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An automatic lathe may have a single spindle or multiple spindles. Each spindle contains a bar or blank of material that is being machined simultaneously. A common configuration is six spindles. The cage that holds these six bars of material indexes after each machining operation is complete. The indexing is reminiscent of a Gatling gun.
Bullard Mult-Au-Matic, a vertical, multispindle automatic lathe, 1914. [1] Memorial Day 1942 at Bullard. The Bullard Machine Tool Company was a large American machine tool builder. It specialized in vertical boring mills and was largely responsible for the development of the modern form of that class of machine tools. [2]
Bullard Jr. continued the family machine tool business and brought the turret principle to the vertical boring mill, making it a vertical turret lathe. [2] He led the development of the company's multiple-spindle Mult-Au-Matic brand machine that became an important automatic lathe in the mass production of parts for the automotive industry.
The company manufactures automatic single-spindle lathes, multispindle lathes, [32] peripheral systems, bar mills for microtechnology applications [33] and bar feeders. [34] The machines are controlled by the company's communication and programming software Tisis and are used in the automotive, medical, electronics, watchmaking and ...
Multispindle lathes have more than one spindle and automated control (whether via cams or CNC). They are production machines specializing in high-volume production. The smaller types are usually called screw machines, while the larger variants are usually called automatic chucking machines, automatic chuckers, or simply chuckers. Screw machines ...
Motion is controlling multiple axes, normally at least two (X and Y), [4] and a tool spindle that moves in the Z (depth). The position of the tool is driven by direct-drive stepper motors or servo motors to provide highly accurate movements, or in older designs, motors through a series of step-down gears.
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