A punching and chamfering machine for shock absorber round tubes

Abstract

This invention discloses an integrated punching and chamfering machine for shock absorber round tubes, relating to the technical field of tube punching and chamfering processing equipment. It has the advantage of reducing manual intervention and thus improving production efficiency. The key technical points are: it includes a worktable, a sliding plate, a ring, a drive mechanism, a storage mechanism, a positioning mechanism, a contact mechanism, and a feeding mechanism. Punching and chamfering machines are arranged side-by-side with staggered vertical alignment on the worktable. The ring has a transfer ring with a side groove. Intermittent rotation enables automatic transfer of the round tube between the feeding, punching, chamfering, and feeding stations. The positioning mechanism inserts into the round tube and uses a gear ring to automatically align the punched hole upwards. The contact mechanism holds the round tube tightly during processing and automatically unlocks during transfer. The feeding mechanism automatically unloads the finished product. This invention integrates punching and chamfering into one machine and achieves fully automatic handling and positioning, improving processing efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of pipe punching and chamfering equipment, specifically a punching and chamfering integrated machine for shock absorber round pipes. Background Technology

[0002] In modern manufacturing, shock absorbers are key components of automobiles, motorcycles, and various types of machinery. Their processing quality and efficiency directly affect the performance and safety of the entire vehicle. The round tubular parts in shock absorbers typically require two processes: sidewall punching and orifice chamfering, to meet the requirements of subsequent assembly.

[0003] In traditional processing, punching and chamfering are two separate and independent processes. Operators need to first place the round tube workpiece on the punching machine to punch holes, and then manually remove the workpiece and transfer it to the chamfering machine to chamfer the punched holes. This production method, which relies on manual handling and transfer, is not only cumbersome but also inefficient.

[0004] Therefore, there is an urgent need for an integrated punching and chamfering machine for shock absorber round tubes. This equipment retains two independent actuators for punching and chamfering, and incorporates an automated transport mechanism to transfer the workpiece between the two processes, thereby reducing manual intervention and improving production efficiency. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an integrated punching and chamfering machine for shock absorber round tubes, which has the advantage of reducing manual intervention and thus improving production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention provides an integrated punching and chamfering machine for shock absorber round tubes, comprising: A workbench with a punching machine and a chamfering machine arranged side by side. A base is provided on the workbench, and the punching machine is located on the top of the base, so that the punching machine and the chamfering machine are staggered vertically. A sliding plate is horizontally connected to a workbench, which is equipped with a power source for driving the sliding plate to move horizontally. A circular ring is set at the top of the slide plate. A turntable is rotatably connected inside the circular ring. A transfer ring is coaxially provided on the side of the turntable facing the punching machine and the chamfering machine. Four side grooves are evenly opened along the circumference on the arc-shaped wall of the transfer ring. The drive mechanism, mounted on the circular ring, is used to drive the transfer ring to rotate intermittently; A storage mechanism is provided at the top of a circular ring for storing circular tubes. The top of the circular ring has an open slot for connecting the storage mechanism to a side slot located above the transfer ring. A positioning mechanism, set on a circular ring, is used to extend into a circular tube inside a side groove, and to make the hole on the circular tube face upward after the transfer ring rotates; An abutting mechanism is provided on the ring. When the first side groove rotates to correspond with the punching machine or chamfering machine, the abutting mechanism presses the round tube against the groove wall of the first side groove. The feeding mechanism is set on the ring. After the round tube is chamfered, the feeding mechanism is used to take the round tube out of the side groove.

[0007] By adopting the above technical solution, the round tube automatically falls from the storage mechanism into the side groove at the loading station. Then, the transfer ring rotates intermittently by 90°, causing the round tube to sequentially pass through the punching station corresponding to the punching machine, the chamfering station corresponding to the chamfering machine, and the unloading station corresponding to the unloading mechanism. At the punching and chamfering stations, the contact mechanism holds the round tube tightly, and the sliding plate moves horizontally to insert the round tube into the corresponding chamfering and punching machines for processing. After punching, the positioning mechanism inserts the round tube and uses a gear ring to automatically rotate the hole on the round tube upwards, preparing it for chamfering. The entire process requires no manual handling, improving production efficiency.

[0008] Preferably, the storage mechanism includes a conical funnel, the bottom end of which is connected to the opening groove. One side of the conical funnel is provided with an arc-shaped receiving plate via a connecting plate. The receiving plate is located on the side of the transfer ring away from the turntable and corresponds to a side groove connected to the opening groove, and is used to support one end of the round tube falling from the opening groove into the side groove.

[0009] Preferably, the groove wall of the first side groove near the center of the transfer ring is an arc-shaped surface adapted to the outer wall of the circular tube, the opposite two side groove walls of the first side groove are inclined surfaces, and the distance between the two side walls gradually increases from the bottom of the groove to the opening of the groove.

[0010] Preferably, the abutting mechanism includes two mounting boxes disposed on the outer wall of the ring. The two mounting boxes are respectively disposed close to the punching machine and the chamfering machine. A slider is slidably connected inside the mounting box. A compression spring is disposed between the slider and the bottom of the mounting box. A trapezoidal plate is disposed on the side of the slider away from the compression spring. Two guide rollers are rotatably connected on the side of the trapezoidal plate facing the center of the transfer ring. The two guide rollers are disposed along the length direction of the side groove. When the side groove rotates to correspond to the punching machine or the chamfering machine, the two guide rollers on the trapezoidal plate abut against the outer wall of the round tube and press the round tube against the arcuate wall of the side groove. When the transfer ring rotates, the inclined sidewall of the first side groove contacts the inclined surface of the trapezoidal plate and forces the trapezoidal plate to overcome the elastic force of the first compression spring and move away from the center of the transfer ring.

[0011] Preferably, the positioning mechanism includes: A fixed ring is coaxially disposed on the outer wall of the circular ring. A fixed cylinder is coaxially disposed on the outer wall of the fixed ring. A sliding ring is horizontally slidably connected inside the fixed cylinder. The sliding ring is coaxial with the fixed cylinder. A push plate is coaxially rotatably connected to the side of the sliding ring away from the circular ring. Several rectangular rods are evenly distributed along the circumference of the push plate and rotatably connected to the push plate. A toothed ring is coaxially provided on the inner wall of the sliding ring. Each rectangular rod is provided with a gear that meshes with the toothed ring. The gear is located inside the toothed ring. The positioning posts are arranged horizontally, with one end of each positioning post having a slot for the corresponding rectangular rod to be inserted horizontally. The rectangular rod can slide axially within the slot. The top of each positioning post has a mounting groove communicating with the slot. The turntable has several connecting grooves, each corresponding to a side groove. The end of each positioning post away from the rectangular rod passes through the corresponding connecting groove and can extend into or out of the corresponding side groove. The end of each positioning post away from the connecting groove has a retaining ring. A triangular lifting plate is vertically slidably connected between the opposite two sides of the slot wall of each slot. Each lifting plate has a vertically inserted post at its top, the inserted post corresponding to the mounting slot and the top of the inserted post located inside the mounting slot. The lifting plate is located between the rectangular rod and the bottom of the slot. The push plate is triangular, and the number of push plates is the same as that of the lifting plate. Each push plate is located in a slot and cooperates with the lifting plate. The rectangular rod has a circular groove on the side near the lifting plate, and a sliding column is horizontally slidably connected in the circular groove. One end of the sliding column extends to the outside of the circular groove and is fixedly connected to the push plate. A compression spring is provided between the push plate and the rectangular rod. The compression spring is in its natural length in the initial state. The second power source is located on the side of the fixed cylinder away from the turntable, and is used to push the push plate closer to or away from the turntable.

[0012] A compression spring three is disposed between each gear and the retaining ring. When the push plate approaches or moves away from the turntable, the positioning post moves along the rectangular rod via the compression spring three.

[0013] Preferably, the driving mechanism includes a servo motor and a baffle. The baffle is disposed on the side of the fixed cylinder away from the annulus. The servo motor is disposed on the baffle, and the rotating shaft of the servo motor is connected to the turntable through a driving column. The push plate has a rectangular groove for the driving column to pass through. The driving column can slide axially in the rectangular groove and can drive the push plate to rotate synchronously.

[0014] Preferably, the second power source includes an electric cylinder and a push ring. The push ring is coaxially rotatably connected to the side of the push plate away from the positioning post. The electric cylinder is mounted on the baffle, and the piston rod of the electric cylinder is connected to the push ring.

[0015] Preferably, the top of the insertion post is provided with a hemispherical block, and the hemispherical block is located in the mounting groove.

[0016] Preferably, the mounting box near the punching machine is located on one side of the ring, and the mounting box near the chamfering machine is located at the bottom of the ring. The feeding mechanism includes a second side groove on the ring, which corresponds to the mounting box near the punching machine and is connected to one of the first side grooves. The outer wall of the ring is inclined downward at one end near the second side groove, and the inclined side wall of the first side groove is used to guide the round tube to roll toward the second side groove after the positioning post is withdrawn.

[0017] Preferably, a support frame is provided between the outer surface of the ring and the lower surface of the guide plate to support the guide plate.

[0018] The beneficial effects of this invention are as follows: 1. Process integration and automatic handling: The four stations (loading, punching, chamfering, and unloading) are distributed at 90° intervals on the transfer ring. By setting up a transfer ring with a side groove and a drive mechanism that drives the transfer ring to rotate intermittently, the automatic cyclic handling of round tubes between the four stations is realized, replacing manual picking and placing and transferring, and improving production efficiency.

[0019] 2. "Rotational Alignment" of the Positioning Mechanism: The positioning mechanism adopts a movable and rotatable positioning column, and is equipped with a pin, a triangular lifting plate, a triangular push plate and a compression spring. In conjunction with the gear ring structure, the punch on the round tube is automatically rotated to the upward position during the rotation of the transfer ring, which facilitates the chamfering process of the chamfering machine.

[0020] 3. The self-locking and self-unlocking mechanism of the contact mechanism: The contact mechanism adopts a mounting box, a slider, a compression spring, and a trapezoidal plate, and a guide roller is set on the trapezoidal plate. During processing, the elastic force of the compression spring presses the round tube against the arc-shaped wall of the side groove, which improves the processing stability. When the transfer ring rotates, the inclined side wall of the side groove and the inclined surface of the trapezoidal plate cooperate to automatically push the trapezoidal plate open, thereby unlocking. No additional power source is required, and the structure is simple.

[0021] 4. Staggered punching and chamfering machines: The punching machine is located at a high position, and the chamfering machine is located at a low position, so that the feeding and unloading of the two stations, punching and chamfering, can be completed simultaneously in one horizontal movement of the slide, which improves processing efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram showing the location distribution of the punching machine and the chamfering machine; Figure 3 This is a schematic diagram illustrating the structure of the push ring according to an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the structure of the receiving plate according to an embodiment of the present invention; Figure 5 This is a schematic diagram showing the positional distribution of the four side slots. Figure 6 for Figure 5 Enlarged structural diagram of section A in the middle; Figure 7 This is a schematic diagram illustrating the structure of the drive column according to an embodiment of the present invention; Figure 8 for Figure 7 Enlarged structural diagram of section B in the middle; Figure 9 for Figure 7 Enlarged schematic diagram of the structure of section C.

[0024] Explanation of reference numerals in the attached figures: In the diagram: 1. Workbench; 2. Base; 21. Punching machine; 211. Lower clamping plate; 212. Upper clamping plate; 213. First fixed frame; 214. Pushing electric cylinder; 215. Arc groove; 216. Vertical plate; 217. Center column one; 219. Placement groove; 220. Punch; 222. Punching electric cylinder; 3. Chamfering machine; 31. Lower die; 32. Extrusion die; 33. Second fixed frame; 34. Chamfering electric cylinder; 37. Center column two; 4. Slide plate; 5. Power source; 6. Ring; 61. Opening groove; 7. Turntable; 71. Connecting groove; 8. Transfer ring; 81. Side groove one; 91. Conical funnel; 92. Receiving plate; 93. Connecting plate; 101. Mounting box; 102. Slider; 103. Compression spring one; 10 4. Trapezoidal plate; 105. Guide roller; 111. Fixing ring; 112. Fixing cylinder; 113. Sliding ring; 1131. Gear ring; 114. Push plate; 1141. Rectangular groove; 115. Positioning column; 1151. Mounting groove; 1152. Lifting plate; 1153. Compression spring II; 1154. Insert column; 1155. Hemispherical block; 1156. Gear; 1157. Retaining ring; 1158. Push plate; 1159. Slot; 116. Electric cylinder; 1161. Pushing ring; 117. Compression spring III; 118. Rectangular rod; 1181. Circular groove; 1182. Sliding column; 121. Servo motor; 122. Baffle; 123. Drive column; 131. Side groove II; 132. Guide plate; 133. Support frame. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances. Example 1

[0027] A punching and chamfering machine for shock absorber round tubes, such as Figures 1 to 5As shown, the machine includes a workbench 1, on which a punching machine 21 and a chamfering machine 3 are arranged side by side. A base 2 is provided on the workbench 1, and the punching machine 21 is located at the top of the base 2, so that the punching machine 21 and the chamfering machine 3 are staggered vertically while being arranged side by side, with the punching machine 21 located at the higher position and the chamfering machine 3 located at the lower position. A slide plate 4 is horizontally slidably connected to the workbench 1. The workbench 1 is equipped with a power source 5 (such as a cylinder or lead screw motor) for driving the slide plate 4 to move horizontally. A ring 6 is fixed at the top of the slide plate 4. A turntable 7 is rotatably connected inside the ring 6. A transfer ring 8 is coaxially fixed on the side of the turntable 7 facing the punching machine 21 and the chamfering machine 3. Four side grooves 81 are evenly opened along the circumference on the arc-shaped wall of the transfer ring 8. A drive mechanism is provided on the ring 6 to drive the transfer ring 8 to rotate intermittently. A storage mechanism is provided at the top of the ring 6 for storing the round tube to be processed. An opening groove 61 is provided on the ring 6 to communicate with the storage mechanism. The opening groove 61 is correspondingly connected to the side groove 81 located at the top of the transfer ring 8, so that a round tube in the storage mechanism can fall into the side groove 81 by gravity. The ring 6 is equipped with an abutting mechanism. When the side groove 81 rotates to correspond with the punching machine 21 or the chamfering machine 3, the abutting mechanism presses the round tube against the groove wall of the side groove 81. The ring 6 is also equipped with a positioning mechanism, which is used to extend into the round tube in the side groove 81 and make the hole on the round tube face upward after the transfer ring 8 rotates. The ring 6 is also equipped with a feeding mechanism, which is used to remove the round tube that has been punched and chamfered from the side groove 81.

[0028] like Figure 4 and Figure 5 As shown, the storage mechanism includes a conical funnel 91, the bottom end of which is connected to the opening slot 61. An arc-shaped receiving plate 92 is horizontally provided on one side of the conical funnel 91 through the connecting plate 93. The receiving plate 92 is located on the side of the transfer ring 8 away from the turntable 7 and corresponds to the position of the side slot 81 corresponding to the opening slot 61. When the round tube falls from the opening slot 61 into the side slot 81, one end of the round tube falls into the side slot 81, and the other end rests on the receiving plate 92 to prevent the round tube from tilting and falling.

[0029] like Figures 1 to 5 As shown, the position of the side groove 81 directly below the opening groove 61 is the feeding station, the position of the side groove 81 corresponding to the punching machine 21 is the punching station, the position of the side groove 81 corresponding to the chamfering machine 3 is the chamfering station, and the position of the side groove 81 corresponding to the unloading mechanism is the unloading station.

[0030] The working process of this embodiment is as follows: During operation, the round tube automatically falls from the storage mechanism into the side groove 81 located at the loading station. Then, the transfer ring 8 rotates intermittently by 90° under the drive mechanism, so that the round tube passes through the punching station corresponding to the punching machine 21, the chamfering station corresponding to the chamfering machine 3, and the unloading station corresponding to the unloading mechanism in sequence. At the punching station, the abutting mechanism presses the round tube tightly, and the slide plate 4 moves horizontally to insert the round tube into the punching machine 21 to complete the punching. After that, the slide plate 4 retracts, and the positioning mechanism extends into the round tube and keeps the hole on the round tube facing upward after the transfer ring 8 rotates. When the round tube turns to the chamfering station, the abutting mechanism presses it tightly again, and the slide plate 4 moves horizontally to insert the round tube into the chamfering machine 3 to complete the chamfering. After chamfering, the round tube turns to the unloading station, and the unloading mechanism takes it out from the side groove 81. In the whole process, the transfer of the round tube between the loading, punching, chamfering and unloading stations is completely completed automatically by the intermittent rotation of the transfer ring 8, without the need for manual handling, which improves production efficiency. Example 2

[0031] Based on Example 1, such as Figures 4 to 9 As shown, the positioning mechanism includes a fixed ring 111, a positioning post 115, a second power source, a third compression spring 117, a triangular lifting plate 1152 and a push plate 1158, and several rectangular rods 118. The fixed ring 111 is coaxially mounted on the outer wall of the ring 6. A fixed cylinder 112 is coaxially mounted on the outer wall of the fixed ring 111. A sliding ring 113 is horizontally slidably connected inside the fixed cylinder 112. The sliding ring 113 can only move horizontally within the fixed cylinder 112 and cannot rotate. The sliding ring 113 is coaxial with the fixed cylinder 112. A push plate 114 is coaxially rotatably connected to the side of the sliding ring 113 away from the ring 6. The rectangular rods 118 are evenly distributed along the circumference of the push plate 114 and are connected to the push plate 114. 14 Rotary connection, the number of positioning pins 115 is the same as the number of rectangular rods 118 and corresponds one-to-one. Each positioning pin 115 is horizontally set. One end of each positioning pin 115 is provided with a slot 1159 for the corresponding rectangular rod 118 to be horizontally inserted. The rectangular rod 118 can slide axially in the slot 1159. The turntable 7 is provided with several connecting slots 71. Each connecting slot 71 corresponds one-to-one with each side slot 81. The end of each positioning pin 115 away from the rectangular rod 118 passes through the corresponding connecting slot 71 and can extend into or out of the corresponding side slot 81. There are four positioning pins 115. Each positioning pin 115 is provided with a retaining ring 1157 at the end away from the connecting slot 71. Each positioning post 115 has a mounting groove 1151 at its top end that communicates with the slot 1159. A lifting plate 1152 is vertically slidably connected between the opposite side walls of each slot 1159. Each lifting plate 1152 has a vertically positioned insertion post 1154 at its top end. The insertion post 1154 corresponds to the mounting groove 1151, and its top end is located within the mounting groove 1151. The lifting plate 1152 is located between the rectangular rod 118 and the bottom of the slot 1159. The number of push plates 1158 and lifting plates 1152 is equal. The push plates 1158 are located in the slots 1159 and cooperate with the lifting plate 1152. The rectangular rod 118 has a circular groove 1181 on the side near the lifting plate 1152. A sliding column 1182 is horizontally slidably connected in the circular groove 1181. One end of the sliding column 1182 extends to the outside of the circular groove 1181 and is fixedly connected to the push plate 1158. A compression spring 1153 is provided between the push plate 1158 and the rectangular rod 118. The compression spring 1153 is at its natural length in the initial state. The second power source is located on the side of the fixed cylinder 112 away from the turntable 7, and is used to push the push plate 114 closer to or away from the turntable 7, such as... Figure 3 The second power source includes an electric cylinder 116 and a push ring 1161. The push ring 1161 is coaxially rotatably connected to the side of the push plate 114 away from the positioning post 115. The electric cylinder 116 is fixed on the baffle 122 (the baffle 122 is fixedly connected to the end of the fixed cylinder 112). The piston rod of the electric cylinder 116 is connected to the push ring 1161. When the electric cylinder 116 extends, the push plate 114 drives the positioning post 115 to move towards the turntable 7, so that the positioning post 115 is inserted into the round tube in the side groove 81. When the electric cylinder 116 retracts, the positioning post 115 exits the round tube. The electric cylinder 116 will not affect the rotation of the push plate 114. A gear ring 1131 is coaxially mounted on the inner wall of the sliding ring 113. Each rectangular rod 118 is provided with a gear 1156 that meshes with the gear ring 1131. The gear 1156 is located on the inner side of the gear ring 1131 (e.g., Figure 7 and Figure 9 When the transfer ring 8, turntable 7, push plate 114 and positioning post 115 rotate synchronously as a whole, since the sliding ring 113 does not rotate (it can only slide axially), the gear ring 1131 is fixed on the sliding ring 113. The relative movement of the gear 1156 and the gear ring 1131 forces the positioning post 115 to rotate around its own axis. This rotational movement drives the round tube to rotate through the insert post 1154. By reasonably designing the gear ratio between the gear ring 1131 and the gear 1156, after the transfer ring 8 rotates 90°, the round tube just rotates to the position where the punched hole is vertically facing upward. The compression spring 117 is set between each gear 1156 and the retaining ring 1157. When the push plate 114 approaches or moves away from the turntable 7, the positioning post 115 moves with the rectangular rod 118 through the compression spring 117.

[0032] The working process of the above structure is as follows: Figures 4 to 9 As shown, when the power source 2 drives the push plate 114 to move towards the turntable 7, the rectangular rod 118 moves forward with the push plate 114. The rectangular rod 118 pushes the retaining ring 1157 through the compression spring 3 117, which in turn pushes the positioning pin 115 to move into the round tube in the side groove 81. At this time, the retaining ring 1157 and the turntable 7 approach each other. When one side of the retaining ring 1157 contacts the turntable 7, the positioning pin 115 stops moving forward. At this time, the rectangular rod 118 continues to move forward and compresses the compression spring 3 117. At the same time, the push plate 1158 on the rectangular rod 118 pushes the lifting plate 1152 to rise through the inclined surface, so that the insertion pin 1154 extends out of the mounting groove 1151. If the round tube has been punched and the insertion pin 1154 is aligned with the hole, the insertion pin 1154 is inserted into the hole to achieve circumferential positioning. If the round tube has not been punched, the insertion pin 1154 is pressed by the inner wall of the round tube and cannot extend. When the transfer ring 8, turntable 7, push plate 114, and rectangular rod 118 rotate synchronously as a whole under the drive mechanism, since the rectangular rod 118 and the slot 1159 of the positioning post 115 are rectangularly fitted (i.e., the cross-section of the rectangular rod 118 is non-circular, and the cross-section of the slot 1159 is adapted to it), the rotational motion of the rectangular rod 118 is directly transmitted to the positioning post 115 through the slot 1159, causing the positioning post 115 to rotate synchronously with the rectangular rod 118. At this time, the insertion post 1154 has been inserted into the hole of the round tube (for punched tubes...). The round tube with the hole rotates together with the positioning post 115. During the rotation, the sliding ring 113 remains stationary, the gear ring 1131 is fixed, and the relative movement of the gear 1156 and the gear ring 1131 forces the rectangular rod 118 to rotate. This rotation is transmitted to the positioning post 115 and the round tube through the cooperation between the rectangular rod 118 and the slot 1159. By reasonably designing the tooth ratio between the gear ring 1131 and the gear 1156, when the transfer ring 8 rotates 90°, the round tube rotates to the position where the punched hole is vertically facing upwards. When the second power source drives the push plate 114 to retract, the rectangular rod 118 retracts, the compression spring 117 gradually returns to its natural length, and at the same time applies a backward thrust to the retaining ring 1157, causing the positioning pin 115 to follow the rectangular rod 118 to retract, thereby exiting the round tube.

[0033] like Figure 3 and Figure 7As shown, the drive mechanism includes a servo motor 121 and a baffle 122. The baffle 122 is located on the side of the fixed cylinder 112 away from the ring 6. The servo motor 121 is mounted on the baffle 122, and the shaft of the servo motor 121 is connected to the turntable 7 via a drive column 123. A rectangular slot 1141 is provided on the push plate 114 for the drive column 123 to pass through. The drive column 123 can slide axially within the rectangular slot 1141 and can drive the push plate 114 to rotate synchronously. Thus, when the servo motor 121 drives the turntable 7 to rotate, the push plate 114 and the transfer ring 8 also rotate accordingly. The axial movement of the push plate 114 (controlled by the second power source) does not interfere with the rotational motion. Figure 8 The top of the insertion post 1154 is provided with a hemispherical block 1155, and the hemispherical block 1155 is located in the mounting groove 1151. The hemispherical block 1155 facilitates the vertical insertion of the insertion post 1154 into the hole of the round tube when it rises. The servo motor 121 is a self-locking servo motor 121. The turntable 7 will self-lock after rotating 90 degrees each time, and the self-lock will be released when it starts rotating again. This reduces the occurrence of rotation between the turntable 7 and the transfer ring 8 during the processing of the round tube. The self-locking servo motor 121 is an existing mechanism, and it will not be described in detail here.

[0034] In this embodiment, the rectangular fit between the rectangular rod 118 and the slot 1159 not only realizes axial sliding (for the extension and retraction of the positioning post 115), but also realizes synchronous transmission of circumferential rotation (for the orientation of the round tube). This structure can simultaneously complete the transmission of thrust and torque without additional connecting parts, simplifying the structure and improving the reliability of transmission. Example 3

[0035] Based on Example 2, such as Figures 4 to 6 As shown, the groove wall of the side groove 81 near the center of the transfer ring 8 is an arc-shaped surface adapted to the outer wall of the circular tube. The opposite side walls of the side groove 81 are inclined surfaces, and the distance between the two side walls gradually increases from the bottom of the groove to the opening of the groove. The abutting mechanism includes two mounting boxes 101 set on the outer wall of the circular ring 6. The two mounting boxes 101 are respectively set near the punching machine 21 and the chamfering machine 3. The mounting box 101 near the punching machine 21 is located on one side of the circular ring 6 (e.g., the left side), and the mounting box 101 near the chamfering machine 3 is located at the bottom of the circular ring 6 (e.g., the bottom side). Figure 1 Each mounting box 101 has a slider 102 slidably connected inside. A compression spring 103 is provided between the slider 102 and the bottom of the mounting box 101. A trapezoidal plate 104 is provided on the side of the slider 102 away from the compression spring 103. Two guide rollers 105 are rotatably connected on the side of the trapezoidal plate 104 facing the center of the transfer ring 8. The two guide rollers 105 are set along the length direction of the side groove 81 (i.e., the axial direction of the circular tube). The opposite two inclined surfaces of the trapezoidal plate 104 cooperate with the inclined groove wall of the side groove 81.

[0036] like Figures 4 to 6 As shown, the opening of the mounting box 101 faces the ring 6. When there is no round tube in the side groove 81, the slider 102 will move to the opening of the mounting box 101. This is the farthest distance that the slider 102 moves towards the center of the ring 6. The slider 102 will never enter the side groove 81. When the transfer ring 8 rotates, the inclined sidewall of the side groove 81 contacts the inclined surface of the trapezoidal plate 104, forcing the trapezoidal plate 104 to overcome the elastic force of the compression spring 103 and move away from the center of the transfer ring 8. When the side groove 81 and the trapezoidal plate 104 are completely misaligned, the two guide rollers 105 on the trapezoidal plate 104 abut against the arcuate wall of the transfer ring 8, and as the transfer ring 8 rotates, the guide rollers 105 roll on it, reducing the frictional resistance between the trapezoidal plate 104 and the arcuate wall of the transfer ring 8. When a certain side groove 81 corresponds to the punching machine 21 or the chamfering machine 3, the side groove 81 is directly facing the corresponding mounting box 101. The compression spring 103 pushes the slider 102 and the trapezoidal plate 104 to move towards the center of the ring 6, so that the two guide rollers 105 on the trapezoidal plate 104 abut against the outer wall of the round tube in the side groove 81, and presses the round tube against the arc wall of the side groove 81, thereby achieving the fixation before processing, and the removal of the round tube from the punching machine and the chamfering machine 3 when the slide plate 4 retracts after processing. The diameter of the positioning post 115 is smaller than the inner diameter of the round tube.

[0037] like Figure 4 and Figure 5 As shown, the unloading mechanism includes a second side groove 131 set on the ring 6. The second side groove 131 corresponds to the mounting box 101 near the punching machine 21, and the second side groove 131 is connected to one of the side grooves 81. The outer wall of the ring 6 is inclined downward at one end near the second side groove 131 and a guide plate 132 is provided. The inclined side wall of the first side groove 81 at the unloading station is used to guide the round tube to roll towards the second side groove 131 after the positioning post 115 is withdrawn. A collection box (not shown in the figure) can be placed on the bottom surface of one side of the worktable 1 to receive the processed round tube rolling off the guide plate 132. A support frame 133 is provided between the outer surface of the ring 6 and the lower surface of the guide plate 132 to support the guide plate 132.

[0038] The overall working process of this device is as follows: Step 1: Initial state and first piece loading. Initially, all side slots 81 are empty. The front ends of each positioning post 115 are located inside side slot 81, blocking the round tube from falling. Power source 2 (electric cylinder 116) drives push plate 114 to move backward, causing each positioning post 115 to exit side slot 81 and retract into connecting slot 71. At this time, the hemispherical block 1155 on the positioning post 115 is located in mounting slot 1151. The first round tube in the storage mechanism falls into side slot 81 located at loading station by gravity through opening slot 61. One end of the round tube rests on receiving plate 92. Then, power source 2 drives push plate 114 forward, and the positioning post 115 corresponding to the loading station is inserted into the round tube. The hemispherical block 1155 abuts against the inner wall of the round tube (the round tube has not yet been punched).

[0039] Step 2: First rotation (loading station → punching station), the drive mechanism (servo motor 121) drives the transfer ring 8 to rotate 90°. During the rotation, the inclined side wall of the side groove 81 contacts the inclined surface of the trapezoidal plate 104 at the punching station, forcing the trapezoidal plate 104 to overcome the elastic force of the compression spring 103 and move away from the center of the transfer ring 8. When the trapezoidal plate 104 is completely misaligned with the side groove 81, the guide roller 105 on the trapezoidal plate 104 rolls along the arc-shaped outer wall of the transfer ring 8. After the rotation is in place, the side groove 81 where the round tube is located is directly opposite the trapezoidal plate 104 at the punching station. The compression spring 103 pushes the trapezoidal plate 104 to reset, and the guide roller 105 enters the side groove 81 and presses the round tube against the arc-shaped wall of the side groove 81.

[0040] Step 3: Positioning pin 115 retracts and the second round tube is fed. Power source 2 drives push plate 114 to retreat. All positioning pins 115 retract from side groove 81. The round tube at the punching station is held in place by guide roller 105 and will not fall. The empty side groove 81 at the feeding station is unobstructed. The second round tube falls from the storage mechanism into the side groove 81. Other empty side grooves 81 do not move.

[0041] Step 4: Punching process. The slide plate 4 moves horizontally under the drive of the power source 5, so that one end of the first round tube (located at the punching station) enters the punching machine 21. The punching machine 21 completes the punching. At this time, the hole on the round tube is facing upward. The slide plate 4 moves backward and the round tube is separated from the punching machine 21. Since the guide roller 105 still holds the round tube tightly, the round tube will not be carried out by the punching machine 21.

[0042] Step 5: The positioning pin 115 is inserted again and finds the hole. The power source 2 drives the push plate 114 forward. Each positioning pin 115 is inserted into the round tube in the corresponding side groove 81. For the first round tube that has been punched, when the retaining ring 1157 on the positioning pin 115 abuts against the turntable 7, the positioning pin 115 stops moving forward. At this time, the mounting groove 1151 on the positioning pin 115 is just aligned with the hole on the round tube. At this time, as the push plate 114 continues to move forward, the compression spring 2 1153 pushes the push plate 1158. The push plate 1158 pushes the lifting plate 1152 up through the inclined plane. The top of the insertion pin 1154 extends out of the mounting groove 1151. The hemispherical block 1155 is inserted into the hole and protrudes from the outer wall of the round tube to achieve circumferential positioning. For the second round tube that has just been loaded (not punched), the hemispherical block 1155 abuts against the inner wall of the round tube, and the insertion pin 1154 cannot extend.

[0043] Step 6: Second rotation (punching station → chamfering station, loading station → punching station). The drive mechanism drives the transfer ring 8 to rotate 90° again. During the rotation, the trapezoidal plate 104 is pushed open by the side wall of the side groove 81. At the same time, the sliding ring 113 remains stationary, the gear ring 1131 is fixed, and the relative movement of the gear 1156 and the gear ring 1131 forces the rectangular rod 118 to rotate. The rectangular rod 118 drives the positioning post 115 to rotate synchronously through its rectangular engagement with the slot 1159. The first round tube that has been punched rotates with the positioning post 115. After the transfer ring 8 rotates 90°, the first round tube rotates to the chamfering station, and its hole is facing upward. The second round tube rotates to the punching station. The trapezoidal plates 104 of the chamfering station and the loading station are reset, and the guide rollers 105 press against their respective round tubes.

[0044] Step 7: Positioning pin 115 retracts, chamfering and punching are performed in parallel, the third round tube is loaded, power source two drives push plate 114 to retract, rectangular rod 118 retracts, compression spring three 117 gradually returns to its natural length. During this process, push plate 1158 retracts with rectangular rod 118 through compression spring two 1153 and separates from lifting plate 1152. Under the influence of gravity, lifting plate 1152, insert pin 1154 and hemispherical block 1155 will retract downwards until hemispherical block 1155 is completely located in mounting groove 1151. When the compression spring 117 returns to its natural length, the positioning post 115 will follow the rectangular rod 118 backward through the compression spring 117 until the positioning post 115 successfully exits the round tube. At this time, the first round tube at the chamfering station loses the positioning post 115 (is pressed against by the guide roller 105), the second round tube at the punching station loses the positioning post 115 (is pressed against by the guide roller 105), the empty side groove 81 at the loading station loses its obstruction, and the third round tube falls into the side groove 81. Then, the slide plate 4 moves horizontally, the first round tube enters the chamfering machine 3 for chamfering, and the second round tube enters the punching machine 21 for punching. The chamfering and punching are carried out in parallel and after completion, the slide plate 4 moves backward, and the two round tubes are separated from the chamfering machine 3 and the punching machine 21 respectively.

[0045] Step 8: Insert positioning pins 115 (to prepare for the next rotation). Power source 2 drives the push plate 114 forward, and each positioning pin 115 is inserted into the corresponding round tube. For the first round tube that has been chamfered (located at the chamfering station), when the mounting groove 1151 is aligned with the hole, the insertion pin 1154 rises and the hemispherical block 1155 protrudes out of the hole. For the second round tube that has been punched (located at the punching station), the insertion pin 1154 rises and the hemispherical block 1155 protrudes. For the third round tube that has been newly loaded (located at the loading station), the hemispherical block 1155 is in contact with the inner wall and does not rise.

[0046] Step 9: Third rotation (beveling station → unloading station, punching station → beveling station, loading station → punching station), the drive mechanism drives the transfer ring 8 to rotate 90° again, so that the first round tube of the beveling station rotates to the unloading station, the second round tube of the punching station rotates to the beveling station, and the third round tube of the loading station rotates to the punching station. During the rotation, through the cooperation of the gear ring 1131, gear 1156, slot 1159, rectangular rod 118, and insert 1154, after the rotation is in place, the upper hole of the second round tube (which has been punched) faces upward, and the upper hole of the first round tube (which has been beveling) faces upward. After the rotation is completed, an empty side groove 81 appears at the loading station, the trapezoidal plate 104 is reset, and the guide roller 105 presses against each round tube.

[0047] Step 10: Unloading and loading of the fourth round tube. Power source two drives the push plate 114 to retreat, all positioning pins 115 exit the side groove 1 81, the first round tube at the unloading station loses support, and under the action of gravity, it rolls along the inclined side wall of side groove 1 81 into side groove 2 131, and then slides down into the collection box through the guide plate 132. The empty side groove 1 81 at the loading station loses its obstruction, and the fourth round tube falls into the side groove 1 81.

[0048] Step 11: Chamfering and punching are performed in parallel. The slide plate 4 moves horizontally, allowing the second round tube to enter the chamfering machine 3 for chamfering and the third round tube to enter the punching machine 21 for punching. After chamfering and punching are performed in parallel and completed, the slide plate 4 moves backward, and the two round tubes are separated from the chamfering machine 3 and the punching machine 21 respectively.

[0049] Step 12: Positioning pins 115 are inserted to prepare for the next cycle. Power source 2 drives push plate 114 forward. Each positioning pin 115 is inserted into the round tube in the corresponding side groove 81. The second round tube (located at the chamfering station) with chamfered insert pin 1154 is inserted into the hole. The third round tube (located at the punching station) with punched insert pin 1154 is inserted into the hole. The fourth round tube (not punched) at the loading station has a hemispherical block 1155 that abuts against the inner wall. At this point, except for the side groove 81 at the unloading station (corresponding to side groove 131) which is empty, the other three side grooves 81 all have round tubes. The system enters the cycle.

[0050] Cyclic Phase: Each time the slide plate 4 moves, before the round tube enters the chamfering machine 3 and the punching machine 21 respectively, the push plate 114 is driven backward by the second power source, causing the positioning pin 115 to exit the side groove 81 (making way for processing and loading, and at the same time causing the round tube at the unloading station to lose support for unloading). After processing, the slide plate 4 moves backward, and the push plate 114 is driven forward by the second power source, causing the positioning pin 115 to insert into the round tube. After the positioning pin 115 is inserted, for the round tube that has been punched and chamfered, the mounting groove 1151 on the positioning pin 115 and... When the holes on the round tube are aligned, the insert post 1154 rises and the hemispherical block 1155 protrudes out of the hole. For round tubes without punching holes, the hemispherical block 1155 abuts against the inner wall of the round tube, and the insert post 1154 cannot extend. Then the transfer ring 8 rotates 90° to transfer the station. Next, the positioning post 115 retracts and the unloading station drops the material. At the same time, the loading station receives the new round tube. The slide plate 4 moves horizontally and performs punching and chamfering in parallel. After processing, the slide plate 4 retracts, and the positioning post 115 moves forward to insert and find the hole. This cycle is repeated to achieve continuous automatic processing. Throughout the process, the horizontal movement of the slide plate 4 and the push plate 114, as well as the rotation of the transfer ring 8, enable continuous processing of automatic feeding, repositioning, and unloading without manual intervention, thus improving production efficiency.

[0051] like Figure 1 and Figure 2As shown, the punching machine 21 includes a lower clamping plate 211, an upper clamping plate 212, and an inverted U-shaped first fixing frame 213. Both the first fixing frame 213 and the lower clamping plate 211 are mounted on the base 2, with the lower clamping plate 211 located inside the first fixing frame 213 and the upper clamping plate 212 located above the lower clamping plate 211. The first fixing frame 213 is equipped with a pusher cylinder 214 for pushing the upper clamping plate 212 downwards. Both the lower clamping plate 211 and the upper clamping plate 212 have arc-shaped grooves 215 adapted to the round tube at their closest points. A vertical plate 216 is provided on one side of the lower clamping plate 211, and a central post 217 for inserting into the round tube is provided on the vertical plate 216. The movement of the sliding plate 4 brings the round tube closer to the punching hole. When the machine is in operation, the round tube is horizontally inserted into the arc-shaped groove 215 on the lower clamping plate 211 and contacts one side of the vertical plate 216. At this time, the central column 217 is inserted into the round tube. The interior of the central column 217 is provided with an embedding groove (not shown in the figure). The top of the central column 217 is provided with a placement groove 219 that communicates with the embedding groove. A punch 220 is placed in the placement groove 219. A wedge mechanism connected to the punch 220 is provided in the embedding groove (not shown in the figure, and the wedge mechanism is an existing structure, so it will not be described in detail here). The vertical plate 216 is provided with a punching electric cylinder 222 that cooperates with the wedge mechanism. The punching electric cylinder 222 is used to drive the punch 220 to move vertically through the wedge mechanism, thereby punching the top of the outer wall of the round tube.

[0052] The chamfering machine 3 includes a chamfering die 32, a U-shaped lower die 31, and an inverted U-shaped second fixed frame 33. The second fixed frame 33 and the lower die 31 are both set on the worktable 1. The lower die 31 and the chamfering die 32 are located inside the second fixed frame 33, and the chamfering die 32 is located above the lower die 31. The second fixed frame 33 is equipped with a chamfering electric cylinder 34 for pushing the chamfering die 32 downward. The inner wall of the lower die 31 is equipped with a central column 37 for inserting into a round tube. When the slide plate 4 moves so that the round tube is close to the chamfering machine 3, one end of the round tube enters the lower die 31 horizontally and contacts the inner wall of the lower die 31. At this time, the central column 37 is inserted into the round tube, and the upward-facing hole of the round tube corresponds to the chamfering die 32. The chamfering operation can be performed on the upward-facing hole of the round tube by pushing the chamfering die 32 downward through the piston rod of the chamfering electric cylinder 34.

[0053] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A punching and chamfering machine for shock absorber round tubes, characterized in that, include: A workbench (1) is provided with a punching machine (21) and a chamfering machine (3) arranged side by side. A base (2) is provided on the workbench (1). The punching machine (21) is located at the top of the base (2), so that the punching machine (21) and the chamfering machine (3) are staggered vertically. The slide plate (4) is horizontally slidably connected to the workbench (1), and the workbench (1) is provided with a power source (5) for driving the slide plate (4) to move horizontally. A circular ring (6) is set at the top of the slide plate (4). A turntable (7) is rotatably connected inside the circular ring (6). A transfer ring (8) is coaxially provided on the side of the turntable (7) facing the punching machine (21) and the chamfering machine (3). Four side grooves (81) are evenly opened along the circumference on the arc-shaped wall of the transfer ring (8). A drive mechanism is provided on the ring (6) to drive the transfer ring (8) to rotate intermittently; The storage mechanism is set at the top of the ring (6) for storing the round tube. The top of the ring (6) is provided with an opening groove (61) for connecting the storage mechanism with the side groove (81) located above the transfer ring (8). The positioning mechanism is set on the ring (6) and is used to extend into the round tube in the side groove (81) and make the hole on the round tube face upward after the transfer ring (8) rotates; The abutting mechanism is set on the ring (6). When the side groove (81) rotates to correspond with the punching machine (21) or the chamfering machine (3), the abutting mechanism presses the round tube against the groove wall of the side groove (81). The feeding mechanism is set on the ring (6). After the round tube is chamfered, the feeding mechanism is used to take the round tube out from the side groove (81).

2. The punching and chamfering machine for shock absorber round tubes as described in claim 1, characterized in that, The storage mechanism includes a conical funnel (91), the bottom end of which is connected to the opening groove (61). One side of the conical funnel (91) is provided with an arc-shaped receiving plate (92) via a connecting plate (93). The receiving plate (92) is located on the side of the transfer ring (8) away from the turntable (7) and corresponds to the side groove (81) connected to the opening groove (61), and is used to support one end of the round tube falling from the opening groove (61) into the side groove (81).

3. The punching and chamfering machine for shock absorber round tubes as described in claim 1, characterized in that, The wall of the side groove (81) near the center of the transfer ring (8) is an arc-shaped surface adapted to the outer wall of the circular tube. The opposite two side walls of the side groove (81) are inclined surfaces, and the distance between the two side walls gradually increases from the bottom of the groove to the opening of the groove.

4. The punching and chamfering machine for shock absorber round tubes as described in claim 3, characterized in that, The abutting mechanism includes two mounting boxes (101) disposed on the outer wall of the ring (6). The two mounting boxes (101) are respectively disposed close to the punching machine (21) and the chamfering machine (3). A slider (102) is slidably connected inside the mounting box (101). A compression spring (103) is provided between the slider (102) and the bottom of the mounting box (101). A trapezoidal shape is provided on the side of the slider (102) away from the compression spring (103). Plate (104), the trapezoidal plate (104) is rotatably connected to two guide rollers (105) on one side facing the center of the transfer ring (8). The two guide rollers (105) are arranged along the length direction of the side groove (81). When the side groove (81) rotates to correspond with the punching machine (21) or the chamfering machine (3), the two guide rollers (105) on the trapezoidal plate (104) abut against the outer wall of the round tube and press the round tube against the arc wall of the side groove (81). When the transfer ring (8) rotates, the inclined sidewall of the side groove (81) contacts the inclined surface of the trapezoidal plate (104) and forces the trapezoidal plate (104) to overcome the elastic force of the compression spring (103) and move away from the center of the transfer ring (8).

5. The punching and chamfering machine for shock absorber round tubes as described in claim 3, characterized in that, The positioning mechanism includes: A fixed ring (111) is coaxially disposed on the outer wall of the circular ring (6). A fixed cylinder (112) is coaxially disposed on the outer wall of the fixed ring (111). A sliding ring (113) is horizontally slidably connected inside the fixed cylinder (112). The sliding ring (113) is coaxial with the fixed cylinder (112). A push plate (114) is coaxially rotatably connected to the side of the sliding ring (113) away from the circular ring (6). Several rectangular rods (118) are evenly distributed along the circumference of the push plate (114) and rotatably connected to the push plate (114). A gear ring (1131) is coaxially provided on the inner wall of the sliding ring (113). Each rectangular rod (118) is provided with a gear (1156) that meshes with the gear ring (1131). The gear (1156) is located inside the gear ring (1131). Positioning posts (115), the number of which is the same as the number of rectangular rods (118) and corresponds one-to-one. Each positioning post (115) is horizontally arranged, and one end of each positioning post (115) is provided with a slot (1159) for horizontal insertion of the corresponding rectangular rod (118). The rectangular rod (118) can slide axially in the slot (1159). The top of each positioning post (115) is provided with an installation groove (1151) communicating with the slot (1159). The turntable (7) is provided with several connecting grooves (71), each connecting groove (71) corresponding one-to-one with each side groove (81). The end of each positioning post (115) away from the rectangular rod (118) passes through the corresponding connecting groove (71) and can extend into or out of the corresponding side groove (81). The end of each positioning post (115) away from the connecting groove (71) is provided with a retaining ring (1157). A triangular lifting plate (1152) is vertically slidably connected between the opposite side walls of each slot (1159). Each lifting plate (1152) has a vertically inserted post (1154) at its top. The inserted post (1154) corresponds to the mounting slot (1151) and the top of the inserted post (1154) is located in the mounting slot (1151). The lifting plate (1152) is located between the rectangular rod (118) and the bottom of the slot (1159). A triangular push plate (1158) is provided, the number of which is the same as that of the lifting plate (1152). Each push plate (1158) is located in a slot (1159) and cooperates with the lifting plate (1152). A circular groove (1181) is provided on the side of the rectangular rod (1188) near the lifting plate (1152). A sliding column (1182) is horizontally slidably connected in the circular groove (1181). One end of the sliding column (1182) extends to the outside of the circular groove (1181) and is fixedly connected to the push plate (1158). A compression spring (1153) is provided between the push plate (1158) and the rectangular rod (118). The compression spring (1153) is at its natural length in the initial state. The second power source is located on the side of the fixed cylinder (112) away from the turntable (7) and is used to push the push plate (114) closer to or away from the turntable (7). Compression spring three (117) is disposed between each gear (1156) and retaining ring (1157). When the push plate (114) approaches or moves away from the turntable (7), the positioning post (115) moves with the rectangular rod (118) via the compression spring three (117).

6. The punching and chamfering machine for shock absorber round tubes as described in claim 5, characterized in that, The driving mechanism includes a servo motor (121) and a baffle (122). The baffle (122) is located on the side of the fixed cylinder (112) away from the ring (6). The servo motor (121) is located on the baffle (122), and the rotating shaft of the servo motor (121) is connected to the turntable (7) through a drive column (123). The push plate (114) has a rectangular groove (1141) through which the drive column (123) passes. The drive column (123) can slide axially in the rectangular groove (1141) and can drive the push plate (114) to rotate synchronously.

7. A punching and chamfering integrated machine for shock absorber round tubes as described in claim 6, characterized in that, The second power source includes an electric cylinder (116) and a push ring (1161). The push ring (1161) is coaxially rotatably connected to the side of the push plate (114) away from the positioning post (115). The electric cylinder (116) is mounted on the baffle (122), and the piston rod of the electric cylinder (116) is connected to the push ring (1161).

8. A punching and chamfering machine for shock absorber round tubes as described in claim 5, characterized in that, The top of the insert (1154) is provided with a hemispherical block (1155), and the hemispherical block (1155) is located in the mounting groove (1151).

9. A punching and chamfering integrated machine for shock absorber round tubes as described in claim 3, characterized in that, The mounting box (101) near the punching machine (21) is located on one side of the ring (6), and the mounting box (101) near the chamfering machine (3) is located at the bottom of the ring (6). The feeding mechanism includes a second side groove (131) on the ring (6). The second side groove (131) corresponds to the mounting box (101) near the punching machine (21) and is connected to one of the side grooves (81). The outer wall of the ring (6) near the second side groove (131) is provided with a guide plate (132) inclined downward. The inclined side wall of the first side groove (81) is used to guide the round tube to roll towards the second side groove (131) after the positioning post (115) is withdrawn.

10. A punching and chamfering integrated machine for shock absorber round tubes as described in claim 9, characterized in that, A support frame (133) is provided between the outer surface of the ring (6) and the lower surface of the guide plate (132) to support the guide plate (132).

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