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Bolt-type position tolerance integration testing fixture and detection method

A comprehensive inspection tool and comprehensive inspection technology, applied in measurement devices, mechanical measurement devices, angle/taper measurement, etc., can solve problems such as difficulty and inconvenience to carry, and achieve the effect of convenient operation, conducive to detection and quality assurance

Active Publication Date: 2016-01-20
CHINA RAILWAY LONGCHANG MATERIALS
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Problems solved by technology

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a comprehensive inspection tool for bolt shape and position tolerances and a detection method, which solves the difficulty and inconvenience in the detection of bolt shape and position tolerances (position degree, straightness, full runout) carry problem

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  • Bolt-type position tolerance integration testing fixture and detection method
  • Bolt-type position tolerance integration testing fixture and detection method
  • Bolt-type position tolerance integration testing fixture and detection method

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Embodiment Construction

[0020] A comprehensive inspection tool for shape and position tolerance of bolts, such as figure 1 As shown, it includes: measuring platform 1, first reference block 2, dial indicator 3, second reference block 4, limit block 5, set screw 6, etc., wherein:

[0021] One end of the measuring platform 1 is provided with a first reference block 2, the other end of the measuring platform is fixedly provided with a limit block 5, and a second reference block 4 is arranged inside the limit block 5, and the first reference block 2 and the second The reference block 4 is fixed on the measuring platform 1 by a set screw 6 .

[0022] The structure and characteristics of the first reference block 2 and the second reference block 4 are as follows:

[0023] Both the first reference block 2 and the second reference block 4 adopt a V-shaped structure, which can play a role in positioning the circular bolts and prevent radial movement. There are notches on both sides of the middle part of the...

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Abstract

The invention discloses a bolt-type position tolerance integration testing fixture and a detection method. The testing fixture comprises a measurement table, a dial indicator, a first reference block, a second reference block and a limited block, wherein the first reference block, the second reference block and the limited block are arranged on the measurement table. The first reference block is arranged on one end of the measurement table. The second reference block and the limited block are arranged on another end of the measurement table. The limited block are fixedly arranged on an outermost side of the measurement table. During detection, the bolt is arranged on the integration testing fixture, a distance between an outer side of the second reference block and an arc position of a bolt head is 5-15mm, and a support bolt length on the first reference block is 15-25mm. Compared to the prior art, by using the testing fixture and the method of the invention, there are the following advantages that the structure is simple and operation is convenient, which is convenient for quality control personnel and operation personnel to detect the product in scene; errors during measurement are reduced so that product quality is guaranteed.

Description

technical field [0001] The invention relates to a bolt and spike product inspection tool for high-speed railway fasteners, subway fasteners and ordinary fasteners, in particular to a measuring tool and a detection method for detecting the shape and position tolerance of bolts and spike products. Background technique [0002] With the development of high-speed, heavy-duty, and subway railways in China, rail fasteners play an increasingly important role in the high-speed development of railways, while bolt products account for a large proportion of fasteners, and bolt failure means that The entire fastener fails, which creates a major safety hazard for train operation. High-speed railways have high quality requirements and high construction costs. Therefore, improving product quality and reducing high-speed railway construction costs have become one of the research directions for high-speed railways. The shape and position tolerance detection of bolts has become one of the su...

Claims

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Application Information

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IPC IPC(8): G01B5/00G01B5/25
Inventor 张洪斌廖忠棋范方亮张小兵
Owner CHINA RAILWAY LONGCHANG MATERIALS
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