Abstract:
A pipe cutting apparatus includes a machine base having a first machine table slidably secured for moving with a pipe during the extrusion thereof. The apparatus includes a rotary base table with a cutting arrangement attached at a periphery thereof such that the cutting arrangement orbits about the pipe during cutting thereof. The cutting arrangement includes a cutting tool supported on a pivoting support arm. The support arm includes an independent powered gear drive train for pivoting the support arm to accommodate different sizes of pipe and to allow cutting. Preferably the cutting apparatus has a second slidable table to allow precision cutting of multiple cuts of the pipe while the pipe is clamped or held.
Abstract:
The invention relates to a method for effecting the advance movement of one or more tool supports that rotate around a rotationally symmetrical part, and to a corresponding feed device. The supports are supported on the part in a manner that permits them to be fed via a leadscrew, and are rotationally driven, as a whole, by a main motor, mounted in a stationary manner, via a main transmission drive which is connected in a fixed manner to the support or to the tool support(s). Prior art rotary machining machines of this type operate with a large rotating mass. It would also be desirable to be able to configure the machine such that it can be separated for placement on the part. To this end, the invention provides that the advance movement of each leadscrew is effected by the relative movement, with regard to the main transmission drive, of another, motor-driven transmission drive that interacts with the leadscrew. The relative movement is effected by means of a feed device with which each leadscrew (5) can be driven by another transmission drive and this drive can be driven by a stationary support motor (13). The housing of said support motor is rotatably mounted and is mechanically coupled to the main motor (8) such that it can be rotationally driven by the same in a synchronous manner. The invention is provided primarily for use in the on-site machining of large shafts.
Abstract:
Pipe machining apparatuses and methods of operating are provided. In one aspect, a pipe machining apparatus includes an advancement mechanism coupled to a frame and adapted to move relative to the frame between a first position, in which the advancement mechanism is in a travel path of an advancement member and is adapted to be engaged by the advancement member to advance a tool, and a second position, in which the advancement mechanism is positioned out of the travel path of the advancement member and is not adapted to be engaged by the advancement member. In another aspect, a pipe machining apparatus includes multiple motors and pinion gears engaged with a gear rack of a tool carrier. In a further aspect, a pipe machining apparatus includes a race wiper. In yet another aspect, a pipe machining apparatus includes a race lubrication member.
Abstract:
The invention relates to a method for effecting the advance movement of one or more tool supports that rotate around a rotationally symmetrical part, and to a corresponding advance device. The supports are supported on the part in a manner that permits them to be fed via a leadscrew, and are rotationally driven, as a whole, by a main motor, mounted in a stationary manner, via a main transmission drive which is connected in a fixed manner to the support or to the tool support(s). According to the invention, the advance movement of each leadscrew is effected by the relative movement, with regard to the main transmission drive, of another motor-driven transmission drive that interacts with the leadscrew. The relative movement is effected by means of an advance device with which each leadscrew can be driven by another transmission drive and this drive can be driven by a stationary support motor. The housing of said support motor is rotatably mounted and is mechanically coupled to the main motor such that it can be rotationally driven by the same in a synchronous manner. The invention is provided primarily for use in the on-site machining of large shafts.
Abstract:
A tube cutting tool is described in which a cutting head (20) is rotatably mounted within a cutting body (18) wherein both define ''U'' shaped slots to enable the cutting tool to be inserted laterally over a tube. A cutting wheel (34) is attached to the cutting head such that rotation of the cutting head causes the wheel to pass around the periphery of the tube. A feed device (36-38-42-44-46) is incorporated which biases the cutting wheel into contact with the tube until the tubing wall has been completely severed. A gear drive (28-30-32) mechanism interconnects a power source (12) with the cutting head to rotate it about the tube. A clamping system (58-60-66-68) is also disclosed to clamp the device onto the tube during the cutting process.
Abstract:
Pipe machining apparatuses and methods of operating are provided. In one aspect, a pipe machining apparatus includes an advancement mechanism coupled to a frame and adapted to move relative to the frame between a first position, in which the advancement mechanism is in a travel path of an advancement member and is adapted to be engaged by the advancement member to advance a tool, and a second position, in which the advancement mechanism is positioned out of the travel path of the advancement member and is not adapted to be engaged by the advancement member. In another aspect, a pipe machining apparatus includes multiple motors and pinion gears engaged with a gear rack of a tool carrier. In a further aspect, a pipe machining apparatus includes a race wiper. In yet another aspect, a pipe machining apparatus includes a race lubrication member.
Abstract:
A pipe machining apparatus (20) includes a frame (28), a tool carrier (32) coupled to and movable relative to the frame (28), and a tool support (48) coupled to and movable with the tool carrier (32) relative to the frame (28). The tool support 48) is adapted to support a tool (52) and move the tool (52) in a first direction toward a pipe at a first increment and move the tool (52) in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.
Abstract:
The invention relates to a tool head for use in machine tools. The tool head has a basic body (10), a tool spindle (28) projecting axially above the basic body and connectable to a machine spindle, at least one working slide adjustable transversely to the axis (12) of the basic body and an adjusting motor (24) fitted in the basic body and acting on the working slide (16) in its adjustment direction via driving means (22, 72, 74, 68). To obtain a compact, easily assembled and reliable structure, the invention proposes that the driving means have an output shaft (72) running coaxially with the basic body and bearing a drive pinion (74) meshing with a rack (68, 124) on the working slide side. A further improvement in this respect is obtained if the adjusting motor (24) is fitted with a drive shaft (84) aligned with the output shaft (72) on the drive side. To improve ease of assembly, the tool head consists of three units which can be releasably assembled at axial separation points (30, 32), a slide unit containing the working slide (16), a drive unit (36) containing the adjusting motor and drive system and a connection unit (38) containing the tool shaft (28) and the power supply device (26).