| WAFIOS AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20110240169 | STRAIGHTENING AND CUTTING-OFF MACHINE - A straightening and cutting-off machine for the production of straightened elements of predeterminable length from a wire-shaped material, in particular for the production of straightened bars from reinforced-concrete steel wire, has a feed device for drawing in material from a material stock, a preferably rotating straightening device for straightening the material conveyed into a working range of the straightening device by the feed device, a cutting device, following the straightening device, for separating a portion of predeterminable length from the straightened material to produce the straightened element, a length measurement system for measuring the length of the material and for generating a measurement signal representing the length, and a control device for activating the cutting device on the basis of the measurement signal. The measurement system is a contactlessly operating optical measurement system, in particular a laser measurement system, which allows length measurement continuously with high measurement accuracy even at high run-through speeds. | 10-06-2011 |
| 20110239719 | METHOD AND APPARATUS FOR PRODUCTION OF HELICAL SPRINGS BY SPRING WINDING - A method produces helical springs by spring winding with a numerically controlled spring winding machine, a wire is fed, controlled by an NC control program, through a feed device to a forming device of the spring winding machine and is formed with the aid of tools in the forming device to form a helical spring. A measurement time is defined which occurs in a final phase of an overall manufacturing time for the helical spring at a time period before the end of the overall manufacturing time. A position of a spring end which is formed by an end surface of the wire is measured at this measurement time to determine an actual angle position of the spring end. A remaining distance for the wire feed is then calculated to achieve a nominal angle position of the spring end, as intended for the helical spring, at a reference time which occurs at a later time and the wire is fed through the remaining distance. The method allows the relative angle position of the spring ends of a helical spring to be set very precisely. | 10-06-2011 |
| 20110239718 | METHOD AND APPARATUS FOR PRODUCTION OF HELICAL SPRINGS BY SPRING WINDING - A method of producing helical springs by spring winding with a numerically controlled spring winding machine includes feeding a wire, controlled by an NC control program, through a feed device to a forming device of the spring winding machine, forming a helical spring from the wire with tools of the forming device, defining a desired nominal geometry of the helical spring and an NC control program adapted to produce the nominal geometry, measuring an actual position of a selected structural element of the helical spring relative to a reference element at least one measurement time, which occurs after a start and before an end of production of the helical spring in a measurement area which is at a finite distance from the forming device in a longitudinal direction of the helical spring, wherein the distance is less than an overall length of the finished helical spring, comparing the actual position with a nominal position of the structural element for the measurement time to determine a current position difference, which represents a difference between an actual position and the nominal position at the measurement time, and controlling the position by at least one of the tools of the forming device, which tool determines a pitch of the helical spring as a function of the position difference. | 10-06-2011 |
| 20110218667 | FORMING MACHINE FOR PRODUCING FORMED PARTS - A forming machine for producing formed parts by forming wire, tube or other elongated workpieces has a plurality of driven machine axes, a drive system having a plurality of electrical drives for driving the machine axes, a control device for the coordinated control of operating movements of the machine axes in a production process according to an operating program specific to the production process, and a speed setting device for setting the operating speed of the forming machine for the production process. An operator information system is used to determine and output at least one item of operator information which makes it possible for the operator to control the operating speed with respect to at least one control criterion which represents the energy consumption required for production. | 09-08-2011 |
| 20110214467 | METHOD AND APPARATUS FOR PRODUCTION OF HELICAL SPRINGS BY SPRING WINDING - A method of producing helical springs by spring winding with a numerically controlled spring winding machine includes feeding a wire, controlled by an NC control program, through a feed device to a forming device of the spring winding machine, forming a helical spring from the wire with the forming device, measuring an actual geometry of the helical spring to obtain actual spring data, comparing the actual spring data with nominal spring data to determine discrepancy data which represents a discrepancy between an actual geometry and a predetermined nominal geometry of the helical spring for at least one spring geometry parameter, analyzing the discrepancy data and producing correction data when discrepancies are outside selected predetermined tolerance limits, varying an actuating movement of at least a portion of the forming device on the basis of the correction data for producing a next helical spring, selecting a spring section, determining a correction value for an actuating movement of a portion of the forming device, which correction value influences a spring geometry parameter in the selected spring section, and correcting the NC control program based on the correction value. | 09-08-2011 |
| 20110192204 | METHOD AND APPARATUS FOR THE PRODUCTION OF A BENT PART - A method produces a bent part by two- or three-dimensional bending of an elongate workpiece, in particular a wire or tube, in a bending process wherein at least one portion of the workpiece is moved into an initial position in the region of engagement of a bending tool by one or more feed operations by the coordinated activation of the movements of driven machine axes of a bending machine numerically controlled by a control device and is formed by bending in at least one bending operation with the aid of a bending tool. The movements of the driven machine axes are generated according to a movement profile predeterminable by the control device of the bending machine and include at least one oscillation-relevant movement leading to an oscillation of the free end portion of the bent part. During an oscillation-relevant movement, a compensating movement, reducing the generation of oscillation and/or damping the oscillation, a machine axis is generated in at least one compensation time interval. | 08-11-2011 |
