CN205342667U - Check out test set of five digit control machine tool rotation axis errors - Google Patents

Check out test set of five digit control machine tool rotation axis errors Download PDF

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Publication number
CN205342667U
CN205342667U CN201521045625.6U CN201521045625U CN205342667U CN 205342667 U CN205342667 U CN 205342667U CN 201521045625 U CN201521045625 U CN 201521045625U CN 205342667 U CN205342667 U CN 205342667U
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China
Prior art keywords
machine tool
control machine
axle
rotating shaft
guide rail
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Withdrawn - After Issue
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CN201521045625.6U
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Chinese (zh)
Inventor
叶建华
黄卫东
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Fujian University of Technology
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Fujian University of Technology
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Abstract

The utility model discloses a check out test set of five digit control machine tool rotation axis errors, master ball device including two mesh machine vision non -contact measuring heads and adjustable position, two mesh machine vision non -contact measuring heads include L shape mounting bracket, are equipped with on the L shape mounting bracket and connect handle and camera, the master ball device of adjustable position includes the magnetic force base, is equipped with the flexible mount pad of adjusting on the magnetic force base, and the flexible mount pad top of adjusting is fixed with the master ball, utilize sharp accurate positioning that can drive measurement system on the lathe, detect the error of rotation axis. The utility model discloses fusing machine vision non -contact and measuring, have the advantage efficient, that the measurement process is simple, the master ball has isotropic, characteristics that mounting layout is convenient to and quick -witted measuring technique realize with the integration of lathe self, install convenient, the accurate advantage in location, make measurement of efficiency height, good, the easy operation of precision of high non -linear rotation axis composite error.

Description

A kind of detection equipment of five-axle number control machine tool rotating shaft error
Technical field
This utility model relates to the detection equipment of a kind of NC Machine Error, particularly relates to the detection equipment of a kind of five-axle number control machine tool rotating shaft error.
Background technology
Five-axle number control machine tool is the desirable process equipment of complex-curved class part, the industries such as military affairs, Aeronautics and Astronautics, precision instruments had very important effect, it is unique manufacturing process of blade, turbine rotor, marine propeller, the contour essence of large-sized diesel machine crankshaft complex-curved class part, comprehensively embodies state's development of manufacturing level.Five-axle number control machine tool is usually on the basis of three linear axes, increases by two rotating shafts.The rotating shaft increased improves the flexibility of lathe, and then improves material remove rate and suface processing quality, can reduce the clamping times of workpiece, shortens process time.But, inevitably there is manufacture, alignment error in rotating shaft component part, certainly exists abrasion precision loss, deformation etc. so that geometric error has the feature of nonlinearity and time-varying in use procedure.Showing according to the study, machining accuracy is had significant impact by the geometric error of rotating shaft.How turntable error being measured fast and efficiently, compensating for machine tool error and providing foundation is the target that industrial circle is seek assiduously, is also to ensure that the key of processing precision of products.
Measurement currently for rotating shaft error there is presently no direct, unified method, is mainly measured as master with synthetic error.Domestic and international research worker has carried out substantial amounts of research work.The main measurement device adopted has ball bar, laser tracker, R-test equipment, positive 12 or 24 polygon prisms and autocollimators etc..Ball bar low price, is most widely used, but installation, adjustment when measuring is complicated, measures inefficiency, and personnel's skill requirement is high.Laser tracker, measures convenient and swift, but expensive.R-test equipment is contact type measurement, and measuring condition is required height, measures limited efficacy.Positive 12 or 24 polygon prisms and autocollimator, need special frock, measures process complicated.Additionally, utility model patent CN103323229A is proposed one " the five-axle number control machine tool rotating shaft error measurement method based on machine vision " and is realized the measurement of five axis errors by a set of independent monocular image acquisition system and many group concentric circular rectangular arrays, measuring method adopts non-cpntact measurement, measurement process is simple, but require that the imaging surface of monocular camera is parallel with face, surveying marker place, detection mark stationary plane wants vertical with rotation axis, mounting and adjusting difficulty.
The error of Digit Control Machine Tool linear axis is often little than the error of rotating shaft much and can be undertaken directly measuring and compensating by laser interferometer, is therefore just becoming based on the on-machine measurement system of Digit Control Machine Tool self that rotating shaft error is efficient, the ideal tools of portable measurement.Et al. IBAEAKIS. contact on-machine measurement system is utilized to carry out the composite measurement of five-axis machine tool rotating shaft error based on three standard squares.BIQZ et al. then utilizes trigger-type on-machine measurement system to carry out the composite measurement of five-axis machine tool rotating shaft error based on single standard square.ErkanT et al. utilizes trigger-type on-machine measurement system to carry out the analysis of five-axis machine tool error distortion level based on multiple standard ball.But these on-machine measurement systems belong to contact type measurement, measure inefficient, limit to employing point quantity.In sum, existing rotating shaft error measurement method all has deficiency.
Utility model content
For solving the problems referred to above, this utility model provides the detection equipment of a kind of five-axle number control machine tool rotating shaft error.This utility model merges machine vision non-contact measurement, there is efficiency height, the simple advantage of measurement process, standard ball has isotropism, the convenient feature of mounting arrangement, and on-machine measurement technology realizes the Seamless integration-with lathe self, advantage convenient, accurate positioning is installed so that the measurement efficiency of nonlinearity rotating shaft synthetic error is high, precision is good, simple to operate.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
The detection equipment of a kind of five-axle number control machine tool rotating shaft error, including the standard ball device of binocular machine vision non-contact measurement head and position adjustable;Described binocular machine vision non-contact measurement head includes L-shaped installing rack, and L-shaped installing rack is provided with connection handle;Two sides of L-shaped installing rack are separately installed with camera, and two cameras are mutually perpendicular to installation;Camera is connected with computer by wireless network;The standard ball device of described position adjustable includes magnetic force base, and magnetic force base is provided with telescopic adjustment mounting seat, and telescopic adjustment mounting seat top is fixed with standard ball;Described telescopic adjustment mounting seat includes some adjustable columns being nested with, and is provided with guide finger outside adjustable column, is provided with vertical guide groove and the positioning guide rail groove coordinated with guide finger inside adjustable column.
Further improving, described connection handle is the standard handle of a knife that the main shaft tool rest with five-axle number control machine tool coordinates.
Further improving, described camera is CCD camera;The resolution of camera is not less than 10,000,000 pixels.
Further improving, described positioning guide rail groove is multiple, and positioning guide rail groove is set up in parallel up and down.
Further improving, described L-shaped installing rack is provided with reinforcement.
Further improving, described positioning guide rail groove is wedge-shaped slot, and positioning guide rail groove upwards spiral gradually along clockwise direction, guide finger is and the wedge shape of positioning guide rail slot fit.
This utility model merges machine vision non-contact measurement, there is efficiency height, the simple advantage of measurement process, standard ball has isotropism, the convenient feature of mounting arrangement, and on-machine measurement technology realizes the Seamless integration-with lathe self, advantage convenient, accurate positioning is installed so that the measurement efficiency of nonlinearity rotating shaft synthetic error is high, precision is good, simple to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of binocular machine vision non-contact measurement head;
Fig. 2 is the structural representation of the standard ball device of position adjustable;
Fig. 3 is the structural representation of adjustable column;
Fig. 4 is the mounting structure schematic diagram of utility model;
Wherein, 1.L shape installing rack, 2. connection handle, 3. camera, 4. magnetic force base, 5. telescopic adjustment mounting seat, 6. standard ball, 7. adjustable column, 8. guide finger, 9. positioning guide rail groove, 10. reinforcement, 11. binocular machine vision non-contact measurement heads, the standard ball device of 12. position adjustables.
Detailed description of the invention
Embodiment 1
The detection equipment of a kind of five-axle number control machine tool rotating shaft error as depicted in figs. 1 and 2, including the standard ball device 12 of binocular machine vision non-contact measurement head 11 and position adjustable;Described binocular machine vision non-contact measurement head 11 includes L-shaped installing rack 1, and L-shaped installing rack 1 is provided with connection handle 2;Two sides of L-shaped installing rack 1 are separately installed with camera 3, and two cameras 3 are mutually perpendicular to installation;Camera 3 is connected with computer by wireless network.The image so gathered can be transferred on computer by wireless communication module in real time and carry out Treatment Analysis.
The standard ball device 12 of described position adjustable includes magnetic force base 4, and magnetic force base 4 is provided with telescopic adjustment mounting seat 5, and telescopic adjustment mounting seat 5 top is fixed with standard ball 6;Described telescopic adjustment mounting seat 5 includes some adjustable columns 7 being nested with.
As it is shown on figure 3, be provided with guide finger 8 outside adjustable column 7, inside adjustable column 7, it is provided with vertical guide groove and the positioning guide rail groove 9 coordinated with guide finger 8.
Connection handle 2 is handle of a knife shape, in order to be installed on the main shaft tool rest of five-axle number control machine tool, to realize the Seamless integration-of measurement system and machine body, utilizes lathe linear axis can drive being accurately positioned of measurement system.Described camera 3 is CCD camera;The resolution of camera 3 is preferably not less than 10,000,000 pixels.Positioning guide rail groove 9 is multiple, and positioning guide rail groove about 9 is set up in parallel.L-shaped installing rack 1 is provided with reinforcement 10.Described positioning guide rail groove (9) is wedge-shaped slot, and positioning guide rail groove (9) upwards spiral gradually along clockwise direction, guide finger (8) is the wedge shape coordinated with positioning guide rail groove (9).The adjustable column guide finger of Gao Yijie is arranged in the positioning guide rail groove of a low joint.When adjustable column rotates, when guide finger just drops on vertical guide groove, it may be achieved the adjustment of upper-lower position.When adjusting proper height, reversely rotate to realize locking positioning.
The mounting means of this device is as shown in Figure 4.The principle of this device is to utilize lathe linear axis can drive being accurately positioned of measurement system, the error of detection rotating shaft.((error that in figure, B axle exists when rotating, can make kinematic chain to close, and then the error of B axle is reflected equally in measurement result by kinematic chain).
Particularly as follows: binocular machine vision non-contact measurement head 11 is installed on the main shaft tool rest of five-axle number control machine tool;Magnetic force base 4 is adsorbed onto on the work top of five-axle number control machine tool, adjust binocular machine vision non-contact measurement head 11, make the center of standard ball 6 on the intersection point of two camera 3 axis, then two rotating shafts are rotated, three linear axis of five-axle number control machine tool can drive being accurately positioned of measurement system, starting the lag function of five-axle number control machine tool, make the theoretical centre of sphere that the focus of camera follows standard ball relatively not move, the intersection point of two camera axis is the theoretical position in the standard ball center of circle;Gather the projection circular image of standard ball in motor process, calculate the physical location of the standard ball centre of sphere, adjust horizontal level and the height of standard ball, the synthetic error of the theoretical position having more the location criteria ball center of circle and the physical location of the standard ball centre of sphere can be obtained.
The explanation of above example is only intended to help to understand core concept of the present utility model;Simultaneously for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this specification content should not be construed as restriction of the present utility model.

Claims (6)

1. the detection equipment of a five-axle number control machine tool rotating shaft error, it is characterised in that include the standard ball device (12) of binocular machine vision non-contact measurement head (11) and position adjustable;Described binocular machine vision non-contact measurement head (11) includes L-shaped installing rack (1), and L-shaped installing rack (1) is provided with connection handle (2);Two sides of L-shaped installing rack (1) are separately installed with camera (3), and two cameras (3) are mutually perpendicular to installation;Camera (3) is connected with computer by wireless network;The standard ball device (12) of described position adjustable includes magnetic force base (4), magnetic force base (4) is provided with telescopic adjustment mounting seat (5), and telescopic adjustment mounting seat (5) top is fixed with standard ball (6);Described telescopic adjustment mounting seat (5) includes some adjustable columns (7) being nested with, adjustable column (7) outside is provided with guide finger (8), and adjustable column (7) inner side is provided with vertical guide groove and the positioning guide rail groove (9) coordinated with guide finger (8).
2. the detection equipment of five-axle number control machine tool rotating shaft error as claimed in claim 1, it is characterised in that described connection handle (2) is the standard handle of a knife that the main shaft tool rest with five-axle number control machine tool coordinates.
3. the detection equipment of five-axle number control machine tool rotating shaft error as claimed in claim 1, it is characterised in that described camera (3) is CCD camera;The resolution of camera (3) is not less than 10,000,000 pixels.
4. the detection equipment of five-axle number control machine tool rotating shaft error as claimed in claim 1, it is characterised in that described positioning guide rail groove (9) is for multiple, and positioning guide rail groove (9) is set up in parallel up and down.
5. the detection equipment of five-axle number control machine tool rotating shaft error as claimed in claim 1, it is characterised in that described L-shaped installing rack (1) is provided with reinforcement (10).
6. the detection equipment of five-axle number control machine tool rotating shaft error as claimed in claim 1, it is characterized in that, described positioning guide rail groove (9) is wedge-shaped slot, positioning guide rail groove (9) upwards spiral gradually along clockwise direction, guide finger (8) is the wedge shape coordinated with positioning guide rail groove (9).
CN201521045625.6U 2015-12-15 2015-12-15 Check out test set of five digit control machine tool rotation axis errors Withdrawn - After Issue CN205342667U (en)

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Application Number Priority Date Filing Date Title
CN201521045625.6U CN205342667U (en) 2015-12-15 2015-12-15 Check out test set of five digit control machine tool rotation axis errors

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105382631A (en) * 2015-12-15 2016-03-09 福建工程学院 Equipment and method for detecting error of rotating shaft of five-axis numerical control machine tool
CN106546167A (en) * 2017-01-10 2017-03-29 四川大学 For detecting the laser interferometer auxiliary clamp of lathe translation shaft error

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105382631A (en) * 2015-12-15 2016-03-09 福建工程学院 Equipment and method for detecting error of rotating shaft of five-axis numerical control machine tool
CN105382631B (en) * 2015-12-15 2017-12-19 福建工程学院 A kind of detection device and method of five-axle number control machine tool rotation axis error
CN106546167A (en) * 2017-01-10 2017-03-29 四川大学 For detecting the laser interferometer auxiliary clamp of lathe translation shaft error

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Granted publication date: 20160629

Effective date of abandoning: 20171219

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