CN109826916A - A Single-Axis Helical Feeding Mechanism Based on Differential Principle - Google Patents
A Single-Axis Helical Feeding Mechanism Based on Differential Principle Download PDFInfo
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- CN109826916A CN109826916A CN201910055315.9A CN201910055315A CN109826916A CN 109826916 A CN109826916 A CN 109826916A CN 201910055315 A CN201910055315 A CN 201910055315A CN 109826916 A CN109826916 A CN 109826916A
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 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 description 6
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
一种基于差动原理的单轴螺旋进给机构，包括螺旋进给机构，螺旋进给机构包括丝杠，丝杠输入段通过第一轴承组安装在内主轴，内主轴通过第二轴承组安装在外主轴内，外主轴端面安装有拨叉组，拨叉组与进给主轴小间隙配合，进给主轴内圈与丝杠上的丝杠螺母固定连接；丝杠与第一电机主轴同轴固定连接，外主轴安装有大带轮，大带轮与小带轮通过同步带连接，小带轮与第二电机主轴同轴固定连接；通过第一电机和第二电机分别驱动的内主轴和外主轴的差动旋转，实现进给主轴的螺旋进给，且可通过双电机的转速分配实现旋转速度和轴向进给速度的调整，简单有效。
A single-axis screw feed mechanism based on the differential principle, including a screw feed mechanism, the screw feed mechanism includes a lead screw, the lead screw input section is mounted on an inner spindle through a first bearing group, and the inner spindle is mounted through a second bearing group Inside the outer main shaft, the end face of the outer main shaft is equipped with a fork group, which is matched with the feed spindle with a small gap, and the inner ring of the feed main shaft is fixedly connected with the screw nut on the lead screw; the lead screw is coaxially fixed with the first motor main shaft The outer spindle is equipped with a large pulley, the large pulley and the small pulley are connected by a synchronous belt, and the small pulley is coaxially and fixedly connected with the second motor spindle; the inner spindle and the outer spindle driven by the first motor and the second motor respectively The differential rotation of the spindle realizes the helical feed of the feed spindle, and the adjustment of the rotation speed and the axial feed speed can be realized through the speed distribution of the dual motors, which is simple and effective.
Description
Technical field
The present invention relates to screwfeed technical field, in particular to a kind of single axle helical based on differential principle feeds machine
Structure.
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.The prior art 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；Meanwhile to realize high-precision screwfeed track, it is necessary to rotate from main shaft
It is improved simultaneously with linear two aspect of mould group, difficulty is larger.
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 single shafts based on differential principle
Screwfeed mechanism may be implemented rotation and axial feed while main shaft, and can be distributed by the revolving speed of bi-motor and realize rotation
The adjustment of rotary speed and axial feed velocity.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of single axle helical feed mechanism based on differential principle, including screwfeed mechanism 8, screwfeed mechanism 8 are wrapped
Lead screw 8-1 is included, lead screw 8-1 input section is mounted on inner main axis 8-5 by first bearing group 8-3, and the one end inner main axis 8-5 is fixedly mounted
On bearing block base 5, it is mounted in outer main shaft 8-8 on the outside of the inner main axis 8-5 other end by second bearing group 8-9, outer master
Axis 8-8 right end end face is equipped with shift fork group 8-11, shift fork group 8-11 right end and feeding main shaft 8-13 small―gap suture cooperation, feeds main shaft
8-13 and 12 small―gap suture of pedestal cooperate, and feeding main shaft 8-13 inner ring is fixedly connected with the feed screw nut 8-12 on lead screw 8-1；
The lead screw 8-1 is fixedly and coaxially connected with 1 main shaft of first motor；
The outer main shaft 8-8 is equipped with big belt wheel 10, and big belt wheel 10 is connect with small pulley 11 by synchronous belt 9, small band
Wheel 11 is fixedly and coaxially connected with 6 main shaft of the second motor；
Pass through the inner main axis 8-5 and outer main shaft 8-8 of first motor 1 and the separately-driven screwfeed mechanism 8 of the second motor 6
Differential rotation, realize feeding main shaft 8-13 screwfeed.
The lead screw 8-1 is connect by shaft coupling 3 with 1 main shaft of first motor.
The first motor 1 is fixedly installed on first motor seat 2, and first motor seat 2 is fixedly installed on pedestal 12.
Second motor 6 is fixedly mounted on the second motor cabinet 7, and the second motor cabinet 7 is fixedly mounted on pedestal 12.
The big belt wheel 10 is locked on outer main shaft 8-8 by big round nut 8-7.
The lead screw 8-1 is ball-screw, lead screw or other machines for converting rotary motion to linear motion
Structure.
Beneficial effects of the present invention:
The present invention passes through first motor driven lead screw rotation, the rotation of another motor driven feed screw nut, feed screw nut
It is fixedly connected with feeding main shaft, realizes the rotation of feeding main shaft simultaneously by changing the rotational speed difference between lead screw and feed screw nut indirectly
Realize the compound motion of screwfeed, it is simple and effective.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is single axle helical feed 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, Fig. 2, a kind of single axle helical feed mechanism based on differential principle, including screwfeed mechanism 8, spiral
Feed mechanism 8 includes lead screw 8-1, and lead screw 8-1 input section is mounted on inner main axis 8-5, first bearing group by first bearing group 8-3
8-3 a pair of bearings is separated by spacer sleeve 8-4, is positioned by first end cover 8-2 axial locking, guarantees that lead screw 8-1 can be around interior
The axial line of main shaft 8-5 rotates, and the one end inner main axis 8-5 is fixedly mounted on bearing block base 5, and passes through upper bearing seat 4
It compresses；It is mounted in outer main shaft 8-8 on the outside of the inner main axis 8-5 other end by second bearing group 8-9, second bearing group 8-9 is axial
Locking positioning is carried out by small round nut 8-10, guarantees that outer main shaft 8-8 can be rotated around the axial line of inner main axis 8-5；Outer main shaft
8-8 right end end face is equipped with shift fork group 8-11, shift fork group 8-11 right end and feeding main shaft 8-13 small―gap suture cooperation by screw, protects
Card feeding main shaft 8-13 can be rotated under the stirring of shift fork group 8-11 with identical angular speed, while again can be along shift fork group
The sliding of 8-11 axial direction；It feeds the outer ring main shaft 8-13 and 12 inner ring small―gap suture of pedestal cooperates, feed main shaft 8-13 inner ring and silk
Feed screw nut 8-12 on thick stick 8-1 is fixedly connected, and guarantees that feeding main shaft 8-13 can be moved under feed screw nut 8-12 driving；
The lead screw 8-1 is fixedly and coaxially connected by shaft coupling 3 and 1 main shaft of first motor, and first motor 1 passes through screw
It is fixedly installed on first motor seat 2, first motor seat 2 is fixedly installed on pedestal 12 by screw, guarantees that first motor 1 is driven
Dynamic lead screw 8-1 makees rotary motion, realizes the compound motion of rotary shaft, axial movement of feed screw nut 8-12 or both；
The outer main shaft 8-8 is equipped with big belt wheel 10, and big belt wheel 10 is locked on outer main shaft 8-8 by big round nut 8-7,
Guarantee outer main shaft 8-8 and 10 synchronous rotary of big belt wheel；Big belt wheel 10 and small pulley 11 are connect by synchronous belt 9, small pulley 11 with
Second motor, 6 main shaft is fixedly and coaxially connected, and the second motor 6 is fixedly mounted on the second motor cabinet 7 by screw, the second motor cabinet
7 are fixedly mounted on pedestal 12 by screw, guarantee that the second motor 6 can drive outer main shaft 8-8 to make rotary motion；
Pass through the inner main axis 8-5 and outer main shaft 8-8 of first motor 1 and the separately-driven screwfeed mechanism 8 of the second motor 6
Differential rotation, realize feeding main shaft 8-13 screwfeed.
The lead screw 8-1 is ball-screw, lead screw or other machines for converting rotary motion to linear motion
Structure.
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 6 revolving speed is N2, direction be it is counterclockwise,
The pitch diameter of big belt wheel 10 is D, and the pitch diameter of small pulley 11 is d, and the lead of lead screw 8-1 is P, dextrorotation, and each parameter is adopted
It is available with SI units:
The revolving speed of lead screw 8-1 are as follows:
NS=N1
The revolving speed (feeding the revolving speed of main shaft 8-13) of feed screw nut 8-12 are as follows:
NL=N2×d/D
Due to feeding main shaft 8-13 axial velocity depending on the revolving speed of lead screw 8-1, feed screw nut 8-12 revolving speed and
The lead P of lead screw can get:
V=(N2×d/D-N1)/60×P/1000
It is available to draw a conclusion by above formula:
Work as N2× d/D=N1When, feeding main shaft 8-13 rotates counterclockwise, not axial feed；
Work as N2×d/D>N1When, feeding main shaft 8-13 rotates counterclockwise, axial positive feeding；
Work as N2×d/D<N1When, feeding main shaft 8-13 rotates counterclockwise, axial negative sense feeding；
When the rotation direction of lead screw 8-1 is left-handed, feeding main shaft 8-13 axial feed direction is opposite with foregoing description.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055315.9A CN109826916A (en) | 2019-01-21 | 2019-01-21 | A Single-Axis Helical Feeding Mechanism Based on Differential Principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910055315.9A CN109826916A (en) | 2019-01-21 | 2019-01-21 | A Single-Axis Helical Feeding Mechanism Based on Differential Principle |
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| CN109826916A true CN109826916A (en) | 2019-05-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337348A (en) * | 2020-04-07 | 2020-06-26 | 北方工业大学 | Biaxial stretching device and biaxial stretching method with adjustable stretching rate in a wide range |
| CN114540584A (en) * | 2022-03-17 | 2022-05-27 | 浙江坤亿佳机械制造有限公司 | Automatic heat treatment processing device for lead screw and use method |
| WO2023202086A1 (en) * | 2022-04-20 | 2023-10-26 | 科德数控股份有限公司 | High-speed nut rotating feeding lead screw device |
| CN120755385A (en) * | 2025-09-08 | 2025-10-10 | 大连理工大学 | Portable wide-range output double-power automatic hole making equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692013A (en) * | 2002-12-11 | 2005-11-02 | 株式会社东洋工机 | Reciprocating drive mechanism and press machine using the mechanism |
| US20080092680A1 (en) * | 2006-10-24 | 2008-04-24 | Samsung Techwin Co., Ltd. | Substrate transfer apparatus and method of driving the same |
| CN102794491A (en) * | 2012-08-22 | 2012-11-28 | 浙江大学 | Device and method of automatic helical milling of hole |
| CN104714485A (en) * | 2015-02-12 | 2015-06-17 | 山东大学 | Novel high-precision micro-feeding servo system and control method thereof |
| CN109238848A (en) * | 2018-09-12 | 2019-01-18 | 中国科学技术大学 | ESEM in-situ mechanical test platform |
-
2019
- 2019-01-21 CN CN201910055315.9A patent/CN109826916A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1692013A (en) * | 2002-12-11 | 2005-11-02 | 株式会社东洋工机 | Reciprocating drive mechanism and press machine using the mechanism |
| US20080092680A1 (en) * | 2006-10-24 | 2008-04-24 | Samsung Techwin Co., Ltd. | Substrate transfer apparatus and method of driving the same |
| CN102794491A (en) * | 2012-08-22 | 2012-11-28 | 浙江大学 | Device and method of automatic helical milling of hole |
| CN104714485A (en) * | 2015-02-12 | 2015-06-17 | 山东大学 | Novel high-precision micro-feeding servo system and control method thereof |
| CN109238848A (en) * | 2018-09-12 | 2019-01-18 | 中国科学技术大学 | ESEM in-situ mechanical test platform |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337348A (en) * | 2020-04-07 | 2020-06-26 | 北方工业大学 | Biaxial stretching device and biaxial stretching method with adjustable stretching rate in a wide range |
| CN114540584A (en) * | 2022-03-17 | 2022-05-27 | 浙江坤亿佳机械制造有限公司 | Automatic heat treatment processing device for lead screw and use method |
| CN114540584B (en) * | 2022-03-17 | 2023-10-27 | 浙江坤亿佳机械制造有限公司 | Automatic heat treatment processing device for screw rod and use method |
| WO2023202086A1 (en) * | 2022-04-20 | 2023-10-26 | 科德数控股份有限公司 | High-speed nut rotating feeding lead screw device |
| US20250114891A1 (en) * | 2022-04-20 | 2025-04-10 | Kede Numerical Control Co., Ltd. | High-speed nut rotating feeding lead screw device |
| CN120755385A (en) * | 2025-09-08 | 2025-10-10 | 大连理工大学 | Portable wide-range output double-power automatic hole making equipment |
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