A method for analyzing an overcutting defect of a machining process comprises steps as following. A machining code is executed to generate a cutting face, wherein the cutting face comprises a plurality of machining paths. A specified machining path is defined from the plurality of machining paths and a specified node is set on the specified machining path. A sectional plane passing through the specified node is calculated. A plurality of intersection points between the sectional plane and the other machining paths which are different from the specified machining path are obtained. A first adjacent intersection point a second adjacent intersection point are specified from the intersection points. A connection line located between the first adjacent intersection point and the second adjacent intersection point is obtained. A distance between the specified node and connection line is calculate and the distance is defined as an overcutting amount of the specified node.

An automated mechanical machining system for machining a metal panel comprising a first face and a second face which is on the opposite side from the first face, the automated mechanical machining system comprising at least one machining tool, at least one holding tool, a control module configured to control the machining tool and the holding tool in a coordinated manner, a matching module configured to determine simple actual machining paths TRAJr1 from, on the one hand, predetermined simple theoretical machining paths TRAJt1 and, on the other hand, measurement of the actual surface SURFr of the second face and a slope management module configured to determine sloping actual machining paths TRAJr2 from sloping theoretical machining paths TRAJt2, the simple theoretical machining paths TRAJt1 and the simple actual machining paths TRAJr1.

A method for analyzing an overcutting defect of a machining process comprises steps as following. A machining code is executed to generate a cutting face, wherein the cutting face comprises a plurality of machining paths. A specified machining path is defined from the plurality of machining paths and a specified node is set on the specified machining path. A sectional plane passing through the specified node is calculated. A plurality of intersection points between the sectional plane and the other machining paths which are different from the specified machining path are obtained. A first adjacent intersection point a second adjacent intersection point are specified from the intersection points. A connection line located between the first adjacent intersection point and the second adjacent intersection point is obtained. A distance between the specified node and connection line is calculate and the distance is defined as an overcutting amount of the specified node.

A universal tram is provided for aligning machine tools. The universal tram includes a slide rail, featuring a rail along its length, to which a clamping coupler attaches. In turn, the clamping coupler attaches to the indicator holder. The indicator holder is configured to hold an indicator. The slide rail is configured for direct attachment to horizontal and vertical milling machines, for example. Optionally, the universal tram also includes a machine adapter and adapter plate. The machine adapter serves as a base block for positioning a measurement or tramming device on a machine tool to which the slide rail does not directly attach—a horizontal or vertical lathe, for example. The adapter plate allows for the height of the machine adapter to be adjusted by an amount corresponding to the thickness of the adapter plate. Further, a method of using the universal tram is also provided.

This machining program generation device is provided with: a storage unit that stores machining conditions for respective tool regions determined on the basis of the number of effective edges in a multi-blade tool; a contact region calculation unit that calculates a tool region which comes into contact with a workpiece during machining on the basis of the shapes of the workpiece and the edge portion of the tool and of a tool path; and a machining program generation unit that generates a machining program on the basis of the tool path and the machining conditions stored in the storage unit in association with the tool region coming into contact with the workpiece.

A direct pose feedback (DPF) control method applied to a DPF controlled machine is provided. The DPF control method includes a pose compensation control in addition to the position feedback control. The pose compensation control includes an initiation step, a reference system step, an actual pose calculation step and a position compensation step. The sum of the primary driving value and the compensation driving value is output to the driver of each of the motors. The advantage of the DPF control method is that the existing real-time position control loop in the controller can remain unchanged, while the pose compensation control is added to eliminate tool pose error resulted from geometric errors in the machine. The DPF controlled machine uses a pose measuring mechanism to measure the actual pose of the tool and to compensate the tool pose error. Hence, the DPF controlled machine is free of geometric errors.

A machine tool with a spindle stock 20 and a tool rest 40 mounted on a bed 11, in which the spindle stock 20 and the tool rest 40 are able to relatively move in an X-axis direction that is a diameter direction of a spindle and a Z-axis direction that is an axial direction of the spindle, includes: a linear scale 50 disposed over the spindle stock 20 and the tool rest 40 on an upper side in the X-axis direction to detect position information in the X-axis direction; and a rail 23 extending in the Z-axis direction, and the linear scale 50 moves in the Z-axis direction while guided by the rail 23 integrally with either the spindle stock 20 or the tool rest 40 when the spindle stock 20 and the tool rest 40 relatively move in the Z-axis direction.

Machining tool for internal machining of a shaft (2) with an inner bore (3), such as an aircraft engine turbine shaft (fan mid shaft). The machining tool has an external boring bar (6) support device (5), and a boring bar (6) having a diameter smaller than a smallest opening on one side (4) of the inner bore (3) of the shaft (2). The boring bar (6) has a radially extensible cutting insert (7), and an end part (6b) of the boring bar (6) is rotatably connected to a main part (6a) of the boring bar (6). The end part (6b) is provided with one or more radially moveable guiding pads (8).

A three-dimensional target capable of serving as a positioning reference, including, on a useful face, a first structure and a second structure. The first structure defines a planar reference face divided up between at least a first portion whose surface is reflective according to a diffuse reflection, and a second portion whose surface is reflective according to a specular reflection, the second portion being divided up according to a series of localized zones positioned in the first portion. The second structure has an inclined face relative to the planar reference face. Applicable to three-dimensional optical measurement of the relative position between a first object and a second object.

The invention relates to a surface machining device comprising a substrate support for receiving a substrate to be machined, a machining unit which can be moved relative to the substrate support along a first and a second movement axis, a position detecting unit for ascertaining the orientation of the substrate, and a control unit for controlling the movement of the machining unit dependent on the orientation of the substrate on the substrate support. The aim of the invention is to provide a surface machining device which can be produced in a compact manner and which allows a precise machining of the surface of the substrate to be machined in an inexpensive manner regardless of the position of the substrate on the substrate support. This is achieved in that the machining unit can be pivoted relative to the substrate support, in particular about a height axis which extends perpendicularly to the plane formed by the first and second movement axis.