Abstract: An apparatus for controlling operation of a lapping, honing or polishing machine comprising at least one working disk having an abrasive means for honing, lapping, or polishing the surface of a work-piece and adapted to be driven by a variable working disk drive, at least one planetary gear member for carrying said work-piece and having teeth at its outer periphery, and inner and outer gear members in driving engagement with said planetary gear member, at least said inner gear member being driven by a variable inner gear member drive, said apparatus including a control stage for providing a control signal to said working disk drive and said inner gear member drive for controlling desired drive speeds, the improvement of which includes a computer 44 connected to said control stage for generating input signals for said control stage, which computer is arranged to calculate the speed of said inner gear member drive and the speed of said working disk drive by the following formulas:n.sub.L =K.sub.L .multidot.n.

Abstract: Method for controlling the operation of two-wheel housing machines, the machining wheels of which are pressed towards each other and onto the workpieces by means of a loading device at a predetermined variable loading pressure, wherein during operation the material removal of the work-pieces and eventually the machining wheels is determined by means of a measuring control device and the operation is discontinued when a predetermined value has been reached, wherein the material removal per time unit (actual value) is determined and compared with at least one predetermined value for the material removal per time unit and the loading pressure for the loading device is automatically increased when the actual value is below the predetermined value.

Abstract: A honing, lapping or polishing machine includes a central inner gear member and an outer annular gear member each having an annular row of teeth, and a plurality of workpiece holder discs having teeth at their outer peripheries in driving engagement with the teeth on the inner and outer gear members in a planetary gear type fashion. The workpiece holder discs have recesses for receiving workpieces. The number of teeth on the outer gear member is an integral multiple of the number of teeth on each workpiece holder disc. A drive assembly rotates the inner gear member and is arranged to stop the workpiece holder discs in a predetermined loading and unloading position of at least one of the discs in response to a position signal from a detector assembly. The detector assembly includes a position detector movable into the path of the discs to provide the position signal when one of the discs reaches a predetermined relative position with respect to the position detector.

Abstract: A control device for the processing pressure on honing, lapping and polishing machines, in which the tool is driven by motor via a spindle which is in its turn rotatably and essentially axially fixedly supported in a bearing member which is movable in the direction of the axis of the spindle, in which furthermore a double-acting actuation device engages at the bearing member via resilient means, and in which finally an energy sensor measuring the processing pressure transmits actual pressure signals to a program control which, dependent on time, compares the actual pressure signals with different preset pressure signals and from the comparison of the pressure signals generates adjusting signals for the actuation device. At least the resilient means counteracting the own weight of the tool is formed by a pneumatic adjusting means which is connected to a pressure gas source via a control valve.

Abstract: A machine for longitudinally cutting and/or grooving continuous sheet material comprises first and second stations each of which has means for cutting and/or grooving the sheet material, the stations being spaced apart longitudinally in a direction along which the sheet material is fed through the machine, the sheet material first passing the first station and then the second station. The stations are upwardly and downwardly movable between working and inoperative positions, and a device for cutting the continuous sheet material transversely into sections is also provided. The working positions of the two stations are in a common plane along which, in operation, the sheet material is fed and each of the stations has a first guide device for guiding the sheet material, the first guide device of each station being disposed on one side of the common plane when the station is in its working position.