GB/T 39128-2020 in English
VALIDNumerical control system of machine tool—Human-machine interface
- Issued on:2020-10-11
- Implemented on:2021-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 39128-2020机床数控系统 人机界面》由TC367（全国机床数控系统标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Standard Background and Technology Evolution
As CNC machine tools develop towards high speed and intelligence, human-machine interface (HMI) has become a key factor affecting operational efficiency. GB/T 39128-2020, as my country's first national standard specifically for human-machine interface of machine tool CNC systems, integrates the experience of international standards such as ISO 9241, and combines the practical results of domestic enterprises such as Huazhong CNC and Guangzhou CNC.
Core terminology definitions
| Terms | Definition | Component elements |
|---|---|---|
| Hardware human-machine interface | Physical interaction devices such as control panels | Display devices, NC keyboards, operation buttons |
| Software human-machine interface | Graphical interaction system | Program interface, diagnostic interface, icon library |
| Full keyboard | QWERTY layout input device | Letter area, number area, function key area |
Hardware interface design specifications
5.1 Display device
The standard stipulates that the display area should be within the range of ±30° horizontal line of sight and 25-30° vertical line of sight of the operator, and the display content includes:
- Processing trajectory simulation (resolution ≥1280×720)
- Real-time feedback of coordinates (refresh rate ≥60Hz)
- Alarm information (red LED warning)
5.2 Operation panel
Case: A certain model of machining center adopts a graded keyboard design:
- Level 1 priority keys (numbers/letters) adopt a mechanical axis structure with a lifespan of ≥1 million times
- The emergency stop button complies with the red mushroom head design of GB/T 5226.1-2019
- Key spacing is 18mm, and the error operation rate is reduced by 42%
Software interface technical requirements
6.2 Interface architecture
| Interface type | Required functions | Icon specifications |
|---|---|---|
| Program interface | Line number editing, breakpoint resume | Use GB/T 3168 symbol library |
| Tool compensation interface | Tool radius compensation | Custom icons need to be registered |
| Diagnostic interface | PLC status monitoring | Alarm history retention ≥1000 |
6.4 Font Standards
Chinese and English font matching scheme:
- Chinese: Bold (menu items), Song (explanatory text)
- English: Arial/Cambria (parameter input)
- Minimum readable height 5mm (viewing distance 700mm)
Implementation Suggestions
- Hardware iteration: Prioritize upgrading level 1 priority buttons (such as X/Y/Z axis control keys)
- Software adaptation: Establish an icon library that complies with GB/T 16273.2
- Verification test: Conduct Fitts' Law ergonomics test
- Training focus: High-risk functions such as emergency stop operation and tool compensation setting
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