An automated and efficient gear powder metallurgy forming mold

Abstract

This invention discloses an automated and efficient gear powder metallurgy molding die, relating to the field of metallurgical molding die technology. It includes a top plate with support columns fixedly installed at the four corners of its bottom surface, a hydraulic pump fixedly installed at the top of the top plate, an adjusting rod movably installed on the inner side of the top plate, and a sealing element fixedly installed on the bottom surface of the adjusting rod. A protective mechanism is provided between the support plate and the adjusting rod. A mold shell is fixedly installed at the top of the middle plate, and a mold groove is fixedly installed on the inner side of the mold shell. A sealing mechanism to prevent splashing is provided between the middle plate and the mold shell. This automated and efficient gear powder metallurgy molding die uses an elastic element to limit the position of a limiting plate, and a return spring to relieve the pressure on the limiting plate, facilitating a reduction in the stamping force during compression molding and preventing powder splashing during molding. This improves the air quality in the workshop, protects the health of personnel, and enhances the efficiency of powder metallurgy.

Description

Technical Field

[0001] This invention relates to the field of metallurgical forming mold technology, specifically to an automated and efficient gear powder metallurgy forming mold. Background Technology

[0002] Powder metallurgy gears are powder metallurgy parts commonly used in mechanical manufacturing. Through one-time forming and finishing processes, they can fully meet the dimensional accuracy requirements. By stamping the gears in automobiles, the accuracy of the tooth profile can be improved, thus facilitating the compression molding of high-quality automotive gears.

[0003] However, existing metallurgical forming molds are inconvenient to remove during use, have low production efficiency, and may be damaged if removed improperly.

[0004] To address the aforementioned deficiencies, Chinese Patent Publication No. CN213080061U discloses a molding die for powder metallurgy gears, comprising an upper fixing block and a lower fixing block. The upper fixing block has a groove on its upper edge and a rectangular groove A in the middle of its upper surface. An upper mold is engaged inside the rectangular groove A. An upper gear groove is located in the middle of the upper surface of the upper mold, and a shaft core mold tube is fixedly installed in the middle of the upper gear groove. A rounded rectangular rod is fixedly installed inside the shaft core mold tube. A retaining strip is fixedly installed on the edge of the upper surface of the lower fixing block, and a rectangular groove B is located in the middle of its upper surface. A spring extrusion chamber is located in the middle of the rectangular groove B. Through the spring and a movable ring, the gear extruded inside the lower gear groove can automatically pop upwards, greatly improving demolding efficiency and reducing wear during demolding.

[0005] Furthermore, in the prior art, Chinese patent publication number CN218192558U discloses a powder metallurgy gear forming mold, including a tray and a base. The base is provided with a square groove, and a water supply pipe is installed at the bottom of the inner wall of the square groove. The lower surface of the tray is provided with a water pipe groove. The tray is connected to the water supply pipe at the bottom of the inner wall of the square groove through the water pipe groove on the lower surface. The mold body is installed at the bottom of the inner wall of the tray, and a gear groove is provided on the mold body. Limiting holes are provided on both the tray and the base. Spring cylinders are installed on both sides of the outer wall of the base. A tension spring is installed inside the spring cylinder. A foolproof button is installed at one end of the tension spring, and a pressure plate is installed at the other end of the tension spring. The limiting post is connected to the limiting holes on the base and the tray through a gap. Through a series of structural settings, the cooling speed of gear forming can be accelerated, the working efficiency of gear forming can be improved, and the practicality is strong.

[0006] The aforementioned device utilizes springs and movable rings to facilitate the ejection of the squeeze gears during use, thereby reducing wear. However, when the metal powder is placed in the mold cavity, it is in a loose state. When subjected to pressure, some of the metal powder will overflow or splash out from the gap between the upper die and the mold cavity in order to expel the air between the particles, thus affecting the molding of the equipment. Therefore, in actual use, powder splashing may occur, resulting in molding damage. Summary of the Invention

[0007] The purpose of this invention is to provide an automated and efficient gear powder metallurgy forming mold to solve the problem of powder splashing causing molding damage mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automated and efficient gear powder metallurgy forming mold, comprising a top plate, support columns fixedly installed at the four corners of the bottom surface of the top plate, a hydraulic pump fixedly installed at the top of the top plate, an adjusting rod movably installed on the inner side of the top plate, a sealing element fixedly installed on the bottom surface of the adjusting rod, a support plate movably abutting against the outer surface of the support columns, and a protective mechanism provided between the support plate and the adjusting rod; a middle plate fixedly installed on the bottom surface of the support columns, the bottom surface of the support plate and the upper surface of the middle plate fixedly connected, a protective shell fixedly installed on the bottom surface of the middle plate, a bottom plate fixedly installed on the bottom surface of the protective shell, and a cylinder fixedly installed at the top of the bottom plate; a mold shell fixedly installed at the top of the middle plate, a mold groove fixedly installed on the inner side of the mold shell, and a sealing mechanism to prevent splashing provided between the middle plate and the mold shell.

[0009] Furthermore, the protective mechanism includes an adjusting rod, which is fixedly installed on the outer surface of the hydraulic pump. A pressing rod is movably installed on the inner side of the adjusting rod, and a gear mold is fixedly installed on the bottom surface of the pressing rod. The pressing rod and the gear mold form a lifting structure.

[0010] Furthermore, a hydraulic assembly is fixedly installed at the top of the support plate. The hydraulic assembly includes a telescopic rod, a movable block is fixedly installed on the outer surface of the telescopic rod, and a positioning block is movably installed on the inner side of the movable block.

[0011] Furthermore, the positioning block is fixedly installed on the top of the injection mold, a mold shell is fixedly installed on the outer surface of the injection mold, and a cooling mechanism is provided between the injection mold and the mold shell.

[0012] Furthermore, a positioning post is fixedly installed at the top of the base plate, a fixing plate is fixedly installed at the top of the positioning post, a buffer assembly is fixedly installed at the top of the fixing plate, and a buffer rod is movably installed on the inner side of the buffer assembly.

[0013] Furthermore, a drive assembly is movably mounted on the outer surface of the cylinder, a pressing rod is fixedly mounted on the top of the drive assembly, a baffle is fixedly mounted on the outer surface of the pressing rod, and a telescopic spring is fixedly mounted on the bottom surface of the baffle.

[0014] Furthermore, the sealing mechanism includes a limiting plate, which is fixedly installed on the outer surface of the telescopic spring. An elastic element is movably installed on the inner side of the limiting plate, and a return spring is fixedly installed on the bottom surface of the limiting plate. The limiting plate and the return spring form a telescopic structure.

[0015] Furthermore, a mold groove is fixedly installed on the inner side of the injection mold, a limiting plate is movably installed on the inner side of the mold groove, an elastic element is movably installed on the inner side of the mold groove, and the elastic element is fixedly installed on the top of the mold shell.

[0016] Furthermore, the cooling mechanism includes a circulation pipe, which is fixedly installed on the inner side of the mold shell. A water inlet is fixedly installed on the inner side of the circulation pipe, and the water inlet is fixedly installed on the outer surface of the sealing disc.

[0017] Furthermore, the sealing disc is fixedly installed on the outer surface of the flow divider, the sealing disc is fixedly installed on the outer surface of the filter assembly, and the flow divider is fixedly installed on the inner side of the filter assembly.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) The limit plate is limited by the elastic element and the return spring relieves the pressure of the limit plate, which makes it easier to reduce the punching pressure during molding, prevent powder splashing, thereby improving the air quality in the workshop, protecting the health of personnel, and enhancing the efficiency of powder metallurgy.

[0020] (2) By starting the cylinder, the cylinder drives the drive assembly to rise and fall, the drive assembly drives the extrusion rod to move, the extrusion rod drives the baffle to move, and the extrusion rod drives the telescopic spring to move. By pressing down the gear mold and pressing up the baffle, it is easy to extrude the metal powder inside the mold groove, which facilitates the compression molding of the gear model and improves the molding quality of the equipment.

[0021] (3) The water inlet facilitates connection to external water pipes, the sealing plate increases internal sealing to prevent water leakage, the diverter facilitates water separation and treatment to increase water flow speed, the filter assembly facilitates water filtration to avoid pipe blockage, and the circulation pipe circulates the internal water to facilitate absorption of the high temperature generated by the mold during compression molding, thereby accelerating the cooling speed of the gear and improving the efficiency of gear molding.

[0022] (4) By starting the hydraulic pump, the hydraulic pump drives the pressing rod to move, and the pressing rod drives the gear mold to rise and fall, which facilitates the compression molding of metal powder, improves the processing efficiency, and the sealing parts installed by the adjusting rod can protect the gear mold, avoid damage to the gear mold caused by external collision when it is not working, thereby improving the safety of the gear mold.

[0023] (5) Start the hydraulic components and drive the telescopic rod to move the movable block, so as to push the metal powder into the mold groove. The movable block is positioned by the positioning block to improve the stability of the equipment. The injection mold is fixed by the mold shell and the injection mold is fixed to the mold shell by bolts, so as to facilitate the replacement of different gear molds and facilitate the processing of the equipment.

[0024] (6) The base plate supports the positioning column, the positioning column fixes the fixed plate, the buffer component relieves the impact of compression molding, and the positioning column limits the buffer rod, thereby relieving the ground impact pressure, improving the stability of the gear mold, and facilitating the stable operation of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the plate in this invention;

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the injection mold of the present invention;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the mold shell of the present invention;

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the top plate of the present invention;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the circulation tube of the present invention;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of the movable block of the present invention;

[0032] Figure 8 This is a schematic diagram of the cross-sectional structure of the mold groove of the present invention;

[0033] Figure 9 This is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention;

[0034] Figure 10 This is a schematic cross-sectional view of the filter assembly of the present invention.

[0035] In the diagram: 1. Top plate; 2. Support column; 3. Support plate; 4. Middle plate; 5. Protective shell; 6. Bottom plate; 7. Hydraulic pump; 8. Adjusting rod; 9. Seal; 10. Pressing rod; 11. Gear mold; 12. Hydraulic assembly; 13. Telescopic rod; 14. Movable block; 15. Positioning block; 16. Injection mold; 17. Positioning column; 18. Fixed plate; 19. Buffer assembly; 20. Buffer rod; 21. Cylinder; 22. Drive assembly; 23. Mold shell; 24. Mold groove; 25. Extrusion rod; 26. Baffle plate; 27. Telescopic spring; 28. Limiting plate; 29. ​​Elastic element; 30. Return spring; 31. Circulation pipe; 32. Filter assembly; 33. Diverter; 34. Sealing plate; 35. Water inlet. Detailed Implementation

[0036] 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.

[0037] Example 1: Please refer to Figure 1 - Figure 10 The present invention provides the following technical solution: an automated and efficient gear powder metallurgy forming mold, comprising a top plate 1, support columns 2 fixedly installed at the four corners of the bottom surface of the top plate 1, a hydraulic pump 7 fixedly installed at the top of the top plate 1, an adjusting rod 8 movably installed on the inner side of the top plate 1, a sealing element 9 fixedly installed on the bottom surface of the adjusting rod 8, a support plate 3 movably abutting against the outer surface of the support columns 2, and a protective mechanism provided between the support plate 3 and the adjusting rod 8; a middle plate 4 fixedly installed on the bottom surface of the support columns 2, the bottom surface of the support plate 3 and the upper surface of the middle plate 4 fixedly connected, a protective shell 5 fixedly installed on the bottom surface of the middle plate 4, a bottom plate 6 fixedly installed on the bottom surface of the protective shell 5, a cylinder 21 fixedly installed at the top of the bottom plate 6; a mold shell 23 fixedly installed at the top of the middle plate 4, a mold groove 24 fixedly installed on the inner side of the mold shell 23, and a sealing mechanism to prevent splashing provided between the middle plate 4 and the mold shell 23.

[0038] The protective mechanism between the support plate 3 and the adjusting rod 8 improves the safety of the mold and prevents damage to the equipment from external collisions. The anti-splash sealing mechanism between the middle plate 4 and the mold shell 23 improves the internal sealing and prevents powder from splashing due to gaps during compression molding, which could damage the gear model. The cooling mechanism between the injection mold 16 and the mold shell 23 facilitates rapid cooling of the mold and improves the quality of the gear model.

[0039] Example 2: Based on Example 1, please refer to... Figure 1 - Figure 9 The mold housing 23 is also disclosed, and its specific structure is as follows: The protective mechanism includes an adjusting rod 8, which is fixedly installed on the outer surface of the hydraulic pump 7. A pressing rod 10 is movably installed on the inner side of the adjusting rod 8. A gear mold 11 is fixedly installed on the bottom surface of the pressing rod 10, and the pressing rod 10 and the gear mold 11 form a lifting structure. A hydraulic component 12 is fixedly installed on the top of the support plate 3. The hydraulic component 12 includes a telescopic rod 13. A movable block 14 is fixedly installed on the outer surface of the telescopic rod 13. A positioning block 15 is movably installed on the inner side of the movable block 14. The positioning block 15 is fixedly installed on the top of the injection mold 16. The mold housing 23 is fixedly installed on the outer surface of the injection mold 16, and a cooling mechanism is provided between the injection mold 16 and the mold housing 23. A positioning column 17 is fixedly installed on the top of the base plate 6. A fixing plate 18 is fixedly installed on the top of the positioning column 17. A buffer component 19 is fixedly installed on the top of the fixing plate 18. A buffer rod 20 is movably installed on the inner side of the buffer component 19.

[0040] By activating the hydraulic pump 7, the hydraulic pump 7 drives the pressing rod 10 to move, which in turn moves the gear mold 11 up and down. This facilitates the compression molding of the metal powder, improving processing efficiency. Furthermore, the sealing element 9 installed on the adjusting rod 8 protects the gear mold 11 from damage caused by external impacts when not in operation, thus improving its safety. Activating the hydraulic assembly 12 drives the telescopic rod 13 to move the movable block 14, facilitating the pushing of the metal powder into the mold groove 24. The fixed... Positioning block 15 positions movable block 14, improving equipment stability. It also fixes injection mold 16 through mold shell 23, and injection mold 16 is fixed to mold shell 23 with bolts, making it easy to change different molds and facilitating equipment processing. The base plate 6 supports positioning column 17, which is fixed to fixed plate 18. The buffer assembly 19 relieves the impact force of compression molding, and positioning column 17 limits buffer rod 20, thereby relieving ground impact pressure, improving mold stability, and facilitating stable equipment operation.

[0041] Example 3: Based on Example 1, please refer to... Figure 2 - Figure 10The circulation pipe 31 is also disclosed, and its specific structure is as follows: a drive assembly 22 is movably mounted on the outer surface of the cylinder 21, a pressing rod 25 is fixedly mounted on the top of the drive assembly 22, a baffle 26 is fixedly mounted on the outer surface of the pressing rod 25, a telescopic spring 27 is fixedly mounted on the bottom surface of the baffle 26, the sealing mechanism includes a limiting plate 28, the limiting plate 28 is fixedly mounted on the outer surface of the telescopic spring 27, an elastic element 29 is movably mounted on the inner side of the limiting plate 28, a return spring 30 is fixedly mounted on the bottom surface of the limiting plate 28, and the limiting plate 28 and the return spring 30 form a telescopic structure, and the inner side of the injection mold 16 is fixed. A mold groove 24 is installed, a limiting plate 28 is movably installed on the inner side of the mold groove 24, an elastic element 29 is movably installed on the inner side of the mold groove 24, and the elastic element 29 is fixedly installed on the top of the mold shell 23. The cooling mechanism includes a circulation pipe 31, which is fixedly installed on the inner side of the mold shell 23. A water inlet 35 is fixedly installed on the inner side of the circulation pipe 31, and the water inlet 35 is fixedly installed on the outer surface of the sealing plate 34. The sealing plate 34 is fixedly installed on the outer surface of the flow divider 33. The sealing plate 34 is fixedly installed on the outer surface of the filter assembly 32, and the flow divider 33 is fixedly installed on the inner side of the filter assembly 32.

[0042] By activating cylinder 21, cylinder 21 drives drive assembly 22 to rise and fall, drive assembly 22 drives extrusion rod 25 to move, extrusion rod 25 drives baffle 26 to move, and extrusion rod 25 drives telescopic spring 27 to move. Through the downward pressure of gear mold 11 and the upward pressure on baffle 26, the metal powder inside mold groove 24 is easily extruded, facilitating the compression molding of the gear model and improving the molding efficiency of the equipment. Furthermore, the elastic element 29 limits the position of limiting plate 28, and the return spring 30 relieves the pressure on limiting plate 28, reducing the impact force during compression molding and preventing powder splashing, thereby improving efficiency. The system improves the air quality in the workshop, protects the health of personnel, enhances the efficiency of powder metallurgy, and facilitates the connection of external water pipes through the water inlet 35. The sealing plate 34 increases the internal sealing to prevent water leakage. The diverter 33 facilitates the separation of water, thereby increasing the water flow rate. The filter assembly 32 facilitates the filtration of water to avoid pipe blockage. The circulation pipe 31 circulates the internal water, which helps the circulation pipe 31 absorb the high temperature generated by the mold during compression molding, thereby accelerating the cooling speed of the gear and improving the gear forming efficiency.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated and efficient gear powder metallurgy forming mold, comprising a top plate (1), wherein support columns (2) are fixedly installed at the four corners of the bottom surface of the top plate (1), characterized in that: A hydraulic pump (7) is fixedly installed at the top of the top plate (1), an adjusting rod (8) is movably installed on the inner side of the top plate (1), a sealing element (9) is fixedly installed on the bottom surface of the adjusting rod (8), a supporting plate (3) is movably abutted against the outer surface of the supporting column (2), and a protective mechanism is provided between the supporting plate (3) and the adjusting rod (8). The bottom surface of the support column (2) is fixedly installed with a middle plate (4), the bottom surface of the support plate (3) and the upper surface of the middle plate (4) are fixedly connected, the bottom surface of the middle plate (4) is fixedly installed with a protective shell (5), the bottom surface of the protective shell (5) is fixedly installed with a bottom plate (6), and the top of the bottom plate (6) is fixedly installed with a cylinder (21). A positioning post (17) is fixedly installed at the top of the base plate (6), a fixing plate (18) is fixedly installed at the top of the positioning post (17), a buffer assembly (19) is fixedly installed at the top of the fixing plate (18), and a buffer rod (20) is movably installed on the inner side of the buffer assembly (19). A drive assembly (22) is movably mounted on the outer surface of the cylinder (21). A pressing rod (25) is fixedly mounted on the top of the drive assembly (22). A baffle (26) is fixedly mounted on the outer surface of the pressing rod (25). A telescopic spring (27) is fixedly mounted on the bottom surface of the baffle (26). A mold shell (23) is fixedly installed on the top of the middle plate (4), and a mold groove (24) is fixedly installed on the inner side of the mold shell (23). A sealing mechanism to prevent splashing is provided between the middle plate (4) and the mold shell (23). The sealing mechanism includes a limiting plate (28), which is fixedly installed on the outer surface of the telescopic spring (27). An elastic element (29) is movably installed on the inner side of the limiting plate (28), and a return spring (30) is fixedly installed on the bottom surface of the limiting plate (28). The limiting plate (28) and the return spring (30) form a telescopic structure.

2. The automated and efficient gear powder metallurgy forming mold according to claim 1, characterized in that: The protective mechanism includes an adjusting rod (8), which is fixedly installed on the outer surface of the hydraulic pump (7). A pressing rod (10) is movably installed on the inner side of the adjusting rod (8). A gear mold (11) is fixedly installed on the bottom surface of the pressing rod (10), and the pressing rod (10) and the gear mold (11) form a lifting structure.

3. The automated and efficient gear powder metallurgy forming mold according to claim 1, characterized in that: A hydraulic assembly (12) is fixedly installed at the top of the support plate (3). The hydraulic assembly (12) includes a telescopic rod (13). A movable block (14) is fixedly installed on the outer surface of the telescopic rod (13). A positioning block (15) is movably installed on the inner side of the movable block (14).

4. The automated and efficient gear powder metallurgy forming mold according to claim 3, characterized in that: The positioning block (15) is fixedly installed on the top of the injection mold (16), and a mold shell (23) is fixedly installed on the outer surface of the injection mold (16). A cooling mechanism is provided between the injection mold (16) and the mold shell (23).

5. The automated and efficient gear powder metallurgy forming mold according to claim 4, characterized in that: The inner side of the injection mold (16) is fixedly installed with a mold groove (24), the inner side of the mold groove (24) is movably installed with a limiting plate (28), the inner side of the mold groove (24) is movably installed with an elastic element (29), and the elastic element (29) is fixedly installed on the top of the mold shell (23).

6. The automated and efficient gear powder metallurgy forming mold according to claim 4, characterized in that: The cooling mechanism includes a circulation pipe (31), which is fixedly installed on the inner side of the mold shell (23). A water inlet (35) is fixedly installed on the inner side of the circulation pipe (31), and the water inlet (35) is fixedly installed on the outer surface of the sealing plate (34).

7. The automated and efficient gear powder metallurgy forming mold according to claim 6, characterized in that: The sealing disc (34) is fixedly installed on the outer surface of the diverter (33), the sealing disc (34) is fixedly installed on the outer surface of the filter assembly (32), and the diverter (33) is fixedly installed on the inner side of the filter assembly (32).

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