CN104827267B - Automobile meter pointer crimping position control module and control method - Google Patents
Automobile meter pointer crimping position control module and control method Download PDFInfo
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- CN104827267B CN104827267B CN201510259931.8A CN201510259931A CN104827267B CN 104827267 B CN104827267 B CN 104827267B CN 201510259931 A CN201510259931 A CN 201510259931A CN 104827267 B CN104827267 B CN 104827267B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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Abstract
Automobile meter pointer crimping position control module and control method, are related to the mounting technique of automotive electronic industry's gauge pointer.It is inaccurate in order to solve gauge pointer crimping depth survey, and lacks automatic control process, cause instrument it is fragile, and low production efficiency problem.The present invention need not using structure is spacing and artificial judgment by the way of, while pressure signal curve entirety is monitored, according to built-in algorithms for the feature critical position of pressure curve judges, when crimping enters abnormal depth, the abnormal change of operator's curve can be notified the very first time, and pressure is adjusted, to guarantee that instrument is not damaged, monitoring range and condition freely can set.No matter in industrial circle or research field, its application also will bring actual interests for enterprise, provide facility for researcher.Indicator, dial plate and motor can be protected well, improve the success rate for once crimping, and then improve production efficiency.The present invention is applied to the pointer crimping of automobile instrument or other instrument.
Description
Technical field
The present invention relates in automotive electronic industry gauge pointer crimping position control technology.
Background technology
In automotive electronic industry, gauge pointer is arranged in the rotating shaft of motor, drives indicators turn by motor.Pointer is installed
When, pressure is applied to pointer using pressurized equipment, during this, needs to judge that Fig. 2 show crimping to crimping depth
The normal situation of depth, crimping depth are excessive, and pointer or machine shaft can be caused to damage.Traditional pointer crimping severity control
Using structure is spacing plus artificial judgment by the way of, or by the way of being monitored to pressure.It is spacing plus manually sentence in structure
In disconnected mode, in order to protect the dial plate and dial plate fineness of fragility, structural member can not choose that metal etc. is hard, nonabradable material
Matter, but judged using the banking stop of the softwood matter such as plastics or lucite, as long-time is used, banking stop surface mill
Damage, it is inaccurate that direct pilot connects severity control, make instrument general assembly various structure problems occur, lid scratch dial plate etc. such as on indicator,
Sometimes even due to suppressing, depth is excessive to be caused to damage to motor for instrument, and takes manual type to judge, to productive temp shadow
Ring very big, reduce production efficiency.During pointer crimping, pressure history under normal circumstances is：Pressure gradually increases from 0
Greatly, decline after reaching peak value, then in stable state within a period of time.The monitoring of conventional pressure value is indifferent in pressing process
Pressure change, is only concerned result pressure value, during to being monitored to pressure, simply monitoring stationary value and being whether result pressure value surpasses
Cross threshold value, and monitor less than peak value above, when monitoring result shows that pressure is qualified, indicator or machine shaft often because
Damage for surge pressure is excessive, thus this pressure monitoring mode data be single, it is impossible to which concrete press process is studied,
The in esse problem of solution equipment.Whether qualified to pressure value be also that the degree of accuracy of judgement is relatively low by manually judging,
And lack automatic control process, detect pressure it is unqualified when instrument damage.
The content of the invention
The invention aims to it is inaccurate to solve gauge pointer crimping depth survey, and lacks and automatically controlled
Journey, cause instrument it is fragile, and low production efficiency problem, there is provided a kind of automobile meter pointer crimping position control module and control
Method processed.
Automobile meter pointer crimping position control module of the present invention is included with lower unit：
Pressure signal collecting unit：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Force value；
Peak value judging unit：Whether the pressure value for gathering is judged more than Fmax, and start decompression when judged result is to be
Signal transmitting unit, when judged result is no while difference in activation pressure computing unit and peak value judging unit；
Depression signal transmitting element：Decompression Controlling signal is sent to pressurized equipment；
Pressure differential computing unit：Calculate the difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential；
Pressure differential judging unit：Whether the pressure differential is judged less than Δ F, and start average meter when judged result is to be
Unit is calculated, starts pressure drop judging unit when judged result is no；
Average calculation unit：Calculate the mean value of the pressure in nearest T time；
Average judging unit：Whether the mean value is judged less than Fmin, and when judged result is to be while starting report
Alert unit and stop signal transmitting element, return difference in activation pressure computing unit when judged result is no；
Alarm unit：Alarm signal is sent to warning device；
Stop signal transmitting element：Stop signal is sent to pressurized equipment；
Pressure drop judging unit：Whether pressure is judged equal to or less than F0, and when judged result is to be while starting
Alarm unit and stop signal transmitting element, when judged result is no while difference in activation pressure computing unit unit and pressure drop
Judging unit；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
The sampling period is per second more than or equal to 50 times.
The control module also includes：
Display unit：The pressure value collected by pressure signal collecting unit is included on screen.
The control module also includes：
Parameter setting unit, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0
Or the sampling period.
Automobile meter pointer crimping position control method of the present invention is comprised the following steps：
Pressure signal acquisition step：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Force value；
Peak value judges step：Whether the pressure value for gathering is judged more than Fmax, and perform decompression when judged result is to be
Signal forwarding step, performs pressure differential calculation procedure simultaneously when judged result is no and peak value judges step；
Depression signal forwarding step：Decompression Controlling signal is sent to pressurized equipment, and peak is performed after the step terminates
Value judges step；
Pressure differential calculation procedure：The difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential are calculated, and
Pressure differential is performed after the step terminates and judges step；
Pressure differential judges step：Whether the pressure differential is judged less than Δ F, and average meter is performed when judged result is to be
Step is calculated, pressure drop is performed when judged result is no and is judged step；
Mean value computation step：The mean value of the pressure in nearest T time is calculated, and average is performed after the step terminates
Judge step；
Average judges step：Whether the mean value is judged less than Fmin, and when judged result is to be while performing report
Alert step and stop signal forwarding step, return when judged result is no and perform pressure differential calculation procedure；
Alarming step：Alarm signal is sent to warning device, and stop signal is performed after the step terminates and send step
Suddenly；
Stop signal forwarding step：Stop signal is sent to pressurized equipment；
Pressure drop judges step：Whether pressure is judged equal to or less than F0, and when judged result is to be while performing
Alarming step and stop signal send, and perform pressure differential calculation procedure simultaneously when judged result is no and pressure drop judges step
Suddenly；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
The sampling period is per second more than or equal to 50 times.
The control method also includes：
Step display：The pressure value collected by pressure signal acquisition step is included on screen.
The control method also includes：
Parameter setting step, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0
Or the sampling period.
The present invention can adopt the software being embedded in master system to realize, during crimping to gauge pointer in real time
The change of pressure value be monitored.By built-in algorithms, and the corresponding curve characteristic of depressed position, judge whether pressure value accords with
Close limit value to require, in the case where limit value requirement is not met, using corresponding remedial measure.Pressure value reflection depression depths become
Change, if any the abnormal operator that warns at once.Pressure value to being monitored carries out the calibration of crucial position limit value, by with external perimysium reference pressure
The reading of force value and correspondence, according to algorithm, determine accurate limit value as reference pressure value, make curve accurately show pressure value
Change.
According to the numerical value for being collected, it is stipulated that rational pressure limit, rational depression depths had both been defined.
Display unit of the present invention, can will show that boundary is designed to three parts：
1st, numerical value display interface：The multigroup real-time pressure value for being monitored is shown mainly, once supervise beyond set numerical value
Control scope, by the unqualified warning of interface prompt depth；
2nd, image display interfaces：The main change for showing monitored pressure value in monitoring period, and according to pressure value
Curve is drawn, the abscissa of curve represents the time, and ordinate represents pressure value, can intuitively observe according to curve and be monitored
The change of pressure value, observes the scope of pressure value, and can preserve image, so as to observational study；
3rd, interface is set：In parameter setting unit and Parameter setting step, can also increase for configuring host computer with
The function of the basic communication setting between the machine of position, the basic communication setting include serial port, baud rate, verification mode, and
Stop position etc., the pressure indication range of configuration monitoring curve, time span, and limit value (reach the pressure of alert if
Value).The present invention need not using structure is spacing and artificial judgment by the way of, just can be straight by the tendency to pressure value image
Connect and determine pointer and whether push too deep, judge whether normal range (NR) is projected at the top of electric machine main shaft, reach abnormal depth, in pressure
In the case of more than Fmax, pressure is adjusted in time, it is ensured that instrument will not be damaged, in the case that instrument is damaged, and alarm
And stop pressurization.
Complete pressure curve is judged：Whole pressing process is presented in face of operator and researcher, and
While monitoring pressure signal curve is overall, is judged and reported to the police to whether its profile meets the requirements, it is according to built-in algorithms, right
Judged in the feature critical position of pressure curve；When crimping enters abnormal depth, can notify that operator is bent the very first time
The abnormal change of line.The platform of display is not only provided, can also treat as the instrument of warning.In industrial circle or neck is studied no matter
Actual interests also will be brought for enterprise in domain, its application, provide facility for researcher.
Monitoring range and condition freely can set：Old-fashioned pressure display interface can only specify fixed pressure limit, can not
It is adjusted, as enterprise is also differed into instrument huge number, the depth requirements of crimping are produced.Will in order to preferably adapt to product
Ask, improve Products Compatibility, the present invention can freely set monitoring range for Height Standard to be monitored, while freely setting
The fixed normal data for needing warning, when reaching warning numerical value, reminds researcher and operator.This makes monitoring performance without the property adhered rigidly to,
The free degree is higher；Human oriented design, setting various parameters are convenient and swift：Various parameters can be directly inputted at same interface, be entered
The study and research of row system.Pressure criteria numerical value, automatic correction chart picture can be given.One to be cut to user simple to operation for ancestor
Purport, operating unit is dropped at least.Control module and control method can be improved on the basis of the present invention, increase password
Input function, only needs to input operation person's password, input control parameter, study preservation during use, three steps solve the problems, such as setting.
The present invention is judged and is controlled by the monitoring to pressure value the depth of automobile meter pointer crimping, accurate to protect
Motor for instrument, is that product and quality provide powerful guarantee.After using the invention, existing structure banking stop need not be adopted, it is complete
U.S. protection indicator, dial plate and motor, improve the success rate for once crimping, and then improve production efficiency.Product quality is guaranteed.
Apply and judge on host computer, depart from artificial judgment, accuracy is higher, and productive temp is substantially accelerated, yield is lifted.Can be enterprise
Industry retrieves more than 500,000 yuan of economic loss every year.
Description of the drawings
Fig. 1 is the flow chart of automobile meter pointer crimping position control method of the present invention；
During Fig. 2 is embodiment one, in the case that crimping depth is qualified, gauge pointer is shown with the matching relationship of machine shaft
It is intended to；
Fig. 3 is the pressue-graph in gauge pointer installation process in embodiment one, and abscissa represents time, ordinate
Represent pressure.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated with reference to Fig. 1 to Fig. 3, the automobile instrument described in present embodiment refers to
Pin crimping position control module is included with lower unit：
Pressure signal collecting unit：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Force value；
Peak value judging unit：Whether the pressure value for gathering is judged more than Fmax, and start decompression when judged result is to be
Signal transmitting unit, when judged result is no while difference in activation pressure computing unit and peak value judging unit；
Depression signal transmitting element：Decompression Controlling signal is sent to pressurized equipment；
Pressure differential computing unit：Calculate the difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential；
Pressure differential judging unit：Whether the pressure differential is judged less than Δ F, and start average meter when judged result is to be
Unit is calculated, starts pressure drop judging unit when judged result is no；
Average calculation unit：Calculate the mean value of the pressure in nearest T time；
Average judging unit：Whether the mean value is judged less than Fmin, and when judged result is to be while starting report
Alert unit and stop signal transmitting element, return difference in activation pressure computing unit when judged result is no；
Alarm unit：Alarm signal is sent to warning device；
Stop signal transmitting element：Stop signal is sent to pressurized equipment；
Pressure drop judging unit：Whether pressure is judged equal to or less than F0, and when judged result is to be while starting
Alarm unit and stop signal transmitting element, when judged result is no while difference in activation pressure computing unit unit and pressure drop
Judging unit；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
In actual mechanical process, normal pressure curve should gradually be increased from 0, and the rate of climb is very fast, reaches peak
Reduced after value slightly, subsequently into first time pressure plateau A in plateau, i.e. Fig. 3.The underproof feelings of crimping depth
Condition has following several：The first, more than 120 newton in pressure uphill process；Second, after pressure reaches peak value, reduce quickly
To 0；The third, after pressure reaches peak value, is gradually lowered, it is impossible to enter plateau；4th kind, pressure is reduced after reaching peak value
To first time pressure plateau A, the state continues for some time rear pressure and glides, into second pressure plateau B, should
Pressure value under state is F0, and F0 is certain value between 0 to Fmin.For rear three kinds of situations, pressure all can be in certain time
Point is reduced to F0, therefore, can be by judging whether pressure judges less than F0 whether crimping depth is qualified.
Automobile meter pointer crimping position control module described in present embodiment is by the software reality being embedded in host computer
It is existing.The control module can carry out pressure monitoring to the overall process of pointer crimping.Pressure during first determining whether to crimp is maximum
Value is whether peak value exceedes threshold value Fmax, the Fmax ＜ 120N, if it exceeds the threshold, then send to pressurized equipment reduce pressure at once
Control signal is reducing pressure.Then judge whether the pressure differential in nearest T time is less than Δ F (if applying the stressed time
Less than T, then do not start the unit, T values generally take 3 seconds, and T values be more than pressure from 0 time for rising to peak value), judge knot
Fruit illustrates that peak value has occurred if YES, then, and pressure value comes into the first time pressure in plateau, i.e. Fig. 3
Stable state A, if the pressure mean values in this period are more than Fmin, illustrates that it is qualified to crimp depth, such as Fig. 2 institutes
Show.If average is less than Fmin, illustrates that crimping depth is excessive, Fmin has been unable to reach to the pressure that pointer applies, has now been needed
Report to the police and pointed out, and stop signal is sent to pressurized equipment, to stop applying pressure.If the pressure in nearest T time
More than Δ F, difference then illustrates that pressure value does not enter into plateau, in this case, if certain time pressure value is exactly F0,
Then explanation crimping depth is excessive, assembles unqualified, now needs warning to be pointed out, and sends stop signal to pressurized equipment,
To stop applying pressure.
Specific embodiment two：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, the control module also includes：
Display unit：The pressure value collected by pressure signal collecting unit is included on screen.
Specific embodiment three：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, the control module also includes：
Parameter setting unit, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0
Or the sampling period.
Specific embodiment four：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, the sampling period is per second more than or equal to 50 times.
Specific embodiment five：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, Fmax ＜ 120N, Fmin=30N, Δ F=1N, F0=20N.
Specific embodiment six：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, the span of T is 3s.
Specific embodiment seven：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, pressure value is detected using pressure sensor.
Specific embodiment eight：Present embodiment is that the automobile meter pointer crimping position described in embodiment one is controlled
The further restriction of module, in present embodiment, warning device is acoustic-optic alarm.
Specific embodiment nine：Present embodiment is illustrated with reference to Fig. 1, the automobile meter pointer crimping described in present embodiment
Position control method is comprised the following steps：
Pressure signal acquisition step：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Force value；
Peak value judges step：Whether the pressure value for gathering is judged more than Fmax, and perform decompression when judged result is to be
Signal forwarding step, performs pressure differential calculation procedure simultaneously when judged result is no and peak value judges step；
Depression signal forwarding step：Decompression Controlling signal is sent to pressurized equipment, and peak is performed after the step terminates
Value judges step；
Pressure differential calculation procedure：The difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential are calculated, and
Pressure differential is performed after the step terminates and judges step；
Pressure differential judges step：Whether the pressure differential is judged less than Δ F, and average meter is performed when judged result is to be
Step is calculated, pressure drop is performed when judged result is no and is judged step；
Mean value computation step：The mean value of the pressure in nearest T time is calculated, and average is performed after the step terminates
Judge step；
Average judges step：Whether the mean value is judged less than Fmin, and when judged result is to be while performing report
Alert step and stop signal forwarding step, return when judged result is no and perform pressure differential calculation procedure；
Alarming step：Alarm signal is sent to warning device, and stop signal is performed after the step terminates and send step
Suddenly；
Stop signal forwarding step：Stop signal is sent to pressurized equipment；
Pressure drop judges step：Whether pressure is judged equal to or less than F0, and when judged result is to be while performing
Alarming step and stop signal send, and perform pressure differential calculation procedure simultaneously when judged result is no and pressure drop judges step
Suddenly；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
Specific embodiment ten：Present embodiment is that the automobile meter pointer crimping position described in embodiment nine is controlled
The further restriction of method, in present embodiment, the control method also includes：
Step display：The pressure value collected by pressure signal acquisition step is included on screen.
Specific embodiment 11：Present embodiment is to the automobile meter pointer crimping position control described in embodiment seven
The further restriction of method processed, in present embodiment, the control method also includes：
Parameter setting step, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0
Or the sampling period.
Specific embodiment 12：Present embodiment is to the automobile meter pointer crimping position control described in embodiment seven
The further restriction of method processed, in present embodiment, the sampling period is per second more than or equal to 50 times.
Specific embodiment 13：Present embodiment is to the automobile meter pointer crimping position control described in embodiment nine
The further restriction of method processed, in present embodiment, Fmax=120N, Fmin=30N, Δ F=1N, F0=20N.
Specific embodiment 14：Present embodiment is to the automobile meter pointer crimping position control described in embodiment seven
The further restriction of method processed, in present embodiment, the span of T is 3s.
Specific embodiment 15：Present embodiment is to the automobile meter pointer crimping position control described in embodiment nine
The further restriction of method processed, in present embodiment, pressure value is detected using pressure sensor.
Specific embodiment party 16：Present embodiment is that the automobile meter pointer crimping position described in embodiment nine is controlled
The further restriction of method, in present embodiment, warning device is acoustic-optic alarm.
Claims (10)
1. automobile meter pointer crimping position control module, it is characterised in that：The control module is included with lower unit：
Pressure signal collecting unit：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Value；
Peak value judging unit：Whether the pressure value for gathering is judged more than Fmax, and start depression signal when judged result is to be
Transmitting element, when judged result is no while difference in activation pressure computing unit and peak value judging unit；
Depression signal transmitting element：Decompression Controlling signal is sent to pressurized equipment；
Pressure differential computing unit：Calculate the difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential；
Pressure differential judging unit：Whether the pressure differential is judged less than Δ F, and start mean value computation list when judged result is to be
Unit, starts pressure drop judging unit when judged result is no；
Average calculation unit：Calculate the mean value of the pressure in nearest T time；
Average judging unit：Whether the mean value is judged less than Fmin, and report to the police single while starting when judged result is to be
Unit and stop signal transmitting element, return difference in activation pressure computing unit when judged result is no；
Alarm unit：Alarm signal is sent to warning device；
Stop signal transmitting element：Stop signal is sent to pressurized equipment；
Pressure drop judging unit：Whether pressure is judged equal to or less than F0, and when judged result is to be while starting warning
Unit and stop signal transmitting element, when judged result is no, difference in activation pressure computing unit and pressure drop judge single simultaneously
Unit；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
2. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：The control module
Also include：
Display unit：The pressure value collected by pressure signal collecting unit is included on screen.
3. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：The control module
Also include：
Parameter setting unit, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0 or adopts
The sample cycle.
4. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：Fmax=120N,
Fmin=30N, Δ F=1N, F0=20N.
5. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：The span of T
For 3s.
6. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：Pressure value is using pressure
Force snesor is detecting.
7. automobile meter pointer crimping position control module according to claim 1, it is characterised in that：Warning device is sound
Light alarm device.
8. automobile meter pointer crimping position control method, it is characterised in that：The method is comprised the following steps：
Pressure signal acquisition step：The pressure between automobile meter pointer and electric machine main shaft is gathered and is stored according to the sampling period
Value；
Peak value judges step：Whether the pressure value for gathering is judged more than Fmax, and perform depression signal when judged result is to be
Forwarding step, performs pressure differential calculation procedure simultaneously when judged result is no and peak value judges step；
Depression signal forwarding step：Decompression Controlling signal is sent to pressurized equipment, and peak value is performed after the step terminates and sentenced
Disconnected step；
Pressure differential calculation procedure：The difference of the maximum pressure in nearest T time and minimum pressure, i.e. pressure differential are calculated, and at this
Step performs pressure differential after terminating and judges step；
Pressure differential judges step：Whether the pressure differential is judged less than Δ F, and mean value computation step is performed when judged result is to be
Suddenly, pressure drop is performed when judged result is no judge step；
Mean value computation step：The mean value of the pressure in nearest T time is calculated, and average is performed after the step terminates and judged
Step；
Average judges step：Whether the mean value is judged less than Fmin, and when judged result is to be while performing step of reporting to the police
Rapid and stop signal forwarding step, returns when judged result is no and performs pressure differential calculation procedure；
Alarming step：Alarm signal is sent to warning device, and stop signal forwarding step is performed after the step terminates；
Stop signal forwarding step：Stop signal is sent to pressurized equipment；
Pressure drop judges step：Whether pressure is judged equal to or less than F0, and when judged result is to be while performing warning
Step and stop signal send, and perform pressure differential calculation procedure simultaneously when judged result is no and pressure drop judges step；
Described Fmax, Fmin, Δ F, T and F0 are preset by user, and F0 ＜ Fmin ＜ Fmax.
9. automobile meter pointer crimping position control method according to claim 8, it is characterised in that：The control method
Including：
Step display：The pressure value collected by pressure signal acquisition step is included on screen.
10. automobile meter pointer crimping position control method according to claim 8, it is characterised in that：The controlling party
Method also includes：
Parameter setting step, for providing external data input port, for arrange parameter Fmax, Fmin, Δ F, T, F0 or adopts
The sample cycle.
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| CN108963361B (en) * | 2018-08-01 | 2020-09-29 | 西安闻泰电子科技有限公司 | Battery rolling monitoring method and device |
| CN110814701B (en) * | 2019-11-20 | 2021-03-16 | 航天科技控股集团股份有限公司 | Full-automatic pointer press-fitting system and method based on pressure feedback |
| CN110814702B (en) * | 2019-11-20 | 2021-03-09 | 航天科技控股集团股份有限公司 | Full-automatic pointer press-fitting system and method based on height feedback |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3818889A1 (en) * | 1988-06-03 | 1989-12-07 | Adalbert Fritsch | DEVICE FOR EQUIPPING CIRCUIT BOARDS, ESPECIALLY WITH SMD COMPONENTS |
| JP2502855B2 (en) * | 1991-08-19 | 1996-05-29 | 本田技研工業株式会社 | Needle assembly equipment |
| CN101625272B (en) * | 2008-07-11 | 2011-01-05 | 延锋伟世通汽车电子有限公司 | Method and device for detecting installing condition of automobile instrument pointer |
| CN102990331B (en) * | 2012-11-16 | 2015-06-03 | 合肥永高电子科技有限公司 | Instrument indicator pressing system based on machine vision recognition |
| CN103962829B (en) * | 2014-05-05 | 2016-05-04 | 航天科技控股集团股份有限公司 | Automatic protection multichannel automobile meter pointer compression bonding apparatus and compression bonding method |
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