Valve element machining tool

Abstract

The utility model relates to the technical field of aviation machining, in particular to a valve element machining tool. The device comprises a clamping body, an avoiding body used for avoiding the valve element and a connecting screw rod. The clamping body is of a stepped cylindrical structure, a small-end cylindrical structure is of a three-jaw clamping structure, a large-end cylindrical structure is of a three-jaw positioning structure, the avoiding body is of a cylindrical structure, one end of the avoiding body extends outwards to form a connecting rod, the large-end cylindrical structure of the clamping body is fixedly connected with one end of the avoiding body, and the other end of the avoiding body is connected with the valve element through a connecting screw rod. According to the valve element machining device, valve element parts machined through the method are good in form and location tolerance, a set of complete valve element machining device is formed, and machining accuracy is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation machining technical field especially relates to a valve core processing tool. BACKGROUND

[0002] There are a large number of valve assembly products in the field of aviation machining and manufacturing, and the valve core parts in the valve assembly products require high cylindricity and gap. In the existing processing method, one end is clamped in the chuck, and the other end is processed, after reaching the requirement, the clamped and processed one end is clamped and processed in the chuck lining paper, and the other end is processed. The method has the following problems: the same coaxiality may be caused by multiple processing of the surface to be processed, it is difficult to guarantee the full length diameter difference; clamping the processed surface may cause fine clamping scratches; the multi-step processing efficiency is low. UTILITY MODEL CONTENT

[0003] The utility model aims at: a valve core processing tool is provided, so that the product is clamped once to complete the process processing, and the processing efficiency and processing quality of the product are improved.

[0004] The technical scheme of the utility model is:

[0005] A valve core processing tool device is provided, which comprises a clamping body, an avoiding body for avoiding the valve core and a connecting screw rod.

[0006] The clamping body is a stepped cylindrical structure, the small end cylindrical structure is a three-jaw clamping structure, and the large end cylindrical structure is a three-jaw positioning structure. The avoiding body is a cylindrical structure, one end of which extends outward to connect a connecting rod. The large end cylindrical structure of the clamping body is fixedly connected with one end of the avoiding body, and the other end of the avoiding body is connected with the valve core through the connecting screw rod.

[0007] A blind hole is formed in the large end face of the clamping body, and an internal thread structure is arranged in the blind hole. An external thread structure is arranged on the connecting rod, and the external thread structure of the connecting rod is locked with the internal thread structure of the clamping body.

[0008] The connecting screw rod is a stepped cylindrical external thread structure.

[0009] The other end of the avoiding body is a flat structure, and an internal thread hole is arranged in the flat structure. The internal thread hole of the avoiding body is locked with the external thread of the small end of the connecting screw rod.

[0010] The valve core is a rotary body part with an internal thread structure at one end.

[0011] The large end of the connecting screw rod is matched with the internal thread structure of the valve core to realize the installation of the valve core.

[0012] The external diameter of the avoiding body is smaller than the external diameter of the valve core part.

[0013] Advantages:

[0014] The utility model solves the problem of needing many working steps installation in the grinding process of the valve core, and the machining points are that the proper avoiding body needs to be set according to the size of the valve core outer circle, and the proper clamping body needs to be set according to the size of the three-jaw chuck. In the machining process, the clamping body and the avoiding body are fastened and connected with the part by the locking force of the connecting screw rod, and the machining quality and efficiency of the valve core are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the utility model embodiment, and obviously, the following described drawings are only some embodiments of the utility model, and for the person skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0016] Figure 1 It is a valve core machining tool structure schematic view of the utility model embodiment;

[0017] Figure 2 It is the connecting screw rod structure schematic view of the utility model embodiment;

[0018] Figure 3 It is the avoiding body schematic view of the utility model embodiment;

[0019] Figure 4 It is the clamping body schematic view of the utility model embodiment. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the following will be combined with the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0021] The features and illustrative embodiments of each aspect of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely illustrative of the present application and is not intended to limit the present application to any particular setting or method. The present application covers any improvements, alternatives, and modifications of the structures, methods, devices, and the like, which are within the spirit and scope of the present application. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessary obscurity of the present application.

[0022] It should be noted that the features of the embodiments of the present application and the embodiments can be combined with each other without conflict, and each embodiment can be mutually referenced and quoted. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figures 1-4 The present application can enable the valve core to be clamped and machined once in the grinding process, and achieve high-precision requirements for the outer circle gap and cylindricity of the valve core.

[0024] A valve core machining tool is provided, which comprises a three-jaw chuck 1, a clamping body 2, the clamping body being a stepped cylindrical structure, the small-end cylindrical structure being a three-jaw clamping structure, the large-end cylindrical structure being a three-jaw positioning structure, and the large-end face having an internal thread structure; an avoiding body 3, the avoiding body being a cylindrical structure, one end being an external thread structure and the other end being a flat structure with an internal thread structure; a connecting screw rod 4, the connecting screw rod being a stepped cylindrical external thread structure; and 5 being a rotary body valve core part with a threaded structure at one end;

[0025] Figure 2 , Figure 3 , Figure 4 As shown in the accompanying drawings, the connecting screw rod, the avoiding body, and the clamping body are schematic diagrams, which comprise a connecting screw rod 6, a connecting screw rod 7, which are respectively installed in cooperation with the internal thread of the valve core part and the internal thread 9 of the avoiding structure; the avoiding body external thread structure 8 is installed in cooperation with the internal thread structure 11 of the clamping body, and the clamping body external circle structure 10 is the clamping end of the equipment chuck.

[0026] Further, the valve core part is a rotary body part with a threaded structure at one end;

[0027] Further, the clamping body is connected with the avoiding body in cooperation through the internal thread structure of the large-end face;

[0028] Further, the external circle size of the avoiding body is smaller than the external circle size of the valve core part;

[0029] Further, the outer thread structure of one end of the connecting screw rod is matched with the inner thread structure of the avoiding body;

[0030] Further, the outer thread structure of the other end of the connecting screw rod is matched with the inner thread structure of the valve core part.

[0031] The method for using the tool comprises the following steps:

[0032] S1, the three-jaw structure 1 is fixed to the outer circular structure 10 of the clamping body;

[0033] S2, the outer thread 8 of the avoiding body is matched and installed with the inner thread structure 11 of the clamping body;

[0034] S3, the outer thread structure 7 of the connecting screw rod is matched and installed with the inner thread structure 9 of the avoiding body, and the outer thread structure 6 of the connecting screw rod is matched and installed with the end surface inner thread structure of the valve core part;

[0035] S4, after the overall structure is installed, all the surfaces to be machined are present in the machinable area when using the oil stone and the grinding sleeve in the machining process, and the valve core surface and the balance groove and the like can be machined at one time, so that the cylindricity and the gap difference of the overall part are ensured.

[0036] The utility model solves the problem of multi-step machining of the valve core in the machining process, and ensures the machining quality and machining efficiency of the valve core.

[0037] It should be noted that, without conflict, those skilled in the art can flexibly adjust the order of the above operation steps according to actual needs, or flexibly combine the above steps, etc.

[0038] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model.

Claims

1. A valve core machining tool, characterized in that: Includes a clamping body (2), a clearance body (3) for avoiding the valve core, and a connecting screw; The clamping body is a stepped cylindrical structure, the small end cylindrical structure is a three-jaw clamping structure, the large end cylindrical structure is a three-jaw positioning structure, the avoidance body is a cylindrical structure, one end of which extends outward with a connecting rod, the large end cylindrical of the clamping body is fixedly connected to one end of the avoidance body (3), and the other end of the avoidance body (3) is connected to the valve core through a connecting screw.

2. The valve core machining tool according to claim 1, characterized in that: The large end face of the clamping body has a blind hole with an internal thread structure inside; the connecting rod has an external thread structure, and the external thread structure of the connecting rod cooperates with the internal thread structure of the clamping body to lock it in place.

3. The valve core machining tool according to claim 2, characterized in that: The connecting screw has a stepped cylindrical external thread structure; The other end of the clearance body is a planar structure with an internal threaded hole; the internal threaded hole of the clearance body is locked in place with the external thread of the small end of the connecting screw.

4. The valve core machining tool according to claim 1, characterized in that: The valve core is a rotating part with an internal thread structure at one end.

5. The valve core machining tool according to claim 4, characterized in that: The large end of the connecting screw mates with the internal thread structure of the valve core to achieve valve core installation.

6. The valve core machining tool according to claim 3, characterized in that: The outer diameter of the clearance body is smaller than the outer diameter of the valve core component.

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