Brake disc form and location tolerance measuring method and measuring instrument for realizing same

A technology of shape and position tolerance and measurement method, applied in the direction of measurement devices, instruments, etc., can solve the problems of inability to measure the flatness of the upper and lower brake surfaces, the flatness of the plane reference plane, the coaxiality, etc.

CN102798365AInactive Publication Date: 2012-11-28ZHEJIANG JINDUN TECH CO LTD
4 Cites 26 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-11-28
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a measuring method for measuring parameters such as jumpy geometric senses and planeness of upper and lower brake surfaces of a brake disc of a car and a measuring instrument for realizing the method. According to the measuring method and the measuring instrument for realizing the method, jumping amount and planeness of paired reference of the upper and lower brake surfaces, the jumping amount of the top surface and planeness of paired reference, the planeness of an inner reference surface, coaxiality of paired reference hole of the outer circle surface, and thickness difference of the brake disc on any circumference of the two brake surfaces can be measured. The measuring method comprises the steps of: calibrating, positioning and rotating the work-piece for a circle; sampling data from 12 displacement sensors and 12 sampling points during the rotating process; and performing comparison and analysis on sampled data and qualified data in a database by an IPC (Industrial Personal Computer). The measuring instrument for realizing the method comprises a display device, a device body, a bracket and the like, wherein the device body comprises a rotating mechanism, a measuring mechanism, a compressing mechanism, a locating mechanism, a driving mechanism, a three-color alarm and the like; and the measuring mechanism is internally provided with 12 displacement sensors.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a measuring method for measuring geometric quantities such as runout and flatness of the upper and lower braking surfaces of an automobile brake disc and a measuring instrument for realizing the method. Background technique

[0002] With the rapid development of our automobile industry, the precision requirements for related auto parts are getting higher and higher. The traditional automobile (automatic) brake disc runout detection is carried out manually, which has low efficiency and low accuracy.

[0003] Chinese Invention Patent Publication CN 101210799A discloses a car brake disc assembly runout measuring instrument, including industrial microcomputer control electric box, equipment body, operating table, equipment protective cover, measuring protective cover, safety protection switch, on the operating platform The board is equipped with a brake surface runout measurement part, a pressing mechanism, and a positioning platf...

Examples

Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0032] Such as figure 1 , as shown in 2, a method for measuring the shape and position tolerance of a brake disc and a measuring instrument for realizing the method are used to measure the runout geometric quantity AB of the upper and lower braking surfaces of the automobile brake disc, and the parallelism of the upper and lower braking surfaces of the reference B , the runout geometric quantity AB of the top surface and the parallelism to the reference B, the flatness of the inner plane reference surface B, and the coaxiality of the outer diameter to A.

[0033] A method for measuring a shape tolerance of a brake disc, comprising:

[0034] Set 12 displacement sensors to collect data at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 sampling points of the brake disc to collect and measure the runout of the upper and lower braking surfaces and the parallelis...