Tag Archives: Gas valve supplier

The valve manufacturing and processing, and lathe relations are inseparable, the valve of the development and updating of the lathe for a very long history: the ancient lathe by hand or foot through the rope so that the workpiece rotation, and hand-held tool cutting.

In 1797, the British mechanical inventor Maudslay created the modern use a screw drive turret lathe change gears in 1800, the pitch can change the feed rate and the processing thread.

1817, another Englishman Roberts uses a four pulley and the back wheel mechanism to change the spindle speed. In order to improve the degree of mechanization and automation, 1845, Fitch invention turret lathe; 1848, the United States and the back wheel lathe; 1873, the United States, Spencer made a single-axis automatic lathe, and soon he made three axis automatic lathe; the early 20th century by a separate motor-driven lathe with gearbox.

After the First World War, the rapid development of the arms, automobile and other machinery industry needs, a variety of efficient automatic lathes and specialized lathe. In order to improve the productivity of small quantities of the workpiece, the late 1940s, the lathe with hydraulic copying devices have been promoted at the same time, multi-tool lathes have also been developed. In the 1950s, developed with punch cards, the latch plate and the dial code disk such as process control lathe.

CNC technology in the 1960s for the lathe, have developed rapidly in the 1970s. The lathe is the main car turning the knife on the rotation of the workpiece processing machine. Also in the lathe with a drill, reamer, reamers, taps, dies and knurling tools for appropriate processing. The lathe is mainly used for the processing shaft, disk sets, and other rotary surface of the workpiece, is the most widely used in machinery manufacturing and repair facility of a class of machine.

Lathe in accordance with the purpose and function area is divided into various types. Lathe processing object and a wide range of spindle speeds and feed rates to the amount of adjustment, can the inner and outer surfaces of the workpiece, end and internal and external threads. This lathe operation manual workers, low productivity, suitable for single, small-batch production and repair shops. Turret lathes and rotary lathe turret can hold multiple tools or back to the round turret, a fixture of the workpiece by the workers in order to use different tools to complete a variety of processes suitable for mass production.

The automatic lathe according to certain procedures, auto-complete multi-process machining of small and medium-sized workpieces, automatically loading and unloading, repeated processing of a group of the same workpiece, applicable in a large number of mass production. Semi-automatic lathes have single-axis, multi-axis, horizontal and vertical of multi-tool. Uniaxial horizontal layout of the form similar to the ordinary lathe, but the two sets of turret mounted on the spindle around or up and down respectively, for processing plate, ring and shaft workpiece, its increase of three to five times more productive than the ordinary lathe.

Can be modeled on the shape and size of the sample or sample copy lathe, auto-complete workpiece machining cycle, applicable to more complex shape of the workpiece, small batch and mass production, productivity 10 to 15 times higher than the ordinary lathe. Multi-turret, multi-axis, reels, vertical type. Vertical lathe spindle vertical to the horizontal plane, the workpiece clamping the rotary table level of turret to move on beams or columns.

For processing large, heavy, difficult to install on the lathe, the workpiece is generally divided into single and double column two categories. Backing-off lathe while turning, turret periodically for radial reciprocating motion for forklift cutter, hob, etc. forming the tooth surface. Usually with relief grinding attachment, grinding tooth surface by a separate motor-driven wheel shovel. Specialized lathe is used for processing certain types of specific surface of the workpiece the lathe, lathe, such as crankshaft, camshaft lathe, the wheel lathe, axle lathes, roll lathes and ingot lathe and so on.

Joint lathe is mainly used for turning, but attach some special parts and accessories, but also boring, milling, drilling, plug, grinding and other processing, with the characteristics of more than one machine can \"apply to construction vehicles, ships or mobile repair work on the repair station.