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Multi-arm measuring instrument facilitating coordinate measuring value accuracy

A technology of coordinate measurement and measuring arm, which is applied in the field of multi-arm measuring instruments, can solve the problems of time-consuming and labor-intensive handling of workpieces or parts, the weight of three-coordinate measuring machines, and the inefficiency of measuring the shape of workpieces or parts, and achieve a light and simple structure. Effect

Inactive Publication Date: 2016-01-13
API ZC PRECISION INSTUMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing three-coordinate measuring machine is relatively heavy, and the workpiece or component needs to be transported to the measuring table of the three-coordinate measuring machine for measurement. The above-mentioned workpiece or component is transported in a time-consuming and laborious process, which is not conducive to the shape measurement of the workpiece or component In order to solve the problem of inefficiency, the invention provides a multi-arm measuring instrument that is beneficial to the accuracy of coordinate measurement values

Method used

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  • Multi-arm measuring instrument facilitating coordinate measuring value accuracy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, the multi-arm measuring instrument that facilitates the accuracy of coordinate measurement includes a measuring arm and a scanning head 6 fixed on the free end of the measuring arm. The measuring arm includes a first measuring arm 2, a second measuring arm 4, and a third measuring arm. Measuring arm 5, any end of the first measuring arm 2 and any end of the second measuring arm 4 are hingedly connected by a hinge part 3, and the other end of the second measuring arm 4 and the third measuring arm 5 are hingedly connected by a hinge part 3 Hinge connection, the scanning head 6 is fixed on the free end of the third measuring arm 5, the free end of the first measuring arm 2 is also provided with a fixing base 1, and the hinge axes of the two hinge parts 3 are parallel to each other;

[0021] The first measuring arm 2, the second measuring arm 4 and the third measuring arm 5 are all provided with temperature sensors, and the output terminals of each t...

Embodiment 2

[0025] This embodiment is further limited on the basis of embodiment 1, such as figure 1 As shown, in order to facilitate the rotation of the brake scanning head 6 relative to the third measurement arm 5, so that the mechanism can more dexterously complete the point and surface scanning, the third measurement arm 5 and the scanning head 6 pass through a hinge 3 They are hingedly connected, and the hinge axes of the three hinge parts 3 are parallel to each other.

[0026] As an implementation of a measuring arm with light weight, high specific strength and low coefficient of thermal sensitivity, the two ends of each of the first measuring arm 2, the second measuring arm 4 and the third measuring arm 5 are made of titanium alloy , The material between the two ends of the first measuring arm 2, the second measuring arm 4 and the third measuring arm 5 are all carbon fiber.

[0027] In order to have a higher connection strength between the components of the device, and at the same time...

Embodiment 3

[0029] This embodiment is further limited on the basis of any of the solutions provided in the above embodiments. In order to facilitate the scanning efficiency of the device, the number or type of the scanning head 6 fixed on the free end of the third measuring arm 5 is more than one .

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Abstract

The invention discloses a multi-arm measuring instrument facilitating coordinate measuring value accuracy. The multi-arm measuring instrument comprises a measuring arm and a scanning head fixed on the free end of the measuring arm. The measuring arm comprises a first measuring arm, a second measuring arm and a third measuring arm, wherein any one end of the first measuring arm is in hinged connection with any one end of the second measuring arm through a hinged portion, the other end of the second measuring arm is in hinged connection with the third measuring arm through one hinged portion, the scanning head is fixed on the free end of the third measuring arm, the free end of the first measuring arm is also provided with a fixing base, and hinged shafts of the two hinged portions are parallel to each other; and the first measuring arm, the second measuring arm and the third measuring arm are each provided with a temperature sensor. The multi-arm measuring instrument is portable in structure and high in measuring precision, thereby being particularly suitable for three-coordinate measurement of a heavy measured object.

Description

Technical field [0001] The present invention relates to the field of size measuring equipment, in particular to a multi-arm measuring instrument that is beneficial to the accuracy of coordinate measurement values. Background technique [0002] Coordinate measuring machines are mainly used in boxes, racks, gears, cams, worm gears, worms, blades, curves, and curved surfaces in machinery, automobiles, aviation, military industry, furniture, tool prototypes, machines and other small and medium-sized accessories, molds and other industries. Such measurement can also be used in electronics, hardware, plastics and other industries. It can accurately detect the size, shape and form tolerance of the workpiece, so as to complete tasks such as part inspection, shape measurement, and process control. Three-coordinate measurement is one of the most effective methods to measure and obtain dimensional data, because it can replace a variety of surface measurement tools and expensive combination ...

Claims

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Application Information

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IPC IPC(8): G01B21/00
Inventor 刘宁周姝李德维王伟
Owner API ZC PRECISION INSTUMENT CO LTD