CN105841637A - Machine tool transmission chain detection device and detection method - Google Patents
Machine tool transmission chain detection device and detection method Download PDFInfo
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- CN105841637A CN105841637A CN201610156087.0A CN201610156087A CN105841637A CN 105841637 A CN105841637 A CN 105841637A CN 201610156087 A CN201610156087 A CN 201610156087A CN 105841637 A CN105841637 A CN 105841637A
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- displacement sensor
- machine tool
- angular displacement
- workbench
- stator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a machine tool transmission chain detection device. The device comprises a knife bar angle displacement sensor and a workbench angle displacement sensor. The knife bar angle displacement sensor and the workbench angle displacement sensor are connected to a rotational transmission precision measuring instrument. A stator of the workbench angle displacement sensor is embedded and fixed into a center hole of a disk-shaped leaf spring and the stator and the center hole are concentric. An edge portion of the leaf spring is fixed to a machine body of a machine tool through a magnetic stand. The workbench angle displacement sensor is supported by a sensor pedestal and a rotor and a machine tool workbench are coaxially rotated and connected. The invention also discloses a machine tool transmission chain detection method. The device and the method have advantages that 1, a problem that an installation and positioning position of the stator of the workbench angle displacement sensor on the machine tool, which accords with a requirement, is difficult to find is solved, damages of a tooling used for fixing the stator to the machine tool are avoided and installation time is shortened; and 2, a problem that the stator needs to be repeatedly dismounted and clamped before measurement when the angle displacement sensor repeatedly carries out transposition and measurement is solved, and measurement precision and operation convenience are increased.
Description
Technical field
The present invention relates to precision machine tool field, specifically a kind of machine tool drive chain detection device and detection method.
Background technology
Currently the detection present situation about mechanical drive trains such as gear making machine (roll, insert, grind), worm gear, gear-boxes is: use back
Turning transmission accuracy measuring instrument, round induction synchrometer formula machine tool drive precision measurer as disclosed in CN 86210172 U, in transmission
First-in-chain(FIC) end respectively install an angular displacement sensor (as time grid, grating, magnetic grid, encoder etc.), its rotor synchronizes with driving member
Revolution.Wherein, the stator of angular displacement sensor must be relatively fixed, and never can rigidly fix, otherwise stator, rotor will be because of
Center displacement and axial displacement during for installing produce strength and pull, and bring especially big measurement error, the most damaged.This problem is outstanding
It is more aobvious prominent, such as worm transmission pair, gear-hobbing machine, gear shapping machine, screw rod on the extra-high driving-chain of big speed ratio, required precision
Lathe etc..To this end, forefathers have made substantial amounts of work: wherein Czech Si Tepannike and Shanghai Machine Tool Plant HYQ010A is common
The parallel steel band method (IMOS) of research and development is totally repudiated；The CYQ003 instrument that Czech TOCNMO and Chongqing Machine Tool Factory research and develop jointly
Device uses six spring structures, though by market certainly more than ten years, but must clamping the most again, remeasure, again verify, eventually
In place of having shakiness, bring very big inconvenience to user；OPTON company of Germany model is the machine tool drive precision measurer of GPG05
Have employed Germany's HANDHAIN grating simply, this grating feature is to be mounted with shaft coupling between rotor stator, it is desirable to rotor and stator
Nonconcentricity≤0.02mm, the axial offset deviation≤± 0.1mm installed, this installation requirement is directly given by GPG05 measuring instrument
User settles a dispute by the parties concerned themselves, and when therefore user uses this instrument, will survey a kind of lathe and be necessary for manufacturing and designing a set of frock, to user
Bring great inconvenience.These incomplete detection meanss constrain the development in precision of China's gear making machine.
Summary of the invention
It is an object of the invention to provide a kind of machine tool drive chain detection device and detection method, it can solve in driving-chain detection
The installation question of the stator of angular transducer, can solve again the sensor problem that repeatedly indexing improves certainty of measurement.
Technical scheme is as follows:
A kind of machine tool drive chain detection device, including measuring the knife bar angular displacement sensor of the lathe knife bar anglec of rotation and measuring lathe
The workbench angular displacement sensor of worktable rotary angle, knife bar angular displacement sensor and workbench angular displacement sensor are connected to one
Revolution transmission accuracy measuring instrument.The stator of workbench angular displacement sensor is mounted in a disc leaf spring and both are concentric, leaf spring
Edge part be fixed on the fuselage of lathe by Magnetic gauge stand, workbench angular displacement sensor is supported by a sensor support base
And its rotor rotates coaxially with platen and is connected.
Further, the workbench bolt of sensor support base and lathe is fixed, and sensor support base has the core of a setting
Axle, the rotor of workbench angular displacement sensor is fixed on mandrel top and both are coaxial, and mandrel is provided with end face bearing, end
The stator of the ball support works corner of table displacement transducer of spherical bearing.
Further, sensor support base includes the connecting base plate being positioned at lower end, and connecting base plate is provided with the connecting hole run through up and down,
Connecting hole is angularly uniformly distributed around mandrel, and connecting base plate is coaxially fixed on platen by installing bolt in connecting hole
On.
Further, sensor support base includes the pallet being fixedly mounted on mandrel, and end face bearings is on pallet.
Further, the built-in shaft coupling of workbench angular displacement sensor, it is connected by shaft coupling between its stator with rotor.
Further, leaf spring is held between two Magnetic gauge stands, substantially symmetrical about its central axis relative to platen of this two Magnetic gauge stand.
Further, the edge part of leaf spring is provided with four rectangle jaws for Magnetic gauge stand clamping, and jaw opening is outwardly, adjacent
It is 90 degree of angles relative to the center of leaf spring between two jaws.
Present invention also offers a kind of machine tool drive chain detection method, it comprises the steps:
1. installment work corner of table displacement transducer and knife bar angular displacement sensor, debugging revolution transmission accuracy measuring instrument makes it initialize.
2. determine the stator position relative to lathe fuselage of workbench angular displacement sensor, realize work corner of table by rotating leaf spring
Relative to bed piece indexing for several times, every indexing once restarts platen and knife bar once to the stator of displacement transducer,
And detect the transmission accuracy of a machine tool drive chain.
3. detected, dismounting Magnetic gauge stand, workbench angular displacement sensor and knife bar angular displacement sensor.
Further, step 2. in, the stator of workbench angular displacement sensor successively indexing 0 °, 90 °, 180 ° and 270 °,
The precision of four measurement lathes.
The detection device employing Magnetic gauge stand that the present invention provides fixes the basic part of the stator of workbench angular displacement sensor, and adopts
By disc leaf spring as the stator connecting piece between the two of Magnetic gauge stand and workbench angular displacement sensor, on the one hand, magnetic
The stand end of gauge stand can firmly adsorb on the fuselage of lathe, it is not necessary to extra attachment structure, absorption position energy free variation,
Both facilitated general, the self structure of lathe will not have been destroyed again；On the other hand, owing to leaf spring is disc, in workbench angular displacement
The when that the stator of sensor needing indexing, it is not necessary to dismounting leaf spring, leaf spring is in the case of center is constant, and any rotation all may be used
To be considered as not rotating, as long as keeping Magnetic gauge stand and clip position thereof constant, then after stator transfers to, the clamping of Magnetic gauge stand
End clamping leaf spring just can be considered both relative invariant positions, and the clamping being easy for meeting Magnetic gauge stand is eccentric certain, and work corner of table position
The rotor of displacement sensor remains in claimed range with axial offset deviation and the nonconcentricity of stator.Thus, solve: 1,
Workbench angular displacement sensor stator is on lathe the difficult problem finding satisfactory installation position location, it is to avoid installation stator
Destruction to lathe, shortens the time of installation；2, angular displacement sensor is during indexing is measured repeatedly, before measuring every time
Stator needs the problem that repeated disassembled and assembled clamps, and improves the convenience of certainty of measurement and operation.
It addition, this detection device is different from prior art the supporting construction to workbench angular displacement sensor, have employed end face axle
Hold reach to workbench angular displacement sensor without friction support.This supporting construction is simple, and the rotation of platen will not shadow
Ring the stator of sensor.And in leaf spring, set jaw, both may indicate that the angle that stator and leaf spring rotate relative to bed piece,
Facilitate again Magnetic gauge stand to clamp, make the bare terminal end of Magnetic gauge stand and the clamping stable and consistent of leaf spring.When transmission accuracy has detected,
After dismounting Magnetic gauge stand, the bolt that dismounting connecting base plate is fixed on platen can conveniently unload this detection device.
The detection method that the present invention provides, is exempted the measurement error that angular transducer repeated disassembled and assembled is brought, and is surveyed by four indexings
Amount such that it is able to record the driving-chain precision of lathe accurately, easily and quickly.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention detects a kind of specific embodiment of device；
Fig. 2 is the structural representation of leaf spring in Fig. 1；
Fig. 3 is the system block diagram of revolution transmission accuracy measuring instrument；
Fig. 4 is the software processes block diagram of revolution transmission accuracy measuring instrument.
In figure: 1-workbench angular displacement sensor；2-leaf spring；3-Magnetic gauge stand；4-end face bearing；20-platen；101-
The stator of workbench angular displacement sensor；The rotor of 102-workbench angular displacement sensor；103-shaft coupling；104-connecting base plate；
105-mandrel；106-pallet；107-bolt；201-jaw.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
A kind of machine tool drive chain detection device, is used for detecting lathe driving-chain transmission accuracy.
This detection device comprises knife bar angular displacement sensor, workbench angular displacement sensor 1 and revolution transmission accuracy measuring instrument, returns
Turning transmission accuracy measuring instrument and carry out the detection of driving error according to synchronous shift comparison principle, the system of measuring instrument forms such as Fig. 3 institute
Showing, its software processes block diagram is as shown in Figure 4.Knife bar angular displacement sensor is installed on the outfan of lathe knife bar, for measuring machine
The anglec of rotation of bed knife bar, the spindle motor of lathe drives knife bar (not shown).Workbench angular displacement sensor 1 is suspended at lathe
The surface of workbench 20, for measuring the anglec of rotation of platen 20.Platen 20 and knife bar synchronous axial system,
Two above-mentioned sensors by measurement to rotary angle signal be delivered to turn round transmission accuracy measuring instrument.Platen 20 is each
Revolution certain angle, general revolution improves accuracy of detection for four times, and revolution transmission accuracy measuring instrument may finally calculate lathe work
The synchro angle displacement relation of platform 20 and the knife bar anglec of rotation, thus obtain the driving-chain transmission accuracy of lathe.
The detection device of the present invention is to be solved: as the workbench angular displacement sensor 1 of sophisticated sensor, sensor stator
During installation, on lathe, difficulty finds satisfactory installation position location；During indexing is measured repeatedly, before measuring every time,
Its stator needs indexing clamping repeatedly.As a example by using Germany's HANDHAN RON886 grating, this grating is angular encoder, interior
It is equipped with shaft coupling 103, during installation, it is desirable to rotor 102 and the axial offset deviation≤0.1mm of stator 101, nonconcentricity≤
0.02mm.For solving this installation requirement, the detection device of the present invention uses Magnetic gauge stand 3 as stationary work-table angle displacement transducer
The basic part of the stator 101 of device, uses disc leaf spring 2 as the connecting piece of Magnetic gauge stand 3 with stator 101.Such as Fig. 1 institute
Showing, the stator 101 of workbench angular displacement sensor is mounted in a disc leaf spring 2 and both are concentric, disc leaf spring 2
Edge part is fixed on the fuselage of lathe by Magnetic gauge stand 3, makes the rotor 102 of workbench angular displacement sensor work with lathe
Platform 20 can rotate by coaxial synchronous.In this structure, because the arbitrary coordinate that leaf spring 2 forwards in addition to revolution all can be considered the most dynamic,
It is easy for meeting the clamping bias≤0.02mm of each Magnetic gauge stand 3, is then easily achieved repeatedly indexing and measures, thus significantly
Improve certainty of measurement, it might even be possible to exceed the precision of lenticular product itself.And Magnetic gauge stand 3 is generally applicable, omnipotent, make easily
Stator 101 and the leaf spring 2 of workbench angular displacement sensor grip, when unclamping and clamping leaf spring 2 every time, and Magnetic gauge stand
Leaf spring 2 is not brought external force by the clamper on 3, it is ensured that the stator 101 of workbench angular displacement sensor turns in a free state
Clamp again after Wei or loosen.This detection device avoids the frock of fixed stator 101 destruction to lathe, stator in prior art
101 need not indexing clamping repeatedly.
Workbench angular displacement sensor 1, in addition to having the support of leaf spring 2 and Magnetic gauge stand 3, additionally uses the knot of a kind of end face bearing
Configuration formula, as it is shown in figure 1, sensor support base has the mandrel 105 of a setting, turning of workbench angular displacement sensor 1
Son 102 is fixed on mandrel 105 top and both are coaxial.A pallet 106 is fixed, end on the mandrel 105 of sensor support base
Spherical bearing 4 is supported on pallet 106, the stator 101 of the ball support works corner of table displacement transducer 1 of end face bearing 4.With
General bearing couples difference with one heart for solve fixed position and motion parts, and this end face bearing 4 is for the most steady
Hold the stationary part of workbench angular displacement sensor 1, the weight of support works corner of table displacement transducer 1, make work corner of table
Displacement transducer 1 can be as being suspended in the air, even if stator 101 does not rotates, platen 20 rotates, due to end face
The ball of bearing 4 is minimum to the frictional force of workbench angular displacement sensor 1, and stator 101 is also little affected by some frictional influences.
Connecting base plate 104 is provided with the connecting hole run through up and down, and connecting hole is angularly uniformly distributed around mandrel 105, it is ensured that connect
Power equalizes, and connecting base plate 104 is coaxially fixed on platen 20 by installing bolt 107 in connecting hole, is detecting
Cheng Hou, this detection device can be separated platen 20 by demounting bolt 107.
Relative two edge of disc leaf spring 2 are clamped by the bare terminal end of Magnetic gauge stand 3, substantially symmetrical about its central axis with platen 20.
For convenience of clamping and indexing, the edge part of leaf spring 2 is provided with four rectangle jaws 201 for Magnetic gauge stand clamping, and jaw 201 is opened
Mouthful outwardly, it is 90 degree of angles relative to the center of leaf spring between two adjacent jaws 201.
The detection device that corresponding above-described embodiment provides, present invention also offers the detection method of a kind of machine tool drive chain, and it includes
Following steps:
1. installment work corner of table displacement transducer and knife bar angular displacement sensor, debugging revolution transmission accuracy measuring instrument makes it initialize；
2. determine the stator position relative to lathe fuselage of workbench angular displacement sensor, realize work corner of table by rotating leaf spring
Relative to bed piece indexing for several times, every indexing once restarts platen and knife bar once to the stator of displacement transducer,
And detect the transmission accuracy of a machine tool drive chain；
3. detected, dismounting Magnetic gauge stand, workbench angular displacement sensor and knife bar angular displacement sensor.
Above-mentioned steps 2. in, the stator 101 of workbench angular displacement sensor 1 successively indexing 0 °, 90 °, 180 ° and 270 °,
The precision of four measurement lathes improves the reliability of testing result.Even more repetitive measurement, to improve the survey of instrument long-period error
Accuracy of measurement.In theory, precision can be improvedTimes, n is indexing number of times.
Claims (10)
1. a machine tool drive chain detection device, including knife bar angular displacement sensor and the measuring machine of measuring the lathe knife bar anglec of rotation
The workbench angular displacement sensor of bed worktable rotary angle, knife bar angular displacement sensor and workbench angular displacement sensor are connected to
Single-revolution transmission accuracy measuring instrument, it is characterised in that: the stator of workbench angular displacement sensor is mounted in a disc leaf spring
In central hole and both are concentric, the edge part of leaf spring is fixed on the fuselage of lathe by Magnetic gauge stand, workbench angular displacement sensor
Supported by a sensor support base and its rotor rotates coaxially with platen and is connected.
Machine tool drive chain the most according to claim 1 detection device, it is characterised in that: sensor support base and lathe
Workbench bolt is fixed, and sensor support base has the mandrel of a setting, and the rotor of workbench angular displacement sensor is fixed on core
Axle top and both are coaxial, mandrel is provided with end face bearing, the ball support works corner of table displacement transducer of end face bearing
Stator.
Machine tool drive chain the most according to claim 1 detection device, it is characterised in that: sensor support base includes being positioned at
The connecting base plate of lower end, connecting base plate is provided with the connecting hole run through up and down, and connecting hole is angularly uniformly distributed around mandrel, connects
Chassis is coaxially fixed on platen by installing bolt in connecting hole.
Machine tool drive chain the most according to claim 2 detection device, it is characterised in that: sensor support base includes fixing
The pallet being arranged on mandrel, end face bearings is on pallet.
Machine tool drive chain the most according to claim 1 detection device, it is characterised in that: workbench angular displacement sensor is built-in
Shaft coupling, is connected by shaft coupling between its stator with rotor.
Machine tool drive chain the most according to any one of claim 1 to 5 detection device, it is characterised in that: leaf spring is held on
Between two Magnetic gauge stands, substantially symmetrical about its central axis relative to platen of this two Magnetic gauge stand.
Machine tool drive chain the most according to claim 6 detection device, it is characterised in that: the edge part of leaf spring is provided with four confessions
The rectangle jaw of Magnetic gauge stand clamping, jaw opening outwardly, is 90 degree of angles relative to the center of leaf spring between two adjacent jaws.
8. detect device according to the machine tool drive chain described in any one in claim 1 to 5 and 7, it is characterised in that: work
Station angular displacement sensor is a monolithic construction after installing with leaf spring.
9. utilizing the detection method that the detection device of the machine tool drive chain according to any one of claim 1 to 8 is carried out, it is special
Levy and be, comprise the steps:
1. installment work corner of table displacement transducer and knife bar angular displacement sensor, debugging revolution transmission accuracy measuring instrument makes it initialize；
2. determine the stator position relative to lathe fuselage of workbench angular displacement sensor, realize work corner of table by rotating leaf spring
Relative to bed piece indexing for several times, every indexing once restarts platen and knife bar once to the stator of displacement transducer,
And detect the transmission accuracy of a machine tool drive chain；
3. detected, dismounting Magnetic gauge stand, workbench angular displacement sensor and knife bar angular displacement sensor.
Machine tool drive chain detection method the most according to claim 9, it is characterised in that: step 2. in, workbench angular displacement
The stator of sensor indexing 0 °, 90 °, 180 ° and 270 °, the transmission accuracy of four measurement lathe driving-chains successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156087.0A CN105841637B (en) | 2016-03-18 | 2016-03-18 | Machine tool drive chain detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156087.0A CN105841637B (en) | 2016-03-18 | 2016-03-18 | Machine tool drive chain detection device and detection method |
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| CN105841637A true CN105841637A (en) | 2016-08-10 |
| CN105841637B CN105841637B (en) | 2018-05-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568398A (en) * | 2016-11-15 | 2017-04-19 | 北京北机床股份有限公司 | Swing axle revolution precision measure method of pivot angle head and similar type product |
| CN107339971A (en) * | 2017-07-27 | 2017-11-10 | 天津工程机械研究院有限公司 | A kind of dynamic self-adapting angle-measuring equipment |
| CN107844119A (en) * | 2017-12-14 | 2018-03-27 | 中国计量大学 | Visual guidance method and visual guidance car based on space-time conversion |
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| CN86210172U (en) * | 1986-12-08 | 1987-09-12 | 山东工业大学 | Circular induction synchronizism device type measuring instrument for driving accuracy of machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568398A (en) * | 2016-11-15 | 2017-04-19 | 北京北机床股份有限公司 | Swing axle revolution precision measure method of pivot angle head and similar type product |
| CN107339971A (en) * | 2017-07-27 | 2017-11-10 | 天津工程机械研究院有限公司 | A kind of dynamic self-adapting angle-measuring equipment |
| CN107339971B (en) * | 2017-07-27 | 2023-07-07 | 天津工程机械研究院有限公司 | Dynamic self-adaptive angle measuring device |
| CN107844119A (en) * | 2017-12-14 | 2018-03-27 | 中国计量大学 | Visual guidance method and visual guidance car based on space-time conversion |
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| CN105841637B (en) | 2018-05-11 |
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