This page is compatible with FastGPT v4.17.0.
What the data for this category looks like
Data sources for this category include product drawings and 3D models, CAPP/CAM systems, machine tool collection data, tool management systems, MES, and measuring and inspection tool records. Updates are triggered per work order, per workpiece, per sampling batch, or per tool change. Daily documents include process routes, operation cards, tool lists, CNC programs, first-piece inspection records, patrol inspection forms, and measuring tool calibration records. Fields include tool life (unit: minutes), cutting speed (unit: r/min), feed rate (unit: mm/r), dimensional tolerance (unit: mm), and other similar parameters.
Constraints for HTTP interfaces and external systems
Scattered data sources and frequent updates require interfaces to support multi-source data pulling and incremental synchronization, to avoid excessive bandwidth usage from full data pulls. Significant structural differences exist between different document types, so interfaces must support field mapping based on document type to adapt to the process sequence of process routes and code blocks of CNC programs. Diverse update trigger scenarios require configured event-driven interface calls to adapt to trigger conditions such as work orders and tool changes. Fields use specialized engineering units, so interfaces must include built-in unified unit conversion logic to prevent parameter parsing errors. Additionally, errors in the machining process have severe consequences, so interfaces must add pre-check steps to prevent workpiece scrap or machine tool downtime caused by incorrect parameter inputs.
Configuration settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
| Interface timeout period | 600 seconds | Longer processing cycles are required for CNC program verification and process parameter comparison in metal cutting machining, to avoid valid requests being interrupted by short timeouts |
Request header Authorization | Fixed secret key | Adapt to permission verification logic of internal systems in machining workshops to ensure secure interface calls |
Return data responseData | Return only matching process entries and standard parameters | Reduce redundant data received by external systems and improve transmission efficiency |
Variable mapping variables | Map parameters by workpiece model and tool number | Adapt to scenarios with parallel calls for multiple work orders, to accurately match corresponding process specifications |
| Knowledge base recall limit | Top 8 entries | Cover common process routes and tool parameters, avoid excessive recalled data increasing processing load |
| Local file storage policy | Permanent storage | Adapt to long-term storage needs of images associated with CNC programs, prevent resource failure |
Three common configuration mistakes
- Interface response timeout, returning status code 504. Cause: The number of concurrent requests is not limited, and a large number of parallel API calls occupy excessive system resources, causing processing delays to exceed the preset threshold.
- CNC program screenshots linked in the knowledge base fail to load normally, showing an expiration prompt. Cause: Local file permanent storage rules are not configured, and temporarily cached image resources become invalid after system cache cleanup or restart.
- The process parameters returned by the interface do not match actual requirements, and the tool life parameter is missing. Cause: Variables are not mapped based on tool numbers, and parameters passed by external systems are not correctly associated with corresponding process specifications.
How to verify a successful configuration
- Pass parameters for a known workpiece model to the interface, check that the returned
responseDataincludes corresponding operation cards, cutting parameters, and other relevant content. - Simulate multiple concurrent requests, confirm that no 504 timeout errors occur in the interface, and the response time meets the preset threshold.
- Upload CNC program images to the knowledge base, call the interface, then check that the image links in the returned results can be accessed normally with no expiration prompts.
- Adjust the interface permission key, confirm that requests without a valid
Authorizationare denied access, to verify that the permission verification function works.
The values provided are common starting points and should be measured against the reader's own samples.