A precision stamping die and method of using the same

Abstract

The present invention relates to the field of stamping die technology, and specifically, to a precision stamping die and a method for using the same. The die comprises a bottom plate, a die mechanism is disposed on the upper surface of the bottom plate, a stamping mechanism used in conjunction with the die mechanism is disposed above the die mechanism, side baffles are disposed on both sides of the die mechanism, and an ejection portion for ejecting the stamped part is disposed in the middle of the die mechanism, the ejection portion moves upward and guides the airflow to clean the impurities around the upper surface of the die mechanism, and the ejection portion pushes the arc-shaped protective plates symmetrically disposed between the side baffles on both sides to contract inward. The impurities on the upper edge of the die mechanism are cleaned by airflow to prevent the impurities from accumulating on the upper edge and affecting the quality of the stamped part, and then the side baffles and the arc-shaped protective plates are used to protect the splashing impurities, and then the internal auxiliary plug is used to make the negative pressure in the air storage chamber absorb the splashing impurities, to prevent the impurities from polluting the surrounding environment, and also to cause the impurities to adhere to the surface of the stamped part and affect the use.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and in particular to a precision stamping die and a method for using the same. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die (commonly known as a cold stamping die).

[0003] There are many existing technologies for stamping dies, such as:

[0004] Chinese Patent Publication No. CN111940607B discloses an automatic precision stamping die, including a base mechanism, a pouring mechanism, a die mechanism, a stabilizing mechanism and a driving mechanism, wherein the base mechanism includes a stamping base, a connecting sleeve, a No. 1 screw groove, a No. 1 support column and a No. 2 support column, and the four corners of the top of the stamping base are fixed with connecting sleeves. The beneficial effects of the present invention are as follows: through the operation of two electric telescopic rods, the telescopic end of the electric telescopic rod is extended, and the V-shaped pouring rod is pushed to move in a direction away from one end of the side plate through the pin shaft seat and the movable pin shaft, so that it rotates with the No. 1 movable shaft as the axis point, and in order to achieve a better tipping effect, through the slots cut on the two U-shaped clamp seats, the end of the V-shaped pouring rod away from the No. 1 movable groove can be inserted into the slot, thereby increasing the inclination angle of the pouring plate, and the inclination of the pouring plate drives the die to tilt together, so that the debris generated inside the die is poured out, avoiding the problem of remaining inside the die and affecting its subsequent processing.

[0005] It can be seen that the prior art usually uses jetting or pouring to clean the debris generated during the stamping process. However, these two cleaning methods are generally more effective for impurities with lower adhesion. However, for some debris with stronger adhesion, when cleaning the impurities on the die, the ejected gas will cause the impurities to splash, which not only affects the quality of the surrounding air, but also causes the splashed impurities to fall into the die. When stamping again, the impurities adhere to the die, thereby affecting the quality of the stamped parts. Summary of the invention

[0006] The object of the present invention is to provide a precision stamping die and a method of using the same to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the purpose of the present invention is to provide a precision stamping mold, including a base plate, a mold mechanism is arranged on the upper surface of the base plate, a stamping mechanism used in conjunction with the mold mechanism is arranged above the mold mechanism, side baffles are arranged on both sides of the mold mechanism, and an ejection part for ejecting the stamped parts is arranged in the middle of the mold mechanism, the ejection part moves upward and guides the airflow to clean the impurities around the upper surface of the mold mechanism, the ejection part pushes the arc-shaped protective plates symmetrically arranged between the side baffles on both sides to shrink inward, the arc-shaped protective plates on both sides are used to protect against splashing impurities, a filter plate is arranged on the inner side of the arc-shaped protective plate, the arc-shaped protective plate cooperates with the auxiliary part arranged at the bottom of the mold mechanism to form a negative pressure inside the arc-shaped protective plate, the arc-shaped protective plate rotates in the opposite direction to spray out the water inside it, so as to flush the impurities attached to the filter plate, and a collection box is arranged on the inner side of the arc-shaped protective plate.

[0008] As a further improvement of the technical solution, the ejection part includes an inverted vertebral body and a push rod, the bottom of the inverted vertebral body is coaxially connected to the vertical rod, the bottom of the vertical rod is fixedly connected to a fixed block, and both sides of the fixed block are rotatably connected to the push rod.

[0009] As a further improvement of the technical solution, the bottom of the fixing block is connected to an external air supply device, and the outer ring of the top of the vertical pole beyond the bottom of the inverted vertebral body is provided with an air hole, and the interior of the vertical pole is provided with a pressure relief valve.

[0010] As a further improvement of the technical solution, the vertical rod is coaxially connected to a limit plate, the limit plate is slidably connected to the bottom of the mold mechanism, the upper end of the second spring sleeved on the vertical rod is against the limit plate, and the lower end is against the bracket slidably connected to the vertical rod, and the bracket is fixedly connected to the bottom of the mold mechanism.

[0011] As a further improvement of the technical solution, the arc-shaped protective plates on both sides are fitted with side baffles, the arc-shaped protective plates are slidably connected to the bottom of the mold mechanism, the bottom of the arc-shaped protective plates is fixedly connected to the support, the support is rotatably connected to the top rod, and an air storage chamber and a water storage chamber are formed on both sides of the arc-shaped plates arranged inside the arc-shaped protective plates, and pressure relief valves are arranged in the air storage chamber and the water storage chamber.

[0012] As a further improvement of the present technical solution, the water inlet arranged on the outside of the arc-shaped protective plate is connected to the water storage chamber, a nozzle is arranged at the end of the water storage chamber, the pressure relief valve in the water storage chamber is close to the nozzle, the filter plate fixedly connected to the inner side of the arc-shaped protective plate is connected to the air storage chamber, and the water inlet is provided with a one-way valve.

[0013] As a further improvement of the present technical solution, a sliding rod is provided in the cavity opened in the side baffle plate, a first spring is sleeved on the sliding rod, and two ends of the first spring are respectively fixedly connected to the sliding block and the inner wall of the cavity, and the sliding block is fixedly connected to the clamping protective plate, and the clamping protective plates on both sides wrap the bottom and the outside of the stamping part when they are closed.

[0014] As a further improvement of the present technical solution, the auxiliary part includes an outer auxiliary plug and an inner auxiliary plug, and the outer auxiliary plug and the inner auxiliary plug are respectively socketed with the water storage cavity and the air storage cavity, and the outer auxiliary plug and the inner auxiliary plug are fixedly connected to the fixing seat at the bottom, and the fixing seat is fixed to the bottom of the mold mechanism.

[0015] As a further improvement of the technical solution, the bottom side wall of the arc-shaped protective plate is provided with inner and outer arc-shaped grooves, and the arc-shaped grooves are slidably connected to the fixed seat. When the arc-shaped protective plate is contracted to the maximum displacement, the arc-shaped grooves are immersed in the bottom of the mold mechanism.

[0016] The second object of the invention is to provide a method for using a precision stamping die, comprising the following steps:

[0017] S1. While ejecting the stamped part, the ejector guides the airflow so that the airflow cleans the impurities on the upper edge of the mold mechanism;

[0018] S2. The ejector moves upward and drives the arc-shaped protective plates on both sides to shrink. The arc-shaped protective plates cooperate with the side baffles to protect the splashing impurities and prevent the splashing of impurities;

[0019] S3. Negative pressure is formed inside the arc-shaped protective plate to adsorb splashed impurities on the filter plate. When the arc-shaped protective plate moves in the opposite direction, the water in the arc-shaped protective plate is sprayed out in cooperation with the auxiliary part, thereby washing the impurities attached to the filter plate, and the washed impurities fall into the collection box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In this precision stamping die, the impurities on the upper edge of the die mechanism are cleaned by air flow to prevent them from accumulating on the upper edge and falling into the die, which will affect the quality of the stamped parts. Then, the side baffles and arc-shaped protective plates are used to protect the splashing impurities. The internal auxiliary plug is used to make the negative pressure in the air storage cavity absorb the splashing impurities to prevent the impurities from polluting the surrounding environment. It will also cause the impurities to adhere to the surface of the stamped parts and affect their use.

[0022] 2. In the precision stamping die, when the stamping part is completely ejected, the arc-shaped protective plate is used to push the clamping protective plate to move toward the stamping part. Under the protection of the clamping protective plates on both sides, impurities are prevented from adhering to the surface of the stamping part and affecting its use. In addition, the clamping protective plates on both sides can also guide the impurities sprayed from the side baffles on both sides to the filter plate when the airflow is ejected, thereby ensuring that the impurities are adsorbed on the filter plate and preventing the impurities from splashing.

[0023] 3. In the precision stamping die, during the expansion of the arc-shaped protective plate, the water in the water storage chamber is sprayed out from the nozzle using an external auxiliary plug. The sprayed water washes the impurities attached to the filter plate to prevent excessive adhesion of impurities to the filter plate, thereby reducing the air permeability of the filter plate and reducing the effect of adsorbing splashing impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a front view of the overall structure of the present invention;

[0026] Figure 3 It is a right side view of the cutaway structure of the mold mechanism of the present invention;

[0027] Figure 4 A top view of a partially cutaway structure of a side baffle of the present invention;

[0028] Figure 5 It is a schematic diagram of the explosion structure of the stamping part, the clamping protection plate and the inverted vertebral body of the present invention;

[0029] Figure 6 It is a left side view of the cross-section structure of the vertical pole of the present invention;

[0030] Figure 7 It is a right view of the ejector rod ejection and filter plate backwashing structure of the present invention;

[0031] Figure 8 It is a right view of the arc-shaped protection plate and the auxiliary explosion structure of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 100, bottom plate; 101, stamping mechanism; 102, mold mechanism; 103, water inlet; 104, collection box;

[0034] 110, side baffle; 111, slide bar; 112, first spring;

[0035] 120. Clamping protective plate;

[0036] 201, arc groove;

[0037] 210, arc-shaped protective plate; 220, filter plate; 230, nozzle;

[0038] 300, ejector; 301, vertical rod; 302, second spring; 303, limit plate;

[0039] 310, inverted vertebra; 320, top rod;

[0040] 400, auxiliary part; 401, fixed seat;

[0041] 410, external auxiliary plug; 420, internal auxiliary plug. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] like Figure 1-Figure 3As shown, a precision stamping die is provided, including a base plate 100, a die mechanism 102 is arranged on the upper surface of the base plate 100, a stamping mechanism 101 used in conjunction with the die mechanism 102 is arranged above the die mechanism 102, side baffles 110 are arranged on both sides of the die mechanism 102, and an ejection portion 300 for ejecting the stamped parts is arranged in the middle of the die mechanism 102. When the ejection portion 300 moves upward, on the one hand, the stamped parts can be ejected upward, and after ejection, the ejection portion 300 is used to guide the airflow to clean the impurities around the upper surface of the die mechanism 102, and on the other hand, the ejection portion 300 is used to push the arc protection plates 210 symmetrically arranged between the side baffles 110 on both sides to shrink inward, and the arc protection plates 210 on both sides are used to protect the splashing impurities and prevent the impurities from splashing to the outside.

[0046] In order to collect the splashing impurities and prevent them from falling into the die, a filter plate 220 is provided on the inner side of the arc-shaped protective plate 210. The arc-shaped protective plate 210 cooperates with the auxiliary part 400 provided at the bottom of the mold mechanism 102 to form a negative pressure inside the arc-shaped protective plate 210, thereby limiting the impurities on one side of the filter plate 220, and spraying out the water inside the arc-shaped protective plate 210 when the arc-shaped protective plate 210 rotates in the reverse direction, so as to flush the impurities attached to the filter plate 220. At the same time, the compressed gas in the arc-shaped protective plate 210 will also flush the filter plate 220 in the reverse direction. Finally, the impurities fall into the collection box 104 provided on the inner side of the arc-shaped protective plate 210.

[0047] It can be seen from this that when cleaning impurities on the upper edge of the mold mechanism 102, the ejector portion 300 is used to guide the airflow to spray toward the upper edge of the mold mechanism 102 when the stamping part is ejected, so that the impurities on the upper edge are separated from the mold mechanism 102, and then the arc-shaped protective plate 210 is used to protect the splashing impurities, thereby preventing the impurities from splashing.

[0048] Therefore, based on the above structure, Figure 5 and Figure 6 The structure of the ejector 300 is further disclosed. The ejector 300 includes an inverted cone 310 and a push rod 320. The bottom of the inverted cone 310 is coaxially connected to the vertical rod 301. The bottom of the vertical rod 301 is fixedly connected to a fixed block. Both sides of the fixed block are rotatably connected to the ejector 320. On the other hand, the bottom of the fixed block is connected to the outer air supply device, and the top of the vertical rod 301 is provided with an air hole on the outer ring beyond the bottom of the inverted cone 310, and the inside of the vertical rod 301 is provided with a pressure relief valve. In this way, combined with Figure 3 As shown, after the stamping part is ejected, the air supply device can be used to supply air to the vertical rod 301, so that the airflow can be guided by the inverted vertebral body 310 to clean the impurities attached to the upper edge of the mold mechanism 102, thereby separating the attached impurities from the mold mechanism 102, preventing excessive impurities around the upper edge from falling into it during stamping and affecting the quality of the stamping part.

[0049] It should be noted that when the punching mechanism 101 is completely matched with the die, the inverted cone 310 is completely immersed in the mold mechanism 102, and the top of the inverted cone 310 is flush with the bottom wall of the die.

[0050] In the above process, in order to automatically eject the stamped parts for easy access, the vertical rod 301 is coaxially connected to the limit plate 303, the limit plate 303 is slidably connected to the bottom of the mold mechanism 102, the upper end of the second spring 302 sleeved on the vertical rod 301 abuts against the limit plate 303, and the lower end abuts against the bracket slidably connected to the vertical rod 301, and the bracket is fixedly connected to the bottom of the mold mechanism 102. As the inverted vertebra 310 moves downward, the limit plate 303 continuously squeezes the second spring 302. When the stamping is completed, the elastic potential energy of the second spring 302 is used to push the limit plate 303 upward, so that the inverted vertebra 310 ejects the stamped parts above, so as to facilitate workers to take them.

[0051] It should be noted that during the rebound process of the second spring 302 , the elastic resistance of the second spring 302 overcomes the gravity of the stamping part and the resistance encountered when the arc-shaped protective plate 210 needs to be pushed out.

[0052] Considering that after the stamping part is ejected, in order to ensure that the airflow is ejected in a horizontal direction (i.e., ejected in parallel with the upper edge of the mold mechanism 102), the above structure is combined with Figure 3 As shown, when the stamping part is completely ejected by the inverted vertebra 310, the direction of the airflow guided by the inverted vertebra 310 is flush with the upper edge of the mold mechanism 102, and then the pressure relief valve in the vertical rod 301 is opened, and the ejected airflow blows out the impurities on the upper edge of the mold mechanism 102, thereby cleaning the impurities on the upper edge of the mold mechanism 102 and preventing the impurities from falling into the die and affecting the quality of the stamping part.

[0053] Therefore, during the downward movement of the vertical pole 301, the arc-shaped protective plates 210 on both sides also expand under the pull of the top rod 320, and when the elastic potential energy of the second spring 302 is released, the arc-shaped protective plates 210 on both sides contract inward, thereby realizing the contraction and expansion of the arc-shaped protective plates 210, thereby protecting the splashing impurities when the arc-shaped protective plates 210 contract.

[0054] Combine the following Figure 7As shown, the arc-shaped protective plates 210 on both sides fit the side baffles 110, the arc-shaped protective plates 210 are slidably connected to the bottom of the mold mechanism 102, the bottom of the arc-shaped protective plates 210 is fixedly connected to the support, the support is rotatably connected to the top rod 320, and the two sides of the arc-shaped plates arranged inside the arc-shaped protective plates 210 form an air storage chamber and a water storage chamber, and a pressure relief valve is arranged in the air storage chamber and the water storage chamber. Secondly, the water inlet 103 arranged on the outside of the arc-shaped protective plates 210 is connected to the water storage chamber, and a nozzle 230 is arranged at the end of the water storage chamber. The pressure relief valve in the water storage chamber is close to the nozzle 230, and the filter plate 220 fixedly connected to the inside of the arc-shaped protective plates 210 is connected to the air storage chamber, and a one-way valve is arranged at the water inlet 103. In this way, when protecting against splashing impurities, the arc-shaped protective plates 210 on both sides are used to shrink inward, and cooperate with the side baffles 110 to limit the splashing impurities, thereby preventing the impurities from splashing everywhere and affecting the surrounding environment.

[0055] However, after the impurities are ejected, the splashing impurities not only affect the surrounding environment, but also easily adhere to the surface of the stamping parts. Therefore, when using the stamping parts, the surface must still be cleaned, which affects the subsequent use.

[0056] In order to prevent the splashing impurities from adhering to the outside of the stamping parts, on the basis of the above structure, combined with Figure 4 and Figure 5 As shown, a slide bar 111 is provided in the cavity opened in the side baffle 110, a first spring 112 is sleeved on the slide bar 111, and the two ends of the first spring 112 are respectively fixedly connected to the slider and the inner wall of the cavity, and the slider is fixedly connected to the clamping protection plate 120. When the clamping protection plates 120 on both sides are closed, the bottom and the outside of the stamping part are wrapped. In this way, the clamping protection plates 120 are used to prevent splashing impurities from adhering to the stamping part, thereby playing a good protective role.

[0057] It should be noted that: when the arc-shaped protective plates 210 on both sides shrink inward, the arc-shaped protective plates 210 push the clamping protective plates 120 to move inward. When the arc-shaped protective plates 210 on both sides expand, under the elastic action of the first spring 112, the first spring 112 pulls the slider to move the clamping protective plates 120 outward so as to leave enough space for another stamping operation.

[0058] The above is Example 1 of the present invention. Considering that impurities splash around, the clamping protection plate 120 only protects the stamping parts. In order to better limit the splashing impurities, another implementation method of the present invention for limiting impurities is shown below. Please combine Figure 7 and Figure 8 Example 2 is shown.

[0059] First, during the contraction process of the arc-shaped protective plate 210, the auxiliary part 400 is used to form a negative pressure in the air storage chamber inside the arc-shaped protective plate 210, and impurities are attached to one side of the filter plate 220, thereby preventing the impurities from splashing around, and when the arc-shaped protective plate 210 rotates in the opposite direction, the auxiliary part 400 is used to spray out the water in the water storage chamber inside the arc-shaped protective plate 210, and the water suppresses the sprayed impurities, thereby preventing the impurities from splashing into the mold mechanism 102 and affecting the stamping.

[0060] Therefore, the structure of the auxiliary part 400 is disclosed below. The auxiliary part 400 includes an outer auxiliary plug 410 and an inner auxiliary plug 420. The outer auxiliary plug 410 and the inner auxiliary plug 420 are respectively sleeved with the water storage cavity and the air storage cavity. The outer auxiliary plug 410 and the inner auxiliary plug 420 are fixedly connected to the fixing seat 401 at the bottom, and the fixing seat 401 is fixed to the bottom of the mold mechanism 102. On the other hand, the bottom side wall of the arc-shaped protective plate 210 is provided with inner and outer arc-shaped grooves 201. The arc-shaped grooves 201 are slidably connected to the fixing seat 401. When the arc-shaped protective plate 210 is retracted to the maximum displacement, the arc-shaped grooves 201 are immersed in the bottom of the mold mechanism 102. In this way, when the arc-shaped protective plate 210 is retracted, the inner auxiliary plug 420 can be used to form a negative pressure in the air storage cavity, and while the air flow is ejected to clean the impurities, the pressure relief valve in the air storage cavity is opened, and the impurities are adsorbed on one side of the filter plate 220 by the pressure difference, thereby preventing the impurities from splashing around and keeping the surrounding environment healthy.

[0061] In order to prevent excessive adsorption of impurities on the filter plate 220 and affect the adsorption effect of impurities for a long time, during the expansion of the arc-shaped protective plate 210, the external auxiliary plug 410 sucks water into the water storage chamber (during this process, the pressure relief valve in the water storage chamber is in a closed state close to the nozzle 230, and no gas will enter the water storage chamber from the nozzle 230), and during the contraction of the arc-shaped protective plate 210, the reverse rotation of the arc-shaped protective plate 210 is utilized to press out the water in the water storage chamber (through the action of the one-way valve, water is prevented from being discharged from the water inlet 103), and the water sprayed from the nozzle 230 flushes the impurities attached to the filter plate 220 to prevent the impurities from clogging the filter plate 220 and affecting its adsorption of impurities.

[0062] The second object of the present invention is to provide a method for using a precision stamping die based on the contents of Example 1 and Example 2, comprising the following method steps:

[0063] S1. While ejecting the stamped part by the ejector 300, the ejector 300 guides the airflow so that the airflow cleans the impurities on the upper edge of the mold mechanism 102;

[0064] S2, the ejection part 300 moves upward and drives the arc-shaped protection plates 210 on both sides to shrink, and the arc-shaped protection plates 210 cooperate with the side baffles 110 to protect the splashing impurities and prevent the impurities from splashing;

[0065] S3. Negative pressure is formed inside the arc-shaped protective plate 210 to adsorb splashed impurities on the filter plate 220. When the arc-shaped protective plate 210 moves in the opposite direction, the auxiliary part 400 is cooperated to spray water in the arc-shaped protective plate 210, thereby flushing impurities attached to the filter plate 220, and the flushed impurities fall into the collection box 104.

[0066] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precision stamping die, comprising a base plate (100), a die mechanism (102) being arranged on the upper surface of the base plate (100), and a stamping mechanism (101) for use with the die mechanism (102) being arranged above the die mechanism (102), characterized in that: Side baffles (110) are arranged on both sides of the mold mechanism (102), and an ejection portion (300) for ejecting a stamped part is arranged in the middle of the mold mechanism (102). The ejection portion (300) moves upward and guides airflow to clean impurities around the upper surface of the mold mechanism (102). The ejection portion (300) pushes the arc-shaped protective plates (210) symmetrically arranged between the side baffles (110) on both sides to retract inward. The arc-shaped protective plates (210) on both sides are used to prevent splashing. The arc-shaped protective plate (210) is provided with a filter plate (220) on the inner side thereof, the arc-shaped protective plate (210) cooperates with an auxiliary part (400) provided at the bottom of the mold mechanism (102) to form a negative pressure inside the arc-shaped protective plate (210), and the arc-shaped protective plate (210) rotates in the opposite direction to spray out water inside the arc-shaped protective plate (210) so as to flush the impurities attached to the filter plate (220), and a collection box (104) is provided on the inner side of the arc-shaped protective plate (210); The water inlet (103) arranged on the outside of the arc-shaped protective plate (210) is connected to the water storage chamber, a nozzle (230) is arranged at the end of the water storage chamber, a pressure relief valve in the water storage chamber is close to the nozzle (230), a filter plate (220) fixedly connected to the inside of the arc-shaped protective plate (210) is connected to the air storage chamber, a one-way valve is arranged on the water inlet (103), and an air storage chamber and a water storage chamber are formed on both sides of the arc-shaped plate arranged inside the arc-shaped protective plate (210); The auxiliary part (400) comprises an outer auxiliary plug (410) and an inner auxiliary plug (420), wherein the outer auxiliary plug (410) and the inner auxiliary plug (420) are respectively sleeved and matched with the water storage cavity and the air storage cavity, and the outer auxiliary plug (410) and the inner auxiliary plug (420) are fixedly connected to a fixing seat (401) at the bottom, and the fixing seat (401) is fixed to the bottom of the mold mechanism (102).

2. The precision stamping die according to claim 1, characterized in that: The ejection portion (300) comprises an inverted vertebral body (310) and an ejector rod (320); the bottom of the inverted vertebral body (310) is coaxially connected to a vertical rod (301); the bottom of the vertical rod (301) is fixedly connected to a fixing block; and both sides of the fixing block are rotatably connected to the ejector rod (320).

3. The precision stamping die according to claim 2, characterized in that: The bottom of the fixing block is connected to an external air supply device, and an air hole is provided on the outer ring of the top of the vertical rod (301) beyond the bottom of the inverted vertebral body (310), and a pressure relief valve is provided inside the vertical rod (301).

4. The precision stamping die according to claim 2, characterized in that: The vertical rod (301) is coaxially connected to a limiting plate (303), the limiting plate (303) is slidably connected to the bottom of the mold mechanism (102), the upper end of a second spring (302) sleeved on the vertical rod (301) abuts against the limiting plate (303), and the lower end abuts against a bracket slidably connected to the vertical rod (301), and the bracket is fixedly connected to the bottom of the mold mechanism (102).

5. The precision stamping die according to claim 2, characterized in that: The arc-shaped protection plates (210) on both sides are fitted with the side baffles (110), the arc-shaped protection plates (210) are slidably connected to the bottom of the mold mechanism (102), and the bottom of the arc-shaped protection plates (210) is fixedly connected to a support, and the support is rotatably connected to the top rod (320), and pressure relief valves are provided in the air storage chamber and the water storage chamber.

6. The precision stamping die according to claim 1, characterized in that: A slide bar (111) is provided in a cavity opened in the side baffle (110), a first spring (112) is sleeved on the slide bar (111), and two ends of the first spring (112) are respectively fixedly connected to the slide bar and the inner wall of the cavity, and the slide bar is fixedly connected to a clamping protection plate (120), and the clamping protection plates (120) on both sides wrap the bottom and the outside of the stamping part when they are closed.

7. The precision stamping die according to claim 1, characterized in that: The bottom side wall of the arc-shaped protection plate (210) is provided with inner and outer arc-shaped grooves (201), the arc-shaped grooves (201) are slidably connected to the fixing seat (401), and when the arc-shaped protection plate (210) is contracted to the maximum displacement, the arc-shaped grooves (201) are immersed in the bottom of the mold mechanism (102).

8. A method for operating the precision stamping die according to claim 1, characterized in that: The method comprises the following steps: S1. While the ejector (300) is ejecting the stamped part, the ejector (300) guides the airflow so that the airflow cleans impurities on the upper edge of the mold mechanism (102); S2, the ejection portion (300) moves upward and drives the arc-shaped protection plates (210) on both sides to contract, and the arc-shaped protection plates (210) cooperate with the side baffles (110) to protect the splashing impurities and prevent the impurities from splashing; S3. Negative pressure is formed inside the arc-shaped protection plate (210) so that the splashed impurities are adsorbed on the filter plate (220). When the arc-shaped protection plate (210) moves in the reverse direction, the auxiliary part (400) is used to spray water in the arc-shaped protection plate (210), thereby flushing the impurities attached to the filter plate (220). The flushed impurities fall into the collection box (104).

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