Device for conveniently verifying geometric tolerance of gas valve hole

Abstract

The utility model relates to the technical field of gas valves, and discloses a device for conveniently verifying the geometric tolerance of a gas valve hole, which comprises a positioning rod, one side of the outer part of the positioning rod is in threaded connection with a positioning flange I, and the other side of the outer part of the positioning rod is in threaded connection with a positioning flange II; the shape of the positioning rod comprises a front guiding positioning head and a 117-degree sealing coloring face, two positioning steps are arranged in the middle of the positioning rod, threads are arranged on the side, close to the middle of the positioning steps, of the positioning rod, and the positioning rod is a finished product obtained after heat treatment through one-time machining. A handle mounting hole is formed in the end, away from the first positioning flange, of the positioning rod. According to the utility model, the positioning rod, the positioning flange I and the positioning flange II are matched with each other, so that the front and rear positioning flanges are screwed one by one and are attached to the positioning step of the positioning rod during installation, and the effects of simplicity in installation and convenience in use during assembly are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a device for conveniently testing the shape and position tolerance of a gas valve hole. Background Art

[0002] As the times continue to advance, the global efforts to limit emissions are increasing year by year, and the research and development of new energy sources are also intensifying. In the shipbuilding industry, there are more and more types of new clean fuels, and methanol engines, as one of them, have begun to emerge and grow. The replacement of fuels will inevitably bring about changes in the main engine structure, and the cylinder head, as one of the most important components, has undergone tremendous changes in the valve hole structure, which has put forward new heights in processing capabilities and inspection requirements. Therefore, how to accurately verify is particularly critical.

[0003] The valve hole is generally in the form of a stepped hole, and the precision requirements of each positioning surface and sealing surface are extremely high. This is because high-pressure gas fuel is much more dangerous than diesel during the use of the main engine. Once improper assembly and poor sealing occur, accidents are likely to occur. Therefore, the valve hole must be effectively inspected after fine machining and before assembly to ensure its reliability. In view of the above problems, a device for conveniently inspecting the shape and position tolerance of the gas valve hole is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a device for conveniently verifying the shape and position tolerance of a gas valve hole, aiming to improve the problems of improper assembly and poor sealing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for conveniently checking the shape and position tolerance of a gas valve hole, comprising a positioning rod, one side of the outer side of the positioning rod is threadedly connected to a positioning flange 1, and the other side of the outer side of the positioning rod is threadedly connected to a positioning flange 2.

[0006] As a further description of the above technical solution:

[0007] The shape of the positioning rod includes a front guide positioning head and a 117° sealing colored surface.

[0008] As a further description of the above technical solution:

[0009] The middle part of the positioning rod is provided with two positioning steps, and one side of the middle part of the positioning rod close to the positioning steps is provided with a thread.

[0010] As a further description of the above technical solution:

[0011] The positioning rod is a finished product processed by one-cutting after heat treatment, and a handle installation hole is arranged at one end of the positioning rod away from the positioning flange.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, by cooperating between the positioning rod, the first positioning flange and the second positioning flange, the front and rear positioning flanges can be tightened one by one and fit with the positioning step of the positioning rod during installation, thereby achieving the effect of easy installation and convenient use during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model discloses a front view of a device for conveniently testing the shape and position tolerance of a gas valve hole.

[0015] Legend:

[0016] 1. Positioning rod; 2. Positioning flange 1; 3. Positioning flange 2. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0018] Reference Figure 1 The utility model provides an embodiment: a device for conveniently checking the shape and position tolerance of a gas valve hole, comprising a positioning rod 1, a positioning flange 2 being threadedly connected to one side of the outer side of the positioning rod 1, and a positioning flange 2 3 being threadedly connected to the other side of the outer side of the positioning rod 1. The shape of the positioning rod 1 includes a guide positioning head at the front and a 117° sealing colored surface. Two positioning steps are arranged in the middle of the positioning rod 1, and a thread is arranged on one side of the positioning rod 1 close to the middle of the positioning step. The positioning rod 1 is a finished product processed with one knife after heat treatment, and a handle mounting hole is arranged at one end of the positioning rod 1 away from the positioning flange 2.

[0019] Specifically, the shape of the positioning rod 1 includes a guide positioning head at the front, a 117° sealing colored surface, two positioning steps and threads in the middle, and a handle mounting hole is added at the tail end. After heat treatment, the finished product is processed in one cut, thereby effectively ensuring the coaxiality of the positioning rod 1 and the verticality of the positioning step and other form and position tolerances. After independent processing, the outer circle of the positioning flange 1 2 and the positioning flange 2 3 is left with a small amount, and the final adjustment can be made through secondary cutting or grinding after the overall assembly.

[0020] Working principle: During installation, tighten the positioning flange 1 2 and the positioning flange 2 3 one by one and fit them with the positioning step of the positioning rod 1. After the positioning flange 1 2 and the positioning flange 2 3 are independently processed, a small amount is left on the outer circle. After the overall assembly, the final adjustment is made through secondary cutting or grinding, thereby achieving the effect of easy installation and convenient use during assembly. After use, they are properly disassembled and stored. The effectiveness cycle of this tooling can reach 1 time / 6 months.

[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for conveniently checking the shape and position tolerance of a gas valve hole, comprising a positioning rod (1), characterized in that: One side of the exterior of the positioning rod (1) is threadedly connected to a positioning flange 1 (2), and the other side of the exterior of the positioning rod (1) is threadedly connected to a positioning flange 2 (3).

2. A device for conveniently testing the shape and position tolerance of a gas valve hole according to claim 1, characterized in that: The shape of the positioning rod (1) comprises a front guide positioning head and a 117° sealing colored surface.

3. The device for conveniently testing the shape and position tolerance of a gas valve hole according to claim 1 is characterized in that: Two positioning steps are arranged in the middle of the positioning rod (1), and a thread is arranged on one side of the middle of the positioning rod (1) close to the positioning steps.

4. The device for conveniently testing the shape and position tolerance of a gas valve hole according to claim 1 is characterized in that: The positioning rod (1) is a finished product after heat treatment and one-step machining. The end of the positioning rod (1) away from the positioning flange (2) is provided with a handle mounting hole.

Images