CN103341789B - Sensor position adjusting device for spindle rotation error detection - Google Patents
Sensor position adjusting device for spindle rotation error detection Download PDFInfo
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- CN103341789B CN103341789B CN201310231909.3A CN201310231909A CN103341789B CN 103341789 B CN103341789 B CN 103341789B CN 201310231909 A CN201310231909 A CN 201310231909A CN 103341789 B CN103341789 B CN 103341789B
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Abstract
The invention relates to a sensor position adjusting device for spindle rotation error detection. The sensor position adjusting device for the spindle rotation error detection is structurally characterized in that a guide sleeve is installed on a base, the guide sleeve and a guide rod fixed on a lifting plate form a sliding pair, an axis of the sliding pair is perpendicular to the horizontal plane, one end of a compression screw is fixed on the base, a thread is machined at the other end of the compression screw, the compression screw penetrates through the lifting plate and is equipped with a nut, a supporting plate is fixed on the lifting plate and attached to the plane of an installation plate, key grooves are formed in the supporting plate and the installation plate respectively, two sliding flat keys are fixedly combined together to form a crossed shape, and the two sliding flat keys are matched with the corresponding key grooves. A sensor support and a limiting block are installed on the installation plate, a detection stick is connected with a spindle to be measured, and a stepped shaft is arranged in a central hole in the end portion of the detection stick. The sensor position adjusting device can ensure that a laser displacement sensor which is used for measuring radial rotation errors of the spindle and the detection stick are in the correct relative positions through the adjustment of the device.
Description
Technical field
The invention relates to a kind of mechanic adjustment unit, be specifically a kind of for spindle rotation accuracy measure in sensor relative to the apparatus for adjusting position of test bar, the dependence to Machine can be saved, and good testing efficiency, effect can be ensured.
Background technology
Spindle rotation error is the key index of reflection dynamic characteristics of spindle system quality, is also the key factor affecting machine finish.By the test to spindle rotation error, can evaluate the performance of main shaft, minimum shape error, surface quality and roughness that under predicted ideal processing conditions, lathe can reach; Also can review mismachining tolerance Producing reason, error compensation control is carried out to lathe, to improve machining accuracy; And condition monitoring and fault diagnosis can be carried out to lathe.Therefore, spindle rotation error test to research and development of products and production practices all significant.
Along with the raising of the speed of mainshaft, precision, traditional contact measurement method can not meet the demand of test.Currently mainly adopt laser displacement sensor to carry out non-contacting measurement to accurate main shaft radial error, mainly adopt contactless Eddy current displacement sensor to measure to main shaft axial error.But no matter select the sensor of which kind, all need to ensure that distance between the detecting head of sensor and test bar is within the measurement stroke range of sensor, and position relationship correct between sensor will be ensured.Conventional way is arranged on a lathe by the main shaft of test, then moved by the reference axis of lathe, and the preliminary distance ensureing sensor and test bar, the position of last fine-tuning sensor is tested.
But, in the research and development, trial-manufacturing process of main shaft, usually do not have suitable lathe to be used for assisting the test carrying out spindle error; Situation like this, if the suitable device of neither one regulates the position relationship between sensor and test main shaft, testing efficiency not only can be caused low, measuring accuracy is also difficult to ensure.
Summary of the invention
The invention provides a kind of sensing station adjusting device.This sensing station adjusting device can substitute the subtest function of aforementioned lathe, namely can ensure testing efficiency, also can reduce testing cost.
The object of the invention is achieved through the following technical solutions: the sensing station adjusting device detected for spindle rotation error, it is characterized in that: on base, fairlead is housed, form sliding pair with the guide post be fixed on lifter plate, the axes normal of sliding pair is in horizontal plane; Clamping screw one end is fixed on base, and the other end is processed with screw thread, passes and be furnished with nut from lifter plate; Gripper shoe is fixed on lifter plate, fits with installing plate plane; Gripper shoe and installing plate have keyway, and two slip flat keys are consolidated into " ten " font, formed coordinate with corresponding keyway; Sensor installation support and limited block on a mounting board, test bar is connected with main shaft to be measured, at the end centre bore of test bar, multidiameter is housed.
Handle is fixed with in two sides of lifter plate; " U " type pad having multiple thickness different between lifter plate from fairlead.
Described test bar coordinates with the stomidium of multidiameter, is locked by holding screw.
At test bar end winding support spacer shell and cover on process gap, act on spacer shell by screw and multidiameter clamped.
Install eddy current sensor in installing plate center, install three screw rods at the excircle of eddy current sensor installation sleeve, screw head is a little more than eddy current sensor.
Be arranged on lifter plate after turning 90 ° of described gripper shoe, detect for horizontal main axis.
The beneficial effect of the invention: the invention adopts said structure, and sensor can do the adjustment in three directions under the drive of adjusting device relative to test bar: lifter plate can do the movement of above-below direction with dynamic sensor; The motion of " front and back ", " left and right " both direction can be done in horizontal plane with dynamic sensor along the movement of " ten " word feather key between gripper shoe and installing plate.This guarantees radial error and axial error measuring transducer can be in optimal test position.The quantity of sensor can need to carry out flexible configuration according to test, but the kind of sensor is only limitted to noncontacting proximity sensor.Relevant parts are meticulous adjustment under closely-pitched screw rod " push-and-pull " effect all, ensures that position can not cause again the collsion damage of sensor accurately simultaneously.The setting of the little multidiameter in test bar end, offers convenience not only to adjustment work, also makes the weight of test bar lighter and handier, thus can measure at higher rotational speeds.The shape of multidiameter also can make different changes as required.This adjusting device is not only applicable to the vertical measurement of test bar perpendicular to horizontal plane, after the Installation posture of gripper shoe on lifter plate changes, is equally applicable to the measurement of horizontal attitude.
Accompanying drawing explanation
Fig. 1 is the three-dimensional profile figure of this adjusting device.
Fig. 2 is the section partial schematic diagram of this adjusting device.
Fig. 3 is the A portion partial enlarged drawing of Fig. 2.
Fig. 4 is the three-dimensional appearance figure being suitable for horizontal attitude measurement.
Fig. 5 a is by multidiameter and test bar locking mode schematic diagram with screw.
Fig. 5 b is by multidiameter and test bar locking mode schematic diagram with nut.
Fig. 5 c is with being with the spacer shell of gap by multidiameter and test bar locking mode schematic diagram.
Fig. 5 d is the left view of Fig. 5 c.
Detailed description of the invention
Be described further the invention below in conjunction with accompanying drawing, base 1 is the installation foundation of this adjusting device, in application process, by base 1, this device is fixed to test site.Base 1 is equipped with fairlead 16, fairlead 16 and the guide post 17 be fixed on lifter plate 3 form sliding pair, and the axes normal of sliding pair is in horizontal plane; Handle 15 is fixed with in two sides of lifter plate 3; Under the drive of handle 15, the height of lifter plate 3 can freely adjust, and suitable " U " shape pad 25 of one group of height can insert guide post 17, is supported on fairlead 16 by lifter plate 3.Clamping screw 2 one end is fixed on base 1, and the other end passes from lifter plate 3, is compressed by lifter plate by nut 14.The quantity of clamping screw 2 and nut 14 can need to select according to structure, respectively has three in this example.Gripper shoe 10 is fixed on lifter plate 3, pastes be associated with " ten " font feather key 24 and connect with installing plate 26 plane.Feather key 24 is made up of two dive keys 24a, 24b, is consolidated together by screws, pins, and is formed with the keyway in gripper shoe 10, installing plate 26 respectively and coordinate.Plate 13, plate 6 are fixed on the relevant position in gripper shoe 10, and screw 11, screw 4 pass the bar hole on plate 13, plate 6, the screwed hole in precession gripper shoe 10, and precession is darker, and plate 13, plate 6 are nearer with the distance of gripper shoe 10; Screwed hole on screw 12, screw 5 difference precession plate 13, plate 6, and withstand in gripper shoe 10, precession is darker, and plate 13, plate 6 are far away with the distance of gripper shoe 10.The force direction of screw 11, screw 12, screw 4, screw 5 pairs of gripper shoes 10 is parallel with the glide direction of feather key 24.After relative position between installing plate 26 and gripper shoe 10 is adjusted to the right place, its position is fixed by pad 18 by screw 19.In this example, screw 19 always has three, and the via diameter on installing plate 26 determines its adjustable stroke.
Fixing rack for sensor 9 and limited block 27 are as sensor fixture in groups, and be fixed on installing plate 26, fixing rack for sensor 9 provides the mounting surface of laser displacement sensing 7, and limited block 27 makes laser displacement sensor 7 installation site contour.Adopt line-of-sight course to carry out the measurement of main shaft radial error in this example, therefore, corresponding sensor fixture also will have three groups, and will ensure that the laser beam of three sensors intersects at a point as much as possible through suitable adjustment, to ensure that test result is accurate.According to other method of testing, the quantity of sensor need only be changed, and make corresponding adjustment.
When test bar 8 is by handle of a knife access test spindle taper hole, just can as previously mentioned, by all around adjustment of adjustment and the installing plate 26 up and down of lifter plate 3, the laser displacement sensor 7 that radial error is measured is in correct test position; Afterwards, lifter plate 3, installing plate 26 will respectively by screw lock, and position will no longer change.Like this, still can not ensure that the sensor that axial error is measured also is in best test position.
In order to solve the problem, according to the feature of this device, do not adopt regulating shaft to the usual way of error measure sensing station, but a little multidiameter 20 has been installed in the end of test bar 8, eddy current sensor 22 is arranged on sensor installing plate 26 center, by adjusting the axial location of multidiameter 20, Eddy current displacement sensor 22 can be made to be in best testing range, ensureing the detection of eddy current sensor to spindle thermal and axial runout.For the ease of multidiameter 20 adjustment and avoid its landing in adjustment process to damage eddy current sensor 22, at the excircle of sensor installation sleeve 23, three screw rods 21 have been installed.The head of screw rod 21 is slightly higher than the head of eddy current sensor 22, and through processing repair, when making the head contact of the end face of multidiameter 20 and screw rod 21, is just in the hypothesis testing range of eddy current sensor 22.Afterwards multidiameter 20 is locked, then screw rod 21 is screwed out, itself and multidiameter 20 are departed from.
The fixed installation mode of several multidiameter 20 is listed in Fig. 5 a-Fig. 5 d.Shown in Fig. 5 a, multidiameter 20 coordinates with the stomidium of test bar 8, and is held out against in radial direction by holding screw.In figure 5b, multidiameter 20 processes external screw thread, and the end of test bar 8 processes screwed hole, and then the two is by threaded engagement, and is locked by round nut.As shown in Fig. 5 c He its left view Fig. 5 d, a spacer shell 28 is had to be fixed on the end of test bar, spacer shell 28 is processed two place gap B, C, the effect of gap is convenient to spacer shell to produce distortion under the effect of lock-screw---namely there is the trend diminished in the gap at gap C place, thus is clamped by multidiameter 20.It should be noted that, other NM fixed form, also in the lump in protection category, what we stated protection is this design concept.
With regard to application category, what this example provided is for test bar perpendicular to horizontal plane, and namely main shaft is in the measurement of vertical Installation posture.Other tests attitude, and the gripper shoe 10 such as expressed by Fig. 4, in lifter plate 3 up conversion 90 ° installation, can meet the measurement of horizontal attitude, also all within the scope of protection.
Claims (6)
1., for the sensing station adjusting device that spindle rotation error detects, it is characterized in that: on base, fairlead is housed, form sliding pair with the guide post be fixed on lifter plate, the axes normal of sliding pair is in horizontal plane; Clamping screw one end is fixed on base, and the other end is processed with screw thread, passes and be furnished with nut from lifter plate; Gripper shoe is fixed on lifter plate, fits with installing plate plane; Gripper shoe and installing plate have keyway, and two slip flat keys are consolidated into " ten " font, formed coordinate with corresponding keyway; Sensor installation support and limited block on a mounting board, test bar is connected with main shaft to be measured, at the end centre bore of test bar, multidiameter is housed.
2. the sensing station adjusting device detected for spindle rotation error according to claim 1, is characterized in that: be fixed with handle in two sides of lifter plate; " U " type pad having multiple thickness different between lifter plate from fairlead.
3. the sensing station adjusting device detected for spindle rotation error according to claim 1, is characterized in that: described test bar coordinates with the stomidium of multidiameter, is locked by holding screw.
4. according to claim 1 for spindle rotation error detect sensing station adjusting device, it is characterized in that: at test bar end winding support spacer shell and cover on process gap, act on spacer shell by screw and multidiameter clamped.
5. the sensing station adjusting device detected for spindle rotation error according to claim 1 or 3 or 4, it is characterized in that: in installing plate center, eddy current sensor is installed, install three screw rods at the excircle of eddy current sensor installation sleeve, screw head is a little more than eddy current sensor.
6. the sensing station adjusting device detected for spindle rotation error according to claim 1 and 2, is characterized in that: be arranged on lifter plate after turning 90 ° of described gripper shoe, detect for horizontal main axis.
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| CN201310231909.3A CN103341789B (en) | 2013-06-09 | 2013-06-09 | Sensor position adjusting device for spindle rotation error detection |
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| CN201310231909.3A CN103341789B (en) | 2013-06-09 | 2013-06-09 | Sensor position adjusting device for spindle rotation error detection |
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| CN103341789B true CN103341789B (en) | 2015-07-08 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801988A (en) * | 2014-02-25 | 2014-05-21 | 南通大学 | Monitoring system for thermal error of machine tool spindle |
| CN104802027B (en) * | 2015-05-04 | 2017-03-29 | 北京理工大学 | A kind of machine cut force transducer dynamic protection device |
| CN105033759B (en) * | 2015-06-09 | 2017-08-25 | 上海理工大学 | Mixing multi-method test device for spindle rotation accuracy measurement experiment |
| EP3108996B1 (en) * | 2015-06-23 | 2017-09-13 | Dr. Johannes Heidenhain GmbH | Device for measuring displacement of a rotating object |
| CN105223969B (en) * | 2015-09-29 | 2018-06-15 | 河南科技大学 | A kind of sensor mounting adjustment system and laser leveling benchmark device |
| CN105571524B (en) * | 2015-12-16 | 2018-09-07 | 贵州航天计量测试技术研究所 | A kind of transmission shaft angle-measuring equipment based on Circular gratings |
| CN110686634B (en) * | 2019-10-21 | 2024-06-04 | 中国工程物理研究院机械制造工艺研究所 | Displacement sensor fine adjustment device for geometric accuracy detection of rotation axis |
| CN112197699B (en) * | 2020-09-27 | 2022-10-21 | 配天机器人技术有限公司 | Method, system and device for measuring radial runout of machine tool spindle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DD266292B5 (en) * | 1987-11-27 | 1994-02-03 | Pittler Tornos Werkzeugmaschin | DEVICE FOR DETECTING AND EVALUATING SPINDLE LOCK DEVIATION IN MULTI-SPINDLE TREATMENT MACHINES |
| DE102006016919A1 (en) * | 2006-04-08 | 2007-10-11 | Nordmann, Klaus, Dr.-Ing. | Cutting tool`s rotation error/ axial misalignment monitoring device, has sensor to measure value proportional to distance to tool and/or chuck, where alarm signal is generated to notify tolerance exceedance, errors or misalignment of tool |
| CN101458157B (en) * | 2009-01-07 | 2011-06-01 | 西安交通大学 | Dynamic performance integrated test experimental device for high speed principal axis |
| CN201540879U (en) * | 2009-08-25 | 2010-08-04 | 东莞宏威数码机械有限公司 | Lifting position regulation device |
| CN103418369B (en) * | 2012-05-16 | 2015-07-08 | 中国石油化工股份有限公司 | Catalyst for propylene preparation through olefin disproportionation |
| CN203418369U (en) * | 2013-06-09 | 2014-02-05 | 沈阳机床(集团)有限责任公司 | Sensor position adjusting device for rotation error detection of main shaft |
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Denomination of invention: Sensor position adjusting device for spindle rotation error detection Effective date of registration: 20190307 Granted publication date: 20150708 Pledgee: National Development Bank Pledgor: Shenyan Machine Tool (Group) Co., Ltd. Registration number: 2019210000006 |
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Date of cancellation: 20200728 Granted publication date: 20150708 Pledgee: CHINA DEVELOPMENT BANK Pledgor: SHENYANG MACHINE TOOL (Group) Co.,Ltd. Registration number: 2019210000006 |
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Denomination of invention: Sensor position adjusting device for spindle rotation error detection Effective date of registration: 20200730 Granted publication date: 20150708 Pledgee: China Development Bank Liaoning Branch Pledgor: SHENYANG MACHINE TOOL (Group) Co.,Ltd. Registration number: Y2020210000039 |
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