CN104175133A - Macro-micro dual-drive heavy-load cutting position changing machine - Google Patents
Macro-micro dual-drive heavy-load cutting position changing machine Download PDFInfo
- Publication number
- CN104175133A CN104175133A CN201410326178.5A CN201410326178A CN104175133A CN 104175133 A CN104175133 A CN 104175133A CN 201410326178 A CN201410326178 A CN 201410326178A CN 104175133 A CN104175133 A CN 104175133A
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- flip body
- overturning
- angle
- interior
- heavy duty
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a macro-micro dual-drive heavy-load cutting position changing machine. The macro-micro dual-drive heavy-load cutting position changing machine is characterized in that a platform-surface overturning mechanism of a working platform consists of a macromotion part of an outer overturning body and a micromotion part of an inner overturning body which are connected in series; the macromotion part is driven by two hydraulic cylinders; the micromotion part is driven by two lead screws; the outer overturning body is arranged at the outer side of a vertical column by a bearing; the two ends of the hydraulic cylinders are respectively arranged on a base and the outer turning body; the outer overturning body is driven to carry out fast and large-angle overturning relative to the base so as to realize macromotion rough adjustment of the platform-surface overturning angle of the working platform; the inner overturning body is arranged at the middle part of the vertical column, an overturning shaft of the inner overturning body is concentric to an overturning shaft of the outer overturning body; the lead screws are fixed on the outer overturning body; lead screw nuts are arranged on the inner overturning body; the lead screws drive the inner overturning body to carry out small-angle overturning relative to the outer overturning body so as to realize micromotion fine adjustment of the platform-surface overturning angle of the working platform; and the platform surface of the working platform is arranged on the inner overturning body and is driven by a torque motor through a gear and a gear ring. The macro-micro dual-drive heavy-load cutting position changing machine disclosed by the invention has the beneficial effects that the range of the overturning angle is 0-70 degrees and the positioning accuracy can be 8''.
Description
Technical field
The present invention relates to a kind of positioner in heavy process equipment field, particularly a kind of workbench is by the heavy duty cutting positioner of hydraulic cylinder and leading screw tandem drive.
Background technology
Aspect the machining of heavy vessel, it is high that heavy boring-milling center has machining accuracy, the feature of reliable in quality, but equipment manufacturing cost is extremely expensive, and high-end product needs import conventionally.Heavy duty cutting positioner can coordinate heavy industry enterprise existing large-sized gantry formula milling-boring machine 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 significantly reduce manufacturing cost.
What processing heavy parts was the most difficult is to process moving and relocating of different inter process workpiece, and traditional mode needs first workpiece to be hung away with overhead traveling crane, then adjusts fixture postures, then workpiece is hung back to installation, and precision is difficult to guarantee like this.Machining is mainly used in the Precision Machining of workpiece with automatic position changer, should there is high positioning precision and locating stiffness, reliable position maintenance lock ability and impact resistance, for ease of coordinate and keep machine tool accuracy with lathe, height dimension is had to strict restriction simultaneously.
Current heavily loaded positioner mainly contains 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 has been recorded a kind of " dual-drive dual-screw rod positioner ", this technology comprises: 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 comprises: 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, easily causes strut buckling or distortion under heavy duty, and this positioner leading screw free end is downward, need in positioner fabricating yard, dig dell leading screw free end is put into, and uses comparatively inconvenience.
Chinese Patent Application No. 201110099408.5 has been recorded a kind of " hybrid-drive heavy-load two-degree-of-freedom positioner for hydraulic screw rod ", this technology comprises: 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 leading screw drive system are not that series connection is synthetic, but the startup of hydraulic cylinder or stop wanting and location leading screw servomotor keeps synchronous is controlled extremely complicated.This positioner adopts single leading screw to drive angle accurate adjustment part, and bearing capacity is limited, and leading screw stroke comprises Driven by Hydraulic Cylinder stroke, and stroke is grown and need in positioner fabricating yard, be dug dell leading screw free end is put into.This positioner hydraulic-driven part does not rigidly fix after coarse adjustment angle, so table surface final angle affects by the phenomenons such as hydraulic cylinder leakage of oil and fluid compression, makes positioning precision be difficult to guarantee.
Summary of the invention
The object of the invention is to provide a kind of heavy duty cutting positioner that coordinates heavy industry enterprise existing large-sized gantry formula milling-boring machine and floor type boring and milling machine, can reach that bearing capacity is large, positioning precision is high, rigidity is large 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, comprise table surface, base, be fixed on left and right pillar, table surface switching mechanism on base, described table surface switching mechanism is that the fine motion of the interior flip body that driven by the grand moving part of the outer flip body of two Driven by Hydraulic Cylinder and two leading screws is partly composed in series; Outer flip body is arranged on column outside by bearing, outer flip body is provided with detent mechanism, hydraulic cylinder two ends are arranged on respectively on base and outer flip body, drive outer flip body to carry out quick wide-angle upset with respect to base, realize 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 with respect to outer flip body, realizes the fine motion accurate adjustment of table surface flip angle; Table surface is arranged on interior flip body, by torque motor, by gear and gear ring, is driven.
Outer flip body detent mechanism of the present invention comprises the positioning disk being arranged on outer flip body and is arranged on the clamping hydraulic cylinder on base, realizes the location of outer flip body by the locking to positioning disk.
The drive motors of leading screw of the present invention is built-in with brake, arrives after the operating angle of table surface, and this built-in brake is locked leading screw, the flip-flop movement of the platform of finishing the work.
Feed screw nut of the present invention is arranged on interior flip body by swinging block and bearing, can on interior flip body, swing; 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 guarantee that leading screw can be converted to rectilinear motion to rotatablely move, in driving, flip body rotates.
Grand moving part of the present invention is that open loop is controlled.
Fine motion of the present invention is partly closed-loop control, and described closed-loop control is completed by rotary encoder, and rotary encoder is arranged on column, by detecting axle, is connected with the interior axle of interior flip body.
Table surface flip-flop movement of the present invention is synthetic by the grand moving upset of the outer flip body of Driven by Hydraulic Cylinder and the fine motion upset series connection of the interior flip body of leading screw driving, and is graded movement; The outer flip body of grand moving part is driven by double hydraulic cylinder, and upset finishes, and by two groups of clamping hydraulic cylinders, positioning disk is clamped, and realizes the position of outer flip body and fixes, and hydraulic cylinder does not participate in final support; Behind outer flip body location, fine motion partly begins turning, and interior flip body is driven and carried out accurate low-angle upset by double lead-screw, and after upset finishes, the built-in brake of the torque motor of driving leading screw, by leading screw locking, is realized the final flip angle location of table surface.
Reliability of the present invention is high, machining accuracy and working (machining) efficiency are easy to guarantee, its flip angle scope is 0 °～70 °, final positioning precision only depends on fine motion part, positioning precision can reach 8 ", can coordinate heavy industry enterprise existing large-sized gantry formula milling-boring machine and floor type boring and milling machine to complete the Precision Machining task of heavy parts.
Advantage of the present invention is as follows:
(1) the grand moving part of Driven by Hydraulic Cylinder completes the more than 95% of target flip angle degree, hydraulic cylinder than leading screw have that thrust is large, speed is fast, motion steadily, the little feature of wearing and tearing, therefore adopt the grand moving part of Driven by Hydraulic Cylinder can improve working (machining) efficiency, reduce actuator wearing and tearing.
(2) utilize leading screw to carry out angle fine setting, the final orientation angle of table surface only depends on fine motion part, can avoid the lower problem of positioning precision causing because of hydraulic cylinder leakage of oil, fluid compression etc.
(3) grand moving part is partly serial graded motion with fine motion.Hydraulic cylinder only carries out the driving of grand moving upset, and outer flip body in-position rear fixture is by its locking, and hydraulic cylinder does not participate in final support, has therefore avoided the situation of heavily loaded lower fluid compression; Leading screw only carries out the problem that the distortion that leading screw causes because stroke is long has been avoided in angle fine setting, and has reduced the rate of wear of feed screw nut.
(4) leading screw thrust direction, substantially along the tangential direction of flip-flop movement, has reduced the radial force of leading screw and the power of drive motors.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention.
Fig. 2 is structure right view of the present invention.
Fig. 3 is grand moving part-structure figure of the present invention.
Fig. 4 is outer flip body installation diagram of the present invention.
Fig. 5 is fine motion part-structure figure of the present invention.
Fig. 6 is leading screw installation diagram of the present invention.
Fig. 7 is interior flip body installation diagram of the present invention.
Fig. 8 is grand moving componental movement schematic diagram of the present invention.
Fig. 9 is 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-clamping hydraulic cylinder; 7-column; 8-base; 9-positioning disk; 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 stops length; θ-angle on target; Y-leading screw stroke; D-linear slide rail stroke; α-difference angle.
The specific embodiment
Below, 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 be installed on column with interior flip body 1 and rotating shaft concentric, hydraulic cylinder 5 drives outer flip body to rotate, flip body rotation in leading screw 3 drives; Table surface 13 is arranged on interior flip body, by torque motor 10, by gear 12 and bull gear 11, is driven.
Referring to Fig. 3 and Fig. 4, grand moving 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 of Biserial cylindrical roller bearing 15, and installation place is positioned at column outside; Hydraulic cylinder 5 two ends are arranged on respectively on base 8 and outer flip body, drive outer flip body to overturn around outer shaft; Positioning disk 9 is arranged on outer flip body, and clamping hydraulic cylinder 6 is arranged on base, realizes the location of outer flip body by the locking to positioning disk.
Referring to Fig. 5～Fig. 7, fine motion part-structure of the present invention, in it, flip body 1 is arranged on column inner side by a pair of taper roll bearing 21 and a pair of 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 on interior flip body, swing; 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 guarantee that leading screw can be converted to rectilinear motion to rotatablely move, in driving, flip body rotates; Rotary encoder 18 is arranged on column, and the interior axle 19 that detects axle 22 one end and interior flip body is affixed, 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 illustrate the motion principle figure of grand moving part fast of the present invention and 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 leading screw stroke is Y, and linear slide rail stroke is D.
Practical work process of the present invention is as follows:
As shown in Fig. 1～Fig. 9, during real work, hydraulic cylinder 5 is controlled by open loop, and first driving turns up turns and 2 with angle on target θ, carry out fast large stroke upset, and when upset stops, clamping hydraulic cylinder 6 is by positioning disk 9 lockings, and outer flip body position is fixed; Because hydraulic cylinder has oil leakage phenomenon and the lower fluid of heavy duty, have compression, now rotary encoder 18 detects the flip angle of interior flip body 1, can obtain the small difference angle with respect to angle on target; Then, in leading screw 3 drives, flip body overturns with difference angle [alpha], and leading screw driving process is closed-loop control, and interior flip body low-angle accurately overturns and arrives after angle on target, drives the built-in brake of the torque motor 4 of leading screw by leading screw locking, and flip-flop movement finishes; Gyration is driven by gear 12 and bull gear 11 by two torque motors 10; The final positioning precision of workbench only depends on fine motion part, and positioning precision can reach 8 ".
Claims (7)
1. positioner is cut in a grand micro-Dual Drive heavy duty, comprise table surface, base, be fixed on left and right pillar, table surface switching mechanism on base, it is characterized in that, described table surface switching mechanism is that the fine motion of the interior flip body that driven by the grand moving part of the outer flip body of two Driven by Hydraulic Cylinder and two leading screws is partly composed in series; Described outer flip body is arranged on column outside by bearing, outer flip body is provided with detent mechanism, hydraulic cylinder two ends are arranged on respectively on base and outer flip body, drive outer flip body to carry out quick wide-angle upset with respect to base, realize 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 with respect to outer flip body, realizes the fine motion accurate adjustment of table surface flip angle; Described table surface is arranged on interior flip body, by torque motor, by gear and gear ring, is driven.
2. positioner is cut in grand micro-Dual Drive heavy duty according to claim 1, it is characterized in that, described outer flip body detent mechanism comprises the positioning disk being arranged on outer flip body and is arranged on the clamping hydraulic cylinder on base, realizes the location of outer flip body by the locking to positioning disk.
3. grand micro-Dual Drive heavy duty cutting positioner according to claim 1, is characterized in that, the drive motors of described leading screw is built-in with brake.
4. grand micro-Dual Drive heavy duty cutting positioner according to claim 1, is characterized in that, described feed screw nut is arranged on interior flip body by swinging block and bearing, can on interior flip body, swing; 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 cutting positioner according to claim 1, is characterized in that, described grand moving part is that open loop is controlled.
6. grand micro-Dual Drive heavy duty cutting positioner according to claim 1, is characterized in that, described fine motion is partly closed-loop control.
7. grand micro-Dual Drive heavy duty cutting positioner according to claim 6, is characterized in that, described closed-loop control is completed by rotary encoder, and rotary encoder is arranged on column, by detecting axle, is connected with the interior axle of interior flip body.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN104175133A true CN104175133A (en) | 2014-12-03 |
| CN104175133B 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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Cited By (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 |
| CN107214565A (en) * | 2016-03-22 | 2017-09-29 | 北京蓝新特科技股份公司 | Universal chuck lathe |
| CN110919281A (en) * | 2019-11-28 | 2020-03-27 | 中建钢构有限公司 | 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 |
| CN114589327A (en) * | 2022-03-01 | 2022-06-07 | 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 |
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| JPS62236602A (en) * | 1986-04-04 | 1987-10-16 | Koichiro Kitamura | Machine tool |
| KR20060086094A (en) * | 2005-01-26 | 2006-07-31 | (주)우미정보기술 | 3D modeling machine |
| CN101862967A (en) * | 2010-07-14 | 2010-10-20 | 上海交通大学 | Dual-drive dual-screw rod positioner |
| CN102922286A (en) * | 2012-09-18 | 2013-02-13 | 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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2014
- 2014-07-10 CN CN201410326178.5A patent/CN104175133B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236602A (en) * | 1986-04-04 | 1987-10-16 | Koichiro Kitamura | Machine tool |
| KR20060086094A (en) * | 2005-01-26 | 2006-07-31 | (주)우미정보기술 | 3D modeling machine |
| CN101862967A (en) * | 2010-07-14 | 2010-10-20 | 上海交通大学 | Dual-drive dual-screw rod positioner |
| CN102922286A (en) * | 2012-09-18 | 2013-02-13 | 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 |
Cited By (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 |
| CN107214565A (en) * | 2016-03-22 | 2017-09-29 | 北京蓝新特科技股份公司 | Universal chuck lathe |
| CN110919281A (en) * | 2019-11-28 | 2020-03-27 | 中建钢构有限公司 | 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 |
| CN114589327A (en) * | 2022-03-01 | 2022-06-07 | 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 |
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| CN104175133B (en) | 2016-06-15 |
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