CN104097894B - A kind of automatic lifting roller bed - Google Patents
A kind of automatic lifting roller bed Download PDFInfo
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- CN104097894B CN104097894B CN201410375410.4A CN201410375410A CN104097894B CN 104097894 B CN104097894 B CN 104097894B CN 201410375410 A CN201410375410 A CN 201410375410A CN 104097894 B CN104097894 B CN 104097894B
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- roller bed
- lifting
- roller
- guide
- frequency conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a kind of automatic lifting roller bed.Including lift drive mechanism, lifting guide mechanism, horizontal feed roller bed.Described lift drive mechanism includes that pedestal, lifting drive frequency conversion motor and reductor, rack and pinion drive mechanism, lifting balance mechanism；Described lifting guide mechanism includes guide wheel, guide rail, guide rails assembling seat and guide wheel mounting seat；Be provided with on described pedestal roller bed raising and lowering put in place detection switch, described horizontal feed roller bed includes drive roller, live-roller mounting bracket, feed drive device etc..The present invention operates steadily in lifting process, it is possible to achieve optional position moment stops, and simple in construction, easy for installation.Relative to synchronous belt type transmission, carrying is big, and precision is high, and lifting distance is big, uses safety, stable, durable in use, is suitable for the various technique of automobile body-in-white assembly product line.
Description
Technical field
The present invention relates to a kind of automobile body-in-white welding line field, particularly relate to a kind of automatic lifting roller bed.
Background technology
In existing automobile body-in-white welding production line, the jacking of body in white and conveying have multistation to lift Riciprocating bar type conveying simultaneously, the conveying of sled formula is drawn in single-station lifting.The former designs, installs control complexity, and the latter controls simple, flexible, the modes of many employing the latter in welding line.For the latter, structure also has various ways.Roller bed, motor is driven to drive synchronous pulley and synchronous belt transmission type dance roller bed and motor drive link formula dance roller bed including cylinder top-lifting.These three kinds of structure liftings are unstable, and precision is low.Cylinder top-lifting drives roller bed lifting stop position few, and rising or falling speed is slow, and unstable by air pressure influence process, stop position impulsive force is big.Motor drives synchronous pulley and synchronous belt transmission type dance roller bed precision to be affected by adjustable height, and lifting position is the highest, and precision is the lowest；Owing to using two Timing Belts, it is difficult to ensure that the load of two Timing Belts is identical, during therefore using, a Timing Belt fracture easily occur, cause one swing arm of roller bed to fall, roller bed tilts, and security incident occurs.And Timing Belt is difficult in roller bed bottom install and change, later maintenance cost is high.Motor drive link formula dance roller bed motor drive link formula dance roller bed is more due to coupling part hinge, and the load of each hinge axis is relatively big, the phenomenon of disconnected hinge axis easily occurs.And, bindiny mechanism rocks bigger, and to driving motor shaft to cause certain impact, potential safety hazard is bigger.
Summary of the invention
For problems of the prior art, it is an object of the invention to provide one possess tailored appearance, compact, operate steadily, precision is high, convenient later maintenance, is suitable for the automatic lifting roller bed of the features such as various body in white welding lines.
nullIn order to achieve the above object，The present invention is by the following technical solutions: a kind of automatic lifting roller bed，Including lift drive mechanism、Lifting guide mechanism、Horizontal feed roller bed，Described lift drive mechanism includes pedestal、Lifting drives frequency conversion motor and reductor、Rack and pinion drive mechanism、Balance mechanism，Described frequency conversion motor afterbody is provided with absolute value rotary encoder，Described rack and pinion drive mechanism includes driving gear、Tooth bar、Driven gear and swing arm，Described frequency conversion motor and reductor are arranged on pedestal side，Described frequency conversion motor and the output shaft of reductor are connected by key mode with driving gear，The driving gear that rotarily drives of described frequency conversion motor and reductor rotates，Described driving gear rotarily drives tooth bar horizontal linear displacement，Three slide blocks are installed bottom described tooth bar，It is horizontally installed with slide rail on described pedestal，Described slide block and the precision-fit of slide rail，Described two, two of rack motion band action roller bed driven gear synchronous axial system，Driven gear and swing arm are simultaneously attached on the axle of same driven gear，The eccentric of described swing arm is made up of needle bearing etc.，Rotated in 180 degree by swing arm，Band action roller bed Z-direction lifts.Described horizontal feed roller bed both sides are evenly distributed with four lifting guide mechanisms, and guide wheel mounting means is that it is radially orientated guide rail X or Y-direction, roll along polish guide rail Z-direction.Described X-direction refers to that the length direction of roller bed, described Y-direction refer to that the width of roller bed, described Z-direction refer to the short transverse of roller bed.
Be provided with on described pedestal roller bed raising and lowering put in place detection switch, described driving gear is near being arranged on the reductor shaft shoulder, described tooth bar is divided into syllogic and installs: one section is engaged with driving gear, additionally two sections of two ends tooth bar engages with driven gear, described driving gear and driven tooth wheel and rack mate are mounted on anti-dust protecting device, described slide rail two ends are provided with the excess of stroke detecting switch of rack motion, described driving gear and driven tooth wheel and rack mate are mounted on anti-dust protecting device, described slide rail two ends are provided with the excess of stroke detecting switch of rack motion.
Described driven gear is coaxial with balance mechanism, described driven gear both sides are respectively provided with two cast-steel chocks, described balance mechanism is arranged on outside bearing block, described balance mechanism is connected by tensioning sleeve with the axle of driven gear, described balance mechanism end is provided with needle bearing, described lifting guide mechanism includes that activity-oriented is taken turns, fixing guide rail and guide rails assembling seat, described guide wheel mounting seat is provided with pad and is adjusted, described pad ensures the rolling gap of guide wheel and guide rail, described activity-oriented wheel all uses printing type elastic washer to lock, fix guide rail and be vertically mounted on pedestal by alignment pin for described four groups.
Described horizontal feed roller bed includes drive roller, live-roller mounting bracket, feed drive device, described feed drive device includes carrying frequency conversion motor, active synchronization belt wheel, driven synchronous pulley, Timing Belt, described conveying frequency conversion motor is arranged on horizontal feed roller bed bottom, described drive roller includes power transmission shaft, drive pulley, transmission film winded roller, bearing, connecting plate, described drive pulley and transmission film winded roller pass through bonded with power transmission shaft, described power transmission shaft two ends arrange an even bearing, described bearing is fixed in live-roller mounting bracket together with connecting plate, described drive roller mounting bracket is formed by light sheet bending.
After using technique scheme, the method have the advantages that (1) present invention uses rack pinion, lifting process is steady, precision is high, mechanism performance is stable, installation is simple, convenient later maintenance.(2) lifting guide mechanism of the present invention is easy for installation, bearing capacity is high, and frictional force is little, flexible operation.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is rack pinion elevator composition of the present invention；
Fig. 3 is conveying roller bed structure schematic diagram of the present invention；
Fig. 4 is lifting guide mechanism schematic diagram of the present invention；
Fig. 5 is the parameter list of the present invention；
In figure: 1, lift drive mechanism；2, lifting guide mechanism；3, horizontal feed roller bed；10, lifting drives frequency conversion motor and reductor；11, driving gear；12, tooth bar；13, driven gear；14, slide block slide rail；15, balance mechanism；16, pedestal；20, conveying frequency conversion motor；21, active synchronization belt wheel；22, driven synchronous pulley；23, Timing Belt；24, wearing plate；25, roller bedrest；30, guide wheel；31, guide rail；32, guide rails assembling seat；33, guide wheel mounting seat.
Detailed description of the invention
Below according to Figure of description and specific embodiment, the present invention is further explained.
As it is shown in figure 1, a kind of automatic lifting roller bed, including lift drive mechanism 1, lifting guide mechanism 2, horizontal feed roller bed 3, by lift drive mechanism 1, horizontal feed roller bed 3 is under lifting guide mechanism 2 guides, it is achieved lifting.
As shown in Figure 2,3, 4, described lift drive mechanism 1 includes that pedestal 16, lifting drive frequency conversion motor and reductor 10, rack and pinion drive mechanism, balance mechanism 15, described frequency conversion motor afterbody is provided with absolute value rotary encoder, it can be with accurate recording motor stop position and feed back to PLC, and PLC can start with automatic control motor optional position, run, stop.Described rack and pinion drive mechanism includes driving gear 11, tooth bar 12, driven gear 13 and swing arm, described frequency conversion motor and reductor are arranged on pedestal 16 side, described frequency conversion motor and the output shaft of reductor are connected by key mode with driving gear 11, the driving gear 11 that rotarily drives of described frequency conversion motor and reductor rotates, described driving gear 11 rotarily drives tooth bar 12 horizontal linear displacement, three slide blocks are installed bottom described tooth bar 12, about 4 meters long tracks it are horizontally installed with on described pedestal 16, the precision-fit of described slide block slide rail 14, thus ensure that precision and the stationarity of tooth bar 12 linear movement in the horizontal direction.Described two, two of tooth bar 12 linear movement band action roller bed driven gear 13 synchronous axial system, driven gear 13 and swing arm are simultaneously attached on the axle of same driven gear 13, the eccentric of described swing arm is made up of needle bearing etc., is rotated in 180 degree by swing arm, and band action roller bed Z-direction lifts.Described horizontal feed roller bed 3 both sides are evenly distributed with four lifting guide mechanisms 2, and guide wheel 30 mounting means is that it is radially orientated guide rail 31X or Y-direction, along polish guide rail 31Z to rolling.Described X-direction refers to that the length direction of roller bed, described Y-direction refer to that the width of roller bed, described Z-direction refer to the short transverse of roller bed.In roller bed lifting process, it is ensured that front and back with the stablizing of left and right directions, thus ensure precision when roller bed lifting process optional position stops.
Be provided with on described pedestal 16 roller bed raising and lowering put in place detection switch, they feed back in time PLC roller bed lifting put in place after signal, then PLC carry out again next step instruction.Described lifting type of drive is that rack-and-pinion adds balance wheel type.Speed reducer output shaft is directly connected with driver pinion by key, under the conditions of meeting speed reducer output shaft radial force allowable, described driving gear 11 is near being arranged on the reductor shaft shoulder, in transmission distance range, in order to decrease tooth bar 12 processing cost and simplify the mounting means of tooth bar 12, described tooth bar 12 is divided into syllogic and installs: one section is engaged with driving gear 11, additionally two sections of two ends tooth bar 12 engages with driven gear 13, according to roller bed rising or falling speed requirement, 2:1 is selected through calculating speed reducing ratio, described driving gear 11 and driven gear 13 are mounted on anti-dust protecting device with tooth bar 12 mate, described slide rail two ends are provided with the excess of stroke detecting switch of tooth bar 12 linear movement and crashproof block, they provide dual security protection for transmission process.Described driving gear 11 and driven gear 13 are mounted on anti-dust protecting device with tooth bar 12 mate, and described slide rail two ends are provided with the excess of stroke detecting switch of tooth bar 12 linear movement.
Described driven gear 13 is coaxial with balance mechanism 15, described driven gear 13 both sides are uniformly distributed vertically and arrange two cast-steel chocks, and it has the highest support accuracy, thus ensure that the rotating accuracy of swing arm, and there is the least moment of friction, make swing arm revolution flexibly.Balance mechanism 15 is connected by tensioning sleeve with driven shaft, and balance mechanism 15 end is provided with high-accuracy needle bearing, and single bearing radially dynamic load reaches 3.2 tons, it is simple to adjust four escapements during installation at sustained height.Swing arm is made up of assemblies such as heavy duty needle bearings with roller bed contact point, during jacking, due to the rotation of bearing, greatly reduces and the friction of roller bed, reduces noise.This kind of lifting type of drive runs carrying greatly, and lifting distance is big, and precision is high, uses safety, stable, easy for installation.Certain automobile factory's run in early stage that my company accepts has used roller bed of the present invention: dance roller bed and relevant gross weight 1.7 tons；Lifting distance 550mm；Lifting drives frequency conversion motor to use 3KW；Application result shows, lifting time is 2.95 seconds respectively.Meet parameter request.
Later maintenance need not arrange spare part, disposably puts into, durable in use.Described balance mechanism 15 is arranged on outside bearing block, described balance mechanism 15 is connected by tensioning sleeve with the axle of driven gear 13, described balance mechanism 15 end is provided with needle bearing, described lifting guide mechanism 2 includes activity-oriented wheel, fixing guide rail 31 and guide rails assembling seat 32, described guide wheel 30 mounting seat is provided with pad and is adjusted, described pad ensures the rolling gap of guide wheel 30 and guide rail 31, described activity-oriented wheel all uses printing type elastic washer to lock, and described four groups are fixed guide rail 31 and are vertically mounted on pedestal 16 by alignment pin.
Lifting idler pulley 30 is internal uses accurate needle bearing, and precision is high with bearing capacity, and frictional force is little, flexible operation.Arranging four groups of lifting idler pulleys 30 and be uniformly arranged on roller bed side, each guide wheel 30 mounting seat all has pad to be adjusted, it is ensured that guide wheel 30 and the rolling gap of guide rail 31；Each guide wheel 30 uses the locking of printing type elastic washer, it is ensured that the reliability that guide wheel 30 rotates continuously.Guide rail 31 uses 45# steel through Overheating Treatment, it is ensured that high rigidity and wearability, and four groups of corresponding guide rails 31 are vertically mounted on pedestal 16；Guide rail 31 ensures certain depth of parallelism and perpendicularity when installing, thus ensures that guide wheel 30 lifts smoothly.
As shown in Figure 3, described horizontal feed roller bed 3 includes drive roller, live-roller mounting bracket, feed drive device, described feed drive device includes carrying frequency conversion motor 20, active synchronization belt wheel 21, driven synchronous pulley 22, Timing Belt 23, described conveying frequency conversion motor 20 is arranged on horizontal feed roller bed 3 bottom, described drive roller includes power transmission shaft, drive pulley, transmission film winded roller, bearing, connecting plate, described drive pulley and transmission film winded roller pass through bonded with power transmission shaft, it is ensured that the stability of Live roller.The encapsulated hardness of film winded roller reaches 90-93, carries 1 ton.Roller bedrest 25 is mainly made up of 6mm plate bending part, on the premise of ensureing rigidity, is effectively reduced the weight of roller bed.Conveying frequency conversion motor 20 uses 1KW；Fed distance 6 meters；Time of delivery 7.8 seconds；Meet parameter request.
Described power transmission shaft two ends arrange an even bearing, and described bearing is fixed in live-roller mounting bracket together with connecting plate, and described drive roller mounting bracket is formed by light sheet bending.Can effectively reduce roller bed weight, meet the requirement of energy-saving and emission-reduction.
As shown in Figure 4, lifting guide mechanism 2 includes roller bed length and width；Two direction guide wheels 30, guide rail 31, guide rails assembling seat 32, guide wheel mounting seat 33.Lifting guide mechanism 2 is evenly distributed on four positions around roller bed.In this mechanism, guide wheel 30 adjusts the fit clearance with guide rail 31 as moving component, moving component by pad.Guide rail 31 uses 45# steel through Overheating Treatment, has high rigidity and wearability, and processes, by turning blue, the effect reaching antirust.Guide rail 31 is fixedly mounted on pedestal 16 by connecting pin as fixation kit, detects 4 guide rail 31 depth of parallelisms by special equipment during installation.Roller bed is connected with guide wheel assembly, moves up and down along precise guide rail 31, significantly ensures roller bed lifting process precision.
Described rack and pinion drive mechanism is with precision height, simple in construction, stable drive, safe and reliable as target design.Described lifting guide mechanism 2 guide wheel 30 uses accurate needle bearing, and precision is high with bearing capacity, and frictional force is little, flexible operation.Emphasis of the present invention considers the two aspect, can be widely applied to various body in white welding procedure.
Claims (1)
- null1. an automatic lifting roller bed，Including lift drive mechanism、Lifting guide mechanism、Horizontal feed roller bed，It is characterized in that described lift drive mechanism includes pedestal、Lifting drives frequency conversion motor and reductor、Rack and pinion drive mechanism、Balance mechanism，Described frequency conversion motor afterbody is provided with absolute value rotary encoder，Described rack and pinion drive mechanism includes driving gear、Tooth bar、Driven gear and swing arm，Described frequency conversion motor and reductor are arranged on pedestal side，Described frequency conversion motor and the output shaft of reductor are connected by key mode with driving gear，The driving gear that rotarily drives of described frequency conversion motor and reductor rotates，Described driving gear rotarily drives tooth bar horizontal linear displacement，Three slide blocks are installed bottom described tooth bar，It is horizontally installed with slide rail on described pedestal，Described slide block and the precision-fit of slide rail，Described two, two of rack motion band action roller bed driven gear synchronous axial system，Driven gear and swing arm are simultaneously attached on the axle of same driven gear，The eccentric of described swing arm is made up of needle bearing etc.，Rotated in 180 degree by swing arm，Band action roller bed Z-direction lifts，Described horizontal feed roller bed both sides are evenly distributed with four lifting guide mechanisms，Guide wheel mounting means is that it is radially orientated guide rail X or Y-direction，Roll along polish guide rail Z-direction,Described X-direction refers to the length direction of roller bed，Described Y-direction refers to the width of roller bed，Described Z-direction refers to the short transverse of roller bed，Be provided with on described pedestal roller bed raising and lowering put in place detection switch，Described driving gear is near being arranged on the reductor shaft shoulder，Described tooth bar is divided into syllogic and installs: one section is engaged with driving gear，Additionally two sections of two ends tooth bar engages with driven gear，Described driving gear and driven tooth wheel and rack mate are mounted on anti-dust protecting device，Described slide rail two ends are provided with the excess of stroke detecting switch of rack motion，Described driven gear is coaxial with balance mechanism，Described driven gear both sides are respectively provided with two cast-steel chocks，Described balance mechanism is arranged on outside bearing block，Described balance mechanism is connected by tensioning sleeve with the axle of driven gear，Described balance mechanism end is provided with needle bearing，Described lifting guide mechanism includes that activity-oriented is taken turns、Fixing guide rail and guide rails assembling seat，Described guide wheel mounting seat is provided with pad and is adjusted，Described pad ensures the rolling gap of guide wheel and guide rail，Described activity-oriented wheel all uses printing type elastic washer to lock，Fixing guide rail described in four groups is vertically mounted on pedestal by alignment pin，Described horizontal feed roller bed includes drive roller、Live-roller mounting bracket、Feed drive device，Described feed drive device includes carrying frequency conversion motor、Active synchronization belt wheel、Driven synchronous pulley、Timing Belt，Described conveying frequency conversion motor is arranged on horizontal feed roller bed bottom，Described drive roller includes power transmission shaft、Drive pulley、Transmission film winded roller、Bearing、Connecting plate，Described drive pulley and transmission film winded roller pass through bonded with power transmission shaft，Described power transmission shaft two ends arrange an even bearing，Described bearing is fixed in live-roller mounting bracket together with connecting plate，Described drive roller mounting bracket is formed by light sheet bending.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375410.4A CN104097894B (en) | 2014-08-01 | 2014-08-01 | A kind of automatic lifting roller bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410375410.4A CN104097894B (en) | 2014-08-01 | 2014-08-01 | A kind of automatic lifting roller bed |
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| CN104097894A CN104097894A (en) | 2014-10-15 |
| CN104097894B true CN104097894B (en) | 2016-09-07 |
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| CN114455506A (en) * | 2022-01-29 | 2022-05-10 | 北京北方华创微电子装备有限公司 | Lifting mechanism and semiconductor process equipment |
| CN115043160A (en) * | 2022-06-21 | 2022-09-13 | 广州明珞装备股份有限公司 | Large-size frame type part conveying system |
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