The constant development in technology and the introduction of modern machines; helps us to produce better products, optimize costs and increase productivity. All industrial units utilize a variety of machine tools; that typically include the milling machine. It is one of the most important workshop machineries. It is a highly resourceful machine tool that is utilized for machining solid objects.
It can execute numerous simple and complex functions such as cutting, drilling, planing, diesinking, contouring etc. A cutting liquid is frequently passed on the cutting spot in order to cool and lubricate the cut; as well as to wash away the residue.
It moves the work radially against the revolving milling cutter; that cuts on its tip and also on the sides. The cutter and work piece motion is accurately controlled, using analogous technology or through precision ground slides and lead screws. It can be either manually operated or mechanically automated. The latest type of digitally automated machines also includes the CNC.
There are mainly two types : the horizontal milling and the vertical milling. They are categorized basically on the orientation of the main spindle; and are available in various dimensions from small bench mounted tools up to large room sized machinery.
The spindle axis is vertically oriented in a vertical milling machine. The milling cutters are usually held in the spindle and they revolve on its axis. The spindle may be extended in order to facilitate propelled cuts and drilling. However, this can also be achieved by lowering or raising the table.
It is also referred as the vertical mill. The bed and the turret milling machine are the two major types of vertical. The turret mill can perform the cutting operation in the vertical (Z) direction; by either lowering or raising the quill, and by moving the knee.
A turret milling machine generally has a stationary spindle and a movable table that moves in a parallel as well as perpendicular direction to the spindle axis in order to carry out the cutting function. It also have a quill that permits the milling cutter to be lowered and raised just like a drilling machine.
These are also known as Bridgeport milling machine. They are robustly designed, extremely versatile and highly efficient. However, only the small sized turret mills are practically functional. This is due to the fact, that for the larger sized turret milling machine; moving the knee up and down is relatively harder. Moreover it also not easy to reach the quill feed handle.
The vertical milling machines supplied by us are reasonably priced and are hence widely utilized for a variety of industrial applications. These vertical mills are appropriate for die sinking process; that involves machining a mold into a block of metal.
The turret milling machine range includes the box way and dovetail type. Several models are available in various dimensions at competitive rates.
The lathe is a multipurpose machine tool; that rapidly rotates the work piece along its axis to perform various tasks like cutting, shaping, drilling, turning, sanding etc.; in order to create a symmetrical object. Nowadays, the latest manufacturing machines use computers to automate numerous manual functions in several industrial segments; including lathe machine operations.
What is CNC Lathe Machine?
Apart from the earliest wooden lathes and metal lathes; a broad array of lathe machines are now available in the market such as the CNC lathe machine. CNC is the short form of Computer Numerical Control. CNC is now applied in almost all types of manufacturing processes. CNC lathes are basically controlled by a computer. The related manufacturing procedure is pre planned by the computer. Once the lathe machine is preset, it can continuously function automatically; followed by occasional supervision of a machine operator.
Importance & Benefits of CNC Lathe Machine
These CNC lathe machines have largely replaced the older versions of lathes in the production and machining department; since they are simple to operate, provide extreme accuracy and deliver top grade products. CNC lathes offer many benefits such as high powered axis drives, feedback control for monitoring and maintaining the tool position; and even constant high speed motion of complex machines. After providing all the functional parameters, a machine operation can be easily set up; thus eliminating the repetitive manual adjustments.
Components of CNC Lathe Machine
CNC lathes are programmed to quickly and precisely cut the work piece using tools and drills. The same result may otherwise be difficult or impossible, while using the conventional lathes. This CNC machine also incorporate tool holders and coolant pumps to reduce deterioration. CNC lathe machines have the ability to cut curved contours without using special shaping tools. This is possible due to the computer programmed and controlled speed of the two motion axes and the spindle simultaneously.
Types of CNC Lathe Machine
The CNC lathe machine range includes; flat bed CNC lathe machine, heavy duty lathe, heavy duty flat bed CNC lathe machine, slant bed CNC lathe machine, imported CNC lathe machine, Swiss style CNC lathe machine etc.
Working of CNC Lathe Machine
A CNC lathe machine is controlled electronically through a computer generated menu interface. The computer program can be displayed and suitably modified on the machine, along with a virtual view of the related procedure. The CNC lathe operator should be high skilled and properly trained to perform the manufacturing process. After pre setting a CNC lathe machine, it can be operated and supervised simultaneously.
A CNC lathe machine must be provided the relevant instructions to produce a new or different shaped object. This is done by a computer programmer, who prepares a set of machining instructions related to that process. It is then translates into a computer aided-automated manufacturing (CAM) program; for the particular machine to understand and operate accordingly. Then a CNC lathe operator in a machine shop or tool room will download the CAM program, set up the lathe; and then start the machine and intermittently monitor it until the process is completed.
These days CNC lathe machine manufacturers provide a wide range of CNC lathe machines at affordable rates.
The drilling machine is one of the most vital tools. It has transformed a lot of complex manufacturing processes into very simple tasks. It is an important tool that is used in several industrial and commercial operations; such as construction, woodworking, metalworking etc.
It is also commonly known as a drill press. It is basically used for drilling holes of various sizes as per required depths on any surface area. Moreover it is utilized for tapping, reaming, counter boring, countersinking, spot facing etc.
There are several categories of it such as the upright, radial and special purpose drilling tools. Even though all these are execute the fundamental drilling task; there are certain specific objectives and additional features that can be done more precisely and easily.
A radial drilling machine has a drilling head, which is mounted to slide along a radial arm; and can be rotated, raised or lowered, on a vertical mast to adjust the position of the drill above the work piece. It is used for numerous functions that include drilling, reaming, boring, tapping, counter boring, lapping, screwing and spot facing. These are capable of drilling a wide range of materials made from cast iron, steel, plastic etc.
The latest range includes V belt driven radial drill and all geared radial drill; as well as the imported radial drill machines. These are normally categorized on the basis of the arm length and the width of the drill bit swing.
The plain radial drilling always has a vertical spindle that may not move over the work piece. In the half universal drilling the spindle can be swung in one place over the work piece. A full universal drilling machine offers a great amount of flexibility. It has the capability to move and swing in any plane and over any angle; without moving the work piece.
It is a highly versatile workshop tool. The drilling spindle is attached to the end of an arm. Hence it can hold large sized work pieces, depending on the length of the arm. Whereas in the other types of drilling machines; only smaller work pieces can be placed under the drill.
Further, the arms of these radial drilling can be moved and swung in various angles to reach the exact drilling locations. The extra ability to move the arm extensively; permits even larger work pieces to be placed quite easily. It can also be used as a tool for placing fasteners. It can cut through the material and at the same time fasten two pieces of materials together with some type of fastener.
Nowadays many radial drilling manufacturers supply sturdy, accurate and long lasting radial drill machines in the local and global markets at competitive rates.
Nowadays, the tool room work and workshop machine activities; are done by repairers or through suitable lathe tools. A lathe is a tool utilized to perform various functions like turning, cutting, drilling, grooving, knurling, parting, threading etc. They are used to produce accurate products made from metal, plastic, wood etc. The basic lathe machine operations are as follows:-
Turning is an essential and important lathe operation. It is used to create circular objects and for reducing the diameter of the work. Taper turning refers to the process where the tool narrowly cuts the job at a specific angle. Knurling is done using a knurling tool; it has two slashed lined wheels that are pressed against the rotating work piece to produce a knurled object.
The drilling operation uses a drilling tool which is held in the tail stock and fed into the work by using a handle on tailstock. Threading is a precise operation, where the tool is fed into the job at a constant speed. This is done by attaching a carriage assembly with lead screws that are connected to the driving mechanism through gear trains. Two types of threading are external and internal threading.
Grooving is done before external threading by feeding the grooving tool perpendicular to the rotating work piece. Parting is done for cutting a work into smaller parts. Chamfering refers to slitting or cutting the edges of the object.
The major parts of a lathe machine are bed, headstock, saddle, tailstock, top slide; apron, cross slide, lead screw, countershaft, tool rest, chuck and gears. The bed is the base of a lathe, the chuck holds and spins the work piece; whereas the apron grips the gears, and the headstock allows the spindle to rotate at variable speeds. The tailstock holds the end of the work; and the carriage houses the cross slide, top slide and saddle.
Many types of lathes are available including the wood lathe. Here the cutting tool is operated manually by skilled workers to precisely form smooth curves and complex shapes on the work piece. The spindle is normally driven by a belt connected to the motor, and the speed can be varied manually. Lathe tools are held manually against the work, with the help of an adjustable tool rest; that is clamped to the base at a suitable position.
Engine lathes are machines with a longitudinal base, where the headstock and tailstock are mounted. It has an advanced spindle drive that runs at variable speeds; the selectable gears help to operate the machine at higher speeds. The lathe cutting tools are moved against the work using hand wheels; or automatically using a lead screw that is power driven by gears in the headstock. The carriage moves back and forth on the bed for longitudinal turning. The cross slide and compound rest are mounted above the carriage to enable cross and angular cutting.
Finally during any lathe machining operation, always take necessary precautions; even if you are an expert, or are handling an important process.
The invention of machines has resulted in saving our time, money and energy. Additionally it even helps us to produce better quality goods. The lathe is one of the oldest and most important machine tools. The earliest types of lathes were manually operated and included hand held tools with manual feed for the work piece. However nowadays these lathe machines are power driven, highly versatile and computer controlled.
What is Conventional Lathe Machine?
The conventional lathe machine is a standard lathe that is used for holding and turning various types of materials such as metal, wood, plastic etc. against a cutting tool in order to produce a cylindrical object. Besides this it can even perform many other functions like grinding, boring, threading, polishing, reaming, drilling etc.
Types of Lathe Machines
Many types of lathe machines are available; with exclusive features to perform a variety of machining operations. The wood lathe or a woodworking machinery lathe is the simplest and oldest type of lathe; which is specially designed for turning wood. Wood lathes are used for wood working and to create several wooden objects such as wooden furniture, sports goods etc.
Types of Metal Lathe Machines
Metal lathes are used to remove material parts from a metal item using an integrated cutting tool. Metal lathes are mainly utilized to cut, grind, drill, bore and ream harder and heavier materials like metal. However, nowadays they are even used for cutting various types of materials including plastic and other composite materials.
There are several kinds of metal lathes, such as a center lathe, a capstan lathe, a turret lathe etc. Engine lathes or center lathes or bench lathes are basically metal turning machines. This is a traditional lathe machine with an automatic feed for the cutting tool. They come in various sizes and are capable to work with almost all types of materials.
It is also known as center lathe, where the work piece remains fixed and the dual heads move towards the work piece and make a central drill hole from each end. Moreover, mini lathes and micro lathes are just small sized lathes as compared to the typical general purpose engine lathes.
Advantages of Tool Room Lathe
The tool room lathe is a medium sized engine lathe that is specially used for very accurate work and for high quality machining. A tool room lathe can deliver better accuracy and precision as compared to an engine lathe. These machines are commonly used in tool rooms and die shops; as well as for manufacturing precision machine parts and accurate fixtures. While producing tool room lathes, the main focus is towards the spindle accuracy, smooth operation and precise alignment of the carriage and cross slide.
Uses of Turret Lathes and Capstan Lathes
Turret lathes and capstan lathes are mostly utilized in the production machine shops where numerous back to back processes are performed on a single work piece. This is due to the fact that removing a work piece from one machine and re-holding it in another will affect machining accuracy and work alignment; and is also expensive and time consuming.
Today, several conventional lathe machine manufacturers supply a wide range of lathe machines at competitive prices.