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WO/1989/012535A1 |
The invention concerns a spindle drive for a veneer lathe. In view of reducing the mobile masses of the drive gear equipment and making the lathe better adaptable to different log lengths, the opposite spindles in the lathe are provided ...
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WO/1989/012538A1 |
A tool with base plate (1) having upward curve (4) at the front has rotary bit (18) and smaller forward bit (48) both protruding through plate (1) and both driven by motor (14) through a gear train (36, 37 and 43, 45, 49). If the tool is...
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WO/1989/010235A1 |
A device for cutting stone has a plate (2) for supporting the stone to be cut, to which the stone can be clamped by means of a holding-down appliance (24). The cutting-off wheel (7) which cuts the stone can travel in the direction of fee...
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WO/1989/010530A1 |
A reference master part for linear dimensions and/or geometrical and/or shape features of determined workpieces (30) comprises precision-machined surfaces having mutual spatial arrangements such as to provide known references for said di...
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WO/1989/010241A1 |
A micromanipulator moves highly miniaturized objects in increments up to approximately 100 mum with high precision of movement. The micromanipulator is fitted with bimaterial tongues (1, 2, 3, 4) which can be positioned using heaters and...
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WO/1989/008533A1 |
This invention relates to a machine tool having two main spindles which are subject to driving control by servomotors (1 and 2) by giving velocity commands (Vcmd1) and (Vcmd2) for controlling, respectively, the speed of rotation of a fir...
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WO/1989/008002A1 |
An installation (1) for machining and/or assembling components (2) comprises workpiece supports (3) provided with receivers (4) for holding the components (2). The workpiece supports (3) are guided on a vertical and/or lateral guideway (...
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WO/1989/008003A1 |
Device for controlled rotational positioning of a carrier plate (8), which is rotatably mounted on a support member (2). The device can be included in e.g. a rotary feeder on a rotatable rotor frame. A motor (14) is connected to a rotati...
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WO/1989/005484A1 |
A machine tool having a plurality of drive shafts is controlled by a plurality of numerical control units of small capacity. In response to external numerical data, the numerical control units (CNC1) to (CNC4) having a programmable contr...
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WO/1989/005435A1 |
A probe for use in co-ordinate measuring comprises three orthogonal spring parallelograms (12X, 12Y, 12Z), each with a respective scale (32X, 32Y, 32Z) and read head (36X, 36Y, 36Z), for measuring the (X, Y, Z) location of a workpiece-co...
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WO/1989/005004A1 |
A system for returning a main axis back to a preset mechanical origin. A spindle amplifier (20) rotates a main axis motor (30) upon receipt of a return-to-origin instruction from a numerical controller (10), and positions the main axis m...
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WO/1989/004228A2 |
An airfeed peck drill includes a substantially cylindrical drill quill contained within a cylinder in a housing. On the rear end of the drill quill is located an offset piston, the offset piston provides force for the entry and exit of t...
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WO/1989/003747A1 |
A tool aggregate comprises at least one synchronized tool driven by a drive element. The drive element is arranged in a separate drive module and the aggregate is provided with a plurality of coupling points which can be selectively conn...
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WO/1989/003484A1 |
A hydraulic drive system for a punching or an embossing tool comprises a double-acting hydraulic drive cylinder with piston surfaces of various sizes. The fast feed, working feed and fast retrun are controlled by the joint or alternating...
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WO/1989/003277A1 |
A milling and boring head with a plurality of controllable axes comprises elements which allow the head to be rotated about a first axis and elements which allow the tool spindle to pivot about a second axis perpendicular to the first axis.
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WO/1989/003279A1 |
An orbital table assembly having a top plate (10) which can be made to orbit in a predetermined orbital path without rotating, and having a fixed base plate (20) under said top plate and a linkage plate (30) between the two other plates,...
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WO/1989/001844A1 |
A drill quill (2) for insertion in a rigidly mounted milling spindle (12) comprises essentially a drive spindle (4) which can be inserted in a known manner in the milling spindle, a drill spindle (30) rigidly coupled to the drive spindle...
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WO/1989/001837A1 |
Rotating, radially impacting rollers, balls or similar for compacting, drilling, excavating, and milling of rocks or other materials, have hewing picks, disks or similar, are internally activated, rotatably mounted and rotate slowly. Act...
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WO/1989/001388A1 |
A numerical control apparatus for a machining tool having a cross rail (13) movable in the direction of a W-axis and a quill (15) disposed on the cross rail (13) and movable in the direction of a Z-axis which is the same direction as tha...
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WO/1989/001579A1 |
A backlash-free drive for the adjustment mechanism of a microtome comprises a rotary threaded spindle (1) mounted axially immobile and two partial nuts (2a, 2b) connected in a mutually non-rotary manner but which slide relative to each o...
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WO/1989/000235A1 |
Linear activation of one or more rotatably mounted or, if necessary, driven cutting, milling, or roller bits (5) by means of two synchronously counterdriven high-speed flyweights, masses or similar mutually offset at 180?? in/on a housin...
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WO/1988/009945A1 |
The invention provides a positioning apparatus for accurately positioning one part of a device relative to another and is designed to be vacuum compatible for use in vacuum chambers at ultra-high vacuum. To achieve this, no lubrication i...
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WO/1988/005369A1 |
A sawing machine comprises a housing (14), an arm (3) pivotable relative to the housing about an axis (2), a member (4) on the arm, said member being arranged for connection to a saw tool and being rotatable about an axis spaced from the...
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WO/1988/003458A1 |
The workpiece-holder spindle comprises a spindle body (10) mounted on a slide (202), a spindle rotor (50) supported by active magnetic bearings and rotatingly driven by an external electric motor (2) connected to the rotor via a coupling...
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WO/1988/000507A1 |
A spindle driver for a machine tool which is adapted to move the spindle and a tool driven thereby in a helical path with variable pitch and with an orbital radius which may be varied. A quill (14) is mounted on a support member (12) and...
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WO/1987/004971A1 |
A power train for a cutting device (1) includes a rotary cutting tool (47) for cutting or abrading pavement and the like. A prime mover (1) powers the cutting tool. The prime mover has a crankshaft connected to a shaft extension member (...
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WO/1987/004959A1 |
Lathes have generally only two displacement axes for the tool, which are the displacement direction of the longitudinal and transversal supports. However, since controlled tools are more widely used, in particular with numerically contro...
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WO/1987/003523A1 |
An automatic shift drill (10) for rotationally driving a bit into a laminated workpiece at one of two speeds according to the depth of the bit in the workpiece. A cam block element (182) has flag sections and gap sections corresponding t...
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WO/1987/002289A1 |
Device for reducing the roughness of plane or cylindrical surfaces of a body (12) machined on machine tool, provided with grinding wheel (6) having suitable granulometry on saddle (5) fastened to the fixed part (8) of said machine in a t...
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WO/1987/001641A1 |
A device in a drive means for a tool (7), e.g. a file or a milling tool, intended for mounting on the arm (2) of an industrial robot for burring on cast-iron goods (4) or the like, comprising a casing (9) with a motor (10), especially a ...
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WO/1987/000473A1 |
A machine tool includes an elongate tool holder (15) which is mounted by a pair of spring strips (20) for pivotal movement on a mounting (16). One end of the tool holder carries the tool (18) while the other end of the tool holder is mov...
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WO/1986/005734A1 |
Tooth belts or toothed rack drives are used to generate a relative movement between two machine components (1, 2) adjacent to one another, in particular a machine bed and a machine sled. In both cases, a belt (8) is provided which extend...
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WO/1986/004535A1 |
Tools for automatic machine tools and measuring probes for measuring machines (both referred to collectively as tools) are provided with electric circuits for driving motors in the tools and/or powering telemetry systems. Power for such ...
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WO/1986/002304A1 |
The axial pre-loading of a bearing with a shaft-mounted nut has the disadvantage that owing to the unknown frictional conditions in the thread and on the application surface of the shaft nut, there is no fixed relationship between the to...
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WO/1986/001139A1 |
A tool holder (11) for driven tools enables to increase the total number of driven tools (12, 13). The drive unit (15) arranged on a tool revolver in the tool holder (11) in parallel to the tool clamping shaft (14) is transformed into an...
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WO/1985/005586A1 |
Protection of the guide (9, 14) of two machine parts (1, 2) which move in relation to one another and are linked together by this guide (9, 14). In order to protect the guide track (9) located on a machine part (1) from this accumulation...
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WO/1985/005310A1 |
In order to guide a tool (17) along a curve (24), a curve follower is connected to the tool, said curve follower including two rotatable means (43, 44), one (44) of which is driven and the other (43) freely rotatable. The two rotatable m...
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WO/1985/005063A1 |
The sides of tree trunks transported in a longitudinal direction are shaved by two cutting heads (4), which are arranged with rotation axis parallel to each other and are driven in opposite directions of rotation. The cutting circles (4a...
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WO/1985/003473A1 |
An oscillating tool, particularly a cast cutter (40) having a support housing (46) with a cutting blade (70) interconnected to the housing (46) proximate one end thereof for oscillatory rotational movement about an axis (56). A torsion s...
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WO/1984/001444A1 |
An acceleration and deceleration circuit accelerates or decelerates a feed speed up to an instructed speed at a predetermined time constant (tau), irrespective of variations in the speed. This circuit comprises means (301) for calculatin...
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WO/1984/001099A1 |
A bent part for dentist comprises a head element (1) arranged perpendicularly to the driving axis comprising an interchangeable tool (5) having a cylindrical rod (50) to which a toothed wheel is secured. A locked top bearing (42), rotati...
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WO/1984/000912A1 |
The device for deburring and bevelling (inner and outer) drilled bores is provided with a casing and a drive shaft extending therefrom as well as with an arm carrying a deburring and bevelling tool as well as with a toothed belt to drive...
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WO/1984/000911A1 |
A computer controlled engraving table having a base (36) with an opened interior space (38) and a platform (40) for supporting the workpiece (42) to be engraved which can be quickly coupled or decoupled from the base. Also provided is a ...
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WO/1984/000512A1 |
The spindle of the unit, with pneumatic feed, is directly driven by a motor (12) or a by a flexible shaft (9). An interchangeable gear set (4) allows to appropriately select the number of revolutions of the tool: a plurality of gear sets...
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WO/1983/003119A1 |
Known jet turbine driven machine tools suffer considerable speed reductions when the load increases or varies. This results from interference between the spent air and the working jet. In the case of the present invention the turbine, dr...
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WO/1983/002743A1 |
A table driving device for a machine tool which has a machining table (12) for positioning a workpiece, a driving table 913) movably connected to the machining table (12) across a gap (t), table driving means connected to the driving tab...
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WO/1983/002142A1 |
An improved ball nut (10) having adjustable preloading comprises a pair of ball nut halves (12a, 12b) both in threaded engagement with a ball screw (14). Only one of the nut halves is secured to a movable machine member, the other nut ha...
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WO/1983/001752A1 |
A gear hobbing machine is provided with a hypoid gear set, (78), (80), and a spur gear set (82), (84) for reducing the final drive to its work spindle. An optional supplemental driving system comprised of motor (86) and gears (88), (90) ...
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WO/1983/001030A1 |
Protection device against overloads in a machine-tool wherein a support (12) is slidingly mounted in the frame of the machine (11) by means of a threaded rod (16) between the tail stock and the head stock, a driving motor and a displacem...
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WO/1983/001034A1 |
A system to manufacture a portable radial arm machine with the feature of being easily demountable into two main parts (1), (2) and of being quickly assemblable in two different versions respectively in a working setting and in a compact...
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