Disclosed is a tool with a base body (1) on which an adjustable blade holder (35), preferably a rocker-type blade holder, is mounted crosswise to the tool axis. The blade holder is located above a pressure member (33) against a control chamfer (32) which is provided in a built-in control sleeve (23) inside the base body and mounted axially shiftable relative to the pressure force axis. Said tool is characterized in that the blade holder motion (35) is controlled by at least one centrifugal force element (44, 66).

Tool and method for processing perforations

Methods and apparatus for fine adjustment of the position of the cutting tool. In one embodiment, a boring tool includes a coupling member driven by a CNC boring machine, a cutting tool which is slidably coupled to the coupling member, and a slidable adjustment member. A frictional force resists sliding movement of the cutting tool. The frictional force is sufficient to retain the position of the cutting tool during machining operations. However, the frictional force is insufficient to resist an adjusting force applied by the adjustment member. Sliding motion of the adjustment, either by pulling or pushing it, results in movement of the cutting tool. In one embodiment, the cutting tool and the adjustment member are slidable in different directions. In another embodiment, the boring tool is adapted and configured to convert a first, greater amount of movement by the adjustment member to a second, lesser amount of movement by the cutting tool.

Slidable boring tool with fine adjustment

Method and apparatus for adjusting the position of a cutting tool. In one embodiment, a boring tool includes a coupling member which is driven by a CNC boring machine, and a sliding tool holder which is slidably coupled to the coupling member. A frictional force resists sliding movement of the cutting tool holder. The frictional force is sufficient to retain the position of the cutting tool during machining operations. However, the frictional force is insufficient to resist a lateral force applied parallel to the direction of sliding, as used during adjustment of the tool position. In another embodiment, either a surface of the sliding tool holder or a surface of a frictional member are contoured with a shape that corresponds to a desired contour of a sidewall of a hole. During machining, a follower in contact with the contoured surface causes the cutting tool holder to slide laterally during machining, thus contouring the sidewall of the hole.

Adjustment method and apparatus for a boring tool

Material removal tool (310) with a translating bar (360) having an actuation surface (362) shaped as a cone or frustum, wherein an axial position of the cone or frustum along a length of the translating bar (360) corresponds to a position of a push rod (364) in operable contact with flexibly mounted cartridges (312) on which cutting inserts (316) are mounted is disclosed. The translating bar (360) is actuated between a first and second position to place different combinations of cutting inserts (316) from different cutting positions (a-d) in a radially outermost position. Various combinations of cutting positions (a-d) and cutting inserts (316) are disclosed along with various methods for removing material using the disclosed material removal tool (310).

Actuated material removal tool

A tool is rotated by a spindle mounted on a Z-axis table carried on a column and moved in the direction of a Z-axis to process a workpiece, while moving an X-axis table supported on a column rising from a bed in the direction of an X-axis and moving a Y-axis table supported on the X-axis table in the direction of a Y-axis to move the workpiece supported on the Y-axis. By controlling the movement of the X-axis and Y-axis tables in a contouring manner to move the workpiece along any path, holes having various sizes and shapes can be made by one type of the tool. Moreover, the wear of a cutting blade of the tool can be compensated by correcting the path of movement of the workpiece.

Machining center, contouring process, and tool supporting mechanism

An engine block is located and clamped on a pallet and then brought into a boring station where the pallet is located and clamped on a shuttle. The shuttle moves solely along a straight horizontal path to move the engine block into the work station, locate the engine block during a machining operation, and then transfer the block out of the work station. First and second three-axis boring machines at respective opposite sides of the block locate crankshaft and camshaft boring bars for different engine blocks and then simultaneously back bore both the crankshaft and camshaft bores. A computer numerical control (CNC) positions the boring bars and the block and controls other machining parameters for different engine blocks. The CNC causes the shuttle to move to a location horizontally offset from a final machining location so that the boring bar axes are offset horizontally from the bearing bore axes and the boring bars are then inserted into the block. The shuttle is then shifted horizontally to the final machining position for the back boring operation.

Flexible boring machine and method

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Flexible boring machine and method