CN109826917A - A kind of double-shaft spiral synchronous feeding mechanism based on differential principle - Google Patents
A kind of double-shaft spiral synchronous feeding mechanism based on differential principle Download PDFInfo
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- CN109826917A CN109826917A CN201910060764.2A CN201910060764A CN109826917A CN 109826917 A CN109826917 A CN 109826917A CN 201910060764 A CN201910060764 A CN 201910060764A CN 109826917 A CN109826917 A CN 109826917A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 29
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
A kind of double-shaft spiral synchronous feeding mechanism based on differential principle, including synchro-feed group and two driving groups being attached thereto, two driving groups pass through one lead screw of a motor driven respectively, one lead screw and a main shaft form ball screw assembly, main shaft is installed in the groove that upper half connecting rod and lower half connecting rod surround by bearing group, one belt wheel is installed on one main shaft, pass through synchronous band connection between two belt wheels, upper half connecting rod drive link synchronous with lower half connecting rod composition, common two main shafts of driving constant speed movement axial while in the same direction along corresponding lead screw, the present invention realizes the synchronous rotary and axial feed of double main shafts by changing the revolving speed of bi-motor, and the adjustment for realizing double main shaft synchronous rotary speed and axial feed velocity can be distributed by the revolving speed of bi-motor, scheme is simple and effective.
Description
Technical field
The present invention relates to screwfeed technical field, in particular to a kind of double-shaft spiral synchro-feed based on differential principle
Mechanism.
Background technique
It in engineer application, generally requires simplest scheme and realizes complicated compound motion, wherein screwfeed fortune
Dynamic, i.e. rotation simultaneously is one such with axial feed.Existing method often uses main shaft rotation and linear mould group string
The mode of connection, controls motion of main shaft motor by way of electronic gear and linear mould group motion motor realizes screwfeed fortune
It is dynamic, but will cause excessive radial dimension.It is often also only mechanical to realize the synchronous screw feed motion of two main shafts
Series connection, one side waste of resource, while also resulting in larger inconvenience to control algolithm.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of twin shafts based on differential principle
Helical synchronous feed mechanism, the revolving speed by changing bi-motor realizes the synchronous rotary and axial feed of double main shafts, and can pass through
The adjustment of double main shaft synchronous rotary speed and axial feed velocity is realized in the revolving speed distribution of bi-motor, and scheme is simple and effective.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of double-shaft spiral synchronous feeding mechanism based on differential principle, including synchro-feed group and be attached thereto first
Driving group, the second driving group, the first driving group are identical with the structure type of the second driving group；
First driving group includes first motor 1, the fixed company of 1 projecting shaft of first motor and 3 one end of first shaft coupling
It connects, 3 other end of first shaft coupling is fixedly connected with 9 left end of the first lead screw；First lead screw 9 is installed on the by first bearing group 23
On one bearing block 5, and compressed by first bearing seat briquetting 4；
Second driving group includes the second motor 11, and 11 projecting shaft of the second motor is fixedly connected with 13 one end of second shaft coupling,
13 other end of second shaft coupling is fixedly connected with 19 left end of the second lead screw；Second lead screw 19 is fixedly mounted by 3rd bearing group 28
It is compressed in second bearing seat 15, and by second bearing seat briquetting 14；
Synchro-feed group includes the first main shaft 8 and the second main shaft 18, and the first main shaft 8 and the first lead screw 9 form ball-screw
Pair, 8 left end of the first main shaft are installed in the groove that upper half connecting rod 20 and lower half connecting rod 21 surround by second bearing group 26；First
8 right end of main shaft is equipped with first pulley 6；
Second main shaft 18 and the second lead screw 19 form ball screw assembly, and 18 left end of the second main shaft is pacified by fourth bearing group 31
In the groove surrounded loaded on another group of upper half connecting rod 20 and lower half connecting rod 21,18 right end of the second main shaft is equipped with the second belt wheel 16；
It is connected between first pulley 6 and the second belt wheel 16 by synchronous belt 22, upper half connecting rod 20 and lower half connecting rod 21 form
Synchronous drive link, it is common to drive the first main shaft 8 and the second main shaft 18 axial while in the same direction along the first lead screw 9 and the second lead screw 19
Constant speed movement.
The first motor 1 is fixedly installed on first motor seat 2, and first motor seat 2 is fixedly installed on pedestal 10；
Second motor 11 is fixedly installed on the second motor cabinet 12, and the second motor cabinet 12 is fixedly installed on pedestal 10.
The 23 two bearings axial spacing of first bearing group is adjusted by the first spacer sleeve 24,3rd bearing group
28 two bearings axial spacings are adjusted by third spacer sleeve 29；Second bearing group 26 is adjusted by the second spacer sleeve 27
Axial distance carries out axially position locking by the first round nut 25；Fourth bearing group 31 is adjusted by the 4th spacer sleeve 32
Axial distance, and axially position locking is carried out by the second round nut 30.
The first pulley 6 carries out axially position locking by the first locking nut 7, and the second belt wheel 16 passes through the second lock
Tight nut 17 carries out axially position locking.
First lead screw 9 and the second lead screw 19 is ball-screw, lead screw or other converts rotary motion
For the mechanism of linear motion.
Beneficial effects of the present invention:
The present invention respectively drives two lead screw rotations based on lead screw pair, through two motors, and connecting rod connects two simultaneously
The synchronous axial movement of a feed screw nut, the revolving speed by being directly changed two motors realize double main shafts synchronous rotary and it is axial into
It gives, i.e. the compound motion of double-shaft spiral synchro-feed, and can realize two main shaft rotation speed by the revolving speed distribution of two motors
The adjustment of degree and axial feed velocity, scheme are simple and effective.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is double-shaft spiral synchronous feeding mechanism half sectional view of the present invention.
Specific embodiment
The present invention is described further with reference to the accompanying drawing.
Referring to Fig.1,2, a kind of double-shaft spiral synchronous feeding mechanism based on differential principle, including synchro-feed group and therewith
The first driving group, the second driving group of connection, the first driving group are identical with the structure type of the second driving group；
First driving group includes first motor 1, and first motor 1 is fixedly installed on first motor seat 2, the first electricity
Base 2 is fixedly installed on pedestal 10；1 projecting shaft of first motor is fixedly connected with 3 one end of first shaft coupling, first shaft coupling 3
The other end is fixedly connected with 9 left end of the first lead screw；First lead screw 9 is installed in first bearing seat 5 by first bearing group 23, and
It being compressed by first bearing seat briquetting 4,23 two bearings axial spacing of first bearing group is adjusted by the first spacer sleeve 24,
First motor 1 drives the first lead screw 9 to be rotated；
Second driving group includes the second motor 11, and the second motor 11 is fixedly installed on the second motor cabinet 12, the second motor
Seat 12 is fixedly installed on pedestal 10；Second motor, 11 projecting shaft is fixedly connected with 13 one end of second shaft coupling, second shaft coupling
13 other ends are fixedly connected with 19 left end of the second lead screw；Second lead screw 19 is fixedly installed in second bearing by 3rd bearing group 28
It on seat 15, and is compressed by second bearing seat briquetting 14,28 two bearings axial spacing of 3rd bearing group passes through third spacer sleeve
29 are adjusted, and the second motor 11 drives the second lead screw 19 to be rotated；
Synchro-feed group includes the first main shaft 8 and the second main shaft 18, and the first main shaft 8 and the first lead screw 9 form ball-screw
Pair, the first main shaft 8 can be rotated and be moved axially around 9 axial line of the first lead screw, and 8 left end of the first main shaft passes through the second axis
It holds group 26 to be installed in the groove that upper half connecting rod 20 and lower half connecting rod 21 surround, second bearing group 26 passes through the second spacer sleeve 27
Axial distance is adjusted, axially position locking is carried out by the first round nut 25；First main shaft, 8 right end is equipped with first pulley 6, the
One belt wheel 6 carries out axially position locking by the first locking nut 7；
Second main shaft 18 and the second lead screw 19 form ball screw assembly, and the second main shaft 18 can be around 19 axial line of the second lead screw
It rotates and moves axially；Second main shaft, 18 left end is installed on another group of upper half connecting rod 20 under by fourth bearing group 31
In the groove that half connecting rod 21 surrounds, fourth bearing group 31 adjusts axial distance by the 4th spacer sleeve 32, and passes through the second circle
Nut 30 carries out axially position locking；Second main shaft, 18 right end is equipped with the second belt wheel 16, is carried out by the second locking nut 17
Axially position locking；
It is connected between first pulley 6 and the second belt wheel 16 by synchronous belt 22, realizes the first main shaft 8 and the second main shaft 18
Rotating Vortex simultaneously；The drive link synchronous with the composition of lower half connecting rod 21 of upper half connecting rod 20, common the first main shaft of driving 8 and second are main
The constant speed movement axial while in the same direction along the first lead screw 9 and the second lead screw 19 of axis 18.
First lead screw 9 and the second lead screw 19 is ball-screw, lead screw or other converts rotary motion
For the mechanism of linear motion.
The operation principle of the present invention is that:
Assuming that the revolving speed of first motor 1 is N1, direction is that counterclockwise, the second motor 11 revolving speed is N2, direction is the inverse time
Needle, the lead of the first lead screw 9 are P1, dextrorotation, the lead of the second lead screw 19 is P2, dextrorotation；Simultaneously, it is assumed that the revolving speed of the first main shaft 8
For W1, the revolving speed of the second main shaft 18 is W2, the pitch diameter of first pulley 6 is D1, the pitch diameter of the second belt wheel 16 is D2, the
The common axial displacement of one main shaft 8 and the second main shaft 18 is L, and above each parameter is all made of SI units.
Under the driving of synchronous belt 22, there are following relationships for the revolving speed of the first main shaft 8 and the second main shaft 18:
W1/W2=D2/D1, then W1=D2/D1×W2,
Under the action of synchronous drive link, the axial movement speed v of the first main shaft 8 and the second main shaft 18 are as follows:
V=(N1-W1)×P1=(N2-W2)×P2
By W1It is brought into above formula, can obtain
N1-N2×P2/P1=(D2/D1-P2/P1)×W2
Then, W2=(N1-N2×P2/P1)/(D2/D1-P2/P1)
From the above equation, we can see that
When meeting D2/D1≠P2/P1, and N1/N2≠P2/P1, it can be achieved that double-shaft spiral synchro-feed, and the first main shaft 8 and
Two main shafts, 18 rotation speed and axial feed velocity can uniquely determine；
When meeting D2/D1≠P2/P1, and N1/N2=P2/P1, the first main shaft 8 and the second main shaft 18 not will do it rotation, only
Carry out axial feed；
When meeting D2/D1=P2/P1, and N1/N2=P2/P1Even if without the limitation of upper half connecting rod 20 and lower half connecting rod 21,
First main shaft 8 and 18 axial feed velocity of the second main shaft are always consistent, and revolving speed follows following rule: W always1/W2=N1/
N2；
When the rotation direction of lead screw is left-handed or when the rotation speed of motor is clockwise, only it need to change relevant parameter just
Negative sign does not influence final conclusion.
Claims (5)
1. a kind of double-shaft spiral synchronous feeding mechanism based on differential principle, it is characterised in that: including synchro-feed group and therewith
The first driving group, the second driving group of connection, the first driving group are identical with the structure type of the second driving group；
First driving group includes first motor (1), and first motor (1) projecting shaft is fixed with first shaft coupling (3) one end
Connection, first shaft coupling (3) other end are fixedly connected with the first lead screw (9) left end；First lead screw (9) passes through first bearing group
(23) it is installed on first bearing seat (5), and is compressed by first bearing seat briquetting (4)；
Second driving group includes the second motor (11), the fixed company of the second motor (11) projecting shaft and second shaft coupling (13) one end
It connects, second shaft coupling (13) other end is fixedly connected with the second lead screw (19) left end；Second lead screw (19) passes through 3rd bearing group
(28) it is fixedly installed on second bearing seat (15), and is compressed by second bearing seat briquetting (14)；
Synchro-feed group includes the first main shaft (8) and the second main shaft (18), and the first main shaft (8) and the first lead screw (9) form ball
Lead screw pair, the first main shaft (8) left end is installed on upper half connecting rod (20) by second bearing group (26) and lower half connecting rod (21) surrounds
Groove in；First main shaft (8) right end is equipped with first pulley (6)；
Second main shaft (18) and the second lead screw (19) form ball screw assembly, and the second main shaft (18) left end passes through fourth bearing group
(31) be installed on another group of upper half connecting rod (20) and groove that lower half connecting rod (21) surrounds in, the second main shaft (18) right end is equipped with
Second belt wheel (16)；
It is connected between first pulley (6) and the second belt wheel (16) by synchronous belt (22), upper half connecting rod (20) and lower half connecting rod
(21) synchronous drive link is formed, it is common to drive the first main shaft (8) and the second main shaft (18) along the first lead screw (9) and the second lead screw
(19) axial while constant speed movement in the same direction.
2. a kind of double-shaft spiral synchronous feeding mechanism based on differential principle according to claim 1, it is characterised in that: institute
The first motor (1) stated is fixedly installed on first motor seat (2), and first motor seat (2) is fixedly installed on pedestal (10)；The
Two motors (11) are fixedly installed on the second motor cabinet (12), and the second motor cabinet (12) is fixedly installed on pedestal (10).
3. a kind of double-shaft spiral synchronous feeding mechanism based on differential principle according to claim 1, it is characterised in that: institute
First bearing group (23) the two bearings axial spacing stated is adjusted by the first spacer sleeve (24), 3rd bearing group (28) two
Bearing axial spacing is adjusted by third spacer sleeve (29)；Second bearing group (26) is adjusted by the second spacer sleeve (27)
Whole axial distance carries out axially position locking by the first round nut (25)；Fourth bearing group (31) passes through the 4th spacer sleeve
(32) axial distance is adjusted, and carries out axially position locking by the second round nut (30).
4. a kind of double-shaft spiral synchronous feeding mechanism based on differential principle according to claim 1, it is characterised in that: institute
The first pulley (6) stated carries out axially position locking by the first locking nut (7), and the second belt wheel (16) passes through the second locking screw
Female (17) carry out axially position locking.
5. a kind of double-shaft spiral synchronous feeding mechanism based on differential principle according to claim 1, it is characterised in that: institute
The first lead screw (9) and the second lead screw (19) stated are ball-screw, lead screw or other convert straight line for rotary motion
The mechanism of movement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060764.2A CN109826917B (en) | 2019-01-21 | 2019-01-21 | Double-shaft spiral synchronous feeding mechanism based on differential principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060764.2A CN109826917B (en) | 2019-01-21 | 2019-01-21 | Double-shaft spiral synchronous feeding mechanism based on differential principle |
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| Publication Number | Publication Date |
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| CN109826917A true CN109826917A (en) | 2019-05-31 |
| CN109826917B CN109826917B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910060764.2A Active CN109826917B (en) | 2019-01-21 | 2019-01-21 | Double-shaft spiral synchronous feeding mechanism based on differential principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610753A (en) * | 2020-06-09 | 2020-09-01 | 聊城大学 | Differential micro-feeding servo system of double linear motors and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231335A (en) * | 1991-06-28 | 1993-07-27 | Matsushita Electric Industrial Co., Ltd. | Double spindle synchronous driving apparatus |
| JPH1177472A (en) * | 1997-09-08 | 1999-03-23 | Nissan Motor Co Ltd | Feed unit provided with ball screw |
| JP2000283261A (en) * | 1999-03-29 | 2000-10-13 | Okuma Corp | Movable body driving device |
| CN103008773A (en) * | 2012-12-10 | 2013-04-03 | 天水锻压机床(集团)有限公司 | Nut rotating ball screw pair transmission unit |
| CN202877995U (en) * | 2012-09-14 | 2013-04-17 | 山东大学 | Double nut driven type ball screw assembly feeding mechanism |
| CN104260083A (en) * | 2014-10-09 | 2015-01-07 | 马鞍山市安工大工业技术研究院有限公司 | Five-degree-of-freedom planar joint robot mechanism |
| WO2018000455A1 (en) * | 2016-07-01 | 2018-01-04 | 南通贝特医药机械有限公司 | Automatic capsule machine head |
-
2019
- 2019-01-21 CN CN201910060764.2A patent/CN109826917B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231335A (en) * | 1991-06-28 | 1993-07-27 | Matsushita Electric Industrial Co., Ltd. | Double spindle synchronous driving apparatus |
| JPH1177472A (en) * | 1997-09-08 | 1999-03-23 | Nissan Motor Co Ltd | Feed unit provided with ball screw |
| JP2000283261A (en) * | 1999-03-29 | 2000-10-13 | Okuma Corp | Movable body driving device |
| CN202877995U (en) * | 2012-09-14 | 2013-04-17 | 山东大学 | Double nut driven type ball screw assembly feeding mechanism |
| CN103008773A (en) * | 2012-12-10 | 2013-04-03 | 天水锻压机床(集团)有限公司 | Nut rotating ball screw pair transmission unit |
| CN104260083A (en) * | 2014-10-09 | 2015-01-07 | 马鞍山市安工大工业技术研究院有限公司 | Five-degree-of-freedom planar joint robot mechanism |
| WO2018000455A1 (en) * | 2016-07-01 | 2018-01-04 | 南通贝特医药机械有限公司 | Automatic capsule machine head |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610753A (en) * | 2020-06-09 | 2020-09-01 | 聊城大学 | Differential micro-feeding servo system of double linear motors and control method |
| CN111610753B (en) * | 2020-06-09 | 2021-10-08 | 聊城大学 | Differential micro-feeding servo system of double linear motors and control method |
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| Publication number | Publication date |
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| CN109826917B (en) | 2022-04-29 |
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Application publication date: 20190531 Assignee: Xi'an Sega Motor Co.,Ltd. Assignor: SHAANXI University OF SCIENCE & TECHNOLOGY Contract record no.: X2023980036030 Denomination of invention: A Double Axis Spiral Synchronous Feed Mechanism Based on Differential Principle Granted publication date: 20220429 License type: Common License Record date: 20230531 |
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Application publication date: 20190531 Assignee: Shaanxi Longqing Zhixin Information Technology Co.,Ltd. Assignor: SHAANXI University OF SCIENCE & TECHNOLOGY Contract record no.: X2023980052651 Denomination of invention: A Double Axis Spiral Synchronous Feed Mechanism Based on Differential Principle Granted publication date: 20220429 License type: Common License Record date: 20231218 |