A fully enclosed exchange platform laser cutting machine and its usage method

Abstract

The present invention discloses a fully enclosed exchange platform laser cutting machine and a using method, belonging to the technical field of cutting machines, including a cutting machine body, a cross beam that moves horizontally along the length direction of the cutting machine body, a laser cutting head installed on the side of the cross beam, and a protective shell fixed at the end of the cutting machine body to protect the cutting area. In the present invention, a liftable universal ball is arranged between the ends of adjacent serrated plates, and it is used in cooperation with a lifting mechanism composed of a support frame, a first rack, a rotating shaft, a first gear, a second rack, a hollow box, a sliding rod, and a first spring. After the plate cutting is completed and the plate moves to the end plate position, the universal ball can be automatically controlled to rise to lift the cut plate, which not only facilitates the separation of workpieces and waste, but also supports the plate during the feeding process. In addition, the position is adjusted in cooperation with the centering and correction mechanism to ensure the accuracy of the plate placement.

Description

Technical Field

[0001] The present invention relates to a laser cutting machine, in particular to a fully enclosed exchange platform laser cutting machine. The present invention also relates to a method for using a fully enclosed exchange platform laser cutting machine, in particular to a method for use, and belongs to the technical field of cutting machines. Background Art

[0002] Currently, during the loading process of a laser cutting machine, a fixture is used to hoist a plate. Since the top of the exchange table is a serrated support plate, in order to reduce the resistance during adjustment and avoid scratching the plate by the support plate, it is necessary to manually push and adjust the plate in the air after moving to the top of the exchange table, and then lower the sheet material to the top of the exchange table. Manual adjustment is not only time-consuming and laborious, but also cannot ensure the precise centering of the plate, there is a certain placement error, which affects the cutting effect.

[0003] Therefore, a fully enclosed exchange platform laser cutting machine and a method for using the same are designed to optimize the above problems. Summary of the Invention

[0004] The main purpose of the present invention is to provide a fully enclosed exchange platform laser cutting machine and a method for using the same. By arranging liftable universal balls between the ends of adjacent serrated plates and using a lifting mechanism composed of a support frame, a first rack, a rotating shaft, a first gear, a second rack, a hollow box, a sliding rod, and a first spring, after the plate cutting is completed and the plate moves to the end plate position, under the transmission control of the rack and gear, the universal balls can be automatically controlled to rise to lift the cut plate, which is not only convenient for separating the workpiece and the waste, but also can support the plate during the loading process. In addition, the position is adjusted by cooperating with the centering and correction mechanism to ensure the accuracy of the plate placement. Through the centering and correction mechanism composed of a support plate, a second gear, a third rack, a second spring, a fourth rack, a push plate, a strip groove, a slider, a fixing bolt, and a limiting ring, after the plate is placed on the top of the universal ball, the mechanical linkage control method can be used to automatically control the opposite movement of the two push plates to automatically adjust the centering of the plate, ensuring the accuracy of the plate placement position and making the use more convenient and the practicability higher. Through the slag cleaning mechanism composed of a connecting rod, a scraper, and a vertical rod, the connecting rod is fixedly connected to the second rack. When the plate is controlled to rise after cutting, the scraper can be automatically driven to move vertically upward. The scraper slides along the side of the serrated plate to self-clean the outside of the serrated plate, improving the functionality of the device.

[0005] The object of the present invention can be achieved by adopting the following technical solutions:

[0006] A fully enclosed exchange platform laser cutting machine, comprising a cutting machine body, a cross beam that moves horizontally along the length direction of the cutting machine body, a laser cutting head installed on the side of the cross beam, a protective shell fixed at the end of the cutting machine body to protect the cutting area, platform frame plates slidably arranged at both ends of the cutting machine body, and serrated plates evenly arranged between the inner sides of the platform frame plates;

[0007] An exchange and conveying mechanism for horizontally conveying the platform frame plates and swapping their positions is provided on the side of the cutting machine body;

[0008] An end plate is fixed at one end of the cutting machine body away from the protective shell. Installation blocks are evenly and symmetrically arranged on both sides of the platform frame plates. The installation blocks are located between the serrated plates. Universal balls are provided at the tops of the installation blocks, and a lifting mechanism is provided below the installation blocks;

[0009] Centering and correcting mechanisms for adjusting the position of the plates are symmetrically provided on both sides of the platform frame plates;

[0010] Slag cleaning mechanisms are provided on both sides of the serrated plates, and receiving boxes are provided at the bottoms of the platform frame plates.

[0011] Preferably: The exchange and conveying mechanism includes sprockets, chains, and hexagonal guide rails. The sprockets are rotatably installed at both ends inside the cutting machine body. A motor for driving the sprockets is provided on the cutting machine body. Chains are engaged between two groups of sprockets on the side of the cutting machine body. Hexagonal guide rails are provided at the top and bottom on the side of the cutting machine body. The platform frame plates are slidably arranged between the hexagonal guide rails on the side of the cutting machine body, and the sides of the platform frame plates are fixedly connected to the chains.

[0012] Preferably: The lifting mechanism includes support frames, first racks, rotating shafts, first gears, second racks, and pushing components. The support frames are evenly arranged along the length direction of the platform frame plates, and the bottom ends of the support frames are fixedly connected to the inner bottom of the receiving boxes. First racks are slidably arranged along the length direction on both sides of the platform frame plates, and the first racks are slidably arranged inside the support frames. Rotating shafts are evenly rotatably installed between both sides of the platform frame plates. First gears meshing with the first racks are installed on the rotating shafts. Second racks meshing with the first gears are vertically provided on the sides of the first gears. The bottom ends of the installation blocks are fixedly connected to the second racks. A pushing component for controlling the horizontal sliding of the first racks is provided at one end of the platform frame plate close to the end plate.

[0013] Preferably: The pushing component includes a hollow box, sliding rods, and first springs. The hollow box is fixed at one end of the platform frame plate close to the end plate. Sliding rods are slidably arranged at both ends on the side of the hollow box close to the end plate. The sliding rods extend into the interior of the hollow box. The ends of the first racks slide and extend into the interior of the hollow box and are fixedly connected to the sliding rods. First springs are provided between the ends of the sliding rods and the inner sides of the hollow box.

[0014] Preferably, the centering and correcting mechanism includes a support plate, a second gear, a third rack, a second spring, a fourth rack and a push plate. The support plate is fixed to the top of the mounting block. Third racks are vertically and slidably arranged at the top ends of the support plate. The bottom end of the universal ball is fixedly connected to the third rack. A second spring is provided between the bottom end of the universal ball and the top end of the support plate. A second gear meshing with the third rack is rotatably installed inside the support plate. The length direction of the second gear is perpendicular to the sawtooth plate. A fourth rack is horizontally slidably arranged on the side of the support plate. The fourth rack meshes with the bottom of the second gear. The positions of the fourth rack and the third rack are staggered and located in different vertical planes. A push plate is vertically installed at the end of the fourth rack.

[0015] Preferably, a strip-shaped groove is formed in the end of the fourth rack away from the support plate along the length direction. A slider is slidably arranged on the strip-shaped groove. A fixing bolt is provided between the slider and the fourth rack, and the fixing bolt passes through the inside of the strip-shaped groove. The slider is fixedly connected to the push plate.

[0016] Preferably, a limiting ring is fixed to the bottom of the fourth rack. The limiting ring is sleeved on the outside of the rotating shaft. A ball bearing that fits the outside of the rotating shaft is rotatably installed inside the limiting ring.

[0017] Preferably, the slag cleaning mechanism includes a connecting rod, a scraping plate and a vertical rod. The connecting rod is horizontally fixed between the second racks. Scraping plates are attached to both sides of the sawtooth plate, and the scraping plates are slidably connected to the sawtooth plate. Vertical rods are provided between the bottom of the first rack and the connecting rod.

[0018] Preferably, the bottom end of the receiving box is inclined towards the end plate. Discharge ports are formed at the ends of the receiving box close to the end plate. A baffle is hingedly installed at the inner top of the discharge port. A pulling rope is provided between the top of the baffle and the first rack. A fixed pulley is rotatably installed at the end of the receiving box. The pulling rope passes around the fixed pulley and is connected to the first rack. A storage box is provided at the bottom of the cutting machine body close to the end plate. Movable wheels are provided on the side of the storage box.

[0019] The present invention also provides a method for using a fully enclosed exchange platform laser cutting machine, including the following steps:

[0020] Step 1: During feeding, the exchange and conveying mechanism controls the platform frame to move towards the end plate. After moving to the end point, the lifting mechanism is used to control the vertical movement of the universal ball. The universal ball moves to the top of the sawtooth plate, higher than the horizontal plane where the top end of the sawtooth plate is located;

[0021] Step 2: Lift the plate above the platform frame and then vertically place it on the top of the universal ball. After the plate falls onto the top of the universal ball, the centering and correcting mechanism is used to perform centering adjustment on the plate to correct the position of the plate. Then, the lifting mechanism is used to control the plate to move down and be placed flat on the top of the sawtooth plate;

[0022] Step 3: Convey the sheet on the top of the platform frame plate towards the inside of the protective shell through the exchange conveying mechanism, and then perform cutting processing using the laser cutting head. For the cut sheet removed from the inside of the protective shell, the lifting mechanism is also used to lift the sheet to separate the workpiece from the sheet material. At the same time, the side of the sheet is limited by the centering and correction mechanism to prevent the translation of the sheet. In addition, the slag cleaning mechanism is used to scrape off the slag on the side of the sawtooth plate and let it fall into the receiving box. Finally, after completely removing the sheet waste and the workpiece, repeat the above steps to continuously perform laser cutting of the sheet.

[0023] The beneficial effects of the present invention are as follows:

[0024] A fully enclosed exchange platform laser cutting machine and its usage method provided by the present invention, by arranging liftable universal balls between the ends of adjacent sawtooth plates, and cooperating with the lifting mechanism composed of a support frame, a first rack, a rotating shaft, a first gear, a second rack, a hollow box, a sliding rod, and a first spring for use, so that after the sheet cutting is completed and the sheet moves to the end plate position, the rise of the universal ball can be automatically controlled to lift the cut sheet, which is not only convenient for separating the workpiece and the waste, but also can support the sheet during the feeding process. In addition, the position is adjusted in cooperation with the centering and correction mechanism to ensure the accuracy of the sheet placement;

[0025] The centering and correction mechanism composed of a support plate, a second gear, a third rack, a second spring, a fourth rack, a push plate, a strip-shaped groove, a slider, a fixing bolt, and a limiting ring can, after the sheet is placed on the top of the universal ball, adopt a mechanical linkage control method to automatically control the opposite movement of the two push plates to automatically perform centering adjustment on the sheet, ensuring the accuracy of the sheet placement position, being more convenient to use, and having higher practicability;

[0026] The slag cleaning mechanism composed of a connecting rod, a scraping plate, and a vertical rod, with the connecting rod fixedly connected to the second rack, can automatically drive the vertical upward movement of the scraping plate when controlling the rise of the sheet material after cutting. The scraping plate slides along the side of the sawtooth plate to perform self-cleaning on the outside of the sawtooth plate, improving the functionality of the device. Description of the Drawings

[0027] Figure 1 It is the front view of a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method of the present invention;

[0028] Figure 2 It is the partial structure diagram of the platform frame plate of a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method of the present invention;

[0029] Figure 3 It is the gear and rack transmission structure diagram of a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method of the present invention;

[0030] Figure 4 In a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method according to the present invention Figure 2 The enlarged view at position A in

[0031] Figure 5 In a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method according to the present invention Figure 2 The enlarged view at position B in

[0032] Figure 6 The structure diagram of the fourth rack in a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method according to the present invention

[0033] Figure 7 The sectional view of the receiving box in a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method according to the present invention

[0034] Figure 8 The storage box diagram in a preferred embodiment of a fully enclosed exchange platform laser cutting machine and its usage method according to the present invention

[0035] In the figure: 1. Cutting machine body; 101. Cross beam; 102. Laser cutting head; 103. Protective shell; 104. Platform frame plate; 105. Serrated plate

[0036] 2. Exchange and conveying mechanism; 201. Sprocket; 202. Chain; 203. Hexagonal guide rail

[0037] 3. End plate; 4. Mounting block

[0038] 5. Lifting mechanism; 501. Support frame; 502. First rack; 503. Rotating shaft; 504. First gear; 505. Second rack; 506. Hollow box; 507. Slide rod; 508. First spring

[0039] 6. Universal ball

[0040] 7. Centering and correction mechanism; 701. Support plate; 702. Second gear; 703. Third rack; 704. Second spring; 705. Fourth rack; 706. Pushing plate; 707. Strip-shaped groove; 708. Slide block; 709. Fixed bolt; 710. Limit ring

[0041] 8. Slag cleaning mechanism; 801. Connecting rod; 802. Scraper; 803. Vertical rod

[0042] 9. Receiving box; 901. Discharge port; 902. Baffle; 903. Pull rope; 904. Storage box; 905. Movable wheel Specific embodiments

[0043] To make the technical solution of the present invention clearer and more definite to those skilled in the art, the present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings. However, the implementation manners of the present invention are not limited thereto.

[0044] As Figures 1 - 8 shown, this embodiment provides a fully enclosed exchange platform laser cutting machine, which includes a cutting machine body 1, a cross beam 101 that moves horizontally along the length direction of the cutting machine body 1, a laser cutting head 102 installed on the side of the cross beam 101, a protective shell 103 fixed at the end of the cutting machine body 1 to protect the cutting area, platform frame plates 104 slidably arranged at both ends of the cutting machine body 1, and serrated plates 105 evenly arranged between the inner sides of the platform frame plates 104;

[0045] An exchange conveying mechanism 2 for horizontally conveying the platform frame plates 104 and swapping their positions is provided on the side of the cutting machine body 1;

[0046] An end plate 3 is fixed at one end of the cutting machine body 1 away from the protective shell 103. Installation blocks 4 are evenly and symmetrically arranged on both sides of the platform frame plates 104. The installation blocks 4 are located between the serrated plates 105. Universal balls 6 are provided at the tops of the installation blocks 4, and a lifting mechanism 5 is provided below the installation blocks 4;

[0047] Centering and correcting mechanisms 7 for adjusting the position of the plate are symmetrically arranged on both sides of the platform frame plates 104;

[0048] Slag cleaning mechanisms 8 are provided on both sides of the serrated plates 105, and receiving boxes 9 are provided at the bottoms of the platform frame plates 104.

[0049] Overall working principle: During use, the two sets of platform frame plates 104 are respectively located at both ends of the cutting machine body 1, and cutting and loading / unloading operations are respectively carried out. When cutting, the cross beam 101 drives the laser cutting head 102 to move horizontally and vertically for cutting operations. When loading the top of the serrated plate 105, the lifting mechanism 5 is used to control the vertical movement of the universal ball 6. The universal ball 6 moves to the top of the serrated plate 105, higher than the horizontal plane where the top end of the serrated plate 105 is located. The plate is hoisted above the platform frame plate 104 and then vertically placed on the top of the universal ball 6. After the plate falls onto the top of the universal ball 6, rolling friction exists between the plate and the universal ball 6, and the resistance is small. The centering and correction mechanism 7 is used to perform centering adjustment on the plate to correct the position of the plate. Then, the lifting mechanism 5 is used to control the plate to move downward and be placed flat on the top of the serrated plate 105. When unloading the cut plate, the lifting mechanism 5 is used to lift the plate, and the plate is separated from the serrated plate 105. The plate is only supported at multiple points by the universal ball 6, which facilitates the workpiece to be separated from the plate waste. Moreover, during the process of controlling the plate to rise, the centering and correction mechanism 7 limits the side of the plate to prevent the plate from translating. In addition, the slag cleaning mechanism 8 is used to scrape the slag on the side of the serrated plate 105 and let it fall into the receiving box 9. Finally, after completely removing the plate waste and the workpiece, the above steps are repeated to continuously perform laser cutting of the plate.

[0050] In this embodiment, the exchange and conveying mechanism 2 includes a sprocket 201, a chain 202, and a hexagonal guide rail 203. The sprockets 201 are rotatably installed at both ends inside the cutting machine body 1. A motor for driving the sprockets 201 is provided on the cutting machine body 1. A chain 202 is engaged between the two sprockets 201 on the side of the cutting machine body 1. Hexagonal guide rails 203 are provided at both the top and bottom on the side of the cutting machine body 1. The platform frame plate 104 is slidably arranged between the hexagonal guide rails 203 on the side of the cutting machine body 1, and the side of the platform frame plate 104 is fixedly connected to the chain 202.

[0051] Local working principle: When controlling the platform frame plate 104 to translate and swap positions, the motor is started to control the rotation of the sprocket 201, and the sprocket 201 controls the platform frame plate 104 on the chain 202 to move towards each other for position swapping.

[0052] In this embodiment, the lifting mechanism 5 includes a support frame 501, a first rack 502, a rotating shaft 503, a first gear 504, a second rack 505 and a pushing component. The support frames 501 are uniformly arranged along the length direction of the platform frame plate 104, and the bottom ends of the support frames 501 are fixedly connected to the inner bottom of the receiving box 9. The first racks 502 are slidably arranged on both sides of the platform frame plate 104 along the length direction, and the first racks 502 are slidably arranged inside the support frames 501. The rotating shafts 503 are uniformly rotatably installed between both sides of the platform frame plate 104. The first gears 504 meshing with the first racks 502 are installed on the rotating shafts 503. The second racks 505 meshing with the first gears 504 are vertically arranged on the sides of the first gears 504. The bottom end of the mounting block 4 is fixedly connected to the second rack 505. A pushing component for controlling the horizontal sliding of the first rack 502 is arranged at one end of the platform frame plate 104 close to the end plate 3.

[0053] Local working principle: When the platform frame plate 104 moves towards the end plate 3, when it reaches the position terminal, the pushing component will control the horizontal movement of the first rack 502. The first rack 502 will control the rotation of the first gear 504 and the rotating shaft 503. The rotation of the first gear 504 will control the vertical upward movement of the second rack 505, lifting the universal ball 6 at the top of the mounting block 4 upward. When the platform frame plate 104 moves away from the end plate 3, at this time, the pushing component will control the first rack 502 to move in the reverse direction, resetting the mounting block 4 and the universal ball 6.

[0054] In this embodiment, the pushing component includes a hollow box 506, a sliding rod 507 and a first spring 508. The hollow box 506 is fixed at one end of the platform frame plate 104 close to the end plate 3. The sliding rods 507 are slidably arranged at both ends of the side of the hollow box 506 close to the end plate 3. A linear bearing or a guide sleeve is installed on the side wall of the hollow box 506 close to the end plate 3 and sleeved outside the sliding rod 507 to ensure that the sliding rod 507 only slides in the horizontal direction and prevent jamming caused by deflection. The sliding rods 507 extend into the hollow box 506. The end of the first rack 502 slides and extends into the hollow box 506 and is fixedly connected to the sliding rod 507. The first springs 508 are arranged between the ends of the sliding rods 507 and the inner side of the hollow box 506.

[0055] Local working principle: When the platform frame plate 104 moves towards the end plate 3, the sliding rod 507 contacts the end plate 3 first and blocks the continuous movement of the sliding rod 507. However, the platform frame plate 104 will continue to translate a certain distance. At this time, the sliding rod 507 will compress the first spring 508, and the first rack 502 will slide relative to the platform frame plate 104. The first rack 502 will control the rotation of the first gear 504 on the rotating shaft 503. When the platform frame plate 104 moves towards the direction away from the end plate 3, the first spring 508 will control the reset of the first rack 502. The initial compression amount of the first spring 508 should meet the requirement that when the sliding rod 507 does not contact the end plate 3, the first rack 502 is in the initial position, so that the bottom end of the universal ball 6 is 10 - 15 mm lower than the top end of the serrated plate 105 (the specific value can be adjusted according to the thickness of the plate), ensuring that the universal ball 6 does not interfere with the supporting function of the serrated plate 105 when the plate is placed.

[0056] In this embodiment, the centering and correcting mechanism 7 includes a support plate 701, a second gear 702, a third rack 703, a second spring 704, a fourth rack 705 and a push plate 706. The support plate 701 is fixed on the top of the mounting block 4. Third racks 703 are vertically slidably arranged at the top ends of the support plate 701. The bottom end of the universal ball 6 is fixedly connected to the third rack 703. A second spring 704 is arranged between the bottom end of the universal ball 6 and the top end of the support plate 701. A second gear 702 meshing with the third rack 703 is rotatably installed inside the support plate 701. The length direction of the second gear 702 is perpendicular to the serrated plate 105. A fourth rack 705 is horizontally slidably arranged on the side of the support plate 701. The fourth rack 705 meshes with the bottom of the second gear 702. The positions of the fourth rack 705 and the third rack 703 are staggered in different vertical planes. A push plate 706 is vertically installed at the end of the fourth rack 705.

[0057] Local working principle: Before use, adjust the position of the pushing plate 706 according to the width of the plate to ensure that the shortest distance between the opposing pushing plates 706 is the same as the width of the plate. After the mounting block 4 and the universal balls 6 are lifted upward, the pushing plate 706 protrudes above the serrated plate 105 and is located on both sides of the platform frame plate 104. After the plate falls on the top of the universal balls 6, the increased weight on the top of the universal balls 6 will control the downward movement of the universal balls 6. After the universal balls 6 drop to the lowest height, they are still higher than the horizontal plane where the serrated plate 105 is located, ensuring the stability of the plate and providing guidance for the subsequent descent to the serrated plate 105. When the universal balls 6 move downward, the second spring 704 will be compressed. When the third rack 703 moves downward with the universal balls 6, it will control the rotation of the second gear 702. The rotation of the second gear 702 will drive the pushing plate 706 at the end of the fourth rack 705 to move towards the plate, performing centering correction on the plate. When the platform frame plate 104 moves towards the direction away from the end plate 3, the first spring 508 will control the reset of the first rack 502. When the plate moves downward in the state of being clamped by the pushing plates 706, it falls onto the top of the serrated plate 105, and then the pushing plates 706 will separate from each other.

[0058] In this embodiment, a strip-shaped groove 707 is formed along the length direction at one end of the fourth rack 705 away from the support plate 701. A slider 708 is slidably arranged on the strip-shaped groove 707. A fixing bolt 709 is provided between the slider 708 and the fourth rack 705, and the fixing bolt 709 passes through the inside of the strip-shaped groove 707. The slider 708 is fixedly connected to the pushing plate 706.

[0059] Local working principle: When adjusting the position of the pushing plate 706, use an Allen wrench to loosen the fixing bolt 709 between the slider 708 and the fourth rack 705, so that the slider 708 can freely slide within the strip-shaped groove 707. According to the width of the plate to be cut, manually push the pushing plate 706 to move along the length direction of the fourth rack 705, so that the inner spacing between the two pushing plates 706 is the same as the width of the plate. Ensure that the moving distances of the two pushing plates 706 are the same through a scale or graduation lines (graduations are marked on the side of the fourth rack 705) to avoid the plate skewing caused by unilateral deviation. After confirming the position, tighten the fixing bolt 709 again to fixedly connect the slider 708 and the fourth rack 705.

[0060] In this embodiment, a limiting ring 710 is fixed to the bottom of the fourth rack 705. The limiting ring 710 is sleeved on the outside of the rotating shaft 503, and a ball that fits the outside of the rotating shaft 503 is rotatably installed on the inside of the limiting ring 710.

[0061] Local working principle: During the process of controlling the movement of the fourth rack 705, the limit ring 710 moves along the length direction of the rotating shaft 503, which can stably support the fourth rack 705. When the rotating shaft 503 rotates, it contacts the balls inside the limit ring 710, reducing the frictional resistance and continuously ensuring the stability of the fourth rack 705.

[0062] In this embodiment, the slag cleaning mechanism 8 includes a connecting rod 801, a scraping plate 802, and a vertical rod 803. The connecting rod 801 is horizontally fixed between the second racks 505. Scraping plates 802 are attached to both sides of the serrated plate 105, and the scraping plates 802 are slidably connected to the serrated plate 105. Vertical rods 803 are provided between the bottom of the first rack 502 and the connecting rod 801.

[0063] Local working principle: When the second rack 505 rises, it will simultaneously drive the connecting rod 801 to move upward. The initial position of the scraping plate 802 is at the bottom of the side of the serrated plate 105. Therefore, the upward movement of the connecting rod 801 will control the upward movement of the scraping plate 802. The moving height of the scraping plate 802 needs to cover the full height of the serrated plate 105. When the second rack 505 rises, the scraping plate 802 slides upward along the side of the serrated plate 105, scraping the slag from the serrated gaps and cleaning the surface of the serrated plate 105. The scraping plate 802 is made of stainless steel material, with a thickness of 5 - 8 mm and a 15° edge chamfer to enhance the slag scraping effect. The scraping plate 802 is detachably installed on the connecting rod 801 through bolts and can be quickly replaced after wear.

[0064] In this embodiment, the bottom end of the receiving box 9 is inclined towards the end plate 3. Discharge ports 901 are opened at one end of the receiving box 9 close to the end plate 3. A baffle 902 is hingedly installed at the inner top of the discharge port 901. A pulling rope 903 is provided between the top of the baffle 902 and the first rack 502. A fixed pulley is rotatably installed at the end of the receiving box 9. The pulling rope 903 bypasses the fixed pulley and is connected to the first rack 502. A storage box 904 is provided at one end of the bottom of the cutting machine body 1 close to the end plate 3. A moving wheel 905 is provided on the side of the storage box 904, and the moving wheel 905 is a universal wheel with a brake.

[0065] Local working principle: During the cutting process, the slag will fall into the interior of the receiving box 9. When the platform frame 104 moves towards the end plate 3 and the first rack 502 slides, the baffle 902 will be pulled upward through the pulling rope 903, opening the discharge port 901. The slag will enter the interior of the storage box 904 through the discharge port 901. When the position of the first rack 502 is reset, the baffle 902 resets under the action of gravity, blocking the discharge port 901 again.

[0066] As Figures 1 - 8 shown, the following is the usage method of a fully enclosed exchange platform laser cutting machine in this embodiment:

[0067] Step 1: During loading, the exchange conveying mechanism 2 controls the platform frame plate 104 to move towards the end plate 3. After moving to the end point, the lifting mechanism 5 is used to control the vertical movement of the universal ball 6. The universal ball 6 moves to the top of the sawtooth plate 105, higher than the horizontal plane where the top end of the sawtooth plate 105 is located.

[0068] Step 2: Lift the sheet to above the platform frame plate 104 and then vertically place it on the top of the universal ball 6. After the sheet falls onto the top of the universal ball 6, use the centering and correction mechanism 7 to adjust the centering of the sheet and correct the position of the sheet. Then, use the lifting mechanism 5 to control the sheet to move down and place it flat on the top of the sawtooth plate 105.

[0069] Step 3: The exchange conveying mechanism 2 conveys the sheet on the top of the platform frame plate 104 towards the inside of the housing 103, and then uses the laser cutting head 102 for cutting. For the cut sheet removed from the inside of the housing 103, the lifting mechanism 5 is also used to lift the sheet to separate the workpiece from the sheet material. At the same time, the centering and correction mechanism 7 is used to limit the side of the sheet to prevent the translation of the sheet. In addition, the slag cleaning mechanism 8 is used to scrape the slag on the side of the sawtooth plate 105 and let it fall into the receiving box 9. Finally, after completely removing the sheet waste and the workpiece, repeat the above steps to continuously perform laser cutting of the sheet.

[0070] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.

Claims

1. A fully enclosed exchange platform laser cutting machine, comprising a cutting machine body (1), a cross beam (101) horizontally moving along the length direction of the cutting machine body (1), a laser cutting head (102) installed on the side of the cross beam (101), a protective shell (103) fixed at the end of the cutting machine body (1) to protect the cutting area, platform frame plates (104) slidably arranged at both ends of the cutting machine body (1), and serrated plates (105) uniformly arranged between the inner sides of the platform frame plates (104); It is characterized in that: An exchange conveying mechanism (2) for horizontally conveying the platform frame plates (104) and swapping their positions is provided on the side of the cutting machine body (1); An end plate (3) is fixed at one end of the cutting machine body (1) away from the protective shell (103). Mounting blocks (4) are uniformly and symmetrically arranged on both sides of the platform frame plates (104). The mounting blocks (4) are located between the serrated plates (105). Universal balls (6) are provided at the tops of the mounting blocks (4). A lifting mechanism (5) is provided below the mounting blocks (4); Centering and correcting mechanisms (7) for adjusting the positions of the plates are symmetrically provided on both sides of the platform frame plates (104); Slag cleaning mechanisms (8) are provided on both sides of the serrated plates (105), and receiving boxes (9) are provided at the bottoms of the platform frame plates (104); The lifting mechanism (5) includes a support frame (501), a first rack (502), a rotating shaft (503), a first gear (504), a second rack (505), and a pushing component. The support frames (501) are uniformly arranged along the length direction of the platform frame plates (104), and the bottom ends of the support frames (501) are fixedly connected to the inner bottom of the receiving boxes (9). First racks (502) are slidably arranged on both sides of the platform frame plates (104) along the length direction, and the first racks (502) are slidably arranged inside the support frames (501). Rotating shafts (503) are uniformly rotatably installed between both sides of the platform frame plates (104). First gears (504) meshing with the first racks (502) are installed on the rotating shafts (503). Second racks (505) meshing with the first gears (504) are vertically provided on the sides of the first gears (504). The bottom ends of the mounting blocks (4) are fixedly connected to the second racks (505). A pushing component for controlling the horizontal sliding of the first racks (502) is provided at one end of the platform frame plates (104) close to the end plate (3); The pushing component includes a hollow box (506), a sliding rod (507), and a first spring (508). The hollow box (506) is fixed at one end of the platform frame plates (104) close to the end plate (3). Sliding rods (507) are slidably arranged at both ends on the side of the hollow box (506) close to the end plate (3). The sliding rods (507) extend into the interior of the hollow box (506). The ends of the first racks (502) slide and extend into the interior of the hollow box (506) and are fixedly connected to the sliding rods (507). First springs (508) are provided between the ends of the sliding rods (507) and the inner sides of the hollow box (506).

2. The fully enclosed exchange platform laser cutting machine according to claim 1, wherein: The exchange conveying mechanism (2) includes a sprocket (201), a chain (202) and a hexagonal guide rail (203). The sprockets (201) are rotatably installed at both ends inside the cutting machine body (1). A motor for driving the sprockets (201) is provided on the cutting machine body (1). A chain (202) is engaged between two groups of sprockets (201) on the side of the cutting machine body (1). Hexagonal guide rails (203) are provided at both the top and bottom on the side of the cutting machine body (1). The platform frame (104) is slidably arranged between the hexagonal guide rails (203) on the side of the cutting machine body (1), and the side of the platform frame (104) is fixedly connected to the chain (202).

3. The all-closed exchange platform laser cutting machine according to claim 2, characterized in that: The centering and correcting mechanism (7) includes a support plate (701), a second gear (702), a third rack (703), a second spring (704), a fourth rack (705) and a push plate (706). The support plate (701) is fixed to the top of the mounting block (4). Third racks (703) are vertically slidably arranged at the top ends of the support plate (701). The bottom end of the universal ball (6) is fixedly connected to the third rack (703). A second spring (704) is provided between the bottom end of the universal ball (6) and the top end of the support plate (701). A second gear (702) meshing with the third rack (703) is rotatably installed inside the support plate (701). The length direction of the second gear (702) is perpendicular to the sawtooth plate (105). A fourth rack (705) is horizontally slidably arranged on the side of the support plate (701). The fourth rack (705) meshes with the bottom of the second gear (702). The positions of the fourth rack (705) and the third rack (703) are staggered in different vertical planes. A push plate (706) is vertically installed at the end of the fourth rack (705).

4. The fully enclosed exchange platform laser cutting machine according to claim 3, wherein: A strip-shaped groove (707) is formed along the length direction at one end of the fourth rack (705) away from the support plate (701). A slider (708) is slidably arranged on the strip-shaped groove (707). A fixing bolt (709) is provided between the slider (708) and the fourth rack (705), and the fixing bolt (709) passes through the inside of the strip-shaped groove (707). The slider (708) is fixedly connected to the push plate (706).

5. The fully enclosed exchange platform laser cutting machine according to claim 4, characterized in that: A limit ring (710) is fixed to the bottom of the fourth rack (705). The limit ring (710) is sleeved on the outside of the rotating shaft (503). A ball fitting the outside of the rotating shaft (503) is rotatably installed inside the limit ring (710).

6. The fully enclosed exchange platform laser cutting machine according to claim 3, wherein: The bottom end of the receiving box (9) is inclined towards the end plate (3). Discharge ports (901) are formed at both ends of the receiving box (9) close to the end plate (3). A baffle (902) is hingedly installed at the inner top of the discharge port (901). A pull rope (903) is provided between the top of the baffle (902) and the first rack (502). A fixed pulley is rotatably installed at the end of the receiving box (9). The pull rope (903) bypasses the fixed pulley and is connected to the first rack (502). A storage box (904) is provided at one end of the bottom of the cutting machine body (1) close to the end plate (3). A moving wheel (905) is provided on the side of the storage box (904).

7. A method for using a laser cutting machine with a fully enclosed exchange platform, based on a laser cutting machine with a fully enclosed exchange platform according to any one of claims 1-6, characterized in that, It includes the following steps: Step 1: During loading, the exchange conveying mechanism (2) controls the platform frame plate (104) to move towards the end plate (3). After moving to the end point, the lifting mechanism (5) is used to control the vertical movement of the universal ball (6). The universal ball (6) moves to the top of the serrated plate (105), higher than the horizontal plane where the top of the serrated plate (105) is located. Step 2: Lift the plate above the platform frame plate (104) and then vertically place it on the top of the universal ball (6). After the plate falls onto the top of the universal ball (6), use the centering and correction mechanism (7) to perform centering adjustment on the plate to correct the position of the plate. Then, use the lifting mechanism (5) to control the plate to move down and lie flat on the top of the serrated plate (105). Step 3: Convey the plate on the top of the platform frame plate (104) towards the inside of the protective shell (103) through the exchange conveying mechanism (2), and then use the laser cutting head (102) for cutting. For the plate that has been cut and removed from the inside of the protective shell (103), also use the lifting mechanism (5) to lift the plate to separate the workpiece from the sheet metal. At the same time, use the centering and correction mechanism (7) to limit the side of the plate to prevent the translation of the plate. In addition, use the slag cleaning mechanism (8) to scrape off the slag on the side of the serrated plate (105) and let it fall into the inside of the receiving box (9). Finally, after completely removing the plate waste and the workpiece, repeat the above steps to continuously perform laser cutting of the plate.

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