The planer type numerical control carving mills machine
The utility model relates to a kind of carving and mills machine, in the die manufacture carving, mill finishing step, the planer type numerical control carving that also can be used to process various handicrafts and concave-convex curved surface pattern simultaneously mills machine.
In recent years, in the Mould Machining industry, adopt the Electric Discharge Machining mode traditionally, the researcher is exploring a kind of more perfect processing mode always and is substituting traditional approach, produces the crackle of profile microcosmic because of electric machining to avoid surface of the work.Owing to the be processed with advantage of spark machined to dark die cavity, deep trouth narrow slit, but there is certain degree of difficulty in die cavity, decorative pattern or pattern die cavity and the big isostructural processing of profile best bright finish of fine complexity, the while is many because of its processing technology, the time is longer.And the high-speed milling mode has the big advantage of root in the processing to these moulds, simultaneously, is accompanied by the development that can process the high hardness material cutting-tool engineering, and the application of high-speed numeric control milling machine in Mould Machining more and more widely; Along with the raising of mould industry to the finished surface requirement, require tool radius more and more littler, so another kind of processing equipment has appearred in the high-speed milling Mould Machining---carving mills machine.It not only has the high efficiency brute force and rough mills half finish-milling working ability, has the meticulous engraving function of high suface processing quality simultaneously, makes efficient and excellent surface quality be able to organic unity.At present, existing numerical controlled engraving and milling device all is that the fixed-beam carving mills machine, because the restriction of fixed-beam structure, the size of its clamping workpiece can not be too big, form less relatively, in addition, the overall structure of the lathe of fixed-beam structure is also bigger, and lathe bed and workbench are splits, both process respectively, adopt afterwards bolt with stationary table on lathe bed, certainly exist alignment error between the two, influenced the machining accuracy of lathe.
Summary of the invention
Goal of the invention: the purpose of this utility model is the deficiency that overcomes existing technology, provide a kind of can the relatively large workpiece of clamping, stroke increases and overall structure is light and handy, machining accuracy is higher planer type numerical control carving mills machine.
Technical scheme: the utility model provides a kind of planer type numerical control carving to mill machine, and it comprises that planer-type lathe bed, workbench, crossbeam, vertical feed ram and control carving mill the numerical control unit of each parts work of machine; Described planer-type lathe bed is made of base and the column that is arranged on the base both sides; Beam erection is on the guide rail of the column of both sides and can slide along it, and crossbeam is connected with drive unit on being installed in column; The vertical feed ram is connected with guide rail on the crossbeam by connecting plate and slides along guide rail, and connecting plate is connected the reciprocating motion of realization vertical feed ram on Y direction with lateral driver device on being installed in crossbeam; Workbench is installed on the base.
Preferably, described drive unit is to be installed in respectively on the column of both sides, thereby form the both-end driven by servomotor, the position of centre of gravity of driving center and crossbeam is more approaching, thereby guaranteed the rigidity and the precision of cutter any zone cutting in X, Y plane, this has also improved the stability of CNC milling machine greatly.This drive unit is made up of servomotor, ball-screw, yielding coupling, holder and the nut that is fixed on the crossbeam both sides; Ball-screw one end is connected with servomotor on being installed in column by yielding coupling, and the other end is connected with holder on being arranged on column; Ball-screw cooperates formation screwfeed kinematic pair with nut.The nut that the crossbeam both sides are provided with is connected with the ball-screw that is provided with on two heel posts respectively, thereby has guaranteed that crossbeam is the X-direction reciprocating motion along ball-screw.This design has reduced cost satisfying on the basis of instructions for use.
Preferably, planer-type lathe bed of the present utility model and workbench can adopt the founder to be processed as an integral body.Because planer-type lathe bed and workbench one, good rigidly not only, and do not have alignment error between the two, long-time use can not influence machining accuracy.
In the utility model, described lateral driver device is made up of the nut that is installed in servomotor, ball-screw, yielding coupling, the holder on the crossbeam and be fixed on the vertical feed ram.Ball-screw one end is connected with servomotor on being installed in crossbeam by yielding coupling, and the other end is connected with holder on being arranged on crossbeam; Ball-screw cooperates formation screwfeed kinematic pair with nut.
In the utility model, the employing crossbeam is located at gantry vertical structure on the left and right pillar, and the transmission of main shaft direct connection is simple in structure, the frame structure sealing.Main shaft can adopt electric main shaft, and adopt the frequency conversion electrodeless variable-speed, rotating speed maximum speed scope is in 2000-18000rpm, and the carving that can be used for moderate duty mills processing, and the relative fixed beam type digital control carving of this structure mills machine can big (1.6 meters * 2.5 meters * 1.1 meters) workpiece of clamping.
In the utility model, described base fits by bolting with the column that is arranged on the base both sides.
Beneficial effect: this practical described planer type numerical control carving mills machine, and lathe bed adopts gantry vertical structure, and existing relatively fixed beam type digital control carving mills machine can the big workpiece of clamping.Planer-type lathe bed and workbench one, good rigidly not only, and do not have alignment error between the two, long-time use can not influence machining accuracy; Crossbeam adopts the both-end drive unit, and the position of centre of gravity of driving center and crossbeam is more approaching, has improved the stability of lathe greatly.
Description of drawings
Be illustrated as structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 1, a kind of planer type numerical control carving described in the utility model mills machine, and it comprises planer-type lathe bed, workbench 2, left and right pillar 3, crossbeam 4, connecting plate 5, slide plate 6 and is used to control carving mills the numerical control unit of each parts work of machine.The planer-type lathe bed is made of base 1 and the column 3 that is arranged on the base both sides, and workbench 2 is located on the base 1 of planer-type lathe bed, and is cast into one with base 1, and the column 3 of the left and right sides is located at the both sides of base 1 respectively.The crossbeam 4 that moves along Y direction is located on the left and right pillar 3 and by drive unit and drives, and this drive unit is the both-end drive unit, and it comprises servomotor 8, ball-screw 9, yielding coupling, holder 10 and is fixed on the nut 11 of crossbeam 4 both sides.Ball-screw 9 one ends are connected with servomotor 8 on being installed in column 3 by yielding coupling, and the other end is connected with holder 10 on being arranged on column 3; Ball-screw 9 cooperates formation screwfeed kinematic pair with nut 11.The connecting plate 5 that moves along X-axis is connected with the guide rail 7 on the crossbeam 4 and moves along it, and guide rail 7 is installed on the same plane of crossbeam 4.Vertical feed ram along the feeding of Z axle is installed on the connecting plate 5.Numerical control unit is connected with each mechanical part respectively, and controls its motion.Planer type numerical control carving described in the utility model mills machine, and lathe bed adopts gantry vertical structure, and the workpiece of big (1.6 meters * 2.5 meters * 1.1 meters) can be installed.
Planer type numerical control carving described in the utility model mills machine, machine adopted gantry vertical spindle structure, the direct connection transmission, simple in structure, the frame structure sealing, main shaft adopts electric main shaft, and adopts the frequency conversion electrodeless variable-speed, rotating speed maximum speed scope is in 2000-18000rpm, and the carving that can be used for moderate duty mills processing.The moving servomotor 8 that adopts of y-axis shift adds ball-screw 9 drivings, belongs to the control of semiclosed loop form, can reach degree of precision.Accurate rolling guide-rail pairs and precise ball screw pair are adopted in lathe X, Y, the motion of Z three-dimensional, all guide rails, leading screw all adopt oil pump centralized lubrication form, guaranteeing that oil pump has under the prerequisite of enough lubricating oil, almost mustn't any maintenance work can use, not wear and tear for a long time.The transmission of X, Y, Z three-dimensional adopts accurate diaphragm yielding coupling directly to connect with servomotor, flexible movements, fluent creeping, no backlass.
Thinking and method that the utility model provides a kind of planer-type carving to mill machine; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each component part not clear and definite in the present embodiment is realized.