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End of preview. Expand in Data Studio

螺栓拧紧质量智能检测数据集(Bolt Tightening Quality Detection Dataset)

自建数据集:面向重型机械装配车间螺栓拧紧工序,基于螺栓拧紧「力矩-转角」力学模型模拟生成,用于拧紧质量智能检测与工艺追溯系统的算法开发与验证。

数据集概述

  • 用途:螺栓拧紧过程质量状态自动判定(5 类多分类任务)
  • 样本规模:3000 条完整拧紧周期(基准集 1200 条 + 扩展集 1800 条)
  • 采样频率:100 Hz
  • 采集量:力矩(N·m)、转角(deg)双通道时间序列
  • 螺栓规格:M12 / M16 / M20 / M24

质量标签(5 类)

编码 标签 说明
0 合格 力矩升至目标扭矩后保持
1 欠拧 力矩提前停止,终值低于目标扭矩
2 过拧 力矩越过目标扭矩后停止
3 滑牙 力矩升至峰值后急剧跌落(螺纹滑丝)
4 虚拧 力矩全程低位(错扣/未正确啮合)

目录结构

bolt-tightening-quality/
├── raw/
│   ├── benchmark/
│   │   ├── records.jsonl    # 标准工况基准集(1200 条)
│   │   └── metadata.csv     # 元数据与标签汇总
│   └── extended/
│       ├── records.jsonl    # 扩展工况集(1800 条)
│       └── metadata.csv
├── processed/               # 预处理后特征数据集
│   ├── train.csv            # 训练集(70%,Z-score 标准化)
│   ├── val.csv              # 验证集(20%)
│   ├── test.csv             # 测试集(10%)
│   └── feature_metadata.json# 特征选择与标准化参数
├── generate_data.py         # 数据生成脚本
└── preprocess.py            # 预处理与特征工程脚本

数据格式

records.jsonl 每行一条 JSON 记录:

{
  "id": "B0001",
  "spec": "M12",
  "grade": "8.8",
  "wear": 0,
  "temp": 20.0,
  "target_torque": 80.0,
  "speed": 181.51,
  "label": 0,
  "label_name": "合格",
  "angle": [0.0, 1.8, ...],
  "torque": [-0.6, 1.3, ...]
}

processed/*.csv 为提取并标准化后的 8 维特征向量,列含 id, spec, source, label, label_name 及 8 个特征(torque_meantorque_peak_angletotal_angleavg_raterising_slopeangle_deviationfinal_torquehold_fluctuation)。

生成方法

数据基于螺栓拧紧力学模型(空行程 → 贴合 → 弹性上升 → 保持/跌落 四阶段)模拟生成,噪声采用「1.5% 读数 + 底噪」的相对噪声模型。扩展集额外覆盖不同螺栓性能等级(8.8/10.9/12.9)、工具磨损状态、环境温度等工况。

复现

python generate_data.py   # 生成原始数据
python preprocess.py      # 预处理 + 特征工程 + 7:2:1 划分

关联项目

完整课程设计项目(系统方案、业务数据、提示词追溯)见 GitHub 仓库: https://github.com/CYCCCC119/caoyuchen111.md

License

MIT

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