Machining device for sealing spherical surface of valve element of eccentric semi-ball valve

Abstract

The utility model discloses a processing device for a sealing spherical surface of a valve core of an eccentric semi-ball valve, which comprises a supporting plate fixedly arranged on a machine tool and a positioning rod penetrating through a positioning hole of the supporting plate and matched with the positioning hole of the supporting plate, the supporting plate is used for determining a spherical surface processing rotating shaft, and the positioning rod is used for installing the valve core. A spherical surface machining rotating shaft is determined through the supporting plate, the valve element is installed through the positioning rod, and the purposes that the precision of a sealing surface of a machined ball center is improved, the eccentricity and the height of the sealing surface are guaranteed, and the production quality of the eccentric semi-ball valve is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the production and application field of hemispherical valves, in particular to a processing device for the sealing spherical surface of an eccentric hemispherical valve core. Background Art

[0002] In the existing technology, the hemispherical valve is a new type of valve developed to solve the technical difficulties of conveying two-phase mixed flow media such as solutions and slurries. The successful development of the hemispherical valve provides a reliable control valve for the difficult situation of easy precipitation, scaling, and precipitation in the solution process of chemical, petroleum, gas, metallurgy, electronics and other industrial sectors, and provides a new and excellent product for improving the level of industrial management equipment in my country. However, due to the offset between the symmetry axis and the rotation axis of the ball center sealing surface of the eccentric hemispherical valve, this design allows the valve core to rotate normally and avoids continuous wear of the sealing surface and the valve seat during the rotation process. However, it also makes the production of the ball center sealing surface somewhat difficult.

[0003] How to achieve high-precision machining of the sealing surface of the ball center is a technical problem that needs to be solved urgently at this stage.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a processing device for the sealing spherical surface of the valve core of an eccentric semi-ball valve, so as to improve the accuracy of the sealing surface processed out of the spherical center, ensure the eccentricity and height of the sealing surface, and improve the production quality of the eccentric semi-ball valve.

[0006] In order to achieve the above object, the technical solution of the utility model is as follows:

[0007] A device for processing the sealing spherical surface of an eccentric hemispherical valve core comprises a support plate fixedly arranged on a machine tool and a positioning rod passing through a positioning hole of the support plate and cooperating with the positioning hole of the support plate. The support plate is used to determine the spherical surface processing rotation axis, and the positioning rod is used to install the valve core.

[0008] The utility model determines the spherical surface processing rotation axis through a support plate and uses a positioning rod to install the valve core, thereby achieving the purpose of improving the accuracy of the sealing surface processed with the spherical center, ensuring the eccentricity and height of the sealing surface, and improving the production quality of the eccentric semi-ball valve.

[0009] Further preferably, the positioning rod is provided with a spline that matches the positioning rod, and the spline can prevent the valve core inserted into the positioning rod from rotating.

[0010] As a further preference, an L-shaped square is provided for calibrating the valve core.

[0011] The utility model has the following advantages:

[0012] 1. The utility model uses a support plate to determine the spherical surface processing rotation axis and uses a positioning rod to install the valve core, thereby achieving the purpose of improving the accuracy of the sealing surface processed with the spherical center, ensuring the eccentricity and height of the sealing surface, and improving the production quality of the eccentric semi-ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a structural schematic diagram of a device for processing the sealing spherical surface of an eccentric hemispherical valve core disclosed in an embodiment of the utility model;

[0015] Figure 2 It is a top view schematic diagram of a device for processing the sealing spherical surface of an eccentric hemispherical valve core disclosed in an embodiment of the utility model;

[0016] The numbers and letters in the figure represent the corresponding component names:

[0017] 1. Support plate 2. Positioning rod 3. L-shaped square 4. Spline 5. Positioning sleeve DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a device for processing the sealing spherical surface of an eccentric semi-ball valve core. The working principle of the device is to determine the spherical surface processing rotation axis through a support plate and to install the valve core using a positioning rod, thereby achieving the purpose of improving the accuracy of the sealing surface processed out of the spherical center, ensuring the eccentricity and height of the sealing surface, and improving the production quality of the eccentric semi-ball valve.

[0020] The present invention is further described in detail below in conjunction with embodiments and specific implementation methods.

[0021] like Figure 1 and Figure 2 As shown, a device for processing the sealing spherical surface of an eccentric hemispherical valve core includes a support plate 1 fixedly arranged on a machine tool, a positioning rod 2 passing through a positioning hole of the support plate and cooperating with the positioning hole of the support plate, and an L-shaped square 3 for calibrating the valve core, wherein the support plate is used to determine the spherical surface processing rotation axis, and the positioning rod is used to install the valve core.

[0022] The positioning rod is provided with a spline 4 matched with the positioning rod, and the spline can prevent the valve core inserted into the positioning rod from rotating.

[0023] The specific use steps of the utility model are as follows: Figure 1 and Figure 2 As shown, in the actual production process, the support plate 1 is fixed on the machine tool to determine the spherical machining rotation axis, the positioning rod 2 passes through the positioning hole of the support plate, the valve core is inserted into the positioning rod and the spline 4 is used to position the valve core for rotation, which determines the eccentricity and the height of the center of the ball.

[0024] And after the positioning sleeve 5 is inserted into the upper end of the valve core, the nut is screwed in so that the nut has no pressure on the parts to prevent the valve core from being deformed, and also to ensure that the positioning sleeve is not thrown out during processing.

[0025] Finally, use an L-shaped square 3 to level the valve core. After correction, tighten the nut and you can process the spherical shape dimensions according to the drawing dimensions.

[0026] Through the above, the dimensional accuracy, eccentricity and spherical center height of the spherical center sealing surface are guaranteed. The tooling makes the parts more stable during the processing, and the axial direction is in a free state without being subjected to force, thereby reducing the dimensional error caused by clamping deformation.

[0027] Through the above method, the utility model provides a device for processing the sealing spherical surface of an eccentric semi-ball valve core. By using a support plate to determine the spherical surface processing rotation axis, the valve core is installed using a positioning rod, thereby achieving the purpose of improving the accuracy of the sealing surface processed out of the spherical center, ensuring the eccentricity and height of the sealing surface, and improving the production quality of the eccentric semi-ball valve.

[0028] The above is only a preferred implementation of a processing device for an eccentric hemispherical valve core sealing spherical surface disclosed in the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A processing device for the sealing spherical surface of an eccentric hemispherical valve core, characterized in that: It comprises a support plate fixedly arranged on a machine tool and a positioning rod passing through a positioning hole of the support plate and cooperating with the positioning hole of the support plate. The support plate is used to determine the spherical surface machining rotation axis, and the positioning rod is used to install a valve core.

2. The device for processing the sealing spherical surface of the valve core of an eccentric hemispherical valve according to claim 1, characterized in that: The positioning rod is provided with a spline matched with the positioning rod, and the spline can prevent the valve core sleeved on the positioning rod from rotating.

3. The device for processing the sealing spherical surface of the valve core of an eccentric hemispherical valve according to claim 1, characterized in that: An L-shaped square is also provided for calibrating the valve core.

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