CN107632763B - Digital management system and method for hydraulic wrench - Google Patents
Digital management system and method for hydraulic wrench Download PDFInfo
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- CN107632763B CN107632763B CN201710819765.1A CN201710819765A CN107632763B CN 107632763 B CN107632763 B CN 107632763B CN 201710819765 A CN201710819765 A CN 201710819765A CN 107632763 B CN107632763 B CN 107632763B
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Abstract
The invention relates to a digital management system and method, belongs to the field of numerical control, and particularly relates to a digital management system and method for a hydraulic wrench. The parameter selection module selects a screw cap, strength and wrench type, an embedded program automatically generates a locking torque and a pressure value and a loosening torque and a pressure value by a built-in conversion table, and the values are used as important conditions of fuzzy control and are displayed on a page for a user to refer to; the wrench starting module starts the wrench to work according to preset torque after the working condition is selected, collects and monitors the working state of the wrench in real time, and automatically stops the wrench when the fuzzy control condition is reached; therefore, the invention has the following advantages: the device can be used well by setting the usual option settings. The usability of the device and the safety of the device are greatly increased.
Description
Technical Field
The invention relates to a digital management system and method, belongs to the field of numerical control, and particularly relates to a digital management system and method for a hydraulic wrench.
Background
Digital control is gradually becoming a trend, and the arrangement of more functional components in a smaller space is realized to meet special requirements in application, which is a prominent problem in the design of the current hydraulic products. The combination of proportional technology and electronic technology can solve such problems, and is a development direction of the future hydraulic application field. Due to the permanent storage function, the repeatability of system setting is ensured by digital management, and the repeatability of all functional parameter settings is ensured by digital component testing.
For the traditional hydraulic wrench, the equipment process of outputting the torque is complex, and the pressure value output by the hydraulic wrench needs table lookup calculation. And there is no real-time feedback on the nut loosening and tightening procedure, thereby greatly increasing the possibility of equipment damage. And the man-machine interaction process of the traditional hydraulic wrench equipment is complex and unfriendly.
In order to solve the problems, touchable liquid crystal display panels and related control panels are added. On the panel, the device can be controlled more optimally, and the device can be well used by setting common option settings. The usability of the device and the safety of the device are greatly increased.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a digital management system and method for a hydraulic wrench. The technical problem of the invention is mainly solved by the following technical scheme:
a hydraulic wrench digital management system, comprising:
a parameter selection module for selecting nut, strength and wrench type, the embedded program automatically generates locking torque and pressure value and loosening torque and pressure value by built-in conversion table, these values will be used as important conditions of fuzzy control, and displayed on the page for user's reference;
the wrench starting module starts the wrench to work according to preset torque after the working condition is selected, collects and monitors the working state of the wrench in real time, and automatically stops the wrench when the fuzzy control condition is reached;
wherein the fuzzy control conditions include at least one or more of the following conditions:
the first condition is as follows: the stroke time exceeds a preset value, and the stroke time is the time from the action moment of the electromagnetic valve to the time when the read back pressure value reaches the locking pressure value;
and a second condition: the deviation of the average stroke time is larger than the set value, the controller records the stroke time of each time and calculates the average stroke time since the bolt is started, and then:
average deviation difference | Current Stroke time-average Stroke time-
And (3) carrying out a third condition: the deviation ratio of the maximum value of the stroke time is larger than a set value, the controller records the stroke time every time and calculates the maximum stroke time of the bolt since the bolt is started, and then:
the pressure display module is used for acquiring the data pressure gauge in real time, and the page provides a display function;
a forced stopping module, which is used for providing a stopping button and is used for forcibly stopping the operation which is automatically running at present;
the data export module is used for storing the operation data into the SD card or exporting the operation data;
the viewing record module is used for viewing the latest 1000 records, and prompting a user to insert a USB flash disk and automatically storing the data into the USB flash disk when the number of the data to be viewed exceeds 1000;
a record clearing module, which clears all records in the SD card in the administrator mode and clears the content in the 'viewing record' table in the user mode;
the service time counting module is used for not allowing the controller to start any more when the service time of the hydraulic oil reaches the upper service limit of 200 hours, replacing the hydraulic oil at the moment, and resetting the service time of the hydraulic oil of the parameter setting page to zero so as to enable the hydraulic oil to be continuously used; when the service time of the equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required at the moment, and the 'equipment working time length' of the 'parameter setting' page is cleared to zero so that the equipment can be continuously used.
The data uploading and remote management module is used for completing data uploading through the embedded GPRS by the controller and comprises the following information: equipment number, user work number, wrench type, nut type, strength, locking torque and pressure, loosening torque and pressure, start time and end time; forbidding starting; allowing the start-up; and recording the current maintenance time. The remote service management platform can automatically store information and provide a function of performing statistical analysis according to equipment;
a parameter editing module, all configuration parameters being editable, all configuration parameters within the control program including: the device number, the stroke time, the return time, the hydraulic oil using time, the device using time, the maintenance time, the torque pressure look-up table conversion system, and the average value deviation difference value and the maximum value deviation ratio value for judging the stopping condition.
And the default setting recovery module is used for updating all the parameters to default values when the parameter setting is wrong.
A digital management method for a hydraulic wrench comprises the following steps:
a parameter selection step, selecting a screw cap, strength and wrench type, automatically generating a locking torque and a pressure value and a loosening torque and a pressure value by an embedded program through a built-in conversion table, wherein the values are used as important conditions of fuzzy control and are displayed on a page for a user to refer to;
a wrench starting step, after the working condition is selected, starting the wrench to work according to the preset torque, acquiring and monitoring the working state of the wrench in real time, and automatically stopping the wrench when the fuzzy control condition is reached;
wherein the fuzzy control conditions include at least one or more of the following conditions:
the first condition is as follows: the stroke time exceeds a preset value, and the stroke time is the time from the action moment of the electromagnetic valve to the time when the read back pressure value reaches the locking pressure value;
and a second condition: the deviation of the average stroke time is larger than the set value, the controller records the stroke time of each time and calculates the average stroke time since the bolt is started, and then:
average deviation difference | Current Stroke time-average Stroke time-
And (3) carrying out a third condition: the deviation ratio of the maximum value of the stroke time is larger than a set value, the controller records the stroke time every time and calculates the maximum stroke time of the bolt since the bolt is started, and then:
a pressure display step, namely acquiring a data pressure gauge in real time, wherein a page provides a display function;
a forced stopping step for providing a stop button for forcibly stopping the operation currently being automatically run;
a data export step, which is used for storing the operation data into the SD card or exporting the operation data;
a record viewing step, which is used for viewing the latest 1000 records, and prompting a user to insert a USB flash disk and automatically storing the data into the USB flash disk when the data to be viewed exceeds 1000;
a record clearing step, clearing all records in the SD card in an administrator mode, and clearing the content in a 'view use record' table in a user mode;
a service time counting step, when the service time of the hydraulic oil reaches the upper limit of service of 200 hours, the controller is not allowed to start any more, the hydraulic oil is replaced at the moment, and the service time of the hydraulic oil of the parameter setting page is reset to zero so as to be continuously used; when the service time of the equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required at the moment, and the 'equipment working time length' of the 'parameter setting' page is cleared to zero so that the equipment can be continuously used.
A data uploading and remote management step, the controller can complete data uploading through embedded GPRS, and the data uploading and remote management step comprises the following information: equipment number, user work number, wrench type, nut type, strength, locking torque and pressure, loosening torque and pressure, start time and end time; forbidding starting; allowing the start-up; and recording the current maintenance time. The remote service management platform can automatically store information and provide a function of performing statistical analysis according to equipment;
a parameter editing step, all configuration parameters can be edited, and all configuration parameters in the control program comprise: the device number, the stroke time, the return time, the hydraulic oil using time, the device using time, the maintenance time, the torque pressure look-up table conversion method, and the average value deviation difference value and the maximum value deviation ratio value for judging the stopping condition.
And a default setting recovery step, which is used for updating all the parameters to default values when the parameter setting is wrong.
Therefore, the invention has the following advantages: the device can be used well by setting the usual option settings. The usability of the device and the safety of the device are greatly increased.
Drawings
FIG. 1 is a flow diagram internal to the controller of the present invention;
FIG. 2 is a schematic of the stroke time of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the controller adopts an embedded ARM chip technology, and is embedded with a real-time operating system, so that the aims of collecting a digital pressure gauge and automatically controlling the hydraulic wrench are fulfilled. The digital pressure gauge adopts a Beizaki PE system digital pressure gauge, and reads the current pressure value in real time through an MODBUS RTU/RS485 communication protocol. The automatic control of the hydraulic wrench is based on a pressure rising curve, a fuzzy control method is adopted to automatically judge a control quitting condition, when the condition is met, an embedded program stops automatic operation, related record storage and uploading actions of a server are completed, and the server provides equipment management service with a product number as a unit and supports multiple function screening.
The flow inside the controller is shown in fig. 1. The method comprises the following steps:
1. automatic fuzzy control method
After the system is started and operated, the embedded program automatically judges exit conditions according to preset information, and three judgment conditions can be detected in the program:
A) the stroke time exceeds a preset value, the stroke time is as shown in fig. 2, and the time from the action moment of the electromagnetic valve to the time when the read back pressure value reaches the locking pressure value;
B) the deviation of the stroke time average, which is one of the fuzzy control decision exit conditions, is related to the algorithm in the controller. The controller records the stroke time (from the action of the solenoid valve to the time that the pressure gauge rises to the locking pressure value) of each time, calculates the average stroke time since the bolt is started,
then
Average deviation difference | Current Stroke time-average Stroke time-
And if the average deviation difference value is larger than the set value, judging that the exit condition is reached.
The default value is 200, and the modifiable range is 50-1000.
C) Maximum deviation ratio of stroke time
This term is one of the fuzzy control decision exit conditions and is related to the algorithm within the controller. The controller records the stroke time (from the action of the electromagnetic valve to the rise of the pressure gauge to the locking pressure value) of each time, and calculates the maximum stroke time since the bolt is started, then
Deviation ratio current stroke time/maximum stroke time 100%
If the deviation value is larger than the set value, judging that the quitting condition is reached.
The default value is 1.2, and the modifiable range is 0-2.0.
2. By selecting a nut, strength and wrench type, the embedded program automatically generates a locking torque and a pressure value and a loosening torque and a pressure value from a built-in conversion table, and the values are used as important conditions of fuzzy control and are displayed on a page for a user to refer to;
3. data recording and deriving function, recording information items: equipment number, user job number, workpiece number, wrench type, nut type, strength, tightening torque and pressure, loosening torque and pressure, start time, end time. The operation data can be stored in the SD card and can be inserted into the U disk, the 'export data' is clicked, and the data can be automatically stored in the U disk.
4. Counting the service time, when the service time of the hydraulic oil reaches the upper limit of 200 hours, the controller is not allowed to start, the hydraulic oil is required to be replaced, and the service time of the hydraulic oil in the parameter setting page is reset to zero so as to be continuously used; when the service time of the equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required at the moment, and the 'equipment working time length' of the 'parameter setting' page is cleared to zero so that the equipment can be continuously used.
5. Data upload and remote management, the controller can accomplish data upload through embedded GPRS, contains following information: equipment number, user work number, wrench type, nut type, strength, locking torque and pressure, loosening torque and pressure, start time and end time; forbidding starting; allowing the start-up; and recording the current maintenance time. The remote service management platform can automatically store information and provide a function of statistical analysis by device.
6. All configuration parameters are editable, and all configuration parameters inside the control program include: the device number, the stroke time, the return time, the hydraulic oil using time, the device using time, the maintenance time, the torque pressure look-up table conversion system, and the average value deviation difference value and the maximum value deviation ratio value for judging the stopping condition.
7. The server software platform records the equipment number, the user work number, the wrench type, the nut type, the strength, the locking torque and pressure, the loosening torque and pressure, the starting time and the ending time.
8. The server software platform supports setting the enabled use and disabled functionality of the device.
9. The server software platform provides statistical analysis functions of the usage records.
The controller adopts an embedded ARM chip technology, and is embedded with a real-time operating system, so that the aims of collecting a digital pressure gauge and automatically controlling the hydraulic wrench are fulfilled. The digital pressure gauge adopts a Beizaki PE system digital pressure gauge, and reads the current pressure value in real time through an MODBUS RTU/RS485 communication protocol. The automatic control of the hydraulic wrench is based on a pressure rising curve, a fuzzy control method is adopted to automatically judge and control exit conditions, when the conditions are met, the embedded program stops automatic operation, and related actions of recording, storing and uploading to a server are completed.
The controller has the following specific functions:
1. by selecting a nut, strength and wrench type, the embedded program automatically generates a locking torque and a pressure value and a loosening torque and a pressure value from a built-in conversion table, and the values are used as important conditions of fuzzy control and are displayed on a page for a user to refer to;
2. the data recording function of the computer, the computer supports at most 1000 historical data display functions, the display information is: user job number, workpiece number, wrench type, nut type, strength, tightening torque and pressure, loosening torque and pressure, start time, end time.
3. The pressure display function, the data manometer is collected in real time, and the page provides the display function.
4. Starting, after the working condition is selected, realizing automatic control through a page starting button, and automatically stopping when the fuzzy control condition is reached.
5. Force-stop, the page provides a stop button that can be used to force-stop the operation that is currently running automatically.
6. The values of the stroke time and the return time in the parameter configuration are adopted by default, a user can also carry out fine adjustment and modification according to the type of the current operating equipment, but the values cannot influence the factory adjustment configuration values in the controller, and the values of the parameter setting are recovered after the controller is restarted.
7. And in the administrator mode, entering the administrator mode, outputting debugging information within a specified range by the program, adjusting related parameters of the parameter setting page, and permanently storing the debugging information if clicking is determined.
8. And exporting data, wherein the operation data can be stored in the SD card, the function of checking the use records can check the latest 1000 records, if more records need to be checked, the USB flash disk can be inserted, and the data can be automatically stored in the USB flash disk by clicking the export data.
9. The record is cleared, in supervisor mode this function will clear all records in the SD card, and in user mode this function will cause the contents of the "view usage records" table to be cleared.
10. And (4) time setting, if the time of the controller deviates from the current actual time, time setting operation can be carried out through a time display area in the page.
11. The maintenance time and the maintenance are forced, when the service time of the hydraulic oil reaches the upper limit of use for 200 hours, the controller is not allowed to start, the hydraulic oil is required to be replaced, and the service time of the hydraulic oil in the parameter setting page is reset to zero so as to be continuously used; when the service time of the equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required to be carried out at this time, the 'equipment working time length' of the 'parameter setting' page is cleared to zero for continuous use, in addition, if the maintenance time of this time needs to be recorded in the remote server, the 'last maintenance time' of the 'parameter setting' page is required to be changed into the current time, and the controller finishes data uploading through the embedded GPRS.
12. And setting other parameters, wherein the other parameters are set by professional personnel, and the automatic control is inaccurate due to random change.
13. And data uploading is finished by the controller through the embedded GPRS, so that the internal Internet of things card is guaranteed not to be owed.
14. And (4) setting by default, if the parameter setting is wrong, clicking to restore factory settings, and updating all parameters to default values at the moment, wherein the function is operated by a professional.
After the structure is adopted, the operation method of the embodiment includes:
1. is used conventionally
The operation page completes the normal operation as follows.
1) Click the select button under the action page, select the wrench model, and return to
2) Clicking a selection button under the operation page, selecting a bolt model, and returning
3) Click the select button under the action page, select the intensity type, and return to
4) The job number of the user is input under the operation page, the maximum 10 characters only support the input of characters and numbers
5) Inputting workpieces under an operation page, wherein the maximum is 10 characters, and only character and number input is supported
6) Inputting the number of workpieces under an operation page as digital input
7) Entering a current number under an operation page
8) Clicking the starting under the operation page, and modifying the stroke time and the return time before starting, wherein the parameter configuration is not saved at the time of modification under the operation page, and if the parameter configuration needs to be permanently modified, the parameter configuration is modified on the parameter setting page. If the operation is stopped urgently in midway, the stop button of the operation page can be clicked
9) The operation is automatically finished, and the exit condition is automatically judged by adopting a fuzzy control method. After the operation is finished, the controller automatically writes the operation record into the SD card, and the SD card can be checked and analyzed through checking the use record
2. Clock modification
And pressing the clock display area for a long time on the operation page to wait for the adjustment page to appear.
3. Warning
When the alarm tag appears at the upper right corner of the operation page, the alarm tag means that the equipment needs to be replaced by hydraulic oil (the service time of the hydraulic oil reaches 200 hours x 90%), or needs to be maintained (the working time of the equipment reaches 2000 hours x 90%), if the maintenance is not carried out in time, when the parameter reaches 100%, the start button of the operation page prohibits the operation.
4. Viewing usage records
Displaying this button will display the most recent usage record information.
5. Debug information
When entering the supervisor mode, any operation on the regular operations page will output debug information (Chinese), where it will also be output when the auto-stop condition is captured.
6. Parameter settings page-export data
Exporting the data of the internal SD card to the U disk, wherein the left lower part of the page is a progress bar for executing the export, and when the export is finished, the upper right corner outputs the information that the operation is finished or the error information
7. Parameter settings Page-clear record
When the user mode clicks the clear record, only the content recorded in the view usage record is cleared, and the SD card is not affected. If the current mode is in the administrator mode, when the record is clicked to clear, not only the content recorded in the 'view use record' is cleared, but also whether the SD card content is cleared or not is popped up, the clear can be determined by clicking, and the SD card can also be clicked and cancelled so as not to be cleared.
8. Parameter settings page-enter supervisor mode
The administrator mode can be entered when a password needs to be input, and the password needs to be obtained through calculation:
if the instrument shows that the date is 20170731
Turn on calculator programmer mode, input 20170731 Xor 12345678,
the result was 26191525
9. Parameter settings page-Exit Administrator mode
The user can exit the administrator mode and enter the user mode by clicking
10. Parameter settings page-equipment number
When the equipment is delivered from warehouse, it should set up a unique equipment number, and the effective character is 10 digits, which can be characters and numbers, such as sn12345678
11. Parameter settings page-stroke time
The unit is millisecond, the pressure gauge starts timing after the electromagnetic valve acts, the longest time is up to the pressure gauge value to rise to the locking pressure value, if the actual time exceeds the time, the exit condition is judged to be detected (the pressure rises overtime), the default is 3000 millisecond, and the settable range is 500-10000 millisecond.
12. Parameter settings page-backhaul time
The unit is millisecond, and after closing the solenoid valve, the controller carries out delay time, and until delay time finishes, the controller can not begin next stroke automatically, defaults to 3000 milliseconds, and the settable range is 500-10000 milliseconds.
13. Parameter setting page-service time of hydraulic oil
The unit is hour, when the control is started once, the service time of the hydraulic oil is accumulated until the accumulated time exceeds 200 x 90%, an alarm icon appears at the upper right corner of the conventional operation page, and if the user does not process the operation, the start button on the conventional page is forbidden when the accumulated time exceeds 200 hours.
After the hydraulic oil is replaced, the system can enter an administrator mode, 0 is input in a text box of the service time of the hydraulic oil, the determination is clicked to realize the zero clearing of the accumulated value, and the startable state is recovered
14. Parameter settings Page-Equipment hours of operation
The unit is hour, when the control is started once, the working time of the equipment is accumulated until the accumulated time exceeds 2000 to 90 percent, an alarm icon appears at the upper right corner of the conventional operation page, and if the user does not process the alarm icon, the start button on the conventional page is forbidden when the accumulated time exceeds 2000 hours.
After maintenance, the system can enter an administrator mode, 0 is input in a text box of the working duration of the equipment, and the system can be clicked to confirm so as to clear the accumulated value and restore the startable state.
15. Parameter settings page-last maintenance time
The latest maintenance time is recorded, and the modification of the value sends a maintenance report to a remote server in a GPRS communication mode.
16. Parameter settings Page- -Lock Torque value coefficient
After the bolt model and the strength information are selected, the embedded program inquires a built-in table to generate a locking torque value, and according to the actual situation, the actual locking torque value is obtained by using the locking torque value coefficient and the locking torque value coefficient obtained by looking up the table, the default locking torque value coefficient is 0.8, and the modifiable range is 0-2.0.
17. Parameter settings page-demolition torque value coefficient
After the bolt model and the strength information are selected, the embedded program inquires the built-in table and the locking torque value coefficient to obtain an actual locking torque value, the loosening torque value at the moment is the actual locking torque value multiplied by the loosening torque value coefficient, the loosening torque value coefficient is defaulted to 2.0, and the modifiable range is 0-2.0.
18. Parameter settings Page- -locking pressure value coefficient
After selecting bolt model, intensity, spanner model information, embedded program inquiry built-in table generates the locking pressure value, and the locking pressure value coefficient is looked up to the locking pressure value that this moment is actual locking pressure value ═ locking pressure value table value, and the repairable range is 0 ~ 2.0, defaults to 0.1.
19. Parameter settings page-demolition pressure value coefficient
After selecting bolt model, intensity, spanner model information, embedded program inquiry built-in table generates the pressure value of tearing loose, and the pressure value coefficient is torn loose to the pressure value of tearing loose that this moment is actual, and repairable range is 0 ~ 2.0, defaults to 0.1.
20. Parameter settings Page- -mean deviation
This term is one of the fuzzy control decision exit conditions and is related to the algorithm within the controller. The controller records the stroke time (from the action of the solenoid valve to the time that the pressure gauge rises to the locking pressure value) of each time, calculates the average stroke time since the bolt is started,
then
Average deviation difference | Current Stroke time-average Stroke time-
And if the average deviation difference value is larger than the set value, judging that the exit condition is reached.
The default value is 200, and the modifiable range is 50-1000.
21. Parameter settings page-maximum deviation ratio
This term is one of the fuzzy control decision exit conditions and is related to the algorithm within the controller. The controller records the stroke time (from the action of the electromagnetic valve to the rise of the pressure gauge to the locking pressure value) of each time, and calculates the maximum stroke time since the bolt is started, then
Deviation ratio current stroke time/maximum stroke time 100%
If the deviation value is larger than the set value, judging that the quitting condition is reached.
The default value is 1.2, and the modifiable range is 0-2.0.
22. Parameter settings page-determination
After the parameter configuration is modified, the relevant configuration information can be saved by clicking the confirmation.
23. Parameter settings page-Cancel
And when the parameters which are not determined to be modified are correct, the parameters can be clicked to cancel the operation and abandon the operation, the parameters are not stored, and the parameter configuration page displays the configuration information stored in the previous controller.
24. Parameter settings page-restore factory settings
If the parameter is found to have serious errors and cannot be set, the factory setting can be recovered by clicking, and the original default value is returned.
The maintenance and repair of the product manufactured by the present embodiment includes:
1. whether the touch screen is sensitive or not is checked, and the sticking film and the serial port screen can be replaced.
2. If the GPRS is connected, when the mobile terminal is started, the GPRS is in long connection, the current connection state can be checked through the server or the LED state lamp of the control bottom plate, and if the GPRS is not connected, whether the connection instruction setting of the GPRS is correct, whether the antenna is damaged or not and whether the GPRS card is in defaulting or not can be checked.
3. If the SD card fails to write, the SD card can be taken out, and a card reader is used for checking whether the SD card is normal or whether the data is full.
4. And checking whether the parameter configuration is correct according to the product description.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (2)
1. A hydraulic wrench digital management system, comprising:
a parameter selection module for selecting nut, strength and wrench type, the embedded program automatically generates locking torque and pressure value and loosening torque and pressure value by built-in conversion table, these values will be used as important conditions of fuzzy control, and displayed on the page for user's reference;
the wrench starting module starts the wrench to work according to preset torque after the working condition is selected, collects and monitors the working state of the wrench in real time, and automatically stops the wrench when the fuzzy control condition is reached;
wherein the fuzzy control conditions include at least one or more of the following conditions:
the first condition is as follows: the stroke time exceeds a preset value, and the stroke time is the time from the action moment of the electromagnetic valve to the time when the read back pressure value reaches the locking pressure value;
and a second condition: the deviation of the average value of the stroke time is larger than a set value, the controller records the average stroke time since the self-starting of the bolt is calculated by each stroke time, and then:
and (3) carrying out a third condition: the deviation ratio of the maximum value of the stroke time is larger than a set value, the controller records the stroke time every time and calculates the maximum stroke time of the bolt since the bolt is started, and then:
the pressure display module is used for acquiring the data pressure gauge in real time, and the page provides a display function;
a forced stopping module, which is used for providing a stopping button and is used for forcibly stopping the operation which is automatically running at present;
the data export module is used for storing the operation data into the SD card;
the checking record module is used for checking the latest 1000 records, and prompting a user that the data is automatically stored in the USB flash disk after the USB flash disk is inserted when the number of the data to be checked exceeds 1000;
a record clearing module, which clears all records in the SD card in the administrator mode and clears the content in the 'viewing record' table in the user mode;
the service time counting module is used for not allowing the controller to start any more when the service time of the hydraulic oil reaches the upper service limit of 200 hours, replacing the hydraulic oil at the moment, and resetting the service time of the hydraulic oil of the parameter setting page to zero so as to enable the hydraulic oil to be continuously used; when the service time of the hydraulic wrench equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required to be carried out at the moment, and the equipment working time length of the parameter setting page is cleared to zero so that the hydraulic wrench equipment can be continuously used;
the controller can finish data uploading through embedded GPRS, and the data comprises the following information: equipment number, user work number, wrench type, nut type, strength, locking torque and pressure, loosening torque and pressure, starting time, ending time and maintenance time record of this time; the remote service management platform can automatically store information and provide a function of performing statistical analysis according to equipment;
a parameter editing module, all configuration parameters being editable, all configuration parameters within the control program including: the device number, the stroke time, the return time, the hydraulic oil using time, the device using time, the maintenance time, the torque pressure look-up table conversion system, the stroke time average deviation and the maximum deviation ratio for judging the stopping condition;
and the default setting recovery module is used for updating all the parameters to default values when the parameter setting is wrong.
2. A digital management method for a hydraulic wrench is characterized by comprising the following steps:
a parameter selection step, selecting a screw cap, strength and wrench type, automatically generating a locking torque and a pressure value and a loosening torque and a pressure value by an embedded program through a built-in conversion table, wherein the values are used as important conditions of fuzzy control and are displayed on a page for a user to refer to;
a wrench starting step, after the working condition is selected, starting the wrench to work according to the preset torque, acquiring and monitoring the working state of the wrench in real time, and automatically stopping the wrench when the fuzzy control condition is reached;
wherein the fuzzy control conditions include at least one or more of the following conditions:
the first condition is as follows: the stroke time exceeds a preset value, and the stroke time is the time from the action moment of the electromagnetic valve to the time when the read back pressure value reaches the locking pressure value;
and a second condition: the deviation of the average value of the stroke time is larger than a set value, the controller records the average stroke time since the self-starting of the bolt is calculated by each stroke time, and then:
and (3) carrying out a third condition: the deviation ratio of the maximum value of the stroke time is larger than a set value, the controller records the stroke time every time and calculates the maximum stroke time of the bolt since the bolt is started, and then:
a pressure display step, namely acquiring a data pressure gauge in real time, wherein a page provides a display function;
a forced stopping step for providing a stop button for forcibly stopping the operation currently being automatically run;
a data export step for storing the operation data into the SD card;
a record viewing step, which is used for viewing the latest 1000 records, and prompting a user that the data is automatically stored in the USB flash disk after the USB flash disk is inserted when the number of the data to be viewed exceeds 1000;
a record clearing step, clearing all records in the SD card in an administrator mode, and clearing the content in a 'view use record' table in a user mode;
a service time counting step, when the service time of the hydraulic oil reaches the upper limit of service of 200 hours, the controller is not allowed to start any more, the hydraulic oil is replaced at the moment, and the service time of the hydraulic oil of the parameter setting page is reset to zero so as to be continuously used; when the service time of the hydraulic wrench equipment reaches the upper limit of 2000 hours, the controller is not allowed to be started any more, maintenance is required to be carried out at the moment, and the equipment working time length of the parameter setting page is cleared to zero so that the hydraulic wrench equipment can be continuously used;
the method comprises a data uploading and remote management step, wherein the controller can finish data uploading through embedded GPRS, and the data comprises the following information: equipment number, user work number, wrench type, nut type, strength, locking torque and pressure, loosening torque and pressure, starting time, ending time and maintenance time record of this time; the remote service management platform can automatically store information and provide a function of performing statistical analysis according to equipment;
a parameter editing step, all configuration parameters can be edited, and all configuration parameters in the control program comprise: the device number, the stroke time, the return time, the hydraulic oil using time, the device using time, the maintenance time, the torque pressure look-up table conversion method, the stroke time average deviation and the maximum deviation ratio for judging the stopping condition;
and a default setting recovery step, which is used for updating all the parameters to default values when the parameter setting is wrong.
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| CN109269707A (en) * | 2018-11-19 | 2019-01-25 | 联桥网云信息科技（长沙）有限公司 | It can recognize that informationization cloud manages blower nut tightening technique detection method |
| CN112792772B (en) * | 2020-12-30 | 2022-09-27 | 长沙锐博特科技有限公司 | Intelligent torque system |
| CN112388552B (en) * | 2021-01-21 | 2021-05-04 | 杭州雷恩智能制造有限公司 | Automatic hydraulic ratchet wrench stopping judging method based on oil pressure waveform similarity contrast |
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