摘要:
A C-axis unit for a machine tool, the C-axis unit comprising a bushing (134) adapted to be fixed to a unit support (121) of the machine tool; a head mounting platform (130) adapted to receive an operating head (40), the head mounting platform being supported by the bushing (134) and being rotatable relative to the bushing (134) around a vertical axis; a platform rotation motor (150) supported by the bushing (134) and configured to control the rotation of the head mounting platform (130); and a spindle motor (160) configured to control the rotation of a tool-carrying spindle (45) on the operating head (40) through a driving extension (163) arranged in a through-bore (133) obtained through the head mounting platform (130). The spindle motor (160) is fixed to and is rotationally integral with the head mounting platform (130).
摘要:
The pallet changing system comprises a pallet deposition and pick-up station and a pallet loading and unloading station, horizontally spaced from one another along a first horizontal direction (A-A), as well as a pallet handling unit. The pallet handling unit includes: horizontal guide means extending along the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station; a pair of motorized uprights, which are jointly movable in a controlled manner in the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station, each upright being provided with a respective motorized lifting carriage vertically movable in a controlled manner, each lifting carriage being provided with a pair of gripping devices which are horizontally spaced from one another and selectively or jointly controllable to engage a corresponding end of a pallet (P) so as to allow rotation of the pallet (P) about a first horizontal axis; a pair of motorized auxiliary carriages, which are jointly movable in the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station, and are provided each with a gripping device arranged to engage a corresponding end of the pallet (P) facing the pallet deposition and pick-up station, so as to allow rotation of the pallet (P) about the first horizontal axis; and a motorized transporting carriage which is arranged to transport, in a vertical attitude, the pallet (P) with the workpiece (WP) connected thereto, and is movable between the pallet loading and unloading station and a working area (SW) of the machine tool (MT) in a second horizontal direction (B-B) forming an angle with respect to the first horizontal direction (A-A).
摘要:
A method for checking positioning accuracy of a CNC machine with a machine tool head and a machine table using an x, y, z coordinate system, the method comprising: a) arranging a plurality of vessels on the table, the vessels in fluid connection with each other to form a system of vessels, the vessels filled with a liquid, b) mounting a distance sensor to the tool head, c) positioning the tool head to a position above the surface of the liquid in one of the vessels, d) a determining the z coordinate for which the distance sensor touches the surface of the liquid, or, for a predetermined position of the tool head in z direction above the liquid, determining the distance between the distance sensor and the liquid; steps c) and d) are repeated for each vessel to determine a z coordinate of the surface of the liquid.
摘要:
The machine tool comprises a fixed bearing structure, a movable bearing structure supported by the fixed bearing structure and displaceable with respect thereto along a horizontal direction, a tool-carrying carriage mounted vertically translatable in the movable bearing structure between an upper end position and a lower end position, situated at respective heights or levels separated by a predetermined vertical distance, and a motor adapted to cause a horizontal displacement of the movable bearing structure with respect to the fixed bearing structure and/or a vertical displacement of the tool-carrying carriage with respect to the movable bearing structure. The fixed bearing structure is configured such that the movable bearing structure is supported and driven in its displacement at a height or level intermediate between the heights or levels of the end positions of the tool-carrying carriage.
摘要:
An optically-connected system is disclosed for exchanging data among industrial automation devices, that is composed of a plurality of connection elements, where each element comprises at least two pairs of optical transmitters and receivers on the main side, and one optical receiver on the opposing main side, that are opposite with respect to another pair of transmitters and receivers in a following element; and where each one of the transmitters and receivers is adapted to communicate with industrial automation devices to cooperate for exchanging data between elements, sending one interrogation signal requesting an identity of the receiver and the receiver is adapted to send to each corresponding response signal containing characteristics of the receiver.
摘要:
The invention relates to a method for amelioration of neurological outcome in humans with spinal cord damage by administration of ganglioside GM1. Another object of the present invention is to provide combination therapies for the treatment of spinal cord damage comprised of the administration of the ganglioside GM1 and other drugs which have therapeutical benefit in patients with spinal cord damage, preferably methylprednisolone.
摘要:
The pallet changing system comprises a pallet deposition and pick-up station and a pallet loading and unloading station, horizontally spaced from one another along a first horizontal direction (A-A), as well as a pallet handling unit. The pallet handling unit includes: horizontal guide means extending along the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station; a pair of motorized uprights, which are jointly movable in a controlled manner in the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station, each upright being provided with a respective motorized lifting carriage vertically movable in a controlled manner, each lifting carriage being provided with a pair of gripping devices which are horizontally spaced from one another and selectively or jointly controllable to engage a corresponding end of a pallet (P) so as to allow rotation of the pallet (P) about a first horizontal axis; a pair of motorized auxiliary carriages, which are jointly movable in the first horizontal direction (A-A) between the pallet deposition and pick-up station and the pallet loading and unloading station, and are provided each with a gripping device arranged to engage a corresponding end of the pallet (P) facing the pallet deposition and pick-up station, so as to allow rotation of the pallet (P) about the first horizontal axis; and a motorized transporting carriage which is arranged to transport, in a vertical attitude, the pallet (P) with the workpiece (WP) connected thereto, and is movable between the pallet loading and unloading station and a working area (SW) of the machine tool (MT) in a second horizontal direction (B-B) forming an angle with respect to the first horizontal direction (A-A).
摘要:
A C-axis unit for a machine tool, the C-axis unit comprising a bushing (134) adapted to be fixed to a unit support (121) of the machine tool; a head mounting platform (130) adapted to receive an operating head (40), the head mounting platform being supported by the bushing (134) and being rotatable relative to the bushing (134) around a vertical axis; a platform rotation motor (150) supported by the bushing (134) and configured to control the rotation of the head mounting platform (130); and a spindle motor (160) configured to control the rotation of a tool-carrying spindle (45) on the operating head (40) through a driving extension (163) arranged in a through-bore (133) obtained through the head mounting platform (130). The spindle motor (160) is fixed to and is rotationally integral with the head mounting platform (130).
摘要:
A method of determining a positioning error of a CNC machine is provided and an system thereof. A calibration element is placed within the CNC machine. A first sensor reading is taken of the calibration element. A second sensor reading is taken and the sensor is moved in a manner that the difference between the first and second sensor data decreases until the difference becomes less or equal to a pre-determined threshold value. A positioning error of the tool head is determined based on the movement of the sensor.
摘要:
A machine tool has a substantially straight guide element extending along a first axis; two carriages, which are arranged at a fixed distance from one another along the guide element and are capable of sliding together along the guide element; a slide, which is interposed between the two carriages, is carried by the two carriages and can slide relative to them along a second axis perpendicular to the first axis; and a milling head, which is carried by the slide and is configured to carry a milling tool.