A cold-drawing oil cylinder pipe machining clamping mechanism

Abstract

This utility model relates to the field of cold-drawn tube processing technology, specifically disclosing a clamping mechanism for cold-drawn hydraulic cylinder tube processing. It includes a base with a transverse sliding groove along its length at its top; at least two support seats arranged in a front-to-back configuration, fixed to the top of the base; a vertically connected longitudinal frame on one side of each support seat, with a crossbeam at the top of the longitudinal frame; a lower clamping seat below the crossbeam, with an electric telescopic rod at the top of the crossbeam, the telescopic end of which passes through the crossbeam and is fixedly connected to the lower clamping seat; two sets of lifting adjustment frames symmetrically arranged between adjacent support seats, the bottom of which is slidably connected to the transverse sliding groove via a sliding block, allowing the two sets of lifting adjustment frames to move relative to or away from each other. This clamping mechanism achieves multi-directional precise clamping, intelligent automatic adjustment, and pressure protection, improving the processing efficiency, accuracy, and safety of cold-drawn hydraulic cylinder tubes.

Description

Technical Field

[0001] This utility model relates to the field of cold-drawn tube processing technology, and specifically discloses a clamping mechanism for cold-drawn hydraulic cylinder tube processing. Background Technology

[0002] In the processing of cold-drawn hydraulic cylinder tubes, stable and precise clamping is a key step in ensuring processing accuracy and product quality. Only by firmly clamping the hydraulic cylinder tube can its position be kept fixed during processing, avoiding problems such as dimensional deviations and surface quality damage caused by shaking or displacement.

[0003] However, existing clamping mechanisms for cold-drawn hydraulic cylinder tube processing have several shortcomings: First, the clamping methods are relatively simple, mostly only able to clamp the cylinder tube from a single direction, making it difficult to achieve omnidirectional stable fixation. During processing, the cylinder tube is prone to rotation or displacement, failing to meet the requirements of high-precision machining. Second, existing clamping mechanisms have poor adaptability to cold-drawn hydraulic cylinder tubes of different specifications and outer diameters. Frequent manual adjustments to the position and spacing of the clamping components are required, making the operation cumbersome, reducing production efficiency, and easily leading to inaccurate clamping due to human error, affecting processing quality. Third, existing mechanisms lack effective monitoring and adjustment methods for controlling clamping force. Excessive clamping force may damage the surface of the cylinder tube, causing defects such as dents and scratches; insufficient clamping force cannot guarantee the stability of the cylinder tube during processing, easily leading to loosening. Furthermore, existing clamping mechanisms have a low degree of automation, relying heavily on manual operation, making it difficult to achieve efficient integration with modern automated production lines, increasing production costs and labor input.

[0004] In view of the problems existing in the above-mentioned technologies, there is an urgent need to develop a cold-drawn cylinder tube processing clamping mechanism that can achieve multi-directional precise clamping, automatically adapt to different specifications of cylinder tubes, effectively control the clamping force, and has a high degree of automation, so as to improve the processing quality and production efficiency of cold-drawn cylinder tubes and meet the needs of the industry's continuous development. Utility Model Content

[0005] This utility model proposes a clamping mechanism for cold-drawn hydraulic cylinder tube processing. This clamping mechanism achieves efficient and stable clamping of hydraulic cylinder tubes of different specifications through multi-directional precise clamping, automatic adjustment of spacing and height, pressure monitoring and protection, and intelligent control, thereby improving processing accuracy and safety and reducing the difficulty of manual operation.

[0006] This utility model is implemented as follows: a clamping mechanism for cold-drawn hydraulic cylinder tube processing includes: a base, the top of which has a transverse sliding groove along the length direction;

[0007] At least two support seats are arranged one in front of the other, and the support seats are fixed to the top of the base; each support seat has a vertically connected longitudinal frame on one side, which is fixed to the top of the base, and a crossbeam is provided at the top of the longitudinal frame; a lower clamping seat is provided below the crossbeam, and an electric telescopic rod is provided at the top of the crossbeam, and the telescopic end of the electric telescopic rod passes through the crossbeam and is fixedly connected to the lower clamping seat.

[0008] Two sets of lifting adjustment frames are symmetrically arranged between two adjacent support seats. The bottom of the lifting adjustment frame is slidably connected to the horizontal slide groove through a sliding block. The two sets of lifting adjustment frames can move relative to each other or away from each other.

[0009] Each set of lifting adjustment frames is equipped with a side clamping seat that can slide up and down;

[0010] V-shaped clamping grooves are provided on both sides of the support base and the lower clamping base, as well as on the side of the side clamping base away from the lifting adjustment frame.

[0011] The transverse sliding groove is equipped with a bidirectional screw, the two ends of which are threaded through two sliding blocks and rotatably connected to the transverse sliding groove. A worm gear reducer motor is provided on one side of the base, and the output end of the worm gear reducer motor is fixed coaxially with the bidirectional screw.

[0012] As a preferred embodiment of the cold-drawn cylinder tube processing clamping mechanism of this utility model, the lifting adjustment frame includes a vertically arranged support, a longitudinal sliding groove opened along the height direction of the support, and a slider slidably disposed in the longitudinal sliding groove.

[0013] The slider is fixedly connected to the side clamping seat. A servo motor is provided on the top of the bracket. The output end of the servo motor is connected to a longitudinal threaded rod. The lower end of the longitudinal threaded rod passes through the slider and drives the slider to rise and fall along the longitudinal groove through the threaded engagement.

[0014] As a preferred embodiment of the cold-drawn cylinder tube processing clamping mechanism of this utility model, an elastic pad is embedded in the V-shaped clamping groove, and multiple pressure sensors are evenly distributed in all the elastic pads, with the detection surface of the pressure sensors facing the opening direction of the V-shaped clamping groove.

[0015] As a preferred embodiment of the cold-drawn cylinder tube processing clamping mechanism of this utility model, a controller is provided on the longitudinal frame. The controller is electrically connected to a pressure sensor, an electric telescopic rod, a worm gear reducer motor, and a servo motor. When the pressure sensor detection value in the V-shaped clamping groove of the side clamping seat reaches a preset threshold, the controller controls the worm gear reducer motor to stop running.

[0016] As a preferred embodiment of the cold-drawn cylinder tube processing clamping mechanism of this utility model, a first distance sensor is provided at the top center of the support base, and a second distance sensor is provided at the bottom center of the lower clamping base.

[0017] The controller calculates the outer diameter of the cold-drawn cylinder tube based on the real-time distance difference between the first distance sensor and the second distance sensor. Based on the outer diameter data, the controller adjusts the height of the side clamping seat via a servo motor to ensure that the center line of the V-shaped clamping groove coincides with the axis of the cylinder tube.

[0018] As a preferred embodiment of the cold-drawn cylinder tube processing clamping mechanism of this utility model, the elastic pad is made of polyurethane rubber with a thickness of 8mm, and the pressure sensor is a flexible thin-film piezoresistive sensor, the surface of which is attached to the inner wall of the elastic pad.

[0019] The beneficial effects of this utility model are:

[0020] 1. Through the V-shaped clamping grooves of the lower clamping seat, side clamping seat and support seat, this cold-drawn hydraulic cylinder tube processing clamping mechanism achieves efficient and stable clamping of hydraulic cylinder tubes of different specifications through multi-directional precise clamping, automatic adjustment of spacing and height, pressure monitoring and protection and intelligent control, thereby improving processing accuracy and safety and reducing the difficulty of manual operation.

[0021] 2. The side clamping seat spacing is automatically adjusted by using a bidirectional screw and worm gear reducer motor, and the side clamping seat height is automatically adjusted by using a servo motor and longitudinal threaded rod. Combined with a distance sensor and controller, it can automatically identify cold-drawn cylinder tubes of different outer diameters and adjust the clamping position and force, which greatly improves the versatility and working efficiency of the clamping mechanism and reduces manual operation and adjustment time.

[0022] 3. An elastic pad and a pressure sensor are installed in the V-shaped clamping groove to monitor the clamping pressure in real time. When the pressure reaches the preset threshold, the controller automatically controls the relevant components to stop operating, preventing excessive clamping force from damaging the cylinder tube. At the same time, the elastic pad protects the surface of the cylinder tube from damage, improving the safety and reliability of the clamping process.

[0023] 4. The controller is electrically connected to all components, realizing the automation and intelligent control of the entire clamping process. Operators only need to set relevant parameters, and the clamping mechanism can automatically complete the clamping and adjustment of the cylinder tube, reducing the difficulty of operation and improving production efficiency and the stability of processing quality. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 for Figure 1 A schematic diagram of the AA-direction structure.

[0027] Figure 3 This is a schematic diagram of the structure of the vibratory feeder and pressure sensor of this utility model.

[0028] Figure 4 This is a top view of the base of this utility model.

[0029] The markings in the diagram are: 1. Base; 2. Horizontal slide groove; 3. Support seat; 4. Longitudinal frame; 5. Crossbeam; 6. Lower clamping seat; 7. Electric telescopic rod; 8. Lifting adjustment frame; 9. Slide seat; 10. Side clamping seat; 11. V-shaped clamping groove; 12. Bidirectional screw; 13. Worm gear reducer motor; 14. Bracket; 15. Longitudinal slide groove; 16. Slider; 17. Servo motor; 18. Longitudinal threaded rod; 19. Elastic pad; 20. Pressure sensor; 21. Controller; 22. First distance sensor; 23. Second distance sensor. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0031] Please see Figure 1-4 A clamping mechanism for cold-drawn hydraulic cylinder tube processing, comprising:

[0032] The base 1 has a horizontal sliding groove 2 formed on its top along the length direction;

[0033] At least two support seats 3 are arranged in a front-to-back arrangement, and the support seats 3 are fixed to the top of the base 1; each support seat 3 has a vertically connected longitudinal frame 4 on one side, which is fixed to the top of the base 1, and a crossbeam 5 is provided at the top of the longitudinal frame 4; a lower clamping seat 6 is provided below the crossbeam 5, and an electric telescopic rod 7 is provided at the top of the crossbeam 5. The telescopic end of the electric telescopic rod 7 passes through the crossbeam 5 and is fixedly connected to the lower clamping seat 6.

[0034] Two sets of lifting adjustment frames 8 are symmetrically arranged between two adjacent support bases 3. The bottom of the lifting adjustment frame 8 is slidably connected to the horizontal slide groove 2 through the slide seat 9. The two sets of lifting adjustment frames 8 can move relative to each other or away from each other.

[0035] Each set of lifting adjustment frames 8 is equipped with a side clamping seat 10 that can slide up and down;

[0036] V-shaped clamping grooves 11 are provided on both sides of the support base 3 and the lower clamping base 6, and on the side of the side clamping base 10 away from the lifting adjustment frame 8.

[0037] The transverse slide groove 2 is provided with a bidirectional screw 12. The two ends of the bidirectional screw 12 are threaded through the two slide blocks 9 and are rotatably connected to the transverse slide groove 2. A worm gear reducer motor 13 is provided on one side of the base 1. The output end of the worm gear reducer motor 13 is coaxially fixed with the bidirectional screw 12.

[0038] In this embodiment: the cold-drawn cylinder tube is placed between the support seat 3 and the lower clamping seat 6. The worm gear reducer motor 13 is started, which drives the bidirectional screw 12 to rotate, causing the two sets of lifting adjustment frames 8 to move relative to each other, thus moving the side clamping seat 10 closer to the cylinder tube. At the same time, the controller 21 calculates the outer diameter of the cylinder tube based on the distance difference detected by the first distance sensor 22 and the second distance sensor 23, and controls the servo motor 17 to drive the longitudinal thread rod 18 to rotate, adjusting the height of the side clamping seat 10 so that the center line of the V-shaped clamping groove 11 of the side clamping seat 10 is aligned with the axis of the cylinder tube. The electric telescopic rod 7 is started, which drives the lower clamping seat 6 to rise, so that the V-shaped clamping groove 11 of the lower clamping seat 6 contacts the bottom of the cylinder tube and applies a certain clamping force. As the side clamping seat 10 continues to approach the cylinder tube, the V-shaped clamping groove 11 of the side clamping seat 10 also contacts the side of the cylinder tube. The pressure sensor 20 detects the clamping pressure in real time and transmits the pressure signal to the controller 2. 1. When the pressure sensor 20 detects a value in the V-shaped clamping groove 11 of the side clamping seat 10 and reaches a preset threshold, the controller 21 controls the worm gear reducer motor 13 to stop running. At this time, the cylinder tube is stably clamped between the support seat 3, the lower clamping seat 6, and the side clamping seat 10. During the cold drawing of the cylinder tube, the pressure sensor 20 continuously monitors the clamping pressure. If the pressure changes, the controller 21 controls the electric telescopic rod 7 to adjust the height of the lower clamping seat 6, or controls the worm gear reducer motor 13 to finely adjust the spacing of the side clamping seat 10, in order to maintain a suitable clamping force and ensure that the cylinder tube is stable in position during the processing and will not be displaced or rotated. After the processing is completed, the controller 21 controls the electric telescopic rod 7 to drive the lower clamping seat 6 to descend, and at the same time controls the worm gear reducer motor 13 to drive the bidirectional screw 12 to rotate in the opposite direction, so that the two sets of lifting adjustment frames 8 move in opposite directions, and the side clamping seat 10 moves away from the cylinder tube, thereby releasing the clamping of the cylinder tube and making it easier to take out the processed cylinder tube.

[0039] The clamping mechanism enables the cold-drawn cylinder tube to be clamped and fixed from multiple directions, including top, bottom, and sides, which can adapt to different processing requirements, ensure the stability of the cylinder tube during processing, and improve processing accuracy and quality. At the same time, the setting of the bidirectional screw 12 and the worm gear reducer motor 13 allows the spacing of the side clamping seat 10 to be automatically adjusted, improving the versatility and working efficiency of the clamping mechanism.

[0040] As a technical optimization of this utility model, the lifting adjustment frame 8 includes a vertically arranged support 14, a longitudinal sliding groove 15 opened along the height direction of the support 14, and a slider 16 slidably disposed in the longitudinal sliding groove 15.

[0041] The slider 16 is fixedly connected to the side clamping seat 10. The top of the bracket 14 is equipped with a servo motor 17. The output end of the servo motor 17 is connected to a longitudinal threaded rod 18. The lower end of the longitudinal threaded rod 18 passes through the slider 16 and drives the slider 16 to rise and fall along the longitudinal slide groove 15 through the threaded engagement.

[0042] In this embodiment: the servo motor 17 drives the longitudinal threaded rod 18 to rotate, which in turn drives the slider 16 and the side clamping seat 10 to rise and fall along the longitudinal sliding groove 15, thereby realizing the precise automatic adjustment of the height of the side clamping seat 10. This allows for better adaptation to cold-drawn cylinder tubes of different diameters and shapes, further improving the adaptability and clamping accuracy of the clamping mechanism.

[0043] As a technical optimization of this utility model, an elastic pad 19 is embedded in the V-shaped clamping groove 11, and multiple pressure sensors 20 are evenly distributed in all the elastic pads 19. The detection surface of the pressure sensor 20 faces the opening direction of the V-shaped clamping groove 11.

[0044] In this embodiment: the elastic pad 19 protects the surface of the cylinder tube and prevents clamping damage; the pressure sensor 20 can monitor the clamping pressure in real time and provide pressure data to the controller 21, so that the controller 21 can adjust the clamping force according to the actual pressure, avoid damage to the cylinder tube caused by improper clamping force, and ensure the safety and reliability of the clamping process.

[0045] As a technical optimization of this utility model, a controller 21 is provided on the longitudinal frame 4. The controller 21 is electrically connected to the pressure sensor 20, the electric telescopic rod 7, the worm gear reducer motor 13, and the servo motor 17. When the pressure sensor 20 detects the value in the V-shaped clamping groove 11 of the side clamping seat 10 and reaches the preset threshold, the controller 21 controls the worm gear reducer motor 13 to stop running.

[0046] In this embodiment: when the pressure sensor 20 detects a value in the V-shaped clamping groove 11 of the side clamping seat 10 and the value reaches a preset threshold, the controller 21 controls the worm gear reducer motor 13 to stop running, thereby realizing automatic control of the clamping force, preventing damage to the cylinder tube due to excessive clamping force caused by excessive adjustment of the side clamping seat 10 spacing, and improving the intelligence and safety of the clamping mechanism.

[0047] As a technical optimization of this utility model, a first distance sensor 22 is provided at the top center of the support base 3, and a second distance sensor 23 is provided at the bottom center of the lower clamping base 6.

[0048] The controller 21 calculates the outer diameter of the cold-drawn cylinder tube based on the real-time distance difference between the first distance sensor 22 and the second distance sensor 23. Based on the outer diameter data, the controller 21 adjusts the height of the side clamping seat 10 through the servo motor 17 to ensure that the center line of the V-shaped clamping groove 11 coincides with the axis of the cylinder tube.

[0049] In this embodiment, the clamping mechanism can automatically identify and accurately clamp cylinder tubes of different outer diameters by using data from the first distance sensor 22 and the second distance sensor 23. This improves the versatility and clamping accuracy of the clamping mechanism and ensures the stability and processing quality of the cylinder tubes during the processing.

[0050] As a technical optimization of this utility model, the elastic pad 19 is made of polyurethane rubber with a thickness of 8mm, and the pressure sensor 20 is a flexible thin-film piezoresistive sensor, the surface of which is attached to the inner wall of the elastic pad 19.

[0051] In this embodiment: the elastic pad 19 is made of polyurethane rubber with a thickness of 8mm, which has good elasticity and wear resistance and can effectively protect the surface of the cylinder tube; the pressure sensor 20 is a flexible thin-film piezoresistive sensor, whose surface is attached to the inner wall of the elastic pad 19, which can accurately detect the clamping pressure, improve the accuracy and reliability of pressure detection, and further ensure the safety and stability of the clamping process.

[0052] Working principle and usage process of this utility model:

[0053] The cold-drawn cylinder tube to be processed is placed on the support base 3, so that the cylinder tube is approximately centered between the support base 3 and the lower clamping base 6. The first distance sensor 22 and the second distance sensor 23 detect the distance to the cylinder tube in real time and transmit the distance signal to the controller 21. The controller 21 calculates the outer diameter of the cylinder tube based on the distance difference, controls the servo motor 17 to drive the longitudinal thread rod 18 to rotate, and adjusts the height of the side clamping base 10 so that the center line of the V-shaped clamping groove 11 of the side clamping base 10 is aligned with the cylinder tube axis. At the same time, the worm gear reducer motor 13 drives the bidirectional screw 12 to rotate, so that the two sets of lifting adjustment frames 8 move relative to each other, and move the side clamping base 10 closer to the cylinder tube. The electric telescopic rod 7 is activated, and the electric telescopic rod 7 drives the lower clamping base 6 to rise. The V-shaped clamping groove 11 of the lower clamping base 6 contacts the bottom of the cylinder tube and gradually applies clamping force. The side clamping base 10 continues to approach the cylinder tube, and its V-shaped clamping groove 11 contacts the side of the cylinder tube. The pressure sensor 20 The clamping pressure is detected and fed back to the controller 21. When the pressure sensor 20 in the V-shaped clamping groove 11 of the side clamping seat 10 reaches the preset threshold, the controller 21 controls the worm gear reducer motor 13 to stop running, at which point the cylinder tube is stably clamped. During the cylinder tube processing, the pressure sensor 20 continuously monitors the clamping pressure. If the pressure deviates from the preset range, the controller 21 controls the electric telescopic rod 7 to adjust the height of the lower clamping seat 6 according to the pressure situation, or controls the worm gear reducer motor 13 to fine-tune the spacing of the side clamping seats 10 to maintain a suitable clamping force and ensure the stability of the cylinder tube during processing. After processing, the controller 21 controls the electric telescopic rod 7 to drive the lower clamping seat 6 to descend, releasing the downward clamping of the cylinder tube. At the same time, the controller controls the worm gear reducer motor 13 to drive the bidirectional screw 12 to rotate in the opposite direction, causing the two sets of lifting adjustment frames 8 to move in opposite directions, and the side clamping seat 10 to move away from the cylinder tube, releasing the lateral clamping of the cylinder tube. The operator removes the finished cylinder tube from the clamping mechanism, completing one processing operation. If a new cold-drawn cylinder tube needs to be processed, the above steps are repeated to perform the next processing operation.

[0054] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A clamping mechanism for cold-drawn hydraulic cylinder tube processing, characterized in that, include: The base (1) has a horizontal sliding groove (2) on its top along the length direction; At least two support seats (3) are arranged in a front-to-back arrangement, and the support seats (3) are fixed to the top of the base (1); each support seat (3) has a vertically arranged longitudinal frame (4) on one side that is fixed to the top of the base (1), and the longitudinal frame (4) has a crossbeam (5) at the top; a lower clamping seat (6) is provided below the crossbeam (5), and an electric telescopic rod (7) is provided at the top of the crossbeam (5). The telescopic end of the electric telescopic rod (7) passes through the crossbeam (5) and is fixedly connected to the lower clamping seat (6); Two sets of lifting adjustment frames (8) are symmetrically arranged between two adjacent support seats (3). The bottom of the lifting adjustment frame (8) is slidably connected to the horizontal slide groove (2) through the slide seat (9). The two sets of lifting adjustment frames (8) can move relative to each other or away from each other. Each set of lifting adjustment frames (8) is provided with a side clamping seat (10) that can slide up and down; V-shaped clamping grooves (11) are provided on both sides of the support base (3) and the lower clamping base (6) opposite to each other, and on the side of the side clamping base (10) away from the lifting adjustment frame (8). The transverse slide groove (2) is provided with a bidirectional screw (12), the two ends of the bidirectional screw (12) are threaded through the two slide blocks (9) and rotatably connected to the transverse slide groove (2). The base (1) is provided with a worm gear reducer motor (13) on one side, and the output end of the worm gear reducer motor (13) is coaxially fixed with the bidirectional screw (12).

2. The clamping mechanism for cold-drawn hydraulic cylinder tube processing according to claim 1, characterized in that: The lifting adjustment frame (8) includes a vertically arranged support (14), a longitudinal sliding groove (15) opened along the height direction of the support (14), and a slider (16) slidably disposed in the longitudinal sliding groove (15); The slider (16) is fixedly connected to the side clamping seat (10). The top of the bracket (14) is provided with a servo motor (17). The output end of the servo motor (17) is connected to a longitudinal threaded rod (18). The lower end of the longitudinal threaded rod (18) passes through the slider (16) and drives the slider (16) to rise and fall along the longitudinal groove (15) through the threaded engagement.

3. The clamping mechanism for cold-drawn hydraulic cylinder tube processing according to claim 1, characterized in that: The V-shaped clamping groove (11) is embedded with an elastic pad (19), and multiple pressure sensors (20) are evenly distributed in all the elastic pads (19). The detection surface of the pressure sensor (20) faces the opening direction of the V-shaped clamping groove (11).

4. The clamping mechanism for cold-drawn hydraulic cylinder tube processing according to claim 3, characterized in that: The longitudinal frame (4) is equipped with a controller (21), which is electrically connected to a pressure sensor (20), an electric telescopic rod (7), a worm gear reducer motor (13), and a servo motor (17). When the pressure sensor (20) in the V-shaped clamping groove (11) of the side clamping seat (10) reaches a preset threshold, the controller (21) controls the worm gear reducer motor (13) to stop running.

5. The clamping mechanism for cold-drawn hydraulic cylinder tube processing according to claim 4, characterized in that: The support base (3) has a first distance sensor (22) at the top center, and the lower clamping base (6) has a second distance sensor (23) at the bottom center; The controller (21) calculates the outer diameter of the cold-drawn cylinder tube based on the real-time distance difference between the first distance sensor (22) and the second distance sensor (23). Based on the outer diameter data, the controller (21) adjusts the height of the side clamping seat (10) through the servo motor (17) to ensure that the center line of the V-shaped clamping groove (11) coincides with the axis of the cylinder tube.

6. The clamping mechanism for cold-drawn hydraulic cylinder tube processing according to claim 3, characterized in that: The elastic pad (19) is made of polyurethane rubber with a thickness of 8mm. The pressure sensor (20) is a flexible thin-film piezoresistive sensor, and its surface is attached to the inner wall of the elastic pad (19).

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