Turret bank
A turret bench is a historic metalworking lathe .
description
The turret benches used to be used especially for the manufacture of mass-produced articles. With them, the tool slide is provided with a device that allows several tools to act on the workpiece one after the other, namely after the drum of a turret (see also tool turret ). Using this invention, which was new at the time, it was possible, for example, to produce screws in large numbers at low cost. While with the normal center lathe a shortening of the manual times (non-productive times) by multiple tool holders, automatic feed release and the like. a. This is the main purpose of the revolver benches. The turret lathe is therefore a special machine for series and mass production, where longer set-up times and higher purchase prices have to be weighed against time savings for a workpiece, taking into account their total number. In addition, there is the utilization factor in the company with regard to occupancy time ( depreciation ). The basic idea is: to have a certain number of tools ready for a certain number of the same workpieces with the same machining sequence, the operations one after the other if possible, i.e. H. Carry out all work by hand without reclamping the work piece and with the greatest possible disconnection. This not only saves time, but also helps ensure that the workpieces are identical in terms of dimensional accuracy and surface quality.
Today the term revolver bench is only used in rare cases. It was mentioned in DIN 331 until 1955 , then in DIN 1897.
Individual evidence
- ↑ turret benches . In: Meyers Kleines Konversations-Lexikon , 1908, fourth volume, page 728ff
- ↑ turret benches . In: Taschenbuch für den Maschinenbau, Springer-Verlag 1943, second volume, page 571ff