CN201743779U - Twin-worm-based bipolar-coordinate 4-DOF parallel robot - Google Patents
Twin-worm-based bipolar-coordinate 4-DOF parallel robot Download PDFInfo
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- CN201743779U CN201743779U CN2010205128831U CN201020512883U CN201743779U CN 201743779 U CN201743779 U CN 201743779U CN 2010205128831 U CN2010205128831 U CN 2010205128831U CN 201020512883 U CN201020512883 U CN 201020512883U CN 201743779 U CN201743779 U CN 201743779U
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Abstract
The utility model discloses a twin-worm-based bipolar-coordinate 4-DOF (degree of freedom) parallel robot comprising an upper screw mechanism, a lower screw mechanism, a puncture needle mechanism, a twin-worm transmission mechanism, a main connecting board, and a fixing frame and a supporting frame for a parallel-connection platform, wherein one end of the fixing frame for the parallel-connection platform is fixed on the main connecting board via a three-claw structure, and the other end thereof is connected with the supporting frame via a threaded connector; the twin-worm transmission mechanism is located on one side of the main connecting board and connected with the main connecting board; the upper screw mechanism and lower screw mechanism which are symmetric about the center of the main connecting board are respectively connected with the twin-worm transmission mechanism, thus forming two rotational DOFs; and meanwhile, the puncture needle mechanism is arranged on the upper screw mechanism and lower screw mechanism, thus forming two shifting MOFs. Accordingly, the twin-worm-based bipolar-coordinate 4-DOF parallel robot of the utility model has the advantages of simple and compact structure, light weight, low joint clearance, good rigidity, large operating space and high flexibility. Therefore, the twin-worm-based bipolar-coordinate 4-DOF parallel robot is applicable to the automatic location of manipulators in neurosurgery, orthopedic surgery, prostate surgery and other minimally invasive surgeries.
Description
Technical field
This utility model relates to a kind of bipolar coordinate four-freedom parallel device people based on twin worm, belongs to micro-wound surgical operation puncture needle spatial pose digitized automatic positioning equipment.
Background technology
At present, for surgical operation, the development of medical robot technology and application have obtained the high praise of various countries, the technology that it is relevant etc. has also obtained develop rapidly, rapid raising along with China's economic strength and whole people's health care consciousness, with raising location of operation precision and facilitating operation degree and the efficient of performing the operation is the minimally invasive surgery robot Study on Technology of aim, become one of topmost forward position research focus in the China and even the whole world, and China present surgical operation puncture positioning robot rests on development basically, and the surgical operation parallel robot of research and development has following characteristics.One, topological structure is continued to use the mentality of designing of industrial robot, makes up robot system with traditional moving platform and silent flatform, and this kind mechanism overall dimensions is big, and heavy, doctor's inconvenient operation; Two, the same with traditional parallel robot, this parallel robot work space is little, operation attitude scope is little, very flexible, the requirement of this and microtrauma puncture positioning operation robot (as the neurosurgery robot) is disagreed, therefore this robot is difficult to move towards clinical practice from laboratory, that is to say, the at present still untapped micro-wound surgical operation parallel robot mechanism that goes out the small volume and less weight high flexibility, exploitation is towards the four-freedom parallel device people of micro-wound surgical operation, not only can establish the research basis, simultaneously, also can design and develop reference is provided for the robot of other operative indication for the robot mechanism of the positioning operation that initiatively punctures.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of bipolar coordinate four-freedom parallel device people based on twin worm, the manual positioning of surgical operation puncturing pin is become full-automatic digitized location, promptly become the automatic location of robot
In addition, the purpose of this utility model also is to make this utility model not only to can be used as the automedica operating theater instruments, can also handle and the location by supporting binocular stereo vision location, medical science 2 peacekeeping 3 d images, and the resolving of robot kinematics, the puncture path of image space doctor planning is mapped to the robot space automatically, thereby realize the locus of operation puncturing pin vector and the accurate location of attitude, in addition can be simultaneously as surgical operation puncture localized medical equipment and stable operation support platform.
This utility model is achieved through the following technical solutions:
A kind of bipolar coordinate four-freedom parallel device people based on twin worm, it is characterized in that: comprise screw mechanism, following screw mechanism, puncture needle mechanism, the twin worm drive mechanism, main connecting plate, parallel connection platform fixed mount and bracing frame, wherein, parallel connection platform fixed mount one end is provided with the three-jaw structure, its three-jaw structure is fixed on the main connecting plate by trip bolt, the parallel connection platform fixed mount other end also is provided with hickey, it is connected with bracing frame by hickey, and the twin worm drive mechanism is positioned at main connecting plate one side and be connected with main connecting plate, last screw mechanism and following screw mechanism are symmetricly set in the both sides at main connecting plate center respectively, and be connected with the twin worm drive mechanism respectively, form two rotational freedoms, puncture needle mechanism then is arranged on screw mechanism and the following screw mechanism simultaneously, forms two one-movement-freedom-degrees.
Above-mentioned twin worm drive mechanism comprises the twin worm motor cabinet, the shaft coupling supporting seat, the worm screw seat, direct current generator A, direct current generator B, shaft coupling A, shaft coupling B, worm screw A, worm screw B, turbine A, turbine B, turbine wheel shaft bearing A and turbine wheel shaft bearing B, wherein, the twin worm motor cabinet, shaft coupling supporting seat and worm screw seat are fixed on the main connecting plate by screw, direct current generator A and direct current generator B secured in parallel are on the twin worm motor cabinet, its output shaft is connected with shaft coupling B with the shaft coupling A that the shaft coupling supporting seat supports respectively, the other end of shaft coupling A and shaft coupling B also is connected with worm screw A and worm screw B respectively, worm screw A is parallel with the axis of worm screw B, it is supported on the worm screw seat, and cooperate with two bearings in the worm screw seat, turbine A and turbine B then are supported on respectively on turbine wheel shaft bearing A and the turbine wheel shaft bearing B, and the turning cylinder of turbine A and turbine B is on a centrage, and above-mentioned worm screw A cooperatively interacts with turbine B with turbine A respectively with worm screw B and is connected.
Above-mentioned last screw mechanism comprises the leading screw bearing cover, last lead screw shaft bearing, last leading screw guide housing, last ball-screw, last feed screw nut, last spindle motor seat, last leading screw shaft coupling and last leading screw direct current generator, wherein, last spindle motor seat is fixedlyed connected with the main shaft interference fit of above-mentioned turbine A respectively, last leading screw direct current generator is connected the side of spindle motor seat by screw, its output shaft and the locking of last leading screw shaft coupling one end, the other end of last leading screw shaft coupling is connected with the end of last ball-screw of bearing block on passing the spindle motor seat, last ball-screw and the coaxial setting of the output shaft of last spindle motor seat, and its other end is spacing and support by last lead screw shaft bearing, last leading screw bearing cover is arranged on the end of lead screw shaft bearing, last leading screw guide housing then is arranged between lead screw shaft bearing and the last spindle motor seat, and be enclosed within the outside of ball-screw, and with last ball-screw the axle concentric setting, last leading screw guide housing middle part, its side also have along on the gathering sill A of ball-screw axis direction, last feed screw nut is enclosed within on the ball-screw and is spacing in gathering sill A.
Further, the top of leading screw guide housing also is provided with the vision localization template on above-mentioned.
Above-mentioned following screw mechanism comprises leading screw bearing cover down, following lead screw shaft bearing, following leading screw guide housing, following ball-screw, following feed screw nut, following spindle motor seat, following leading screw shaft coupling and following leading screw direct current generator, wherein, following spindle motor seat is fixedlyed connected with the main shaft interference fit of above-mentioned turbine B respectively, following leading screw direct current generator is connected down the side of spindle motor seat by screw, its output shaft and following leading screw shaft coupling one end locking, the other end of following leading screw shaft coupling is connected with the end of following ball-screw of bearing block on passing down the spindle motor seat, following ball-screw and the coaxial setting of the output shaft of following spindle motor seat, and its other end is by the spacing and support of lead screw shaft bearing down, following leading screw bearing cover is arranged on down the end of lead screw shaft bearing, following leading screw guide housing then is arranged on down between lead screw shaft bearing and the following spindle motor seat, and the outside of cover infra ball-screw, and with following ball-screw the axle concentric setting, following leading screw guide housing middle part, its side also have along under the gathering sill B of ball-screw axis direction, on the following screw nut sleeve infra ball-screw and spacing in gathering sill B.
In addition, described puncture needle mechanism comprises puncture needle, puncture needle fixed mechanism A and puncture needle fixed mechanism B, puncture needle fixed mechanism A and puncture needle fixed mechanism B are separately positioned on screw mechanism and the following screw mechanism, and puncture needle then is fixed on puncture needle fixed mechanism A and the puncture needle fixed mechanism B simultaneously.
Further, described puncture needle fixed mechanism A comprises fairlead U-shaped locating ring A, fairlead cylindricality locating ring A, location battle pin A and puncture needle fairlead A, fairlead U-shaped locating ring A is connected by sliding bearing with above-mentioned last feed screw nut, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of last ball-screw, fairlead cylindricality locating ring A is connected the opening of fairlead U-shaped locating ring A by the location battle pin A of its both sides, its inside also is provided with puncture needle fairlead A with one heart, and puncture needle then is located in the puncture needle fairlead A.
Further, described puncture needle fixed mechanism B comprises fairlead U-shaped locating ring B, fairlead cylindricality locating ring B, location battle pin B and puncture needle fairlead B, fairlead U-shaped locating ring B is connected by sliding bearing with above-mentioned following feed screw nut, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of following ball-screw, fairlead cylindricality locating ring B is connected the opening of fairlead U-shaped locating ring B by the location battle pin B of its both sides, its inside also is provided with puncture needle fairlead B with one heart, and puncture needle then is located in the puncture needle fairlead B.
And the axis of the axis of puncture needle fairlead A, location battle pin A and the axis of fairlead U-shaped locating ring A meet at a bit, form ball pivot A, and the axis of puncture needle fairlead B, the axis of location battle pin B and the axis of fairlead U-shaped locating ring B meet at some formation ball pivot B.
The beneficial effects of the utility model are:
1, simple in structure: described in the utility model upward screw mechanism is consistent with following screw mechanism structure, make that design, manufacturing are all very convenient and cost is lower, and this utility model adopts the bipolar coordinate topological structure, has realized the rotation around fixed axis of the translation of last screw mechanism and following screw mechanism spatial point and spatial point;
2, the robot kinematics resolves conveniently: the bipolar coordinate structure that this utility model adopts, its kinematic calculation gets final product based on method of geometry, need not set up mathematical model, need not to carry out complicated matrixing yet, thereby greatly reduce the difficulty of resolving and programme according to traditional D-H method;
3, work space is bigger: this utility model is an Open architecture, the abstract puncture needle of its moving platform for doctor's operation, it can break away from parallel connection platform, and rotary joint can move in ± 90 °, compare with the parallel robot of identical appearance size, its work space obviously increases;
4, motility is higher: this utility model puncture needle vector space attitude showed increased, and range of motion increases, and promptly moving platform attitude scope increases, and compares with general parallel robot, and its motility significantly improves, and has improved doctor's operation efficient;
5, light firm: four-freedom parallel device people's described in the utility model material of main part adopts high-strength engineering plastic, in light weight, good rigidly;
6, positioning accuracy is higher: joint of the present utility model does not have cumulative errors, the positioning accuracy height;
7, compact conformation: when this utility model adopts the bipolar coordinate topological structure, two turbine and worm drive mechanisms have been adopted, make little, in light weight, the compact conformation of this four-freedom parallel device people volume, promptly can be used for designing the micro-wound surgical operation parallel robot mechanism, also can be applied to other digital medical Design of device.
Description of drawings
Fig. 1 is the perspective view of this utility model one embodiment;
Fig. 2 is the front view of this utility model one embodiment;
Fig. 3 is the left view of this utility model one embodiment;
Fig. 4 is the vertical view of this utility model one embodiment.
Main Reference numeral implication is among the figure:
1, main connecting plate 2, parallel connection platform fixed mount 3, twin worm motor cabinet
4, shaft coupling supporting seat 5, worm screw seat 6, direct current generator A
7, direct current generator B 8, shaft coupling A 9, shaft coupling B
10, worm screw A 11, worm screw B 12, turbine A
13, turbine B 14, turbine wheel shaft bearing A 15, turbine wheel shaft bearing B
16, last leading screw bearing cover 17, last lead screw shaft bearing
18, last leading screw guide housing 19, last ball-screw 20, last feed screw nut
21, last spindle motor seat 22, last leading screw shaft coupling 23, last leading screw direct current generator
24, following leading screw bearing cover 25, following lead screw shaft bearing 26, following leading screw guide housing
27, following ball-screw 28, following feed screw nut 29, following spindle motor seat
30, following leading screw shaft coupling 31, following leading screw direct current generator 32, puncture needle
33, fairlead U-shaped locating ring A 34, fairlead cylindricality locating ring A
35, location battle pin A 36, puncture needle fairlead A 37, fairlead U-shaped locating ring B
38, fairlead cylindricality locating ring B 39, location battle pin B
40, puncture needle fairlead B 41, vision localization template
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present utility model in detail:
Fig. 1 is the perspective view of this utility model one embodiment; Fig. 2 is the front view of this utility model one embodiment; Fig. 3 is the left view of this utility model one embodiment; Fig. 4 is the vertical view of this utility model one embodiment.
As shown in Figures 1 to 4: based on the bipolar coordinate four-freedom parallel device people of twin worm, comprise screw mechanism, following screw mechanism, puncture needle mechanism, the twin worm drive mechanism, main connecting plate 1, parallel connection platform fixed mount 2 and bracing frame (in this utility model, not setting forth), wherein, main connecting plate 1 is as the part of the silent flatform of parallel connection platform, be basic components of the present utility model, the three-jaw structure of parallel connection platform fixed mount 2 one end settings is rigidly connected by three screws and main connecting plate 1, parallel connection platform fixed mount 2 other ends also are provided with hickey, it is connected with bracing frame by hickey, the twin worm drive mechanism then is positioned at main connecting plate 1 one sides and is connected with main connecting plate 1, last screw mechanism and following screw mechanism are symmetricly set in the both sides at main connecting plate 1 center respectively, and be connected with the twin worm drive mechanism respectively, form two rotational freedoms, puncture needle mechanism then is arranged on screw mechanism and the following screw mechanism simultaneously, forms two one-movement-freedom-degrees.
Above-mentioned twin worm drive mechanism comprises twin worm motor cabinet 3, shaft coupling supporting seat 4, worm screw seat 5, direct current generator A6, direct current generator B7, shaft coupling A8, shaft coupling B9, worm screw A10, worm screw B11, turbine A12, turbine B13, turbine wheel shaft bearing A14 and turbine wheel shaft bearing B15, wherein, twin worm motor cabinet 3, shaft coupling supporting seat 4 and worm screw seat 5 are fixed on the main connecting plate 1 by screw, direct current generator A6 and direct current generator B7 secured in parallel are on twin worm motor cabinet 3, its output shaft is connected with shaft coupling B9 with the shaft coupling A8 that shaft coupling supporting seat 4 supports respectively, the other end of shaft coupling A8 and shaft coupling B9 also is connected with worm screw A10 and worm screw B11 respectively, worm screw A10 is parallel with the axis of worm screw B11, it is supported on the worm screw seat 5, and cooperate with two bearings in the worm screw seat 5, turbine A12 and turbine B13 then are supported on respectively on turbine wheel shaft bearing A14 and the turbine wheel shaft bearing B15, and the turning cylinder of turbine A12 and turbine B13 is on a centrage, and above-mentioned worm screw A10 cooperatively interacts with turbine B13 with turbine A12 respectively with worm screw B11 and is connected.
Above-mentioned last screw mechanism comprises leading screw bearing cover 16, last lead screw shaft bearing 17, last leading screw guide housing 18, last ball-screw 19, last feed screw nut 20, last spindle motor seat 21, last leading screw shaft coupling 22 and last leading screw direct current generator 23, wherein, last spindle motor seat 21 is fixedlyed connected with the main shaft interference fit of above-mentioned turbine A12 respectively, screw mechanism integral body is around the turning cylinder rotation of wheel A12 in the realization, form a rotational freedom, last leading screw direct current generator 23 is connected the side of spindle motor seat 21 by screw, its output shaft and the locking of last leading screw shaft coupling 22 1 ends, the other end of last leading screw shaft coupling 22 is connected with the end of last ball-screw 19 of bearing block on passing spindle motor seat 21, last ball-screw 19 and the coaxial setting of the output shaft of last spindle motor seat 21, and its other end is by last lead screw shaft bearing 17 spacing and supports, last leading screw bearing cover 16 is arranged on the end of lead screw shaft bearing 17, last leading screw guide housing 18 then is arranged between lead screw shaft bearing 17 and the last spindle motor seat 21, and be enclosed within the outside of ball-screw 19, and with last ball-screw 19 the axle concentric setting, last leading screw guide housing 18 also has the gathering sill A of ball-screw 19 axis directions on the edge at its middle part, side, last feed screw nut 20 is enclosed within on the ball-screw 19 and is spacing in gathering sill A, the last feed screw nut 20 of promptly going up ball-screw 19 can move along the axis direction of last ball-screw 19, but must be limited in the gathering sill A scope.
And the structure of the structure of following screw mechanism and last screw mechanism is identical, it also comprises leading screw bearing cover 24 down, following lead screw shaft bearing 25, following leading screw guide housing 26, following ball-screw 27, following feed screw nut 28, following spindle motor seat 29, following leading screw shaft coupling 30 and following leading screw direct current generator 31, wherein, following spindle motor seat 29 is fixedlyed connected with the main shaft interference fit of above-mentioned turbine B13 respectively, realize that screw mechanism integral body is around the turning cylinder rotation of turbine B13 down, form another rotational freedom, following leading screw direct current generator 31 is connected down the side of spindle motor seat 29 by screw, its output shaft and following leading screw shaft coupling 30 1 ends locking, the other end of following leading screw shaft coupling 30 is connected with the end of following ball-screw 27 of bearing block on passing down spindle motor seat 29, following ball-screw 27 and the coaxial setting of the output shaft of following spindle motor seat 29, and its other end is by lead screw shaft bearing 25 spacing and supports down, following leading screw bearing cover 24 is arranged on down the end of lead screw shaft bearing 25, following leading screw guide housing 26 then is arranged on down between lead screw shaft bearing 25 and the following spindle motor seat 29, and the outside of cover infra ball-screw 27, and with following ball-screw 27 the axle concentric setting, following leading screw guide housing 26 also has the gathering sill B of ball-screw 27 axis directions under the edge at its middle part, side, on the following feed screw nut 28 cover infra ball-screws 27 and spacing in gathering sill B, promptly descend the following feed screw nut 28 of ball-screw 27 to move, but must be limited in the gathering sill B scope along the axis direction of following ball-screw 27.
Unique different being of last screw mechanism and following screw mechanism: leading screw guide housing top also is provided with vision localization template 41 on last screw mechanism, carries out track and localization with the position to the puncture needle discussed below.
In addition, puncture needle mechanism comprises puncture needle 32, puncture needle fixed mechanism A and puncture needle fixed mechanism B, puncture needle fixed mechanism A and puncture needle fixed mechanism B are separately positioned on screw mechanism and the following screw mechanism, and puncture needle 32 then is fixed on puncture needle fixed mechanism A and the puncture needle fixed mechanism B simultaneously.
Further, puncture needle fixed mechanism A comprises fairlead U-shaped locating ring A33, fairlead cylindricality locating ring A34, location battle pin A35 and puncture needle fairlead A36, fairlead U-shaped locating ring A33 and above-mentioned last feed screw nut 20 are connected by sliding bearing, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of last ball-screw 19, fairlead cylindricality locating ring A34 is connected the opening of fairlead U-shaped locating ring A33 by the location battle pin A35 of its both sides, fairlead cylindricality locating ring A34 can be around location battle pin A35 rotation, its inside also is provided with puncture needle fairlead A36 with one heart, and puncture needle 32 then is located in the puncture needle fairlead A36.
And puncture needle fixed mechanism B also comprises fairlead U-shaped locating ring B37, fairlead cylindricality locating ring B38, location battle pin B39 and puncture needle fairlead B40, fairlead U-shaped locating ring B37 and above-mentioned following feed screw nut 28 are connected by sliding bearing, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of following ball-screw 27, fairlead cylindricality locating ring B38 is connected the opening of fairlead U-shaped locating ring B37 by the location battle pin B39 of its both sides, fairlead cylindricality locating ring B38 can be around location battle pin A39 rotation, its inside also is provided with puncture needle fairlead B40 with one heart, and puncture needle 32 then is located in the puncture needle fairlead B40.
The axis of the axis of above-mentioned puncture needle fairlead A36, location battle pin A35 and the axis of fairlead U-shaped locating ring 33 meet at a bit, form ball pivot A, and the axis of puncture needle fairlead B40, the axis of location battle pin B39 and the axis of fairlead U-shaped locating ring B37 meet at a bit, form ball pivot B.
Operation principle of the present utility model is: the utlity model has 4 degree of freedom, wherein 2 is one-movement-freedom-degree, 2 for forwarding degree of freedom to, last screw mechanism integral body is under direct current generator A6 drives, can be around the main axis rotation of turbine A12, same, following screw mechanism integral body is under direct current generator B7 drives, can be around the main axis rotation of turbine B13, and these 2 rotary joints can move in ± 90 °.Last feed screw nut 20 and following feed screw nut 28 are respectively under the driving of last leading screw direct current generator 23 and following leading screw direct current generator 31, do translational motion along last ball-screw 19 and following ball-screw 27 respectively, drive puncture needle fairlead A36 and puncture needle fairlead B40 and do translational motion together, therefore, last screw mechanism can be done translation and rotatablely move, following screw mechanism also can be done translation and rotatablely move, and forms two polar coordinate up and down.
Before the operation, patient's affected areas is carried out CT/MRI medical image tomoscan, extract the gauge point position, set up image coordinate system by Flame Image Process.During operation, binocular stereo vision system keeps track vision localization template 41 is set up robot base's coordinate system through mathematical tool again, and the binocular tri-dimensional vision system is followed the tracks of the gauge point of patient's body surface again, sets up external gauge point coordinate system.Through a series of spaces rigid body translation process, make the doctor be mapped to robot base's coordinate space like this in the operation puncturing path of image space planning.Separate by the robot kinematics is counter, calculate each joint motions value, direct current generator A6, direct current generator B7, last leading screw direct current generator 23 and following leading screw direct current generator 31 drive each joint respectively to assigned address.When finished the location, the puncture needle fairlead A36 and the puncture needle fairlead B40 of screw mechanism and following screw mechanism promptly formed space vector in the connection, thereby realized the locus of operation puncturing pin and the location of attitude.
Above specific embodiment is set forth embodiment of the present utility model; this elaboration does not have limitation; shown in the accompanying drawing also is basic embodiment of the present utility model; practical structure is not limited thereto; so; if those skilled in the art or research worker are enlightened by it; under the situation that does not break away from this utility model creation aim; adopt other similar topological structure; other similar drive mechanism; perhaps just change the rod member size; design the version similar without creationary, all should belong to protection domain of the present utility model to this technical scheme.
Claims (10)
1. bipolar coordinate four-freedom parallel device people based on twin worm, it is characterized in that: comprise screw mechanism, following screw mechanism, puncture needle mechanism, the twin worm drive mechanism, main connecting plate, parallel connection platform fixed mount and bracing frame, wherein, parallel connection platform fixed mount one end is provided with the three-jaw structure, its three-jaw structure is fixed on the main connecting plate by trip bolt, the parallel connection platform fixed mount other end also is provided with hickey, it is connected with bracing frame by hickey, and the twin worm drive mechanism is positioned at main connecting plate one side and be connected with main connecting plate, last screw mechanism and following screw mechanism are symmetricly set in the both sides at main connecting plate center respectively, and be connected with the twin worm drive mechanism respectively, form two rotational freedoms, puncture needle mechanism then is arranged on screw mechanism and the following screw mechanism simultaneously, forms two one-movement-freedom-degrees.
2. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 1, it is characterized in that, described twin worm drive mechanism comprises the twin worm motor cabinet, the shaft coupling supporting seat, the worm screw seat, direct current generator A, direct current generator B, shaft coupling A, shaft coupling B, worm screw A, worm screw B, turbine A, turbine B, turbine wheel shaft bearing A and turbine wheel shaft bearing B, wherein, the twin worm motor cabinet, shaft coupling supporting seat and worm screw seat are fixed on the main connecting plate by screw, direct current generator A and direct current generator B secured in parallel are on the twin worm motor cabinet, its output shaft is connected with shaft coupling B with the shaft coupling A that the shaft coupling supporting seat supports respectively, the other end of shaft coupling A and shaft coupling B also is connected with worm screw A and worm screw B respectively, worm screw A is parallel with the axis of worm screw B, it is supported on the worm screw seat, and cooperate with two bearings in the worm screw seat, turbine A and turbine B then are supported on respectively on turbine wheel shaft bearing A and the turbine wheel shaft bearing B, and the turning cylinder of turbine A and turbine B is on a centrage, and above-mentioned worm screw A cooperatively interacts with turbine B with turbine A respectively with worm screw B and is connected.
3. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 1, it is characterized in that, the described screw mechanism of going up comprises the leading screw bearing cover, last lead screw shaft bearing, last leading screw guide housing, last ball-screw, last feed screw nut, last spindle motor seat, last leading screw shaft coupling and last leading screw direct current generator, wherein, last spindle motor seat is fixedlyed connected with the main shaft interference fit of above-mentioned turbine A respectively, last leading screw direct current generator is connected the side of spindle motor seat by screw, its output shaft and the locking of last leading screw shaft coupling one end, the other end of last leading screw shaft coupling is connected with the end of last ball-screw of bearing block on passing the spindle motor seat, last ball-screw and the coaxial setting of the output shaft of last spindle motor seat, and its other end is spacing and support by last lead screw shaft bearing, last leading screw bearing cover is arranged on the end of lead screw shaft bearing, last leading screw guide housing then is arranged between lead screw shaft bearing and the last spindle motor seat, and be enclosed within the outside of ball-screw, and with last ball-screw the axle concentric setting, last leading screw guide housing middle part, its side also have along on the gathering sill A of ball-screw axis direction, last feed screw nut is enclosed within on the ball-screw and is spacing in gathering sill A.
4. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 3 is characterized in that, described top of going up the leading screw guide housing also is provided with the vision localization template.
5. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 1, it is characterized in that, described screw mechanism down comprises leading screw bearing cover down, following lead screw shaft bearing, following leading screw guide housing, following ball-screw, following feed screw nut, following spindle motor seat, following leading screw shaft coupling and following leading screw direct current generator, wherein, following spindle motor seat is fixedlyed connected with the main shaft interference fit of above-mentioned turbine B respectively, following leading screw direct current generator is connected down the side of spindle motor seat by screw, its output shaft and following leading screw shaft coupling one end locking, the other end of following leading screw shaft coupling is connected with the end of following ball-screw of bearing block on passing down the spindle motor seat, following ball-screw and the coaxial setting of the output shaft of following spindle motor seat, and its other end is by the spacing and support of lead screw shaft bearing down, following leading screw bearing cover is arranged on down the end of lead screw shaft bearing, following leading screw guide housing then is arranged on down between lead screw shaft bearing and the following spindle motor seat, and the outside of cover infra ball-screw, and with following ball-screw the axle concentric setting, following leading screw guide housing middle part, its side also have along under the gathering sill B of ball-screw axis direction, on the following screw nut sleeve infra ball-screw and spacing in gathering sill B.
6. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 1, it is characterized in that, described puncture needle mechanism comprises puncture needle, puncture needle fixed mechanism A and puncture needle fixed mechanism B, puncture needle fixed mechanism A and puncture needle fixed mechanism B are separately positioned on screw mechanism and the following screw mechanism, and puncture needle then is fixed on puncture needle fixed mechanism A and the puncture needle fixed mechanism B simultaneously.
7. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 6, it is characterized in that, described puncture needle fixed mechanism A comprises fairlead U-shaped locating ring A, fairlead cylindricality locating ring A, location battle pin A and puncture needle fairlead A, fairlead U-shaped locating ring A is connected by sliding bearing with above-mentioned last feed screw nut, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of last ball-screw, fairlead cylindricality locating ring A is connected the opening of fairlead U-shaped locating ring A by the location battle pin A of its both sides, its inside also is provided with puncture needle fairlead A with one heart, and puncture needle then is located in the puncture needle fairlead A.
8. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 7 is characterized in that, the axis of described puncture needle fairlead A, the axis of location battle pin A and the axis of fairlead U-shaped locating ring A meet at a bit, form ball pivot A.
9. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 6, it is characterized in that, described puncture needle fixed mechanism B comprises fairlead U-shaped locating ring B, fairlead cylindricality locating ring B, location battle pin B and puncture needle fairlead B, fairlead U-shaped locating ring B is connected by sliding bearing with above-mentioned following feed screw nut, and it is a symmetrical structure, its turning cylinder is perpendicular to the axle of following ball-screw, fairlead cylindricality locating ring B is connected the opening of fairlead U-shaped locating ring B by the location battle pin B of its both sides, its inside also is provided with puncture needle fairlead B with one heart, and puncture needle then is located in the puncture needle fairlead B.
10. the bipolar coordinate four-freedom parallel device people based on twin worm according to claim 9 is characterized in that, the axis of described puncture needle fairlead B, the axis of location battle pin B and the axis of fairlead U-shaped locating ring B meet at a bit, form ball pivot B.
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| CN2010205128831U CN201743779U (en) | 2010-08-30 | 2010-08-30 | Twin-worm-based bipolar-coordinate 4-DOF parallel robot |
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| CN2010205128831U CN201743779U (en) | 2010-08-30 | 2010-08-30 | Twin-worm-based bipolar-coordinate 4-DOF parallel robot |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933842A (en) * | 2010-08-30 | 2011-01-05 | 昆山市工业技术研究院有限责任公司 | Dipolar coordinate four free degrees parallel robot based on dual-worm |
| CN104622573A (en) * | 2014-12-12 | 2015-05-20 | 北京航空航天大学 | High-rigidity four-freedom-degree remote motion center mechanism |
| CN105395240A (en) * | 2015-11-18 | 2016-03-16 | 山东科技大学 | Prostate living tissue puncture robot |
| CN109793558A (en) * | 2018-12-19 | 2019-05-24 | 江苏集萃智能制造技术研究所有限公司 | Puncturing operation space mapping method based on binocular visual positioning |
| CN115429428A (en) * | 2022-07-25 | 2022-12-06 | 磅客策(上海)智能医疗科技有限公司 | Seven-degree-of-freedom transperineal prostate surgery navigation system and use method thereof |
-
2010
- 2010-08-30 CN CN2010205128831U patent/CN201743779U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933842A (en) * | 2010-08-30 | 2011-01-05 | 昆山市工业技术研究院有限责任公司 | Dipolar coordinate four free degrees parallel robot based on dual-worm |
| CN101933842B (en) * | 2010-08-30 | 2013-01-02 | 昆山市工业技术研究院有限责任公司 | Dipolar coordinate four free degrees parallel robot based on dual-worm |
| CN104622573A (en) * | 2014-12-12 | 2015-05-20 | 北京航空航天大学 | High-rigidity four-freedom-degree remote motion center mechanism |
| CN104622573B (en) * | 2014-12-12 | 2017-06-09 | 北京航空航天大学 | A kind of four-degree-of-freedom remote centre of motion mechanism with high rigidity |
| CN105395240A (en) * | 2015-11-18 | 2016-03-16 | 山东科技大学 | Prostate living tissue puncture robot |
| CN109793558A (en) * | 2018-12-19 | 2019-05-24 | 江苏集萃智能制造技术研究所有限公司 | Puncturing operation space mapping method based on binocular visual positioning |
| CN115429428A (en) * | 2022-07-25 | 2022-12-06 | 磅客策(上海)智能医疗科技有限公司 | Seven-degree-of-freedom transperineal prostate surgery navigation system and use method thereof |
| CN115429428B (en) * | 2022-07-25 | 2023-10-20 | 磅客策(上海)智能医疗科技有限公司 | Seven-degree-of-freedom transperineal prostate operation navigation system and application method thereof |
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