Automobile engine piston subjected to micro-arc oxidation treatment

By designing a micro-arc oxidation-treated automobile engine piston, the combined structure of the snap disc and micro-arc oxidation treatment tank is used to achieve automated micro-arc oxidation treatment and cooling effect, solving the problem of prone to cracking of the piston pin hole of the small displacement and high torque engine, and improving the treatment efficiency and the service life of the piston.

CN222961575UActive Publication Date: 2025-06-10FEI ER DE JING GONG KE JI (NAN TONG) YOU XIAN GONG SI
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421899794.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-06-10
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

Small displacement and high torque engine piston pin holes are prone to cracking. The existing solution is to thicken the wall thickness of the piston pin hole, resulting in increased piston mass, friction work, reciprocating inertia force and NVH, and the surface is prone to corrosion, and microarc oxidation is required to improve service life.

Method used

A micro-arc oxidation treatment automobile engine piston is designed. By setting up a snap disc and a micro-arc oxidation treatment cell in the cooling pool, the snap latch block and the snap limit slot are used to achieve stable installation of the micro-arc oxidation treatment cell, and combined with the power control box and the micro-arc oxidation treatment controller, the automation and cooling effect of the micro-arc oxidation treatment process is achieved.

Benefits of technology

The microarc oxidation treatment of the automobile engine piston is realized, the treatment efficiency and quality are improved, the device instability caused by excessive temperature is avoided, the service life of the piston is extended, and the NVH is reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222961575U_ABST
    Figure CN222961575U_ABST
Patent Text Reader

Abstract

The utility model discloses an automobile engine piston for micro-arc oxidation treatment, and relates to the technical field of micro-arc oxidation treatment, the automobile engine piston comprises a cooling pool, the inner wall of one side of the cooling pool is fixedly provided with a buckle disc, the buckle disc is internally provided with a buckle limiting groove, and one side of the buckle disc is detachably provided with a micro-arc oxidation treatment pool. An engine piston limiting groove is formed to fix an automobile engine piston needing micro-arc oxidation treatment, a buckle bolt block on the micro-arc oxidation treatment pond is directly inserted into the buckle limiting groove, the micro-arc oxidation treatment pond is installed in the cooling pond, an electric power connecting wire extends into the micro-arc oxidation treatment pond, and the micro-arc oxidation treatment pond is installed in the cooling pond. The micro-arc oxidation treatment controller is used for controlling starting of the electric control box, so that micro-arc oxidation treatment of the automobile engine piston is achieved, in the treatment process, water in the cooling pool is used for cooling operation, the situation that the treatment efficiency of the device is affected by too high temperature is avoided, and the treatment quality of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of micro-arc oxidation treatment, in particular to an automobile engine piston subjected to micro-arc oxidation treatment. Background Art

[0002] With the rapid development of the domestic automobile industry and the competition in the industry, national regulations are becoming more and more strict, and engines with small displacement and high power are increasingly favored by major OEMs. In this way, it is inevitable that the in-cylinder explosion pressure will become larger and larger. However, affected by the piston quality, the wall thickness of the piston pin hole is relatively thin, resulting in cracking of the piston pin holes of many such small-displacement and high-torque engines. The solution of many OEMs is to thicken the wall thickness of the piston pin hole, which will lead to an increase in piston quality, piston friction work, piston reciprocating inertia force, and NVH. During the production of automobile engine pistons, in order to increase the service life of the device and avoid surface corrosion problems, we need to perform micro-arc oxidation treatment on the surface of the automobile engine piston. In order to improve the processing efficiency, we design an automobile engine piston subjected to micro-arc oxidation treatment. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an automobile engine piston subjected to micro-arc oxidation treatment.

[0004] To solve the above technical problems, the utility model provides the following technical solution: An automobile engine piston subjected to micro-arc oxidation treatment, including a cooling pool, on one inner wall of the cooling pool, a snap disc is fixedly installed, a snap limit groove is opened inside the snap disc, a micro-arc oxidation treatment pool is detachably installed on one side of the snap disc, an engine piston limit groove is opened at the bottom end inside the micro-arc oxidation treatment pool, a snap pin block is fixedly installed on one outer wall of the micro-arc oxidation treatment pool, a micro-arc oxidation treatment controller is fixedly installed at the top end on one side of the cooling pool, a mounting table is fixedly installed at the top end on one side of the cooling pool, a power control box is fixedly installed at the top end on one side of the mounting table, a control connection line is fixedly connected between the power control box and the micro-arc oxidation treatment controller, a power connection line is fixedly connected to the bottom end on one side of the mounting table, and a power transmission head is fixedly connected to the top end on one side of the power connection line.

[0005] Preferably, the positions of the snap pin block and the snap disc correspond one by one, the connection relationship between the snap pin block and the snap limit groove is a movable snap connection, the number of snap discs is several, and several snap discs are evenly distributed inside the cooling pool.

[0006] Preferably, the positions of the snap pin block and the snap disc correspond one by one, the connection relationship between the snap pin block and the snap limit groove is a movable snap connection, the number of snap discs is several, and several snap discs are evenly distributed inside the cooling pool.

[0007] Preferably, a limit mounting post is fixedly installed at the top edge on one side of the cooling pool. A limit top plate is fixedly installed at the top of one side of the limit mounting post. A socket rotating disc is movably installed on the surface of one side of the limit mounting post. A buckle resisting disc is fixedly connected to the top of one side of the socket rotating disc.

[0008] Preferably, the cross-sectional diameter of the socket rotating disc is larger than the cross-sectional diameter of the limit mounting post. The connection relationship between the socket rotating disc and the limit mounting post is a movable socket connection. The positions of the buckle resisting disc and the buckle pin block correspond one by one. The connection relationship between the buckle resisting disc and the buckle pin block is a movable clamping connection. The cross-sectional diameter of the limit top plate is larger than the cross-sectional diameter of the socket rotating disc.

[0009] Preferably, a control setting disc is fixedly installed at the top of the front surface of the micro-arc oxidation treatment controller. A data display is arranged at the bottom end of the front surface of the micro-arc oxidation treatment controller. The connection relationship between the power control box and the micro-arc oxidation treatment controller is a power control connection.

[0010] Compared with the related art, the micro-arc oxidation-treated automobile engine piston provided by the present utility model has the following beneficial effects:

[0011] 1. The present utility model provides a micro-arc oxidation-treated automobile engine piston. By setting an engine piston limit groove, the automobile engine piston to be micro-arc oxidation-treated is fixed. The buckle pin block on the micro-arc oxidation treatment pool is directly inserted into the inside of the buckle limit groove, so as to install the micro-arc oxidation treatment pool into the inside of the cooling pool. The power connection line extends into the inside of the micro-arc oxidation treatment pool, and the power control box is controlled to start by using the micro-arc oxidation treatment controller, thereby realizing the micro-arc oxidation treatment of the automobile engine piston. During the treatment process, the water body inside the cooling pool is used for cooling operation, avoiding too high temperature from affecting the treatment efficiency of the device and improving the treatment quality of the device.

[0012] 2. The present utility model provides a micro-arc oxidation-treated automobile engine piston. By setting the rotation of the socket rotating disc on the limit mounting post, the position of the buckle resisting disc is adjusted. The buckle resisting disc is used to directly resist the buckle pin block on the side of the micro-arc oxidation treatment pool, avoiding the problem of instability after the micro-arc oxidation treatment pool is installed due to the buoyancy of the water body inside the cooling pool, improving the stability of the device during use, and at the same time facilitating the subsequent overall disassembly of the micro-arc oxidation treatment pool, cleaning the inside of the micro-arc oxidation treatment pool, and at the same time facilitating the removal of the automobile engine piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 Schematic structural diagram of the micro-arc oxidation treatment tank of the present utility model;

[0015] Figure 3 Bottom view structural schematic diagram of the micro-arc oxidation treatment device of the present utility model;

[0016] Figure 4 For the present utility model Figure 1 Enlarged structural schematic diagram at position A.

[0017] Reference numerals in the figure: 1, cooling tank; 2, snap disk; 3, snap limit groove; 4, micro-arc oxidation treatment tank; 5, engine piston limit groove; 6, snap pin block; 7, micro-arc oxidation treatment controller; 8, installation platform; 9, power control box; 10, control connection line; 11, power connection line; 12, power transmission head; 13, limit installation column; 14, limit top disk; 15, socket rotating disk; 16, snap resistance disk; 17, control setting disk; 18, data display. Specific embodiments

[0018] Embodiment 1:

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: an automobile engine piston for micro-arc oxidation treatment, including a cooling tank 1, a snap disk 2 is fixedly installed on one inner wall of the cooling tank 1, a snap limit groove 3 is opened inside the snap disk 2, a micro-arc oxidation treatment tank 4 is detachably installed on one side of the snap disk 2, an engine piston limit groove 5 is opened at the inner bottom end of the micro-arc oxidation treatment tank 4, a snap pin block 6 is fixedly installed on one outer wall of the micro-arc oxidation treatment tank 4, a micro-arc oxidation treatment controller 7 is fixedly installed at the top end of one side of the cooling tank 1, an installation platform 8 is fixedly installed at the top end of one side of the cooling tank 1, a power control box 9 is fixedly installed at the top end of one side of the installation platform 8, a control connection line 10 is fixedly connected between the power control box 9 and the micro-arc oxidation treatment controller 7, a power connection line 11 is fixedly connected to the bottom end of one side of the installation platform 8, a power transmission head 12 is fixedly connected to the top end of one side of the power connection line 11, the positions of the snap pin block 6 and the snap disk 2 correspond to each other, the connection relationship between the snap pin block 6 and the snap limit groove 3 is a movable clamping connection, the number of snap disks 2 is several, and several snap disks 2 are equidistantly distributed inside the cooling tank 1, the positions of the power control box 9 and the micro-arc oxidation treatment tank 4 correspond to each other, the connection relationship between the power control box 9 and the power connection line 11 is a power transmission connection, and the power transmission head 12 extends into the micro-arc oxidation treatment tank 4.

[0020] In an embodiment, the automotive engine piston to be subjected to micro-arc oxidation treatment is fixed by setting the engine piston limit groove 5. The buckle pin block 6 on the micro-arc oxidation treatment tank 4 is directly inserted into the interior of the buckle limit groove 3 to install the micro-arc oxidation treatment tank 4 into the interior of the cooling tank 1. The power connection line 11 extends into the interior of the micro-arc oxidation treatment tank 4, and the start of the power control box 9 is controlled by the micro-arc oxidation treatment controller 7, thereby realizing the micro-arc oxidation treatment of the automotive engine piston. During the treatment process, the water body inside the cooling tank 1 is used for cooling operation to avoid excessive temperature affecting the treatment efficiency of the device and improve the treatment quality of the device.

[0021] Embodiment 2:

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a micro-arc oxidation-treated automotive engine piston, including a limit mounting post 13 fixedly installed at the top edge of one side of the cooling tank 1. A limit top plate 14 is fixedly installed at the top of one side of the limit mounting post 13. A socket rotating disk 15 is movably installed on the surface of one side of the limit mounting post 13. A buckle resisting disk 16 is fixedly connected to the top of one side of the socket rotating disk 15. The cross-sectional diameter of the socket rotating disk 15 is larger than the cross-sectional diameter of the limit mounting post 13. The connection relationship between the socket rotating disk 15 and the limit mounting post 13 is a movable socket connection. The positions of the buckle resisting disk 16 and the buckle pin block 6 correspond one by one. The connection relationship between the buckle resisting disk 16 and the buckle pin block 6 is a movable clamping connection. The cross-sectional diameter of the limit top plate 14 is larger than the cross-sectional diameter of the socket rotating disk 15. A control setting disk 17 is fixedly installed at the top of the front surface of the micro-arc oxidation treatment controller 7. A data display 18 is arranged at the bottom of the front surface of the micro-arc oxidation treatment controller 7. The connection relationship between the power control box 9 and the micro-arc oxidation treatment controller 7 is a power control connection.

[0023] In an embodiment, by setting the rotation of the socket rotating disk 15 on the limit mounting post 13, the position of the buckle resisting disk 16 is adjusted. The buckle resisting disk 16 is used to directly resist the buckle pin block 6 on the side of the micro-arc oxidation treatment tank 4, avoiding the problem of instability of the micro-arc oxidation treatment tank 4 after installation caused by the buoyancy of the water body inside the cooling tank 1, improving the stability of the device during use, and at the same time facilitating the subsequent overall disassembly of the micro-arc oxidation treatment tank 4 for cleaning the interior of the micro-arc oxidation treatment tank 4 and facilitating the removal of the automotive engine piston.

[0024] Working principle:

[0025] The automotive engine piston to be subjected to micro-arc oxidation treatment is fixed by setting the engine piston limit groove 5. The buckle pin block 6 on the micro-arc oxidation treatment tank 4 is directly inserted into the inside of the buckle limit groove 3 to install the micro-arc oxidation treatment tank 4 into the inside of the cooling tank 1. The power connection line 11 extends into the inside of the micro-arc oxidation treatment tank 4, and the start of the power control box 9 is controlled by the micro-arc oxidation treatment controller 7, thereby realizing the micro-arc oxidation treatment of the automotive engine piston. During the treatment process, the water body inside the cooling tank 1 is used for cooling operation to avoid excessive temperature from affecting the treatment efficiency of the device and improve the treatment quality of the device;

[0026] By setting the rotation of the socket rotating disk 15 on the limit mounting post 13, the position of the buckle resisting disk 16 is adjusted. The buckle resisting disk 16 directly resists the buckle pin block 6 on the side of the micro-arc oxidation treatment tank 4 to avoid the problem of instability of the micro-arc oxidation treatment tank 4 after installation caused by the buoyancy of the water body inside the cooling tank 1, improve the stability of the device during use, and at the same time facilitate the subsequent overall disassembly of the micro-arc oxidation treatment tank 4 for internal cleaning and the removal of the automotive engine piston.

Claims

1. A micro-arc oxidation treated automobile engine piston, comprising a cooling pool (1), a snap plate (2) being fixedly mounted on one inner wall of the cooling pool (1), characterized in that: A buckle limiting groove (3) is provided inside the buckle disk (2); a micro-arc oxidation treatment pool (4) is detachably mounted on one side of the buckle disk (2); an engine piston limiting groove (5) is provided at the inner bottom end of the micro-arc oxidation treatment pool (4); a buckle latch block (6) is fixedly mounted on one side outer wall of the micro-arc oxidation treatment pool (4); a micro-arc oxidation treatment controller (7) is fixedly mounted on the top end of one side of the cooling pool (1); a mounting platform (8) is fixedly mounted on the top end of one side of the cooling pool (1); a power control box (9) is fixedly mounted on the top end of one side of the mounting platform (8); a control connection line (10) is fixedly connected between the power control box (9) and the micro-arc oxidation treatment controller (7); a power connection line (11) is fixedly connected to the bottom end of one side of the mounting platform (8); and a power transmission head (12) is fixedly connected to the top end of one side of the power connection line (11).

2. The automobile engine piston treated by micro-arc oxidation according to claim 1, characterized in that: The positions of the buckle latch block (6) and the buckle disk (2) correspond one to one, the connection relationship between the buckle latch block (6) and the buckle limit groove (3) is a movable buckle connection, the number of the buckle disks (2) is several, and the several buckle disks (2) are evenly spaced and distributed inside the cooling pool (1).

3. The automobile engine piston treated by micro-arc oxidation according to claim 1, characterized in that: The positions of the power control box (9) and the micro-arc oxidation treatment pool (4) correspond one to one, the connection relationship between the power control box (9) and the power connection line (11) is a power transmission connection, and the power transmission head (12) extends into the interior of the micro-arc oxidation treatment pool (4).

4. The automobile engine piston treated by micro-arc oxidation according to claim 1, characterized in that: A limit mounting column (13) is fixedly mounted on the top edge of one side of the cooling pool (1), a limit top plate (14) is fixedly mounted on the top of one side of the limit mounting column (13), a sleeve rotating plate (15) is movably mounted on the surface of one side of the limit mounting column (13), and a buckle resistance plate (16) is fixedly connected to the top of one side of the sleeve rotating plate (15).

5. The automobile engine piston treated by micro-arc oxidation according to claim 4, characterized in that: The cross-sectional diameter of the sleeve rotating disk (15) is larger than the cross-sectional diameter of the position limiting mounting column (13); the connection relationship between the sleeve rotating disk (15) and the position limiting mounting column (13) is a movable sleeve connection; the positions of the buckle resistance disk (16) and the buckle latch block (6) correspond one to one; the connection relationship between the buckle resistance disk (16) and the buckle latch block (6) is a movable snap connection; the cross-sectional diameter of the position limiting top disk (14) is larger than the cross-sectional diameter of the sleeve rotating disk (15).

6. The automobile engine piston treated by micro-arc oxidation according to claim 1, characterized in that: A control setting disk (17) is fixedly mounted on the front top of the micro-arc oxidation treatment controller (7), a data display (18) is arranged on the front bottom of the micro-arc oxidation treatment controller (7), and the connection relationship between the power control box (9) and the micro-arc oxidation treatment controller (7) is a power control connection.