CN2451287Y - Five-coordinate digital control machine tool based on free paralleling mechanism - Google Patents

Five-coordinate digital control machine tool based on free paralleling mechanism Download PDF

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Publication number
CN2451287Y
CN2451287Y CN 00253255 CN00253255U CN2451287Y CN 2451287 Y CN2451287 Y CN 2451287Y CN 00253255 CN00253255 CN 00253255 CN 00253255 U CN00253255 U CN 00253255U CN 2451287 Y CN2451287 Y CN 2451287Y
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CN
China
Prior art keywords
freedom parallel
workbench
guide rail
machine tool
slideway
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Expired - Fee Related
Application number
CN 00253255
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Chinese (zh)
Inventor
赵明阳
房立金
徐志刚
王洪光
陈书宏
陈文家
曲艳丽
张波
李燕
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Shenyang Institute of Automation of CAS
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Shenyang Institute of Automation of CAS
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Priority to CN 00253255 priority Critical patent/CN2451287Y/en
Application granted granted Critical
Publication of CN2451287Y publication Critical patent/CN2451287Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a five-coordinate digital control machine tool based on a three degree of freedom paralleling mechanism, composed of a three degree of freedom paralleling mechanism, a frame of a gantry crane and a workbench which is installed on a bed body, wherein, the three degree of freedom paralleling mechanism is installed on the frame of a gantry crane through a slideway, and composed of a three transmission rods, a motion platform which is provided with a main shaft of a cutter, guide rails, etc. One end of the transmission rods is installed on the motion platform through a spherical hinge. The other end of the transmission rods is connected with slide blocks through a rotary pair. The slide blocks are respectively installed on the guide rails. One end of each of the guide rails is respectively and obliquely installed on a fixed platform. The other end of each of the guide rails is mutually and fixedly connected together. The slideway is arranged in the direction of an X shaft between the workbench and the bed body. The utility model has the advantages of simple structure, high micromotion precision and big operating space.

Description

Five-coordinate numerally controlled machine tool based on 3-freedom parallel mechanism
The utility model relates to a kind of machinery manufacturing industry process equipment, specifically is based on the five-coordinate numerally controlled machine tool of 3-freedom parallel mechanism.
Existing lathe, series is complete, various in style.Its structure mainly is made up of lathe bed, column, guide rail and crossbeam etc., mostly is cascaded structure.The shortcoming of this class lathe is that mechanism's heaviness, parts are many, transmission chain length, bulky, complex structure, involve great expense, and shows on the gang tool especially.The lathe each several part is stressed, thermal deformation is inhomogeneous, and the effect of tensile, compressive, bending in process, torsion and moment makes lathe produce vibration, and the result causes machining accuracy to reduce.In addition, parts are heavy, volume is big, limited the raising of cutting process medium velocity and acceleration.Since the nineties, some research institutions have released the parallel machine that utilizes parallel institution merely both at home and abroad, but its working space is less, has limited its application.
For solving above-mentioned deficiency, it is flexible that the purpose of the utility model provides a kind of mechanism, simple in structure, fine motion precision height, the big five-coordinate numerally controlled machine tool in operating space based on 3-freedom parallel mechanism, it can realize the processing to complex profile and various abnormal curved surfaces, also can be used as the multi-coordinate measuring machine and uses.
The purpose of this utility model is achieved in that it comprises lathe bed, by 3-freedom parallel mechanism, gantry frame, the workbench that is installed on the lathe bed is formed, wherein 3-freedom parallel mechanism is installed on the gantry frame by slideway, by three drive links, motion platform, slide block, guide rail, fixed platform is formed, described drive link one end is installed on the motion platform by ball pivot, the other end links to each other with slide block by revolute pair, slide block is installed on the guide rail respectively, guide rail one end tilts to install with fixed platform respectively, the other end is fixed together mutually, and described motion platform is provided with cutter spindle; Be provided with slideway in X-direction between described workbench and the lathe bed;
In addition, described slide block is connected with linear electric motors, or is connected by the rotating electric machine of nut with the band ball-screw; Described guide rail can vertically be installed with fixed platform; Slide rail can be annular between described workbench and lathe bed.
The utility model except simple in structure, cost is low, volume also has following advantage little:
1. machining accuracy height.The utility model utilizes 3-freedom parallel mechanism to realize that A, B double pendulum and the Z of cutter spindle are to moving its tooling system rigidity height, strong, the fine motion precision height of load capacity;
2. the operating space is big.The utility model is separated the Y-axis in-movement and the X-axis front and back feed motion of cutter spindle from motion platform, respectively by 3-freedom parallel mechanism on gantry frame move back and forth and the reciprocating motion of workbench realizes, expanded the working space of lathe, make handiness, clamping flexible simultaneously, can realize five dimension operations;
3. applied range.The utility model is strong to the adaptability of workpiece, and its processing object can be that the plane also can be a curved surface, can realize milling, processes such as brill, mill, polishing, also can be used as the multi-coordinate measuring machine and uses.
Fig. 1 is the utility model structural representation;
Fig. 2 is another example structure schematic diagram of the utility model;
Fig. 3 is the 3rd example structure schematic diagram of the utility model;
Fig. 4 is the 4th example structure schematic diagram of the utility model;
Fig. 5 is the coordinate direction figure of the utility model operation principle.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Embodiment 1:
As Fig. 1, shown in 5, be the five-coordinate numerally controlled machine tool structural representation of the utility model based on 3-freedom parallel mechanism, by 3-freedom parallel mechanism 1, gantry frame 2, the workbench 3 that is installed on the lathe bed 4 is formed, wherein 3-freedom parallel mechanism 1 is installed on gantry frame 2 entablatures by slideway, by three drive links 12, motion platform 14, slide block 16, guide rail 17, fixed platform 18 is formed, described drive link 12 1 ends are installed on the motion platform 14 by ball pivot 13, the other end links to each other with slide block 16 by revolute pair, slide block 16 is installed in respectively on the guide rail 17, guide rail 17 1 ends tilt to install respectively with in the motion platform 14, the other end is fixed together mutually, three guide rail 17 junctions form a plane, and described motion platform 14 is provided with cutter spindle 15; Be provided with slideway in X-direction between described workbench 3 and the lathe bed 4, workbench 3 is done horizontal movement on X-direction along slideway; Described slide block 16 is connected with linear electric motors.
Its operation principle is:
As shown in Figure 5, the slide block 16 that is driven by linear electric motors moves on guide rail 17, and slide block 16 drives each drive link 12; Motion platform 14 obtains two rotational freedoms and an one-movement-freedom-degree under the driving of each drive link 12, promptly around rotational freedom A, the B of X-axis and Y-axis and along the upper and lower one-movement-freedom-degree of Z axle.3-freedom parallel mechanism 1 is installed on gantry frame 2 crossbeams by slideway, it can make traverse motion at Y direction upper edge crossbeam slideway under motor-driven, workpiece to be machined is fixed in and can does on the workbench 3 of front-rear reciprocation movement in driven by servomotor lower edge X-direction, cutter spindle is fixedly mounted on the motion platform 14 of 3-freedom parallel mechanism 1, thereby realize that (X-axis moves cutter spindle relative to five coordinate feed motions of workpiece, y-axis shift is moving, the Z axle moves, the A axle rotates, and the B axle rotates).
Embodiment 2:
As shown in Figure 2, the utility model difference from Example 1 is: the slide rail that described workbench 3 and lathe bed are 4 is annular, workbench 3 rotates on bed piece 4, so workbench 3 usefulness have replaced moving back and forth along the front and back of X-direction around rotatablely moving of Z-direction, thereby realize cutter spindle (workpiece relatively) work five coordinate motions, that is: y-axis shift is moving, the Z axle moves, the A axle rotates, and the B axle rotates, and the C axle rotates.
Embodiment 3:
As shown in Figure 3, the utility model difference from Example 1 is: described 3-freedom parallel mechanism 1 is installed on gantry frame 2 side uprights by slideway, guide rail 17 described in the utility model also can with fixed platform 18 vertical installations, drive link 12 links to each other with slide block 16 with guide rail 17 inboards; Described slide block 16 is connected by the rotating electric machine of nut with the band ball-screw.
Embodiment 4
As shown in Figure 4, difference from Example 3 is: the slide rail that described workbench 3 and lathe bed are 4 is annular, and workbench 3 rotates on bed piece 4.
Guide rail 17 described in the utility model also can with fixed platform 18 vertical installations, drive link 12 links to each other with slide block 16 with guide rail 17 inboards.

Claims (5)

1. five-coordinate numerally controlled machine tool based on 3-freedom parallel mechanism, comprise lathe bed, it is characterized in that: by 3-freedom parallel mechanism (1), gantry frame (2), the workbench (3) that is installed on the lathe bed (4) is formed, wherein 3-freedom parallel mechanism (1) is installed on the gantry frame (2) by slideway, by three drive links (12), motion platform (14), slide block (16), guide rail (17), fixed platform (18) is formed, described drive link (12) one ends are installed on the motion platform (14) by ball pivot (13), the other end links to each other with slide block (16) by revolute pair, slide block (16) is installed in respectively on the guide rail (17), guide rail (17) one ends tilt to install with fixed platform (18) respectively, the other end is fixed together mutually, and described motion platform (14) is provided with cutter spindle (15); Be provided with slideway in X-direction between described workbench (12) and the lathe bed (4).
2. according to the described five-coordinate numerally controlled machine tool based on 3-freedom parallel mechanism of claim 1, it is characterized in that: described 3-freedom parallel mechanism (1) is installed on gantry frame (2) entablature or the side uprights by slideway.
3. according to the described five-coordinate numerally controlled machine tool based on 3-freedom parallel mechanism of claim 1, it is characterized in that: described slide block (16) is connected with linear electric motors, or is connected by the rotating electric machine of nut with the band ball-screw.
4. according to claim 1,2 or 3 described five-coordinate numerally controlled machine tools, it is characterized in that: described guide rail (17) and the vertical installation of fixed platform (18) based on 3-freedom parallel mechanism.
5. according to claim 1,2 or 3 described five-coordinate numerally controlled machine tools based on 3-freedom parallel mechanism, it is characterized in that: slide rail is annular between described workbench (3) and lathe bed (4).
CN 00253255 2000-11-29 2000-11-29 Five-coordinate digital control machine tool based on free paralleling mechanism Expired - Fee Related CN2451287Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00253255 CN2451287Y (en) 2000-11-29 2000-11-29 Five-coordinate digital control machine tool based on free paralleling mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00253255 CN2451287Y (en) 2000-11-29 2000-11-29 Five-coordinate digital control machine tool based on free paralleling mechanism

Publications (1)

Publication Number Publication Date
CN2451287Y true CN2451287Y (en) 2001-10-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358302A (en) * 2013-06-21 2013-10-23 燕山大学 Redundant drive symmetric three degree-of-freedom mobile parallel mechanism
CN104344987A (en) * 2014-10-16 2015-02-11 北京航空航天大学 Pulling, bending and twisting material loading testing machine
CN106132645A (en) * 2014-04-02 2016-11-16 Ao沙理诺克斯公司 The device with blade for converted products
CN108972620A (en) * 2018-07-24 2018-12-11 安徽省勤业科技服务有限公司 A kind of industrial robot positioning measuring device
CN109719523A (en) * 2017-10-31 2019-05-07 香港理工大学深圳研究院 Numerically-controlled machine tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358302A (en) * 2013-06-21 2013-10-23 燕山大学 Redundant drive symmetric three degree-of-freedom mobile parallel mechanism
CN106132645A (en) * 2014-04-02 2016-11-16 Ao沙理诺克斯公司 The device with blade for converted products
CN104344987A (en) * 2014-10-16 2015-02-11 北京航空航天大学 Pulling, bending and twisting material loading testing machine
CN104344987B (en) * 2014-10-16 2017-02-08 北京航空航天大学 Pulling, bending and twisting material loading testing machine
CN109719523A (en) * 2017-10-31 2019-05-07 香港理工大学深圳研究院 Numerically-controlled machine tool
CN108972620A (en) * 2018-07-24 2018-12-11 安徽省勤业科技服务有限公司 A kind of industrial robot positioning measuring device

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C19 Lapse of patent right due to non-payment of the annual fee
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