A welding tooling for aircraft panel processing

Abstract

The present invention discloses a welding tooling for aircraft panel processing, which relates to the technical field of aircraft panel processing. The present invention includes a base and a movable frame. The two movable frames are respectively slidably arranged on the left and right sides inside the base. A lead screw is arranged inside the movable frame, and a movable block is in threaded cooperation with the lead screw. The inner surface of the movable block is connected with a U-shaped welding frame. U-shaped grooves are formed on the front and rear surfaces of the U-shaped welding frame. Adjusting blocks are arranged inside the U-shaped grooves. A support frame is connected between the front and rear adjusting blocks. A welding mechanism body is installed on the side of the support frame away from the U-shaped welding frame. A gear is arranged inside the support frame, and a plurality of tooth grooves are formed on the inner wall of the U-shaped welding frame and are meshed with the gear, which is convenient for driving the support frame to move along the track of the U-shaped groove, and further drives the movement of the welding mechanism body. Combining the mutual cooperation of the welding mechanisms on the left and right sides, it is convenient to weld the inner and outer surfaces of the aircraft panel simultaneously, effectively improving the welding effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of aircraft panel processing, and particularly relates to a welding tooling for aircraft panel processing. Background Art

[0002] Aircraft panels are generally thin-walled parts with curved surfaces. During the processing and production of aircraft panels, welding treatment is required to ensure the stability between various parts and the safety during the later use process.

[0003] Currently, when welding aircraft panels, laser welding is generally used, and the laser welding device is usually operated manually. Since the size of aircraft panels is large, when manually welding different parts, the welding progress is slow. Moreover, when welding both sides of the aircraft panel, the aircraft panel needs to be flipped, which increases the workload of the staff and affects the welding efficiency. In view of this, we designed a welding tooling for aircraft panel processing to solve the above problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0005] The present invention is a welding tooling for aircraft panel processing, including a base and a movable frame. The two movable frames are relatively arranged on the left and right sides inside the base. A plurality of sliding grooves are provided on the upper surface inside the base. A plurality of sliders are connected to the lower surface of the movable frame and are slidably matched with the sliding grooves. A plurality of hydraulic cylinders are connected between the movable frame and the inner wall of the base. A lead screw is arranged inside the movable frame. A movable block is threadedly matched with the lead screw. One side of the movable block close to the inner side is connected with a U-shaped welding frame. U-shaped grooves are provided on the front and rear surfaces of the U-shaped welding frame. An adjusting block is movably arranged inside the U-shaped groove. A support frame is connected between the front and rear adjusting blocks. A gear is arranged inside the support frame. A plurality of tooth grooves are provided on the inner wall of the U-shaped welding frame and are meshed with the gear. A welding mechanism body is installed on the side of the support frame away from the U-shaped welding frame.

[0006] Through the meshing action of the gear and the tooth groove, combined with the mutual cooperation of the adjusting block and the U-shaped groove, it is convenient to drive the support frame to move along the track of the U-shaped groove, and then drive the welding mechanism body to move along the U-shaped welding frame, facilitating the simultaneous welding of the inner and outer surfaces of the aircraft panel and the left and right halves of the aircraft panel, without the need to flip the aircraft panel. Combined with the threaded cooperation of the lead screw and the movable block, it is convenient to adjust the forward and backward movement of the U-shaped welding frame to adapt to the welding operations at different positions of the aircraft panel, effectively improving the welding efficiency. Among them, the sliding cooperation of the slider and the sliding groove, under the action of the hydraulic cylinder, is convenient to adjust the mutual approach or separation of the left and right movable frames, and thus facilitates the loading and unloading of the aircraft panel before and after welding.

[0007] Preferably, a wheel groove is formed on one side of the inner wall of the U-shaped groove close to the tooth groove, and a plurality of rollers are installed on the lower surface of the adjusting block and cooperate with the wheel groove. Through the cooperation between the rollers and the wheel groove, the adjusting block is effectively limited, preventing the adjusting block from falling off from the inside of the U-shaped groove, thereby ensuring the stability between the support frame and the U-shaped welding frame, and at the same time ensuring that during the rotation of the gear, the adjusting block moves stably inside the U-shaped groove.

[0008] Preferably, an arc groove is formed at the bottom of the U-shaped groove, and a ball is arranged on the inner side surface of the adjusting block and cooperates with the arc groove. Through the cooperation between the ball and the arc groove, the stability of the adjusting block sliding inside the U-shaped groove is further ensured during the rotation of the gear, effectively preventing friction between the adjusting block and the inner wall of the U-shaped groove and affecting the adjustment of the welding mechanism body.

[0009] Preferably, a rotating rod is arranged inside the gear. The front end of the rotating rod passes through the front surface of the support frame and is connected with a second motor, and the rotating rod is rotationally matched with the support frame. By driving the rotation of the rotating rod by the second motor, the rotation of the gear is further driven, realizing the adjustment of the welding mechanism body.

[0010] Preferably, a plurality of support plates are arranged inside the base along the direction of the movable frame. A group of hydraulic rods are connected between the lower surface of the support plate and the upper surface of the inner part of the base. By means of the hydraulic rods, the up and down movement of the support plate is conveniently adjusted to support the bottom of the aircraft skin, ensuring the stability of the aircraft skin during the welding process.

[0011] Preferably, the front and rear sides of the upper surface of the movable frame and the upper surface of the support plate are both arc-shaped structures. Fixed brackets are fixed on both the front and rear sides of the upper surface of the movable frame. A rubber block is arranged on the lower side inside the fixed bracket, and a cylinder is installed on the upper surface of the fixed bracket. The telescopic end of the cylinder passes through the upper surface of the fixed bracket and is connected with a clamping plate. Through the cooperation between the fixed bracket and the rubber block, driven by the movable frame, the two sides of the aircraft skin are conveniently limited and clamped, and at the same time, the up and down movement of the clamping plate is adjusted by the cylinder to press and fix the left and right sides of the aircraft skin, ensuring the stability of the aircraft skin and facilitating the carrying out of the welding operation.

[0012] Preferably, a pressing plate is inclinedly arranged on the inner side of the clamping plate, and a plurality of springs are connected between the upper surface of the pressing plate and the inner wall of the clamping plate. Through the pressing plate, under the action of the springs, the upper surface of the aircraft skin is further pressed and fixed, ensuring the stability of the aircraft skin.

[0013] Preferably, a first motor is installed on the front surface of the movable frame, and the output end of the first motor passes through the movable frame and is connected with the front end of the lead screw.

[0014] Preferably, a limiting groove is formed on one side of the movable frame close to the lead screw. A limiting rod is arranged inside the limiting groove. A limiting block is slidably sleeved on the limiting rod and cooperates with the limiting groove. The outer side of the limiting block is fixedly connected to the movable block. Through the cooperation between the limiting block and the limiting groove, under the action of the limiting rod, the movable block is limited, preventing the movable block from rotating when the lead screw rotates, and ensuring the stability of the forward and backward movement of the U-shaped welding frame.

[0015] The present invention has the following beneficial effects:

[0016] 1. Through the meshing of the gear and the tooth groove, combined with the cooperation between the adjusting block and the U-shaped groove, the present invention facilitates driving the support frame to move along the trajectory of the U-shaped groove, and then drives the welding mechanism body to move along the U-shaped welding frame, facilitating the simultaneous welding of the inner and outer surfaces of the aircraft panel and the left and right halves of the aircraft panel without flipping the aircraft panel. Combined with the threaded cooperation between the lead screw and the movable block, it is convenient to adjust the forward and backward movement of the U-shaped welding frame to adapt to the welding operations at different positions of the aircraft panel, effectively improving the welding efficiency. Among them, the sliding cooperation between the slider and the chute, under the action of the hydraulic cylinder, facilitates adjusting the mutual approach or separation of the left and right movable frames, and thus facilitates the picking and placing of the aircraft panel before and after welding;

[0017] 2. Through the cooperation between the roller and the wheel groove, the present invention effectively limits the adjusting block, preventing the adjusting block from falling off the inside of the U-shaped groove, thereby ensuring the stability between the support frame and the U-shaped welding frame, and at the same time ensuring that during the rotation of the gear, the adjusting block moves stably inside the U-shaped groove;

[0018] 3. Through the cooperation between the ball and the arc groove, the present invention further ensures the stability of the adjusting block sliding inside the U-shaped groove during the rotation of the gear, effectively preventing friction between the adjusting block and the inner wall of the U-shaped groove, which may affect the adjustment of the welding mechanism body;

[0019] 4. Through the cooperation between the fixed bracket and the rubber block, driven by the movable frame, the present invention facilitates the limiting and clamping of both sides of the aircraft panel, and at the same time, combined with the cylinder to adjust the up and down movement of the clamping plate, the left and right sides of the aircraft panel are pressed and fixed, ensuring the stability of the aircraft panel and facilitating the carrying out of the welding operation.

[0020] Of course, it is not necessary for any product implementing the present invention to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the overall structure of the present invention;

[0023] Figure 2 Top view of the present invention;

[0024] Figure 3 For Figure 2 Schematic diagram of the structure of section A-A in

[0025] Figure 4 For Figure 3 Enlarged schematic diagram of part B in

[0026] Figure 5 Front view of the fixing bracket in the present invention;

[0027] Figure 6 Front view of the support plate in the present invention;

[0028] Figure 7 Front view of the U-shaped welding frame in the present invention;

[0029] Figure 8 For Figure 7 Schematic diagram of the structure of section C-C in

[0030] Figure 9 For Figure 8 Enlarged schematic diagram of part D in

[0031] Figure 10 For Figure 8 Enlarged schematic diagram of part E in

[0032] Figure 11 Schematic diagram of the structure of the support frame in the present invention.

[0033] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0034] 1. Base; 2. Movable frame; 3. Hydraulic cylinder; 4. Chute; 5. Lead screw; 6. Movable block; 7. U-shaped welding frame; 8. U-shaped groove; 9. Support frame; 10. Gear; 11. Adjusting block; 12. Welding mechanism body; 13. Wheel groove; 14. Arc groove; 15. Ball; 16. Roller; 17. Second motor; 18. Support plate; 19. Hydraulic rod; 20. Fixed bracket; 21. Rubber block; 22. Cylinder; 23. Clamp; 24. Pressing plate; 25. Spring; 26. First motor; 27. Limit groove; 28. Limit block; 29. Limit rod. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0037] Please refer to Figures 1 - 11 As shown, the present invention is a welding tool for aircraft panel processing, including a base 1 and a movable frame 2. The two movable frames 2 are relatively arranged on the left and right sides inside the base 1. A plurality of chutes 4 are provided on the upper surface inside the base 1. A plurality of sliders are connected to the lower surface of the movable frame 2 and are slidably matched with the chutes 4. A plurality of hydraulic cylinders 3 are connected between the movable frame 2 and the inner wall of the base 1. A lead screw 5 is arranged inside the movable frame 2. A movable block 6 is in threaded cooperation with the lead screw 5. One side of the movable block 6 close to the inner side is connected with a U-shaped welding frame 7. U-shaped grooves 8 are provided on the front and rear surfaces of the U-shaped welding frame 7. An adjusting block 11 is movably arranged inside the U-shaped groove 8. A support frame 9 is connected between the front and rear adjusting blocks 11. A gear 10 is arranged inside the support frame 9. A plurality of tooth grooves are provided on the inner wall of the U-shaped welding frame 7 and are meshed with the gear 10. A welding mechanism body 12 is installed on the side of the support frame 9 away from the U-shaped welding frame 7.

[0038] Through the meshing of the gear 10 with the tooth groove, combined with the mutual cooperation of the adjusting block 11 and the U-shaped groove 8, it is convenient to drive the support frame 9 to move along the track of the U-shaped groove 8, and then drive the welding mechanism body 12 to move along the U-shaped welding frame 7, facilitating the simultaneous welding of the inner and outer surfaces of the aircraft panel and the left and right halves of the aircraft panel without the need to flip the aircraft panel. Combined with the threaded cooperation of the lead screw 5 and the movable block 6, it is convenient to adjust the forward and backward movement of the U-shaped welding frame 7 to adapt to the welding operations at different positions of the aircraft panel, effectively improving the welding efficiency. Among them, the sliding fit of the slider and the chute 4, under the action of the hydraulic cylinder 3, is convenient to adjust the mutual approach or separation of the left and right movable frames 2, thus facilitating the picking and placing of the aircraft panel before and after welding.

[0039] On one side of the inner wall of the U-shaped groove 8 close to the tooth groove, a wheel groove 13 is provided. A number of rollers 16 are installed on the lower surface of the adjusting block 11 and cooperate with the wheel groove 13. An arc-shaped groove 14 is provided at the bottom of the U-shaped groove 8. A ball 15 is arranged on the inner side of the adjusting block 11 and cooperates with the arc-shaped groove 14. Through the mutual cooperation of the rollers 16 and the wheel groove 13, it effectively limits the adjusting block 11 and prevents the adjusting block 11 from falling off the inside of the U-shaped groove 8, thereby ensuring the stability between the support frame 9 and the U-shaped welding frame 7. At the same time, it ensures that during the rotation of the gear 10, the adjusting block 11 moves stably inside the U-shaped groove 8. The mutual cooperation of the ball 15 and the arc-shaped groove 14 further ensures the stability of the adjusting block 11 sliding inside the U-shaped groove 8 during the rotation of the gear 10, effectively preventing friction between the adjusting block 11 and the inner wall of the U-shaped groove 8 and affecting the adjustment of the welding mechanism body 12.

[0040] A number of support plates 18 are arranged inside the base 1 along the direction of the movable frame 2. A set of hydraulic rods 19 are connected between the lower surface of the support plate 18 and the upper surface inside the base 1. Through the hydraulic rods 19, it is convenient to adjust the up and down movement of the support plate 18 to support the bottom of the aircraft panel and ensure the stability of the aircraft panel during the welding process.

[0041] The front and rear sides of the upper surface of the movable frame 2 and the upper surface of the support plate 18 are both arc-shaped structures. Fixed brackets 20 are fixed on the front and rear sides of the upper surface of the movable frame 2. A rubber block 21 is arranged on the lower side inside the fixed bracket 20. A cylinder 22 is installed on the upper surface of the fixed bracket 20. The telescopic end of the cylinder 22 passes through the upper surface of the fixed bracket 20 and is connected to a clamping plate 23. A pressing plate 24 is inclined on the inner side of the clamping plate 23. A plurality of springs 25 are connected between the upper surface of the pressing plate 24 and the inner wall of the clamping plate 23. Through the mutual cooperation of the fixed bracket 20 and the rubber block 21, driven by the movable frame 2, it is convenient to limit and clamp both sides of the aircraft panel. At the same time, by combining the cylinder 22 to adjust the up and down movement of the clamping plate 23, the left and right sides of the aircraft panel are pressed and fixed, ensuring the stability of the aircraft panel and facilitating the carrying out of the welding operation. Under the action of the spring 25, the pressing plate 24 further presses and fixes the upper surface of the aircraft panel, ensuring the firmness of the aircraft panel.

[0042] A rotating rod is arranged inside the gear 10. The front end of the rotating rod passes through the front surface of the support frame 9 and is connected to a second motor 17. The rotating rod is rotationally matched with the support frame 9. By driving the rotation of the rotating rod by the second motor 17, the rotation of the gear 10 is driven, realizing the adjustment of the welding mechanism body 12.

[0043] A limiting groove 27 is opened on the side of the movable frame 2 close to the lead screw 5. A limiting rod 29 is arranged inside the limiting groove 27. A limiting block 28 is slidably sleeved on the limiting rod 29. In mutual cooperation with the limiting groove 27, the outer side of the limiting block 28 is fixedly connected to the movable block 6. Through the mutual cooperation of the limiting block 28 and the limiting groove 27, under the action of the limiting rod 29, the movable block 6 is limited, preventing the movable block 6 from rotating during the rotation of the lead screw 5, ensuring the stability of the front and rear movement of the U-shaped welding frame 7.

[0044] A first motor 26 is installed on the front surface of the movable frame 2. The output end of the first motor 26 passes through the movable frame 2 and is connected to the front end of the lead screw 5. By driving the rotation of the lead screw 5 by the first motor 26, it is convenient to adjust the front and rear movement of the U-shaped welding frame 7.

[0045] Embodiment 1: Before the present invention is used, the hydraulic cylinders 3 are all in a retracted state. The two movable frames 2 are respectively located on the left and right sides inside the base 1. When carrying out the welding operation of the aircraft panel, first, adjust a plurality of hydraulic rods 19 to extend simultaneously, thereby driving the support plate 18 to an appropriate height, so that the height of the arc-shaped cross-section on the upper surface of the support plate 18 is higher than the arc-shaped surface on the upper surface of the movable frame 2. At this time, place the aircraft panel to be welded on the upper surfaces of a plurality of support plates 18 through an external hoisting mechanism, and make the lower surface of the aircraft panel contact the arc-shaped surface of the support plate 18;

[0046] At the same time, the hydraulic cylinder 3 is driven to extend. Under the sliding fit between the slider and the chute 4, the left and right movable frames 2 are pushed towards the central position until the fixed brackets 20 and the rubber blocks 21 on the left and right sides contact the left and right sides of the aircraft wall panel. Then the hydraulic cylinder 3 stops operating. At this time, the hydraulic rod 19 contracts until the lower surface of the aircraft wall panel contacts the arc section on the upper surface of the movable frame 2, and the hydraulic rod 19 stops operating. Then the air cylinder 22 is started to drive the clamping plate 23 to move downward and clamp the left and right ends of the aircraft wall panel. At the same time, under the elastic action of the spring 25, the pressing plate 24 presses on the inner surface of the aircraft wall panel, realizing the fixation of the aircraft wall panel, which is convenient for carrying out welding operations. At this time, the aircraft wall panel and the inner center line of the U-shaped welding frame 7 are on the same plane, which is convenient for adjusting the forward and backward movement of the U-shaped welding frame 7 to weld the upper and lower surfaces of the aircraft wall panel.

[0047] Embodiment 2: When carrying out the welding operation, by driving the first motor 26, the rotation of the lead screw 5 is driven. Combining the threaded fit between the lead screw 5 and the movable block 6, and the combined action of the limit block 28, the limit groove 27 and the limit rod 29, the U-shaped welding frame 7 is driven to move along the direction of the aircraft wall panel;

[0048] At the same time, the second motor 17 is started. Under the action of the rotating rod, the gear 10 is driven to rotate. Under the meshing action between the gear 10 and the tooth groove, combining the mutual cooperation between the roller 16 and the wheel groove 13 and the mutual cooperation between the ball 15 and the arc groove 14, under the action of the adjusting block 11, the support frame 9 is driven to move along the track of the U-shaped groove 8, and then the welding mechanism body 12 is driven to move along the direction of the U-shaped welding frame 7, which is convenient for welding the upper and lower surfaces of the aircraft wall panel. When the welding mechanism body 12 is at the upper side inside the U-shaped welding frame 7, the upper surface of the aircraft wall panel is welded. When the welding mechanism body 12 moves to the lower side inside the U-shaped welding frame 7, the lower surface of the aircraft wall panel is welded;

[0049] The left and right halves of the upper and lower surfaces of the aircraft wall panel can be welded conveniently by the left welding mechanism body 12, and the right and left halves of the upper and lower surfaces of the aircraft wall panel can be welded conveniently by the right welding mechanism body 12, effectively improving the welding efficiency and eliminating the need to flip the aircraft wall panel, reducing the workload of the staff during the welding process. Among them, the welding mechanism body 12 is preferably a combined mechanism of a laser welding machine and a welding robot arm to prevent welding dead corners, and both the laser welding machine and the welding robot arm are existing technologies that have been publicly disclosed and put into use, so they will not be elaborated in this invention;

[0050] When the U-shaped welding jig 7 moves to the support plate 18, a set of hydraulic rods 19 on the lower side of the support plate 18 contract simultaneously, driving the support plate 18 to move downward, facilitating the continuous movement of the left and right U-shaped welding jigs 7. At this time, the other hydraulic rods 19 do not operate, and the other support plates 18 are always kept supporting the lower surface of the aircraft skin, ensuring the support stability at the bottom of the aircraft skin, facilitating the welding operation and the stability of the aircraft skin during the welding process. According to the above operations, until the U-shaped welding jig 7 moves to the frontmost and rearmost ends, the welding operation of the aircraft skin is completed;

[0051] After the welding is completed, the air cylinder 22 contracts, driving the clamping plate 23 to disengage from the aircraft skin, and then driving the hydraulic rods 19 to extend. Under the action of the support plate 18, the welded aircraft skin is lifted to a suitable height. At this time, the hydraulic cylinder 3 contracts, driving the two movable frames 2 to move to the leftmost and rightmost sides respectively, and the aircraft skin is taken out through an external hoisting mechanism.

[0052] It should be further noted that in the present invention, the hydraulic cylinder 3, the welding mechanism body 12, the second motor 17, the hydraulic rods 19, the air cylinder 22, and the first motor 26 are all connected to an external control mechanism, facilitating the operation and use by the staff. And the above components are all purchased on the market, and those skilled in the art can install and use them according to the requirements.

[0053] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A welding tooling for aircraft panel processing, comprising a base (1) and a movable frame (2). The two movable frames (2) are oppositely arranged on the left and right sides inside the base (1), and it is characterized in that, On the inner upper surface of the base (1), several sliding grooves (4) are provided. On the lower surface of the movable frame (2), several sliding blocks are connected, which are slidably matched with the sliding grooves (4). Between the movable frame (2) and the inner wall of the base (1), several hydraulic cylinders (3) are connected. Inside the movable frame (2), a lead screw (5) is provided. On the lead screw (5), a movable block (6) is threadedly matched. On the inner side of the movable block (6), a U-shaped welding frame (7) is connected. On the front and rear surfaces of the U-shaped welding frame (7), U-shaped grooves (8) are provided. Inside the U-shaped grooves (8), adjusting blocks (11) are movably arranged. Between the front and rear adjusting blocks (11), a support frame (9) is connected. Inside the support frame (9), a gear (10) is provided. On the inner wall of the U-shaped welding frame (7), several tooth grooves are provided, which are meshed with the gear (10). On the side of the support frame (9) away from the U-shaped welding frame (7), a welding mechanism body (12) is installed; On one side of the inner wall of the U-shaped groove (8) close to the tooth groove, a wheel groove (13) is provided. On the lower surface of the adjusting block (11), several rollers (16) are installed, which are cooperated with the wheel groove (13); At the bottom of the U-shaped groove (8), an arc groove (14) is provided. On the inner side of the adjusting block (11), a ball (15) is provided, which is cooperated with the arc groove (14); Inside the gear (10), a rotating rod is provided. The front end of the rotating rod passes through the front surface of the support frame (9) and is connected with a second motor (17), and the rotating rod is rotationally matched with the support frame (9); Inside the base (1), several support plates (18) are arranged along the direction of the movable frame (2). Between the lower surface of the support plate (18) and the inner upper surface of the base (1), a group of hydraulic rods (19) are connected; The front and rear sides of the upper surface of the movable frame (2) and the upper surface of the support plate (18) are both arc-shaped structures. On the front and rear sides of the upper surface of the movable frame (2), fixed brackets (20) are fixed. Inside the lower side of the fixed bracket (20), a rubber block (21) is provided. On the upper surface of the fixed bracket (20), a cylinder (22) is installed. The telescopic end of the cylinder (22) passes through the upper surface of the fixed bracket (20) and is connected with a clamping plate (23); On the inner side of the clamping plate (23), a pressing plate (24) is inclined. Between the upper surface of the pressing plate (24) and the inner wall of the clamping plate (23), several springs (25) are connected; On the front surface of the movable frame (2), a first motor (26) is installed. The output end of the first motor (26) passes through the movable frame (2) and is connected with the front end of the lead screw (5); On one side of the movable frame (2) close to the lead screw (5), a limiting groove (27) is provided. Inside the limiting groove (27), a limiting rod (29) is provided. On the limiting rod (29), a limiting block (28) is slidably sleeved, which is cooperated with the limiting groove (27). On the outer side of the limiting block (28), it is fixedly connected with the movable block (6).

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