Abstract: 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 differ

Abstract: A method of programming control of a forming machine which has a plurality of controllable machine axes includes displaying an axis selection menu with graphical symbols for machine axes of the forming machine; receiving an input for selection of a machine axis to be programmed; displaying an axial movement menu containing options for the input of movement parameters for definition of a course of movement of the axial movement of the selected machine axis; receiving inputs for definition of movement parameters; displaying an axial movement coordination menu containing options for input of coordination parameters for definition of a coordination of courses of movement of the axial movements of machine axes; receiving inputs for definition of values for coordination parameters.

Abstract: 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 f

Abstract: A method of grinding spring ends of helical compression springs is carried out using a numerically controlled spring end grinding machine having a grinding unit, a loading unit and a control unit that controls the loading unit and the grinding unit. The grinding unit has a pair of grinding wheels including two rotatable grinding wheels between which is formed a grinding space. The loading unit has at least one loading plate substantially rotatable axially parallel to the grinding wheels and has a plurality of out-of-axis spring receptacles, each to receive a helical compression spring.

Abstract: A spring winding machine that manufactures helical springs by spring winding includes a feed device that feeds wire to a shaping device, wherein the shaping device has a winding tool and a pitch die; a cutting device that separates a finished helical spring from the wire after termination of shaping, wherein the cutting device has a cutting tool which, by a drive system, can be moved along a predefinable closed trajectory; a control device that controls the feed device, the shaping device and the cutting device on the basis of an NC control program; and a programmable trajectory-setting system that sets the shape and/or position of the trajectory to be passed through by the cutting tool, wherein a trajectory which is mirror-symmetrical with respect to a plane of symmetry and has a predefinable ratio of height to width.

Abstract: A method of manufacturing springs by a numerically controlled spring machine includes feeding a wire in a feed direction to a forming device of the spring winding machine by a feed device under control of a control program forming the wire into a spring with the aid of tools of the forming device in a forming operation, the forming device having a mandrel with a mandrel axis oriented at right angles to the feed direction, and windings of the spring surrounding the mandrel during the forming operation, and adjusting a position and/or orientation of the feed device with the aid of a controllable machine axis during the forming.

Abstract: A method of programming control of a forming machine which has a plurality of controllable machine axes includes displaying an axis selection menu with graphical symbols for machine axes of the forming machine; receiving an input for selection of a machine axis to be programmed; displaying an axial movement menu containing options for the input of movement parameters for definition of a course of movement of the axial movement of the selected machine axis; receiving inputs for definition of movement parameters; displaying an axial movement coordination menu containing options for input of coordination parameters for definition of a coordination of courses of movement of the axial movements of machine axes; receiving inputs for definition of values for coordination parameters.

Abstract: 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.

Abstract: 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 differ

Abstract: 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.

Abstract: 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.

Abstract: 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 f

Abstract: 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.

Abstract: 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.