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Title: Tool calibration system for micromachining system

Abstract

A tool calibration system including a tool calibration fixture and a tool height and offset calibration insert for calibrating the position of a tool bit in a micromachining tool system. The tool calibration fixture comprises a yokelike structure having a triangular head, a cavity in the triangular head, and a port which communicates a side of the triangular head with the cavity. Yoke arms integral with the triangular head extend along each side of a tool bar and a tool head of the micromachining tool system. The yoke arms are secured to the tool bar to place the cavity around a tool bit which may be mounted to the end of the tool head. Three linear variable differential transformer's (LVDT) are adjustably mounted in the triangular head along an X axis, a Y axis, and a Z axis. The calibration insert comprises a main base which can be mounted in the tool head of the micromachining tool system in place of a tool holder and a reference projection extending from a front surface of the main base. Reference surfaces of the calibration insert and a reference surface on a tool bar standard length are used to set the three LVDT'smore » of the calibration fixture to the tool reference position. These positions are transferred permanently to a mastering station. The tool calibration fixture is then used to transfer the tool reference position of the mastering station to the tool bit.« less

Inventors:
 [1]
  1. (Sunnyside, WA)
Issue Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA
OSTI Identifier:
863300
Patent Number(s):
4142296
Application Number:
05/860,653
Assignee:
United States of America as represented by United States (Washington, DC) PNNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
tool; calibration; micromachining; including; fixture; height; offset; insert; calibrating; position; bit; comprises; yokelike; structure; triangular; head; cavity; communicates; yoke; arms; integral; extend; bar; secured; mounted; linear; variable; differential; transformer; lvdt; adjustably; axis; z; main; base; holder; reference; projection; extending; front; surface; surfaces; standard; length; set; positions; transferred; permanently; mastering; station; transfer; reference surface; tool calibration; tool bar; tool holder; front surface; tool head; differential transformer; variable differential; linear variable; reference position; micromachining tool; z axis; adjustably mounted; machining tool; /33/

Citation Formats

Miller, Donald M. Tool calibration system for micromachining system. United States: N. p., 1979. Web.
Miller, Donald M. Tool calibration system for micromachining system. United States.
Miller, Donald M. Tue . "Tool calibration system for micromachining system". United States. https://www.osti.gov/servlets/purl/863300.
@article{osti_863300,
title = {Tool calibration system for micromachining system},
author = {Miller, Donald M.},
abstractNote = {A tool calibration system including a tool calibration fixture and a tool height and offset calibration insert for calibrating the position of a tool bit in a micromachining tool system. The tool calibration fixture comprises a yokelike structure having a triangular head, a cavity in the triangular head, and a port which communicates a side of the triangular head with the cavity. Yoke arms integral with the triangular head extend along each side of a tool bar and a tool head of the micromachining tool system. The yoke arms are secured to the tool bar to place the cavity around a tool bit which may be mounted to the end of the tool head. Three linear variable differential transformer's (LVDT) are adjustably mounted in the triangular head along an X axis, a Y axis, and a Z axis. The calibration insert comprises a main base which can be mounted in the tool head of the micromachining tool system in place of a tool holder and a reference projection extending from a front surface of the main base. Reference surfaces of the calibration insert and a reference surface on a tool bar standard length are used to set the three LVDT's of the calibration fixture to the tool reference position. These positions are transferred permanently to a mastering station. The tool calibration fixture is then used to transfer the tool reference position of the mastering station to the tool bit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {3}
}

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