Презентация, доклад по английскому языку на тему Токарный станок 4 курс СПО

quick changing gear box, carriage and tailstock.

1. Bed: The bed is a heavy, rugged casting in which are mounted the working parts of the lathe. It carries the headstock and tail stock for supporting the workpiece and provides a base for the movement of carriage assembly which carries the tool.(Все узлы токарного станка монтируются на станине, стоящей на двух тумбах (ножках))
2. Legs: The legs carry the entire load of machine and are firmly secured to floor by foundation bolts.
3. Headstock: The headstock is clamped on the left hand side of the bed and it serves as housing for the driving pulleys, back gears, headstock spindle, live centre and the feed reverse gear. The headstock spindle is a hollow cylindrical shaft that provides a drive from the motor to work holding devices.(передняя бабка)
4. Gear Box: The quick-change gear-box is placed below the headstock and contains a number of different sized gears.(Коробка подач. служит для быстрого переключения скорости вращения ходового винта и ходового вала, т. е. для изменения подачи. )

serves the purpose of supporting, guiding and feeding the tool against the job during operation. The main parts of carriage are (каретка):
a). The saddle is an H-shaped casting mounted on the top of lathe ways. It provides support to cross-slide, compound rest and tool post (Суппорт токарного станка предназначен для перемещения резцедержателя с резцом в продольном, поперечном и наклонном к оси станка направлениях. Резцу можно сообщить движение вдоль и поперек станины как механически, так и вручную)
b). The cross slide is mounted on the top of saddle, and it provides a mounted or automatic cross movement for the cutting tool. поперечные салазки (суппорта)
c). The compound rest is fitted on the top of cross slide and is used to support the tool post and the cutting tool. резцовая каретка
d). The tool post is mounted on the compound rest, and it rigidly clamps the cutting tool or tool holder at the proper height relative to the work centre line. резцедержатель

clutches and levers required to move the carriage or cross slide. The engagement of split nut lever and the automatic feed lever at the same time is prevented she carriage along the lathe bed.(фартук-часть станка, в которой заключены механизмы для продольного и поперечного перемещений резца (подачи) и механизмы управления подачи)

6. Tailstock: The tailstock is a movable casting located opposite the headstock on the ways of the bed. The tailstock can slide along the bed to accommodate different lengths of workpiece between the centers. A tailstock clamp is provided to lock the tailstock at any desired position. The tailstock spindle has an internal taper to hold the dead centre and the tapered shank tools such as reamers and drills.(Задняя бабка  служит для поддержания другого конца обрабатываемой детали; используется также для установки сверла, развертки, метчика и других инструментов.)