Metal ring manufacturing equipment for powder metallurgy product production

Abstract

The invention discloses metal ring manufacturing equipment for powder metallurgy product production, which comprises a processing table fixed at the top of a base, and a feeding unit is transversely arranged on the top surface of the processing table in a sliding manner and is used for feeding materials in a reciprocating manner, and is characterized in that a discharging mechanism is arranged on one side of the top of the processing table; the discharging mechanism drives materials to move to the position above the discharging mechanism on one side of the base to achieve discharging, and when the discharging mechanism drives the discharging mechanism to conduct discharging, powder on the surface of the machining table is collected synchronously. The composite die set is arranged below the middle of the machining table and comprises a die set clamping assembly, an outer die ring, an inner die block, a transmission assembly and a lower die base, and the outer die ring is movably arranged in the middle of the machining table through the die set clamping assembly. And meanwhile, the table top is cleaned while automatic discharging is achieved, and dust raising is prevented.

Description

Technical Field

[0001] This invention relates to the field of powder metallurgy technology, and in particular to a metal ring manufacturing equipment for the production of powder metallurgy products. Background Technology

[0002] In the powder metallurgy production process, pressing is a key step in transforming metal powder into a dense blank. This process is usually carried out at room temperature. High pressure is applied to the metal powder filled in the mold, causing the powder particles to shift, interlock, and undergo a certain degree of plastic deformation under mechanical action, thereby obtaining a green blank with a predetermined shape and size. Current pressing production mainly uses rigid molds in conjunction with upper and lower punches to complete the operation. The pressing pressure can generally reach hundreds of megapascals to ensure that the blank has high density and forming strength. Pressing can achieve near-net-shape manufacturing, reduce subsequent machining steps, and is suitable for products with complex shapes or high precision requirements, such as rings and gears. This step plays a pivotal role in the overall powder metallurgy process and is an important foundation for the sintering quality and final performance of the product. In existing technologies, the pressing process typically involves a pushing device that pushes the powder into the mold cavity, followed by a hydraulic system that achieves high-strength compression between the top and bottom molds. Finally, an ejector mechanism ejects the pressed blank for collection. However, the inventors have discovered the following problems with this type of machine before and after the production process: 1. After the horizontal / vertical pushing device pushes the powder into the mold cavity, it will move back and forth to achieve uniform powder filling and cavity top flatness. However, the powder feeding path is unidirectional. After entering the mold cavity, the powder will form a tiny hollow area at the bottom corner of the cavity. Therefore, the distribution density of the powder inside the mold cavity is not the same. This results in the molding density of the blank at different positions after actual molding. Therefore, after subsequent sintering, the finished product may crack and the internal stress will be very different, affecting the actual product quality. Second, during continuous production, the surface of the existing machine will have a large amount of powder due to the pushing of the pushing device. If this powder is not collected and treated, it can easily cause dust pollution.

[0003] Therefore, how to provide a metal ring manufacturing equipment for powder metallurgy product production is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] One objective of this invention is to provide a metal ring manufacturing equipment for powder metallurgy product production. This invention can effectively achieve full filling of powder inside the mold cavity, improve product quality, and simultaneously clean the worktable while achieving automated feeding to prevent dust.

[0005] According to an embodiment of the present invention, a metal ring manufacturing equipment for powder metallurgy products includes a processing table fixed on the top of a base. A feeding unit is laterally slidably arranged on the top surface of the processing table for reciprocating feeding. The equipment is characterized in that a feeding mechanism is provided on one side of the top of the processing table. The feeding mechanism drives the material to move to the top of the discharge mechanism on one side of the base for discharge. When the feeding mechanism drives the discharge mechanism to discharge the material, it simultaneously collects the powder on the surface of the processing table. A composite module is arranged in the lower middle part of the processing table. The composite module includes a module clamping assembly, an outer mold ring, an inner module, a transmission assembly, and a lower mold base. The outer mold ring is movably arranged in the middle of the processing table through the module clamping assembly. The inner module is movably arranged inside the outer mold ring through the transmission assembly. A mold cavity is formed between the outer mold ring and the inner module. The lower mold base is movably arranged in the mold cavity formed between the outer mold ring and the inner module.

[0006] Furthermore, the module clamping assembly also includes a top ring and a bottom ring, which are fixedly connected by four sets of connecting rods. The outer ring of the top ring and the inner ring of the bottom ring are respectively provided with toothed rings, and the top of the inner rings of the top ring and the bottom ring are provided with protruding blocks.

[0007] Furthermore, recessed grooves are provided at both the upper and lower ends of the outer mold ring, and the recessed grooves are inserted into the gear ring. The top ring is rotatably mounted on the surface of the processing table.

[0008] Furthermore, the transmission assembly also includes a support frame and three sets of meshing teeth. The three sets of teeth are rotatably mounted on the surface of the support frame. A spline rod is fixedly connected to the top of each set of teeth. The inner module is sleeved on the outside of the spline rod. The top of the spline rod is limited and fixed by a threaded locking bolt.

[0009] Furthermore, a single set of teeth meshes with the gear ring of the inner ring of the bottom ring, the support frame is concave, the two sides of the support frame are fixed to the bottom surface of the processing table, through grooves are opened on both sides of the lower mold base, the support frame passes through the through grooves on the surface of the lower mold base, the bottom of the lower mold base is fixed to the output end of the hydraulic cylinder, and the hydraulic cylinder is fixed inside the base.

[0010] Furthermore, the feeding unit includes a pusher frame and two sets of actuators. The two sets of actuators drive the pusher frame to move laterally on the top surface of the processing table. A side slide is fixed on one side of the pusher frame. A slide groove is opened on the side of the processing table near the side slide. A toggle block is fixedly connected to the side slide at the bottom of the processing table.

[0011] Furthermore, the bottom of the processing table is slidably connected to the meshing slide. One side of the meshing slide meshes with the toothed ring on the outer ring of the top ring, and the other side of the meshing slide is fixed with an abutting protrusion. The push block and the abutting protrusion are located on the same horizontal plane and abut against each other. The bottom of the meshing slide slides on the slide rod through the ear plate. The slide rod is fixed to the bottom of the processing table, and a spring is sleeved on the surface of the slide rod. The meshing slide is elastically connected to the processing table through the spring.

[0012] Furthermore, the unloading mechanism includes a receiving platform and a connecting frame. The bottom sides of the receiving platform are slidably mounted on a slide rail via electric sliders. The slide rail is located on both sides of the top of the processing table. An actuating cylinder is fixed above the center of the receiving platform. The output shaft of the actuating cylinder passes through the receiving platform and is fixed to the connecting frame.

[0013] Furthermore, a toggle lever and an oblique sweeping lever are fixed at the bottom of the connecting frame. The oblique sweeping lever and the motion vector of the receiving table form a certain angle. The upward stroke of the connecting frame is greater than the height distance of the pusher frame on the surface of the processing table.

[0014] Furthermore, a collection groove is opened on the surface of the processing table near the end of the inclined sweeping bar, and a feeding chamber is fixed at the bottom of the processing table near the collection groove. The bottom of the feeding chamber is aligned with the collection drawer, and the collection drawer is slidably set under the base.

[0015] The beneficial effects of this invention are: This invention, through the configured transmission component and module clamping component, allows the side slide to simultaneously drive the contact block to abut against the contact protrusion on one side of the engagement slide while the pusher frame laterally pushes the powder into the mold cavity. Continuous movement then drives the outer mold ring and inner module to rotate synchronously through the module clamping component and transmission component, while the lower mold base remains in a fixed position. At this time, the mold cavity formed by the lower mold base, outer mold ring, and inner module rotates, ensuring that the powder is evenly filled inside the mold cavity as the pusher frame pushes the powder in. Simultaneously, the rotating outer mold ring and inner module, under centrifugal force, further homogenize the powder filling, preventing the formation of tiny gaps and thus ensuring the quality of the subsequent metallurgical products. This invention features a feeding mechanism that uses a cylinder to drive the connecting frame, the lower actuating rod, and the oblique sweeping rod to move up and down, preventing the oblique sweeping rod from colliding with the pusher frame. An electric slider allows the receiving platform to slide laterally above the processing table. Once the actuating rod descends to the inner ring position of the finished product, its movement causes the metal ring to move onto the discharging mechanism, completing the feeding. Simultaneously, the oblique sweeping rod contacts the surface of the processing table. The tilted design allows powder on the processing table surface to converge to one side during lateral movement, ultimately falling into the collection trough and being guided by the feeding chamber into the collection drawer, completing the collection operation. This invention, through the configuration of a module clamping assembly and a transmission assembly, allows the top ring and bottom ring to engage with the concave groove on the surface of the outer mold ring via a connecting rod. This ensures that the outer mold ring is stably fixed to the module clamping assembly, while the inner module is inserted into the surface of the spline rod and secured with locking bolts. This allows for the disassembly of the outer mold ring and the inner module, facilitating the replacement of different modules and enhancing the adaptability of the production line. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a metal ring manufacturing equipment for powder metallurgy product production proposed in this invention; Figure 2 This is a schematic diagram of the inner structure of a metal ring manufacturing equipment for powder metallurgy product production proposed in this invention.

[0018] Figure 3 This is a schematic diagram of the surface structure of the processing table of a metal ring manufacturing equipment for powder metallurgy product production proposed in this invention.

[0019] Figure 4 This is a partial structural diagram of the feeding unit of a metal ring manufacturing equipment for powder metallurgy product production proposed in this invention.

[0020] Figure 5 This is a schematic diagram of a composite module structure for a metal ring manufacturing equipment for powder metallurgy product production proposed in this invention.

[0021] Figure 6 This is a schematic diagram showing the disassembly of a composite module for a metal ring manufacturing equipment for powder metallurgy products, as proposed in this invention.

[0022] Figure 7 This is a half-section diagram of a composite module for manufacturing metal rings for powder metallurgy products, as proposed in this invention.

[0023] Figure 8 This invention proposes a metal ring manufacturing equipment for powder metallurgy product production. Figure 6 Enlarged schematic diagram of the structure at point A.

[0024] In the diagram: 1. Base; 2. Processing table; 3. Feeding unit; 4. Unloading mechanism; 5. Discharge assembly; 6. Collection drawer; 7. Composite module; 31. Pusher frame; 32. Actuating cylinder; 33. Side slide; 34. Toggle block; 35. Engaging slide; 36. Abutting protrusion; 37. Slide rod; 38. Spring component; 41. Receiving platform; 42. Electric slider; 43. Slide rail; 44. Actuating cylinder; 45. Connecting frame; 46. Actuating rod; 47. Angled sweeping rod; 48. Collection groove; 49. Discharge cavity; 71. Module clamping assembly; 72. Outer mold ring; 73. Recessed groove; 74. Inner module; 75. Transmission assembly; 76. Lower mold base; 77. Hydraulic cylinder; 711. Top ring; 712. Bottom ring; 713. Connecting rod; 714. Gear ring; 715. Convex block; 751. Bearing frame; 752. Gear; 753. Spline rod; 754. Locking bolt. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0026] refer to Figures 1-8 The system includes a processing table 2 fixed to the top of a base 1. A feeding unit 3 is slidably mounted on the top surface of the processing table 2 for reciprocating feeding. The system is characterized in that a feeding mechanism 4 is provided on one side of the top of the processing table 2. The feeding mechanism 4 drives the material to move to the top of the discharge component 5 on one side of the base 1 to discharge the material. When the feeding mechanism 4 drives the discharge component 5 to discharge the material, it simultaneously collects the powder on the surface of the processing table 2. A composite module 7 is provided in the lower middle part of the processing table 2. The composite module 7 includes a module clamping component 71, an outer mold ring 72, an inner module 74, a transmission component 75, and a lower mold base 76. The outer mold ring 72 is movably mounted in the middle of the processing table 2 through the module clamping component 71. The inner module 74 is movably mounted inside the outer mold ring 72 through the transmission component 75. A mold cavity is formed between the outer mold ring 72 and the inner module 74. The lower mold base 76 is movably mounted in the mold cavity formed between the outer mold ring 72 and the inner module 74.

[0027] In this embodiment, a powder feeding pipe is provided above the feeding unit 3, which is laterally slidable on the surface of the processing table 2. During the lateral displacement, the powder is pushed to the position of the composite module 7. Then, the mold cavity composed of the outer mold ring 72, the inner module 74 and the lower mold base 76 will be filled with powder. Finally, the upper pressing mold will be used for molding. While the powder is being pushed, the previously pressed metal ring will be pushed out of the mold cavity by the lower mold base 76. At this time, the front end of the feeding unit 3 will simultaneously push the metal ring blank to move a distance. Then, the unloading mechanism 4 can drive the blank to the direction of the discharge component 5, thereby realizing automated unloading operation. While the feeding unit 3 pushes the powder into the mold cavity, the feeding unit 3 can drive the outer mold ring 72 and the inner module 74 to rotate through the module clamping component 71 and the transmission component 75. This rotation effect is synchronized with the advancement of the feeding unit 3, so that the powder can be fully filled in different positions in the annular mold cavity, preventing the appearance of tiny gaps inside the mold cavity due to unidirectional powder pushing, thereby ensuring the processing quality of the subsequent blank.

[0028] refer to Figures 5-8The mold clamping assembly 71 also includes a top ring 711 and a bottom ring 712, which are fixedly connected by four sets of connecting rods 713. The outer ring of the top ring 711 and the inner ring of the bottom ring 712 are respectively provided with toothed rings 714, and the top of the inner rings of the top ring 711 and the bottom ring 712 are provided with protruding blocks 715. The upper and lower ends of the outer mold ring 72 are provided with recessed grooves 73, which are inserted into the toothed rings 714. The top ring 711 is rotatably mounted on the surface of the processing table 2. The transmission assembly 75 also includes a support frame 751 and three sets of meshing teeth 752. The three sets of teeth 752 are rotatably mounted on the surface of the support frame 751. The top of each set of teeth 752 is fixedly connected to a spline rod 753. The inner module 74 is sleeved on the outside of the spline rod 753. The top of the spline rod 753 is limited and fixed to the inner module 74 by a threaded locking bolt 754. A single set of meshing teeth 752 meshes with the toothed ring 714 of the inner ring of the bottom ring 712. The support frame 751 is concave. The two sides of the support frame 751 are fixed to the bottom surface of the processing table 2. Through slots are opened on both sides of the lower mold base 76. The support frame 751 passes through the through slots on the surface of the lower mold base 76. The bottom of the lower mold base 76 is fixed to the output end of the hydraulic cylinder 77. The hydraulic cylinder 77 is fixed inside the base 1.

[0029] In this embodiment, during normal assembly, a top ring 711 and a bottom ring 712 are respectively fitted onto the upper and lower sides of the outer mold ring 72. The protruding blocks 715 on the top ring 711 and the bottom ring 712 are aligned with the recessed grooves 73 on the surface of the outer mold ring 72 and inserted. Then, the top ring 711 and the bottom ring 712 are fixed by the connecting rod 713. The assembly is then completed by placing the top ring 711 as a whole into the groove on the surface of the processing table 2. This operation allows for the replacement of outer mold rings 72 with different diameters to meet the pressing operations of different specifications and sizes. The inner module 74 is directly inserted into the surface of the spline rod 753. Then, the locking bolt 754 is threaded onto the spline rod 753 to complete the assembly of the inner module 74, which facilitates the replacement of the inner module 74 in the future. In actual production, when the feeding unit 3 pushes the material, it can drive the top ring 711 to rotate. At this time, the bottom ring 712 rotates accordingly, thereby realizing the rotation of the outer mold ring 72. The inner ring of the bottom ring 712 has a protruding block 715, which engages with the teeth 752 on the surface of the support frame 751. The meshing of the teeth 752 and the effect of limiting the rotation on the support frame 751 allow the single set of teeth 752 at the other end to directly drive the spline rod 753 to rotate. At this time, the inner module 74 rotates accordingly, while the lower mold base 76 remains stationary. In this way, while the feeding unit 3 pushes the powder into the mold cavity, the outer mold ring 72 and the inner module 74 are in a rotating state, so the powder can be better filled in different areas of the mold cavity. At the same time, when the outer mold ring 72 and the inner module 74 are rotating, the contact position with the lower mold base 76 will be more unstable. This unstable dynamic motion effect further makes the powder fill the gaps, so that the filling density of the powder in various positions inside the mold cavity is the same, and thus the forming quality of the metal ring blank is higher after subsequent pressing. Subsequently, the upper mold assembly is pressed into the mold cavity and cooperates with the lower mold base 76 to achieve compression molding. Finally, the hydraulic cylinder 77 is activated, and under the pressure pushing action and the reset pressure action of the meshing slide 35, the blank is pushed out of the mold cavity by the lower mold base 76. At the same time, the inner module 74 and the outer mold ring 72 maintain a certain rotational stress. This effect can better cooperate with the blank discharge operation and prevent the outer side of the blank from being pressure-adheded to the outer mold ring 72 or the inner module 74.

[0030] refer to Figure 2 and Figure 4 The feeding unit 3 includes a pusher frame 31 and two sets of actuators 32. The two sets of actuators 32 drive the pusher frame 31 to move laterally on the top surface of the processing table 2. A side slide 33 is fixed on one side of the pusher frame 31. A slide groove is opened on the side of the processing table 2 near the side slide 33. A contact block 34 is fixedly connected to the side slide 33 at the bottom of the processing table 2. A meshing slide 35 is slidably connected to the bottom of the processing table 2. One side of the meshing slide 35 meshes with the toothed ring 714 on the outer ring of the top ring 711. An abutment protrusion 36 is fixed on the other side of the meshing slide 35. The contact block 34 and the abutment protrusion 36 are located on the same horizontal plane and abut against each other. The bottom of the meshing slide 35 slides on the slide rod 37 through the ear plate. The slide rod 37 is fixed to the bottom of the processing table 2. A spring 38 is sleeved on the surface of the slide rod 37. The meshing slide 35 is elastically connected to the processing table 2 through the spring 38.

[0031] In this embodiment, the feed inlet is connected to the top of the pusher frame 31. After the powder enters the inner side of the pusher frame 31, the actuator 32 drives the pusher frame 31 to move laterally on the surface of the processing table 2. Under the action of the inner wall of the pusher frame 31, the powder moves towards the composite module 7. At the same time, one side of the pusher frame 31 is fixedly connected to the contact block 34 through the side slide 33. The contact block 34 is located below the processing table 2. After moving a certain distance, the contact block 34 will abut against the contact protrusion 36 on the side of the engagement slide 35. Then, the continuous movement can drive the engagement slide 35 to slide on the surface of the slide rod 37, and simultaneously squeeze the spring 38 to make it elastically deform. The engagement slide 35 engages the toothed ring 714 on the outer ring of the top ring 711, causing the top ring 711 to rotate. During the retraction of the pusher frame 31, under the elastic force of the spring 38, the engagement slide 35 is reset by force, and the top ring 711 rotates in the opposite direction to achieve the reset operation.

[0032] refer to Figure 1 and Figure 3 The unloading mechanism 4 includes a receiving platform 41 and a connecting frame 45. The bottom sides of the receiving platform 41 are slidably mounted on a slide rail 43 via electric sliders 42. The slide rail 43 is located on both sides of the top of the processing table 2. An actuating cylinder 44 is fixed above the middle of the receiving platform 41. The output shaft of the actuating cylinder 44 passes through the receiving platform 41 and is fixed to the connecting frame 45. A toggle lever 46 and an oblique sweeping lever 47 are fixed at the bottom of the connecting frame 45. The oblique sweeping lever 47 and the motion vector of the receiving platform 41 form a certain angle. The upward stroke of the connecting frame 45 is greater than the height distance of the pusher frame 31 on the surface of the processing table 2. A collection groove 48 is opened on the surface of the processing table 2 near the end of the oblique sweeping lever 47. A unloading cavity 49 is fixed at the bottom of the processing table 2 near the collection groove 48. The bottom of the unloading cavity 49 is aligned with the collection drawer 6. The collection drawer 6 is slidably mounted below the base 1.

[0033] In this embodiment, during the advancement of the pusher frame 31, the lower mold base 76 completes the unloading operation. Subsequently, the metal ring blank is pushed to a certain position by the end of the pusher frame 31. At this time, the pusher frame 31 simultaneously completes the feeding of powder. During the reset, the actuator cylinder 44 on the surface of the receiving platform 41 is activated, driving the connecting frame 45 to move down. When the connecting frame 45 moves down, the actuating rod 46 and the oblique sweeping rod 47 move down simultaneously until the actuating rod 46 is inserted into the middle of the metal ring blank and the oblique sweeping rod 47 contacts the surface of the processing table 2. Then, the electric sliders 42 at the bottom of both sides of the receiving platform 41 are activated, driving the entire receiving platform 41 to slide on the slide rail 43 at the top of the processing table 2. At this time, the actuating rod 46 will drive the blank to move towards the discharge assembly 5, while the oblique sweeping rod 47 pushes the residual powder into the collection tank 48. Under the guidance of the discharge chamber 49, the powder is finally collected in the collection drawer 6.

[0034] Working principle: First, a fixed amount of powder is filled into the pusher frame 31 through the feed pipe above the pusher frame 31. Then, the pusher frame 31 is activated, causing it to move laterally on the surface of the processing table 2. The pusher frame 31 pushes the powder towards the composite module 7. At this time, one side of the pusher frame 31 drives the contact block 34 to move laterally at the bottom of the processing table 2 through the side slide 33 until it contacts the abutting protrusion 36 on the side of the engaging slide 35. Then, the engaging slide 35 is forced to press the spring 38 on the surface of the slide rod 37. At the same time, one side engages the toothed ring 714 on the outer ring of the top ring 711. Since the top ring 711 is fixed to the bottom ring 712 through the connecting rod 713, and they are connected to each other through the protruding block 715 and the recessed groove 73 on the surface of the outer mold ring 72, because... The bottom ring 712 and the outer mold ring 72 rotate accordingly, while the toothed ring 714 of the inner ring of the bottom ring 712 meshes with a single set of teeth 752 on the surface of the support frame 751. Under the action of the three sets of teeth 752 meshing with each other, the single set of teeth 752 will drive the spline rod 753 to rotate, and the inner module 74 sleeved on the surface of the spline rod 753 will rotate accordingly. Therefore, when the powder enters the mold cavity formed between the outer mold ring 72 and the inner module 74, the outer mold ring 72 and the inner module 74 rotate synchronously to achieve full filling of the powder. When the pusher frame 31 retracts, under the elastic action of the spring 38, the inner module 74 and the outer mold ring 72 reverse, further achieving uniform compaction of the powder. Then the upper pressure mold enters the mold cavity and cooperates with the lower mold base 76 to achieve high pressure preparation operation. During the repeated operation, the hydraulic cylinder 77 is activated, which pushes the lower mold base 76 to rise. At this time, the blank is pushed out of the mold cavity. The end of the pusher frame 31 pushes the blank a certain distance. When the pusher frame 31 is reset, the actuator cylinder 44 in the middle of the receiving platform 41 is activated, which drives the connecting frame 45 to move down. At this time, the actuating rod 46 will be inserted into the middle of the blank, and the oblique sweeping rod 47 will be in contact with the surface of the processing table 2. At this time, the electric slider 42 is activated, which drives the entire receiving platform 41 to move on the surface of the slide rail 43, so that the actuating rod 46 transports the blank to the discharge assembly 5. At the same time, the oblique sweeping rod 47 will push the powder into the collection tank 48, which is guided by the discharge chamber 49 and finally collected in the collection drawer 6.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A metal ring manufacturing equipment for powder metallurgy product production, comprising a processing table (2) fixed on the top of a base (1), wherein a feeding unit (3) is laterally slidably arranged on the top surface of the processing table (2) for reciprocating feeding, characterized in that, A feeding mechanism (4) is provided on one side of the top of the processing table (2). The feeding mechanism (4) drives the material to move to the top of the discharge component (5) on one side of the base (1) to discharge the material. When the feeding mechanism (4) drives the discharge component (5) to discharge the material, it simultaneously collects the powder on the surface of the processing table (2). A composite module (7) is provided in the lower middle part of the processing table (2). The composite module (7) includes a module clamping assembly (71), an outer mold ring (72), an inner module (74), a transmission assembly (75), and a lower mold base (76). The outer mold ring (72) is movably disposed in the middle of the processing table (2) through the module clamping assembly (71). The inner module (74) is movably disposed inside the outer mold ring (72) through the transmission assembly (75). A mold cavity is formed between the outer mold ring (72) and the inner module (74). The lower mold base (76) is movably disposed in the mold cavity formed between the outer mold ring (72) and the inner module (74).

2. The metal ring manufacturing equipment for powder metallurgy product production according to claim 1, characterized in that, The module clamping assembly (71) also includes a top ring (711) and a bottom ring (712). The top ring (711) and the bottom ring (712) are fixedly connected by four sets of connecting rods (713). The outer ring of the top ring (711) and the inner ring of the bottom ring (712) are respectively provided with toothed rings (714). The top of the inner rings of the top ring (711) and the bottom ring (712) are provided with protruding blocks (715).

3. The metal ring manufacturing equipment for powder metallurgy product production according to claim 2, characterized in that, The outer mold ring (72) has recessed grooves (73) at both ends. The recessed grooves (73) and the gear ring (714) are inserted into each other. The top ring (711) is rotated and mounted on the surface of the processing table (2).

4. The metal ring manufacturing equipment for powder metallurgy product production according to claim 1, characterized in that, The transmission assembly (75) also includes a support frame (751) and three sets of meshing teeth (752). The three sets of teeth (752) are rotatably mounted on the surface of the support frame (751). A spline rod (753) is fixedly connected to the top of each set of teeth (752). The inner module (74) is sleeved on the outside of the spline rod (753). The top of the spline rod (753) is limited and fixed to the inner module (74) by a threaded locking bolt (754).

5. The metal ring manufacturing equipment for powder metallurgy product production according to claim 4, characterized in that, A single set of teeth (752) meshes with the toothed ring (714) of the inner ring of the bottom ring (712). The support frame (751) is concave. The two sides of the support frame (751) are fixed to the bottom surface of the processing table (2). Through slots are opened on both sides of the lower mold base (76). The support frame (751) passes through the through slots on the surface of the lower mold base (76). The bottom of the lower mold base (76) is fixed to the output end of the hydraulic cylinder (77). The hydraulic cylinder (77) is fixed inside the base (1).

6. The metal ring manufacturing equipment for powder metallurgy product production according to claim 1, characterized in that, The feeding unit (3) includes a pusher frame (31) and two sets of actuators (32). The two sets of actuators (32) drive the pusher frame (31) to move laterally on the top surface of the processing table (2). A side slide (33) is fixed on one side of the pusher frame (31). A slide groove is opened on the side of the processing table (2) near the side slide (33). A toggle block (34) is fixedly connected to the side slide (33) extending to the bottom of the processing table (2).

7. The metal ring manufacturing equipment for powder metallurgy product production according to claim 6, characterized in that, The bottom of the processing table (2) is slidably connected to the meshing slide (35). One side of the meshing slide (35) meshes with the toothed ring (714) on the outer ring of the top ring (711). The other side of the meshing slide (35) is fixed with the abutting protrusion (36). The push block (34) and the abutting protrusion (36) are located on the same horizontal plane and abut against each other. The bottom of the meshing slide (35) slides on the slide rod (37) through the ear plate. The slide rod (37) is fixed to the bottom of the processing table (2). The surface of the slide rod (37) is fitted with a spring element (38). The meshing slide (35) is elastically connected to the processing table (2) through the spring element (38).

8. The metal ring manufacturing equipment for powder metallurgy product production according to claim 1, characterized in that, The unloading mechanism (4) includes a receiving platform (41) and a connecting frame (45). The bottom sides of the receiving platform (41) are slidably mounted on the slide rail (43) via electric sliders (42). The slide rail (43) is mounted on both sides of the top of the processing table (2). An actuating cylinder (44) is fixed above the middle of the receiving platform (41). The output shaft of the actuating cylinder (44) passes through the receiving platform (41) and is fixed to the connecting frame (45).

9. A metal ring manufacturing equipment for powder metallurgy product production according to claim 8, characterized in that, The bottom of the connecting frame (45) is fixed with a toggle rod (46) and an oblique sweeping rod (47). The oblique sweeping rod (47) and the motion vector of the receiving table (41) form a certain angle. The upward stroke of the connecting frame (45) is greater than the height distance of the pusher frame (31) on the surface of the processing table (2).

10. A metal ring manufacturing equipment for powder metallurgy product production according to claim 9, characterized in that, A collection groove (48) is opened on the surface of the processing table (2) near the end of the inclined sweeping rod (47). A feeding chamber (49) is fixed at the bottom of the processing table (2) near the collection groove (48). The bottom of the feeding chamber (49) is aligned with the collection drawer (6). The collection drawer (6) is slidably set below the base (1).

Images