Machining device for improving piston yield

Abstract

The utility model discloses a processing device for improving piston yield, which comprises a piston, a base, a clamp device and a sealing ring, and is characterized in that a first bearing part is arranged at the bottom of the sealing ring, the sealing ring is sleeved on the outer wall of the piston, the first bearing part is abutted against the end face of the piston, and the clamp device is arranged on the base. The clamp device is arranged on the outer wall of the sealing ring in a sleeving mode, after the clamp device is locked, the sealing ring is tightly attached to the outer wall of the piston, and a second bearing part used for bearing the clamp device is arranged on the inner wall of the base. The sealing ring is tightly attached to the outer wall of the piston through the clamp device, leaked liquid is prevented from entering the outer wall of the piston through a valve pit, the leaked liquid is further prevented from leaking to the outer wall of the piston through the first bearing part, the leaked liquid is prevented from corroding the outer wall of the piston, the piston oxidation yield is greatly increased, the reject ratio is reduced, and the manufacturing cost is reduced. The product has the advantage of preventing the piston from being corroded and damaged by leaked liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of piston processing equipment, in particular to a processing device for improving the yield rate of pistons. Background Art

[0002] At present, piston surface treatment has been basically popularized in the field of piston production. Among them, piston top oxidation has obvious advantages in the use of internal combustion engine pistons. The main function of piston top oxidation is to improve the thermal fatigue strength, heat resistance, insulation and corrosion resistance of the piston. The application of piston top oxidation treatment is not limited to improving the performance of the piston, but also includes improving its stress state and reducing the possibility of cracks.

[0003] The specific steps of piston anodizing are divided into five steps: surface treatment, insulation protection, oxidation treatment, temperature control, and subsequent treatment. The surface treatment requires the piston to be pickled, and phosphoric acid or nitric acid is used to remove oil and impurities on the surface, and then the surface is polished to ensure the quality of the oxide film.

[0004] During the oxidation process, the top of the piston leaks due to the gap in the valve pit, which corrodes the outer wall of the piston, causing damage to the outer wall of the piston, resulting in reduced sealing performance of the sealing ring sleeved on the outer wall of the piston. In addition, the damaged piston will increase the defective rate and increase the manufacturing cost. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below is produced under this background. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings of the design proposed in the above background technology and to provide a product that prevents the piston from being corroded and damaged by liquid leakage.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A processing device for improving the yield rate of a piston comprises a piston, a base, a clamp device and a sealing ring, wherein a first supporting portion is provided at the bottom of the sealing ring, the sealing ring is sleeved on the outer wall of the piston, the first supporting portion abuts against the end face of the piston, the clamp device is sleeved on the outer wall of the sealing ring, and after the lock of the clamp device is locked, the sealing ring is tightly attached to the outer wall of the piston, and the inner wall of the base is provided with a second supporting portion for supporting the clamp device.

[0008] Preferably, the end surface of the piston is evenly distributed with a plurality of valve pits with notches around the dot as the axis, and borders the outer wall of the piston, and the end surface of the piston valve pit abuts the first supporting portion.

[0009] Preferably, a third supporting portion is provided on the inner wall of the clamp device and abuts against the bottom of the first supporting portion.

[0010] Preferably, the first supporting portion is arranged in a ring shape, and the first supporting portion and the sealing ring are arranged in a vertical relationship.

[0011] Preferably, the base is provided with a through hole for the liquid medium to flow, the second supporting portion is arranged in the through hole, and the outer wall of the base is provided with a connecting ring.

[0012] Preferably, the clamp device is configured as a clamp or a clamp.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model uses a clamp device to hold the sealing ring tightly against the outer wall of the piston to prevent leakage from entering the outer wall of the piston through the valve pit, and further prevents leakage from seeping into the outer wall of the piston through the first supporting part, thereby preventing leakage from corroding the outer wall of the piston, greatly improving the yield rate of piston oxidation, reducing the defective rate, and reducing manufacturing costs, so that the product has the advantage of preventing leakage from corroding and damaging the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a processing device for improving the piston yield rate according to the utility model;

[0017] Figure 2 It is a schematic diagram of the side cross-sectional structure of a processing device for improving the piston yield rate according to the utility model;

[0018] Figure 3 This is an exploded view of a processing device for improving the piston yield rate according to the utility model;

[0019] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0020] Figure numerals: 1. piston; 2. base; 3. clamping device; 4. sealing ring; 11. valve pit; 21. second supporting part; 22. through hole; 23. connecting ring; 31. third supporting part; 41. first supporting part. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0024] Reference example Figures 1 to 3 A processing device for improving the yield rate of a piston comprises a piston 1, a base 2, a clamp device 3, and a sealing ring 4. A first supporting portion 41 is provided at the bottom of the sealing ring 4. The sealing ring 4 is sleeved on the outer wall of the piston 1. The first supporting portion 41 abuts against the end face of the piston 1. The clamp device 3 is sleeved on the outer wall of the sealing ring 4. After the lock of the clamp device 3 is locked, the sealing ring 4 is tightly attached to the outer wall of the piston 1. A second supporting portion 21 for carrying the clamp device 3 is provided on the inner wall of the base 2. The sealing ring 4 is tightly attached to the outer wall of the piston 1 through the clamp device 3 to prevent leakage from entering the outer wall of the piston 1 through the valve pit 11. The first supporting portion 41 further prevents leakage from seeping into the outer wall of the piston 1, thereby preventing leakage from corroding the outer wall of the piston 1, greatly improving the yield rate of oxidation of the piston 1, reducing the defective rate, and reducing the manufacturing cost.

[0025] It is worth mentioning that the end surface of the piston 1 is evenly distributed with a plurality of valve pits 11 with notches, with the dot as the axis, and bordering the outer wall of the piston 1. The end surface of the valve pit 11 of the piston 1 abuts against the first supporting portion 41. The valve pit 11 mainly plays the role of reducing and increasing the compression ratio, preventing valve interference, changing the direction of the gas, and promoting fuel mixing and combustion.

[0026] It is worth mentioning that the inner wall of the clamp device 3 is provided with a third supporting portion 31, which abuts against the bottom of the first supporting portion 41, and the third supporting portion 31 provides supporting force for the sealing ring 4 and the piston 1;

[0027] It is worth mentioning that the first supporting portion 41 is set in an annular shape, and the first supporting portion 41 and the sealing ring 4 are set in a vertical relationship. The annular first supporting portion 41 increases the contact area with the end surface of the piston 1, improves the sealing performance, and prevents leakage from leaking between the sealing ring 4 and the piston 1;

[0028] It is worth mentioning that the base 2 is provided with a through hole 22 for the liquid medium to flow, the second supporting portion 21 is arranged in the through hole 22, and the outer wall of the base 2 is provided with a connecting ring 23, which facilitates the operating equipment to lift the base 2 so that the piston 1 enters the pickling tank;

[0029] It is worth mentioning that the clamp device 3 is configured as a clamp or a clamp.

[0030] The above design scheme can enable the product to achieve the advantage of avoiding corrosion and damage to the piston due to leakage.

[0031] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A processing device for improving the yield rate of a piston, comprising a piston (1), a base (2), a clamping device (3), and a sealing ring (4), characterized in that: A first supporting portion (41) is provided at the bottom of the sealing ring (4); the sealing ring (4) is sleeved on the outer wall of the piston (1); the first supporting portion (41) abuts against the end face of the piston (1); the clamp device (3) is sleeved on the outer wall of the sealing ring (4); after the lock of the clamp device (3) is tightened, the sealing ring (4) is tightly attached to the outer wall of the piston (1); and a second supporting portion (21) for supporting the clamp device (3) is provided on the inner wall of the base (2).

2. The processing device for improving piston yield according to claim 1, characterized in that: The end surface of the piston (1) is evenly distributed with a plurality of valve pits (11) with notches, with the dot as the axis, and is adjacent to the outer wall of the piston (1). The end surface of the valve pit (11) of the piston (1) abuts against the first supporting portion (41).

3. The processing device for improving piston yield according to claim 2 is characterized in that: The inner wall of the clamp device (3) is provided with a third supporting portion (31) which abuts against the bottom of the first supporting portion (41).

4. The processing device for improving piston yield according to claim 3 is characterized in that: The first supporting portion (41) is arranged in a ring shape, and the first supporting portion (41) and the sealing ring (4) are arranged in a vertical relationship.

5. The processing device for improving piston yield according to claim 3 or 4, characterized in that: The base (2) is provided with a through hole (22) for the circulation of a liquid medium, the second supporting portion (21) is arranged in the through hole (22), and the outer wall of the base (2) is provided with a connecting ring (23).

6. The processing device for improving piston yield according to claim 5, characterized in that: The clamp device (3) is configured as a clamp or a clamp.

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