II. Divide the text into logical parts and entitle each part.

Date: 2015-10-07; view: 463.

Oral practice tasks

I. Agree or disagree to the following statements. Use the expressions:

1. Assembly operations have always been performed automatically.

2. Automated assembly operations are impossible if the quantities are large and the product is small.

3. A typical assembly machine consists of a single station.

4. Typical workheads include automatic screwdrivers, staking machines, riveting machines, welding heads, and other joining devices.

5. The product is being completed gradually as it proceeds through the assembly line.

6. Programmable assembly machines are represented by the staking and riveting machines employed in the electronics industry.

III. Answer the questions:

1. How have assembly operations traditionally been performed?

2. What problem has been given great attention to in recent years?

3. What production line principles are used for automated assembly operations?

4. What kind of automated assembly machines has been developed?

5. Where are assembly operations performed by these machines?

6. What does a typical assembly machine consist of?

7. What is a workstation equipped with?

8. What is the function of a workhead at each station?

9. What equipment do typical workheads include?

10. Why do such assembly machines belong to fixed automation?

11. Give an example of a programmable assembly machine.

12. Where are component-insertion machines employed?

IV. Do the tasks below:

1. Look through the scheme.

2. Using the scheme put some questions concerning automated assembly.

3. Comment on the scheme.

IV. Supplement every statement with some phrases and make a short report on each point:

1. Assembly operations may be performed manually or automatically.

2. Automated assembly machines operate in a manner similar to machining transfer lines.

3. A typical automated assembly machine consists of several workstations.