A plate cutting machine for producing special mining vehicles

Abstract

The present application relates to the technical field of laser cutting machines and discloses a plate cutting machine for producing special vehicles in mines, which is used to solve the problems of plates being scratched by the tip of the sword bar and excessive slag on the side wall of the sword bar affecting subsequent slag falling. The fixed sword bar is changed to a mobile type, and a support plate and a ball bearing are provided at the loading position. When the plate is loaded, the sword bar that has leaked out of the support plate is driven by a power device to move, thereby driving the plate to a fixed position, preventing sliding friction between the plate and the tip of the sword bar, thereby avoiding the plate being scratched by the tip of the sword bar. When the sword bar is retracted, the sword bar squeezes the transmission fluid in the liquid storage bag, allowing the transmission fluid to enter the telescopic bellows, pushing the support shaft, gear I, gear II and grinding disc to move, and the grinding disc rotates. The rotating grinding disc grinds and cleans the slag condensed on the side wall of the sword bar, thereby preventing excessive slag condensation on the side wall of the sword bar from affecting the slag falling during subsequent cutting.

Description

Technical Field

[0001] The present application relates to the technical field of laser cutting machines, and in particular to a plate cutting machine for producing special mining vehicles. Background Art

[0002] Special mining vehicles refer to vehicles with special functions and designs used in the mining and operation process of mines. These vehicles are usually used to transport ore, equipment, personnel, and handle waste in mines. They are important equipment necessary for mining production. The plates of special mining vehicles are the key materials for manufacturing special mining vehicles. Their performance and quality are directly related to the service life, safety and operating efficiency of the vehicle. In the production process of special mining vehicle plates, laser cutting machines are needed to cut the plates.

[0003] When cutting the plates of special mining vehicles, the plates need to be placed on the sword grid of the laser cutting machine to support and fix the plates, and then the plates are cut by the laser cutting device; however, in the process of placing the plates on the sword grid, the position of the plates needs to be adjusted, and the plates will be scratched by the tip of the sword grid during the movement of the plates; and during the cutting process of the laser cutting machine, the slag of the laser cutting will fall on the sword grid. After long-term cutting, a large amount of slag will condense on the side walls of the sword grid, affecting the falling of the slag during subsequent cutting. Summary of the Invention

[0004] The present application proposes a plate cutting machine for the production of special vehicles in mines, which has the advantages of no relative sliding of the plate with the tip of the sword grid and automatic cleaning of the slag on the side wall of the sword grid, so as to solve the problem of the plate being scratched by the tip of the sword grid and excessive slag on the side wall of the sword grid affecting the subsequent falling of slag.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: a plate cutting machine for the production of special vehicles in mines, comprising a support frame, a gantry, a laser cutting device and a sword grid, support cross bars are fixedly installed on both sides of the inner wall of the support frame, and the support frame is provided with: a support plate, fixedly installed above one end of the support frame, and a plurality of ball bearings are embedded on the upper end surface of the support plate; a plurality of sword grids, both ends of which are respectively erected on the support cross bars, and the two ends of two adjacent sword grids are respectively connected by connecting steel wire ropes; a support spring, one end of which is fixedly connected to the support frame, and the other end is fixedly connected to the sword grid near the bottom of the support plate; a power device for driving the sword grid to move is fixedly installed on both sides of the inner wall of the support frame; symmetrically arranged moving grooves are opened on the side walls of the sword grid, and a slag cleaning device for cleaning the slag on both sides of the sword grid is provided on the moving groove.

[0006] Furthermore, the power device includes: screw rods, which are arranged in two groups, each group consisting of two, and arranged up and down, the threads of the two screw rods in the same group are opposite, and gears are fixed on the screw rods, and the gears on the two screw rods in the same group are meshed, and one end of the two groups of screw rods are respectively inserted into the support frame away from the support plate, and the screw rods with the same thread direction in the two groups are connected by a transmission belt; a power motor is fixedly installed on the outer wall of the support frame, and the output shaft is fixedly connected to a screw rod in one of the groups; a support rod is movably inserted at the other end of the screw rod, and the other end is fixedly connected to the inner wall of the support frame below the support plate; the screw rods and support rods on both sides of the support frame pass through the two ends of the sword fence, and the screw rods are threadedly connected to the sword fence.

[0007] Furthermore, the diameter of the support rod is smaller than the diameter of the screw rod.

[0008] Furthermore, a guide groove is provided on the upper end surface of the supporting cross bar, and rolling balls are embedded at both ends of the lower end surface of the sword fence, and the rolling balls are rollingly installed in the guide groove.

[0009] Furthermore, the length of the connecting steel wire rope is an integer multiple of the pitch of the thread on the screw rod.

[0010] Furthermore, the slag cleaning device includes: a support shaft, which is movably inserted into the movable groove; gear I and gear II, which are movably mounted on the two ends of the support shaft respectively; a grinding disc, which is fixedly connected to the outer walls of gear I and gear II, and movably mounted on the support shaft; a rack I, which is fixedly mounted on the bottom end of one side of the sword fence and meshes with gear I; a rack II, which is fixedly mounted on the bottom end of the other side of the sword fence and meshes with gear II; a liquid storage bag, which is fixedly mounted on the side walls at both ends of the sword fence, and the other end is fixedly connected to the side wall of the adjacent sword fence, and the liquid storage bag is filled with transmission fluid; a telescopic bellows, which is arranged at a position close to the end of the sword fence in the movable groove, and the telescopic bellows is connected to the liquid storage bag through a connecting pipe.

[0011] Furthermore, a clamping slot is provided on the inner wall of the movable slot, and a plurality of guide blocks are equidistantly installed on the outer walls of the upper and lower sides of the telescopic bellows, and the guide blocks are slidably installed in the clamping slot.

[0012] Furthermore, rolling grooves are provided on the side walls on both sides of the sword grid, the thickness of the rolling grooves is the same as the thickness of gears I and II, the gears I and II are located in the rolling grooves, and the side walls of the grinding disc are in close contact with the side walls of the sword grid.

[0013] Furthermore, a plurality of mounting grooves are arranged in an array on the opposite side walls of the grinding disc, an elastic block is fixedly installed at the bottom end of the mounting groove, a permanent magnet block is fixedly connected to the elastic block, and the permanent magnet block is slidably installed in the mounting groove, and the gear I and gear II are gears with the same diameter but different numbers of teeth.

[0014] Furthermore, the permanent magnets on the two opposite grinding discs generate magnetic forces that repel each other.

[0015] This application has the following beneficial effects:

[0016] 1. The present application provides a plate cutting machine for the production of special mining vehicles. The fixed sword grid is changed into a mobile type, and a support plate and a ball bearing are provided at the loading position. When the plate is loaded, one end of the plate is placed on the sword grid, and the other end of the plate is placed on the ball bearing. The sword grid that leaks out of the support plate is driven by a power device to move, thereby driving the plate to a fixed position, preventing sliding friction between the plate and the tip of the sword grid, thereby preventing the plate from being scratched by the tip of the sword grid.

[0017] 2. The present application provides a plate cutting machine for the production of special mining vehicles. When the sword fence is retracted, the sword fence squeezes the liquid storage bag, so that the transmission fluid in the liquid storage bag enters the telescopic bellows, pushing the support shaft, gear I, gear II and grinding disk to move, and the gear I, gear II and grinding disk on the support shaft rotate. The rotating grinding disk grinds and cleans the slag condensed on the side wall of the sword fence, thereby preventing a large amount of slag from condensing on the side wall of the sword fence and affecting the falling of the slag during subsequent cutting.

[0018] 3. The present application provides a plate cutting machine for the production of special mining vehicles. Through the different rotation speeds of gear I and gear II, the permanent magnet blocks on the two grinding discs intermittently squeeze the elastic blocks. Under the action of the elastic force of the elastic blocks, the elastic blocks push the permanent magnet blocks to intermittently strike the sword grid, thereby causing the sword grid to vibrate. When the sword grid and the plate are condensed together by slag, the vibrating sword grid can fall off the plate, thereby preventing the plate cut on the sword grid from being difficult to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0020] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 A cross-sectional view of the present invention from a middle position;

[0023] Figure 3 is a cross-sectional view of the support frame of the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified view of the local structure at center A;

[0025] Figure 5 This is a schematic diagram of the structure of a portion of the sword grid of the present invention;

[0026] Figure 6 This is a schematic diagram of the installation of the sword grid and the slag cleaning device of the present invention;

[0027] Figure 7 It is a cross-sectional view of the grinding disc of the present invention.

[0028] In the figure: 1. Support frame; 101. Support cross bar; 102. Support plate; 103. Ball; 104. Support spring; 105. Guide groove; 2. Gantry; 3. Laser cutting device; 4. Sword fence; 401. Connecting wire rope; 402. Moving groove; 5. Power device; 501. Screw; 502. Power motor; 503. Support rod; 504. Transmission belt; 6. Slag cleaning device; 601. Support shaft; 602. Gear I; 603. Gear II; 604. Grinding disc; 605. Rack I; 606. Rack II; 607. Liquid storage capsule; 608. Telescopic bellows; 609. Connecting pipe; 610. Slot; 611. Guide block; 612. Mounting slot; 613. Elastic block; 614. Permanent magnet block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example 1

[0030] See also Figure 1-Figure 3 A plate cutting machine for the production of special vehicles in mines includes a support frame 1, a gantry 2, a laser cutting device 3 and a sword fence 4. Support cross bars 101 are fixedly installed on both sides of the inner wall of the support frame 1, and linear guide rails are provided on both sides of the support frame 1. The gantry 2 is fixedly connected to the linear guide rails. The gantry 2 is laterally arranged above the support frame 1, and the gantry 2 is provided with a laser cutting device 3 that can move laterally along the gantry 2. Several laterally arranged sword fences 4 are provided on the support cross bar 101, and the two ends of the sword fence 4 are respectively arranged on the support cross bars 101 on both sides.

[0031] See also Figure 1-Figure 5A support plate 102 is fixedly installed above one end of the support frame 1, and a number of balls 103 are embedded in the upper end surface of the support plate 102. The upper end surface of the support cross bar 101 below the support plate 102 is lower than the upper end surface of the support cross bar 101 not below the support plate 102. A number of parallel sword grids 4 are provided on the support cross bar 101, and a number of support springs 104 are fixedly connected to the sword grid 4 near the bottom of the support plate 102. The other end of the support spring 104 is fixedly connected to the support frame 1, and the two ends of the two adjacent sword grids 4 are connected by connecting steel wire ropes 401 respectively. A power device 5 for driving the sword grid 4 to move is fixedly installed on both sides of the inner wall of the support frame 1.

[0032] See also Figure 2-Figure 5 The power device 5 includes a screw rod 501, a power motor 502, a support rod 503 and a transmission belt 504. Two groups of screw rods 501 are inserted on the support frame 1 away from the support plate 102. Each group of screw rods 501 has two screw rods 501, which are arranged up and down. The threads of the two screw rods 501 in the same group are opposite. A gear is fixed on the screw rod 501. The gears on the two screw rods 501 in the same group are engaged. The power motor 502 is fixedly installed on the outer wall of the support frame 1. The output shaft of the power motor 502 is fixedly connected to one of the screw rods 501 in one group. The screw rods 501 with the same thread direction in the two groups of screw rods 501 are connected through a transmission belt 504. Please refer to Figure 4 When the cutting tool 102 is cut off, the cutting tool 102 is cut off, and the cutting tool 102 is cut off from the cutting tool 102. The cutting tool 102 is cut off from the cutting tool 102 and the cutting tool 102 is cut off.

[0033] The diameter of the support rod 503 is smaller than the diameter of the screw rod 501 , so that when the sword fence 4 falls off from the screw rod 501 , it is convenient for the sword fence 4 to slide onto the support rod 503 .

[0034] See also Figure 4The upper end surface of the supporting cross bar 101 is provided with a guide groove 105, and rolling balls are embedded at both ends of the lower end surface of the sword fence 4, and the rolling balls are rolled and installed in the guide groove 105; the sliding friction between the sword fence 4 and the supporting cross bar 101 is changed to rolling friction, thereby reducing the friction between the sword fence 4 and the supporting cross bar 101.

[0035] The length of the connecting wire rope 401 is an integral multiple of the pitch of the thread on the screw rod 501. When the connecting wire rope 401 pulls the subsequent sword fence 4 from the support rod 503 to slide onto the screw rod 501, the thread on the screw rod 501 can immediately drive the subsequent sword fence 4 to move.

[0036] The working principle of the first embodiment of the present invention is as follows:

[0037] See also Figure 1-Figure 5 When the plate is placed on the laser cutting machine, one end of the plate is placed on the sword fence 4 that is not at the lower end of the support plate 102, and the other part of the plate is placed above the ball 103 on the support plate 102. At this time, the sword fence 4 that is not below the support plate 102 is driven by the power device 5 to move on the support cross bar 101, so that the sword fence 4 that is not below the support plate 102 drives the plate to move below the laser cutting device 3. The moving sword fence 4 drives the adjacent sword fence 4 to move through the connecting wire rope 401, so that the sword fence 4 is exposed from under the support plate 102, thereby supporting the plate. During this process, the plate does not slide relative to the tip of the sword fence 4, thereby preventing the plate from being scratched by the tip of the sword fence 4. Example 2

[0038] The second embodiment is a further improvement on the basis of the first embodiment.

[0039] The difference from the first embodiment is that, please refer to Figure 5 and Figure 6, a symmetrically arranged moving groove 402 is opened on the side wall of the sword fence 4, and a slag cleaning device 6 is provided on the moving groove 402 for cleaning the slag on both sides of the sword fence 4, and the slag cleaning device 6 includes a support shaft 601, a gear I 602, a gear II 603, a grinding disc 604, a rack I 605, a rack II 606, a liquid storage capsule 607, a telescopic bellows 608 and a connecting pipe 609, and the support shaft 601 is movably inserted into the moving groove 402, and the two ends of the support shaft 601 extend out of the moving groove 402, and the two ends of the support shaft 601 are movably sleeved with gears I 602 and gear II 603, and the outer walls of gears I 602 and gear II 603 are fixedly connected with a grinding disc 604, and the grinding disc 604 is movably sleeved on the support shaft 601, and the bottom end of one side of the sword fence 4 is fixedly installed with a rack I 605, rack I 605 is engaged with gear I 602, and a rack II 606 is fixedly installed at the bottom end of the other side of the sword fence 4, and the rack II 606 is engaged with the gear II 603. Liquid storage capsules 607 are fixedly installed on the side walls at both ends of the sword fence 4, and the other end of the liquid storage capsule 607 is fixedly connected to the side wall of the adjacent sword fence 4. The liquid storage capsule 607 is filled with transmission fluid. A telescopic bellows 608 is provided at a position near the end of the movable groove 402 near the sword fence 4. One end of the telescopic bellows 608 is fixedly connected to the side wall of the movable groove 402, and the other end of the telescopic bellows 608 is fixedly connected to the support shaft 601. The telescopic bellows 608 is connected to the liquid storage capsule 607 through a connecting pipe 609. The telescopic bellows 608 is made of stainless steel and will not expand in the lateral direction. The telescopic bellows 608 is preferably telescopic in the longitudinal direction.After the cutting is completed, when the power device 5 drives the sword fence 4 back to the bottom of the support plate 102, the distance between the two adjacent sword fences 4 is reduced, thereby squeezing the liquid storage capsule 607 between the two adjacent sword fences 4, so that the transmission fluid in the liquid storage capsule 607 enters the telescopic bellows 608 through the connecting pipe 609, and the telescopic bellows 608 is extended (when the sword fences 4 return to the initial position, that is, when the distance between the two sword fences 4 is the smallest, the volume of the transmission fluid squeezed out of the liquid storage capsule 607, after entering the telescopic bellows 608, makes the telescopic bellows 608 extend to the same length as the moving groove 402, ensuring that it can cover the entire length of the sword fence). The extended telescopic bellows 608 pushes the support shaft 601 to move in the moving groove 402, thereby causing the support shaft 601 to drive the gear I 602, gear II 603 and grinding disc 604 to move. 5 meshes, gear II 603 meshes with rack II 606, and gear I 602 and gear II 603, which move with the support shaft 601, drive the grinding disc 604 to rotate. (The driving force for the extension of the telescopic bellows 608 is the squeezing force of the two sword fences 4 on the liquid reservoir 607. The squeezing force of the two sword fences 4 on the liquid reservoir 607 comes from the torque of the power motor 502 on the screw rod 501. The screw rod 501 drives the sword fences 4 closer together, thereby squeezing the liquid reservoir 607, allowing the transmission fluid in the liquid reservoir 607 to enter the telescopic bellows 608. The torque of the power motor 502 on the screw rod 501 is large enough to drive the grinding disc 604 to rotate through the extension of the telescopic bellows 608.) The rotating grinding disc 604 grinds the side walls of the sword fence 4, thereby grinding away the slag on the side walls of the sword fence 4, thereby preventing excessive slag from condensing on the side walls of the sword fence 4 and affecting the slag's drop during subsequent cutting.

[0040] See also Figure 6 A card slot 610 is provided on the inner wall of the movable groove 402, and a number of guide blocks 611 are equidistantly installed on the outer walls on the upper and lower sides of the telescopic bellows 608. The guide blocks 611 are slidably installed in the card slot 610; when the telescopic bellows 608 expands, the expanded telescopic bellows 608 can expand along the direction of the card slot 610 to prevent the telescopic bellows 608 from being skewed.

[0041] The side walls on both sides of the sword fence 4 are provided with rolling grooves, the thickness of which is the same as that of gear I 602 and gear II 603 . Gear I 602 and gear II 603 are located in the rolling grooves, and the side walls of the grinding disc 604 are in close contact with the side walls of the sword fence 4 .

[0042] See also Figure 6 and Figure 7, a plurality of mounting grooves 612 are arranged in an array on the opposite side walls of the grinding disc 604, and an elastic block 613 is fixedly installed at the bottom end of the mounting groove 612, and a permanent magnet block 614 is fixedly connected to the elastic block 613, and the permanent magnet block 614 is slidably installed in the mounting groove 612, and the outer wall of the permanent magnet block 614 is flush with the side wall of the grinding disc 604. Gear I 602 and gear II 603 are gears with the same diameter but different numbers of teeth; in the process of gear I 602 and gear II 603 being driven to rotate by rack I 605 and rack II 606, the speed of gear I 602 and gear II 603 is different, that is, the speed of gear I 602 and gear II 603 is different from that of gear I The rotation speeds of the grinding discs 604 fixedly connected to gear II 603 are different. When the permanent magnet blocks 614 on the two relative grinding discs 604 are opposite to each other, the magnetic repulsion of the permanent magnet block 614 pushes the permanent magnet block 614 to squeeze the elastic block 613. When the rotation speeds of the two grinding discs 604 are different and the permanent magnet blocks 614 on the two grinding discs 604 are not facing each other, the magnetic repulsion of the permanent magnet block 614 disappears. Under the action of the elastic force of the elastic block 613, the permanent magnet block 614 is pushed to hit the side wall of the sword grid 4, causing the sword grid 4 to vibrate, preventing the sword grid 4 and the upper plate from being adhered to by slag, thereby preventing the plate on the sword grid 4 from being difficult to fall off.

[0043] The permanent magnets 614 on the two opposing grinding discs 604 generate a mutually repelling magnetic force. When the permanent magnets 614 on the two grinding discs 604 face each other, the magnetic repulsion of the permanent magnets 614 pushes the permanent magnets 614 against the elastic blocks 613. When the two grinding discs 604 rotate at different speeds, the magnetic repulsion disappears, and the elastic force of the elastic blocks 613 pushes the permanent magnets 614 against the sidewalls of the sword grid 4, causing the sword grid 4 to vibrate, preventing the sword grid 4 and the upper plate from being adhered to by slag, thereby preventing the plate from falling off the sword grid 4.

[0044] The working principle of the second embodiment of the present invention is as follows:

[0045] See also Figure 1-Figure 7 After the cutting is completed, when the power device 5 drives the sword fence 4 back to the bottom of the support plate 102, the distance between the two adjacent sword fences 4 is reduced, thereby squeezing the liquid storage bag 607 between the two adjacent sword fences 4, so that the transmission fluid in the liquid storage bag 607 enters the telescopic bellows 608 through the connecting pipe 609, and the telescopic bellows 608 is extended. The extended telescopic bellows 608 pushes the support shaft 601 to move in the movable groove 402, so that the support shaft 601 drives the gear Gear I602, gear II603 and grinding disc 604 move. Since gear I602 is meshed with rack I605 and gear II603 is meshed with rack II606, gear I602 and gear II603 moving with support shaft 601 drive grinding disc 604 to rotate. The rotating grinding disc 604 grinds the side wall of sword fence 4, thereby grinding away the slag on the side wall of sword fence 4, thereby preventing a large amount of slag from condensing on the side wall of sword fence 4 and affecting the falling of slag during subsequent cutting.

[0046] When gear I 602 and gear II 603 are driven to rotate by rack I 605 and rack II 606, the rotational speeds of gear I 602 and gear II 603 are different, that is, the rotational speeds of the grinding discs 604 fixedly connected to gear I 602 and gear II 603 are different. When the permanent magnets 614 on the two opposite grinding discs 604 are opposite to each other, the magnetic repulsion of the permanent magnets 614 pushes the permanent magnets 614 to squeeze the elastic blocks 613. When the rotational speeds of the two grinding discs 604 are different and the permanent magnets 614 on the two grinding discs 604 are not directly opposite, the magnetic repulsion of the permanent magnets 614 disappears. Under the action of the elastic force of the elastic blocks 613, the permanent magnets 614 are pushed to hit the side walls of the sword fence 4, causing the sword fence 4 to vibrate, thereby preventing the sword fence 4 and the upper plate from being adhered to by slag, thereby preventing the plate on the sword fence 4 from being difficult to fall off.

Claims

1. A plate cutting machine for producing special vehicles for mining, comprising a support frame (1), a gantry frame (2), a laser cutting device (3) and a sword fence (4), wherein support cross bars (101) are fixedly mounted on both sides of the inner wall of the support frame (1), and characterized in that: The support frame (1) is provided with: A support plate (102) is fixedly mounted above one end of the support frame (1), and a plurality of balls (103) are embedded on the upper end surface of the support plate (102); A plurality of sword fences (4), both ends of which are respectively mounted on a supporting crossbar (101), and both ends of two adjacent sword fences (4) are connected by connecting steel wire ropes (401); A support spring (104), one end of which is fixedly connected to the support frame (1), and the other end of which is fixedly connected to the sword grid (4) below the support plate (102); A power device (5) for driving the sword grid (4) to move is fixedly installed on both sides of the inner wall of the support frame (1); A symmetrically arranged moving groove (402) is provided on the side wall of the sword grid (4), and a slag cleaning device (6) for cleaning the slag on both sides of the sword grid (4) is provided on the moving groove (402); The power device (5) comprises: screw rods (501), which are arranged in two groups, each group having two screw rods, and arranged in an upper and lower direction; the screw rods (501) in the same group have opposite threads; a gear is fixed on the screw rod (501); the gears on the two screw rods (501) in the same group are meshed; one end of the screw rods (501) in the two groups is respectively inserted into a support frame (1) away from the support plate (102); the screw rods (501) in the two groups with the same thread direction are connected by a transmission belt (504); A power motor (502) is fixedly mounted on the outer wall of the support frame (1), and an output shaft is fixedly connected to a screw rod (501) in one group; A support rod (503) is movably inserted into the other end of the screw rod (501), and the other end is fixedly connected to the inner wall of the support frame (1) below the support plate (102); The screw rods (501) and support rods (503) on both sides of the support frame (1) pass through both ends of the sword fence (4), and the screw rods (501) are threadedly connected to the sword fence (4); The length of the connecting steel wire rope (401) is an integer multiple of the pitch of the thread on the screw rod (501).

2. The plate cutting machine for producing special mining vehicles according to claim 1, characterized in that: The diameter of the support rod (503) is smaller than the diameter of the screw rod (501).

3. The plate cutting machine for producing special mining vehicles according to claim 1, characterized in that: A guide groove (105) is provided on the upper end surface of the support crossbar (101), and rolling balls are embedded at both ends of the lower end surface of the sword fence (4), and the rolling balls are rollingly installed in the guide groove (105).

4. The plate cutting machine for producing special mining vehicles according to claim 1, characterized in that: The slag cleaning device (6) comprises: A support shaft (601) is movably inserted into the movable groove (402); Gear I (602) and gear II (603) are movably mounted on both ends of the support shaft (601); A grinding disc (604) is fixedly connected to the outer side walls of gear I (602) and gear II (603), and is movably sleeved on the support shaft (601); Rack I (605), fixedly mounted on the bottom end of one side of the sword fence (4), and meshing with gear I (602); Rack II (606), fixedly mounted on the bottom end of the other side of the sword fence (4), and meshing with gear II (603); A liquid storage capsule (607) has one end fixedly mounted on the side walls at both ends of the sword fence (4) and the other end fixedly connected to the side wall of the adjacent sword fence (4), wherein the liquid storage capsule (607) is filled with transmission fluid; The telescopic bellows (608) is arranged at a position of the movable groove (402) close to the end of the sword fence (4), and the telescopic bellows (608) is connected to the liquid storage bag (607) through a connecting pipe (609).

5. The plate cutting machine for producing special mining vehicles according to claim 4, characterized in that: A clamping groove (610) is provided on the inner wall of the movable groove (402), and a plurality of guide blocks (611) are equidistantly installed on the outer walls of the upper and lower sides of the telescopic bellows (608), and the guide blocks (611) are slidably installed in the clamping groove (610).

6. The plate cutting machine for producing special mining vehicles according to claim 4, characterized in that: The side walls on both sides of the sword fence (4) are provided with rolling grooves, the thickness of the rolling grooves being the same as the thickness of the gear I (602) and the gear II (603), the gear I (602) and the gear II (603) being located in the rolling grooves, and the side walls of the grinding disc (604) being in close contact with the side walls of the sword fence (4).

7. The plate cutting machine for producing special mining vehicles according to claim 4, characterized in that: A plurality of mounting grooves (612) are arranged in an array on opposite side walls of the grinding disc (604), an elastic block (613) is fixedly mounted at the bottom end of the mounting groove (612), a permanent magnet block (614) is fixedly connected to the elastic block (613), and the permanent magnet block (614) is slidably mounted in the mounting groove (612), and the gear I (602) and the gear II (603) are gears with the same diameter but different numbers of teeth.

8. The plate cutting machine for producing special mining vehicles according to claim 7, characterized in that: The permanent magnets (614) on the two opposing grinding discs (604) generate a magnetic force that repels each other.

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