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 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: 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: 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: 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: 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 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: This invention provides an integrated support system for supporting sheet metal machining adapted to store and reuse the know how of skilled machine operators and improve the quality of sheet metal products and the rate of operation of machine tools by shifting the arrangement operation from the actual machining phase to the design phase. An integrated support system for supporting sheet metal machining according to the invention is adapted to collect actual machining information obtained during the actual machining process on the machining site and site-specific attribute information that provide the basis for actual machining data and feed back the collected actual machining information and the site-specific attribute information to a sheet metal machining data storing means containing machining information for controlling the machine tools and machining support information relating to the machining information.

Abstract: A punch holder apparatus includes: a punch holder formed with a punch mounting hole and with an inspection hole in a direction perpendicular to a longitudinal direction of the punch holder; an engagement piece to be mounted in the inspection hole; a lock piece formed with a receiving allowable concave section to receive the engagement piece; and pressurizing means for pressurizing the lock piece so that an engagement piece pushing-out holding section provided to the lock piece is normally located in a position corresponding to the engagement piece. In the above construction, the lock piece is provided so as to be capable of moving in a direction parallel to the longitudinal direction of the punch holder. Furthermore, the receiving allowable concave section receives the engagement piece which is moved in the direction perpendicular to the longitudinal direction of the punch holder.

Abstract: A saw blade is constituted with a unset tooth, a plurality of left-set teeth and a plurality of right-set teeth. In the construction, the saw blade has the unset tooth, a plurality of left-set teeth and a plurality of right-set teeth as one group. A plurality of set widths of the plurality of set teeth are formed in the saw blade. A relief angle of a tip of the unset tooth is equal to or greater than a relief angle of a tip of the set tooth having the smallest set width. Furthermore, the relief angle of a tip becomes small in accordance that the set width becomes greater.

Abstract: The present invention relates to laser devices with increased cooling capability by means of largely extended cooling surfaces contacting the laser active medium. According to the present invention there is provided a laser device comprising a large active volume in conjunction with a compact structure of the device and outputting single mode radiation. The laser device according to the present invention comprises the following features. A laser active medium, an optical resonator system defining an optical axis, exciting means for exciting said laser active medium and enabling a stimulated emission of radiation of said laser active medium, and cooling means, having first and second cooling elements arranged in spaced opposing relationship with surfaces facing each other, wherein said laser active medium is provided between said cooling elements along said optical axis.

Abstract: Sheet metal working system includes a housing rack provided with a plurality of shelves for housing pallets, an elevator provided on a side of the housing rack, and a pallet holder located on a bottom shelf of the housing rack for temporarily holding a pallet transported by pallet transporter. Also provided is a workpiece separator located above the pallet holder, a workpiece table located adjacently to the housing rack, a sheet working machine and a workpiece piler arranged so as to sandwich the workpiece table, and a loader that moves among the workpiece table, the machine and the workpiece piler.

Abstract: A method for cutting a window in a sheet of material that is held in a vertical plane. The cut is obtained by moving a cutting head that emits a fluid along a closed cutting run (14) that defines the outline of a piece of waste material (18). The run (14) returns to its starting point situated above a horizontal axis (22) passing through the barycenter (20) of the piece of waste material (18) and preferably situated in the vicinity of a vertical (24) passing through the barycenter.

Abstract: A support system for a laser beam machine is provided which includes an inferred value production unit which produces an inferred value for each of a plurality of processing condition parameters indicative of conditions under which laser processing is performed, by use of an artificial intelligence function, and a display unit which displays the inferred value produced by the inferred value production unit. The support system further includes an input unit which allows an operator to enter a plurality of evaluation parameters that represent results of evaluation on a current processing state.

Abstract: A punch guiding apparatus includes: a cylindrical punch guide to be vertically movably supported into a punch holder; a stripper plate is detachably mounted to a forward end portion of the cylindrical punch guide; and a ring-shaped fixture. In the construction, the fixture has a ring shape that both ends are brought into contact with or close to each other. Furthermore, the fixture has a non-circular shape in which it has a plurality of elastically deformed portions which are urged and come in contact with an inner peripheral surface of the punch guide so as to be enlarged.

Abstract: Equipment for the laser cutting of metal sheets is to hold the metal sheets in a vertical plans by means of a laser-focusing head (10) which is movable in a vertical plans relative to the metal sheet (12). The equipment includes an abutment member (18) carried by the focusing head (10) and intended to bear against that face (20) of the sheet (12) facing the focusing head (10).

Abstract: An apparatus prepares data for manufacturing a product or a part with a predetermined shape by using a bending press provided with detachable tools. The apparatus includes a computer memory storing bending operation support information obtained after successfully completing bending operations. The bending operation support information supports an operator later performing bending operations on a workpiece while manufacturing the product or part. The bending operation support information is one of dependent on and associated with the completed bending operations.

Abstract: A dimensioning system is provided for a computer generated model of a sheet metal part including a plurality of entities. The dimensioning system comprises a model display, an indicator, a selector, a dimension defining system, and a dimension display. The model display displays a representation of the model on a display screen. The indicator indicates to a user candidate entities of the model, in response to user events, that may be selected. The selector selects two entities of the model, based on an indicated candidate entity. The dimension defining system defines each dimension associated with the selected entities of the model. The dimension display displays dimension information on the display screen based on the defined dimension. A repositioning system is also provided for a computer generated model of a sheet metal part represented on a display screen. The sheet metal part has associated dimensions displayed along with the sheet metal part on the display screen.