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Document Title |
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8142118 |
Working machine
The invention refers to a working machine with a machining tool which can be set in a spindle head of a working spindle. A monitoring unit is provided which monitors the shape of the spindle head.
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8079130 |
Method for assembling sheets by riveting
The invention relates to a method for assembling sheets by riveting, comprising a step for piercing a hole through the sheets, followed by a step for placing a rivet in the pierced hole, the step...
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8070400 |
Device for the high-speed drilling of printed circuit boards
A device for the high-speed drilling of boards for printed circuits and the like. The device has a support, a drill head with an associated mandrel, and a member for locking and driving a drill bit...
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8021089 |
Method and system for producing holes of various dimensions and configurations in a workpiece
Method and system for producing holes of various dimensions and configurations in a workpiece (42) using a portable orbital drilling machine (44), wherein said workpiece has attached thereto a...
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7891918 |
Drill
A drill has a housing, a drivable drill spindle rotatably mounted in the housing, a chuck body coaxially connected and rotationally fixed to the drill spindle, a tightening sleeve rotatable on and...
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7882901 |
System and method for breaking chips formed by a drilling operation
A drilling machine is provided for breaking chips formed by drilling action into manageable lengths. The drilling machine comprises a first gear having a first axis of rotation, and a cam follower...
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7811033 |
Tool with remote switch
A non-pneumatic system for use with a workpiece is described. A clamp assembly having a clamp pad is secured to the cabinet. An electrically operated tool is movably secured to the cabinet. The...
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7740425 |
Smart accessories for power tools
Accessories for power tools and combinations are provided. An accessory for a power tool may include a body including a connecting portion for connecting the accessory to the power tool and a...
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7699566 |
Tool chuck with sleeve and clutch mechanism
A tool chuck may include a chuck body defining a longitudinal axis. A sleeve may be mounted on the chuck body and axially fixed relative to the chuck body. A clutch part may be provided on the...
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7677844 |
Electronic clutch for tool chuck with power take off and dead spindle features
A power driver may include a motor that rotates upon receiving an input current. A tool chuck may have chuck jaws to hold an accessory. The tool chuck may be coupled to the motor. A power take off...
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7556457 |
Drilling system including drilling machine and compressor
A compact drilling system capable of improving working efficiency. The drilling system includes a drilling machine and a compressor. A control circuit controls performances of a drill motor in the...
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7510024 |
System and method for breaking chips formed by a drilling operation
A drilling machine is provided for breaking chips formed by drilling action into manageable lengths. The drilling machine comprises a first gear having a first axis of rotation, and a cam follower...
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7375361 |
Optical alignment device for machine tool
The orientation of a machine 2 relative to a work-piece 10 is manually controlled by means of an alignment device 4. The device 4 includes a light source 24 rigidly attached to a foot 12 that is...
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7367761 |
Tool, tool holder and machine tool
A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed...
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7264426 |
Apparatus and methods for servo-controlled manufacturing operations
Apparatus and methods for servo-controlled manufacturing operations are disclosed. In one embodiment, an apparatus includes a base member, a drive platform spaced apart from the base member by a...
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7065428 |
Processing machine
A processing machine, in particular a processing center, with a spindle, a tool clamping device, a converter unit with a spindle motor, at least one oscillation sensor and a balancing apparatus is...
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7048077 |
Drilling machine with pneumatic control
A pneumatic drilling machine is provided, comprising a pneumatic motor, a circuit for connecting the motor to a source of compressed air, a tool holder spindle, and a drive mechanism. The drive...
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6910836 |
Impact driver for rotary tools
Method and apparatus for improving the efficiency of the rotating cutter of a tool by converting at least part of the rotational torque applied to the cutter to repeated rotational impact forces.
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6874980 |
Controller for the electric motor of a high-speed spindle attachment used with computer-controlled milling machines
An improved electronic controller for the motor of a high-speed spindle attachment used in conjunction with a cnc milling machine. The controller comprises preventative circuitry that protects the...
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6859680 |
Numerical controlling unit having tool-breakage detecting function
A numerical controlling unit includes: an inputting part into which a machining program is inputted; an analyzing part that analyzes the machining program to generate an instructed spindle...
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6551033 |
Tapping apparatus and method
A CNC tapping machine includes a spindle to which a tap is attached and a spindle motor for rotating the spindle. The load torque acting on the spindle motor that is detected when performing a...
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6476575 |
Method and system for adaptive control of turning operations
An adaptive control system for adaptively controlling a turning operation performed at a work piece by a turning tool adjusts a controlled input operation parameter F to maintain an output...
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6474914 |
Tool-driving device, particularly for machine tools
A tool-driving device (1), which is particularly provided for machine tools, has an internal drive (9), which serves to drive a tool. Also provided is a control device (36), which detects the...
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6438446 |
Material directory-spindle speed and feed rate calculator
A programmable command module for inputting a surface foot rating parameter into a device for controlling the spindle speed of a cutting tool. Based upon the surface foot rating, the proper speed...
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5954457 |
Hand-held device
A motor-operated hand-held device (1), such as a drilling device, has a rotary spindle 6 located in and projecting out of a housing (2). Rotational movement of a driving motor (8) is transmitted to...
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5914882 |
Device for and method of preventing accidents in hand-operated machine tools due to tool jamming
A device for and method of preventing accidents caused by jamming of a tool when working with hand-operated machine tools driving a rotating tool, especially hammer drills, is outfitted with an...
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5902077 |
Variable speed universal drilling tapping and reaming machine
One of two arms is mounted adjacent one end thereof for rotation and axial adjustment on a cylindrical column which projects vertically upwardly from a generally flat, rigid base. The second arm is...
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5895177 |
Machine tool with fault detection
A machine tool includes a spindle having a cutting tool for cutting a workpiece. For fault detection, a control unit of the machine tool detects a value representing a torque applied on the spindle...
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5857814 |
Apparatus for controlling tapping-drilling machine
An apparatus for controlling a tapping-drilling machine is disclosed in which holes can be formed by means of drilling tools, and threads can be formed by means of tapping tools. A worm is...
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5654894 |
Gain changing control system for a threading apparatus
A threading apparatus is capable of eliminating a rise delay in the feed velocity due to friction resistance and can perform high-precision threading even in high-speed tapping. A feed servo...
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5584619 |
Method of and arrangement for preventing accidents during operation of a manually-operated machine tool with a rotatable toolbit
A method of and an arrangement for preventing accidents during operation of a manually-operated machine tool having a rotatable toolbit and a drive motor for driving the toolbit, wherein an...
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5558476 |
Dual-motor-driven drilling machine and method of controlling currents flowing in motors
An automatic drilling machine has an electric drilling unit on which a cylindrical cutter is rotatably mounted. The drilling machine includes a drill motor for rotating the cutter and a feed motor...
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5401124 |
Hand-held power tool with jamming-detection sensor
A hand-held machine tool has a housing, a tool rotatable about a rotational axis, a motor provided with a gear unit and driving the tool in rotation about the rotational axis, the gear unit having...
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5352069 |
Method and apparatus for a numerically controlled tapping machine
An improved numerically controlled machine tool is provided by resiliently coupling an independent drive mechanism to a toolholder which in turn is fitted to the numerically controlled machine. The...
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5116168 |
Method and apparatus for controlling drilling operation
In drilling control method and apparatus for making holes through a composite workpiece made of a plurality of materials having different machining properties, the workpiece is first drilled at a...
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5093972 |
Tapping control unit
A control unit capable of driving a compound lathe so that an end face of a rotating workpiece can be tapped. The control unit (100) comprises first and second control circuits (110, 120) for...
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5087157 |
Electromagnetic base drill with intermittent feed
The states of contact switches are switched when a mode switch is turned on. If the drilling operation is effected by means of a drill motor in this state, an oscillation signal which is repeatedly...
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5032778 |
Apparatus for controlling operating stroke of reciprocating member, using encoder signal
An apparatus for controlling an operating stroke of a reciprocating member to be reciprocated by a drive motor. The apparatus includes an encoder adapted to generate pulses each of which...
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5022798 |
Thrust-responsive two-speed drill and method of operation
A positive feed drill and method of operation is disclosed for drilling through a workpiece consisting of a softer overlay material on a harder base material. The positive feed drill includes a...
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5014793 |
Variable speed DC motor controller apparatus particularly adapted for control of portable-power tools
A portable electric power tool having a DC motor for driving tool bit is controlled according to speed and torque by employing a zero displacement switch means which is coupled to the tool and...
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4998589 |
Variable speed drill control cam apparatus
A drill control organization includes a cam member rotatably mounted within spaced support blocks, wherein a forward support block is mounted within a side surface of a handle and coextensively...
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4985841 |
Tapping control system
Disclosed is a tapping control system capable of performing tapping work with high accuracy and reliability in a manner such that rotation of a tap by means of a digital spindle motor (1) is...
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4878679 |
Variably operable hand-held device
A hand-held device, such as a hammer drill, has a replaceable axially extending holder for a working tool. The device includes a sensor and a signal transmitter for adjusting its operating...
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4879660 |
Thread cutting machine with synchronized feed and rotation motors
A thread cutting machine is provided with a control system in which, according to one aspect, the rotation of the spindle is controlled in the synchronous manner following up the feed amount of the...
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4854786 |
Computer controlled automatic shift drill
The trust exerted on a drill bit is sensed and employed to determine the speed at which the bit is driven. A controller for the drill compares the thrust to a predetermined threshold value and in...
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4831364 |
Drilling machine
A drive motor connected to a drill bit serves to actuate the drill bit. An electric current is allowed to flow through the drive motor to activate the drive motor. A mechanism serves to feed the...
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4830549 |
Hand-held device with tool sensing means
A hand-held device with a holder for a working tool has a sensing mechanism for automatically initiating different operating modes. Different configurations of working tools inserted into the...
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4822215 |
Thrust and torque sensitive drill
A thrust and torque sensor is provided for an automatic drill so as to result in an efficient drilling operation for laminated materials. Sensors are placed in one instance in conjunctioln with a...
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4820087 |
Tap drive unit for machine tools
A tap drive unit for machine tools, which is coupled to the machine-head of the machine tool such as a machining center, includes a driver detachably coupled to a main spindle of the machine tool...
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4813821 |
Thread cutting machine
A thread cutting machine where the rate of advance of the thread cutting tool is controlled by means of a control system whereby the rotation of the tool and its rate of advance toward the...
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