What working principle is lathe made of?

As early as the ancient Egyptian era, people have invented the technology of turning wood with a tool as it rotates around its center axis. At first, people were using 2 standing logs as a support to hold up the wood to be turned, using the elasticity of the branches to roll the rope onto the wood, pulling the rope to rotate the wood and turning it with a tool.

This ancient method gradually evolved, developed in the pulley around two or three turns of the rope, the rope on the elastic rod bent into a bow, back and forth to push and pull the bow to make the processing of the object to rotate so as to carry out turning, which is the "bow lathe".

In the Middle Ages, some people designed a foot pedal to rotate the crankshaft and drive the flywheel, and then drive to the spindle to make it rotate the "pedal lathe". 16th century, there is a French designer called Besson designed a screw bar to make the tool sliding screw turning lathe, but, unfortunately, this lathe did not Unfortunately, this lathe was not popularized.

In the 18th century, a lathe was designed to rotate a crankshaft with a foot pedal and a connecting rod to store the rotational kinetic energy on a flywheel, and evolved from rotating the workpiece directly to rotating the headstock, which was a chuck for holding the workpiece.

Most notable in the story of the invention of the lathe is an Englishman named Mozley, for his epochal invention of the toolholder lathe in 1797, which came with precision leadscrews and interchangeable gears.

Mozley was born in 1771, and at the age of 18, he was the right-hand man to the inventor Brammer. Brammer is said to have been a farmer, and at the age of 16 was forced to change to the less mobile carpentry after an accident that left him with a crippled right ankle. His first invention was the flush toilet of 1778, and Mozley began to help Brammer design hydraulic presses and other machinery until the age of 26, when he left Brammer, after Brammer had rudely refused Moritz's request to increase his wages to more than 30 shillings a week.

The very year Mozley left Brammer, he made the first threading lathe, an all-metal lathe capable of moving a tool holder and tailstock along 2 parallel guide rails. The guide rails had a triangular guiding surface that drove a screw to move the tool holder laterally as the spindle rotated. This is a modern lathe has the main mechanism, with this lathe can turn any pitch of precision metal screws.

Three years later, Mozley built an even better lathe in his own workshop, with interchangeable gears. Soon, even larger lathes were introduced, contributing to the invention of the steam engine and other machinery.

In the 19th century, thanks to the invention of high-speed tool steel and the use of electric motors, the lathe continued to improve, and finally reached the modern level of high speed and high precision.