They are of permanent magnet type or electrically operated. In Lathe, it does not have widespread use. Feed rod is a power transmission mechanism used for precise linear movement of the carriage along the longitudinal axis of the lathe.
In some lathe machines instead of feed rod lead screws are used. The lead screw is used mostly in the case when the threading operation is to be performed on a lathe. As we know for threading operation requires rotational movement of the job workpiece and the linear movement of the tool tool post. So rotation of the job is obtained by the chuck and the desired linear motion of the tool-post as the lead screw drives the saddle when it is engaged is provided with the help of a lead screw.
A Lathe works on the principle of rotating the workpiece and a fixed cutting tool. The workpiece is held between two rigid and strong supports called a center or in a chuck or in faceplate which revolves. Lathe removes the undesired material from a rotating workpiece in the form of chips with the help of a tool that is transverse across the work and can be fed deep in the work. The main function of the lathe is to remove the metal from a job to give it the required shape and size.
The normal cutting operations are performed with the cutting tool fed either parallel or at right angles to the axis of the work. The cutting tool can be fed at an angle relative to the axis of the work for machining tapers and angles. A variety of products can be made from the lathe machine and that are Nuts, bolts, piston, ram, pump part, electric motor parts, sleeves, Aircraft parts, gun barrels, candlesticks, train parts, cue sticks, wooden bowls, baseball bat, crankshaft and many more things.
The engine lathe is the most important tool in the Lathe family and by far the most widely used type of Lathe machine. Its name is derived from the fact that early machine tools were driven by separate Engines or central engines with overhead belts and shafts. The operations which can be performed by the Engine Lathe machine are Turning, facing, grooving, knurling, threading, and many more operations that can be performed by it.
Engine lathe consists of headstock, Tailstock, bed, saddle, carriage and other parts. It is a production machine that is used for the production of products on a large scale. It basically handles heavy-duty workpieces. The distinguishing feature of this type of lathe is that the Tailstock is replaced by hexagonal Turret.
In this, several tools are set up on a revolving turret to facilitate in performing a large number of operations on a job with minimum wastage of time. The turret usually accommodates 6 tools for different operations like drilling, countersinking, reaming, tapping, etc, which can be brought into successively working positions by indexing the turret. Turret lathe is basically used for repetitive batch production. It is similar to the Turret lathe. Used for the mass production of the light-duty workpiece.
It incorporates a capstan slide which moves on the auxiliary slide and can be clamped in any position. This is best suited for the production of the small parts because of its lightweight and short stroke of capstan slide. This is the simplest form of the lathe and consists of a simple Headstock, tailstock, and a tool post.
Having no gearbox, lead screw, and carriage. Very high speed of the headstock spindle. The speed of the spindle ranges from to rpm. Tools are hand-operated. Cone-pulley is the only source provided for speed variation of the spindle. Speed Lathes are intensively used in woodturning , metal spinning, and polishing operation. Tool Room lathe is a modern engine lathe that is equipped with all the necessary accessories for the accurate tool room work.
It is best suited for the production of small tools, dies, gauges, etc. It is a geared head driven machine with considerable rage in spindle speed and feeds. Its speed can range from very low to a very high speed of up to rpm. Bench Lathe machine is a type of small lathe machine which has all the parts of the engine Lathe and speed lathe.
Special purpose lathe machine is used for performing the specific special tasks which cannot be performed by an ordinary lathe. Some type of special-purpose Lathe are as follow:. In gap bed lathe, a gap is provided over the bed near the headstock to handle the job having flanges or some other protruding parts. Mostly a removable portion is provided in the bed so that when it is not required it can be inserted. Friday, 29 April Automatic Cooling system in Lathe.
The project is to introduce automatic cooling unit instead of manual cooling process in lathe through design and fabricating the reservoir of the unit. Automatic cooling unit is a system typically delivers a controlled amount of coolant to specific locations on a machine while the machine is operating, at specific times from a central location. The temperature sensor or thermistor is placed near to the tool or work piece, as a result the thermistor senses the temperature from the tool -work piece interface and sends an electrical signal to the amplifier.
The electrical signal is amplified by using amplifier, then this signal is send to the comparator then the comparator compares both input and reference signal. If the input signal is greater than the reference signal then the relay gets activated automatically to control the temperature to a certain level.
So the coolant is pumped from the reservoir to the tool- work piece interface. Similarly when the temperature decreases below the reference value the control unit deactivates the pump by using the relay.
The process will continue according to the increase and decrease of the temperature. The long working schedule in the lathe leads to increase the temperature at the tool as well as the work piece. This high temperature will affect the tool life and also will affect the surface finish of the work. So it is very important to introduce automatic coolant unit to the lathe instead of manual cooling, which will be very useful in the later manufacturing industry.
Nozzles can be clamped in to place or held tight by magnets. Coolant and compressed air are brought to the nozzle separately through a coaxial line, which eliminates tangling of unnecessary lines and increases workspace capacity. To help our customers get started we offer three starter kits so you know you can start using Kool Mist to safely reduce heat during the machining process. Toggle navigation. Fabrication of cooling tower for boiler Fabrication of power press Fabrication of stem power generation Renewable energy by solar tracking system Fabrication of peddling water pump in bi-cycle Fabrication of rotary milling fixture Fabrication of coolant filtration system for CNC Lathe Fabrication of spring end grinding machine Fabrication of pneumatic grinding machine Fabrication of hydraulic grease gun Fabrication of air cooler cum air heater Fabrication of keyway attachment for lathe Fabrication of shot blasting machine for cleaning Cast iron component Fabrication of lathe coolant pump with fitting Arrangement Fabrication of welding slag cleaning machine.
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