摘要:
A machine tool is equipped with a fully articulatable crossbeam arranged between a pair of vertical columns. The crossbeam carries a tool carriage or saddle which is provided with a driven cutting tool element. The cutting tool element engages a workpiece clamped on a table between the columns and below the crossbeam. The crossbeam may articulate in mutually perpendicular planes, independently thereof. With this feature, the machine tool is flexible and versatile and may be used by semi-skilled operators with a minimum of training to perform a series of intricate operations easily and conveniently.
摘要:
A stabilization device for the stand of a drilling machine which comprises a casing secured to the rear of the stand and having a vertical stepped opening and a horizontal opening intersecting the vertical opening at right angles, a punch received in the casing for upward and downward movement and having a pointed projection extending downwardly from the lower end of the punch, a compression spring received in the casing to normally bias the punch downwardly and a spring loaded stop normally biased into the horizontal opening.
摘要:
Dismountable machining apparatus for use at different work site locations, and having base means releasably attachable to a workpiece, and having a collar including an opening having a predetermined central axis and having attachment means, drive housing means connecting releasably with the attachment means, and defining a central opening in registration with said central opening of said portions, so that the drive housing means may be assembled and disassembled from said base member at a work site, drive sleeve means in the drive housing incorporating a central bore, drive transmission means for the drive sleeve means, and adapted to be coupled to a power source for driving the drive sleeve, an auxiliary drive connected to the drive sleeve, and driven in unison therewith, a machining bar member slidably received within the drive sleeve whereby the machining bar member may be rotatably driven by the drive sleeve, and may be axially slid therein, and being releasable, a feed housing and a feed sleeve member for rotation therein, the feed sleeve member defining a central bore for the machining bar member therein, whereby the feed sleeve member rotates therewith, a feed connecting member extending to one side of the feed housing, a feed screw and a feed screw advancing mechanism coupled to the feed screw, and having a drive transmission coupled to the auxiliary drive.
摘要:
An attachment for a rotary drive machine of the type having a support stand and power tool means adapted to be mounted on the stand comprising an arm member disposed between and connecting the support stand to the power tool means. The arm member is rotatably secured at one longitudinal end to the support stand and is rotatably secured to and supports the power tool means at its other end. Locking means are provided for locking the arm member to the support stand in its adjusted rotated position while similar locking means are also provided for locking the arm member to the power tool means in its adjusted rotated position.
摘要:
This device for positioning movable member of machine-tools, notably spindles, in numerically controlled machines, especially those employed for machining relatively long workpieces such as sections of frameworks or the longitudinal girders or beams of vehicle chassis, comprises means for changing from one reference face to another for performing a machining operation in a selected area of said workpiece, means for memorizing the selected origins for performing a first machining operation and means permitting of truly following the contour of said workpiece.
摘要:
In producing spherical and polyhedral connectors for space frameworks from blanks a tapped through hole is first formed through the center of the blank. The blank is then engaged by its through hole in a clamping device that is rotatable along the axis of the through hole, the clamping device being mounted on an element that is rotatable on an axis at right angles to the axis of the through hole and which intersects the axis of the through hole at right angles. Tool means positioned adjacent the clamp to work on the blank engaged thereby operate along an axis disposed perpendicular to the first two mentioned axes, the tool means being operative to machine the blank at fixed spatial positions to which the blank is adjusted by movement about the first two axes, the tool means boring holes in the blank, machining flats around said holes at right angles to the holes and tapping the holes. Between these machining operations the tool means are moved relative to the clamping device and the connector blank about a further axis common to the tool means and the clamping device. The connector blank is then positioned to a new predetermined spatial position by the clamping device and the tool means produce another hole while the blank is maintained in the original clamping device by its through hole whereby a plurality of accurate spaced holes are produced in the connector blank.
摘要:
In producing spherical and polyhedral connectors for space frameworks from blanks a tapped through hole is first formed through the center of the blank. The blank is then engaged by its through hole in a clamping device that is rotatable along the axis of the through hole, the clamping device being mounted on an element that is rotatable on an axis at right angles to the axis of the through hole and which intersects the axis of the through hole at right angles. Tool means positioned adjacent the clamp to work on the blank engaged thereby operate along an axis disposed perpendicular to the first two mentioned axes, the tool means being operative to machine the blank at fixed spatial positions to which the blank is adjusted by movement about the first two axes, the tool means boring holes in the blank, machining flats around said holes at right angles to the holes and tapping the holes. Between these machining operations the tool means are moved relative to the clamping device and the connector blank about a further axis common to the tool means and the clamping device. The connector blank is then positioned to a new predetermined spatial position by the clamping device and the tool means produce another hole while the blank is maintained in the original clamping device by its through hole whereby a plurality of accurate spaced holes are produced in the connector blank.
摘要:
A finger hole in a bowling ball is contour-drilled by mounting a bowling ball on a carriage and moving the carriage along rails toward the drill which has a larger cutting head than shank. After the first portion of the bore is completed, carriage motion causes it to engage a template which moves it on a second path to further drill the hole in another direction. The drill can be angularly positioned to provide shank clearance and can be positioned so that the drilling is other than radial of the ball.
摘要:
A PORTABLE UPRIGHT BORING MILL COMPRISES A SPLIT HOLLOW CYLINDER BODY WHICH CAN BE ATTACHED TO THE SHAFT OF A WORKPIECE WHOSE FLANGE IS TO BE MACHINED BY BORING HOLES THEREIN. THE MILL IS MOUNTED ON THE WORKPIECE BY FITTING THE BODY ON THE SHAFT SO THAT IT SURROUNDS THE SAME AND THE BODY COMPRISES A SPINDLE HEAD FOR MACHINING THE HOLES IN THE FLANGE. THE BODY CAN BE MOVED ALONG THE WORKPIECE FLANGE BY MEANS OF A TURNING MECHANISM WHICH INCLUDES A DRIVE INSTALLED ON THE MILL BODY AND ENGAGED WITH A GEAR IN TURN ENGAGED WITH A TOOTHED RIM SECURED ON THE WORKPIECE FLANGE. THE BODY RESTS ON SUPPORTS WHICH ARE ARITCULATED TO CARRIAGES WHICH ROLL ON THE FLANGE FOR TRAVEL OF THE MILL THEREON.