1. Have the basic knowledge of component stress analysis, and can judge the basic deformation of straight bar; 2. Have a basic understanding of the types, brands and properties of materials commonly used in mechanical engineering, and be able to select materials correctly;

3. Familiar with the structure and characteristics of commonly used mechanisms, master the working principle, structure and characteristics of main mechanical parts, and preliminarily master the selection method;

4. Understand the national standard of geometric accuracy of mechanical parts, and understand the marking of limit and fit, form and position tolerance;

5. Understand the principle, characteristics and application of pneumatic transmission and hydraulic transmission, correctly use common pneumatic and hydraulic components, and build simple common circuits;

6. Be able to analyze and deal with problems in the operation of general machinery, and have the ability to maintain general machinery.

7. Be able to use the knowledge and skills learned to maintain and improve simple machinery;

8. Understand the knowledge of mechanical energy saving, environmental protection and safety protection, and have the basic ability to improve lubrication and reduce energy consumption and noise;

9. Develop the habit of self-study and have a foundation for job hunting.