1. 1 The tasks and basic operating skills of fitters

1. 1. 1 fitter's task

1. 1.2 Basic operation skills that a locksmith must possess.

1. 1.3 locksmith's technical safety knowledge

1.2 measuring tools and equipment commonly used by assemblers

1.2. 1 Common measuring tools for fitters

1.2.2 common equipment for assemblers

Thinking and practice

Chapter II Underline

2. 1 marking program

Preparation before marking

2. 1.2 intersection line

2. 1.3 Inspection, proofing and punching

2.2 marking tools

2.2. 1 Common tools

Indexing tool

2.3 Marking datum

2.3. 1 Selection principle of marking benchmark

2.3.2 Common marking matrix

2.4 Marking method

2.4. 1 plane marking

Three-dimensional marking

2.5 Revision and borrowing when marking

2.5. 1 purpose and principle of amendment

Borrowed materials

Thinking and practice

Chapter 3 Sawing

3. 1 sawing tool

3. 1. 1 saw frame

3. 1.2 saw blade

3.2 Sawing method

3.2. 1 saw blade installation

3.2.2 Pull out the saw

Example of sawing process

Thinking and practice

Chapter 4 chisel cutting

4. 1 chisel

4. 1. 1 Types, characteristics and uses of chisels

4. 1.2 Chisel part and geometric angle

4. 1.3 chisel grip method

4.2 Chiseling method

4.2. 1 hammer and its use

Chiseling method

Thinking and practice

Chapter V Filing

5. 1 file

5. 1. 1 Names of various parts of the file

5. 1.2 file classification and basic parameters

5. 1.3 file selection

5.2 Filing method

Use of documents

5.2.2 Filing method

Thinking and practice

Chapter VI Scraping

6. 1 scraping tool

6. 1. 1 benchmark tool

6. 1.2 auxiliary tools

6. 1.3 scraper

6.2 Display scraping agent and grinding point

6.2. 1 Types and applications of scraping display agents

6.2.2 Research Points

6.3 scraping method

6.3. 1 plane scraping method

6.3.2 Scraping method of parallel plane

6.3.3 Scraping method of vertical plane

6.3.4 Scraping method of curved surface

6.4 Scraping quality inspection

6.4. 1 Various plane contact accuracies of research points

6.4.2 Grinding points of two mutually sliding joint surfaces

6.4.3 Grinding point of sliding bearing

6.4.4 Scraping surface inspection

6.5 Scraping defects and prevention methods

Thinking and practice

Chapter VII Grinding

Chapter VIII Sheet Metal

Chapter IX Fitter Processing

Chapter 10 Assembly and adjustment of typical mechanism

Appendix 1 National Professional Standards for Violinists

Appendix 2 Test questions on knowledge requirements of intermediate fitter

Appendix 3 Answers to Knowledge Requirements of Intermediate Fitter

Appendix 4 intermediate fitter skill requirements test questions

refer to