Background technology
In machining equipment, grinding machine is a kind of conventional fine machining tool, there are internal grinder, cylindrical grinder, surface grinding machine, cutter and tool grinding machine etc., vertical shaft and horizontal axis two type is divided into by grinding spindle distribution form, conventional grinding machine generally only has a bistrique, and function singleness, the grinding machine of grinding cylindrical cannot flat surface grinding, and the grinding machine of grinding plane cannot cylindrical grinding.Recently, also some many bistriques compound grinding machines have been there are, as CN103817582A describes a kind of numerical control internal-external circle and end face compound grinding machine, it is provided with three horizontal bistriques, mainly for the endoporus of gear various in automobile industry, end face, the fine finishining of the rotary surfaces such as cylindrical, CN103302558A describes a kind of numerical control compound grinding machine and method for grinding is also for large size bearing or fillet of gear, the fine finishining grinding of cylindrical and end face, these are all the special purpose grinders for specific component, and for some axial workpieces, as automobile power steering power shaft hydraulic fluid port limit, polyhedron axle, cylindrical, axial groove, end face etc., once be installed and how realize high-precision grinding, and the high-precision grinding of non-round surface as this kind of in camshaft, current existing grinding machine and technology also cannot realize.
Summary of the invention
The object of the present invention is to provide the non-round surface compound grinding machine of a kind of superhigh precision numerical control, mainly for axial workpiece, once be installed and can realize the grinding of cylindrical, axial groove, face of a polyhedron, plane, end face, end face groove, the conical surface, especially also can be used for the accurate grinding processing of non-round surface (as camshaft).
Above-mentioned purpose of the present invention is achieved in that provides a kind of superhigh precision numerical control non-round surface compound grinding machine, it comprises lathe bed 1, column 2, emery wheel, it is characterized in that: described lathe bed 1 is provided with Z axis moving guide rail 10, Z axis moves drive system 11 and drives workbench 3 to move along Z-direction, workbench 3 is provided with the headstock 2, tailstock 9 and measurement mechanism A5, the headstock is provided with rotary main shaft, C axle rotary drive system 21 and workpiece chuck 4, tailstock is provided with top 8, described lathe bed is also provided with X-axis moving guide rail 12, X-axis moves drive system 13 and drives column 15 to move along X-direction, column is provided with horizontal axis abrasive disc 20 and Y-axis moving guide rail 16, Y-axis moves drive system 17 and drives Y-axis slide plate 14 to move along Y direction, thus drive the vertical shaft abrasive disc 7 that is arranged on Y-axis slide plate 14 and measurement mechanism B18 to move along Y direction,
Top 8 axis collinear that rotary main shaft axis and tailstock 9 that the described headstock 2 is installed are installed, and be parallel to Z axis, the C axle rotary drive system 21 driving rotary main shaft to rotate is the servomotor of direct connection;
The described measurement mechanism A5 be arranged on workbench 3 is arranged on the piston rod front end of oil cylinder or cylinder, oil cylinder or cylinder are fixedly mounted with on the table, its measuring center height and workpiece rotation contour, measurement mechanism A5 can be moved along X-direction by oil cylinder or air cylinder driven, and this measurement mechanism A5 is in-process measuring instrument;
Described for driving column and the horizontal axis abrasive disc 20 be installed on it, vertical shaft abrasive disc 7 to move drive system 13 for linear electric motors along the X-axis of X-axis movement together with measurement mechanism B18;
Described Y-axis moves drive system 17 and Z axis, and to move drive system 11 be all the ball screw assembly, by driven by servomotor;
Described its rotation axis parallel of horizontal axis abrasive disc 20 that to be arranged on column 15 is in workpiece rotation, perpendicular to stud sides facade, horizontal axis abrasive disc 20 is positioned at column side, grinding wheel spindle passes column cylinder from column side, horizontal axis abrasive disc and grinding wheel spindle are driven by motor, and dynamic balancing automatic regulating apparatus is housed;
Describedly be arranged on its rotation of vertical shaft abrasive disc 7 on Y-axis slide plate 14 perpendicular to horizontal plane, be parallel to Y direction, and be in before Horizontal sand wheel disc rotation, vertical shaft abrasive disc main shaft 19 or driven by motor, or be electro spindle;
The described measurement mechanism B18 be arranged on Y-axis slide plate 14 is arranged on the piston rod front end of oil cylinder or cylinder, oil cylinder or cylinder are packed on Y-axis slide plate 14, measurement mechanism B18 can be moved up and down along Y direction by oil cylinder or air cylinder driven, and this measurement mechanism B18 is on-line measurement probe;
The non-round surface composite grinding of described superhigh precision is that the C axle by being rotated by the Serve Motor Control workpiece that directly connects links to differ to mend with the X-axis being controlled column and the horizontal axis abrasive disc 20 be installed on it and vertical shaft abrasive disc 7 movement by linear electric motors and realizes.
The non-round surface compound grinding machine of superhigh precision numerical control of the present invention, has effect useful as follows:
The non-round surface compound grinding machine of this superhigh precision numerical control, owing to being provided with horizontal axis abrasive disc and vertical shaft abrasive disc, such grinding machine has possessed horizontal axis abrasive disc and vertical shaft abrasive disc feature simultaneously, workbench is provided with the headstock and tailstock, workpiece process distortion is made to drop to minimum, pass through X-axis, Y-axis, Z axis and C axle four axis servomotors precisely control, achieve the function of composite grinding, workpiece is once installed not only can grinding cylindrical, plane, groove, prism polyhedron, end face, also mend the non-round surface of grinding by C axle and X-axis interlock difference, C axle directly drives and ensure that C axle high accuracy, X-axis adopts linear electric motors driving to eliminate and drives the reciprocal gap of bringing with leading screw, on-line measurement checkout gear is installed, process closed-loop control, impart the quality of this grinding machine superhigh precision.This superhigh precision numerical control non-round surface compound grinding machine has that machining accuracy is high, widely applicable, production efficiency high.
Below in conjunction with drawings and Examples, the non-round surface compound grinding machine of superhigh precision numerical control of the present invention is described further.
Detailed description of the invention
With reference to shown in Fig. 1, workbench 3 is provided with the headstock 2, tailstock 9 and measurement mechanism A5, after workpiece chuck 4 card engaging workpiece, tailstock centre 8 is by workpiece pre-tightening, Z axis moves drive system 11 and drives workbench 3 to make workpiece move to correct position along Z-direction, by cylinder or oil cylinder, measurement mechanism B is moved down, initial measurement and location are carried out to workpiece, and then move left and right for selection horizontal axis abrasive disc 20 or process with vertical shaft abrasive disc 7, measurement mechanism A5 on workbench by cylinder or hydraulic oil cylinder driving near workpiece, pass through X-axis, Y-axis, grinding control is carried out in Z axis and the suitable driving of C axle and interlock.Wherein, whether Y-axis is responsible for vertical shaft abrasive disc 7 and is come into operation and vertical shaft abrasive disc 7 lower mobile and feeding in the Y-axis direction; X-axis is responsible for the accurate radial feed of horizontal axis abrasive disc 20 or vertical shaft abrasive disc 7, and C axle is responsible for location of workpiece calibration and processing orientation, and meanwhile, C axle also can make workpiece rotate with speed that is suitable, that determine; Z axis is responsible for that workpiece spindle is selected to working position selection, axial feed, cross grinding feeding, processing grinding wheel dish, the coming into operation of measurement mechanism B, and the processing work 6 be arranged on workbench 3 also can be made to produce suitable reciprocating vibration along Z axis as needed Z axis.Wherein, C axle directly drives and ensure that C axle high accuracy, X-axis adopts linear electric motors driving to eliminate and drives the reciprocal gap of bringing with leading screw, C axle and X-axis precisely link and differ from and mend, once be installed and not only can realize the grinding of cylindrical, axial groove, face of a polyhedron, plane, end face, end face groove, the conical surface, especially also can be used for the accurate grinding processing of non-round surface (as camshaft), on-line measurement checkout gear is installed, whole process closed-loop control, guarantees to realize superhigh precision grinding.
Above-described is only the preferred embodiments of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the principle of the invention and core concept, some distortion and improvement can also be made, also be considered as belonging to protection scope of the present invention.