Abstract:
Tool-switching device for a machine for measuring coordinates wherein the tool is fastened on the tool-carrier and held by the action of elements exerting an axial force. The locking force is taken over symmetrically by the elements of a Boys connection, which increases the repeatability of the connection; in one embodiment, two pins or spheres are driven by a sliding bushing provided with two “V”-shaped slits or with two lateral gorges. In the subsequent embodiments, the pins are replaced by spheres, by levers or by a stirrup.
Abstract:
Motorized indexed measuring head for a machine for measuring three-dimensional coordinates. Includes a double-action actuator to pass from a locked state, wherein any rotation of the probe feeler is prohibited, to an unlocked state, wherein the feeler can be oriented along two axes by two servomotors. The locking and unlocking mechanism is independent from the gravitational force and can operate whatever the orientation of the measuring head.
Abstract:
Orientable probe (10) comprising a probe feeler (6) capable of being oriented along a plurality of indexed directions around a rotation center (O), thanks to two mobile elements (4, 5) that can turn: the first around a first axis (B) and relatively to a fixed support (3); the second around a second axis (A) and relatively to the first mobile element. The feeler (6) is fixed in a shifted position relatively to the rotation center (O).
Abstract:
Touch-triggered probe comprising a fixed part, designed to be fastened onto a measuring machine or a machine tool, and a mobile contact feeler that can be oriented on two independent axes along a multiplicity of spatial directions. The two axes of the probe comprise each an actuator for unlocking and adjusting the axes. The operation force is reduced as compared with the high effective indexing force by a demultiplying mechanism having an increasing transmission ratio, for making easier the operation in unlocked position. The indication elements can easily be read whatever the feeler's orientation.
Abstract:
Electronic circuit for dimension-measuring device with magneto-resistive electrodes supplying at least one feed voltage for feeding a network of magneto-resistive electrodes and a measuring circuit comprising two differential inputs connected to the network. The measuring circuit uses a rough counter and a fine interpolation circuit for determining from the two sinusoidal input signals received the position of the sensor along the scale. The feed circuit periodically reduces the supplied electric feed voltage so as to temporarily lessen the dissipation of energy in the magneto-resistive electrodes.
Abstract:
The electronic circuit (3) comprises an electric feed circuit (42) supplying at least one feed voltage (EPEN) intended to feed a network of magnetoresistive electrodes (100) and a measuring circuit (30-39) including two differential inputs (C, C′, S, S′) connected to the network. The measuring circuit uses a rough counter and a fine interpolation circuit to determine the position of the sensor along the scale on the basis of the two sinusoidal input signals received. The feed circuit periodically reduces the electric feed voltage supplied so as temporarily to lessen the dissipation of energy in the magnetoresistive electrodes.
Abstract:
Multidimensional coordinate measuring machine having a programming mode in which the measuring head can be displaced manually by an operator and a measuring mode in which a control unit is designed for automatically optimizing and reproducing the displacements of the measuring head recorded during the programming mode.
Abstract:
An analogue scanning probe with a connector detachably connectable to a movable support of a coordinate measuring system, the scanning probe including a touch at the tip of a stylus pivotally connected to the scanning probe according to a measure axis and a position encoder delivering a measure of the tilt angle of said touch about said measure axis, the scanning probe including one articulation comprised between said connector and said measure axis arranged to allow tilting of the scanning probe or of a part of the probe scanning probe.
Abstract:
A probe, connectable to a machine tool, has an electric generator and a driving element. The electric generator supplies an electric or electronic circuit with electric power, and the driving element is capable of relative rotation with respect to the stator of the electric generator. The driving element is not connected to any external energy source and can be set in rotation simply by activating the rotary axis of the machine tool. The driving element is either rotatably mounted on the probe itself or fixed on the reference table of the machine tool. The probe requires no additional connections to the machine tool on which it is mounted, besides the connection to the rotary spindle, which can be realized with a conventional tool-holder with a standardized tapered shank. The probe is fully compatible with standard probes and can be mounted and used with standard tool-holders without any adaptation.
Abstract:
Multidimensional coordinate measuring machine having a programming mode in which the measuring head can be displaced manually by an operator and a measuring mode in which a control unit is designed for automatically optimizing and reproducing the displacements of the measuring head recorded during the programming mode.