CN116351997A - Online measurement and control system and method for hot forging piece for automatic forging of hot forging machine - Google Patents

Abstract

An online measurement and control system and method for hot forging pieces for automatic forging of a hot film machine relate to the technical field of automatic forging of the hot film machine, and particularly belong to an online measurement and control system and method for hot forging pieces for automatic forging of the hot film machine. The forging thickness detection device comprises an executing mechanism for adjusting each control parameter and a control module connected with the executing mechanism, wherein the control module is also respectively connected with a forging thickness detection mechanism, an actual forging parameter acquisition mechanism and an HMI module; the control module comprises a standard data storage module, a control parameter adjustment judging module, a thickness deviation calculating module, a forging control parameter deviation calculating module and a forging control parameter adjustment value calculating module. The invention has the beneficial effects of automatically and quickly adjusting the forging pressure control parameters to reduce standby time, reduce empty consumption resources and improve the stability of the forging process.

Description

Online measurement and control system and method for hot forging piece for automatic forging of hot forging machine

Technical Field

The invention relates to the technical field of automatic forging of a hot die forging machine, in particular to an online measurement and control system and method for a hot forging piece for automatic forging of the hot die forging machine.

Background

At present, in order to guarantee forging quality on an automatic forging production line of a hot forging machine, forging control parameters are usually required to be timely adjusted according to three-dimensional description detection data of a hot forging piece. However, in the hot die forging production process, three-dimensional description detection is manually performed after the hot forging piece is cooled or shot blasting is performed, before the detection result is determined, the line is stopped for waiting for the detection result, and the forging control parameter adjustment mode of the production line is determined according to the detection result, such as die closing height, forging pressure, forging temperature and production takt. Each detection needs to wait 30 to 45 minutes, during the waiting process, the surface of the die is roasted to keep the temperature of the die, and personnel also need to wait for work, so that manpower and energy resources are consumed; the forging parameters are manually adjusted, the experience accumulation of operators is highly relied on, and the stability of the forging process is not facilitated to be maintained.

Disclosure of Invention

The invention aims to provide an online measurement and control system and method for hot forging pieces for automatic forging of a hot forging machine, which can automatically and quickly adjust forging pressure control parameters so as to achieve the purposes of reducing standby time, reducing empty consumption resources and improving the stability of a forging process.

The invention provides an online measurement and control system for hot forging pieces for automatic forging of a hot forging machine, which comprises an execution mechanism for adjusting each control parameter and a control module connected with the execution mechanism, wherein the control module is also respectively connected with a forging piece thickness detection mechanism, an actual forging parameter acquisition mechanism and an HMI module; the control module may comprise a control module configured to control the control module,

the standard data storage module is used for storing standard parameter set values and tables;

the control parameter adjustment judging module is used for judging whether the control parameters need to be adjusted or not;

the thickness deviation calculation module is used for calculating the thickness deviation value of the hot forging;

the forging control parameter deviation calculating module is used for calculating forging parameter deviation values, including pressure deviation values, die-filling closed height deviation values, temperature deviation values and beat deviation values;

the forging control parameter adjustment value calculation module is used for calculating a forging parameter adjustment value, judging the forging parameter adjustment priority and locking output.

Further, the thickness detection mechanism comprises a scanning measuring instrument for measuring the measured thickness value of the forging and an infrared thermometer for measuring the instantaneous temperature value of the forging.

Further, the actual forging parameter acquisition mechanism comprises a sliding block adjustment displacement sensor for measuring an actual measurement die-filling closed height value, a pressure sensor for measuring an actual measurement forging pressure value, an infrared thermometer for measuring an actual measurement forging temperature value and a timer for measuring an actual measurement forging beat value.

Further, the standard data storage module stores a standard temperature thickness relation corresponding table, a forging pressure adjustment coefficient reference table, a material expansion coefficient reference table, a standard temperature beat relation corresponding table, a forging standard thickness value H, a forging upper tolerance H1, a forging lower tolerance H2, a die closing height value H, a forging pressure value F, a forging temperature value T, a forging beat value TT, a die closing height deviation adjustable maximum value H1max, a die closing height deviation adjustable minimum value H1min, a standard pressure adjustable maximum value F1max, a standard pressure adjustable minimum value F1min, a temperature adjustable maximum value T1max, a temperature adjustable minimum value T1min, a beat setting maximum value TT1max and a beat setting minimum value TT1min.

Furthermore, the HMI module adopts a PC or a touch screen.

Further, the invention provides an online measurement and control method for hot forging pieces for automatic forging of a hot forging machine, which comprises the following steps:

step a, the thickness detection mechanism detects an actually measured thickness value h0 and an instantaneous temperature value t0 of the hot forging and transmits the actually measured thickness value h0 and the instantaneous temperature value t0 to the control parameter adjustment judging module; the actual forging and pressing parameter acquisition mechanism acquires an actual die closing height value H0, an actual forging pressure value F0, an actual forging temperature value T0 and an actual forging beat value TT0, and transmits the actual forging and pressing parameters to the forging and pressing control parameter deviation calculation module;

step b, a control parameter adjustment judging module obtains an instantaneous temperature thickness deviation delta ht after looking up a table corresponding to the acquired instantaneous temperature t0 and standard temperature thickness relation, corrects an actual measurement thickness value through the instantaneous temperature thickness deviation delta ht to obtain a corrected actual measurement thickness value ht, wherein ht=h0+delta ht, and the corrected thickness value ht is uploaded to an HMI module and enters the step c;

c, judging a corrected actual measurement thickness value ht by a control parameter adjustment judging module, judging whether the corrected actual measurement thickness value ht exceeds the allowable range of the upper and lower tolerance of the thickness of the forging piece, if the value ht does not exceed the allowable range of the upper and lower tolerance of the forging piece, and if h-h2 is not less than or equal to h+h1, the control parameter is kept unchanged, and returning to the step a to wait for the next workpiece to enter;

d, calculating a thickness deviation value delta h by using the corrected actual measured thickness value ht and the forge piece standard thickness value h by the thickness deviation calculation module, wherein delta h=ht-h; the forging control parameter deviation calculation module calculates a die-filling closed height deviation value delta H by using an actual measured die closed height value H0 and a set die closed height value H, wherein delta H=H20-H; calculating the actual forging pressure value F0 and the set forging pressure value F to obtain a pressure deviation value delta F, delta F=F0-F; calculating the actually measured forging temperature value T0 and the set forging temperature value T to obtain a temperature deviation value delta T, wherein delta T=T0-T; the actually measured forging beat value TT0 and the set forging beat value TT are calculated to obtain a beat deviation value delta TT, wherein delta TT=TT0-TT;

step e, calculating a die-filling closed height deviation adjustment value H1 by using the thickness deviation value delta H and the die-filling closed height deviation value delta H obtained in the step d, wherein H1 = delta H-delta H;

f, comparing the die-filling closed height deviation adjustment value H1 with the die-filling closed height deviation adjustable maximum value H1max and the die-filling closed height deviation adjustable minimum value H1min, if H1min is less than or equal to H1 and less than or equal to H1max, locking and adjusting the die-filling closed height, outputting the die-filling closed height deviation adjustment value H1 to an executing mechanism, returning to the step a, waiting for the next workpiece to enter, simultaneously modifying the set die-filling closed height value H=H+H2, and uploading the modified set die-filling closed height value H to an HMI module for display; otherwise, display the alert on the HMI module-! A mode failure ", and enter step g;

step g, checking a table by using the thickness deviation value delta h and the pressure deviation value delta F obtained in the step d and a forging pressure adjustment coefficient reference table to obtain a pressure adjustment value F1;

comparing the pressure adjusting value F1 with a standard pressure adjustable maximum value F1max and a standard pressure adjustable minimum value F1min, locking and adjusting forging pressure if F1min is not less than F1 and not more than F1max, outputting the pressure adjusting value F1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging pressure value F=F+F1, and uploading the modified set forging pressure value F to an HMI module for display; otherwise the HMI module displays the alert-! A B mode fail ", and enter step i;

step i, looking up a table by using the thickness deviation value delta h and the temperature deviation value delta T obtained in the step d and a material expansion coefficient reference table to obtain a temperature adjustment value T1;

step j, comparing the temperature adjustment value with a temperature adjustable maximum value T1max and a temperature adjustable minimum value T1min, if T1min is less than or equal to T1max, locking and adjusting the forging temperature, outputting the temperature adjustment value T1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging temperature value T=T+T1, and uploading the modified set forging temperature value T to an HMI module for display; otherwise the HMI module displays the alert-! A B C mode failure ", and entering a step k;

step k, looking up a table of the thickness deviation value delta h and the beat deviation value delta TT obtained in the step d and a material expansion coefficient reference table to obtain a beat adjustment value TT1;

step l, comparing the beat adjustment value TT1 with a beat set maximum value TT1max and a beat set minimum value TT1min, if TT1min is less than or equal to TT1max, locking and adjusting the forging beat, outputting the beat adjustment value TT1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging beat value TT=TT+TT1, and uploading the modified set forging beat value TT to an HMI module for display; otherwise the HMI module displays the alert-! Failure of A B C D mode, system shutdown enters a manual intervention mode;

and (m) storing the calibrated measured thickness value obtained from the step (b) each time to form a calibrated thickness history report, and calculating and displaying Cpk values.

According to the hot forging piece online measurement and control system and the method for automatic forging of the hot forging machine, provided by the invention, through online measurement of the thickness data of the hot forging piece, the thickness deviation is compared with the forging detection parameter, the forging parameters are quickly generated, controlled and adjusted, and the instantaneous parameter correction is provided, so that the forging pressure control parameter can be automatically and quickly adjusted, the beneficial effects of reducing the standby time, reducing the air consumption resource and improving the stability of the forging process are achieved. The hot forging correction thickness value historical data can be generated, the CPK value is analyzed on line, the stable capability of the forging process is known in real time, the forging quality is guaranteed, when the hot forging thickness data are measured, the measured thickness value of the forging is collected, the instantaneous temperature value of the forging is also collected, the measured thickness value is calibrated by utilizing the standard temperature thickness relation corresponding table, the influence of temperature on the forging thickness value is eliminated, the calibrated measured thickness value is more similar to the real thickness value of the forging, more accurate basic data are provided for calculating the adjustment value of the control parameter, and the adjustment of the control parameter is more accurate.

Drawings

FIG. 1 is a schematic block diagram of an on-line measurement and control system for hot forging pieces for automatic forging of a hot forging machine according to the present invention.

FIG. 2 is a flow chart of the hot forging on-line measurement and control method for the automatic forging of the hot forging machine.

Description of the embodiments

The invention provides an online measurement and control system for hot forging pieces for automatic forging of a hot forging machine, which is shown in figure 1 and comprises an actuating mechanism for adjusting each control parameter and a control module connected with the actuating mechanism, wherein the control module is also respectively connected with a forging piece thickness detection mechanism, an actual forging parameter acquisition mechanism and an HMI module. The control module selects a common programmable controller in the market, the output end of the control module is connected with an executing mechanism, and the executing mechanism is an existing executing mechanism for adjusting die filling closing height, forging pressure, forging temperature and forging beat in an existing automatic forging production line of the hot die forging machine. The input end is respectively connected with a forging thickness detection mechanism and an actual forging parameter acquisition mechanism, wherein the thickness detection mechanism comprises a scanning measuring instrument for measuring the actual thickness value of the forging and an infrared thermometer for measuring the instantaneous temperature value of the forging; the actual forging and pressing parameter acquisition mechanism comprises a sliding block adjustment displacement sensor for measuring an actual measurement die-filling closed height value, a pressure sensor for measuring an actual measurement forging pressure value, an infrared thermometer for measuring an actual measurement forging temperature value and a timer for measuring an actual measurement forging beat value. The communication interface of the control module is connected with the HMI module, the HMI module can adopt a PC or a touch screen, the interface configuration is realized by configuration software such as a configuration king, force control and the like, the HMI module man-machine interaction interface comprises a main interface and a process capability interface, wherein the main interface comprises a window for displaying currently set control parameters, a set die-filling sealing height value, a set forging pressure value, a set forging temperature value and a set forging beat value are displayed, and meanwhile, the main interface further comprises a parameter adjustment mode warning window for displaying a mode adjustment failure warning, and the HMI module man-machine interaction interface comprises: "alert-! A mode failure "," alert-! A B mode failure "," alert-! A B C mode failure "," alert-! aBcD mode failure "; the process capability interface is used for displaying a calibration thickness history report and CPK values, and the CPK values are obtained by writing scripts by adopting a common calculation method in the field. The control module comprises a standard data storage module, a control parameter adjustment judging module, a thickness deviation calculating module and a forging control parameter deviation calculating module, wherein the forging control parameter adjustment value calculating module is realized by programming a controller according to functions and a hot forging part on-line measurement and control method for automatic forging of the hot forging machine; the standard data storage module is used for storing standard parameter set values and tables, and comprises a standard temperature thickness relation corresponding table, a forging pressure adjustment coefficient reference table, a material expansion coefficient reference table, a standard temperature beat relation corresponding table, a forging standard thickness value H, a forging thickness upper tolerance H1, a forging thickness lower tolerance H2, a die-filling closed height value H, a forging pressure value F, a forging temperature value T, a forging beat value TT, a die-filling closed height deviation adjustable maximum value H1max, a die-filling closed height deviation adjustable minimum value H1min, a standard pressure adjustable maximum value F1max, a standard pressure adjustable minimum value F1min, a temperature adjustable maximum value T1max, a temperature adjustable minimum value T1min, a beat set maximum value TT1max and a beat set minimum value TT1min; the thickness deviation calculation module is used for calculating the thickness deviation value of the hot forging; the forging control parameter deviation calculating module is used for calculating a pressure deviation value, a die filling closed height deviation value, a temperature deviation value and a beat deviation value; the forging control parameter adjustment value calculation module is used for calculating a forging parameter adjustment value, judging the forging parameter adjustment priority and locking output.

The invention provides an online measurement and control method for hot forging pieces for automatic forging of a hot forging machine, which is shown in fig. 2 and comprises the following steps:

step a, the thickness detection mechanism detects an actually measured thickness value h0 and an instantaneous temperature value t0 of the hot forging and transmits the actually measured thickness value h0 and the instantaneous temperature value t0 to the control parameter adjustment judging module; the actual forging and pressing parameter acquisition mechanism acquires an actual die closing height value H0, an actual forging pressure value F0, an actual forging temperature value T0 and an actual forging beat value TT0, and transmits the actual forging and pressing parameters to the forging and pressing control parameter deviation calculation module;

step b, a control parameter adjustment judging module obtains an instantaneous temperature thickness deviation delta ht after looking up a table corresponding to the acquired instantaneous temperature t0 and standard temperature thickness relation, corrects an actual measurement thickness value through the instantaneous temperature thickness deviation delta ht to obtain a corrected actual measurement thickness value ht, wherein ht=h0+delta ht, and the corrected thickness value ht is uploaded to an HMI module and enters the step c;

c, judging a corrected actual measurement thickness value ht by a control parameter adjustment judging module, judging whether the corrected actual measurement thickness value ht exceeds the allowable range of the upper and lower tolerance of the thickness of the forging piece, if the value ht does not exceed the allowable range of the upper and lower tolerance of the forging piece, and if h-h2 is not less than or equal to h+h1, the control parameter is kept unchanged, and returning to the step a to wait for the next workpiece to enter;

d, calculating a thickness deviation value delta h by using the corrected actual measured thickness value ht and the forge piece standard thickness value h by the thickness deviation calculation module, wherein delta h=ht-h; the forging control parameter deviation calculation module calculates a die-filling closed height deviation value delta H by using an actual measured die closed height value H0 and a set die closed height value H, wherein delta H=H20-H; calculating the actual forging pressure value F0 and the set forging pressure value F to obtain a pressure deviation value delta F, delta F=F0-F; calculating the actually measured forging temperature value T0 and the set forging temperature value T to obtain a temperature deviation value delta T, wherein delta T=T0-T; the actually measured forging beat value TT0 and the set forging beat value TT are calculated to obtain a beat deviation value delta TT, wherein delta TT=TT0-TT;

step e, calculating a die-filling closed height deviation adjustment value H1 by using the thickness deviation value delta H and the die-filling closed height deviation value delta H obtained in the step d, wherein H1 = delta H-delta H;

f, comparing the die-filling closed height deviation adjustment value H1 with the die-filling closed height deviation adjustable maximum value H1max and the die-filling closed height deviation adjustable minimum value H1min, if H1min is less than or equal to H1 and less than or equal to H1max, locking and adjusting the die-filling closed height, outputting the die-filling closed height deviation adjustment value H1 to an executing mechanism, returning to the step a, waiting for the next workpiece to enter, simultaneously modifying the set die-filling closed height value H=H+H2, and uploading the modified set die-filling closed height value H to an HMI module for display; otherwise, display the alert on the HMI module-! A mode failure ", and enter step g;

step g, checking a table by using the thickness deviation value delta h and the pressure deviation value delta F obtained in the step d and a forging pressure adjustment coefficient reference table to obtain a pressure adjustment value F1;

comparing the pressure adjusting value F1 with a standard pressure adjustable maximum value F1max and a standard pressure adjustable minimum value F1min, locking and adjusting forging pressure if F1min is not less than F1 and not more than F1max, outputting the pressure adjusting value F1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging pressure value F=F+F1, and uploading the modified set forging pressure value F to an HMI module for display; otherwise the HMI module displays the alert-! A B mode fail ", and enter step i;

step i, looking up a table by using the thickness deviation value delta h and the temperature deviation value delta T obtained in the step d and a material expansion coefficient reference table to obtain a temperature adjustment value T1;

step j, comparing the temperature adjustment value with a temperature adjustable maximum value T1max and a temperature adjustable minimum value T1min, if T1min is less than or equal to T1max, locking and adjusting the forging temperature, outputting the temperature adjustment value T1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging temperature value T=T+T1, and uploading the modified set forging temperature value T to an HMI module for display; otherwise the HMI module displays the alert-! A B C mode failure ", and entering a step k;

step k, looking up a table of the thickness deviation value delta h and the beat deviation value delta TT obtained in the step d and a material expansion coefficient reference table to obtain a beat adjustment value TT1;

step l, comparing the beat adjustment value TT1 with a beat set maximum value TT1max and a beat set minimum value TT1min, if TT1min is less than or equal to TT1max, locking and adjusting the forging beat, outputting the beat adjustment value TT1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging beat value TT=TT+TT1, and uploading the modified set forging beat value TT to an HMI module for display; otherwise the HMI module displays the alert-! Failure of A B C D mode, system shutdown enters a manual intervention mode;

and (m) storing the calibrated actual measurement thickness values obtained from the step (b) each time to form a calibrated thickness history report, setting the CPK value to be null if the number of the calibrated thickness value history data is less than 25, and calculating and displaying the CPK value if the number of the calibrated thickness value history data is greater than or equal to 25.

An online measurement and control system and method for hot forging pieces for automatic forging of a hot forging machine relate to the technical field of automatic forging of the hot forging machine, and particularly belong to an online measurement and control system and method for hot forging pieces for automatic forging of the hot forging machine. The forging thickness detection device comprises an executing mechanism for adjusting each control parameter and a control module connected with the executing mechanism, wherein the control module is also respectively connected with a forging thickness detection mechanism, an actual forging parameter acquisition mechanism and an HMI module; the control module comprises a standard data storage module, a control parameter adjustment judging module, a thickness deviation calculating module, a forging control parameter deviation calculating module and a forging control parameter adjustment value calculating module. The invention has the beneficial effects of automatically and quickly adjusting the forging pressure control parameters to reduce standby time, reduce empty consumption resources and improve the stability of the forging process.

Claims (6)

1. The hot forging piece on-line measurement and control system for automatic forging of the hot forging machine comprises an actuating mechanism for adjusting each control parameter and a control module connected with the actuating mechanism, and is characterized in that the control module is also respectively connected with a forging piece thickness detection mechanism, an actual forging parameter acquisition mechanism and an HMI module; the control module comprises a standard data storage module, a control parameter adjustment judging module, a thickness deviation calculating module, a forging control parameter deviation calculating module and a forging control parameter adjustment value calculating module.

2. The online measurement and control system for hot forging of the hot forging machine according to claim 1, wherein the thickness detection mechanism comprises a scanning measuring instrument and an infrared thermometer.

3. The online measurement and control system for the automatic forging of the hot forging machine according to claim 1, wherein the actual forging parameter acquisition mechanism comprises a slide block adjustment displacement sensor, a pressure sensor, an infrared thermometer and a timer.

4. The online measurement and control system for the hot forging of the automatic forging machine of the hot forging machine according to claim 1, wherein the standard data storage module stores a standard temperature thickness relation corresponding table, a forging pressure adjustment coefficient reference table, a material expansion coefficient reference table, a standard temperature beat relation corresponding table, a forging standard thickness value H, a forging thickness upper tolerance H1, a forging thickness lower tolerance H2, a set die closing height value H, a set forging pressure value F, a set forging temperature value T, a set forging beat value TT, a die filling closing height deviation adjustable maximum value H1max, a die filling closing height deviation adjustable minimum value H1min, a standard pressure adjustable maximum value F1max, a standard pressure adjustable minimum value F1min, a temperature adjustable maximum value T1max, a temperature adjustable minimum value T1min, a beat setting maximum value TT1max and a beat setting minimum value TT1min.

5. The on-line measurement and control system for hot forging of a hot forging machine according to claim 1, wherein the HMI module adopts a PC or a touch screen.

6. An on-line measurement and control method for an on-line measurement and control system for hot forging pieces for automatic forging of a hot forging machine according to claim 4, comprising the steps of:

step a, the thickness detection mechanism detects an actually measured thickness value h0 and an instantaneous temperature value t0 of the hot forging and transmits the actually measured thickness value h0 and the instantaneous temperature value t0 to the control parameter adjustment judging module; the actual forging and pressing parameter acquisition mechanism acquires an actual die closing height value H0, an actual forging pressure value F0, an actual forging temperature value T0 and an actual forging beat value TT0, and transmits the actual forging and pressing parameters to the forging and pressing control parameter deviation calculation module;

step b, a control parameter adjustment judging module obtains an instantaneous temperature thickness deviation delta ht after looking up a table corresponding to the acquired instantaneous temperature t0 and standard temperature thickness relation, corrects an actual measurement thickness value through the instantaneous temperature thickness deviation delta ht to obtain a corrected actual measurement thickness value ht, wherein ht=h0+delta ht, and the corrected thickness value ht is uploaded to an HMI module and enters the step c;

c, judging a corrected actual measurement thickness value ht by a control parameter adjustment judging module, judging whether the corrected actual measurement thickness value ht exceeds the allowable range of the upper and lower tolerance of the thickness of the forging piece, if the value ht does not exceed the allowable range of the upper and lower tolerance of the forging piece, and if h-h2 is not less than or equal to h+h1, the control parameter is kept unchanged, and returning to the step a to wait for the next workpiece to enter;

d, calculating a thickness deviation value delta h by using the corrected actual measured thickness value ht and the forge piece standard thickness value h by the thickness deviation calculation module, wherein delta h=ht-h; the forging control parameter deviation calculation module calculates a die-filling closed height deviation value delta H by using an actual measured die closed height value H0 and a set die closed height value H, wherein delta H=H20-H; calculating the actual forging pressure value F0 and the set forging pressure value F to obtain a pressure deviation value delta F, delta F=F0-F; calculating the actually measured forging temperature value T0 and the set forging temperature value T to obtain a temperature deviation value delta T, wherein delta T=T0-T; the actually measured forging beat value TT0 and the set forging beat value TT are calculated to obtain a beat deviation value delta TT, wherein delta TT=TT0-TT;

step e, calculating a die-filling closed height deviation adjustment value H1 by using the thickness deviation value delta H and the die-filling closed height deviation value delta H obtained in the step d, wherein H1 = delta H-delta H;

f, comparing the die-filling closed height deviation adjustment value H1 with the die-filling closed height deviation adjustable maximum value H1max and the die-filling closed height deviation adjustable minimum value H1min, if H1min is less than or equal to H1 and less than or equal to H1max, locking and adjusting the die-filling closed height, outputting the die-filling closed height deviation adjustment value H1 to an executing mechanism, returning to the step a, waiting for the next workpiece to enter, simultaneously modifying the set die-filling closed height value H=H+H2, and uploading the modified set die-filling closed height value H to an HMI module for display; otherwise, display the alert on the HMI module-! A mode failure ", and enter step g;

step g, checking a table by using the thickness deviation value delta h and the pressure deviation value delta F obtained in the step d and a forging pressure adjustment coefficient reference table to obtain a pressure adjustment value F1;

comparing the pressure adjusting value F1 with a standard pressure adjustable maximum value F1max and a standard pressure adjustable minimum value F1min, locking and adjusting forging pressure if F1min is not less than F1 and not more than F1max, outputting the pressure adjusting value F1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging pressure value F=F+F1, and uploading the modified set forging pressure value F to an HMI module for display; otherwise the HMI module displays the alert-! A B mode fail ", and enter step i;

step i, looking up a table by using the thickness deviation value delta h and the temperature deviation value delta T obtained in the step d and a material expansion coefficient reference table to obtain a temperature adjustment value T1;

step j, comparing the temperature adjustment value with a temperature adjustable maximum value T1max and a temperature adjustable minimum value T1min, if T1min is less than or equal to T1max, locking and adjusting the forging temperature, outputting the temperature adjustment value T1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging temperature value T=T+T1, and uploading the modified set forging temperature value T to an HMI module for display; otherwise the HMI module displays the alert-! A B C mode failure ", and entering a step k;

step k, looking up a table of the thickness deviation value delta h and the beat deviation value delta TT obtained in the step d and a material expansion coefficient reference table to obtain a beat adjustment value TT1;

step l, comparing the beat adjustment value TT1 with a beat set maximum value TT1max and a beat set minimum value TT1min, if TT1min is less than or equal to TT1max, locking and adjusting the forging beat, outputting the beat adjustment value TT1 to an executing mechanism, returning to the step a to wait for the next workpiece to enter, modifying the set forging beat value TT=TT+TT1, and uploading the modified set forging beat value TT to an HMI module for display; otherwise the HMI module displays the alert-! Failure of A B C D mode, system shutdown enters a manual intervention mode;

and (m) storing the calibrated measured thickness value obtained from the step (b) each time to form a calibrated thickness history report, and calculating and displaying Cpk values.

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