Abstract:
Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool with the signals so as to obtain the processing geometries; and apparatus for performing the method.
Abstract:
A system for automatically positioning a plurality of tool-holding carriages along an elongate guide member utilizes a single drive member to move all of the carriages simultaneously. The carriages each have clutches for selectively engaging or disengaging the drive member so that the carriages can be moved relative to each other by the drive member, and can be moved simultaneously in opposite directions along the guide member if desired. The drive member is capable of moving each carriage throughout its respective maximum range of movement with a continuous motion, without any reversal of the drive member or any disengagement of the respective carriage from the drive member. Each carriage has an electrically-powered position sensor capable of transmitting different discrete signals for different positions of the carriage so that it provides absolute indications of position rather than indications which are relative to some reference position. A sealing enclosure surrounds both the drive member and the carriages, so as to prevent the entry into the enclosure of airborne particles, and likewise surrounds all fluid and electrical power conduits to the carriages. Automatic positioning of the various carriages is simplified by precisely positioning them sequentially, in an order corresponding to progressively larger distances of movement required for each carriage to reach its desired position.
Abstract:
A system for automatically positioning a plurality of tool-holding carriages along an elongate guide member utilizes a single drive member to move all of the carriages simultaneously. The carriages each have clutches for selectively engaging or disengaging the drive member so that the carriages can be moved relative to each other by the drive member, and can be moved simultaneously in opposite directions along the guide member if desired. The drive member is capable of moving each carriage throughout its respective maximum range of movement with a continuous motion, without any reversal of the drive member or any disengagement of the respective carriage from the drive member. Each carriage has an electrically-powered position sensor capable of transmitting different discrete signals for different positions of the carriage so that it provides absolute indications of position rather than indications which are relative to some reference position. A sealing enclosure surrounds both the drive member and the carriages, so as to prevent the entry into the enclosure of airborne particles, and likewise surrounds all fluid and electrical power conduits to the carriages. Automatic positioning of the various carriages is simplified by precisely positioning them sequentially, in an order corresponding to progressively larger distances of movement required for each carriage to reach its desired position.
Abstract:
In an automatic programming system for a two-saddle NC turret lathe, shape definition and machining data for defining a machining condition for each machining step are input at each machining step together with a machining code indicating the machining from machining step input apparatus, and stored in a memory. A series of machining steps to be performed by each saddle is set in steps S1 to S9 by assigning, with a machining assigning/setting apparatus, either a machining code indicating the machining condition at each of the series of the machining steps or a wait command. Then, the machining program for each saddle is automatically created by program creating apparatus in accordance with the set data and stored data.
Abstract:
A machine tool with multiple spindles and tool supports operable independently and simultaneously under independent working programs is provided with a tool support synchronizing system to produce synchronized operation of plural tool supports. Each of the working programs produces as a special synchronizing command a predetermined single character or symbol. Control circuits which control the shifting of a respective tool support in response to commands from a respective working program are synchronized with one another in response to the receipt of the special synchronizing command received from the working programs.
Abstract:
A numerically-controlled lathe with program-controlled tool heads comprising a slide which is controlled by a numerical control unit according to tape commands in movement in parallel with and at a right angle to an axis of a spindle of a headstock, a single or plural number of No. 1 tool heads which are mounted on said slide and provided with a plural number of cutting tools to be used to cut an outside diameter and inside diameter of a workpiece being mounted on said spindle, a movable head which is located away from said slide in reference to the headstock and is controlled by a presetting means of a presetting type program control different from said numerical control unit with respect to a movement in parallel with the axis of the spindle and No. 2 tool head which is mounted on said movable head and is provided with a cutting tool to be used to cut the inside or outside diameter of said workpiece, wherein a signal generated from said numerical control unit which controls the No. 1 tool head is received by the presetting type program control unit which controls the No. 2 tool head and a signal generated from the presetting means of the presetting type program control unit is received by said numerical control unit to make the presetting type program control unit different from said numerical control unit and the numerical control unit according to tape commands mutually restrict and control, in the numerically-controlled lathe with program-controlled tool heads including said Nos. 1 and 2 tool heads capable of simultaneous cutting.
Abstract:
A flame cutting apparatus includes a carriage support longitudinally movable over a work blank. A front bridge unit and a rear bridge unit defining a pair of separate transverse torch supports. The front bridge unit is a conventional multiple torch system to permit cutting of two or more members simultaneously from the blank. The second bridge unit is especially constructed to receive a cutting torch and to permit complete transverse of the work blank. Both bridge units have a common longitudinal servo drive means for the corresponding positioning longitudinally over the blank. A pair of separate and alternately operable transverse servo drives are provided, one each for each of the two bridge units. A selector switch connects one or the other but not both of the transverse servo drives into the main control for introduction of only one unit for simultaneously and integrated movement with the common longitudinal servo drive means. The rear bridge unit consists of a supporting bridge and carriage structure which is releasably interconnected to the main carriage for selective incorporation as a part of a basic multiple torch machine line.
Abstract:
Working elements such as cutters or scorers for operating at different width positions across a lengthwise moving web, such as paperboard, are positioned widthwise by according to a digitally coded program. Each element, which is provided with a position storage register, is moved along by an associated yoke which is also provided with a position storage register. The element storage registers are programmed, as from a tape etc. to a count corresponding to a desired new position. The yoke registers maintain a count corresponding to their actual position. All the yokes are driven along a common path across the web while simultaneous comparisons are made between each pair of registers. As the comparisons for each pair of registers reach zero the yoke is declutched and remains in position until all the others have been positioned. The yokes may then be disengaged from their elements for repositioning of other elements by making similar comparisons and driving the yokes to the positions of these other elements. Possible errors in position programming are detected prior to driving the yokes by making comparisons between the programmed element storage registers to ascertain the presence of improper register signals which call for a shift in the order of the elements.
Abstract:
A device for governing the speed of a mobile member comprising: fixed indexing means located on the path of said mobile member; means located on said mobile member for detecting said indexing means; a variable speed motor located on the mobile member and operating a device for driving said mobile member, said motor being connected to a fixed portion of said position control device by means of flexible cables; a coarse measuring device responsive to said detecting means and including a coarse error voltage generator for generating a voltage proportional to the difference between a predetermined final position of said mobile member and the position actually occupied by said mobile member measured in coarse units, said coarse measuring device providing a constant speed control voltage to said motor; a fine measuring device coupled to the motor driving said mobile member and providing a decreasing speed control voltage for said motor; a commutator for replacing said constant speed control voltage applied to said motor by said decreasing speed control voltage; and means responsive to said coarse measuring device for detecting that said mobile member is approaching its final position and for operating said commutator.