Special clamp for micro-arc oxidation of aluminum piston

Abstract

The utility model discloses a special fixture for micro-arc oxidation of an aluminum piston, which relates to the technical field of micro-arc oxidation of pistons and comprises an aluminum piston fixing table, and a special fixture for the aluminum piston is fixedly mounted on the surface of the top end of one side of the aluminum piston fixing table. A piston inner hole limiting stopper is fixedly mounted in the middle of the top end of one side of the aluminum piston fixing table, the aluminum piston special fixator comprises a sliding chassis, an adjusting disc is fixedly mounted at the top end of one side of the sliding chassis, and an adjusting screw rod is movably mounted in the top end of one side of the adjusting disc. The position of the adjusting screw rod is adjusted through the adjusting rotary disc arranged on the fixing device special for the aluminum piston, so that the position of the auxiliary connecting block is directly adjusted, and the auxiliary connecting block is assisted to adjust the position through sliding of the sliding supporting block in the sliding cabin; the outer wall of the aluminum piston is extruded and fixed through the clamp limiting grooves in the fixed clamp disc and the clamp limiting grooves in the auxiliary clamp disc.

Description

Technical Field

[0001] The utility model relates to the technical field of piston micro-arc oxidation, in particular to a special fixture for micro-arc oxidation of aluminum pistons. Background Art

[0002] Aluminum pistons, the "heart" of new natural gas engines, are exposed to harsh working conditions such as high temperature, high pressure, and susceptibility to friction for a long time. In particular, due to the characteristics of natural gas, the corrosive gases generated during the combustion process accelerate the corrosion failure of the piston; at the same time, due to the effect of thermal fatigue, the mechanical failure of the piston is further accelerated. Therefore, by micro-arc oxidation treatment on the surface of the aluminum piston, a ceramic layer with high hardness, high wear resistance, high corrosion resistance and high temperature thermal shock resistance is obtained, thereby improving the performance of the piston and extending its service life. At the same time, micro-arc oxidation treatment is performed on the piston head and top to avoid over-oxidation at the edges. During the micro-arc oxidation process, a certain fixing device is required to increase the stability of the device treatment. Therefore, a special fixture for micro-arc oxidation of aluminum pistons is designed. Utility Model Content

[0003] The utility model aims to provide a special fixture for micro-arc oxidation of aluminum pistons.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a special fixture for micro-arc oxidation of aluminum pistons, comprising an aluminum piston fixing platform, a special aluminum piston fixture is fixedly installed on the top surface of one side of the aluminum piston fixing platform, a piston inner hole limiter is fixedly installed in the middle of the top of one side of the aluminum piston fixing platform, the special aluminum piston fixture comprises a sliding chassis, an adjusting disk is fixedly installed on the top of one side of the sliding chassis, an adjusting screw is movably installed inside the top of one side of the adjusting disk, an adjusting turntable is fixedly installed on the top of one side of the adjusting screw, and an auxiliary connecting block is fixedly installed on the top of the side of the adjusting screw away from the adjusting turntable.

[0005] Preferably, a sliding cabin is provided inside the sliding chassis, and sliding rails are fixedly installed on the inner walls on both sides of the sliding cabin. A sliding support block is slidably connected to one side of the sliding rail, and a movable extrusion arm is fixedly connected to the top of one side of the auxiliary connecting block.

[0006] Preferably, the adjusting screw passes through the interior of the adjusting disk, the adjusting screw and the adjusting disk are threadedly connected, the auxiliary connecting block is located at the top of the sliding support block, the sliding support block is located inside the sliding cabin, and the connection relationship between the sliding support block and the sliding chassis is a sliding connection.

[0007] Preferably, a fixed clamp plate is fixedly installed on the top of one side of the movable extrusion arm, a vertical adjustment screw is threadedly connected to the top of one side of the fixed clamp plate, a vertical adjustment plate is fixedly installed on the top of one side of the vertical adjustment screw, an auxiliary clamp plate is fixedly connected to the bottom end of one side of the vertical adjustment screw, a clamp limiting groove is provided on one side surface of the auxiliary clamp plate, and a clamp limiting groove is provided on one side surface of the fixed clamp plate.

[0008] Preferably, the piston inner hole limiter includes a fixed tooling chassis, a fixed connection groove is opened inside the top of one side of the fixed tooling chassis, a connecting tooling column is detachably installed on the top of one side of the fixed tooling chassis, an inner wall fitting disk is fixedly connected to the surface of one side of the connecting tooling column, and a fixed connection screw is fixedly connected to the bottom end of one side of the connecting tooling column.

[0009] Preferably, there are a plurality of inner wall fitting discs, which are circumferentially distributed on the surface of the connecting fixture column, and the connection relationship between the fixed connection screw and the fixed connection groove is a threaded connection.

[0010] Compared with the related art, the special clamp for micro-arc oxidation of aluminum piston provided by the utility model has the following beneficial effects:

[0011] 1. The utility model provides a special fixture for micro-arc oxidation of aluminum pistons. By adjusting the position of the adjusting screw by setting an adjusting dial on the special fixture of the aluminum piston, the position of the auxiliary connecting block can be directly adjusted. The sliding support block slides inside the sliding cabin to assist in adjusting the position of the auxiliary connecting block. The clamp limiting grooves on the fixed clamp disk and the clamp limiting grooves on the auxiliary clamp disk are used to squeeze and fix the outer wall of the aluminum piston. The position of the vertical adjusting screw is then adjusted by the vertical adjusting disk. The distance between the fixed clamp disk and the auxiliary clamp disk is directly adjusted, and the distance between the upper and lower clamp limiting grooves is adjusted to improve the effect of the fixing position and further increase the fixing operation.

[0012] 2. The utility model provides a special fixture for micro-arc oxidation of aluminum pistons. The inner diameter of the aluminum piston is limited by setting a piston inner hole limiter. The connecting tool column is connected to the fixed tool chassis through the connection between the fixed connecting screw and the fixed connecting groove. The inner wall of the aluminum piston is pressed against by the inner wall fitting disk. The inner wall fitting disks of different sizes are replaced according to the actual size of the aluminum piston, thereby further increasing the fixing operation of the aluminum piston. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2This is a schematic diagram of the back side view of the aluminum piston special retainer of the present invention;

[0015] Figure 3 This is a side view structural diagram of a special retainer for an aluminum piston of the present invention;

[0016] Figure 4 This is a schematic structural diagram of the piston inner hole limiter of the present utility model.

[0017] Numbers in the figure: 1. Aluminum piston fixing platform; 2. Special aluminum piston holder; 21. Sliding chassis; 22. Adjusting disk; 23. Adjusting screw; 24. Adjusting dial; 25. Auxiliary connecting block; 26. Sliding cabin; 27. Slide rail; 28. Sliding support block; 29. ​​Movable extrusion arm; 210. Fixed fixture disk; 211. Vertical adjusting screw; 212. Vertical adjusting disk; 213. Auxiliary fixture disk; 214. Fixture limit groove; 3. Piston inner hole limiter; 31. Fixed tooling chassis; 32. Fixed connecting groove; 33. Connecting tooling column; 34. Inner wall fitting disk; 35. Fixed connecting screw. DETAILED DESCRIPTION

[0018] Example 1:

[0019] See also Figure 1-4The utility model provides a technical solution: a special fixture for micro-arc oxidation of aluminum pistons, comprising an aluminum piston fixing platform 1, a special aluminum piston holder 2 is fixedly installed on the top surface of one side of the aluminum piston fixing platform 1, a piston inner hole limiter 3 is fixedly installed in the middle of the top of one side of the aluminum piston fixing platform 1, the special aluminum piston holder 2 comprises a sliding chassis 21, an adjusting disk 22 is fixedly installed on the top of one side of the sliding chassis 21, an adjusting screw 23 is movably installed inside the top of one side of the adjusting disk 22, an adjusting turntable 24 is fixedly installed on the top of one side of the adjusting screw 23, an auxiliary connecting block 25 is fixedly installed on the top of the side of the adjusting screw 23 away from the adjusting turntable 24, a sliding cabin 26 is provided inside the sliding chassis 21, and slide rails 27 are fixedly installed on the inner walls of both sides of the sliding cabin 26, and a sliding support block 28 is slidably connected to one side of the slide rail 27. The top end of one side of the auxiliary connecting block 25 is fixedly connected to a movable extrusion arm 29, and the adjusting screw 23 passes through the interior of the adjusting disk 22. The adjusting screw 23 and the adjusting disk 22 are threadedly connected. The auxiliary connecting block 25 is located at the top end of the sliding support block 28, and the sliding support block 28 is located inside the sliding cabin 26. The connection relationship between the sliding support block 28 and the sliding chassis 21 is a sliding connection. The top end of one side of the movable extrusion arm 29 is fixedly installed with a fixed clamp disk 210, and the top end of one side of the fixed clamp disk 210 is threadedly connected with a vertical adjusting screw 211, and the top end of one side of the vertical adjusting screw 211 is fixedly installed with a vertical adjusting disk 212, and the bottom end of one side of the vertical adjusting screw 211 is fixedly connected to an auxiliary clamp disk 213, and a clamp limiting groove 214 is provided on one side surface of the auxiliary clamp disk 213, and a clamp limiting groove 214 is provided on one side surface of the fixed clamp disk 210.

[0020] In the implementation scheme, the position of the adjusting screw 23 is adjusted by setting an adjusting dial 24 on the aluminum piston special fixture 2, thereby directly adjusting the position of the auxiliary connecting block 25, and the sliding support block 28 slides inside the sliding cabin 26 to assist in adjusting the position of the auxiliary connecting block 25, and the clamp limiting groove 214 on the fixed clamp plate 210 and the clamp limiting groove 214 on the auxiliary clamp plate 213 are used to squeeze and fix the outer wall of the aluminum piston, and then the position of the vertical adjusting screw 211 is adjusted by the vertical adjusting disk 212, and the distance between the fixed clamp plate 210 and the auxiliary clamp plate 213 is directly adjusted, and the distance between the upper and lower clamp limiting grooves 214 is adjusted to improve the effect of the fixing position and further increase the fixing operation.

[0021] Example 2:

[0022] See also Figure 1-4The utility model provides a technical solution: a special fixture for micro-arc oxidation of an aluminum piston, including a piston inner hole limiter 3 including a fixed tooling chassis 31, a fixed connecting groove 32 is opened inside the top of one side of the fixed tooling chassis 31, and a connecting tooling column 33 is detachably installed on the top of one side of the fixed tooling chassis 31, and an inner wall bonding disk 34 is fixedly connected to the surface of one side of the connecting tooling column 33, and a fixed connecting screw 35 is fixedly connected to the bottom end of one side of the connecting tooling column 33. There are several inner wall bonding disks 34, and the several inner wall bonding disks 34 are circumferentially distributed on the surface of the connecting tooling column 33. The connection relationship between the fixed connecting screw 35 and the fixed connecting groove 32 is a threaded connection.

[0023] In the implementation scheme, the inner diameter of the aluminum piston is limited by setting a piston inner hole limiter 3, and the connection between the connecting tooling column 33 and the fixed tooling chassis 31 is completed by the connection between the fixed connecting screw 35 and the fixed connecting groove 32. The inner wall fitting disk 34 is pressed against the inner wall of the aluminum piston, and the inner wall fitting disks 34 of different sizes are replaced according to the actual size of the aluminum piston, thereby further increasing the fixing operation of the aluminum piston.

[0024] Working principle:

[0025] By setting an adjustment dial 24 on the aluminum piston dedicated fixer 2 to adjust the position of the adjusting screw 23, the position of the auxiliary connecting block 25 can be directly adjusted, and the sliding support block 28 can slide inside the sliding cabin 26 to assist the auxiliary connecting block 25 in adjusting its position. The clamp limiting groove 214 on the fixed clamp plate 210 and the clamp limiting groove 214 on the auxiliary clamp plate 213 are used to squeeze and fix the outer wall of the aluminum piston. Then, the position of the vertical adjusting screw 211 is adjusted by the vertical adjustment disk 212, and the distance between the fixed clamp plate 210 and the auxiliary clamp plate 213 is directly adjusted. The distance between the upper and lower clamp limiting grooves 214 is adjusted to improve the effect of the fixed position and further increase the fixing operation.

[0026] By setting the piston inner hole limiter 3 to limit the inner diameter of the aluminum piston, the connection between the connecting tool column 33 and the fixed tool chassis 31 is completed by connecting the fixed connection screw 35 and the fixed connection groove 32. The inner wall fitting plate 34 is pressed against the inner wall of the aluminum piston. The inner wall fitting plates 34 of different sizes are replaced according to the actual size of the aluminum piston, further improving the fixing operation of the aluminum piston.

[0027] Special aluminum piston fixers 2 are provided on all four sides of the top of the aluminum piston fixing platform 1 to fix the aluminum piston in multiple directions and ensure the fixing stability of the device.

Claims

1. A special fixture for micro-arc oxidation of aluminum pistons, comprising an aluminum piston fixing platform (1), a top surface of one side of the aluminum piston fixing platform (1) being fixedly mounted with a special aluminum piston holder (2), characterized in that: A piston inner hole limiter (3) is fixedly installed in the middle of the top of one side of the aluminum piston fixing platform (1); the aluminum piston dedicated fixer (2) comprises a sliding chassis (21); an adjusting disk (22) is fixedly installed on the top of one side of the sliding chassis (21); an adjusting screw (23) is movably installed inside the top of one side of the adjusting disk (22); an adjusting turntable (24) is fixedly installed on the top of one side of the adjusting screw (23); and an auxiliary connecting block (25) is fixedly installed on the top of one side of the adjusting screw (23) away from the adjusting turntable (24).

2. The special fixture for micro-arc oxidation of aluminum piston according to claim 1, characterized in that: A sliding cabin (26) is provided inside the sliding chassis (21), and sliding rails (27) are fixedly installed on the inner walls of both sides of the sliding cabin (26). A sliding support block (28) is slidably connected to one side of the sliding rail (27), and a movable extrusion arm (29) is fixedly connected to the top end of one side of the auxiliary connecting block (25).

3. The special fixture for micro-arc oxidation of aluminum piston according to claim 2, characterized in that: The adjusting screw (23) passes through the interior of the adjusting disk (22), the adjusting screw (23) and the adjusting disk (22) are threadedly connected, the auxiliary connecting block (25) is located at the top end of the sliding support block (28), the sliding support block (28) is located inside the sliding cabin (26), and the connection relationship between the sliding support block (28) and the sliding chassis (21) is a sliding connection.

4. The special fixture for micro-arc oxidation of aluminum piston according to claim 2, characterized in that: A fixed clamp plate (210) is fixedly installed on the top end of one side of the movable squeezing arm (29), a vertical adjustment screw (211) is threadedly connected to the top end of one side of the fixed clamp plate (210), a vertical adjustment plate (212) is fixedly installed on the top end of one side of the vertical adjustment screw (211), an auxiliary clamp plate (213) is fixedly connected to the bottom end of one side of the vertical adjustment screw (211), a clamp limiting groove (214) is provided on one side surface of the auxiliary clamp plate (213), and a clamp limiting groove (214) is provided on one side surface of the fixed clamp plate (210).

5. The special fixture for micro-arc oxidation of aluminum piston according to claim 1, characterized in that: The piston inner hole limiter (3) comprises a fixed tool chassis (31), a fixed connection groove (32) is provided inside the top end of one side of the fixed tool chassis (31), a connecting tool column (33) is detachably mounted on the top end of one side of the fixed tool chassis (31), an inner wall fitting disk (34) is fixedly connected to the surface of one side of the connecting tool column (33), and a fixed connection screw (35) is fixedly connected to the bottom end of one side of the connecting tool column (33).

6. The special fixture for micro-arc oxidation of aluminum pistons according to claim 5, characterized in that: The number of the inner wall fitting discs (34) is several, and the several inner wall fitting discs (34) are circumferentially distributed on the surface of the connecting fixture column (33). The connection relationship between the fixed connection screw (35) and the fixed connection groove (32) is a threaded connection.

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