Front shock absorber assembling mechanism

Abstract

The invention discloses a front shock absorber assembling mechanism, and relates to the technical field of motorcycle front shock absorber assembling equipment, the front shock absorber assembling mechanism comprises a base, a workbench, a first positioning device and a second positioning device, the workbench is used for placing a shock absorber, the first positioning device is provided with a limiting channel, and one end of the shock absorber can be placed in the limiting channel; the tail end of the shock absorber is positioned; the second positioning device comprises a sliding table, a clamping cylinder, a clamping piece and a pressure release valve, the sliding table is slidably connected to the base, the clamping cylinder can drive the clamping piece to rotate to clamp a workpiece, the pressure release valve is provided with a piston rod, and an air inlet channel of the clamping cylinder is communicated with an inner cavity of the pressure release valve; the second positioning device can move so that the workpiece can be installed at the preset position of the shock absorber. When the workpiece reaches the preset position, the piston rod can abut against the side wall of the workbench and retract, so that the inner cavity communicates with the outside, pressure relief of the clamping cylinder is achieved, automatic clamping loosening is achieved, feeding and discharging operation and the control process are simplified, and the structural compactness is improved.

Description

Technical Field

[0001] This invention relates to the field of motorcycle front shock absorber assembly equipment technology, and particularly to a front shock absorber assembly mechanism. Background Technology

[0002] Currently, the assembly of motorcycle front shock absorber systems mainly involves the installation and positioning of the shock absorber and the lower control plate. Traditional assembly fixtures are relatively complex in structure, lack positioning accuracy, and often occupy a large amount of equipment space, making them unsuitable for arrangement within a limited working area. Furthermore, the opening and closing actions of the clamping mechanisms in conventional fixtures are cumbersome, resulting in low efficiency in the loading and unloading process and affecting the overall assembly cycle time. While existing technologies include assembly platforms that use cylinders to drive the shock absorber and steering column assembly for docking, these still suffer from structural redundancy, numerous operating steps, and high skill requirements for workers. Therefore, a front shock absorber assembly mechanism that is structurally simplified, accurately positioned, space-saving, and easy to operate is needed to improve assembly efficiency and quality, meeting the demands of modern motorcycle production lines. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a front shock absorber assembly mechanism that improves structural compactness, clamping convenience, and production efficiency.

[0004] A front shock absorber assembly mechanism according to an embodiment of the present invention includes: The base includes a worktable, a first positioning device, and a second positioning device. The worktable is used to place the shock absorber. The first positioning device has a limiting channel, allowing one end of the shock absorber to be placed within the limiting channel for positioning the end of the shock absorber. The second positioning device includes a slide table, a clamping cylinder, clamping plates, and a pressure relief valve. The slide table is slidably connected to the base. The clamping cylinder can drive the clamping plates to rotate and clamp the workpiece. The pressure relief valve has a piston rod, and the air inlet channel of the clamping cylinder is connected to the inner cavity of the pressure relief valve. The second positioning device can move to position the workpiece in a preset position on the shock absorber. When the workpiece reaches the preset position, the piston rod can abut against the side wall of the worktable and retract, thereby connecting the inner cavity to the outside, releasing the pressure of the clamping cylinder, and achieving automatic release.

[0005] A front shock absorber assembly mechanism according to an embodiment of the present invention has at least the following beneficial effects: In this embodiment, the limiting channel of the first positioning device cooperates with the worktable to achieve the loading and positioning of the shock absorber. The second positioning device adopts a linkage mechanism of clamping cylinder, clamping plate and pressure relief valve. When the slide moves to the preset installation position, the piston rod is resisted and retracted, so that the clamping cylinder automatically releases pressure and loosens the clamp, realizing the automated operation of "releasing as soon as it is in place". Workers or unloading equipment can directly unload the workpiece. The operation is simple and eliminates additional control steps, simplifying the complex clamping and separation process of traditional tooling and shortening the loading and unloading time. The overall structure is compact and occupies little space, reducing the technical threshold of operation and effectively improving the assembly cycle and consistency.

[0006] According to some embodiments of the present invention, the base is provided with a drive cylinder, which can drive the slide to move, and when the drive cylinder pushes the slide to move towards the worktable, the air intake channel of the drive cylinder is connected to the inner cavity of the pressure relief valve.

[0007] According to some embodiments of the present invention, the base is provided with a drive cylinder and a drive device, the drive device is capable of driving the slide to move towards the worktable, and the exhaust channel of the drive cylinder is connected to the air intake channel of the clamping cylinder when clamping.

[0008] According to some embodiments of the present invention, a buffer is also provided, wherein a cavity is provided inside the buffer, and a slidable movable piston is provided inside the cavity. One end of the movable piston is provided with a buffer member on the side wall of the cavity. When the air pressure inside the cavity increases, the movable piston can move to compress the buffer member.

[0009] According to some embodiments of the present invention, when the slide moves toward the worktable, the air intake passage of the clamping cylinder and the cavity of the buffer are interconnected.

[0010] According to some embodiments of the present invention, the inner walls on both sides of the limiting channel are provided with a plurality of pivotally connected rollers, which can abut against the outer peripheral wall of the shock absorber.

[0011] According to some embodiments of the present invention, the limiting channel includes a guide section and a positioning section. The guide section is provided with multiple rollers and has a protruding boss with an inclined surface that can guide the shock absorber to fall into the positioning section.

[0012] According to some embodiments of the present invention, the slide table is provided with a positioning block and a limiting post. When the clamping piece presses against one side of the workpiece, the other side of the workpiece can abut against the positioning block. The limiting post is located on the side of the workpiece facing away from the positioning block.

[0013] According to some embodiments of the present invention, the slide table is provided with a return spring, one end of which is connected to a clamping plate. During material feeding, the return spring can drive the clamping plate to open and achieve loosening.

[0014] According to some embodiments of the present invention, the worktable is provided with a reference block, and when the shock absorber is placed on the worktable, the reference block can abut against the end of the shock absorber's cylinder body to achieve axial positioning.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is an isometric view of a front shock absorber assembly mechanism according to an embodiment of the present invention; Figure 2 This is an end view of a front shock absorber assembly mechanism according to an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of A in the middle; Figure 4 This is a partial view of the second positioning device in an embodiment of the present invention; Figure 5 This is an isometric view of the second positioning device in an embodiment of the present invention; Figure 6 This is an isometric view of the pressure relief valve in an embodiment of the present invention; Figure 7 This is a cross-sectional view of the pressure relief valve in an embodiment of the present invention; Figure 8 This is a cross-sectional view of the buffer in an embodiment of the present invention; Figure 9 This is a schematic diagram of the installation of the drive device in an embodiment of the present invention.

[0017] Figure label: Base 100; Worktable 101; Reference block 102; Drive cylinder 103; Shock absorber 104; Telescopic section 105; Mounting base 106; Workpiece 107; First positioning device 110; limiting channel 111; roller 112; guide section 113; positioning section 114; inclined surface 115; boss 116; Second positioning device 120; slide table 121; clamping cylinder 122; clamping plate 123; return spring 124; positioning block 125; limiting post 126; pulley 127; Pressure relief valve 130; piston rod 131; elastic element 132; vent 133; exhaust duct 134; connecting pipe 135; inner cavity 136; Buffer 140; Moving piston 141; Cavity 142; Buffer component 143; Drive unit 150; gear 151; rack 152. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0020] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 In one embodiment of the present invention, a front shock absorber assembly mechanism includes a base 100, on which a worktable 101, a first positioning device 110, and a second positioning device 120 are provided. The worktable 101 is mainly used to place the shock absorber 104 to be assembled. It is understood that the shock absorber 104 includes a cylindrical body and a telescopic section 105 inserted into the cylindrical body, and a mounting seat 106 is provided at the end of the telescopic section 105 facing away from the cylindrical body. The mounting seat 106 is used to connect a wheel and install a braking system. A reference block 102 is provided on the worktable 101. When the shock absorber 104 is placed on the worktable 101, the end of its cylindrical body facing the mounting seat 106 will contact the reference block 102, thereby achieving axial positioning of the shock absorber 104, facilitating manual loading, and preventing unnecessary axial movement during assembly.

[0023] Understandably, during the installation of the shock absorber 104 and the workpiece 107 (i.e., the upper or lower connecting plate), a connecting rod needs to be inserted into the mounting base 106 to connect and position the two mounting bases 106. Therefore, a first positioning device 110 is used to position the end of the shock absorber 104. The first positioning device 110 is provided with a limiting channel 111, in which the mounting base 106 can be placed. To facilitate the smooth entry of the shock absorber 104 into the limiting channel 111 and reduce friction, multiple pivotally connected rollers 112 are provided on the inner walls of both sides of the limiting channel 111. These rollers 112 can contact and support the outer peripheral wall of the shock absorber 104, making the shock absorber 104 smoother when placed or adjusted, reducing the operator's effort, and also reducing the risk of scratching the surface of the shock absorber.

[0024] like Figure 2 and Figure 3 As shown, the mounting base 106 has flat surfaces on both sides. The limiting channel 111 includes a guide section 113 and a positioning section 114. The guide section 113 typically has a large opening. Specifically, the guide section 113 has an outwardly recessed area, which keeps the roller 112 away from the mounting base 106. In particular, a protruding boss 116 is provided at the lower part of the recessed area of ​​the guide section 113. The boss 116 has a slope 115, which slopes downward from the inner wall of the limiting channel 111 towards the mounting base 106. The slope 115 can naturally guide the shock absorber 104 to slide smoothly and accurately into the positioning section 114 during the unloading or placement process. The positioning section 114 is the part that finally fixes and holds the end position of the shock absorber 104. Its dimensions are more precise, ensuring the reliability of positioning. This phased guidance and final positioning structure greatly simplifies the difficulty of manual placement and improves the loading speed and accuracy. For example, the mounting base 106 can rotate relative to the shock absorber 104. Therefore, when the mounting base is manually loaded, the orientation of the outer plane of the mounting base 106 is uncertain. When the mounting base enters the limiting channel 111, it can rotate to the correct preset position under the guidance of the inclined plane 115 and accurately fall into the positioning section 114, thereby ensuring that the outer plane of the mounting base 106 is perpendicular to the horizontal plane. This makes it easier for workers to insert the connecting rod into the mounting base 106. This process can achieve one-time positioning without the need for manual or other auxiliary tools, which helps to improve the efficiency of loading.

[0025] The second positioning device 120 is a key component for achieving automated clamping and releasing. (Refer to...) Figure 4 and Figure 5The second positioning device 120 includes a slide table 121, a clamping cylinder 122, a clamping plate 123, a positioning block 125, and a pressure relief valve 130. The workpiece 107 can be placed on the slide table 121. The clamping plate 123 and the positioning block 125 are located on both sides of the workpiece 107 to achieve clamping and positioning. Furthermore, in order to ensure that the workpiece 107 is accurately positioned and does not deviate when clamped, a limiting post 126 can also be provided on the slide table 121. The limiting post 126 is located on the side of the workpiece 107 facing away from the positioning block 125. It does not contact the workpiece every time it is clamped. Its main function is to serve as an initial limit when loading. When not clamped, it is convenient for the worker to place the workpiece 107 stably on the slide table 121 to prevent the workpiece 107 from tipping over, thus providing a premise for stable clamping.

[0026] It is understood that the slide table 121 is mounted on the base 100 via a sliding connection such as a slider guide rail pair, enabling it to move linearly relative to the base 100 and the worktable 101. The power source for this movement can be varied. In some embodiments, a drive cylinder 103 can be installed on the base 100. The drive cylinder 103 is a rodless cylinder, and its slider is connected to the slide table 121, thus directly pushing the slide table 121 towards the worktable 101. This, in turn, drives the second positioning device 120 to approach the shock absorber 104, allowing the workpiece 107 to be fitted onto the shock absorber 104. A clamping cylinder 122 is installed on the bottom of the slide table 121 facing away from the workpiece 107. The clamping cylinder 122 is typically a pneumatic cylinder. The piston of the clamping cylinder 122 moves horizontally, pushing the clamping plate 123 away from one end of the workpiece 107, causing the clamping plate 123 to rotate and press against the workpiece 107. Specifically, the clamping plate 123 is pivotally connected to the slide table 121. When the piston rod of the clamping cylinder 122 extends or retracts, it directly pushes the clamping plate 123 to rotate around its pivot, thereby opening or closing the clamping plate 123 to clamp or release the workpiece 107. It is understood that, to reduce transmission resistance, one end of the clamping plate 123 is provided with a pivotally connected pulley 127. The piston rod of the clamping cylinder 122 can push against the pulley 127, thereby realizing the rotation of the clamping plate 123 and avoiding frictional resistance between the clamping plate 123 and the clamping cylinder 122, which helps to improve the stability of clamping.

[0027] To enable automatic release at a specific time after clamping, this invention employs a pressure relief valve 130, which is mounted on the slide table 121. (Refer to...) Figure 6 and Figure 7The pressure relief valve 130 is a valve body structure with a piston rod 131. Inside the valve body is an inner cavity 136, which has a connecting pipe 135 for connecting to an external air intake channel. The inner cavity 136 also has an exhaust channel 134 that can connect to the outside atmosphere. Meanwhile, one end of the piston rod 131 has a vent 133 that connects to the inner cavity 136. When the piston rod 131 slides to a preset position, the vent 133 can connect the inner cavity 136 and the exhaust channel 134 to achieve exhaust pressure relief.

[0028] The key point is that the air intake passage of the clamping cylinder 122 is interconnected with the inner cavity 136 of the pressure relief valve 130, that is, the connecting pipe 135 connects to the air intake passage of the clamping cylinder 122. This means that when compressed air enters the clamping cylinder 122 to perform the clamping action, this air pressure also acts on the inner cavity 136 of the pressure relief valve 130. Under normal circumstances, the piston rod 131 of the pressure relief valve 130 is usually pushed out by an elastic element 132 (using a coil spring), maintaining an extended state. The end of the piston rod 131 is designed to contact the side wall of the worktable 101 during the movement of the slide 121.

[0029] In this embodiment, the assembly process of workpiece 107 and shock absorber 104 is as follows: First, a worker or robot places shock absorber 104 on workbench 101, and its end mounting base 106 engages in the limiting channel 111 of first positioning device 110 to complete initial positioning. Simultaneously, workpiece 107 is placed between clamping plate 123 and positioning block 125 of second positioning device 120. Then, the clamping cylinder 122 is controlled to rotate and clamp workpiece 107. Next, the drive cylinder 103 is activated to push the entire slide 121 and the second positioning device 120 on it towards workbench 101. As slide 121 moves, the clamped workpiece 107 gradually approaches the preset installation position on shock absorber 104. When workpiece 107 is precisely pushed into place and fully installed in the preset position of shock absorber 104, the movement of the entire slide 121 also reaches the predetermined endpoint. Shortly before reaching the predetermined endpoint, the end of the piston rod 131 of the pressure relief valve 130 comes into contact with the side wall of the worktable 101 on the fixed base 100. Since the worktable 101 is fixed, while the slide 121 continues to move to the preset workpiece 107 installation position, the piston rod 131, contacting the worktable 101, overcomes the elastic force of the elastic element 132 and retracts into the pressure relief valve 130. The retraction of the piston rod 131 changes the connection between the exhaust passage 134 and the vent passage 133. The originally closed inner cavity 136 is connected to the exhaust passage 134 and the vent passage 133 by the retraction of the piston rod 131, allowing the air in the inner cavity to be discharged outward. Since the air inlet channel of the clamping cylinder 122 is connected to the inner cavity 136, this is equivalent to opening a direct pressure relief path for the pressurization chamber of the clamping cylinder 122. Compressed air is quickly discharged through this path, causing a sudden drop in air pressure inside the clamping cylinder 122 and the clamping force to disappear. It is understood that a return spring 124 is provided between the clamping plate 123 and the slide table 121. The return spring 124 is a helical tension spring, which exerts a pulling force on the end of the clamping plate 123 away from the workpiece 107. When the clamping cylinder 122 stops ejecting and releases pressure, the return spring 124 can pull the clamping plate 123 to rotate and release the workpiece 107, realizing an automatic clamping process. The operator or subsequent robotic arm can directly remove the assembled assembly without needing to issue a separate clamping operation command, greatly simplifying the process and shortening the cycle time.

[0030] Reference Figure 9In some embodiments, a drive unit 150 consisting of a motor, a gear 151, and a rack 152 is mounted on the base 100. The rack 152 is fixed to the base 100, while the gear 151 is mounted on the slide 121 and connected to the motor output shaft. When the motor rotates, the drive gear 151 rolls along the rack 152, thereby driving the slide 121 to move smoothly. This drive method may provide more precise displacement control and smoother motion characteristics. Alternatively, the rack 152 can be fixed to the slide 121, and the motor and gear 151 can be mounted on the base 100. When the motor rotates, the drive gear 151 drives the rack 152 to move, thereby driving the slide 121 to move.

[0031] In a further embodiment, when the drive device 150 moves the slide 121 towards the worktable 101, the exhaust channel of the drive cylinder 103 is connected to the air intake channel of the clamping cylinder 122 during clamping. Thus, when the drive cylinder 103 begins to exhaust air during its forward movement, the discharged gas can be used as one of the air sources to drive the clamping action of the clamping cylinder 122. The drive cylinder 103 acts as an "air pump," achieving automatic timing correlation and reducing the use of independent control valves. Furthermore, this setup facilitates worker loading. During loading, the worker places the workpiece 107 on the slide 121. Under the constraint of the limit post 126 and the positioning block 125, the workpiece 107 can be stably placed. At this time, there is no need for manual locking or opening the clamping switch; the drive system can drive the slide 121 to slide, and the gas discharged from one side of the drive cylinder 103 enters the clamping cylinder 122, causing the clamping cylinder 122 to push the clamping plate 123 to clamp the workpiece 107, achieving a follow-up clamping function. Furthermore, as the slide table 121 moves continuously, the air pressure on the exhaust side of the clamping cylinder 122 and the drive cylinder 103 continuously increases, and the pushing force of the clamping cylinder 122 continuously increases, thereby achieving a stable clamping effect. This follow-up clamping function, combined with the automatic pressure relief and clamping function mentioned above through the pressure relief valve 130, enables workers to conveniently place the workpiece 107 during loading and remove it after installation, simplifying the worker's operation steps and improving production efficiency.

[0032] In other embodiments, besides using a drive device 150 to move the slide 121 for assembly, the drive cylinder 103 can also provide power for installing the workpiece 107. Furthermore, the drive cylinder 103 and the clamping cylinder 122 share the same air source; that is, when the air path is opened, the drive cylinder 103 and the clamping cylinder 122 operate simultaneously. During the movement of the slide 121, the clamping cylinder 122 can simultaneously drive the clamping plate 123 to clamp the workpiece 107, achieving a follow-up clamping function. Combined with the automatic pressure relief valve 130 for automatic pressure relief and clamping release, automatic clamping and release are achieved, significantly simplifying the operation steps and improving processing efficiency.

[0033] When the drive device 150 moves the slide 121 towards the worktable 101, and the exhaust channel of the drive cylinder 103 is connected to the intake channel of the clamping cylinder 122 during clamping, in order to ensure a smooth assembly process and avoid excessive air pressure in the clamping cylinder that would make it difficult to push, a buffer 140 is provided in some embodiments. For example... Figure 8 As shown, the buffer 140 has a cavity 142 inside, within which is a slidable movable piston 141. The buffer 140 also has a connecting pipe 135 for connecting to an external air intake channel. A buffer element 143 is provided between one end of the movable piston 141 and the side wall of the cavity 142. This buffer element 143 can be an elastic element such as a rubber block, a polyurethane pad, or a coil spring. The cavity 142 of the buffer 140 is connected to the air intake channel of the clamping cylinder 122 and the entire drive air circuit via the connecting pipe 135. When the slide table 121 moves towards the worktable 101 for pressing, the air pressure inside the clamping cylinder 122 increases continuously as the slide table 121 moves. During long-stroke assembly (i.e., the shock absorber 104 is longer and the workpiece 107 has a larger travel distance, resulting in a larger exhaust volume from the drive cylinder 103), the maximum air pressure that the clamping cylinder 122 can withstand can easily exceed this limit. Therefore, by setting a buffer 140 between the exhaust side of the drive cylinder 103 and the intake side of the clamping cylinder 122, the air pressure in the clamping cylinder 122 can be reduced by the deformation of the buffer 143, preventing damage due to excessive air pressure or making it difficult to push the drive cylinder 103, thus ensuring a stable assembly process.

[0034] On the other hand, to avoid a hard collision between the workpiece 107 and the shock absorber 104, especially when the drive mechanism moves the slide table 121 for press-fitting, the buffer 140 also has a corresponding buffering function. When the slide table 121 moves towards the worktable 101 for press-fitting, if it encounters resistance (e.g., the workpiece 107 and the hole of the shock absorber 104 are being aligned during press-fitting), or even a hard collision due to inaccurate alignment, the air pressure in the drive air circuit may rise instantaneously. This increased air pressure is transmitted to the cavity 142 of the buffer 140, pushing the moving piston 141 to move and compress the buffer member 143. The compression process of the buffer member 143 absorbs some energy, playing a role in buffering and vibration absorption, making the press-fitting process smoother and more stable, and protecting the mating surfaces of the workpiece and the shock absorber from damage. This buffering design is particularly suitable for assembly scenarios requiring interference fits or precise alignment.

[0035] In summary, the front shock absorber assembly mechanism provided by this invention uses a first positioning device 110 to precisely position the shock absorber 104 at its end, and a second positioning device 120 to integrate clamping, pushing, and automatic release functions. Its core innovation lies in utilizing a mechanically triggered pressure relief valve 130 to convert the physical movement endpoint signal of the slide table 121 into a pressure relief action, thereby automatically releasing the pressure on the clamping cylinder 122 and achieving synchronous release of the clamping mechanism. The entire process is seamless and highly automated, eliminating the need for additional sensors and complex electronically controlled release steps, thus reducing equipment costs and operational difficulty. This makes the entire mechanism not only highly efficient and fast-paced, but also easy to operate, requiring low worker skill levels, and providing a smooth and reliable assembly process. The compact structure of the entire mechanism minimizes space occupation on the production line, making it ideal for the high-efficiency, high-quality, and compact assembly tooling requirements of modern motorcycle production lines.

[0036] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A front shock absorber assembly mechanism, characterized in that, include: The base includes a worktable, a first positioning device, and a second positioning device. The worktable is used to place the shock absorber. The first positioning device has a limiting channel, within which one end of the shock absorber can be placed, thus positioning the end of the shock absorber. The second positioning device includes a slide, a clamping cylinder, a clamping plate, and a pressure relief valve. The slide is slidably connected to the base. The clamping cylinder can drive the clamping plate to rotate and clamp the workpiece. The pressure relief valve has a piston rod, and the air inlet channel of the clamping cylinder is connected to the inner cavity of the pressure relief valve. The second positioning device is movable to position the workpiece at a preset position on the shock absorber. When the workpiece reaches the preset position, the piston rod abuts against the side wall of the worktable and retracts, thereby connecting the inner cavity to the outside, releasing the pressure of the clamping cylinder, and achieving automatic release.

2. The front shock absorber assembly mechanism according to claim 1, characterized in that, The base is equipped with a drive cylinder, which can drive the slide to move. When the drive cylinder pushes the slide to move towards the worktable, the air intake channel of the drive cylinder is connected to the inner cavity of the pressure relief valve.

3. The front shock absorber assembly mechanism according to claim 1, characterized in that, The base is equipped with a drive cylinder and a drive device. The drive device can drive the slide to move towards the worktable, and the exhaust channel of the drive cylinder is connected to the air intake channel of the clamping cylinder when clamping.

4. The front shock absorber assembly mechanism according to claim 1, characterized in that, It also includes a buffer, which has a cavity with a slidable piston inside. One end of the piston is connected to a buffer member on the side wall of the cavity. When the air pressure inside the cavity increases, the piston can move to compress the buffer member.

5. A front shock absorber assembly mechanism according to claim 4, characterized in that, When the slide moves toward the worktable, the air intake channel of the clamping cylinder and the cavity of the buffer are connected to each other.

6. A front shock absorber assembly mechanism according to claim 1, characterized in that, The inner walls on both sides of the limiting channel are provided with multiple pivotally connected rollers, which can abut against the outer peripheral wall of the shock absorber.

7. A front shock absorber assembly mechanism according to claim 1, characterized in that, The limiting channel includes a guide section and a positioning section. The guide section is provided with multiple rollers and has a protruding boss with an inclined surface. The inclined surface can guide the shock absorber to fall into the positioning section.

8. A front shock absorber assembly mechanism according to claim 1, characterized in that, The slide is provided with a positioning block and a limiting post. When the clamping piece presses against one side of the workpiece, the other side of the workpiece can abut against the positioning block. The limiting post is located on the side of the workpiece facing away from the positioning block.

9. A front shock absorber assembly mechanism according to claim 1, characterized in that, The slide is equipped with a return spring, one end of which is connected to the clamping plate. During material feeding, the return spring can drive the clamping plate to open and release the clamp.

10. A front shock absorber assembly mechanism according to claim 1, characterized in that, The workbench is equipped with a reference block. When the shock absorber is placed on the workbench, the reference block can abut against the end of the shock absorber's cylinder body to achieve axial positioning.

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