In this given article we will briefly discuss about the topic of “Milling Machine Parts”. The milling machine parts are very useful and uses widely in the work of the production engineering.
In every milling machine tool in generally contain eleven parts.The parts which are carried by the milling machine tool is
A CNC milling machine automated machine tool and CAD software is uses in it.
Image Credit – Wikimedia Commons
Milling machine parts and their explanations:
Base:
The base is the part which is placed at the bottom of the milling machine tool. The whole parts of the machine tool are situated in the base.
The base is the foundation of the milling machine tool. The base should be enough rigid and the strength should be enough thus it could hold the whole machine tool.
Material used to make:
The body of the base made with cast iron.
Working Purpose:
1. To hold properly the machine parts of the milling machine tool.
2. Storage of the cutting fluid
3. To absorb the surroundings shocks.
Table:
Table is situated at the saddle’s top portion. The shape of the table is rectangular.
The table is control by the electric power in milling machine. But in common milling machine the milling machine is controlled by both man power and electric power and when the table is controlled by the manpower the hand crank is engaged longitudinally and when the table of the machine tool is controlled by the electric power that time control lever is engaged longitudinally.
Material used to make:
Table of the machine tool is made with cast iron.
Working Purpose:
1. The main purpose of the table is to grip the work piece and the work tool.
2. T slots are also placed in the table of the milling machine tool which are used to hold the work piece and work tool such as jigs and fixtures.
Arbor support:
In the milling machine the tool is support the arbor’s end portion with arbor support’s axle. The support of the arbor is pitch with the help of bearing.
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In the milling machine tool general arbor support is categorized in two types. The one type is smaller diameter bearing which containing the hole diameter maximum up to 1 inch and the another one is bigger diameter bearing which containing the hole diameter is 5.75 inch.
Working Purpose:
1. The oil reservoir is placed in the arbor supports. Lubricate which is comes from the oil reservoir uses in the surface of the bearings.
2. In overhanging arm’s any places the arbor support can be clamped.
Knee:
The shape of the knee in the milling machine tool is almost looks like a human’s knee. The movement of the knee is vertically upon the face of the column. The knee can be moved upward and downward in the directions both.
Material used to make:
The knee of the milling machine tool is made with the help of grey cast iron.
Working Purpose:
1. Help to hold the feed mechanism which is situated in the table of the milling machine tool.
2. Also helps to grip the saddle.
3. By the help of the knee we could easily adjust the height of the column which is attached with the elevating screw.
Spindle:
The spindle is a machine tool which is act as an intermediate between the knee and table of the milling machine tool. The spindle is placed in the upper portion of the column.
It is actually a shaft which is work in the rotating motion. The spindle can be moved by both manpower and the electric power. The power of the machine tool such as gears, belt and clutches is received by the spindle.
Working Purpose:
1. To horizontally moves the workpiece.
2. The shaft of the spindle is act like as a supporter and positioned for the tool devices.
3. Support the column.
4. The spindle’s face is situated in the tapered machine of the table. The taper of the internal position is situated in the spindle’s face and only permits with arbor or the cutter which is in tapered.
Column:
The column of the milling machine tool is placed the vertical position of the base. The column is one of the most important part of the milling machine tool which carrying all the driving mechanism and also carry the motor.
In the column the v belt is used. The v belt is usually connected the motor and the driving mechanism. The driving mechanism is mainly used to control the speed. It is shaped like a box and all driving mechanisms are situated on it.
Material used to make:
Cast iron is used to make the column of the milling machine tool.
Working Purpose:
1. To hold the driving mechanism and motor.
Ram:
Ram can be defined as if the overhanging arm is present in the milling machine. The ram’s one ending part is attached with the column and other ending part is attached with the head of the milling machine tool.
By the help of the hand lever ram easily can be moved.
Motor:
The power is generated of the milling machine by the motor.
Head:
As the human body’s head the milling machine head is also situated at the top. The controlling mechanism is totally handle bf the milling head. The spindle and driven motor also placed in the head.
Machine tool:
The machine tool means the spindle carried the all the components by this the excess amount of material is removed to achieve the desired part.
Machine interface:
The meaning of the machine interface is the operator of the machine components used as machine program of the computer numerical control, load and initiate.
Saddle:
The saddle is placed in the knee and worked as a supporter of a table of the milling machine tool. The dovetail which is placed paralleled to the spindle’s axis. The saddle is present in the horizontal milling machine tool.
Working Purpose:
1. Guide the table with the help of the top portion of the saddle.
Front brace:
Front brace actually an additional support tool. By the help of the front brace the knee and overhanging arm get extra support.
Arbor:
The arbor of the milling machine meaning into the spindle when the component of the shaft is insert into the horizontal milling machine where tools of machine can be mounted. The component of the milling machine is in various sizes and diameters.
The arbor is present all most every milling machine that could be in end milling, normal milling machine, slitting saw milling cutter, screw, shell cutter arbors and milling cutter arbors.
Working Purpose:
1. Worked as the supporter of the cutters which are used in the milling machining tool.
2. Work tool can be easily hold and move by the arbor.
Milling machine:
In a production industry there a lots of machine and machine tools are present to do a wide range of operation in the work piece among them milling machine is one of the machine tool. By the help of the machine tool a wide range of cutting can be done in the work piece. A lots of operations which are in general very complicated to do on a work piece but with the help of the milling machine tool we can provide this complicated operation too. The operation we could easily do by the machine tool is,
- Straddle milling
- Indexing
- End milling
- Gang milling
- Plain milling
- Face milling
- Side milling
- Saw milling
- Form milling
- Angular milling or bevel milling
- Spiral milling or helical milling
In industrial area the milling machine tool mainly used to produce the surfaces .The surfaces which are mainly in form of flat profiled. In other way the slots are made with the help of the tooth cutter which are revolving in multiple.
In the production engineering field there are different types of milling machine tools are present. The types of milling machine which are present in different form is named in the below section,
- Plain milling machine
- Knee milling machine
- Column milling machine
- Hand milling machine
Image Credit – Wikimedia Commons
- Vertical milling machine
Image Credit – Wikimedia Commons
- Universal milling machine
Image Credit – Wikimedia Commons
- Plano milling machine
- Pantograph milling machine
- Profiling milling machine
- Planetary milling machine
Frequent Asked Questions:
Question – What is Jigs?
Solution: Jigs can be defined as the device which is helps to grip and locate workpiece of the milling machine tool and control the cutting tool that could be one or more than one.
Image Credit – Wikipedia
The jigs are also used in the other operations like drilling, tapering or reaming for griping as well as guiding the work tool.
Question: What is fixture?
Fixtures can be defined as the device which is helps to locating and griping the workpiece in the manufacturing operation’s inspection.
Image Credit – Wikipedia
The fixtures are also used in the other operations like grinding, turning, for griping as well as guiding the workpiece.
Hi..I am Indrani Banerjee. I completed my bachelor’s degree in mechanical engineering. I am an enthusiastic person and I am a person who is positive about every aspect of life. I like to read Books and listen to music.
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