Abstract: An object is to provide a manufacturing method of a compressor impeller which produces a small post-cutting residual strain. A compressor impeller is formed by cutting a workpiece. The manufacturing method of a compressor impeller includes: a workpiece-fixing step of fixing a workpiece W on the supporting pedestal 3; and a cutting step of cutting inter-vane regions R and forming a plurality of vane sections B1, B2 and so on with intervals between one another in the circumferential direction of the workpiece W while pressing the workpiece. The cutting step includes selecting one of following steps. In the first cutting step, when successively cutting the plurality of inter-vane regions R1, R2 and so on disposed continuously in the circumferential direction of the workpiece, adjacent one of the inter-vane regions is avoided as often as possible.

Abstract: A pulse generation means that generates a pulse each time an XY movable member moves linearly by a certain amount relative to a base is provided. A workpiece and a light and dark pattern member are provided on the base. A tool, a light and dark pattern scanning sensor that scans the light and dark pattern and outputs a scanning signal, and a cutting means that moves the tool with respect to the workpiece in a cutting depth direction, orthogonal to the linear motion direction, are provided on the XY movable member. While the XY movable member moves relative to the base, the tool is moved by the cutting means in accordance with a logical AND operation performed on the scanning signal from the light and dark pattern scanning sensor and the pulse from the pulse generation means to perform machining.

Abstract: An apparatus for an attachment for a cut-out tool 16 whereby the cut-out tool is used to cut an identical image of a molding prototype template 22 into a work piece. The attachment is comprised of a base platform 18 having means for mounting the prototype template 22 and means 52 for mounting and securing a work piece thereto. The attachment is further comprised of a movable platform 12 having means for engaging the base platform 18 and capable of linear movement relative to the base platform. Slidably attached at 32, 50 to the movable platform 12 is the saw mounting platform 14 capable of transverse linear movement relative to the movable platform with a handle 24 depending therefrom and a saw attachment means 20, 68 mounted thereon.

Abstract: A three-dimensional mirror-image duplicating carver for producing a three-dimensional mirror-image of a three-dimensional object. First and second platforms are rotatably connected to a frame about spaced apart parallel first and second axes, respectively, and also parallel to the base. The platforms rotate equal and in opposite directions only to effect repositioning. A three-dimensional object to be duplicated in mirror image is attached to and positioned centrally on the first platform while a carvable workpiece is attached to and positioned centrally on the second platform. A support member includes a stylus and a carving tool having a carving tip spaced from the stylus a distance equal to the distance between the first and second axes and lying in a plane perpendicular to said base.

Abstract: The cutter and the tracer of the machine tool are slaved together for movement along the three major axes, and for pivoting about two different axes. The cutter and the tracer can be pivoted together about an axis through the cutter and the axis. The cutter and the tracer can also be pivoted about a pair of parallel axes passing through the cutter and the tracer.

Abstract: The apparatus has a copying mechanism (1), which is mounted in a support fork (2) and comprises a feeler (17) and a toolholder (20). The copying mechanism (1) is supported on a support fork (2), which is arranged swivellably and displaceably on a foundation body. With the copying mechanism (1) is associated a rocker (3), which carries a pattern station (4) and a fabricated part station (5). On the stations (4, 5) are synchronously and rotatably mounted a pattern (24) and a fabricated part (25). Due to the fact that with the pattern (24) and the fabricated part (25) are associated two movement axes, namely axis (26) and the rocker swivel axis (23), it is possible to sense patterns having a random three-dimensional shape and corresponding fabricated parts can be copied.

Abstract: An apparatus and method for forming a workpiece or chair mat with cleats on the underside thereof, and with a marginal peripheral area void of cleats, and for trimming the edge of a generally planar workpiece. A rotatable work table is provided for positioning the workpiece. A router head includes an inclined router blade engageable with the edge of the workpiece to form a beveled ramp edge thereabout. A template is positioned between the workpiece and the work table, and the router head has a cam follower engageable with and movable along the edge of the template for guiding the router blade along the edge of the workpiece during rotation of the work table. A cooling medium is directed toward the area of engagement between the router blade and the edge of the workpiece. The depth of cut is controlled by a cam disk mounted on the bottom of the router head engageable with the top of the workpiece.

Abstract: A wood carving attachment that mounts onto a table saw provides a carriage for holding a pattern, and a workpiece that will be engaged by the circular saw blade to duplicate the pattern configuration on the workpiece. The pattern and workpiece are mounted on opposite ends of a carriage that pivots about an rocker axis generally parallel to the axis of rotation of the saw blade, and also is movable in direction along the axis and at the same time the pattern and the workpiece are both rotated about axes generally parallel to the rotational axis of the saw blade. A tracer wheel riding against the pattern will cause the carriage to be tilted about its rocker axis of the support as the pattern is moved along the rocker axis and rotated against the follower wheel so that by movement of the carriage the surface configuration of the pattern is duplicated by the saw blade engaging the workpiece.

Abstract: A router is coupled to a pair of pivotally connected arms for free swinging movement about a horizontal plane in a space between a template and a workpiece. The router has an upwardly extending guide pin that is engageable with the template and a downwardly extending cutting bit which is concentric to the guide pin and engageable with the workpiece below. The template is in parallel, opposed relationship to the workpiece such that as the guide pin is moved about the template, the cutting bit simultaneously mills the workpiece to produce the sign. In preferred forms, a mirror carried by the router reflects an image of the guide pin to the machine operator during engagement with the template, and the mirror is also located in disposition relative to the operator's line of sight toward the cutting bit such that both the bit and the guide pin may be simultaneously observed.

Abstract: A carving machine which has a tubular framework that allows easy attachment of one or more supplemental frames and additional carving spindles to the base frame. The length of the machine frame also can be extended very easily to accommodate longer workpieces. The carver includes individual motors driving the carving tools. The motors are mounted in housings provided with vacuum attachments for inducing a flow of cooling air for the individual motors. The housings also are sound deadened to reduce the noise level.

Abstract: A method of controlling an operation of a copy-cutting apparatus including a tracer for tracing automatically a pattern and a cutting gas torch interconnected to the tracer in a given relationship. Prior to the actual working, the tracer is manually moved with respect to the pattern along a given path and stores coordinates of operational points such as a piercing point, a copy start point, a copy end point, an intermediate point, a slow down point, etc. During the actual working the stored coordinates are read out to control the movement of the tracer in such a manner that until the tracer has reached a copy start point the copying apparatus is set in a position setting mode in which the tracer is moved under the control of the read out coordinates. After the tracer has reached the copy start point the copying apparatus is switched into a copying mode in which the movement of tracer along the pattern is controlled by detecting the pattern.

Abstract: A mechanism for duplicating an image includes a pantograph mechanism which is carried on a slide which may be selectively moved axially to position the pantograph. Carried on the pantograph is a cutting or marking device which may be readily interchanged. This device may be a standard rotating engraving cutter, a diamond drag engraving cutter, a laser cutting device, a heat producing device, a brush, a felt tip pen, or other apparatus.

Abstract: A carving machine which has universally movable multiple work spindles mounted on a frame, and movable along rails in a normal manner. The tracing station (the station which holds the pattern used in the carving operation) is located outboard of one lateral side of the rails, and outboard of the frame, so that a worker can easily trace on large patterns at the tracing station.

Abstract: A duplicating carving machine for the home workshop of the kind in which a guiding stylus and router are movable horizontally in straight line perpendicular paths and vertically in an arcuate path. Rigid construction of the machine permits manipulation of the router from a safely remote point and includes means for mounting masters and work pieces having a wide variety of shapes and sizes so as to be conveniently accessible to the stylus and router, means for independently locking the stylus and router against horizontal movement in either direction at any point, means for locking the stylus and router in various angular positions with respect to tangency with their arcuate path of travel, and means for adjusting the spacing of the stylus and router.

Abstract: A tracing milling machine having a conventional tracing milling machine controller for controlling a servo movement of the machine is provided with a novel tracing command controller for automatically generating tracing commands to be supplied to the tracing milling machine controller for the purpose of enhancing automation of the tracing milling operation of the machine. The tracing milling machine is further provided with an automatic tool changer, for enabling an automatic tool change of a cutting tool attached to a spindle of the machine during the automated tracing milling operation of the machine.

Abstract: Copying-Milling apparatus comprising detectors which detect amounts of displacement of a tracer, a drive device for adjustment which subjects a cutter or the tracer to positioning separately from a motion concerned with the detectors, and control devices which actuate the drive device for adjustment by amounts corresponding to the detection values, so that the motion at the copying-milling is controlled into a motion with a required amount of expansion or contraction taken into consideration.