CN203579658U - Synchronous belt speed reducing plane joint robot - Google Patents

Synchronous belt speed reducing plane joint robot Download PDF

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Publication number
CN203579658U
CN203579658U CN201320774369.9U CN201320774369U CN203579658U CN 203579658 U CN203579658 U CN 203579658U CN 201320774369 U CN201320774369 U CN 201320774369U CN 203579658 U CN203579658 U CN 203579658U
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CN
China
Prior art keywords
axis
axle
mechanical arm
deceleration
driven
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CN201320774369.9U
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Chinese (zh)
Inventor
王念峰
郑超超
刘景辉
李志斌
张宪民
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华南理工大学
深圳市新昂慧科技有限公司
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Application filed by 华南理工大学, 深圳市新昂慧科技有限公司 filed Critical 华南理工大学
Priority to CN201320774369.9U priority Critical patent/CN203579658U/en
Application granted granted Critical
Publication of CN203579658U publication Critical patent/CN203579658U/en

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Abstract

The utility model discloses a synchronous belt speed reducing plane joint robot, which comprises a base, a Z-axis motor frame, a Z-axis servo motor, a screw rod, a screw rod frame, an ascending and descending seat, a first mechanical arm, a second mechanical arm, an X-axis harmonic speed reducer, a Y-axis cover, a joint shaft, an R-axis cover and an operating main shaft, wherein the screw rod is arranged between an angle contact ball bearing arranged on the base and an angle contact ball bearing arranged on the screw rod frame, i.e., the Z axis, and the Z axis is used as a rotating center for driving the ascending and descending seat and a component arranged on the ascending and descending seat to move in the axial direction of the Z axis under the effect of the Z-axis servo motor and Z-axis driving and driven wheels, the X-axis harmonic speed reducer is arranged at the back end part of the ascending and descending seat, and the center part of the X-axis harmonic speed reducer is used as a rotating center fro driving components arranged on the first mechanical arm and the second mechanical arm to rotate along the X axis. Compared with an ordinary plane joint robot, the synchronous belt speed reducing plane joint robot has the advantages that higher precision and greater moving space can be ensured, and in addition, the manufacturing cost of the plane joint robot can be greatly reduced.

Description

One Timing Belt deceleration plane articulation robot
Technical field
The utility model belongs to Industrial Robot Technology field, particularly relates to a kind of Timing Belt deceleration plane articulation robot.
Background technology
The relatively simple selective compliance assembly robot arm's system of Development of Universal type and structure also has certain reference for development and the development of robot.From Japan initial utility model robot, exceeded 40 years till now, but selective compliance assembly robot arm is still considered to element indispensable in automatic processing.Selective compliance assembly robot arm is best robot in point-to-point motion, be usually used in distributing, carry, load, pack, lay and the operation such as assembling among.
Selective compliance assembly robot arm's movement locus is cylindrical, contrast six-DOF robot, and it can more efficiently and accurately complete back and forth movement.Its motion mimics people's arm, increases the motion of wrist joint and vertical direction with the connection of shoulder joint and elbow joint, be more suitable for need to doing for those working environment of back and forth movement.
As selective compliance assembly robot arm, in general, desired plane revolute robot's movable range becomes large certainly, also expects to reduce the inertia of this selective compliance assembly robot arm's mechanical arm simultaneously, reduces the manufacturing cost of this robot.
Utility model content
For the technical problem of described existence, the purpose of this utility model is to provide a kind of Timing Belt deceleration plane articulation robot, can make selective compliance assembly robot arm's movable range become large, also reduce the inertia of this selective compliance assembly robot arm's mechanical arm, also can reduce this selective compliance assembly robot arm's manufacturing cost simultaneously simultaneously.
For solving described technical problem, the utility model by the following technical solutions:
One Timing Belt deceleration plane articulation robot, comprising: the base that plays supporting and cushioning effect; Under the position-limiting action of screw mandrel and 2 optical axises along the elevating bracket moving up and down in Z-direction; The first mechanical arm, what it can rotate take the X-axis parallel with Z axis as center of rotation is arranged on described elevating bracket; Y-axis lid, is installed on the first mechanical arm, supporting Y-axis deceleration device one axle and Y-axis deceleration device two axles, and there is the through hole running through for Y-axis servo motor shaft, Y-axis deceleration device one axle and Y-axis deceleration device two axles; The second mechanical arm, what it can rotate take the Y-axis parallel with X-axis as center of rotation is arranged on described the first mechanical arm; Operation main shaft, what it can rotate take the R axle parallel with Y-axis as center of rotation is arranged on above-mentioned the second mechanical arm; R shaft-cup, is installed on the second mechanical arm, supporting operation main shaft, and there is the through hole running through for described operation main shaft;
The upper and lower side of described two optical axises is all by the shaft shoulder and base location, on the upper and lower side of optical axis and base, endoporus with matching adopts matched in clearance, slide bushing on optical axis is closely fixedly connected with by the first screw with elevating bracket, the bottom of described screw mandrel coordinates with the first angular contact ball bearing being arranged in screw mandrel frame, elevating bracket is closely fixedly connected with the screw mandrel nut on screw mandrel by the first screw, slide bushing is in order to reduce the coefficient of friction of motion process, stationarity when optical axis moves up and down in order to increase Z axis;
Together with X-axis servomotor is connected by screw with the first mechanical arm, the first mechanical arm, X-axis harmonic speed reducer and elevating bracket link together by the second screw and the 3rd screw, thereby drive the parts on the first mechanical arm and the first mechanical arm to rotate along X-axis;
Y-axis servomotor is closely fixedly connected with Y-axis lid by screw, described Y-axis lid is arranged on the first mechanical arm by screw, Y-axis servomotor is driven and is connected by Timing Belt with Y-axis one-level driving pulley, Y-axis one-level driving pulley is driven and is connected by Timing Belt with the Y-axis one-level driven pulley being arranged on Y-axis deceleration device two axles, on being arranged on Y-axis secondary driving pulley on Y-axis deceleration device two axles and being arranged on Y-axis deceleration device one axle, Y-axis secondary driven pulley is driven and is connected by Timing Belt, the three grades of driving pulleys of Y-axis that are arranged on Y-axis deceleration device one axle are driven and are connected by Timing Belt with three grades of driven pulleys that are arranged on joint shaft, thereby drive the parts on the second mechanical arm and the second mechanical arm to rotate along Y-axis, described Y-axis deceleration device one axle and Y-axis deceleration device two axles are set in parallel between the first mechanical arm and Y-axis lid by deep groove ball bearing,
Thereby, described Y-axis servomotor is delivered to motion and moment of torsion on Y-axis one-level driving pulley, Y-axis one-level driving pulley is delivered to Y-axis one-level driven pulley and Y-axis secondary driving pulley by motion and moment of torsion, Y-axis secondary driving pulley is delivered to motion and moment of torsion on Y-axis secondary driven pulley and three grades of driving pulleys of Y-axis, three grades of driving pulleys of Y-axis are delivered to motion and moment of torsion on three grades of driven pulleys of Y-axis and the second mechanical arm, thereby drive the parts on the second mechanical arm and the second mechanical arm to rotate along Y-axis;
Joint shaft coordinates by the shaft shoulder with the second angular contact ball bearing being contained in the first mechanical arm, described joint shaft and the second angular contact ball bearing adopt interference fit, installing hole on described the first mechanical arm and the second angular contact ball bearing adopt interference fits, the bottom of described the first mechanical arm installing hole has a bearing baffle to be closely fixedly connected with the first mechanical arm by screw, the top of described the first mechanical arm installing hole has a bearing outside to be closely fixedly connected with the first mechanical arm by screw, three grades of driven pulleys of described the second mechanical arm and Y-axis are connected with joint shaft by flat key, for transmitting torque, the top of described joint shaft is provided with round nut, for the axial location of the second mechanical arm,
Described R shaft-cup is closely fixedly connected with by screw with the second mechanical arm, described R axle servomotor is closely fixedly connected with by screw with the second mechanical arm, described operation main shaft coordinates with the deep groove ball bearing being arranged in R shaft-cup, R axle servomotor drives and is connected with R axle one-level driving pulley, R axle one-level driving pulley is driven and is connected by Timing Belt with the R axle one-level driven pulley being arranged on R axle deceleration device two axles, the R axle secondary driving pulley that is arranged on R axle deceleration device two axles is driven and is connected by Timing Belt with the R axle secondary driven pulley being arranged on R axle deceleration device one axle, the three grades of driving pulleys of R axle that are arranged on R axle deceleration device one axle are connected with the three grades of driven pulleys drivings of R axle that are connected on operation main shaft, thereby drive the parts on operation main shaft and operation main shaft to rotate along R axle, described R axle deceleration device one axle, R axle deceleration device two axles and operation main shaft are set in parallel between the second mechanical arm and R shaft-cup by deep groove ball bearing.
Thereby R axle servomotor is delivered to motion and moment of torsion on R axle one-level driving pulley, R axle one-level driving pulley is delivered to motion and moment of torsion on R axle one-level driven pulley and R axle secondary driving pulley, R axle secondary driving pulley is delivered to motion and moment of torsion on R axle secondary driven pulley and three grades of driving pulleys of R axle, three grades of driving pulleys of R axle are delivered to motion and moment of torsion on three grades of driven pulleys of R axle and operation main shaft, thereby drive the parts on operation main shaft and operation main shaft to rotate along R axle.
Further, three grades of driving pulleys of described Y-axis, Y-axis secondary driven pulley, Y-axis secondary driving pulley, three grades of driven pulleys of Y-axis, R axle one-level driving pulley, R axle one-level driven pulley, R axle secondary driven pulley, R axle secondary driving pulley, three grades of driven pulleys of R axle, three grades of driving pulleys of R axle, Y-axis one-level driven pulley, Y-axis one-level driving pulley all adopt arc tooth synchronous belt wheel.
Further, the speed reducing ratio of described R axle one-level driving pulley and R axle one-level driven pulley is 4:1, the speed reducing ratio of described R axle secondary driving pulley and R axle secondary driven pulley is 3:1, and the speed reducing ratio of three grades of driving pulleys of described R axle and three grades of driven pulleys of R axle is 4:1.
Z axis servomotor is closely fixedly connected with motor rack by hexagon socket cap head screw, Z axis servo motor shaft is closely fixedly connected with by base rice screw with Z axis synchronous pulley driving wheel, Z axis synchronous pulley driven pulley coordinates installation by base rice screw and the screw mandrel shaft shoulder with screw mandrel, screw mandrel coordinates with the angular contact ball bearing that is arranged on the angular contact ball bearing in screw mandrel frame and be arranged in base, elevating bracket is closely fixedly connected with by screw with the screw mandrel nut on screw mandrel, therefore Z-axis transmission process: Z axis synchronous pulley driven pulley passes to screw mandrel by rotating speed and moment of torsion, screw mandrel by screw mandrel nut drive elevating bracket with together with parts on elevating bracket along moving up and down in Z-direction.
X-axis servomotor is closely fixedly connected with by hexagon socket cap head screw with the first mechanical arm, the first mechanical arm is closely fixedly connected with by hexagon socket cap head screw with harmonic speed reducer, harmonic speed reducer is closely fixedly connected with by hexagon socket cap head screw with elevating bracket, X servo motor shaft drives decelerator motion by sliding cross coupling, the output shaft that is X servomotor drives the input motion of decelerator, thereby drives the parts on the second mechanical arm and the second mechanical arm to rotate together.
The utlity model has following advantage: adopt three grades of synchronous pulleys as its deceleration device, transmission accuracy is higher and fricton-tight in the course of the work, large and the compact conformation of transmission range, in the utility model, the servo motor shaft of Z axis, Y-axis and R axle adopts the form of synchronous belt pulley transmission, be conducive to the arrangement of parts, motor can be placed near joint, reduces the inertia of mechanical arm.
In robot of the present utility model, the Y-axis link of slowing down is designed to the form of three grades of synchronous belt pulley transmissions, the power of first Y-axis servomotor is smaller with respect to the power of X-axis and R axle servomotor, also smaller in order to shape and the quality of each synchronous pulley of three grades of synchronous pulley deceleration devices; Length and the width of its 2 first mechanical arms are larger, can, effectively for three grades of synchronous pulley deceleration devices provide installing space, so not only reduce the rotary inertia on the second mechanical arm, and greatly reduce the cost of manufacturing this robot.
For Y-axis and R shaft portion, adopt three grades of synchronous pulleys to slow down, its deceleration specific energy reaches 48:1, and arc tooth synchronous belt takes turns the also higher precision of tool, can complete higher precision location and the function transmitting.
So replaced the harmonic speed reducer that speed reducing ratio is 50:1 in X-axis transmission with 3 pairs of synchronous pulleys, it is feasible for Y-axis and R axle deceleration link, adopting three grades of Timing Belt wheels to slow down, one, the power of Y-axis servomotor and R axle servomotor is less with respect to the power of Z axis servomotor and X-axis servomotor, less for transmitting size and the weight of synchronous pulley of servomotor rotating speed and moment of torsion, can not cause the increase of mechanical arm rotary inertia; The size of its two, the first mechanical arm and the second mechanical arm is larger, and the installing space that Timing Belt wheels are installed can be provided.Harmonic speed reducer is a kind of decelerator of costliness, so adopt three grades of Timing Belt wheels to slow down, can greatly reduce the manufacturing cost of this robot.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic that represents the related Timing Belt deceleration plane articulation robot of the utility model embodiment.
Fig. 2 is the schematic perspective view that represents the related Timing Belt deceleration plane articulation robot of the utility model embodiment.
Fig. 3 is the Y-axis Timing Belt deceleration device schematic diagram that represents the related Timing Belt deceleration plane articulation robot of the utility model embodiment.
Fig. 4 is the schematic top plan view that represents the utility model Timing Belt deceleration plane articulation robot.
Fig. 5 is that schematic diagram is looked on a left side that represents the utility model Timing Belt deceleration plane articulation robot.
Fig. 6 is the view that represents the movable range state of the utility model Timing Belt deceleration plane articulation robot arm.
In figure: 1.Z axle driving pulley; 2.Z axle servomotor; 3. optical axis; 4.Z spindle motor frame; 5. Z axis driven pulley; 6. base; 7. screw mandrel frame; 8. the first angular contact ball bearing; 9. screw mandrel; 10. screw mandrel nut; 11. slide bushings; 12. first screws; 13. elevating brackets; 14. second screws; 15.X axle harmonic speed reducer; 16. the 3rd screws; 17.X axle servomotor; 18. first mechanical arms; Three grades of driving pulleys of 19.Y axle; 20. Y-axis secondary driven pulleys; 21. deep groove ball bearings; 22. Y-axis secondary driving pulleys; 23. bearing baffles; 24. second angular contact ball bearings; 25. bearing outsides; 26. three grades of Y-axis driven pulleys; 27.R axle one-level driving pulley; 28.R axle deceleration device one axle; 29. R axle one-level driven pulleys; 30. R axle secondary driven pulleys; 31. R axle deceleration device two axles; 32.R axle secondary driving pulley; 34. second mechanical arms; 35.R shaft-cup; Three grades of driven pulleys of 36.R axle; 38. operation main shafts; Three grades of driving pulleys of 41.R axle; 42. round nuts; 43.R axle servomotor; 44. joint shafts; 45.Y axle one-level driven pulley; 46.Y shaft-cup; 47.Y axle deceleration device two axles; 48. Y-axis deceleration device one axles; 49.Y axle one-level driving pulley; 50.Y axle servomotor.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further elaborated
As shown in Figures 1 to 5, a kind of Timing Belt deceleration plane articulation robot, comprising: the base 6 that plays supporting and cushioning effect; Under the position-limiting action of 9 and 2 optical axises 3 of screw mandrel along the elevating bracket 13 moving up and down in Z-direction; The first mechanical arm 18, what it can rotate take the X-axis parallel with Z axis as center of rotation is arranged on described elevating bracket 13; Y-axis lid 46, is installed on the first mechanical arm 18, supporting Y-axis deceleration device one axle 48 and Y-axis deceleration device two axles 47, and there is the through hole running through for Y-axis servo motor shaft, Y-axis deceleration device one axle 48 and Y-axis deceleration device two axles 47; The second mechanical arm 34, what it can rotate take the Y-axis parallel with X-axis as center of rotation is arranged on described the first mechanical arm 18; Operation main shaft 38, what it can rotate take the R axle parallel with Y-axis as center of rotation is arranged on above-mentioned the second mechanical arm 34; R shaft-cup 35, is installed on the second mechanical arm 34, supporting operation main shaft 38, and there is the through hole running through for described operation main shaft 38;
The upper and lower side of described two optical axises 3 is all to locate by the shaft shoulder and base 6, on the upper and lower side of optical axis 3 and base 6, endoporus with matching adopts matched in clearance, slide bushing 11 on optical axis 3 is closely fixedly connected with by the first screw 12 with elevating bracket 13, the bottom of described screw mandrel 9 coordinates with the first angular contact ball bearing 8 being arranged in screw mandrel frame 7, elevating bracket 13 is closely fixedly connected with the screw mandrel nut 10 on screw mandrel 9 by the first screw 12, slide bushing is in order to reduce the coefficient of friction of motion process, stationarity when optical axis moves up and down in order to increase Z axis;
Together with X-axis servomotor 17 is connected by screw with the first mechanical arm 18, the first mechanical arm 18, X-axis harmonic speed reducer 15 and elevating bracket 13 link together by the second screw 14 and the 3rd screw 16, thereby drive the parts on the first mechanical arm and the first mechanical arm 18 to rotate along X-axis;
Y-axis servomotor 50 is closely fixedly connected with Y-axis lid 46 by screw, described Y-axis lid 46 is arranged on the first mechanical arm 18 by screw, Y-axis servomotor 50 is driven and is connected by Timing Belt with Y-axis one-level driving pulley 49, Y-axis one-level driving pulley 49 is driven and is connected by Timing Belt with the Y-axis one-level driven pulley 45 being arranged on Y-axis deceleration device two axles 47, on being arranged on Y-axis secondary driving pulley 22 on Y-axis deceleration device two axles 47 and being arranged on Y-axis deceleration device one axle 48, Y-axis secondary driven pulley 20 is driven and is connected by Timing Belt, the three grades of driving pulleys 19 of Y-axis that are arranged on Y-axis deceleration device one axle 48 are driven and are connected by Timing Belt with three grades of driven pulleys 26 that are arranged on joint shaft 44, thereby drive the parts on the second mechanical arm 34 and the second mechanical arm 34 to rotate along Y-axis, described Y-axis deceleration device one axle 48 and Y-axis deceleration device two axles 47 are set in parallel between the first mechanical arm 18 and Y-axis lid 46 by deep groove ball bearing 21,
Thereby, described Y-axis servomotor 50 is delivered to motion and moment of torsion on Y-axis one-level driving pulley 49, Y-axis one-level driving pulley 49 is delivered to motion and moment of torsion on Y-axis one-level driven pulley 45 and Y-axis secondary driving pulley 22, Y-axis secondary driving pulley 22 is delivered to motion and moment of torsion on Y-axis secondary driven pulley 20 and three grades of driving pulleys 19 of Y-axis, three grades of driving pulleys 19 of Y-axis are delivered to motion and moment of torsion on three grades of driven pulleys 26 of Y-axis and the second mechanical arm 34, thereby drive the parts on the second mechanical arm and the second mechanical arm 34 to rotate along Y-axis;
Joint shaft 44 coordinates by the shaft shoulder with the second angular contact ball bearing 24 being contained in the first mechanical arm 18, described joint shaft 44 and the second angular contact ball bearing 24 adopt interference fit, installing hole and the second angular contact ball bearing 24 on described the first mechanical arm 18 adopt interference fits, the bottom of described the first mechanical arm installing hole has a bearing baffle 23 to be closely fixedly connected with the first mechanical arm 18 by screw, the top of described the first mechanical arm 18 installing holes has a bearing outside 25 to be closely fixedly connected with the first mechanical arm 18 by screw, three grades of driven pulleys 26 of described the second mechanical arm 34 and Y-axis are connected with joint shaft 44 by flat key, for transmitting torque, the top of described joint shaft is provided with round nut 42, for the axial location of the second mechanical arm 34,
Described R shaft-cup 35 is closely fixedly connected with by screw with the second mechanical arm 34, described R axle servomotor 43 is closely fixedly connected with by screw with the second mechanical arm 34, described operation main shaft 38 coordinates with the deep groove ball bearing 21 being arranged in R shaft-cup 35, R axle servomotor 43 drives and is connected with R axle one-level driving pulley 27, R axle one-level driving pulley 27 is driven and is connected by Timing Belt with the R axle one-level driven pulley 29 being arranged on R axle deceleration device two axles 31, the R axle secondary driving pulley 32 that is arranged on R axle deceleration device two axles 31 is driven and is connected by Timing Belt with the R axle secondary driven pulley 30 being arranged on R axle deceleration device one axle 28, the three grades of driving pulleys 41 of R axle that are arranged on R axle deceleration device one axle 28 are connected with three grades of driven pulleys of R axle, 36 drivings that are connected on operation main shaft 38, thereby drive the parts on operation main shaft 38 and operation main shaft 38 to rotate along R axle, described R axle deceleration device one axle 28, R axle deceleration device two axles 31 and operation main shaft 38 are set in parallel between the second mechanical arm 34 and R shaft-cup 35 by deep groove ball bearing 21.
Thereby R axle servomotor 43 is delivered to motion and moment of torsion on R axle one-level driving pulley 27, R axle one-level driving pulley 27 is delivered to motion and moment of torsion on R axle one-level driven pulley 29 and R axle secondary driving pulley 32, R axle secondary driving pulley 32 is delivered to motion and moment of torsion on R axle secondary driven pulley 30 and three grades of driving pulleys 41 of R axle, three grades of driving pulleys 41 of R axle are delivered to motion and moment of torsion on three grades of driven pulleys 36 of R axle and operation main shaft 38, thereby drive the parts on operation main shaft and operation main shaft 38 to rotate along R axle.
Further, three grades of driving pulleys 19 of described Y-axis, Y-axis secondary driven pulley 20, Y-axis secondary driving pulley 22, three grades of driven pulleys 26 of Y-axis, R axle one-level driving pulley 27, R axle one-level driven pulley 29, R axle secondary driven pulley 30, R axle secondary driving pulley 32, three grades of driven pulleys 36 of R axle, three grades of driving pulleys 41 of R axle, Y-axis one-level driven pulley 45, Y-axis one-level driving pulley 49 all adopt arc tooth synchronous belt wheel.
Further, described R axle one-level driving pulley 27 is 4:1 with the speed reducing ratio of R axle one-level driven pulley 29, described R axle secondary driving pulley 32 is 3:1 with the speed reducing ratio of R axle secondary driven pulley 30, and three grades of driving pulleys of described R axle 41 are 4:1 with the speed reducing ratio of three grades of driven pulleys 36 of R axle.
Shown in figure 1, install with the inner ring interference fit that is arranged on the angular contact ball bearing on base 6 on the top of described screw mandrel 9, between endoporus on outer ring and the base of the angular contact ball bearing on top, interference fits is installed, install with the inner ring interference fit that is arranged on the angular contact ball bearing on screw mandrel frame 7 bottom of described screw mandrel, and between the shoulder hole on the outer ring of the angular contact ball bearing of bottom and screw mandrel frame, interference fits is installed.The bottom of screw mandrel 9 is also provided with Z axis Timing Belt driven pulley 5, and in order to pass to screw mandrel rotating speed and moment of torsion, the screw mandrel nut 10 on screw mandrel is closely fixedly connected with by screw with elevating bracket 13, thereby drives the parts on elevating bracket and elevating bracket 13 to move up and down along Z axis.
Deceleration device in the utility model is mainly to adopt three grades of synchronous pulley deceleration devices, Timing Belt is the vitals of three grades of synchronous pulley deceleration devices of composition, and toothed belt transmission is provided with the belt band of equidistant profile of tooth and is had corresponding identical wheel by an interior perimeter surface and formed.It combines with transmission, chain transmission and gear drive advantage separately.During rotation, by the transferring power that is meshed with tooth and the teeth groove of wheel.Transmission has gearratio accurately with toothed belt transmission, without slippage, can obtain constant speed ratio, stable drive, and energy absorbing, noise is little, and gear range is large.
What synchronous pulley adopted is arc tooth synchronous belt wheel, arc tooth synchronous belt wheel is because its profile of tooth has the feature of circular arc, be different from the square shaped teeth of ladder type tooth synchronous pulley and T-shaped synchronous pulley, arc tooth synchronous belt wheel, can meet powerful transmission, its transmission power than ladder type tooth and the large 3-5 of T-shaped tooth doubly.
What the X-axis joint component in robot of the present utility model adopted is harmonic speed reducer 15, mainly by wave producer, flexible gear and three basic building block groups of rigid gear, formed, a kind of by wave producer, to make flexible gear produce controlled elasticity to be out of shape, and with the gear drive of rigid gear transmission campaign and power.The top of harmonic speed reducer is closely fixedly connected with by screw with the first mechanical arm 18, and the bottom of harmonic speed reducer 15 is closely fixedly connected with by screw with elevating bracket 13, drives the parts on the first mechanical arm 18 and the first mechanical arm 18 to rotate along X-axis.
Y-axis servomotor 50 is closely fixedly connected with by screw with Y-axis lid 46, Y-axis lid 46 is closely fixedly connected with by screw with the first mechanical arm 18, a pair of deep groove ball bearing on Y-axis Timing Belt wheel shaft coordinates with Y-axis lid 46 and the first mechanical arm 18 respectively, the inner ring of deep groove ball bearing and Timing Belt wheel shaft interference fit, endoporus interference fits on outer ring and Y-axis lid or the first mechanical arm, the synchronous pulley on Timing Belt wheel shaft and Timing Belt wheel shaft are installed by the shaft shoulder and Ji meter screw fit.So Y-axis transmission process: Y-axis servomotor 50 passes to Y-axis first to synchronous pulley driving wheel 49 by rotating speed and moment of torsion, through each synchronous pulley and Timing Belt, rotating speed and moment of torsion are passed to Y-axis joint shaft 44, drive the parts on the second mechanical arm 34 and the second mechanical arm 34 to rotate.
R axle servomotor 43 is closely fixedly connected with by screw with the second mechanical arm 34, R axle servo motor shaft links together by the R axle one-level driving pulley 27 in base rice screw and three grades of synchronous pulleys, all the other each synchronous pulleys link together by base rice screw and Timing Belt wheel shaft or operation main shaft 38, R through-drive process: R spindle motor axle passes to first pair of Timing Belt driving wheel 27 in three grades of synchronous pulleys by rotating speed and moment of torsion, by belt wheel and belt in three grades of synchronous pulleys, rotating speed and moment of torsion pass to operation main shaft 38 the most at last.The speed reducing ratio of first pair of belt wheel in the utility model is 4:1, and the speed reducing ratio of second pair of belt wheel is 3:1, and the speed reducing ratio of the 3rd pair of belt wheel is 4:1, and the speed reducing ratio of three grades of synchronous pulleys is 48:1.
In the Y-axis joint of Timing Belt deceleration plane articulation of the present utility model robot, support joint axle 44 and the pair of horns contact ball bearing in order to mechanical load coefficient of friction in reducing transmission process are installed in one end endoporus of the first mechanical arm 18, one bearing baffle 23 is installed in the lower end of the lower bearing of joint shaft 44, in order to the axial location of this bearing, bearing baffle 23 is closely fixedly connected with the first mechanical arm by screw, one bearing outside 25 is installed in the upper end of the upper bearing of joint shaft 44, in order to the axial location of this bearing, bearing outside is closely fixedly connected with the first mechanical arm 18 by screw, the 3rd pair of synchronous pulley driven pulley coordinates with joint shaft 44 by flat key and the shaft shoulder, on the axial direction of the 3rd pair of synchronous pulley driven pulley 26 and the second mechanical arm 34, an axle sleeve is installed, in order to the axial location of the 3rd pair of synchronous pulley driven pulley 26, the second mechanical arm 34 coordinates with joint shaft by flat key and the shaft shoulder, a pair of round nut 42 is installed on the axial direction of the second mechanical arm 34, in order to the axial location of the second mechanical arm.
Shown in figure 6; in Timing Belt deceleration plane articulation of the present utility model robot; when the arm of the second mechanical arm 34, to the brachium direction of the first mechanical arm 18, draw close while being a straight line, be the poor of mechanical arm brachium and the second mechanical arm brachium, this selective compliance assembly robot arm's radius of gyration minimum; When the arm of the first mechanical arm 18 and the arm of the second mechanical arm 34 extend while being a straight line, be the first mechanical arm 18 brachiums and the second mechanical arm 34 brachium sums, this selective compliance assembly robot arm's radius of gyration maximum.
Above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.All any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in the protection domain of the utility model claim.

Claims (3)

1. a Timing Belt deceleration plane articulation robot, is characterized in that, comprising: the base (6) that plays supporting and cushioning effect; Under the position-limiting action of screw mandrel (9) and 2 optical axises (3) along the elevating bracket moving up and down in Z-direction (13); The first mechanical arm (18), what it can rotate take the X-axis parallel with Z axis as center of rotation is arranged on described elevating bracket (13); Y-axis lid (46), be installed on the first mechanical arm (18), supporting Y-axis deceleration device one axle (48) and Y-axis deceleration device two axles (47), and there is the through hole running through for Y-axis servo motor shaft, Y-axis deceleration device one axle (48) and Y-axis deceleration device two axles (47); The second mechanical arm (34), what it can rotate take the Y-axis parallel with X-axis as center of rotation is arranged on described the first mechanical arm (18); Operation main shaft (38), what it can rotate take the R axle parallel with Y-axis as center of rotation is arranged on above-mentioned the second mechanical arm (34); R shaft-cup (35), is installed in the second mechanical arm (34) upper, supporting operation main shaft (38), and there is the through hole running through for described operation main shaft (38);
The upper and lower side of described 2 optical axises (3) is all by the shaft shoulder and base (6) location, the upper endoporus with matching of the upper and lower side of optical axis (3) and base (6) adopts matched in clearance, slide bushing (11) on optical axis (3) is closely fixedly connected with by the first screw (12) with elevating bracket (13), the bottom of described screw mandrel (9) coordinates with the first angular contact ball bearing (8) being arranged in screw mandrel frame (7), and elevating bracket (13) is closely fixedly connected with the screw mandrel nut (10) on screw mandrel (9) by the first screw (12);
Together with X-axis servomotor (17) is connected by screw with the first mechanical arm (18), the first mechanical arm (18), X-axis harmonic speed reducer (15) and elevating bracket (13) link together by the second screw (14) and the 3rd screw (16), thereby drive the parts on the first mechanical arm and the first mechanical arm (18) to rotate along X-axis;
Y-axis servomotor (50) is closely fixedly connected with Y-axis lid (46) by screw, described Y-axis lid (46) is arranged on the first mechanical arm (18) by screw, Y-axis servomotor (50) is driven and is connected by Timing Belt with Y-axis one-level driving pulley (49), Y-axis one-level driving pulley (49) is driven and is connected by Timing Belt with the Y-axis one-level driven pulley (45) being arranged on Y-axis deceleration device two axles (47), be arranged on Y-axis secondary driving pulley (22) on Y-axis deceleration device two axles (47) and be arranged on the upper Y-axis secondary driven pulley (20) of Y-axis deceleration device one axle (48) and drive and be connected by Timing Belt, the three grades of driving pulleys of Y-axis (19) that are arranged on Y-axis deceleration device one axle (48) are driven and are connected by Timing Belt with the three grades of driven pulleys (26) that are arranged on joint shaft (44), thereby drive the parts on the second mechanical arm (34) and the second mechanical arm (34) to rotate along Y-axis, described Y-axis deceleration device one axle (48) and Y-axis deceleration device two axles (47) are set in parallel between the first mechanical arm (18) and Y-axis lid (46) by deep groove ball bearing (21),
Joint shaft (44) coordinates by the shaft shoulder with the second angular contact ball bearing (24) being contained in the first mechanical arm (18), described joint shaft (44) adopts interference fit with the second angular contact ball bearing (24), installing hole on described the first mechanical arm (18) and the second angular contact ball bearing (24) adopt interference fits, the bottom of described the first mechanical arm installing hole has a bearing baffle (23) to be closely fixedly connected with the first mechanical arm (18) by screw, the top of described the first mechanical arm (18) installing hole has a bearing outside (25) to be closely fixedly connected with the first mechanical arm (18) by screw, described the second mechanical arm (34) is connected with joint shaft (44) by flat key with three grades of driven pulleys of Y-axis (26), for transmitting torque, the top of described joint shaft is provided with round nut (42), for the axial location of the second mechanical arm (34),
Described R shaft-cup (35) is closely fixedly connected with by screw with the second mechanical arm (34), described R axle servomotor (43) is closely fixedly connected with by screw with the second mechanical arm (34), described operation main shaft (38) coordinates with the deep groove ball bearing (21) being arranged in R shaft-cup (35), R axle servomotor (43) drives and is connected with R axle one-level driving pulley (27), R axle one-level driving pulley (27) is driven and is connected by Timing Belt with the R axle one-level driven pulley (29) being arranged on R axle deceleration device two axles (31), the R axle secondary driving pulley (32) that is arranged on R axle deceleration device two axles (31) is driven and is connected by Timing Belt with the R axle secondary driven pulley (30) being arranged on R axle deceleration device one axle (28), the three grades of driving pulleys of R axle (41) that are arranged on R axle deceleration device one axle (28) are connected with three grades of driven pulleys of R axle (36) driving being connected on operation main shaft (38), thereby drive the parts on operation main shaft (38) and operation main shaft (38) to rotate along R axle, described R axle deceleration device one axle (28), R axle deceleration device two axles (31) and operation main shaft (38) are set in parallel between the second mechanical arm (34) and R shaft-cup (35) by deep groove ball bearing (21).
2. Timing Belt deceleration plane articulation according to claim 1 robot, it is characterized in that: three grades of driving pulleys of described Y-axis (19), Y-axis secondary driven pulley (20), Y-axis secondary driving pulley (22), three grades of driven pulleys of Y-axis (26), R axle one-level driving pulley (27), R axle one-level driven pulley (29), R axle secondary driven pulley (30), R axle secondary driving pulley (32), three grades of driven pulleys of R axle (36), three grades of driving pulleys of R axle (41), Y-axis one-level driven pulley (45), Y-axis one-level driving pulley (49) all adopts arc tooth synchronous belt wheel.
3. Timing Belt deceleration plane articulation according to claim 2 robot, it is characterized in that: described R axle one-level driving pulley (27) is 4:1 with the speed reducing ratio of R axle one-level driven pulley (29), described R axle secondary driving pulley (32) is 3:1 with the speed reducing ratio of R axle secondary driven pulley (30), and three grades of driving pulleys of described R axle (41) are 4:1 with the speed reducing ratio of three grades of driven pulleys of R axle (36).
CN201320774369.9U 2013-11-28 2013-11-28 Synchronous belt speed reducing plane joint robot CN203579658U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624775A (en) * 2013-11-28 2014-03-12 华南理工大学 Synchronous belt deceleration plane joint robot
CN104343937A (en) * 2014-09-17 2015-02-11 安徽吉晟精密机械科技有限公司 Two-shaft connecting member for stamping robot
CN104369187A (en) * 2014-09-17 2015-02-25 安徽吉晟精密机械科技有限公司 Stamping robot uniaxial assembly
CN109760029A (en) * 2019-03-22 2019-05-17 中国电子科技集团公司第三十八研究所 Platypelloid type one armed robot based on synchronous belt pulley transmission
CN110549321A (en) * 2019-09-12 2019-12-10 苏州龙骐自动化科技有限公司 robot clamping device for logistics transportation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103624775A (en) * 2013-11-28 2014-03-12 华南理工大学 Synchronous belt deceleration plane joint robot
CN103624775B (en) * 2013-11-28 2016-01-06 华南理工大学 A kind of Timing Belt deceleration plane joint robot
CN104343937A (en) * 2014-09-17 2015-02-11 安徽吉晟精密机械科技有限公司 Two-shaft connecting member for stamping robot
CN104369187A (en) * 2014-09-17 2015-02-25 安徽吉晟精密机械科技有限公司 Stamping robot uniaxial assembly
CN104343937B (en) * 2014-09-17 2016-07-06 安徽吉晟精密机械科技有限公司 A kind of pressing robot two shaft coupling piece
CN109760029A (en) * 2019-03-22 2019-05-17 中国电子科技集团公司第三十八研究所 Platypelloid type one armed robot based on synchronous belt pulley transmission
CN110549321A (en) * 2019-09-12 2019-12-10 苏州龙骐自动化科技有限公司 robot clamping device for logistics transportation
WO2021046896A1 (en) * 2019-09-12 2021-03-18 苏州龙骐自动化科技有限公司 Robot gripping device for logistic transportation

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