Abstract:
A feed control (34) for a tool bit (30) carried by a headstock (16) of a lathe includes a driving cam having a profiled lobe (40) that permits automatic quick return of the tool bit following each cutting operation. The cam is driven in a forward feed direction by a cam actuator arm (36) carried by the headstock.
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:
A blow molded container (10) having a trimmed nonround opening (12) is blow molded from a preform (36) and then positioned by a positioner (50) of a nonround trimmer (16) that includes a rotary driven arm assembly (56) having a knife holder (60). A guide (66) guides the knife holder (60) in a nonround path to perform the trimming.
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:
The invention pertains to a process and device for chamfering a clamped pipe end to close positional and dimensional tolerances as to the inside or outside diameter of the pipe (1). In a rough-machining step with a machine tool (21) set to the pipe diameter the chamfer is produced up to the machining allowance for a subsequent finish-machining step, and in a finish-machining step the chamfer is applied to close positional and dimensional tolerances as a function of the inside or outside diameter determined by the run of a tracer (22) over the circumference of the pipe.
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:
A cutting tool assembly having a tool post capable of lateral movement along a work piece to be cut and an actuator with a tool tip. The actuator provides for independent and variable control of the movement of the tool tip in an x-direction into the work piece and in a z-direction laterally along the work piece for use in making microstructures in the work piece.
Abstract:
An automatic lathe (10), comprising a first spindle (14) having a rotating axis (14a), a first tool post (18) capable of holding a plurality of tools (22) in parallel with each other, a second tool post (20) capable of holding the plurality of tools (22) in parallel with each other on each of first and second rows showing the blade tip directivities different from each other, and a second spindle (16) having a rotating axis (16a) in parallel with the rotating axis of the first spindle and capable of being disposed opposedly to the first spindle, all mounted collectively on a lathe frame (12), wherein the first spindle is allowed to be moved linearly along a first control shaft in parallel with the rotating axis of the first spindle, the first tool post is allowed to be moved linearly along a second control shaft crossing perpendicular to the first control shaft, the second tool post is allowed to be moved linearly along a third control shaft crossing perpendicular to the first control shaft and along a fourth control shaft in parallel with the first control shaft, and the second spindle is allowed to be moved linearly along a fifth control shaft in parallel with the third control shaft and along a six control shaft in parallel with the first control shaft, whereby a control device (106) is allowed to simultaneously perform a first machining operation related to the first spindle using a desired tool selected by the first tool post, a second machining operation related to the first spindle using a desired tool selected from the first row by the second tool post, and a third machining operation related to the second spindle using a desired tool selected from the second row by the second tool post.
Abstract:
An apparatus (11) for scraping off of a cylindrical part (10) comprises a rotor (cleaning means 15) and a stator (holder means 12). The rotor (15) is equipped with power-driven arrangements (16a), which cooperate with power-driving arrangements (P) on the stator (12), for turning of the cleaning means (15) relative to the stator (12). The rotor (15) is formed by two rotor parts (15a, 15b), which are joined together into a rigid, annular rotor. The rotor (15) is free-flowingly rotatably mounted directly in the holder means (12) and is equipped with a set of support rollers (49) and a set of scraper means (50) which are controlled by centrifugal force during rotation of the rotor.