CN113843305B - Die monitoring and early warning method, system, equipment and computer readable storage medium - Google Patents
Die monitoring and early warning method, system, equipment and computer readable storage medium Download PDFInfo
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- CN113843305B CN113843305B CN202111025122.2A CN202111025122A CN113843305B CN 113843305 B CN113843305 B CN 113843305B CN 202111025122 A CN202111025122 A CN 202111025122A CN 113843305 B CN113843305 B CN 113843305B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 51
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- 238000010998 test method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 27
- 230000002159 abnormal effect Effects 0.000 description 8
- 238000004080 punching Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
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- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
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Classifications
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a die monitoring and early warning method, a system, equipment and a computer readable storage medium, wherein the die monitoring and early warning method comprises the following steps: when a die to be tested is in a working state, monitoring a plurality of point to be tested in the die to be tested, and determining all stamping tonnage of each point to be tested within a preset time length; detecting whether the target stamping tonnage which is not matched with a preset standard condition exists in the stamping tonnage or not; if the target stamping tonnage exists, outputting early warning information, and determining a target to-be-detected point position corresponding to the target stamping tonnage; and carrying out position adjustment on the die to be tested according to the target point to be tested until the stamping tonnage of each point to be tested on the adjusted die to be tested is matched with a preset standard condition. The invention improves the service life of the die and reduces the production cost.
Description
Technical Field
The present invention relates to the field of automated testing, and in particular, to a method, a system, an apparatus, and a computer readable storage medium for monitoring and early warning of a mold.
Background
At present, the mechanical energy released by a press machine is mainly transmitted to a die, the die moves through the received energy to deform a metal material sheet in a cavity, so that the desired appearance part is realized, and the die processes the energy in the movement process of the metal material sheet, which is called tonnage. Tonnage is an important measurement parameter of whether a die is in operation or not and whether a part is compacted: the stamping tonnage parameter of the die is only applied to single stamping debugging of the die project, and a method for tracking, monitoring, early warning, recording and analyzing of long periodicity is avoided. However, at present, the defects exist, such as long-time production variation, production tonnage deviation, no early warning of a real-time long-period monitoring system, overlarge local stress of the die, stress concentration and shortened service life of the die and the like.
Disclosure of Invention
The invention mainly aims to provide a mould monitoring and early warning method, a mould monitoring and early warning system, mould monitoring and early warning equipment and a computer readable storage medium, and aims to solve the technical problems of short service life and high cost of the existing mould.
In order to achieve the above purpose, the present invention provides a mold monitoring and early warning method, which includes:
when a die to be tested is in a working state, monitoring a plurality of point to be tested in the die to be tested, and determining all stamping tonnage of each point to be tested within a preset time length;
detecting whether the target stamping tonnage which is not matched with a preset standard condition exists in the stamping tonnage or not;
if the target stamping tonnage exists, outputting early warning information, and determining a target to-be-detected point position corresponding to the target stamping tonnage;
and carrying out position adjustment on the die to be tested according to the target point to be tested until the stamping tonnage of each point to be tested on the adjusted die to be tested is matched with a preset standard condition.
Optionally, after the step of determining all stamping tonnage of each point to be tested within a preset time length, the method includes:
sequentially traversing each stamping tonnage, determining a maximum standard value in the preset standard condition, and calculating a first absolute difference value between the maximum standard value and the traversed stamping tonnage;
detecting whether the first absolute difference is smaller than a preset standard difference;
and if the first absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as a target stamping tonnage.
Optionally, after the step of detecting whether the first absolute difference is smaller than a preset standard difference, the method includes:
if the first absolute difference value is smaller than a preset standard difference value, determining a minimum standard value in the preset standard values, and calculating a second absolute difference value between the minimum standard value and the traversed stamping tonnage;
detecting whether the second absolute difference value is smaller than the preset standard difference value;
and if the second absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as the target stamping tonnage.
Optionally, after the step of determining all stamping tonnage of each point to be tested within a preset time length, the method includes:
traversing each point to be tested, and determining all first stamping tonnage corresponding to the traversed point to be tested in each stamping tonnage;
traversing each of the first punch tonnage, determining all second punch tonnage except the traversed first punch tonnage in each of the first punch tonnage;
and if the first stamping tonnage and the second stamping tonnage of the traverse are not matched, determining the first stamping tonnage of the traverse as the target stamping tonnage.
Optionally, after the step of determining all stamping tonnage of each point to be tested within a preset time length, the method includes:
obtaining a third stamping tonnage corresponding to each point to be tested in a preset time node in each stamping tonnage, wherein the preset time length comprises the preset time node;
determining whether fourth stamping tonnage with a difference value larger than a preset difference value exists in each third stamping tonnage;
and if the fourth stamping tonnage exists, taking the fourth stamping tonnage as a target stamping tonnage.
Optionally, before the step of determining whether there is a fourth punch tonnage in which the difference value is greater than a preset difference value in each of the third punch tonnage, the method includes:
traversing each third stamping tonnage, and determining all fifth stamping tonnages except the traversed third stamping tonnages in each third stamping tonnage;
and calculating the difference value between the traversed third stamping tonnage and each fifth stamping tonnage, and taking the absolute value of each difference value as a difference value corresponding to the traversed third stamping tonnage.
In addition, the invention also provides a die monitoring and early warning system, which comprises a die to be detected, a stamping tonnage acquisition device and a signal processing early warning device, wherein the stamping tonnage acquisition device is arranged in the die to be detected, the stamping tonnage acquisition device is electrically connected with the signal processing early warning device,
the stamping tonnage collecting device is used for collecting stamping tonnage of a plurality of points to be detected in the die to be detected, and sending the collected stamping tonnage to the signal processing early warning device, and the signal processing early warning device is used for analyzing and early warning the received stamping tonnage.
Optionally, at least two ram tonnage collection apparatuses are provided, and the ram tonnage collection apparatuses include a pressure sensor.
The invention also provides a die monitoring and early warning device, which comprises: the device comprises a memory, a processor and a die monitoring and early warning program which is stored in the memory and can run on the processor, wherein the die monitoring and early warning program realizes the steps of the die monitoring and early warning method when being executed by the processor.
The invention also provides a computer readable storage medium, which is characterized in that the computer readable storage medium is stored with a mould monitoring and early warning program, and the mould monitoring and early warning program realizes the steps of the mould monitoring and early warning method when being executed by a processor.
According to the invention, when the die to be tested is in a working state, all stamping tonnages of all the points to be tested are obtained, and when the target stamping tonnages which are not matched with the preset standard conditions exist in all the stamping tonnages, early warning information is output, and the position of the die to be tested is adjusted according to the target points to be tested corresponding to the target stamping tonnages until the stamping tonnages of all the points to be tested are matched with the preset standard conditions. Therefore, the phenomenon that the mold is not monitored for tonnage at present, the production variation of the mold is caused for a long time, the service life is shortened, and the cost is increased is avoided, and the mold to be tested is adjusted according to the stamping tonnage detected in real time, so that the phenomenon of uneven stress is avoided, the service life of the mold is prolonged, and the production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the hardware architecture of an alternative processing terminal for implementing various embodiments of the present invention;
FIG. 2 is a schematic flow chart of an embodiment of a mold monitoring and early warning method based on an image recognition technology;
FIG. 3 is a schematic flow chart of the mold monitoring and early warning system of the invention;
FIG. 4 is a schematic diagram of a stamping tonnage detection scene of the die monitoring and early warning of the invention;
fig. 5 is a schematic diagram of another stamping tonnage detection scenario for die monitoring and early warning according to the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1, fig. 1 is a schematic diagram of a terminal structure of a hardware running environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, or can be a mobile terminal device with a display function, such as a smart phone, a tablet personal computer, an electronic book reader, an MP3 (Moving Picture Experts Group Audio Layer III, dynamic image expert compression standard audio layer 3) player, an MP4 (Moving Picture Experts Group Audio Layer IV, dynamic image expert compression standard audio layer 3) player, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
Optionally, the terminal may also include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and so on. Among other sensors, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and the direction when the mobile terminal is stationary, and the mobile terminal can be used for recognizing the gesture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, which are not described herein.
It will be appreciated by those skilled in the art that the terminal structure shown in fig. 1 is not limiting of the terminal and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a mold monitoring and early warning program may be included in a memory 1005 as one type of computer storage medium.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a mold monitoring and early warning program stored in the memory 1005, and perform the following operations:
when a die to be tested is in a working state, monitoring a plurality of point to be tested in the die to be tested, and determining all stamping tonnage of each point to be tested within a preset time length;
detecting whether the target stamping tonnage which is not matched with a preset standard condition exists in the stamping tonnage or not;
if the target stamping tonnage exists, outputting early warning information, and determining a target to-be-detected point position corresponding to the target stamping tonnage;
and carrying out position adjustment on the target point to be measured until the stamping tonnage of the target point to be measured after the position adjustment is matched with the preset standard condition.
Referring to fig. 2, the present invention provides a mold monitoring and early warning method, in an embodiment of the mold monitoring and early warning method of the present invention, the mold monitoring and early warning method includes:
step S10, when a die to be tested is in a working state, monitoring a plurality of point to be tested in the die to be tested, and determining all stamping tonnage of each point to be tested within a preset duration;
because the current mould has long-time production variation, production tonnage deviation and no early warning of a real-time long-period monitoring system, the local stress of the mould is overlarge, and stress concentration is generated, so that the service life of the mould is shortened. And the production stamping tonnage data of the die is large in quantity and difficult to obtain, and the preventive die maintenance has no defects of effective data support and the like. Therefore, in the embodiment, the specific stamping tonnage of each die to be tested can be detected, namely, the bottom layer data of corresponding die production tonnage equipment can be generated and automatically cut through establishing, the standard value range of the die production tonnage is set, the stamping tonnage data of each punch production die is collected in real time, the standard value is compared, the die production tonnage trend is tracked for a long period, and the die quantization adjustment is carried out on the existence of tonnage deviation exceeding standard, so that the local stress concentration of the die caused by overlarge die production tonnage difference is eliminated, the service life of the die is prolonged, and the die cost is reduced.
Therefore, in this embodiment, when the die to be tested for punching test is determined, the die to be tested is used as the die to be tested, and because the die to be tested is not in a working state, the die to be tested is generally defaulted to have a punching tonnage of 0, so that the die to be tested in the working state is mainly tested for punching tonnage, so that system resources are not wasted, the punching tonnage of the die to be tested can be accurately detected, and further, adjustment is performed according to the detected punching tonnage, and the phenomenon that the service life of the die to be tested is short due to uneven stress is avoided. It should be noted that the working state may be a state when the die to be tested and the press machine are already started to operate and the stamping die is placed on the die to be tested.
In this embodiment, in order to more reasonably and effectively detect the stamping tonnage of the die to be tested, a plurality of points to be tested (i.e., the points for performing the stamping tonnage test) are set on the die to be tested in advance, and corresponding point sensors are set on the points to be tested, so that the stamping tonnage of the points to be tested can be detected according to the point sensors. The point position sensor can be a pressure sensor, and the point position sensor can be movable in the die to be tested.
And then monitoring a plurality of to-be-tested points in the to-be-tested die in real time, acquiring stamping tonnage on the to-be-tested points in real time according to the point position sensors arranged on the to-be-tested points, and counting stamping tonnage of all the to-be-tested points within a certain time period so as to perform subsequent data analysis. The preset time length is any time length set by a user in advance. The mechanical energy released by the press machine is mainly transmitted to the die, the die moves through the received energy to deform the metal material sheet in the cavity, so that the desired appearance part is realized, and the die processes the energy in the moving process of the metal material sheet, which is called tonnage. Tonnage is an important measure of whether a part is compacted or not, and the state of the mold operation. The press tonnage is tonnage generated each time the press performs press stamping.
Step S20, detecting whether target stamping tonnage which is not matched with a preset standard condition exists in all stamping tonnage;
after all stamping tonnages of all the points to be tested on the die to be tested are obtained, each stamping tonnages can be analyzed, and whether the target stamping tonnages which are not matched with the preset standard conditions exist in each stamping tonnages can be detected, namely whether the stamping tonnages collected by each point to be tested on the die to be tested are approximately the same or not when stamping is carried out by a press machine each time, and if at least one stamping tonnages which are different from the stamping tonnages collected by other point to be tested is larger, the stamping tonnages are used as the stamping tonnages which are not matched with the preset standard conditions. Or after a plurality of groups of stamping tonnage tests are carried out, a plurality of stamping tonnages of each point to be tested are obtained, then the average value of the stamping tonnages of each point to be tested is calculated, and when the fact that the difference of a certain average value relative to other average values is larger is found, all stamping tonnages corresponding to the average value can be directly used as target stamping tonnages.
Step S30, if the target stamping tonnage exists, outputting early warning information, and determining a target point to be detected corresponding to the target stamping tonnage;
when judging that the target stamping tonnage which is not matched with the preset standard condition exists in each stamping tonnage, determining that the abnormality exists, directly outputting corresponding early warning information to inform a user, directly determining a point to be detected corresponding to the target stamping tonnage, and taking the point to be detected as the target point to be detected. That is, it can be considered that the target point to be measured on the mold to be measured is abnormal. The mode of outputting the early warning information may be to set the lights corresponding to different to-be-measured points first, and directly flash the lights of the to-be-measured points when determining that the stamping tonnage on the to-be-measured points is abnormal, or to play voice and send information to the user terminal, and the mode of specifically outputting the early warning information is not limited herein.
And S40, adjusting the position of the die to be tested according to the target point to be tested until the stamping tonnage of each point to be tested on the adjusted die to be tested is matched with a preset standard condition.
When the fact that the target to-be-measured point positions with abnormal specific stamping tonnage exist on the to-be-measured die is determined, the position of the to-be-measured die can be directly adjusted, so that the stamping tonnage of each to-be-measured point position on the to-be-measured die is uniform when a subsequent stamping machine performs stamping. For example, four points to be measured are set A, B, C, D on the die to be measured, and a point sensor is set in each point to be measured for detecting the die stamping tonnage. And collecting stamping tonnage of the four to-be-tested points by the decoding press machine every time through the PLC upper computer. And extracting and setting up a die production tonnage up-down deviation threshold value, and comparing the stamping tonnage acquired each time with the production tonnage up-down deviation threshold value to determine whether an abnormality exists. And the tonnage of each stamping die can be monitored in real time, recorded and archived according to different dies, abnormal or over-standard values are pre-warned, and the dies automatically analyze and release the running state after production is completed. And adjusting the production tonnage deviation positions of the corresponding dies according to the early warning and the issuing analysis report, so as to ensure the average distribution of the production tonnage of the A B C D point positions, realize the uniform distribution of the production stress of the dies and prolong the service lives of the dies. In this embodiment, when the die to be tested is in a working state, all stamping tonnages of each point to be tested are obtained, and when a target stamping tonnages which is not matched with a preset standard condition exists in each stamping tonnages, early warning information is output, and position adjustment is performed on the die to be tested according to the target point to be tested corresponding to the target stamping tonnages until the stamping tonnages of each point to be tested are matched with the preset standard condition. Therefore, the phenomenon that the mold is not monitored for tonnage at present, the production variation of the mold is caused for a long time, the service life is shortened, and the cost is increased is avoided, and the mold to be tested is adjusted according to the stamping tonnage detected in real time, so that the phenomenon of uneven stress is avoided, the service life of the mold is prolonged, and the production cost is reduced.
Further, based on the above embodiment, another embodiment of the die monitoring and early warning method of the present invention is provided, in this embodiment, step S10 of the above embodiment, after the step of determining all stamping tonnages of each point to be tested within a preset duration, includes:
step a, sequentially traversing each stamping tonnage, determining a maximum standard value in the preset standard condition, and calculating a first absolute difference value between the maximum standard value and the traversed stamping tonnage;
in this embodiment, after the stamping tonnage of each point to be measured is obtained, the same operation is adopted for each stamping tonnage, that is, each stamping tonnage can be traversed first, the maximum standard value in the preset standard conditions, that is, the maximum threshold value in the upper and lower thresholds of the production tonnage, is determined, the difference between the maximum standard value and the traversed stamping tonnage is calculated, and the absolute value of the difference is calculated and is used as the first absolute difference.
Step b, detecting whether the first absolute difference value is smaller than a preset standard difference value;
after the first absolute difference is calculated, whether the first absolute difference is smaller than a standard difference value set in advance or not needs to be detected, and different operations are executed according to different detection results.
And c, if the first absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as a target stamping tonnage.
When the first absolute difference value is larger than or equal to the preset standard difference value through judgment, the fact that the abnormal stamping tonnage corresponding to the first absolute difference value exists can be directly determined, namely the abnormal stamping tonnage is traversed, and the traversed stamping tonnage is taken as the target stamping tonnage.
In this embodiment, when the die to be tested is in a working state, all stamping tonnages of each point to be tested are obtained, and when target stamping tonnages which are not matched with the preset standard conditions exist in each stamping tonnages, early warning information is output, and position adjustment is performed on the die to be tested according to the target point to be tested corresponding to the target stamping tonnages until the stamping tonnages of each point to be tested are matched with the preset standard conditions. Therefore, the phenomenon that the mold is not monitored for tonnage at present, the production variation of the mold is caused for a long time, the service life is shortened, and the cost is increased is avoided, and the mold to be tested is adjusted according to the stamping tonnage detected in real time, so that the phenomenon of uneven stress is avoided, the service life of the mold is prolonged, and the production cost is reduced.
And determining the traversed stamping tonnage as the target stamping tonnage when the first absolute difference between the maximum standard value and the traversed stamping tonnage is greater than or equal to the preset standard value, thereby ensuring the accuracy of the acquired target stamping tonnage.
Specifically, after the step of detecting whether the first absolute difference is smaller than a preset standard difference, the method includes:
step d, if the first absolute difference value is smaller than a preset standard difference value, determining a minimum standard value in the preset standard values, and calculating a second absolute difference value between the minimum standard value and the traversed stamping tonnage;
in this embodiment, when the first absolute difference is found to be smaller than the preset standard difference through judgment, a minimum standard value of the preset standard values, that is, a minimum threshold value of the upper and lower thresholds of the production tonnage is required to be obtained, a difference between the minimum standard value and the traversed stamping tonnage is calculated, and the absolute value of the difference is calculated and is used as the second absolute difference.
Step e, detecting whether the second absolute difference value is smaller than the preset standard difference value;
after the second absolute difference is calculated, whether the second absolute difference is smaller than the standard difference set in advance or not needs to be detected, and different operations are executed according to different detection results.
And f, if the second absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as the target stamping tonnage.
When the second absolute difference value is larger than or equal to the preset standard difference value through judgment, the fact that the abnormal stamping tonnage corresponding to the second absolute difference value exists can be directly determined, namely the abnormal stamping tonnage is traversed, and the traversed stamping tonnage is taken as the target stamping tonnage. If the second absolute difference is smaller than the preset standard difference, the subsequent judgment of the stamping tonnage is continued.
In this embodiment, when the first absolute difference is smaller than the preset standard difference and the second absolute difference between the minimum standard value and the traversed stamping tonnage is greater than or equal to the preset standard difference, the traversed stamping tonnage is determined to be the target stamping tonnage, so that the accuracy of the obtained target stamping tonnage is ensured.
Further, after the step of determining all stamping tonnage of each point to be tested within a preset time length, the method comprises the following steps:
step g, traversing each point to be tested, and determining all first stamping tonnage corresponding to the traversed point to be tested in each stamping tonnage;
in this embodiment, when determining the target punch tonnage, it may also be to traverse each point to be measured, determine all punch tonnages corresponding to the traversed point to be measured in each punch tonnage, and use it as the first punch tonnage, that is, determine all punch tonnages of one point to be measured.
Step h, traversing each first stamping tonnage, and determining all second stamping tonnages except the traversed first stamping tonnages in each first stamping tonnages;
since there are a plurality of first punch tonnages obtained, it is possible to traverse each first punch tonnage, and to determine, as the second punch tonnages, the first punch tonnages of each first punch tonnage other than the first punch tonnage traversed.
And step k, if the first stamping tonnage and the second stamping tonnage are not matched, determining the first stamping tonnage as the target stamping tonnage.
When judging that the first stamping tonnage and each second stamping tonnage are not matched, the first stamping tonnage can be directly used as the target stamping tonnage, and the abnormality of the point to be detected corresponding to the target stamping tonnage is determined.
In the embodiment, when a certain stamping tonnage and other stamping tonnages are not matched, the existence of the target stamping tonnages is determined, so that the accuracy of the acquired target stamping tonnages is ensured.
Further, after the step of determining all stamping tonnage of each point to be tested within a preset time length, the method comprises the following steps:
m, obtaining a third stamping tonnage corresponding to each point to be tested in a preset time node in the stamping tonnage, wherein the preset time length comprises the preset time node;
in this embodiment, the manner of determining the target punch tonnage may also be to obtain the punch tonnage obtained by each point to be measured in a certain time node in each punch tonnage, and use the obtained punch tonnage as the third punch tonnage, that is, obtain the punch tonnage generated by each point to be measured when a certain press punches. The preset time node belongs to any time node within a preset duration.
Step n, determining whether fourth stamping tonnage with the difference value larger than a preset difference value exists in each third stamping tonnage;
and step p, taking the fourth stamping tonnage as a target stamping tonnage if the fourth stamping tonnage exists.
And then comparing each third stamping tonnage respectively to obtain a difference value, and determining that a fourth stamping tonnage exists, namely the target stamping tonnage, when the difference value is larger than a preset difference value (any difference value set by a user in advance). For example, if the stamping tonnage of the point to be tested A is 485 tons; the stamping tonnage of the point position B to be tested is 400; the stamping tonnage of the point C to be tested is 402 tons; the stamping tonnage of the point to be tested D is 402 tons. The stamping tonnage of the point to be tested A and the difference value between other points to be tested can be obviously determined to be obviously larger than the difference value between other points to be tested, so that the stamping tonnage of the point to be tested A can be directly used as the fourth stamping tonnage, namely the target stamping tonnage.
In the embodiment, the third stamping tonnage of all the points to be tested in a certain time node is obtained, and when the difference value of one of the third stamping tonnage is found to be larger than the preset difference value, the third stamping tonnage is used as the target stamping tonnage, so that the accuracy of the obtained target stamping tonnage is ensured.
Specifically, before the step of determining whether there is a fourth press tonnage in which the difference value is greater than a preset difference value in each of the third press tonnage, the method includes:
step x, traversing each third stamping tonnage, and determining all fifth stamping tonnages except the traversed third stamping tonnages in each third stamping tonnages;
in this embodiment, each third punch tonnage can be traversed, and all third punch tonnages except the traversed third punch tonnages in each third punch tonnage are determined and taken as fifth punch tonnages.
And step y, calculating the difference value between the traversed third stamping tonnage and each fifth stamping tonnage, and taking the absolute value of each difference value as a difference value corresponding to the traversed third stamping tonnage.
And calculating the difference value between the traversed third stamping tonnage and each fifth stamping tonnage, and taking the absolute value of each difference value as the difference value corresponding to the traversed third stamping tonnage.
In the embodiment, the accuracy of the obtained difference value is ensured by directly calculating the difference value between the stamping tonnages and taking the absolute value of the difference value as the difference value.
In addition, the invention also provides a die monitoring and early warning system, which comprises a die to be detected, a stamping tonnage acquisition device and a signal processing early warning device, wherein the stamping tonnage acquisition device is arranged in the die to be detected, the stamping tonnage acquisition device is electrically connected with the signal processing early warning device,
the stamping tonnage collecting device is used for collecting stamping tonnage of a plurality of points to be detected in the die to be detected, and sending the collected stamping tonnage to the signal processing early warning device, and the signal processing early warning device is used for analyzing and early warning the received stamping tonnage.
Wherein, punching press tonnage collection system is provided with two at least, and punching press tonnage collection system includes pressure sensor.
For example, as shown in fig. 3, the production tonnage of the equipment mold is generated, the equipment mold is analyzed by a PLC data acquisition and data monitoring analysis system, and then the down-line quantitative adjustment is performed according to the analysis result. The detection of the ABCD point location tonnage of the equipment bottom layer design production die can be shown as shown in fig. 4, and the stamping tonnage of the point location A to be detected is 400 tons; the stamping tonnage of the point position B to be tested is 402 tons; the stamping tonnage of the point position C to be tested is 485 tons; the stamping tonnage of the point to be tested D is 402 tons. After the die is subjected to data quantization adjustment and the average distribution of the stress tonnage of the four corners is maintained, as shown in fig. 5, the stamping tonnage of the point to be tested A is 400 tons; the stamping tonnage of the point position B to be tested is 402 tons; the stamping tonnage of the point C to be tested is 405 tons; the stamping tonnage of the point to be tested D is 405 tons.
In addition, the embodiment of the invention also provides a die monitoring and early warning device, which comprises: the device comprises a memory, a processor and a die monitoring and early warning program which is stored in the memory and can run on the processor, wherein the die monitoring and early warning program realizes the steps of the die monitoring and early warning method in each embodiment when being executed by the processor.
In addition, the embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium is stored with a die monitoring and early warning program, and the die monitoring and early warning program realizes the steps of each embodiment of the die monitoring and early warning method when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (9)
1. The die monitoring and early warning method is characterized by comprising the following steps of:
when a die to be tested is in a working state, monitoring a plurality of point to be tested in the die to be tested, and determining all stamping tonnage of each point to be tested within a preset time length;
detecting whether the target stamping tonnage which is not matched with a preset standard condition exists in the stamping tonnage or not;
if the target stamping tonnage exists, outputting early warning information, and determining a target to-be-detected point position corresponding to the target stamping tonnage;
the position of the die to be measured is adjusted according to the target point to be measured until the stamping tonnage of each point to be measured on the adjusted die to be measured is matched with a preset standard condition;
after the step of determining all stamping tonnages of each point to be tested within a preset time length, the method comprises the following steps:
traversing each point to be tested, and determining all first stamping tonnage corresponding to the traversed point to be tested in each stamping tonnage;
traversing each of the first punch tonnage, determining all second punch tonnage except the traversed first punch tonnage in each of the first punch tonnage;
and if the first stamping tonnage and the second stamping tonnage of the traverse are not matched, determining the first stamping tonnage of the traverse as the target stamping tonnage.
2. The method for monitoring and early warning a die according to claim 1, wherein after the step of determining all stamping tonnage of each point to be tested within a preset time period, the method comprises the steps of:
sequentially traversing each stamping tonnage, determining a maximum standard value in the preset standard condition, and calculating a first absolute difference value between the maximum standard value and the traversed stamping tonnage;
detecting whether the first absolute difference is smaller than a preset standard difference;
and if the first absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as a target stamping tonnage.
3. The method of claim 2, wherein after the step of detecting whether the first absolute difference is less than a predetermined standard difference, the method comprises:
if the first absolute difference value is smaller than a preset standard difference value, determining a minimum standard value in the preset standard condition, and calculating a second absolute difference value between the minimum standard value and the traversed stamping tonnage;
detecting whether the second absolute difference value is smaller than the preset standard difference value;
and if the second absolute difference value is larger than or equal to a preset standard difference value, determining the traversed stamping tonnage as the target stamping tonnage.
4. The die monitoring and early warning method according to claim 1, wherein after the step of determining all stamping tonnage of each point to be tested within a preset time period, the method further comprises:
obtaining a third stamping tonnage corresponding to each point to be tested in a preset time node in each stamping tonnage, wherein the preset time length comprises the preset time node;
determining whether fourth stamping tonnage with a difference value larger than a preset difference value exists in each third stamping tonnage;
and if the fourth stamping tonnage exists, taking the fourth stamping tonnage as a target stamping tonnage.
5. The die monitoring and warning method of claim 4, wherein before the step of determining whether there is a fourth press tonnage in each of the third press tonnage having a difference value greater than a preset difference value, comprising:
traversing each third stamping tonnage, and determining all fifth stamping tonnages except the traversed third stamping tonnages in each third stamping tonnage;
and calculating the difference value between the traversed third stamping tonnage and each fifth stamping tonnage, and taking the absolute value of each difference value as a difference value corresponding to the traversed third stamping tonnage.
6. A die monitoring and early warning system is characterized in that the die monitoring and early warning system executes the die monitoring and early warning method according to claim 1, and comprises a die to be detected, a stamping tonnage acquisition device and a signal processing early warning device, wherein the stamping tonnage acquisition device is arranged in the die to be detected, the stamping tonnage acquisition device is electrically connected with the signal processing early warning device,
the stamping tonnage acquisition device is used for acquiring stamping tonnage of a plurality of points to be detected in the die to be detected and sending the acquired stamping tonnage to the signal processing early warning device, and the signal processing early warning device is used for analyzing and early warning the received stamping tonnage;
the method for analyzing and early warning the received stamping tonnage comprises the following steps of: traversing each point to be tested, and determining all first stamping tonnage corresponding to the traversed point to be tested in each stamping tonnage; traversing each of the first punch tonnage, determining all second punch tonnage except the traversed first punch tonnage in each of the first punch tonnage; and if the first stamping tonnage and the second stamping tonnage are not matched, determining the first stamping tonnage as the target stamping tonnage, and outputting early warning information.
7. The die monitoring and warning system of claim 6, wherein at least two of the ram tonnage collection apparatuses are provided, and the ram tonnage collection apparatuses include pressure sensors.
8. The utility model provides a mould control early warning equipment which characterized in that, mould control early warning equipment includes: a memory, a processor and a die monitoring and warning program stored on the memory and operable on the processor, which when executed by the processor, implements the steps of the die monitoring and warning test method of any one of claims 1 to 5.
9. A computer-readable storage medium, wherein a mold monitoring and early warning program is stored on the computer-readable storage medium, and the mold monitoring and early warning program, when executed by a processor, implements the steps of the mold monitoring and early warning method according to any one of claims 1 to 5.
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