Metal powder compacting device for oil-impregnated bearing production

Abstract

The present application relates to bearing cover forming device technical field, especially to a kind of metal powder compaction device for oil-containing bearing production, including base, the base upper end is equipped with bottom plate, the right side of bottom plate upper end is equipped with pusher motor, the left side of pusher motor is equipped with injection mechanism, the left side of the base upper surface is equipped with guard plate, the left side of the guard plate is equipped with baffle, the upper surface of pusher motor is fixedly installed with fixed template in the lower end of guard plate, the side of fixed template is equipped with die closing mechanism, the right side of die closing mechanism is equipped with fixed plate, the upper surface of bottom plate is located between fixed template and fixed plate and is equipped with through slot, the lower end of through slot is equipped with feeding mechanism.The present application is driven by rotating motor driving follow-up gear, and the threaded rod fixedly installed on the upper end of follow-up gear is accompanied by rotation to remove the formed bearing cover, vibration is carried out by vibration machine arranged at the lower end of clamping seat, bearing cover is outwardly conveyed, subsequent operation is facilitated for staff.

Description

Technical Field

[0001] This invention relates to the field of bearing cap forming equipment, and more particularly to a metal powder compaction device for the production of oil-impregnated bearings. Background Technology

[0002] Oil-impregnated bearings, also known as porous bearings, are sleeve bearings that use lubricating oil as a lubricant. The oil-impregnated bearing cap is a key component manufactured using metal powder stamping technology.

[0003] Based on the inner depth of the bearing cap, there are two common demolding methods on the market: forced demolding and rotary demolding. Conical bearing caps have a cross-shaped reinforcement structure inside, with limited deformation space and relatively high requirements for thread precision. Traditional forced demolding is not suitable for demolding conical bearing caps. Rotary demolding with metal powder injection molds can be used for demolding products with special shapes or structures, but it cannot be directly applied to bearing caps with internal cross-shaped reinforcement structures. It requires specific design based on the reinforcement structure of the bearing cap. Moreover, existing bearing cap production methods are mostly applicable to general flat bearing caps and cannot collect powder in a fixed orientation according to the shape characteristics of bearing caps with reinforcement structures, which increases subsequent production costs. Therefore, a metal powder compaction device for the production of oil-impregnated bearings is proposed. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and to propose a metal powder compaction device for the production of oil-impregnated bearings.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a metal powder compaction device for oil-impregnated bearing production, comprising a base, a bottom plate at the upper end of the base, a pushing motor at the upper right side of the bottom plate, an injection mechanism at the left side of the pushing motor, a protective plate at the left side of the upper surface of the base, a baffle at the left side of the protective plate, a fixed template fixedly installed at the lower end of the protective plate on the upper surface of the pushing motor, a mold closing mechanism at one side of the fixed template, a fixed plate at the right side of the mold closing mechanism, a through groove between the fixed template and the fixed plate at the upper surface of the bottom plate, and a feeding mechanism at the lower end of the through groove.

[0006] Preferably, the mold closing mechanism includes a mold closing hydraulic cylinder fixedly installed on the left side of the fixed template. Push rods are installed through all four corners of the fixed template. A movable template is slidably installed on the four push rods. The output end of the mold closing hydraulic cylinder is installed through the fixed template on the rear surface of the movable template. A support frame is fixedly installed on the right side of the movable template. An outer template is provided on the right side of the support frame. A demolding mechanism is provided inside the outer template.

[0007] Preferably, the demolding mechanism includes a rotating motor fixedly installed on the left side of the outer template. The output end of the rotating motor is connected to a drive gear through the support frame. A follower gear is rotatably installed on one side of the drive gear. A limiting rod is provided at the center of both the drive gear and the follower gear. The limiting rod is installed between the support frame and the outer template. The limiting rod located at the center of the follower gear is connected to the outer template and fixedly installed with a threaded rod. A cross reset mechanism is provided on the outer surface of the outer template above the follower gear.

[0008] Preferably, the cross reset mechanism includes four slots at equal angles on the outer surface of the outer template, and the outer template has a T-shaped groove at the outer end of each slot, with a straight plate inside the slot.

[0009] Preferably, each of the straight plates is provided with a supporting round rod on the side near the T-slot, and the supporting round rod is fitted with a spring inside the T-slot. A structural block is fixedly installed on the upper surface of the adjacent end of each straight plate.

[0010] Preferably, the feeding mechanism includes a collection box fixedly installed at the lower end of the through groove, a card seat fixedly installed inside the collection box, guide slopes slidably installed on both sides of the card seat, a hanging frame fixedly installed on the lower surface of the collection box, a telescopic motor fixedly installed at the upper end of the hanging frame, and the output end of the telescopic motor fixedly installed on the lower surface of the guide slope.

[0011] Preferably, the card holder extends through one side of the collection box, a guide plate is fixedly installed inside the card holder, a vibration frame is fixedly installed at the lower outer end of the card holder outside the collection box, and a vibrator is fixedly installed inside the vibration frame.

[0012] Preferably, the injection mechanism includes a material cylinder fixedly installed on the left side of the pusher motor, one side of the material cylinder is fixedly installed on the rear surface of the fixing plate, a material inlet is fixedly installed on the upper right side of the material cylinder, and a screw is provided inside the material cylinder.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a rotating motor to drive a follower gear. A threaded rod fixedly installed on the upper end of the follower gear rotates to release the formed bearing cover. The cross-shaped reinforcement structure at the bottom of the bearing cover is shaped by the cross reset mechanism on the surface of the outer template. The mold closing hydraulic cylinder presses the straight plate against the fixing plate. Four structural blocks installed at fixed angles move up and down in conjunction with the injection of metal powder. After the metal powder is injected, the moving template resets. The spring sleeved on the outside of the support round rod at the lower end of the straight plate performs elastic reset and demolds the plate in conjunction with the threaded rod. The feeding mechanism, driven by a vibratory motor, works in conjunction with a telescopic motor at the bottom to control the raising and lowering of the guide slope. This lifts the bearing cover that has fallen from the trough into the collection box. The sloping guide slope, together with the clamp, adjusts the angle of the bearing cover so that the tip of the bearing cover faces down and the bottom faces up. The vibratory motor, located at the lower end of the clamp, vibrates the bearing cover and transports it outward, making it easier for workers to perform subsequent operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a metal powder compaction device for the production of oil-impregnated bearings according to the present invention; Figure 2 This is a schematic diagram of another perspective of the metal powder compaction device for the production of oil-impregnated bearings according to the present invention; Figure 3 This is an exploded view of a metal powder compaction device for producing oil-impregnated bearings according to the present invention. Figure 4 This invention relates to a mold closing mechanism for a metal powder compaction device used in the production of oil-impregnated bearings. Figure 5 This invention relates to an outer template for a metal powder compaction device used in the production of oil-impregnated bearings. Figure 6 This invention relates to a demolding mechanism for a metal powder compaction device used in the production of oil-impregnated bearings. Figure 7 This invention relates to a feeding mechanism for a metal powder compaction device used in the production of oil-impregnated bearings. Figure 8 This invention relates to a metal powder compaction device for the production of oil-impregnated bearings. Figure 7 Enlarged view of point A in the middle.

[0015] In the diagram: 1. Base; 2. Material inlet; 3. Pusher motor; 4. Protective plate; 5. Baffle; 6. Mold closing hydraulic cylinder; 7. Fixed template; 8. Moving template; 9. Fixed plate; 10. Push rod; 11. Material cylinder; 12. Screw; 13. Rotating motor; 14. Support frame; 15. Outer template; 16. T-slot; 17. Slot; 18. Straight plate; 19. Supporting round rod; 20. Spring; 21. Structural block; 22. Threaded rod; 23. Drive gear; 24. Follower gear; 25. Limiting rod; 26. Collection box; 27. Guide slope; 28. Slot; 29. ​​Hanger; 30. Telescopic motor; 31. Guide plate; 32. Vibrating frame; 33. Vibrator; 34. Through slot; 35. Base plate. Detailed Implementation

[0016] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0017] like Figures 1-8 The device shown is a metal powder compaction device for producing oil-impregnated bearings. It includes a base 1, a bottom plate 35 at the upper end of the base 1, a pusher motor 3 at the right side of the upper end of the bottom plate 35, an injection mechanism at the left side of the pusher motor 3, a protective plate 4 at the left side of the upper surface of the base 1, a baffle 5 at the left side of the protective plate 4, a fixed template 7 fixedly installed at the lower end of the protective plate 4 on the upper surface of the pusher motor 3, a mold closing mechanism at one side of the fixed template 7, a fixed plate 9 at the right side of the mold closing mechanism, and a through groove 34 between the fixed template 7 and the fixed plate 9 on the upper surface of the bottom plate 35. A feeding mechanism is provided at the lower end of the through groove 34.

[0018] like Figure 2 As shown, the injection mechanism includes a material cylinder 11 fixedly installed on the left side of the pusher motor 3. One side of the material cylinder 11 is fixedly installed on the rear surface of the fixed plate 9. A material port 2 is fixedly installed on the upper right side of the material cylinder 11. A screw 12 is provided inside the material cylinder 11. The material cylinder 11 is driven by the pusher motor 3 to transport the raw material into the fixed plate 9. The metal powder injection process is completed by the mold closing mechanism.

[0019] like Figures 3-4 As shown, the mold closing mechanism includes a mold closing hydraulic cylinder 6 fixedly installed on the left side of the fixed template 7. Ejector rods 10 are installed through all four corners of the fixed template 7. The four ejector rods 10 are slidably installed on the movable template 8. The output end of the mold closing hydraulic cylinder 6 is installed through the fixed template 7 on the rear surface of the movable template 8. A support frame 14 is fixedly installed on the right side of the movable template 8. An outer template 15 is provided on the right side of the support frame 14. A demolding mechanism is provided inside the outer template 15.

[0020] like Figures 5-6 As shown, the demolding mechanism includes a rotating motor 13 fixedly installed on the left side of the outer template 15. The output end of the rotating motor 13 passes through the support frame 14 and is equipped with a drive gear 23. A follower gear 24 is rotatably installed on one side of the drive gear 23. A limit rod 25 is provided at the center of both the drive gear 23 and the follower gear 24. The limit rod 25 is installed between the support frame 14 and the outer template 15. The limit rod 25 located at the center of the follower gear 24 passes through the outer template 15 and is fixedly installed with a threaded rod 22. A cross reset mechanism is provided on the outer surface of the outer template 15 above the follower gear 24. The cross reset mechanism is provided through four straight plates 18 installed at right angles. A structural block 21 is fixedly installed on the upper end of the side of each straight plate 18 that is close to each other. The four structural blocks 21 cooperate with the outer template 15 to shape a bearing cover with a cross-shaped structure inside.

[0021] The cross reset mechanism includes four slots 17 at equal angles on the outer surface of the outer template 15. The outer template 15 has a T-shaped groove 16 at the outer end of each slot 17, and a straight plate 18 is provided inside the slot 17.

[0022] Each straight plate 18 is provided with a support rod 19 on the side near the T-slot 16, and the support rod 19 is fitted with a spring 20 inside the T-slot 16. A structural block 21 is fixedly installed on the upper surface of the adjacent end of each straight plate 18. After the molding is completed, the spring 20 elastically resets to make the straight plate 18 protrude, and cooperates with the threaded rod 22 to demold the formed bearing cover.

[0023] like Figures 7-8 As shown, the feeding mechanism includes a collection box 26 fixedly installed at the lower end of the through groove 34. A card seat 28 is fixedly installed inside the collection box 26. Guide slopes 27 are slidably installed on both sides of the card seat 28. A bracket 29 is fixedly installed on the lower surface of the collection box 26. A telescopic motor 30 is fixedly installed on the upper end of the bracket 29. The output end of the telescopic motor 30 is fixedly installed on the lower surface of the guide slope 27. The telescopic motor 30 drives the guide slope 27 to rise and fall, and collects the bearing covers on both sides to the upper end of the card seat 28.

[0024] The card holder 28 extends through one side of the collection box 26. A guide plate 31 is fixedly installed inside the card holder 28. A vibrating frame 32 is fixedly installed at the lower outer side of the card holder 28 and the vibrating machine 33 is fixedly installed inside the vibrating frame 32. The vibrating machine 33 drives the vibrating machine 32 to vibrate, so that the bearing cover collected on the upper end of the guide plate 31 is conveyed.

[0025] Working principle: The operator injects metal powder into the material inlet 2, and the screw 12 is driven by the pusher motor 3 on one side to transport the raw material along the material cylinder 11. The heated raw material enters the fixed plate 9.

[0026] When metal powder is injected and the mold is closed, the mold closing mechanism is activated. The mold closing hydraulic cylinder 6 pushes the moving template 8 close to the fixed plate 9. A support frame 14 is provided on the right side of the moving template 8. An outer template 15 is fixedly installed on the right side of the support frame 14. The outer template 15 pushes against the fixed plate 9, and the screw 12 pushes the raw material into the interior of the outer template 15 for shaping. After cooling, the mold closing hydraulic cylinder 6 pulls the moving template 8 along the push rod 10. The rotating motor 13 fixedly installed at the rear end of the support frame 14 is activated. The rotating motor 13 drives the drive gear 23, which drives the follower gear 24 on one side to rotate. Both the drive gear 23 and the follower gear 24 have a limit rod 25 at their center positions, which fixes their positions. A threaded rod 22 is fixedly installed on the upper end of the limit rod 25 located on the upper surface of the follower gear 24. The formed bearing cover is rotated and demolded by rotation. Since the bearing cover has a cross-shaped reinforcement structure on the inside, in order to avoid damaging the structural integrity, the present invention provides a cross reset mechanism on the outside of the outer template 15 to facilitate shaping and demolding.

[0027] When the mold is closed and shaped, the outer template 15 presses against the fixed plate 9 and the straight plate 18. The straight plate 18 is forced into the slot 17. The upper surface of the four straight plates 18 with close proximity is fixedly installed with a grooving structural block 21. After the metal powder is injected and cooled, the outer template 15 moves away from the fixed plate 9 and is fixedly installed on the lower surface of the outer side of the four straight plates 18. The spring 20 of the support rod 19 located inside the T-slot 16 is reset, so that the straight plate 18 protrudes and rotates with the threaded rod 22 to demold the formed bearing cover.

[0028] After demolding, the bearing caps fall to the lower end of the through groove 34. The guide slope 27 is driven up and down by the telescopic motor 30 at the bottom to collect the bearing caps on both sides to the upper end of the holder 28. Due to the triangular structure of the bearing caps, they are collected at the upper end of the holder 28 with the pointed end facing down and the bottom facing up. The holder 28 is equipped with a guide plate 31. The vibrator 33, which is fixedly installed at the lower end of the holder 28, makes the guide plate 31 vibrate and transport the bearing caps, which is convenient for the staff to collect and process.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A metal powder compaction device for oil-impregnated bearing production, comprising a base (1), characterized in that: The base (1) is provided with a bottom plate (35) at the upper end. A pusher motor (3) is provided on the right side of the upper end of the bottom plate (35). A protective plate (4) is provided on the upper end of the bottom plate (35) to the left of the pusher motor (3). A fixed template (7) is fixedly installed on the upper surface of the base (1) at the lower end of the protective plate (4). A baffle (5) is provided on the left side of the protective plate (4). A mold closing mechanism is provided on one side of the fixed template (7). A fixed plate (9) is provided on the right side of the mold closing mechanism. A through groove (34) is opened on the upper surface of the bottom plate (35) between the fixed template (7) and the fixed plate (9). A feeding mechanism is provided at the lower end of the through groove (34). The mold closing mechanism includes a mold closing hydraulic cylinder (6) fixedly installed on the left side of the fixed template (7). The fixed template (7) has push rods (10) installed through all four corners. The four push rods (10) are slidably installed on the movable template (8). The output end of the mold closing hydraulic cylinder (6) is installed through the fixed template (7) on the rear surface of the movable template (8). The right side of the movable template (8) is fixedly installed with a support frame (14). The right side of the support frame (14) is provided with an outer template (15). The outer template (15) is provided with a demolding mechanism inside. The demolding mechanism includes a rotating motor (13) fixedly installed on the left side of the outer template (15). The output end of the rotating motor (13) passes through the support frame (14) and is equipped with a drive gear (23). A follower gear (24) is rotatably installed on one side of the drive gear (23). A limit rod (25) is provided at the center of both the drive gear (23) and the follower gear (24). The limit rod (25) is installed between the support frame (14) and the outer template (15). The limit rod (25) located at the center of the follower gear (24) passes through the outer template (15) and is fixedly equipped with a threaded rod (22). A cross reset mechanism is provided on the outer surface of the outer template (15) above the follower gear (24). The cross reset mechanism includes four slots (17) at equal angles on the outer surface of the outer template (15). The outer template (15) has a T-shaped groove (16) at the outer end of each slot (17). A straight plate (18) is provided inside the slot (17). Each of the straight plates (18) is provided with a support rod (19) on the side near the T-slot (16), and the support rod (19) is fitted with a spring (20) inside the T-slot (16). A structural block (21) is fixedly installed on the upper surface of the adjacent end of each of the straight plates (18).

2. The metal powder compaction device for oil-impregnated bearing production according to claim 1, characterized in that: The feeding mechanism includes a collection box (26) fixedly installed at the lower end of the through groove (34). A card seat (28) is fixedly installed inside the collection box (26). A guide slope (27) is slidably installed on both sides of the card seat (28). A bracket (29) is fixedly installed on the lower surface of the collection box (26). A telescopic motor (30) is fixedly installed on the upper end of the bracket (29). The output end of the telescopic motor (30) is fixedly installed on the lower surface of the guide slope (27).

3. The metal powder compaction device for oil-impregnated bearing production according to claim 2, characterized in that: The card holder (28) extends through one side of the collection box (26). A guide plate (31) is fixedly installed inside the card holder (28). A vibration frame (32) is fixedly installed at the lower end of the card holder (28) on the outside of the collection box (26). A vibrator (33) is fixedly installed inside the vibration frame (32).

4. The metal powder compaction device for oil-impregnated bearing production according to claim 1, characterized in that: The pusher motor (3) has a material cylinder (11) fixedly installed on its left side, and the other end of the material cylinder (11) is fixedly installed on the right side surface of the fixing plate (9). The material cylinder (11) has a material inlet (2) fixedly installed on the upper right side. The material cylinder (11) has a screw (12) inside.

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