Methods of fly-cutting a workpiece are disclosed, and in methods in which the position of a fly-cutting head or its associated cutting element is known as a function of time Also disclosed are methods of forming features, such as grooves or groove segments, in a workpiece such as a cylindrical roll The features may be provided according to one or more disclosed patterns Articles made using tools machined in the manner described are also provided, such as polymeric film or sheeting that exhibit certain beneficial properties

Fly-cutting system and method, and related tooling and articles

A cutting machine for gear shaping or the like is provided. The cutting machine includes a gear shaping head. The gear shaping head has a ram that is guided by and reciprocates along a linear guide mounted between a saddle of the gear shaping head and the ram. At least one linear motor reciprocates the ram along a stroke axis relative to the saddle. The ram also carries a rotary drive and a spindle that reciprocate in unison with the ram. The rotary drive directly drives the spindle to journal the spindle through incremental angular positions during gear shaping.

Cutting machine for gears, splines, & other shapes

A numerically-controlled horizontal-gantry fixed-girder milling machine for cycloid gears is characterized in that the milling machine comprises a machine body (10), a stand column (1), a rectangular workbench (16), a fixed girder (2), a milling spindle box (7), a disc milling cutter (8), a vertical rotary indexing table (15) and a tail-ejector-pin support (11) The numerically-controlled horizontal-gantry fixed-girder milling machine is optimized in structure, convenient to operate, high in processing efficiency, applicable to processing the cycloid gears with few teeth, high in performance-cost ratio and applicable to processing of various batches of the cycloid gears in the cycloid speed reducer industry; when different shaping cutters are replaced, the milling machine is also applicable to other shaft parts, such as splines and motor rotor slots, in need of slotting; on the condition of same input-output ratio, user investment and occupation area are reduced, and equipment application range is widened

Numerically-controlled horizontal-gantry fixed-girder milling machine for cycloid gears

A numerical control vertical type plane forming grinding machine comprises a Y-axis base, a Z-axis stand column, an X-axis base and a linear motor. An X-axis optical grating is fixed to one side of the X-axis base, a Y-axis optical grating is fixed to one side of the Y-axis base, and a Z-axis optical grating is fixed to one side of the Z-axis stand column. An X-axis workbench is arranged on the X-axis base and provided with an X-axis linear guide rail sliding block and an X-axis linear motor rotor. The numerical control vertical type plane forming grinding machine has the beneficial effects that the integral structure of the grinding machine is simplified, the service life of the grinding machine is prolonged, the maintaining cost is reduced, and the machining precision is better improved.

Numerical control vertical type plane forming grinding machine

An apparatus for finding a machine tool origin includes a base and a sensor positioned on a first side of the base. The sensor includes probe engagement components and electronic circuitry. The probe engagement components are configured for movable engagement with a probe of the machine tool to produce electronic signals processed by the electronic circuitry to provide a signal indicative of the machine tool origin. Mechanical positioning components are positioned on a second side of the base. The mechanical positioning components include a pedestal with a first tab and a second tab aligned to be operable as a mechanical stop with the second tab corresponding to the position of a right-hand origin for the machine tool and the second tab and a third tab aligned to be operable as a mechanical stop with the second tab corresponding to the position of a left-hand origin for the machine tool.

Apparatus for finding a machine tool origin

A cutting machine (10) includes linear electrical actuation via a linear electrical motor (64) for controlling linear reciprocating movement of a spindale (12) and cutting tool (30). the cutting machine (10) is suited for gear shaping cutting operations and the like. Linear electrical actuation may be used to control position of a hydraulic valve (54) within the spindle (12), which controls hydraulic actuation and linear movement of the spindle (12). Linear electrical actuation, in the form of linear electrical actuator (104), and flexture plates (such as 22, 24) may also be used to pivot the spindle (12) to relieve the cutting and/or during the cutting stroke for gear crowning operations. A rotary actuator (138) is also disclosed as incorporated into the pivoting saddle (18) of such a cutting machine (10).

Cutting machine for gear shaping or the like

A gear shaping machine is provided. The gear shaping machine includes a pair of horizontally reciprocating gear shaping heads mounted to a column. Each gear shaping head includes a spindle assembly including an integral rotary drive for indexing the spindle. The spindle assembly is carried by a spindle slide. The spindle slide also carries a plurality of bearing blocks to allow for sliding movement of the gear shaping head relative to rails mounted on the column. A linear drive arrangement is operably coupled between each gear shaping head and the column. The linear guide arrangement allows for controlled linear translation of each gear shaping head independently of one another. Each gear shaping head also includes a back-off mechanism for independently moving the spindle assembly toward the workpiece during a cutting stroke and away from the workpiece during a return stroke of each gear shaping head.

Wayne Densmore

Papers

Cutting machine for gear shaping or the like

Cutting machine for gears, splines, & other shapes

Horizontal Gear Shaping Machine With Dual Shaping Heads