Sensor ring gear powder metallurgy device

Abstract

The application relates to the powder metallurgy technical field, and particularly discloses a sensor gear ring powder metallurgy device which comprises a workbench, a discharge pipe, a distribution bin, a feeding pipe, a mounting plate and a push-pull cylinder; a lower die is mounted on the top surface of the workbench; the push-pull cylinder is mounted at one end of the workbench; the mounting plate is connected to the piston rod end of the push-pull cylinder and is movable above the lower die; a mounting box is mounted on the mounting plate; the distribution bin is rotatably mounted in the mounting box; four discharge pipes are arranged above the lower die cavity and are evenly distributed around the die cavity; the distribution bin is connected to the discharge pipes; a driving mechanism for driving the distribution bin to drive the discharge pipes to move around the die cavity is mounted on the mounting box; the discharge opening of the feeding pipe is connected to the distribution bin; and the feeding pipe is used for injecting metal powder into the distribution bin. The application has the effect of reducing the pollution of metal powder to equipment and environment.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of powder metallurgy, in particular to a sensor gear ring powder metallurgy device. BACKGROUND

[0002] Powder metallurgy is a process technology for preparing metal products by using metal powder as raw material, through pressing, sintering and post-processing. The sensor gear ring is a key component of the automobile anti-lock braking system (ABS).

[0003] In the related art, the sensor gear ring is also manufactured by using the traditional gear powder metallurgy method in the manufacturing process of the sensor gear ring. The sensor gear ring is a thin annular structure, and compared with a gear, the sensor gear ring requires less metal powder under the same diameter. The upper die and the lower die of the sensor gear ring are designed, the lower die is placed on the workbench, the top surface of the lower die is flush with the workbench, the top surface of the workbench is slidably provided with a powder box, the powder box is connected with a powder spraying pipe, the metal powder is poured into the lower die and the top surface of the workbench through the powder spraying pipe, the powder box covers the top surface of the lower die, and part of the metal powder is stacked above the lower die and part of the metal powder enters the gear ring cavity of the lower die. The powder box is reciprocally slid to push the internal metal powder to fill the gear ring cavity, and finally the powder box is retracted to smooth the metal powder in the gear ring cavity of the lower die. Then, the metal powder is pressed into shape by driving the upper die, the upper die is driven to rise, the lower die ejects the pressed gear ring, and the pressed gear ring can be obtained.

[0004] In the related art, in order to fill the gear ring cavity, the metal powder exceeding the cavity is poured onto the upper die, and the powder box is reciprocally pushed to make the metal powder fall into the cavity. Since the gear ring is a narrow annular structure, it is difficult to push the metal powder into the cavity, and the metal powder needs to be reciprocally pushed for multiple times. After the cavity is filled, too much metal powder is stacked on the workbench. When the powder box is retracted, part of the metal powder is still in the powder box, but part of the metal powder is left on the workbench. In the long run, a large amount of metal powder is left on the workbench, and if not cleaned in time, the metal powder will contaminate the equipment and the environment. SUMMARY

[0005] In order to reduce the pollution of the metal powder to the equipment and the environment, the application provides a sensor gear ring powder metallurgy device.

[0006] The sensor gear ring powder metallurgy device provided by the application adopts the following technical scheme:

[0007] The utility model provides a sensor gear ring powder metallurgy device, including workbench, discharge pipe, distribution bin, injection pipe, mounting plate, push -and -pull cylinder, the lower mould is installed to workbench top surface, and push -and -pull cylinder is installed in one end of workbench, and the mounting plate is connected to the piston rod end of push -and -pull cylinder, and the mounting plate is active in the lower mould upper portion, the mounting plate is installed with mounting box, and the distribution bin is rotatably installed in the mounting box, and the discharge pipe is provided with four, and the discharge pipe is set up in the lower model cavity upper portion, and four discharge pipes are evenly distributed around the cavity circumference, and the distribution bin is connected to the discharge pipe, and the mounting box is installed with the drive mechanism for driving the distribution bin to drive the discharge pipe and move around the cavity circumference, the discharge port of injection pipe is connected to the distribution bin, and the injection pipe is used to inject metal powder into the distribution bin.

[0008] Optionally, the distribution bin includes a cross-shaped distribution box, four distribution pipes, and a feeding pipe. The four distribution pipes are connected to the edge of the bottom surface of the cross-shaped distribution box. The bottom ends of the four distribution pipes are outwardly inclined. The four distribution pipes correspond to the four ends of the cross-shaped distribution box. The four distribution pipes are respectively connected to the top ends of the four discharge pipes. The bottom end of the feeding pipe is connected to the top surface of the cross-shaped distribution box. The end of the injection pipe is rotatably connected to the top end of the feeding pipe.

[0009] Optionally, the inside bottom surface of the cross-shaped distribution box is raised towards the middle to form a sharp cone. Four guide portions are connected to the inner four corner top portions of the cross-shaped distribution box. The top surface of the guide portion is an inclined arc surface.

[0010] Optionally, a vertical rod is connected to the middle position of the bottom surface of the cross-shaped distribution box. Four support plates are connected to the bottom end of the vertical rod. The four support plates are parallel to the top surface of the workbench. The end of the four support plates away from the vertical rod is provided with a strip-shaped slot for the horizontal sliding of the discharge pipe. A wedge-shaped bin is installed on the top of the discharge pipe. The wedge-shaped bin is arranged along the length direction of the support plate. The bottom of the wedge-shaped bin is connected to the top of the discharge pipe. The top of the wedge-shaped bin is open. The bottom end of the distribution pipe extends into the top of the wedge-shaped bin. The bottom surface of the wedge-shaped bin slides on the top surface of the support plate. The peripheral surface of the discharge pipe is connected to a limiting ring. The limiting ring slides on the bottom surface of the support plate. A driving assembly for driving the sliding of the discharge pipe is installed on the support plate.

[0011] Optionally, the driving assembly includes a screw rod and a rotating seat. The screw rod penetrates into the strip-shaped slot from the end of the support plate. The screw rod is threadedly connected to the end of the support plate. The rotating seat is installed on the peripheral surface of the discharge pipe. The end of the screw rod is rotatably connected to the rotating seat.

[0012] Optionally, the support plate is connected with a connecting block on the side, a sliding rod is arranged in the connecting block in a sliding mode, the sliding rod and the discharge pipe are on the same arc, a sliding plate is connected with the top end of the sliding rod, and the sliding plate is connected with the connecting block in a sliding mode; a connecting plate is connected with the bottom end of the sliding rod, a scraper is connected with the bottom surface of the connecting plate, the two ends of the scraper are bent to an obtuse angle towards the discharge pipe, and the scraper is arranged along the movement track of the discharge pipe; a spring is arranged on the sliding rod in a sleeving mode, one end of the spring is pressed against the connecting block, and the other end of the spring is pressed against the connecting plate; and a lifting mechanism for driving the mounting box to lift is arranged on the mounting plate.

[0013] Optionally, the bottom of the discharge pipe is connected with two symmetrical positioning pins, the two positioning pins are rotatably connected with rotating plates, one end of the two rotating plates is connected with an arc-shaped plate, and the inner arc surface of the arc-shaped plate is attached to the bottom surface of the discharge pipe; the end, away from the arc-shaped plate, of the two rotating plates is connected with a connecting pin, the end of the positioning pin is rotatably connected with the bending part of a bending plate, one end of the bending plate is connected with the connecting pin, and the bending plate is an obtuse angle; the top surface of the connecting plate is connected with two connecting rods, the top of the connecting rod is bent towards the discharge pipe, the end surface of the connecting rod is connected with a rotating pin, and the end, away from the connecting pin, of the bending plate is provided with a waist-shaped hole for the rotating pin to move.

[0014] Optionally, the driving mechanism comprises a motor, a worm and a worm wheel; the motor is installed on the side of the mounting box, one end of the worm is connected with the output shaft of the motor, the worm penetrates into the mounting box, the two ends of the worm are rotatably connected with the inner wall of the mounting box, the worm wheel is sleeved on the peripheral surface of the cross-shaped distribution box, the worm and the worm wheel are meshed, the top end and the bottom end of the cross-shaped distribution box are connected with bearing inner rings, and the bearing outer rings are connected with the inner wall of the mounting box.

[0015] Optionally, the lifting mechanism comprises a U-shaped plate, a lifting cylinder and a push-pull plate, the two ends of the U-shaped plate are connected with the top surface of the mounting plate, the lifting cylinder is installed on the top surface of the U-shaped plate, the push-pull plate is connected with the side of the mounting box, and the bottom end of the piston rod of the lifting cylinder is connected with the top surface of the push-pull plate; the top surface of the mounting box is connected with a guide rod, the guide rod penetrates through the top surface of the U-shaped plate; and the top surface of the mounting plate is provided with an opening for the mounting box and the motor to penetrate through.

[0016] Optionally, a protection frame is arranged around the mounting plate, the bottom surface of the protection frame is attached to the top surface of the workbench, the top surface of the protection frame is connected with limiting plates on both sides, the top surface of the mounting plate is connected with guide rods on both sides, and the guide rods on both sides penetrate through the limiting plates on both sides respectively; the workbench is provided with a discharge port between the push-pull cylinder and the lower die, and the discharge port communicates the top surface and the bottom surface of the workbench.

[0017] In summary, the present application has at least one of the following beneficial technical effects:

[0018] 1. When injecting metal powder into the lower mold cavity, the installation plate is moved above the lower mold by the push-pull air cylinder drive, the discharge pipe is aligned with the lower mold cavity, the injection pipe injects metal powder into the distribution bin, and the metal powder is distributed to the four discharge pipes from the distribution bin; at the same time, the drive mechanism drives the distribution bin to rotate, the distribution bin drives the four discharge pipes to rotate together, the discharge pipe moves around the cavity circumference, and the discharge pipe can directly discharge metal powder into the cavity. The metal powder can directly fall into the cavity, and the discharge pipe can control the accumulation of powder in the lower mold, so that the powder accumulated on the top surface of the lower mold is greatly reduced, thereby reducing the pollution of metal powder to the equipment and the environment;

[0019] 2. When replacing different gear ring molds, the gear ring size changes, the discharge pipe slides in the strip-shaped groove by rotating the screw rod, the discharge pipe drives the wedge-shaped bin to move, and the bottom end of the distribution pipe is always in the wedge-shaped bin during the movement process; ensure that the metal powder leaked from the distribution pipe can fall into the wedge-shaped bin, so that the discharge pipe can continuously discharge, and the position of the discharge pipe can also be changed to adapt to different gear ring diameter molds; BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the powder metallurgy device of the embodiment of the present application;

[0021] Figure 2 is a partial structural schematic diagram of the powder metallurgy device of the embodiment of the present application;

[0022] Figure 3 is a cross-sectional structural schematic diagram of the lower mold of the embodiment of the present application;

[0023] Figure 4 is a structural schematic diagram of the protective frame of the embodiment of the present application;

[0024] Figure 5 is a structural schematic diagram of the lifting mechanism of the embodiment of the present application;

[0025] Figure 6 is a structural schematic diagram of the distribution bin of the embodiment of the present application;

[0026] Figure 7 is Figure 6 is an enlarged structural schematic diagram of part A;

[0027] Figure 8 is a structural schematic diagram of the drive mechanism of the embodiment of the present application;

[0028] Figure 9 is a cross-sectional structural schematic diagram of the distribution bin of the embodiment of the present application;

[0029] Figure 10 is a cross-sectional structural schematic diagram of the connecting block of the embodiment of the present application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 01. Gear ring; 1. Workbench; 11. Push-pull cylinder; 111. Connecting frame; 12. Lower mold; 121. Pad; 122. Forming ring; 1221. First connecting ring; 123. Forming column; 1231. Second connecting ring; 124. Support ring; 125. Cavity; 13. Discharge port; 14. Mounting groove; 2. Material distribution bin; 21. Cross-shaped material distribution box; 211. Cone; 212. Guide part; 213. Upright; 22. Material distribution pipe; 23. Feed pipe; 24. Support plate; 241. Strip groove; 3. Injection pipe; 4. Mounting plate; 401. Opening; 41. Mounting box; 42. Protective frame; 421. Limiting plate; 43. Guide rod; 5. Discharge pipe; 51. Wedge-shaped bin; 52 53. Limiting ring; 531. Drive assembly; 532. Screw; 533. Rotating seat; 54. Positioning pin; 55. Rotating plate; 551. Connecting pin; 56. Arc plate; 57. Bending plate; 571. Waist-shaped hole; 6. Drive mechanism; 61. Motor; 62. Worm gear; 63. Worm wheel; 64. Bearing; 7. Connecting block; 71. Slide rod; 72. Slide plate; 73. Connecting plate; 731. Connecting rod; 732. Rotating pin; 74. Scraper; 75. Spring; 8. Lifting mechanism; 81. U-shaped plate; 82. Lifting cylinder; 83. Push-pull plate; 84. Guide rod; 9. Stand; 91. First hydraulic cylinder; 92. Arc-shaped push plate; 10. Support frame; 101. Second hydraulic cylinder; 102. Lower pressure ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0033] This application discloses a powder metallurgy apparatus for sensor gear rings. (Refer to...) Figures 1-10 The powder metallurgy apparatus includes a workbench 1, a discharge pipe 5, a distribution bin 2, an injection pipe 3, a mounting plate 4, and a push-pull cylinder 11. A lower mold 12 is mounted on the top surface of the workbench 1. The push-pull cylinder 11 is mounted at one end of the workbench 1. The mounting plate 4 is connected to the piston rod end of the push-pull cylinder 11 and is movable above the lower mold 12. An mounting box 41 is mounted on the mounting plate 4. The distribution bin 2 is rotatably mounted inside the mounting box 41. Four discharge pipes 5 are provided and are located above the cavity 125 of the lower mold 12. The four discharge pipes 5 are evenly distributed around the circumference of the cavity 125. The distribution bin 2 is connected to the discharge pipes 5. A drive mechanism 6 is mounted on the mounting box 41 to drive the distribution bin 2 and the discharge pipes 5 to move around the cavity 125. The discharge port of the injection pipe 3 is connected to the distribution bin 2 and is used to inject metal powder into the distribution bin 2.

[0034] When the metal powder is injected into the cavity 125 of the lower mold 12, the push-pull cylinder 11 drives the mounting plate 4 to move above the lower mold 12, so that the discharge pipe 5 is aligned with the cavity 125 of the lower mold 12, the injection pipe 3 injects the metal powder into the distribution bin 2, and the metal powder is distributed to the four discharge pipes 5 from the distribution bin 2; at the same time, the driving mechanism 6 drives the distribution bin 2 to rotate, and the distribution bin 2 drives the four discharge pipes 5 to rotate together, and the discharge pipe 5 moves around the circumference of the cavity 125, so that the metal powder can be directly discharged into the cavity 125, and the metal powder can directly fall into the cavity 125, and the powder accumulation on the top surface of the lower mold 12 can be controlled by the quantitative discharge of the discharge pipe 5, so that the powder accumulation on the top surface of the lower mold 12 is greatly reduced, thereby reducing the pollution of the metal powder to the equipment and the environment.

[0035] The distribution bin 2 comprises a cross-shaped distribution box 21, four distribution pipes 22 and a feeding pipe 23; the four distribution pipes 22 are arranged on the edge portion of the bottom surface of the cross-shaped distribution box 21, the bottom ends of the four distribution pipes 22 are outwardly inclined, and the four distribution pipes 22 correspond to the four ends of the cross-shaped distribution box 21 one by one; the four distribution pipes 22 are respectively connected to the top ends of the four discharge pipes 5; and the bottom end of the feeding pipe 23 is connected to the top surface of the cross-shaped distribution box 21, and the end of the injection pipe 3 is rotatably arranged at the top end of the feeding pipe 23.

[0036] When the injection pipe 3 injects the metal powder into the feeding pipe 23, the metal powder enters the cross-shaped distribution box 21, is guided to the four ends by the cross-shaped distribution box 21, and is discharged to the discharge pipe 5 by the distribution pipe 22 connected to the bottom of the four ends of the cross-shaped distribution box 21, so that the distribution bin 2 can uniformly and quickly discharge the material to the discharge pipe 5, and the discharge pipe 5 can stably and continuously supply the material to the cavity 125 during the rotation around the cavity 125.

[0037] The inner bottom surface of the cross-shaped distribution box 21 is raised to the middle to form a sharp cone 211, four guide portions 212 are connected to the inner top portions of the four corners of the cross-shaped distribution box 21, and the top surface of the guide portion 212 is an inclined arc surface.

[0038] After the feeding pipe 23 enters the metal powder, the metal powder falls into the cross-shaped distribution box 21, and the falling powder falls to the four ends of the cross-shaped distribution box 21 under the cooperation of the guide portions 212, and the metal powder moves to the end portion of the cross-shaped distribution box 21 under the action of the sharp cone 211, so as to facilitate the flow of the metal powder into the distribution pipe 22.

[0039] The middle position of the bottom surface of the cross-shaped distribution box 21 is connected with a vertical rod 213, the bottom end of the vertical rod 213 is connected with four support plates 24 parallel to the top surface of the workbench 1; the end of the four support plates 24 away from the vertical rod 213 is provided with a strip-shaped groove 241 for the horizontal sliding of the discharge pipe 5; the top of the discharge pipe 5 is provided with a wedge-shaped bin 51, the wedge-shaped bin 51 is arranged along the length direction of the support plate 24, the bottom of the wedge-shaped bin 51 is communicated with the top of the discharge pipe 5, the top of the wedge-shaped bin 51 is open, and the bottom end of the distribution pipe 22 extends into the top of the wedge-shaped bin 51; the bottom surface of the wedge-shaped bin 51 slides on the top surface of the support plate 24, the peripheral surface of the discharge pipe 5 is connected with a limiting ring 52, and the limiting ring 52 slides on the bottom surface of the support plate 24; the support plate 24 is provided with a driving assembly 53 for driving the sliding of the discharge pipe 5.

[0040] The driving assembly 53 comprises a screw rod 531 and a rotating seat 532, the screw rod 531 penetrates into the strip-shaped groove 241 from the end of the support plate 24, the screw rod 531 is threadedly connected with the end of the support plate 24, and the rotating seat 532 is installed on the peripheral surface of the discharge pipe 5.

[0041] When different gear ring 01 molds are replaced, the size of the gear ring 01 changes, the screw rod 531 is rotated, the screw rod 531 drives the discharge pipe 5 to slide in the strip-shaped groove 241, the discharge pipe 5 drives the wedge-shaped bin 51 to move, and the bottom end of the distribution pipe 22 is always in the wedge-shaped bin 51 in the movement process; it is guaranteed that the metal powder leaked from the distribution pipe 22 can fall into the wedge-shaped bin 51, so that the discharge pipe 5 continuously discharges, and meanwhile the position of the discharge pipe 5 can be changed to adapt to molds with different diameters of the gear ring 01.

[0042] The support plate 24 is connected with a connecting block 7, a sliding rod 71 is slidably arranged in the connecting block 7, the sliding rod 71 and the discharge pipe 5 are on the same circular arc, the top end of the sliding rod 71 is connected with a sliding plate 72 slidably connected with the connecting block 7; the bottom end of the sliding rod 71 is connected with a connecting plate 73, the bottom surface of the connecting plate 73 is connected with a scraping plate 74, the two ends of the scraping plate 74 are bent to obtuse angles towards the discharge pipe 5, and the scraping plate 74 is arranged along the movement track of the discharge pipe 5; a spring 75 is sleeved on the sliding rod 71, one end of the spring 75 is pressed against the connecting block 7, and the other end of the spring 75 is pressed against the connecting plate 73; the mounting plate 4 is provided with a lifting mechanism 8 for driving the lifting of the mounting box 41.

[0043] The driving mounting box 41 is lowered, the mounting box 41 drives the distribution bin 2 to be lowered, the distribution bin 2 drives the supporting plate 24 to be lowered, the supporting plate 24 drives the discharge pipe 5 and the connecting block 7 to be lowered, the connecting block 7 drives the slide rod 71 to be lowered, the slide rod 71 drives the connecting plate 73 to be lowered, the connecting plate 73 drives the scraper 74 to be lowered, the scraper 74 contacts the top surface of the lower mold 12, the scraper 74 presses the spring 75 through the connecting plate 73, so that the scraper 74 keeps contact pressure with the top surface of the lower mold 12, and the bottom end of the discharge pipe 5 is close to the cavity 125; in the rotating process of the discharge pipe 5 around the cavity 125, the metal powder poured on the top surface of the lower mold 12 is scraped into the cavity 125 through the scraper 74, and the stacked metal powder in the cavity 125 can be scraped flat by the scraper 74 after the metal powder in the cavity 125 is accumulated.

[0044] The bottom surface of the discharge pipe 5 is connected with two symmetrical positioning pins 54, the two positioning pins 54 are rotationally connected with two rotating plates 55, one end of the two rotating plates 55 is connected with an arc-shaped plate 56, and the inner arc surface of the arc-shaped plate 56 is attached to the bottom surface of the discharge pipe 5; the end, away from the arc-shaped plate 56, of the rotating plate 55 is connected with a connecting pin 551, and the end of the positioning pin 54 is rotationally connected with the bending part of a bending plate 57, one end of the bending plate 57 is connected to the connecting pin 551, and the bending plate 57 is an obtuse angle; the top surface of the connecting plate 73 is connected with two connecting rods 731, the top of the connecting rod 731 is bent towards the discharge pipe 5 and the end surface of the connecting rod 731 is connected with a rotating pin 732, and the end, away from the connecting pin 551, of the bending plate 57 is provided with a waist-shaped hole 571 for the rotating pin 732 to move.

[0045] When the discharge pipe 5 is lowered, the arc-shaped plate 56 is attached to the bottom surface of the discharge pipe 5 to block the leakage of the metal powder; when the discharge pipe 5 is lowered, the scraper 74 is hindered by the lower mold 12, the scraper 74 moves upward relative to the discharge pipe 5, the scraper 74 drives the connecting plate 73 to rise, the connecting plate 73 drives the connecting rod 731 to rise, the connecting rod 731 drives the rotating pin 732 to rise, the rotating pin 732 drives the bending plate 57 to rotate upward around the positioning pin 54, the rotating pin 732 slides in the waist-shaped hole 571, the other end of the bending plate 57 drives the rotating plate 55 to rotate downward through the connecting pin 551, the rotating plate 55 drives the arc-shaped plate 56 to rotate through the positioning pin 54, the arc-shaped plate 56 moves away from the bottom surface of the discharge pipe 5, so that the metal powder leaks out; when the discharge pipe 5 is raised, the connecting plate 73 descends relative to the discharge pipe 5 under the action of the spring 75 and the gravity of each component, the connecting plate 73 drives the rotating pin 732 to descend through the connecting rod 731, the rotating pin 732 drives the bending plate 57 to rotate downward around the positioning pin 54, the bending plate 57 drives the connecting pin 551 to rotate upward, the connecting pin 551 drives the rotating plate 55 to rotate downward around the positioning pin 54, so that the arc-shaped plate 56 is attached to the bottom surface of the discharge pipe 5, the arc-shaped plate 56 blocks the material of the discharge pipe 5, and the slide plate 72 in the connecting block 7 limits the slide rod 71.

[0046] The driving mechanism 6 comprises a motor 61, a worm 62 and a worm wheel 63; the motor 61 is mounted on the side of the mounting box 41, one end of the worm 62 is connected to the output shaft of the motor 61, the worm 62 penetrates into the mounting box 41, both ends of the worm 62 are rotatably connected to the inner wall of the mounting box 41, the worm wheel 63 is sleeved on the peripheral surface of the cross-shaped distribution box 21, the worm 62 and the worm wheel 63 are in meshing connection, and the top end and the bottom end of the cross-shaped distribution box 21 are both connected with the inner ring of a bearing 64, and the outer ring of the bearing 64 is connected to the inner wall of the mounting box 41.

[0047] The motor 61 drives the worm 62 to rotate, the worm 62 drives the worm wheel 63 to rotate, and the worm wheel 63 drives the cross-shaped distribution box 21 to rotate through the bearing 64.

[0048] The lifting mechanism 8 comprises a U-shaped plate 81, a lifting cylinder 82 and a push-pull plate 83, both ends of the U-shaped plate 81 are connected to the top surface of the mounting plate 4, the lifting cylinder 82 is mounted on the top surface of the U-shaped plate 81, the push-pull plate 83 is connected to the side of the mounting box 41, and the bottom end of the piston rod of the lifting cylinder 82 is connected to the top surface of the push-pull plate 83; the top surface of the mounting box 41 is connected with a guide rod 84, the guide rod 84 penetrates through the top surface of the U-shaped plate 81; and the top surface of the mounting plate 4 is provided with an opening 401 for the mounting box 41 and the motor 61 to penetrate through.

[0049] When it is necessary to drive the mounting box 41 to lift, the lifting cylinder 82 drives the push-pull plate 83 to lift, the push-pull plate 83 can drive the mounting box 41 to lift, and the mounting box 41 vertically slides through the guide rod 84.

[0050] The feeding pipe 23 penetrates through the U-shaped plate 81, and the feeding pipe 23 can rotate in the U-shaped plate 81; and the piston rod of the push-pull cylinder 11 is connected to the top surface of the mounting plate 4 through a connecting frame 111.

[0051] A protection frame 42 is arranged around the mounting plate 4, the bottom surface of the protection frame 42 is attached to the top surface of the workbench 1, the top surface of the protection frame 42 is connected with a limiting plate 421 on each side, the top surface of the mounting plate 4 is connected with a guide rod 43 on each side, and the guide rods 43 on the two sides penetrate through the limiting plates 421 on the two sides respectively; the workbench 1 is provided with a discharge port 13 between the push-pull cylinder 11 and the lower mold 12, and the discharge port 13 communicates the top surface and the bottom surface of the workbench 1.

[0052] After the cavity 125 is filled with metal powder, the push-pull cylinder 11 pulls back the mounting plate 4, the mounting plate 4 drives the protection frame 42, the protection frame 42 scrapes a small amount of metal powder on the workbench 1 through the bottom surface, when the protection frame 42 moves to the discharge port 13 on the side away from the push-pull cylinder 11, the metal powder falls into the discharge port 13, the metal powder is collected through the discharge port 13, and is used again.

[0053] The workbench 1 is provided with a stand 9 at both ends of the bottom surface, and the stand 9 is used to support the workbench 1; the lower die 12 comprises a base plate 121, a forming ring 122, a forming column 123 and a supporting ring 124; the base plate 121 is installed on the top surface of the stand 9 below the lower die 12, and the workbench 1 is pressed on the top surface of the base plate 121; the workbench 1 is provided with a mounting groove 14 for mounting the forming ring 122, the bottom peripheral surface of the forming ring 122 is connected with a first connecting ring 1221, the supporting ring 124 is installed in the forming ring 122 and the outer peripheral surface thereof is attached to the inner peripheral surface of the forming ring 122; the forming column 123 is installed in the supporting ring 124 and the peripheral surface thereof is attached to the inner peripheral surface of the supporting ring 124, the bottom peripheral surface of the forming column 123 is connected with a second connecting ring 1231, the top surface of the second connecting ring 1231 is attached to the bottom surface of the first connecting ring 1221, and the bottom surface of the supporting ring 124 is attached to the top surface of the second connecting ring 1231; the first hydraulic cylinder 91 is installed in the stand 9, and the four arc-shaped push plates 92 are connected to the end of the hydraulic rod of the first hydraulic cylinder 91, the four arc-shaped push plates 92 are aligned with the supporting ring 124, the four arc-shaped push plates 92 are uniformly arranged around the circumference of the supporting ring 124, and the top end of the arc-shaped push plate 92 penetrates through the base plate 121 and the second connecting ring 1231 and is connected to the bottom surface of the supporting ring 124; the cavity formed between the forming ring 122 and the forming column 123 is a mold cavity 125, and the outer diameter of the discharge pipe 5 is smaller than the width of the mold cavity 125.

[0054] The support frame 10 is horizontally arranged above the workbench 1, the second hydraulic cylinder 101 is installed at the middle position of the support frame 10, the lower pressing ring 102 is connected to the end of the hydraulic rod of the second hydraulic cylinder 101, the lower pressing ring 102 is an upper die, the lower pressing ring 102 is aligned with the supporting ring 124, and the inner diameter of the lower pressing ring 102 is equal to the outer diameter of the supporting ring 124.

[0055] After the metal powder fills the mold cavity 125, the mounting plate 4 is removed, the second hydraulic cylinder 101 drives the lower pressing ring 102 to descend, the lower pressing ring 102 presses the metal powder in the mold cavity 125, the forming ring 122 and the forming column 123 limit the size of the metal powder, the lower pressing ring 102 cooperates with the supporting ring 124 to press and form the gear ring 01, and when the required pressure is reached, the gear ring 01 can be pressed and formed; the second hydraulic cylinder 101 drives the lower pressing ring 102 to rise, the first hydraulic cylinder 91 drives the arc-shaped push plate 92 to rise, the arc-shaped push plate 92 pushes the supporting ring 124 upwards until the top surface of the supporting ring 124 is flush with the top surface of the workbench 1, and then the formed gear ring 01 can be taken out.

[0056] The implementation principle of the sensor ring gear powder metallurgy device is as follows: when the metal powder is injected into the cavity 125 of the lower mold 12, the installation plate 4 is driven to move to the upper side of the lower mold 12 by the push-pull cylinder 11, so that the discharge pipe 5 is aligned with the cavity 125 of the lower mold 12, the injection pipe 3 injects the metal powder into the distribution bin 2, and the metal powder is distributed to the four discharge pipes 5 from the distribution bin 2; at the same time, the distribution bin 2 is driven to rotate by the driving mechanism 6, the four discharge pipes 5 are driven to rotate together by the distribution bin 2, the discharge pipes 5 move around the circumference of the cavity 125, and the discharge pipes 5 can directly discharge the metal powder to the cavity 125, so that the metal powder can directly fall into the cavity 125, the powder accumulation amount in the lower mold 12 can be controlled by the quantitative discharge of the discharge pipes 5, the powder accumulation amount on the top surface of the lower mold 12 is greatly reduced, and therefore the pollution of the metal powder to the equipment and the environment can be reduced.

[0057] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sensor ring gear powder metallurgy device, characterized by: The utility model provides a kind of metal powder injection molding machine, including workbench (1), discharge pipe (5), distribution bin (2), injection pipe (3), mounting plate (4), push-pull cylinder (11);Workbench (1) top surface is equipped with lower mould (12), push-pull cylinder (11) is installed in one end of workbench (1), mounting plate (4) is connected in piston rod end portion of push-pull cylinder (11), and mounting plate (4) is active in lower mould (12) upper side;Mounting plate (4) is equipped with mounting box (41), distribution bin (2) is rotatably installed in mounting box (41), and discharge pipe (5) is provided with four, and discharge pipe (5) is arranged in lower mould (12) cavity (125) upper side, and four discharge pipes (5) are evenly distributed around cavity (125) circumference, and distribution bin (2) is communicated with discharge pipe (5), and mounting box (41) is equipped with drive mechanism (6) for driving distribution bin (2) to drive discharge pipe (5) to move around cavity (125) circumference;Injection pipe (3) discharge port is communicated with distribution bin (2), and injection pipe (3) is used to inject metal powder into distribution bin (2); Distribution bin (2) includes cross-shaped distribution box (21), distribution pipe (22) and feed pipe (23);Distribution pipe (22) is provided with four, and four distribution pipes (22) are communicated with cross-shaped distribution box (21) bottom surface edge portion, and four distribution pipes (22) are outwardly inclined and arranged at bottom end, and four distribution pipes (22) correspond to four ends of cross-shaped distribution box (21) one by one;Four distribution pipes (22) are respectively communicated with the top end of four discharge pipes (5);Feed pipe (23) bottom end is communicated with the top surface of cross-shaped distribution box (21), and injection pipe (3) end is rotatable in feed pipe (23) top end; The inside bottom surface of cross-shaped distribution box (21) is raised to form a sharp cone (211) towards the middle, the bottom inner wall of feed pipe (23) is connected with four guide portions (212), the four guide portions (212) are respectively connected to the top of the four corners inside the cross-shaped distribution box (21), and the top surface of the guide portion (212) is an inclined arc surface; The bottom surface of the cross-shaped distribution box (21) is connected with a vertical rod (213) at the middle position, the vertical rod (213) is connected with four support plates (24) at the bottom end, and the four support plates (24) are parallel to the top surface of the workbench (1); The end portion of the four support plates (24) away from the vertical rod (213) is provided with a strip-shaped groove (241) for horizontal sliding of the discharge pipe (5); The top of the discharge pipe (5) is provided with a wedge-shaped bin (51), the wedge-shaped bin (51) is arranged along the length direction of the support plate (24), the bottom of the wedge-shaped bin (51) is communicated with the top of the discharge pipe (5), the top of the wedge-shaped bin (51) is open, and the bottom end of the distribution pipe (22) extends into the top of the wedge-shaped bin (51); The bottom surface of the wedge-shaped bin (51) slides on the top surface of the support plate (24), the peripheral surface of the discharge pipe (5) is connected with a limiting ring (52), and the limiting ring (52) slides on the bottom surface of the support plate (24); The driving assembly (53) for driving the sliding of the discharge pipe (5) is mounted on the support plate (24); The support plate (24) is connected with a connecting block (7) on the side, a sliding rod (71) is arranged in the connecting block (7) in a sliding mode, the sliding rod (71) and the discharge pipe (5) are on the same circular arc, the top end of the sliding rod (71) is connected with a sliding plate (72), the sliding plate (72) is connected with the connecting block (7) in a sliding mode; the bottom end of the sliding rod (71) is connected with a connecting plate (73), the bottom surface of the connecting plate (73) is connected with a scraper (74), the both ends of the scraper (74) are bent to an obtuse angle towards the discharge pipe (5), and the scraper (74) is arranged along the movement track of the discharge pipe (5); a spring (75) is arranged on the sliding rod (71) in a sleeving mode, one end of the spring (75) is pressed against the connecting block (7), and the other end of the spring (75) is pressed against the connecting plate (73); the mounting plate (4) is provided with a lifting mechanism (8) for driving the mounting box (41) to lift. The bottom periphery of the discharge pipe (5) is connected with two symmetrical positioning pins (54), the two positioning pins (54) are rotatably connected with rotating plates (55), one end of the two rotating plates (55) is connected with an arc-shaped plate (56), and the inner arc surface of the arc-shaped plate (56) is attached to the bottom surface of the discharge pipe (5); the end, away from the arc-shaped plate (56), of the rotating plate (55) is connected with a connecting pin (551), the end of the positioning pin (54) is rotatably connected with the bending part of a bending plate (57), one end of the bending plate (57) is connected to the connecting pin (551), and the bending plate (57) is an obtuse angle; the top surface of the connecting plate (73) is connected with two connecting rods (731), the top of the connecting rod (731) is bent towards the discharge pipe (5) and the end surface is connected with a rotating pin (732), and the end, away from the connecting pin (551), of the bending plate (57) is provided with a waist-shaped hole (571) for the rotating pin (732) to move.

2. A sensor ring powder metallurgy device according to claim 1, characterized in that: The driving assembly (53) comprises a screw rod (531) and a rotating seat (532), the screw rod (531) penetrates into the strip-shaped groove (241) from the end of the support plate (24), the screw rod (531) is threadedly connected to the end of the support plate (24), and the rotating seat (532) is mounted on the periphery of the discharge pipe (5).

3. A sensor ring powder metallurgy device according to claim 1, characterized in that: The driving mechanism (6) comprises a motor (61), a worm (62) and a worm wheel (63); the motor (61) is mounted on the side of the mounting box (41), one end of the worm (62) is connected to the output shaft of the motor (61), the worm (62) penetrates into the mounting box (41), both ends of the worm (62) are rotatably connected to the inner wall of the mounting box (41), the worm wheel (63) is arranged on the periphery of the cross-shaped distribution box (21), the worm (62) is engaged with the worm wheel (63), and the top end and the bottom end of the cross-shaped distribution box (21) are both connected with the inner ring of a bearing (64), and the outer ring of the bearing (64) is connected to the inner wall of the mounting box (41).

4. A sensor ring powder metallurgy device according to claim 1, characterized in that: The lifting mechanism (8) comprises a U-shaped plate (81), a lifting cylinder (82) and a push-pull plate (83), both ends of the U-shaped plate (81) are connected to the top surface of the mounting plate (4), the lifting cylinder (82) is installed on the top surface of the U-shaped plate (81), the push-pull plate (83) is connected to the side surface of the mounting box (41), and the bottom end of the piston rod of the lifting cylinder (82) is connected to the top surface of the push-pull plate (83); the top surface of the mounting box (41) is connected with a guide rod (84), and the guide rod (84) penetrates through the top surface of the U-shaped plate (81); the top surface of the mounting plate (4) is provided with an opening (401) for the mounting box (41) and the motor (61) to penetrate through.

5. A sensor ring gear powder metallurgy device according to claim 1, characterized in that: A protective frame (42) is arranged around the mounting plate (4), the bottom surface of the protective frame (42) is attached to the top surface of the workbench (1), the top surface of the protective frame (42) is connected with a limiting plate (421) on each side, the top surface of the mounting plate (4) is connected with a guide rod (43) on each side, and the guide rods (43) on the two sides penetrate through the limiting plates (421) on the two sides; the workbench (1) is provided with a discharge port (13) between the push-pull cylinder (11) and the lower die (12), and the discharge port (13) communicates the top surface and the bottom surface of the workbench (1).

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