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Optical probe with integrally formed interface and protection unit

A probe and interface technology, applied in the interface field of probe heads

Active Publication Date: 2020-02-14
HEXAGON TECH CENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This system provides fairly tight tolerances for angular alignment, which is at the same time a disadvantage of the method

Method used

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  • Optical probe with integrally formed interface and protection unit
  • Optical probe with integrally formed interface and protection unit
  • Optical probe with integrally formed interface and protection unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0081] figure 1 Shown is a two-part interface 10 designed to repeatedly and precisely connect a measuring probe to the probe head of a coordinate measuring machine according to the invention. A cut-away perspective view of the interface 10 is shown. The interface 10 includes a machine interface part 11 and a probe interface part 21 .

[0082] The machine interface portion 11 is made of hard metal and is annularly formed. A receptacle is arranged in the center of the machine interface 11 for attaching an optical fiber or a ferrule inside. Furthermore, the machine interface 11 comprises at least three recesses 13 (two of which are shown) which represent one side of a three-point bearing, in particular a 3-ball bearing. The entire module described is integrally formed (ie formed from one piece) with very high precision. This configuration allows components to be designed with very high positional accuracy, further providing high accuracy repeatability with respect to interfac...

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PUM

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Abstract

The invention relates to an optical probe with an integrally formed interface and a protection unit. The measuring probe is adapted to be mounted to the probe head of a coordinate measuring machine for determining at least one spatial coordinate of a measuring point on an object to be measured, the measuring probe comprising: an optical measuring unit adapted to provide distance measurement; and a probe interface (21) for modular mounting of the measuring probe to the probe head of the coordinate measuring machine and transmission of optical signals between the probe and the coordinate measuring machine, in particular bi-directional transmission. The probe interface (21) is designed as an integrally formed module, the module provides remountability of the measuring probe on the probe head, and comprises: a one-sided part of the ball bearing, said one-sided part comprising at least three a recess or at least three hemispherical protrusions (23); a housing (22) formed to receive a defined type of probe cannula (24) in a known precise position and orientation.

Description

technical field [0001] The present invention generally relates to the specific design of an interface for connecting an optical measurement probe to the probe head of a coordinate measuring machine (CMM). Background technique [0002] It is common practice to inspect post-production workpieces on a coordinate positioning device, such as a coordinate measuring machine (CMM), in order to check the correctness of predetermined object parameters, such as the size and shape of the object. Furthermore, detection of surfaces of unknown objects is of interest in many industrial applications. Such measurements can also typically be provided using a coordinate measuring machine or any other suitable type of scanning device. [0003] In a conventional 3D coordinate measuring machine, the probe head is supported for movement along three mutually perpendicular axes (in the X, Y and Z directions). Thereby, the stylus head can be guided to any arbitrary point in the space of the measurem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
CPCG01B11/005G01B11/007G01B21/047G02B6/3849G02B6/3881G02B6/3882
Inventor J·舍加D·布吕尔曼托马斯·延森
Owner HEXAGON TECH CENT GMBH