Feeder-Mounted Placement Deviation Measurement for SMT Nozzle Exchange
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Solution Overview
Problem
The existing component mounting positional deviation amount measurement units are costly, space-constrained, and require frequent nozzle exchanges, making them inefficient and labor-intensive, especially when multiple machines are involved in a mounting line.
Innovation Solution
A modular component mounting positional deviation amount measurement unit is designed to be exchangeably set in a feeder setting section, allowing reuse across multiple machines, with a measurement nozzle placement section, measurement component placement section, and a measurement mounting table, enabling efficient measurement and reduced operator intervention through an automatic exchanging system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a component mounting positional deviation amount measurement unit is installed in each component mounting machine, then measurement accuracy can be improved, but manufacturing cost increases
Solution Approach 1:
The measurement unit is designed to be universally applicable across multiple component mounting machines by placing it in the feeder setting section which is common to all machines. A single measurement unit can be exchanged between different machines, eliminating the need for each machine to have its own dedicated measurement unit, thus reducing manufacturing costs while maintaining measurement accuracy.
2Measurement precision
If a measurement unit is installed in a vacant space within each component mounting machine, then measurement can be performed, but the size of the measurement unit is limited and new functions cannot be added
Solution Approach 1:
The measurement unit is extracted from the internal vacant space of each component mounting machine and relocated to the feeder setting section. This extraction allows the measurement unit to have sufficient space for various functions including measurement nozzle placement section, measurement component placement section, and measurement mounting table, enabling addition of new functions without being constrained by the limited internal space of each machine.
3Measurement precision
If a measurement nozzle is used for each component mounting machine, then measurement accuracy can be improved, but operator workload increases due to frequent nozzle setting operations
Solution Approach 1:
The measurement unit is designed with a measurement nozzle placement section that allows the measurement nozzle to be automatically held and positioned when the measurement unit is exchanged in the feeder setting section. This eliminates the need for operators to manually set the measurement nozzle in the nozzle station for each machine, as the nozzle is automatically positioned with the measurement unit, thereby reducing operator workload while maintaining measurement accuracy.
Data Source
AI summary
A component mounting positional deviation amount measurement unit is set in a feeder setting section of a component mounting machine so as to be exchangeable with a cassette-type feeder, and includes measurement nozzle placement sections in which measurement nozzles exchangeably held in a mounting head of the component mounting machine are placed; measurement component placement sections in which measurement components are placed; and a measurement mounting table on which a measurement fiducial mark is provided. When a component mounting positional deviation amount of the component mounting machine is measured, the measurement component is sucked by the measurement nozzle by holding the measurement nozzle in the mounting head, the measurement component is mounted on the measurement mounting table, and a deviation amount of a mounting position of the measurement component with respect to the measurement fiducial mark is measured as a component mounting positional deviation amount of the component mounting machine.