Презентация "Turning machine for metal"

Turning machine for metal

Выполнил Кузьмин Фёдор группа 24

Lathes for metal

• Lathes for metal, in general, have roughly the same layout - the layout of the nodes. In this presentation we list and describe the main nodes, the principle of their work and the purpose.

The main nodes are:

• Bed
• Headstock assembly
• Spindle
• Feeder
• Carriage
• Apron
• Tailstock assembly

Bed

• The main fixed part of the machine is a frame consisting of 2 vertical edges. Between them there are several transverse bars, providing stiffness of the stator.
• The frame is located on the legs, their number depends on the length of the frame. The design of the pedestals is such that they can store the tools necessary for the machine's operation.

Headstock assembly

• The parts located in the headstock serve to support and rotate the part during machining. Here are the nodes that regulate the speed of rotation of the part:
• Spindle
• 2 bearings
• Pulley
• Gearbox

• The main part of the headstock in the lathe body is the spindle. On the right side, facing the tailstock, there is a thread. To it are attached cartridges that hold the workpiece. The spindle itself is mounted on two bearings. The accuracy of the work performed on the machine depends on the state of the spindle.

Spindle

• Spindle-shaft with right and left rotation, equipped with a device for fixing the workpiece in the chuck of the lathes

Feeder

• The feed mechanism informs the support about required direction of travel. It is controlled by means of external handles. In addition to directions, it is possible to change the amplitude of motion with the help of replaceable gears.

• In the scheme of machines with automatic feed, there are running screws and a roller. When performing work with high accuracy is used screw. In other cases, the roller .

Carriage

• The upper part of the support is the place where the cutting tools and other turning tools are fixed to handle various parts. Due to mobility of the support, the cutter moves smoothly in the direction necessary for machining the workpiece, from the place where the support with the cutter was positioned at the beginning of work.

Apron

• Like the headstock, it hides behind its body the components necessary for driving the mechanisms of the machine, connecting the caliper with the stand and the screw. Handles for controlling the mechanisms of the apron are placed on the body, which makes it easier to adjust the stroke of the сarriage.

Tailstock assembly

• It is used to secure the parts to the spindle. It consists of 2 parts: the lower part - the main plate and the upper one, holding the spindle.

• The movable upper part moves along the bottom perpendicular to the horizontal axis of the machine. This is necessary to rotate the conical parts. The shaft passes through the wall of the headstock, it can be rotated by means of a lever on the rear panel of the machine. The front headstock is fixed to the frame using conventional bolts.