CN201291387Y - Modified roll mechanism control shaft dual-drive mechanism - Google Patents
Modified roll mechanism control shaft dual-drive mechanism Download PDFInfo
- Publication number
- CN201291387Y CN201291387Y CNU2008201520304U CN200820152030U CN201291387Y CN 201291387 Y CN201291387 Y CN 201291387Y CN U2008201520304 U CNU2008201520304 U CN U2008201520304U CN 200820152030 U CN200820152030 U CN 200820152030U CN 201291387 Y CN201291387 Y CN 201291387Y
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- China
- Prior art keywords
- control shaft
- shaft
- gear drive
- differential attachment
- drive mechanism
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Abstract
The utility model relates to a duplex driving mechanism for a control shaft of a differential mechanism, which comprises a servo motor(6), a gear drive mechanism(2), a combined bearing(3), two ball bearing screw rod pairs(4)and a screw seat(5). The screw seat(5)is installed on the control shaft(1)of the differential mechanism through the combined bearing(3). The two ball bearing screw rod pairs(4)are installed on the screw seat(5) through the gear drive mechanism(2)and are symmetrically distributed in parallel at two sides of the control shaft(1)of the differential mechanism; and one of the screw rod pairs(4) is connected with the servo motor(6). The stresses on the screw seat are almost even and the direction of the force acted on the principal shaft is fundamentally consistent with the feeding direction of the principal shaft, which effectively reduces the torque when single side of the principal shaft is stressed, thus eliminating the bending possibility of the principal shaft, ensuring the rigidity of the principal shaft and greatly improving the machining precision of the machine tool.
Description
Technical field
The utility model belongs to horizontal Machining centers machine tool component field, particularly relates to a kind of differential attachment Control Shaft driving mechanism.
Background technology
Follow and manufacture developing rapidly of industry, machining equipment is had higher requirement.Machining center constantly develops toward the direction of the big range of work, horizontal Machining centers adopts differential attachment Control Shaft (W axle) more now, adding ball-screw by servomotor by flexible shaft coupling constitutes, directly drag ball-screw by servomotor and realize upper slide reciprocating action, successfully must strengthen the range of work.But these all are traditional W axis mechanisms, in this case, when the W axle is reciprocating, because it is monolateral stressed that the monofilament thick stick drives, can make main shaft that the generation of a winding degree is arranged, cause main shaft and rack sleeve that a power is arranged, thereby reduce machining accuracy and service life, make the lathe can't operate as normal.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of differential attachment Control Shaft double driving mechanism, to solve machining accuracy deficiency in the prior art, the defective that service life is low.
A kind of differential attachment Control Shaft double driving mechanism, comprise servomotor, gear drive, combination bearing, two ball screw assembly,s and nut seat, described nut seat is installed on the differential attachment Control Shaft by combination bearing, described two ball screw assembly,s are contained in the parallel differential attachment Control Shaft both sides that are symmetrically distributed on the nut seat by gear drive, and one of them ball screw assembly, links to each other with servomotor.
Described gear drive is made of planetary gear and sun gear.
Beneficial effect
Mariages bumper structure of the present utility model can very effectively must be alleviated other directive effect power to main shaft, we are transferred on two screw gears by sun gear with motor, nut seat is stressed almost average like this, the force direction that acts on the main shaft is basic consistent with the axis feeding direction, has effectively alleviated the torque to the monolateral stressed generation of main shaft; And the layout of two rhizoid thick sticks can conveniently regulate the gap with sun gear, sun gear move the gap that can control with screw gear, the gear clearance of regulating motor-driven gear and sun gear at last reaches installation requirement.Regulate the parallel of both sides leading screw in addition, suitable to the thrust of main shaft in order to guarantee the mariages thick stick, it is parallel with the differential attachment Control Shaft to regulate leading screw in assembling, thereby causes nut seat vertically to drive axis feeding.Guarantee the rigidity of main shaft, in sum, this mechanism causes axis feeding by nut seat of both sides leading screw pulling, the direction that acts on the power on the main shaft is consistent with the axis feeding direction, thereby eliminate the possibility that main shaft is produced winding degree, guarantee the rigidity of main shaft, improved the machining accuracy of lathe greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
As shown in Figure 1, a kind of differential attachment Control Shaft double driving mechanism, it is characterized in that: comprise servomotor 6, gear drive 2, combination bearing 3, two ball screw assembly,s 4 and nut seats 5, described nut seat 5 is installed on the differential attachment Control Shaft 1 by combination bearing 3, described two ball screw assembly,s 4 are contained in parallel differential attachment Control Shaft 1 both sides that are symmetrically distributed on the nut seat 5 by gear drive 2, and one of them ball screw assembly, 4 links to each other 6 with servomotor; Described gear drive 2 is made of planetary gear 21 and sun gear 22.
Claims (2)
1. differential attachment Control Shaft double driving mechanism, it is characterized in that: comprise servomotor (6), gear drive (2), combination bearing (3), two ball screw assembly,s (4) and nut seat (5), described nut seat (5) is installed on the differential attachment Control Shaft (1) by combination bearing (3), described two ball screw assembly,s (4) are contained in nut seat (5) by gear drive (2) and go up parallel differential attachment Control Shaft (1) both sides that are symmetrically distributed in, and one of them ball screw assembly, (4) links to each other with servomotor (6).
2. differential attachment Control Shaft double driving mechanism as claimed in claim 1 is characterized in that: described gear drive (2) is made of planetary gear (21) and sun gear (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520304U CN201291387Y (en) | 2008-08-15 | 2008-08-15 | Modified roll mechanism control shaft dual-drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520304U CN201291387Y (en) | 2008-08-15 | 2008-08-15 | Modified roll mechanism control shaft dual-drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201291387Y true CN201291387Y (en) | 2009-08-19 |
Family
ID=41004844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201520304U Expired - Lifetime CN201291387Y (en) | 2008-08-15 | 2008-08-15 | Modified roll mechanism control shaft dual-drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201291387Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745821B (en) * | 2009-12-22 | 2011-06-29 | 陕西科技大学 | Differential servo driven swinging/moving workbench device |
| CN102284864A (en) * | 2011-08-11 | 2011-12-21 | 宁波海天精工机械有限公司 | Numerical control boring-milling center having gantry frame type vertical post positively-hung box structure |
| CN106979296A (en) * | 2017-06-07 | 2017-07-25 | 北京精雕科技集团有限公司 | A kind of transmission device of screw-nut dual drive |
| CN111219464A (en) * | 2019-11-18 | 2020-06-02 | 歌尔股份有限公司 | Axial drive mechanism and electromechanical device |
-
2008
- 2008-08-15 CN CNU2008201520304U patent/CN201291387Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745821B (en) * | 2009-12-22 | 2011-06-29 | 陕西科技大学 | Differential servo driven swinging/moving workbench device |
| CN102284864A (en) * | 2011-08-11 | 2011-12-21 | 宁波海天精工机械有限公司 | Numerical control boring-milling center having gantry frame type vertical post positively-hung box structure |
| CN106979296A (en) * | 2017-06-07 | 2017-07-25 | 北京精雕科技集团有限公司 | A kind of transmission device of screw-nut dual drive |
| CN111219464A (en) * | 2019-11-18 | 2020-06-02 | 歌尔股份有限公司 | Axial drive mechanism and electromechanical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO HAITIAN PRECISION MACHINERY CO., LTD Free format text: FORMER NAME: NINGBO HAITIAN PRECISION MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 315800 Mount Huangshan West Road, Beilun District, Zhejiang, No. 235, No. Patentee after: Ningbo Haitian Precision Machinery Co., Ltd. Address before: 315000 No. 235 West Mount Huangshan Road, Beilun District, Zhejiang, Ningbo Patentee before: Ningbo Haitian Precision Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090819 Effective date of abandoning: 20170913 |