A cutting and forming device and method for prefabricated components of underground utility tunnels

Abstract

This invention discloses a cutting and forming device and method for prefabricated components of underground utility tunnels, relating to the field of workpiece cutting. The cutting and forming device includes a base with a pad fixedly connected to the top. Four pushing seats continue to push a compression spring, clamping plates, and a square rod together in a direction closer to each other. Two clamping plates clamp the two sides of the prefabricated component, thereby limiting its position and ensuring stable cutting of the component. This overcomes the problems of existing underground utility tunnel prefabricated component cutting devices, which mostly simply clamp and limit the prefabricated component, easily leading to difficulties in accurate alignment during subsequent construction. Furthermore, the need to maintain a certain cutting quality and precision during circular saw cutting limits the cutting speed, resulting in low cutting efficiency for underground utility tunnel prefabricated components.

Description

Technical Field

[0001] This invention relates to the field of workpiece cutting, and more particularly to a cutting and forming device and method for prefabricated components of underground utility tunnels. Background Technology

[0002] Underground utility tunnels, as an important component of urban infrastructure, undertake the task of laying various pipelines such as electricity, communications, water supply, and drainage. Their construction is of great significance for improving urban operational efficiency, ensuring urban safety, and beautifying the urban environment. In the production and construction process of prefabricated components for underground utility tunnels, cutting is an essential step, and the choice of cutting technology directly affects the dimensional accuracy, surface quality, and production efficiency of the prefabricated components.

[0003] Currently, the cutting of prefabricated components for underground utility tunnels is usually done using a disc cutter. This process often generates vibration, which affects the cutting accuracy of the prefabricated components. Existing cutting devices for prefabricated components in underground utility tunnels mostly involve simply clamping and limiting the components, which can lead to difficulties in accurately aligning the prefabricated parts during subsequent construction. Furthermore, the cutting speed is limited due to the need to maintain a certain level of cutting quality and precision, resulting in low cutting efficiency for prefabricated components in underground utility tunnels. Summary of the Invention

[0004] To overcome the shortcomings of existing underground utility tunnel prefabricated component cutting devices, such as difficulty in accurately aligning prefabricated components during subsequent construction and low cutting efficiency, this invention provides a cutting and forming device and method for underground utility tunnel prefabricated components that can simultaneously clamp all four sides of the prefabricated component, thereby improving its stability, and uses a diamond wire saw to cut the prefabricated component, thereby improving the cutting efficiency.

[0005] The first aspect of the present invention is to provide a cutting and forming device for prefabricated components of underground utility tunnels, including a base, a pad fixedly connected to the top of the base, a prefabricated component placed on the top of the pad, a fixing plate fixedly connected to both sides of the top of the base, a lifting mechanism provided on the base, and a clamping mechanism provided on both fixing plates.

[0006] The clamping mechanism is used to clamp the precast component, and the lifting mechanism is equipped with a cutting mechanism, which is used to drive the cutting mechanism to cut the precast component.

[0007] According to one aspect of the above technical solution, the lifting mechanism includes electric push rods, four electric push rods are fixedly connected to the base, a square frame is fixedly connected between the tops of the push rods of the four electric push rods, extrusion groove plates are fixedly connected to both sides of the square frame, inclined grooves are opened at the bottom of the two extrusion groove plates, and round rods are placed on the inclined grooves at the bottom of the two extrusion groove plates, and a cutting frame is fixedly connected to the inside of the square frame.

[0008] According to one aspect of the above technical solution, the clamping mechanism includes square rods, square rods are slidably connected to both sides of the two fixed plates, a clamping plate is fixedly connected between the ends of the two square rods on the same fixed plate away from the round rod, and push seats are slidably connected to the four square rods;

[0009] Among them, the ends of the two push seats on the same side away from the clamping plate are fixedly connected to the round rod on the same side, and fixed discs are fixedly connected to the four square rods. A compression spring is fixedly connected between the fixed disc on the same square rod and the clamping plate.

[0010] According to one aspect of the above technical solution, the fixed disc is located inside the push seat.

[0011] According to one aspect of the above technical solution, the cutting mechanism includes a support base, the support base is fixedly connected to the square frame, a power motor is fixedly connected to the support base, four rotating rollers are rotatably mounted on the cutting frame, two rotating rods are rotatably connected to the cutting frame, sprockets are fixedly connected to the four rotating rollers and the two rotating rods, a chain is wound between the six sprockets, the sprockets on the four rotating rollers are located on the inner side of the chain, and the sprockets on the two rotating rods are located on the outer side of the chain;

[0012] Among them, the two upper rotating rollers and the two rotating rods are all fixedly connected to the end away from the power motor with transmission gears. The sprockets on the rotating rollers and rotating rods on the same side are meshed with each other. Each of the four rotating rollers is fixedly connected to a transmission wheel. The four transmission wheels are all located inside the cutting frame. Diamond wire saws are wound around the four transmission wheels.

[0013] According to one aspect of the above technical solution, it also includes a limiting mechanism, which is disposed on the clamping plate and is used to press and limit the upper and lower sides of the precast component.

[0014] According to one aspect of the above technical solution, the limiting mechanism includes a clamping strip, two vertical slots are opened on each of the four clamping plates, a clamping strip is slidably connected to the two vertical slots of each clamping plate, a slot is opened on one side of each clamping strip, a moving wheel is rotatably connected to the end of each clamping strip near the fixed plate, a compression spring is fixedly connected between the upper side of the clamping strip in the vertical slot above the clamping plate and the vertical slot above the clamping plate, and a compression spring is fixedly connected between the lower side of the clamping strip in the vertical slot below the clamping plate and the vertical slot below the clamping plate.

[0015] Each clamping plate is fixedly connected to two fixing frames, and each of the eight fixing frames is slidably connected to a clamping rod. A return spring is fixedly connected between the clamping rod and the fixing frame. A moving rod is fixedly connected between the two clamping rods on the same side. A moving slot plate is fixedly connected to the two pushing seats on the same fixing plate on opposite sides. Each moving slot plate has an inclined slot, and the moving rod on the same side is located in the inclined slot of the moving slot plate.

[0016] According to one aspect of the above technical solution, the four clamping strips located below are situated within two of the grooves of the pad.

[0017] According to one aspect of the above technical solution, it also includes movable wheels. Each of the clamping bars has four movable wheels rotatably connected to its center, and the four movable wheels on the clamping bar are respectively located on both sides of the clamping plate.

[0018] A second aspect of the present invention is to provide a method of using a cutting and forming device for prefabricated components of underground utility tunnels, comprising the following steps:

[0019] S1. First, use an external forklift to place the prefabricated components onto the pads;

[0020] S2. Then the staff starts the electric push rod and the power motor. The push rod of the electric push rod drives the square frame, the cutting frame and the extrusion groove plate to move downward.

[0021] S3. The extrusion groove plate pushes four push seats, four extrusion springs, four square rods, two clamping plates and two round rods. The two clamping plates clamp the two sides of the precast component.

[0022] S4. The two clamping plates move toward each other, causing the eight clamping bars and eight moving wheels to move. Under the action of the compression spring, the eight clamping bars will press the top and bottom of the precast component respectively.

[0023] S5. The movement of the four push seats drives the movement of the four moving slot plates, the movement of the moving slot plates drives the movement of the moving rods, and the movement of the four moving rods drives the eight clamping rods to be respectively clamped into the slots of the clamping strips.

[0024] S6. The cutting frame moves downward, driving four rotating rollers, two rotating rods, four transmission wheels and diamond wire saw to move downward together. The output shaft of the power motor drives the four transmission wheels on the four rotating rollers and the diamond wire saw to rotate. The diamond wire saw cuts the prefabricated components.

[0025] S7. After the precast components are cut, the staff controls the electric push rod to reset and turns off the power motor. After the electric push rod has reset, a forklift is used to remove the cut precast components from the pad.

[0026] Compared with the prior art, the cutting and forming device and method for prefabricated underground utility tunnel components shown in this invention have the following advantages:

[0027] 1. The electric push rod drives the square frame, two extrusion groove plates, support base, cutting frame and diamond wire saw to move downward together, thereby clamping the precast component first, and then pushing the diamond wire saw to cut. The two extrusion groove plates continue to move downward, and the four push bases continue to push the extrusion spring, clamping plate and square rod to move together in a direction closer to each other. The two clamping plates clamp the two sides of the precast component, thereby limiting the precast component, so that the precast component can be cut stably in the future, and improving the stability of the precast component during cutting.

[0028] 2. By utilizing the high-speed rotation of the diamond wire saw and its inherent characteristics, the precast components can be cut quickly while ensuring the flatness of the cut surface, thereby improving the cutting efficiency of the precast components.

[0029] 3. By engaging the clamping rod into the slot of the clamping strip, the eight clamping strips clamp and limit the top and bottom of the precast component respectively, thereby enabling the precast component to be cut more stably and further improving the stability of the precast component during cutting. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the base, pad, prefabricated component and fixing plate in one embodiment of the present invention.

[0031] Figure 2 This is a partial three-dimensional structural diagram of the lifting mechanism in one embodiment of the present invention.

[0032] Figure 3 This is a partial three-dimensional structural diagram of the clamping mechanism in one embodiment of the present invention.

[0033] Figure 4 This is a three-dimensional structural diagram showing the disassembled clamping mechanism and fixing plate in one embodiment of the present invention.

[0034] Figure 5 This is a three-dimensional structural diagram of the support base, power motor, and part of the cutting mechanism in one embodiment of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of the cutting frame and part of the cutting mechanism in one embodiment of the present invention.

[0036] Figure 7 This is a three-dimensional structural diagram of a portion of the limiting mechanism in one embodiment of the present invention.

[0037] Figure 8 This is a three-dimensional structural diagram of the clamping strip, the movable wheel, and the swivel wheel in one embodiment of the present invention.

[0038] Component symbol explanation in the attached diagram:

[0039] 1: Base, 2: Pad, 3: Precast component, 4: Fixing plate, 51: Electric push rod, 52: Square frame, 53: Extrusion groove plate, 54: Round rod, 55: Cutting frame, 61: Square rod, 62: Clamping plate, 63: Push seat, 631: Fixed disc, 64: Extrusion spring, 71: Support seat, 72: Power motor, 73: Rotating roller, 74: Rotating rod, 75: Sprocket, 76: Chain, 77: Transmission gear, 78: Transmission wheel, 79: Diamond wire saw, 81: Pressure bar, 82: Moving wheel, 83: Compression spring, 84: Fixing frame, 85: Clamping rod, 86: Return spring, 87: Moving rod, 88: Moving groove plate, 9: Movable wheel. Detailed Implementation

[0040] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] Example 1

[0043] The first embodiment of the present invention provides a cutting and forming device for prefabricated components of underground utility tunnels, such as... Figures 1-6 As shown, the device includes a base 1, a pad 2 welded to the top of the base 1, three grooves on the pad 2, a precast component 3 placed on the top of the pad 2, fixing plates 4 welded to both sides of the top of the base 1, two inclined surfaces on the upper and lower parts of the fixing plates 4, a lifting mechanism on the base 1, and clamping mechanisms on both fixing plates 4. The clamping mechanisms are used to clamp the precast component 3, and a cutting mechanism is provided on the lifting mechanism. The lifting mechanism is used to drive the cutting mechanism to cut the precast component 3.

[0044] In this embodiment, the lifting mechanism includes electric push rods 51. Four electric push rods 51 are fixedly connected to the base 1. A square frame 52 is welded between the tops of the push rods of the four electric push rods 51. Extrusion groove plates 53 are welded on both sides of the square frame 52. Inclined grooves are opened at the bottom of the two extrusion groove plates 53. Round rods 54 are placed on the inclined grooves at the bottom of the two extrusion groove plates 53. The extrusion groove plates 53 are used to push the round rods 54 to move. A cutting frame 55 is welded to the inside of the square frame 52.

[0045] In this embodiment, the clamping mechanism includes square rods 61. Square rods 61 are slidably connected to both sides of the two fixing plates 4. A clamping plate 62 is welded between the ends of the two square rods 61 on the same fixing plate 4 away from the round rod 54. The clamping plate 62 is used to clamp the two sides of the precast component 3. Push seats 63 are slidably connected to the four square rods 61. The ends of the two push seats 63 on the same side away from the clamping plate 62 are welded to the round rod 54 on the same side. Fixed discs 631 are welded to the four square rods 61. A compression spring 64 is fixedly connected between the fixed discs 631 on the same square rod 61 and the clamping plate 62.

[0046] The fixed disc 631 is located inside the push base 63.

[0047] In this embodiment, the cutting mechanism includes a support base 71, which is welded onto a square frame 52. A power motor 72 is fixedly connected to the support base 71. Four rotating rollers 73 are rotatably mounted on the cutting frame 55, and two rotating rods 74 are rotatably connected to the cutting frame 55. The two rotating rods 74 are located diagonally below the two upper rotating rollers 73. Sprockets 75 are fixedly connected to each of the four rotating rollers 73 and the two rotating rods 74. A chain 76 is wound around the six sprockets 75, and the chain 76 is used to drive the sprockets 75. The sprockets 75 on the four rotating rollers 73 are located inside the chain 76. On one side, the sprockets 75 on the two rotating rods 74 are located outside the chain 76. The two rotating rollers 73 and the ends of the two rotating rods 74 away from the power motor 72 are all fixedly connected to the transmission gears 77. The rotating rollers 73 and the sprockets 75 on the rotating rods 74 on the same side are meshed. The four rotating rollers 73 are all fixedly connected to the transmission wheels 78. The four transmission wheels 78 are all located inside the cutting frame 55. The diamond wire saws 79 are wound around the four transmission wheels 78. The four transmission wheels 78 are used to drive the diamond wire saws 79 to rotate. The diamond wire saws 79 are used to cut the prefabricated components 3.

[0048] When precast component 3 needs to be cut, the worker first uses a forklift to place precast component 3 onto pad 2, then removes the forklift from precast component 3. Next, the electric push rod 51 and power motor 72 are activated. The push rod of electric push rod 51 retracts, causing square frame 52 to move downwards. The downward movement of square frame 52 causes two extrusion groove plates 53 to move downwards. The downward movement of the two extrusion groove plates 53 pushes two round rods 54 towards each other through the inclined grooves on the extrusion groove plates 53. The two round rods 54 respectively push two push seats 63, which move along square rod 61 towards each other. The movement of the four push seats 63 towards each other also pushes the extrusion spring 64, clamping plate 62, and square rod 61 together. The two clamping plates 62 fit against the sides of precast component 3. The downward movement of square frame 52 causes support seat 71 and cutting frame 55 to move downwards together. The support 71 moves downward, driving the power motor 72 to move downward as well. The cutting frame 55 moves downward, driving the rotating roller 73, rotating rod 74, sprocket 75, chain 76, transmission gear 77, transmission wheel 78, and diamond wire saw 79 to move downward together. The push rod of the electric push rod 51 drives the square frame 52, two extrusion groove plates 53, support 71, cutting frame 55, and diamond wire saw 79 to move downward together, thereby clamping the precast component 3 first, and then pushing the diamond wire saw 79 to cut. The two extrusion groove plates 53 continue to move downward, and the four push seats 63 continue to push the extrusion spring 64, clamping plate 62, and square rod 61 to move towards each other. The two clamping plates 62 clamp the two sides of the precast component 3, thereby limiting the precast component 3, so that the precast component 3 can be cut stably in the future, improving the stability of the precast component during cutting.

[0049] Secondly, the forward rotation of the output shaft of the power motor 72 drives the rotating roller 73 near the output shaft of the power motor 72 and one of the transmission gears 77 on the side of the cutting frame 55 to rotate forward. The forward rotation of one of the transmission gears 77 on the side of the cutting frame 55 drives the rotating rod 74 near the power motor 72 and another transmission gear 77 on the side of the cutting frame 55 to rotate in reverse. The forward rotation of the rotating roller 73 and sprocket 75 near the output shaft of the power motor 72 and the reverse rotation of the rotating rod 74 and sprocket 75 near the power motor 72 drive the chain 76 to rotate. The rotation of the chain 76 drives the other rotating rollers 73 and the sprockets 75 on the other rotating rollers 73 to rotate forward. The rotation of the chain 76 also drives the rotating rod 74 and the sprockets 75 on the rotating rod 74 to rotate in reverse. Through the chain 76, all four rotating rollers 73 rotate forward simultaneously. Each rotating roller 73 drives the transmission wheel 78 to rotate, and the rotation of the four transmission wheels 78 drives the diamond wire saw 79 to rotate. The cutting frame 55 moves downward, causing the lowest point of the four transmission wheels 78 and the diamond wire saw 79 to contact the upper surface of the precast component 3. The cutting frame 55 continues to drive the four transmission wheels 78 and the diamond wire saw 79 to move downward. The lowest point of the diamond wire saw 79 cuts the precast component 3. When the cutting frame 55 moves downward to the lowest point, the lowest point of the diamond wire saw 79 is located in the central groove of the pad 2. Through the high-speed rotation of the diamond wire saw, and by taking advantage of the characteristics of the diamond wire saw, the precast component can be cut quickly while ensuring the flatness of the cutting surface of the diamond wire saw, thereby improving the cutting efficiency of the precast component.

[0050] Additionally, after the precast component 3 is cut, the operator activates the electric push rod 51 to reset and shuts off the power motor 72. The push rod 51 resets upward, driving the square frame 52 and the two extrusion groove plates 53. The reset of the square frame 52 drives the four transmission wheels 78 and the diamond wire saw 79 to move upward together. The lowest point of the diamond wire saw 79 resets along the cutting line cut from the precast component 3. The power motor 72 shuts off and no longer drives the rotating roller 73 and transmission gear 77 to rotate. The diamond wire saw 79 also stops rotating. When the lowest point of the diamond wire saw 79 disengages from the precast component 3... When component 3 is being manufactured, the two extrusion groove plates 53 move downwards and no longer extrude the two round rods 54 and the four push seats 63. The four push seats 63 are reset under the action of the extrusion springs 64. The reset of the four push seats 63 pushes the fixed disc 631, the square rod 61 and the clamping plate 62 to reset together. The two clamping plates 62 are reset and no longer clamp the precast component 3. When the push rod of the electric push rod 51 is reset to the initial state, the two clamping plates 62 and the diamond wire saw 79 also return to the initial state. Finally, the external forklift is used to remove the precast component 3 after cutting from the pad 2.

[0051] Example 2

[0052] The second embodiment of the present invention also provides a cutting and forming device for prefabricated components of underground utility tunnels, which is basically similar to the cutting and forming device shown in the first embodiment, except that:

[0053] In this embodiment, please refer to Figure 7 The cutting and forming device shown in this embodiment also includes a limiting mechanism, which is disposed on the clamping plate 62. The limiting mechanism is used to press and limit the upper and lower sides of the precast component 3. The limiting mechanism includes a pressing strip 81. Each of the four clamping plates 62 has two vertical slots. The pressing strip 81 is slidably connected to the two vertical slots of each clamping plate 62. The pressing strip 81 is used to press the top and bottom of the precast component. Each pressing strip 81 has a slot on one side. Each pressing strip 81 has a rotatably connected movable wheel 82 at one end near the fixed plate 4. The upper side of the pressing strip 81 in the vertical slot above the clamping plate 62 is fixed to the vertical slot above the clamping plate 62. A compression spring 83 is fixedly connected to the clamping plate 62. The lower side of the clamping bar 81 in the vertical groove below the clamping plate 62 is fixedly connected to the vertical groove below the clamping plate 62. Two fixing brackets 84 are welded on each clamping plate 62. Each of the eight fixing brackets 84 is slidably connected to a clamping rod 85. A return spring 86 is fixedly connected between the clamping rod 85 and the fixing bracket 84. A moving rod 87 is welded between the two clamping rods 85 on the same side. A moving groove plate 88 is welded to the side of the two push seats 63 on the same fixing plate 4 that are far apart from each other. Each moving groove plate 88 has an oblique groove. The moving rod 87 on the same side is located in the oblique groove of the moving groove plate 88.

[0054] Among them, the four pressing strips 81 located at the bottom are located in two of the grooves of the pad 2.

[0055] In this embodiment, the cutting and forming device moves with the two clamping plates 62 on both sides towards each other, causing the clamping strips 81 and the moving wheels 82 to move together. Under the action of the eight compression springs 83, the eight clamping strips 81 and the eight moving wheels 82 move so that the bottom of the eight moving wheels 82 moves along the two inclined surfaces of the upper and lower parts of the two fixed plates 4 respectively. The two inclined surfaces of the upper and lower parts of the two fixed plates 4 no longer squeeze the eight clamping strips 81 and the eight moving wheels 82. Under the action of the compression springs 83, the four clamping strips 81 respectively press the upper and lower surfaces of the precast component 3. The four pushing seats 63 continue to move towards each other. The four pushing seats 63 all drive the moving groove plate 88. The moving groove plate 88 moves by squeezing the moving rod 87 towards the clamping strips through the inclined grooves. The two ends of the four moving rods 87 respectively drive the clamping rods 85 to engage with the clamping strips. In the slot of 81, the return spring 86 is compressed and is engaged in the slot of the clamping bar 81 by the clamping rod 85, so that the eight clamping bars 81 clamp and limit the top and bottom of the precast component 3 respectively, thereby making the precast component 3 more stable to be cut later, and further improving the stability of the precast component during cutting. After the precast component 3 is cut, the four push seats 63 reset and drive the moving slot plate 88 to reset. The reset of the moving slot plate 88 drives the moving rod 87 to reset. The reset of the moving rod 87 drives the clamping rod 85 to reset. The reset of the return spring 86 also pushes the clamping rod 85 to reset. The reset of the clamping rod 85 no longer clamps the clamping bar 81. The reset of the two clamping plates 62 on both sides drives the eight clamping bars 81 and the eight moving wheels 82 to reset. The eight moving wheels 82 move along the two inclined surfaces of the upper and lower parts of the two fixed plates 4 respectively. The eight clamping bars 81 squeeze the eight compression springs 83 respectively.

[0056] Example 3

[0057] The third embodiment of the present invention also provides a cutting and forming device for prefabricated components of underground utility tunnels, which is basically similar to the cutting and forming device shown in the second embodiment, except that:

[0058] In this embodiment, please refer to Figure 8 and combined Figure 3 The cutting and forming device shown in this embodiment also includes movable wheels 9. Each pressing bar 81 is rotatably connected to four movable wheels 9 in the middle. The four movable wheels 9 on the pressing bar 81 are located on both sides of the clamping plate 62. The movable wheels 9 are used to reduce the friction between the pressing bar 81 and the clamping plate 62.

[0059] In this embodiment, the cutting and forming device moves along the two vertical grooves on the four clamping plates 62. Each movement of the clamping strip 81 drives the four movable wheels 9 to move. The four movable wheels 9 move along both sides of the clamping plate 62. By contacting the two sides of the clamping plate 62 with the movable wheels 9, the friction between the clamping strip 81 and the two sides of the clamping plate 62 is reduced, making the movement of the clamping strip 81 along the two vertical grooves of the clamping plate 62 smoother.

[0060] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A cutting and forming device for prefabricated components of underground utility tunnels, characterized in that: Includes a base (1), a pad (2) is fixedly connected to the top of the base (1), a prefabricated component (3) is placed on the top of the pad (2), and fixed plates (4) are fixedly connected to both sides of the top of the base (1). The base (1) is provided with a lifting mechanism, and both fixed plates (4) are provided with clamping mechanisms. The clamping mechanism is used to clamp the precast component (3), and the lifting mechanism is equipped with a cutting mechanism. The lifting mechanism is used to drive the cutting mechanism to cut the precast component (3). The lifting mechanism includes an electric push rod (51), and four electric push rods (51) are fixedly connected to the base (1). A square frame (52) is fixedly connected between the tops of the push rods of the four electric push rods (51). Extrusion groove plates (53) are fixedly connected to both sides of the square frame (52). Sloping grooves are opened at the bottom of the two extrusion groove plates (53). Round rods (54) are placed on the sloping grooves at the bottom of the two extrusion groove plates (53). A cutting frame (55) is fixedly connected to the inside of the square frame (52). The clamping mechanism includes square rods (61), square rods (61) are slidably connected to both sides of the two fixed plates (4), and clamping plates (62) are fixedly connected between the ends of the two square rods (61) on the same fixed plate (4) away from the round rod (54), and push seats (63) are slidably connected to the four square rods (61). The ends of the two push seats (63) on the same side away from the clamping plate (62) are fixedly connected to the round rod (54) on the same side. Fixed discs (631) are fixedly connected to the four square rods (61). A compression spring (64) is fixedly connected between the fixed disc (631) on the same square rod (61) and the clamping plate (62). It also includes a limiting mechanism, which is disposed on the clamping plate (62) and is used to press and limit the upper and lower sides of the prefabricated component (3); The limiting mechanism includes a clamping strip (81), and each of the four clamping plates (62) has two vertical slots. Each clamping plate (62) has a clamping strip (81) slidably connected to the two vertical slots. Each clamping strip (81) has a slot on one side. Each clamping strip (81) has a movable wheel (82) rotatably connected to one end near the fixed plate (4). The fixed plate (4) has two inclined surfaces at the top and bottom. The movable wheel (82) cooperates with the inclined surfaces. A compression spring (83) is fixedly connected between the upper side of the clamping strip (81) in the vertical slot above the clamping plate (62) and the vertical slot above the clamping plate (62). A compression spring (83) is fixedly connected between the lower side of the clamping strip (81) in the vertical slot below the clamping plate (62) and the vertical slot below the clamping plate (62). Each clamping plate (62) is fixedly connected to two fixing brackets (84), and each of the eight fixing brackets (84) is slidably connected to a clamping rod (85). The clamping rod (85) cooperates with the clamping groove. A return spring (86) is fixedly connected between the clamping rod (85) and the fixing bracket (84). A moving rod (87) is fixedly connected between the two clamping rods (85) on the same side. A moving slot plate (88) is fixedly connected to the side of the two push seats (63) on the same fixing plate (4) that are far apart from each other. Each moving slot plate (88) has an oblique groove. The moving rod (87) on the same side is located in the oblique groove of the moving slot plate (88).

2. The cutting and forming device for prefabricated components of underground utility tunnels according to claim 1, characterized in that: The fixed disc (631) is located inside the push base (63).

3. The cutting and forming device for prefabricated components of underground utility tunnels according to claim 2, characterized in that: The cutting mechanism includes a support base (71), the support base (71) is fixedly connected to the square frame (52), the power motor (72) is fixedly connected to the support base (71), four rotating rollers (73) are rotatably provided on the cutting frame (55), the power motor (72) is connected to at least one rotating roller (73), two rotating rods (74) are rotatably connected to the cutting frame (55), sprockets (75) are fixedly connected to the four rotating rollers (73) and the two rotating rods (74), a chain (76) is wound between the six sprockets (75), the sprockets (75) on the four rotating rollers (73) are located inside the chain (76), and the sprockets (75) on the two rotating rods (74) are located outside the chain (76); Among them, the two upper rotating rollers (73) and the two rotating rods (74) are fixedly connected to the end away from the power motor (72) with transmission gears (77). The transmission gears (77) on the rotating rollers (73) and the rotating rods (74) on the same side mesh with each other. The four rotating rollers (73) are fixedly connected with transmission wheels (78). The four transmission wheels (78) are located inside the cutting frame (55). Diamond wire saws (79) are wound around the four transmission wheels (78).

4. The cutting and forming device for prefabricated components of underground utility tunnels according to claim 1, characterized in that: The four clamping strips (81) located below are situated within two of the grooves of the pad (2).

5. The cutting and forming device for prefabricated components of underground utility tunnels according to claim 1, characterized in that: It also includes movable wheels (9), and four movable wheels (9) are rotatably connected to the middle of each clamping bar (81). The four movable wheels (9) on the clamping bar (81) are respectively located on both sides of the clamping plate (62).

6. The method of using the cutting and forming device for prefabricated components of underground utility tunnels according to claim 5, characterized in that, Includes the following steps: S1. First, use an external forklift to place the prefabricated component (3) onto the pad (2); S2. Then the staff started the electric push rod (51) and the power motor (72). The push rod of the electric push rod (51) drove the square frame (52), the cutting frame (55) and the extrusion groove plate (53) to move downward. S3, the extrusion groove plate (53) pushes four push seats (63), four extrusion springs (64), four square rods (61), two clamping plates (62) and two round rods (54), and the two clamping plates (62) clamp the two sides of the prefabricated component (3); S4. The two clamping plates (62) move toward each other, causing the eight clamping bars (81) and eight moving wheels (82) to move. Under the action of the compression spring (83), the eight clamping bars (81) will press the top and bottom of the precast component (3) respectively. S5. The movement of the four push seats (63) drives the movement of the four moving slot plates (88), the movement of the moving slot plates (88) drives the movement of the moving rods (87), and the movement of the four moving rods (87) drives the eight clamping rods (85) to be respectively clamped into the slots of the clamping strips (81); S6. The cutting frame (55) moves downward, driving the four rotating rollers (73), two rotating rods (74), four transmission wheels (78) and diamond wire saw (79) to move downward together. The output shaft of the power motor (72) drives the four transmission wheels (78) on the four rotating rollers (73) and diamond wire saw (79) to rotate. The diamond wire saw (79) cuts the prefabricated component (3). S7. After the precast component (3) is cut, the staff controls the electric push rod (51) to reset and turns off the power motor (72). After the electric push rod (51) is reset, the forklift is used to remove the precast component (3) from the pad (2).

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