摘要:
A turret (24) is clamped on a tool rest body (22) by a pair of coupling elements (66, 68). During a rotational indexing operation for a tool selection, the tool rest body (22) and the turret (24) are moved relative to each other along a Z-axis, to disengage the coupling elements (66, 68) and thus unclamp the turret (24). At this time, the tool rest body (22) is moved relative to a lathe base (10) along the Z-axis, synchronously to the relative movement of the tool rest body (22) and the turret (24) along the Z-axis. The direction and distance of the motion of the tool rest body (22) relative to the lathe base (10) is adjusted so as to eliminate the relative movement between the turret (24) and a spindle stock (12). This motional control serves to prevent the turret (24) and a tool attached thereto from moving relative to the spindle stock (12) and a workpiece, whereby the problem of interference between these components can be solved.
摘要:
The slide 14 carries a support 18 for a plurality of tools, which is secured to a sleeve 34 rotatable and axially slidable on a body 38. The slide 14 carries a series of hydrostatic bearings 36, 39 and 87 to guide rotatably the sleeve 34 and axially the body 38. The sleeve 34 is antulrly tied to the body 38 through a normally closed front clutch 42, 43, which is opened by axially displacing the sleeve 34 with respect to the body 38, through a hydraulic device 44, 47. A reversible electric motor 52 is operated for rotating the sleeve 34 to select the tool, and may be numerically controlled for continuously displacing the tool during a working operation.
摘要:
The machine tool of the invention combines the following three features: the workpiece holder (22) rotates around an axis (C) which is referred to as horizontal turning axis and is parallel to one (X) of the three orthogonal axes (X, Y, Z), the said axis (C) overlying a table (12) the flat upper-face of which is parallel to said turning axis (C) and comprises means for fastening one or more support and/or centering means (15, 24); the toolholder (38) comprises two clamping mandrels, one for a stationary tool and the other for a rotary tool; the workpiece holder is in relation with drive means (23, 25) which confer upon it one of the three kinematics of the following kinematic group: immobilization in a given angular position, a so-called slow speed of rotation for milling operations which are not parallel to the axis (C), and a so-called high speed for the turning.
摘要:
A machining apparatus has a frame defining first and second upper machining stations horizontally offset from each other and first and second lower transfer stations underneath the first and second upper machining stations. First and second spindles have respective workpiece grabs and are displaceable vertically on the frame between upper positions in the respective machining stations and lower positions in the respective transfer stations. A workpiece conveyor extending through the transfer stations can transport workpieces into and out of the transfer stations. A holder carrying tools is displaceable horizontally on the frame between the machining stations. A chip deflector has first and second parts movable between catch positions underneath the respective first and second machining stations and parked positions not underneath the respective first and second machining stations.
摘要:
In order to save the investment for a separate cold rolling machine for applying threads etc. a cold rolling unit is placed in a moveable manner onto the Z-drives of a turning machine wherein the cold rolling unit can be configured much larger and much more stable and with less wear than a cold rolling unit used in a tool revolver. Even parallel processing through turning and rolling is facilitated.
摘要:
The invention relates to a device for use in production of bevel gears. The device comprises a turning machine (22), with a working spindle (22.1) and a counter-holder (23), arranged co-axially to a rotational axis (B1) of the working spindle (22.1) for the coaxial tensioning of a workpiece blank (K1). A multi-functional tool holder (24) is provided, which may be displaced relative to the workpiece blank (K1) held in the turning machine (22) and comprises a tool base (25) mounted to rotate about an axis (B2). The tool base (25) is provided for fixing one or more tools. A tool housing (26) with milling head (27) is provided, the tool housing (26) being displaceable relative to the workpiece blank (K1) held in the turning machine (22) and the milling head (27) is mounted to rotate about a milling head axis (B3). A controller is provided for control of the movement processes, to subject the workpiece blank (K1) firstly to a turning process with a tool fixed to the tool base (25) and then a toothing machining with the milling head (27).
摘要:
A hands-free quick-change air tool configuration for a machining apparatus includes a tool holder configured to receive a normally hand-held air operated tool. The air manifold is operably receptive of the tool holder. A plunger-type seal configuration is operably interconnected to an air supply and is in operable communication with the air manifold. A method for deburring a part in a machining apparatus is included.
摘要:
A roll turning lathe is provided herein which can not only machine with high precision circumferential transverse grooves in the peripheral surface of a roll but can also machine with high precision longitudinal grooves in the peripheral surface. The precision roll turning lathe includes a fly cutter spindle device and a tool post having a plurality of cutting tools that are mounted on a tool swivel. By selectively using the tool post and the fly cutter spindle device, high-precision machining of transverse grooves and longitudinal grooves on a roll-shaped workpiece.
摘要:
A machine tool assembly having a frame, a workpiece holder, and at least one machining unit that is operable to perform an operation on a workpiece in an operative position on the workpiece holder. The frame has first and second spaced end supports and at least one reinforcing element which extends between the first and second end supports so as to maintain the first and second end supports in a desired operative relationship. The workpiece holder and at least one machining unit each are connected to at least one of the first and second end supports and at least one reinforcing element so that the machining unit can be operated to perform an operation on a workpiece in an operative position on the workpiece holder.
摘要:
A multi-speed drive system for a portable lathe is disclosed wherein two or more input drive gears are utilized to drive a cutting tool holder ring. Each of the input drive gears has a different pitch diameter so that it will impart different drive speeds/torque characteristics to the cutting tool holder ring. A main drive gear is interposed between each of the input drive gears and a ring gear attached to the cutting tool holder. The input drive gears are each engaged with the main drive gear and a drive motor is connected to the desired input drive gear.