A stamping device for processing ball valves with a self-lubricating structure

Abstract

This invention discloses a stamping device for ball valve processing with a self-lubricating structure, relating to the field of ball valve stamping. It includes a base and a stamping head, the stamping head being positioned above the base. A stamping port is located below the stamping head, providing downward punching space for the stamping head. A feeding disc is located inside the base, with evenly spaced loading slots. A workpiece locking mechanism is located on the outer side of each loading slot to lock the workpiece within. A drive shaft is fixed to the center of the feeding disc, and the drive shaft is rotatably connected to the base. This self-lubricating ball valve processing stamping device provides spray lubrication to the stamping head via nozzles on a connecting frame, while also providing partial cooling. The connecting frame rotates with the feeding disc, automatically lubricating the stamping head during product loading and switching, eliminating the need for manual operation and making it more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of ball valve stamping technology, specifically to a stamping device for processing ball valves with a self-lubricating structure. Background Technology

[0002] When processing ball valves, the related parts can be punched to form holes. In addition to punching, there are also some drilling methods. Compared with drilling, punching has fewer burrs and faster processing speed, and it is widely used in ball valve processing technology.

[0003] Prior art 1 (Chinese patent application number CN202420062892.7, published on August 9, 2024) discloses a low-noise stamping equipment for processing hard-seal ball valves, including a processing table. A processing station is provided on the top of the processing table. Support frames supporting the processing station are provided between the four corners of the bottom of the processing station and the processing table. A positioning component is provided on the processing station to position and clamp a valve body that is open at the top and bottom and arranged in a cylindrical shape. A support platform is provided on one side of the processing table. A lifting block is provided on the support platform via a lifting component. A mounting plate is provided at the bottom of the lifting block via a connecting rod. A stamping module is provided at the bottom of the mounting plate to stamp the valve body. This low-noise stamping equipment for processing hard-seal ball valves achieves a certain degree of sound insulation and noise reduction through the cooperation of a protective cover, a sound insulation plate, and sound insulation cotton in the sound insulation cavity, thereby allowing the entire equipment to operate smoothly. The process operates in a low-noise state. Prior art 2 (Chinese patent application number CN202320857814.1, published on September 12, 2023) describes a punching machine for the body of a fully welded ball valve, comprising a base. Multiple columns are fixedly mounted on the upper end of the base, and a top plate is fixedly mounted on the upper end of the columns. A hydraulic cylinder is fixedly mounted on the upper end of the top plate, and a punch is fixedly mounted on the telescopic end of the hydraulic cylinder. A fixed plate is fixedly mounted on the upper end of the base, and a translation plate is slidably connected to the upper end of the fixed plate. Positioning plates and support columns are fixedly mounted on opposite sides of the two translation plates. A translation mechanism for the translation plates to move in opposite directions is provided on the fixed plate. This application utilizes the cooperation of the support columns and positioning plates to support and fix the workpiece. Under stamping conditions, it ensures that the workpiece deformation is within acceptable limits, and the punching process completes the opening, reducing the presence of burrs.

[0004] During current stamping operations, the stamping head reaches high temperatures and generates significant friction due to repeated stamping. Currently, most stamping equipment with stamping head lubrication relies on manual lubrication, which is cumbersome and inconvenient. Furthermore, operating under the stamping head during product loading and unloading poses safety hazards and hinders continuous stamping operations. Summary of the Invention

[0005] The purpose of this invention is to provide a stamping device for ball valve processing with a self-lubricating structure, so as to solve the problems mentioned in the background art. In the current stamping device, the temperature of the stamping head is high when the stamping operation is repeated, resulting in relatively large friction. At present, most stamping equipment with stamping head lubrication adopts manual lubrication, which is cumbersome to operate and has low convenience. Moreover, there are certain safety hazards when operating under the stamping head during the stamping and loading of products.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stamping device for processing ball valves with a self-lubricating structure, comprising a base and a stamping head, wherein the stamping head is disposed above the base, and a stamping port is disposed below the stamping head, the stamping port being located above the base to provide downward punching space for the stamping head; a feeding plate is disposed inside the base, and feeding grooves are evenly distributed inside the feeding plate, and a workpiece locking mechanism is disposed outside the feeding grooves to lock the workpieces in the feeding grooves; a drive shaft is fixed in the middle of the feeding plate, the drive shaft is rotatably connected to the base, and a servo motor is connected to the end of the drive shaft to obtain rotational power; a connecting frame is disposed above the drive shaft, and the connecting frame is located below the stamping head, and a nozzle is disposed at the end of the connecting frame, the nozzle being offset from the feeding grooves; a lubrication control mechanism is disposed below the nozzle.

[0007] To further optimize this technical solution, a collection box is provided below the stamping port, and the collection box is located below the feeding trough, and the collection box and the base form a front-to-back sliding structure.

[0008] To further optimize this technical solution, the lubrication control mechanism includes a first connecting groove, a storage chamber, a piston, an automatic replenishment mechanism, and an automatic triggering mechanism;

[0009] The first connecting groove is located below the nozzle and connects the nozzle and the storage chamber;

[0010] A storage chamber is located below the first connecting channel;

[0011] The piston is positioned inside and between the storage chambers, forming a sliding structure.

[0012] An automatic replenishment mechanism is connected to the storage chamber to replenish the oil.

[0013] An automatic triggering mechanism controls the piston to move and squeeze out oil to lubricate the punch head.

[0014] To further optimize this technical solution, the automatic replenishment mechanism includes an oil storage chamber, a first check valve, a second connecting groove, and a second check valve;

[0015] The oil storage chamber is located in the middle of the connecting frame;

[0016] The first one-way valve is located inside the first connecting groove, and the conduction direction of the first one-way valve is from the first connecting groove to the nozzle.

[0017] The second connecting channel is located on the side of the storage chamber and connects to the storage chamber, and the top of the second connecting channel is connected to the bottom of the oil storage chamber.

[0018] The second check valve is located inside the second connecting groove, and the conduction direction of the second check valve is from the second connecting groove to the storage chamber.

[0019] To further optimize this technical solution, the automatic triggering mechanism includes a first spring, a guide block, a top block, a trigger rod, and an arc-shaped block;

[0020] The first spring, fixed below the piston, provides a downward restoring force to the piston;

[0021] The guide block is fixed below the piston;

[0022] The top block is located below the guide block, and the top of the top block has an inclined structure design, and the top block and the connecting frame form a horizontal sliding structure;

[0023] The trigger rod is fixed to the outer end of the top block and extends through the outer surface of the connecting frame;

[0024] An arc-shaped block is fixed above the base, and the trigger rod is squeezed by the arc-shaped block as it passes through it.

[0025] To further optimize this technical solution, the left end of the feeding tray is located on the outside of the base, and a support plate is provided below the feeding tray to support the product in the feeding trough. In addition, a discharge port is provided below the feeding tray, and the discharge port is located on the rear side of the stamping head.

[0026] To further optimize this technical solution, the workpiece locking mechanism includes a limit block, a drive block, and a synchronization control mechanism;

[0027] Limiting blocks are evenly distributed inside the feeding trough;

[0028] The drive block is connected to the limit block to control the movement of the limit block, and the drive block and the feeding plate form a horizontal sliding structure.

[0029] The synchronous control mechanism is connected to the drive block to control the drive block.

[0030] To further optimize this technical solution, a second spring is fixedly connected to the outer side of the drive block to provide a reset pulling force for the drive block, thereby releasing the limiting block from its limiting state.

[0031] To further optimize this technical solution, the synchronization control mechanism includes a first gear, a mounting shaft, a second gear, a gear ring, a drive plate, and a triggering mechanism;

[0032] The first gear is located on the outside of the drive block and forms a meshing connection with the drive block;

[0033] The mounting shaft is fixed in the middle of the first gear, and a rotatable connection is formed between the mounting shaft and the feeding disc;

[0034] The second gear is fixedly connected to the mounting shaft, and the second gear is located below the first gear;

[0035] A gear ring is positioned outside the second gear and between the second gear to form a meshing connection;

[0036] The drive plate is located on the outside of the toothed ring and forms an meshing connection with the toothed ring, and the drive plate and the feeding plate form a horizontal sliding structure.

[0037] The trigger mechanism is located on the outside of the drive board to control the movement of the drive board.

[0038] To further optimize this technical solution, the triggering mechanism includes a positioning hole, a positioning head, and a telescopic device;

[0039] The positioning holes are located on the outside of the feeding tray and are correspondingly set on the drive plate.

[0040] The positioning head is located inside the base, and a nested structure is formed between the positioning head and the positioning hole. The positioning head passes through the positioning hole to push the drive plate to move.

[0041] The telescopic device is connected to the positioning head to control the movement of the positioning head.

[0042] Compared with the prior art, the beneficial effects of the present invention are:

[0043] (1) The nozzles on the connecting frame can provide spray lubrication to the stamping head, and can also play a part of the cooling effect. The connecting frame can rotate with the feeding plate, and automatically completes the lubrication of the stamping head when switching during product loading and unloading. No manual operation is required, making it more convenient to use. At the same time, the product loading and unloading is not carried out under the stamping head, which is also safer.

[0044] (2) The product is automatically fed and stamped by rotating the feeding tray. The feeding tray can bring the product into the base for stamping, making the stamping environment of the product more stable. At the same time, sound insulation materials are installed on the base and the feeding tray to reduce stamping noise and make the stamping of the device quieter and more stable.

[0045] (3) The movement of the piston squeezes the oil in the storage chamber outward, and when the piston moves down to reset, it can automatically suck the oil in the storage chamber to replenish the oil and facilitate the next lubrication. The spraying method allows the stamping head to be effectively lubricated before stamping, making the subsequent stamping smoother.

[0046] (4) By setting the limit block, the product in the feeding trough can be limited. When the product moves to the bottom of the stamping head, the control limit block moves. Multiple sets of limit blocks can move synchronously to lock the product in the center, so that the subsequent stamping position remains stable and the stamping quality is improved.

[0047] (5) The positioning effect of the feed plate rotation can be achieved by the connection between the positioning head and the positioning hole, so that the position of the feed plate remains stable during subsequent stamping. The feed plate can continue to rotate after the positioning head disengages from the connection between the positioning head and the positioning hole. Attached Figure Description

[0048] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0049] Figure 2 This is a side view of the structure of the present invention;

[0050] Figure 3 This is a top view of the base structure of the present invention;

[0051] Figure 4 This is a schematic diagram of the main cross-sectional structure of the connecting frame of the present invention;

[0052] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point a;

[0053] Figure 6 This is a schematic diagram of the main cross-sectional structure of the base of the present invention;

[0054] Figure 7 This is a top view of the feeding tray structure of the present invention;

[0055] Figure 8 This is a top-section schematic diagram of the feeding tray structure of the present invention;

[0056] Figure 9 This is a schematic diagram of the main cross-sectional structure of the feeding tray of the present invention;

[0057] Figure 10 This is a top view of the toothed ring structure of the present invention;

[0058] Figure 11 This is a top-section schematic diagram of the base structure of the present invention.

[0059] In the diagram: 1. Base; 2. Stamping head; 3. Stamping port; 4. Collection box; 5. Feeding tray; 6. Drive shaft; 7. Connecting frame; 8. Oil storage chamber; 9. Nozzle; 10. First connecting groove; 11. Storage chamber; 12. Piston; 13. First one-way valve; 14. Second connecting groove; 15. Second one-way valve; 16. First spring; 17. Guide block; 18. Top block; 19. Trigger rod; 20. Arc-shaped block; 21. Feeding groove; 22. Support plate; 23. Discharge port; 24. Limiting block; 25. Drive block; 26. Second spring; 27. First gear; 28. Mounting shaft; 29. ​​Second gear; 30. Gear ring; 31. Drive plate; 32. Positioning hole; 33. Positioning head; 34. Telescopic device. Detailed Implementation

[0060] 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.

[0061] Please see Figures 1-10 Example 1: The present invention provides the following technical solution: A stamping device for processing ball valves with a self-lubricating structure, comprising a base 1 and a stamping head 2. The stamping head 2 is disposed above the base 1, and a stamping port 3 is disposed below the stamping head 2. The stamping port 3 is located above the base 1 to provide downward punching space for the stamping head 2. A feeding plate 5 is disposed inside the base 1. A loading groove 21 is evenly distributed inside the feeding plate 5, and a workpiece locking mechanism is disposed outside the loading groove 21 to lock the workpiece in the loading groove 21. A drive shaft 6 is fixed in the middle of the feeding plate 5. The drive shaft 6 is rotatably connected to the base 1, and the end of the drive shaft 6 is connected to a servo motor to obtain rotation. The drive shaft 6 is equipped with a connecting frame 7 above it, which is located below the stamping head 2. The end of the connecting frame 7 is equipped with a nozzle 9, which is offset from the position of the feeding trough 21. A lubrication control mechanism is located below the nozzle 9. A collection box 4 is located below the stamping port 3, which is located below the feeding trough 21. The collection box 4 and the base 1 form a front-to-back sliding structure. The left end of the feeding tray 5 is located outside the base 1. A support plate 22 is located below the feeding tray 5 to support the product in the feeding trough 21. An outlet 23 is located below the feeding tray 5, which is located behind the stamping head 2.

[0062] In use, the product to be stamped can be placed in the feeding trough 21 in the feeding tray 5. By controlling the rotation of the feeding tray 5, the product is sent to the bottom of the stamping head 2. The upper part of the stamping head 2 is connected to a hydraulic device or other lifting structure to control the movement of the stamping head 2. The stamping head 2 moves down and passes through the stamping port 3 to stamp the product. After the stamped material falls into the collection box 4, the subsequent stamping head 2 rises, and the feeding tray 5 continues to rotate to bring the product to the discharge port 23. At the same time, the next set of processed products moves to the bottom of the stamping head 2. When the feeding tray 5 rotates, the connecting frame 7 will drive the nozzle 9 to pass under the stamping head 2 to spray oil lubrication on the stamping head 2.

[0063] Example 2: Based on Example 1, a lubrication control mechanism is disclosed, including a first connecting groove 10, a storage chamber 11, a piston 12, an automatic replenishment mechanism, and an automatic triggering mechanism. The first connecting groove 10 is located below the nozzle 9, connecting the nozzle 9 and the storage chamber 11. The storage chamber 11 is located below the first connecting groove 10. The piston 12 is located inside the storage chamber 11, forming a sliding structure between the piston 12 and the storage chamber 11. The automatic replenishment mechanism is connected to the storage chamber 11 to replenish the oil. The automatic triggering mechanism controls the piston 12 to move and squeeze the oil out to lubricate the punch head 2. The automatic replenishment mechanism includes an oil storage chamber 8, a first one-way valve 13, a second connecting groove 14, and a second one-way valve 15. The oil storage chamber 8 is located in the middle of the connecting frame 7. The first one-way valve 13 is located inside the first connecting groove 10, and the conduction direction of the first one-way valve 13 is from the first connecting groove 10 to the nozzle 9. The second connecting groove 14 is located... The storage chamber 11 is connected to the side of the storage chamber 11, and the upper part of the second connecting groove 14 is connected to the bottom of the oil storage chamber 8. The second one-way valve 15 is located inside the second connecting groove 14, and the conduction direction of the second one-way valve 15 is from the second connecting groove 14 to the storage chamber 11. The automatic triggering mechanism includes a first spring 16, a guide block 17, a top block 18, a trigger rod 19, and an arc block 20. The first spring 16 is fixed below the piston 12 to provide a downward reset force for the piston 12. The guide block 17 is fixed below the piston 12. The top block 18 is located below the guide block 17, and the top of the top block 18 has an inclined structure design. The top block 18 and the connecting frame 7 form a horizontal sliding structure. The trigger rod 19 is fixed at the outer end of the top block 18 and passes through the outer surface of the connecting frame 7. The arc block 20 is fixed above the base 1, and the trigger rod 19 is squeezed by the arc block 20 after passing through the arc block 20.

[0064] When the feeding tray 5 rotates and feeds, the connecting frame 7 will drive the nozzle 9 to pass under the punch head 2. At the same time, the trigger rod 19 is squeezed by the arc block 20 and pushes the top block 18 to move. The top block 18 pushes the piston 12 upward through the guide block 17, which pushes the oil in the storage chamber 11 out and sprays it out through the nozzle 9. When the trigger rod 19 disengages from the arc block 20, the piston 12 returns to its original position downward. The oil in the oil storage chamber 8 enters the storage chamber 11 through the second connecting groove 14 and the second one-way valve 15 to prepare for the next lubrication.

[0065] Example 3: Based on Example 1, a workpiece locking mechanism is disclosed, comprising a limiting block 24, a driving block 25, and a synchronous control mechanism. The limiting blocks 24 are evenly distributed inside the feeding groove 21. The driving block 25 is connected to the limiting blocks 24 to control the movement of the limiting blocks 24, and a horizontal sliding structure is formed between the driving block 25 and the feeding tray 5. The synchronous control mechanism is connected to the driving block 25 to control the driving block 25. A second spring 26 is fixedly connected to the outside of the driving block 25 to provide a reset pull force for the driving block 25, thereby releasing the limiting block 24 from its limiting state. The synchronous control mechanism includes a first gear 27, a mounting shaft 28, a second gear 29, a gear ring 30, a driving plate 31, and a trigger mechanism. The first gear 27 is disposed on the outside of the driving block 25 and forms a meshing connection with the driving block 25. The mounting shaft 28 is fixed in the middle of the first gear 27, and a horizontal sliding structure is formed between the mounting shaft 28 and the feeding tray 5. A rotating connection is formed, with the second gear 29 fixedly connected to the mounting shaft 28, and the second gear 29 located below the first gear 27. A gear ring 30 is positioned outside the second gear 29, forming a meshing connection between the second gear 29 and the gear ring 29. A drive plate 31 is positioned outside the gear ring 30, forming a meshing connection between the drive plate 31 and the gear ring 30, and a horizontal sliding structure is formed between the drive plate 31 and the feeding disc 5. A triggering mechanism is positioned outside the drive plate 31 to control the movement of the drive plate 31. The triggering mechanism includes a positioning hole 32, a positioning head 33, and a telescopic device 34. The positioning hole 32 is opened on the outside of the feeding disc 5, and the positioning hole 32 is correspondingly set with the drive plate 31. The positioning head 33 is located inside the base 1, and a nested structure is formed between the positioning head 33 and the positioning hole 32. The positioning head 33 passes through the positioning hole 32 to push the drive plate 31 to move. The telescopic device 34 is connected to the positioning head 33 to control the movement of the positioning head 33.

[0066] After the product is brought to the bottom of the stamping head 2 by the feeding tray 5, the positioning head 33 can be moved by the telescopic device 34, so that the positioning head 33 extends into the positioning hole 32 to limit the rotation of the feeding tray 5. At the same time, the positioning head 33 pushes the drive plate 31 to move. The drive plate 31 drives the gear ring 30 to rotate through the meshing between the drive plate 31 and the gear ring 30. The gear ring 30 drives the mounting shaft 28 and the first gear 27 to rotate through the meshing of the second gear 29. The first gear 27 drives the drive block 25 and the limiting block 24 to move, limiting the product and keeping it stable during stamping.

[0067] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0068] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A punch device for ball valve machining with self-lubricating structure, comprising a base (1) and a punch head (2), wherein the punch head (2) is arranged above the base (1); a punch opening (3) is arranged below the punch head (2) to provide a punch space for the punch head (2); a feeding disc (5) is arranged in the base (1); a plurality of feeding grooves (21) are uniformly arranged in the feeding disc (5); a workpiece locking mechanism is arranged outside the feeding grooves (21) to lock the workpieces in the feeding grooves (21); a transmission shaft (6) is fixed to the middle of the feeding disc (5) and rotatably connected to the base (1); the end of the transmission shaft (6) is connected to a servo motor to obtain rotary power; a connecting frame (7) is arranged above the transmission shaft (6) and below the punch head (2); a nozzle (9) is arranged at the end of the connecting frame (7); the nozzle (9) and the feeding grooves (21) are arranged staggered; a lubricating control mechanism is arranged below the nozzle (9). characterized in that The lubricating control mechanism comprises a first communication groove (10), a storage chamber (11), a piston (12), an automatic supplementing mechanism and an automatic triggering mechanism. The first communication groove (10) is arranged below the nozzle (9) to communicate the nozzle (9) and the storage chamber (11). The storage chamber (11) is arranged below the first communication groove (10). The piston (12) is arranged in the storage chamber (11) to form an up-down sliding structure. The automatic supplementing mechanism is connected to the storage chamber (11) to supplement oil. The automatic triggering mechanism controls the piston (12) to move to extrude oil to lubricate the punch head (2). The automatic triggering mechanism comprises a first spring (16), a guide block (17), a top block (18), a trigger rod (19) and an arc block (20). The first spring (16) is fixed below the piston (12) to provide a downward reset tension to the piston (12). The guide block (17) is fixed below the piston (12). The top block (18) is arranged below the guide block (17) and has an inclined structure above; the top block (18) and the connecting frame (7) form a horizontal sliding structure. The trigger rod (19) is fixed to the outer end of the top block (18) and penetrates through the outer surface of the connecting frame (7). The arc block (20) is fixed above the base (1) and the trigger rod (19) is extruded by the arc block (20). A collection box (4) is arranged below the punch opening (3) and below the feeding grooves (21); the collection box (4) and the base (1) form a front-rear sliding structure.

2. The punch device for ball valve machining with self-lubricating structure according to claim 1, characterized in that: The automatic supplementing mechanism comprises an oil storage chamber (8), a first one-way valve (13), a second communication groove (14) and a second one-way valve (15).

3. The punch device for ball valve machining with self-lubricating structure according to claim 2, characterized in that: The oil storage chamber (8) is arranged in the middle of the connecting frame (7). ​ The first one-way valve (13) is arranged in the first communication groove (10), and the conduction direction of the first one-way valve (13) is from the first communication groove (10) to the nozzle (9); The second communication groove (14) is arranged at the side of the storage chamber (11) and is communicated with the storage chamber (11), and the upper portion of the second communication groove (14) is communicated with the bottom of the oil storage chamber (8); The second one-way valve (15) is arranged in the second communication groove (14), and the conduction direction of the second one-way valve (15) is from the second communication groove (14) to the storage chamber (11).

4. The punch device for ball valve machining with self-lubricating structure according to claim 3, characterized in that: The left end of the feeding disc (5) is located outside the base (1), a supporting plate (22) is arranged below the feeding disc (5) to support the products in the feeding groove (21), and a discharging port (23) is arranged below the feeding disc (5) and located at the rear side of the punching head (2).

5. The punch device for ball valve machining with self-lubricating structure according to claim 4, characterized in that: The workpiece locking mechanism comprises a limiting block (24), a driving block (25) and a synchronous control mechanism; The limiting block (24) is arranged at equal angles in the feeding groove (21); The driving block (25) is connected with the limiting block (24) to control the movement of the limiting block (24), and a horizontal sliding structure is formed between the driving block (25) and the feeding disc (5); The synchronous control mechanism is connected with the driving block (25) to control the driving block (25).

6. The punch device for ball valve machining with self-lubricating structure according to claim 5, characterized in that: The second spring (26) is fixedly connected to the outer side of the driving block (25) to provide a reset tension for the driving block (25), so that the limiting block (24) is released from the limiting state.

7. The punch device for ball valve machining with self-lubricating structure according to claim 6, characterized in that: The synchronous control mechanism comprises a first gear (27), a mounting shaft (28), a second gear (29), a gear ring (30), a driving plate (31) and a trigger mechanism; The first gear (27) is arranged on the outer side of the driving block (25) and is in meshing connection with the driving block (25); The mounting shaft (28) is fixedly arranged in the middle portion of the first gear (27) and is in rotating connection with the feeding disc (5); The second gear (29) is fixedly connected with the mounting shaft (28) and is located below the first gear (27); The gear ring (30) is arranged on the outer side of the second gear (29) and is in meshing connection with the second gear (29); The driving plate (31) is arranged on the outer side of the gear ring (30) and is in meshing connection with the gear ring (30), and a horizontal sliding structure is formed between the driving plate (31) and the feeding disc (5); The trigger mechanism is arranged on the outer side of the driving plate (31) to control the movement of the driving plate (31).

8. The punch device for ball valve machining with self-lubricating structure according to claim 7, characterized in that: The trigger mechanism comprises a positioning hole (32), a positioning head (33) and an extender (34); The positioning hole (32) is arranged on the outer side of the feeding disc (5) and is arranged in correspondence with the driving plate (31); The positioning head (33) is arranged in the base (1) and is in nesting structure with the positioning hole (32), and the positioning head (33) passes through the positioning hole (32) to push the driving plate (31) to move; The extender (34) is connected with the positioning head (33) to control the movement of the positioning head (33).

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