摘要:
A device for oiling the fresh air and de-oiling the back flowing discharge air of a compressed air operable cylinder piston system having a reciprocatory piston comprising a housing which has a compressed air inlet and outlet and which has provided therein a control valve for the quantity of oil to be added to the compressed air to be passed through the compressed air outlet to the compressed air operable cylinder piston system. The compressed air outlet is through a tangential bore connected to an annular twist passage located above an annular chamber surrounding an inner chamber which has arranged therein a filter insert and communicates with the inlet through a bore. A check valve in the bore fully opens on fresh air passing from the air inlet to the outlet and is partially closable by the back flowing discharge air from the system.
摘要:
A clamping chuck for machine tools with exchangeable clamping jaws of which at least one clamping jaw for purposes of chucking a work piece is radially adjustable by means of a clamping mechanism, said clamping jaws being shiftable by a swivel mechanism. The swivel mechanism permits pivotal movement about a plurality of axes by a predetermined angle for machining the workpiece along said axes. The clamping jaws are provided with prism-shaped clamping surfaces for receiving clamping webs provided on the respective workpiece, said clamping surfaces forming the four corners of an imaginary tetrahedron-shaped three-dimensional body.
摘要:
The specification discloses a chuck having work axis on which the body is rotatable. The chuck has opposed workpiece engaging jaws therein rotatable about a common axis perpendicular to and intersecting the workpiece axis. One of the jaws is movable toward and away from the other for clamping and releasing workpieces, while shifting means are provided for the other jaw for shifting it angularly about the common axis of rotation of the jaws to move a workpiece in the chuck into predetermined machining positions and also into a loading and unloading position.
摘要:
A power operated clamping device for machine tools in which a chuck body having radially moveable jaws is mounted on one end of a spindle while an oscillatory fluid motor is mounted on the other end of the spindle. Actuating blocks on the chuck body are connected to the motor and engage the jaws and move the jaws positively when the motor is actuated. When the motor is turned beyond a certain limit, the blocks disengage from the jaws while simultaneously a control system is actuated to prevent rotation of the spindle.
摘要:
The specification discloses a chuck rotatable on a work axis and having workpiece-engaging jaws rotatable on an axis extending perpendicular to the work axis. A disc is connected to rotate with the jaws and protrudes from the side of the chuck body and has elements in the form of grooves or cams thereon facing away from the chuck body. These elements occupy respective axial planes of the chuck body in respective rotated positions of the disc and are adapted for cooperation with feeler members of a control device. A feeler member is located in each said axial plane and is movable from a retracted position away from the chuck body to an advanced position wherein one end is in the path of movement of a respective element of said disc in the respective rotated position of the disc. The present invention concerns a rotating chuck which is intended particularly for turning machines and is designed as displaceable or rotatable chuck with clamping jaws which are adapted to be controlled during the rotation of the chuck so as to be displaced transverse to the axis of the chuck body and/or to be pivoted about an axis different from the axis of rotation of the chuck.
摘要:
AN INDEXING HEAD FOR TOOLS, WORKPIECES, OR ABUTMENTS PRIMARILY FOR USE ON MACHINE TOOLS AND INCLUDING A MAIN BODY HAVING A BORE IN WHICH A BEARER SPINDLE IS ROTATABLY MOUNTED AND CAPABLE OF BEING LOCKED IN VARIOUS SPECIFIC ANGULAR POSITIONS. TWO PUSH RODS, ONE BEHIND THE OTHER AND IN TWO PLANES AT RIGHT ANGLES TO THE LONGITUDINAL CENTER LINE OF THE SPINDLE, ARE MOVABLE UNDER FLUID PRESSURE IN OPPOSITE DIRECTIONS. THE PUSH RODS HAVE END FACES AT AN ACUTE ANGLE TO THEIR LONGITUDINAL CENTER LINES AND EACH ACTING ON THE CORNERS AND SIDE FACES OF POLYGONAL SECTIONS OF SAID BEARER SPINDLE. SIDE FACES OF THE POLYGONAL SPINDLE SECTIONS ARE OFFSET FROM EACH OTHER BY ONE-HALF OF THE INDEXING ANGLE.