A shock absorber fork stanchion piercing and reducing device

Abstract

The utility model discloses a shock absorber front fork stand pipe punching pipe shrinking device, including first lower support frame, set up on the work table of first lower support frame, set up on the work table and put in the punch chamfer feeding support seat of feeder, set up on the punch chamfer actuating mechanism of work table, fixed on the push feeding mechanism and push unloading mechanism of work table, push feeding mechanism pushs the front fork stand pipe on punch chamfer feeding support seat to punch chamfer actuating mechanism, push unloading mechanism pushes the front fork stand pipe in punch chamfer actuating mechanism to punch chamfer feeding support seat. Through above -mentioned scheme, the utility model has simple structure, processing reliable and so on advantage, has very high practical value and popularization value in shock absorber processing technical field.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber processing technology, and in particular to a shock absorber front fork riser punching and shrinking device. Background Technology

[0002] The fork seat tube (also known as the fork connector tube) is part of the fork tube assembly. Its lower end connects to the fork connector, and its upper part connects to the steering wheel (or handlebars). The structure of this fork tube assembly is as follows: Figure 1 As shown, in the processing of the fork riser, the cut round tube undergoes three processes: tube reduction, punching, and chamfering. After chamfering, the fork riser needs to be turned to obtain a fork riser that matches the fork connector. Currently, existing fork riser technology still uses traditional distributed punching equipment, which is extremely inefficient.

[0003] Therefore, there is an urgent need to propose a shock absorber front fork riser punching and shrinking device that is simple in structure and reliable in processing. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a device for punching and shrinking the riser tube of a shock absorber front fork. The technical solution adopted by this utility model is as follows: A shock absorber fork riser punching and shrinking device is disclosed, which punches and shrinks the fork riser conveyed on a feeder, forming a connecting hole and a chamfer at the front end of the fork riser. The device includes a first lower support frame, a worktable mounted on the first lower support frame, a punching and chamfering feeding support seat mounted on the worktable and placed inside the feeder, a punching and chamfering actuator mounted on the worktable, and a pushing feeding mechanism and a pushing unloading mechanism fixed to the worktable. The pushing feeding mechanism pushes the fork riser on the punching and chamfering feeding support seat into the punching and chamfering actuator; the pushing unloading mechanism pushes the fork riser in the punching and chamfering actuator into the punching and chamfering feeding support seat.

[0005] Furthermore, the punching and chamfering actuator includes a first box side plate and a second box side plate fixed on the workbench, a box top plate disposed on the first box side plate and the second box side plate, a pressing and clamping cylinder fixed on the first box side plate, an end linkage plate connected to the pressing and clamping cylinder, several sliding guide rods disposed between the first box side plate and the second box side plate, a transmission rod with one end connected to the end linkage plate, the other end passing through the first box side plate and arranged parallel to the sliding guide rods, and a left-right moving clamping linkage plate fixed on the transmission rod and placed between the first box side plate and the second box side plate. A second extrusion clamping module is disposed between the left-right moving clamping linkage plate and the second housing side plate; a first extrusion clamping module is disposed between the left-right moving clamping linkage plate and the first housing side plate; a chamfering and milling module is disposed on the second housing side plate and the housing top plate; and a hydraulic punching machine is disposed opposite to the first housing side plate and corresponding to the position of the first extrusion clamping module. The hydraulic punching machine punches holes in the front fork stem to obtain connecting holes; the chamfering and milling module chamfers the front end of the front fork stem; the left-right moving clamping linkage plate is slidably sleeved on the sliding guide rod and clamps the front fork stem.

[0006] Furthermore, the first extrusion clamping module includes a first clamping template fixed to the inner wall of the first housing side plate, and a second clamping template fixed to the left and right moving clamping linkage plate and arranged opposite to the first clamping template; the front fork upright is placed between the first clamping template and the second clamping template and is punched by a hydraulic punching machine.

[0007] Furthermore, the second extrusion clamping module includes a fourth clamping template fixed to the inner wall of the second housing side plate, and a third clamping template fixed to the left and right moving clamping linkage plate and arranged opposite to the fourth clamping template; the third clamping template and the fourth clamping template clamp the front fork upright tube, and the chamfering is performed by the chamfering milling module.

[0008] Furthermore, the chamfering milling module includes a longitudinal sliding assembly fixed to the inner wall of the second housing side plate, a longitudinal pushing cylinder fixed to the top plate of the housing and pushing the longitudinal sliding assembly to slide in the longitudinal direction, a chamfering milling motor disposed on the longitudinal sliding assembly, and a chamfering cutter disposed at the bottom of the chamfering milling motor and facing the front fork stem.

[0009] Furthermore, a mold hole is provided between the fourth clamping template and the third clamping template, and between the first clamping template and the second clamping template.

[0010] Furthermore, the feeding mechanism includes a first guide rail and a feeding pusher fixed on the workbench, a first slide plate slidably disposed on the first guide rail and connected to the feeding pusher, a first support plate fixed on the first slide plate, a feeding pusher cylinder disposed on the first slide plate and the first support plate, and a feeding pusher plate disposed at the front end of the feeding pusher cylinder and pushing the front fork upright on the punching and chamfering feeding support seat to the punching and chamfering actuator.

[0011] Furthermore, the feeding mechanism includes a feeding pusher and a second guide rail fixed on the workbench, a second slide plate slidably disposed on the second guide rail and connected to the feeding pusher, a second support plate fixed on the second slide plate, a feeding pusher cylinder disposed on the second support plate and the second slide plate, a feeding pusher plate disposed at the front end of the feeding pusher cylinder, and two feeding ejector rods disposed at the front end of the feeding pusher plate; the feeding ejector rods push out the front fork upright between the fourth clamping template and the third clamping template, and between the first clamping template and the second clamping template.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model sets up a lifting hopper and a feeder to transport the fork uprights, thereby realizing automated processing and transmission of the fork uprights and improving processing efficiency.

[0013] (2) This utility model uses a tube shrinking and conveying mechanism and a tube shrinking machine to clamp the front fork upright on the feeder and use the tube shrinking machine to shrink the end of the front fork upright. Its operation is reliable.

[0014] (3) This utility model sets up a pipe punching and chamfering mechanism, pushes the front fork upright into the space between the first clamping template and the second clamping template, and between the third clamping template and the fourth clamping template, punches the front fork upright with a hydraulic punching machine, and performs chamfering with a chamfering milling motor and a chamfering milling cutter, ensuring that the punching and chamfering processes are continuous and reliable.

[0015] In summary, this utility model has the advantages of simple structure and reliable processing, and has high practical and promotional value in the field of shock absorber processing technology. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the structure of a shock absorber tie rod in the prior art.

[0018] Figure 2 This is a schematic diagram of the structure of the front fork riser to be processed in the prior art.

[0019] Figure 3 This is a schematic diagram of the structure of a front fork riser in the prior art.

[0020] Figure 4 This is a schematic diagram of the layout of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the pipe punching and chamfering mechanism in this utility model.

[0023] Figure 7 This is a partial structural diagram of the pipe punching and chamfering mechanism in this utility model.

[0024] Figure 8 This is a schematic diagram of the second partial structure of the pipe punching and chamfering mechanism in this utility model.

[0025] Figure 9 This is a schematic diagram of the material handling and unloading mechanism in this utility model.

[0026] Figure 10 This is a partial structural diagram of the material handling and unloading mechanism in this utility model.

[0027] Figure 11 This is a schematic diagram of the first state of the material handling and unloading mechanism in this utility model.

[0028] Figure 12 This is a schematic diagram of the second state of the material handling and unloading mechanism in this utility model.

[0029] In the above figures, the component names corresponding to the reference numerals are as follows: 100. Front fork riser; 101. Tube shrinking section; 102. Connecting hole; 2. Lifting hopper; 3. Feeder; 4. Tube shrinking and handling mechanism; 5. Tube shrinking machine; 6. Tube punching and chamfering mechanism; 7. Handling and unloading mechanism; 8. Unloading conveyor belt; 9. Lathe assembly; 61. First lower support frame; 62. Worktable; 63. Punching and chamfering loading support seat; 64. Punching and chamfering actuator; 6401. First housing Side plate; 6402, Second box side plate; 6403, Extrusion clamping cylinder; 6404, End linkage plate; 6405, Transmission rod; 6406, Left and right moving clamping linkage plate; 6407, Sliding guide rod; 6408, First clamping template; 6409, Second clamping template; 6410, Third clamping template; 6411, Fourth clamping template; 6412, Longitudinal sliding assembly; 6413, Longitudinal pushing cylinder 6414. Cylinder; 6415. Chamfering milling motor; 6416. Chamfering cutter; 6417. Hydraulic punching machine; 6418. Mold hole; 651. First guide rail; 652. Feed pusher air rod; 653. First slide plate; 654. First support plate; 655. Feed pusher cylinder; 656. Feed pusher plate; 661. Discharge pusher air rod; 662. Second guide rail; 663. Second slide plate; 664. Second support plate; 665. Discharge pusher cylinder; 666. Discharge pusher plate; 667. Discharge ejector rod; 701. Support frame; 702. Truss; 705. Third slide plate; 706. Longitudinal cylinder mounting seat; 707. Longitudinal pusher rod; 708. Fourth slide rail; 709. Fourth slide plate; 710. Longitudinal mounting plate; 711. Rotary cylinder; 712. Clamping cylinder mounting seat; 713. Clamping cylinder; 714. Clamping claw. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0031] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0032] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0033] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0034] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0035] like Figures 4 to 12 As shown, this embodiment provides a shock absorber front fork riser punching and shrinking device. The device processes the front fork riser 100, forming a shrinking portion 101, a connecting hole 102, and a chamfer at the front end of the riser 100 to facilitate subsequent assembly. After chamfering, the front fork riser 100 needs to be turned to ensure its front end matches and connects with the front fork connector.

[0036] Here, the shock absorber front fork riser punching and shrinking device includes a lifting hopper 2, a feeder 3, a shrinking and transporting mechanism 4, a pipe shrinking machine 5, a pipe punching and chamfering mechanism 6, a transport and unloading mechanism 7, and a unloading conveyor belt 8. The lifting hopper 2 stores the front fork risers 100 to be processed. The lifting hopper 2 lifts and loads the front fork risers 100 to be processed one by one onto the feeder 3; the feeder 3 then transports the front fork risers 100 to be processed. When the front fork risers 100 are transported to the shrinking and transporting mechanism 4, the shrinking and transporting mechanism 4 clamps the front fork risers 100 on the feeder 3, and the pipe shrinking machine 5 shrinks the ends of the front fork risers 100 to achieve the shrinking of the ends of the front fork risers 100. It should be noted that the pipe shrinking machine 5 in this embodiment is existing mature equipment and will not be described in detail here. After the fork riser 100 undergoes tube reduction processing, it is returned to the feeder 3 for continued forward transport to the pipe punching and chamfering mechanism 6. The pipe punching and chamfering mechanism 6 punches and chamfers the fork riser 100, which is then transported by the conveying and unloading mechanism 7. The unmachined fork riser 100 is then transported to the lathe assembly 9 for machining, and the machined fork riser 100 is transported to the unloading conveyor belt 8 for unloading. The lathe assembly 9 is a conventional device, and its specific structure will not be described in detail here.

[0037] Here, the pipe punching and chamfering mechanism 6 includes a first lower support frame 61, a worktable 62 mounted on the first lower support frame 61, a punching and chamfering feeding support 63 mounted on the worktable 62 and placed inside the feeder 3, a punching and chamfering execution mechanism 64 mounted on the worktable 62, and a pushing feeding mechanism and a pushing unloading mechanism fixed on the worktable 62. The feeder 3 places the fork upright 100 on the punching and chamfering feeding support 63, and the pushing feeding mechanism pushes the fork upright 100 on the punching and chamfering feeding support 63 into the punching and chamfering execution mechanism 64, where punching and chamfering operations are performed. After processing, the pushing unloading mechanism pushes the fork upright 100 from the punching and chamfering execution mechanism 64 back to the punching and chamfering feeding support 63.

[0038] In this embodiment, the punching and chamfering actuator 64 performs two processes on the front fork riser 100: punching and chamfering. It includes a first housing side plate 6401 and a second housing side plate 6402 fixed on the worktable 62; a housing top plate disposed on the first housing side plate 6401 and the second housing side plate 6402; a pressing and clamping cylinder 6403 fixed on the first housing side plate 6401; an end linkage plate 6404 connected to the pressing and clamping cylinder 6403; several sliding guide rods 6407 disposed between the first housing side plate 6401 and the second housing side plate 6402; and a transmission rod whose one end is connected to the end linkage plate 6404, whose other end passes through the first housing side plate 6401, and which is arranged parallel to the sliding guide rods 6407. 6405, a left-right movable clamping linkage plate 6406 fixed on the transmission rod 6405 and positioned between the first housing side plate 6401 and the second housing side plate 6402, a second extrusion clamping module disposed between the left-right movable clamping linkage plate 6406 and the second housing side plate 6402, a first extrusion clamping module disposed between the left-right movable clamping linkage plate 6406 and the first housing side plate 6401, a chamfering and milling module disposed on the second housing side plate 6402 and the housing top plate, and a hydraulic punching machine 6416 disposed opposite to the first housing side plate 6401 and corresponding to the position of the first extrusion clamping module. The hydraulic punching machine 6416 punches holes in the front fork stem 100 to obtain connecting holes 102. Additionally, the chamfering and milling module chamfers the front end of the front fork stem 100. In this implementation, the left and right moving clamping linkage plate 6406 is slidably sleeved on the sliding guide rod 6407 and clamps the front fork riser tube 100.

[0039] In this embodiment, the first extrusion clamping module includes a first clamping template 6408 fixed to the inner wall of the first housing side plate 6401, and a second clamping template 6409 fixed to the left-right moving clamping linkage plate 6406 and arranged opposite to the first clamping template 6408. The fork stem 100 is placed between the first clamping template 6408 and the second clamping template 6409 and is punched by a hydraulic punching machine 6416. Additionally, the second extrusion clamping module includes a fourth clamping template 6411 fixed to the inner wall of the second housing side plate 6402, and a third clamping template 6410 fixed to the left-right moving clamping linkage plate 6406 and arranged opposite to the fourth clamping template 6411. The third clamping template 6410 and the fourth clamping template 6411 clamp the fork stem 100.

[0040] Here, after the front end of the fork riser 100 enters between the first clamping template 6408 and the second clamping template 6409, the end linkage plate 6404 is pushed to the right by the compression clamping cylinder 6403. The transmission rod 6405 drives the left-right moving clamping linkage plate 6406 to move to the right, so that the first clamping template 6408 and the second clamping template 6409 come close together and clamp the fork riser 100. Then, the end of the fork riser 100 is punched by the hydraulic punching machine 6416 arranged vertically to obtain the connecting hole 102. In addition, during the chamfering process, the compression clamping cylinder 6403 moves to the left, so that the fourth clamping template 6411 and the third clamping template 6410 clamp the fork riser 100. Then, the chamfering milling module is used to perform the chamfering process. In addition, a mold hole 6417 is provided between the fourth clamping template 6411 and the third clamping template 6410, and between the first clamping template 6408 and the second clamping template 6409, so as to facilitate the chamfering milling cutter 6415 and the hydraulic punching machine 6416 to perform processing operations.

[0041] In this embodiment, the chamfering and milling module includes a longitudinal sliding assembly 6412 fixed to the inner wall of the second housing side plate 6402, a longitudinal pushing cylinder 6413 fixed to the top plate of the housing and pushing the longitudinal sliding assembly 6412 to slide longitudinally, a chamfering and milling motor 6414 disposed on the longitudinal sliding assembly 6412, and a chamfering cutter 6415 disposed at the bottom of the chamfering and milling motor 6414 and facing the front fork stem 100. The longitudinal pushing cylinder 6413 drives the chamfering and milling motor 6414 and the chamfering cutter 6415 to move up and down, and performs chamfering processing on the end of the front fork stem 100.

[0042] In this embodiment, a feeding mechanism is used to feed the fork stem 100, and a discharging mechanism is used to discharge the fork stem 100. The feeding mechanism includes a first guide rail 651 fixed to the workbench 62 and a feeding pusher 652, a first slide plate 653 slidably mounted on the first guide rail 651 and connected to the feeding pusher 652, a first support plate 654 fixed to the first slide plate 653, a feeding pusher cylinder 655 mounted on the first slide plate 653 and the first support plate 654, and a feeding pusher plate 656 located at the front end of the feeding pusher cylinder 655 and pushing the fork stem 100 from the punching and chamfering feeding support 63 into the punching and chamfering actuator 64. The feeding mechanism includes a feeding pusher 661 and a second guide rail 662 fixed on the workbench 62, a second slide plate 663 slidably mounted on the second guide rail 662 and connected to the feeding pusher 661, a second support plate 664 fixed on the second slide plate 663, a feeding pusher cylinder 665 mounted on the second support plate 664 and the second slide plate 663, a feeding pusher plate 666 at the front end of the feeding pusher cylinder 665, and two feeding ejector rods 667 at the front end of the feeding pusher plate 666. The feeding ejector rods 667 push out the front fork riser tube 100 between the fourth clamping template 6411 and the third clamping template 6410, and between the first clamping template 6408 and the second clamping template 6409.

[0043] In this embodiment, after the front fork riser 100 is chamfered, its front end surface has burrs or its outer diameter does not match the front fork connecting seat. Therefore, the front fork riser 100 needs to be turned. Thus, the front fork riser 100 on the feeder 3 needs to be transferred to the lathe assembly 9, and the turned front fork riser 100 is transferred to the unloading conveyor belt 8. The unloading mechanism 7 includes a support frame 701 and a truss 702 forming a portal frame shape, a longitudinal two-axis moving assembly mounted on the truss 702, a longitudinal mounting plate 710 fixed on the longitudinal two-axis moving assembly, a rotary cylinder 711 located at the lower part of the longitudinal mounting plate 710, a clamping cylinder mounting seat 712 fixed on the rotary cylinder 711, clamping cylinders 713 corresponding to the ends of the clamping cylinder mounting seats 712, and clamping claws 714 located on the clamping cylinders 713. The clamping cylinder 713 and clamping claw 714 clamp the fork stem 100, and the rotating cylinder 711 drives the clamping cylinder 713 and clamping claw 714 to swing. Here, the two clamping cylinders 713 are arranged at 180° (or two clamping cylinders arranged at 90° to 180°, with the clamping cylinder mounting base 712 adjusted similarly). The rotating cylinder 711 drives one of the clamping cylinders to move upwards (i.e., one fork stem 100 moves upwards towards the longitudinal mounting plate 710), while simultaneously driving the other clamping cylinder to move downwards (i.e., another fork stem 100 is positioned downwards below the rotating cylinder 711), thus gripping the fork stem 100 using the oriented clamping cylinders. The usage process is as follows: Here, the initial state is defined as follows: A fork riser 100 that has just completed turning is on the lathe assembly 9, and the feeder 3 conveys the fork riser 100 to be turned. One clamping cylinder 713 (labeled as clamp number one) clamps the fork riser 100 to be turned, and the other clamping cylinder 713 (labeled as clamp number two) is in an idle state. For ease of understanding, this embodiment uses clamp number one and clamp number two to describe the state.

[0044] In the first step, the truss 702 moves the first and second clamps to the position of the lathe assembly 9. The second clamp removes the fork riser 100, which has just been turned. The rotary cylinder 711 drives the two clamping cylinders 713 (i.e., the first and second clamps) to switch positions, and places the fork riser 100 (on the first clamp) onto the lathe assembly 9 for machining. At this point, the first clamp is idle, and the second clamp holds the fork riser 100 that has just been turned.

[0045] In the second step, the truss 702 moves the first clamp and the second clamp to the position of the feeder 3. The rotary cylinder 711 drives the first clamp toward the front fork riser 100 on the feeder 3 and clamps it. At this time, the first clamp holds the unprocessed front fork riser 100, and the second clamp holds the front fork riser 100 that has just been turned.

[0046] In the third step, the truss 702 moves the first clamp and the second clamp to the position of the unloading conveyor belt 8. The rotary cylinder 711 drives the clamping cylinder mounting seat 712 to swing, and the second clamp is placed at the lower part. The second clamp lowers the machined front fork riser tube 100. At this point, the second clamp is in an idle state, and the first clamp holds the unmachined front fork riser tube 100.

[0047] In the fourth step, the truss 702 moves the first and second clamps to the position of the lathe assembly 9. At this time, the lathe assembly 9 has completed the turning of the fork riser 100 in the previous cycle. The idle second clamp is used to remove the fork riser 100 that has just been turned and place it into the fork riser 100 to be turned in the next cycle, and so on. In this embodiment, during the process of the truss 702 driving the first and second clamps to move towards the feeder 3 and the unloading conveyor 8, and during the process of picking up and unloading materials at the positions of the feeder 3 and the unloading conveyor 8, the lathe assembly 9 realizes the turning of the fork riser 100. It does not require the unloading mechanism 7 to wait in the lathe assembly 9, and its processing efficiency is higher.

[0048] Here, the longitudinal two-axis moving assembly includes a third slide plate 705 fixed to the truss 702, a longitudinal cylinder mounting base 706 and a fourth slide rail 708 fixed to the third slide plate 705, a longitudinal push rod 707 fixed to the longitudinal cylinder mounting base 706, and a fourth slide plate 709 slidably disposed on the fourth slide rail 708 and connected to the longitudinal push rod 707. A longitudinal mounting plate 710 is fixed to the fourth slide plate 709.

[0049] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A device for punching and shrinking a front fork riser tube of a shock absorber, comprising punching and shrinking a front fork riser tube (100) conveyed on a feeder (3), and forming a connecting hole (102) and a chamfer at the front end of the front fork riser tube (100), characterized in that, The shock absorber front fork riser punching and shrinking device includes a first lower support frame (61), a workbench (62) set on the first lower support frame (61), a punching and chamfering feeding support seat (63) set on the workbench (62) and placed in the feeder (3), a punching and chamfering actuator (64) set on the workbench (62), a pushing feeding mechanism and a pushing unloading mechanism fixed on the workbench (62); the pushing feeding mechanism pushes the front fork riser (100) on the punching and chamfering feeding support seat (63) into the punching and chamfering actuator (64); the pushing unloading mechanism pushes the front fork riser (100) in the punching and chamfering actuator (64) into the punching and chamfering feeding support seat (63). The punching and chamfering actuator (64) includes a first box side plate (6401) and a second box side plate (6402) fixed on the workbench (62), a box top plate disposed on the first box side plate (6401) and the second box side plate (6402), a pressing and clamping cylinder (6403) fixed on the first box side plate (6401), an end linkage plate (6404) connected to the pressing and clamping cylinder (6403), several sliding guide rods (6407) disposed between the first box side plate (6401) and the second box side plate (6402), a transmission rod (6405) with one end connected to the end linkage plate (6404), the other end passing through the first box side plate (6401) and arranged parallel to the sliding guide rods (6407), and fixed on the transmission rod (6405) and placed on the first box side plate (6401) and the second box side plate (6402). The system includes a left-right moving clamping linkage plate (6406), a second extrusion clamping module between the left-right moving clamping linkage plate (6406) and the second box side plate (6402), a first extrusion clamping module between the left-right moving clamping linkage plate (6406) and the first box side plate (6401), a chamfering milling module on the second box side plate (6402) and the box top plate, and a hydraulic punching machine (6416) positioned opposite to the first box side plate (6401) and corresponding to the position of the first extrusion clamping module; the hydraulic punching machine (6416) punches holes in the front fork stem (100) to obtain connecting holes (102); the chamfering milling module chamfers the front end of the front fork stem (100); the left-right moving clamping linkage plate (6406) is slidably sleeved on the sliding guide rod (6407) and clamps the front fork stem (100).

2. The shock absorber front fork riser punching and shrinking device according to claim 1, characterized in that, The first extrusion clamping module includes a first clamping template (6408) fixed to the inner wall of the first housing side plate (6401), and a second clamping template (6409) fixed on the left and right moving clamping linkage plate (6406) and arranged opposite to the first clamping template (6408); the front fork upright (100) is placed between the first clamping template (6408) and the second clamping template (6409) and is punched by a hydraulic punching machine (6416).

3. The shock absorber front fork riser punching and shrinking device according to claim 2, characterized in that, The second extrusion clamping module includes a fourth clamping template (6411) fixed to the inner wall of the second box side plate (6402), and a third clamping template (6410) fixed on the left and right moving clamping linkage plate (6406) and arranged opposite to the fourth clamping template (6411); the third clamping template (6410) and the fourth clamping template (6411) clamp the front fork riser (100) and perform chamfering by the chamfering milling module.

4. The shock absorber front fork riser punching and shrinking device according to claim 3, characterized in that, The chamfering and milling module includes a longitudinal sliding assembly (6412) fixed to the inner wall of the second housing side plate (6402), a longitudinal pushing cylinder (6413) fixed to the top plate of the housing and pushing the longitudinal sliding assembly (6412) to slide in the longitudinal direction, a chamfering and milling motor (6414) disposed on the longitudinal sliding assembly (6412), and a chamfering cutter (6415) disposed at the bottom of the chamfering and milling motor (6414) and facing the front fork riser (100).

5. A shock absorber front fork riser punching and shrinking device according to claim 4, characterized in that, A mold hole (6417) is provided between the fourth clamping template (6411) and the third clamping template (6410), and between the first clamping template (6408) and the second clamping template (6409).

6. The shock absorber front fork riser punching and shrinking device according to claim 1, characterized in that, The feeding mechanism includes a first guide rail (651) and a feeding push air rod (652) fixed on the workbench (62), a first slide plate (653) slidably disposed on the first guide rail (651) and connected to the feeding push air rod (652), a first support plate (654) fixed on the first slide plate (653), a feeding push air cylinder (655) disposed on the first slide plate (653) and the first support plate (654), and a feeding push plate (656) disposed at the front end of the feeding push air cylinder (655) and pushing the front fork upright (100) on the punching and chamfering feeding support seat (63) to the punching and chamfering actuator (64).

7. The shock absorber front fork riser punching and shrinking device according to claim 1, characterized in that, The feeding mechanism includes a feeding pusher (661) and a second guide rail (662) fixed on the workbench (62), a second slide plate (663) slidably disposed on the second guide rail (662) and connected to the feeding pusher (661), a second support plate (664) fixed on the second slide plate (663), a feeding pusher cylinder (665) disposed on the second support plate (664) and the second slide plate (663), a feeding pusher plate (666) disposed at the front end of the feeding pusher cylinder (665), and two feeding ejector rods (667) disposed at the front end of the feeding pusher plate (666); the feeding ejector rods (667) push out the front fork riser (100) between the fourth clamping template (6411) and the third clamping template (6410) and between the first clamping template (6408) and the second clamping template (6409).

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