摘要:
A method for milling a cutout using a milling cutter in a workpiece is provided. A longitudinal axis of the milling cutter is positioned in a first orientation relative to the workpiece to contact a first side of the workpiece. An enveloping cylindrical surface of the milling cutter is then used to cut a cutout which has a plurality of peripheral edges and rounded corners. The milling cutter is then placed in a second orientation which is angled relative to the first orientation. Thereafter, the enveloping cylindrical surface and an enveloping axial surface of the milling cutter are used to further cut the rounded corners of the cutout to form sharp corners.
摘要:
The invention relates in first instance to a nut having a first part (11) which has a first through opening (O1), and having a second part (12) which has a opening (O2) having an opening contour, the parts (11, 12) being connected so as to be rotatable about a rotational axis (A) which passes through the openings (O1, O2), and the openings (O1, O2) being aligned with one another, in addition, the first opening (O1) on its inner face having a profile which extends in the peripheral direction and which is interrupted in the peripheral direction. In order to provide a nut which is quickly mountable on a threaded bolt, and which has a simple design that allows greater security against the nut coming off the threaded bolt, it is proposed that the opening contour of the second opening is non-circular. The invention further relates to a combination of a bolt (4) having a cross-sectional area with a nut (10).
摘要:
A hydraulic pressing unit includes a hydraulic pump, supply and hydraulic chambers, moving and stationary parts, a restoring spring, and a return valve provided within or attached to a housing. The moving part is displaced from a starting position into a pressing position as a result of filling the hydraulic chamber with a hydraulic medium from the supply chamber by using the hydraulic pump. The return valve is automatically displaced into an open position as a result of a hydraulic pressure corresponding to the pressing position, and the restoring spring moves the moving part. A piston acts on the flow of the hydraulic medium and lowers the pressure such that the return valve is displaced into the closed position.
摘要:
A hydraulic press unit has a fixed part and a movable part. The movable part is moved relative to the fixed part by a hydraulic piston and is moved back into a starting position by a return spring. In addition, the return motion is actuatable as a function of a predetermined applied pressure by activation of a return valve. A control valve is provided which, in addition to the return valve, opens a hydraulic-medium outlet when in its open state and has a hydraulic-medium inflow side and a hydraulic-medium outflow side. In order to configure the hydraulic press unit, when the return valve opens, the control valve is acted on by the pressure of the returning hydraulic medium on the inflow and outflow sides, the pressure being lower on the inflow side due to throttling.
摘要:
A hydraulic press unit has a fixed part and a movable part. The movable part is moved relative to the fixed part by a hydraulic piston and is moved back into a starting position by a return spring. In addition, the return motion is actuatable as a function of a predetermined applied pressure by activation of a return valve. A control valve is provided which, in addition to the return valve, opens a hydraulic-medium outlet when in its open state and has a hydraulic-medium inflow side and a hydraulic-medium outflow side. In order to configure the hydraulic press unit, when the return valve opens, the control valve is acted on by the pressure of the returning hydraulic medium on the inflow and outflow sides, the pressure being lower on the inflow side due to throttling.
摘要:
An insulating covering is provided for a pressing jaw of a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables. The insulating covering includes a pair of legs having a substantially c-shaped cross-sectional configuration, and an articulation portion provided between the legs.
摘要:
An insulating covering is provided for a pressing jaw of a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables. The insulating covering includes a pair of legs having a substantially c-shaped cross-sectional configuration, and an articulation portion provided between the legs.
摘要:
The invention relates to a piston pump (1) for delivering a fluid at low pressure and at a higher pressure, a higher delivery volume being provided in one pumping cycle at low pressure than at a higher pressure, having a low-pressure delivery piston (4), which is moved inside a pump cylinder (2) and acts upon a pressure chamber (7) under prestress into its delivery end position, a high-pressure delivery piston (11), an inlet valve (9) and an outlet valve (9, 10), a fluid delivery path (5) furthermore being provided between the inlet valve (9) and the outlet valve (10), and the low-pressure delivery piston (4) being able to be moved back counter to its prestress into a delivery starting position, and proposes, to achieve effective delivery at low pressure and at a higher pressure with the simplest possible construction, that the fluid delivery path (5) passes through the low-pressure delivery piston (4), that a valve (6) is provided in the low-pressure delivery piston (4), which valve shuts in the case of movement into the delivery starting position, that the high-pressure delivery piston (11) and the low-pressure delivery piston (4) operate in a common pressure chamber (7), and that the high-pressure delivery piston (11) moves the low-pressure delivery piston (4) counter to its prestress.
摘要:
In a torque-switched clutch between an input shaft and an output shaft, the clutch transferring into a release position from a positive-locking connection when a limiting torque is reached, at least one positive-locking element is connected to one of the shafts. The positive-locking element interacts with a positive-locking receiver of the other shaft. The positive-locking element is movable against a force out of a coupling position into a release position in a non-destructive manner. The positive-locking element is of latch type design and is mounted on the one shaft so as to be pivotable relative to that shaft for movement between a latch locking position and a latch overrun position.