CN207682145U - A kind of synchronous rotary control mechanism in multistation board - Google Patents

Abstract

A kind of synchronous rotary control mechanism in multistation board, including the first synchronization drive component and for controlling the rotating arm on each mechanical arm pedestal on it around the second synchronization drive component of horizontal axis progress synchronous cross rotation, the first synchronization drive component includes a first servo motor, rotates connecting shaft and at least two drive connections with the one first of first servo motor output axis connection in the first retarder on the first rotation connecting shaft.The workpiece that the utility model itself carries out rotation and rotating arm drive by the first synchronization drive component of setting and the second synchronization drive component come control machinery arm seat body respectively rotates, pass through the rotatable engagement of two kinds of different directions, the free angle of control can be rotated by greatly improving workpiece, it can not only ensure that workpiece completes 360 degree without dead angle polishing, improve polishing quality, and it can be applicable in the polishing of irregular workpiece, ensure its quality of finish.

Description

A kind of synchronous rotary control mechanism in multistation board

Technical field

The utility model is related to a kind of synchronous rotary control mechanisms of more mechanical arms, refer in particular to a kind of multistation board In synchronous rotary control mechanism.

Background technology

Polishing machine mainly uses workpiece surface polishing treatment, and workpiece surface can be made more smooth, finer and smoother, increases aesthetic feeling and touch Comfort level is widely used in Modern Industry Products.For hardware, the polishing mechanical of hot-water heating part product, mainly cotton piece buff is thrown Ray machine, buffing machine make cloth wheel surface be contacted with workpiece surface, to complete to throw in such a way that motor drives cotton piece buff rotation Photoreduction process, easy to operate, easy to use, manual mode of operation can be suitble to variously-shaped hardware or hot-water heating part product to throw Light is widely used in hardware, hot-water heating manufacturing.

Chinese utility model patent（Application number：201020145309.7）Disclose a kind of polishing machine, including babinet and Polishing wheel, transmission device, angle-adjusting mechanism in babinet and electric control gear, transmission device include motor, synchronizing wheel group And transmission shaft, synchronizing wheel group are connected on motor output shaft and transmission shaft, and polishing wheel, polishing wheel are also associated on transmission shaft It is connected on angle-adjusting mechanism with transmission device.

Above-mentioned polishing machine is the angle adjustment that wheel is polished using angle-adjusting mechanism, makes polishing machine in use Corresponding polishing wheel extension or retraction can be carried out according to the shape of workpiece.Although the suitable of polishing wheel can be expanded with upper polishers With range, however there is also have following shortcoming in the actual use process：1, since a polishing machine is merely able to be directed to One workpiece is processed by shot blasting, thus its working efficiency does not adapt to the needs of large-scale production, is unfavorable for further dropping Low production cost；2, between multiple workpiece be easy because different time processing and there are certain deviations on polishing performance, especially It for same parcel, is easy to cause front and back polishing effect and generates significant difference, homogeneity of product is poor, is unfavorable for unified metaplasia Production.

Efficiency is improved if it is separately through superposition polishing wheel, then frequently can lead to load deviation, Huo Zhe because of workpiece Stress when work and lead to position deviation, often cause product machining deviation big in this way, be unfavorable for unitized production.It is raw at present Largely carry out installs fixture using mechanical arm to realize the fixation to workpieces processing in production.However does not have and can precisely control at present It makes multiple mechanical arms and completes the equipment unanimously acted.

Problem above not only exists in polishing machine field, in other lathes or needs to be standardized spray to workpiece There is also same problems in the equipment of painting.

Utility model content

The utility model provides the synchronous rotary control mechanism in a kind of multistation board, and main purpose is to overcome existing There are multiple mechanical arms that can not complete the defect unanimously acted.

In order to solve the above technical problems, the utility model adopts the following technical solution：

A kind of synchronous rotary control mechanism in multistation board, including be used to control multiple mechanical arm pedestals and loaded one In fixed seat first drive component and for controlling each mechanical arm is synchronized around what vertical axis was longitudinally rotated synchronously A rotating arm on pedestal carries out the second of synchronous cross rotation around horizontal axis on it and synchronizes drive component, and described first Synchronous drive component include a first servo motor, with one first rotation connecting shaft of first servo motor output axis connection and At least two are sequentially connected on the first rotation connecting shaft and for the lateral rotation movement of the first rotation connecting shaft to be converted into First retarder of horizontal longitudinal direction rotary motion, the output end of each first retarder, which corresponds to, to be sequentially connected in a mechanical arm pedestal Lower part.

Further, the second synchronization drive component includes one second servo motor, is exported with second servo motor It one second rotation connecting shaft of axis connection and at least two is sequentially connected on the second rotation connecting shaft and for second revolving this The lateral rotation movement for turning connecting shaft is converted into the second retarder of horizontal longitudinal rotary motion, and described second synchronizes drive component also Including the arm rotary shaft being installed on rotating arm and the gear unit being installed in mechanical arm pedestal, each second retarder Output end correspond to and be sequentially connected in the input terminal of a corresponding gear unit, the output end of each gear unit, which corresponds to, to be passed It is dynamic to be connected to a corresponding arm rotary shaft.

Further, the second synchronization drive component is set to the described first underface for synchronizing drive component, each The lower part of mechanical arm pedestal is fixedly connected with a rotary sleeve, the output end of the rotary sleeve and the first retarder immediately below it Fix and be driven by it the longitudinal rotation of progress, each gear unit includes one first lateral shaft, a first longitudinal direction axis and one the Two cylindrical screw gears, the lower end of first lateral shaft sequentially pass through after the rotary sleeve, the first retarder with described The output end of two retarders is fixed, and the upper end of first lateral shaft is provided with one first spiral bevel gear, the first longitudinal direction One end of axis is provided with second spiral bevel gear engaged with first spiral bevel gear, the other end of the first longitudinal direction axis Be provided with one first cylindrical screw gear, the second cylindrical screw geared sleeve is set in the arm rotary shaft, and this The peripheral surface of two cylindrical screw gears is engaged with the first cylindrical screw gear.

Further, the arm interior of rotating shaft be provided with one for supply the axocoel that wears of a traversing inner shaft.

Further, first retarder, the second retarder, gear unit are each provided with three/tetra-/five.

Compared to the prior art, the advantageous effect that the utility model generates is:

1, in the present invention, it is controlled respectively by the first synchronization drive component of setting and the second synchronization drive component The workpiece rotation that mechanical arm pedestal itself carries out rotation and rotating arm drives, passes through the rotatable engagement of two kinds of different directions, pole The earth, which improves workpiece, can rotate the free angle controlled, can not only ensure 360 degree of workpiece completion without dead angle polishing, Polishing quality is improved, and the polishing of irregular workpiece can be applicable in, ensures its quality of finish.

2, in the present invention, workpiece each in this way is in polishing process, and the angle of rotation is synchronous, so that respectively Workpiece is polished in same time and same environment, greatlys improve the polishing consistency of product, is reduced because polishing condition is inclined Difference and caused by product polishing difference, the difference with a collection of workpiece polishing effect can be reduced to a certain extent, convenient for unitized Production, while the control method is simple, it is easy to implement, the accuracy of product polishing can be improved.

3, in the present invention, by the way that the first synchronization drive component and the second synchronization drive component are arranged to cloth up and down Set, and rotary sleeve be socketed the first lateral shaft by way of come ensure two rotary motions can independent control, Bu Huixiang It mutually influences, and not only simplify structure to reduce arrangement space again, advantageously reduces the complexity and working strength of subsequent maintenance.

It 4, in the present invention, can be by carrying out one-pass molding as independent benchmark using boring inside mechanical arm pedestal Processing, other accessories are using the mechanical arm pedestal as basis of reference, thus existing for being processed to avoid the more benchmark of more parts Tolerance stack-up issue is effectively reduced mechanical spare and accessory parts rigging error, is conducive to improve the stability of board operation and uses the longevity Life.

5, in the present invention, by the first lateral shaft, a first longitudinal direction axis and one second cylindrical screw gear it Between transmission mating reaction, workpiece rotation position can be made to be in the first lateral shaft, the first retarder, the second retarder It on same rotary shaft position, can ensure workpiece in this way in rotary course, be always at center location and rotate, to significantly Ground is reduced because there is unfavorable factor during being eccentrically rotated, and then can effectively improve the quality of workpiece polishing.

6, in the present invention, the above synchronous rotary control mechanism not only can be adapted for mechanical arm in all kinds of lathes Synchronous rotary controls, and can be adapted for all kinds of equipment sprayed to workpiece for needing to synchronize rotation control, more It is that can apply on any board for needing to carry out unification mechanical processing to workpiece, thus popularization and application of the utility model The promotion of Workpiece standard processing technology, economic benefit and social benefit must can be promoted far-reaching great.

Description of the drawings

Fig. 1 is the structural schematic diagram of multistation letter out machine in embodiment.

Fig. 2 is the structural schematic diagram of rubbing head in embodiment.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is diagrammatic cross-sections of the Fig. 3 on the directions A-A.

Fig. 5 is that workpiece loads in embodiment and synchronous rotary controls the structural schematic diagram of workbench.

Fig. 6 is the diagrammatic cross-section of Fig. 5.

Fig. 7 is the cooperation schematic diagram of the second retarder and piece-holder mechanical arm in embodiment.

Fig. 8 is the diagrammatic cross-section of Fig. 7.

Fig. 9 is the scheme of installation that third synchronizes drive component in embodiment.

Figure 10 is the front view of Fig. 9.

Figure 11 is the structural schematic diagram of elevating mechanism in embodiment.

Specific implementation mode

Illustrate specific embodiment of the present utility model with reference to the accompanying drawings.

- Figure 11 referring to Fig.1.One kind carrying efficient multistation letter out machine, including rack 1, one is installed in the rack 1 Polishing mechanism 2, the workpiece for being arranged in 2 lower section of polishing mechanism load and synchronous rotary controls workbench 3 and for controlling It states workpiece loading and synchronous rotary control workbench 3 carries out walking mechanism 4 that is front and back or moving left and right, the polishing mechanism 2 It is installed in arranged for interval the rubbing head 21 in the polishing fixed beam 20, the workpiece including polishing fixed beam 20 and four It loads and synchronous rotary control workbench 3 includes loading fixed seat 30, four to be rotatably installed on the loading fixed seat 30 top The piece-holder mechanical arm 31 in face and each piece-holder mechanical arm 31 rotates synchronously and the synchronous of synchronous hunting is driven for controlling Dynamic device 32.

- Figure 11 referring to Fig.1.Each piece-holder mechanical arm 31 includes being correspondingly arranged in a corresponding rubbing head The mechanical arm pedestal 310 of 21 underfaces can be installed on the mechanical arm pedestal 310 with carrying out transverse rotation around horizontal axis Rotating arm 311 and be set on the rotating arm 311 and load fixed fixture unit for controlling workpiece, it is described synchronous to drive Dynamic device 32 includes carrying out longitudinal synchronize around vertical axis on loading fixed seat 30 for controlling each mechanical arm pedestal 310 The first of rotation synchronizes drive component 33 and for controlling each rotating arm 311 on its mechanical arm pedestal 310 around trunnion axis Direction carries out the second of synchronous cross rotation and synchronizes drive component 34, and described first, which synchronizes drive component 33, includes one first servo Motor 330 is sequentially connected with one first rotation connecting shaft 331 of the first servo motor 330 output axis connection and four in this On first rotation connecting shaft 331 and for the lateral rotation movement of the first rotation connecting shaft 331 to be converted into horizontal longitudinal rotation fortune The first dynamic retarder 332, the output end of each first retarder 332, which corresponds to, to be sequentially connected under a mechanical arm pedestal 310 Portion, described second, which synchronizes drive component 34, includes one second servo motor 340, exports axis connection with second servo motor 340 One second rotation connecting shaft 341 and four be sequentially connected in this second rotation connecting shaft 341 on and for by this second rotation connect The lateral rotation movement of axis 341 is converted into the second retarder 342 of horizontal longitudinal rotary motion, and each rotating arm 311 includes arm Portion's rotary shaft 318 and the gear unit 314 being installed in the mechanical arm pedestal 310, the output of each second retarder 342 End is corresponding to be sequentially connected in the input terminal of a corresponding gear unit 314, and the output end of each gear unit 314, which corresponds to, to be passed It is dynamic to be connected to a corresponding arm rotary shaft 318.

- Figure 11 referring to Fig.1.It is described second synchronization drive component 34 be set to it is described first synchronize drive component 33 just under Side, the lower part of each mechanical arm pedestal 310 is fixedly connected with a rotary sleeve 315, the rotary sleeve 315 and the immediately below it The output end of one speed reducer 332 is fixed and is driven by it the longitudinal rotation of progress, and each gear unit 314 includes one first lateral shaft 316, a first longitudinal direction axis 317 and one second cylindrical screw gear 3181, the lower end of first lateral shaft 316 sequentially pass through It is fixed with the output end of second retarder 342 after the rotary sleeve 315, the first retarder 332, first lateral shaft 316 upper end is provided with one first spiral bevel gear 3160, and one end of the first longitudinal direction axis 317 is provided with one and first spiral shell The second spiral bevel gear 3170 that bevel gear 3160 engages is revolved, the other end of the first longitudinal direction axis 317 is provided with one first circle Column helical gear 3171, the second cylindrical screw gear 3181 are sheathed in the arm rotary shaft 318, and second circle The peripheral surface of column helical gear 3181 is engaged with the first cylindrical screw gear 3171, and the fixture unit includes a control gas Cylinder 312 and be fixedly installed in the control cylinder piston rod end a traversing inner shaft 313, in the arm rotary shaft 318 Portion be provided with one for supply the axocoel that wears of the traversing inner shaft 313, the control cylinder 312 is located at the arm rotary shaft 318 Side, and the traversing inner shaft 313 thereon pass through the arm rotary shaft 318 after, with 318 other side of arm rotary shaft A work piece holder be detachably connected.

- Figure 11 referring to Fig.1.The mechanical arm pedestal 310 arranges in zigzag, the rotation of workpiece clamped by the work piece holder The shaft heart and the first lateral shaft 316, the first retarder 332, the second retarder 342 are on same rotary shaft position.

- Figure 11 referring to Fig.1.The rubbing head 21 includes the polishing frame body being rotatably installed in polishing fixed beam 20 210, the polishing revolving part 211 that is rotatably installed on the polishing frame body 210 drives the polishing revolving part 211 to carry out high speed The polishing motor component 212 of rotation and polishing swing component 213 for driving the polishing revolving part 211 to swing back and forth.

- Figure 11 referring to Fig.1.The polishing mechanism 2 further includes one synchronizing rotation for controlling each polishing frame body 210 Third synchronizes drive component 23, and it includes a third servo motor 230 and third servo electricity that the third, which synchronizes drive component 23, Third rotation connecting shaft 231 that 230 output shaft of machine is sequentially connected and four are sequentially connected in the on third rotation connecting shaft 231 Three retarders 232, each output end for polishing frame body 210 and being rotatably installed on corresponding third retarder 232.

- Figure 11 referring to Fig.1.The polishing revolving part 211 includes a polishing assembly 25 and is installed on the polishing assembly 25 On polishing wheel 26, the polishing assembly 25 includes assembly framework 250, the polishing that is rotatably installed on assembly framework 250 Rotary shaft 214, at least two are used to support the polishing bearing 215 of the polishing rotary shaft 214 and are sheathed on the polishing rotary shaft Include one solid on 214 and for driving the second synchronous pulley 216 that it is rotated, the polishing motor component 212 It is driven and is driven with second synchronous pulley 216 by the motor 217 due to the motor 217 and one on polishing frame body 210 and connected The first synchronous pulley 218 connect, the polishing reciprocating part 213 include a straight line being installed in the polishing frame body 210 Guide rail 2130 and a reciprocating cylinder 2132, the polishing assembly 25 are installed on the sliding seat of the linear guide 2130 On, the piston rod end of the reciprocating cylinder is fixed with the assembly framework 250 and for driving the polishing assembly 25 Linear reciprocating motion is carried out along the linear guide 2130, one end of the polishing rotary shaft 214 passes through a polishing bearing 215 are installed on the side of the second synchronous pulley 216, and the other end of the polishing rotary shaft 214 passes through another polishing bearing 215 are installed on the other side of second synchronous pulley 216, and polish described in the other end end stretching of rotary shaft 214 Polishing wheel 26 described in fit on after polishing frame body 210.In the present embodiment, polishing wheel can be cotton piece buff, nylon wheel, grinding wheel or Other wheel shape materials.

- Figure 11 referring to Fig.1.The rack 1 includes two longerons 10 and the crossbeam 11 for being connected to two longerons, 10 top, institute The guide rail 101 that 10 inside of longeron is each provided with a pair of of lateral arrangement is stated, the both ends of the polishing fixed beam 20 are set up in respectively respectively On the guide rail 101 of the inside of longeron 10, the crossbeam 11 is provided with elevating mechanism 12, the elevating mechanism 12 include a lateral arrangement in The lead screw 120 of 11 medium position of crossbeam, the driving nut 125 being combined on the lead screw 120, be arranged on the driving nut 125 The 4th synchronous pulley 121, the bearing part 122, one that is installed on crossbeam 11 and is used to support the lead screw 120 be installed on crossbeam The lifting third synchronous pulley 124 that servo motor 123, one on 11 is connect with the output end of the servo motor 123, the lifting Third synchronous pulley 124 is sequentially connected with the 4th synchronous pulley 121.

- Figure 11 referring to Fig.1.Above-mentioned multistation letter out machine further include the walking mechanism 4 include front and back walking component 40 with And the left and right walking component 41 moved left and right for controlling the front and back walking component, the workpiece loads and synchronous rotary control Workbench 3 processed is installed on the front and back walking component 40.

- Figure 11 referring to Fig.1.The polishing mechanism 2 is arranged in total there are four rubbing head 21, and the workpiece loads and synchronous rotation Turn control workbench 3 to be arranged in total there are four piece-holder mechanical arm 31, each piece-holder mechanical arm 31 is located at correspondingly The underface of 21 operating position of each rubbing head.

Compared to the prior art, the advantageous effect that the utility model generates is:

1, the utility model is simple in structure, highly practical, by the way that four rubbing heads, 21 mating four piece-holder machines are arranged Tool arm 31 is polished workpiece, in this way can not only improve the quantity of processing workpiece in the board unit interval, and each work Part is in polishing process, and the angle of rotation is synchronous, and the dynamics of polishing is also identical, so that each workpiece is in same a period of time Between and same environment be polished, greatly improve the polishing consistency of product, reduce production caused by due to polishing condition deviation Product polish difference, can reduce the difference with a collection of workpiece polishing effect to a certain extent, are convenient for unitized production, while the control Method processed is simple, easy to implement, and the accuracy of product polishing can be improved.

2, in the present invention, 34 come the difference of drive component synchronous with second of drive component 33 is synchronized by setting first The workpiece rotation that control machinery arm seat body 310 itself carries out rotation and rotating arm 311 drives, passes through the rotation of two kinds of different directions Turn cooperation, the free angle of control can be rotated by greatly improving workpiece, can not only ensure that workpiece completes 360 degree without dead angle Polishing improves polishing quality, and can be applicable in the polishing of irregular workpiece, ensures its quality of finish.

3, in the present invention, on by the way that the first synchronous with second drive component of synchronization drive component 33 34 to be arranged to Lower arrangement, and ensure that two rotary motions can be controlled independently in such a way that rotary sleeve 315 is socketed the first lateral shaft 316 System, will not influence each other, and not only simplify structure to reduce arrangement space again, advantageously reduce the complexity of subsequent maintenance with Working strength.

It 4, in the present invention, can be primary by being carried out using the 310 inside boring of mechanical arm pedestal as independent benchmark Processing and forming, other accessories can be processed using the mechanical arm pedestal 310 as basis of reference to avoid the more benchmark of more parts Existing tolerance stack-up issue is effectively reduced mechanical spare and accessory parts rigging error, be conducive to improve board operation stability and Service life.

5, in the present invention, pass through the first lateral shaft 316, a first longitudinal direction axis 317 and one second cylindrical screw Transmission mating reaction between gear can make workpiece rotation position and the first lateral shaft 316, the first retarder 332, second Retarder 342 is on same rotary shaft position, can ensure that workpiece in rotary course, is always at center location in this way Place's rotation to greatly reduce because there is unfavorable factor during being eccentrically rotated, and then can effectively improve workpiece polishing Quality.

6, in the present invention, shake-up card-bit part implementation screens is dynamic after the control cylinder of fixture unit pushes traversing inner shaft Make, the effect of to complete clamping workpiece, not only changes that clamping structure is simple, operation is rapid, but also arm rotary shaft is relatively traversing Inner shaft independently rotates, thus it will not impact cylinder in rotary course, to by cleverly mechanical engagement, ensure The independent operating of each component.

7, in the present invention, polishing wheel 26 can also swing while high speed rotation, thus can be It is effective to improve polishing dynamics and quality under the premise of same rotational speed, shorten polishing time, and then both improve polishing efficiency, Product quality can be improved again.

8, in the present invention, polishing assembly 25 is pulled in the linear guide by the way that reciprocating cylinder is arranged, and Rotary impact power can't be generated to reciprocating cylinder in high-speed rotation process by polishing rotary shaft 214, thus by ingenious Mechanical engagement, ensure polishing wheel 26 itself spinning movement and the action that swings independent operating.

9, in the present invention, drive component 23 is synchronized by the way that third is arranged, it can be with but also respectively polishing 210 energy of frame body The certain angle of enough synchronous rotaries so that the letter out machine of the utility model can be into X-direction, Y direction and Z-direction Row rotates synchronously, thus greatly widens the angles and positions of workpiece polishing, it is ensured that the comprehensive space curved surface operation of workpiece.

10, in the present invention, polishing mechanism 2 can carry out shifting up and down, and workpiece loads and synchronous rotary control It before and after workbench 3 can then be controlled by walking mechanism 4 or moves left and right, thus the utility model can be increased can to process The specification type of workpiece makes it substantially meet the polishing of arbitrary shape and a wide range of interior metal casting.

11, in the present embodiment, the above synchronous rotary control mechanism not only can be adapted for mechanical arm in all kinds of lathes Synchronous rotary controls, and can be adapted for all kinds of equipment sprayed to workpiece for needing to synchronize rotation control, more It is that can apply on any board for needing to carry out unification mechanical processing to workpiece, thus popularization and application of the utility model The promotion of Workpiece standard processing technology, economic benefit and social benefit must can be promoted far-reaching great.

In addition, in the present embodiment rubbing head and piece-holder mechanical arm be not limited to only be arranged 4, can also be 3,5 It is a or 6.

The above is only the specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, All non-essential modifications to the present invention made by this concept should all belong to the row for invading scope of protection of the utility model For.

Claims (3)

1. the synchronous rotary control mechanism in a kind of multistation board, it is characterised in that：Including being used to control multiple mechanical arm seats Body loads the first synchronization drive component longitudinally rotated synchronously around vertical axis in fixed seat and for controlling one A rotating arm on each mechanical arm pedestal carries out the second synchronization driving group of synchronous cross rotation around horizontal axis on it Part, the first synchronization drive component include a first servo motor, one first with first servo motor output axis connection It rotates connecting shaft and at least two is sequentially connected on the first rotation connecting shaft and for by lateral the revolving of the first rotation connecting shaft Transhipment turn changes the first retarder of horizontal longitudinal rotary motion into, the output end of each first retarder correspond to be sequentially connected in The lower part of one mechanical arm pedestal, described second to synchronize drive component include one second servo motor, defeated with second servo motor Go out axis connection one second rotation connecting shaft and at least two be sequentially connected in this second rotation connecting shaft on and for by this second The lateral rotation movement of rotation connecting shaft is converted into the second retarder of horizontal longitudinal rotary motion, and described second synchronizes drive component Further include the arm rotary shaft being installed on rotating arm and the gear unit being installed in mechanical arm pedestal, each second slows down The output end of device, which corresponds to, to be sequentially connected in the input terminal of a corresponding gear unit, and the output end of each gear unit corresponds to It is sequentially connected in a corresponding arm rotary shaft, the second synchronization drive component is set to described first and synchronizes driving group The lower part of the underface of part, each mechanical arm pedestal is fixedly connected with a rotary sleeve, the rotary sleeve and the immediately below it The longitudinal rotation of progress is fixed and be driven by it to the output end of one speed reducer, and each gear unit includes one first lateral shaft, one the One longitudinal axis and one second cylindrical screw gear, the lower end of first lateral shaft sequentially pass through the rotary sleeve, first Output end after retarder with second retarder is fixed, and the upper end of first lateral shaft is provided with one first spiral bevel gear Wheel, one end of the first longitudinal direction axis are provided with second spiral bevel gear engaged with first spiral bevel gear, and described the The other end of one longitudinal axis is provided with one first cylindrical screw gear, and the second cylindrical screw geared sleeve is revolved set on the arm In shaft, and the peripheral surface of the second cylindrical screw gear is engaged with the first cylindrical screw gear.

2. the synchronous rotary control mechanism in a kind of multistation board as described in claim 1, it is characterised in that：The arm rotation Shaft be internally provided with one for supply the axocoel that wears of a traversing inner shaft.

3. the synchronous rotary control mechanism in a kind of multistation board as claimed in claim 2, it is characterised in that：Described first subtracts Fast device, the second retarder, gear unit are each provided with three/tetra-/five.