CN108176732B - A kind of the power-off method for tracing and system of the high indicator of mould - Google Patents
A kind of the power-off method for tracing and system of the high indicator of mould Download PDFInfo
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- CN108176732B CN108176732B CN201711471647.2A CN201711471647A CN108176732B CN 108176732 B CN108176732 B CN 108176732B CN 201711471647 A CN201711471647 A CN 201711471647A CN 108176732 B CN108176732 B CN 108176732B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Presses And Accessory Devices Thereof (AREA)
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Abstract
The invention discloses a kind of power-off method for tracing of the high indicator of mould and systems, the described method includes: the method includes before the high indicator power-off of mould, after the displacement angle that transmission shaft rotates is converted to electric signal, it is exported again to calculation process module, calculates the height of packing compact value of press machine according to electric signal by calculation process module；In the high indicator shutdown transient of mould, the first stop position of encoder at this time is recorded；It restores electricity moment in the high indicator of mould, records the second stop position of encoder at this time；Angular displacement direction of the encoder during power-off is judged according to the first stop position of encoder and the second stop position；Third angular displacement c of the encoder during power-off is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder.The present invention can track power-off during transmission shaft displacement angle, further obviate power-off inter-axle shaft angular displacement generate error, accurately, critically reflect the true height of packing compact of lathe.
Description
Technical field
The present invention relates to press machine field, in particular to the power-off method for tracing and system of a kind of high indicator of mould.
Background technique
The high indicator of mould is equipped on press machine, for showing height of packing compact and height of packing compact limit value.The high indicator of mould
It is that signal is acquired by transmission shaft, transmission shaft is connected with encoder, therefore the angular displacement of transmission shaft can pass through the angle of encoder
Displacement directly conversion obtains.When the high indicator of mould carries out signal sampling by transmission shaft, pass through encoder first for transmission shaft
After displacement angle is converted to electric signal, then it is calculated as height of packing compact.If lathe powers off suddenly, under effect of inertia, transmission
Axis still can rotate a certain angle；In addition, in no power supply for seasonable, if press machine also can because external factor shakes
Cause transmission shaft that angular displacement occurs.Due to the high indicator of existing mould can not track power-off during transmission shaft displacement angle,
The accuracy for affecting its sampled signal, the height of packing compact value for causing it to show are not inconsistent with actual conditions.
Currently, the method for solving the problems, such as this is all to calibrate again to the high indicator of mould.But calibration process is cumbersome, when
Between it is longer, seriously affected production efficiency.
Thus the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of power-off of the high indicator of mould to chase after
Track method and system, it is intended to solve the high indicator of current mould in the case where power-off or shock conditions occur, shown height of packing compact value
Not the problem of not being inconsistent with actual conditions.
In order to achieve the above object, this invention takes following technical schemes:
A kind of power-off method for tracing of the high indicator of mould, includes the following steps:
Before mould high indicator power-off, after the displacement angle that transmission shaft rotates is converted to electric signal by encoder, then export to
Calculation process module is calculated the height of packing compact value of press machine by calculation process module according to electric signal；
In the high indicator shutdown transient of mould, the first stop position of encoder at this time is recorded, and the first of encoder is stopped
The first angular displacement that stop bit sets along clockwise direction relative to the default initial position of encoder is denoted as a；
It restores electricity moment in the high indicator of mould, the second stop position of record encoder at this time, and by the of encoder
Second angular displacement of two stop positions along clockwise direction relative to the default initial position of encoder is denoted as b；
Angular displacement side of the encoder during power-off is judged according to the first stop position of encoder and the second stop position
To；
Encoder is calculated during power-off according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Third angular displacement c.
It is described according to the first angular displacement, the second angular displacement and coding in the power-off method for tracing of the high indicator of the mould
The angular displacement direction of device calculated after the step of third angular displacement c of the encoder during power-off further include:
It is calculated according to the angular displacement direction of encoder and third angular displacement c and lathe in the height of packing compact value of shutdown transient
The height of packing compact value for the moment that lathe restores electricity out.
It is described to be stopped according to the first stop position of encoder and second in the power-off method for tracing of the high indicator of the mould
Stop bit, which is set, judges that angular displacement direction of the encoder during power-off specifically includes:
As a <b < a+180 ° or b < a-180 °, judge that encoder rotates clockwise；
When 0<a-b<180 ° or b>a+180 °, judge that encoder rotates counterclockwise.
It is described according to the first angular displacement, the second angular displacement and coding in the power-off method for tracing of the high indicator of the mould
The angular displacement direction of device calculates third angular displacement c of the encoder during power-off and specifically includes:
When encoder rotates clockwise and a <b < a+180 ° when, then calculate third angular displacement c=b-a；
When encoder rotates clockwise and at b < a-180 °, then c=b+360 ° of-a of third angular displacement is calculated；
When encoder rotates counterclockwise and when 0 < a-b < 180 °, then third angular displacement c=a-b is calculated；
When encoder rotates counterclockwise and at+180 ° of b > a, then third angular displacement c=360 °-b+a is calculated.
In the power-off method for tracing of the high indicator of the mould, the encoder is that absolute value encoder or increment type encode
Device.
A kind of power-off tracing system of the high indicator of mould, comprising:
Encoder exports after the displacement angle of rotation is converted to electric signal, then by electric signal to calculation process mould
Block；
Calculation process module, for referring to according to the height of packing compact value for calculating press machine according to electric signal, and in mould height
Show device shutdown transient, records the first stop position of encoder at this time, and by the first stop position of encoder along side clockwise
A is denoted as to the first angular displacement of the default initial position relative to encoder；It restores electricity moment in the high indicator of mould, records this
When encoder the second stop position, and by the second stop position of encoder along clockwise direction relative to the default of encoder
Second angular displacement of initial position is denoted as b；Judge that encoder exists according to the first stop position of encoder and the second stop position
Angular displacement direction during power-off；And it is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Third angular displacement c of the encoder during power-off.
In the power-off tracing system of the high indicator of the mould, the calculation process module is also used to:
It is calculated according to the angular displacement direction of encoder and third angular displacement c and lathe in the height of packing compact value of shutdown transient
The height of packing compact value for the moment that lathe restores electricity out.
In the power-off tracing system of the high indicator of the mould, the calculation process module includes:
First direction judgment module, for judging that encoder is rotated clockwise as a <b < a+180 ° or b < a-180 °；
Second direction judgment module, for judging that encoder rotates counterclockwise when 0<a-b<180 ° or b>a+180 °.
In the power-off tracing system of the high indicator of the mould, the calculation process module further include:
First angular displacement computing module, for when encoder rotates clockwise and a <b < a+180 ° when, calculate the third angle position
Move c=b-a；
Second angular displacement computing module calculates third angular displacement c for rotating clockwise and at b < a-180 ° when encoder
=b+360°-a；
The third angle is displaced computing module, for rotate counterclockwise and when 0 < a-b < 180 ° when encoder, calculating the third angle position
Move c=a-b；
Fourth angle is displaced computing module, for rotate counterclockwise and at b > a+180 ° when encoder, calculating third angular displacement c
=360°-b+a。
In the power-off tracing system of the high indicator of the mould, the encoder is that absolute value encoder or increment type encode
Device.
Compared to the prior art, in the power-off method for tracing of the high indicator of mould provided by the invention and system, the method
Before the high indicator power-off of mould, after the displacement angle that transmission shaft rotates is converted to electric signal, then export to calculation process mould
Block is calculated the height of packing compact value of press machine by calculation process module according to electric signal；In the high indicator shutdown transient of mould, note
The first stop position of encoder at this time is recorded, and by the first stop position of encoder along clockwise direction relative to encoder
First angular displacement of default initial position is denoted as a；It restores electricity moment in the high indicator of mould, record encoder at this time second stops
Stop bit is set, and by the second stop position of encoder second jiao relative to the default initial position of encoder along clockwise direction
Displacement is denoted as b；Angular displacement of the encoder during power-off is judged according to the first stop position of encoder and the second stop position
Direction；Of encoder during power-off is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Triangular displacement c.The present invention passes through the first stop position before record encoder power-off and the second stop position after encoder power-off
It sets, the direction of rotation of encoder is judged by the first stop position and the second stop position, and calculated further according to direction of rotation
The angular displacement of encoder can track the displacement angle of transmission shaft during powering off, and further obviate power-off inter-axle shaft angle
It is displaced the error generated, the true height of packing compact of press machine accurately, is critically reflected, avoids needing school again after powering
The problem not high with working efficiency is wasted time caused by the high indicator of quasi-mode.
Detailed description of the invention
Fig. 1 is the flow chart of the power-off method for tracing of the high indicator of mould provided by the invention.
Fig. 2 is the rotation of the first embodiment of encoder in the power-off method for tracing of the high indicator of mould provided by the invention
The schematic diagram of state.
Fig. 3 is the rotation of the second embodiment of encoder in the power-off method for tracing of the high indicator of mould provided by the invention
The schematic diagram of state.
Fig. 4 is the rotation of the 3rd embodiment of encoder in the power-off method for tracing of the high indicator of mould provided by the invention
The schematic diagram of state.
Fig. 5 is the rotation of the fourth embodiment of encoder in the power-off method for tracing of the high indicator of mould provided by the invention
The schematic diagram of state.
Fig. 6 is the structural block diagram of the power-off tracing system of the high indicator of mould provided by the invention.
Specific embodiment
The present invention provides the power-off method for tracing and system of a kind of high indicator of mould, to make the purpose of the present invention, technical side
Case and effect are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should be appreciated that
Described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the flow chart of the power-off method for tracing of the high indicator of mould provided by the invention, includes the following steps:
Before the high indicator power-off of S100, mould, after the displacement angle that transmission shaft rotates is converted to electric signal, then export to fortune
Processing module is calculated, calculates the height of packing compact value of press machine according to electric signal by calculation process module.
Specifically, encoder is used to be converted to the motion information of the transmission shaft of the high indicator of mould the angle position of its rotation
Move, then the angular displacement of rotation be converted into output after electric signal and gives calculation process module, calculation process module according to electric signal come
The height of packing compact value of press machine is calculated, electric signal can reflect the displacement of transmission shaft, so as to further calculate
The height of packing compact value of press machine out, furthermore, it is understood that the encoder be absolute value encoder or incremental encoder, preferably
Embodiment in, encoder issue electric signal be digital signal, encoder rotation one circle issue signal be 1024, rotation
One circle indicates that the variation of the height of packing compact value of press machine is 0.1mm.
S200, in the high indicator shutdown transient of mould, the first stop position of record encoder at this time, and by the of encoder
First angular displacement of one stop position along clockwise direction relative to the default initial position of encoder is denoted as a.
In the present embodiment, after the high indicator power-off of mould, due to the effect of inertia of transmission shaft, it still will continue to move,
I.e. encoder can still rotate a certain angle.In the case of this inertia, the angular displacement of transmission shaft is generally less than 180 degree, that is, encodes
The rotation of device be less than half-turn, more specifically for, the angular displacement of transmission shaft is generally less than 150 degree, and the present invention is based on this to implement
Power-off method for tracing provided by the invention.
Specifically, encoder is preset with initial position, the i.e. absolute origin of encoder.Wink is powered off in the high indicator of mould
Between, the stop position of encoder at this time is denoted as the first stop position.The subsequent new stop position further according to encoder is counted
The rotation angle for calculating encoder by the angular displacement of record the first stop position and absolute origin, and restores electricity moment
The angular displacement of the second stop position and absolute origin of encoder, so as to calculate angle of displacement of the encoder during power-off
Degree.
S300, it restores electricity moment in the high indicator of mould, the second stop position of record encoder at this time, and by encoder
Second angular displacement of second stop position along clockwise direction relative to the default initial position of encoder be denoted as b.
In the present embodiment, restores electricity moment in the high indicator of mould, the stop position of encoder at this time is denoted as second and is stopped
Stop bit is set, and by the initial position of itself and preset encoder, i.e., absolute origin is compared, record the second stop position and absolutely
Angular displacement to origin, to further calculate out the rotation angle of encoder.
Specifically, encoder is preset with initial position, the i.e. absolute origin of encoder.Wink is powered off in the high indicator of mould
Between, the stop position of encoder at this time is denoted as the first stop position；In the moment that restores electricity, by the stop position of encoder at this time
It sets and is denoted as the second stop position；By record the first stop position and absolute origin angular displacement a and the second stop position with
The angular displacement b of absolute origin, so as to calculate displacement angle c of the encoder during power-off.
S400, angle position of the encoder during power-off is judged according to the first stop position and the second stop position of encoder
Move direction；
S500, it encoder is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder is powering off
The third angular displacement c of period.
In the present embodiment, the high indicator of mould judges to encode according to the first stop position of encoder and the second stop position
The angular displacement direction of device.Since the inertial rotation amount of power-off inter-axle shaft is usually no more than 180 degree, i.e. the rotation of encoder is less than
Half-turn, thus can by judge the second stop position whether the position and first after the first stop position rotates clockwise 180 °
Between stop position, judge whether encoder rotates clockwise, by judging the second stop position whether in the first stopping
Position rotate 180 ° counterclockwise after position and the first stop position between, judge whether encoder is to rotate counterclockwise.Into
One step calculates the rotation angle of encoder according to the telegoniometer of rotation, wherein 0≤a < 360 °, 0≤b < 360 °, 0≤c < 180.
Specifically, the step S300 is specifically included:
As a <b < a+180 ° or b < a-180 °, judge that encoder rotates clockwise；
When 0<a-b<180 ° or b>a+180 °, judge that encoder rotates counterclockwise.
The step S400 is specifically included:
When encoder rotates clockwise and a <b < a+180 ° when, then calculate third angular displacement c=b-a；
When encoder rotates clockwise and at b < a-180 °, then c=b+360 ° of-a of third angular displacement is calculated；
When encoder rotates counterclockwise and when 0 < a-b < 180 °, then third angular displacement c=a-b is calculated；
When encoder rotates counterclockwise and at b > a+180 °, then third angular displacement c=360 °-b+a is calculated.
In order to better understand the present invention, to carry out power-off method for tracing of the invention below for Fig. 2-Fig. 5 detailed
Illustrate:
Referring to Fig. 2, in the first embodiment, the first angular displacement a of encoder is between 0 ° to 180 °, the second angular displacement
B is between a to a+180 °, so position of second stop position after the first stop position rotates clockwise 180 ° is stopped with first
Between stop bit is set, it can be determined that going out encoder is to rotate clockwise, to further calculate out third angular displacement c=b-a, that is, is compiled
Code device rotates clockwise b-a, and the angular displacement direction and rotation angle further according to encoder calculate the real-time die-filling height of encoder
Angle value.
Referring to Fig. 3, in a second embodiment, the first angular displacement a of encoder is between 0 ° to 180 °, the second angular displacement
B is between a+180 ° to 360 °, the second b > a+180 ° of angular displacement, it is possible to which the second stop position is in the first stop position inverse time
Between position and the first stop position after 180 ° of needle rotation, it is possible to judge that encoder is rotation counterclockwise, thus into
One step calculates third angular displacement c=360 °-b+a, and the direction of rotation and angular displacement goniometer further according to encoder calculate coding
The real-time height of packing compact value of device.
Referring to Fig. 4, in the third embodiment, the first angular displacement a of encoder is between 0 ° to 180 °, the second angular displacement
B at 0 ° between a, wherein 0 < a-b < 180 °, so the second stop position is after the first stop position rotates 180 ° counterclockwise
Between position and the first stop position, it is possible to judge that encoder is rotation counterclockwise, to further calculate out third
Angular displacement c=a-b, angular displacement direction and rotation angle further according to encoder calculate the real-time height of packing compact value of encoder.
Referring to Fig. 5, in the fourth embodiment, the first angular displacement a of encoder is between 180 ° to 360 °, second jiao of position
B is moved between 0 ° Dao a-180 °, therefore b < a-180 °, so the second stop position is after the first stop position rotates clockwise 180 °
Position and the first stop position between, so as to judge that encoder is to rotate clockwise, to further calculate out the
C=b+360 ° of-a of triangular displacement, angular displacement direction and rotation angle further according to encoder calculate the real-time die-filling height of encoder
Angle value.
From above-described embodiment as can be seen that when encoder rotates clockwise or rotates counterclockwise, by by second jiao
Displacement is compared with the first angular displacement, so as to judge the direction of rotation of encoder, further further according to direction of rotation
The rotation angle for calculating encoder can track the displacement angle of transmission shaft during powering off, then the root after restoring electricity
According to the height of packing compact value of the displacement angle amendment display of transmission shaft, the mistake that power-off inter-axle shaft angular displacement generates further is eliminated
Difference accurately, critically reflects the true height of packing compact of press machine, avoids needing to recalibrate the high indicator of mould after powering
Caused by waste time the problem not high with working efficiency.
It further carries out in example, after the step S500 further include:
It is calculated according to the angular displacement direction of encoder and third angular displacement c and lathe in the height of packing compact value of shutdown transient
The practical height of packing compact value for the moment that lathe restores electricity out.
The angular displacement information of transmission shaft is calculated as by the rotation angle by encoder, further according to the angular displacement side of encoder
To punching press can be calculated using press machine in the height of packing compact value of shutdown transient plus or minus the displacement of transmission shaft
The height of packing compact value for the moment that lathe restores electricity, so that the high indicator of mould also can be quasi- in the case where power-off or vibration
The accurate height of packing compact value of true display.
Based on the power-off method for tracing of the high indicator of above-mentioned mould, the present invention also correspondingly provides a kind of breaking for high indicator of mould
Electric tracing system, referring to Fig. 6, the system comprises:
Encoder 10 exports after the displacement angle of rotation is converted to electric signal, then by electric signal to calculation process
Module；
Calculation process module 20, for according to the height of packing compact value for calculating press machine according to electric signal, and in mould height
Indicator shutdown transient records the first stop position of encoder at this time, and by the first stop position of encoder along clockwise
Direction is denoted as a relative to the first angular displacement of the default initial position of encoder；It restores electricity moment, records in the high indicator of mould
Second stop position of encoder at this time, and by the second stop position of encoder along clockwise direction relative to the pre- of encoder
If the second angular displacement of initial position is denoted as b；Encoder is judged according to the first stop position of encoder and the second stop position
Angular displacement direction during power-off；And it is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Third angular displacement c of the encoder during power-off out.
Further, the calculation process module 20 be also used to according to the direction of rotation and third angular displacement c of encoder with
And press machine calculates the height of packing compact value for the moment that press machine restores electricity in the height of packing compact value of shutdown transient.
Further, the calculation process module 20 includes:
First direction judgment module, for judging that encoder is rotated clockwise as a <b < a+180 ° or b < a-180 °；
Second direction judgment module, for judging that encoder rotates counterclockwise when 0<a-b<180 ° or b>a+180 °.
Further, the calculation process module 20 further include:
First angular displacement computing module, for when encoder rotates clockwise and a <b < a+180 ° when, calculate the third angle position
Move c=b-a；
Second angular displacement computing module calculates third angular displacement c for rotating clockwise and at b < a-180 ° when encoder
=b+360°-a；
The third angle is displaced computing module, for rotate counterclockwise and when 0 < a-b < 180 ° when encoder, calculating the third angle position
Move c=a-b；
Fourth angle is displaced computing module, for rotate counterclockwise and at b > a+180 ° when encoder, calculating third angular displacement c
=360°-b+a。
Specifically, the encoder is absolute value encoder or incremental encoder.
Since the power-off method for tracing of the high indicator of mould being described in detail above, details are not described herein.
In conclusion the method includes moulds in the power-off method for tracing and system of the high indicator of mould provided by the invention
Before high indicator power-off, after the displacement angle that transmission shaft rotates is converted to electric signal, then export to calculation process module, by transporting
Calculate the height of packing compact value that processing module calculates press machine according to electric signal；In the high indicator shutdown transient of mould, record is at this time
First stop position of encoder, and by the first stop position of encoder along clockwise direction relative to the default first of encoder
First angular displacement of beginning position is denoted as a；It restores electricity moment in the high indicator of mould, records the second stop position of encoder at this time
It sets, and by the second angular displacement relative to the default initial position of encoder along clockwise direction of the second stop position of encoder
It is denoted as b；Angular displacement direction of the encoder during power-off is judged according to the first stop position of encoder and the second stop position；
The third angle position of the encoder during power-off is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Move c.The present invention is passed through by the first stop position before record encoder power-off and the second stop position after encoder power-off
First stop position and the second stop position judge the direction of rotation of encoder, and calculate encoder further according to direction of rotation
Angular displacement can track the displacement angle of transmission shaft during powering off, and further obviate power-off inter-axle shaft angular displacement and generate
Error, accurately, critically reflect the true height of packing compact of press machine, avoid needing to recalibrate mould height after powering and refer to
Show and wastes time the problem not high with working efficiency caused by device.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (10)
1. a kind of power-off method for tracing of the high indicator of mould, which comprises the steps of:
Before the high indicator power-off of mould, after the displacement angle that transmission shaft rotates is converted to electric signal, then export to calculation process mould
Block is calculated the height of packing compact value of press machine by calculation process module according to electric signal；
In the high indicator shutdown transient of mould, the first stop position of record encoder at this time, and by the first stop position of encoder
It sets the first angular displacement along clockwise direction relative to the default initial position of encoder and is denoted as a；
It restores electricity moment in the high indicator of mould, records the second stop position of encoder at this time, and the second of encoder is stopped
The second angular displacement that stop bit sets along clockwise direction relative to the default initial position of encoder is denoted as b；
Wherein, after the high indicator power-off of mould, the angular displacement of transmission shaft is less than 180 °；
Angular displacement direction of the encoder during power-off is judged according to the first stop position of encoder and the second stop position；
Third of the encoder during power-off is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
Angular displacement c.
2. the power-off method for tracing of the high indicator of mould according to claim 1, which is characterized in that described according to first jiao of position
After the step of direction of rotation of shifting, the second angular displacement and encoder calculates third angular displacement c of the encoder during power-off
Further include:
Machine is calculated in the height of packing compact value of shutdown transient according to the angular displacement direction of encoder and third angular displacement c and lathe
The height of packing compact value for the moment that bed restores electricity.
3. the power-off method for tracing of the high indicator of mould according to claim 2, which is characterized in that described according to encoder
First stop position and the second stop position judge that angular displacement direction of the encoder during power-off specifically includes:
As a <b < a+180 ° or b < a-180 °, judge that encoder rotates clockwise；
When 0 °<a-b<180 ° or b>a+180 °, judge that encoder rotates counterclockwise.
4. the power-off method for tracing of the high indicator of mould according to claim 3, which is characterized in that described according to first jiao of position
The angular displacement direction of shifting, the second angular displacement and encoder calculates third angular displacement c of the encoder during power-off and specifically includes:
When encoder rotates clockwise and a <b < a+180 ° when, then calculate third angular displacement c=b-a；
When encoder rotates clockwise and at b < a-180 °, then c=b+360 ° of-a of third angular displacement is calculated；
When encoder rotates counterclockwise and when 0 ° < a-b < 180 °, then third angular displacement c=a-b is calculated；
When encoder rotates counterclockwise and at b > a+180 °, then third angular displacement c=360 °-b+a is calculated.
5. the power-off method for tracing of the high indicator of mould according to any one of claims 1-4, which is characterized in that the volume
Code device is absolute value encoder or incremental encoder.
6. a kind of power-off tracing system of the high indicator of mould characterized by comprising
Encoder exports after the displacement angle of rotation is converted to electric signal, then by electric signal to calculation process module；
Calculation process module, for calculating the height of packing compact value of press machine according to electric signal, and in the high indicator power-off of mould
Moment, the first stop position of record encoder at this time, and by the first stop position of encoder along clockwise direction relative to
First angular displacement of the default initial position of encoder is denoted as a；It restores electricity moment in the high indicator of mould, records encoder at this time
The second stop position, and by the second stop position of encoder along clockwise direction relative to the default initial position of encoder
The second angular displacement be denoted as b；
Wherein, after the high indicator power-off of mould, the angular displacement of transmission shaft is less than 180 °；
Angular displacement direction of the encoder during power-off is judged according to the first stop position of encoder and the second stop position；With
And the third angle of the encoder during power-off is calculated according to the angular displacement direction of the first angular displacement, the second angular displacement and encoder
It is displaced c.
7. the power-off tracing system of the high indicator of mould according to claim 6, which is characterized in that the calculation process module
It is also used to:
Machine is calculated in the height of packing compact value of shutdown transient according to the angular displacement direction of encoder and third angular displacement c and lathe
The height of packing compact value for the moment that bed restores electricity.
8. the power-off tracing system of the high indicator of mould according to claim 7, which is characterized in that the calculation process module
Include:
First direction judgment module, for judging that encoder is rotated clockwise as a <b < a+180 ° or b < a-180 °；
Second direction judgment module, for judging that encoder rotates counterclockwise when 0<a-b<180 ° or b>a+180 °.
9. the power-off tracing system of the high indicator of mould according to claim 8, which is characterized in that the calculation process module
Further include:
First angular displacement computing module, for when encoder rotates clockwise and a <b < a+180 ° when, calculate third angular displacement c=
b-a；
Second angular displacement computing module calculates third angular displacement c=b+ for rotating clockwise and at b < a-180 ° when encoder
360°-a；
The third angle is displaced computing module, for rotate counterclockwise and when 0 < a-b < 180 ° when encoder, calculating third angular displacement c=
a-b；
Fourth angle is displaced computing module, for rotate counterclockwise and at b > a+180 ° when encoder, calculating third angular displacement c=
360°-b+a。
10. according to the power-off tracing system of the high indicator of mould described in claim 6-9 any one, which is characterized in that described
Encoder is absolute value encoder or incremental encoder.
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| CN201711471647.2A CN108176732B (en) | 2017-12-29 | 2017-12-29 | A kind of the power-off method for tracing and system of the high indicator of mould |
| JP2020554352A JP6887189B2 (en) | 2017-12-29 | 2018-12-19 | Power failure tracing method and system for mold altitude indicator |
| PCT/CN2018/121891 WO2019128788A1 (en) | 2017-12-29 | 2018-12-19 | Power outage tracking method and system for die height indicator |
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| CN200963762Y (en) * | 2006-09-15 | 2007-10-24 | 北京机电院高技术股份有限公司 | Braking device for numeral control machine tool feeding axis |
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| CN108176732A (en) | 2018-06-19 |
| WO2019128788A1 (en) | 2019-07-04 |
| JP2021507815A (en) | 2021-02-25 |
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