Summary of the invention
The embodiment of the invention provides a kind of desktop milling machine, planer-type desktop milling machine and combined type movement platform for solving the problem that the milling machine feed speed is slow, working (machining) efficiency is low and machining accuracy is low in the prior art.
For solving the problems of the technologies described above, the technical scheme that the embodiment of the invention adopts is:
A kind of desktop milling machine is provided, comprises X-axis motion platform, Y-axis motion platform and Z axle motion platform; Described X-axis and Y-axis motion platform include sliding platform and glide base, and the glide base of described Y-axis motion platform is fixed in the sliding platform top of X-axis motion platform; Described glide base comprises the air-float guide rail that is formed at both sides and is formed at first groove of mid portion; Described X-axis, Y-axis motion platform include linear electric motors, and described linear electric motors comprise stator and mover, and described stator is fixed on first bottom portion of groove, and described mover is fixed on the bottom surface of sliding platform, and are oppositely arranged with described stator.
As further improvement to embodiment of the invention desktop milling machine, Workbench base, main shaft, spindle drum and first column; Described first column vertically is fixed on the Workbench base, is arranged at X-axis motion platform one side; Described X-axis motion platform is arranged on the Workbench base, and described Y-axis motion platform is fixed on the X-axis motion platform, and described Z axle motion platform is arranged on the first column side, and described main shaft is arranged on the Z axle motion platform by spindle drum.
As the further improvement to embodiment of the invention desktop milling machine, described motion platform also comprises: grating chi and grating ruler reading head; Described grating chi is fixed on the madial wall of arbitrary air-float guide rail; Described grating ruler reading head is arranged at the grating chi towards first groove, one side, and is fixed in the bottom surface of described sliding platform.
As further improvement to embodiment of the invention desktop milling machine, described sliding platform bottom surface forms inverted second groove, described second groove covers the air-float guide rail of glide base both sides, and described second groove, two relative cell walls are respectively adjacent to the setting of air-float guide rail lateral wall.
As the further improvement to embodiment of the invention desktop milling machine, described air-float guide rail upper end extends outward first extension, and the groove of described second groove is along extending internally out second extension, and described second extension stretches into first extension below.
As the further improvement to embodiment of the invention desktop milling machine, described sliding platform upper surface is the plane, and is covered with a plurality of tapped through holes, and the bottom portion of groove of described glide base is the plane, and is covered with a plurality of installing holes.
As further improvement to embodiment of the invention desktop milling machine, described sliding platform surface is provided with the keyway perpendicular to the air supporting track, described glide base bottom surface is provided with the groove that is parallel to the air supporting track, described desktop milling machine also comprises movable part, described movable part projection is arranged at the keyway of X-axis sliding platform, and the groove of embedding Y-axis glide base, connect described X-axis motion platform and Y-axis motion platform.
As the further improvement to embodiment of the invention desktop milling machine, described main shaft is electric main shaft or air spindle.
For addressing the above problem, another technical scheme of the embodiment of the invention is:
A kind of planer-type desktop milling machine is provided, comprises: Workbench base, feed arrangement, main shaft, spindle drum, second column, the 3rd column and crossbeam; Described feed arrangement comprises Y-axis motion platform and Z axle motion platform; Described second, third column vertically is fixed on the Workbench base, is arranged at described Y-axis motion platform both sides; Described crossbeam two ends connect second, third column top respectively, form planer type structure; Institute's Y-axis motion platform is arranged on the Workbench base, and described Y-axis motion platform is fixed on beam side wall, and described main shaft is arranged on the Z axle motion platform by spindle drum.
As the further improvement to embodiment of the invention planer-type desktop milling machine, described feed arrangement also comprises the X-axis motion platform, and described X-axis motion platform is fixed on beam side wall, and described Z axle motion platform is arranged on the X-axis motion platform.
For addressing the above problem, another technical scheme of the embodiment of the invention is:
A kind of combined type movement platform is provided, comprises: X-axis motion platform and Y-axis motion platform; Described X-axis and Y-axis motion platform include sliding platform and glide base, and the glide base of described Y-axis motion platform is fixed in the sliding platform top of X-axis motion platform; Described glide base comprises the air-float guide rail that is formed at both sides and is formed at first groove of mid portion; Described motion platform comprises linear electric motors, and described linear electric motors comprise stator and mover, and described stator is fixed on first bottom portion of groove, and described mover is fixed on the bottom surface of described sliding platform, and is oppositely arranged with stator.
As the further improvement to embodiment of the invention combined type movement platform, described motion platform motion also comprises: grating chi and grating ruler reading head; Described grating chi is fixed on the madial wall of arbitrary air-float guide rail; Described grating ruler reading head is arranged at the grating chi towards first groove, one side, and is fixed in described sliding platform bottom surface.
As further improvement to embodiment of the invention combined type movement platform, described sliding platform bottom surface forms inverted second groove, described second groove covers the air-float guide rail of glide base both sides, and described second groove, two relative cell walls are respectively adjacent to the setting of air-float guide rail lateral wall.
As the further improvement to embodiment of the invention combined type movement platform, described air-float guide rail upper end extends outward first extension, and the groove of described second groove is along extending internally out second extension, and described second extension stretches into first extension below.
As the further improvement to embodiment of the invention combined type movement platform, the upper surface of described sliding platform is the plane, and is covered with a plurality of tapped through holes, and the bottom portion of groove of described glide base is the plane, and is covered with a plurality of installing holes.
As further improvement to embodiment of the invention combined type movement platform, described sliding platform surface is provided with the keyway perpendicular to the air supporting track, described glide base bottom surface is provided with the groove that is parallel to the air supporting track, described combined type movement platform also comprises movable part, described movable part projection is arranged at the X-axis keyway, and embed the Y-axis groove, connect described X-axis motion platform and Y-axis motion platform.
The embodiment of the invention provides a kind of desktop milling machine, planer-type desktop milling machine and combined type movement platform, on motion platform, be provided with air-float guide rail, linear electric motors and air-float guide rail be made of one make overall volume reduce, can realize high acceleration and speed, have the good dynamic response performance, improved process velocity and working (machining) efficiency; Air-float guide rail is lubricated by pressure-air simultaneously, and frictional resistance is little, behind the long-play, also can not cause wearing and tearing, the precision stability height.
The specific embodiment
Below in conjunction with drawings and Examples the embodiment of the invention is elaborated.
Seeing also Fig. 1, is the structural representation of embodiment of the invention desktop milling machine.Described desktop milling machine comprises: X-axis motion platform 2, Y-axis motion platform 3 and Z axle motion platform 4.
And please in conjunction with Fig. 2, described X-axis motion platform 2 and Y-axis motion platform 3 include sliding platform 12 and glide base 8, and the glide base 8 of described Y-axis motion platform is arranged at sliding platform 12 tops of X-axis motion platform.
Described glide base 8 comprises air-float guide rail 83 that is formed at both sides and first groove 81 that is formed at mid portion.
Described X-axis motion platform 2 and Y-axis motion platform 3 include linear electric motors 11, described linear electric motors 11 comprise stator (not sign) and mover (not sign), described stator is fixed on first groove, 81 bottoms, and described mover and stator are oppositely arranged, and is fixed on the bottom surface of described sliding platform 12.
In embodiments of the present invention, adopt triaxial movement platform, can realize three direction of principal axis feed motions, described desktop milling machine is because adopt the motion platform of same structure simultaneously, and it assembles more flexibly, safeguards also more convenient, and space availability ratio improves in addition.And because motion platform adopts the structure of linear electric motors and air-float guide rail, dynamic response height.
In another embodiment of the present invention, described desktop milling machine also comprises Workbench base 1, main shaft 5, spindle drum 6 and first column 7.
Described first column 7 vertically is fixed on the Workbench base 1, is arranged at described X-axis motion platform 2 one sides.
Described X-axis motion platform 2 is arranged on the Workbench base 1, and described Y-axis motion platform 3 is arranged on the X-axis motion platform 2, and described Z axle motion platform 4 is arranged on the side of first column 7, and described main shaft 5 is arranged on the Z axle motion platform 4 by spindle drum 6.
The know-why of the embodiment of the invention is: during energising, described X-axis motion platform 2 and Y-axis motion platform 3 are done rectilinear motion in the plane of being made of X-axis and Y-axis, be feed motion, the milling cutter on the main shaft 5 on the described Z axle motion platform 4 (not sign) can be located in described plane, also processing.Simultaneously, owing to adopt air-float guide rail, be described sliding platform 12 and there are a plurality of tiny pores on the adjoining surface of glide base 8, in the reciprocating motion process of described sliding platform 12, the pressure-air ejection is arranged from tiny pore, make to produce air film between described sliding platform 12 and the glide base 8, both are separated a little; Because be not in contact with one another, air film therebetween has lubrication between described sliding platform 12 of while and the glide base 8, and frictional resistance is very little.During energising, described sliding platform 12 is under the power drive that linear electric motors produce, and along air-float guide rail 83 rectilinear motions of described glide base 8 both sides, because of frictional resistance is very little, its dynamic respective performances is higher.
In embodiments of the present invention, adopting on the triaxial movement platform basis, increase Workbench base, main shaft, spindle drum and first column, described desktop milling machine operation is more stable.
As shown in Figure 2, in another embodiment of the present invention, described X-axis motion platform 2, Y-axis motion platform 3 or Z axle motion platform 4 comprise: grating chi 9, grating ruler reading head 10.
Described grating chi 9 and grating ruler reading head 10; Described grating chi 9 is fixed on the madial wall of arbitrary air-float guide rail 83; Described grating ruler reading head 10 is arranged at grating chi 9 towards first groove, 81 1 sides, and is fixed in the bottom surface of described sliding platform 12.Described grating ruler reading head 10 is realized the high precision position feedback to described sliding platform 12 along with sliding platform 12 motions.
Described sliding platform 12 bottom surfaces form inverted second groove (not sign), and described second groove covers the air-float guide rail 83 of glide base 8 both sides, and described second groove, two relative cell walls are respectively adjacent to air-float guide rail 83 lateral wall settings.
Described air-float guide rail 83 upper ends extend outward first extension, and the groove of described second groove is along extending internally out second extension, and described second extension stretches into first extension below
In embodiments of the present invention, by increasing grating chi 9 and grating ruler reading head 10, realize the accurate location and the processing of three feed motions, employing is set up second groove and is made that the motion platform structure is more firm in addition, moves more stable.
In another embodiment of the present invention, described sliding platform 12 surfaces are covered with a plurality of tapped through holes 121; First groove, 81 bottoms of described glide base 8 are covered with a plurality of installing holes (not sign); The bottom surface of the surface of described sliding platform 12 and glide base 8 is smooth.Help making things convenient for the stack of motion platform, improve the flexibility ratio of assembling by fixing a plurality of motion platforms such as screws, and, also be fit to the dismounting maintenance.
In another embodiment of the present invention, described sliding platform 12 surfaces are provided with the keyway 123 perpendicular to air supporting track 83, and described glide base 8 bottom surfaces are provided with the groove 85 that is parallel to air supporting track 83.Described desktop milling machine also comprises movable part (figure does not show), and described movable part projection is arranged at the keyway 123 of X-axis sliding platform, and embeds the groove 85 of Y-axis glide base, connects described X-axis motion platform 2 and Y-axis motion platform 3.
In embodiments of the present invention, by setting up keyway 123, groove 85 and movable part, make things convenient for the stack of X-axis and Y-axis, preferred, described X-axis motion platform is superimposed with the Y-axis motion platform is vertical.
In another embodiment of the present invention, described X-axis motion platform 2, Y-axis motion platform 3, Z axle motion platform 4 structures are identical, and (but this moment, described Z axle motion platform 4 was provided with similar structures such as baffle plate at its air-float guide rail end at least, to guarantee that sliding platform can not drop), it also can be described X-axis motion platform 2, Y-axis motion platform 3 structures are identical, it is X-axis motion platform 2, the mode that Y-axis motion platform 3 adopts linear electric motors 11 and air-float guide rail 83 to combine, and the mode that the Z axle both can adopt linear electric motors 11 and air-float guide rail 83 to combine can adopt the mode of linear electric motors 11 and lead screw guide rails again.
In embodiments of the present invention, can carry out different choice, make up more flexible, various informative according to different needs.
In another embodiment of the present invention, described main shaft 5 is electric main shaft or air spindle.Generally select electric main shaft for use, because select for use electric main shaft cost low.But be preferably air spindle,, be more suitable for the requirement of described desktop milling machine because of air spindle rotating speed height, main shaft circular runout and axial runout are little.
In another embodiment of the present invention, described Workbench base 1 is arranged at below of desktop milling machine, and described Workbench base 1 material is marble or granite or concrete.Because select for use this different materials cost low, but smoothness height, temperature effect are little.
A kind of desktop milling machine that the embodiment of the invention provides, on motion platform, be provided with air-float guide rail, linear electric motors and air-float guide rail are made of one make overall volume reduce, can realize high acceleration and speed, have the good dynamic response performance, improved process velocity and working (machining) efficiency; Described milling machine adopts X-axis, Y-axis and Z axle motion platform, and the X-axis motion platform is in the same place with Y-axis motion platform mutual superposition, in the feeding that has realized different directions, does not increase whole volume, but improves space availability ratio; Further, X-axis motion platform and Y-axis motion platform are installed by installing hole, and mounting structure is simple and convenient, are convenient to dismounting.
The embodiment of the invention also provides a kind of planer-type desktop milling machine, and described planer-type desktop milling machine comprises: Workbench base (can consult Fig. 1), feed arrangement (can consult Fig. 1), main shaft (can consult Fig. 1), spindle drum (can consult Fig. 1), second column (figure does not show), the 3rd column (figure does not show) and crossbeam (figure does not show).
Described feed arrangement comprises Y-axis motion platform and Z axle motion platform; Described second, third column vertically is fixed on the Workbench base, is arranged at described Y-axis motion platform both sides; Described crossbeam connects second, third column, forms planer type structure; Institute's Y-axis motion platform is arranged on the Workbench base, and described Y-axis motion platform is fixed on beam side wall, and described main shaft is arranged on the Z axle motion platform by spindle drum.
Consult Fig. 2, described Y-axis or Z axle motion platform comprise: sliding platform, glide base, grating chi and grating ruler reading head; Described glide base comprises the air-float guide rail that is formed at both sides and is formed at first groove of mid portion, described grating chi is fixed on the madial wall of arbitrary air-float guide rail, described grating ruler reading head is arranged at directly over the grating chi, and is fixed in the bottom surface of described sliding platform; Described Y-axis or Z axle motion platform also comprise linear electric motors, and described linear electric motors comprise stator and mover, and described stator is fixed on first bottom portion of groove, and described mover and stator are oppositely arranged, and are fixed on the bottom surface of described sliding platform.
In embodiments of the present invention, by adopting planer type structure, can accurately locate on Y direction, the milling cutter on the main shaft also can accurately be located in the plane of being made up of X-axis and Y-axis, implements processing.
In another embodiment of planer-type desktop milling machine of the present invention, described feed arrangement also comprises the X-axis motion platform, and described X-axis motion platform is fixed on beam side wall, and described Z axle motion platform is arranged on the X-axis motion platform.Described X-axis, Z axle motion platform and second, third column form driven portal formula structure.
In embodiments of the present invention, because main shaft can move arbitrarily on X-direction, the milling cutter on the main shaft also can accurately be located in the plane of being made up of X-axis and Y-axis, implements processing.
In embodiment of the invention desktop milling machine,, improve desktop milling machine dynamic response performance, precision, reduced volume by Z axle motion platform being set X-axis, Y-axis being set on the Workbench base and being fixed on the column side of Workbench base.
A kind of combined type movement platform of the embodiment of the invention comprises X-axis motion platform and Y-axis motion platform (seeing also Fig. 2).
Described X-axis and Y-axis motion platform include sliding platform 12, glide base 8, and described sliding platform 12 is arranged at glide base 8 tops.
Described glide base 8 comprises air-float guide rail 83 that is formed at both sides and first groove 81 that is formed at mid portion.
Described motion platform comprises linear electric motors (not sign), and described linear electric motors comprise stator and mover, and described stator is fixed on first groove, 81 bottoms, and described mover and stator are oppositely arranged, and are fixed on the bottom surface of described sliding platform 12; The glide base 8 of described Y-axis motion platform is fixed in sliding platform 12 tops of X-axis motion platform.
In embodiments of the present invention,, can improve space availability ratio by stack X-axis, Y-axis motion platform, the mode that employing simultaneously and linear electric motors combine with air-float guide rail, the dynamic response capability raising moves more stable.
In another embodiment of the present invention, described motion platform comprises: grating chi 9 and grating ruler reading head 10.
Described grating chi 9 is fixed on the madial wall of arbitrary air-float guide rail 83; Described grating ruler reading head 10 is arranged at grating chi 9 towards first groove, 81 1 sides, and is fixed in described sliding platform 12 bottom surfaces.
Described sliding platform 12 bottom surfaces form inverted second groove (not sign), and described second groove covers the air-float guide rail 83 of glide base 8 both sides, and described second groove, two relative cell walls are respectively adjacent to air-float guide rail 83 lateral wall settings.
Described air-float guide rail 83 upper ends extend outward first extension, and the groove of described second groove is along extending internally out second extension, and described second extension stretches into first extension below
In embodiments of the present invention, by increasing grating chi 9 and grating ruler reading head 10, realize the accurate location and the processing of three feed motions, employing is set up second groove and is made that the motion platform structure is more firm in addition, moves more stable.
In another embodiment of the present invention, described sliding platform 12 surfaces are covered with a plurality of tapped through holes 121; First groove, 81 bottoms of described glide base 8 are covered with a plurality of installing holes (not sign); The surface of described sliding platform and the bottom surface of glide base are smooth.
In embodiments of the present invention,, help making things convenient for the stack of motion platform, improve the flexibility ratio of assembling by fixing a plurality of motion platforms such as screws by tapped through hole 121 and a plurality of installing hole are set, and, also be fit to the dismounting maintenance.
In another embodiment of the present invention, described sliding platform 12 surfaces are provided with the keyway 123 perpendicular to air supporting track 83, and described glide base 8 bottom surfaces are provided with the groove 85 that is parallel to air supporting track 83.Described desktop milling machine also comprises movable part (figure does not show), and described movable part projection is arranged at the keyway 123 of X-axis sliding platform, and embeds the groove 85 of Y-axis glide base, connects described X-axis motion platform 2 and Y-axis motion platform 3.
In embodiments of the present invention, by setting up keyway 123, groove 85 and movable part, make things convenient for the stack of X-axis and Y-axis.
In another embodiment of the present invention, described linear electric motors 11 are the secondary types of long elementary weak point.Its low cost of manufacture, operating cost are few.
The above only for embodiments of the invention is not so limits claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.