CN101937203A - Force and displacement monitoring device and method for controlling press mounting assembly by utilizing same - Google Patents
Force and displacement monitoring device and method for controlling press mounting assembly by utilizing same Download PDFInfo
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- CN101937203A CN101937203A CN 201010226916 CN201010226916A CN101937203A CN 101937203 A CN101937203 A CN 101937203A CN 201010226916 CN201010226916 CN 201010226916 CN 201010226916 A CN201010226916 A CN 201010226916A CN 101937203 A CN101937203 A CN 101937203A
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Abstract
The invention relates to a force and displacement monitoring device and a method. The device comprises a force and displacement sensor for measuring the pressure of press mounting and the displacement of a press mounting part, a device with a main control unit for correlating force measured in a press mounting process with a displacement value, a device for standardizing force and displacement related curves measured by a plurality of normal press mounting tests, a device for comparing the dynamically measured force and displacement related curves with a standardized related curve obtained through tests and a device for controlling signal generation. The method comprises the following steps of: starting the measurement and the record of the press mounting process when the press mounting begins; correlating a measured force value and a measured displacement value to obtain and store related curves; calculating to obtain a standardized reference curve on the basis of the force and displacement related curves measured by the plurality of normal press mounting tests; and during press mounting, comparing the dynamically measured force and displacement related curves with the standardized reference curve and outputting corresponding control signals for controlling a press mounting execution mechanism to adjust press mounting force and speed.
Description
Technical field
The present invention relates to mechanical assembling field, be meant a kind of power and displacement monitoring devices and methods therefor that press-fits assembling that be used to control especially.
Background technology
Usually, when press-fiting cooperation, for example common gear and axle in the auto industry, bearing and housing etc., if its tolerance clearance and or the magnitude of interference do not reach the requirement of design technology, the unstable properties that may cause entire product tends to cause whole expensive component to scrap, and is final even may cause recalling of whole automobile.And this quality problems that press-fit cooperation are not easy to be found very much.
Existing employing power and displacement prison side instrument find to press-fit the fitness in the process in the prior art, the DMF-P A300 type power and the displacement monitor of the production of for example German Kistler company.The variation of power when press-fiting by the force transducer collection, the change in location when press-fiting by the displacement transducer monitoring.The parameter of power is set as Y-axis, and displacement parameter is set as X-axis, and the corresponding relation between them is generated a curve, promptly produces the corresponding matching parts and press-fits the power of process and the change curve of displacement, for example: as shown in Figure 1.Program by the processor internal programmable, come the fitting curves that normally press-fit of specific features are defined tolerance, and different tolerance window can be set, come visual numerical value judgement is made in the cooperation that press-fits of tested parts according to these tolerance window: particularly to applied force, the final position of power, overload, press-fit speed, and rate of curve etc. is made comparison and judgement, thereby the cooperation that guarantees whole assembling process reaches designing requirement, and can find because the product parts machining tolerance, perhaps assembly technology, problems such as surface lubrication produce press-fits quality problems.
But above-mentioned traditional press-fit cooperate monitor to propose to utilize Monitoring Data to carry out truly real-time control as yet, thereby still depend on operator's ACTIVE CONTROL, and fail to realize robotization control press-fiting process.Therefore, need really a kind ofly new can overcome the deficiencies in the prior art, improve and press-fit the automatic monitoring technique that cooperates efficient.
Summary of the invention
One aspect of the present invention purpose provides the method that the control of a kind of power of utilization and displacement monitoring device press-fits assembling, makes to press-fit process and be able in real time accurately control.
For achieving the above object, press-fit the method for control, mainly comprise step: begin promptly to start measurement and the record that press-fits process press-fiting according to the power of utilization of the present invention and displacement monitoring device; The power that measures and shift value are carried out related, draw its correlation curve and preserved; Based on to a plurality of normally press-fit the test carry out power and the displacement correlation curve that actual measurement obtained, calculate its standardized reference curve; When press-fiting, the power of kinetic measurement is compared with above-mentioned standardized reference curve with the displacement correlation curve, the output corresponding PWM is used for control and press-fits topworks at every turn; And regulate power and the speed that press-fits according to this pwm control signal by described topworks, make to press-fit process and in according to the defined scope of standardized reference curve, carry out.
The present invention's purpose on the other hand provides power and the displacement monitoring device that a kind of control press-fits assembling, comprise force transducer, displacement transducer, I/O, main control unit, display device, operation keyboard and power supply, wherein force transducer is used for measuring the force value that press-fits process, displacement transducer is used to measure the displacement that press-fits part, and described display device comprises LCD display, led state display lamp; Described main control unit is a single-chip microcomputer, comprises CPU processor, internal memory, storer and is stored in application in the data-carrier store.Described main control unit comprises that the power that will measure carries out the related device that draws its correlation curve with shift value in press-fiting process; To normally press-fit test and carry out power and displacement correlation curve that actual measurement obtained and carry out standardized device a plurality of; In press-fiting process, the device that the power and the displacement correlation curve of kinetic measurement are compared with the standardization correlativity curve of obtaining through test; And the control signal generating apparatus, being used for according to above-mentioned comparative result, the output corresponding PWM so that regulate power and the speed press-fit, makes to press-fit process and carry out in according to the defined scope of standardized reference curve.Described storer comprises the unit of the power that measures of record and displacement correlation curve and the unit of the standardization reference curve that calculates.
Advantage of the present invention is to measure power and the displacement correlation curve that press-fits process in real time by measurement module, and the actual curve that records compared with standardized reference curve in real time, calculate control signal and regulate power and the speed that press-fits, thereby implement to press-fit according to desirable standardization reference curve, realization press-fits the accurately control in real time of assembling, has greatly improved processing quality and working (machining) efficiency.
Description of drawings
Fig. 1 is the correlation curve synoptic diagram that illustrates corresponding to power that press-fits process and displacement;
Fig. 2 is the system chart according to the power of the specific embodiment of the invention and displacement monitoring device;
Fig. 3 is according to power of the present invention and the displacement monitoring device synoptic diagram according to some reference curves simulation production standard curves;
Fig. 4 illustrates the application of 1 type tolerance window for describing the power and the displacement correlation curve of rotor press-mounting process;
Fig. 5 A-5B illustrates the application of 2 type tolerance window for describing the power and the displacement correlation curve of rotor press-mounting process; And
Fig. 6 is that the several exemplary of tolerance window able to programme given an example.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
The present invention is used to control the power that press-fits assembling and displacement monitoring device shown in the block diagram of Fig. 2, mainly comprises force transducer, displacement transducer, I/O, main control unit, display device, supervisory keyboard and power supply.Wherein, force transducer is used for measuring the force value that press-fits process, can adopt for example strain chip force transducer or other any suitable force transducer; Displacement transducer is used to measure the displacement that press-fits part, can adopt for example resistance-type displacement transducer or increment type magnetic grid displacement transducer etc.; Sensor signal is handled through being delivered to main control unit by input after the analog to digital conversion.Main control unit adopts single-chip microcomputer, comprises CPU processor, internal memory, storer and is stored in various application in the storer.Power according to the present invention can be selected to be connected external unit by various interface with the displacement monitoring device, comprises but is not only limited to, for example I/O interface, Profibus interface and RS232 interface.Display device can comprise LCD display and led state display lamp.Supervisory keyboard can include but not limited to: membrane keyboard, touch-screen keyboard etc.
Below with rotor press-fit process as an example, introduce the method that the present invention utilizes power and displacement monitoring device control rotor press-mounting assembling process.
In R﹠D process by normal rotor press-mounting is cooperated carry out the several times test after, obtain some power reference curve relevant with displacement, as measured curve a among Fig. 3 and curve b, calculate the standardized curve N of simulation then based on the measured curve that is drawn, the process data of obtaining product processing by test is as follows: when guaranteeing to be pressed into armature spindle in the rotor, be pressed into the distance should guarantee 34.7+/-0.1mm, in whole process, pressure must be greater than 15KN, less than 20KN, even if qualified.
In process of the test, at first, we are provided with 1 default type tolerance window on program
As shown in Figure 4, described the power and the displacement correlation curve of rotor press-mounting process, wherein setting maximum displacement and least displacement is respectively Smax=34.8mm, Smin=34.6mm; Then, 2 type tolerance window are set again on program
Set maximum pressure and minimum pressure and be respectively Fmax=20KN, Fmin=15KN is respectively shown in Fig. 5 A to Fig. 5 B.
When normal running, if the displacement that measures drops in the condition of 1 type tolerance window, that is:
Simultaneously, the present invention judges to 2 type tolerance window that also Fig. 5 A-5B illustrates the application of 2 type tolerance window for describing the power and the displacement correlation curve of rotor press-mounting process; If pressure assembling force is in the tolerance window condition of 2 types:
Then as defective.
Shown in Figure 6, for giving an example according to the several exemplary of tolerance window able to programme of the present invention.
Utilize power of the present invention and displacement monitoring device can monitor by following operation and press-fit process, and judge whether overproofly, concrete steps are as follows:
-press-fit rotor and begin promptly to start measurement and the record that press-fits process;
-power and the shift value that measures carried out related, draw its correlation curve and preserved;
-based on to a plurality of normally press-fit the test carry out power and the displacement correlation curve that actual measurement obtained, calculate its standardized reference curve;
-when press-fiting, the power of kinetic measurement to be compared with above-mentioned standardized reference curve with the displacement correlation curve at every turn, the output corresponding PWM is used for control and press-fits topworks; And
-regulate power and the speed that press-fits by described topworks according to this pwm control signal, make to press-fit process and in according to the defined scope of standardized reference curve, carry out.
According to above-mentioned principle, power of the present invention comprises that with the main control unit of displacement monitoring device power and the shift value that will measure carry out the related device that draws its correlation curve in press-fiting process; To normally press-fit test and carry out power and displacement correlation curve that actual measurement obtained and carry out standardized device a plurality of; In press-fiting process, the device that the power and the displacement correlation curve of kinetic measurement are compared with the standardization correlativity curve of obtaining through test; And the control signal generating apparatus, being used for according to above-mentioned comparative result, the output corresponding PWM so that regulate power and the speed press-fit, makes to press-fit process and carry out in according to the defined scope of standardized reference curve.In addition, storer comprises the unit of the power that measures of record and displacement correlation curve and the unit of the standardization reference curve that calculates.
The present invention press-fits the power and the displacement correlation curve of process by real-time measurement, and the actual data that record are compared in real time with standardized reference curve, calculate control signal corresponding according to the condition of judging forms and regulate power and the speed that press-fits, thereby implement to press-fit according to the desirable defined scope of standardization reference curve, realization press-fits the accurately control in real time of assembling, has greatly improved processing quality and working (machining) efficiency.
The present invention can be at hardware, realizes in software or both combinations.A kind of combination of typical hardware and software can be a general calculation machine system, has a kind of computer program, when this program is written into and carries out, controls this computer system and realizes method as herein described.Can on a computing machine, realize according to the method for specific embodiments of the invention, also can realize that different elements is distributed in the computer system of several mutual UNICOMs and realizes with the mode of concentrating with distribution mode.Method of the present invention can be embedded in the middle of the computer program, and it comprises all features that can realize methods described herein, can realize these methods when this program is loaded in the computer system.Computer program herein, software or software application refer to arbitrary expression of a cover instruction of any language, code or symbol, be used to make computer system have information processing capability with directly or afterwards or both realize following two kinds of specific functions with having both at the same time: a) be converted to another kind of language, code or symbol; B) duplicate with different material form.Yet computer system or other equipment of any suitable realization this paper method described herein can be suitable for.
Although the preferable embodiment of the present invention has been described in explanation by way of example above, protection scope of the present invention is not limited in above-mentioned explanation, but is defined by all technical characterictics and the equivalent technologies feature thereof that appended claim provides.Persons skilled in the art are understandable that, under the essence and marrow prerequisite that does not deviate from the present invention and instructed, any modifications and variations may still drop within the protection domain of claim of the present invention.
Claims (4)
1. method of utilizing power and displacement monitoring device to press-fit control mainly comprises step:
-begin promptly to start measurement and the record that press-fits process press-fiting;
-power and the shift value that measures carried out related, draw its correlation curve and preserved;
-based on to a plurality of normally press-fit the test carry out power and the displacement correlation curve that actual measurement obtained, calculate its standardized reference curve;
-when press-fiting, the power of kinetic measurement to be compared with above-mentioned standardized reference curve with the displacement correlation curve at every turn, the output corresponding PWM is used for control and press-fits topworks; And
-regulate power and the speed that press-fits by described topworks according to this pwm control signal, make to press-fit process and in according to the defined scope of standardized reference curve, carry out.
2. a control press-fits the power and the displacement monitoring device of assembling, comprise force transducer, displacement transducer, I/O, main control unit, display device, operation keyboard and power supply, wherein force transducer is used for measuring the force value that press-fits process, displacement transducer is used to measure the displacement that press-fits part, and described display device comprises LCD display, led state display lamp; Described main control unit is a single-chip microcomputer, comprises CPU processor, internal memory, storer and is stored in application in the data-carrier store; It is characterized in that described main control unit comprises
The power that will measure in press-fiting process is carried out the related device that draws its correlation curve with shift value;
To normally press-fit test and carry out power and displacement correlation curve that actual measurement obtained and carry out standardized device a plurality of;
In press-fiting process, the device that the power and the displacement correlation curve of kinetic measurement are compared with the standardization correlativity curve of obtaining through test; And
The control signal generating apparatus is used for according to above-mentioned comparative result, and the output corresponding PWM so that regulate power and the speed press-fit, makes to press-fit process and carry out in according to the defined scope of standardized reference curve;
Described storer comprises the unit of the power that measures of record and displacement correlation curve and the unit of the standardization reference curve that calculates.
3. power according to claim 2 and displacement monitoring device is characterized in that described operation keyboard is a membrane keyboard.
4. power according to claim 3 and displacement monitoring device is characterized in that described operation keyboard is the touch-screen keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010226916 CN101937203A (en) | 2010-04-28 | 2010-07-04 | Force and displacement monitoring device and method for controlling press mounting assembly by utilizing same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010162222 | 2010-04-28 | ||
| CN201010162222.5 | 2010-04-28 | ||
| CN 201010226916 CN101937203A (en) | 2010-04-28 | 2010-07-04 | Force and displacement monitoring device and method for controlling press mounting assembly by utilizing same |
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| CN101937203A true CN101937203A (en) | 2011-01-05 |
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| CN2010202599452U Expired - Fee Related CN202003184U (en) | 2010-04-28 | 2010-07-04 | Force and displacement monitoring device |
| CN 201010226916 Pending CN101937203A (en) | 2010-04-28 | 2010-07-04 | Force and displacement monitoring device and method for controlling press mounting assembly by utilizing same |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104416944A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416943A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416945A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN106843175A (en) * | 2017-02-20 | 2017-06-13 | 上海天沐自动化仪表有限公司 | A kind of intelligent press mounting system based on high-end manufacture Yu process monitoring |
| CN107967847A (en) * | 2017-12-11 | 2018-04-27 | 大连高马艺术设计工程有限公司 | A kind of display stress size directly perceived and the learning aids and control system in direction |
| US10061309B1 (en) | 2017-08-15 | 2018-08-28 | International Business Machines Corporation | Cognitive press-fit force analyzer and monitoring system |
| CN112146709A (en) * | 2020-10-26 | 2020-12-29 | 弗兰科希管件系统（上海）有限公司 | Plug-in assembly monitoring method, device and system |
| CN114518735A (en) * | 2022-02-18 | 2022-05-20 | 广汽丰田汽车有限公司 | Method, device and equipment for monitoring press-in process of sealing ring and readable storage medium |
| CN115446574A (en) * | 2022-10-14 | 2022-12-09 | 智新科技股份有限公司 | Neural network-based rotor compression ring press-fitting method and system |
| CN115816018A (en) * | 2022-11-28 | 2023-03-21 | 重庆长安新能源汽车科技有限公司 | Press mounting mechanism and test and press mounting method for fuel cell |
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| CN202003184U (en) * | 2010-04-28 | 2011-10-05 | 上海洋航机电设备有限公司 | Force and displacement monitoring device |
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Cited By (17)
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| CN104416944A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416943A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416945A (en) * | 2013-09-09 | 2015-03-18 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416945B (en) * | 2013-09-09 | 2017-04-12 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN104416943B (en) * | 2013-09-09 | 2017-04-12 | 蛇目缝纫机工业株式会社 | Electric press, bend-point detection method, and program |
| CN106843175B (en) * | 2017-02-20 | 2019-07-19 | 上海天沐自动化仪表有限公司 | A kind of intelligent press mounting system based on high-end manufacture and process monitoring |
| CN106843175A (en) * | 2017-02-20 | 2017-06-13 | 上海天沐自动化仪表有限公司 | A kind of intelligent press mounting system based on high-end manufacture Yu process monitoring |
| US10061309B1 (en) | 2017-08-15 | 2018-08-28 | International Business Machines Corporation | Cognitive press-fit force analyzer and monitoring system |
| US10528039B2 (en) | 2017-08-15 | 2020-01-07 | International Business Machines Corporation | Cognitive press-fit force analyzer and monitoring system |
| CN107967847A (en) * | 2017-12-11 | 2018-04-27 | 大连高马艺术设计工程有限公司 | A kind of display stress size directly perceived and the learning aids and control system in direction |
| CN112146709A (en) * | 2020-10-26 | 2020-12-29 | 弗兰科希管件系统（上海）有限公司 | Plug-in assembly monitoring method, device and system |
| CN114518735A (en) * | 2022-02-18 | 2022-05-20 | 广汽丰田汽车有限公司 | Method, device and equipment for monitoring press-in process of sealing ring and readable storage medium |
| CN114518735B (en) * | 2022-02-18 | 2024-03-15 | 广汽丰田汽车有限公司 | Monitoring method, device and equipment for sealing ring pressing process and readable storage medium |
| CN115446574A (en) * | 2022-10-14 | 2022-12-09 | 智新科技股份有限公司 | Neural network-based rotor compression ring press-fitting method and system |
| CN115816018A (en) * | 2022-11-28 | 2023-03-21 | 重庆长安新能源汽车科技有限公司 | Press mounting mechanism and test and press mounting method for fuel cell |
| CN117182524A (en) * | 2023-10-26 | 2023-12-08 | 芜湖戎征达伺服驱动技术有限公司 | Intelligent press-fitting equipment and method for auxiliary frame bushing of automobile |
| CN117182524B (en) * | 2023-10-26 | 2024-02-27 | 芜湖戎征达伺服驱动技术有限公司 | Intelligent press-fitting equipment and method for auxiliary frame bushing of automobile |
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Application publication date: 20110105 |