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Tracing the development history of machine tools

Jun 27, 2020

As the most perfect representative of the European Renaissance, Da Vinci has always been best known for his paintings. In fact, his old man also works as an inventor and scientist. The manuscripts of various designs are more than 7000 pages, and more than 5,000 pages exist. The topics covered include Biological manuscripts, engineering design manuscripts, mechanical manuscripts, etc. A large number of Da Vinci's design manuscripts can be used in production, transportation and military, and have a great relationship with the machine tool. This is also the lathe design in the Da Vinci manuscript.

_720w_meitu_4_meitu_1_meitu_1Da Vinci lathe design draft Let's take a look at the restoration model and use the stone disc to roll to drive the spindle to roll, which has made great progress compared to the prototype of the lathe in the same period. However, some people really use Da Vinci machine tools for wood processing, lamenting that genius inventions can always become a reality.

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The reason why humans evolved from apes depends on our hands, but we can’t rely on hands alone, so we must have tools to assist. Smart human ancestors, in order to use more convenient tools for processing, the tree lathe, the earliest prototype of the machine tool, was born more than 2,000 years ago. The tree lathe, as its name suggests, is still relatively rough as a prototype. When operating, use your feet to step on the ferrule under the rope, use the toughness of the branch to drive the workpiece to rotate, use stone or shells as a tool, and cut the tool along the horizontal bar to cut the object。

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In the 13th century, prototypes of machine tools were also developed. At this time, a "pedal lathe" that used a pedal to rotate the crankshaft and drive the flywheel, and then transmitted to the main shaft to rotate it was also called an elastic rod bar lathe, except that the tool was true With metal, the operating principle is exactly the same as before.

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Speaking of Europe, let's talk about China. In the same period, the Ming Dynasty published a wonderful book called "Tiangong Kaiwu", which recorded the various techniques of the Middle Ages and before, and I was even more amazed by "the wisdom of the ancients". The structure of the grinder is also recorded in this book. Here, a principle similar to that of the European foot-operated machine tool is used here. The metal disk is rotated by the foot-operated method, and sand and water are used to process jade.

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The grinding machine structure in "Tiangong Kaiwu" uses jade to cut jade。

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Let’s take a look at Europe again. A French man named Besson designed a lathe for turning screws through a screw rod. The tool is finally no longer fixed in one position. According to the introduction, there is no I don’t know why.

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The design draft of Besson lathe has been a bit like a modern machine tool. At this stage, the prototype of the machine tool has been introduced. It can be seen that although the prototype is constantly developing, the source of power has not been separated from the original tree lathe. The continuous power is really It's a big problem. After all, no matter how powerful we are, we still get tired.

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