CN209077809U - A kind of five degree of freedom fast servo tool micromotion platform - Google Patents

A kind of five degree of freedom fast servo tool micromotion platform Download PDF

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Publication number
CN209077809U
CN209077809U CN201821605386.9U CN201821605386U CN209077809U CN 209077809 U CN209077809 U CN 209077809U CN 201821605386 U CN201821605386 U CN 201821605386U CN 209077809 U CN209077809 U CN 209077809U
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piezoelectric ceramic
knife rest
hydraulic cylinder
ceramic actuator
arm
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CN201821605386.9U
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Chinese (zh)
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胡力
李国平
韩同鹏
闵文君
罗展鹏
吕俊智
赖文锋
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Ningbo University
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Ningbo University
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Abstract

The utility model discloses a kind of five degree of freedom fast servo tool micromotion platforms, feature be include pedestal, knife rest and Cutting tool installation manner platform, the first driving mechanism for rotating knife rest around X-axis and the second driving mechanism for rotating knife rest around Y-axis are provided on pedestal, X is fixedly installed on knife rest to piezoelectric ceramic actuator, first Y-direction piezoelectric ceramic actuator and the second Y-direction piezoelectric ceramic actuator, X is to being provided with X to displacement equations hinge between piezoelectric ceramic actuator and Cutting tool installation manner platform, the first Y-direction displacement equations hinge is provided between first Y-direction piezoelectric ceramic actuator and Cutting tool installation manner platform, the second Y-direction displacement equations hinge is provided between second Y-direction piezoelectric ceramic actuator and Cutting tool installation manner platform;Advantage is when moving on the guide rail for the micromotion platform is mounted on lathe Z-direction, so that it may realize the movement of 6 freedom degrees of cutter, and part need to only be mounted on scroll chuck and rotate, so that it may the processing for completing complex curved surface parts improves processing efficiency.

Description

A kind of five degree of freedom fast servo tool micromotion platform
Technical field
The utility model relates to micromotion platform more particularly to a kind of five degree of freedom fast servo tool micromotion platforms.
Background technique
In recent years, the complex curved surface parts with on-circular cross-section and nonaxisymmetric structure are widely used in optical field General, the traditional diamond-making technique of these parts generally uses profile tracer method, electrochemical erosion method, grinding-polishing method etc., but processes Efficiency and machining accuracy are lower, it is difficult to meet production requirement.
Part is processed using CNC processing technology now, the general processing method separated using cutter and part, cutter with Lathe does the movement in tri- directions X, Y, Z, and part rotates on scroll chuck around X-direction, one procedure of every processing, controls X Axis or Y-axis cutter will be fed once back and forth, and when especially processing heavy parts, feed distance is longer, so as to cause part Processing efficiency is lower, and simultaneous processing precision is also difficult to ensure.And when processing complex parts, due to lathe itself freedom degree not It is enough, it is often necessary to which that Multi-axis simultaneous machining is complex-curved, and existing solution is a servo motor and transmission system control one A freedom degree movement, and realize the Machining of Curved Surface of 6 freedom degrees, it is necessary to 6 servo motors and transmission system, this results in machine Bed exploitation and manufacturing cost are higher.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of processing efficiencies that complex curved surface parts can be improved, and The five degree of freedom fast servo tool micromotion platform of the manufacturing cost of lathe can be reduced.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of five degree of freedom fast servo tool Micromotion platform, including pedestal, knife rest and Cutting tool installation manner platform for installing cutter, be provided on the pedestal make it is described The first driving mechanism that knife rest is rotated around X-axis and the second driving mechanism for rotating the knife rest around Y-axis, on the knife rest X is fixedly installed to piezoelectric ceramic actuator, the first Y-direction piezoelectric ceramic actuator and the second Y-direction piezoelectric ceramic actuator, it is described Cutting tool installation manner platform be arranged in the knife rest, the X is to piezoelectric ceramic actuator and the Cutting tool installation manner platform Between be provided with X to displacement equations hinge, the first Y-direction piezoelectric ceramic actuator and the second Y-direction piezoelectric ceramics Driver is staggeredly located out Y-direction, sets between the first Y-direction piezoelectric ceramic actuator and the Cutting tool installation manner platform It is equipped with the first Y-direction displacement equations hinge, is set between the second Y-direction piezoelectric ceramic actuator and the Cutting tool installation manner platform It is equipped with the second Y-direction displacement equations hinge.
Further, first driving mechanism includes first servo motor, the first X to hydraulic cylinder and the 2nd X to liquid Cylinder pressure, the first X are respectively and fixedly installed to opposite two of the pedestal to hydraulic cylinder and the 2nd X to hydraulic cylinder The end of side, piston rod of the first X to hydraulic cylinder is fixedly installed first connecting rod, the first connecting rod and institute The first servo motor stated is fixedly connected, the first servo motor and the pedestal along X to being slidably matched, described Coaxially it is fixedly installed the first spline in the drive shaft of one servo motor, the knife rest is towards the first servo motor Side is provided with the first splined hole for matching with first spline, the knife rest towards the 2nd X to The side of hydraulic cylinder is provided with X to location hole, and the 2nd X protrudes into the X into location hole to the piston rod of hydraulic cylinder.
Further, second driving mechanism includes the second servo motor, the first Y-direction hydraulic cylinder and the second Y-direction liquid Cylinder pressure, the first Y-direction hydraulic cylinder and the second Y-direction hydraulic cylinder are respectively and fixedly installed to opposite two of the pedestal Side, the end of the piston rod of the first Y-direction hydraulic cylinder are fixedly installed the second connecting rod, second connecting rod and institute The second servo motor stated is fixedly connected, and second servo motor is slidably matched with the pedestal along Y-direction, and described Coaxially it is fixedly installed the second spline in the drive shaft of two servo motors, the knife rest is towards second servo motor Side is provided with the second splined hole for matching with second spline, and the knife rest is towards second Y-direction The side of hydraulic cylinder is provided with Y-direction location hole, and the piston rod of the second Y-direction hydraulic cylinder protrudes into the Y-direction location hole.
Further, the X includes the first U-shaped linking arm to displacement equations hinge, the first U-shaped linking arm Both ends pass through flexible hinge and the knife rest integrally connected respectively, and the inner arm of the first U-shaped linking arm passes through flexible hinge Chain and the Cutting tool installation manner platform integrally connected, the X are against the first U-shaped linking arm to piezoelectric ceramic actuator Outer arm on.
Further, the first Y-direction displacement equations hinge includes the second U-shaped linking arm and straight-arm, the first Y It is against to piezoelectric ceramic actuator on the straight-arm, one end of the straight-arm is outer with the second U-shaped linking arm Arm is perpendicular and integrally connected, the outer arm of the second U-shaped linking arm pass through flexible hinge and the knife rest integrally connected, The inner arm of the second U-shaped linking arm passes through flexible hinge and the Cutting tool installation manner platform integrally connected.
Further, the second Y-direction displacement equations hinge includes third U-shaped linking arm, the third U-shaped connection The inner arm of arm passes through flexible hinge and the Cutting tool installation manner platform integrally connected, the second Y-direction piezoelectric ceramic actuator Be against on the outer arm of the third U-shaped linking arm, the open end of the third U-shaped linking arm by flexible hinge with it is described Knife rest integrally connected.
Compared with prior art, the utility model has the advantages that the knife rest micromotion platform itself can realize 5 freedom degree sides To tool motion, including along X, Y-direction move and around X, Y, the rotation of Z-direction, when the micromotion platform is mounted on lathe Z When being moved on the guide rail in direction, so that it may realize the movement of 6 freedom degree directions of cutter, thus realize the 6DOF processing of part, And part need to only be mounted on the scroll chuck of lathe and rotate, so that it may the processing of complex curved surface parts all directions is completed, Improve processing efficiency;And entirely knife rest micromotion platform structure is simple, the servo motor and transmission parts needed is less, is guaranteeing Under the premise of part processing precision, the manufacturing cost and use cost of lathe are reduced.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model;
Fig. 2 is connection schematic diagram of the first servo motor of the utility model with the first X to hydraulic cylinder;
Fig. 3 is the knife rest of the utility model and the connection schematic diagram of Cutting tool installation manner platform.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown, a kind of five degree of freedom fast servo tool micromotion platform, including pedestal 1, knife rest 2 and for installing knife The Cutting tool installation manner platform 3 of tool 100 is provided with the first driving mechanism for rotate knife rest 2 around X-axis on pedestal 1 and makes knife rest 2 around Y Second driving mechanism of axis rotation, the first driving mechanism include first servo motor 4, the first X to hydraulic cylinder 5 and the 2nd X to liquid Cylinder pressure 6, the first X are respectively and fixedly installed to the opposite two sides of pedestal 1 to hydraulic cylinder 5 and the 2nd X to hydraulic cylinder 6, and the first X is to hydraulic The end of the piston rod of cylinder 5 is fixedly installed first connecting rod 51, and first connecting rod 51 is fixedly connected with first servo motor 4, First servo motor 4 with pedestal 1 along X to being slidably matched, be coaxially fixedly installed in the drive shaft of first servo motor 4 first flower Key 41, the side of knife rest 2 towards first servo motor 4 are provided with the first splined hole 21 for matching with the first spline 41, Knife rest 2 is provided with X to location hole (not shown), piston of the 2nd X to hydraulic cylinder 6 towards the 2nd X to the side of hydraulic cylinder 6 Bar protrudes into X into location hole (not shown);Second driving mechanism includes the second servo motor 7,8 and of the first Y-direction hydraulic cylinder Second Y-direction hydraulic cylinder 9, the first Y-direction hydraulic cylinder 8 and the second Y-direction hydraulic cylinder 9 are respectively and fixedly installed to the opposite two sides of pedestal 1, the The end of the piston rod of one Y-direction hydraulic cylinder 8 is fixedly installed the second connecting rod 81, the second connecting rod 81 and the second servo motor 7 It is fixedly connected, the second servo motor 7 is slidably matched with pedestal 1 along Y-direction, and coaxially fixation is set in the drive shaft of the second servo motor 7 It is equipped with the second spline (not shown), the side of knife rest 2 towards the second servo motor 7 is provided with for matching with the second spline The second splined hole 22 closed, the side of knife rest 2 towards the second Y-direction hydraulic cylinder 9 are provided with Y-direction location hole (not shown), the The piston rod of two Y-direction hydraulic cylinders 9 protrudes into Y-direction location hole;
X is fixedly installed on knife rest 2 to piezoelectric ceramic actuator 10, the first Y-direction piezoelectric ceramic actuator 11 and the second Y-direction Piezoelectric ceramic actuator 12, Cutting tool installation manner platform 3 are arranged in knife rest 2, and X is to piezoelectric ceramic actuator 10 and Cutting tool installation manner platform X is provided between 3 to displacement equations hinge, X includes the first U-shaped linking arm 13, the first U-shaped linking arm 13 to displacement equations hinge Both ends pass through flexible hinge 200 and 2 integrally connected of knife rest respectively, the inner arm of the first U-shaped linking arm 13 passes through flexible hinge 200 With 3 integrally connected of Cutting tool installation manner platform, X is against on the outer arm of the first U-shaped linking arm 13 to piezoelectric ceramic actuator 10, the first Y To piezoelectric ceramic actuator 11 and 12 being staggeredly located out in Y-direction of the second Y-direction piezoelectric ceramic actuator, the first Y-direction piezoelectric ceramics The first Y-direction displacement equations hinge is provided between driver 11 and Cutting tool installation manner platform 3, the first Y-direction displacement equations hinge includes Second U-shaped linking arm 14 and straight-arm 15, the first Y-direction piezoelectric ceramic actuator 11 are against on straight-arm 15, one end of straight-arm 15 with The outer arm of second U-shaped linking arm 14 is perpendicular and integrally connected, the outer arm of the second U-shaped linking arm 14 by flexible hinge 200 with 2 integrally connected of knife rest, the inner arm of the second U-shaped linking arm 14 pass through flexible hinge 200 and 3 integrally connected of Cutting tool installation manner platform, the The second Y-direction displacement equations hinge, the displacement of the second Y-direction are provided between two Y-direction piezoelectric ceramic actuators 12 and Cutting tool installation manner platform 3 Amplification hinge includes third U-shaped linking arm 16, and the inner arm of third U-shaped linking arm 16 is flat by flexible hinge 200 and Cutting tool installation manner 3 integrally connected of platform, the second Y-direction piezoelectric ceramic actuator 12 are against on the outer arm of third U-shaped linking arm 16, third U-shaped linking arm 16 open end passes through flexible hinge 200 and 2 integrally connected of knife rest.
In above-described embodiment, which realizes the process of five degree of freedom movement are as follows:
(1), rotate around X-axis: the first X drives first servo motor 4, to moving, to make first along the X of pedestal 1 to hydraulic cylinder 5 The first spline 41 on servo motor 4 is matched with the first splined hole 21 on knife rest 2, and the 2nd X drives piston rod to hydraulic cylinder 6 X is protruded into location hole, then first servo motor 4 works, and band movable knife rack 2(is band cutter) it is rotated around X-axis.
(2), it is rotated around Y-axis: first controlling knife rest 2 and reset, then 7 edge of the second servo motor is driven by the first Y-direction hydraulic cylinder 8 The Y-direction of pedestal 1 is mobile, matches the second spline 41 on the second servo motor 7 with the second splined hole 22 on knife rest 2, the Two Y-direction hydraulic cylinders 9 driving piston rod protrudes into Y-direction location hole, then controls the first spline 41 and knife in first servo motor 4 The first splined hole 21 on frame 2 is separated, and the 2nd X exits X to location hole to the piston rod of hydraulic cylinder 6, then controls the second servo Motor 7 works, and band movable knife rack 2(is band cutter) it is rotated around Y-axis.
(3), along X to moving: driving from X to piezoelectric ceramic actuator 10 and X by are put to the displacement of displacement equations hinge Greatly, push Cutting tool installation manner platform 3(to push cutter) along X to moving.
(4), it is moved along Y-direction: by the first Y-direction piezoelectric ceramic actuator 11 or the second Y-direction piezoelectric ceramic actuator 12 The displacement equations of driving and the first Y-direction displacement equations hinge or the second Y-direction displacement equations hinge push Cutting tool installation manner platform 3 (i.e. promotion cutter) is moved along Y-direction.
(5), rotate about the z axis: the first Y-direction piezoelectric ceramic actuator 11 and the second Y-direction piezoelectric ceramic actuator 12 drive simultaneously It is dynamic, push Cutting tool installation manner platform 3(to push cutter) rotate about the z axis.

Claims (6)

1. a kind of five degree of freedom fast servo tool micromotion platform, it is characterised in that including pedestal, knife rest and for installing cutter Cutting tool installation manner platform, the first driving mechanism for rotating the knife rest around X-axis is provided on the pedestal and is made described The second driving mechanism for being rotated around Y-axis of knife rest, be fixedly installed X to piezoelectric ceramic actuator, the first Y-direction on the knife rest Piezoelectric ceramic actuator and the second Y-direction piezoelectric ceramic actuator, the Cutting tool installation manner platform are arranged in the knife rest, institute The X stated is to being provided with X to displacement equations hinge between piezoelectric ceramic actuator and the Cutting tool installation manner platform, and described first Y-direction piezoelectric ceramic actuator and second Y-direction piezoelectric ceramic actuator being staggeredly located out in Y-direction, first Y-direction The first Y-direction displacement equations hinge, second Y-direction are provided between piezoelectric ceramic actuator and the Cutting tool installation manner platform The second Y-direction displacement equations hinge is provided between piezoelectric ceramic actuator and the Cutting tool installation manner platform.
2. a kind of five degree of freedom fast servo tool micromotion platform as described in claim 1, it is characterised in that: described first Driving mechanism includes first servo motor, the first X to hydraulic cylinder and the 2nd X to hydraulic cylinder, and the first X is to hydraulic cylinder and institute The 2nd X stated is respectively and fixedly installed to the opposite two sides of the pedestal, piston of the first X to hydraulic cylinder to hydraulic cylinder The end of bar is fixedly installed first connecting rod, and the first connecting rod is fixedly connected with the first servo motor, institute The first servo motor stated and the pedestal along X to being slidably matched, it is coaxially solid in the drive shaft of the first servo motor Surely it is provided with the first spline, the side of the knife rest towards the first servo motor is provided with for described first The first splined hole that spline matches, the knife rest are provided with X to positioning to the side of hydraulic cylinder towards the 2nd X Hole, the 2nd X protrude into the X into location hole to the piston rod of hydraulic cylinder.
3. a kind of five degree of freedom fast servo tool micromotion platform as described in claim 1, it is characterised in that: described second Driving mechanism includes the second servo motor, the first Y-direction hydraulic cylinder and the second Y-direction hydraulic cylinder, the first Y-direction hydraulic cylinder and institute The the second Y-direction hydraulic cylinder stated is respectively and fixedly installed to the opposite two sides of the pedestal, the piston of the first Y-direction hydraulic cylinder The end of bar is fixedly installed the second connecting rod, and second connecting rod is fixedly connected with second servo motor, institute The second servo motor stated is slidably matched with the pedestal along Y-direction, coaxially solid in the drive shaft of second servo motor Surely it is provided with the second spline, the side of the knife rest towards second servo motor is provided with for described second The second splined hole that spline matches, the side of the knife rest towards the second Y-direction hydraulic cylinder are provided with Y-direction positioning Hole, the piston rod of the second Y-direction hydraulic cylinder protrude into the Y-direction location hole.
4. a kind of five degree of freedom fast servo tool micromotion platform as described in claim 1, it is characterised in that: the X to Displacement equations hinge include the first U-shaped linking arm, the both ends of the first U-shaped linking arm pass through respectively flexible hinge with it is described Knife rest integrally connected, the inner arm of the first U-shaped linking arm passes through flexible hinge and the Cutting tool installation manner platform one Connection, the X are against on the outer arm of the first U-shaped linking arm to piezoelectric ceramic actuator.
5. a kind of five degree of freedom fast servo tool micromotion platform as described in claim 1, it is characterised in that: described first Y-direction displacement equations hinge includes the second U-shaped linking arm and straight-arm, and the first Y-direction piezoelectric ceramic actuator is against described On straight-arm, the outer arm of one end of the straight-arm and the second U-shaped linking arm is perpendicular and integrally connected, and described second The outer arm of U-shaped linking arm is passed through by flexible hinge and the knife rest integrally connected, the inner arm of the second U-shaped linking arm Flexible hinge and the Cutting tool installation manner platform integrally connected.
6. a kind of five degree of freedom fast servo tool micromotion platform as described in claim 1, it is characterised in that: described second Y-direction displacement equations hinge includes third U-shaped linking arm, the inner arm of the third U-shaped linking arm by flexible hinge with it is described Cutting tool installation manner platform integrally connected, the second Y-direction piezoelectric ceramic actuator is against the outer of the third U-shaped linking arm On arm, the open end of the third U-shaped linking arm passes through flexible hinge and the knife rest integrally connected.
CN201821605386.9U 2018-09-29 2018-09-29 A kind of five degree of freedom fast servo tool micromotion platform Active CN209077809U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109261995A (en) * 2018-09-29 2019-01-25 宁波大学 A kind of five degree of freedom fast servo tool micromotion platform
CN111531394A (en) * 2020-05-07 2020-08-14 中国人民解放军国防科技大学 Large-stroke fast cutter servo device
CN109261995B (en) * 2018-09-29 2024-06-28 宁波大学 Five-degree-of-freedom quick servo tool rest micro-motion platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109261995A (en) * 2018-09-29 2019-01-25 宁波大学 A kind of five degree of freedom fast servo tool micromotion platform
CN109261995B (en) * 2018-09-29 2024-06-28 宁波大学 Five-degree-of-freedom quick servo tool rest micro-motion platform
CN111531394A (en) * 2020-05-07 2020-08-14 中国人民解放军国防科技大学 Large-stroke fast cutter servo device

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