摘要:
An apparatus for processing the cylindrical shells of drums, which comprises a cradle sized for reception in embracing relation with the shell, the shell having a longitudinal axis, the cradle having support structure to clamp a cylindrical surface of the shell and at lengthwise locations, for supporting the shell; structure operatively coupled to the cradle to effect displacement of the support structure to clamp the shell surface; structure for rotating the cradle about an axis corresponding to the drum shell axis, thereby to rotate the shell about the axis; and tooling facing the shell to engage and process the shell as it rotates.
摘要:
A device (1) for balancing rotors (3) by material removal is disclosed, which comprises a milling tool (18) provided with a first and a second cutting regions (18a, 18B) disposed transversely of each other, to remove material in the presence of feed movements for cutting, directed both radially of a rotor (3) and tangentially of the outer surface (4) of the rotor (3), and comprising support and relative-movement means (2) for positioning and moving the milling tool (18) and rotor (3) relative to each other, which means engages the rotor (3) in a manner adapted to cause rotation of said rotor about its rotation axis (5) even while the milling tool (18) is removing material from the rotor (3).
摘要:
A method of producing an annular nonuniform groove (106) in the bore wall (104) of a casing (100) and a casing produced thereby is disclosed. The method includes the steps of forming a first portion (164), forming a second portion (172), and forming a third portion of an annular nonuniform groove. The first portion is formed by a first milling tool (168). The first portion defines a starting point (108) as the radial furthest point on the radially outer surface of the first portion. The first portion also defines a first intermediate point (166) as the radially closest point on the radial outer surface of the first portion. The second portion (172) is formed by a second milling tool (174, 180). The second portion is defined along the annular radial outer side wall from the first intermediate point to a second intermediate point (178). The second intermediate point (178) is defined as the radial closest point on the annular radially outer side wall of the second portion. The third portion (196) is formed by a third milling tool (194). The third portion (196) extends along the annular radial outer side wall of the annular nonuniform groove from the second intermediate point (178) to an ending point (110).
摘要:
A data encoding system for encoding input color pixel data and outputting encoded data. The data encoding system includes a reference pixel generating device which outputs reference pixel data corresponding to the input color pixel data to be encoded; a predictor having a color order table which sets the color ranks of color codes for every reference pixel pattern, reads and outputs the color rank of the corresponding color code from the color order table on the basis of the color pixel data to be encoded and its reference pixel data; and an entropy encoding device which converts the color ranking data into encoded data and outputs the encoded data.
摘要:
The invention relates to a feed device for machine tools with chuck arranged at the free end of a spindle, to which chuck the workpiece is fed axially through the inside of the spindle from the rear by means of compressed air from a compressed air nozzle through the spindle (1) into the chuck (2), having a tool station arranged in front of the head of the chuck and having a stop which comes in front of the head of the chuck (2) in synchronism with the machining for halting the movement of the individual workpiece (8). In order to increase the productivity, a brake member is arranged in the axial hollow (11) of the spindle (1) between the entrance end and the chuck (2).
摘要:
An automatic self-centering chuck system for use on an engraver. The chuck system includes a plurality of jaws which are slidably mounted for movement in a radial direction toward a central aperture of the chuck to clamp a shaft for an engraving cylinder. Each of the jaws is actuated for movement by a lever pivotally mounted within the chuck. The levers are actuated for pivotal movement by an axially reciprocating drawbar which is energized for movement by a series of pneumatic cylinders. The components of the chuck are accurately machined to provide close tolerance, precise movements of the jaws whereby a cylinder will be accurately positioned at the central rotational axis of the chuck. In order to ensure that the precise level of jaw movement is maintained throughout the life the chuck, a lubricant flushing or purging system is provided for flushing normal wear particles from the precision components internal to the chuck.
摘要:
A method and apparatus for automated loading and unloading of a cylinder in an engraver. The method and apparatus permit the engraver to accommodate cylinders of differing geometries, including a range of lengths, diameters and mounting configurations. The engraver includes a headstock and a tailstock which cooperate to rotatably support a cylinder at an engraving station in the engraver. The engraver also comprises a cylinder handling system having at least one cylinder support for supporting the cylinder between the headstock and tailstock during loading and unloading of the cylinder. In one form, the cylinder supports each comprise a telescoping support member having a support nest for engaging and supporting the cylinder at the engraving station. In another form, the cylinder supports each include a support housing and a support structure mounted to the support housing. In this form, the support structure includes at least one cylinder receiving area. Selection may be made between plural cylinder receiving areas for receiving cylinders of different dimensions.
摘要:
A system performing a conical transition from a shaft to the core diameter of a worm is disclosed. The disclosed system includes inserting a rough milling machine in an axial direction before a disk milling machine used for milling the worm. The rough milling machine is especially manufactured integrally with the disk milling machine. The teeth of the rough milling machine are shorter than the teeth on the disk milling machine, and the teeth of the rough milling machine preferably define a truncated-cone shaped covering.
摘要:
A router accessory used in concert with a router attached to a router table. The accessory can be used to produce rosettes, model wheels, buttons, coasters, and other circular decorated projects, for example. In the preferred embodiment, a wooden workpiece can be positioned horizontally above a selected router bit. The workpiece zero point, which may be the workpiece center, can be off-set horizontally from the router bit. The accessory can then be used to lower the workpiece onto the router bit, so that rotation of the workpiece routs a circular cut equidistant from the workpiece zero point. The maximum depth of cut can be set. The off-set can be changed to make additional circular cuts into the workpiece, as desired.
摘要:
A method for machining a workpiece. The method includes the use of a rotary cutting tool mounted on the end of a movable arm. The arm is adapted to move in a plane perpendicular to the axis of rotation of the cutting tool. The cutting tool has cutting teeth to cut chips of material off of the workpiece in a predetermined size and shape to facilitate better removal of the chips from the workpiece. The teeth can be of different type and length to permit the tool to both rough cut and finish cut the workpiece during machining. The total depth of cut is divided by the number of tool teeth, so that the longest tool always performs the finishing cut.