Powder metallurgy forming die

Abstract

The invention relates to the technical field of powder metallurgy, and discloses a powder metallurgy forming die which comprises a machining table, a plurality of baffles are arranged on the top face of the machining table, a power box is arranged on the top face of the machining table and located between the two baffles, a middle die is arranged on the inner side face of the machining table, and a discharging box is arranged on the top face of the machining table and located on the left side of the power box. An upper die punch is arranged on the bottom face of the power box, a maintenance unit is arranged on the outer side face of the upper die punch and comprises a fixing ring arranged on the outer side face of the upper die punch, the fixing ring is located below the power box, multiple sets of power columns are arranged on the inner side face of the fixing ring, and first springs are arranged on the top faces of the power columns. The die has the beneficial effects that the lubricating assembly drives the liquid spraying assembly structure to rotate around the upper die punch by one circle, a lubricating agent is evenly sprayed to the surface of the upper die punch, powder is separated from the surface of the upper die punch in the process that the rubbing assembly structure surrounds the upper die punch by one circle, the whole die is protected, and the service life of the die is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of powder metallurgy, and in particular to a powder metallurgy forming die. Background Art

[0002] In the powder metallurgy process, the mold determines the shape and size of the final product, ensuring that the powder can be pressed into the desired shape. The design and manufacturing quality of the mold directly affect the production efficiency. The right mold can improve the pressing speed and product quality. The precision and surface quality of the mold have a great influence on the quality of the product, which can reduce defects and improve product consistency.

[0003] In the patent with application number 202311032346.5, a powder metallurgy forming mold includes a mold body, and a lubricant coating device is provided at the upper die punch of the mold body; the lubricant coating device includes a coating belt, a driving module, and a lubricant spraying module. The coating belt is annular and is sleeved on the upper die punch. The inner surface of the coating belt can contact the outer wall of the upper die punch, and the lubricant spraying module is arranged on the inner side of the coating belt. The disadvantages proposed are that the structure of fitting the lubricating liquid with the upper die punch through the coating belt will drive the lubricating liquid to move on the surface of the upper die punch during the movement of the coating belt, and move with the movement of the lubricating belt, thereby resulting in uneven coating of the lubricating liquid, and it is easy to cause the contact between the upper die punch and the middle die to lack lubrication during use, resulting in increased friction, and the lack of lubrication during the separation of the metal parts from the middle die can easily cause damage to the metal parts. Summary of the invention

[0004] The present invention is proposed in view of the above-mentioned problems of the powder metallurgy forming die.

[0005] Therefore, the purpose of the present invention is to provide a powder metallurgy forming die, which is used to solve the problem of a structure in which the lubricating liquid is fitted to the upper die punch through a coating tape. During the movement of the coating tape, the lubricating liquid will be driven to move on the surface of the upper die punch and move along with the movement of the lubricating tape, thereby causing uneven coating of the lubricating liquid, and easily leading to lack of lubrication in contact with the middle die during use, resulting in increased friction, and lack of lubrication in the process of separation of the metal parts from the middle die, which easily leads to damage to the metal parts.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A powder metallurgy forming die, comprising: a processing table, a plurality of baffles are arranged on the top surface of the processing table, a power box is arranged on the top surface of the processing table, and the power box is located between two baffles, a middle die is arranged on the inner side surface of the processing table, a material box is arranged on the top surface of the processing table, and the material box is located on the left side of the power box, an upper die punch is arranged on the bottom surface of the power box, and a maintenance unit is arranged on the outer side surface of the upper die punch;

[0007] The maintenance unit includes a fixing ring arranged on the outer side surface of the upper die punch, and the fixing ring is located below the power box, a plurality of groups of power columns are arranged on the inner side surface of the fixing ring, a first spring is arranged on the top surface of the power column, a lubrication assembly is arranged on the outer side surface of the left power column, a liquid spray assembly is arranged on the bottom surface of the lubrication assembly, a scratch assembly is arranged on the outer side surface of the right power column, and a cleaning assembly is arranged on the bottom surface of the scratch assembly.

[0008] As a preferred scheme of a powder metallurgy forming mold described in the present invention, the lubrication assembly includes a first fixed curved plate arranged on the outer side surface of the left power column, a fixed column is arranged on the top surface of the first fixed curved plate, a second spring is arranged on the inner bottom surface of the fixed column, a first sliding shaft is arranged on the side of the fixed column away from the first fixed curved plate, a push plate is arranged on the top surface of the first sliding shaft, a liquid storage sleeve is arranged on the top surface of the push plate, and the liquid storage sleeve is fixedly connected to the spray assembly, a storage box is arranged on the top surface of the liquid storage sleeve, a first gear is arranged on the outer side surface of the fixed ring and the first gear is rotatably connected to the fixed ring, a second gear is arranged on the inner side surface of the fixed ring, and the first gear and the second gear are meshed with each other.

[0009] As a preferred solution of a powder metallurgy forming mold described in the present invention, the liquid spraying assembly includes a telescopic tube arranged on the bottom surface of the liquid storage sleeve, a fixed cylinder is arranged on the outer side of the telescopic tube, and the fixed cylinder is located on the bottom surface of the second gear, a spraying pipe is arranged at one end of the telescopic tube away from the liquid storage sleeve, and a third spring is arranged between the top surface of the spraying pipe and the fixed cylinder.

[0010] As a preferred solution of a powder metallurgy forming mold described in the present invention, the scratch assembly includes a third gear arranged on the outer side surface of the right power column, a fourth gear is arranged on the inner side surface of the fixing ring, and the fourth gear and the third gear are meshed with each other, a fixing plate is arranged on the bottom surface of the fourth gear, a cleaning sleeve is arranged on the bottom surface of the cleaning sleeve, and a fifth spring is arranged on the bottom surface of the cleaning sleeve.

[0011] As a preferred solution of the powder metallurgy forming die of the present invention, a fifth spring is arranged between the cleaning sleeve and the rubber plate, and a scraper is arranged on the side of the rubber plate close to the upper die punch.

[0012] As a preferred solution of a powder metallurgy forming mold described in the present invention, the cleaning component includes a second fixed curved plate arranged on the outer side surface of the right power column, and the second fixed curved plate is located below the third gear, a second sliding shaft is arranged on the inner side surface of the second fixed curved plate, a fourth spring is arranged between the second fixed curved plate and the second sliding shaft, a pressure plate is arranged on the top surface of the second sliding shaft, an air storage bag is arranged on the bottom surface of the pressure plate, a connecting pipe is arranged on the bottom surface of the air storage bag, and an injection pipe is arranged on the bottom surface of the connecting pipe.

[0013] As a preferred solution of the powder metallurgy forming die described in the present invention, an air inlet pipe is arranged on the top surface of the air storage bag, a filter box is arranged at one end of the air inlet pipe away from the air storage bag, and a filter plate is arranged on the inner side of the filter box.

[0014] The beneficial effects of the present invention are as follows: when the processing table cooperates with the fixed ring to move downward, it cooperates with the lubrication component structure, so that the lubrication component drives the spray component structure to rotate around the upper die punch for one circle, and the lubricant is evenly sprayed on the surface of the upper die punch. After the upper die punch processes the powder into shape, the right fixed ring drives the scratch component structure to move under the action of the first spring. The scratch component structure separates the powder from the surface of the upper die punch during the process of surrounding the upper die punch for one circle. When the scratch component structure rotates, it cooperates with the cleaning component structure to clean the upper die punch, thereby preventing the powder from adhering to the surface of the upper die punch and accumulating, causing damage to the contact position between the upper die punch and the middle die, thereby protecting the entire mold and improving the service life of the mold. The lubricant on the surface of the upper die punch is smeared on the contact between the middle die and the middle die, thereby increasing the speed at which the middle die pushes the metal part after processing, reducing the friction between the metal part and the inner side of the middle die, thereby improving the smoothness of the structure and improving the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a powder metallurgy forming die of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of a right side view of a powder metallurgy forming die of the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0019] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point B.

[0020] Figure 5 The present invention is a schematic diagram of the combined structure of a lubrication component and a cleaning component of a powder metallurgy forming die.

[0021] Figure 6 The present invention is a schematic diagram of the structure of a maintenance unit of a powder metallurgy forming die.

[0022] Figure numerals: 1, processing table; 101, baffle; 102, power box; 103, material box; 104, middle die; 105, upper die punch; 200, maintenance unit; 201, fixed ring; 202, power column; 203, first spring; 204, lubrication assembly; 2041, first fixed curved plate; 2042, fixed column; 2043, second spring; 2044, first sliding shaft; 2045, push plate; 2046, liquid storage sleeve; 2047, storage box; 2048, first gear; 2049, second gear; 205, spray assembly; 2051, telescopic tube; 2052 , fixed cylinder; 2053, third spring; 2054, spray pipe; 206, cleaning assembly; 2061, second fixed curved plate; 2062, second slide shaft; 2063, fourth spring; 2064, pressure plate; 2065, air storage bag; 2066, air intake pipe; 2067, filter box; 2068, connecting pipe; 2069, spray pipe; 20610, filter plate; 207, scratch assembly; 2071, third gear; 2072, fourth gear; 2073, fixed plate; 2074, cleaning sleeve; 2075, fifth spring; 2076, rubber plate; 2077, scraper. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] Reference Figure 1-6, is an embodiment of the present invention, providing a powder metallurgy forming die, comprising: a processing table 1, a plurality of baffles 101 are arranged on the top surface of the processing table 1, a power box 102 is arranged on the top surface of the processing table 1, and the power box 102 is located between the two baffles 101, a middle die 104 is arranged on the inner side surface of the processing table 1, a blanking box 103 is arranged on the top surface of the processing table 1, and the blanking box 103 is located on the left side of the power box 102, an upper die punch 105 is arranged on the bottom surface of the power box 102, and a curing unit 200 is arranged on the outer side surface of the upper die punch 105;

[0028] The maintenance unit 200 includes a fixing ring 201 arranged on the outer side of the upper die punch 105, and the fixing ring 201 is located below the power box 102, and multiple groups of power columns 202 are arranged on the inner side of the fixing ring 201, and the top surface of the power column 202 is provided with a first spring 203, and the outer side of the left power column 202 is provided with a lubrication component 204, and the bottom surface of the lubrication component 204 is provided with a liquid spray component 205, and the outer side of the right power column 202 is provided with a scratch component 207, and the bottom surface of the scratch component 207 is provided with a cleaning component 206;

[0029] Specifically, when the device is used, the powder is pushed into the middle die 104 through the lower material box 103, and then the upper die punch 105 is driven by the power box 102 to process the powder and cooperate with the middle die 104 to form the powder. Then, when the lower material box 103 is pushed into the middle die 104 next time, the formed metal part is pushed to the right. When the power box 102 drives the upper die punch 105 to move downward, the upper die punch 105 is fixed by the fixing ring 201, so that the power column 202 first contacts the processing table 1. When the processing table 1 cooperates with the fixing ring 201 to move downward, it cooperates with the lubrication component 204 structure, so that the lubrication component 204 drives the spray component 205 structure to surround the upper die punch 1. 05 rotates one circle to evenly spray the lubricant on the surface of the upper die punch 105. After the upper die punch 105 is processed into powder, the right fixing ring 201 drives the scratch component 207 structure to move under the action of the first spring 203. The scratch component 207 structure separates the powder from the surface of the upper die punch 105 during one circle around the upper die punch 105. When the scratch component 207 structure rotates, the cleaning component 206 structure is used to clean the upper die punch 105, thereby preventing the powder from adhering to the surface of the upper die punch 105 and accumulating, causing damage to the contact position between the upper die punch 105 and the middle die 104, thereby protecting the mold as a whole and increasing the service life of the mold.

[0030] Reference Figure 2-3 and Figure 5-6As shown, the lubrication assembly 204 includes a first fixed curved plate 2041 arranged on the outer side of the left power column 202, a fixed column 2042 is arranged on the top surface of the first fixed curved plate 2041, a second spring 2043 is arranged on the inner bottom surface of the fixed column 2042, a first sliding shaft 2044 is arranged on the side of the fixed column 2042 away from the first fixed curved plate 2041, a push plate 2045 is arranged on the top surface of the first sliding shaft 2044, a liquid storage sleeve 2046 is arranged on the top surface of the push plate 2045, and the liquid storage sleeve 2046 is fixedly connected to the liquid spraying assembly 205, and a storage box 2047 is arranged on the top surface of the liquid storage sleeve 2046, a first gear 2048 is arranged on the outer side surface of the fixed ring 201, and the first gear 2048 is rotatably connected to the fixed ring 201, and a second gear 2049 is arranged on the inner side surface of the fixed ring 201, and the first gear 2048 and the second gear 2049 are meshed with each other;

[0031] Specifically, when the lubrication component 204 structure is used, the bottom surface of the power column 202 contacts the processing table 1, and the processing table 1 stops to apply pressure to the first spring 203. The power column 202 drives the ratchet inside the first gear 2048 to rotate through the surface thread, and then the ratchet drives the first gear 2048 to rotate. The first gear 2048 drives the second gear 2049 to rotate through gear meshing. The second gear 2049 drives the liquid spraying component 205 structure to surround the surface of the upper die punch 105. The first fixed curved plate 2041 pushes the first sliding shaft 2044 through the second spring 2043, and the first sliding shaft 2044 pushes the push plate 2045, and the push plate 2045 pushes the liquid storage sleeve 204 6. When the push plate 2045 pushes the liquid storage sleeve 2046, the lubricating liquid accumulated in the liquid storage sleeve 2046 is sprayed out through the spray assembly 205 to contact the surface of the upper die punch 105, and is sprayed out through the upper die punch 105 in an atomized form, so that the sprayed lubricating liquid has a wider contact range with the upper die punch 105, and the liquid sprayed through the spray head will not cause a small range of liquid aggregation due to contact with foreign objects, so that the lubricating liquid is evenly attached to the surface processed by the upper die punch 105, thereby increasing the range of lubrication of the surface of the upper die punch 105, and at the same time, the liquid storage sleeve 2046 and the storage box 2047 or the liquid storage sleeve 2046 and the spray assembly 205 are connected by a one-way valve.

[0032] Reference Figure 2-3 As shown, the liquid spraying assembly 205 includes a telescopic tube 2051 disposed on the bottom surface of the liquid storage sleeve 2046, a fixed cylinder 2052 is disposed on the outer side of the telescopic tube 2051, and the fixed cylinder 2052 is located on the bottom surface of the second gear 2049, and a spraying tube 2054 is disposed at one end of the telescopic tube 2051 away from the liquid storage sleeve 2046, and a third spring 2053 is disposed between the top surface of the spraying tube 2054 and the fixed cylinder 2052;

[0033] Specifically, the second gear 2049 carries the fixed cylinder 2052 to rotate, stretching the telescopic tube 2051 structure. After the rotation is completed, the telescopic tube 2051 is reset through the cleaning component 206 structure and the length of the telescopic tube 2051 is restored and stored inside the fixed ring 201. After the upper die punch 105 moves downward to contact the powder, the spray tube 2054 squeezes the third spring 2053 upward for storage, so as not to hinder the operation of the structure. At the same time, when the spray tube 2054 is stored in the fixed cylinder 2052, the bottom surface of the fixed cylinder 2052 scratches the spray tube 2054 to keep the spray hole of the spray tube 2054 clean, thereby ensuring the normal operation of the spray assembly 205 structure. When the upper die punch 105 moves upward, the spray tube 2054 is reset under the action of the third spring 2053.

[0034] Reference Figure 2 and Figure 4-6 As shown, the scratch assembly 207 includes a third gear 2071 disposed on the outer side of the right power column 202, a fourth gear 2072 is disposed on the inner side of the fixing ring 201, and the fourth gear 2072 and the third gear 2071 are meshed with each other, a fixing plate 2073 is disposed on the bottom surface of the fourth gear 2072, a cleaning sleeve 2074 is disposed on the bottom surface of the cleaning sleeve 2074, and a fifth spring 2075 is disposed on the bottom surface of the cleaning sleeve 2074;

[0035] Specifically, when the scratching assembly 207 is used, the power column 202 structure drives the third gear 2071 and the ratchet between the power column 202 to rotate through the surface thread during the process of the upper die punch 105 moving upward, and then the ratchet drives the third gear 2071 to rotate, and the third gear 2071 drives the fourth gear 2072 to rotate through the gear meshing, and the fourth gear 2072 drives the cleaning sleeve 2074 to rotate through the fixed plate 2073, and the cleaning sleeve 2074 drives the rubber plate 2076 on the bottom to rotate to clean the surface of the processed upper die punch 105 to prevent powder from adhering to the surface of the upper die punch 105 The situation of accumulation is maintained, the surface of the upper die punch 105 is kept clean, and the lubricating component 204 structure is used in conjunction with the lubrication component 204 structure, so that the lubricating liquid sprayed by the spray component 205 structure can be fully and evenly attached to the surface of the upper die punch 105, the upper die punch 105 and the middle die 104 structure are protected, and the formed metal parts are protected. The lubricant on the surface of the upper die punch 105 is in contact with the middle die 104 and smeared, thereby increasing the speed at which the middle die 104 pushes the metal parts after processing is completed, reducing the friction between the metal parts and the inner side of the middle die 104, thereby improving the smoothness of the structure and increasing the service life of the structure.

[0036] Reference Figure 2 and Figure 4-6As shown, a fifth spring 2075 is provided between the cleaning sleeve 2074 and the rubber plate 2076, and a scraper 2077 is provided on the side of the rubber plate 2076 close to the upper die punch 105;

[0037] Specifically, the structure of the fifth spring 2075 is set. After the upper die punch 105 contacts the processing table 1, the rubber plate 2076 and the scraper 2077 are pressed into the cleaning sleeve 2074, and the rubber plate 2076 and the scraper 2077 are scratched and cleaned through the friction range between the rubber plate 2076 and the scraper 2077 and the fifth spring 2075. The width of the fifth spring 2075 is slightly larger than the rubber plate 2076, so that the scraper 2077 structure is squeezed and scratched. By setting the scraper 2077 structure to an oblique strip type, the dust can be effectively pushed to the bottom of the upper die punch 105, and the powder can be separated from the upper die punch 105, thereby keeping the surface of the upper die punch 105 smooth and reducing the damage of the powder to the structure.

[0038] Reference Figure 2 and Figure 5-6 As shown, the cleaning assembly 206 includes a second fixed curved plate 2061 arranged on the outer side of the right power column 202, and the second fixed curved plate 2061 is located below the third gear 2071, a second sliding shaft 2062 is arranged on the inner side of the second fixed curved plate 2061, a fourth spring 2063 is arranged between the second fixed curved plate 2061 and the second sliding shaft 2062, a pressing plate 2064 is arranged on the top surface of the second sliding shaft 2062, an air storage bag 2065 is arranged on the bottom surface of the pressing plate 2064, a connecting pipe 2068 is arranged on the bottom surface of the air storage bag 2065, and an air jet pipe 2069 is arranged on the bottom surface of the connecting pipe 2068;

[0039] Specifically, after the upper die punch 105 is separated from the processing table 1, it rises under the action of the power box 102, the right power column 202 remains stationary with the processing table 1 under the action of the first spring 203, and the second fixed curved plate 2061 remains stationary synchronously. The second fixed curved plate 2061 remains stationary during the downward movement of the upper die punch 105, so that the pressure plate 2064 remains stationary, and the fixed ring 201 structure moves downward with the upper die punch 105, driving the air storage bag 2065 structure to stretch. The air storage bag 2065 stretches so that the gas is continuously stored inside, and then the fourth spring 203 is in the process of the upper die punch 105 moving upward. The spring 2063 pulls the pressure plate 2064 structure to move, and the pressure plate 2064 applies pressure to the air storage bag 2065 structure, so that the gas stored in the air storage bag 2065 is discharged into the jet pipe 2069 through the connecting pipe 2068. The surface of the upper die punch 105 is cleaned by gas jet through the jet pipe 2069, and the powder that is less adhered to the surface of the upper die punch 105 is blown away from the liquid spray component 205, so as to protect the upper die punch 105 and the middle die 104 structure. By setting the nozzle of the jet pipe 2069 to be inclined, gas is sprayed in the forward direction of the second gear 2049, thereby improving the processing efficiency.

[0040] Reference Figure 2 and Figure 5-6 As shown, an air inlet pipe 2066 is disposed on the top surface of the air storage bag 2065, a filter box 2067 is disposed at one end of the air inlet pipe 2066 away from the air storage bag 2065, and a filter plate 20610 is disposed on the inner side of the filter box 2067;

[0041] Specifically, the gas stored inside the air storage bag 2065 structure is extracted from the outside through the air inlet pipe 2066 structure in cooperation with the filter box 2067 structure, and the gas entering the filter box 2067 needs to be processed through the connecting pipe 2068. By setting the connecting pipe 2068 to be inserted into the structure inside the filter box 2067, it is convenient to replace the connecting pipe 2068 structure based on the actual situation without hindering the operation of the structure, thereby improving the use efficiency of the structure.

[0042] Working principle: When using this device, the powder is pushed into the middle die 104 through the lower material box 103, and then the upper die punch 105 is driven by the power box 102 to process the powder and cooperate with the middle die 104 to form the powder. Then, when the lower material box 103 is pushed into the middle die 104 next time, the formed metal part is pushed to the right. When the power box 102 drives the upper die punch 105 to move downward, the upper die punch 105 is fixed by the fixing ring 201, so that the power column 202 first contacts the processing table 1. When the processing table 1 moves downward with the fixing ring 201, it cooperates with the lubrication component 204 structure, so that the lubrication component 204 drives the spray component 205 structure to surround the upper die punch. 105 rotates one circle to evenly spray the lubricant on the surface of the upper die punch 105. After the upper die punch 105 is processed into powder, the right fixing ring 201 drives the scratch component 207 structure to move under the action of the first spring 203. The scratch component 207 structure separates the powder from the surface of the upper die punch 105 during one circle around the upper die punch 105. When the scratch component 207 structure rotates, the cleaning component 206 structure is used to clean the upper die punch 105, thereby preventing the powder from adhering to the surface of the upper die punch 105 and accumulating, causing damage to the contact position between the upper die punch 105 and the middle die 104, thereby protecting the mold as a whole and increasing the service life of the mold.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A powder metallurgy forming die, characterized in that: include: A processing table (1), wherein a plurality of baffles (101) are arranged on the top surface of the processing table (1), a power box (102) is arranged on the top surface of the processing table (1), and the power box (102) is located between two baffles (101), a middle die (104) is arranged on the inner side surface of the processing table (1), a blanking box (103) is arranged on the top surface of the processing table (1), and the blanking box (103) is located on the left side of the power box (102), an upper die punch (105) is arranged on the bottom surface of the power box (102), and a curing unit (200) is arranged on the outer side surface of the upper die punch (105); The maintenance unit (200) comprises a fixing ring (201) arranged on the outer side surface of the upper die punch (105), and the fixing ring (201) is located below the power box (102); a plurality of power columns (202) are arranged on the inner side surface of the fixing ring (201); a first spring (203) is arranged on the top surface of the power column (202); a lubrication component (204) is arranged on the outer side surface of the left power column (202); a liquid spray component (205) is arranged on the bottom surface of the lubrication component (204); a scratch component (207) is arranged on the outer side surface of the right power column (202); and a cleaning component (206) is arranged on the bottom surface of the scratch component (207).

2. A powder metallurgy forming die according to claim 1, characterized in that: The lubrication assembly (204) comprises a first fixed curved plate (2041) arranged on the outer side of the left power column (202); a fixed column (2042) is arranged on the top surface of the first fixed curved plate (2041); a second spring (2043) is arranged on the inner bottom surface of the fixed column (2042); a first sliding shaft (2044) is arranged on the side of the fixed column (2042) away from the first fixed curved plate (2041); a push plate (2045) is arranged on the top surface of the first sliding shaft (2044); and the push plate (2045) is arranged on the top surface of the push plate (2045). 45) is provided with a liquid storage sleeve (2046) on the top surface, and the liquid storage sleeve (2046) is fixedly connected to the liquid spraying assembly (205); a storage box (2047) is provided on the top surface of the liquid storage sleeve (2046); a first gear (2048) is provided on the outer side surface of the fixing ring (201), and the first gear (2048) is rotatably connected to the fixing ring (201); a second gear (2049) is provided on the inner side surface of the fixing ring (201), and the first gear (2048) and the second gear (2049) are meshed with each other.

3. A powder metallurgy forming die according to claim 2, characterized in that: The liquid spraying assembly (205) comprises a telescopic tube (2051) arranged on the bottom surface of the liquid storage sleeve (2046); a fixed cylinder (2052) is arranged on the outer side surface of the telescopic tube (2051), and the fixed cylinder (2052) is located on the bottom surface of the second gear (2049); a spraying tube (2054) is arranged at one end of the telescopic tube (2051) away from the liquid storage sleeve (2046); and a third spring (2053) is arranged between the top surface of the spraying tube (2054) and the fixed cylinder (2052).

4. A powder metallurgy forming die according to claim 1, characterized in that: The scratch assembly (207) comprises a third gear (2071) arranged on the outer side surface of the right power column (202), a fourth gear (2072) is arranged on the inner side surface of the fixing ring (201), and the fourth gear (2072) and the third gear (2071) are meshed with each other, a fixing plate (2073) is arranged on the bottom surface of the fourth gear (2072), a cleaning sleeve (2074) is arranged on the bottom surface of the cleaning sleeve (2074), and a fifth spring (2075) is arranged on the bottom surface of the cleaning sleeve (2074).

5. A powder metallurgy forming die according to claim 4, characterized in that: A fifth spring (2075) is provided between the cleaning sleeve (2074) and the rubber plate (2076), and a scraper (2077) is provided on the side of the rubber plate (2076) close to the upper die punch (105).

6. A powder metallurgy forming die according to claim 4, characterized in that: The cleaning component (206) includes a second fixed curved plate (2061) arranged on the outer side surface of the right power column (202), and the second fixed curved plate (2061) is located below the third gear (2071); a second sliding shaft (2062) is arranged on the inner side surface of the second fixed curved plate (2061); a fourth spring (2063) is arranged between the second fixed curved plate (2061) and the second sliding shaft (2062); a pressure plate (2064) is arranged on the top surface of the second sliding shaft (2062); an air storage bag (2065) is arranged on the bottom surface of the pressure plate (2064); a connecting pipe (2068) is arranged on the bottom surface of the air storage bag (2065); and an injection pipe (2069) is arranged on the bottom surface of the connecting pipe (2068).

7. A powder metallurgy forming die according to claim 6, characterized in that: An air inlet pipe (2066) is arranged on the top surface of the air storage bag (2065), a filter box (2067) is arranged at one end of the air inlet pipe (2066) away from the air storage bag (2065), and a filter plate (20610) is arranged on the inner side of the filter box (2067).

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