CN207139842U - A kind of miniature steering wheel robot arm - Google Patents

Abstract

It the utility model is related to a kind of miniature steering wheel robot arm, it in robot arm by setting four joints, and four joints set miniature steering wheel, enable robot arm multi-direction, multi-joint point moves, add the flexibility ratio of robot arm, so that robot can realize multiple directions during fistfight, the attack of multiple angles, and closely fistfight can be directed to make a response rapidly, the utility model steering wheel is interlocked by whole group gear, centralized arrangement, and the potentiometer shaft of the potentiometer is upward through the 3rd of change-speed gearing group the, 4th change-speed gearing, so that the utility model model steering engine is compact-sized, small volume, and then improve the sensitivity rotated and the relay degree that spreads out, task is turned to so as to more can effectively complete each joint of robot arm.

Description

A kind of miniature steering wheel robot arm

Technical field

The invention belongs to robotic technology field, and in particular to a kind of miniature steering wheel robot arm.

Background technology

Small scale robot, humanoid robot of particularly grappling, it is robot type very popular at present, also there is a variety of be directed to The match of different type Grapple Robots, the interest of research staff is excited, also open a new market.With science and technology Development, increasing enterprise-like corporation enter Grapple Robots field, and all kinds of Grapple Robots product functions are weeded out the old and bring forth the new, very It is abundant.And with the development of artificial intelligence technology and internet, more work(based on voice interface, recognition of face, App interconnections etc. Energy robot progresses into everybody sight.

Control unit of the steering wheel as the direction of motion, appears in model airplane field earliest.Afterwards, with science and technology Continue to develop, the application of steering wheel is more and more extensive.Not only in model airplane, also it can be seen that it is answered in other models With：It is used for controlling tail vane on ship model, is used for turning in car mould.As can be seen here, it is every to need to use when operating sexual act Steering wheel is realized.

At present, in the industry cycle common model steering engine includes such as lower component substantially：It is small direct current motor, change-speed gearing group, anti- Present adjustable potentiometer and automatically controlled circuit board.Such element is fixedly arranged in a steering wheel main body, is entered each other and in some way Row connection.Wherein, small direct current motor is to provide original power, and the original power is transferred into change-speed gearing group；Speed change Gear train transmits swing rod of the torsion to external model to adjust torque magnitude, and then passes through the swing rod implementation model Go to action；Adjustable potentiometer is fed back the rotating signal of model swing rod is fed back into automatically controlled circuit board；Automatically controlled circuit board one Aspect is used to receive external signal, so as to start small direct current motor motion, is on the other hand used to receive feedback adjustable potentiometer Ground feedback signal, thus controls rotating and the anglec of rotation of small direct current motor, and then is accurately positioned whole steering wheel.

However, above-mentioned traditional model steering engine is directly upper and lower by the swing rod for feeding back adjustable potentiometer and the external model It is fixedly arranged at change-speed gearing group side so that the overall structure of the conventional model steering wheel is more open, and volume is larger, and then influences to turn Dynamic sensitivity.Robot arm plays very important effect during robot fistfight, and the flexibility of hand joint can The victory or defeat of robot fistfight is served conclusive, and the design of arm can increase the elements such as armament equipment, laser equipment, The enjoyment of robot fistfight is enriched, also makes robot fistfight type variation, therefore the design and flexibility ratio of robot arm It is extremely important.And the motion of robot arm joint drives mainly by steering wheel and completed, but existing robot toy on the market Simple motion is can be only done, various game function can not be realized.And the existing toy robot free degree is few, action association The defects such as tonality is poor, kinematic accuracy is low, it is unable to reach anthropomorphic state action, it is difficult to meet the current market demand.For robot Arm, small scale robot is in the design aspect of arm at present, arm activity underaction, and bent inconvenience is stretched in joint so that robot More preferable Consumer's Experience can not be brought during fistfight.

Utility model content

It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of miniature steering wheel robot arm.

To achieve the above object, the present invention provides a kind of miniature steering wheel robot arm, is arranged on robot body, machine Device human agent includes front/rear face and left/right two sides, and the arm includes the first joint, shoulder, the second pass being sequentially connected Section, postbrachium, the 3rd joint, forearm, the 4th joint and hand, the shoulder are connected by the first joint with robot body, The postbrachium is connected by second joint with shoulder, and the forearm is connected by the 3rd joint with postbrachium, and the hand passes through Four joints are connected with forearm, and the forearm and postbrachium form arm axis；

The shoulder is rotated based on the first joint relative to robot body, and rotational plane is parallel to robot body side Face；The postbrachium is swung based on second joint relative to shoulder, and swaying direction is included towards robot body and away from robot Main body；The forearm is rotated based on the 3rd joint relative to postbrachium, and rotation direction is to be rotated around the arm axis；The hand Based on the 4th joint relative to preceding arm swing, swinging axle vertical arm axis.

First joint, second joint, each built-in steering wheel in the 3rd joint and the 4th joint, in the steering wheel at least There is a kind of steering wheel structure to include steering wheel main body, the steering wheel lower body part houses wiring board, and top houses change-speed gearing group, and middle part is received Hold motor and potentiometer, the motor are electrically connected at the wiring board side, it is another that the potentiometer is electrically connected at the wiring board Side, top surface connection potentiometer bearing, the change-speed gearing group include the motor gear of corresponding motor side arrangement, first Change-speed gearing, corresponding potentiometer side arrangement the 4th, the 5th change-speed gearing and be arranged between the both sides second, the Three change-speed gearings, described first and second, four, five change-speed gearings include canine tooth and be consolidated in the small tooth of the big crest top land, described the Three change-speed gearings include canine tooth and are consolidated in the small tooth of the canine tooth bottom surface, and the motor gear is set up in the motor top；Institute State first stud gear to be set up on a short tooth wheel shaft, and the first stud gear is located above motor gear；Described second, Three change-speed gearings are set up on a long tooth wheel shaft, and the 3rd change-speed gearing is located above second stud gear；Described 4th becomes Fast tooth rest is on the potentiometer bearing of the potentiometer；The motor gear engages with the canine tooth of second stud gear；Institute The small tooth for stating second stud gear engages with the canine tooth of first stud gear；The small tooth and the 3rd speed change of the first stud gear The canine tooth engagement of gear；The small tooth of 3rd change-speed gearing engages with the canine tooth of the 4th change-speed gearing；4th gear teeth The small tooth of wheel engages with the canine tooth of the 5th change-speed gearing.

The robot body is the general name at other outer positions of robot arm, and the robot body can be according to different Need to be designed, for humanoid robot of grappling, the camera of similar human eye can be set in robot head, pass through shooting The image that head is passed on, the attack process of other side is observed, so as to analyze the coping style of itself, increase fistfight is interesting.The present invention Robot arm is similar to human arm, including four parts, shoulder, postbrachium, forearm and hand, and each part passes through joint Connection.Robot body includes front-back and two sides, similar to the two sides of the chest of human body, back and body, wherein Arm is arranged on side, and in order to be better understood from the rotation direction of arm, it is a plane to define robot front-back, two sides For another plane, two planes are mutually perpendicular to, and the forearm of robot arm and postbrachium connect into an axle in addition, form arm Axially.

The one end in first joint is fixed with shoulder, and the other end is rotatablely connected with robot body so that shoulder can Rotated based on the first joint relative to robot body, rotational plane is parallel to robot body side；And shoulder being capable of band Postbrachium, forearm and the hand of dynamic shoulder lower end move together, similar human arm, realize the front and rear pendulum of the whole arm of robot Dynamic, it is circular shaped motion scope of the center of circle arm length as radius to be formed using the first joint.

The second joint both ends are connected at the front-back symmetric position of shoulder so that postbrachium can be based on second joint Swung relative to shoulder, before swaying direction is included towards robot body and away from robot body, while postbrachium can drive Arm and hand move together, are formed using second joint as the center of circle, using postbrachium, forearm and hand length as a quarter of diameter Circular shaped motion scope.

Described 3rd joint one end connects postbrachium, one end connection forearm so that the forearm be based on the 3rd joint relative to Postbrachium rotates, and rotation direction is to be rotated around the arm axis, and hand can be driven to move together.Formed using the 3rd joint as Center, circular shaped motion scope of the weapon as radius is held using hand.

The 4th joint both ends are arranged on the symmetrical position of forearm so that the hand can be put along before and after forearm It is dynamic.Pass through the setting in four joints so that robot arm can the motion of multi-direction, multi-joint point, add robot arm Flexibility ratio so that robot can realize the attack of multiple directions, multiple angles during fistfight.

The setting in four joints can realize the scope of activities of robot arm different directions, scope of activities is reached maximum Change, and each joint cooperates, arm can the multi-faceted stretching, extension of multi-angle, add the flexibility ratio of arm.

Steering wheel is a kind of position（Angle）The driver of servo, angle is needed constantly to change and can keep suitable for those Control system.It is more and more extensive with the continuous development of science and technology, the application of steering wheel.Not only in model airplane, in machine Also it can be seen that its application in device people's model.Four joints are mainly started the motion of arm by the rotational band of steering wheel, by tight Gather the setting of type steering wheel so that robot arm can multi-direction, multi-joint point motion, add the flexible of robot arm Degree so that robot can realize the attack of multiple directions, multiple angles during fistfight.

Further, the steering wheel main body includes lower cover, middle cover and upper lid from bottom to top, and three's locking closure is integrated, wherein The wiring board, motor and potentiometer are assembled in the space after lower cover and middle cover cover；Sky after upper lid covers with middle cover Between the middle assembling change-speed gearing group.

Further, the lower cover side is embedded External cable linkage interface element.

Further, the first stud gear is set up in the bottom of the short tooth wheel shaft.

Further, the second stud gear is set up in the bottom of the long tooth wheel shaft, the 3rd change gear bracket Located at the top of the long tooth wheel shaft.The lower cover side is embedded External cable linkage interface element.

Further, first joint include the first steering wheel in the robot body, located at robot body with The first axle of shoulder junction and the clutch shaft bearing for supporting first axle, described first axle one end and the fixed connection of shoulder, separately One end is connected with the first steering wheel rotating shaft, and the robot body engages provided with the first neck with clutch shaft bearing；

The second joint includes the second steering wheel inside postbrachium, second located at postbrachium and shoulder side junction First steering wheel of axle, the second bearing for supporting the second axle and postbrachium and shoulder opposite side junction, described second axle one end with Postbrachium is fixed, and the other end is rotatablely connected by second bearing and shoulder, and the first steering wheel side is fixed with shoulder, opposite side and Second steering wheel rotating shaft connects；

3rd joint includes the 3rd steering wheel located at forearm inner upper end, the located at postbrachium and forearm junction the 3rd Axle and the 3rd bearing for supporting the 3rd axle, described 3rd axle one end and the fixed connection of postbrachium, the other end and the 3rd steering wheel turn Axis connection, the forearm engage provided with the second neck with 3rd bearing；

4th joint includes the 4th steering wheel located at forearm interior lower end, located at forearm and hand side junction 4th axle, the fourth bearing for supporting the 4th axle and forearm and the second steering wheel of hand opposite side junction, the 4th axle one End is fixed with forearm, and the other end is rotatablely connected by fourth bearing and hand, and the second steering wheel side is fixed with hand, another Side is connected with the 4th steering wheel rotating shaft.

First steering wheel is arranged on inside robot body close to the side position of robot body bilateral two, convenient and arm Connection.Described first axle one end is welded and fixed with shoulder or is connected for integral type, and the other end is connected with the first steering wheel rotating shaft so that When first steering wheel works, first metal shaft, which can drive, rolls over.Due to the rotation of the first steering wheel, whole arm can be driven Motion, therefore, in order that the operation of the first steering wheel is more stable, be disposed inside robot body.The clutch shaft bearing For becket, first axle is supported by clutch shaft bearing, prevents rocking in steering wheel motion.Robot body's shell is generally The component of plastic material, shell synthesize an entirety by front and rear casing, body interior component are surrounded, played a protective role. Shell is provided with the first neck, is engaged clutch shaft bearing by front and rear engaging.When the first steering wheel drives first axle to rotate, first Bearing is fixed.Because robot body is plastic material at the first neck, therefore the setting of clutch shaft bearing is in order to anti- Only first axle is rocked in rotation process caused by wheelbase is longer, and robot body may be blocked in rotation process Groove location causes to wear, and influences robot service life.Moving forward and backward for whole arm can be achieved in the design in the first joint, makes machine The firing area of device people has covered the scope of tensible before and after arm length.

Because shoulder inner space is limited, and arm is moved up and down for convenience, and the second steering wheel of the second joint is set Put inside postbrachium, the postbrachium both sides are connected by the second axle and the first steering wheel with shoulder, form T-shaped structure, by postbrachium It is suspended on shoulder.Further, the postbrachium is made up of the component of left and right two panels plastic material, and steering wheel is wrapped in into inside, Neck is installed provided with corresponding with the second axle in the postbrachium top.Likewise, in order to prevent the second axle abrasion postbrachium installation neck, The present invention is provided with second bearing on the second axle, and second axle is rotatablely connected with shoulder.Axle due to connecting steering wheel rises main Supporting role, therefore the axle needs the installation position of enough diameters and sufficient space, due to installing the limitation of bit space, this hair It is bright that axle is changed to steering wheel replacement, save space.First steering wheel is designed to reduction installation volume, and can strengthen moment of torsion. When the second steering wheel works, because the first steering wheel is fixed on, shoulder is immovable, and now the second steering wheel can drive postbrachium to move, from And the second axle is and then rotated, final postbrachium drives forearm and hand opposite shoulder to be moved up and down.The design of second joint The up and down motion of arm can be realized, with reference to the first joint, can realize that robot arm can cover after all around stretching Maximum magnitude.

3rd articulation structure is similar to the first articulation structure, due to robot arm postbrachium inner space in the present invention It is only sufficient to set a steering wheel, therefore the 3rd steering wheel is arranged on the upper end inside the forearm, the described 3rd is located in postbrachium With forearm junction, described 3rd axle one end is welded and fixed with postbrachium, and the other end connects in the 3rd steering wheel rotating shaft so that the 3rd rudder When machine works, the 3rd axle can drive forearm rotation.The 3rd bearing is becket, is arranged on the 3rd axle, after described Arm is equally made up of front and rear two blocks of components that can be mutually combined, and the component is fixed by bolt arrangement.The present invention passes through The second neck that front and rear two module components are formed fixes the 3rd bearing.When 3rd steering wheel works, the 3rd axle can be driven Rotate, and 3rd bearing is due to being fixed on the second neck, therefore will not rotate, play a part of supporting the 3rd axle, prevent from rocking. The setting of the 3rd bearing is to prevent the 3rd axle from being rocked in rotation process caused by wheelbase is longer, and is being turned Robot body's groove position may be caused to wear during dynamic, influence robot service life.The design master in the 3rd joint If set by piecewise joint to increase the flexibility ratio of arm, particular for fistfight closely.It is auxiliary by the 3rd joint Motion is helped, can be made a response rapidly.

Because robot hand can design the weapons such as peashooter, knife, sword, thus hand leave it is idle limited, and by It is sufficient in the forearm inner space, therefore the steering wheel in the 4th joint is arranged on the forearm interior lower end.The steering wheel leads to The front and rear component for crossing forearm is fastened on inside forearm, wherein the one side of the steering wheel be emerging in outside forearm and with the face fore-arm In same plane.4th articulation structure is similar to second joint, and described 4th axle one end is welded and fixed with forearm, the other end and hand Portion is rotatablely connected so that hand can rotate around the 4th axle.Described second steering wheel one end is connected with steering wheel rotating shaft, can be turned around steering wheel Dynamic, the other end is fixed on hand and the 4th axisymmetric position.When 4th steering wheel works, by driving the second steering wheel to rotate, So that hand can be axially moved perpendicular to arm axis.The setting in the 4th joint is provided with the feelings of weapon primarily directed to hand Under condition, by the booster action in the 4th joint, attack can be quickly made, action is more nimbly and freely increased fistfight It is interesting.

Further, one end that the first axle is connected with the first steering wheel is stepped；3rd axle is connected with the 3rd steering wheel One end it is stepped.

Axle plays connection, supports a series of effects such as passing power by connecting two parts, at work, due to by To flexure stress and shock loading, therefore the part should have enough rigidity, intensity and toughness.To adapt to the change of its working environment Change.Because different link positions needs the diametric requirements to axle different, in the present invention, first axle one end and shoulder welding are solid It is fixed, due to the first axle larger moment of torsion that needs are born when rotating, therefore it is required that axle has sufficiently large diameter, therefore designing When, the diameter design of first axle and shoulder fixing end is sufficiently large, and the two is welded together.On the other hand, due to first axle The other end is connected with the steering wheel inside robot body, and axle needs to insert in steering wheel, and due to the present invention, design is miniature rudder Machine, therefore it is large enough to hold the big volume of first axle without enough volumes.Equally, the 3rd axle is also configured as step-like, Neng Goushi Axle both ends are answered to connect the demand of different parts.So in the present invention, it is arranged in first axle and the 3rd axle close to steering wheel one end Stepped axle, wherein in most thin central shaft insertion steering wheel, increase it by incrementally increasing the diameter of first axle and the 3rd axle The moment of torsion that can bear, the reliability and compactness of connection are added, also can at utmost prevent the skidding of axle, add operation Stability, extend service life.

Further, first steering wheel and the second steering wheel are step-like disk, and the step-like disk is at least by fixing Formula bilayer disk and the cylinder axis composition for being fixed on double-deck disc centre.

Because the shoulder and postbrachium junction and forearm and hand junction locus of the robot arm are limited, Stepped axle is set as the 3rd joint without the joint of the image of Buddha first, therefore the first rudder is set in second joint and the 4th joint Disk and the second steering wheel, by increasing capacitance it is possible to increase driving torque in arm motion, while also can farthest save volume, can be Steering wheel and arm are fixed in limited space.Further, because first steering wheel one end is fixed with shoulder, the other end with The movable fixation of second steering wheel, due to fixed from shoulder and with the second steering wheel fix requirement it is different, therefore the steering wheel by consolidate Fixed pattern bilayer disk and the cylinder axis composition for being fixed on double-deck disc centre.Because cylinder axis is inserted in steering wheel, therefore cylinder axis Diameter is smaller, and the work of steering wheel mainly causes the motion of cylinder axis, therefore the moment of torsion that cylinder axis is born is maximum, therefore, In order to prevent that sufficiently large moment of torsion can be born in the course of work of cylinder axis, in design by being stepped up cylinder shaft diameter To realize, therefore double-deck disk is devised, the double-deck disk diameter gradually increases, and the cylinder axis is fixed on disc centre. Being designed to of the steering wheel bilayer ring preferably drives arm motion, adds the flexibility ratio of arm.

Further, the first limit space that size is more than clutch shaft bearing is provided between the first axle and shoulder, it is described Clutch shaft bearing is arranged in the first limit space and fixed by the first neck；It is more than between 3rd axle and postbrachium provided with size Second limit space of 3rd bearing, the 3rd bearing are arranged in the second limit space and fixed by the second neck.

The clutch shaft bearing and 3rd bearing are circular metal ring, and cyclization in first axle and the 3rd axle, is played respectively Support the effect of first axle and the 3rd axle.Because first axle, the 3rd axle, clutch shaft bearing and 3rd bearing are all metal material, ,, may due to the difference of material when the neck of plastic material engages bearing in processing and robot shells are plastic material Occur that deviation occurs in engaging, make the product quality of processing unqualified, therefore size is provided between the first axle and shoulder More than the first limit space of clutch shaft bearing thickness, the clutch shaft bearing is arranged in the first limit space to be consolidated by the first neck It is fixed；The second limit space that size is more than 3rd bearing thickness, the 3rd bearing peace are provided between 3rd axle and postbrachium Fixed in the second limit space by the second neck.The setting of limit space can make more to facilitate during installation, and can Prevent from the structure of unlike material from combining to occur engaging situation not in place, ensure that crudy.

Further, the postbrachium and forearm are respectively equipped with control line installation position, and the control line installation position is provided with control Line entrance, the postbrachium control line entrance are located at postbrachium control line installation position lower end, and the forearm control line entrance is located at forearm Control line installation position upper end.

Beneficial effects of the present invention：Miniature steering wheel is set by four joints so that robot arm can be multi-direction, more Artis is moved, and adds the flexibility ratio of robot arm so that robot can realize multiple directions, more during fistfight The attack of individual angle, and closely fistfight can be directed to and made a response rapidly, the utility model steering wheel passes through whole group gear Staggeredly, centralized arrangement, and the potentiometer shaft of the potentiometer is upward through to the three, the 4th gear teeth of change-speed gearing group Wheel so that the utility model model steering engine is compact-sized, small volume, and then improves the sensitivity rotated and the relay degree that spreads out, from And it more can effectively complete each joint of robot arm and turn to task.

Brief description of the drawings

Fig. 1 is robot body's front view of the present invention.

Fig. 2 is floor map residing for robot body of the present invention.

Fig. 3 is robot arm front view of the present invention.

Fig. 4 is robot arm stereogram of the present invention.

Fig. 5 is robot arm top view of the present invention.

Fig. 6 is robot arm explosive view of the present invention.

Fig. 7 is the utility model steering wheel explosive view.

Specific embodiment

As shown in figure 1, a kind of robot arm, is arranged on robot body 1, robot body 1 include above 11, after Face 12, left surface 13 and right flank 14, as shown in Fig. 2 be floor map residing for robot body, including front and rear parallel surface 15 and left and right side parallel surface 16.As shown in Fig. 3 ~ 4, the arm includes the first joint 2, the pass of shoulder 3, second being sequentially connected Section 4, postbrachium 5, the 3rd joint 6, forearm 7, the 4th joint 8 and hand 9, the shoulder 3 pass through the first joint 2 and robot master Body 1 is connected, and the postbrachium 5 is connected by second joint 4 with shoulder 3, and the forearm 7 is connected by the 3rd joint 6 with postbrachium 5, The hand 9 is connected by the 4th joint 8 with forearm 7, and the forearm 7 and postbrachium 5 form arm axis.The shoulder 3 is based on First joint 2 rotates relative to robot body 1, and rotational plane is parallel to robot or so parallel surface 16；The postbrachium 5 is based on Second joint 4 is swung relative to shoulder 3, and swaying direction is included towards robot body and away from robot body；The forearm 7 Rotated based on the 3rd joint 6 relative to postbrachium 5, rotation direction is to be rotated around the arm axis；The hand is based on the 4th and closed Section 8 is swung relative to forearm 7, swinging axle vertical arm axis.

Further, as shown in figure 5, first joint 2 includes the first steering wheel 21 in the robot body 1, set In the first axle 22 of robot body 1 Yu the junction of shoulder 3 and the clutch shaft bearing 23 of support first axle, the first axle 22 1 End and 3 fixed connection of shoulder, the other end are connected with the rotating shaft of the first steering wheel 21, and the robot body 1 is provided with the first neck 17 Engage with clutch shaft bearing 23；

As shown in fig. 6, the second joint 4 includes the second steering wheel 41 inside the postbrachium 5, located at postbrachium 5 and shoulder 3 The of second axle 42 of side junction, the second bearing 43 for supporting the second axle 42 and postbrachium 5 and the opposite side junction of shoulder 3 One steering wheel 44, described one end of second axle 42 are fixed with postbrachium 5, and the other end is rotatablely connected by second bearing 43 and shoulder 3, described The side of first steering wheel 44 is fixed with shoulder 3, and opposite side is connected with the rotating shaft of the second steering wheel 41；The shoulder 3 include shoulder decoration 31, Shoulder frame 32, shoulder side plate 33, the postbrachium includes postbrachium decorative frame 51, postbrachium decoration 52, postbrachium shell 53 and postbrachium lid 54, described Second steering wheel 41 is installed on postbrachium shell 53 and postbrachium lid 54 is fastened in the cavity formed.

3rd joint 6 includes the 3rd steering wheel 61 located at the inner upper end of forearm 7, located at postbrachium 5 and the junction of forearm 7 The 3rd axle 62 and support the 3rd bearing 63 of the 3rd axle 62, described one end of 3rd axle 62 and 5 fixed connection of postbrachium are another End is connected with the rotating shaft of the 3rd steering wheel 61, and the forearm 7 engages provided with the second neck 71 with 3rd bearing 63；The forearm 7 includes Forearm decoration 72, forearm shell 73 and forearm lid 74, forearm shell 73 and forearm lid 74 upper end mutually fasten to form the second card Groove 71, and cavity is internally formed, the 3rd steering wheel 61 and the 4th steering wheel 81 are installed.

4th joint 8 includes the 4th steering wheel 81 located at the interior lower end of forearm 7, connected located at forearm 7 and the side of hand 9 Connect the 4th axle 82, the fourth bearing 83 for supporting the 4th axle 82 and the forearm 7 and the second steering wheel of the opposite side junction of hand 9 at place 84, described one end of 4th axle 82 is fixed with forearm 7, and the other end is rotatablely connected by fourth bearing 83 and hand 9, second rudder The side of disk 84 is fixed with hand 9, and opposite side is connected with the rotating shaft of the 4th steering wheel 81.

Further, one end that the first axle 22 is connected with the first steering wheel 21 is stepped；3rd axle 62 and the 3rd rudder One end that machine 61 connects is stepped.

Further, the steering wheel 84 of the first steering wheel 44 and second is step-like disk, and the step-like disk is by fixing Formula bilayer disk and the cylinder axis composition for being fixed on double-deck disc centre.

Further, the first limit space that size is more than clutch shaft bearing 23 is provided between the first axle 22 and shoulder 3, The clutch shaft bearing 23 is arranged in the first limit space and fixed by the first neck 17；

Between 3rd axle 62 and postbrachium 5 be provided with size be more than 3rd bearing 63 the second limit space, the described 3rd Bearing 63 is arranged in the second limit space and fixed by the second neck 71.

The postbrachium 5 and forearm 7 are respectively equipped with control line installation position, respectively postbrachium decoration 51 and forearm decoration 72 The cavity in besieged city.The control line installation position is provided with control line entrance, and the postbrachium control line entrance is pacified located at postbrachium control line Position lower end is filled, the forearm control line entrance is located at forearm control line installation position upper end.

At least a kind of steering wheel structure includes steering wheel in first steering wheel, the second steering wheel, the 3rd steering wheel and the 4th steering wheel Main body 100, as shown in fig. 7, comprises steering wheel main body 100, the steering wheel main body 100 include from bottom to top lower cover 10, middle cover 20 and on Lid 30, three are substantially in the rectangular box shape of lateral arrangement, wherein, at four longitudinal ribs of lower cover 10, four of middle cover 20 Screw hole is opened up at longitudinal rib and at the bottom surface corner of upper lid 30, is passed through from bottom to top for one group of screw 40, therefrom by under Lid 10, middle cover 20 and the locking closure of upper lid 30 are integrated.The lower cover 10 of the steering wheel 100 covered with middle cover 20 after space in assemble circuit Plate 50, tooth case rubber head 60, motor 70 and potentiometer 80；Change-speed gearing group is assembled in the space after upper lid 30 and middle cover 20 cover 90。

The inner horizontal of lower cover 10 is embedded the wiring board 50, and the side of lower cover 10 is embedded the tooth case rubber head 60.Wherein, as The tooth case rubber head 60 of External cable linkage interface element is used to wear for an external model signal wire and fixed.The signal wire outer end It is electrically connected with a model control device in the robot arm, it is inner to be electrically connected with the wiring board 50, The signal transmission being achieved between steering engine control device and wiring board 50.

For the locking closure of middle cover 20 above lower cover 10, interior side houses the motor 70, and opposite side houses the potentiometer 80. The motor 70 and potentiometer 80 are placed in the top of wiring board 50, and then are electrically connected with the wiring board 50, thus real Existing signal transmission between motor 70 and potentiometer 80 and the wiring board 50.And potentiometer 80 is fixed under potentiometer frame 801 Side, the top of potentiometer frame 801 simultaneously connect column potentiometer shaft and hold 802.

The upper locking closure of lid 30 houses therebetween the change-speed gearing group 90 above middle cover 20.The change-speed gearing group 90 is wrapped Include motor gear 96, the first stud gear 91 of the corresponding side of motor 70 arrangement, the corresponding side of potentiometer 80 arrangement The four, the 5th change-speed gearings 94,95 and second, third change-speed gearing 92,93 for being arranged between the both sides.The gear teeth Wheel 91,92,93,94,95 forms by one group of coaxial canine tooth 901 and small tooth 902, wherein, the small tooth of the 3rd change-speed gearing 93 902 are consolidated in the middle part of the bottom surface of canine tooth 901, and the small tooth 902 of first, second, the four, the 5th change-speed gearings 91,92,94,95 is then It is consolidated in the middle part of the top surface of canine tooth 901.Such gear 91,92,93,94,95,96 has following relative position relation and engagement Relation：First stud gear 91 is located at the surface of motor gear 96, and the two is simultaneously spaced suitable distance；3rd change-speed gearing 93 Positioned at the surface of second stud gear 92, the two is simultaneously spaced suitable distance；Motor gear 96 is big with second stud gear 92 Tooth 901 is located at same level, and the two is simultaneously engaged with each other；The small tooth 902 of second stud gear 92 and first stud gear 91 Canine tooth 901 is located at same level, and the two is simultaneously engaged with each other；The change-speed gearing 93 of small tooth 902 and the 3rd of first stud gear 91 Canine tooth 901 be located at same level, the two is simultaneously engaged with each other；The change-speed gearing of small tooth 902 and the 4th of 3rd change-speed gearing 93 94 canine tooth 901 is located at same level, and the two is simultaneously engaged with each other；The gear teeth of small tooth 902 and the 5th of 4th change-speed gearing 94 The canine tooth of wheel 95 is located at same level, and the two is simultaneously engaged with each other.

In assembling, the motor gear 96 passes downwardly through a sunk screw 99 and is set up in motor 70 steering wheel 100 Top, and can be with the synchronous rotary of motor 70 by the design of known features.The first stud gear 91 is set up in a longitudinal cloth The top for the short tooth wheel shaft 98 put.The second stud gear 92 is set up in the bottom of a long tooth wheel shaft 97 being longitudinally arranged, institute State the top that the 3rd change-speed gearing 93 is set up in the long tooth wheel shaft 97.During the potentiometer bearing 82 of the potentiometer 80 is upward through Lid 20 and the bottom for being set up in the 4th change-speed gearing 94.The small tooth 902 of 5th change-speed gearing 95 protrudes out upwards Lid 30, engaged with the metal shaft of the robot arm.

The course of work of the steering wheel 100 approximately as：The robot arm control device is by being embedded at tooth case glue Signal wire in first 60 transmits rotation activation signal to wiring board 50, and wiring board 50 receives the signal and the rotation of starter motor 70 is made It is dynamic, and then drive the synchronous rotary start of change-speed gearing group 90.Now, on the one hand, the 5th change-speed gearing 95 of change-speed gearing group 90 Small tooth 902 drive robot arm metal shaft synchronous rotary, it is another so as to proceed by the steering operation of the robot arm The change-speed gearing 95 of aspect the 5th drives the synchronous rotary of potentiometer bearing 802 of potentiometer 80, and then the electricity by known features The rotating signal is fed back to wiring board 50 by position device 80, so that by the control machine human arm of wiring board 50, can be accurate Rotate to predetermined direction.

In the above-mentioned course of work, the torque transmission mode of change-speed gearing group 90 approximately as：First, motor 70 drives horse Up to the synchronous rotary of gear 96；Then, motor gear 96 drives the synchronous rotation of the canine tooth 901 of the second stud gear 92 engaged Turn, the small tooth 902 of second stud gear 92 also synchronous rotary；Then, the small tooth 902 of second stud gear 92 drives and engaged First stud gear 91 the synchronous rotary of canine tooth 901, the small tooth 902 of first stud gear 91 also synchronous rotary；Then, first The small tooth 902 of change-speed gearing 91 drives the synchronous rotary of canine tooth 901 of the 3rd change-speed gearing 93 engaged, the 3rd change-speed gearing 93 small tooth 902 also synchronous rotary；And then the 3rd the small tooth 902 of change-speed gearing 93 drive the 4th change-speed gearing that engages 94 synchronous rotary of canine tooth 901, the small tooth 902 of the 4th change-speed gearing 94 also synchronous rotary；And then, the 4th change-speed gearing 94 is small Tooth 902 drives the synchronous rotary of canine tooth 901 of the 5th change-speed gearing 95 engaged, and the small tooth 902 of the 5th change-speed gearing 95 is also Synchronous rotary；Finally, the small tooth 902 of the 5th change-speed gearing 95 drives the metallic rod of the robot arm engaged synchronous Rotation.

As described above, the utility model model steering engine 100 by whole group gear staggeredly, centralized arrangement, and will described in The potentiometer bearing 802 of potentiometer 80 is set up in the bottom of the 4th change-speed gearing 94 of the change-speed gearing group 90 upwards so that The utility model model steering engine 100 is compact-sized, small volume, and then improves the sensitivity rotated and the relay degree that spreads out, so as to more Steering task can effectively be completed.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (10)

1. a kind of miniature steering wheel robot arm, a kind of robot arm, is arranged on robot body, robot body includes Front/rear face and left/right two sides, the arm include the first joint, shoulder, second joint, postbrachium, the 3rd pass being sequentially connected Section, forearm, the 4th joint and hand, the shoulder are connected by the first joint with robot body, and the postbrachium passes through Two joints are connected with shoulder, and the forearm is connected by the 3rd joint with postbrachium, and the hand is connected by the 4th joint and forearm Connect, the forearm and postbrachium form arm axis；It is characterized in that：The shoulder is based on the first joint relative to robot body Rotate, rotational plane is parallel to robot body side；

The postbrachium is swung based on second joint relative to shoulder, and swaying direction is included towards robot body and away from robot Main body；

The forearm is rotated based on the 3rd joint relative to postbrachium, and rotation direction is to be rotated around the arm axis；The hand Based on the 4th joint relative to preceding arm swing, swinging axle vertical arm axis；

First joint, second joint, each built-in steering wheel in the 3rd joint and the 4th joint, at least one in the steering wheel Kind steering wheel structure includes steering wheel main body, and the steering wheel lower body part houses wiring board, and top houses change-speed gearing group, and middle part houses horse Reaching and potentiometer, the motor are electrically connected at the wiring board side, the potentiometer is electrically connected at the wiring board opposite side, Top surface connects potentiometer bearing；

The change-speed gearing group includes the motor gear, first stud gear, corresponding potentiometer of corresponding motor side arrangement The four, the 5th change-speed gearings and second, third change-speed gearing for being arranged between the both sides of side arrangement, described the First, two, four, five change-speed gearings include canine tooth and are consolidated in the small tooth of the big crest top land, and the 3rd change-speed gearing includes big Tooth and the small tooth for being consolidated in the canine tooth bottom surface, the motor gear are set up in the motor top；

The first stud gear is set up on a short tooth wheel shaft, and the first stud gear is located above motor gear；It is described Second, third change-speed gearing is set up on a long tooth wheel shaft, and the 3rd change-speed gearing is located above second stud gear；It is described 4th change-speed gearing is set up on the potentiometer bearing of the potentiometer；

The motor gear engages with the canine tooth of second stud gear；The small tooth and first stud gear of the second stud gear Canine tooth engagement；The small tooth of the first stud gear engages with the canine tooth of the 3rd change-speed gearing；3rd change-speed gearing Small tooth engages with the canine tooth of the 4th change-speed gearing；The small tooth of 4th change-speed gearing engages with the canine tooth of the 5th change-speed gearing.

2. miniature steering wheel robot arm according to claim 1, it is characterised in that the steering wheel main body includes from bottom to top Lower cover, middle cover and upper lid, three's locking closure are integrated, wherein assembled in the space after lower cover and middle cover cover the wiring board, Motor and potentiometer；The change-speed gearing group is assembled in the space after upper lid covers with middle cover.

3. miniature steering wheel robot arm according to claim 2, it is characterised in that the lower cover side is embedded External cable Linkage interface element.

4. miniature steering wheel robot arm according to claim 1, it is characterised in that the first stud gear is set up in institute State the bottom of short tooth wheel shaft.

5. miniature steering wheel robot arm according to claim 1, it is characterised in that the second stud gear is set up in institute The bottom of long tooth wheel shaft is stated, the 3rd change-speed gearing is set up in the top of the long tooth wheel shaft.

6. miniature steering wheel robot arm according to claim 1, it is characterised in that first joint includes being located at machine The first steering wheel in human agent, the first axle located at robot body Yu shoulder junction and the first axle for supporting first axle Hold, described first axle one end and the fixed connection of shoulder, the other end are connected with the first steering wheel rotating shaft, and the robot body is provided with First neck engages with clutch shaft bearing；

The second joint include the second steering wheel inside the postbrachium, the second axle located at postbrachium Yu shoulder side junction, Support the second bearing and postbrachium and the first steering wheel of shoulder opposite side junction, described second axle one end and postbrachium of the second axle Fixed, the other end is rotatablely connected by second bearing and shoulder, and the first steering wheel side is fixed with shoulder, opposite side and second Steering wheel rotating shaft connects；

3rd joint include located at forearm inner upper end the 3rd steering wheel, located at postbrachium and forearm junction the 3rd axle with And the 3rd bearing of the 3rd axle of support, described 3rd axle one end and the fixed connection of postbrachium, the other end and the 3rd steering wheel rotating shaft connect Connect, the forearm engages provided with the second neck with 3rd bearing；

4th joint includes the 4th steering wheel located at forearm interior lower end, the located at forearm and hand side junction the 4th Second steering wheel of axle, the fourth bearing for supporting the 4th axle and forearm and hand opposite side junction, described 4th axle one end with Forearm is fixed, and the other end is rotatablely connected by fourth bearing and hand, and the second steering wheel side is fixed with hand, opposite side and 4th steering wheel rotating shaft connects.

7. miniature steering wheel robot arm according to claim 6, it is characterised in that the first axle is connected with the first steering wheel One end it is stepped；One end that 3rd axle is connected with the 3rd steering wheel is stepped.

8. miniature steering wheel robot arm according to claim 6, it is characterised in that first steering wheel and the second steering wheel are Step-like disk, the step-like disk is at least by fixed double-deck disk and the cylinder axis group for being fixed on double-deck disc centre Into.

9. miniature steering wheel robot arm according to claim 6, it is characterised in that be provided between the first axle and shoulder Size is more than the first limit space of clutch shaft bearing, and the clutch shaft bearing is arranged in the first limit space to be consolidated by the first neck It is fixed；

The second limit space that size is more than 3rd bearing is provided between 3rd axle and postbrachium, the 3rd bearing is arranged on Fixed in second limit space by the second neck.

10. miniature steering wheel robot arm according to claim 1, it is characterised in that the postbrachium and forearm are respectively equipped with Control line installation position, the control line installation position are provided with control line entrance, and the postbrachium control line entrance is located at postbrachium control line Installation position lower end, the forearm control line entrance are located at forearm control line installation position upper end.