuating motor is fixedly connected to the vertical plate away from the central rod. A through groove is formed through the front and back of the reversing gear. A connecting pipe module is connected in the through groove.

[0012] Preferably, the connecting pipe module includes wedge blocks. Wedge blocks are slidably embedded in the through groove along the circumferential direction. The wedge blocks are connected to the reversing gear through abutting springs. An inclined surface is formed on the end face of the wedge block away from the central rod.

[0013] Preferably, the positioning mechanism includes a mounting bracket. Two mounting brackets are fixedly sleeved on the central rod above and below the connecting bracket. An annular plate is rotatably connected between the two mounting brackets. Three inner support components corresponding to the clamping mechanism are connected to the outer side wall of the annular plate along the circumferential direction. An annular guide plate is fixedly connected to the outside of the lower mounting bracket.

[0014] Preferably, the inner support component includes two connecting pieces fixed to the outer wall of the annular plate. The end of the connecting piece away from the central rod is rotatably connected to a hinged plate. A ball seat is fixedly connected to the lower end face of the hinged plate through a round rod. A positioning plate is fixedly connected to the end of the hinged plate away from the connecting piece. A connecting rod is rotatably connected to the end of the positioning plate away from the connecting piece through a damper. An abutting module for fixing the profile is connected to the end of the connecting rod away from the connecting piece.

[0015] Preferably, the abutting module includes a rectangular seat fixedly connected to the end of the connecting rod away from the connecting piece. Trapezoidal blocks are slidably embedded on the four end faces of the rectangular seat. The trapezoidal blocks are connected to the rectangular seat by connecting springs. A first rope is slidably passed through the connecting rod and the hinge plate together. One end of the first rope close to the central rod is fixedly connected to the connecting piece, and the other end of the first rope away from the central rod is fixedly connected to four second ropes that cooperate with the four trapezoidal blocks, and the corresponding second ropes and trapezoidal blocks are fixedly connected to each other.

[0016] Preferably, the cutting mechanism includes an electric lifting slide. The upper end of the central rod is slidably connected to the electric lifting slide. The front end of the electric lifting slide is fixedly connected to an electric push rod. The movable section of the electric push rod is fixedly connected to a mounting seat. A guide frame is fixedly and penetratingly connected to the mounting seat. Slide connecting seats are symmetrically and slidably connected to both sides of the mounting seat on the guide frame. The lower end of the slide connecting seat is fixedly connected to a laser cutting machine for cutting profiles. A moving component is jointly connected to the upper ends of the slide connecting seat and the rectangular seat. The moving component includes a second electric slider. The second electric slider is slidably connected to the upper end of the mounting seat along the telescopic direction of the electric push rod. The second electric slider is hinged to both slide connecting seats through connecting plates, and the two connecting plates are symmetrical left and right.

[0017] The beneficial effects of the present invention are as follows: 1. There are three clamping mechanisms provided on the connecting frame of the present invention. Each clamping mechanism can clamp two profiles. At the same time, three positioning mechanisms corresponding to the clamping mechanisms one by one are provided in the present invention. The two cooperate with each other to clamp and position two profiles at the same time, and cooperate with the cutting mechanism to cut two profiles at the same time. Since the laser cutting machine in the cutting mechanism moves synchronously and symmetrically under the drive of the moving component, the cut surfaces of the two profiles are guaranteed to be exactly the same, which is convenient for the splicing of the two profiles and can also improve the processing efficiency.

[0018] 2. The connecting frame of the present invention rotates intermittently by 120 degrees under the drive of the driving mechanism. During the intermittent period when the connecting frame is stationary, the staff in front of the left-front clamping mechanism places profiles on the clamping mechanism. The placed profiles are transferred under the cutting mechanism after the next rotation of the connecting frame and are cut by the cutting mechanism. Then, as the connecting frame rotates again, the cut profiles will continue to be transferred counterclockwise, and after reaching the right-rear, the corresponding staff will perform blanking. This multi-station setting method enables the three processes of loading, processing, and unloading to be carried out simultaneously, further improving the processing efficiency. Description of the Drawings

[0019] The present invention will be further described below with reference to the drawings and examples.

[0020] Figure 1 It is a schematic diagram of the state change of the profile processing before and after the present invention.

[0021] Figure 2 It is a three-dimensional structure schematic diagram of the first perspective of a multi-station laser cutting device for metal profiles according to the present invention.

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the second perspective of a multi-station laser cutting device for metal profiles according to the present invention.

[0023] Figure 4 is the present invention Figure 2 top view.

[0024] Figure 5 It is a three-dimensional structure schematic diagram of the positioning mechanism according to the present invention.

[0025] Figure 6 is the present invention Figure 5 partial enlarged view at position A in.

[0026] Figure 7 It is a three-dimensional structure schematic diagram of the clamping mechanism according to the present invention.

[0027] Figure 8 It is a three-dimensional structure schematic diagram of the intermittent rotation assembly according to the present invention.

[0028] Figure 9 It is a three-dimensional structure schematic diagram of the cutting mechanism according to the present invention.

[0029] Figure 10 It is a plan sectional view of the abutting module according to the present invention.

[0030] Figure 11 It is a structural diagram of the annular guide plate according to the present invention.

[0031] In the figure: 1. Central rod; 2. Connecting frame; 3. Driving mechanism; 31. Central gear; 32. First incomplete gear; 33. Circular plate; 34. Driving motor; 4. Clamping mechanism; 41. T-shaped plate; 42. Slide bar; 43. Return spring; 44. Vertical plate; 45. Intermittent rotation assembly; 451. Reversing gear; 452. Second incomplete gear; 453. Connecting pipe module; 4531. Wedge block; 4532. Abutting spring; 46. Pipe clamping assembly; 461. Rotating plate; 462. Cylindrical housing; 463. Mounting rod; 464. Tooth plate; 465. Linking gear; 466. First electric slider; 467. Square housing; 468. Clamping module; 4681. Linking rod; 4682. Right-angle frame; 4683. Clamping roller; 5. Positioning mechanism; 51. Mounting frame; 52. Annular plate; 53. Inner support assembly; 531. Connecting piece; 532. Hinged plate; 533. Ball seat; 534. Positioning plate; 535. Connecting rod; 536. Abutting module; 5361. Rectangular seat; 5362. Trapezoidal block; 5363. Connecting spring; 5364. First rope; 5365. Second rope; 54. Annular guide plate; 6. Cutting mechanism; 61. Electric lifting slide; 62. Electric push rod; 63. Mounting seat; 64. Guide frame; 65. Sliding connection seat; 66. Laser cutting machine; 67. Moving assembly; 671. Second electric slider; 672. Connecting plate; 7. Collection container; 8. Arc plate; 81. Semi-circular block. Specific embodiments

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the invention can be implemented in many different ways defined and covered by the claims.

[0033] Refer to Figure 2 and Figure 3 As shown in FIGS. and, a multi-station laser cutting device for metal profiles includes a base, on which a central rod 1 is fixedly connected. A connecting frame 2 is rotatably sleeved on the central rod 1. A driving mechanism 3 is connected to the center of the connecting frame 2. Three clamping mechanisms 4 are evenly connected to the edge of the connecting frame 2 in the circumferential direction. A positioning mechanism 5 is connected above the driving mechanism 3 on the central rod 1. A cutting mechanism 6 for cutting profiles is connected to the top of the central rod 1. A collection container 7 is fixedly sleeved below the connecting frame 2 on the central rod 1.

[0034] Refer to Figures 2 - 4, the driving mechanism 3 includes a central gear 31. A central gear 31 is fixedly connected to the center of the connecting frame 2. The central gear 31 is rotatably sleeved on the central rod 1. A first incomplete gear 32 meshes with the edge of the central gear 31. A circular plate 33 is fixedly sleeved on the central rod 1 above the central gear 31. The first incomplete gear 32 is rotatably connected below the circular plate 33. A driving motor 34 is fixedly connected to the upper end of the circular plate 33. The driving shaft of the driving motor 34 is fixedly connected to the first incomplete gear 32.

[0035] During specific operation, refer to Figure 4 the positions of each clamping mechanism 4 therein. The position of one clamping mechanism 4 is the loading area M. The position of the clamping mechanism 4 immediately following the loading area M in the counterclockwise direction is the processing area N. The position of the clamping mechanism 4 immediately following the loading area M in the clockwise direction is the unloading area P. An arc-shaped plate 8 is fixedly connected to the outer side wall of the collection container 7 and below the unloading area P.

[0036] The worker places two profiles to be processed in the clamping mechanism 4 in the loading area M and aligns their ends through the corresponding positioning mechanism 5. Then, as the driving motor 34 operates to drive the first incomplete gear 32 to rotate synchronously, the central gear 31 and the connecting frame 2 are driven to rotate counterclockwise by 120 degrees synchronously, so that the clamping mechanism 4 originally located in the loading area M together with the profile thereon is moved to the processing area N.

[0037] After the profile reaches the processing area N, the cutting mechanism 6 first descends to a certain height and then moves along a set path on the surface of the profile. At the same time, the clamping mechanism 4 drives the profile to rotate intermittently by 90 degrees while clamping the profile, so as to facilitate the cutting mechanism 6 to cut each outer surface of the profile in turn (the state change of the profile before and after cutting is as shown in Figure 1 ). After the cutting is completed, the first incomplete gear 32 drives the central gear 31 and the connecting frame 2 to continue rotating counterclockwise by 120 degrees, and then transfers the processed profile to the unloading area P. During this process, the clamping mechanism 4 clamping the profile will move a certain distance outward from the center of the connecting frame 2 under the action of the arc-shaped plate 8, so that the main part of the profile is separated from the cut part. The cut part is separated from the positioning mechanism 5 under its own gravity and falls into the collection container 7. After the above steps are completed, the worker in the unloading area P takes out the profile from the clamping mechanism 4, and the processing of the profile is completed.

[0038] Refer to Figure 3 and Figure 7, the clamping mechanism 4 includes a T-shaped plate 41. Two rectangular plates are symmetrically and fixedly connected to the lower end face of the T-shaped plate 41. A slide bar 42 is fixedly connected between the two rectangular plates. The slide bar 42 is slidably and penetratingly connected to the connecting frame 2. A return spring 43 is sleeved on the slide bar 42. The return spring 43 is connected between the connecting frame 2 and the rectangular plate on the side close to the central rod 1. Under the action of the return spring 43, during the rotation of the T-shaped plate 41 with the connecting frame 2, except for the position directly above the arc-shaped plate 8, the T-shaped plate 41 approaches the central rod 1. A semi-circular block 81 that cooperates with the arc-shaped plate 8 is fixedly connected to the end face of the rectangular plate on the side away from the central rod 1 and close to the central rod 1. Two vertical plates 44 are symmetrically and fixedly connected to the upper end face of the T-shaped plate 41. An intermittent rotation assembly 45 is connected between the two vertical plates 44. Two symmetric clamping tube assemblies 46 are connected to the end faces of the vertical plates 44 away from the central rod 1.

[0039] Refer to Figure 7 , the clamping tube assembly 46 includes a rotating plate 461. The rotating plate 461 is rotatably connected to the end face of the vertical plate 44 away from the central rod 1 and corresponds to the position of the reversing gear 451. A cylindrical outer shell 462 is fixedly connected to the end face of the rotating plate 461 away from the central rod 1. Two mounting rods 463 are symmetrically and fixedly connected to the inner wall of the cylindrical outer shell 462. The two mounting rods 463 are parallel to each other and form an angle of forty-five degrees with the upper end face of the T-shaped plate 41. The mounting rods 463 in the two cylindrical outer shells 462 are symmetrically arranged. Tooth plates 464 are slidably sleeved on both of the mounting rods 463 in the same cylindrical outer shell 462. A linkage gear 465 is meshed between the two tooth plates 464. One end of any one of the tooth plates 464 is fixedly connected to a first electric slider 466. The first electric slider 466 is slidably sleeved on the mounting rod 463. A square outer shell 467 is fixedly connected to the front end of the cylindrical outer shell 462. A circular groove is commonly formed through the rotating plate 461, the cylindrical outer shell 462, the linkage gear 465, and the square outer shell 467. A clamping module 468 is connected between the cylindrical outer shell 462 and the square outer shell 467.

[0040] Refer to Figure 7, the clamping module 468 includes linkage rods 4681. Linkage rods 4681 are fixedly connected to the front end faces of the toothed plates 464. Chutes with the same length direction as the toothed plates 464 are provided on the side walls of the cylindrical housing 462 and the square housing 467. The linkage rods 4681 are slidably connected in the chutes and are symmetrically distributed with the axis of the circular groove as the center of symmetry. Two right-angle frames 4682 are symmetrically and fixedly connected to the rod bodies of the linkage rods 4681 that are below and located within the square housing 467. Right-angle frames 4682 are also fixedly connected to the upper linkage rods 4681. The right-angle frames 4682 on the upper linkage rods 4681 are staggeredly distributed with the two right-angle frames 4682 on the lower linkage rods 4681 and are located between them. Clamping rollers 4683 are rotatably connected to the end faces of the horizontal and vertical sections of the right-angle frames 4682 that are close to the axis of the circular groove.

[0041] Refer to Figure 2 , Figure 5 and Figure 7 , during specific operation, when no profile is inserted, the right-angle frames 4682 on the two linkage rods 4681 of the clamping mechanism 4 in the loading area M are far away from each other. After the staff in the loading area M inserts the two steel pipes to be cut into the circular groove in sequence, the toothed plate 464 on the first electric slider 466 is pushed to move along the mounting rod 463, thereby driving the other toothed plate 464 to move synchronously. When the two toothed plates 464 move, they drive the two linkage rods 4681 to approach each other. Further, the two right-angle frames 4682 also approach each other, and then the profile can be clamped by the clamping rollers 4683. After the profile is clamped by the clamping rollers 4683, the profile is exactly located at the center of the circular groove. At this time, the profile is manually pushed to continue moving towards the position of the central rod 1, so that the profile can be docked with the positioning mechanism 5, and then the profile can be positioned and further clamped by the positioning mechanism 5.

[0042] Refer to Figure 3 and Figure 8 , the intermittent rotation assembly 45 includes reversing gears 4***. Two reversing gears 451 arranged symmetrically are rotatably connected between the two vertical plates 44. The two reversing gears 451 mesh with each other. A second incomplete gear 452 meshes with any one of the reversing gears 451. The second incomplete gear 452 is rotatably connected between the two vertical plates 44. An actuating motor for driving its rotation is connected to the second incomplete gear 452. The actuating motor is fixedly connected to the vertical plate 44 away from the central rod 1. A through groove is formed through the front and back of the reversing gear 451, and a connecting pipe module 453 is connected in the through groove.

[0043] Refer to Figure 8, the connecting pipe module 453 includes a wedge block 4531 which is slidably embedded in the through groove along the circumferential direction. The wedge block 4531 is connected to the reversing gear 451 by an abutting spring 4532. An inclined surface is provided on the end surface of the wedge block 4531 away from the central rod 1.

[0044] Refer to Figure 3 、 Figure 7 and Figure 8 , during specific operation, after the profile is clamped and fixed at the exact center of the circular groove by the clamping roller 4683, the four wedge blocks 4531 abut against the respective surfaces of the profile under the action of the abutting spring 4532. After the profile is positioned by the positioning mechanism 5, the connecting frame 2 drives the positioning mechanism 5 and the profile to move synchronously to the processing area N. Then, the cutting mechanism 6 descends and feeds along the set trajectory to cut the upper surface of the profile. After the upper surface cutting is completed, the execution motor drives the second incomplete gear 452 to rotate clockwise, thereby driving the reversing gear 451 on one side to rotate counterclockwise by 90 degrees and the reversing gear 451 on the other side to rotate clockwise by 90 degrees. While the reversing gear 451 rotates, the profile is driven by the wedge block 4531 to rotate synchronously by 90 degrees and stay stationary for a period of time, so as to switch the unprocessed surface of the profile to the upper side, facilitating the cutting mechanism 6 to cut the remaining surfaces.

[0045] During the above process, since the rotating plate 461 is rotatably connected to the vertical plate 44, when the profile rotates under the action of the reversing gear 451 and the wedge block 4531, the clamping roller 4683 also rotates synchronously, thus ensuring that the profile is always located at the exact center of the circular groove and guaranteeing the normal rotation of the profile.

[0046] Refer to Figure 2 、 Figure 5 and Figure 11 , the positioning mechanism 5 includes a mounting frame 51. Two mounting frames 51 are fixedly sleeved on the central rod 1 up and down above the central gear 31. An annular plate 52 is rotatably connected between the two mounting frames 51. Three inner support components 53 corresponding to the clamping mechanism 4 are connected to the outer side wall of the annular plate 52 along the circumferential direction. An annular guide plate 54 is fixedly connected to the outside of the lower mounting frame 51. The thickness of the annular guide plate 54 located below the unloading area P is less than the thickness of the annular guide plate 54 located below the processing area N and the loading area M.

[0047] Refer to Figure 5, the inner support assembly 53 includes two connecting members 531 fixed to the outer wall of the annular plate 52. The end of the connecting member 531 away from the central rod 1 is rotatably connected to a hinge plate 532. The lower end surface of the hinge plate 532 is fixedly connected to a ball seat 533 through a round rod. The end of the hinge plate 532 away from the connecting member 531 is fixedly connected to a positioning plate 534. The end of the positioning plate 534 away from the connecting member 531 is rotatably connected to a connecting rod 535 through a damper. The end of the connecting rod 535 away from the connecting member 531 is connected to an abutting module 536 for fixing the profile.

[0048] Refer to Figure 5 , Figure 6 , Figure 7 and Figure 10 , the abutting module 536 includes a rectangular seat 5361. The rectangular seat 5361 is fixedly connected to the end of the connecting rod 535 away from the connecting member 531. Trapezoidal blocks 5362 are slidably embedded on the four end faces of the rectangular seat 5361. The trapezoidal blocks 5362 are connected to the rectangular seat 5361 through connecting springs 5363. A first rope 5364 is slidably penetrated through the interiors of the connecting rod 535 and the hinge plate 532. One end of the first rope 5364 close to the central rod 1 is fixedly connected to the connecting member 531. The other end of the first rope 5364 away from the central rod 1 is fixedly connected to four second ropes 5365 corresponding to the four trapezoidal blocks 5362. The corresponding second ropes 5365 and trapezoidal blocks 5362 are fixedly connected.

[0049] During specific operation, the lower end of the ball seat 533 always abuts on the annular guide plate 54. Due to the height difference on the upper surface of the annular guide plate 54, when the ball seat 533 is located in the loading area M and the processing area N, the hinge plate 532 is in a horizontal state under the support of the ball seat 533 (refer to the state change of the connecting rod 535 in Figure 5 ). After the profile is clamped and fixed at the exact center of the circular groove by the clamping roller 4683, when the staff pushes the profile to contact the positioning plate 534, the rectangular seat 5361 can be inserted into the profile. At the same time, the trapezoidal blocks 5362 abut on the inner wall of the profile under the action of the connecting springs 5363 to further clamp the profile.

[0050] After the profile is cut by the cutting mechanism 6, during the process of the profile moving to the unloading area P as the connecting frame 2 moves, the semi-circular block 81 will contact the arc-shaped plate 8 and slide along its side wall, thereby compressing the return spring 43. The connecting rod 535 slides outward along the connecting frame 2 and drives the main body part of the profile to move outward synchronously through the clamping roller 4683 and the wedge-shaped block 4531. Since the thickness of the annular guide plate 54 in the unloading area P is thinner than that in the loading area M and the processing area N, it cannot form a horizontal support under the ball seat 533. When the ball seat 533 moves along the upper surface of the annular guide plate 54 to the unloading area P, the hinge plate 532 will tilt downward. During the tilting process, the first rope 5364 is stretched due to the rotation of the hinge plate 532, thereby driving the second rope 5365 to be stretched synchronously, and pulling the connecting spring 5363 and the trapezoidal block 5362 to contract synchronously, so as to release the pressing on the inner wall of the profile, and then the cut part of the profile can fall off the rectangular seat 5361 smoothly.

[0051] Refer to Figure 9 , the cutting mechanism 6 includes an electric lifting slide 61. The upper end of the central rod 1 is slidably connected with an electric lifting slide 61. The front end of the electric lifting slide 61 is fixedly connected with an electric push rod 62. The movable section of the electric push rod 62 is fixedly connected with a mounting seat 63. The mounting seat 63 is fixedly and penetratingly connected with a guide frame 64. On the guide frame 64 and symmetrically on both sides of the mounting seat 63, there are slidably connected slide connection seats 65. The lower end of the slide connection seat 65 is fixedly connected with a laser cutting machine 66 for cutting profiles. The upper ends of the slide connection seat 65 and the rectangular seat 5361 are jointly connected with a moving component 67. The moving component 67 includes a second electric slider 671. The second electric slider 671 is slidably connected to the upper end of the mounting seat 63 along the telescopic direction of the electric push rod 62. The second electric slider 671 is hinged to the two slide connection seats 65 through connecting plates 672, and the two connecting plates 672 are symmetric about the left and right.

[0052] During specific work, when the two profiles move to the lower part of the mounting seat 63 in the processing area N and stop, the electric lifting slide 61 descends, and drives the two laser cutting machines 66 to descend synchronously through the electric push rod 62, the mounting seat 63, the guide frame 64 and the slide connection seats 65. At the same time, the movable section of the electric push rod 62 automatically expands and contracts to adjust the two laser cutting machines 66 to the cutting starting point. Then during cutting, when the electric push rod 62 expands and contracts, it drives the mounting seat 63 to expand and contract. At the same time, when the second electric slider 671 slides on the mounting seat 63, it drives the two slide connection seats 65 to move in the same or opposite directions on the guide frame 64 through the connecting plates 672. Under the combined action of the electric push rod and the slide connection seats 65, the laser cutting machine 66 can move along any path on the surface of the profile within a certain range, and the moving paths of the two laser cutting machines 66 are symmetric with each other about the telescopic direction of the electric push rod 62 as the central axis.

[0053] Since the profile can rotate on its own under the action of the wedge block 4531 and the reversing gear 451, and at the same time the rotation directions of the two profiles are opposite, in cooperation with the above two laser cutting machines 66 that feed along the symmetrical paths, chamfers that are symmetrical to each other can be cut at the ends of the two profiles simultaneously, thereby improving the processing efficiency.

[0054] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outside", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple pieces", and "multiple groups" are two or more.

[0055] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A multi-station laser cutting device for metal profiles, characterized in that: It includes a base fixed with a central rod, a connecting frame rotatably sleeved on the central rod, a driving mechanism at the center of the connecting frame, and three clamping mechanisms evenly distributed along the circumference at the edge of the connecting frame; A positioning mechanism is connected to the central rod above the driving mechanism, a cutting mechanism is connected to the top end of the central rod, a collection container is fixedly sleeved on the central rod below the connecting frame, and an arc plate is fixed on the outer side wall of the collection container; The clamping mechanism includes a T-shaped plate, two rectangular plates are symmetrically fixed on the lower end face of the T-shaped plate, a sliding rod is fixed between the two rectangular plates, the sliding rod slidably penetrates through the connecting frame, a return spring is sleeved on the sliding rod, and the return spring is connected between the connecting frame and the rectangular plate close to the central rod side, a semi-circular block matched with the arc plate is fixed on the rectangular plate, two vertical plates are symmetrically fixed on the upper end face of the T-shaped plate, an intermittent rotation assembly is shared between the two vertical plates, and two symmetrical pipe clamping assemblies are connected to the end face of the vertical plate far from the central rod; The positioning mechanism includes two mounting frames fixedly sleeved on the central rod above and below the connecting frame, a circular plate is rotatably connected between the two mounting frames, three inner support assemblies corresponding to the clamping mechanisms are connected along the circumference on the outer side wall of the circular plate, and an annular guide plate is fixed on the outer side of the lower mounting frame; The thickness of the annular guide plate below the unloading area is less than the thickness of the loading area and the processing area; The inner support assembly includes two connecting pieces fixed on the outer wall of the circular plate, a hinge plate is rotated at the end of the connecting piece far from the central rod, a ball seat is fixed on the lower end face of the hinge plate through a round rod, a positioning plate is fixed at the end of the hinge plate far from the connecting piece, a connecting rod is rotatably connected to the end of the positioning plate far from the connecting piece through a damper, and an abutting module for fixing the profile is provided at the end of the connecting rod far from the connecting piece; The pipe clamping assembly includes a rotating plate rotated on the end face of the vertical plate far from the central rod, a cylindrical shell is fixed on the end face of the rotating plate far from the central rod, two parallel mounting rods are symmetrically fixed on the inner wall of the cylindrical shell, the included angle between the two mounting rods and the upper end face of the T-shaped plate is forty-five degrees, and the mounting rods in the two cylindrical shells are symmetrically arranged, tooth plates are slidably sleeved on the two mounting rods in the same cylindrical shell, a linkage gear is meshed between the two tooth plates, an electric slider No. 1 is fixed at the end of any one of the tooth plates, the electric slider No. 1 is slidably sleeved on the mounting rod, a square shell is fixed at the front end of the cylindrical shell, a circular groove is commonly penetrated through the rotating plate, the cylindrical shell, the linkage gear and the square shell, and a clamping module is connected between the cylindrical shell and the square shell; The clamping module includes a linkage rod fixed on the front end face of the tooth plate, sliding grooves are opened on the side walls of the cylindrical shell and the square shell, the linkage rod slides in the sliding grooves and is centrosymmetrically distributed with the axis of the circular groove as the symmetry center, two right-angle frames are symmetrically fixed on the rod of the lower linkage rod and located in the square shell, a right-angle frame is also fixed on the upper linkage rod, the right-angle frame on the upper linkage rod is staggeredly distributed with the two right-angle frames on the lower linkage rod and located between them, and clamping rollers are rotated on the horizontal and vertical sections of the right-angle frame and on the end face close to the axis of the circular groove; The abutting module includes a rectangular seat fixedly connected to the end of the connecting rod away from the connecting member. Trapezoidal blocks are slidably embedded on the four end faces of the rectangular seat. The trapezoidal blocks are connected to the rectangular seat by connecting springs. A first rope is slidably passed through the inside of the connecting rod and the hinge plate. One end of the first rope is fixedly connected to the connecting member, and four second ropes are fixed at the other end of the first rope and are matched with the four trapezoidal blocks, and the corresponding second ropes and trapezoidal blocks are fixedly connected to each other.

2. The multi-station laser cutting device for metal profiles according to claim 1, characterized in that: The intermittent rotation assembly includes a reversing gear. Two symmetrically arranged reversing gears are rotatably connected between two vertical plates, and the two reversing gears are meshed with each other. A second incomplete gear is meshed with any one of the reversing gears. The driving mechanism includes a central gear. A central gear is fixed at the center of the connecting frame. The central gear is rotatably sleeved on the central rod. A first incomplete gear is meshed with the edge of the central gear. A circular plate is fixedly sleeved on the central rod above the central gear. The first incomplete gear is rotatably connected below the circular plate. A driving motor is fixed at the upper end of the circular plate. The driving shaft of the driving motor is fixedly connected to the first incomplete gear.

3. The multi-station laser cutting device for metal profiles according to claim 2, wherein: The second incomplete gear is rotatably connected between the two vertical plates. An actuating motor for driving its rotation is connected to the second incomplete gear. The actuating motor is fixedly connected to the vertical plate away from the central rod. A through groove is formed through the front and back of the reversing gear, and a connecting pipe module is connected in the through groove.

4. A multi-station laser cutting device for metal profiles according to claim 3, characterized in that: The connecting pipe module includes a wedge block. Wedge blocks are slidably embedded in the through groove along the circumferential direction. The wedge blocks are connected to the reversing gear by abutting springs. An inclined surface is formed on the end face of the wedge block away from the central rod.

5. A multi-station laser cutting device for metal profiles according to claim 1, characterized in that: The cutting mechanism includes an electric lifting slide. The upper end of the central rod is slidably connected with an electric lifting slide. An electric push rod is fixed at the front end of the electric lifting slide. An installation seat is fixed on the movable section of the electric push rod. A guide frame is fixedly connected through the installation seat. Slide connecting seats are symmetrically and slidably connected to both sides of the installation seat on the guide frame. A laser cutting machine for cutting profiles is fixed at the lower end of the slide connecting seat. A moving assembly is connected between the upper ends of the slide connecting seat and the rectangular seat. The moving assembly includes a second electric slider. The second electric slider is slidably connected to the upper end of the installation seat along the telescopic direction of the electric push rod. The second electric slider is hinged to the two slide connecting seats through connecting plates, and the two connecting plates are symmetric about the left and right.

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