Abstract: A three-dimensional stereoscopic diagram creator creates a three-dimensional stereoscopic diagram including a desired bending angle based on graphic information of a product. A major dimension displayer displays a major dimension, tolerance and the like with respect to the three-dimensional stereoscopic diagram. On the other hand, a test piece displayer displays a test piece of the same material proposed for use as the material used for producing the product. The test piece displayer carries out trial bending on the test piece. A bending angle after a bending load is removed is measured by a bending angle measuring device. A spring back amount setter calculates a spring back amount from a difference in bending angle between before and after the load is removed. A stroke calculator calculates a stroke value relative to the desired bending angle considering the obtained spring back amount. Actual bending is performed on a product piece using the calculated stroke value.

Abstract: A bending press system provided with a bending press (1) with at least one bending station to mount a plurality of divided tools and, tool housing devices (65, 123) to house divided metals to be used on the bonding press and, tool exchange devices (61, 143) which mount said divided tools on the bending station, in which are provided a first memory means (403) which stores housed positions of each divided tool housed in the housing devices and a second memory means (405) which stores the bending line length of the bent part, the flange length and the bending angle of the bent product and, a first computation means (407) which, basted on the bending line length, flange length, bending angle, computes the tool (cross section shape) type and the length of the bending station, and a second computation means (409) which, based on the tool type and length of the bending station computes the arrangement of each divided tool on the bending station, and an NC control means (411) which controls the tool exchange device

Abstract: A numerical control device for a bending machine includes a keyboard, a memory and a processor. The memory stores one or more groups of data, each containing bending conditions, a bend angle and at least one penetration depth. The memory further stores program instructions for searching whether data input with the keyboard is stored in the memory, in a same group of data, and that sends a signal to the bending machine so that the bending machine peforms bending according to the penetration depth included in the group of data. The processor that executes said program instructions.

Abstract: A support medium is capable of being read by a numerical control system of a bending machine. The support medium stores program instructions for searching, in a memory region storing at least one group of data, each containing bending conditions, a bend angle and at least one penetration depth, whether input data including a desired bend angle and bending conditions are stored in the memory region, in a same group of data. The support medium sends a signal to the bending machine so that the bending machine executes a bending according to the penetration depth included in the same group of data.

Abstract: A method of editing an assembly with CAD includes selecting, through navigation, a first element of a first part among parts displayed on a CAD screen, the parts being made of sheet metal and being assembled into the assembly, the navigation automatically selecting an element of a part under a cursor as the cursor is moved on the CAD screen, dragging the first part including the first element with the cursor in one of horizontal and perpendicular directions relative to the first element, selecting, through navigation, a second element of a second part among the parts displayed on the CAD screen, and attaching the first element of the first part to the second element of the second part.

Abstract: A sheet metal follower for a bending press that has a bottom fixed table carrying a bending matrix on its top face. The follower is of the type comprising in particular pivot means for pivoting the follower table about a pivot shaft, and means suitable for moving the follower table in horizontal displacement relative to its support structure and perpendicularly to the pivot shaft, the active length of the pivot means being variable between a fixed hinge on the support structure and a moving hinge on the follower table, and the moving hinge being suitable for sliding along said table in a direction perpendicular to the pivot shaft of said table.

Abstract: In a rotary servo valve (1) provided with at least two kinds of pump port (33, 39) for high and low pressures, a spool (11) that is free to rotate and free to reciprocate linearly is installed into a spool guide hole (7) of the valve main body (9), a servo motor (15) that rotates and drives the spool and a linear type actuator (13) that reciprocatedly travels are disposed, and the pump ports are selectively changed over by the reciprocation of the spool, and cylinder ports are selectively changed over by the rotation and at the same time the flow rate is controlled.

Abstract: The present invention relates to a device for adjusting the height of a plurality of tool carriers connected to a top panel of a bending press, each tool carrier having a tool spacer, the adjustment device comprising, for each tool carrier, an adjustment wedge interposed between the square of the top panel and the top face of the tool spacer associated with said wedge. According to the invention, the ends of each wedge include engagement mechanism to enable a wedge associated with a tool spacer firstly to overlap at least part of the top face of an adjacent tool spacer, and secondly to engage reversibly with the wedge associated with said adjacent tool spacer so that the two adjacent tool spacers touch each other, and the square of the top panel is designed to bear against the engagement mechanism.

Abstract: A sheet metal follower associated with a press for bending a metal sheet, the follower being of the type comprising a pivot mechanism capable of causing the follower table to tilt, wherein a toothed wheel that is prevented from rotating is connected to a second toothed wheel by a cog belt, wherein the second toothed wheel pivots inside the cog belt, thereby causing the follower table to pivot about the rotary shaft, and wherein the upward and downward movements of the follower table are synchronized with its pivoting movement so that the plane in which the top support face of said table lies always includes the front edge of the matrix of the bending press.

Abstract: A bending method for bending both sides of a major dimension portion of a workpiece to form flanges. The method comprises measuring a dimension of one bent flange and setting an object L value in an other flange processing to be below a flange dimension by a predetermined value, if the measured value is over an object value. If the measured value is below the object value, setting the object L value in the other flange processing to be over the flange dimension by a predetermined value. Bending is performed with the set object L value.

Abstract: This invention provides a mixing chamber that utilizes several tined cylinders to convey materials through the mixing chamber for applying liquid additives to the materials. Each of the tined cylinders includes a number of spring biased tines extending from the surface of the cylinder. The tined cylinders are arranged within the mixing chamber such that, as the tined cylinders rotate about an axis, the spring biased tines engage the materials within the mixing chamber and “sweep” them along towards a discharge opening of the mixing chamber. As the materials are conveyed through the mixing chamber, an additive liquid, typically containing various chemicals, colorants, dies, and/or paints, is sprayed onto the materials. In this manner, liquid additives are applied to materials more evenly and more thoroughly, resulting in a more consistent finished product.

Abstract: A support medium is capable of being read by a numerical control system of a bending machine. The support medium stores program instructions for searching, in a memory region storing at least one group of data, each containing bending conditions, a bend angle and at least one penetration depth, whether input data including a desired bend angle and bending conditions are stored in the memory region, in a same group of data. The support medium sends a signal to the bending machine so that the bending machine executes a bending according to the penetration depth included in the same group of data.

Abstract: A numerical control device for a bending machine includes a keyboard, a memory and a processor. The memory stores one or more groups of data, each containing bending conditions, a bend angle and at least one penetration depth. The memory further stores program instructions for searching whether data input with the keyboard is stored in the memory, in a same group of data, and that sends a signal to the bending machine so that the bending machine peforms bending according to the penetration depth included in the group of data. The processor that executes said program instructions.

Abstract: An apparatus and method are disclosed for transferring part data, such as sheet metal part data, between computer-based application or CAD environments and for editing such part data. The application environments may include a 2-D CAD program environment and an object oriented bend model program environment. An interface is provided through which a 2-D CAD system may access data from the object oriented bend model system and by which data may be transferred between the systems to permit editing and updating of the part model within and from both applications. The interface may be implemented through a library or set of application program interface (API) functions and a message-based protocol (such as dynamic data exchange (DDE)) to facilitate the exchange of sheet metal part data. Various editing capabilities or tools may also be provided to enable, for example, the attachment of faces of the part or the shifting of one face relative to another face of the part.

Abstract: The numeral control device for a bending machine comprises means for inputting, as input data, a desired bend angle and bending conditions or criteria, means for storing groups of data, each containing bending conditions, a bend angle and a penetration depth, and means for searching whether the input data is stored in the memory means, in the same group of data. Moreover, means are provided for transmitting a signal representative of a penetration depth included in the group of data stored in the memory means, or for transmitting a signal for controlling the bending machine according to this penetration depth.

Abstract: A method is provided for managing data files, which reside on a computer network, relating to sheet metal part production. The method includes the steps of creating an identifier for a sheet metal part, linking the identifier with all the data files relating to the production of the sheet metal part, and selecting multiple linked data files in accordance with predetermined criteria. Consequently, when the identifier is operated on, the selected linked data files are substantially simultaneously subject to the same operation. The creating may include obtaining a sheet metal part name, determining a virtual folder hierarchy, and concatenating the virtual folder hierarchy and the sheet metal part name. All identifiers are stored in a single directory. The method may also include storing an index that includes a virtual folder hierarchy, and updating the index after every successful operation. The method may also include connecting to a server that is storing the data files.

Abstract: The present invention provides a band saw blade 1 which has less difference in cut areas of workpieces with small diameters and cut areas of workpieces with large diameters, and is capable of weakening the cutting resistance and preventing unintentional bending of a cutting line and noise generation when a workpiece, which cannot easily be cut, is cut. The band saw blade 1 has, on the back surface 5 of a body 3 thereof, a wavy back surface 5 which is changed periodically or irregularly. A plurality of imaginary curves L1,L2 running parallel to the wavy undulation provided for the back surface 5 are formed opposite to the back surface. Moreover, a plurality of saw teeth 2,4,6,8,10 having tooth tips which substantially describe the imaginary curves L1,L2 are formed. Thus, constant areas can be cut by the band saw blade 1 regardless of the diameter of the workpieces required to be cut. Moreover, the cutting resistance can be weakened, and unintentional bending and noise can be prevented.

Abstract: An operator can recognize the operating state of a plate material processing machine, such as the position state of a positioning pin used in positioning of a work piece in a predetermined position and the operating state of a work clamping device for gripping the work piece, on a display unit, by displaying the operating state in the form of an image of the machine in such a manner that it is intuitively easy, for a beginner, to understand. Further, the present position of a movable member selected as a moving object is displayed on the display screen of the display unit in a form of a relative coordinate covering a moving range of the movable member and a pointer representing the position of the movable member arranged at the relative coordinate.

Abstract: An apparatus for proposing bending sequences and bending tools for a metal plate part includes system for storing a development plan of the metal plate part; system for detecting a plurality of bending sequence proposals which make it possible to manufacture the metal plate part based on the development plan, and bending tool proposals used in each bending process of each bending sequence proposal; and system for displaying the plurality of bending sequence proposals. Such display includes information showing the stage numbers in each bending sequence proposal.

Abstract: An intelligent sheet metal bending system is disclosed, having a cooperative generative planning system. A planning module interacts with several expert modules to develop a bending plan. The planning module utilizes a state-space search algorithm. Computerized methods are provided for selecting a robot gripper and a repo gripper, and for determining the optimal placement of such grippers as they are holding a workpiece being formed by the bending apparatus. Computerized methods are provided for selecting tooling to be used by the bending apparatus, and for determining a tooling stage layout. An operations planning method is provided which allows the bending apparatus to be set up concurrently while time-consuming calculations, such as motion planning, are performed. An additional method or system is provided for positioning tooling stages by using a backstage guide member which guides placement of a tooling stage along the die rail of the bending apparatus.