A diamond press piston forging tooling

Abstract

The present application relates to the technical field of forging equipment, and discloses a diamond press piston forging tool, which comprises a rack, a forming die is arranged on the rack, an auxiliary slag removal device is arranged on one side of the rack, the auxiliary slag removal device comprises a movable supporting seat, a lifting processing seat is arranged on the supporting seat, an extension seat is arranged on the lower side of the processing seat, a plurality of grooves are arranged on the extension seat in a ring shape, a plurality of first nozzles are arranged in the grooves in a longitudinal direction, and a second nozzle is arranged on the bottom of the extension seat. Through the processing seat provided with the first scraper and the extension seat provided with the second scraper, the stubborn stains on the inner wall of the cavity can be scraped off by the first scraper and the second scraper, and the scraped impurities can be gathered under the action of the first scraper and the second scraper. When air is blown, the first scraper and the second scraper can guide the impurities to be discharged at a preset angle.

Description

Technical Field

[0001] This invention relates to the field of forging equipment technology, specifically to a diamond press piston forging fixture. Background Technology

[0002] Piston forging fixtures, simply put, are the various tools and devices used in the piston forging process. They mainly fall into three categories: forging dies, positioning fixtures, and auxiliary fixtures. Auxiliary fixtures include forging bases, forging platforms, rotary drive mechanisms, slag removal devices, and push-pull devices. Forging bases and forging platforms provide basic support for forging. Rotary drive mechanisms can drive the forging platform to rotate, making forging more uniform. Slag removal devices are used to remove oxide scale and waste generated during the forging process. Push-pull devices can assist in demolding, replacing manual placement of demolding pads.

[0003] During piston forging, the "slag" produced is mainly iron oxide scale formed by the oxidation of the high-temperature billet, as well as a small amount of residual mold debris and carbonized impurities from lubricating grease. If these impurities enter the mold cavity, they can cause defects in the piston forging, such as pitting, slag inclusions, and surface cracks. Common slag removal equipment is generally a pneumatic slag removal device, which uses the blowing force of airflow to blow the residual oxide scale and debris in the mold cavity to the flash area. Existing pneumatic slag removal devices have the following drawbacks: 1. They cannot control the direction of slag blowing, causing waste slag to splash everywhere, which makes subsequent cleaning inconvenient; 2. It is difficult to clean stubborn stains in the mold cavity using only airflow, resulting in poor cleaning effect. Summary of the Invention

[0004] This invention provides a diamond press piston forging fixture, which has the advantages of better cleaning effect and can discharge debris at a preset angle. It solves the problems mentioned in the background art, such as the inability of existing pneumatic cleaning equipment to control the blowing direction, resulting in waste slag splashing and causing inconvenience for subsequent cleaning; and the difficulty of cleaning stubborn stains in the cavity by airflow alone, resulting in poor cleaning effect.

[0005] The present invention provides the following technical solution: a diamond press piston forging fixture, including a frame, a forming mold on the frame, and an auxiliary slag removal device on one side of the frame. The auxiliary slag removal device includes a movable support base, a liftable processing base on the support base, an extension base on the lower side of the processing base, and a plurality of grooves arranged around the extension base. A plurality of first nozzles arranged longitudinally are provided in the grooves, and a second nozzle is provided at the bottom of the extension base. The processing seat is rotatably connected to the extension seat, and the processing seat is provided with a first motor for driving the extension seat to rotate. The processing seat is provided with a first scraper assembly, and the extension seat is provided with a second scraper on one side. As an optional solution of the diamond press piston forging fixture described in this invention, the first scraper assembly includes a gear ring and a second motor. The gear ring is rotatably connected to the processing seat, and a first scraper is provided on the gear ring. The second motor is fixedly connected to the processing seat, and the output shaft of the second motor is connected to the gear ring via a gear transmission.

[0006] As an optional embodiment of the diamond press piston forging fixture described in this invention, all grooves except one are provided with a sealing plate, the sealing plate has several through holes, and the sealing plate is elastically connected to the extension seat through a first spring. The extension seat is provided with an adjustment mechanism for adjusting the sealing plate.

[0007] As an optional solution of the diamond press piston forging fixture described in this invention, the adjusting mechanism includes an adjusting seat, which is slidably connected to the extension seat, and the adjusting seat abuts against all the sealing plates. The adjusting seat is provided with an inclined surface, and the processing seat is provided with an extension rod.

[0008] As an optional solution of the diamond press piston forging fixture described in this invention, the adjusting mechanism includes a connecting plate, and the connecting plate is slidably connected to the extension seat. The extension seat is also provided with an electric push rod, and the piston rod of the electric push rod is fixedly connected to the connecting plate.

[0009] As an optional solution of the diamond press piston forging fixture described in this invention, the extension seat has a base at its bottom, and the base has a plurality of liquid outlets. The liquid outlets are elastically connected to the base via torsion springs. The base has a limiting seat in the middle, and the limiting seat has a push rod. The push rod is elastically connected to the extension seat via a second spring. One end of the liquid outlet abuts against the limiting seat.

[0010] As an optional solution for the diamond press piston forging fixture described in this invention, the upper side of the base is provided with a storage cavity, and the inlet of the liquid outlet is connected to the storage cavity through a pipe.

[0011] As an optional solution of the diamond press piston forging fixture described in this invention, the sealing plate is provided with a bracket, and the bracket is elastically connected to the sealing plate by a third spring. The bracket is provided with a plurality of sealing gaskets, and the top of the bracket is provided with an inclined surface. The lower side of the connecting plate is provided with a plurality of protrusions, and the position and number of the protrusions correspond one-to-one with the bracket.

[0012] As an optional embodiment of the diamond press piston forging fixture described in this invention, the frame is provided with a first cylinder for moving the support seat, and the support seat is provided with a second cylinder for raising and lowering the processing seat.

[0013] As an optional solution of the diamond press piston forging fixture described in this invention, the upper side of the frame is provided with a pressure head, and the pressure head is slidably connected to the frame through a guide rod. The top of the frame is provided with a hydraulic cylinder for pushing the pressure head up and down.

[0014] The present invention has the following beneficial effects: 1. This diamond press piston forging fixture, by setting a processing seat with a first scraper and an extension seat with a second scraper, allows the first and second scrapers to rotate independently. The first and second scrapers can scrape off stubborn stains on the inner wall of the cavity. At the same time, the scraped impurities can be gathered by the action of the first and second scrapers. When the impurities gather in a certain groove, the first and second scrapers are located on both sides of the groove. When air is sprayed through the first nozzle, the first and second scrapers can guide the impurities and discharge them at a preset angle, making subsequent cleaning more convenient.

[0015] 2. This diamond press piston forging fixture, by setting a groove with a sealing plate, can seal the first nozzle. After the initial air blowing cleaning is completed, the entire auxiliary slag removal device continues to descend until the second nozzle contacts the bottom of the cavity. In this way, the second nozzle can be sealed by the forming mold. Then, the adjustment mechanism works to seal the other first nozzles while retaining some of them. When slag is discharged, air is supplied again, which can effectively increase the air pressure of the first nozzle at the slag discharge station and effectively improve the slag discharge effect.

[0016] This technical solution uses air blowing to remove slag. By sealing a portion of the first nozzle with a sealing plate, the other portion of the first nozzle can provide higher air pressure during operation without changing the total air supply, thus greatly improving the slag removal effect.

[0017] 3. This diamond press piston forging fixture features a base with a liquid outlet nozzle, which is rotatably mounted on the base. Correspondingly, a limiting seat is provided inside the base to limit the liquid outlet nozzle. The limiting seat is slidably mounted inside the base and has a push rod on it. One end of the push rod passes through an extension seat and abuts against a connecting plate. When the first nozzle needs to be blocked, the position of the sealing plate needs to be adjusted through the connecting plate. During this process, the connecting plate also abuts against the push rod, which in turn pushes the limiting seat to move. As the limiting seat moves, the liquid outlet nozzle gradually deflects under the action of a torsion spring. The liquid outlet nozzle, which originally had a downward liquid outlet direction, deflects towards the inner wall of the cavity, thus reducing the spray dead angle of the liquid outlet nozzle.

[0018] This technical solution uses a base with a limiting seat and a liquid outlet to spray the release agent. By cooperating with the adjustment mechanism, the liquid outlet can be adjusted at the same time as the first nozzle, which is more convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the auxiliary slag removal device of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the extension seat and the processing seat of the present invention.

[0022] Figure 4 This is a schematic diagram of the extension seat structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the extension base and the first motor of the present invention.

[0024] Figure 6 This is a schematic diagram showing the relative position structure of the adjustment mechanism and the extension seat in Embodiment 2 of the present invention.

[0025] Figure 7 This is a schematic diagram showing the relative position structure of the adjustment mechanism and the extension seat in Embodiment 3 of the present invention.

[0026] Figure 8 This is a schematic diagram of the internal structure of the base of the present invention.

[0027] Figure 9 This is a schematic diagram of the internal structure of the sealing plate of the present invention.

[0028] In the diagram: 1. Frame; 2. Molding mold; 3. Support base; 4. Processing base; 5. Extension base; 501. Groove; 6. First nozzle; 7. Second nozzle; 8. First motor; 9. Second scraper; 10. Gear ring; 11. Second motor; 12. Sealing plate; 13. Through hole; 14. First spring; 15. Adjusting base; 16. Extension rod; 17. Electric push rod; 18. Connecting plate; 1801. Protrusion; 19. Base; 20. Liquid outlet; 21. Limiting seat; 22. Push rod; 23. Second spring; 24. Storage cavity; 25. Bracket; 26. Third spring; 27. Sealing gasket; 28. First cylinder; 29. ​​Second cylinder; 30. Pressure head; 31. Guide rod; 32. Hydraulic cylinder; 33. First scraper; 34. Air supply pipe; 35. Torsion spring. Detailed Implementation

[0029] 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.

[0030] Example 1, please refer to Figures 1 to 9 A diamond press piston forging fixture includes a frame 1, a forming mold 2 on the frame 1, and an auxiliary slag removal device on one side of the frame 1. The auxiliary slag removal device includes a movable support base 3, a liftable processing base 4 on the support base 3, an extension base 5 on the lower side of the processing base 4, and a plurality of grooves 501 arranged around the extension base 5. A plurality of first nozzles 6 arranged longitudinally are provided in the grooves 501, and a second nozzle 7 is provided at the bottom of the extension base 5. The processing seat 4 is rotatably connected to the extension seat 5, and the processing seat 4 is provided with a first motor 8 for driving the extension seat 5 to rotate. The processing seat 4 is provided with a first scraper assembly, and the extension seat 5 is provided with a second scraper 9 on one side.

[0031] The first scraper assembly includes a toothed ring 10 and a second motor 11. The toothed ring 10 is rotatably connected to the processing seat 4, and a first scraper 33 is provided on the toothed ring 10. The second motor 11 is fixedly connected to the processing seat 4, and the output shaft of the second motor 11 is connected to the toothed ring 10 through a gear.

[0032] The frame 1 is equipped with a first cylinder 28 for moving the support base 3, and the support base 3 is equipped with a second cylinder 29 for raising and lowering the processing seat 4.

[0033] A pressure head 30 is provided on the upper side of the frame 1, and the pressure head 30 is slidably connected to the frame 1 through a guide rod 31. A hydraulic cylinder 32 for pushing the pressure head 30 up and down is provided on the top of the frame 1.

[0034] During use, the blank is placed into the forming mold 2 and then cooperates with the pressure head 30 to complete the forging of the blank. After forging, the cavity of the forming mold 2 is treated by an auxiliary slag removal device. The auxiliary slag removal device mainly consists of a support seat 3, a treatment seat 4 and an extension seat 5. Several first nozzles 6 are provided on the outer peripheral wall of the extension seat 5, and a second nozzle 7 is provided at the bottom of the extension seat 5. During cleaning, the position of the support seat 3 is first adjusted. When it reaches the predetermined position, the second cylinder 29 works, pushing the treatment seat 4 and the extension seat 5 down to enter the cavity. Then, the first nozzles 6 and the second nozzles 7 spray high-pressure gas to perform preliminary cleaning of the cavity.

[0035] To improve the cleaning effect, this technical solution provides a rotatable first scraper 33 on the treatment seat 4 and a second scraper 9 on the extension seat 5. A first motor 8 is provided inside the treatment seat 4 to drive the extension seat 5 to rotate. The first motor 8 drives the extension seat 5 to rotate, thereby driving the second scraper 9 to rotate. At the same time, the second motor 11 drives the toothed ring 10 to rotate, thereby causing the first scraper 33 to rotate. The first scraper 33 and the second scraper 9 can scrape off stubborn stains on the inner wall of the cavity. At the same time, the scraped impurities can be collected by the action of the first scraper 33 and the second scraper 9. Specifically, initially, the first scraper 33 and the second scraper 9 are close together. When the auxiliary slag removal device enters the cavity, the extension seat 5 and the first scraper 33 rotate, thus unfolding the two scrapers. As the extension seat 5 and the first scraper 33 rotate, the first scraper 33 and the second scraper 9 gradually move closer together on the other side of the extension seat 5. Except for one groove 501, all the remaining grooves 501 are equipped with sealing plates 12. Finally, the first scraper 33 and the second scraper 9 will stop on both sides of the groove 501 without sealing plates 12. Under the action of the first scraper 33 and the second scraper 9, impurities accumulate here. At this time, air is ventilated again to blow out the impurities. The first scraper 33 and the second scraper 9 can guide the impurities so that they can be discharged at a preset angle, making subsequent cleaning more convenient.

[0036] Example 2 is an explanation based on Example 1. For details, please refer to [link / reference]. Figure 4 , Figure 6 Except for one groove 501, all other grooves 501 are provided with sealing plates 12. The sealing plates 12 are provided with several through holes 13, and the sealing plates 12 are elastically connected to the extension seat 5 through the first spring 14. The extension seat 5 is provided with an adjustment mechanism for adjusting the sealing plates 12.

[0037] The adjustment mechanism includes an adjustment seat 15, which is slidably connected to the extension seat 5. The adjustment seat 15 is in uniform contact with all the sealing plates 12. The adjustment seat 15 is provided with an inclined surface, and the processing seat 4 is provided with an extension rod 16.

[0038] To improve the cleaning effect, this technical solution provides a sealing plate 12 at the groove 501 to block the first nozzle 6. The sealing plate 12 has through holes 13 with positions and numbers corresponding to the first nozzle 6. Under normal circumstances, the through holes 13 are opposite to the first nozzle 6, so that gas can be ejected through the first nozzle 6. When slag discharge is required, an extension rod 16 is provided on the treatment seat 4. Correspondingly, an inclined protrusion is provided on the adjustment seat 15. When the treatment seat 4 and the extension seat 5 are rotated to the preset position, the extension rod 16 abuts against the inclined surface on the adjustment seat 15. Under the push of the extension rod 16, the adjustment seat 15 moves downward. Under the push of the adjustment seat 15, the sealing plate 12 overcomes the resistance of the first spring 14 and moves. At this time, the through holes 13 are misaligned with the first nozzle 6, so that more gas that originally flowed out will be ejected through the first nozzle 6 at the groove 501 where it is not blocked by the sealing plate 12, effectively improving the cleaning effect.

[0039] It should be noted that an air supply pipe 34 is provided in the middle of the processing seat 4. The air supply pipe 34 is used to supply air to the first nozzle 6 and the second nozzle 7. The second nozzle 7 is located at the bottom of the entire equipment. Therefore, in order to prevent the second nozzle 7 from being blocked, the entire equipment is left with a certain gap from the bottom of the cavity. After the initial air blowing cleaning is completed, the entire auxiliary slag removal device continues to descend until the second nozzle 7 contacts the bottom of the cavity. In this way, the second nozzle 7 can be blocked by the forming mold 2. Then the adjustment mechanism works to block the other first nozzles 6 while leaving some of the first nozzles 6 open for air. When slag is discharged, air is supplied again, which can effectively increase the air pressure of the first nozzle 6 at the slag discharge station and effectively improve the slag discharge effect. A universal swivel joint is provided at one end of the air supply pipe 34 for easy connection with the air pipe. The air supply pipe 34 is rotatably connected to the treatment seat 4 through a bearing, and the air supply pipe 34 is fixedly connected to the extension seat 5. A transmission gear is provided on the air supply pipe 34. Correspondingly, a gear that meshes with the transmission gear is provided on the motor shaft of the first motor 8. When the first motor 8 is working, it can drive the air supply pipe 34 to rotate, thereby causing the extension seat 5 to rotate.

[0040] Example 3 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 7-9 The adjustment mechanism includes a connecting plate 18, which is slidably connected to the extension seat 5. The extension seat 5 is also provided with an electric push rod 17, and the piston rod of the electric push rod 17 is fixedly connected to the connecting plate 18.

[0041] The sealing plate 12 is provided with a bracket 25, and the bracket 25 is elastically connected to the sealing plate 12 through a third spring 26. The bracket 25 is provided with a number of sealing gaskets 27, and the top of the bracket 25 is provided with a slope. The lower side of the connecting plate 18 is provided with a number of protrusions 1801, and the position and number of the protrusions 1801 correspond one-to-one with the bracket 25.

[0042] This embodiment provides another technical solution for the adjustment mechanism. The adjustment mechanism includes a connecting plate 18. Correspondingly, an electric push rod 17 is also provided in the extension seat 5. The connecting plate 18 can be moved by the electric push rod 17. A movable bracket 25 is provided in the sealing plate 12. The bracket 25 is elastically connected to the sealing plate 12. Correspondingly, a plurality of sealing gaskets 27 are provided on the bracket 25. One end of the sealing gasket 27 extends to the outside of the sealing plate 12. A plurality of protrusions 1801 are provided on the lower side of the connecting plate 18. When the connecting plate 18 moves downward, the protrusions 1801 first contact the inclined surface on the bracket 25. When the third spring 26 has a greater elastic force than the first spring 14, the sealing plate 12 will overcome the resistance of the first spring 14 and move under the push of the protrusion 1801. When the sealing plate 12 moves to the designated position, it stops moving. At this time, the sealing gasket 27 is aligned with the first nozzle 6. Then the protrusion 1801 continues to apply force, and the bracket 25 overcomes the resistance of the third spring 26 and moves. Under the drive of the bracket 25, the sealing gasket 27 moves closer to the first nozzle 6 and finally comes into contact with the first nozzle 6. By setting the sealing plate 12 with the sealing gasket 27, the sealing effect on the first nozzle 6 can be greatly improved.

[0043] It should be noted that the sealing gasket 27 is made of a high-temperature resistant elastic material, such as high-temperature resistant rubber, which can be used in high-temperature environments and has good sealing performance.

[0044] Example 4 is an explanation based on Example 1. For details, please refer to [link / reference]. Figure 7 , Figure 8 The bottom of the extension seat 5 is provided with a base 19, and the base 19 is provided with a number of liquid outlets 20. The liquid outlets 20 are elastically connected to the base 19 through a torsion spring 35. The middle part of the base 19 is provided with a limiting seat 21, and the limiting seat 21 is provided with a push rod 22. The push rod 22 is elastically connected to the extension seat 5 through a second spring 23. One end of the liquid outlet 20 abuts against the limiting seat 21.

[0045] The upper side of the base 19 is provided with a storage cavity 24, and the inlet of the liquid outlet 20 is connected to the storage cavity 24 through a pipe.

[0046] To improve the demolding effect, a release agent needs to be sprayed into the cavity after cleaning. This technical solution includes several rotatable nozzles 20 on the base 19. The nozzles 20 are rotatably connected to the base 19 via a rotating shaft. A torsion spring 35 is mounted on the rotating shaft, with one end fixedly connected to the nozzle 20 and the other end fixedly connected to the base 19. A limiting seat 21 is also provided in the middle of the base 19, slidingly connected to it. Driven by the torsion spring 35, the nozzle 20 with its nozzle facing downwards, and the other end abutting against the limiting seat 21. When the connecting plate 18 moves downwards, it abuts against the ejector rod 22. Pushed by 8, the ejector rod 22 overcomes the resistance of the second spring 23 and moves. Driven by the ejector rod 22, the limit seat 21 moves downward. As the limit seat 21 moves, the nozzle 20 gradually deflects under the action of the torsion spring 35. At this time, the nozzle 20, which was originally pointing downward, will gradually move towards the inner wall of the cavity. That is to say, after cleaning, the extension seat 5 moves upward. During this process, the release agent is sprayed out through the nozzle 20. Under normal circumstances, the end of the nozzle 20 with the nozzle is pointing downward. At this time, the release agent can be sprayed on the bottom of the cavity. Then the nozzle 20 deflects, and at this time, the release agent can be sprayed on the inner wall of the cavity through the nozzle 20, and the spraying effect is better.

[0047] For convenient liquid supply, a storage chamber 24 is provided in the base 19. The inlet of the liquid outlet 20 is connected to the storage chamber 24 through a pipe. The storage chamber 24 can be connected to an external pipe to the liquid supply equipment.

[0048] It should be noted that a channel for the second nozzle 7 to pass through is provided on the base 19. In use, the second nozzle 7 can pass through the base 19 and contact the bottom of the cavity.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A diamond press piston forging fixture, comprising a frame (1), characterized in that: The frame (1) is provided with a forming mold (2), and an auxiliary slag removal device is provided on one side of the frame (1). The auxiliary slag removal device includes a movable support base (3), a liftable processing base (4) is provided on the support base (3), an extension base (5) is provided on the lower side of the processing base (4), and a number of grooves (501) are arranged around the extension base (5). A number of first nozzles (6) are arranged longitudinally in the grooves (501), and a second nozzle (7) is provided at the bottom of the extension base (5). The processing base (4) is rotatably connected to the extension base (5), and a first motor (8) for driving the extension base (5) to rotate is provided in the processing base (4). A first scraper assembly is provided on the processing base (4), and a second scraper (9) is provided on one side of the extension base (5).

2. The diamond press piston forging fixture according to claim 1, characterized in that: The first scraper assembly includes a toothed ring (10) and a second motor (11). The toothed ring (10) is rotatably connected to the processing seat (4), and a first scraper (33) is provided on the toothed ring (10). The second motor (11) is fixedly connected to the processing seat (4), and the output shaft of the second motor (11) is connected to the toothed ring (10) through a gear.

3. The diamond press piston forging fixture according to claim 1, characterized in that: Except for one groove (501), all the remaining grooves (501) are provided with a sealing plate (12). The sealing plate (12) is provided with several through holes (13). The sealing plate (12) is elastically connected to the extension seat (5) through a first spring (14). The extension seat (5) is provided with an adjustment mechanism for adjusting the sealing plate (12).

4. The diamond press piston forging fixture according to claim 3, characterized in that: The adjustment mechanism includes an adjustment seat (15), which is slidably connected to the extension seat (5), and the adjustment seat (15) is in uniform contact with all the sealing plates (12). The adjustment seat (15) is provided with an inclined surface, and the processing seat (4) is provided with an extension rod (16).

5. The diamond press piston forging fixture according to claim 3, characterized in that: The adjustment mechanism includes a connecting plate (18), and the connecting plate (18) is slidably connected to the extension seat (5). The extension seat (5) is also provided with an electric push rod (17), and the piston rod of the electric push rod (17) is fixedly connected to the connecting plate (18).

6. The diamond press piston forging fixture according to claim 5, characterized in that: The bottom of the extension seat (5) is provided with a base (19), and the base (19) is provided with a plurality of liquid outlets (20). The liquid outlets (20) are elastically connected to the base (19) through a torsion spring (35). The middle part of the base (19) is provided with a limiting seat (21), and the limiting seat (21) is provided with a top rod (22). The top rod (22) is elastically connected to the extension seat (5) through a second spring (23). One end of the liquid outlet (20) abuts against the limiting seat (21).

7. The diamond press piston forging fixture according to claim 6, characterized in that: The base (19) has a storage cavity (24) on its upper side, and the inlet of the liquid outlet (20) is connected to the storage cavity (24) through a pipe.

8. The diamond press piston forging fixture according to claim 5, characterized in that: The sealing plate (12) is provided with a bracket (25), and the bracket (25) is elastically connected to the sealing plate (12) by a third spring (26). The bracket (25) is provided with a plurality of sealing gaskets (27), and the top of the bracket (25) is provided with an inclined surface. The lower side of the connecting plate (18) is provided with a plurality of protrusions (1801), and the position and number of the protrusions (1801) correspond one-to-one with the bracket (25).

9. The diamond press piston forging fixture according to claim 1, characterized in that: The frame (1) is provided with a first cylinder (28) for pushing the support base (3) to move, and the support base (3) is provided with a second cylinder (29) for pushing the processing base (4) to rise and fall.

10. The diamond press piston forging fixture according to claim 1, characterized in that: The frame (1) is provided with a pressure head (30) on the upper side, and the pressure head (30) is slidably connected to the frame (1) through a guide rod (31). The top of the frame (1) is provided with a hydraulic cylinder (32) for pushing the pressure head (30) up and down.

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