Milling machine refers to a machine tool that mainly uses a milling cutter to machine various surfaces on a workpiece. Usually, the rotary motion of the milling cutter is the main motion, and the movement of the workpiece (and) milling cutter is the feed motion. It can process planes, grooves, and various surfaces, gears, and so on. A milling machine is a machine that mills a workpiece with a milling cutter. In addition to milling planes, grooves, gears, threads and spline shafts, milling machines can also process more complex profiles with higher efficiency than planers and are widely used in the mechanical manufacturing and repair departments.
In the 19th century, the British invented the trampoline and planer for the needs of the industrial revolution such as steam engines, and the Americans devoted themselves to the invention of milling machines in order to produce a large number of weapons. A milling machine is a machine with a different shape of milling cutter that cuts specially shaped workpieces such as spiral grooves, gear shapes, and more.
As early as 1664, the British scientist Hooker used a rotating circular cutter to create a machine for cutting, which was considered the original milling machine, but the society did not respond enthusiastically. In the 1940s, Pratt designed the so-called Lincoln Milling Machine. Of course, the real establishment of the position of milling machine in machine manufacturing is American Whitney.
3.1 The first ordinary milling machine (Whitney, 1818) In 1818, Whitney built the world's first ordinary milling machine, but the patent for the milling machine was the British Bodmer (the gantry with the knife feeder) The inventor of the planer) first won the first prize in 1839. Because the cost of milling machines was too high, there were not many people at the time.
3.2 The first universal milling machine (Brown, 1862) was silenced for a while and then became active in the United States. In contrast, Whitney and Pratt can only be said to have made a groundbreaking work for the invention of the milling machine. The success of the invention of a milling machine that can be applied to various operations of the factory should belong to American engineer Joseph Brown.
In 1862, Brown in the United States produced the world's first universal milling machine, which is an epoch-making innovation in the provision of universal indexing plates and integrated milling cutters. The table of the universal milling machine can be rotated at a certain angle in the horizontal direction and has accessories such as a vertical milling head. His “Universal Milling Machine†was extremely successful when it was exhibited at the 1867 Paris Exposition. At the same time, Brown also designed a forming cutter that was not deformed by grinding, and then a grinding machine that made the milling cutter, which made the milling machine reach the current level.
Automatic Sliding Doors can either be a single door sliding in one direction or bi-parting doors where each door leaf slides in the opposite direction. They are often used in grocery stores, entrances to shopping malls, hospitals and other applications where you want to provide your customers a hands free, safe and easy access to your building.
Hospitals
Airports
Retail centers
Pharmacies
Hotels
Grocery stores
Hardware stores
Sporting goods stores
And more
In addition, one of the biggest benefits of automatic doors is energy savings. Since these doors only open when someone comes in or out of your building, it prevents the loss of energy when a door may otherwise be left open for a long time.
Hongfa will only dispatch highly trained CE Certified inspector/technicians to inspect, repair, service or replace automatic doors. This ensures we provide the most efficient and safest door repair for your business.
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