Abstract:
A shower head includes a shell, a positioning base, a plurality of water spraying heads, a plastic piece, a metal cover and a handle set. The positioning base has a flat board and a hanging base having an elongated hole at center thereof, and a plurality of hanging slots are circularly disposed at the periphery of the flat board. The water spraying head engages with several hanging slots so as to evenly circularly dispose at the flat board. The plastic piece is formed by injection molding and a through hole is formed at center thereof. The metal cover is made by copper, surface of which has a plurality of cover through holes. The handle set has a control unit, and a connecting rod eccentrically protrudes out from one end of the control unit, and the other end is provided for a nut to lock and engage with a movable handle.
Abstract:
A hinge arm having a hinge pin hole having a worn bore, for example a hinge arm of a hinge assembly of an access door on a gas turbine engine, is repaired by forming in the worn hinge arm a new hole with a keyway extending outwardly from the new hole. A keyed bushing is provided having a cylindrical body having a central bore extending axially therethrough and a key extending outwardly from the cylindrical hole. The keyed bushing is inserted into the new hole and keyway formed in the hinge arm thereby preventing rotation of the bushing relative to the hinge arm.
Abstract:
A core drilling system is disclosed herein in which a torque tube has a groove or keyway which receives a rotating wheel or key to prevent a transmission box and motor from rotating during drilling operation. As such, the operator does not need to hold a stabilizing arm to resist counter rotational forces during the drilling process. The operator may focus on the hole to be cut in a substrate. Additionally, a torque tube stabilizing leg assembly may be secured to the free distal end portion of the torque tube.
Abstract:
A surgical assembly has a first section having a first hole with a smallest diameter and a second section having a threaded second hole with a minor thread diameter smaller than the smallest diameter of the first hole. The first hole encloses a center axis of the second hole and a clearance is provided between the first section and the second section. The assembly includes a screw member having a length for engaging the first hole and the second hole so as to bridge the clearance. The screw member has a first portion with a largest outer diameter smaller than or equal to the smallest diameter of the first hole, and a threaded second portion axially spaced from the first portion and configured to threadedly engage the second hole. A major thread diameter of the second portion is larger than the smallest diameter of the first hole.
Abstract:
A lateral motion inhibitor assembly, a drill press incorporating the inhibitor and a method of using the same. The inhibitor assembly includes a clamping assembly which fixedly engages a vertical support column of the drill press, a connector assembly which fixedly engages a horizontally-oriented drill press table; and a plate assembly which extends between and is pivotally secured to both the clamping and connector assemblies. The plate assembly includes a first plate and second plate that are pivotally secured together. The inhibitor assembly restrains the table and drill against lateral movement relative to each other when the table's vertical position on the support column is changed. The inhibitor assembly ensures that both an initial drill hole and a subsequent drill hole are drilled in substantially the same location on a workpiece supported on the table.
Abstract:
A processing method for variable drilling-depth, deep-hole chip breaking and removal, comprising: assigning a deep-hole drilling variable value; if the value is correct, drilling a first hole depth; otherwise, alarming and reassigning the value; determining whether the first hole depth is greater than a terminal drilling depth and whether the first hole depth is greater than the defined chip breaking depth; if yes, processing chip breaking and drilling to the currently designated drilling depth and then returning to a safe position for chip removal; determining whether the currently designated drilling depth is greater than a smallest drilling depth, if yes, decreasing the drilling depth progressively according to a designated drilling depth proportion, otherwise, designating the currently designated drilling depth as a new smallest drilling depth and calculating the coordinate of the next drilling depth. Drilling deep hole in accordance with this method can improve efficiency and guarantee drilling safety.
Abstract:
A machine for boring spaced, axially-aligned surfaces of a part includes a frame and a boring apparatus associated with the frame. The boring apparatus is configured to bore at least one surface of the part and includes a boring bar associated with a cutting tool configured to rotate about a longitudinal axis of the boring bar. The machine further includes a mounting fixture associated with the frame configured to mount the part in a fixed relationship with respect to the frame. The machine also includes an alignment assembly including at least one pair of plates. At least one of the plates of the pair of plates is configured to pivot such that the longitudinal axis of the boring bar is aligned with an axis defined by the axially-aligned surfaces of the part.
Abstract:
The cutting method of steel for machine structural use includes: forming a mist by mixing a cutting fluid supplied at a supply rate of 0.01 ml/hour to 200 ml/hour and an oxidizing gas containing, by volume %, 21% to 50% of oxygen; and cutting the steel for machine structural use while the mist is blown on the cutting edge surface of a tool and the surface of the steel for machine structural use, wherein the steel for machine structural use includes, by mass %: C: 0.01% to 1.2%, Si: 0.005% to 3.0%, Mn: 0.05% to 3.0%, P: 0.001% to 0.2%, S: 0.001% to 0.35%, N: 0.002% to 0.035%, Al: 0.05% to 1.0%, and the balance consisting of Fe and inevitable impurities in which O is limited to 0.003% or less, and the amount of Al [Al %] and the amount of N [N %] satisfy [Al %]−(27/14)×[N %]≧0.05.
Abstract:
A device (1) for assembling panels using riveting which includes a riveting system (6) together with a drilling system (4). According to the invention, the device includes components for setting the riveting head (38) in motion relative to a carriage (34) of the riveting system, where these components are designed to be capable of moving this riveting head (38) between an at-rest position in which the drilling head axis and the riveting head axis (16, 40) are distinct, and a working position in which the same axes (16, 40) coincide.
Abstract:
A drill assembly and method for reducing plunge of a drill bit upon breaking through a workpiece. The drill assembly contains a motor to advance and retract the drill bit, the motor is controlled by a control unit in a feedback loop to achieve a desired stiffness. The control unit determines when the drill bit breaks through the workpiece and stops or retracts the movement of the drill bit.