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Variable measurement space method of articulated coordinate measuring machine based on jaw joint

A coordinate measuring machine and tooth-embedded technology, which is applied in the field of variable measurement space, can solve the problems of reduced precision, waste of space, and inability to make reasonable use of measurement space, and achieve the effects of improving measurement accuracy, reducing waste, and simple operation

Active Publication Date: 2021-05-25
HANGZHOU DIANZI UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to propose a variable measurement space method for an articulated coordinate measuring machine based on a tooth-embedded joint in view of the fact that the articulated coordinate measuring machine cannot reasonably utilize its measurement space, resulting in waste of space and reduced precision. , according to the geometric characteristics of different tested parts, it can achieve high-precision measurement in a suitable measurement space, and the operation is simple

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  • Variable measurement space method of articulated coordinate measuring machine based on jaw joint
  • Variable measurement space method of articulated coordinate measuring machine based on jaw joint
  • Variable measurement space method of articulated coordinate measuring machine based on jaw joint

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] The variable measurement space method of the articulated coordinate measuring machine based on the tooth-embedded joint is as follows:

[0030] Step 1. Connect the adjacent articulated arms through the tooth-embedded joints to build an articulated coordinate measuring machine based on the tooth-embedded joints; figure 1 , 2 , 3, 4 and 5, the tooth-embedded joint includes the shaft main shaft 1, the fixed claw plate 5, the movable claw plate assembly, the joint upper bushing 7, the joint lower bushing 14, the circular grating angle encoder 10, and the locking card Buckle 15, locking slot 16 and spring 17; shaft sleeve 8 is supported on the rotating shaft main shaft 1 through bearing 1 2 and bearing 2 12; fixed claw plate 5 is connected with shaft sleeve 8 through flat key 6; one end of fixed claw plate 5 The shaft shoulder integrally formed on t...

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Abstract

The invention discloses a variable measurement space method of an articulated coordinate measuring machine based on a jaw joint. The measurement space of the existing articulated coordinate measuring machine has great redundancy, but the precision is lost. According to the invention, the adjacent articulated arms are connected through the jaw joints to construct the articulated coordinate measuring machine based on the jaw joints. According to the invention, the movable claw disc and the fixed claw disc are embedded and separated, so that locking and free rotation of the joint of the articulated coordinate measuring machine can be effectively realized. According to the geometrical characteristics of a measured object, through comparing a measurement space ball of the measured object with different measurement spaces of the articulated coordinate measuring machine based on the jaw joint in a jaw joint locking scheme at different positions, a suitable measurement space of the articulated coordinate measuring machine is selected, the space waste is reduced, and the measurement precision is improved at the same time.

Description

technical field [0001] The invention belongs to the technical field of coordinate measurement, and in particular relates to a variable measurement space method of an articulated coordinate measuring machine based on tooth-embedded joints. Background technique [0002] Articulated coordinate measuring machine is a kind of precision measuring equipment. Its serial open chain structure enables the articulated coordinate measuring machine to achieve more measurement space through the rotation of the joints. It has the advantages of large measuring range and good flexibility. However, this series structure also makes the error of each joint be amplified step by step through the length of the rod, resulting in a decrease in measurement accuracy. [0003] The currently existing articulated coordinate measuring machines usually have six degrees of freedom, that is, there are six revolving joints. Each rotary joint contains a circular grating angle encoder to read the angle value, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/24
CPCG01B11/005G01B11/24
Inventor 王文梁倩倩王乐孙涛韩付明
Owner HANGZHOU DIANZI UNIV
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