Powder metallurgy pump gear machining device

Abstract

The utility model discloses a powder metallurgy pump gear machining device, which relates to the technical field of powder metallurgy, and comprises a mounting plate, the top surface of the mounting plate is fixedly connected with a workbench, one end of the top surface of the workbench is provided with a mounting hole, and a lower die assembly is mounted in the mounting hole. An upper die assembly is installed on the top face of the workbench and located above the lower die assembly, a feeding assembly is installed at the other end of the top face of the workbench, and a tamping and vibrating assembly is installed on the bottom face of the workbench. The upper die assembly comprises an L-shaped column, the top face of the workbench is fixedly connected with the L-shaped column, the bottom face of the L-shaped column is fixedly connected with a downward pressing hydraulic rod, the output end of the downward pressing hydraulic rod is fixedly connected with a hollow block, and the bottom face of the hollow block is fixedly connected with a circular ring. According to the utility model, through the mutual cooperation of the lower die assembly, the upper die assembly, the feeding assembly, the tamping assembly and the recovery assembly, the extrusion forming of the pump gear can be realized.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy technology, specifically to a powder metallurgy pump gear processing device. Background Technology

[0002] In traditional powder metallurgy stamping processes, the processing of pump gears typically involves filling the lower die cavity with metal powder via a feeding device. The upper die then closes with the lower die under hydraulic drive to complete the pressing process. The formed workpiece must be manually removed from between the upper and lower dies, which presents the following drawbacks: The manual material handling is cumbersome, extending the production cycle and making it difficult to meet batch processing demands. Furthermore, frequent contact with the die area by operators increases the risk of mechanical injury due to equipment malfunctions or operational errors.

[0003] To address the aforementioned issues, existing technologies, such as patent CN210358745U, propose an improved solution. This solution involves adding an electromechanically driven ejector rod between the press platform and the vertical stamping unit, enabling automatic material ejection and demolding, effectively solving the problems of low efficiency and safety associated with manual material handling. However, this solution still has the following technical shortcomings.

[0004] Because the upper and lower molds lack a sealing structure at the mold opening during the closing process, powder inside the lower mold cavity is squeezed and splashes outwards. This not only wastes raw materials but also causes powder contamination, affecting the quality of the formed workpiece. Utility Model Content

[0005] The purpose of this invention is to provide a powder metallurgy pump gear processing device to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a powder metallurgy pump gear processing device, comprising a mounting plate, a worktable fixedly connected to the top surface of the mounting plate, a mounting hole provided at one end of the top surface of the worktable, a lower mold assembly installed in the mounting hole, an upper mold assembly installed on the top surface of the worktable above the lower mold assembly, a feeding assembly installed at the other end of the top surface of the worktable, a vibration assembly installed on the bottom surface of the worktable, and a recovery assembly installed on the top surface of the mounting plate on one side of the worktable; the upper mold assembly includes an L-shaped column, an L-shaped column fixedly connected to the top surface of the worktable, a downward hydraulic rod fixedly connected to the bottom surface of the L-shaped column, a hollow block fixedly connected to the output end of the downward hydraulic rod, a ring fixedly connected to the bottom surface of the hollow block, an upper gear column fixedly connected to the bottom surface of the ring, and a shaft hole provided in the middle of the upper gear column, the shaft hole communicating with the hollow block.

[0007] Preferably, the upper mold assembly further includes a reset damping rod, the bottom surface of the ring is fixedly connected to the reset damping rod, one end of the reset damping rod is fixedly connected to a protective cover, and the protective cover is slidably connected to the surface of the upper gear column.

[0008] Preferably, the recycling assembly includes a bag filter, the bag filter is fixedly connected to the top surface of the mounting plate, the input end of the bag filter is connected to a multi-way valve through a main pipe, one end of the multi-way valve is connected to a hollow block through a first flexible hose, and the other end of the multi-way valve is connected to the inside of the protective cover through a second flexible hose.

[0009] Preferably, the lower mold assembly includes a lower module, which is fixedly connected to the mounting hole. A gear hole is provided in the middle of the lower module. A lifting hydraulic rod is fixedly connected to the bottom surface of the lower module. A lifting rod is fixedly connected to the output end of the lifting hydraulic rod. A lower gear column is fixedly connected to the top surface of the lifting rod. A U-shaped block is fixedly connected to the bottom surface of the lower module. A shaft is fixedly connected to the top surface of the U-shaped block. The shaft slides in the middle of the lower gear column.

[0010] Preferably, the tamping assembly includes a rectangular sleeve and a reciprocating motor. The reciprocating motor is fixedly connected to the bottom surface of the workbench. A reciprocating disc is fixedly connected to the output shaft end of the reciprocating motor. A reciprocating column is fixedly connected to one side of the reciprocating disc. A rectangular sleeve is fixedly connected to the inner wall of the mounting hole. A T-shaped column is slidably connected inside the rectangular sleeve. A reciprocating hole is provided on one side of the T-shaped column.

[0011] Preferably, the feeding assembly includes a protrusion, the other end of the top surface of the workbench is fixedly connected to the protrusion, a feeding hydraulic rod is fixedly connected to one side of the protrusion, a feeding block is fixedly connected to the output end of the feeding hydraulic rod, a discharge hole is provided in the middle of the feeding block, and a sponge block is fixedly connected to one side of the feeding block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The protective cover not only cleans the surface of the upper gear column, but also prevents excess metallurgical powder from spilling around the upper gear column.

[0014] 2. By using the lifting hydraulic rod in the lower die assembly to drive the lifting rod and the lower gear column to move upward, the extruded pump gear can be disengaged from the gear hole, which facilitates the subsequent material unloading.

[0015] 3. By using the tamping component, the problem of metallurgical powder failing to fill and compact the gear hole, which would cause defects when the pump gear is squeezed out, can be avoided.

[0016] 4. The feeding assembly enables the extruded pump gear to move from above the lower die assembly and conveys the powder to be extruded into the lower die assembly, facilitating the extrusion of the next pump gear. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0018] Figure 2 This is a schematic diagram of the entire utility model from another perspective;

[0019] Figure 3 This is a schematic diagram of the recycling component of this utility model;

[0020] Figure 4 This is a schematic diagram of the upper mold assembly of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the upper mold assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the lower mold assembly and the tamping assembly of this utility model;

[0023] Figure 7 This is a schematic diagram of the workbench of this utility model;

[0024] Figure 8 This is a schematic diagram of the vibration assembly of this utility model;

[0025] Figure 9 This is a schematic diagram of the lower mold assembly of this utility model;

[0026] Figure 10 This is a partial cross-sectional view of the lower mold assembly of this utility model.

[0027] Figure label:

[0028] 100. Mounting plate;

[0029] 200. Workbench;

[0030] 300. Mounting holes;

[0031] 400. Lower mold assembly; 401. Lower module; 402. Gear hole; 403. Lifting hydraulic rod; 404. Lifting rod; 405. Lower gear column; 406. U-block; 407. Shaft;

[0032] 500. Upper mold assembly; 501. L-shaped column; 502. Lower hydraulic rod; 503. Hollow block; 504. Ring; 505. Upper toothed column; 506. Shaft hole; 507. Reset damping rod; 508. Protective cover;

[0033] 600. Feeding assembly; 601. Protrusion; 602. Feeding hydraulic rod; 603. Feeding block; 604. Discharge hole; 605. Sponge block;

[0034] 700. Vibration assembly; 701. Rectangular sleeve; 702. Reciprocating motor; 703. Reciprocating disc; 704. Reciprocating column; 705. T-shaped column; 706. Reciprocating hole;

[0035] 800. Recycling component; 801. Bag filter; 802. Main pipe; 803. Multi-way valve; 804. First hose; 805. Second hose. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example: This utility model provides a technical solution for a powder metallurgy pump gear processing device, such as... Figures 1-10 As shown, the system includes a mounting plate 100, with a worktable 200 fixedly connected to its top surface. A mounting hole 300 is provided at one end of the top surface of the worktable 200, into which a lower mold assembly 400 is installed. An upper mold assembly 500 is installed on the top surface of the worktable 200 above the lower mold assembly 400. A feeding assembly 600 is installed at the other end of the top surface of the worktable 200. A vibration assembly 700 is installed on the bottom surface of the worktable 200. The top surface of the mounting plate 100, located above the worktable 200... A recycling component 800 is installed on the side; the upper mold component 500 includes an L-shaped column 501, the top surface of the worktable 200 is fixedly connected to the L-shaped column 501, the bottom surface of the L-shaped column 501 is fixedly connected to the downward hydraulic rod 502, the output end of the downward hydraulic rod 502 is fixedly connected to the hollow block 503, the bottom surface of the hollow block 503 is fixedly connected to the ring 504, the bottom surface of the ring 504 is fixedly connected to the upper tooth column 505, the middle part of the upper tooth column 505 is provided with a shaft hole 506, and the shaft hole 506 communicates with the hollow block 503.

[0038] By cooperating with the upper die assembly 500 and the lower die assembly 400, the metallurgical powder can be extruded to form the shape of a pump gear.

[0039] As one embodiment, the upper mold assembly 500 also includes a reset damping rod 507. The reset damping rod 507 is fixedly connected to the bottom surface of the ring 504. A protective cover 508 is fixedly connected to one end of the reset damping rod 507. The protective cover 508 is slidably connected to the surface of the upper tooth post 505.

[0040] The protective cover 508 not only cleans the surface of the upper tooth post 505, but also prevents excess metallurgical powder from spilling out around the upper tooth post 505.

[0041] As one embodiment, the recycling component 800 includes a bag filter 801. The bag filter 801 is fixedly connected to the top surface of the mounting plate 100. The input end of the bag filter 801 is connected to a multi-way valve 803 through a main pipe 802. One end of the multi-way valve 803 is connected to a hollow block 503 through a first hose 804, and the other end of the multi-way valve 803 is connected to the inside of a protective cover 508 through a second hose 805.

[0042] The excess metallurgical powder generated during extrusion can be recovered by using the recycling component 800.

[0043] As one embodiment, the lower mold assembly 400 includes a lower module 401, which is fixedly connected in the mounting hole 300. A gear hole 402 is provided in the middle of the lower module 401. A lifting hydraulic rod 403 is fixedly connected to the bottom surface of the lower module 401. A lifting rod 404 is fixedly connected to the output end of the lifting hydraulic rod 403. A lower gear column 405 is fixedly connected to the top surface of the lifting rod 404. A U-shaped block 406 is fixedly connected to the bottom surface of the lower module 401. A shaft 407 is fixedly connected to the top surface of the U-shaped block 406. The shaft 407 slides in the middle of the lower gear column 405.

[0044] By using the lifting hydraulic rod 403 in the lower die assembly 400 to drive the lifting rod 404 and the lower gear column 405 to move upward, the extruded pump gear can be disengaged from the gear hole 402, facilitating subsequent material unloading.

[0045] As one embodiment, the tamping assembly 700 includes a rectangular sleeve 701 and a reciprocating motor 702. The reciprocating motor 702 is fixedly connected to the bottom surface of the worktable 200. A reciprocating disc 703 is fixedly connected to the output shaft end of the reciprocating motor 702. A reciprocating column 704 is fixedly connected to one side of the reciprocating disc 703. The rectangular sleeve 701 is fixedly connected to the inner wall of the mounting hole 300. A T-shaped column 705 is slidably connected inside the rectangular sleeve 701. A reciprocating hole 706 is provided on one side of the T-shaped column 705.

[0046] By using the tamping component 700, the problem of metallurgical powder failing to fill and compact the gear hole 402, which would cause defects when the pump gear is squeezed out, can be avoided.

[0047] As one embodiment, the feeding assembly 600 includes a protrusion 601. The protrusion 601 is fixedly connected to the other end of the top surface of the worktable 200. A feeding hydraulic rod 602 is fixedly connected to one side of the protrusion 601. A feeding block 603 is fixedly connected to the output end of the feeding hydraulic rod 602. A discharge hole 604 is provided in the middle of the feeding block 603. A sponge block 605 is fixedly connected to one side of the feeding block 603.

[0048] The feeding assembly 600 enables the extruded pump gear to be moved from above the lower die assembly 400, and the powder to be extruded into the lower die assembly 400 to facilitate the extrusion of the next pump gear.

[0049] In specific implementation of this utility model:

[0050] In operation, firstly, metallurgical powder is injected into the discharge hole 604 using external equipment. Then, the feeding hydraulic rod 602 is activated. When the feeding hydraulic rod 602 operates, it drives the feeding block 603 to slide along the top surface of the worktable 200, conveying the metallurgical powder above the lower mold assembly 400. When the feeding block 603 is located on the top surface of the lower module 401, the discharge hole 604 will align with the gear hole 402. At this point, the metallurgical powder in the discharge hole 604 will fall into the gear hole 402, also landing on the top surface of the lower gear 405. After falling... At this time, the reciprocating motor 702 is started, which drives the reciprocating disc 703 and the reciprocating column 704 to rotate. When the reciprocating column 704 rotates, it will slide in the reciprocating hole 706 and drive the T-shaped column 705 to slide in the rectangular sleeve 701. This causes one end of the T-shaped column 705 to strike the lower module 401, making the powder metallurgy in the gear hole 402 more substantial and filling it. After filling, the feeding hydraulic rod 602 will drive the feeding block 603 to reset. After resetting, the powder to be used next time will be added to the discharge hole 604.

[0051] At this time, the lower hydraulic rod 502 is activated. When the lower hydraulic rod 502 is working, it will drive the hollow block 503, the ring 504, the upper gear column 505 and the protective cover 508 to move downward as a whole. As the protective cover 508 moves downward, the bottom surface of the protective cover 508 first contacts the top surface of the upper module 401. After contact, the protective cover 508 stops moving. At the same time, the reset damping rod 507 is squeezed, and one end of the upper gear column 505 is inserted into the gear hole 402. As the upper gear column 505 is inserted, the powder overflowing around the upper gear column 505 will be blocked by the protective cover 508. As the upper gear column 505 is inserted, the pump gear is extruded and formed under the action of the shaft 407, the lower gear column 405 and the gear hole 402.

[0052] After the pump gears are extruded and formed, the bag filter 801 is started. The fan inside the bag filter 801 starts to work. Under the action of the main pipe 802, the first hose 804 and the second hose 805, the residual powder in the shaft hole 506 and the protective cover 508 is absorbed into the filter bag inside the bag filter 801 to realize the recovery of excess powder.

[0053] After recovery, the downward hydraulic rod 502 will drive the upper gear 505 and the protective cover 508 to reset. After reset, the lifting hydraulic rod 403 will drive the lifting rod 404 to move upward. As the lifting rod 404 moves upward, the lower gear 405 will slide on the gear hole 402 and the shaft 407 respectively. When the lower gear 405 moves upward, it can drive the extruded pump gear to disengage from the gear hole 402.

[0054] After separation, when the feeding block 603 performs secondary feeding, it will cause the sponge block 605 to push away the formed pump gear, and then repeat the above steps to perform secondary feeding, which facilitates the subsequent stamping and forming.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A powder metallurgy pump gear processing device, characterized in that, The system includes a mounting plate (100), a workbench (200) is fixedly connected to the top surface of the mounting plate (100), a mounting hole (300) is provided at one end of the top surface of the workbench (200), a lower mold assembly (400) is installed in the mounting hole (300), an upper mold assembly (500) is installed on the top surface of the workbench (200) above the lower mold assembly (400), a feeding assembly (600) is installed at the other end of the top surface of the workbench (200), a vibration assembly (700) is installed on the bottom surface of the workbench (200), and a recycling assembly (800) is installed on the top surface of the mounting plate (100) on one side of the workbench (200). The upper mold assembly (500) includes an L-shaped column (501). The top surface of the worktable (200) is fixedly connected to the L-shaped column (501). The bottom surface of the L-shaped column (501) is fixedly connected to a downward hydraulic rod (502). The output end of the downward hydraulic rod (502) is fixedly connected to a hollow block (503). The bottom surface of the hollow block (503) is fixedly connected to a ring (504). The bottom surface of the ring (504) is fixedly connected to an upper toothed column (505). The middle part of the upper toothed column (505) is provided with a shaft hole (506). The shaft hole (506) communicates with the hollow block (503).

2. The powder metallurgy pump gear processing device according to claim 1, characterized in that: The upper mold assembly (500) also includes a reset damping rod (507). The bottom surface of the ring (504) is fixedly connected to the reset damping rod (507). One end of the reset damping rod (507) is fixedly connected to a protective cover (508). The protective cover (508) is slidably connected to the surface of the upper tooth column (505).

3. The powder metallurgy pump gear processing device according to claim 2, characterized in that: The recycling assembly (800) includes a bag filter (801), and the bag filter (801) is fixedly connected to the top surface of the mounting plate (100). The input end of the bag filter (801) is connected to a multi-way valve (803) through a main pipe (802). One end of the multi-way valve (803) is connected to a hollow block (503) through a first hose (804), and the other end of the multi-way valve (803) is connected to a protective cover (508) through a second hose (805).

4. The powder metallurgy pump gear processing device according to claim 3, characterized in that: The lower mold assembly (400) includes a lower module (401), which is fixedly connected in the mounting hole (300). A gear hole (402) is provided in the middle of the lower module (401). A lifting hydraulic rod (403) is fixedly connected to the bottom surface of the lower module (401). A lifting rod (404) is fixedly connected to the output end of the lifting hydraulic rod (403). A lower gear column (405) is fixedly connected to the top surface of the lifting rod (404). A U-shaped block (406) is fixedly connected to the bottom surface of the lower module (401). A shaft (407) is fixedly connected to the top surface of the U-shaped block (406). The shaft (407) slides in the middle of the lower gear column (405).

5. The powder metallurgy pump gear processing device according to claim 4, characterized in that: The tamping assembly (700) includes a rectangular sleeve (701) and a reciprocating motor (702). The reciprocating motor (702) is fixedly connected to the bottom surface of the worktable (200). A reciprocating disc (703) is fixedly connected to the output shaft end of the reciprocating motor (702). A reciprocating column (704) is fixedly connected to one side of the reciprocating disc (703). The rectangular sleeve (701) is fixedly connected to the inner wall of the mounting hole (300). A T-shaped column (705) is slidably connected inside the rectangular sleeve (701). A reciprocating hole (706) is provided on one side of the T-shaped column (705).

6. The powder metallurgy pump gear processing device according to claim 5, characterized in that: The feeding assembly (600) includes a protrusion (601). The protrusion (601) is fixedly connected to the other end of the top surface of the worktable (200). A feeding hydraulic rod (602) is fixedly connected to one side of the protrusion (601). A feeding block (603) is fixedly connected to the output end of the feeding hydraulic rod (602). A discharge hole (604) is provided in the middle of the feeding block (603). A sponge block (605) is fixedly connected to one side of the feeding block (603).

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