Assessment criteria 1.1
Horizontal milling machine
Horizontal milling is a cutting process in which rotary cutters are used to cut, bore and shape a variety of materials. There are CNC milling machine, where the rotary cutter is controlled by a computer to attain more accuracy.
In a vertical milling machine the horizontal movements of the tool are controlled by the X and Y axis, while the vertical movement is controlled by the z-axis. Here the spindle is fixed and the bed moves either horizontally or vertically. http://blog.mmi-direct.com/used-cnc-milling-machine
Whereas a horizontal milling machine will have additional axis. It is called as W and B axis. The w-axis is for the diagonal movement of the Z-axis, while the B-axis allows for the rotation of the
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Assessment criteria 1.2
Lathe machine
Lathe wheel driven with the use of a hand-wheel is not but a manual lathe machine. Here with the help of the hand wheel, various carriages are moved to its required position manually. Mostly lathes have four hand-wheels-
- Carriage hand wheel for moving the saddle.
- Cross slide hand wheel for transverse movement of the tool post.
- Compound hand wheel for moving the compound slide that can be set at an angle for taper cutting.
- Tail stock hand wheel for moving the quill forward or backward for centring. http://www.metalartspress.com/sites/default/files/article-images/Inner-Workings-of-Lathes----Pix-3.jpg
Lathe wheel driven with the help of servo motor can be seen on computer aided lathe machines i.e. CNC lathe machines. Here a servo is used as the spindle motor. The motor can be given to move in a linear or rotary motion. This allows us to control the speed and angular position of the tool.
The Wankel rotary engine named after the designer, Felix Wankel, was engineered in the early 1930’s. The rotary engine was unlike the conventional four stroke internal combustion engines and lacked the need for pistons, valves and camshafts. With only three moving parts involved in the design, this engine showed great promise in reliability and efficiency. The first Wankel rotary model was shown in 1960, not as an engine, but as a pump drive. Instead of the very complicated system involved in a conventional reciprocating piston engine, the wankel engine incorporated triangular “rotors” (see figure 1) that rotate within an epitrochoidal chamber around an eccentric shaft. Not only is this engine much more simple (only 3 moving parts rather
To build a ramp or install a chair lift for a person who becomes disabled (to allow him or her to continue living at home).
...t; the W axis lets go of the chatter killer plug and goes to its home position. Different machining processes can be started, like threading, turning, chamfering and boring of the pipe. Once the thread is cut on the pipe, it is thoroughly inspected. The American Petroleum Institute commonly referred to as API has been developing technical standards for the industry since 1924. These technical standards are uncontroversial, ensure safety, safeguard health and protect the environment. Once the thread has been inspected and passed, a thread protector is screwed on that covers the entire thread are on both internal and external threads. After the other end of the pipe goes through the same process, the pipe is ready to be used in oil drilling applications.
Cylinder mowers: These have rotating blades set on a barrel with a fixed blade at the base of the machine. As you move forward, the grass gets trapped in the rotating blades and is cut with the base blade. The advantage of this design is that you get more precise and finer cuts which are perfect for short grass blades and lawns that are frequently
Define and explain the 6 standard simple machines (Wheel/Axle, Screw, Inclined Plane, Lever, Pulley (or Block and Tackle), and Wedge) Throughout history people have made devices to make work easier. The six simple machines are the most notable advances. These simple machines are the wheel and axle, the lever, the inclined plane, the pulley, the screw, and the wedge. These machines make work easier and more efficient.
It offers convenience, consistency, precision and control. One distinction is that the router is mounted below the table so that the bit of the router sticks upward and protrudes out from the top of the table. You just need to move the wood the bit around instead of moving the router. After understanding the different types of routers, you need to go through the three steps which will help you in getting the appropriate router for your woodworking.
Shank – It is main body of tool and it is used to gripped in tool holder.
There are different kinds of chips produced from machine tools and we should know what chips are produced so as to get the best use out of our machine by selecting appropriate components for the same.
is connected to a shaft, which spins a disc. The disc has holes in it
The basic trimmer works by the engine driving a multi-bearing supported hardened steel shaft housed in an aluminium tube through a centrifugal clutch this shaft is connected to a “head” that holds a nylon line that spun at high revolutions per minute (RPM). This nylon line then cuts the grass by hitting the blades of grass at high speed, this cause the grass to be severed at the point of impact. Thus trimming the grass.
Lizotte, Ryan. "Selecting, Installing, and Maintaining a Through-arm Robotic GMAW Gun." - TheFabricator.com. N.p., 10 Sept. 2012. Web. 08 May 2014.
It is a tool that has a serrated blade at the end of a wooden handle.
A Tractor can be difined as a prime mover vehicle with strong traction power which its main function for this project is to be used to tow trailers . it includes a fifth wheel coupling for attaching a trailer . Tractor is usually shorter compared to a truck. having the necessity of moving the all struture from one place for one place to another is imperative to have one .
The original tools used by a manufacturer consisted of a hammer and a rounded chisel to make the grooves. So, it was decided that a handheld pneumatic pistol type tool which suitable for the application based on these same elements. This would essentially allow both hands to use one tool.
The first industrial robot, built in 1961, was a mechanical arm used to load presses. After the development of the computer and the CNC (Computer Numerical Control) in the 1970?s, the world saw great advances in the development of robotic control and the quality of robot manufacturing. As a result, there has been acceptance of the industrial robot world wide, improving the productivity and quality standards of industry (Hodges 3-5).