A front fork tube machining and expanding device

Abstract

The utility model discloses a front fork pipe processing pipe expanding device relates to front fork processing technical field, including base, mobile assembly is set up in the top one side of base, and the pipe expanding mechanism is set up in the top one side of mobile assembly, and cooperates with mobile assembly, and the first support seat is symmetrically set up in the other side of base top, and the fixed mechanism is set up in the first support seat and is far from the one side of mobile assembly, and the control panel is set up in the one end of base top, the utility model discloses a mobile assembly and pipe expanding mechanism are set up, make the accurate movement of horizontal direction of front fork pipe in the pipe expanding process under the cooperation of mobile assembly and pipe expanding mechanism, ensure that the pipe expanding position is accurate, and can accurately expand the front end of front fork pipe to the required size, guarantee the accuracy of pipe expanding position and size, reduce the operation failure and material cost, improve the quality and production efficiency of front fork pipe processing.

Description

Technical Field

[0001] This utility model relates to the field of fork processing technology, specifically to a fork tube processing and expansion device. Background Technology

[0002] The fork tube is the main part of a bicycle fork, typically made of materials such as aluminum alloy, steel, or carbon fiber. As a crucial upper tubular component of the bicycle fork, the fork tube, together with the fork chainstays, forms the complete fork structure, bearing the important responsibility of connecting the handlebars to the front wheel. It is an indispensable key component of the bicycle's steering and suspension systems. When the size of the fork tube needs to be adjusted to fit a new bicycle fork, a tube expander is required to change the diameter of the fork tube to accommodate different types of bicycle forks.

[0003] While existing tube expanders can fix and expand the front end of the fork tube, they are prone to detachment or loosening during the expansion process. This can lead to damage or misalignment of the fork tube, as the fixing structure is relatively loose, resulting in poor stability and consequently affecting the quality of the fork tube and production efficiency.

[0004] In addition, in the existing fork tube processing process, the expansion is mostly based on the location of the positioning hole. When processing fork tubes of different specifications and with different expansion requirements, the expansion range is relatively limited, and the expansion head needs to be replaced and the expansion is performed again, which reduces the quality of the fork tube and increases production time.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a front fork tube processing and expansion device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A fork tube processing and expansion device includes a base; a moving component disposed on one side of the top of the base; an expansion mechanism disposed on one side of the top of the moving component and cooperating with the moving component; a first support seat symmetrically disposed on the other side of the top of the base; a fixing mechanism inserted into the first support seat and disposed on the side away from the moving component; and a control panel disposed at one end of the top of the base.

[0009] Furthermore, to ensure the accuracy of the expansion tube's position and dimensions, the moving component includes a mounting slot on one side of the top of the base, with a threaded rod inside the mounting slot. One end of the threaded rod passes through the base and is connected to a first servo motor. The top of the mounting slot has opposing brushes at both ends.

[0010] Furthermore, to improve the quality and production efficiency of fork tube processing and reduce operational errors, the tube expansion mechanism includes a movable end block fitted onto a threaded rod. A movable platform is mounted on top of the movable end block, and a second support base is located on one side of the top of the movable platform. A second servo motor is mounted on one side of the second support base, and the output end of the second servo motor passes through the second support base and is connected to a drive shaft. A drive disc and a fixed disc are sequentially fitted onto the outer circumference of the top of the drive shaft. The drive disc has several circumferentially rotating grooves, and a pin is installed inside each groove. A connecting rod is connected to the bottom of the pin, and an expansion plate is mounted at one end of the connecting rod. Several fixing rods are mounted on the circumferential sidewall of the fixed disc, and each fixing rod has a limiting groove that mates with the connecting rod. The drive shaft and the fixed disc are connected by bearings. The expansion plate has an arc-shaped structure, and the arc of the expansion plate is the same as the inner diameter of the fork tube. First sliding grooves are symmetrically provided at both ends of the bottom of the movable platform, and first slide rails that mate with the first sliding grooves are symmetrically provided on one side of the top of the base.

[0011] Furthermore, to reduce the impact of fork tube swaying or instability on the tube expansion quality and improve the quality and efficiency of tube expansion, the fixing mechanism includes an electric telescopic rod mounted on a first support base. The output end of the electric telescopic rod passes through the first support base and is connected to a push plate. Several clamping blocks arranged linearly are provided on one side of the push plate, and several anti-slip protrusions are provided on the clamping blocks. The push plate has an L-shaped structure, and a second sliding groove is formed at its bottom end. A pressure sensor is located in the middle of the clamping block; several infrared sensors are provided on one side of the push plate. A second slide rail, which mates with the second sliding groove, is symmetrically arranged on the other side of the base top. The common side of the clamping blocks and the anti-slip protrusions has an arc-shaped structure.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up a moving component, a tube expansion mechanism, and a fixing mechanism, enables the front end of the fork tube to be fixed by the fixing mechanism during the tube expansion process to prevent damage caused by the shaking of the fork tube during operation. Subsequently, the moving component drives the tube expansion mechanism to move and position precisely in the horizontal direction, as well as control the expansion size, ensuring the accuracy of the tube expansion position and size, reducing operational errors and material costs, and improving the quality and production efficiency of fork tube processing.

[0014] 2. By setting up a moving component and a tube expansion mechanism, this utility model enables the fork tube to move precisely in the horizontal direction during the tube expansion process through the coordinated cooperation of the moving component and the tube expansion mechanism, ensuring accurate tube expansion position; and can accurately expand the front end of the fork tube to the required size, ensuring the accuracy of tube expansion position and size, reducing operational errors, and improving the quality and production efficiency of fork tube processing.

[0015] 3. By setting up a fixing mechanism, the front end of the fork tube is fixed before processing. Then, the tube is expanded in coordination with the moving component and the tube expanding mechanism. During the tube expansion process, the impact of fork tube shaking or instability on the tube expansion quality can be reduced, thereby improving the tube expansion quality and work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a fork tube processing and expansion device according to an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of a fork tube processing and expansion device according to an embodiment of the present utility model;

[0019] Figure 3 This is a partial structural diagram of a fork tube processing and expansion device according to an embodiment of the present utility model;

[0020] Figure 4 This is a partial structural schematic diagram of the tube expansion mechanism in a tube expansion device for front fork tube processing according to an embodiment of the present utility model;

[0021] Figure 5 yes Figure 4 A magnified view of part A;

[0022] Figure 6 This is a schematic diagram of one side of the expansion mechanism in a fork tube processing expansion device according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the fixing mechanism of a fork tube processing and expansion device according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. Base; 2. Moving component; 201. Mounting slot; 202. Threaded rod; 203. First servo motor; 204. Brush; 3. Expanding mechanism; 301. Moving end block; 302. Moving platform; 303. Second support base; 304. Second servo motor; 305. Drive shaft; 306. Drive disc; 307. Fixed disc; 308. Rotating groove; 309. Pin shaft; 310. Connecting rod; 311. Expansion plate; 312. Fixed rod; 313. Limiting groove; 314. First slide groove; 315. First slide rail; 4. First support base; 5. Fixing mechanism; 501. Electric telescopic rod; 502. Push plate; 503. Clamping block; 504. Anti-slip protrusion; 505. Second slide groove; 506. Second slide rail; 6. Control panel; 7. Bearing; 8. Pressure sensor; 9. Infrared sensor. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a fork tube processing and expansion device is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, a fork tube processing and expansion device according to an embodiment of the present invention includes a base 1; a moving component 2, disposed on one side of the top of the base 1; an expansion mechanism 3, disposed on one side of the top of the moving component 2 and cooperating with the moving component 2; a first support seat 4, symmetrically disposed on the other side of the top of the base 1; a fixing mechanism 5, inserted on the first support seat 4 and disposed on the side away from the moving component 2; and a control panel 6, disposed at one end of the top of the base 1.

[0029] By employing the above-described technical solution of this utility model, which includes a moving component 2, a tube-expanding mechanism 3, and a fixing mechanism 5, the front end of the fork tube is first fixed by the fixing mechanism 5 during the tube-expanding process to prevent damage caused by fork tube swaying during operation. Then, the moving component 2 drives the tube-expanding mechanism 3 to precisely move and position horizontally, controlling the expansion dimension. This ensures the accuracy of the expansion position and size, reduces operational errors and material costs, and improves the quality and production efficiency of fork tube processing. Through the coordinated operation of the moving component 2 and the tube-expanding mechanism 3, the fork tube moves precisely horizontally during the expansion process, ensuring accurate expansion position and accurately expanding the front end of the fork tube to the required size. This guarantees the accuracy of the expansion position and size, reduces operational errors and material costs, and improves the quality and production efficiency of fork tube processing. By setting the fixing mechanism 5, the front end of the fork tube is fixed before processing. Then, it is expanded in coordination with the moving component 2 and the tube expanding mechanism 3. During the tube expanding process, the impact of fork tube shaking or instability on the tube expanding quality can be reduced, thereby improving the tube expanding quality and work efficiency.

[0030] Furthermore, in practical applications, a control panel 6 is installed at one end of the top of the base 1. This control panel 6 is electrically connected to the moving component 2, the tube expanding mechanism 3, the fixing mechanism 5, the pressure sensor 8, and the infrared sensor 9. Operators can input relevant data through the human-machine interface of the control panel 6, thereby achieving stable tube expansion and fixing of the front fork tube by the moving component 2, the tube expanding mechanism 3, and the fixing mechanism 5.

[0031] Furthermore, the control panel 6 is equipped with a human-machine interface and a PLC programmable logic controller. The human-machine interface is the interaction interface between the operator and the automation system. Its main function is to display the real-time operating status and the input of control commands. The PLC is used to execute specific control tasks, such as switching, controlling speed, or sensor signal acquisition and processing.

[0032] In one embodiment, the moving component 2 includes a mounting groove 201 formed on one side of the top of the base 1. A threaded rod 202 is provided inside the mounting groove 201. One end of the threaded rod 202 passes through the base 1 and is connected to a first servo motor 203. The top two ends of the mounting groove 201 are provided with abutting brushes 204 to ensure the accuracy of the expansion tube position and size.

[0033] Working principle of moving component 2: When it is necessary to expand the front end of the fork tube, the first servo motor 203 is started via the human-machine interface of the control panel 6. Its output shaft drives the threaded rod 202 to rotate. After the operator sets the required expansion position on the PLC programmable logic controller of the control panel 6, the threaded rod 202 drives the moving end block 301 to move. Limited by the mounting groove 201, the rotational motion of the threaded rod 202 is converted into linear motion of the moving end block 301 along the direction of the threaded rod 202. The moving platform 302 fixed on the top of the moving end block 301 moves with the moving end block 301. The moving platform 302 moves in the horizontal direction, driving the overall horizontal displacement of the expansion mechanism 3, and moving the expansion mechanism 3 to the position of the fork tube expansion to complete the positioning.

[0034] During the movement, the brushes 204 at both ends of the top of the mounting groove 201 are always in contact with the bottom of the moving platform 302, which can prevent impurities, debris and other things that may exist at the bottom of the moving platform 302 and in the mounting groove 201 from entering the interior of the moving component 2, affecting the transmission and stability of the threaded rod 202 and the moving end block 301, and ensuring the normal operation of the moving component 2.

[0035] In one embodiment, the tube expansion mechanism 3 includes a movable end block 301 sleeved on the threaded rod 202. A movable platform 302 is provided on the top of the movable end block 301. A second support base 303 is provided on one side of the top of the movable platform 302. A second servo motor 304 is provided on one side of the second support base 303. The output end of the second servo motor 304 passes through the second support base 303 and is connected to a drive shaft 305. A drive disc 306 and a fixed disc 307 are sequentially sleeved on the outer circumference of the top of the drive shaft 305. A plurality of circumferentially rotating grooves 308 are provided on the drive disc 306. A pin 309 is provided inside the rotating groove 308. A connecting rod 310 is connected to the bottom of the pin 309. An expansion plate 311 is provided at one end of the connecting rod 310. A plurality of fixing rods 312 are provided on the circumferential sidewall of the fixed disc 307. A limiting groove 313 that cooperates with the connecting rod 310 is provided inside the fixing rod 312. The drive shaft 305 is connected to the fixed disk 307 via a bearing 7. The expansion plate 311 has an arc-shaped structure, and the curvature of the expansion plate 311 is the same as the inner diameter of the fork tube. The bottom of the moving platform 302 is symmetrically provided with first slide grooves 314 at both ends, and the top of the base 1 is symmetrically provided with first slide rails 315 that cooperate with the first slide grooves 314, thereby improving the quality and production efficiency of fork tube processing and reducing operational errors.

[0036] Working principle of the tube expansion mechanism 3: During the movement of the moving component 2, the operator controls the second servo motor 304 to start via the human-machine interface of the control panel 6, and its output drives the drive shaft 305 to rotate. When the drive shaft 305 rotates, the drive disc 306 rotates synchronously. However, because the drive shaft 305 and the fixed disc 307 are connected by the bearing 7, the fixed disc 307 does not rotate with the drive shaft 305. The drive shaft 305 drives the pin 309 on the drive disc 306 to rotate along the rotating groove 308, and the connecting rod 310 moves with the pin 309, driving the expansion plate 311 to expand outwards. The expansion plate 311 begins to expand the inner diameter of the front fork tube, expanding the front fork tube to the required size, thus completing the tube expansion.

[0037] The first slide grooves 314 at both ends of the bottom of the mobile platform 302 cooperate with the first slide rails 315 on one side of the top of the base 1 to limit the movement. In addition, the first slide grooves 314 and the first slide rails 315 cooperate to provide stable guidance for the mobile platform 302 during the expansion process of the pipe expansion mechanism 3 driven by the mobile component 2, ensuring that the mobile platform 302 moves stably in the horizontal direction.

[0038] Conversely, after the front end of the fork tube is expanded, the control panel 6 controls the second servo motor 304 to start, and its output end drives the drive shaft 305 to rotate in the opposite direction, and drives the drive disc 306 to rotate in the opposite direction synchronously, so that the expansion plate 311 gradually retracts inward inside the front end of the fork tube and resets. Subsequently, the control panel 6 controls the first servo motor 203 to start, and its output shaft drives the threaded rod 202 to rotate in the opposite direction, and drives the tube expansion mechanism 3 to move backward on the moving component 2 and reset.

[0039] In one embodiment, the fixing mechanism 5 includes an electric telescopic rod 501 mounted on a first support base 4. The output end of the electric telescopic rod 501 passes through the first support base 4 and is connected to a push plate 502. A plurality of clamping blocks 503 arranged linearly are provided on one side of the push plate 502, and a plurality of anti-slip protrusions 504 are provided on each clamping block 503. The push plate 502 has an L-shaped structure, and a second sliding groove 505 is provided at its bottom end. A pressure sensor 8 is provided in the middle of each clamping block 503; a plurality of infrared sensors 9 are provided on one side of the push plate 502. A second slide rail 506, which mates with the second sliding groove 505, is symmetrically provided on the other side of the top of the base 1. The common side of the clamping blocks 503 and the anti-slip protrusions 504 is arc-shaped, thereby reducing the impact of fork tube swaying or instability on the tube expansion quality, and improving the tube expansion quality and working efficiency.

[0040] The working principle of the fixing mechanism 5: When the front end of the fork tube is clamped and fixed, the operator places the fork tube on the base 1. When the infrared sensor 9 detects the position of the fork tube and sends feedback to the control panel 6, the control panel 6 simultaneously controls the two electric telescopic rods 501 on the first support base 4 to start simultaneously. Their output ends extend and drive the push plate 502 to move linearly. During the movement of the push plate 502, the clamping blocks 503 arranged linearly on its side approach and clamp the front end of the fork tube. The anti-slip protrusions 504 on the surface of the clamping blocks 503 increase the friction with the front end of the fork tube, preventing the front end of the fork tube from sliding or deviating. In addition, the second sliding groove 505 at the bottom of the push plate 502 slides and engages with the second sliding rail 506 on the base 1 to ensure that the push plate 502 moves smoothly. Furthermore, in specific applications, the working time for the electric telescopic rod 501 to complete clamping is from the moment the infrared sensor 9 detects the fork tube until the clamping block 503 completely clamps the fork tube.

[0041] As the push plate 502 continues to move, the clamping block 503 and the anti-slip protrusion 504 apply clamping force to the front end of the fork tube. When the clamping force reaches the set threshold, it is fed back to the control panel 6 through the pressure sensor 8. The control panel 6 controls the two electric telescopic rods 501 to stop synchronously, so that the front end of the fork tube is fixed, thus completing the fixation of the front end of the fork tube.

[0042] Conversely, the control panel controls the two electric telescopic rods 501 to start simultaneously and their output ends to retract, causing the push plate 502 to move backward and causing the clamping block 503 and anti-slip protrusion 504 on the push plate 502 to slide and reset along the second slide groove 505 and the second slide rail 506, thus releasing the fixation on the front end of the fork tube.

[0043] It should be noted that the two electric telescopic rods 501 are interconnected via a synchronous interlocking mechanism, which can be linked through the control panel 6 to ensure that the output shafts of the two electric telescopic rods extend and retract synchronously, thus guaranteeing that the fixing mechanism 5 always maintains synchronous horizontal movement when fixed. The synchronous interlocking mechanism is existing technology and will not be described in detail here.

[0044] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0045] In practical applications, when it is necessary to expand the front end of the fork tube, the operator places the fork tube on the base 1. The infrared sensor 9 detects the position of the fork tube and sends feedback to the control panel 6. The control panel 6 controls the two electric telescopic rods 501 of the fixing mechanism 5 to start synchronously. Their output ends drive the two push plates 502 to move simultaneously. When the clamping blocks 503 on the two push plates 502 clamp the front end of the fork tube at the same time, the pressure sensor 8 detects the holding force of the clamping blocks 503 and sends feedback to the control panel 6 to prevent excessive holding force from damaging the fork tube. This completes the fixing of the front end of the fork tube (the working principle of the fixing mechanism 5 is as described above).

[0046] When it is necessary to expand the front end of the fork tube, the control panel 6 controls the first servo motor 203 of the moving component 2 to start, which drives the threaded rod 202 to rotate and drives the moving end block 301 and the moving platform 302 to move linearly. This drives the tube expansion mechanism 3 to move to the required tube expansion position set on the PLC programmable logic controller of the control panel 6, and then the positioning is completed. During this process, the brush 204 at the top of the mounting slot 201 prevents impurities from entering the moving component 2 (the working principle of the moving component 2 is as described above).

[0047] When the tube expansion mechanism 3 reaches the inner diameter of the front fork tube, the control panel 6 controls the second servo motor 304 of the tube expansion mechanism 3 to start. Its output end drives the drive shaft 305 to rotate, which in turn drives the drive disc 306 and the pin shaft 309 to rotate along the direction of the rotation groove 308 on the fixed disc 307. The connecting rod 310 moves in the limiting groove 313 inside the fixed rod 312 and drives the expansion plate 311 on the connecting rod 310 to expand outward, thus expanding the front end of the front fork tube (the working principle of the tube expansion mechanism 3 is as described above).

[0048] After the fork tube front end is expanded to the required size, the control panel 6 controls the two electric telescopic rods 501 to start simultaneously and retract their output ends, driving the push plate 502, clamping block 503, and anti-slip protrusion 504 to move backward and slide back along the second slide groove 505 and the second slide rail 506, releasing the fixation on the front end of the fork tube. Then, the control panel 6 controls the second servo motor 304 to rotate in the reverse direction, driving the drive shaft 305 and drive disc 306 to rotate in the reverse direction, causing the expansion plate 311 to retract inward and reset. After the expansion plate 311 resets, the control panel 6 then controls the first servo motor 203 to rotate in the reverse direction, driving the threaded rod 202 to move in the reverse direction, causing the tube expansion mechanism 3 to move backward and reset.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fork tube processing and expansion device, characterized in that, include: Base (1); A movable component (2) is disposed on one side of the top of the base (1); The tube expansion mechanism (3) is disposed on one side of the top of the moving component (2) and cooperates with the moving component (2); The first support base (4) is symmetrically arranged on the other side of the top of the base (1); The fixing mechanism (5) is interposed on the first support base (4) and on the side away from the moving component (2); A control panel (6) is located at one end of the top of the base (1).

2. The fork tube processing and expansion device according to claim 1, characterized in that, The moving component (2) includes a mounting groove (201) opened on one side of the top of the base (1), and a threaded rod (202) is provided inside the mounting groove (201). One end of the threaded rod (202) passes through the base (1) and is connected to a first servo motor (203). The mounting groove (201) has two opposing brushes (204) at its top ends.

3. The fork tube processing and expansion device according to claim 2, characterized in that, The tube expansion mechanism (3) includes a movable end block (301) sleeved on the threaded rod (202), a movable platform (302) is provided on the top of the movable end block (301), a second support seat (303) is provided on one side of the top of the movable platform (302), a second servo motor (304) is provided on one side of the second support seat (303), the output end of the second servo motor (304) passes through the second support seat (303) and is connected to a drive shaft (305), and a drive disc (306) and a fixed disc (307) are sequentially sleeved on the outer side of the top circumference of the drive shaft (305); The drive disc (306) has several circumferentially oriented rotating grooves (308), and a pin (309) is provided inside the rotating groove (308). A connecting rod (310) is connected to the bottom of the pin (309), and an expansion plate (311) is provided at one end of the connecting rod (310). The circumferential sidewall of the fixed disc (307) is provided with a plurality of fixed rods (312), and the fixed rods (312) are provided with limiting grooves (313) that cooperate with the connecting rods (310).

4. The fork tube processing and expansion device according to claim 3, characterized in that, The drive shaft (305) and the fixed disk (307) are connected by a bearing (7).

5. A fork tube processing and expansion device according to claim 3, characterized in that, The expansion plate (311) has an arc-shaped structure, and the curvature of the expansion plate (311) is the same as the inner diameter of the fork tube.

6. The fork tube processing and expansion device according to claim 3, characterized in that, The mobile platform (302) has symmetrical first slide grooves (314) at both ends of its bottom, and the base (1) has symmetrical first slide rails (315) on one side of its top end that cooperate with the first slide grooves (314).

7. The fork tube processing and expansion device according to claim 3, characterized in that, The fixing mechanism (5) includes an electric telescopic rod (501) set on the first support base (4). The output end of the electric telescopic rod (501) passes through the first support base (4) and is connected to a push plate (502). A plurality of clamping blocks (503) arranged in a linear direction are provided on one side of the push plate (502). A plurality of anti-slip protrusions (504) are provided on the clamping blocks (503). The push plate (502) has an L-shaped structure, and a second groove (505) is provided at the bottom end of the push plate (502); A pressure sensor (8) is provided in the middle of the clamping block (503); Several infrared sensors (9) are provided on one side of the push plate (502).

8. A fork tube processing and expansion device according to claim 7, characterized in that, The base (1) is symmetrically provided with a second slide rail (506) on the other side of the top end, which cooperates with the second slide groove (505).

9. A fork tube processing and expansion device according to claim 7, characterized in that, The clamping block (503) and the anti-slip protrusion (504) share a common arc-shaped structure on one side.

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