CN201931328U - Automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals - Google Patents
Automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals Download PDFInfo
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- CN201931328U CN201931328U CN2010206468703U CN201020646870U CN201931328U CN 201931328 U CN201931328 U CN 201931328U CN 2010206468703 U CN2010206468703 U CN 2010206468703U CN 201020646870 U CN201020646870 U CN 201020646870U CN 201931328 U CN201931328 U CN 201931328U
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Abstract
The utility model discloses an automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals. A motor rotor is fixed to a bottom plate through a fixture, a cutting tool is mounted on a rotary spindle of a cutting head and driven by a moving operating table fixed to the bottom plate, and a vibration and acceleration sensor is fixed to a housing of the cutting head and connected with a signal processing circuit through a vibration signal transmitter. When the automatic tool setting device is operated, the cutting head is driven by the moving operating table to drive the cutting tool to perpendicularly feed to the motor rotor, and cutting force is generated at the moment the cutting tool contacts with the motor rotor. The alternating cutting force leads to vibration of the cutting head, the vibration and acceleration sensor senses the vibration, and output vibration signals are processed by the vibration signal transmitter and the signal processing circuit to obtain tool setting signals. An insulating board is omitted from the automatic tool setting device, so that conduction interference to cutting and filing is avoided. The automatic tool setting device adapts to all-condition periods, and meets continuous automatic production, and the requirements of maintenance and machine adjustment are lowered.
Description
Technical field
The utility model relates to the device of automatic tool preset, especially relates to a kind of full-automatic balance straightener of rotor automatic tool preset device that utilizes vibration signal.
Background technology
Motor is important production and daily necessities, and rotor wherein is the important process parts of motor., reasons such as shape asymmetric, process and assemble error inhomogeneous owing to material, the rotor of harsh output exists amount of unbalance inevitably.In the operation process of motor, the dynamic loading that amount of unbalance produces will act on stationary parts, thereby cause vibration, noise and properties of product degeneration.Therefore must carry out dynamic balancing to rotor.
Rotor dynamic balancing calibration equipment in the production can be divided into two big classes, promptly manual rotor dynamic balancing machine and the full-automatic rotor dynamic balancing machine proofreaied and correct.Manual correction dynamic balancing machine cost is low, but its production efficiency is low, equilibrium process relies on workman's experience, general balance quality is not high, and its cutting quantity to rotor is more, cause the rotor electric property to weaken easily motor performance is degenerated, so be difficult to satisfy the production needs of the rotor of high-efficiency high-quality.In contrast to this, full-automatic rotor dynamic balancing machine production efficiency height, the balance quality height can carry out quality optimization to the rotor cutting, but the machine price is more expensive relatively.Along with the development of China's motor industry, adopt full-automatic rotor dynamic balancing machine to become inexorable trend at present.
Full-automatic rotor dynamic balancing machine in working angles, the problem of cutting tool that key issue is cutting tool and rotor that solve.Particularly, when the rotor cutting goes to weigh, judge cutting tool and rotor position contacting first exactly, i.e. tool setting point, and as reference point, thereby control cutting tool amount of feeding control cutting quality.Therefore tool setting point determines that cutting precision is had fundamental influence.
For general machining apparatus, as lathe and milling machine etc., what adopt usually is that the trial cut method is determined the tool setting point.Promptly under the manual method of operation, slowly travelling table, and the situation that contacts of observing cutting tool and workpiece, wait to find have iron filings to fly out, and can hear after the sound, think that then cutter has contacted with workpiece, write down this point as tool setting point or processing basic point, carry out follow-up processing.This mode can't realize in enormous quantities and high-precision production because the existence of artifact can't realize automation, and repeatable accuracy is lower.For Digit Control Machine Tool and automatically processing device, what adopt usually is acquiescence tool setting point.Promptly, get one of them and carry out artificial tool setting, find the tool setting point same batch workpiece, later on all workpiece all with this tool setting point as datum mark.Because the wearing and tearing of the influence of form and position tolerance own and out-of-roundness or anchor clamps all can make actual tool setting point depart from this acquiescence tool setting point between the workpiece, so adopt acquiescence can't guarantee cutting precision to cutter mechanism.
" a kind of full-automatic balancing machine automatic positioning equipment " of Chinese patent ZL200720113068.9 proposed insulation board and separated cutter (together with the base of tool) and rotor, and utilizes both to contact the method that conduction is judged tool setting point.This method is simple and practical, but in actual applications, and the iron filings that cut can be attached on the insulation board and occur misleading, and need clear up iron filings termly, and this can interrupt the continuity of work and lower efficiency.Document " research of heavy system and key technology thereof is gone in the dynamic balancing numerical control ", " electromechanical engineering " 2005 22 volumes 5 phase 4-8 pages or leaves, the method that provides is to utilize bearing to rotate the formed oil film electric capacity in back, adopts the driving voltage of high frequency to measure changes in capacitance, and judges the tool setting point of cutter with this.Owing to adopt high-frequency excitation signal, introduced High-frequency Interference simultaneously, influenced the reliability of signal.In addition, when just bringing into use, bearing, after the break-in of using longer a period of time, just enters stable working condition because there is the phenomenon that misleads equally in the microcosmic out-of-flatness on surface.Chinese patent 200920295380 has provided the method that a kind of dynamic oil film that utilizes bearing carries out tool setting.The shortcoming of this method is to be the clean grease of bearing replacing termly, uses inconvenient.
Summary of the invention
The purpose of this utility model is to provide a kind of full-automatic balance straightener of rotor automatic tool preset device that utilizes vibration signal, be for the full-automatic balance straightener of rotor provide do not cut in a kind of accurate positioning, simple in structure, the course of work that iron filings disturb can operation steady in a long-term the device of automatic tool preset
The technical solution adopted in the utility model is:
The utility model comprises anchor clamps, rotor, cutting tool, rotary main shaft, base plate, cutting head, travelling table, vibration acceleration sensor, vibration signal transmitter and signal processing circuit; Rotor is fixed on the base plate by anchor clamps, be arranged in rotor under cutting tool be installed on the rotary main shaft of cutting head, drive towards rotor vertically mobile by the travelling table that is fixed on the base plate, vibration acceleration sensor then is fixed on the shell of cutting head, and vibration acceleration sensor is connected with signal processing circuit through the vibration signal transmitter.
Described signal processing circuit comprises low pass filter, rectification circuit, envelope testing circuit and comparison circuit; The rectified signal of original vibration signal behind low pass filter and rectification circuit of vibration signal transmitter output, rectified signal input envelope testing circuit gets envelope signal, envelope signal input comparison circuit obtains final tool setting signal, obtains tool setting point signal by follow-up single-chip microcomputer or PLC.
Compare with background technology, the beneficial effect that the utlity model has is:
1) simple in structure, the reliability height is easy to realize.
2) cancelled insulation board, the conducting of having avoided cutting iron to cut is disturbed.
3) adapt to full operating mode period, and can adapt to continuous automatic production, reduced the requirement that maintenance and machine are adjusted.
Description of drawings
Fig. 1 is the structural representation of the utility model device.
Fig. 2 is signal acquisition circuit figure.
Fig. 3 is each signal schematic representation.
Among the figure: 1, anchor clamps, 2, rotor, 3, cutting tool, 4, rotary main shaft, 5, base plate, 6, cutting head, 7, travelling table, 8, vibration acceleration sensor, 9, the vibration signal transmitter, 10, signal processing circuit, 11, low pass filter, 12, rectification circuit, 13, the envelope testing circuit, 14, comparison circuit.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model comprises anchor clamps 1, rotor 2, cutting tool 3, rotary main shaft 4, base plate 5, cutting head 6, travelling table 7, vibration acceleration sensor 8, vibration signal transmitter 9 and signal processing circuit 10; Rotor 2 is fixed on the base plate 5 by anchor clamps 1, be arranged in rotor 2 under cutting tool 3 be installed on the rotary main shaft 4 of cutting head 6, drive towards rotor 2 vertically mobile by the travelling table 7 that is fixed on the base plate 5, vibration acceleration sensor 8 then is fixed on the shell of cutting head 6, and vibration acceleration sensor 8 is connected with signal processing circuit 10 through vibration signal transmitter 9.
As shown in Figure 2, described signal processing circuit 10 comprises low pass filter 11, rectification circuit 12, envelope testing circuit 13 and comparison circuit 14; The rectified signal B of original vibration signal A behind low pass filter 11 and rectification circuit 12 of vibration signal transmitter 9 outputs, rectified signal B input envelope testing circuit 13 gets envelope signal C, envelope signal C input comparison circuit 14 obtains final tool setting signal D, obtains tool setting point signal by follow-up single-chip microcomputer or PLC.U1 among Fig. 2, U2, U3, U4 and U5 are TLC2254.
Each signal waveforms is referring to Fig. 3 during work, and when cutting tool 3 during with rotor 2 critical contacts, the original vibration signal of vibration signal transmitter 9 outputs is the original vibration signal A among the figure, the sign mutation point P in the signal
ATool setting point for the needs differentiation; Original vibration signal A is by low pass filter 11, and input rectification circuit 12 after the elimination High-frequency Interference, obtain rectified signal B, the sign mutation point P among the rectified signal B
BTool setting point for the needs differentiation; Signal B is imported the envelope signal C that envelope testing circuit 13 obtains signal B, the catastrophe point P among the envelope signal C
CTool setting point for the needs differentiation; Envelope signal C imports comparison circuit 14, with the threshold value C that sets
CRelatively, obtain final tool setting signal D, the high-low level trip point P of tool setting signal D is the tool setting point, obtains tool setting point signal by follow-up single-chip microcomputer or PLC.Adopt this tool setting mode to improve the reliability and the accuracy of tool setting signal effectively.
Claims (2)
1. the full-automatic balance straightener of rotor automatic tool preset device that utilizes vibration signal, it is characterized in that: comprise anchor clamps (1), rotor (2), cutting tool (3), rotary main shaft (4), base plate (5), cutting head (6), travelling table (7), vibration acceleration sensor (8), vibration signal transmitter (9) and signal processing circuit (10); Rotor (2) is fixed on the base plate (5) by anchor clamps (1), be arranged in rotor (2) under cutting tool (3) be installed on the rotary main shaft (4) of cutting head (6), drive towards rotor (2) vertically mobile by the travelling table (7) that is fixed on the base plate (5), vibration acceleration sensor (8) then is fixed on the shell of cutting head (6), and vibration acceleration sensor (8) is connected with signal processing circuit (10) through vibration signal transmitter (9).
2. a kind of full-automatic balance straightener of rotor automatic tool preset device that utilizes vibration signal according to claim 1, it is characterized in that: described signal processing circuit (10) comprises low pass filter (11), rectification circuit (12), envelope testing circuit (13) and comparison circuit (14); The rectified signal (B) of original vibration signal (A) behind low pass filter (11) and rectification circuit (12) of vibration signal transmitter (9) output, rectified signal (B) input envelope testing circuit (13) gets envelope signal (C), envelope signal (C) input comparison circuit (14) obtains final tool setting signal (D), obtains tool setting point signal by follow-up single-chip microcomputer or PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206468703U CN201931328U (en) | 2010-12-06 | 2010-12-06 | Automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206468703U CN201931328U (en) | 2010-12-06 | 2010-12-06 | Automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals |
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| Publication Number | Publication Date |
|---|---|
| CN201931328U true CN201931328U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206468703U Expired - Lifetime CN201931328U (en) | 2010-12-06 | 2010-12-06 | Automatic tool setting device used for fully automatic motor rotor balance correction machine and using vibration signals |
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| Country | Link |
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| CN (1) | CN201931328U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091968A (en) * | 2010-12-06 | 2011-06-15 | 杭州集智机电设备制造有限公司 | Vibration signal-based automatic tool setting device for full-automatic motor rotor balance calibrating machine |
| CN102862096A (en) * | 2012-09-17 | 2013-01-09 | 李理 | Automatic knife aligning device of numerical-control machine tool |
| CN103143988A (en) * | 2013-03-31 | 2013-06-12 | 苏州科技学院 | Method for precisely detecting contact between miniature cutter and workpiece during cutting process |
| CN109693145A (en) * | 2019-01-13 | 2019-04-30 | 深圳大学 | A kind of tool setting device and its alignment methods improving cutter rotating deviation |
| CN113465823A (en) * | 2020-06-16 | 2021-10-01 | 江苏星宇电机有限公司 | Rotor dynamic balance correcting device |
-
2010
- 2010-12-06 CN CN2010206468703U patent/CN201931328U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091968A (en) * | 2010-12-06 | 2011-06-15 | 杭州集智机电设备制造有限公司 | Vibration signal-based automatic tool setting device for full-automatic motor rotor balance calibrating machine |
| CN102091968B (en) * | 2010-12-06 | 2012-09-19 | 杭州集智机电股份有限公司 | Vibration signal-based automatic tool setting device for full-automatic balance calibrating machine for motor rotor |
| CN102862096A (en) * | 2012-09-17 | 2013-01-09 | 李理 | Automatic knife aligning device of numerical-control machine tool |
| CN103143988A (en) * | 2013-03-31 | 2013-06-12 | 苏州科技学院 | Method for precisely detecting contact between miniature cutter and workpiece during cutting process |
| CN109693145A (en) * | 2019-01-13 | 2019-04-30 | 深圳大学 | A kind of tool setting device and its alignment methods improving cutter rotating deviation |
| CN113465823A (en) * | 2020-06-16 | 2021-10-01 | 江苏星宇电机有限公司 | Rotor dynamic balance correcting device |
| CN113465823B (en) * | 2020-06-16 | 2024-01-30 | 江苏星宇电机有限公司 | Correcting device for dynamic balance of rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU JIZHI MECHATRONIC CO., LTD. Free format text: FORMER NAME: HANGZHOU JIZHI MECHATRONIC EQUIPMENT MANUFACTURE Owner name: HANGZHOU JIZHI MECHATRONIC EQUIPMENT MANUFACTURE Free format text: FORMER NAME: HANGZHOU JIZHI ELECTROMECHANICAL EQUIPMENT MANUFACTURE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Three 310030 Hangzhou Road, Zhejiang province Xihu District Xiyuan No. 10 pier three Patentee after: HANGZHOU JIZHI MECHATRONIC Co.,Ltd. Address before: Three 310030 Hangzhou Road, Zhejiang province Xihu District Xiyuan No. 10 pier three Patentee before: Hangzhou Chi Chi mechanical and electrical equipment manufacturing Limited by Share Ltd. Address after: Three 310030 Hangzhou Road, Zhejiang province Xihu District Xiyuan No. 10 pier three Patentee after: Hangzhou Chi Chi mechanical and electrical equipment manufacturing Limited by Share Ltd. Address before: Three 310030 Hangzhou Road, Zhejiang province Xihu District Xiyuan No. 10 pier three Patentee before: Hangzhou Jizhi Mechatronic Equipment Manufacture Co.,Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110817 Effective date of abandoning: 20120919 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110817 Effective date of abandoning: 20120919 |