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8136379 |
Helical part manufacturing apparatus and control method thereof
This invention provides an apparatus for manufacturing a helical part by feeding a wire W toward a pointing tool 21 and pushing the wire W against the pointing tool 21 to forcibly wind the wire....
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8113032 |
Punch device
Referring to a punch device in accordance with the invention, the punch stamp (10) is driven by a hydraulic actuating drive (6), in which case, in connection with an advance device (4) driven by a...
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7818985 |
Bending apparatus
A bending apparatus is provided with a ram start-up device so as to be movable in a lateral direction. A controller moves the ram start-up device to a point in front of positioning points of...
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7757526 |
Method for changing force control gain and die cushion control apparatus
A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion...
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7506530 |
Die cushion mechanism, and device and method for controlling the same
A device for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The device includes a section...
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7281403 |
Production device, in particular a folding press and a method for operating a production device
The invention relates to a production unit (1), in particular a bending press, and a method of operating the latter in order to shape workpieces of sheet metal between two press beams (15, 16)...
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7249478 |
Method and system for processing plate material, and various devices concerning the system
A method for processing sheet metal includes processing and forming a sample and a blank on a work while leaving a microjoint part in a blanking process. The method also includes detecting at least...
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7040129 |
Sheet working method, sheet working system, and various devices related to such system
An actual plate thickness and actual material constants are measured during punching before bending. The measured information is reflected on the bending, so that the bending is performed...
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6919555 |
Guard device for machines such as bending presses, cutting machines, stamping machines or the like
A guard device for machines such as bending presses, cutting machines, stamping machines or the like, has a first machine part which performs operative movements toward a second machine part. A...
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6826939 |
Method and device for detaching plate thickness in press
A ram descends due to its own weight and pressure of a rod-side cylinder chamber of a hydraulic cylinder which vertically moves the ram is detected by an oil pressure detector. A determination...
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6796155 |
Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device
A plate thickness detector for a bending machine causes a punch to make a relative stroke and bend a workpiece mounted on an upper surface of a die cooperatively by the punch and the die. A...
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6694795 |
Crimping system
A crimping system comprises a frame having a plurality of plates with a clamp adjacent to the lower end. Applicator mechanisms are adapted to feed crimpable components coupled together by and...
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6523384 |
Carry through monitor
An apparatus and method for monitoring the carry through state of a mechanical press is disclosed. Actual slide displacement curves under load conditions are continually generated for the press...
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6520077 |
Screw press
A screw press which can ensure the positional precision of the ram when the rotation amount of the press motor does not directly translate into the position of the ram because there is other...
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6460396 |
Power press
This invention relates to a hydraulic force modulator used in a power press to provide a predetermined force with a defined force applied by a ram of the press at defined incremental positions of...
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6434988 |
Tool controlling apparatus
A tool controlling apparatus includes a position controlling unit and a torque controlling unit for carrying out the conversion between the position control and the torque control of the tool for...
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6418768 |
Method and apparatus for producing a crimp connection
A crimping including a stand at which a motor and a transmission are arranged. Moreover, first guides, at which a crimping bar is guided, are arranged at the stand. A shaft driven by the...
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6250128 |
Forging die and upset forging method
An upset forging die device and method are provided for upset-forging a raw material that is being filled in a cavity of a lower molding die at a portion between an upper punch of an upper molding...
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6237381 |
Power press ram force modulation and apparatus for use therewith
This invention relates to a hydraulic force modulator used in a power press to provide a predetermined force with a defined force applied by a ram of the press at defined incremental positions of...
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6212924 |
Process and apparatus for determination of the quality of a crimped connection
A crimping press having a motor, a gear and first guides, at which a crimping ram is guided, arranged at a frame. A shaft driven by the gear has an eccentric spigot at one end and a resolver for...
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6205828 |
Forging die, and method and apparatus for controlling the same
A hydraulic pressure control apparatus comprises a high pressure accumulator for sucking pressure oil supplied to a relief chamber of a relief valve to make changeover for the relief valve from a...
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6125676 |
Control system for controlling a rod mill
A control system for controlling a rod mill wherein a general-purpose motor can be used together with servomotors in controlling the operational sequence of processes, wherein the time required for...
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6012312 |
Double blank detector apparatus and method of operation
A double blank detector apparatus and method of operation determines the condition of when one blank, no blanks or more than two blanks are about to be fed into a press. An indicator bar advances...
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5941110 |
Adaptive method and apparatus for forming tailor welded blanks
Method and apparatus for TWB forming with adaptive control of movable punch and/or die segments in a manner to maintain a holding force at the weld line by the punch and die segments during at...
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5921125 |
Control method of terminal crimping device
A method of controlling a terminal press attaching device by providing a elevating crimper for crimping terminals onto exposed conductors of the cables, setting an anvil opposite to the crimper,...
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5784913 |
Pressure die assist boost system for tube bending machine
A machine for cold bending a thick walled tube is provided which includes a rotatable bend die around which the tube is bent and a pressure die which engages an outer side wall of the tube...
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5771726 |
Apparatus and method for twisting hollow rods
Apparatus and methods for uniformly twisting hollow, open-seam rods with preferably rectangular cross-sections for use as decorative curtain rods are disclosed. The twist extends throughout...
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5735155 |
Method for manufacturing patterned tread plates
A method for manufacturing patterned tread plates including the steps of providing a press having a path for advancing a sheet therethrough, the press being equipped with a progressive die...
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5622069 |
Stamping die with attached plc
A metal stamping die for a punch press is provided that has a programmable logic microcontroller fixed directly to the die body of the stamping die. The programmable logic microcontroller is...
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5557959 |
Modular die transfer system
A die transfer system for transferring workpieces through successive die stations in a stamping press includes an enlongated finger bar having spaced fingers for engaging workpices at successive...
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5394720 |
Apparatus for producing form wound stator coils
Apparatus for forming a form wound stator coil from a bobbin has means for clamping the straight portions of the bobbin to define the straight portions of the each leg of the coil. It also has...
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5379624 |
Slaved tube length control for hairpin bender
A method and apparatus for controlling the orienting of the ends of a finite length segment of tube following a bend thereof through a predefined angle. A supplying and delivering device supplies...
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5299478 |
Method for controlling punch press noise
A method for controlling punch press noise in which the noise level produced is monitored by a detector and the press ram velocity is modified in real time to keep the noise level within preset...
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5115661 |
Forming parts from ductile materials
Method of stretch forming a workpiece comprising placing the workpiece on a former, gripping the workpiece by at least one gripper, pulling the workpiece to a desired configuration over the former...
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4977769 |
Rolling machine with exchangeable rolling tools
A rolling mill wherein the frame or frames for pairs of superimposed rolling tools can be lifted off the base by a crane. Each rolling tool carries a first clutch element receiving torque from a...
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4934169 |
Method for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape
Method for moving a tool (8) relative to and into engagement with an incrementally advanced metal strip (10) having a repeated basic shape. Between the advancements, the strip (10) is held...
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4753099 |
Bending press for sheet metal
A bending press includes a work support table comprised of a pair of support elements, at least one of which is mounted on the frame for movement generally vertically relative to the work support...
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4640114 |
Automated process for cold working holes
A method for cold working holes employs an automatic riveting machine that is fed with memory metal sleeves having an O.D. slightly smaller than a hole to be worked. A mandrel is forced into the...
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4565081 |
Forming machine
A forming machine comprises a rotatingly drivable gripping device (1) for gripping a forming tool (2) and a material plate (3) to be formed, a movable lower slide (6), a first drive (8) for moving...
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4502307 |
Wire bending machine
The invention relates to a wire bending machine which incorporates an hydraulically actuated bending tool-slide or pusher. According to this invention the total stroke of the pusher is subdivided...
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4449083 |
Stagger feed control circuit
Control circuitry for a work strip stamping machine to control the longitudinal advance and the transverse strip shifting so that a selected number of rows can be automatically stamped, the control...
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4389875 |
Method and apparatus for making beads on drums
The present machine, sometimes known as a beader or drum beader, receives a steel drum in a horizontal position and expands circumferential beads into the body to provide structural strength. A...
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4387583 |
Bending and forming tool
Bending and forming apparatus comprises an anvil adapted for use in a press in conjunction with a die connected to an opposed portion of the press, to form and bend material interposed therebetween...
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4161110 |
Automatic control device for a bending machine
The invention relates to an automatic control device for a bending machine for use in the production of loops of bar or wire material for concrete reinforcement. The device includes a preselector...
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4132094 |
Machine for forming helicoidal springs
The present invention relates to the manufacture of helicoidal springs in which there is associated with the mandrel for rolling of the spring a rotating cylinder carrying a helicoidal trace...
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3945230 |
Process for automatically interchanging die assemblies in a metal working press and apparatus therefor
Process and apparatus are disclosed for automatically interchanging die assemblies in a metal working press having a pair of moving bolsters to be used alternately in the press. An initial...
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3935721 |
Tubing bending machine
A tubing bending machine is disclosed comprising a die and cooperating shoe means, means for advancing the die toward the shoe means to bend a pipe positioned therebetween, and a hydraulic piston...
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3874206 |
Stroke-end programmer for machine tool
A device is disclosed for programming the terminal portion of the operative stroke of the tool in a machine tool equipped with hydraulic driving means. The stop motion comprises essentially a...
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3874205 |
DIGITALLY CONTROLLED MULTIPLE DEPTH STOP AND RETURN STROKE LIMIT CONTROL FOR PRESS BRAKES
A hydraulically driven press brake has an automatically positioned back gauge capable of changing workpiece gauging location after each bend. Variable ram closing stroke depth and variable ram...
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3841143 |
APPARATUS FOR CONTROLLING THE ACTUATION OF AN ACCESSORY DEVICE IN AN OIL PRESSURE ACTUATED PRESS
An apparatus for controlling the actuation of an accessory device of an oil pressure-actuated press in such a manner that the accessory device, such as a scrap cutter, a product feed device, a...
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