A kind of transmission device of planetary coating machine
Technical field
The utility model relates to the transmission device of planetary coating machine.
Background technology
Automatic coating machine is for workpiece is carried out to application, and under motor drives, coating unnecessary on workpiece is thrown away workpiece by main shaft High Rotation Speed.TaiWan, China application case number is that 102208776 novel description has been announced one and soaked and get rid of paint apparatus for coating, this device is a kind of planetary many basket devices, to stop producing a tangential acceleration because moment is anxious on planetary toothed disc, and utilize and increase anxious frequency of stopping of moment, allow soak and get rid of the object of paint in basket and change at any time position, make single object get rid of paint with different angles, will soak at least one object getting rid of in paint can and evenly get rid of paint.This apparatus structure complexity, maintenance is inconvenient.The utility model patent of China's application number 201320502777.9 discloses a kind of planetary gears of automatic coating machine, comprise framework, the top of this framework is fixed with bearing block, in this bearing block, be provided with a power transmission shaft, the bottom of this power transmission shaft is connected with a drying dish, drying dish lower end Central Symmetry be provided with 2-8 planetary gear, described planetary below is provided with planet carrier, planet carrier is provided with the solar energy engaging with each planetary gear respectively, planetary gear will, around sun gear rotation revolution, be provided with workpiece basket under each planetary gear.The revolution speed of above-mentioned planetary gears and rotational velocity can not regulate separately, and namely the revolution speed of workpiece basket and rotational velocity can not regulate separately.Chinese Patent Application No. is that 201120309066.0 the disclosed Novel automatic coating machine of utility model patent is single basket structure.
Utility model content
The purpose of this utility model is to propose a kind of transmission device of planetary coating machine, this transmission structures is relatively simple, and the revolution speed to workpiece basket and rotational velocity regulate to reach the best revolution speed and the rotational velocity that are applicable to workpiece coating respectively.
For achieving the above object, the utility model is taked following technical scheme: a kind of transmission device of planetary coating machine, there is main shaft, planetary gears, operation basket and frame, planetary gears comprises sun gear and engages with sun gear and equally distributed 2 to 4 planetary gears, main shaft is made up of hollow spindle and central principal axis, hollow spindle is by the hollow spindle bearing block support being fixed in frame, between central principal axis and hollow spindle, connect by a pair of central principal axis bearing, hollow spindle and central principal axis drive operation by hollow spindle reducing motor and central principal axis reducing motor respectively, the lower end of hollow spindle connects a centrifugal pan, the lower end of central principal axis is stretched out centrifugal pan and is connected with sun gear, on centrifugal pan, be evenly distributed with the through hole consistent with planetary gear quantity, in each through hole, be provided with a planet wheel spindle bearing block, each planet wheel spindle inserts in corresponding planet wheel spindle bearing block, planet wheel spindle is hollow shaft, and each planet wheel spindle connects a set of workpiece basket clamping device, fixes one for controlling successively the cylinder of workpiece basket clamping device operation in frame.
Every cover workpiece basket clamping device comprises and ejects axle, compression plate, positioning disk, displacement disc, eject axle in hollow planet wheel spindle and both are slidably matched, positioning disk is fixed on the lower end of planet wheel spindle, compression plate is enclosed within on planet wheel spindle and positioning disk and covers on wherein, compression plate energy relative positioning dish moves axially, displacement disc is connected to and ejects the lower end of axle and the dish institute of being positioned covers, between compression plate and displacement disc, be provided with the equally distributed some pull lever through positioning disk, between positioning disk and compression plate, be provided with equally distributed some spring positioning screws, on spring positioning screw, cover has back-moving spring, workpiece basket is clamped between compression plate and positioning disk.
On the bottom surface of positioning disk, be connected with workpiece basket locating cover, the bottom surface that ejects axle is provided with centre bore, is provided with a push rod spring in centre bore, and the lower end of push rod spring is against on workpiece basket locating cover.
Between described compression plate and positioning disk, be provided with equally distributed some guide pillars, the top of guide pillar and the linear bearing or the axle sleeve that are embedded in compression plate through hole are slidably matched, and the lower end of guide pillar is connected on positioning disk.
Described positioning disk is stairstepping, and the aperture of the centre bore of compression plate is greater than the diameter of positioning disk epimere.
The top of described compression plate is provided with the spring mounting hole for described back-moving spring is installed, spring mounting hole is stretched out in the upper end of spring positioning screw, spring mounting hole aperture place is provided with spring port lid, and the upper end of back-moving spring is against on the inner roof wall of spring port lid, in the groove of lower end in positioning disk.
Described compression plate is provided with two legs, and the bottom of leg is provided with inside 90 ° of bending flangings, and the bottom margin of positioning disk has annular ring, and the edge suitable for reading of workpiece basket is crushed between the flanging of leg and the annular ring of positioning disk of compression plate.
The utlity model has following good effect: the utility model is when central principal axis rotation and hollow spindle while not rotating, and planetary gear rotation, drives operation basket to realize rotation.When hollow spindle rotation and central principal axis while not rotating, centrifugal pan rotates, and drives the clamping device on centrifugal pan to rotate, and at this moment operation basket is realized revolution.If in the time that central principal axis and hollow spindle rotate simultaneously, by adjusting the speed ratio of diaxon, reach the best revolution and the rotational velocity that are applicable to workpiece coating, the masking liquid of workpiece groove and dead angle storage all can be thrown away, improve the coating quality of workpiece.The utility model is compared with the transmission device of the coating machine of apply the brakes structure, relatively simple in structure.The utility model energy continuous rotation, compares with the coating machine with workpiece basket leaning device, saves the working time that workpiece basket tilts, and increases work efficiency.
Brief description of the drawings
Fig. 1 is overall structure view of the present utility model.
Fig. 2 is the top view of embodiment 1.
Fig. 3 is the enlarged drawing of workpiece basket clamping device.
Fig. 4 is the top view of embodiment 2.
Fig. 5 is the top view of embodiment 3.
Detailed description of the invention
Embodiment 1
See Fig. 1 to Fig. 3, the present embodiment has main shaft 4, planetary gears 7 and frame 16, and planetary gears 7 comprises sun gear 7-1 and engages with sun gear 7-1 and equally distributed 3 planetary gear 7-2.
Described main shaft 4 is made up of hollow spindle 4-1 and central principal axis 4-2, is fixed with hollow spindle bearing block 5 in frame 16, and hollow spindle 4-1 is supported by the pair of bearings in hollow spindle bearing block 5.Between central principal axis 4-2 and hollow spindle 4-1, connect by two central principal axis bearings 2, two central principal axis bearings 2 are separately positioned on hollow spindle 4-1 two ends, and central principal axis 4-2 is supported by two central principal axis bearings 2.
The upper end of hollow spindle 4-1 is provided with belt wheel 3-1, and the upper end of central principal axis 4-2 is provided with belt wheel 3-2, between hollow spindle 4-1 and hollow spindle reducing motor 1-1, is with transmission, between central principal axis 4-2 and central principal axis reducing motor 1-2, is with transmission.
The lower end of described central principal axis 4-2 is stretched out centrifugal pan 6 and is connected with sun gear 7-1.The lower end of described hollow spindle 4-1 connects a centrifugal pan 6, is evenly distributed with 3 through holes consistent with planetary gear quantity on centrifugal pan 6, is provided with a planet wheel spindle bearing block 8 in each through hole, in planet wheel spindle bearing block 8, is provided with pair of bearings.The planet wheel spindle 7-3 of planetary gear 7-2 is hollow shaft, and 3 planet wheel spindle 7-3 insert respectively in planet wheel spindle bearing block 8, is respectively supported by the pair of bearings in corresponding planet wheel spindle bearing block 8.
Corresponding each planet wheel spindle 7-3 arranges a set of workpiece basket clamping device 9.Every cover workpiece basket clamping device 9 comprises and ejects axle 9-1, compression plate 9-4, positioning disk 9-7, displacement disc 9-9.
Describedly eject axle 9-1 and hollow planet wheel spindle 7-3 is slidably matched.Described positioning disk 9-7 is fixed on the lower end of planet wheel spindle 7-3.Described compression plate 9-4 is enclosed within planet wheel spindle 7-3 above and positioning disk 9-7 is covered on wherein.Described positioning disk 9-7 is up-small and down-big stairstepping, the aperture of the centre bore 9-4-1 of compression plate 9-4 is greater than the diameter of positioning disk 9-7 epimere, positioning disk 9-7 epimere can be entered in the centre bore of compression plate 9-4, and compression plate 9-4 can move axially by relative positioning dish 9-7.Described displacement disc 9-9 be connected to eject the lower end of axle 9-1 and be positioned dish 9-7 cover.Compression plate 9-4 is provided with two leg 9-4-2, the bottom of leg 9-4-2 is provided with inside 90 ° of bending flanging 9-4-3, the bottom margin of positioning disk 9-7 has annular ring 9-7-1, and the edge suitable for reading of workpiece basket 10 is crushed between the flanging 9-4-3 of leg and the annular ring 9-7-1 of positioning disk of compression plate 9-4.
Between described compression plate 9-4 and displacement disc 9-9, connected by equally distributed 4 pull lever 9-8 that pass positioning disk 9-7.Compression plate 9-4 is stretched out in the upper end of pull lever 9-8, is connected with double nut on external part.
Between described positioning disk 9-7 and compression plate 9-4, be provided with equally distributed 2 spring positioning screw 9-5, the upper cover of spring positioning screw 9-5 has back-moving spring 9-6.The top of described compression plate 9-4 is provided with the spring mounting hole 9-4-4 for above-mentioned back-moving spring 9-6 is installed, spring mounting hole 9-4-4 is stretched out in the upper end of spring positioning screw 9-5, spring mounting hole aperture place is provided with spring port lid 9-3, spring port lid 9-3 is connected on compression plate 9-4 with screw rod, the top of spring port lid 9-3 and be provided with double nut 9-2 on spring positioning screw 9-5, the upper end of back-moving spring 9-6 is against on the inner roof wall of spring port lid 9-3, in the groove of lower end in positioning disk 9-7.
Between described compression plate 9-4 and positioning disk 9-7, be provided with equally distributed 4 guide pillar 9-12, the top of guide pillar 9-12 and the linear bearing 9-11 or the axle sleeve that are embedded in compression plate 9-4 through hole are slidably matched, and the lower end of guide pillar 9-12 is connected on positioning disk 9-7.
On the bottom surface of positioning disk 9-7, be connected with workpiece basket locating cover 9-10, between workpiece basket locating cover 9-10 and displacement disc 9-9, there is gap, the bottom surface that ejects axle 9-1 is provided with centre bore, is provided with a push rod spring 9-13 in centre bore, and the lower end of push rod spring 9-13 is against on workpiece basket locating cover 9-10.The setting of push rod spring 9-13 makes the stable of workpiece basket clamping device 9, reduces noise.
In frame, fix one and eject the cylinder 11 that axle 9-1 is corresponding, the piston rod of cylinder 11 is facing to the movement locus that ejects axle 9-1.
The upper end of planet wheel spindle 7-3 is connected with the first positioning contact seat 13, and in frame 16, the position of corresponding the first positioning contact seat is provided with first sensor 12.The upper end of centrifugal pan is connected with the second positioning contact seat 15, and in frame, the position of corresponding the second positioning contact seat 15 is provided with the second sensor 14.
When the utility model application, in the time that rotating, hollow spindle reducing motor 1-1 drives hollow spindle 4-1 rotation by band transmission, hollow spindle 4-1 drives centrifugal pan 6 to rotate, centrifugal pan 6 rotates with workpiece basket clamping device 9, at this moment workpiece basket is in revolution state, and in the time that central principal axis reducing motor 1-2 rotates, central principal axis 4-2 drives planet wheel spindle 7-3 rotation by sun gear 7-1, planetary gear 7-2, planet wheel spindle 7-3 drives workpiece basket clamping device 9 to rotate, and now workpiece basket is in autorotation.In the time that central principal axis and hollow spindle rotate simultaneously, the revolution of workpiece basket and rotation are carried out simultaneously, by adjusting the speed ratio of diaxon, reach the best revolution and the rotational velocity that are applicable to workpiece coating.
Workpiece basket clamping device 9 of the present utility model is not depressed into while ejecting axle 9-1 at the piston rod of its cylinder, and workpiece basket clamping device 9 is in clamp position.When stretching under the piston rod of cylinder, press down and eject axle 9-1, when ejecting axle 9-1 and moving down, pull compression plate 9-4 to move down along guide pillar 9-12 by displacement disc 9-9 by pull lever 9-8, gap between flanging 9-4-3 on the leg 9-4-2 of compression plate 9-4 and the annular ring 9-7-1 of positioning disk 9-7 is strengthened, and workpiece basket can be removed.When on the piston rod of cylinder when contracting, under the effect of back-moving spring 9-6, eject axle 9-1 and reset, compression plate 9-4 resets.In the time that workpiece basket revolves round the sun, three eject axle 9-1 and pass through in turn the below of cylinder 11.
Embodiment 2
See Fig. 4, the planetary gears of the present embodiment has 2 planetary gears, so have 2 cover workpiece basket clamping devices.Concrete structure is referring to embodiment 1.
Embodiment 3
See Fig. 5, the planetary gears of the present embodiment has 4 planetary gears, so have 4 cover workpiece basket clamping devices.Concrete structure is referring to embodiment 1.