RU2013154339A

RU2013154339A - CNC MACHINING CENTER

Info

Publication number: RU2013154339A
Application number: RU2013154339/02A
Authority: RU
Inventors: Олег Савельевич Кочетов
Original assignee: Олег Савельевич Кочетов
Priority date: 2013-12-09
Filing date: 2013-12-09
Publication date: 2015-06-20
Also published as: RU2572111C2

Abstract

Обрабатывающий центр с ЧПУ, содержащий основание с установленным на нем рабочим столом, который имеет возможность перемещаться по направляющим перемещения по координате Y, расположенным горизонтально на основании станка, при этом перпендикулярно направляющим перемещения по координате Y и над столом установлены направляющие перемещения по координате X, которые закреплены на основании с помощью стоек, а на направляющих с возможностью перемещения по ним закреплена плита, на которой установлены направляющие перемещения по координате Z, по которым может перемещаться корпус с установленной на нем фрезерной головкой, при этом устройства для перемещения по координатам X, Y, Z, соответственно выполнены в виде пар винт-гайка, винты которых соединены с валами приводных электродвигателей, а гайки соединены с плоскостями перемещаемых узлов, а при обработке поверхности заготовки со сложным контуром, состоящим из двух или более участков разной формы, включающий относительное перемещение концевой фрезы и заготовки, при обработке фасонного и пересекающегося с ним прямолинейного участков контура, концевая фреза непрерывно движется по одной общей траектории, которую определяют уравнением:где x, y - координаты в плоскости, перпендикулярной оси фрезы, в которой осуществляют перемещение фрезы; А=0,1, В=-1,5·10, m=4, n=2, при этом параметры общей для разных участков траектории и диаметр фрезы задают такими, что они обеспечивают обработку фасонного участка контура, очерченного по одной или двум дугам окружностей, отличающийся тем, что на рабочем столе дополнительно расположен стол для крепления заготовки, который выполнен поворотно-каAn CNC machining center containing a base with a working table mounted on it, which has the ability to move along the movement guides in the Y coordinate, located horizontally on the machine base, while the movement guides in the X coordinate, which are perpendicular to the movement guides, are installed on the Y coordinate, which fixed on the base with the help of racks, and on the rails with the possibility of moving along them, a plate is fixed on which the guiding movements along the Z coordinate are installed, along which can move the body with the milling head mounted on it, while the devices for moving along the X, Y, Z coordinates are respectively made in the form of screw-nut pairs, the screws of which are connected to the shafts of the drive motors, and the nuts are connected to the planes of the moving nodes, and when processing the surface of a workpiece with a complex contour consisting of two or more sections of different shapes, including the relative movement of the end mill and the workpiece, when processing a shaped and intersecting straight part s contour, end mill continuously moves along a common path, which is defined by the equation: where x, y - coordinates in a plane perpendicular to the axis of the cutter, wherein the cutter is moved; A = 0.1, B = -1.5 · 10, m = 4, n = 2, while the parameters of the common path for different sections and the diameter of the cutter are set such that they provide processing of the contoured section of the contour outlined in one or two arcs of circles, characterized in that on the desktop there is an additional table for attaching the workpiece, which is made rotary

Claims

An CNC machining center containing a base with a working table mounted on it, which has the ability to move along the movement guides in the Y coordinate, located horizontally on the machine base, while the movement guides in the X coordinate, which are perpendicular to the movement guides, are installed on the Y coordinate, which fixed on the base with the help of racks, and on the rails with the possibility of moving along them, a plate is fixed on which the guiding movements along the Z coordinate are installed, along which can move the body with the milling head mounted on it, while the devices for moving along the X, Y, Z coordinates are respectively made in the form of screw-nut pairs, the screws of which are connected to the shafts of the drive motors, and the nuts are connected to the planes of the moving nodes, and when processing the surface of a workpiece with a complex contour consisting of two or more sections of different shapes, including the relative movement of the end mill and the workpiece, when processing a shaped and intersecting straight part s contour, end mill continuously moves along a common path, which is defined by the equation:

where x, y are the coordinates in the plane perpendicular to the axis of the cutter in which the cutter is moved; A = 0.1, B = -1.5 · 10 ^-4 , m = 4, n = 2, while the parameters of the common path for different sections and the diameter of the cutter are set such that they provide processing of the contoured section of the contour outlined one by one or two arcs of circles, characterized in that on the desktop there is an additional table for attaching the workpiece, which is made of a rotary-swing two-axis with direct drives, built-in braking devices and absolute rotation sensors for rigid fixation during processing and monitoring the angular position of the table plate, and mounted with the possibility of swinging relative to the horizontal axis perpendicular to the axis of the machine spindle by means of a support shaft mounted in a double-row radial roller bearing and a drive shaft mounted in a radial thrust roller bearing, wherein said bearings are installed in the holes of the vertical base eyes and in the rotary on the table on the radial thrust bearing there is a faceplate rotating relative to the vertical axis, and its rotation is provided by a direct drive with built-in m an engine consisting of a rotor and a stator, the rotor mounted on the drive shaft on a coupling made in the form of an elastically deformable shell, and the rotation angle of the faceplate and its fixation in a predetermined position is provided by a sensor and a braking device consisting of a coupling made in the form of an elastically deformable shell, while the clutch interacts with the sleeve, rigidly connected to the faceplate and the glass of the hydraulic cylinder formed by the glass, cover and piston, placed coaxially with the housing of the rotary table, and swing e table about a horizontal axis is provided by a direct drive with integrated torque motor, sensor and braking device, the same rotation of the drive chuck.