CN103273123B - Automotive wheels hub bore coefficient control milling device - Google Patents

Automotive wheels hub bore coefficient control milling device Download PDF

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Publication number
CN103273123B
CN103273123B CN201310163837.3A CN201310163837A CN103273123B CN 103273123 B CN103273123 B CN 103273123B CN 201310163837 A CN201310163837 A CN 201310163837A CN 103273123 B CN103273123 B CN 103273123B
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CN
China
Prior art keywords
axis
leading screw
base
degree
saddle
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CN201310163837.3A
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Chinese (zh)
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CN103273123A (en
Inventor
牛韬
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江苏速力达精密科技有限公司
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Priority to CN201310163837.3A priority Critical patent/CN103273123B/en
Publication of CN103273123A publication Critical patent/CN103273123A/en
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Publication of CN103273123B publication Critical patent/CN103273123B/en

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Abstract

The present invention in order to improve automotive wheels hub bore coefficient working (machining) efficiency, and meets the demand of high accuracy processing, and design a kind of wheel bore coefficient control milling device, this device is easy to use, and machining hole system is flexible, can meet the need of market very well.Automotive wheels hub bore coefficient control milling device of the present invention comprises base, column, saddle, tool magazine, spindle motor, main shaft and main spindle box, and base is provided with Y-axis leading screw along the longitudinal direction, and this Y-axis leading screw is connected with y-axis motor; Base is also provided with Y-axis slide unit, described Y-axis slide unit is provided with 360 degree of upset workbench, described column is also provided with X-axis leading screw along base left and right directions, described saddle is also provided with Z axis leading screw along base vertical direction, Z axis leading screw is connected with Z axis motor, one slide block assembles mutually through nut seat and Z axis leading screw, and described main shaft, spindle motor and main spindle box are arranged on this slide block, are also assembled mutually by Z axis guide rail and slide block between this slide block with described saddle.

Description

Automotive wheels hub bore coefficient control milling device
Technical field
The present invention relates to a kind of automotive wheels hub bore coefficient control milling device, for the processing of aluminium alloy automobile hub hole system, belong to field of automobile.
Background technology
At present, existing NC milling device only has the machining center of external three axle overlaying structures as shown in Figure 1, the NC milling device of this structure, and working (machining) efficiency is low, and machining accuracy is not high yet.
The wheel bore coefficient control milling device of external import, structure is comparatively complicated, and equipment price is expensive, and existing processing unit (plant) still can not meet current process requirements well.
Summary of the invention
The present invention in order to improve automotive wheels hub bore coefficient working (machining) efficiency, and meets the demand of high accuracy processing, and design a kind of wheel bore coefficient control milling device, this device is easy to use, and machining hole system is flexible, can meet the need of market very well.
Concrete technical scheme of the present invention is as follows:
A kind of automotive wheels hub bore coefficient control milling device, comprise base, column, saddle, tool magazine, tool magazine support, spindle motor, main shaft and main spindle box, column is arranged on base, and tool magazine is by tool magazine support installing on base, and main shaft is connected with spindle motor; Wherein
Base is provided with Y-axis leading screw along the longitudinal direction, and this Y-axis leading screw is connected with y-axis motor; Base is also provided with Y-axis slide unit, there is nut seat bottom this Y-axis slide unit, this nut seat assembles mutually with Y-axis leading screw, between the mating surface of base and Y-axis slide unit, also logical Y-axis guide rail assembles mutually with Y-axis slide block, and this Y-axis guide rail and Y-axis slide block and described Y-axis leading screw are arranged in the same way;
Described Y-axis slide unit is provided with 360 degree of upset workbench, these 360 degree upset workbench comprise underframe and both sides side frame, these 360 degree upset workbench are arranged on by the side frame of both sides on the bracing frame of Y-axis slide unit both sides, wherein the side frame of 360 degree of upset workbench sides is connected by bearing with Y-axis slide unit one side stand component, Y-axis slide unit opposite side bracing frame is provided with A spindle motor, and 360 degree of another side frames of upset workbench are connected with this A spindle motor output shaft through gear;
Described column is also provided with X-axis leading screw along base left and right directions, and X-axis leading screw is assembled mutually by nut seat and saddle, and X-axis leading screw is connected with X-axis motor, and column and saddle are also assembled mutually by X-axis guide rail and slide block;
Described saddle is also provided with Z axis leading screw along base vertical direction, Z axis leading screw is connected with Z axis motor, one nut seat assembles mutually with Z axis leading screw, this nut seat and described main spindle box are fixed with one, main spindle box is equipped with main shaft, spindle motor, is also assembled mutually by Z axis guide rail and slide block between this main spindle box with described saddle.
Described column coordinates with saddle and and presss from both sides between base horizontal plane and be obliquely installed in 50-65 degree.
Described automotive wheels hub bore coefficient control milling device, is characterized in that: the underframe of described 360 degree of upset workbench is provided with tensioner assembly.
Described tensioner assembly comprises ringfeder, the ringfeder installation shaft be located in the middle part of underframe, and four groups of hydraulically operated fixtures that ringfeder periphery is arranged in corner.
Described 360 degree of upset worktable underframes are provided with four groups of regulating tanks, and described four groups of hydraulically operated fixtures to be arranged on corresponding regulating tank and adaptive with it respectively; Often parallel direction with regulating tank in the middle part of group regulating tank and be also provided with positioning spline, be also provided with positioning key bottom four groups of hydraulically operated fixtures and assemble mutually with it.
Leave between the underframe of described 360 degree of upset workbench and Y-axis slide unit and overturn interval.
the present invention compared to existing technology tool has the following advantages:
1, the present invention adopts four axle construction, and the superimposed mode of two diaxons, namely X-axis superposes with Z axis, the version that Y-axis superposes with A axle, compares existing three axle stacked systems and runs more stable.The structure that Y-axis superposes with A axle simultaneously strengthens the placement space of workpiece Y-direction, expands the scope of application of equipment.
2, central post of the present invention adopts similar planer-type crossbeam triangular structure, and rigidity is strong, more reliable and more stable, and column is set to 60 degree of inclined-planes simultaneously, selects the roller guide of high rigidity, makes two guide rail uniform force, reduce friction, be convenient to realize quick movement.Two guide rails being different from traditional gantry beam are orthogonal and arrange coupling type and to stop the structure of iron.
3, feed screw nut auxiliary structure of the present invention adopts double nut prefastening leading screw, eliminates backlass, improves machine tool accuracy.Adopt outer circulation ball-screw, quick movement can be realized.
4, the present invention devises a kind of overturn structure of uniqueness, i.e. 360 degree of upset workbench, and A axle adopts coaxial gear transmission, realizes the upset of the 4th axle, compares casting Worm and worm-wheel gearing, frame mode of the present invention almost zero abrasion, high rigidity, long-life.
5, the present invention designs ingenious, and operating efficiency is high, reduces processing cost.
Accompanying drawing explanation
Fig. 1 is the machining center of existing three axle overlaying structures.
Fig. 2 is one of structural representation of the present invention.
Fig. 3 is structural representation two of the present invention.
Fig. 4 is the structural representation one of the present invention 360 degree upset workbench.
Fig. 5 is the structural representation two of the present invention 360 degree upset workbench.
In Fig. 2-5: 1-base; 2-column; 3-saddle; 4-main spindle box; 5-Y axle slide unit; 51-bracing frame; 52-bracing frame; 6-turntable support; 7-compensating cylinder support; 8-compensating cylinder; 9-spindle motor; 10-X spindle motor; 11-A spindle motor; 12-Z spindle motor; 13-motor cabinet; 14-X axial filament thick stick; 15-X axis rail; 16-Y axis rail; 17-Z axis rail; 18-guide rail slide block; 19-main shaft; 20-spindle motor seat; 21-tool magazine support; 22-tool magazine; 23-underframe; 24-side frame; 25-side frame; 26-ringfeder; 27-hydraulically operated fixture; 271-hydraulic means; 272-hydraulic stem; 273-regulating tank; 274-positioning spline; 275-wheel hub mounting table; 28-ringfeder installation shaft; 29-oil cylinder.
Detailed description of the invention
below in conjunction with accompanying drawing, the invention will be further described:
Embodiment one:
As shown in Figure 2 and Figure 3, automotive wheels hub bore coefficient control milling device of the present invention, comprise base 1, column 2, tool magazine 22, spindle motor 9, main shaft 19 and main spindle box 4, column 2 is arranged on base 1, tool magazine 22 is arranged on base 1 by tool magazine support 21, and main shaft 19 is connected with spindle motor 9.
Base 1 is provided with Y-axis leading screw 14 along the longitudinal direction, and this Y-axis leading screw 14 is connected with y-axis motor 10; Base 1 is also provided with Y-axis slide unit 5, nut seat is had bottom this Y-axis slide unit 5, this nut seat assembles mutually with Y-axis leading screw, and between the mating surface of base 1 and Y-axis slide unit, also logical Y-axis guide rail 16 assembles mutually with Y-axis slide block 18, and this Y-axis guide rail 16 and Y-axis slide block 18 are arranged in the same way with described Y-axis leading screw;
As shown in Figure 4, Figure 5, Y-axis slide unit 5 is provided with 360 degree of upset workbench, these 360 degree upset workbench comprise underframe 23 and both sides side frame 24,25, these 360 degree upset workbench are arranged on the bracing frame 51,52 of Y-axis slide unit both sides by the side frame 24,25 of both sides, wherein the side frame 24 of 360 degree of upset workbench sides is connected by bearing with Y-axis slide unit one side stand component 52, oil cylinder 29 is also equipped with in this side stand component 52 outer end of Y-axis slide unit, and this oil cylinder 29 is connected with the axle core of bearing.Y-axis slide unit opposite side bracing frame 51 is provided with A spindle motor and gear thereof, and 360 degree of another side frames 25 of upset workbench are connected with this A spindle motor output shaft through gear.Enough upset intervals are left, to ensure that workbench realizes 360 degree of upsets between the underframe 23 of 360 degree of upset workbench and Y-axis slide unit.
Column 2 is also provided with X-axis leading screw 14 along base 1 left and right directions, and X-axis leading screw 14 is assembled by nut seat and saddle 3 phase, and X-axis leading screw 14 is connected with X-axis motor 10, and column 2 and saddle 3 are also assembled mutually by X-axis guide rail 15 and slide block;
Saddle 3 is also provided with Z axis leading screw along base vertical direction, and Z axis leading screw is connected with Z axis motor 12,
Nut seat assembles mutually with Z axis leading screw, and described nut seat and main spindle box 4 are fixed with one.Main spindle box 4 is equipped with main shaft 19, spindle motor 9 and nitrogen cylinder, is also assembled mutually by Z axis guide rail and slide block between this main spindle box 4 with described saddle.On saddle 3, returning apparatus has balance bracket 7, and slide is also equipped with compensating cylinder 8, realizes the guiding of this slide.
In structure of the present invention, column 2 coordinates with saddle 3 press from both sides between flat and base horizontal plane and is 60 degree and is obliquely installed better, runs more steady.Namely both mating surfaces adopt inclined-plane to coordinate.
The underframe 23 of 360 degree of upset workbench is provided with tensioner assembly.
Tensioner assembly comprises ringfeder 26, the ringfeder installation shaft 28 be located in the middle part of underframe, and four groups of hydraulically operated fixtures 27 that ringfeder periphery is arranged in corner.Hydraulically operated fixture 27 comprises hydraulic means 271, hydraulic stem 272 and clamp head, and clamp head is provided with wheel hub mounting table 275.
360 degree of upset worktable underframes are provided with bottom four groups of regulating tanks, 273, four groups of hydraulically operated fixtures 27 and are provided with protuberance, and to be arranged in regulating tank 273 and to join adaptation with it.Parallel direction with regulating tank 273 in the middle part of regulating tank 273 and be also provided with positioning spline 274, be also provided with positioning key bottom four groups of hydraulically operated fixtures 27 and assemble mutually with it.
Above X, Y, Z tri-guide rail of axle, sliding groove structure all adopt two guide rail, two sliding groove structure.
Embodiment two:
Workflow of the present invention:
Suitable adjustment hydraulic pressure 27 chucking position, makes it can process suitable wheel-type, is positioned over by aluminium alloy wheel hub on center expansion sleeve 26, Primary Location.By Dynamic System panel starting switch, automatically-controlled door is closed.On hydraulically operated fixture 27, four hydraulic means contact roller hub rim (pressure: 4Mpa) compress rear jig center expansion sleeve tensioner, final wheel hub location.X, Y, Z three-shaft linkage quick position, cutting fluid opens processing such as carrying out bolt hole, flange hole, decoration hole.4th axle A axle overturns suitable angle, processes valve port, chamfering and scrapes burr.After (realizing clamped one time to put in place) operation completes, each axle return reference point, hydraulic means 271 pressure release of four hydraulically operated fixtures is unclamped, and center expansion sleeve 26 pressure release is unclamped, and takes out wheel hub and machines.
main structure of the present invention
1, base---workbench---saddle
(1) column of base, workbench, saddle and lathe bed in the present invention, the first-class large foundry goods of main shaft all adopt the cast iron materials of high strength.
(2) 360 degree of upset workbench are highly sensitive, and vibration at high speed is little, and low speed is without creeping, and positioning precision is high, and servo-drive performance is excellent; Bearing capacity is large simultaneously, cuts freedom from vibration good, can improve machine tool capability characteristic, improves the precision of lathe and the service life of precision stability and lathe.
(3) X-axis drives---and servomotor is connected with ball-screw, drives workbench to move left and right on saddle, realizes X-axis feed motion, and carry out prestretched to leading screw, to improve the rigidity of leading screw.
(4) Y-axis drives---and servomotor connects with ball-screw, drives slide unit movable on lathe bed, realizes Y-axis feed motion, and carry out prestretched to leading screw, to improve the rigidity of leading screw.
2, column
(1) column adopts in-line structure, has enough bending resistances and torsional resistance.
(2) column saddle base adopts line rail.
(3) Z axis drives---and servomotor is by shaft coupling and ball-screw direct connection, and ball-screw drives main spindle box to move up and down on column, realizes Z axis feed motion.
3, main shaft
Main shaft adopts high-performance main shaft.Cutter grabbed by main shaft is lean on the butterfly spring of main shaft inside to act on the blind rivet of handle of a knife with tightening force by steel-ball type tool-broaching mechanism, is that cutter and spindle taper hole closely cooperate to realize grabbing cutter.
4, tool magazine
Disc type BT40 16T
5, lathe protect
The guide rail of lathe adopts stainless steel Telescopic protective cover; Complete machine tool is adopted and totally-enclosed protection, in case iron filings and cooling fluid are splashed, operator is worked under the environment of safety and comfort.
6, lubricating system
(1) three coordinate bearing adopts grease lubrication mode.
(2) ball screw, guide rail all adopt automatic thin oil lubricating system.
NC milling device of the present invention is mainly used in the boring of Birmasil automotive hub, and clamped one time completes the processing such as bolt hole, valve port, decoration hole, flange loss of weight blind hole, flange exhaust tank, trim locating hole and tapping.The present invention can meet the processing of Multiple Type automotive wheels hub bore herbal medicine system.

Claims (5)

1. automotive wheels hub bore coefficient control milling device, comprises base, column, saddle, tool magazine, tool magazine support, spindle motor, main shaft and main spindle box, column is arranged on base, tool magazine is by tool magazine support installing on base, and main shaft is connected with spindle motor, it is characterized in that:
Base is provided with Y-axis leading screw along the longitudinal direction, and this Y-axis leading screw is connected with y-axis motor; Base is also provided with Y-axis slide unit, there is nut seat bottom this Y-axis slide unit, this nut seat assembles mutually with Y-axis leading screw, also assembled mutually with Y-axis slide block by Y-axis guide rail between the mating surface of base and Y-axis slide unit, this Y-axis guide rail and Y-axis slide block and described Y-axis leading screw are arranged in the same way;
Described Y-axis slide unit is provided with 360 degree of upset workbench, these 360 degree upset workbench comprise underframe and both sides side frame, these 360 degree upset workbench are arranged on by the side frame of both sides on the bracing frame of Y-axis slide unit both sides, wherein the side frame of 360 degree of upset workbench sides is connected by bearing with Y-axis slide unit one side stand component, Y-axis slide unit opposite side bracing frame is provided with A spindle motor, and 360 degree of another side frames of upset workbench are connected with this A spindle motor output shaft through gear;
Described column is also provided with X-axis leading screw along base left and right directions, X-axis leading screw is assembled mutually by nut seat and saddle, X-axis leading screw is connected with X-axis motor, and column and saddle are also assembled mutually by X-axis guide rail and slide block, and column and pressing from both sides between saddle mating surface and base horizontal plane is obliquely installed in 60 degree;
Described saddle is also provided with Z axis leading screw along base vertical direction, Z axis leading screw is connected with Z axis motor, one nut seat assembles mutually with Z axis leading screw, this nut seat and described main spindle box are fixed with one, main spindle box is equipped with main shaft, spindle motor, is also assembled mutually by Z axis guide rail and slide block between this main spindle box with described saddle.
2. automotive wheels hub bore coefficient control milling device according to claim 1, is characterized in that: the underframe of described 360 degree of upset workbench is provided with tensioner assembly.
3. automotive wheels hub bore coefficient control milling device according to claim 2, is characterized in that: described tensioner assembly comprises ringfeder, the ringfeder installation shaft be located in the middle part of underframe, and four groups of hydraulically operated fixtures that ringfeder periphery is arranged in corner.
4. the automotive wheels hub bore coefficient control milling device according to claim 1,2 or 3, is characterized in that: described 360 degree of upset worktable underframes are provided with four groups of regulating tanks, and four groups of hydraulically operated fixtures to be arranged on corresponding regulating tank and adaptive with it respectively; Often parallel direction with regulating tank in the middle part of group regulating tank and be also provided with positioning spline, be also provided with positioning key bottom four groups of hydraulically operated fixtures and assemble mutually with it.
5. automotive wheels hub bore coefficient control milling device according to claim 4, is characterized in that: leave between the underframe of described 360 degree of upset workbench and Y-axis slide unit and overturn interval.
CN201310163837.3A 2013-05-07 2013-05-07 Automotive wheels hub bore coefficient control milling device CN103273123B (en)

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