Omega-shaped sliding block type rapid inspection fixture for inspecting degree of symmetry of elastic strip and inspection method

A symmetry and slider-type technology, which is applied in angle/taper measurement and other directions, can solve problems such as inability to quickly detect and cumbersome inspection methods for symmetry indicators, and achieve the effect of simplifying the measurement process

Active Publication Date: 2017-12-01
CHINA RAILWAY LONGCHANG MATERIALS
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002]The existing inspection method for the symmetry index in the ω-shaped spring is too cumbersome and cannot be quickly detected in mass production. The original detection method is as As shown in Figure 1, the left Record the side dimension a1, then detect and record the right dimension a2, and calculate the absolute value of a1-a

Method used

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  • Omega-shaped sliding block type rapid inspection fixture for inspecting degree of symmetry of elastic strip and inspection method
  • Omega-shaped sliding block type rapid inspection fixture for inspecting degree of symmetry of elastic strip and inspection method

Examples

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Example Embodiment

[0014] A kind of ω-type spring bar symmetry slider type quick checker, such as figure 2 As shown, it includes: base 1, adjustable device 2, return pressure spring 3, reference positioning plate 4, reference axis 5, slider 6, guide rail 7, pointer 8, scale line 9, etc., among which:

[0015] Base 1 is the bearing platform of all components;

[0016] The adjustable device 2 is installed on the carrying platform, and can adjust the initial positions of the left and right sliders;

[0017] The return compression spring 3 is a compression spring for the slider reset, and cooperates with the adjustable device to complete the calibration of the initial position of the slider and the automatic reset of the slider;

[0018] The reference positioning plate 4 is the positioning reference when the elastic bar is in place, and is fixed on the carrying platform;

[0019] The reference axis 5 is the positioning reference during the spring strip test, and is fixedly installed on the center...

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Abstract

The invention discloses an omega-shaped sliding block type rapid inspection fixture for inspecting degree of symmetry of an elastic strip and an inspection method. The inspection fixture comprises a base, a reference locating plate, a reference shaft and sliding blocks, wherein the reference locating plate, the reference shaft and the sliding blocks are arranged on the base, the reference shaft is fixedly installed on the center line of the base, the sliding blocks are symmetrically installed on the left side and the right side of the reference shaft, a pointer is arranged on each sliding block, and scale marks corresponding to the pointers are arranged on the base. Compared with the prior art, the omega-shaped sliding block type rapid inspection fixture has the positive effects that the measurement flow is simplified, the pointers are matched with the scales of dial plates after the elastic strip is in place, no vernier caliper is needed in use, calculation is not needed, and the amplitudes of swing of the pointers are directly used to measure whether the degree of symmetry of the elastic strip is over the limit or not.

Description

technical field [0001] The invention relates to a slider-type rapid inspection tool for the symmetry of an ω-shaped spring bar and an inspection method. Background technique [0002] The existing inspection method for the symmetry index in the ω-shaped spring is too cumbersome and cannot be quickly detected in mass production. The original detection method is as follows: figure 1 As shown, first use professional molds and vernier calipers to detect and record the left dimension a1, then detect and record the right dimension a2, and calculate the absolute value of a1-a2 according to the recorded results as the value of the symmetry of the ω elastic strip. A value less than the specified value is qualified. This measurement method requires the operator to be trained in the use of the vernier caliper and requires the operator to simultaneously record and calculate during the measurement process. Contents of the invention [0003] In order to overcome the above-mentioned sho...

Claims

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Application Information

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IPC IPC(8): G01B5/25
CPCG01B5/25
Inventor 项珩
Owner CHINA RAILWAY LONGCHANG MATERIALS
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