Переведите на русский язык в письменной форме абзацы 3,4 и 5.

5. Найдите соответствующие ответы на вопросы и напишите их в той последовательности, в которой заданы вопросы:

Вопросы

1. What operations is the engine lathe used for?

2. What are the principal units of the lathe?

3. What units are located on the bed?

4. What is the function of the tailstock?

5. Where are the handles and levers mounted?

Ответы

a. To support one end of the work turned between centres.

b. On the front of the apron.

c. For turning, drilling, screwcutting and others.

d,.The headstock, the saddle and the tailstock.

e. The bed, the headstock, the tailstock and the carriage with the apron.

6. Закончите предложения, выбрав соответствующий вариант окончания:

1. The unit that contains the spindle and the gearbox is 2. The unit that supports one end of the work turned be­tween centres is called....

3. The unit which carries the tool is called ....

a) the carriage;

b) the headstod

c) the tailstock

4. The unit on saddle and the is called …

a) the carriage

b) the bed;

c) the headstod

5. The units, actions of the tool are controlled, are called.... a) guideways;

b) the saddle and the apron; c) levers and handles.

Вариант 5

1. Найдите в правой колонке русские эквиваленты слов и словосочетаний:

1. non-ferrous metal a. зубчатая передача

2. turning mill b. многодисковая фрикционная муфта

3. roughing operations c. скорость движения стола

4. finishing operations d. черновая обточка

5. turret head e. токарный станок

6. side head f. высокая жесткость

7. facing g. чистовая обточка

8. drilling h. торцевое точение

9. high rigidity i. револьверная головка

10. gearbox j. боковой суппорт

11. multidisk friction clutch k. сверление

12. work feed l. клинообразный ремень

13. table speed m. цветные металлы (не железис­тые)

14. cross-rail n. поперечина (траверса)

15. V-belt o. подача заготовки

2. Переведите на русский язык встречающиеся в тексте интерна­циональные слова:

universal, vertical, operation, metal, steel, horizontal, cylinder, machine, electric, motor,

3. Простите текст и выполните следующие за ним упражнения:

VERTICAL TURNING MILLS

1. The single-column vertical turning mills are universal high-speed machines. They are designed for roughing and finishing operations on parts made of steel, non-ferrous metals.

2. The machines are provided with two heads: vertical turret head and horizontal head. Vertical turret head travels along the horizontal ways of the cross-rail. Horizontal side head moves along the vertical ways of the column.

3. The machine performs the following operations: cylindrical turning, facing, cutting, drilling, etc.

4. High rigidity of machinges and their units as well as the wide range of table speeds and work feeds allow machining at most favourable cutting speeds and work feeds.

5. Motion to the table is transmitted from the main drive electric nWor by means of V-belts and gearbox.

6. For starting and stopping the table rotation the gearbox is provided with multidisk friction clutch.

Переведите на русский язык в письменной форме абзацы 1,2 и3.

5. Найдите соответствующие ответы на вопросы и напишите их в той последовательности, в которой заданы вопросы:

Вопросы

1. What are the single-column vertical turning mills designed for?

2. What mechanisms are the machines provided with?

3. What operations does the machine perform?

4. By what means is motion to the table transmitted?

5. What mechanism is the gearbox provided with?

Ответы

a. By means of V-belts and gearbox.

b. For roughing and finishing operations.

c. With multidisk friction clutch.

d. Cylindrical turning, facing, cutting and drilling.

e. With vertical turret head and horizontal side head.

6. Закончите предложения, выбрав соответствующий вариант окончания:

1. Vertical turret head travels along.... a) the horizontal ways of the cross-rail;

2. Horizontal side head travels along.... b) the vertical ways of the column.

3. Motion to the table is transmitted by .... a) cross-rail;

b) V-belts and gearbox.

4. This machine is called.... a) vertical turret head;

b) vertical turning mill.

Вариант 6

1. Найдите в правой колонке русские эквиваленты слов и словосочетаний:

1. grinder a. кронштейн

2. lever b. заготовка

3. wheel slide c. продольное направление

4. cross-feed d. налаживать станок (для какой-л. работы)

5. Wheel spindle e. регулировать

6. bracket f. шлифовальный станок

7. wheel head g. шлифовальный суппорт

8. to clamp h. рычаг

9. to set-up i. поперечная подача

10. to adjust j. шлифовальная головка

11. longitudinal direction k. шпиндель шлифовального круга

12. workpiece l. зажимать

2. Переведите на русский язык встречающиеся в тексте интерна­циональные слова:

universal, cylinder, type, mass, massive, construction, hydraulic, control, function, spindle, motor.

3. Простите текст и выполните следующие за ним упражнения:

THE HYDRAULIC GRINDER

1. This universal grinder is designed for grinding cylindrical holes and faces of workpieces. It is widely used for lot production in various types of machinebuilding plants.

2. Machines of this type are of very massive construction, but they are designed in such a way that they can be operated as easily as machines of smaller sizes.

3. They are hydraulically operated and controlled by a single lever located at the front end of the machine. This single lever controls all functions of the machine including all movements of the wheel slide, cross-feed, starting and stopping the work of the spindle.

4. The wheel spindle is driven by a V-belt from a motor located on a bracket on the wheel slide. The cross-feed for the wheel slide is operated by a hydraulic unit.

5. The wheel head is clamped on the top surface of the table. W)(en setting up the grinder, the wheel head can be adjusted in a longitudinal direction to suit the length of the workpiece.