Independent Reference Positions for Punch and Die Height Measurement

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Solution Overview

Problem

Existing tool measuring apparatuses are inefficient in measuring punch and die bodies after grinding, as they require expensive devices with wide measurement ranges due to significant size differences between punches and dies, leading to inaccurate and costly measurements.

Innovation Solution

A tool measuring apparatus with independently set punch and die reference positions, integrated with a measurement device, support members, and an arithmetic unit that calculates heights based on measurement results, allowing for precise measurement of both punch and die bodies within a single measurement range.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single height gauge with wide measurement range is used to measure both punches and dies, then measurement coverage is improved, but measurement precision deteriorates and cost increases

Engineering Contradiction:

Improvemeasurement rangeVSAvoidmeasurement accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The measurement system is segmented into two independent reference positions: a first reference position for measuring punch bodies and a second reference position for measuring dies. This segmentation allows each reference position to be optimized for its specific measurement task, maintaining high precision while accommodating different measurement ranges for punches and dies separately.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a single height gauge with wide measurement range is used to measure both punches and dies, then measurement coverage is improved, but device cost increases

Engineering Contradiction:

Improvemeasurement rangeVSAvoiddevice cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If independent reference positions are used for punches and dies, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidapparatus structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The measurement device is designed with multi-functionality, where a single measurement device can measure both punch bodies and dies by switching between two reference positions. The support table and measurement device structure are designed to accommodate both measurement modes, reducing the need for separate measurement devices for punches and dies.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP2913116B1Die measurement apparatus

Publication Date: 2020.08.19 AMADA CO LTD

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AI summary

A tool measuring apparatus for measuring a height of a punch body and a die includes a measurement device that measures a distance from a punch reference position that is set preliminarily to an end surface of the punch body, and a distance from a die reference position that is set preliminarily to an end surface of the die. The punch reference position and the die reference position are placed independently from each other. According to the tool measuring apparatus, it is possible to measure a punch body and a die easily even in a case where a size of the punch body and a size of the die are significantly different from each other.