Cutting device for semitrailer manufacturing

Abstract

The invention discloses a cutting device for semitrailer manufacturing, and relates to the technical field of semitrailer cutting, the cutting device comprises a bottom plate, a shell is fixedly mounted at the top of the bottom plate, a cutting machine is arranged at the top of the bottom plate, a sliding rail is fixedly mounted at the top of the bottom plate, and a first driving device is arranged at the top of the sliding rail; the fixing block is fixedly installed at the top of the first driving device, the circular base is fixedly installed at the top of the fixing block, the second driving device is arranged at the top of the fixing block, the reset telescopic rod is fixedly installed at the top of the second driving device, and the fixing rod is fixedly installed on the face, close to the second driving device, of the circular base. The rotating rod is rotationally installed on the circumferential face of the fixing rod, the rolling wheel rotates to make contact with a workpiece and exert pressure on the workpiece to fix the position of the workpiece, the situation that cutting is affected due to the fact that the position of the workpiece moves when the cutting machine conducts cutting is prevented, and defective products are reduced during cutting.

Description

Technical Field

[0001] The invention relates to the technical field of semitrailer cutting, in particular to a cutting device for manufacturing semitrailers. Background Art

[0002] The cutting device in semi-trailer manufacturing is mainly used to process and cut various materials such as steel plates, aluminum plates, etc. in order to manufacture body structures, chassis, frames and other parts.

[0003] The patent with patent announcement number CN210208839U relates to a flat steel cutting device for a standard box semi-trailer, including a frame body, the left and right ends of the frame body are movably connected with a rotating shaft, the middle part of the rotating shaft is connected with a transmission chain through a gear, the right end of the frame body is fixedly installed with a support seat, the front end part of the upper surface of the support seat is fixedly installed with a driving motor, the lower end of the driving motor is fixedly installed with a lead screw, a sliding seat is movably sleeved on the lead screw, the front end part of the right side of the sliding seat is provided with a first motor, the left end of the first motor is fixedly sleeved with a cutting knife, a connecting seat is fixedly installed in the middle part of the rear surface of the frame body, a second motor is fixedly installed in the middle part of the rear end surface of the connecting seat, and a swing plate is fixedly installed at the output end of the second motor. The flat steel cutting device for the standard box semi-trailer moves the flat steel by cooperating with the first card slot through a limit pin, thereby improving the efficiency and quality of flat steel cutting.

[0004] In the above patent, the flat steel is moved by cooperating with the limit pin and the first slot, thereby improving the efficiency and quality of flat steel cutting. However, when cutting the round tube-shaped components in the semi-trailer, it is necessary to fix the position of the workpiece and adjust the clamping force according to the material of the workpiece. Excessive pressure may cause deformation of part of the workpiece, resulting in damage to the workpiece and inability to complete the processing, causing property loss. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cutting device for manufacturing a semi-trailer, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A cutting device for manufacturing a semi-trailer, comprising a bottom plate, a housing is fixedly installed on the top of the bottom plate, a cutting machine is arranged on the top of the bottom plate, a slide rail is fixedly installed on the top of the bottom plate, a driving device 1 is arranged on the top of the slide rail, and a positioning device, an anti-skid device and a supporting device are arranged on the top of the bottom plate; Wherein, the positioning device comprises: a fixed block, a circular seat, a second driving device, a reset telescopic rod, a transmission ring, a fixed rod, a rotating rod, a roller, a limit rod and a limit groove, wherein the fixed block is fixedly installed on the top of the first driving device, the circular seat is fixedly installed on the top of the fixed block, the second driving device is arranged on the top of the fixed block, the reset telescopic rod is fixedly installed on the top of the second driving device, the fixed rod is fixedly installed on a side of the circular seat close to the second driving device, the rotating rod is rotatably installed on the circumferential surface of the fixed rod, the transmission ring is rotatably installed on a side of the rotating rod away from the circular seat, the free end of the reset telescopic rod is rotatably installed on the circumferential surface of the transmission ring, the roller is slidably installed on an end of the rotating rod away from the fixed rod, the limit rod slides through the inner wall of the rotating rod, the limit groove is arranged on the circumferential surface of the fixed rod, the roller moves to drive the limit rod to move in the direction of the fixed rod, the limit rod moves to contact with the limit groove and is stuck in the inside of the limit groove, after the limit rod is stuck in the limit groove, the limit groove limits the limit rod, so that the rotating rod cannot rotate on the circumferential surface of the fixed rod.

[0007] According to the above technical solution, a No. 1 spring is arranged between the limit rod and the rotating rod, and the roller is in contact with the limit rod, and the limit rod is reset by the No. 1 spring.

[0008] According to the above technical scheme, the anti-slip device includes: a support rod, a hollow circular ring, a long rod, a collar, an embedded plate, a friction slider, a baffle, a blocking arc block, a square plate and a triangular block. The support rod is fixedly installed on the top of the driving device one, the hollow circular ring is fixedly installed on the top of the support rod, the long rod is fixedly penetrated through the inner and outer walls of the transmission ring, the collar is fixedly installed on the inner wall of the hollow circular ring, the embedded plate is slidably installed on the inner wall of the hollow circular ring, one end of the long rod is slidably installed on a side of the circular seat close to the fixed rod, and the other end of the long rod is fixedly installed on a side of the embedded plate away from the circular seat, the friction slider is slidably installed on the inner wall of the embedded plate, the baffle is fixedly installed between the embedded plate and the collar, the blocking arc block is fixedly installed between the baffle and the embedded plate, the square plate is fixedly installed on the surface of the friction slider, and the triangular block is fixedly installed between the square plate and the friction slider. After the triangular block moves, it no longer contacts the direction groove, and then the square plate is driven to move in the direction of the collar by the No. 2 spring reset. The movement of the square plate will drive the friction slider to move in the direction of the collar, and the friction slider no longer contacts the workpiece after moving.

[0009] According to the above technical solution, a No. 2 spring is arranged between the square plate and the embedded plate, the friction slider contacts the blocking arc block, and the No. 2 spring drives the square plate to reset.

[0010] According to the above technical solution, a square groove is provided between the hollow circular ring and the sleeve ring, and the triangular block contacts the square groove, and the triangular block is released from the limit through the square groove.

[0011] According to the above technical solution, the supporting device includes: a hollow box, a top plate, an L-shaped rod, a telescopic connecting rod, a sliding plate, an elastic telescopic rod, a supporting vertical rod, an arc-shaped rod 1 and an arc-shaped rod 2. The hollow box is fixedly installed on the top of the driving device 1, the top plate is fixedly installed on the top of the hollow box, the L-shaped rod slides through the inner and outer walls of the hollow ring and the inner plate, the sliding plate is slidably installed on the inner wall of the hollow box, the telescopic connecting rod is fixedly installed on the top of the hollow box, the free end of the telescopic connecting rod is fixedly installed on the inner and outer walls of the sliding plate, one end of the L-shaped rod is rotatably installed on the top of the telescopic connecting rod, and the L The other end of the arc rod slides through the inner and outer walls of the blocking arc block, the elastic telescopic rod is fixedly installed on the bottom of the inner wall of the hollow box, the free end of the elastic telescopic rod is fixedly installed on the bottom of the sliding plate, the supporting vertical rod is fixedly installed on the top of the sliding plate, the arc rod one is fixedly installed on the top of the supporting vertical rod, a No. 3 spring is arranged on the top of the arc rod one, the arc rod two is connected to the arc rod one through the No. 3 spring, the movement of the arc rod one to the top will drive the No. 3 spring to the top, the movement of the No. 3 spring to the top will drive the arc rod two to the top, and the movement of the arc rod two to the top will contact the cutting machine.

[0012] According to the above technical solution, the supporting device also includes: a transmission rod, an inclined surface block and an arc surface block. The transmission rod slides through the inner wall of the supporting vertical rod, the inclined surface block is slidably installed on the inner wall of the hollow box, and the arc surface block is fixedly installed on a side of the telescopic connecting rod close to the inclined surface block. The arc rod 2 moves toward the bottom and contacts with the transmission rod. The arc rod 2 moves toward the bottom and drives the transmission rod to move toward the bottom. The transmission rod moves toward the bottom and contacts with the inclined surface block. The transmission rod moves toward the bottom and drives the inclined surface block to move in the direction of the telescopic connecting rod.

[0013] According to the above technical solution, the inclined surface block contacts the arc surface block, and a No. 4 spring is arranged inside the telescopic connecting rod, and the free end of the telescopic connecting rod is driven to reset by the No. 4 spring.

[0014] The present invention provides a cutting device for manufacturing a semitrailer, which has the following beneficial effects: (1) The invention, through the rotation of the roller, contacts the workpiece and applies pressure to the workpiece to fix the position of the workpiece, thereby preventing the position of the workpiece from moving when the cutting machine is cutting, which would affect the cutting and cause the contact angle between the cutting tool and the steel pipe to be unstable, thereby producing an irregular or inclined cutting surface, reducing the occurrence of defective products during cutting, and after the limit rod is inserted into the limit groove, the limit groove limits the limit rod, so that the rotating rod cannot rotate on the circumferential surface of the fixed rod. After the workpiece is fixed, no pressure is applied to the workpiece without hindering the clamping force, thereby preventing excessive pressure from being applied when clamping workpieces made of special materials, which would cause the material to deform, resulting in non-compliance with construction or design requirements, and possibly requiring secondary processing, thereby reducing additional working hours and costs.

[0015] (2) The invention, by moving the friction slider in the direction of the collar when rotating, the friction slider moves through the square groove and contacts the workpiece, so that when the cutting machine is cutting the workpiece, the workpiece will reverse due to the large friction resistance between the blade and the workpiece. The reversal of the workpiece will cause the cutting tool to need to be adjusted multiple times or cut more slowly, making it difficult to ensure the cutting accuracy, thereby improving the precision of the device when cutting. After the friction slider moves, it no longer contacts the workpiece, so that after the cutting is completed, the contact relationship between the device and the workpiece will change simultaneously with the clamping state and the unclamping state of the positioning device on the workpiece, which will not hinder the normal processing of the workpiece and improve the portability of the device.

[0016] (3) The invention, through the movement of the arc rod 2 toward the top, will contact the cutting machine, so that when the cutting machine rotates toward the bottom and completes the cutting, the residual stress generated when the workpiece is cut will not act on the cutting machine itself, preventing the residual stress from causing the cutting machine to rotate rapidly toward the bottom at a small angle after cutting, causing the blade to reverse and contact the workpiece when the cutting machine is reset, causing damage to the blade and affecting subsequent cutting, reducing the loss of the device and extending its service life. The movement of the inclined block will drive the arc block to move toward the bottom, and the movement of the arc block to the bottom will drive the free end of the telescopic connecting rod to move toward the bottom, so that after the cutting machine completes the cutting, the device will no longer contact the cutting machine, will not hinder the normal transportation and movement of the cutting machine, and improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention; Figure 3 It is a structural schematic diagram of the positioning device of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the transmission ring of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating rod of the present invention; Figure 6 It is a schematic structural diagram of the anti-skid device of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the hollow ring of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the hollow box of the present invention.

[0018] In the figure: 1, bottom plate; 2, housing; 3, cutting machine; 4, slide rail; 5, driving device 1; 61, fixed block; 62, circular seat; 63, driving device 2; 64, resetting telescopic rod; 65, transmission ring; 66, fixed rod; 67, rotating rod; 68, roller; 69, limiting rod; 610, limiting groove; 71, supporting rod; 72, hollow circular ring; 73, long rod; 74, sleeve ring; 75, inner plate ; 76. Spring No. 2; 77. Friction slider; 78. Baffle; 79. Blocking arc block; 710. Square plate; 711. Triangular block; 81. Hollow box; 82. Top plate; 83. L-shaped rod; 84. Telescopic connecting rod; 85. Sliding plate; 86. Elastic telescopic rod; 87. Support vertical rod; 88. Arc rod one; 89. Arc rod two; 810. Transmission rod; 811. Inclined block; 812. Arc block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5One embodiment of the present invention is: a cutting device for manufacturing a semi-trailer, comprising a bottom plate 1, a housing 2 is fixedly installed on the top of the bottom plate 1, a cutting machine 3 is arranged on the top of the bottom plate 1, a slide rail 4 is fixedly installed on the top of the bottom plate 1, a driving device 1 5 is arranged on the top of the slide rail 4, and a positioning device is arranged on the top of the bottom plate 1, the positioning device comprises: a fixed block 61, a circular seat 62, a driving device 2 63, a reset telescopic rod 64, a transmission ring 65, a fixed rod 66, a rotating rod 67, a roller 68, a limiting rod 69 and a limiting groove 610, the fixed block 61 is fixedly installed on the top of the driving device 1 5, the circular seat 62 is fixedly installed on the top of the fixed block 61, the driving device 2 63 is arranged on the top of the fixed block 61, the reset telescopic rod 64 is fixedly installed on the top of the driving device 2 63, the fixed rod 66 is fixedly installed on a side of the circular seat 62 close to the driving device 2 63, and the rotating rod 67 is rotatably installed on the fixed block 61. The transmission ring 65 is rotatably mounted on the circumferential surface of the fixed rod 66, and the transmission ring 65 is rotatably mounted on the side of the rotating rod 67 away from the circular seat 62. The free end of the resetting telescopic rod 64 is rotatably mounted on the circumferential surface of the transmission ring 65. The roller 68 is slidably mounted on the end of the rotating rod 67 away from the fixed rod 66 to prevent the position of the workpiece from moving during cutting by the cutting machine 3, thereby affecting the cutting, causing an unstable contact angle between the cutting tool and the steel pipe, thereby producing an irregular or inclined cutting surface, reducing the occurrence of defective products during cutting, and the limiting rod 69 slides through the inner wall of the rotating rod 67, and the limiting groove 610 is opened on the circumferential surface of the fixed rod 66. Without hindering the clamping force, no pressure is applied to the workpiece after the workpiece is fixed, preventing excessive pressure from being applied when clamping workpieces of special materials, which may cause deformation of the material, resulting in non-compliance with construction or design requirements, and may require secondary processing, thereby reducing additional working hours and costs.

[0021] A spring No. 1 is arranged between the limit rod 69 and the rotating rod 67 , and the roller 68 is in contact with the limit rod 69 , and the limit rod 69 is reset by the spring No. 1.

[0022] When this embodiment is working: the workpiece is placed inside the housing 2, and the driving device 1 5 is started. The driving device 1 5 moves to drive the fixed block 61 to move in the direction of the cutting machine 3. The fixed block 61 moves to drive the circular seat 62 to move in the direction of the cutting machine 3. The circular seat 62 moves to drive the fixed rod 66 to move in the direction of the cutting machine 3. The fixed rod 66 moves to drive the rotating rod 67 to move in the direction of the cutting machine 3. The rotating rod 67 moves to drive the transmission ring 65 to move in the direction of the cutting machine 3. Then the driving device 2 63 is started. The driving device 2 63 moves to drive the reset telescopic rod 64 to move in the direction of the cutting machine 3. The reset telescopic rod 64 moves to drive the transmission ring 65 to rotate. The rotation of the transmission ring 65 will drive the rotating rod 67 to rotate. The rotation of the rotating rod 67 will drive the roller 68 to rotate. The rotation of the roller 68 will contact the workpiece and apply pressure to the workpiece to fix the position of the workpiece to prevent the position of the workpiece from moving when the cutting machine 3 is cutting, thereby affecting the cutting. , resulting in an unstable contact angle between the cutting tool and the steel pipe, thereby producing an irregular or inclined cutting surface, reducing the occurrence of defective products during cutting. After the workpiece contacts the roller 68, as the rotating rod 67 continues to rotate, the workpiece pushes the roller 68 to move in the direction of the rotating rod 67. The movement of the roller 68 will contact the limit rod 69. The movement of the roller 68 drives the limit rod 69 to move in the direction of the fixed rod 66. The movement of the limit rod 69 will contact the limit groove 610 and be stuck in the inside of the limit groove 610. After the limit rod 69 is stuck in the limit groove 610, the limit groove 610 limits the limit rod 69, so that the rotating rod 67 cannot rotate on the circumferential surface of the fixed rod 66. Without hindering the clamping force, no pressure is applied to the workpiece after the workpiece is fixed, preventing excessive pressure from being applied when clamping workpieces made of special materials, which may cause deformation of the material, resulting in non-compliance with construction or design requirements. Secondary processing may be required, reducing additional working hours and costs.

[0023] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, an anti-skid device and a supporting device are arranged on the top of the bottom plate 1, wherein the anti-skid device comprises: a supporting rod 71, a hollow circular ring 72, a long rod 73, a collar 74, an inner plate 75, a friction slider 77, a baffle 78, a blocking arc block 79, a square plate 710 and a triangular block 711, the supporting rod 71 is fixedly mounted on the top of the driving device 5, the hollow circular ring 72 is fixedly mounted on the top of the supporting rod 71, the long rod 73 is fixedly penetrated through the inner and outer walls of the transmission ring 65, the collar 74 is fixedly mounted on the inner wall of the hollow circular ring 72, the inner plate 75 is slidably mounted on the inner wall of the hollow circular ring 72, one end of the long rod 73 is slidably mounted on a side of the circular seat 62 close to the fixed rod 66, and the other end of the long rod 73 is fixedly mounted on a side of the inner plate 75 away from the circular seat 62, The slider 77 is slidably mounted on the inner wall of the inner panel 75, the baffle 78 is fixedly mounted between the inner panel 75 and the collar 74, and the blocking arc block 79 is fixedly mounted between the baffle 78 and the inner panel 75, so that when the cutting machine 3 is cutting the workpiece, the workpiece is reversed due to the large friction resistance between the blade and the workpiece. The reversal of the workpiece will cause the cutting tool to need to be adjusted multiple times or cut more slowly, making it difficult to ensure the cutting accuracy and improving the precision of the device during cutting. The square plate 710 is fixedly mounted on the surface of the friction slider 77, and the triangular block 711 is fixedly mounted between the square plate 710 and the friction slider 77, so that after the cutting is completed, the device will change the contact relationship between the device and the workpiece at the same time as the positioning device clamps and releases the workpiece, without hindering the normal processing of the workpiece, thereby improving the portability of the device.

[0024] A No. 2 spring 76 is provided between the square plate 710 and the inner plate 75 , and the friction slider 77 contacts the blocking arc block 79 , and the No. 2 spring 76 drives the square plate 710 to reset.

[0025] A square groove is provided between the hollow circular ring 72 and the sleeve ring 74 , and the triangular block 711 contacts the square groove, and the triangular block 711 is released from the limit position through the square groove.

[0026] The supporting device includes: a hollow box 81, a top plate 82, an L-shaped rod 83, a telescopic connecting rod 84, a sliding plate 85, an elastic telescopic rod 86, a supporting vertical rod 87, an arc rod 1 88 and an arc rod 2 89. The hollow box 81 is fixedly mounted on the top of the driving device 15, the top plate 82 is fixedly mounted on the top of the hollow box 81, the L-shaped rod 83 slides through the inner and outer walls of the hollow ring 72 and the inner plate 75, the sliding plate 85 is slidably mounted on the inner wall of the hollow box 81, the telescopic connecting rod 84 is fixedly mounted on the top of the hollow box 81, the free end of the telescopic connecting rod 84 is fixedly mounted on the inner and outer walls of the sliding plate 85, one end of the L-shaped rod 83 is rotatably mounted on the top of the telescopic connecting rod 84, the other end of the L-shaped rod 83 slides through the inner and outer walls of the blocking arc block 79, and the elastic telescopic rod 86 is fixedly mounted on the top of the hollow box 81. It is fixedly installed on the bottom of the inner wall of the hollow box 81, the free end of the elastic telescopic rod 86 is fixedly installed on the bottom of the sliding plate 85, the supporting vertical rod 87 is fixedly installed on the top of the sliding plate 85, the arc rod 1 88 is fixedly installed on the top of the supporting vertical rod 87, and a No. 3 spring is arranged on the top of the arc rod 1 88, and the arc rod 2 89 is connected to the arc rod 1 88 through the No. 3 spring, so that when the cutting machine 3 rotates toward the bottom and completes the cutting, the residual stress generated when the workpiece is cut will not act on the cutting machine 3 itself, preventing the residual stress from causing the cutting machine 3 to rotate rapidly toward the bottom at a small angle after cutting, causing the cutting machine 3 to reverse when the blade is reset and contact the workpiece, causing the blade to be damaged and affecting the subsequent cutting, thereby reducing the loss of the device and extending the service life.

[0027] The supporting device also includes: a transmission rod 810, a sloped block 811 and an arc block 812. The transmission rod 810 slides through the inner wall of the supporting vertical rod 87, the sloped block 811 is slidably installed on the inner wall of the hollow box 81, and the arc block 812 is fixedly installed on a side of the telescopic connecting rod 84 close to the sloped block 811, so that after the cutting machine 3 completes the cutting, the device no longer contacts the cutting machine 3, does not hinder the normal transportation and movement of the cutting machine 3, and improves the practicality of the device.

[0028] The inclined surface block 811 contacts the arc surface block 812 , and a No. 4 spring is arranged inside the telescopic connecting rod 84 , and the No. 4 spring drives the free end of the telescopic connecting rod 84 to reset.

[0029] The rotation of the transmission ring 65 drives the long rod 73 to rotate, and the rotation of the long rod 73 drives the inner plate 75 to rotate inside the hollow ring 72. The rotation of the inner plate 75 drives the friction slider 77 to rotate. The rotation of the friction slider 77 will contact the blocking arc block 79. Due to the arc design on the surface of the blocking arc block 79, the blocking arc block 79 will change the movement trajectory of the friction slider 77 when it rotates. The friction slider 77 moves in the direction of the collar 74 when rotating. The movement of the friction slider 77 will pass through the square groove and contact the workpiece, so that when the cutting machine 3 cuts the workpiece, the friction resistance between the blade and the workpiece is large, causing the workpiece to reverse. The reversal of the workpiece will cause the cutting tool to need to be adjusted multiple times or cut more slowly, making it difficult to ensure the cutting accuracy and improve the precision of the device when cutting. When the long rod 73 reverses, the rotation of the long rod 73 will drive the inner plate 75 in the hollow ring The internal rotation of 72 and the rotation of the embedded plate 75 drive the friction slider 77 to rotate. The rotation of the friction slider 77 will drive the triangular block 711 to rotate. The rotation of the triangular block 711 will contact the square groove. Since the surface of the triangular block 711 is designed as a slope, when the triangular block 711 contacts the square groove, the triangular block 711 will move in the direction close to the embedded plate 75. After the movement, the triangular block 711 will no longer contact the direction groove. Subsequently, the square plate 710 is reset by the No. 2 spring 76 to drive it to move in the direction of the ring 74. The movement of the square plate 710 will drive the friction slider 77 to move in the direction of the ring 74. After the movement, the friction slider 77 will no longer contact the workpiece, so that after the cutting is completed, the device will change the contact relationship between the device and the workpiece at the same time as the clamping state and the unclamping state of the positioning device on the workpiece, without hindering the normal processing of the workpiece, thereby improving the portability of the device.

[0030] The rotation of the friction slider 77 will contact the L-shaped rod 83, and the rotation of the friction slider 77 will drive the L-shaped rod 83 to move in the direction away from the baffle 78. The movement of the L-shaped rod 83 will drive the free end of the telescopic connecting rod 84 to move toward the top, and the free end of the telescopic connecting rod 84 to move toward the top will drive the sliding plate 85 to move toward the top, and the sliding plate 85 to move toward the top will drive the supporting vertical rod 87 to move toward the top, and the supporting vertical rod 87 to move toward the top will drive the arc rod 1 88 to move toward the top, and the arc rod 1 88 to move toward the top will drive the No. 3 spring to move toward the top, and the No. 3 spring to move toward the top will drive the arc rod 2 89 to move toward the top, and the arc rod 2 89 to move toward the top will contact the cutting machine 3, so that when the cutting machine 3 rotates toward the bottom and completes the cutting, the residual stress generated in the workpiece when the cutting is completed will not act on the cutting machine 3 itself, preventing the residual stress from causing the cutting machine 3 to rotate rapidly toward the bottom at a small angle after cutting, causing the blade of the cutting machine 3 to reverse and contact the workpiece when resetting, resulting in damage to the blade, affecting the subsequent cutting, reducing the loss of the device, and extending the service life. The arc rod 89 moves toward the bottom and contacts the transmission rod 810. The arc rod 89 moves toward the bottom and drives the transmission rod 810 to move toward the bottom. The transmission rod 810 moves toward the bottom and contacts the inclined surface block 811. The transmission rod 810 moves toward the bottom and drives the inclined surface block 811 to move toward the telescopic connecting rod 84. The inclined surface block 811 moves and contacts the arc surface block 812. The movement of the inclined surface block 811 drives the arc surface block 812 to move toward the bottom. The movement of the arc surface block 812 to the bottom drives the free end of the telescopic connecting rod 84 to move toward the bottom. The movement of the free end of the telescopic connecting rod 84 will drive the sliding plate 85 to move toward the bottom, the movement of the sliding plate 85 to the bottom will drive the supporting vertical rod 87 to move toward the bottom, the movement of the supporting vertical rod 87 to the bottom will drive the arc rod 1 88 to move toward the bottom, the movement of the arc rod 1 88 to the bottom will drive the third spring to move toward the bottom, the movement of the third spring to the bottom will drive the arc rod 2 89 to move toward the bottom, so that after the cutting machine 3 completes the cutting, the device no longer contacts the cutting machine 3, does not hinder the normal transportation and movement of the cutting machine 3, and improves the practicability of the device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for manufacturing a semitrailer, comprising a bottom plate (1), characterized in that: A housing (2) is fixedly mounted on the top of the base plate (1), a cutting machine (3) is arranged on the top of the base plate (1), a slide rail (4) is fixedly mounted on the top of the base plate (1), a driving device (5) is arranged on the top of the slide rail (4), and a positioning device, an anti-slip device and a supporting device are arranged on the top of the base plate (1); The positioning device comprises: a fixed block (61), a circular seat (62), a second driving device (63), a resetting telescopic rod (64), a transmission ring (65), a fixed rod (66), a rotating rod (67), a roller (68), a limiting rod (69) and a limiting groove (610), wherein the fixed block (61) is fixedly mounted on the top of the first driving device (5), the circular seat (62) is fixedly mounted on the top of the fixed block (61), the second driving device (63) is arranged on the top of the fixed block (61), the resetting telescopic rod (64) is fixedly mounted on the top of the second driving device (63), and the fixed rod ( The rotating rod (67) is rotatably mounted on the circumferential surface of the fixed rod (66); the transmission ring (65) is rotatably mounted on the side of the rotating rod (67) away from the circular seat (62); the free end of the reset telescopic rod (64) is rotatably mounted on the circumferential surface of the transmission ring (65); the roller (68) is slidably mounted on the end of the rotating rod (67) away from the fixed rod (66); the limiting rod (69) slidably penetrates the inner wall of the rotating rod (67); and the limiting groove (610) is provided on the circumferential surface of the fixed rod (66).

2. A cutting device for manufacturing a semitrailer according to claim 1, characterized in that: A spring No. 1 is provided between the limiting rod (69) and the rotating rod (67), and the roller (68) is in contact with the limiting rod (69).

3. A cutting device for manufacturing a semitrailer according to claim 2, characterized in that: The anti-slip device comprises: a support rod (71), a hollow circular ring (72), a long rod (73), a collar (74), an inner plate (75), a friction slider (77), a baffle (78), a blocking arc block (79), a square plate (710) and a triangular block (711), wherein the support rod (71) is fixedly mounted on the top of the driving device (5), the hollow circular ring (72) is fixedly mounted on the top of the support rod (71), the long rod (73) is fixedly penetrated through the inner and outer walls of the transmission ring (65), the collar (74) is fixedly mounted on the inner wall of the hollow circular ring (72), the inner plate (75) is slidably mounted on the inner wall of the hollow circular ring (72), and the One end of the long rod (73) is slidably mounted on a side of the circular seat (62) close to the fixed rod (66), and the other end of the long rod (73) is fixedly mounted on a side of the inner plate (75) away from the circular seat (62). The friction slider (77) is slidably mounted on the inner wall of the inner plate (75), the baffle plate (78) is fixedly mounted between the inner plate (75) and the collar (74), the blocking arc block (79) is fixedly mounted between the baffle plate (78) and the inner plate (75), the square plate (710) is fixedly mounted on the surface of the friction slider (77), and the triangular block (711) is fixedly mounted between the square plate (710) and the friction slider (77).

4. A cutting device for manufacturing a semitrailer according to claim 3, characterized in that: A No. 2 spring (76) is provided between the square plate (710) and the inner plate (75), and the friction slider (77) is in contact with the blocking arc block (79).

5. A cutting device for manufacturing a semitrailer according to claim 4, characterized in that: A square groove is provided between the hollow circular ring (72) and the sleeve ring (74), and the triangular block (711) is in contact with the square groove.

6. A cutting device for manufacturing a semitrailer according to claim 5, characterized in that: The support device comprises: a hollow box (81), a top plate (82), an L-shaped rod (83), a telescopic connecting rod (84), a sliding plate (85), an elastic telescopic rod (86), a supporting vertical rod (87), an arc-shaped rod 1 (88) and an arc-shaped rod 2 (89), wherein the hollow box (81) is fixedly mounted on the top of the driving device 1 (5), the top plate (82) is fixedly mounted on the top of the hollow box (81), the L-shaped rod (83) slides through the inner and outer walls of the hollow ring (72) and the inner plate (75), the sliding plate (85) is slidably mounted on the inner wall of the hollow box (81), the telescopic connecting rod (84) is fixedly mounted on the top of the hollow box (81), and the free end of the telescopic connecting rod (84) is fixedly mounted on the inner wall of the hollow box (81). The elastic telescopic rod (86) is fixedly mounted on the inner and outer walls of the sliding plate (85), one end of the L-shaped rod (83) is rotatably mounted on the top of the telescopic connecting rod (84), and the other end of the L-shaped rod (83) is slidably mounted on the inner and outer walls of the blocking arc block (79). The elastic telescopic rod (86) is fixedly mounted on the bottom of the inner wall of the hollow box (81), and the free end of the elastic telescopic rod (86) is fixedly mounted on the bottom of the sliding plate (85). The supporting vertical rod (87) is fixedly mounted on the top of the sliding plate (85), and the arc rod 1 (88) is fixedly mounted on the top of the supporting vertical rod (87). A No. 3 spring is arranged on the top of the arc rod 1 (88), and the arc rod 2 (89) is connected to the arc rod 1 (88) through the No. 3 spring.

7. A cutting device for manufacturing a semitrailer according to claim 6, characterized in that: The support device further comprises: a transmission rod (810), an inclined surface block (811) and an arc surface block (812); the transmission rod (810) slidably penetrates the inner wall of the support vertical rod (87); the inclined surface block (811) is slidably mounted on the inner wall of the hollow box (81); and the arc surface block (812) is fixedly mounted on a side of the telescopic connecting rod (84) close to the inclined surface block (811).

8. A cutting device for manufacturing a semitrailer according to claim 7, characterized in that: The inclined surface block (811) is in contact with the arc surface block (812), and a No. 4 spring is arranged inside the telescopic connecting rod (84).

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