The "Tool Change Report" is a very specialised analysis.
Background information: Many production machines have tools in use that need to be changed gradually. (e.g. turning chisels that wear out). After a tool change, you don't want to "set up" the machine again every time. So these high-precision tools are set up in an upstream process.
The author himself remembers this from 25 years ago. Using a magnifying glass with crosshairs, the milling cutters were inspected for the new tool and the deviations in diameter were documented and entered into the PLC of the production machine after the tool change.
The process is still the same, only highly mechanised nowadays.
But how good is this "facility"? This is what the "tool change report" attempts to find out.
The first part of the process is as follows:
- X components are produced and measured (approx. 50 pieces).
- The measured values are collected in a separate DFQ file.
- This DFQ file is saved as a new DFQ using the "Save for tool change" command
This new dfq-file does not have any values anymore. But for every characteristic the average of the values have been saved in K2100, the “Target-value”
A tool change is now carried out.
X components are produced and measured (approx. 50 pieces)
- The measured values are collected in a separate DFQ file.
This both dfq – files are now merged with the Menu-Option “File – Merge Files”. The first file is the header, the second file is added to the empty dataset.
With this new dataset, the Tool Change report can be viewed, to analyse how good the system is to prepare the tools.
The requirements can not be changed. They are fixed inside of the application.