Cutting device and method for automobile rubber pipe machining

Abstract

The invention discloses a cutting device and method for automobile rubber pipe machining, and relates to the technical field of rubber pipe cutting tools. Through cooperation of a baffle and an infrared distance sensor, the cutting length of a rubber pipe is conveniently and accurately controlled, and the convenience and accuracy of cutting operation on the rubber pipe are improved; through cooperation of the bearing base and the baffle, automatic discharging after rubber pipe cutting is facilitated, and the cutting efficiency is improved; through cooperative work of an electric push rod, an infrared distance sensor and a control assembly, the moving and cutting time of the cutting disc is precisely controlled; before cutting, the analysis module can calculate the telescopic speed of the electric push rod according to the diameter and the conveying speed of the rubber pipe, it is ensured that the cutting disc completes cutting operation rapidly and accurately, the situation that the rubber pipe is driven to move due to the too low cutting speed is avoided, the rubber pipe is clamped by controlling the retractable clamping plate, and a notch of the rubber pipe is horizontal; and therefore, the cutting length error is effectively reduced, and the size precision of the cut rubber pipe meets the requirement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber tube cutting tools, in particular to a cutting device and method for processing automobile rubber tubes. BACKGROUND

[0002] In the automobile manufacturing industry, rubber tubes, as an important part of automobile parts, are widely used in the fuel system, braking system, cooling system and various hydraulic systems of automobiles; rubber tubes need to be cut into specific lengths and shapes according to different use positions and functional requirements; the traditional cutting method of automobile rubber tubes is mostly manual cutting.

[0003] Manual cutting has many drawbacks. On the one hand, the cutting accuracy is difficult to guarantee. Due to the instability of manual operation, the length error of the cut rubber tube is large, which will affect the installation and use effect of the rubber tube on the automobile, and even may cause failure of the related system of the automobile. In the braking system, inaccurate length of the rubber tube may affect the transmission of the brake fluid, reduce the braking performance, and pose a safety hazard. On the other hand, manual cutting is low in efficiency. With the continuous expansion of automobile production scale, the demand for rubber tubes is increasing, and the speed of manual cutting is far from meeting the demand of large-scale production, which undoubtedly increases the production cost and production cycle of enterprises. If the cutting speed is too slow, the displacement of the rubber tube during cutting will cause deviation between the actual length of the cut rubber tube and the preset standard length, resulting in size accuracy not meeting the requirements. Therefore, improvements need to be made according to the above problems. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and provide a cutting device and method for processing automobile rubber tubes.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: a cutting device and method for processing automobile rubber tubes, comprising a base, four support columns are installed on the bottom surface of the base, a cutting groove is longitudinally formed on one side of the top surface of the base, a cutting assembly is arranged in the cutting groove, the cutting assembly comprises a cutting disc, a connecting rod, a first motor and an electric push rod; A control assembly is arranged in the controller of the second motor, which comprises a collection module, an analysis module and an execution module; The collection module detects the size data of one end of the rubber tube and the transmission speed data of the rubber tube, and transmits the detected size and speed data to the analysis module; The analysis module analyzes the size data of one end of the rubber tube, determines the diameter data of the rubber tube, calculates the extension speed of the electric push rod according to the diameter data and the transmission speed data, then generates a push rod adjusting signal, and transmits the push rod adjusting signal to the execution module; analyzes the error data caused by movement, friction, measurement and elastic deformation, and determines whether it affects the cutting accuracy, if it does, a clamping signal is generated and transmitted to the execution module. The execution module receives the signal transmitted by the analysis module, and then performs the corresponding operation.

[0006] Preferably, a mounting groove is formed at the front end of the connecting rod, the cutting disc is rotatably connected in the mounting groove, the first motor is installed on one side of the connecting rod, the output shaft of the first motor is connected with the cutting disc, the rear end of the connecting rod is connected with the output shaft of the electric push rod, and the electric push rod is installed on the top surface of the base.

[0007] Preferably, a supporting seat is transversely installed on the other side of the top surface of the base, the front end face of the supporting seat is arc-shaped, a cavity is formed in the supporting seat, a guide rod is transversely fixed in the cavity, a moving block is slidably connected to the outside of the guide rod, a baffle is fixed to the upper end of the moving block, the lower end of the baffle penetrates the cavity, and a compression spring is arranged on the other side of the moving block and sleeved on the outside of the guide rod.

[0008] Preferably, a supporting block is arranged on the other side of the supporting seat and installed on the top surface of the base, an infrared distance sensor is installed on the top surface of the supporting block, and the emitting end of the infrared distance sensor faces the baffle.

[0009] Preferably, positioning plates are fixed to the front and rear ends of one side of the top surface of the base, the positioning plates are arranged on one side of the cutting groove, a supporting roller is rotatably connected between the lower ends of the two positioning plates, a second motor is installed below the front end face of the front positioning plate, and the output shaft of the second motor is connected with the supporting roller through a shaft coupling.

[0010] Preferably, grooves are formed above the front end faces of the two positioning plates, lifting blocks are slidably connected in the grooves, tension springs are fixed to the bottom surfaces of the lifting blocks, the other ends of the tension springs are fixed to the grooves, and an extrusion roller is rotatably connected between the two lifting blocks and recessed inward in the middle.

[0011] Preferably, two sides of the base corresponding to the position of the cutting disc are provided with retractable clamping plates, the surface of the base corresponding to the position of the retractable clamping plates is provided with a sliding groove, a first sliding block is installed inside the sliding groove corresponding to the position of the retractable clamping plate, the first sliding block is connected with the retractable clamping plate, a second sliding block is arranged inside the sliding groove at a certain distance before and after the first sliding block, the second sliding block is fixedly connected with the first sliding block through a plurality of connecting rods, the second sliding block is connected with the first sliding block through a telescopic spring, and the telescopic spring is also arranged on the base corresponding to the position of the retractable clamping plate.

[0012] Preferably, the analysis module performs the following analysis steps for the speed adjustment of the electric push rod: S1: After moving away the baffle, the change of the moving distance of the rubber tube per unit time is detected, and the moving speed data of the rubber tube is calculated After obtaining the moving data of the rubber tube, when the rubber tube stops moving for cutting operation, the infrared distance sensor is vertically rotated, and when the detection data changes from large to small and then becomes large again during the rotation of the infrared distance sensor, it is determined that the detection position is the upper end of the rubber tube in the vertical direction, and the deflection angle of the infrared distance sensor in the vertical direction at this time is recorded; the thickness data of the rubber tube is calculated according to the change of the deflection angle of the infrared distance sensor on the rubber tube; S2: When the infrared distance sensor is rotated downward from the upper end of the rubber tube in the vertical direction, the detection data changes from large to small, and the displacement of the rubber tube on the rubber tube is equal to the thickness data of the rubber tube, it is determined that the detection position is the lower end of the rubber tube in the vertical direction; the width data of the rubber tube in the vertical direction is calculated according to the deflection angle data from the upper end to the lower end of the rubber tube , and then the center point is positioned at half of the width data of the rubber tube end plane, and then the angle is rotated in the horizontal direction, the width data of the rubber tube in the horizontal direction is calculated, and then the diameter data of the rubber tube is calculated; S3: When the preset transmission backlog length data of the rubber tube is less than the preset length threshold , the cutting disc does not displace due to mutual extrusion and friction between the cutting disc and the rubber tube when the cutting disc resets after completing the cutting operation of the rubber tube, the extension and retraction speed of the electric push rod , the time spent, the extension and retraction speed data , the push rod adjustment signal is generated according to the extension and retraction speed data, and the push rod adjustment signal is transmitted to the execution module.

[0013] Preferably, the analysis module performs the following analysis steps for the error: K1: Let the standard moving speed be , the actual moving speed be , and the cutting time be , the moving distance corresponding to the standard moving speed , the actual moving distance , the cutting length error ; assuming that the elastic elongation of the rubber tube before cutting due to force is , the elastic retraction amount after cutting is , the elastic deformation error ; K2: assuming that the additional displacement deviation amount due to jamming or friction resistance change is , the friction length error ; the distance value measured by the infrared distance sensor is , the actual accurate distance is , the measurement error of the infrared distance sensor ; K3: combining the above error parts, we get , if the total error data is greater than the preset error threshold, a clamping signal is generated and transmitted to the execution module.

[0014] Preferably, the cutting method comprises the following steps: M1: Place the rubber tube between the supporting roller and the extrusion roller, and control the extrusion roller to clamp the rubber tube through the tension spring. The second motor controls the rotation of the supporting roller to perform the feeding operation of the rubber tube. When one end of the rubber tube abuts against the baffle, the rubber tube that continues to feed pushes the baffle to move, and the compression spring shrinks and deforms. The infrared distance sensor monitors the movement distance of the baffle. When the monitored distance data reaches the set distance data, the rotating cutting disc performs the cutting operation of the rubber tube. The cut rubber tube slides out along the front arc surface of the supporting seat, and is automatically discharged; M2: The analysis module analyzes the size data of one end of the rubber tube when the distance data monitored by the infrared distance sensor reaches the set distance data, determines the diameter data of the rubber tube, and calculates the extension speed of the electric push rod according to the diameter data and the transmission speed data, then generates a push rod adjustment signal and transmits it to the execution module; then analyze the error data caused by movement, friction, measurement and elastic deformation, and determine whether it affects the cutting precision. If it does, a clamping signal is generated and transmitted to the execution module; M3: After receiving the clamping signal, the execution module performs the de-energization operation on the extension spring connected to the second sliding block and the retractable baffle, so that the de-energized extension spring quickly pops out to clamp the rubber tube between the supporting seat and the retractable baffle. Then the execution module performs the operation corresponding to the push rod adjustment signal according to the extension speed data to quickly perform the cutting operation.

[0015] Compared with the prior art, the present application has the following advantages: By the cooperation of the baffle and the infrared distance sensor, the cutting length of the rubber tube can be accurately controlled, and the convenience and accuracy of the cutting operation of the rubber tube are improved; by the cooperation of the supporting seat and the baffle, the rubber tube can be automatically discharged after cutting, and the cutting efficiency of the rubber tube is improved; by the cooperation of the extrusion roller and the supporting roller, the rubber tube can be clamped and fed, and the work efficiency of the feeding during the cutting operation of the rubber tube is improved; by the cooperation of the compression spring and the moving block, the cutting length of the rubber tube can be monitored; the device can improve the efficiency of the feeding, cutting and discharging operations of the rubber tube. By the cooperative work of the electric push rod, the infrared distance sensor and the control assembly, the movement and cutting timing of the cutting disc can be accurately controlled; before cutting, the analysis module calculates the extension and retraction speed of the electric push rod according to the diameter and transmission speed of the rubber tube, so that the cutting disc can quickly and accurately complete the cutting operation, the displacement of the rubber tube caused by slow cutting speed is avoided, and the rubber tube is clamped by the control clamping plate, so that the rubber tube incision is horizontal, thereby effectively reducing the cutting length error and ensuring that the size precision of the cut rubber tube meets the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings: Figure 1 The overall three-dimensional structure schematic diagram of the present application is shown in the figure; Figure 2 The overall three-dimensional structure schematic diagram of the present application is shown in the figure; Figure 3 The supporting seat and the infrared distance sensor connection schematic diagram of the present application is shown in the figure; Figure 4 The supporting roller and the extrusion roller position schematic diagram of the present application is shown in the figure; Figure 5 The system flowchart of the present application is shown in the figure.

[0017] In the figure, the serial number is: 1, base; 2, supporting column; 3, cutting groove; 4, cutting disc; 5, connecting rod; 6, first motor; 7, electric push rod; 8, supporting seat; 9, guide rod; 10, moving block; 11, baffle; 12, compression spring; 13, supporting block; 14, infrared distance sensor; 15, positioning plate; 16, supporting roller; 17, second motor; 18, extension spring; 19, lifting block; 20, extrusion roller. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0019] Embodiment: see Figures 1-5 The cutting device and method for processing automobile rubber pipes in the application, comprising a base 1, the bottom surface of the base 1 is provided with support columns 2 at four corners, and a cutting groove 3 is longitudinally formed on one side of the top surface of the base 1, and a cutting assembly is arranged in the cutting groove 3, the cutting assembly comprises a cutting disc 4, a connecting rod 5, a first motor 6 and an electric push rod 7; the base 1 is convenient for installing the cutting assembly; the cutting assembly is convenient for cutting rubber pipes; an installation groove is formed at the front end of the connecting rod 5, the cutting disc 4 is rotatably connected in the installation groove, the first motor 6 is installed on one side of the connecting rod 5, the output shaft of the first motor 6 is connected with the cutting disc 4, the rear end of the connecting rod 5 is connected with the output shaft of the electric push rod 7, and the electric push rod 7 is installed on the top surface of the base 1; the connecting rod 5 is convenient for connecting the cutting disc 4; the cutting disc 4 is convenient for cutting rubber pipes; the first motor 6 is convenient for controlling the rotation of the cutting disc 4; the electric push rod 7 is convenient for controlling the movement of the cutting disc 4; a supporting seat 8 is horizontally installed on the other side of the top surface of the base 1, the front end surface of the supporting seat 8 is arc-shaped, a cavity is formed in the supporting seat 8, a guide rod 9 is horizontally fixed in the cavity, a moving block 10 is slidably connected to the outer side of the guide rod 9, a baffle 11 is fixedly connected to the upper end of the moving block 10, the lower end of the baffle 11 penetrates through the cavity, a compression spring 12 is arranged on the other side of the moving block 10 and sleeved on the outer side of the guide rod 9; the supporting seat 8 is convenient for supporting rubber pipes; the guide rod 9 is convenient for controlling the movement and guidance of the moving block 10; the moving block 10 is convenient for connecting the baffle 11; and the compression spring 12 is convenient for controlling the reset of the moving block 10.

[0020] In the application, the other side of the supporting seat 8 is provided with a supporting block 13 installed on the top surface of the base 1, and the top surface of the supporting block 13 is provided with an infrared distance sensor 14 in the middle, and the emitting end of the infrared distance sensor 14 is opposite to the baffle 11; the infrared distance sensor 14 is installed through the supporting block 13; the length of the cut rubber pipe is detected through the infrared distance sensor 14, and the model of the infrared distance sensor 14 is HOA0973-N51; the top surface of the base 1 is provided with positioning plates 15 at the front and rear ends of one side, the positioning plates 15 are arranged on one side of the cutting groove 3, the supporting rollers 16 are rotatably connected between the lower ends of the two positioning plates 15, the front end surface of the front positioning plate 15 is provided with a second motor 17 below the front end surface, and the output shaft of the second motor 17 is connected with the supporting roller 16 through a shaft coupling; the supporting roller 16 is installed through the positioning plate 15; the rubber pipe is supported through the supporting roller 16; the rotation of the supporting roller 16 is controlled through the second motor 17; the sliding grooves are formed above the front end surfaces of the two positioning plates 15, the lifting blocks 19 are slidably connected in the sliding grooves, the lifting blocks 19 are fixedly connected with the tension springs 18 at the bottom surfaces, the other ends of the tension springs 18 are fixedly connected with the sliding grooves, and the extrusion rollers 20 are rotatably connected between the two lifting blocks 19, and the middle part of the extrusion roller 20 is inwardly recessed; the extrusion roller 20 is installed through the lifting block 19; the extrusion roller 20 is controlled to downwardly extrude the rubber pipe through the tension spring 18; the rubber pipe is extruded through the extrusion roller 20.

[0021] The base 1 is provided with folding clamps at both sides of the position corresponding to the cutting disc 4, the surface of the base 1 is provided with sliding grooves at the positions corresponding to the folding clamps, the first sliding blocks are installed in the sliding grooves at the positions corresponding to the folding clamps, the first sliding blocks are connected with the folding clamps, the second sliding blocks are arranged in the sliding grooves at positions corresponding to the first sliding blocks and at a certain distance before and after the first sliding blocks, the second sliding blocks are fixedly connected with the first sliding blocks through a plurality of connecting rods, so that the folding clamps are more stable when moving in position, the second sliding blocks are connected with the sliding grooves through the extension springs, and the base 1 is also provided with extension springs at the positions corresponding to the folding clamps. The controller of the second motor 17 is provided with a control assembly, and the control assembly includes an acquisition module, an analysis module and an execution module. After the baffle 11 is removed, the change of the moving distance of the rubber pipe per unit time is detected, and the moving speed data of the rubber pipe is calculated After the moving data of the rubber pipe is obtained, the infrared distance sensor 14 is vertically rotated in an angle when the rubber pipe stops moving and is cut, and when the detection data changes from large to small and then becomes large again during the rotation of the infrared distance sensor 14, it is determined that the detection position is the upper end of the rubber pipe in the vertical direction, and the deflection angle of the infrared distance sensor 14 in the vertical direction at this time Recording; calculating the thickness data of the rubber tube based on the change in the deflection angle of the infrared distance sensor 14 on the rubber tube; when the infrared distance sensor 14 rotates downward from the upper end of the rubber tube in the vertical direction, the detection data changes from large to small and the displacement on the rubber tube is equal to the thickness data of the rubber tube, it is determined that the detection position is the lower end of the rubber tube in the vertical direction; calculating the width data of the rubber tube in the vertical direction based on the deflection angle data from the upper end to the lower end of the rubber tube in the vertical direction , then the width data is used on the rubber tube end plane The center point is located at half of the horizontal direction, and then the horizontal angle is rotated to adjust the width data of the rubber tube in the horizontal direction. Calculation is performed, then the diameter data of the rubber tube ; The transmission backlog length data of the preset rubber hose is less than the preset length threshold When the cutting disc 4 completes the cutting operation of the rubber tube and resets, the displacement of the rubber tube will not be caused by the mutual squeezing and friction between the cutting disc and the rubber tube. The telescopic speed of the electric push rod 7 is , spend time , according to the telescopic speed data Generate a push rod adjustment signal and transmit the push rod adjustment signal to the execution module.

[0022] If the speed of the baffle 11 under the push of the rubber tube is not constant, then the distance moved will fluctuate within the same time interval, thereby affecting the accuracy of the cutting length; assuming the standard moving speed is , the actual moving speed is , cutting time is , according to the moving distance corresponding to the standard moving speed , actual moving distance , then the cutting length error ; When the guide rails and other components of the baffle are worn or poorly lubricated, the baffle may become stuck during movement, causing it to not move smoothly according to the push of the rubber tube, or the friction resistance may be unstable, resulting in different smoothness of each movement. Let the additional displacement deviation caused by the stuck or friction resistance change be , then the friction length error ; The infrared distance sensor 14 itself has a limitation in measurement accuracy. If the accuracy is not enough, the measured distance of the baffle movement will deviate from the actual distance. The distance value measured by the infrared distance sensor 14 is The actual accurate distance is , then the measurement error of the infrared distance sensor 14 is ; The rubber tube has elasticity, and in the case of pushing against the baffle and instant force, elastic deformation may occur, so that the length in actual cutting is inconsistent with the length in ideal state; assuming that the elastic elongation of the rubber tube before cutting due to force is , the elastic retraction amount after cutting is , and the elastic deformation error is ; The total error data is obtained by combining the above error parts, and if the total error data is greater than a preset error threshold, a clamping signal is generated and transmitted to the execution module.

[0023] Working principle: when the present application is used, first connect all the electrical equipment wires and power on, then lift the extrusion roller 20 upwards, at this time the tension spring 18 is in a stretched state, then place the rubber tube between the supporting roller 16 and the extrusion roller 20, control the extrusion roller 20 to extrude the rubber tube downwards through the tension spring 18, then start the second motor 17, control the lower end supporting roller 16 to rotate through the second motor 17, and then control the one end of the rubber tube to move to the other side of the base 1, when abutting against the side of the baffle 11, the rubber tube continues to feed, thereby pushing the baffle 11 to move to the other side, at this time the compression spring 12 is compressed through the moving block 10, when the baffle 11 moves, start the infrared distance sensor 14, detect the moving distance of the baffle 11 through the infrared distance sensor 14, thereby obtaining the cutting length of the rubber tube; when reaching the cutting length, start the first motor 6 and the electric push rod 7, control the rotating cutting disc 4 to cut the rubber tube forward, when the cutting is completed, the front end face of the supporting seat 8 is arc-shaped, thereby controlling the rubber tube after cutting to slide out; finally, all the electrical equipment is powered off.

[0024] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A cutting device for processing automobile rubber tubes, comprising a base (1), characterized in that: Support columns (2) are installed at the four corners of the bottom surface of the base (1), and a cutting groove (3) is longitudinally opened on one side of the top surface of the base (1), and a cutting assembly is arranged in the cutting groove (3), and the cutting assembly includes a cutting disc (4), a connecting rod (5), a first motor (6) and an electric push rod (7); A control component is provided inside the controller of the second motor (17), and the control component includes an acquisition module, an analysis module and an execution module; The acquisition module detects the size data of one end of the rubber tube, detects the transmission speed data of the rubber tube, and transmits the detected size and speed data to the analysis module; The analysis module analyzes the size data of one end of the rubber tube, determines the diameter data of the rubber tube, and calculates the extension and contraction speed of the electric push rod (7) based on the diameter data and the transmission speed data, and then generates a push rod adjustment signal, and transmits the push rod adjustment signal to the execution module; analyzes the error data caused by movement, friction, measurement and elastic deformation, and determines whether it affects the cutting accuracy. If it does, it generates a clamping signal and transmits the clamping signal to the execution module; The execution module receives the signal transmitted by the analysis module and then performs the corresponding operation.

2. The cutting device for processing automotive rubber tubes according to claim 1, characterized in that: The front end of the connecting rod (5) is provided with a mounting groove, the cutting disc (4) is placed in the mounting groove and is rotatably connected, the first motor (6) is installed on one side of the connecting rod (5), and the output shaft of the first motor (6) is connected to the cutting disc (4), and the rear end of the connecting rod (5) is connected to the output shaft of the electric push rod (7), and the electric push rod (7) is installed on the top surface of the base (1).

3. The cutting device for processing automobile rubber tubes according to claim 2, characterized in that: A supporting seat (8) is laterally mounted on the other side of the top surface of the base (1), the front end surface of the supporting seat (8) is arc-shaped, and a cavity is provided inside the supporting seat (8), a guide rod (9) is laterally fixed in the cavity, a moving block (10) is slidably connected to the outside of the guide rod (9), a baffle (11) is fixed to the upper end of the moving block (10), the lower end of the baffle (11) passes through the cavity, and a compression spring (12) is provided on the other side of the moving block (10), and the compression spring (12) is sleeved on the outside of the guide rod (9).

4. The cutting device for processing automobile rubber tubes according to claim 3, characterized in that: A supporting block (13) is provided on the other side of the supporting seat (8), the supporting block (13) is mounted on the top surface of the base (1), and an infrared distance sensor (14) is mounted in the middle of the top surface of the supporting block (13), the emitting end of the infrared distance sensor (14) is facing the baffle (11).

5. The cutting device for processing automobile rubber tubes according to claim 4, characterized in that: Positioning plates (15) are fixedly connected to the front and rear ends of one side of the top surface of the base (1), and the positioning plates (15) are placed on one side of the cutting groove (3). A supporting roller (16) is rotatably connected between the lower ends of the two positioning plates (15). A second motor (17) is installed below the front end surface of the front positioning plate (15), and the output shaft of the second motor (17) is connected to the supporting roller (16) through a coupling.

6. The cutting device for processing automobile rubber tubes according to claim 5, characterized in that: A slide groove is provided above the front end surface of the two positioning plates (15), and a lifting block (19) is slidably connected in the slide groove. A tension spring (18) is fixed to the bottom surface of the lifting block (19), and the other end of the tension spring (18) is fixed to the slide groove. An extrusion roller (20) is rotatably connected between the two lifting blocks (19), and the middle part of the extrusion roller (20) is concave inward.

7. The cutting device for processing automobile rubber tubes according to claim 6, characterized in that: Retractable splints are provided on both sides of the base (1) at positions corresponding to the cutting disc (4), a slide groove is provided on the surface of the base (1) at positions corresponding to the retractable splints, a first slider is installed inside the slide groove at positions corresponding to the retractable splints, the first slider is connected to the retractable splint, a second slider is provided inside the slide groove within a set distance corresponding to the first slider, the second slider is fixedly connected to the first slider through a plurality of connecting rods, the second slider is connected inside the slide groove through a telescopic spring, and a telescopic spring is also provided at positions corresponding to the retractable splints on the base (1).

8. The cutting device for processing automobile rubber tubes according to claim 7, characterized in that: The analysis module performs the following analysis steps for adjusting the speed of the electric push rod (7): S1: After removing the baffle (11), the change in the moving distance of the rubber tube per unit time is detected and the moving speed data of the rubber tube is calculated. After obtaining the movement data of the rubber tube, when the rubber tube stops moving and the cutting operation is performed, the infrared distance sensor (14) is rotated in the vertical direction of the angle. When the detection data changes from large to small and then becomes large during the rotation of the infrared distance sensor (14), it is determined that the detection position is the upper end of the rubber tube in the vertical direction. The vertical deflection angle of the infrared distance sensor (14) at this time is Recording; calculating the thickness data of the rubber tube according to the change in the deflection angle of the infrared distance sensor (14) on the rubber tube; S2: When the infrared distance sensor (14) rotates downward from the upper end of the rubber tube in the vertical direction, and the detection data changes from large to small and the displacement on the rubber tube is equal to the thickness data of the rubber tube, it is determined that the detection position is the lower end of the rubber tube in the vertical direction; based on the deflection angle data from the upper end to the lower end of the rubber tube in the vertical direction, the width data of the rubber tube in the vertical direction is calculated. , then the width data is used on the rubber tube end plane The center point is located at half of the horizontal direction, and then the horizontal angle is rotated to adjust the width data of the rubber tube in the horizontal direction. Calculation is performed, then the diameter data of the rubber tube ; S3: The transmission backlog length data of the preset rubber hose is less than the preset length threshold When the cutting disc (4) completes the cutting operation of the rubber tube and resets, the displacement of the rubber tube will not be caused by the mutual squeezing and friction between the cutting disc (4) and the rubber tube. The extension speed of the electric push rod (7) is , spend time , according to the telescopic speed data Generate a push rod adjustment signal and transmit the push rod adjustment signal to the execution module.

9. The cutting device for processing automobile rubber tubes according to claim 8, characterized in that: The analysis module performs error analysis steps as follows: K1: Assume the standard moving speed is , the actual moving speed is , cutting time is , according to the moving distance corresponding to the standard moving speed , actual moving distance , then the cutting length error ; Assume that the elastic elongation of the rubber tube due to the force before cutting is , the elastic retraction after cutting is , then the elastic deformation error ; K2: Assume that the additional displacement deviation caused by the change of jamming or friction resistance is , then the friction length error ; The distance value measured by the infrared distance sensor (14) is The actual accurate distance is , then the measurement error of the infrared distance sensor (14) ; K3: Combining the above error items, we can get , if the total error data If the error is greater than a preset threshold, a clamping signal is generated and transmitted to the execution module.

10. A cutting method for the cutting device for processing automotive rubber hoses according to claims 1 to 9, characterized in that: The cutting method comprises the following steps: M1: The rubber tube is placed between the supporting roller (16) and the squeezing roller (20), and the squeezing roller (20) is controlled by the tension spring (18) to clamp the rubber tube. The second motor (17) controls the supporting roller (16) to rotate and feed the rubber tube. When one end of the rubber tube abuts the baffle (11), the rubber tube continues to be fed to push the baffle (11) to move, and the compression spring (12) contracts and deforms. The infrared distance sensor (14) monitors the moving distance of the baffle (11). When the monitored distance data reaches the set distance data, the rotating cutting disc (4) is controlled to cut the rubber tube. The cut rubber tube slides out along the front arc surface of the supporting seat (8) and is automatically unloaded. M2: When the distance data monitored by the infrared distance sensor (14) reaches the set distance data, the analysis module analyzes the size data of one end of the rubber tube, determines the diameter data of the rubber tube, and calculates the extension and contraction speed of the electric push rod (7) based on the diameter data and the transmission speed data, and then generates a push rod adjustment signal and transmits the push rod adjustment signal to the execution module; then analyzes the error data caused by movement, friction, measurement and elastic deformation, and determines whether it affects the cutting accuracy. If it does, it generates a clamping signal and transmits the clamping signal to the execution module; M3: After the execution module receives the clamping signal, it cuts off the power to the telescopic spring connecting the second slider and the retractable splint, so that the telescopic spring pops out quickly after the power is cut off and clamps the rubber tube between the support seat (8) and the retractable splint; the execution module then executes the operation corresponding to the push rod adjustment signal, and according to the telescopic speed data Perform cutting operations quickly.

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