本课程以立德树人为根本任务，依据机械产品的数字化设计和质量检测岗位要求，以企业减速器精度的“认知—设计—检测”工作链构建：机械精度的认知、减速器的尺寸精度、几何公差、表面粗糙度、典型精度和数字化检测的六大项目。紧跟新技术，新增数字化检测的二维影像仪检测方法、三坐标的虚拟仿真实训平台和三坐标测量机的实操展示。

本课程涵盖国家标准和国际标准的应用，提供多层次的精度设计案例、传统检测案例、虚实结合的数字化检测案例和技能任务训练单，培养学习者合理设计和检测机械零部件精度和质量控制的综合能力。

课程设计和检测内容对接“数字化设计与制造”技能大赛和“机械产品质检员”行业资格证书、“机械数字化设计与制造（中级）”职业技能等级证书所需的设计检测技能。

This course is designed with the fundamental mission of cultivating morality and nurturing talents. Aligned with the job requirements for digital design, manufacturing, and quality inspection of mechanical products, it constructs a "cognition-design-inspection" workflow chain for speed reducer precision in enterprises through six core projects: mechanical precision cognition, dimensional precision of speed reducers, geometric tolerances, surface roughness, typical precision specifications, and digital inspection. Embracing emerging technologies, the curriculum incorporates new content including 2D image measuring instrument methods for digital inspection, virtual simulation training platforms for coordinate measuring machines (CMMs), and hands-on demonstrations of CMM operations.

The course integrates applications of both national and international standards, offering multi-level precision design cases, traditional inspection cases, hybrid virtual-physical digital inspection cases, and skill task training sheets. These components aim to cultivate learners' comprehensive abilities in rational mechanical component precision design, inspection, and quality control.

The curriculum content and inspection requirements align with the design and testing competencies required for the "Digital Design and Manufacturing" skills competition, the "Mechanical Product Quality Inspector" industry certification, and the "Mechanical Digital Design and Manufacturing (Intermediate)" vocational skill level certificate. It systematically develops learners' professional skills through progressive theoretical and practical training.

通过本课程的学习，培养会设计、能检测、懂制造的质量控制人才。

培养学生素质目标

（1）具有良好的职业道德和爱岗敬业的职业意识；

（2）遵守机械设计与检测规范，养成质量为先的意识；

（3）养成精益求精的工匠精神、团队合作和创新精神。

培养学生知识目标

（1）掌握互换性与标准化的基本知识；

（2）掌握尺寸精度、几何公差和表面粗糙度的选用和标注；

（3）掌握机械检测知识与计量器具的使用方法。

培养学生能力目标

（1）能正确查阅国家标准表和机械精度手册；

（2）能按照技术要求选用尺寸精度、几何公差和表面粗糙度；

（3）能选用计量器具和仪器完成尺寸精度、几何误差和表面粗糙度的检测。

Through the study of this course, we aim to cultivate quality control professionals who are capable of designing, inspecting, and understanding manufacturing.

Objectives for Cultivating Students' Qualities:

(1) Possess good professional ethics and a sense of professional dedication and love for their work;

(2) Adhere to mechanical design and inspection standards, fostering a consciousness of prioritizing quality;

(3) Cultivate a craftsmanship spirit of excellence, teamwork, and innovation.

Objectives for Cultivating Students' Knowledge:

(1) Master the basic knowledge of interchangeability and standardization;

(2) Grasp the selection and notation of dimensional accuracy, geometric tolerances, and surface roughness;

(3) Understand mechanical inspection knowledge and the usage of measuring instruments.

Objectives for Cultivating Students' Abilities:

(1) Be able to correctly consult national standards tables and mechanical precision manuals;

(2) Be able to select dimensional accuracy, geometric tolerances, and surface roughness according to technical requirements;

(3) Be able to select measuring instruments and equipment to complete the inspection of dimensional accuracy, geometric errors, and surface roughness.

在学习本课程之前，应先学习《高等数学》《工程制图与数字化表达》《工程力学》等，具有识图和制图能力，懂得机械的一般机构原理，具备机械制造的初步知识。

Before studying this course, it is recommended to have prior knowledge of "Advanced Mathematics," "Engineering Drawing and Digital Expression," and "Engineering Mechanics," possess the ability to interpret and create drawings, understand the general mechanical principles, and have preliminary knowledge of mechanical manufacturing.

一、参考教材：

1.《机械精度设计与检测》，ISBN：9787111755074，赵宏平、顾苏怡主编，机械工业出版社，2024年7月，第二批“十四五”职业教育江苏省规划教材。

2.《互换性与测量技术（第三版）》，ISBN：9787030634405，李正峰、黄淑琴主编，科学出版社，2023年8月，“十四五”职业教育国家规划教材。

3.《机械测量技术项目训练教程（第二版）》，ISBN:9787040530889，朱安莉主编，高等教育出版社有限公司，2023年7月，“十四五”职业教育国家规划教材。

二、产品几何技术规范（GPS）系列国家标准:

GB/T 1800.1-2020 产品几何技术规范(GPS) 线性尺寸公差ISO代号体系 第1部分：公差、偏差和配合的基础 现行

GB/T1800.2-2020 产品几何技术规范（GPS）极限与配合 第2部分：标准公差等级和孔、轴极限偏差表

GB/T 1803-2003 极限与配合 尺寸至18mm孔、轴公差带

GB/T 6093−2001 几何量技术规范(GPS) 长度标准 量块

GB/T 3177-2009 产品几何技术规范(GPS) 光滑工件尺寸的检验

GB/T 1182-2018 产品几何技术规范(GPS) 几何公差 形状、方向、位置和跳动公差标注

GB/T 3505-2009 产品几何技术规范(GPS) 表面结构 轮廓法 术语、定义及表面结构参数

GB/T 131-2006 产品几何技术规范(GPS) 技术产品文件中表面结构的表示法

GB/T 6060.2-2006 表面粗糙度比较样块 磨、车、镗、铣、插及刨加工表面

GB/T 6060.3-2008 表面粗糙度比较样块 第3部分：电火花、抛(喷)丸、喷砂、研磨、锉、抛光加工表面

GB/T 307.3-2017 滚动轴承 通用技术规则

GB/T 10095.1-2022 圆柱齿轮 ISO齿面公差分级制 第1部分：齿面偏差的定义和允许值

GB/T 0095.2-2023 圆柱齿轮 精度制 第2部分：径向综合偏差与径向跳动的定义和允许值

GB/T 1096-2003 普通型 平键

GB/T 1144-2001 矩形花键尺寸、公差和检验

GB/T 197-2018 普通螺纹 公差

GB/T 157-2001 产品几何量技术规范(GPS) 圆锥的锥度与锥角系列

GB/T 12360-2005 产品几何量技术规范(GPS) 圆锥配合

GB/T 11334-2005 产品几何量技术规范(GPS) 圆锥公差

1.三坐标虚拟仿真平台如何访问？

课程提供三坐标虚拟仿真平台链接，平台里有三坐标虚拟仿真软件包供下载安装，并提供登录账号密码和登录账号密码用于平台的24小时访问，登录账号密码设有时间期限，请大家及时查看“拓展项目 数字化虚实检测”的“任务2三坐标虚拟仿真检测”中公布的账号密码并在截止日期前完成虚拟仿真任务。

2.课程学习建议：

（1）课前预习课程视频和PPT，可以将自己的疑问提交到讨论区。

（2）请及时关注测验、作业、考试等提交截止日期，并及时完成。

（3）及时练习平台发布的设计任务和虚拟仿真平台的操作，以便深刻内化知识，提高机械精度设计与检测技能。

1.How to access the three-coordinate virtual simulation platform?

The course provides a link to the three-coordinate virtual simulation platform, where you can download and install the three-coordinate virtual simulation software package. Login credentials are also provided for 24-hour access to the platform. The login credentials have a time limit, so please check the username and password announced in "Task 2: Three-coordinate Virtual Simulation Inspection" under the "Extended Project: Digital Virtual-Real Inspection" section in a timely manner and complete the virtual simulation tasks before the deadline.

2.Suggestions for course learning:

(1) Preview the course videos and PPT before class, and submit any questions you have to the discussion area.

(2) Please pay attention to the submission deadlines for quizzes, assignments, exams, etc., and complete them in a timely manner.

(3) Practice the design tasks released on the platform and the operation of the virtual simulation platform promptly to deeply internalize the knowledge and improve your skills in mechanical precision design and inspection.