A kind of main shaft connection structure of CNC planer type milling machineTechnical field
The present invention relates to main shaft connection structure fields, more particularly, to a kind of main shaft connection structure of CNC planer type milling machine.
Background technique
Planer-type milling machine abbreviation gantry mill is the milling machine with portal frame and long horizontal lathe bed.It can be used on planer-type milling machineIt is more that milling cutter simultaneous processing surface, machining accuracy and production efficiency are relatively high, suitable in batch with processed mass productionThe plane and inclined-plane of large-scale workpiece, the also processable space curved surface of CNC planer type milling machine and some special type parts, due to existing dragonThe fit system of door milling machine spindle and motor is single, causes revolving speed when processing that can not change, is often required to add other motors and millingHead is just able to achieve finishing or roughing.
Summary of the invention
The present invention is to overcome above situation insufficient, provides a kind of main shaft connection structure of CNC planer type milling machine, including ram,Ram top is equipped with gear-box, and transmission shaft is equipped in ram upper end, main shaft, transmission shaft and main shaft are equipped in ram lower endBetween be connected with shaft joint, main shaft pinion gear and main shaft gear wheel are led in gear-box and be successively fixedly installed in transmission shaft top,Gear-box is equipped with motor, and gear-box top surface is fixedly mounted in motor and the rotation axis of motor is led in gear-box, rotates shaft endIt is fixedly installed with motor gear, splined shaft is equipped between motor gear and transmission shaft, splined shaft biography is fixedly installed with above splined shaftMoving gear, spline shaft transmission gear and motor tooth engagement are equipped with shifting cylinder, the cylinder of shifting cylinder between splined shaft and transmission shaftBody is fixedly mounted on gear-box upper surface, and shifting cylinder telescopic rod leads down to gear-box, is equipped with and changes below the splined shaftRetaining device and connection shifting cylinder telescopic rod, splined shaft pass through shift gas by gearshift and transmission shaft linkage, gearshiftThe position of cylinder telescopic rod allows transmission shaft to convert between high-speed rotation, two working conditions that slowly run.
Further, gearshift includes: selector fork, shift gear wheel and shift pinion gear, and shift pinion gear coversIt splined shaft lower end and is slidably matched therewith, shift gear wheel is fixedly mounted in shift pinion gear, and selector fork is fixedly mounted onOn shift shift gear wheel, selector fork side is connect with shifting cylinder telescopic rod.
Further, when shifting cylinder telescopic rod, which is in, to be lower than, shift pinion gear is engaged with main shaft gear wheel, transmission shaftIn low-speed motion state.
Further, when shifting cylinder telescopic rod, which is in, to be higher than, shift gear wheel is engaged with main shaft pinion gear, transmission shaftIn high-speed motion state.
Further, gear-box top surface is fixedly installed with counterweight support.
Further, transmission shaft top surface is equipped with axis gland.
Compared with prior art, the beneficial effects of the present invention are: the main shaft connection structure of this CNC planer type milling machine can be withThe revolving speed of main shaft is adjusted by shifting cylinder, can meet high revolving speed requirement when finishing, when can also meet roughingLow-speed big demand.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following descriptionObviously, or practice through the invention is recognized.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show belowThere is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only thisSome embodiments of invention without any creative labor, may be used also for those of ordinary skill in the artTo obtain other drawings based on these drawings.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is enlarged drawing at the A of Fig. 1.
In Fig. 1 and Fig. 2: 1, main shaft, 2, shaft joint, 3, transmission shaft, 4, motor, 5, motor gear, 6, spline shaft transmission gear,7, splined shaft, 8, selector fork, 9, shift gear wheel, 10, shift pinion gear, 11, shifting cylinder, 12, main shaft pinion gear, 13,Main shaft gear wheel.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementationExample is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is commonTechnical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protectsIt encloses.
Please refer to Fig. 1 and Fig. 2, in the embodiment of the present invention, a kind of 1 connection structure of main shaft of CNC planer type milling machine, including cunningPillow, ram top are equipped with gear-box, transmission shaft 3 are equipped in ram upper end, and main shaft 1, transmission shaft 3 are equipped in ram lower endShaft joint 2 is connected between main shaft 1,3 top of transmission shaft is led in gear-box and is successively fixedly installed with 12 He of main shaft pinion gearMain shaft gear wheel 13, gear-box are equipped with motor 4, and gear-box top surface is fixedly mounted in motor 4 and the rotation axis of motor 4 leads to gearIn case, rotation shaft end be fixedly installed with motor gear 5, between motor gear 5 and transmission shaft 3 be equipped with splined shaft 7, splined shaft 7 it is upperSide is fixedly installed with spline shaft transmission gear 8, and spline shaft transmission gear 8 is engaged with motor gear 5, between splined shaft 7 and transmission shaft 3Equipped with shifting cylinder 11, the cylinder body of shifting cylinder 11 is fixedly mounted on gear-box upper surface, and 11 telescopic rod of shifting cylinder leads to downwardsTo gear-box, gearshift is installed below the splined shaft 7 and connection 11 telescopic rod of shifting cylinder, splined shaft 7 pass through shiftMechanism and transmission shaft 3 link, and gearshift allows transmission shaft 3 in high-speed rotation, low speed by the position of 11 telescopic rod of shifting cylinderIt rotates and is converted between two working conditions.
Further, gearshift includes: selector fork 8, shift gear wheel 9 and shift pinion gear 10, pinion gear of shifting gears10 sets are slidably matched in 7 lower end of splined shaft and therewith, and shift gear wheel 9 is fixedly mounted in shift pinion gear 10, selector fork 8It is fixedly mounted on shift shift gear wheel 9,8 side of selector fork is connect with 11 telescopic rod of shifting cylinder.
Further, when 11 telescopic rod of shifting cylinder, which is in, to be lower than, shift pinion gear 10 is engaged with main shaft gear wheel 13,Transmission shaft 3 is in low-speed motion state.
Further, when 11 telescopic rod of shifting cylinder, which is in, to be higher than, shift gear wheel 9 is engaged with main shaft pinion gear 12,Transmission shaft 3 is in high-speed motion state.
Further, gear-box top surface is fixedly installed with counterweight support.
Further, 3 top surface of transmission shaft is equipped with axis gland.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er QieIn the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matterFrom the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended powerBenefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claimsVariation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.