Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1987-01-16
1989-04-18
Briggs, William
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
408239R, B23C 526, B23B 3106
Patent
active
048222208
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a method for machining devices, intended for machines that are of the type having a spindle, as lathes, boring machines and milling machines and such numerically controlled machines or multiple-operation machines or similar machines. The machining devices hereby comprises a bar with a draw-bar pin.
BACKGROUND
There is a need of a method for utilizing a machining device for several machining operations on a workpiece and further for using the same device for machining of the workpiece in various positions and locations. Further, there is a need for carrying out these machining operations in a simple manner with a simple device, that can be achieved at a relatively low cost.
TECHNICAL PROBLEMS
With known methods and devices a machining tool in the form of a bar can be utilized for machining of a workpiece in one position or one location, whereby further machining of the workpiece demands replacement of the bar with other bars. In order to reduce the costs for these expensive bars there are bars with two or more tools, whereby each tool can be used for machining the workpiece in one position or one location. For simplification of the work process there are even known methods and devices for automatic resetting of the machining tool, for example concerning bars for boring, but these devices are complicated and expensive to manufacture. Utilization of these known, resetable machining tools or bars also demands technologically advanced machines, such as numerically controlled multiple-operation machines, which among other things involve heavy investment costs, therefore utilization of the technique for resetable machining tools is limited and thereby to such manufacturers who are able to stand up for such heavy costs. Further, it should be pointed out that certain service, operational interruptions and repairs of such advanced machines and machining tools require the availability of specialists, who must for the most be engaged from other companies, and whose availability is limited, which in turn can cause relatively long and expensive production delays.
THE SOLUTION
The method in accordance with this invention permits however, a machining of a workpiece in a multitude of different positions and locations with only one machining device or bar which can also be arranged for an automatic resetting between the different positions and locations. Further, the method implies that the costs for the machining devices and for the production are considerably reduced, as are investment and maintenance costs, to a low level or as desired to a moderate and adapted level. Furthermore, the method is simple to use and can be adapted to the equipment and requirements existing. The method implies that the highest requirements that can be made upon machines and machining devices of the type in question can be fulfilled and the disadvantages with known methods can be eliminated, and this is achieved with a simple method at low costs in comparison with equivalent known methods. The methods in accordance with the invention is characterized in that, the draw-bar pin of the bar is arranged in communication with a tool element shown by the bar, which tool element is shaped to be able to hold tools or a tool holder for tools. Further, the draw-bar force of a spindle draw-bar shown by the machine is utilized to hold the tools or holder to the bar.
The invention also relates to a machining device, arranged for such machines having a spindle and spindle draw-bar, for example lathes, boring machines and milling machines or other workpiece cutting machines, and such numerically controlled machines or multiple-operation machines or similar, whereby the machining device comprises a bar showing a body and a draw-bar pin which is arranged to be able to be entered into engagement with the machine's spindle draw-bar. The device is characterized in that the draw-bar pin is arranged displaceable and in communication with a tool element shown by the bar which tool element is intended to hold tools o
REFERENCES:
patent: 3136217 (1964-06-01), Swanson et al.
patent: 3269271 (1966-08-01), Bruckner
patent: 3895881 (1975-07-01), Langlois
Danielsson Agneta
Danielsson Sven-Arne
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