Evolution of Machine Tools – CNC Machine Tools
|Date Added: June 20, 2011 01:03:05 AM|
|Author: John Machine|
|Category: News & Media: Technology|
We would like to discuss about the modern machine tools available in markets and the proper utilization of the tools in various industry sections and also about their historical evolution. The definition of a machine tool accordingly in the dictionary is as a powered machine used for cutting or shaping or finishing metals or other materials. This definition can actually be applied to a wide variety of tools and in different industry sectors such as a broach, drill, gear shaper, hobbling machine, lathe, milling machine, shaper, and grinder to name a few. Obviously the definition really doesn’t describe the usefulness of these types of tools. So we'll try to do just that in this article. Most machine tools, also by definition, are tools that are tools that use a power source. In another words the modern day CNC tools not operated manually. But there are some tools that are considered machine tools that are operated by hand. Previously in our consideration considered machine tools, were actually made for the purpose of making other tools. These tools removed the human element from the process of stamping these tools by hand. Instead they were now stamped by machines. Let’s go for some historic stuff for clearing understanding of the invention. The first lathe machine tools were invented in 1751 by Jacques de Vaucanson.
This took the tool out of the hands of the operator. In modern days Machine tools can actually be powered by a number of sources. Aside from human and animal power, the energy for these tools can be captured from waterwheels and steam engines, in the early days, and finally electricity today. The Industrial Revolution had a huge impact on the progress made with machine tools. Machine tools can be manually operated or automatically controlled it can be of manual control or can be controlled by computing facilities. The very early machine tools used flywheels to stabilize their motion. They also had complex systems of gears and levers to control the machine and whatever piece it was that it was working on. After the completion of World War II a new advanced machine was made called the numerical control machine. This machine used a series of numbers punched on paper tape or punch cards that controlled their motion. After the introduction of the concept of numerically controlled machine tools there has been a considerable advances in the development of the more precise and automatic machine tools. In the 1960s, computers were then added to the function of making these machines work. These computers gave more flexibility to the process. These machines became known as computer numerical control (CNC) machines and they could repeat the same set of instructions over and over similar to an assembly line.
The movement in horizontal and vertical coordinates and the overall 5 dimensional structures of the CNC machines have adapted every modern technological improvement and evolved itself to a better product for the manufacturing sector.
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