Powder metallurgy copper infiltration auxiliary device

Abstract

The utility model discloses a powder metallurgy copper infiltration auxiliary device which comprises a bottom plate, a first frame body, a second frame body and a top plate which are arranged from bottom to top, the distance between the bottom plate and the first frame body is adjustable, the distance between the second frame body and the first frame body is adjustable, and the distance between the top plate and the second frame body is adjustable. Corresponding inserting holes are formed in the bottom of the first frame body, a plurality of sleeve rods are fixed to the bottom of the top plate and sleeved with a plurality of copper rings, a through hole is formed in the position, below the copper rings, of the second frame body, a copper ring stripping mechanism is arranged below the through hole, and a gear piece is arranged under the copper ring stripping mechanism. According to the powder metallurgy copper infiltration auxiliary device, copper rings on the tops of all gear pieces in the first frame body can be placed at a time, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to an auxiliary device for copper infiltration in powder metallurgy. Background Technique

[0002] Copper infiltration in powder metallurgy is a powder metallurgy technology, which is mainly used to improve the density and mechanical properties of powder metallurgy products. The copper infiltration process usually involves introducing copper into the powder metallurgy product in a certain form to fill the pores, thereby improving the overall performance of the material. The existing copper infiltration technology generally places copper blocks or copper rings on the gear parts and sends them into a high-temperature furnace for calcination together with the powder metallurgy parts. The process of placing the copper rings or copper blocks on the gear parts requires manual operation. Workers use tweezers to pick up and place the copper rings or copper blocks, which is time-consuming. Therefore, an auxiliary device for copper infiltration in powder metallurgy is designed. Content of the Utility Model

[0003] The purpose of the utility model is to provide an auxiliary device for copper infiltration in powder metallurgy to solve the problem of low efficiency in manually placing copper blocks or copper rings above the gear parts as proposed in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an auxiliary device for copper infiltration in powder metallurgy, including a bottom plate, a first frame, a second frame and a top plate arranged from bottom to top. The distance between the bottom plate and the first frame is adjustable, the distance between the second frame and the first frame is adjustable, and the distance between the top plate and the second frame is adjustable. A plurality of guide posts are arranged on the top of the bottom plate, and corresponding jacks are arranged at the bottom of the first frame. A plurality of sleeve rods are fixed to the bottom of the top plate, and a plurality of copper rings are sleeved on the sleeve rods. A through hole is arranged below the second frame and below the copper rings, and a copper ring peeling mechanism is arranged below the through hole. A gear part is arranged directly below the copper ring peeling mechanism;

[0005] The copper ring peeling mechanism includes a sleeve. An annular groove is arranged on the inner wall of the sleeve. A plurality of annularly distributed steel balls are arranged in the groove. The outer edge of the steel ball extends out of the groove, but the steel ball is partially limited in the groove. A first spring is filled between the steel ball and the groove.

[0006] Preferably, the guide post vertically penetrates through the central shaft hole of the gear part and the copper ring.

[0007] Preferably, the guide post is cylindrical and the outer diameter of the guide post is the same as the inner diameter of the central shaft hole of the gear part.

[0008] Preferably, a limiting post is arranged on the top of the second frame, and a second spring is sleeved on the limiting post. The top of the second spring abuts against the top plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] An auxiliary device for copper infiltration in powder metallurgy of the present utility model drops a copper ring onto the top of a gear part through a copper ring stripping mechanism, and can place the copper rings on the tops of all gear parts in the first frame at one time, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view of the present utility model;

[0012] Figure 2 is the structural schematic diagram of the copper ring stripping mechanism in the present utility model;

[0013] Figure 3 is the cross-sectional view taken along line A-A in the present utility model.

[0014] In the figure: 1, the first frame; 2, the bottom plate; 3, the groove; 4, the guide post; 5, the gear part; 6, the second frame; 7, the sleeve; 8, the top plate; 9, the sleeve rod; 10, the copper ring; 11, the first spring; 12, the steel ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1 - 3 , an auxiliary device for copper infiltration in powder metallurgy, including a bottom plate 2, a first frame 1, a second frame 6, and a top plate 8 arranged from bottom to top. The distance between the bottom plate 2 and the first frame 1 is adjustable, the distance between the second frame 6 and the first frame 1 is adjustable, the distance between the top plate 8 and the second frame 6 is adjustable. A plurality of guide posts 4 are arranged on the top of the bottom plate 2, and corresponding jacks are arranged at the bottom of the first frame 1. A plurality of sleeve rods 9 are fixed to the bottom of the top plate 8, and a plurality of copper rings 10 are sleeved on the sleeve rods 9. The second frame 6 is provided with a through hole below the copper ring 10, and a copper ring stripping mechanism is arranged below the through hole. A gear part 5 is arranged directly below the copper ring stripping mechanism;

[0017] Specifically, the copper ring stripping mechanism includes a sleeve 7. An annular groove 3 is arranged on the inner wall of the sleeve 7. A plurality of annularly distributed steel balls 12 are arranged in the groove 3. The outer edge of the steel ball 12 extends out of the groove 3, but the steel ball 12 is partially limited in the groove 3. A first spring 11 is filled between the steel ball 12 and the groove 3.

[0018] A limiting post is arranged on the top of the second frame 6, and a second spring is sleeved on the limiting post. The top of the second spring abuts against the top plate 8. Press the top plate 8 down to the limiting post, and exactly one copper ring 10 falls off from the sleeve rod 9. Release the top plate 8, and the second spring resets the top plate 8.

[0019] The guide post 4 penetrates through the central axis hole of the gear member 5 and the copper ring 10 in the vertical direction. The guide post 4 is cylindrical and the outer diameter of the guide post 4 is the same as the inner diameter of the central axis hole of the gear member 5. The guide post 4 is inserted into the jack, and then the gear member 5 is inserted onto the guide post 4. The copper rings 10 are sequentially conveyed onto the gear member 5 along the guide post 4 from the copper ring peeling mechanism. When a copper ring 10 is placed on all the gear members 5, the second frame 6 is removed and placed in a high-temperature furnace for calcination, and a new second frame 6 is placed above the first frame 1. The copper rings 10 melt at high temperature and penetrate into the gear member 5, improving the mechanical properties of the gear member 5.

[0020] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper infiltration auxiliary device for powder metallurgy, comprising a bottom plate (2), a first frame (1), a second frame (6) and a top plate (8) arranged from bottom to top, characterized in that: The bottom plate (2) is adjustable in distance relative to the first frame body (1), the second frame body (6) is adjustable in distance relative to the first frame body (1), the top plate (8) is adjustable in distance relative to the second frame body (6). A plurality of guide posts (4) are arranged on the top of the bottom plate (2), and corresponding jacks are arranged at the bottom of the first frame body (1). A plurality of sleeve rods (9) are fixed to the bottom of the top plate (8), and a plurality of copper rings (10) are sleeved on the sleeve rods (9). A through hole is arranged below the copper ring (10) on the second frame body (6), and a copper ring stripping mechanism is arranged below the through hole. A gear member (5) is arranged directly below the copper ring stripping mechanism; The copper ring stripping mechanism includes a sleeve (7). An annular groove is arranged on the inner wall of the sleeve (7), and a plurality of annularly distributed steel balls (12) are arranged in the groove. The outer edge of the steel ball (12) extends out of the groove, but the steel ball (12) is partially limited in the groove. A first spring (11) is filled between the steel ball (12) and the groove.

2. The copper infiltration assisting device for powder metallurgy according to claim 1, wherein: The guide post (4) vertically penetrates through the central shaft hole of the gear member (5) and the copper ring (10).

3. An auxiliary device for powder metallurgy copper infiltration according to claim 1, characterized in that: The guide post (4) is cylindrical and the outer diameter of the guide post (4) is the same as the inner diameter of the central shaft hole of the gear member (5).

4. The copper infiltration auxiliary device for powder metallurgy according to claim 1, characterized in that: A limiting post is arranged on the top of the second frame body (6), and a second spring is sleeved on the limiting post. The top of the second spring abuts against the top plate (8).

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