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Method for machining multi-cone coaxiality gauge

A processing method and metric technology, applied in the field of mechanical processing, can solve the problems of large cumulative error, dimensional dislocation of intersection, deformation of measuring tool products, etc., and achieve the effect of reducing processing difficulty, improving product qualification rate, and ensuring processing accuracy and quality requirements.

Inactive Publication Date: 2015-03-11
SHAANXI QIYUAN TECH DEV
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  • Summary
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Problems solved by technology

This method uses the end surface of the first cone as the reference plane, and processes the cones sequentially from the first cone to the back, which may easily cause the size of each intersection point to be misaligned. Because the size and position of the intersection point cannot be accurately grasped during grinding, human error and machine tool error The stacking in turn leads to too much cumulative error of the last cone, and the serious deformation of the measuring tool product, the concentricity between the cones is seriously out of tolerance, and the pass rate is only about 10%.

Method used

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Embodiment Construction

[0019] The processing method of multi-cone coaxial measuring gauge of the present invention is characterized in that, comprises the following steps:

[0020] The first step is to cut the material according to the shape of the workpiece, according to the formula

[0021] (1)

[0022] In the formula is the half-angle of the cone, is the diameter of the first cone, is the diameter of the second cone, is the distance between the first cone and the second cone;

[0023] Calculate the half angle of each cone, rough turn to size, and then quench the product;

[0024] The second step is to flatten the lettering and engrave it;

[0025] In the third step, after the product is engraved, first roughly grind the grinding wheel, which is used for rough grinding the blank. When grinding, the second and third cones are used as the positioning reference, and the front end of the grinding wheel is ground to the same degree as the first For the shape of the second cone with t...

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Abstract

The invention relates to the field of mechanical machining, in particular to a method for machining a multi-cone coaxiality gauge. The method comprises the following steps: discharging is carried out according to the appearance of a workpiece; according to the formula, rough turning is carried out on the workpiece to the size, and then the workpiece is quenched; characters are carved; cones are ground; oil treatment is carried out; instrument illumination is carried out until the size of an intersection point is qualified; the diameter of a chamber straight rod and the diameter of a rifling straight rod are machined, and when the size of the diameters is qualified, the size of the intersection point of the straight rods and the fifth cone and the relative distance of the fourth cone and the fifth cone relative to the second cone and the third cone are qualified, and finally the first cone is ground. According to the method, the machining problem existing in the gauge can be solved; the machining difficulty of the gauge can be greatly reduced; the machining precision and the quality requirement of the gauge are ensured; and the yield rate of the gauge is greatly improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method of a multi-cone coaxial gauge. Background technique [0002] Multi-cone coaxial gauges are mainly used for testing straight and tapered holes of hole products. This type of coaxial gauge has two structures: one is composed of a body and a handle and is used for assembly; the other is an integral structure and is used for parts processing. The (whole) body is composed of three parts: the positioning part (straight hole), the measuring part (tapered hole) and the handle. middle. The positioning part of the gauge is selected according to the length of the straight hole (generally determined according to the process), and the length of the measuring part is determined according to the length of the corresponding tapered hole of the product. For the product used for assembly, due to the interference of other parts, the gauge should give way partially. After ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B24B1/00
CPCB23P15/00G01B5/252
Inventor 张淑芬
Owner SHAANXI QIYUAN TECH DEV