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- Technical Information
- [FA Mechanical Parts] CNC Turning
- Design Guidelines
- Turning Parts Recognition Conditions
Turning Parts Recognition Conditions
- In the Machiend Plates, round shapes and edged shapes are automatically determined.
- This section describes the recognition conditions.
Recognition of Turning parts
If the outer-most diameter has a cylindrical part, the shape is recognized for Turning Parts.
Recognition of Turning parts | Recognition of Machined plates |
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Outer- and Inner Diameter Recognition Conditions
The inner diameter and outer diameter are recognized based on their positional relationship with the central axis.
Recognition as “Outer- and Inner Diameter” | Not recognition as “Outer- and Inner Diameter” |
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Caution
- Automatic recognition is not supported for external threads (outer diameter)
- If a “internal threads (inner diameter) and hole” is recognized, the color attribute/CAD attribute link age function is enabled.>Automatic Hole Type Recognition
Keyway Recognition Conditions
- For keyways that match the JIS (B 1301:1996), tolerances are automatically set and can be changed in the dialog. *The default settings can be customised in user settings.
- *The default settings can be customised in user settings.
Key width specification | Recognized as a keyway | Not recognized as a keyway |
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Width recognized as an external keyway
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Matches with [b1] specifications: The fit tolerance of the external keyway is set automatically
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Does not match with [b1] specifications: The fit tolerance of the slotted hole is set manually
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Width recognized as an internal keyway
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Matches with [b2] specifications: The fit tolerance of the internal keyway is set automatically
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Does not match with [b2] specifications: Handled as “general tolerance” for internal keyway and the tolerance cannot be selected
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Caution
- “If the inside corners are not rounded, the shape will not be recognised as an “outside groove” and the fit tolerance cannot be set.
- If tolerance settings are required, design the groove with rounded corners that match the groove width.”
「外径キー溝・内径キー溝」の認識条件
以下の表に順次、規格内の場合認識されます。
注意
※2023年3月より対象となります。b1/b2 |
2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 | 28 | 32 |
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焼き肌
Recognition Conditions of holes on the cylindrical surface
- “A hole that is on the central axis is recognized as a “”hole”” supported for automatic quotation
- If the hole does not turn on the central axis, it is recognized as an “”other hole”” and is not supported for automatic quotation.”
- Even if no chamfer was modeled in 3D, a chamfer is produced at the hole entrance.
Recognized as a “hole” | Not recognized as a “hole” |
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End Face Groove Recognition Conditions
If the bottom of the end face groove is curved it is not recognized. Design with sharp edges.
recognized as an “end face groove” | Not recognized as an “end face groove” |
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