Measuring head mechanism for measuring thread comprehensive action boundaries based on envelope contour

A technology of thread synthesis and envelope contour, which is applied in the field of measuring head mechanism of thread synthesis action boundary measurement, can solve the problem that the actual axis of the thread cannot be determined, etc.

Inactive Publication Date: 2013-02-27
JIANGSU INST OF METROLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved in the present invention is that the existing thread measuring instrument expresses the three-dimensional thread parameters with a single cross-section, uses a single parameter to express the comprehensive quality of the thread, and the measurement method itself cannot determine the overall actual axis of the thread

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  • Measuring head mechanism for measuring thread comprehensive action boundaries based on envelope contour
  • Measuring head mechanism for measuring thread comprehensive action boundaries based on envelope contour

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Embodiment Construction

[0018] The preferred technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] As shown in the figure, the probe mechanism of the present invention based on the enveloping contour of the thread comprehensive action boundary measurement includes a fixed end of the probe and a moving end of the probe, and the fixed end of the probe and the moving end of the probe pass through the slider guide rail pair 3, the guide rail of the slider guide rail pair 3 is fixedly connected to the fixed end of the probe, and the slider of the slider guide rail pair 3 is fixedly connected to the moving end of the probe.

[0020] Wherein, the fixed end of the probe includes an overall fixed plate 1 and two micrometers 2, and the two micrometers 2 are symmetrically fixed on both sides of the overall fixed plate 1, and the two micrometers 2 One end of the stylus is in contact with the moving end of the stylus, and also includ...

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Abstract

The invention discloses a measuring head mechanism for measuring thread comprehensive action boundaries based on an envelope contour. The measuring head mechanism comprises a measuring head fixing end and a measuring head movable head, wherein the measuring head fixing end and the measuring head movable end are connected by a slide guide rail pair, a guide rail of the slide guide rail pair is fixedly connected with the measuring head fixing end, and a slide of the slide guide rail pair is fixedly connected with the measuring head movable end. The measuring head mechanism is used for measuring the comprehensive action sizes of the thread, and the comprehensive action sizes comprise tilting and vertical displacement; the measured data judgment standard is based on the envelope contour; the horizontal movement is realized by the slide guide rail pair and two springs; the vertical movement is realized by two sets of reed mechanisms; and the tilting of the thread measuring end is realized by the tangential matching of a steel ball and a V-shaped groove. The head measuring mechanism has the advantages that all movements required in the measurement are effectively realized, the system rigidity is high, the precision stability is high, and requirements of the novel measuring tasks can be well met.

Description

technical field [0001] The invention relates to the technical field of precision testing instruments, in particular to a measuring head mechanism for measuring the comprehensive action boundary of a screw thread based on an envelope profile. Background technique [0002] Thread connection is one of the commonly used joining methods of mechanical parts. With the rapid development of automobile manufacturing, engineering machinery, aerospace and other industries, thread connection, as an important connection form of precision machinery, is increasingly widely used. The quality of threaded connection often plays a vital role in the comprehensive quality, reliability and service life of mechanical products, especially with the development of space technology and modern weapons, high requirements are put forward for the precision of threaded connection. [0003] At present, the commonly used thread measurement methods mainly include: contour scanning measurement, three-coordin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/22G01B21/20G01B21/02
Inventor 王晓飞毛朔南马宇明钱征宇陈君
Owner JIANGSU INST OF METROLOGY
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