Automobile shock absorber piston rod end head processing equipment

Abstract

This invention relates to the field of automotive parts processing and manufacturing technology, specifically to a processing equipment for the piston rod end of an automotive shock absorber. The equipment includes a frame, a positioning mechanism, a first drive assembly, a processing mechanism, and a conveyor belt. The positioning mechanism includes two support plates, and a second drive assembly is also provided on the processing mechanism. By setting a positioning mechanism coaxial with the processing mechanism, the traditional multi-station lateral rotation is eliminated, thus removing the cumulative positioning error caused by repeated clamping. This allows the piston rod to smoothly and horizontally detach from the positioning area, fundamentally preventing damage to the newly processed end during unloading.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing and manufacturing technology, specifically to a processing equipment for the piston rod end of an automotive shock absorber. Background Technology

[0002] In the manufacturing process of automotive shock absorbers, the machining of the piston rod end is an extremely critical step. Because the piston rod is a slender shaft part, and its outer surface is typically treated with high-gloss finishes such as chrome plating, the requirements for coaxiality positioning accuracy and surface scratch and impact resistance are extremely high during automated machining processes. Currently, existing automated piston rod machining equipment typically employs a multi-station design, using multi-axis robotic arms or lateral translation and pushing mechanisms to transfer the piston rod from the loading station to the machining station, and then, after machining, to the unloading station.

[0003] However, in actual high-frequency operation, this traditional existing technology still requires repeated clamping, moving, and then releasing during lateral turnover between multiple workstations. Frequent rigid clamping easily damages the original coaxiality of the piston rod, causing slight eccentricity when entering the machine tool. This not only accelerates the wear of the forming mold but also seriously affects the machining accuracy of the end. At the same time, multi-axis robots or lateral translation mechanisms require a large rotation or translation space, resulting in a large overall footprint and bulky structure. Furthermore, the piston rod after end machining is extremely fragile. Existing equipment either uses a robot to rigidly grip the piston rod during unloading or directly pushes it laterally into the flat plate. This lateral frictional sliding or uncontrolled drop easily causes the newly machined precision end to collide hard with the baffle or the finished product, resulting in microscopic defects in the threads or scratches on the rod surface, directly increasing the product scrap rate. Summary of the Invention

[0004] To address the aforementioned issues, a processing device for the piston rod end of an automotive shock absorber is provided. By setting a positioning mechanism coaxial with the processing mechanism, and by setting a first drive assembly and a second drive assembly, the traditional multi-station lateral rotation is eliminated, thus removing the cumulative positioning error caused by repeated clamping. This allows the piston rod to smoothly and horizontally detach from the positioning area, fundamentally preventing bump damage to the newly processed end during the unloading process.

[0005] To address the problems of existing technologies, this invention provides a processing device for the piston rod end of an automotive shock absorber, comprising a frame, and: a positioning mechanism disposed on the frame, the positioning mechanism including two support plates that can open and close relative to each other, the two support plates forming a V-shaped groove in the closed state, the V-shaped groove being used to support and radially position the piston rod; a processing mechanism disposed beside the frame, the feed axis of the processing mechanism being coaxial with the central axis of the V-shaped groove, used for processing the end of the piston rod; and a first drive assembly disposed on the frame. The upper part is used to push the piston rod in the V-groove into the processing mechanism along the central axis of the V-groove; the second drive assembly is located at the processing mechanism and is used to push the piston rod back into the V-groove along the central axis of the V-groove after processing; the conveyor belt is located below the positioning mechanism; when the piston rod is pushed back into the V-groove by the second drive assembly, the two support plates open relative to each other to make the piston rod lose support, and the piston rod falls vertically onto the conveyor belt and is output by the conveyor belt in a directional manner.

[0006] Preferably, the two support plates are rotatably mounted on the frame, and the frame is provided with a drive cylinder for synchronously driving the two support plates to rotate. Two mirror-symmetrical connecting rods are hinged to the output end of the drive cylinder, and the other ends of the two connecting rods are respectively connected to the two support plates.

[0007] Preferably, the first drive assembly includes a feed cylinder and a pusher connected to the output end of the feed cylinder, and an elastic buffer is provided on the end face of the pusher that contacts the piston rod.

[0008] Preferably, a feeding trough and a lifting push plate are provided on the side of the positioning mechanism, and the lifting push plate is used to lift the piston rod in the feeding trough upward for output.

[0009] Preferably, a downwardly inclined ramp is provided between the lifting push plate and the V-shaped groove, and a rotatable baffle is provided on the ramp; the baffle is used to separate the piston rods output by the lifting push plate to the ramp one by one and push them into the V-shaped groove.

[0010] Preferably, the second drive component includes a material ejection cylinder, and the axis of motion of the material ejection cylinder and the axis of motion of the first drive component are both collinear with the central axis of the V-groove.

[0011] Preferably, the conveyor belt's conveying direction is parallel to the central axis of the V-shaped groove; at least one side of the conveyor belt is provided with a protective plate along the conveying direction.

[0012] Preferably, a collection mechanism is also provided on the side of the conveyor belt. The collection mechanism includes a recycling trough and a third drive assembly. The direction of movement of the third drive assembly is perpendicular to the conveying direction of the conveyor belt, and it is used to laterally push the piston rod that has moved to the side of the third drive assembly into the recycling trough.

[0013] Preferably, a first sensor and a second sensor are respectively provided on the baffle and one of the support plates; the first sensor is used to detect whether a piston rod is in place and trigger the baffle to separate and push the material; the second sensor is used to detect whether the piston rod has completely fallen between the two support plates and trigger the first drive assembly to push.

[0014] Preferably, a third sensor is provided on the conveyor belt. The third sensor is used to detect whether the piston rod moves with the conveyor belt to a predetermined unloading position and triggers the pushing action of the third drive assembly.

[0015] The advantages of this invention compared to the prior art are: 1. This invention, by setting a positioning mechanism coaxial with the processing mechanism, as well as a first drive assembly and a second drive assembly, eliminates the traditional multi-station lateral rotation, removes the cumulative positioning error caused by repeated clamping, and ensures high coaxiality during the processing. When the piston rod is pushed back along its original path, the relative opening of the two support plates causes the piston rod to instantly lose support and fall vertically onto the conveyor belt below under gravity. This bottom-evacuation unloading method avoids any form of lateral friction or interference from the gripping of a rigid robotic arm, allowing the piston rod to leave the positioning area in a stable horizontal posture, fundamentally preventing bump damage to the newly processed end during unloading.

[0016] 2. This invention, by setting a drive cylinder and two mirror-symmetrical connecting rods on the frame, synchronously converts the linear power of a single cylinder into the relative flipping motion of two support plates at equal speeds and angles. The mirror-symmetrical connecting rods, with their mechanical rigidity, ensure absolute synchronization of each opening of the V-groove, ensuring that the piston rod loses support on both sides simultaneously the instant it leaves the positioning area, thereby maintaining a perfect horizontal falling posture and further solidifying the anti-collision technical effect.

[0017] 3. By setting an elastic buffer on the pusher of the first drive assembly, the present invention further optimizes the force state of the piston rod during coaxial feeding. It can absorb the transient impact kinetic energy through its own deformation first, and transform the rigid impact into a smooth and uniform flexible thrust. This not only protects the end face of the workpiece, but also ensures the absolute stability of the piston rod when it enters the processing mechanism, thus cutting off the adverse factors affecting the end processing quality from the source of feeding. Attached Figure Description

[0018] Figure 1A three-dimensional structural diagram of a processing equipment for the piston rod end of an automotive shock absorber. Figure 1 .

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 This is a top view of a machine for processing the piston rod end of an automotive shock absorber.

[0021] Figure 4 This is a side view of the frame and positioning mechanism in a processing equipment for the piston rod end of an automotive shock absorber.

[0022] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0023] Figure 6 A three-dimensional structural diagram of a processing equipment for the piston rod end of an automotive shock absorber. Figure 2 .

[0024] Figure 7 yes Figure 6 A magnified view of point C in the middle.

[0025] Figure 8 This is a three-dimensional structural diagram of the frame and positioning mechanism in a processing equipment for the piston rod end of an automotive shock absorber.

[0026] Figure 9 yes Figure 8 Enlarged view of point D in the middle.

[0027] Figure 10 This is a three-dimensional structural diagram of the processing mechanism in a processing equipment for the piston rod end of an automotive shock absorber.

[0028] The diagram is labeled as follows: 1. Frame; 11. Positioning mechanism; 111. Support plate; 1111. V-groove; 1112. Drive cylinder; 1113. Connecting rod; 1114. First sensor; 12. First drive assembly; 121. Feed cylinder; 122. Push head; 13. Conveyor belt; 131. Protective plate; 132. Third sensor; 14. Feeding chute; 141. Lifting push plate; 142. Inclined ramp; 1421. Baffle; 1422. Second sensor; 15. Collection mechanism; 151. Recycling trough; 152. Third drive assembly; 2. Processing mechanism; 21. Second drive assembly; 211. Unloading cylinder; 3. Piston rod. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 5 and Figure 10 As shown: A processing device for the end of an automotive shock absorber piston rod includes a frame 1, and: a positioning mechanism 11, disposed on the frame 1, the positioning mechanism 11 including two support plates 111 that can open and close relative to each other, the two support plates 111 forming a V-groove 1111 when closed, the V-groove 1111 being used to support and radially position the piston rod 3; a processing mechanism 2, disposed beside the frame 1, the feed axis of the processing mechanism 2 being coaxial with the central axis of the V-groove 1111, used to process the end of the piston rod 3; a first drive assembly 12, disposed on the frame 1, used to drive the V-groove 1111... The piston rod 3 inside the V-groove 111 is pushed into the processing mechanism 2 along the central axis of the V-groove 1111; the second drive assembly 21 is located at the processing mechanism 2 and is used to push the piston rod 3 back into the V-groove 1111 along the central axis of the V-groove 1111 after processing; the conveyor belt 13 is located below the positioning mechanism 11; when the piston rod 3 is pushed back into the V-groove 1111 by the second drive assembly 21, the two support plates 111 open relative to each other to make the piston rod 3 lose support, and the piston rod 3 falls vertically onto the conveyor belt 13 and is output directionally by the conveyor belt 13.

[0031] In traditional piston rod processing equipment, material flow often relies on multi-station robotic arms for gripping and handling. This lateral or multi-axial transfer not only results in redundant equipment footprint but also easily leads to cumulative positioning errors during repeated gripping and placement, and even scratches on the precision-machined end surface. To solve this common problem, this equipment provides a highly integrated linear closed-loop flow configuration. The main body of the equipment uses a frame 1 as a basic support platform, and a positioning mechanism 11 is stably mounted on the frame 1. The positioning mechanism 11 includes two support plates 111 that can open and close relative to each other. When the two support plates 111 are closed, they together form a V-groove 1111. The V-groove 1111 uses its geometric symmetry plane to support and precisely radially position the piston rod 3, ensuring its center is naturally aligned. A processing mechanism 2 is arranged on the side of the frame 1. The feed axis of the processing mechanism 2 is strictly coaxial with the central axis of the V-groove 1111, and it is specifically used for specific process processing of the end of the piston rod 3. In the feeding process, the first drive assembly 12, mounted on the frame 1, is activated to provide a smooth linear thrust, which pushes the piston rod 3 in the V-groove 1111 along the central axis of the V-groove 1111 into the processing mechanism 2 to complete the processing operation. After processing, the second drive assembly 21, mounted on the processing mechanism 2, immediately actuates to push the piston rod 3 back into the V-groove 1111 along the central axis of the V-groove 1111. To achieve non-destructive and rapid material discharge and avoid mechanism interference, the conveyor belt 13, located below the positioning mechanism 11, takes over the subsequent actions. After the piston rod 3 is safely pushed back into the V-groove 1111 by the second drive assembly 21, the two support plates 111 quickly open relative to each other, causing the piston rod 3 to lose its rigid support at the bottom. The piston rod 3, relying on its own gravity, maintains a horizontal posture and falls vertically onto the conveyor belt 13, which then directs it to the next process. This coaxial forward and backward combined vertical unloading setup completely eliminates radial friction and the turning motion of the external robot during the unloading process, significantly shortening the processing cycle while maximizing the protection of the surface finish of the processed end.

[0032] like Figures 3 to 9 As shown: Two support plates 111 are rotatably mounted on the frame 1. The frame 1 is equipped with a drive cylinder 1112 for synchronously driving the two support plates 111 to rotate. Two mirror-symmetrical connecting rods 1113 are hinged to the output end of the drive cylinder 1112. The other ends of the two connecting rods 1113 are respectively connected to the two support plates 111.

[0033] To ensure the consistency of movement and structural stability of the two support plates 111 during frequent and high-frequency opening and closing, and to prevent the piston rod 3 from tilting and jamming due to unilateral movement lag, the two support plates 111 are rotatably mounted on the frame 1, and the frame 1 is equipped with a drive cylinder 1112 for synchronously driving the two support plates 111 to rotate. In terms of power distribution, two mirror-symmetrical connecting rods 1113 are hinged to the output end of the drive cylinder 1112, and the other ends of the two connecting rods 1113 are respectively connected to the two support plates 111. When the material dropping command is executed, the output end of the drive cylinder 1112 retracts or extends linearly, and the force is synchronously transmitted to the force-bearing ends of the two support plates 111 through the two mirror-symmetrical connecting rods 1113, forcing them to rotate relative to each other at the same speed and angle around the fulcrum. This mirror-shaped connecting rod 1113 achieves absolutely symmetrical bilateral drive with a single power source. The mechanical rigidity constraint ensures that the piston rod 3 loses support on both sides at the moment the V-shaped groove 1111 formed by the two support plates 111 opens, thus ensuring its absolutely stable posture when falling vertically.

[0034] like Figures 5 to 9 As shown: The first drive assembly 12 includes a feed cylinder 121 and a pusher 122 connected to the output end of the feed cylinder 121. An elastic buffer is provided on the end face of the pusher 122 that contacts the piston rod 3.

[0035] Under the dynamic condition of high-speed material feeding into the mold, rigid impact can easily cause stress concentration or microscopic deformation at the tail of the piston rod 3. To further optimize the force state during feeding, the first drive assembly 12 includes a feeding cylinder 121 and a pusher 122 connected to the output end of the feeding cylinder 121. An elastic buffer (not shown in the figure) is provided on the end face of the pusher 122 that contacts the piston rod 3. In terms of specific mechanical structure, the elastic buffer can be a mechanical helical spring or disc spring assembly embedded inside the pusher 122, which uses the physical compression stroke of the spring to linearly absorb the initial kinetic energy; or, in the case of limited space, the elastic buffer can also be a solid buffer pad made of high-density polyurethane, industrial wear-resistant rubber or other polymer flexible pressure-resistant materials, which directly covers or is embedded in the end face of the pusher 122. At the instant the feed cylinder 121 rapidly drives the pusher 122 to impact the end of the piston rod 3, the elastic buffer first undergoes force deformation, fully absorbing and dissipating excess impact kinetic energy, and then smoothly and evenly applies a thrust to the end face of the piston rod 3. This structure effectively avoids metal fatigue wear caused by hard impacts, significantly extends the service life of the pusher 122, and ensures that the end face of the workpiece remains intact.

[0036] like Figures 1 to 3 , Figure 5 and Figure 8As shown: A feeding trough 14 and a lifting push plate 141 are provided on the side of the positioning mechanism 11. The lifting push plate 141 is used to lift the piston rod 3 in the feeding trough 14 upward for output.

[0037] To address the inefficiency caused by frequent manual intervention during mass production, the equipment is equipped with a feeding trough 14 and a lifting pusher plate 141 located beside the positioning mechanism 11. Operators or upstream material lines can place large batches of piston rods 3 into the feeding trough 14 in a disordered manner. The lifting pusher plate 141 continuously reciprocates along a preset guide trajectory, smoothly lifting the piston rods 3 at the bottom of the feeding trough 14 upwards for output. This structure creates a sufficiently large material buffer area on the side of the machine, initially transforming the batch of stacked materials into a longitudinal sequence, greatly reducing the frequency of manual intervention and providing a continuous supply of materials for subsequent high-speed assembly line operations.

[0038] like Figures 3 to 9 As shown: A downwardly inclined ramp 142 is provided between the lifting push plate 141 and the V-shaped groove 1111, and a rotatable baffle 1421 is provided on the ramp 142; the baffle 1421 is used to separate the piston rods 3 that are output from the lifting push plate 141 to the ramp 142 one by one and push them into the V-shaped groove 1111.

[0039] After the lifting push plate 141 delivers multiple piston rods 3 to a high position, to prevent the piston rods 3 from sticking together due to residual anti-rust oil or being squeezed by gravity and simultaneously rushing into the positioning mechanism 11, causing congestion and jamming, a downwardly inclined ramp 142 is provided between the lifting push plate 141 and the V-shaped groove 1111. A rotatable baffle 1421 is provided on the ramp 142. To achieve high-frequency and precise dispensing action, the rotation axis of the baffle 1421 is connected to an independent automated drive mechanism. This drive mechanism can be a linear cylinder or electric actuator that converts linear push-pull to rotary motion through a hinged crank-connecting rod mechanism, or a swing cylinder that directly outputs rotational torque. As the lifted piston rod 3 rolls downwards along the ramp 142 under the influence of gravitational potential energy, it is stopped by the baffle 1421, which is in a stationary interception state. Subsequently, the baffle 1421, controlled by a cylinder or electric actuator, performs an indexing action of rotation angle, using its outer contour to separate and peel out the foremost piece of material. The baffle 1421 is used to separate the piston rods 3 output by the lifting push plate 141 onto the ramp 142 one by one, and smoothly push them into the V-shaped groove 1111. This arrangement achieves strict physical isolation, cutting off the potential danger of double materials overlapping and entering the V-shaped groove 1111 from the source.

[0040] like Figures 1 to 3 andFigure 10 As shown: The second drive component 21 includes a material ejection cylinder 211, the axis of motion of the material ejection cylinder 211 and the axis of motion of the first drive component 12 are both collinear with the central axis of the V-groove 1111.

[0041] To ensure that the piston rod 3, with its extremely slender structure, is subjected to absolutely centered force when exiting the processing area, and to avoid secondary friction and scratching between the precision-formed end and the inner wall of the processing mold due to slight eccentric forces, the second drive assembly 21 includes a ejector cylinder 211. In terms of spatial arrangement, the axis of motion of the ejector cylinder 211 and the axis of motion of the first drive assembly 12 are both collinear with the central axis of the V-groove 1111. This means that the three core actions of feeding, main machine processing, and ejection push occur entirely on the same absolute geometric straight line. The thrust vector provided by the ejector cylinder 211 perfectly penetrates the axial direction of the piston rod 3's center of gravity, effectively eliminating any lateral bending moment that could cause rod deformation, maintaining high-precision ejection guidance with a minimalist linear dynamic structure.

[0042] like Figure 1 , Figure 2 , Figures 5 to 8 As shown: the conveying direction of the conveyor belt 13 is parallel to the central axis of the V-shaped groove 1111; at least one side of the conveyor belt 13 is provided with a protective plate 131 along the conveying direction.

[0043] When the piston rod 3 completes its full axial displacement and falls vertically into the conveyor channel below, due to the inherent characteristics of its cylindrical shape, there is an inherent risk that it will roll and fall off the conveyor line upon landing. To address this, the conveying direction of the conveyor belt 13 is parallel to the central axis of the V-groove 1111, and a protective plate 131 is provided on at least one side of the conveyor belt 13 along the conveying direction. To further improve the stability of material reception, the bearing surface of the conveyor belt 13 can be a special structure integrally formed with continuous longitudinal positioning grooves, or a contoured synchronous belt with a concave trapezoidal cross-section (the conveyor belt 13 in the figure is for illustrative purposes only). When the piston rod 3 falls and contacts the surface of the conveyor belt 13, the concave contour of the conveyor belt 13 itself, together with the protective plate 131 on the side, performs secondary centering and rigid limiting of the falling piston rod 3, forcing the piston rod 3 to remain stable within the bearing surface, thereby ensuring that the material is continuously and directionally output outward along the main axis in a uniform and parallel manner.

[0044] like Figures 1 to 3 and Figure 5As shown: A collection mechanism 15 is also provided on the side of the conveyor belt 13. The collection mechanism 15 includes a recycling trough 151 and a third drive assembly 152. The direction of movement of the third drive assembly 152 is perpendicular to the conveying direction of the conveyor belt 13, and is used to push the piston rod 3, which has moved to the side of the third drive assembly 152, laterally into the recycling trough 151.

[0045] To achieve orderly and compact stacking after unloading, eliminating the tedious manual sorting and handling at the tail end, a collection mechanism 15 is also provided on the side of the conveyor belt 13. The collection mechanism 15 specifically includes a recycling trough 151 and a third drive assembly 152. When the piston rod 3 is conveyed to a specific workstation area by the conveyor belt 13, the direction of movement of the third drive assembly 152 is perpendicular to the conveying direction of the conveyor belt 13, and it instantly exerts force to push the piston rod 3, which has moved to the side of the third drive assembly 152, laterally into the recycling trough 151. This right-angle change-of-track pushing and unloading method not only makes full use of the extended space on the side of the machine, but also allows the long-wheelbase piston rod 3 to be arranged closely and automatically stacked neatly in the recycling trough 151, providing great logistical convenience for subsequent full-frame warehousing or batch transfer.

[0046] like Figures 3 to 9 As shown: A first sensor 1114 and a second sensor 1422 are respectively provided on the baffle 1421 and one of the support plates 111; the first sensor 1114 is used to detect whether the piston rod 3 is in place and trigger the baffle 1421 to separate and push the material; the second sensor 1422 is used to detect whether the piston rod 3 has completely fallen between the two support plates 111 and trigger the first drive assembly 12 to push.

[0047] Modern automated equipment demands precise timing of operations, and blind operation relying solely on time relays is insufficient to handle occasional material shortages or jams. Therefore, signal monitoring is incorporated into the equipment at critical operation points. A first sensor 1114 and a second sensor 1422 are respectively installed on the baffle 1421 and one of the support plates 111. Specifically, the first sensor 1114 and the second sensor 1422 are preferably capacitive proximity switches resistant to interference from metal cutting fluid and oil, or diffuse reflection photoelectric sensors with extremely high response frequencies. Upon detecting the metallic outline of the piston rod 3, these sensors output real-time high / low level digital signals or switching pulse signals to the equipment's control center. In the workflow, the first sensor 1114 detects whether the piston rod 3 is in position. Only when the level signal confirms that there is sufficient material at the front end of the ramp 142 is the baffle 1421 triggered to separate and move the material. The second sensor 1422 detects whether the piston rod 3 has completely fallen between the two support plates 111. That is, after confirming through signal feedback that the piston rod 3 is in the correct processing position at the bottom of the V-groove 1111, the first drive assembly 12 is triggered to push in. This sensor network based on the detection of physical material status signals achieves strict conditional interlocking between the front and rear mechanical actions, completely preventing mold scrap caused by empty push operation or misaligned hard push.

[0048] like Figures 1 to 3 As shown: A third sensor 132 is provided on the conveyor belt 13. The third sensor 132 is used to detect whether the piston rod 3 moves with the conveyor belt 13 to the predetermined unloading position and trigger the pushing action of the third drive assembly 152.

[0049] Similarly, at the critical final stage of product output, to ensure that no cutting errors occur during lateral unloading, a third sensor 132 is installed on the conveyor belt 13. The third sensor 132 can also be a fiber optic sensor or a laser rangefinder with strong anti-interference capabilities, and its signal output is directly connected to the control unit. The third sensor 132 is used to detect whether the piston rod 3 moves with the conveyor belt 13 to the predetermined unloading position. When its photoelectric sensing area accurately detects that the end of the piston rod 3 has crossed a set threshold position and generates an electrical signal jump, it sends a switch execution signal to the system and triggers the pushing action of the third drive component 152.

[0050] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A processing equipment for the piston rod end of an automotive shock absorber, characterized in that, Including racks, and: A positioning mechanism is provided on the frame. The positioning mechanism includes two support plates that can open and close relative to each other. When the two support plates are closed, they together form a V-shaped groove. The V-shaped groove is used to support and radially position the piston rod. A processing mechanism is located beside the frame, and the feed axis of the processing mechanism is coaxial with the central axis of the V-groove, for processing the end of the piston rod; A first drive assembly is mounted on the frame and is used to push the piston rod in the V-groove into the processing mechanism along the central axis of the V-groove. The second drive assembly is disposed at the processing mechanism and is used to push the piston rod back into the V-groove along the central axis direction of the V-groove after processing is completed. A conveyor belt is positioned below the positioning mechanism; When the piston rod is pushed back into the V-groove by the second drive assembly, the two support plates open relative to each other, causing the piston rod to lose its support. The piston rod then falls vertically onto the conveyor belt and is directionally output by the conveyor belt.

2. The automotive shock absorber piston rod end processing equipment according to claim 1, characterized in that, The two support plates are rotatably mounted on the frame. The frame is equipped with a drive cylinder for synchronously driving the two support plates to rotate. Two mirror-symmetrical connecting rods are hinged to the output end of the drive cylinder. The other ends of the two connecting rods are respectively connected to the two support plates.

3. The automotive shock absorber piston rod end processing equipment according to claim 1, characterized in that, The first drive assembly includes a feed cylinder and a pusher connected to the output end of the feed cylinder. An elastic buffer is provided on the end face of the pusher that contacts the piston rod.

4. The automotive shock absorber piston rod end processing equipment according to claim 1, characterized in that, The positioning mechanism is provided with a feeding trough and a lifting push plate located at the feeding trough. The lifting push plate is used to lift the piston rod in the feeding trough upwards for output.

5. The automotive shock absorber piston rod end processing equipment according to claim 4, characterized in that, A downward-sloping ramp is provided between the lifting push plate and the V-shaped groove, and a rotatable baffle is provided on the ramp; the baffle is used to separate the piston rods output by the lifting push plate to the ramp one by one and push them into the V-shaped groove.

6. The automotive shock absorber piston rod end processing equipment according to claim 1, characterized in that, The second drive assembly includes a material ejection cylinder, the axis of motion of which is collinear with the axis of motion of the first drive assembly and the central axis of the V-groove.

7. The automotive shock absorber piston rod end processing equipment according to claim 1, characterized in that, The conveyor belt is parallel to the central axis of the V-shaped groove in the conveying direction; a protective plate is provided on at least one side of the conveyor belt along the conveying direction.

8. The automotive shock absorber piston rod end processing equipment according to claim 7, characterized in that, A collection mechanism is also provided on the side of the conveyor belt. The collection mechanism includes a recycling trough and a third drive assembly. The direction of movement of the third drive assembly is perpendicular to the conveying direction of the conveyor belt, and it is used to push the piston rod that has moved to the side of the third drive assembly laterally into the recycling trough.

9. The automobile shock absorber piston rod end processing equipment according to claim 5, characterized in that, A first sensor and a second sensor are respectively provided on the baffle and one of the support plates; the first sensor is used to detect whether a piston rod is in place and trigger the baffle to separate and push the material; the second sensor is used to detect whether the piston rod has completely fallen between the two support plates and trigger the pushing action of the first drive assembly.

10. The automotive shock absorber piston rod end processing equipment according to claim 8, characterized in that, A third sensor is installed on the conveyor belt. The third sensor is used to detect whether the piston rod moves with the conveyor belt to the predetermined unloading position and trigger the pushing action of the third drive component.

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