CN104175133B - Grand micro-Dual Drive heavy duty cutting positioner - Google Patents
Grand micro-Dual Drive heavy duty cutting positioner Download PDFInfo
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- CN104175133B CN104175133B CN201410326178.5A CN201410326178A CN104175133B CN 104175133 B CN104175133 B CN 104175133B CN 201410326178 A CN201410326178 A CN 201410326178A CN 104175133 B CN104175133 B CN 104175133B
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- flip body
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- table surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/64—Movable or adjustable work or tool supports characterised by the purpose of the movement
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Abstract
A kind of grand micro-Dual Drive heavy duty cutting positioner of disclosure, the fine motion sections in series of the interior flip body that its table surface switching mechanism is driven by grand dynamic part and two leading screws of the outer flip body of two Driven by Hydraulic Cylinder forms, outer flip body is arranged on outside column by bearing, hydraulic cylinder two ends are separately mounted on base and outer flip body, outer flip body is driven to carry out quick wide-angle upset relative to base, it is achieved the grand tune of using force of table surface flip angle; Interior flip body is arranged in the middle of column by bearing, its trip shaft is concentric with the trip shaft of outer flip body, leading screw is fixed on outer flip body, feed screw nut is arranged on interior flip body, in leading screw drives, flip body carries out low-angle upset relative to outer flip body, it is achieved the fine motion accurate adjustment of table surface flip angle; Table surface is arranged on interior flip body, torque motor driven by gear and gear ring. Positioner flip angle of the present invention ranges for 0 °～70 °, and positioning precision is up to 8 ".
Description
Technical field
The present invention relates to a kind of positioner in heavy process equipment field, cut positioner particularly to a kind of workbench by the heavy duty of hydraulic cylinder and leading screw tandem drive.
Background technology
In the machining of heavy vessel, heavy boring-milling center has machining accuracy height, the feature of reliable in quality, but equipment manufacturing cost is extremely expensive, and high-end product typically requires import. Heavy duty cutting positioner then can coordinate the existing large-sized gantry formula milling-boring machine of heavy industry enterprise and floor-type milling & boring machine, and large-sized end enclosure device on nuclear power and wind power equipment is processed, and machining accuracy is higher and manufacturing cost is greatly reduced.
What processing heavy parts was the most difficult is process moving and relocating of different inter process workpiece, and traditional mode needs first to be hung away by workpiece overhead traveling crane, then adjusts fixture postures, then workpiece hangs back installation, such precision it is difficult to ensure that. Machining automatic position changer is mainly used in the Precision Machining of workpiece, should have high positioning precision and locating stiffness, reliable position keep lock ability and impact resistance, simultaneously for ease of coordinating with lathe and keeping machine tool accuracy, height dimension is had strict restriction.
At present heavy duty positioner mainly have that partial gear is driving, type hydraulic actuator and leading screw driving.
Through the retrieval of prior art is found, Chinese Patent Application No. 201010225365.6 describes one " dual-drive dual-screw rod positioner ", this technology includes: horizontal transport agency, luffing mechanism and rotating mechanism, wherein: luffing mechanism is arranged on horizontal transport agency, and rotating mechanism is arranged on luffing mechanism. Described horizontal transport agency includes: frame, slide unit, horizontal screw lead and horizontal screw lead motor, wherein: slide unit is arranged in frame, one end of horizontal screw lead is fixed in frame, the other end of horizontal screw lead is connected with slide unit, horizontal screw lead motor is connected with horizontal screw lead, and luffing mechanism is arranged on slide unit.This positioner adopts double lead-screw to drive, and the length of leading screw is long, is easily caused strut buckling or deformation, and this positioner leading screw free end is downward, need to dig dell in positioner fabricating yard and be put into by leading screw free end, use comparatively inconvenience under heavy duty.
Chinese Patent Application No. 201110099408.5 describes one " hybrid-drive heavy-load two-degree-of-freedom positioner for hydraulic screw rod ", this technology includes: luffing mechanism and rotating mechanism, wherein: the two ends of luffing mechanism are flexibly connected with frame respectively, rotating mechanism is fixedly installed on the top of luffing mechanism. This device drives common realization by hydraulic-driven and leading screw. This positioner fluid power system and screw drive system are not series connection synthesis, but the startup of hydraulic cylinder or stopping are wanted and location leading screw servomotor keeps synchronizing, and control extremely complex. This positioner adopts single leading screw to drive angle accurate adjustment part, and bearing capacity is limited, and screw travel comprises Driven by Hydraulic Cylinder stroke, and stroke is longer and need to dig dell in positioner fabricating yard and is put into by leading screw free end. This positioner hydraulic-driven part does not rigidly fix after coarse adjustment angle, and therefore table surface final angle is subject to the phenomena impair such as hydraulic cylinder leakage of oil and fluid compression so that positioning precision is difficult to ensure that.
Summary of the invention
The invention aims to provide a kind of heavy duty coordinating the existing large-sized gantry formula milling-boring machine of heavy industry enterprise and floor type boring and milling machine cutting positioner, it is possible to reach that bearing capacity is big, positioning precision is high, rigidity is big and the requirement of strong shock resistance.
The present invention is achieved through the following technical solutions: a kind of grand micro-Dual Drive heavy duty cutting positioner, including table surface, base, the left and right pillar being fixed on base, table surface switching mechanism, the fine motion sections in series of the interior flip body that described table surface switching mechanism is driven by grand dynamic part and two leading screws of the outer flip body of two Driven by Hydraulic Cylinder forms; Outer flip body is arranged on outside column by bearing, outer flip body is provided with detent mechanism, hydraulic cylinder two ends are separately mounted on base and outer flip body, drive outer flip body to carry out quick wide-angle upset relative to base, it is achieved the grand tune of using force of table surface flip angle; Interior flip body is arranged in the middle of column by bearing, its trip shaft is concentric with the trip shaft of outer flip body, leading screw is fixed on outer flip body, feed screw nut is arranged on interior flip body, in leading screw drives, flip body carries out low-angle upset relative to outer flip body, it is achieved the fine motion accurate adjustment of table surface flip angle; Table surface is arranged on interior flip body, torque motor driven by gear and gear ring.
Outer flip body detent mechanism of the present invention includes the location dish being arranged on outer flip body and the compression hydraulic cylinder being arranged on base, by the locking of location dish realizes the location of outer flip body.
The drive motor of leading screw of the present invention is built-in with brake, and after arriving the operating angle of table surface, leading screw is locked by this built-in brake, completes the flip-flop movement of workbench.
Feed screw nut of the present invention is arranged on interior flip body by swinging block and bearing, can swing on interior flip body; Described leading screw is arranged on outer flip body by connecting cross beam and 4 groups of heavy duty linear slide rails, and connecting cross beam can move along linear slide rail, and to ensure that rectilinear motion can be converted to rotary motion by leading screw, in driving, flip body rotates.
Grand dynamic part of the present invention is opened loop control.
Fine motion part of the present invention is closed loop control, and described closed loop control is completed by rotary encoder, and rotary encoder is arranged on column, is connected with the interior axle of interior flip body by detecting axle.
The table surface flip-flop movement of the present invention is driven the fine motion of interior flip body to overturn series connection synthesis by grand dynamic upset and the leading screw of the outer flip body of Driven by Hydraulic Cylinder, and is graded movement; The outer flip body of grand dynamic part is driven by double hydraulic cylinder, and upset terminates, two groups of compression hydraulic cylinder location dish is clamped, it is achieved the position of outer flip body is fixed, and hydraulic cylinder is not involved in final support; Behind outer flip body location, fine motion part begins turning, and interior flip body is driven by double lead-screw and carries out accurate low-angle upset, after upset terminates, drives the built-in brake of torque motor of leading screw by leading screw locking, it is achieved the final flip angle location of table surface.
Reliability of the present invention is high, machining accuracy and working (machining) efficiency are prone to ensure, its flip angle ranges for 0 °～70 °, final positioning precision is only dependent upon fine motion part, positioning precision is up to 8 ", it is possible to coordinate the existing large-sized gantry formula milling-boring machine of heavy industry enterprise and floor type boring and milling machine to complete the Precision Machining task of heavy parts.
Advantages of the present invention is as follows:
(1) grand the moving of Driven by Hydraulic Cylinder is partially completed more than the 95% of target flip angle degree, the feature that compared to leading screw, hydraulic cylinder has that thrust is big, speed fast, stable movement, abrasion are little, therefore adopt the grand dynamic part of Driven by Hydraulic Cylinder can improve working (machining) efficiency, reduce actuator abrasion.
(2) utilizing leading screw to carry out angle adjustment, the final orientation angle of table surface is only dependent upon fine motion part, can avoid the problem that the positioning precision that causes because of hydraulic cylinder leakage of oil, fluid compression etc. is relatively low.
(3) grand dynamic part and fine motion part are serial graded motions. Hydraulic cylinder only carries out the driving of grand dynamic upset, and outer flip body in-position rear fixture is by its locking, and hydraulic cylinder is also not involved in final support, therefore avoids the situation of fluid compression under heavy duty; Leading screw only carries out angle adjustment and avoids the problem of the deformation that leading screw causes because stroke is long, and reduces the rate of wear of feed screw nut.
(4) leading screw thrust direction is generally along the tangential direction of flip-flop movement, reduces the radial force of leading screw and the power of drive motor.
Accompanying drawing explanation
Fig. 1 is present configuration front view.
Fig. 2 is present configuration right view.
Fig. 3 is the grand dynamic part-structure figure of the present invention.
Fig. 4 is the outer flip body installation diagram of the present invention.
Fig. 5 is the fine motion part-structure figure of the present invention.
Fig. 6 is the leading screw installation diagram of the present invention.
Fig. 7 is the interior flip body installation diagram of the present invention.
Fig. 8 is the grand dynamic componental movement schematic diagram of the present invention.
Fig. 9 is the fine motion componental movement schematic diagram of the present invention.
In figure: flip body in 1-; The outer flip body of 2-; 3-leading screw; 4-torque motor; 5-drives hydraulic cylinder; 6-compression hydraulic cylinder; 7-column; 8-base; 9-location dish; 10-torque motor; 11-bull gear; 12-gear; 13-table surface; 14-outer shaft; 15-Biserial cylindrical roller bearing; 16-connecting cross beam; 17-heavy duty linear slide rail; 18-rotary encoder; Axle in 19-; 20-Biserial cylindrical roller bearing; 21-taper roll bearing; 22-detects axle; 23-feed screw nut; 24-swinging block; 25-cylinder roller bearing; L1-hydraulic cylinder initial length; L2-hydraulic cylinder terminates length;θ-angle on target; Y-screw travel; D-linear slide rail stroke; α-difference angle.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of embodiments of the invention.
Referring to Fig. 1 and Fig. 2, the column 7 of the grand micro-Dual Drive heavy duty cutting positioner of the present invention is fixed on positioner base 8, outer flip body 2 is installed on column with interior flip body 1 and rotating shaft is concentric, and hydraulic cylinder 5 drives outer flip body to rotate, and leading screw 3 drives interior flip body to rotate; Table surface 13 is arranged on interior flip body, torque motor 10 driven by gear 12 and bull gear 11.
Referring to Fig. 3 and Fig. 4, the grand dynamic part-structure of the present invention, its outer flip body 2 is U-shaped, is arranged on the outer shaft 14 of column 7 by a pair Biserial cylindrical roller bearing 15, and installation place is positioned at outside column; Hydraulic cylinder 5 two ends are separately mounted on base 8 and outer flip body, drive outer flip body to overturn around outer shaft; Location dish 9 is arranged on outer flip body, and compression hydraulic cylinder 6 is arranged on base, by the locking of location dish realizes the location of outer flip body.
Referring to Fig. 5～Fig. 7, the fine motion part-structure of the present invention, in it, flip body 1 is arranged on inside column by a pair taper roll bearing 21 and a pair Biserial cylindrical roller bearing 20, interior axle 19 is concentric with outer shaft 14, feed screw nut 23 is arranged on swinging block 24, swinging block is arranged on interior flip body by cylinder roller bearing 25, can swing on interior flip body; Leading screw 3 is arranged on connecting cross beam 16; Connecting cross beam is arranged on outer flip body 2 by 4 groups of heavy duty linear slide rails 17, and connecting cross beam can move along linear slide rail, and to ensure that rectilinear motion can be converted to rotary motion by leading screw, in driving, flip body rotates; Rotary encoder 18 is arranged on column, and detection axle 22 one end is affixed with the interior axle 19 of interior flip body, and the other end is arranged in rotary encoder, and encoder only detects the flip angle of interior flip body.
Fig. 8 and Fig. 9 illustrates the quick grand dynamic part of the present invention and the motion principle figure of accurate fine motion part. Hydraulic cylinder drives outer flip body to carry out quick wide-angle upset with angle on target θ, and hydraulic cylinder travel is L2-L1; In leading screw drives with difference angle [alpha], flip body carries out accurate low-angle location, and screw travel is Y, and linear slide rail stroke is D.
The practical work process of the present invention is as follows:
As shown in Fig. 1～Fig. 9, during real work, hydraulic cylinder 5 is by opened loop control, and first driving turns up turns and 2 carry out quickly big stroke upset with angle on target θ, and when upset stops, compression hydraulic cylinder 6 is by location dish 9 locking, and outer flip body position is fixed; Owing to hydraulic cylinder has oil leakage phenomenon and the lower fluid of heavy duty to have compression, now rotary encoder 18 detects the flip angle of interior flip body 1, can obtain the small difference angle relative to angle on target; Then, leading screw 3 drives interior flip body to overturn with difference angle [alpha], and leading screw drives process to be closed loop control, after interior flip body low-angle accurately overturns arrival angle on target, drives the built-in brake of torque motor 4 of leading screw by leading screw locking, and flip-flop movement terminates; Gyration is driven by gear 12 and bull gear 11 by two torque motors 10; The final positioning precision of workbench is only dependent upon fine motion part, and positioning precision is up to 8 ".
Claims (7)
1. grand micro-Dual Drive heavy duty cutting positioner, including table surface, base, the left and right pillar being fixed on base, table surface switching mechanism, it is characterized in that, the fine motion sections in series of the interior flip body that described table surface switching mechanism is driven by grand dynamic part and two leading screws of the outer flip body of two Driven by Hydraulic Cylinder forms; Described outer flip body is arranged on outside column by bearing, outer flip body is provided with detent mechanism, hydraulic cylinder two ends are separately mounted on base and outer flip body, drive outer flip body to carry out quick wide-angle upset relative to base, it is achieved the grand tune of using force of table surface flip angle; Described interior flip body is arranged in the middle of column by bearing, its trip shaft is concentric with the trip shaft of outer flip body, leading screw is fixed on outer flip body, feed screw nut is arranged on interior flip body, in leading screw drives, flip body carries out low-angle upset relative to outer flip body, it is achieved the fine motion accurate adjustment of table surface flip angle; Described table surface is arranged on interior flip body, torque motor driven by gear and gear ring.
2. grand micro-Dual Drive heavy duty according to claim 1 cutting positioner, it is characterized in that, described outer flip body detent mechanism includes the location dish being arranged on outer flip body and the compression hydraulic cylinder being arranged on base, by the locking of location dish realizes the location of outer flip body.
3. grand micro-Dual Drive heavy duty according to claim 1 cutting positioner, it is characterised in that the drive motor of described leading screw is built-in with brake.
4. grand micro-Dual Drive heavy duty according to claim 1 cutting positioner, it is characterised in that described feed screw nut is arranged on interior flip body by swinging block and bearing, can swing on interior flip body; Described leading screw is arranged on outer flip body by connecting cross beam and 4 groups of heavy duty linear slide rails, and connecting cross beam can move along linear slide rail.
5. grand micro-Dual Drive heavy duty according to claim 1 cutting positioner, it is characterised in that described grand dynamic part is opened loop control.
6. grand micro-Dual Drive heavy duty according to claim 1 cutting positioner, it is characterised in that described fine motion part is closed loop control.
7. grand micro-Dual Drive heavy duty according to claim 6 cutting positioner, it is characterised in that described closed loop control is completed by rotary encoder, and rotary encoder is arranged on column, is connected with the interior axle of interior flip body by detecting axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326178.5A CN104175133B (en) | 2014-07-10 | 2014-07-10 | Grand micro-Dual Drive heavy duty cutting positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326178.5A CN104175133B (en) | 2014-07-10 | 2014-07-10 | Grand micro-Dual Drive heavy duty cutting positioner |
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| Publication Number | Publication Date |
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| CN104175133A CN104175133A (en) | 2014-12-03 |
| CN104175133B true CN104175133B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410326178.5A Expired - Fee Related CN104175133B (en) | 2014-07-10 | 2014-07-10 | Grand micro-Dual Drive heavy duty cutting positioner |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625771A (en) * | 2014-12-26 | 2015-05-20 | 燕山大学 | Precise dual-driving heavy-load cutting dislodgement machine |
| CN107214565B (en) * | 2016-03-22 | 2024-07-05 | 北京蓝新特科技股份公司 | Universal fixture machine tool |
| CN110919281B (en) * | 2019-11-28 | 2023-04-14 | 中建钢构工程有限公司 | Steel member stands up device that shifts |
| CN113211397A (en) * | 2021-05-10 | 2021-08-06 | 江苏信息职业技术学院 | Automatic numerical control rotary worktable that overturns of double-screw drive |
| CN113770456A (en) * | 2021-09-09 | 2021-12-10 | 宜昌长机科技有限责任公司 | Mechanism and method capable of quickly and accurately adjusting turnover angle of gear shaping machine workbench |
| CN114589327B (en) * | 2022-03-01 | 2023-04-07 | 徐州新兴达克罗科技有限公司 | Machining device for mechanical parts based on curved surface gravity rotation type |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236602A (en) * | 1986-04-04 | 1987-10-16 | Koichiro Kitamura | Machine tool |
| KR100643709B1 (en) * | 2005-01-26 | 2006-11-10 | (주)우미정보기술 | 3D modeling machine |
| CN101862967B (en) * | 2010-07-14 | 2011-08-31 | 上海交通大学 | Dual-drive dual-screw rod positioner |
| CN102922286B (en) * | 2012-09-18 | 2015-04-15 | 北京理工大学 | Macro-micro combined precision micro composite machining tool |
| CN203045408U (en) * | 2013-01-24 | 2013-07-10 | 无锡市陆生机械设备有限公司 | Positioner |
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