公开(公告)号：US09797820B2

公开(公告)日：2017-10-24

申请号：US15033234

申请日：2014-11-04

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： William Masek ,  Peter Bermudez ,  Stephen M. McMahon ,  Adrian Riddick ,  Fernando L. Castro

IPC: G01N3/00 ,  G01N3/08 ,  G01N3/02 ,  G01L5/10 ,  G01N3/42 ,  G01L1/04

CPC classification number: G01N3/08 ,  G01L1/04 ,  G01L5/108 ,  G01N3/02 ,  G01N3/42 ,  G01N2203/0012 ,  G01N2203/0204

Abstract: The present disclosure provides an electro-mechanical fuse-type configuration built into the probe that contacts the specimen during materials testing. The design includes an internal pre-loaded compression spring and an electrical contact switch. The coil spring preloaded to the desired safety load results in the probe assembly directly passing the load from the probe tip to the load cell for loads under the point where the spring additionally compresses. Upon deflection of the spring in excess of safety preload, the spring internally compresses within the probe coupling rather than the probe tip continuing to displace into the specimen, thereby switching the state of the electrical contact switch and stopping operation of the materials testing device. In a further configuration, excessive travel of the load cell coupling is detected, and, in response, operation of the materials testing device is stopped.

公开(公告)号：US10928193B2

公开(公告)日：2021-02-23

申请号：US16099247

申请日：2017-05-11

Applicant: ILLINOIS TOOL WORKS INC. ,  Roy Allen ,  Stephen M. McMahon

Inventor： Roy Allen ,  Stephen M. McMahon

IPC: G01B21/04 ,  G06T7/80 ,  H04N13/246 ,  H04N13/239 ,  G01B3/30 ,  G01B11/16

Abstract: This disclosure relates to methods and tools for calibrating a camera-based three-dimensional optical metrology system such as that used for non-contact measurement of strain in a materials test system. A tool is provided which holds a calibration plate within a test space of a load frame of a materials testing device. The tool includes a spindle which rotates around a rotational axis to a series of detent rotational positions. The spindle engages the calibration plate by a bearing configuration which allows the tilt angle of the calibration plate to be varied. The rotation of the spindle and the variation of the tilt angle provides for two degrees of freedom of movement within the test space. The resulting sequence of calibration plate positions is systematic and repeatable.

公开(公告)号：US20150260624A1

公开(公告)日：2015-09-17

申请号：US14441181

申请日：2013-11-08

Applicant: ILLINOIS TOOL WORKS INC.

Inventor： Stephen M. McMahon ,  Michael D.R. Dakin ,  Nicholas M. Blanchard ,  Christopher E. Kade ,  James B. Smallwood

IPC: G01N3/42

CPC classification number: G01N3/42 ,  G01N2203/0206 ,  Y10T403/32008 ,  Y10T403/32032

Abstract: The present disclosure relates to a snap grip indenter mount, used on a hardness tester, particularly a microhardness tester, or similar apparatus. The snap grip indenter mount includes three major components—an indenter ball adapter, an upper housing assembly (or snap-grip male element) and a lower housing assembly (or snap-grip female element). The indenter ball adapter forms a ball-and-socket arrangement with the lower housing assembly. The lower housing assembly includes various set screws for fixing the orientation and symmetry of the indenter ball adapter with the lower housing assembly.

Abstract translation: 本公开涉及一种用于硬度计，特别是显微硬度测试仪或类似装置的卡扣式压头安装件。 快速夹持压头安装件包括三个主要部件 - 压头球适配器，上壳体组件（或卡扣式公元件）和下壳体组件（或卡扣式母件））。 压头球适配器与下壳体组件形成球窝布置。 下壳体组件包括用于固定压头球适配器与下壳体组件的取向和对称性的各种固定螺钉。