CN204566133U - A kind of four-degree-of-freedom high speed carrying robot mechanism - Google Patents

A kind of four-degree-of-freedom high speed carrying robot mechanism Download PDF

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Publication number
CN204566133U
CN204566133U CN201520223558.6U CN201520223558U CN204566133U CN 204566133 U CN204566133 U CN 204566133U CN 201520223558 U CN201520223558 U CN 201520223558U CN 204566133 U CN204566133 U CN 204566133U
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Prior art keywords
horizontal movement
effector
master arm
screw
bearing
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CN201520223558.6U
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Inventor
刘冀鲁
刘凌云
史志民
章大林
冯凤来
赵正平
赵爱平
史晗
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Ma'anshan Shun Tai rare earth new material Co., Ltd.
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Maanshan Dingtai Rare Earth and New Materials Co Ltd
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Abstract

The utility model discloses a kind of four-degree-of-freedom high speed carrying robot mechanism, comprise horizontal level driving mechanism, vertical position driving mechanism, gesture drive mechanism, end effector mechanism, horizontal level driving mechanism includes motor base, first horizontal movement drive motors, second horizontal movement drive motors, translation bar, motor base is provided with motor base upper cover, motor base is provided with hollow shaft, translation drive shaft, translation drive shaft, hollow shaft has been fixedly connected the first horizontal movement master arm, second horizontal movement master arm, the utility model effectively improves the flexibility of mechanism, increase the operating space of end effector, achieve the combination of parallel connection and serial connection robot mechanism, the inertia simultaneously maintaining mechanism is preferably little, high speed high acceleration, the feature of high position precision and repetitive positioning accuracy.

Description

A kind of four-degree-of-freedom high speed carrying robot mechanism
Technical field
The utility model belongs to Industrial Robot Technology field, is specifically related to a kind of four-degree-of-freedom high speed carrying robot mechanism.
Background technology
High speed transfer robot replaces human labour, complete a kind of industrial robot of fast removal work, be widely used in the automatic production line of the industries such as light industry, medicine, food and electronics, such as sort, pack, the operation such as encapsulation often needs end effector to carry out the manipulator of high-speed job in space, but the precision under the condition of transporting velocity raising of high speed transfer robot in the past will decline to some extent, and the free degree only has three or following usually, operating space is little, and kinematic dexterity is not high yet.
The drive motors of some transfer robot is placed on joint of robot, adds the carrying of robot, makes inertia increase, error accumulation increase, easily produces impact, causes robot motion steady,
The degree of accuracy is low, and be difficult to meet at a high speed, accurate etc. carries requirement.
Utility model content
The utility model, for the technical problem existed in existing high speed carrying robot mechanism, provides a kind of four-degree-of-freedom high speed carrying robot mechanism.
The technical solution adopted in the utility model is as follows:
A kind of four-degree-of-freedom high speed carrying robot mechanism, comprises horizontal level driving mechanism, vertical position driving mechanism, gesture drive mechanism, end effector mechanism;
Described horizontal level driving mechanism includes motor base, first horizontal movement drive motors, second horizontal movement drive motors, translation bar, motor base is provided with motor base upper cover, motor base is provided with hollow shaft, translation drive shaft, translation drive shaft, hollow shaft has been fixedly connected the first horizontal movement master arm, second horizontal movement master arm, first horizontal movement master arm, the second horizontal movement master arm other end has translation bar respectively by bearing hinge connection, transition link, the transition link other end by bearing hinge connection in the middle part of translation bar, the translation bar other end by bearing hinge connection on end effector mechanism microscope carrier, translation drive shaft, hollow shaft is installed with the first horizontal movement gear wheel, second horizontal movement gear wheel, first horizontal movement drive motors, second horizontal movement drive motors is connected to and the first horizontal movement gear wheel, the pinion that second horizontal movement gear wheel is meshed,
Described vertical position driving mechanism includes vertical motion drive motors, motor base, end effector mechanism microscope carrier, ball-screw is by leading screw bearing, lead screw shaft bearing sleeve, bearing outer ring support set is installed on end effector mechanism microscope carrier, ball-screw is combined with the ball screw nut be fixed in end effector mechanism microscope carrier, the large belt wheel of screw mandrel is fixed on end effector mechanism microscope carrier by screw pulley adpting flange, vertical motion drive motors is connected with the screw mandrel small pulley that belt wheel transmission large with screw mandrel is connected, splined nut is passed through in end effector mechanism microscope carrier, splined shaft bearing sleeve is provided with spline bearing, spline bearing internal spline is combined with the optical axis guide pillar be arranged in parallel with ball-screw, optical axis guide pillar lower end is by being installed with moving platform, flange, ball-screw lower end is fixedly installed in moving platform,
Described gesture drive mechanism includes motor cabinet, rotational motion drive motors, rotates master arm, rotate master arm end and be hinged with connecting rod, the connecting rod other end is articulated with on end effector mechanism microscope carrier, rotation master arm and connecting rod, connecting rod and end effector mechanism microscope carrier respectively by bearing hinge connection, thus realize the rotation of end effector mechanism.
Translation drive shaft between the first described horizontal movement master arm and the second horizontal movement master arm is set with sleeve, and translation drive shaft upper surface is provided with translation drive shaft shaft-cup.
Be provided with belt wheel back-up ring below the large belt wheel of described screw mandrel, between the large belt wheel of screw mandrel and screw mandrel small pulley, be set with driving-belt.
First horizontal movement master arm of the present utility model, the second horizontal movement master arm, ball-screw, rotation master arm provide power by respective drive unit; Described end effector can realize translation and move both vertically, and can realize again rotating, and adds a rotational freedom, can realize kinematic dexterity so high, and operating space is large, the carrying requirement of high precision; Described horizontal level driving mechanism contains a parallelogram sturcutre, comprises two groups of master arms simultaneously, increases the rigidity of robot, improves bearing capacity; The utility model contains four groups of servomotors wherein three groups of inside being arranged on frame, realizes the isolation of motor and external operating environment, plays a protective role to a great extent to motor device, can reduce impact again simultaneously, improve the stationarity of robot motion.
The utility model has following Advantageous Effects:
The utility model is by horizontal level driving mechanism, vertical position driving mechanism and gesture drive mechanism; The translation of end effector, vertical motion and rotation can be realized.First horizontal movement master arm, the second horizontal movement master arm of horizontal level driving mechanism of the present utility model provide power by different driving device.Drive and adopt servo-drive system, action is accurate, flexible operation.
Robot mechanism provided by the utility model, two translations one realizing end effector with different driving side chain respectively move both vertically and rotational motion, effectively improve the flexibility of mechanism, increase the operating space of end effector, achieve the combination of parallel connection and serial connection robot mechanism, the inertia simultaneously maintaining mechanism is preferably little, high-speed high acceleration, the feature of high position precision and repetitive positioning accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of four-degree-of-freedom high speed carrying robot mechanism of the present utility model.
Fig. 2 is the structural representation of horizontal level driving mechanism of the present utility model.
Fig. 3 is vertical position driving mechanism structure schematic diagram of the present utility model.
Fig. 4 is the structural representation of gesture drive mechanism of the present utility model.
Fig. 5 is the generalized section in the horizontal drive shaft portion of the utility model horizontal level driving mechanism.
Fig. 6 is the ball-screw connection diagram of the utility model vertical position driving mechanism.
Fig. 7 is the mounting structure figure of base of the present utility model and base upper cover.
In figure, Reference numeral is: 1: motor cabinet, 2: rotate master arm, 3: connecting rod, 4: vertical motion drive motors, 5: end effector mechanism microscope carrier, 6: translation bar, 7: transition link, 8: the first horizontal movement master arms, 9: the second horizontal movement master arms, 10: motor base upper cover, 11: the second horizontal movement drive motors, 12: the first horizontal movement drive motors, 13: bearing, 14: translation drive shaft shaft-cup, 15: the second horizontal movement gear wheels, 16: the first horizontal movement gear wheels, 17: motor base, 18: leading screw bearing, 19: bearing outer ring end cap, 20: the large belt wheel of leading screw, 21: driving-belt, 22: leading screw small pulley, 23: ball-screw, 24: optical axis guide pillar, 25: spline bearing, 26: splined nut, 27: nut, 28: moving platform, 29: flange, 30: bearing (ball) cover, 31: driving shaft shaft-cup, 32: axle sleeve, 33: rotational motion drive motors, 34: sleeve, 35: translation drive shaft, 36: hollow shaft, 37: ball-screw nut, 38: lead screw shaft bearing sleeve, 39: bearing outer ring support set, 40: screw pulley adpting flange, 41: belt wheel back-up ring, 42: spline bearing outer ring end cap, 43: splined shaft bearing sleeve, 44: base, 45: base upper cover.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in the figure, a kind of four-degree-of-freedom high speed carrying robot mechanism, comprises horizontal level driving mechanism, vertical position driving mechanism, gesture drive mechanism, end effector mechanism;
Horizontal level driving mechanism includes motor base 1, first horizontal movement drive motors 12, second horizontal movement drive motors 11, translation bar 6, motor base 1 is provided with motor base upper cover 10, motor base 1 is provided with hollow shaft 36, translation drive shaft 35, translation drive shaft 35, hollow shaft 36 has been fixedly connected the first horizontal movement master arm 8, second horizontal movement master arm 9, first horizontal movement master arm 8, second horizontal movement master arm 9 other end has translation bar 6 respectively by bearing hinge connection, transition link 7, transition link 7 other end by bearing hinge connection in the middle part of translation bar 6, translation bar 6 other end by bearing hinge connection on end effector mechanism microscope carrier 5, translation drive shaft 35, hollow shaft 36 is installed with the first horizontal movement gear wheel 16, second horizontal movement gear wheel 15, first horizontal movement drive motors 12, second horizontal movement drive motors 11 is connected to and the first horizontal movement gear wheel 16, the pinion that second horizontal movement gear wheel 15 is meshed,
Vertical position driving mechanism includes vertical motion drive motors 4, motor base, end effector mechanism microscope carrier 5, ball-screw 23 is by leading screw bearing 18, lead screw shaft bearing sleeve 38, bearing outer ring support set 39 is installed on end effector mechanism microscope carrier 5, ball-screw 23 is combined with the ball screw nut 37 be fixed in end effector mechanism microscope carrier 5, the large belt wheel 20 of screw mandrel is fixed on end effector mechanism microscope carrier 5 by screw pulley adpting flange 40, vertical motion drive motors 4 is connected with the screw mandrel small pulley 22 that large belt wheel 20 is in transmission connection with screw mandrel, by splined nut 26 in end effector mechanism microscope carrier 5, splined shaft bearing sleeve 43 is provided with spline bearing 25, spline bearing 25 internal spline is combined with the optical axis guide pillar 24 be arranged in parallel with ball-screw 23, optical axis guide pillar 24 lower end is by being installed with moving platform 28, flange 29, ball-screw 23 lower end is fixedly installed in moving platform 28,
Described gesture drive mechanism includes motor cabinet 1, rotational motion drive motors 33, rotates master arm 2, rotate master arm 2 end and be hinged with connecting rod 3, connecting rod 3 other end is articulated with on end effector mechanism microscope carrier 5, rotate master arm 2 and connecting rod 3, connecting rod 3 and end effector mechanism microscope carrier 5 respectively by bearing 30,33 hinged, the output shaft end of rotational motion drive motors 33 is provided with driving shaft shaft-cup 31, thus realizes the rotation of end effector mechanism.
Translation drive shaft 35 between first horizontal movement master arm 8 and the second horizontal movement master arm 9 is set with sleeve 34, and translation drive shaft 35 upper surface is provided with translation drive shaft shaft-cup 14.Be provided with belt wheel back-up ring 41 below the large belt wheel 20 of screw mandrel, between the large belt wheel 20 of screw mandrel and screw mandrel small pulley 22, be set with driving-belt 21.
As shown in Figure 1, Figure 2, Figure 5, the structure of described horizontal level driving mechanism is: described translation drive shaft 35 one end is connected with key with two bearings 13, and the other end is connected with the first described horizontal movement master arm 8 and fixes its position with locking nut; The first described horizontal movement gear wheel 16 is connected by key with described translation drive shaft 35, the first described horizontal movement gear wheel 16 is connected by key with the first described horizontal movement drive motors 12, thus the Plane Rotation of the first horizontal movement master arm 8 described in driving; The second described horizontal movement gear wheel 15 is connected by two bearings 13 with described translation drive shaft 35, and the second described horizontal movement gear wheel 15 is connected by key with the second described horizontal movement drive motors 11; Described hollow shaft 36 is connected by key with the second described horizontal movement gear wheel 15; The second described horizontal movement master arm 9 is connected by key with described hollow shaft 36, thus the Plane Rotation of the second horizontal movement master arm 9 described in driving; Described sleeve 34 is between the first described horizontal movement master arm 8 and the second described horizontal movement master arm 9, be connected by described bearing 13 with the first described horizontal movement master arm 8, be connected with the second described horizontal movement master arm 9 interference, and be arranged in described translation drive shaft 35 by described bearing 13; The first described horizontal movement drive motors 12 and the second described horizontal movement drive motors 11 are arranged on described motor base 17; All be connected by described bearing 13 between the first described horizontal movement master arm 8 and described translation bar 6 one end, between described transition link 7 and described translation bar 6 middle-end, between described translation bar 6 other end and the microscope carrier 5 of described end effector mechanism, between the second described horizontal movement master arm 9 and described transition link 7; The first described horizontal movement master arm 8, second horizontal movement master arm 9, transition link 7, translation bar 6 form a parallelogram sturcutre, thus drive the plane motion of translation bar 6.The first described horizontal movement drive motors 12 and the second described horizontal movement drive motors 11 all adopt AC servo drive system; The type of described bearing 13 is identical.
As shown in Fig. 1, Fig. 3, Fig. 6, described vertical position driving mechanism is connected with described end effector mechanism, as Fig. 3; Described vertical position driving mechanism and the structure of described end effector mechanism are: described vertical motion drive motors 4 to be arranged on described motor base 17 and to be fixed on described end effector mechanism microscope carrier 5 with holding screw; The large belt wheel of described leading screw 20 is connected with belt wheel back-up ring 41 and is connected with described lead screw shaft bearing sleeve 38 by described screw pulley adpting flange 40, and fix with described ball-screw nut 37, match lead screw shaft bearing outer-ring support set 39 described in merga pass and lead screw shaft bearing outer-ring end cap 19 of described lead screw shaft bearing sleeve 38 and described leading screw bearing 18 is fixed in described end effector mechanism microscope carrier 5; Described ball-screw 23 matches with described ball-screw nut 37; Described leading screw small pulley 22 is engaged on the motor shaft in described vertical motion drive motors 4 by key; The large belt wheel of described leading screw 20 and described leading screw small pulley 22 transmit power by described driving-belt 21; Described optical axis guide pillar 24 is matched in clearance with described splined shaft bearing sleeve 43, and is fixed in described end effector mechanism microscope carrier 5 by described spline bearing 25 and described splined shaft socket end outer ring lid 42; Described ball-screw 23 lower end is cemented in described moving platform 28; Described optical axis guide pillar 24 bottom and described moving platform 28 are fixed by described nut about 27; Described flange 29 is cemented in optical axis guide pillar 24 lower end; Thus the optical axis guide pillar 24 described in realizing drives moving up and down of described flange 29; All be connected by described bearing 13 between one end of described end effector mechanism microscope carrier 5 and described translation bar 6, between the other end of described end effector mechanism microscope carrier 5 and described connecting rod 3; Described vertical motion drive motors 4 adopts AC servo drive system; The type of described bearing 13 is identical.
As Figure 1 and Figure 4, the structure of described gesture drive mechanism is: described rotational motion drive motors 33 is arranged in described motor cabinet 1; Described rotation master arm 2 is engaged on the motor shaft in described rotational motion drive motors 33 by key; Described rotation master arm 2 is connected by described bearing 13 with described connecting rod 3; Described connecting rod 3 is connected by bearing 13 with one end of described end effector mechanism microscope carrier 5; Thus realize the rotation of end effector mechanism; Described rotational motion drive motors adopts AC servo drive system; Described bearing 13 type is identical.
As shown in Figure 1, Figure 7 shows, described frame is made up of base 44 and base upper cover 45 or is made up of motor base 17 and motor base upper cover 10; The structure of described frame is: described base upper cover 45 is affixed with described base 45; Motor base 17 described on described horizontal level driving mechanism and described gesture drive mechanism is fixed in described machine frame inside, and motor base 17 described on described vertical position driving mechanism is fixed on described end effector mechanism microscope carrier 5; Described bay form can be different as Fig. 7.
The first described horizontal movement master arm, the second horizontal movement master arm, ball-screw, rotation master arm provide power by respective drive unit, the plane motion of the end effector mechanism shown in realization, vertical motion and rotational motion.

Claims (3)

1. a four-degree-of-freedom high speed carrying robot mechanism, is characterized in that, comprises horizontal level driving mechanism, vertical position driving mechanism, gesture drive mechanism, end effector mechanism;
Described horizontal level driving mechanism includes motor base, first horizontal movement drive motors, second horizontal movement drive motors, translation bar, motor base is provided with motor base upper cover, motor base is provided with hollow shaft, translation drive shaft, translation drive shaft, hollow shaft has been fixedly connected the first horizontal movement master arm, second horizontal movement master arm, first horizontal movement master arm, the second horizontal movement master arm other end has translation bar respectively by bearing hinge connection, transition link, the transition link other end by bearing hinge connection in the middle part of translation bar, the translation bar other end by bearing hinge connection on end effector mechanism microscope carrier, translation drive shaft, hollow shaft is installed with the first horizontal movement gear wheel, second horizontal movement gear wheel, first horizontal movement drive motors, second horizontal movement drive motors is connected to and the first horizontal movement gear wheel, the pinion that second horizontal movement gear wheel is meshed,
Described vertical position driving mechanism includes vertical motion drive motors, motor base, end effector mechanism microscope carrier, ball-screw is by leading screw bearing, lead screw shaft bearing sleeve, bearing outer ring support set is installed on end effector mechanism microscope carrier, ball-screw is combined with the ball screw nut be fixed in end effector mechanism microscope carrier, the large belt wheel of screw mandrel is fixed on end effector mechanism microscope carrier by screw pulley adpting flange, vertical motion drive motors is connected with the screw mandrel small pulley that belt wheel transmission large with screw mandrel is connected, splined nut is passed through in end effector mechanism microscope carrier, splined shaft bearing sleeve is provided with spline bearing, spline bearing internal spline is combined with the optical axis guide pillar be arranged in parallel with ball-screw, optical axis guide pillar lower end is by being installed with moving platform, flange, ball-screw lower end is fixedly installed in moving platform,
Described gesture drive mechanism includes motor cabinet, rotational motion drive motors, rotates master arm, rotate master arm end and be hinged with connecting rod, the connecting rod other end is articulated with on end effector mechanism microscope carrier, rotation master arm and connecting rod, connecting rod and end effector mechanism microscope carrier respectively by bearing hinge connection, thus realize the rotation of end effector mechanism.
2. four-degree-of-freedom high speed carrying robot mechanism according to claim 1, it is characterized in that, translation drive shaft between the first described horizontal movement master arm and the second horizontal movement master arm is set with sleeve, and translation drive shaft upper surface is provided with translation drive shaft shaft-cup.
3. four-degree-of-freedom high speed carrying robot mechanism according to claim 1, is characterized in that, is provided with belt wheel back-up ring below the large belt wheel of described screw mandrel, is set with driving-belt between the large belt wheel of screw mandrel and screw mandrel small pulley.
CN201520223558.6U 2015-04-14 2015-04-14 A kind of four-degree-of-freedom high speed carrying robot mechanism Active CN204566133U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104827466A (en) * 2015-04-14 2015-08-12 马鞍山鼎泰稀土新材料股份有限公司 Four-freedom-degree high-speed conveying robot mechanism
CN105798905A (en) * 2016-05-12 2016-07-27 安徽六联智能科技有限公司 Six-axis intelligent carrying mechanical hand for stamping
CN111664233A (en) * 2019-03-08 2020-09-15 中国科学院长春光学精密机械与物理研究所 Five-connecting-rod spoke mechanism with variable degree of freedom

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104827466A (en) * 2015-04-14 2015-08-12 马鞍山鼎泰稀土新材料股份有限公司 Four-freedom-degree high-speed conveying robot mechanism
CN105798905A (en) * 2016-05-12 2016-07-27 安徽六联智能科技有限公司 Six-axis intelligent carrying mechanical hand for stamping
CN111664233A (en) * 2019-03-08 2020-09-15 中国科学院长春光学精密机械与物理研究所 Five-connecting-rod spoke mechanism with variable degree of freedom

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170527

Address after: 243100 Economic Development Zone in Anhui city of Ma'anshan province Dangtu County Silver Yellow Road

Patentee after: Ma'anshan Shun Tai rare earth new material Co., Ltd.

Address before: 243100 Anhui city of Ma'anshan province Dangtu Industrial Park West Silver Yellow

Patentee before: Maanshan Dingtai Rare Earth& New Materials Co., Ltd.