Piston ring fastening and oiling tool

Abstract

The utility model discloses a kind of piston ring fast installation oiling tool, belong to piston processing process equipment field.The tool includes positioning disc, positioning seat, positioning chuck, heat insulation rubber ring, mounting hole and installation groove.Positioning disc is installed on the rotating equipment's carousel by screw, its inner cavity is equipped with installation groove, and heat insulation rubber ring is installed in bottom.Positioning chuck is detachably assembled in positioning disc, its outer diameter is cooperated with positioning disc, and mounting hole is equipped in inner diameter to position different model pistons.Tool rotates with equipment and drives piston rotation, to complete rust-proof oil uniform oiling treatment.The tool structure is simple, and strong in adaptability, with the advantages of quick change, heat isolation protection, assembly convenient, suitable for the quick oiling treatment of multiple specifications of piston.

Description

Technical Field

[0001] This utility model relates to the field of piston technology, and in particular to a quick-install oiling fixture for piston ring inserts. Background Technology

[0002] Pistons are common critical moving parts in internal combustion engines or pneumatic equipment. Before use, they typically require graphite coating and high-temperature curing to improve wear resistance and service life. After curing, to prevent the cast iron rings from rusting, rust-preventive oil needs to be applied to the outer ring of the piston, a process commonly known as "oiling." Current oiling processes mostly employ semi-automated rotary equipment, requiring the piston to remain stable and centered during rotation to ensure even oiling.

[0003] In existing technologies, oiling fixtures require the manufacture of custom positioning plates, positioning seats, and bottom heat insulation rings based on the piston diameter. This approach not only results in a wide variety of fixtures and difficult management, but also leads to frequent fixture changes, complex assembly and disassembly, and low operational efficiency, failing to meet the demands of modern production for flexibility and versatility. Furthermore, the direct contact between the high-temperature cured piston and the metal fixture easily causes wear and reduces its service life.

[0004] Therefore, there is an urgent need for a quick-installation oiling fixture structure that is more versatile, easy to assemble and disassemble, and has good thermal insulation to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-installation oiling fixture for pistons with insert rings. Through a unified positioning plate and replaceable positioning chuck structure, it can be adapted to different models of pistons, simplifying the assembly process. Combined with a heat-insulating rubber ring structure, it extends the service life of the fixture, thereby solving the problems of frequent fixture replacement, complex structure, low efficiency and severe wear in the prior art.

[0006] This utility model is achieved using the following technical solution: a quick-installation oiling fixture for piston ring inserts, characterized in that it includes a positioning plate, a positioning seat, a positioning chuck, a heat-insulating rubber ring, mounting holes, and mounting grooves; the positioning plate is disposed on the positioning seat and fixedly mounted on the turntable of a rotating device by screws; the inner cavity of the positioning plate has a mounting groove, and a heat-insulating rubber ring is installed at the bottom of the mounting groove; the outer diameter of the positioning chuck mates with the inner cavity of the positioning plate, and the inner diameter of the positioning chuck has mounting holes for installing pistons of different diameters; the positioning chuck is detachably installed inside the positioning plate, enabling quick replacement and positioning of pistons of different models; the entire fixture is driven by a rotating device to achieve uniform application of anti-rust oil to the piston cast iron rings. The positioning chuck 3 is detachably installed inside the positioning plate 1, adopting a plug-in or snap-fit ​​structure design. In actual operation, it is not necessary to remove the entire fixture; only the positioning chuck needs to be replaced to complete the model change, effectively improving production efficiency and reducing the burden of manual operation. This structure is particularly suitable for scenarios involving frequent changes in product models and has broad industrial application value.

[0007] Furthermore, an anti-rotation pin is provided between the positioning disk and the positioning seat. The anti-rotation pin cooperates with the limiting hole on the positioning disk to prevent the tooling from shifting during rotation. This structure prevents the positioning disk from shifting during rotation, which helps to improve the stability and reliability of the entire tooling under high-speed rotation conditions and ensures uniform oiling.

[0008] Furthermore, the heat insulation ring has a multi-diameter structure and is fitted into the groove of the mounting slot to prevent wear caused by contact between the high-temperature piston and the tooling. The multi-diameter design can adapt to different sizes of heat load distribution areas, improve the fit between the heat insulation ring and the groove, effectively avoid localized slippage or dislocation, thereby enhancing structural stability and heat resistance.

[0009] Furthermore, the mounting holes are customized according to the different diameters of the piston, so that the piston can be installed concentrically and stably in the positioning chuck.

[0010] Furthermore, the positioning chuck adopts a quick-release or plug-in structure, which can be quickly replaced without the need for tools.

[0011] Furthermore, the heat-insulating rubber ring is made of high-temperature resistant elastic material, which has the functions of heat insulation and cushioning and shock absorption.

[0012] Furthermore, the tooling is used in conjunction with a semi-automatic rotary oiling device. The tooling rotates synchronously with the device's turntable, achieving 360-degree oiling of the piston cast iron rings. This structure not only improves the uniformity of oiling but also reduces human error, ensuring the stability and consistency of product quality.

[0013] The piston ring quick-release oiling fixture described in this utility model has the following advantages: By designing a unified positioning plate and using a replaceable positioning chuck, the tooling achieves quick replacement and universal positioning of different piston models, significantly reducing the variety of tooling types. The positioning plate features mounting grooves and embedded heat-insulating rings to prevent direct heat contact and wear between the high-temperature piston and the tooling, extending its service life. A limit pin structure between the positioning plate and the positioning seat effectively prevents positional shift during rotation, ensuring concentricity and uniformity during the oiling process. This tooling is suitable for semi-automatic rotary oiling equipment, with a compact overall structure that is easy to assemble and disassemble, demonstrating promising prospects for industrial applications. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 A side view of a piston-mounted quick-release oiling fixture; Figure 2 A top-down schematic diagram of a piston-inlaid quick-release oiling fixture; In the diagram, 1-positioning plate; 2-positioning seat; 3-positioning chuck; 4-heat insulation ring; 5-mounting hole; 6-mounting groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Example 1

[0018] like Figure 1-2As shown, this embodiment provides a quick-installation oiling fixture for pistons with inserts, including a positioning plate 1, a positioning seat 2, a positioning chuck 3, a heat-insulating rubber ring 4, a mounting hole 5, and a mounting groove 6. This fixture is used for oiling different types of pistons in rotating equipment.

[0019] Specifically, the positioning disk 1 mates with the positioning seat 2 through the central mounting hole and is fixedly mounted on the turntable of the rotating equipment with screws. The inner cavity of the positioning disk 1 is provided with an annular mounting groove 6, and a heat insulation rubber ring 4 is installed at the bottom of the mounting groove 6 to provide heat insulation and wear protection.

[0020] The outer diameter of the positioning chuck 3 precisely matches the inner cavity of the positioning plate 1, enabling quick insertion and removal. The inner diameter of the positioning chuck 3 is equipped with multiple mounting holes 5 of varying sizes to accommodate pistons of different diameters, ensuring concentric positioning accuracy within the tooling. During lubrication, the worker inserts the piston into the mounting hole 5. Since the entire tooling is connected to the turntable of the rotating equipment, the rotation of the equipment causes the tooling and piston to rotate synchronously, thus ensuring that the lubrication device evenly applies rust-preventive oil to the outer ring of the piston's cast iron ring, achieving automatic lubrication. By replacing the positioning chuck 3 with different sizes to assemble different models of pistons, only the positioning chuck 3 needs to be removed and replaced when changing tooling, eliminating the need to disassemble the entire tooling set, making it more flexible and convenient. Example 2

[0021] This embodiment is a further optimization based on Embodiment 1, specifically: The positioning disk 1 and the positioning seat 2 are matched by an anti-rotation pin to prevent rotation deviation or misalignment during rotation.

[0022] Specifically, the anti-rotation pin is located on the positioning seat 2 and cooperates with the limiting hole on the positioning disk 1 to form an anti-rotation structure. This structure ensures that the positioning disk 1 will not undergo micro-displacement when rotating at high speed, thereby further improving the stability and consistency of the oiling operation.

[0023] The heat insulation ring 4 is mainly used to prevent the piston from contacting the tooling after the piston has hardened at high temperature, which would cause wear on the tooling. The mounting groove 6 of the positioning plate 1 has grooves of different diameters, and the heat insulation ring 4 is fixedly connected by being inserted into the grooves.

[0024] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A piston-mounted quick-release oiling fixture, characterized in that, The fixture includes a positioning plate (1), a positioning seat (2), a positioning chuck (3), a heat-insulating rubber ring (4), a mounting hole (5), and a mounting groove (6). The positioning plate (1) is set on the positioning seat (2) and fixedly mounted on the turntable of the rotating equipment by screws. The inner cavity of the positioning plate (1) is provided with a mounting groove (6), and a heat-insulating rubber ring (4) is installed at the bottom of the mounting groove (6). The outer diameter of the positioning chuck (3) is fitted with the inner cavity of the positioning plate (1), and the inner diameter of the positioning chuck (3) is provided with a mounting hole (5) for installing pistons of different diameters. The positioning chuck (3) is detachably installed in the positioning plate (1) to realize the quick replacement and positioning of pistons of different models. The entire fixture is driven by the rotating equipment to realize the uniform application of anti-rust oil to the cast iron ring of the piston.

2. The piston ring quick-release oiling fixture according to claim 1, characterized in that, An anti-rotation pin is provided between the positioning disk (1) and the positioning seat (2). The anti-rotation pin cooperates with the limiting hole on the positioning disk to prevent the tooling from shifting when it rotates.

3. The piston ring quick-release oiling fixture according to claim 1, characterized in that, The heat insulation ring (4) has a multi-diameter structure and is fitted into the groove of the mounting slot (6) to prevent the high-temperature piston from contacting the tooling and causing wear.

4. The piston ring quick-release oiling fixture according to claim 1, characterized in that, The mounting hole (5) is customized according to the different diameters of the piston, so that the piston can be installed concentrically and stably in the positioning chuck (3).

5. The piston ring quick-release oiling fixture according to claim 1, characterized in that, The positioning chuck (3) adopts a quick-release or plug-in structure, which can be quickly replaced without the need for tools.

6. The piston ring quick-release oiling fixture according to claim 1, characterized in that, The heat insulation ring (4) is made of high-temperature resistant elastic material and has the functions of heat insulation and buffering shock absorption.

7. The piston ring quick-release oiling fixture according to claim 1, characterized in that, The tooling is used in conjunction with a semi-automatic rotary oiling device. The tooling rotates synchronously with the device's turntable to achieve 360-degree oiling of the piston cast iron rings.

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