CN104020716A - Detection device for keeping precision of numerically controlled rotary table - Google Patents
Detection device for keeping precision of numerically controlled rotary table Download PDFInfo
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- CN104020716A CN104020716A CN201410275478.5A CN201410275478A CN104020716A CN 104020716 A CN104020716 A CN 104020716A CN 201410275478 A CN201410275478 A CN 201410275478A CN 104020716 A CN104020716 A CN 104020716A
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Abstract
The invention belongs to the technical field of numerically controlled machine tool detection and particularly relates to a detection device for keeping the precision of a numerically controlled rotary table. The detection device comprises a platform body, a guide rail base, a sliding track, a manual lifting table, a lifting table transmission device, a lifting table locking device, a magnetic powder brake, a coupler I, a coupler II, a support, a torque sensor, an adjustable sliding coupler, the rotary table to be detected, a rapid-replacement reference key groove plate, a numerically controlled system, a cooling water tank, a programmable power supply, a collector, a converter, a computer, a digital display dial gauge and a laser interferometer. The automation degree is high, and changes of loads completely depend on changes of exciting current controlled by the computer; the advanced instrument is adopted for collecting data and directly displaying the data on the computer, and data are accurate and reliable; the detection device operates in a twenty-four hour mode without a shutdown, and therefore efficiency is greatly improved.
Description
Technical field
The invention belongs to numerically-controlled machine processing detection technique field, relate in particular to a kind of pick-up unit of numerical control rotating platform precision stability.
Background technology
As traditional accessory kit of numerically-controlled machine---numerical control rotating platform has very important status in whole lathe, and the machining precision of part relies on the precision of numerical control rotating platform to a great extent.And for the numerical control rotating platform that adopts worm and gear as precision indexing element, in use for some time, because wearing and tearing will cause the increase of worm gear worm backlash, make numerical control rotating platform precise decreasing, finally affect the crudy of part.Therefore precision stability becomes an important indicator weighing numerical control rotating platform performance.Accordingly, the exploration of the test verification Apparatus and method for to numerical control rotating platform precision stability also becomes new problem urgently to be resolved hurrily.
At present, traditional solution of this problem is relatively backward, and thinking is narrower.In view of the amount detecting is precision, it is greatly associated with added load, and therefore whole process need constantly changes load and makes numerical control rotating platform work in maximum conditions or approach under maximum conditions.Existing basic means is the method that adopts expense people effort, on the table top of numerical control rotating platform, installs weight additional, simulation sport car, and special messenger guard, then changed by manual detection precision after shutting down dismounting weight.Because wear extent is slight change, detect authentic data, need long-term process, and need special messenger to record and analyze data, and adjust all suitable difficulties (lifting, dismounting weight loaded down with trivial details dangerous) of load at every turn, therefore this method cost is higher, efficiency is extremely low, adds too much artificial participation, and it detects the data obtained larger error.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, provide a kind of and raise the efficiency, reduce the test verification platform of the numerical control rotating platform precision stability that data error and automaticity are high.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of pick-up unit of numerical control rotating platform precision stability, comprise platform body, its special character is, described platform body side is fixedly connected with track base by screw, the lifting table gearing that described track base inside is provided with rail plate and is slidably connected with described rail plate, the upper end of described lifting table gearing is provided with hand-operated lifting platform, described hand-operated lifting platform two ends are provided with lifting table locking device, on described hand-operated lifting platform, be fixedly connected with quick-changing type reference key frid and be positioned at the turntable to be measured on quick-changing type reference key frid, described turntable outside surface to be measured is provided with sliding adjustable shaft coupling, described platform body top is connected with magnetic powder brake, and described magnetic powder brake is connected with computing machine by programmable power supply, converter successively, described platform body top is fixedly connected with bearing by screw and is fixed on the torque sensor on described bearing, and described torque sensor is connected with Acquisition Instrument, and described Acquisition Instrument is connected with computing machine by converter, described torque sensor is connected with magnetic powder brake and sliding adjustable shaft coupling respectively by shaft coupling I, shaft coupling II, described hand-operated lifting platform top is provided with digital display dial gauge, and the contact of described digital display dial gauge is close proximity to the outside surface of turntable to be measured, and described digital display dial gauge is connected with computing machine, described computing machine is connected with laser interferometer.
The invention has the beneficial effects as follows: automaticity of the present invention is high, the variation of load relies on the variation of computer-controlled exciting current completely; Use advanced instrument to carry out data acquisition, be directly shown in computing machine, data accurately and reliably; Twenty four hours is not shut down operation, greatly raises the efficiency.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described magnetic powder brake is connected with cooling water tank.
Adopt the beneficial effect of above-mentioned further scheme to be, in operational process, use cooling water tank to carry out cooling to magnetic powder brake incessantly.
Further, described turntable to be measured is by digital control system control linkage.
Adopt the beneficial effect of above-mentioned further scheme to be, by the rotation of digital control system control turntable to be measured, drive the rotation of torque sensor and magnetic powder brake.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cut-open view of Fig. 1 middle guide seat;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the enlarged drawing at I place in Fig. 3;
In figure, 1, platform body; 2, track base; 3, hand-operated lifting platform; 4, lifting table gearing; 5, lifting table locking device; 6, magnetic powder brake; 7, shaft coupling I; 8, torque sensor; 9, bearing; 10, shaft coupling II; 11, sliding adjustable shaft coupling; 12, turntable to be measured; 13, quick-changing type reference key frid; 14, digital control system; 15, digital display dial gauge; 16, computing machine; 17, converter; 18, programmable power supply; 19, Acquisition Instrument; 20, cooling water tank; 21, laser interferometer; 22, rail plate.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
A kind of pick-up unit of numerical control rotating platform precision stability, comprise platform body 1, its special character is, described platform body 1 side is fixedly connected with track base 2 by screw, the lifting table gearing 4 that described track base 2 inside are provided with rail plate 22 and are slidably connected with described rail plate 22, the upper end of described lifting table gearing 4 is provided with hand-operated lifting platform 3, described hand-operated lifting platform 3 two ends are provided with lifting table locking device 5, on described hand-operated lifting platform 3, be fixedly connected with quick-changing type reference key frid 13 and be positioned at the turntable to be measured 12 on quick-changing type reference key frid 13, described turntable to be measured 12 outside surfaces are provided with sliding adjustable shaft coupling 11, described platform body 1 top is connected with magnetic powder brake 6, and described magnetic powder brake 6 is connected with computing machine 16 by programmable power supply 18, converter 17 successively, described platform body 1 top is fixedly connected with bearing 9 by screw and is fixed on the torque sensor 8 on described bearing 9, and described torque sensor 8 is connected with Acquisition Instrument 19, and described Acquisition Instrument 19 is connected with computing machine 16 by converter 17, described torque sensor 8 is connected with magnetic powder brake 6 and sliding adjustable shaft coupling 11 respectively by shaft coupling I 7, shaft coupling II 10, described hand-operated lifting platform 3 tops are provided with digital display dial gauge 15, and the contact of described digital display dial gauge 15 is close proximity to the outside surface of turntable 12 to be measured, and described digital display dial gauge 15 is connected with computing machine 16, described turntable to be measured 12 is by digital control system 14 control linkages, described computing machine 16 is connected with laser interferometer 21.
The present invention uses like this, turntable 12 to be measured is fixedly installed on hand-operated lifting platform 3 end faces by quick change reference key frid 13, high according to turntable 12 to be measured center, drive moving up and down of hand-operated lifting platform 3 in the vertical directions by lifting table gearing 4, make center high and magnetic powder brake 6, torque sensor 8, turntable 12 to be measured center high consistent.Center height whole consistent after, by lifting table locking device 5, the position of hand-operated lifting platform 3 is fixed.Now by shaft coupling I 7, shaft coupling II 10, sliding adjustable shaft coupling 11, magnetic powder brake 6, torque sensor 8 and turntable to be measured 12 are in series.Control turntable 12 to be measured by digital control system 14 and rotate, and then drive torque sensor 8, magnetic powder brake 6 to rotate.Computing machine 16 is controlled programmable power supply 18 through RS232-485 converter 17, changes the exciting current size of supplying with magnetic powder brake 6, makes magnetic powder brake 6 produce the load torque that hinders its rotation, is the load that adds to turntable 12 to be measured.In this process, torque, rotating speed, power can gather and be delivered to computing machine 16 by Acquisition Instrument 19.After the operation that meets specified loads amount and test duration, detect the phase closing precision of turntable 12 to be measured by digital display dial gauge 15 and laser interferometer 21, obtain in real time precision and lose data, be the precision stability energy of turntable 12 to be measured.Use when laser interferometer, need to make shaft coupling II 10 throw off and being connected of torque sensor 8, and move installation laser interferometer 21 after completing along sliding adjustable shaft coupling 11 endoporus.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. the pick-up unit of a numerical control rotating platform precision stability, comprise platform body, it is characterized in that, described platform body side is fixedly connected with track base by screw, the lifting table gearing that described track base inside is provided with rail plate and is slidably connected with described rail plate, the upper end of described lifting table gearing is provided with hand-operated lifting platform, described hand-operated lifting platform two ends are provided with lifting table locking device, on described hand-operated lifting platform, be fixedly connected with quick-changing type reference key frid and be positioned at the turntable to be measured on quick-changing type reference key frid, described turntable outside surface to be measured is provided with sliding adjustable shaft coupling, described platform body top is connected with magnetic powder brake, and described magnetic powder brake is connected with computing machine by programmable power supply, converter successively, described platform body top is fixedly connected with bearing by screw and is fixed on the torque sensor on described bearing, and described torque sensor is connected with Acquisition Instrument, and described Acquisition Instrument is connected with computing machine by converter, described torque sensor is connected with magnetic powder brake and sliding adjustable shaft coupling respectively by shaft coupling I, shaft coupling II, described hand-operated lifting platform top is provided with digital display dial gauge, and the contact of described digital display dial gauge is close proximity to the outside surface of turntable to be measured, and described digital display dial gauge is connected with computing machine, described computing machine is connected with laser interferometer.
2. the pick-up unit of a kind of numerical control rotating platform precision stability according to claim 1, is characterized in that, described magnetic powder brake is connected with cooling water tank.
3. the pick-up unit of a kind of numerical control rotating platform precision stability according to claim 1, is characterized in that, described turntable to be measured is by digital control system control linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275478.5A CN104020716B (en) | 2014-06-19 | 2014-06-19 | Detection device for keeping precision of numerically controlled rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275478.5A CN104020716B (en) | 2014-06-19 | 2014-06-19 | Detection device for keeping precision of numerically controlled rotary table |
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| Publication Number | Publication Date |
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| CN104020716A true CN104020716A (en) | 2014-09-03 |
| CN104020716B CN104020716B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410275478.5A Active CN104020716B (en) | 2014-06-19 | 2014-06-19 | Detection device for keeping precision of numerically controlled rotary table |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525412A (en) * | 2016-12-27 | 2017-03-22 | 青海华鼎装备制造有限公司 | Overall performance detection platform for rotary table part and detection method thereof |
| CN109421003A (en) * | 2017-08-24 | 2019-03-05 | 艾塔尔公司 | Positioning device in frame structure |
| CN113601260A (en) * | 2021-06-30 | 2021-11-05 | 深圳市蓝蓝科技有限公司 | Detection apparatus for numerical control revolving stage precision retentivity |
| CN114354075A (en) * | 2022-01-26 | 2022-04-15 | 苏州古田自动化科技有限公司 | Numerical control turntable detection equipment and detection method thereof |
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| CN106525412A (en) * | 2016-12-27 | 2017-03-22 | 青海华鼎装备制造有限公司 | Overall performance detection platform for rotary table part and detection method thereof |
| CN106525412B (en) * | 2016-12-27 | 2019-03-15 | 青海华鼎装备制造有限公司 | A kind of rotary table component comprehensive performance detection platform and detection method |
| CN109421003A (en) * | 2017-08-24 | 2019-03-05 | 艾塔尔公司 | Positioning device in frame structure |
| CN113601260A (en) * | 2021-06-30 | 2021-11-05 | 深圳市蓝蓝科技有限公司 | Detection apparatus for numerical control revolving stage precision retentivity |
| CN114354075A (en) * | 2022-01-26 | 2022-04-15 | 苏州古田自动化科技有限公司 | Numerical control turntable detection equipment and detection method thereof |
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| Publication number | Publication date |
|---|---|
| CN104020716B (en) | 2017-01-11 |
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Denomination of invention: A detection device for accuracy retention of NC turntable Effective date of registration: 20220510 Granted publication date: 20170111 Pledgee: China Postal Savings Bank Corporation Yantai Fushan District sub branch Pledgor: YANTAI UNIVERSAL MACHINE TOOL ACCESSORY GROUP CO.,LTD.|YANTAI UNIVERSAL MACHINE TOOL ACCESSORY GROUP CO.,LTD. Registration number: Y2022980005308 |