The Milling Machine was originally a horizontal milling machine created by American E. Whitney in 1818.In order to mill the spiral groove of the twist drill, American J.R. Brown created the first universal milling machine in 1862, which is the prototype of the milling machine for the lifting platform.The portal milling machine appeared around 1884.Semi-automatic milling machines appeared in the 1920s, and the workbench used the stops to perform automatic conversion of [feed-fast" or [fast-feed".After 1950, milling machines developed rapidly in control systems, and the application of digital control greatly improved the automation of milling machines.Especially after the 1970s, the digital control system and automatic tool change system of the microprocessor were applied on the milling machine, which expanded the processing range of the milling machine and improved the machining accuracy and efficiency.As the mechanization process intensified, CNC programming began to be widely used in machine tool operations, which greatly released the labor force.CNC programming milling machines will gradually replace manual operations.The requirements for employees will also be higher and higher, and of course the efficiency will be higher and higher. Tool Milling,Tool Milling Machine,Milling Machine,Milling Machine Price Jiangsu Hoston Machine Tools Co., Ltd. , https://www.haostonmachinetools.com
How to choose pneumatic actuator
Actuators have sub-electric and pneumatic. To pneumatic, for example, the pneumatic is divided into single role (spring reset) and double role. Pushed by the compressed air screw driven stem rotation. 1. According to the size of the gas source (instrument gas) to select the actuator 2. Torque required to turn the valve, too small to move, too large valve life is not long. Allow 30% of the allowance for the torque. 3. Installation platform, there are standards, as long as the valve according to the standard will not find fault. More keyword search: Pneumatic