Cylinder part water pressure detection tool

Abstract

The invention discloses a cylinder part water pressure detection tool, which comprises a compression screw, a base, a V-shaped sealing ring, a sealing cover, a fastening screw and a connector, and is characterized in that the compression screw is used for fixing the base on a hydraulic press workbench; the V-shaped sealing ring is mounted in the sealing grooves of the base and the sealing cover; the sealing cover and the connecting body are assembled and connected through a fastening screw; the connecting body is connected with the hydraulic press pressing sliding table, and the hydraulic press pressing sliding table is used for driving the connecting body and the sealing cover to move up and down; a to-be-detected cylinder part is installed between the base and the sealing cover, water is injected into an inner cavity of the cylinder part through the water inlet below the base, and under the action of water pressure, the V-shaped sealing ring is attached to the outer circle surface of the cylinder part to achieve sealing. And the V-shaped sealing ring is made of a rubber material. The problem that a sealing ring is short in service life and inconvenient to use during existing water pressure detection is solved.

Description

Technical Field

[0001] This invention relates to the field of fixtures, specifically to a tool for testing the water pressure of cylindrical parts. Background Technology

[0002] Thin-walled cylindrical parts typically require hydrostatic testing. The method involves sealing both ends of the part and then injecting water into its inner cavity, aiming for a pressure of 27-28 MPa for 10 seconds. Currently, O-rings are primarily used, utilizing the cylindrical surface of the inner bore for sealing. However, due to the 28 MPa hydrostatic test pressure, the O-ring requires a large deformation rate, causing its diameter to protrude beyond the sealing groove. This results in the O-ring's protruding portion being sheared during installation, shortening its lifespan. In practice, a set of O-rings can only be used to test 2-3 parts before breaking and failing to seal. Summary of the Invention

[0003] The purpose of this invention is to provide a water pressure testing tool for cylindrical parts, so as to solve the problem that the short life of the sealing ring is not conducive to use in existing water pressure testing.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a hydraulic pressure testing tool for cylindrical parts, comprising: a clamping screw, a base, a V-shaped sealing ring, a cover, a fastening screw, and a connecting body. The clamping screw is used to fix the base on the hydraulic press workbench; the V-shaped sealing ring is installed in the sealing groove of the base and the cover; the cover and the connecting body are assembled and connected by the fastening screw; the connecting body is connected to the hydraulic press clamping slide, which is used to drive the connecting body and the cover to move up and down; the cylindrical part to be tested is installed between the base and the cover, and water is injected into the inner cavity of the cylindrical part through the water inlet below the base. Under the action of water pressure, the V-shaped sealing ring adheres to the outer surface of the cylindrical part to achieve a seal.

[0005] As a further improvement to the above technical solution: The V-shaped sealing ring is made of rubber.

[0006] The base forms a sealing structure at the end that contacts the cylindrical part, thus sealing the lower end of the cylindrical part when it is installed on the base; when the cover moves downward to the set position under the action of the hydraulic press pressing slide, it seals the upper end of the cylindrical part.

[0007] The upper surface of the base is provided with a positioning platform for positioning cylindrical parts, and the outer diameter of the positioning platform is adapted to the inner diameter of the cylindrical parts to be tested.

[0008] The cap has a guide cone surface at the end that contacts the cylindrical part.

[0009] A pressure sensor is provided between the connector and the hydraulic press pressing slide to monitor and provide feedback on the pressing force applied to the cover in real time.

[0010] A high-pressure water pipe is connected to the water inlet of the base, and a control valve and a pressure gauge are installed on the high-pressure water pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are: The V-shaped sealing ring, made of rubber, is designed to better suit the sealing requirements of the outer circle of cylindrical parts compared to the traditional O-ring. During installation, it can prevent the sealing ring from being damaged by shearing, thus significantly extending its service life. Under water pressure, the V-shaped sealing ring can tightly fit the surface of the part, and the sealing fit increases synchronously with the increase of water pressure, effectively preventing leakage problems in high-pressure testing scenarios of 27-28MPa and ensuring reliability during the pressure holding process.

[0012] The upper surface of the base is equipped with a positioning platform that matches the inner diameter of the cylindrical part, which can quickly achieve accurate positioning of the part during installation and avoid affecting the sealing effect due to part misalignment; the guide cone surface at one end of the cover provides guidance for part assembly, reduces the difficulty of installation and alignment, reduces operation time, and can significantly improve the operation efficiency during batch testing.

[0013] The pressure sensor between the connector and the hydraulic press pressing slide can monitor and provide feedback on the sealing pressure in real time, preventing damage to parts or sealing rings due to excessive pressure or sealing failure due to insufficient pressure. The high-pressure water pipe at the base inlet is equipped with a control valve and pressure gauge, which can accurately adjust the inlet water pressure to ensure that the water pressure is stable within the 27-28MPa detection range, and can also intuitively monitor the water pressure status in real time, reducing the risk of high-pressure operation and ensuring that the detection process is safe and controllable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the V-shaped sealing ring structure of the present invention.

[0015] Reference numerals: 1. Clamping screw; 2. Base; 3. V-shaped sealing ring; 4. Cover; 5. Fastening screw; 6. Connecting body. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 3 As shown, the cylindrical part water pressure testing tool of this embodiment includes: a clamping screw 1, a base 2, a V-shaped sealing ring 3, a cover 4, a fastening screw 5, and a connecting body 6. The clamping screw 1 is used to fix the base 2 on the hydraulic press workbench; the V-shaped sealing ring 3 is installed in the sealing groove of the base 2 and the cover 4; the cover 4 and the connecting body 6 are assembled and connected by the fastening screw 5; the connecting body 6 is connected to the hydraulic press clamping slide, which is used to drive the connecting body 6 and the cover 4 to move up and down; the cylindrical part to be tested is installed between the base 2 and the cover 4, and water is injected into the inner cavity of the cylindrical part through the water inlet below the base 2. Under the action of water pressure, the V-shaped sealing ring 3 fits against the outer surface of the cylindrical part to achieve a seal.

[0021] V-shaped sealing ring 3 is made of rubber.

[0022] The base 2 forms a sealing structure at the end that contacts the cylindrical part, so that the lower end of the cylindrical part is sealed when the cylindrical part is installed on the base 2; the cover 4 moves downward to the set position under the action of the hydraulic press pressing slide, so that the upper end of the cylindrical part is sealed.

[0023] The upper surface of the base 2 is provided with a positioning platform for positioning cylindrical parts. The outer diameter of the positioning platform 21 is adapted to the inner diameter of the cylindrical part to be tested. This solves the positioning problem when placing the part, improving operational efficiency and sealing reliability. The cover 4 has a guide cone surface at the end that contacts the cylindrical part. The base 2 is also provided with a guide cone surface to avoid interference or offset with the upper end of the part when pressed down, ensuring uniform sealing.

[0024] A pressure sensor is installed between the connector 6 and the hydraulic press pressing slide to monitor and provide feedback on the pressing force applied to the cover 4 in real time. This prevents damage to the product and ensures effective sealing.

[0025] A high-pressure water pipe is connected to the water inlet of base 2, and a control valve and pressure gauge are installed on the high-pressure water pipe.

[0026] In use, the cylindrical part is first installed on the base 2 and the lower end of the cylindrical part is sealed. The water press injects water into the inner cavity of the cylindrical part through the water inlet under the base 2 until the inner cavity of the cylindrical part is full. Then the slide of the water press drives the 4-sealing cover to move slowly downward to the set position, and the upper end of the cylindrical part is also sealed. The water press continues to inject water, and the water pressure in the inner cavity continues to rise. The high-pressure water enters the V-shaped sealing ring 3. Since the V-shaped sealing ring 3 is made of rubber, it adheres tightly to the surface of the cylindrical part under the action of high-pressure water. The higher the water pressure, the tighter the seal of the sealing ring.

[0027] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics of the solutions is not described in detail here. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water pressure testing tool for cylindrical parts, characterized in that, include: The components include a clamping screw (1), a base (2), a V-shaped sealing ring (3), a cover (4), a fastening screw (5), and a connecting body (6). The clamping screw (1) is used to fix the base (2) on the hydraulic press workbench. The V-shaped sealing ring (3) is installed in the sealing groove of the base (2) and the cover (4). The cover (4) and the connecting body (6) are connected by the fastening screw (5). The connecting body (6) is connected to the hydraulic press clamping slide, which is used to drive the connecting body (6) and the cover (4) to move up and down. The cylindrical part to be tested is installed between the base (2) and the cover (4). Water is injected into the inner cavity of the cylindrical part through the water inlet below the base (2). Under the action of water pressure, the V-shaped sealing ring (3) fits against the outer surface of the cylindrical part to achieve a seal.

2. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, The V-shaped sealing ring (3) is made of rubber.

3. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, The base (2) forms a sealing structure at the end that contacts the cylindrical part. When the cylindrical part is installed on the base (2), the lower end of the cylindrical part is sealed. When the cover (4) moves downward to the set position under the drive of the hydraulic press pressing slide, the upper end of the cylindrical part is sealed.

4. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, The upper surface of the base (2) is provided with a positioning platform for positioning cylindrical parts, and the outer diameter of the positioning platform is adapted to the inner diameter of the cylindrical parts to be tested.

5. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, The cover (4) has a guide cone surface at the end that contacts the cylindrical part.

6. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, A pressure sensor is provided between the connector (6) and the hydraulic press pressing slide to monitor and provide feedback on the pressing force applied to the cover (4) in real time.

7. The water pressure testing tool for cylindrical parts according to claim 1, characterized in that, The base (2) is connected to a high-pressure water pipe at its water inlet, and the high-pressure water pipe is equipped with a control valve and a pressure gauge.

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