A powder metallurgy sintered part surface oxide layer removal device
By designing a powder metallurgy sintered parts surface oxide layer removal device that includes removal and adjustment components, the problem of uneven oxide layer removal caused by accumulation during the cleaning process of powder metallurgy sintered parts was solved, achieving a more efficient and better oxide layer removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU HUIFENG NEW MATERIAL CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-29
AI Technical Summary
In existing equipment, powder metallurgy sintered parts are prone to buildup during the cleaning process, resulting in uneven and incomplete removal of the oxide layer.
A device for removing the oxide layer on the surface of powder metallurgy sintered parts was designed, comprising a removal component and an adjustment component. The sintered parts are dispersed by rotating a placement cylinder in an acid solution, and the height of the placement cylinder can be adjusted to accommodate sintered parts of different sizes and quantities.
It achieves uniform and thorough removal of the oxide layer from powder metallurgy sintered parts, improving removal efficiency and quality, while facilitating the subsequent removal of the processed sintered parts.
Smart Images
Figure CN224299374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder metallurgy sintered parts technology, specifically to a device for removing the oxide layer on the surface of powder metallurgy sintered parts. Background Technology
[0002] Powder metallurgy sintered parts refer to sintered products manufactured using powder metallurgy processes. Specifically, powder metallurgy sintered parts are produced by mixing and pressing metal powders or other material powders into a compact form, followed by high-temperature sintering. After sintering, the powder metallurgy sintered parts are cleaned in an acid solution, where the acid reacts chemically with the oxides on the surface of the parts to remove the oxide layer.
[0003] According to a Chinese patent publication (CN222499385U), a device for removing rust from the oxide layer of metal products includes an acid pickling tank. Two sets of support legs are welded and fixed to both sides of the bottom of the acid pickling tank, and a drain pipe is fixedly installed on the right side wall of the tank. The drain pipe is fixedly connected to a fixed plate via two sets of bolts at its upper part. The top of the fixed plate is welded and fixed to an adjusting seat. A locking plate with a positioning area is fixedly installed above the adjusting seat. A metal product placement frame is set inside the acid pickling tank. In this device, a positioning strip passes through the receiving opening and is inserted into the opening, immersing the metal product placement frame in the acid pickling and rust removal liquid inside the tank, thus completing the rust removal process. During the entire rust removal process, the hands will not come into contact with the acid pickling and rust removal liquid, protecting the hands while simultaneously performing rapid acid pickling and rust removal on the metal parts.
[0004] However, existing devices have the following problems: powder metallurgy sintered parts tend to accumulate inside the placement frame, making it impossible to uniformly and thoroughly remove the oxide layer from the powder metallurgy sintered parts. Therefore, a device for removing the oxide layer from the surface of powder metallurgy sintered parts is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a device for removing the oxide layer on the surface of powder metallurgy sintered parts, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for removing the oxide layer on the surface of powder metallurgy sintered parts, comprising a processing frame;
[0007] Two support bases are fixedly connected to the left and right sides of the processing frame, respectively;
[0008] And a drain pipe that extends from the bottom surface of the processing frame to the bottom of the processing frame, with a valve inside the drain pipe, and a removal component inside the processing frame;
[0009] An adjustment component is provided above the processing frame;
[0010] The removal component is located on the surface of the adjustment component.
[0011] Preferably, the removal component includes two L-shaped plates located inside the processing frame. The two L-shaped plates are symmetrically arranged, and a placement cylinder is disposed between the two L-shaped plates. Rotating rods are fixedly connected to the left and right sides of the placement cylinder. The end faces of the rotating rods are rotatably connected to the sides of the L-shaped plates through bearing seats. A motor is fixedly connected to the right side of the left L-shaped plate. A gear is fixedly sleeved on the surface of the motor output rod. A gear ring is fixedly sleeved on the surface of the placement cylinder. The side of the gear meshes with the side of the gear ring. A through hole is opened through the surface of the placement cylinder.
[0012] Preferably, the adjustment assembly includes two connecting frames fixedly connected to the top surface of the processing frame. A connecting block is provided inside the connecting frame. T-shaped blocks are fixedly connected to the opposing surfaces of the two L-shaped plates. A placement groove is opened through the top surface of the connecting block. The bottom surface of the T-shaped block slides through the top surface of the connecting block and extends into the placement groove. The inner wall of the T-shaped block is threadedly connected to the inner wall of the connecting block by bolts. The T-shaped block is easy to disassemble, thereby removing the placement cylinder.
[0013] Preferably, the top surface of the placement cylinder is provided with a through groove, and a baffle is hinged to the top surface of the placement cylinder. The baffle is located directly above the through groove and prevents the powder metallurgy sintered parts inside the placement cylinder from falling out of the through groove.
[0014] Preferably, the motor surface is covered with a motor cover, and the top surface of the motor cover has through-holes for heat dissipation, and the motor cover protects the motor.
[0015] Preferably, a sliding rod is provided above the connecting block, and the bottom end of the sliding rod slides through the top surface of the connecting block and extends to the bottom of the connecting block. The top and bottom ends of the sliding rod are fixedly connected to the upper and lower surfaces inside the connecting frame, respectively. The sliding rod improves the stability of the connecting block's lifting and lowering.
[0016] Preferably, a plug is provided on the outer side of the connecting block, and a slot is provided through the side of the connecting frame. The end face of the plug slides through the side of the connecting block and the side of the connecting frame and extends into the slot. The plug locks the connecting block, thereby fixing the height of the placement cylinder.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. The powder metallurgy sintered part surface oxide layer removal device uses a removal component to place the powder metallurgy sintered part into a processing frame using a placement cylinder. An acid solution is added to the processing frame to remove the oxide layer of the powder metallurgy sintered part. At the same time, the motor drives the gear to mesh with the gear ring, causing the placement cylinder to rotate, so that the powder metallurgy sintered part is evenly dispersed in the acid solution. This effectively avoids the problem of incomplete oxide layer removal caused by the accumulation of sintered parts, and improves the removal efficiency and quality.
[0019] 2. This powder metallurgy sintered part surface oxide layer removal device allows users to flexibly adjust the height of the placement cylinder according to the size and quantity of the sintered parts by adjusting the component and using the connecting block to slide on the slide rod. This ensures that the acid solution can fully soak the sintered parts and facilitates the subsequent removal of the treated sintered parts. Attached Figure Description
[0020] Figure 1 This is a front sectional perspective view of the present invention;
[0021] Figure 2 This is a perspective view of the overall main view of this utility model;
[0022] Figure 3 This is a front perspective view of the T-shaped block of this utility model;
[0023] Figure 4 This is a top sectional perspective view of the connecting frame of this utility model;
[0024] Figure 5 This is a perspective view of the left side of the T-shaped block of this utility model.
[0025] In the diagram: processing frame 1, support base 2, drain pipe 3, removal component 40, L-shaped plate 401, motor 402, gear 403, placement cylinder 404, rotating rod 405, gear ring 406, baffle 407, motor cover 408, adjusting component 41, connecting frame 411, connecting block 412, slide rod 413, insertion rod 414, T-shaped block 415. Detailed Implementation
[0026] 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.
[0027] Example 1: Please refer to Figure 1 - Figure 3 This utility model provides a technical solution: a device for removing the oxide layer on the surface of powder metallurgy sintered parts, including a processing frame 1;
[0028] Two support bases 2 are fixedly connected to the left and right sides of the processing frame 1, respectively;
[0029] And a drain pipe 3 that extends from the bottom surface of the processing frame 1 to the bottom of the processing frame 1, with a valve inside the drain pipe 3 and a removal component 40 inside the processing frame 1.
[0030] An adjustment component 41 is provided above the processing frame 1;
[0031] Remove component 40 is located on the surface of adjustment component 41.
[0032] The removal component 40 includes two L-shaped plates 401 located inside the processing frame 1. The two L-shaped plates 401 are symmetrically arranged, and a placement cylinder 404 is disposed between the two L-shaped plates 401. Rotating rods 405 are fixedly connected to the left and right sides of the placement cylinder 404. The end faces of the rotating rods 405 are rotatably connected to the sides of the L-shaped plates 401 through bearing seats. A motor 402 is fixedly connected to the right side of the left L-shaped plate 401. A gear 403 is fixedly sleeved on the surface of the output rod of the motor 402. A gear ring 406 is fixedly sleeved on the surface of the placement cylinder 404. The side of the gear 403 is connected to the gear ring 406. The ring 406 engages with the side of the ring, and the surface of the placement cylinder 404 has a through hole. The powder metallurgy sintered part is placed into the processing frame 1 through the removal component 40. The oxide layer of the powder metallurgy sintered part in the processing frame 1 is removed by adding an acid solution to the processing frame 1. At the same time, the motor 402 drives the gear 403 to mesh with the gear ring 406, which drives the placement cylinder 404 to rotate, so that the powder metallurgy sintered part is evenly dispersed in the acid solution. This effectively avoids the problem of incomplete removal of oxide layer caused by the accumulation of sintered parts, and improves the removal efficiency and quality.
[0033] A through groove is provided on the top surface of the placement cylinder 404, and a baffle 407 is hinged to the top surface of the placement cylinder 404, with the baffle 407 located directly above the through groove.
[0034] The surface of the motor 402 is covered with a motor cover 408. The top surface of the motor cover 408 has a through-hole for heat dissipation. The design of the motor cover 408 protects the motor 402 from corrosion and extends the service life of the motor 402.
[0035] Example 2: Based on Example 1, a preferred embodiment of the powder metallurgy sintered part surface oxide layer removal device provided by this utility model is as follows: Figure 1 - Figure 5As shown: The adjustment component 41 includes two connecting frames 411 fixedly connected to the top surface of the processing frame 1. A connecting block 412 is provided inside the connecting frame 411. T-shaped blocks 415 are fixedly connected to the disjoint surfaces of the two L-shaped plates 401. A placement groove is opened through the top surface of the connecting block 412. The bottom surface of the T-shaped block 415 slides through the top surface of the connecting block 412 and extends into the placement groove. The inner wall of the T-shaped block 415 is threadedly connected to the inner wall of the connecting block 412 by bolts. By adjusting the component 41, the connecting block 412 slides on the slide rod 413, thereby allowing the user to flexibly adjust the height of the placement cylinder 404 according to the size and quantity of the sintered parts, ensuring that the acid solution can fully soak the sintered parts, and facilitating the subsequent removal of the processed sintered parts.
[0036] A sliding rod 413 is provided above the connecting block 412. The bottom end of the sliding rod 413 slides through the top surface of the connecting block 412 and extends to the bottom of the connecting block 412. The top and bottom ends of the sliding rod 413 are fixedly connected to the upper and lower surfaces inside the connecting frame 411, respectively. The placement cylinder 404 and the L-shaped plate 401 are connected by a T-shaped block 415 and bolts, which facilitates disassembly and cleaning.
[0037] A plug rod 414 is provided on the outer side of the connecting block 412, and a slot is provided through the side of the connecting frame 411. The end face of the plug rod 414 slides through the side of the connecting block 412 and the side of the connecting frame 411 and extends into the slot. The structural components such as the connecting block 412, the slide rod 413 and the plug rod 414 enhance the stability of the device, ensure that it will not shake during rotation, and guarantee the stability and safety of operation.
[0038] In use, open the baffle 407, place the powder metallurgy sintered part into the placement cylinder 404 through the through slot, and fix the baffle 407 onto the placement cylinder 404. Take out the insert rod 414 and push the connecting block 412 to slide on the slide rod 413 to adjust the height of the placement cylinder 404. Then insert the insert rod 414 into the slot to lock the connecting block 412. Place the placement cylinder 404 into the processing frame 1, add acid solution to the processing frame 1, and submerge the placement cylinder 404 (but not exceeding the motor cover 408). Turn on the motor 402, and the output rod of the motor 402 drives the connected gear 403 to rotate. The gear 403 meshes with the gear ring 406. The combined drive causes the placement cylinder 404 to rotate, dispersing the powder metallurgy sintered parts in the placement cylinder 404, thereby uniformly and thoroughly removing the oxide layer from the powder metallurgy sintered parts in the placement cylinder 404; after the oxide layer is removed, when it is necessary to take out the powder metallurgy sintered parts in the placement cylinder 404, the insert rod 414 is taken out, pushing the connecting block 412 to move upward, the connecting block 412 drives the placement cylinder 404 to move upward, and the bolts are removed, the T-shaped block 415 is removed from the placement groove, and then the placement cylinder 404 is taken out, thereby removing the placement cylinder 404 from the processing frame 1, which facilitates the removal of the powder metallurgy sintered parts with the oxide layer removed from the placement cylinder 404.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for removing oxide layer from the surface of powder metallurgy sintered parts, comprising a processing frame (1); Two support seats (2) are fixedly connected to the left and right sides of the processing frame (1); And a drain pipe (3) extending from the bottom surface of the processing frame (1) to the bottom of the processing frame (1), wherein a valve is provided inside the drain pipe (3), characterized in that: The processing box (1) is equipped with a removal component (40). An adjustment component (41) is provided above the processing frame (1); The removal component (40) is located on the surface of the adjustment component (41).
2. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 1, characterized in that: The removal component (40) includes two L-shaped plates (401) located inside the processing frame (1). The two L-shaped plates (401) are symmetrically arranged, and a placement cylinder (404) is provided between the two L-shaped plates (401). Rotating rods (405) are fixedly connected to the left and right sides of the placement cylinder (404). The end face of the rotating rod (405) is rotatably connected to the side of the L-shaped plate (401) through a bearing seat. A motor (402) is fixedly connected to the right side of the left L-shaped plate (401). A gear (403) is fixedly sleeved on the surface of the output rod of the motor (402). A gear ring (406) is fixedly sleeved on the surface of the placement cylinder (404). The side of the gear (403) meshes with the side of the gear ring (406). A through hole is opened on the surface of the placement cylinder (404).
3. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 1, characterized in that: The adjustment component (41) includes two connecting frames (411) fixedly connected to the top surface of the processing frame (1). A connecting block (412) is provided inside the connecting frame (411), and a T-shaped block (415) is fixedly connected to the opposite surfaces of the L-shaped plate (401). A placement groove is provided through the top surface of the connecting block (412). The bottom surface of the T-shaped block (415) slides through the top surface of the connecting block (412) and extends into the placement groove. The inner wall of the T-shaped block (415) is threadedly connected to the inner wall of the connecting block (412) by bolts.
4. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 2, characterized in that: The top surface of the placement cylinder (404) is provided with a through groove, and a baffle (407) is hinged to the top surface of the placement cylinder (404), with the baffle (407) located directly above the through groove.
5. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 2, characterized in that: The motor (402) is covered with a motor cover (408), and the top surface of the motor cover (408) has a heat dissipation hole.
6. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 3, characterized in that: A sliding rod (413) is provided above the connecting block (412). The bottom end of the sliding rod (413) slides through the top surface of the connecting block (412) and extends to the bottom of the connecting block (412). The top and bottom ends of the sliding rod (413) are fixedly connected to the upper and lower surfaces inside the connecting frame (411), respectively.
7. The device for removing the oxide layer on the surface of powder metallurgy sintered parts according to claim 3, characterized in that: The connecting block (412) is provided with a plug rod (414) on the outside, and the connecting frame (411) has a slot through it on the side. The end face of the plug rod (414) slides through the side of the connecting block (412) and the side of the connecting frame (411) and extends into the slot.