Interlocking control method for automatic shaping process of explosive surface

Abstract

The invention provides an interlocking control method for an automatic shaping process of an explosive surface. The interlocking control method comprises the following steps: step 1, collecting signals in the shaping process; the shaping process signal comprises a temperature signal, a cutting force signal and an electrostatic signal; step 2, shaping process parameter setting; 3, shaping process characteristic quantity calculation, wherein the shaping process characteristic quantity comprises a temperature signal characteristic quantity, an electrostatic signal characteristic quantity and a cutting force signal characteristic quantity; the temperature signal characteristic quantity comprises the absolute value of the temperature and the temperature increment in unit time; the electrostatic signal characteristic quantity is an accumulated maximum value of the electrostatic signal; the cutting force signal characteristic quantity comprises the maximum value of the cutting force signal and the value of the cutting force signal; and step 4, shaping process interlocking control. According to the method, comprehensive control over force, heat and electrostatic stimulation amount in the automatic shaping process of the explosive surface can be achieved, redundant hardware intervention is not needed, the control cost is reduced, and the method is efficient and safe.

Description

Technical Field

[0001] This invention belongs to the field of composite material processing technology, and relates to explosive surface shaping, specifically to an interlocking control method for an automatic explosive surface shaping process. Background Technology

[0002] The propellant surface shaping process is a crucial step in ensuring the quality of explosive loading. After the explosive charge has solidified, it needs to be shaped to achieve the desired shape and dimensional accuracy. However, during this process, the milling cutter directly contacts the explosive surface and cuts it, which can easily lead to a risk of combustion and explosion. Furthermore, due to the difference between the shape of the explosive surface and the thickness to be cut during the cutting process, the process parameters during the propellant surface shaping process will change accordingly, posing new challenges to safety control during this process.

[0003] Currently, due to the complexity and multi-condition characteristics of the explosive surface shaping process, there is an urgent need for an interlocking control method for the shaping process, which can provide a basis for parameter selection and safety control in the explosive surface shaping process. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an interlocking control method for the automatic shaping process of explosive surfaces, thereby solving the technical problem that the safety of existing control methods for the shaping process of explosive surfaces needs further improvement.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A method for interlocking control of an automatic shaping process for explosive charges, comprising the following steps: Step 1, Signal acquisition during the shaping process: The shaping process signals include temperature signals, cutting force signals, and electrostatic signals.

[0006] Step 2, setting parameters for the plastic surgery process: The frequency of the temperature signal and electrostatic signal acquisition is: The frequency of the cutting force signal acquisition is The unit time interval for signal processing is The upper limit threshold for temperature is The threshold for temperature increase per unit time is The upper limit threshold of electrostatic voltage signal is The maximum threshold value of the cutting force signal is Cutting force signal Value threshold is .

[0007] Step 3, Calculation of characteristic quantities in the shaping process: The characteristic quantities of the shaping process include temperature signal characteristic quantities, electrostatic signal characteristic quantities, and cutting force signal characteristic quantities; the temperature signal characteristic quantities include the absolute value of the temperature. and the amount of temperature increase per unit time The electrostatic signal characteristic quantity mentioned above is the cumulative maximum value of the electrostatic signal. The cutting force signal characteristics include the maximum value of the cutting force signal and the cutting force signal... value.

[0008] Step 4, Interlocking control of the plastic surgery process: The interlocking control conditions during the automatic shaping process of explosive charge are: If the absolute value of the temperature measurement greater than the upper temperature threshold If the temperature exceeds the limit, an alarm will be triggered, an audible and visual alarm will be activated, and the milling process will be stopped.

[0009] If the temperature increase per unit time Exceeding the temperature growth threshold If the temperature rises too quickly, an alarm will be triggered, and an audible and visual alarm signal will be issued to prompt the operator to take further action.

[0010] If the cumulative maximum value of the electrostatic signal Exceeding the upper limit threshold of electrostatic voltage signal If the electrostatic voltage exceeds the limit, an audible and visual alarm will be triggered, and the milling process will be stopped.

[0011] If the maximum value of the cutting force signal Exceeding the maximum value threshold of the cutting force signal If the maximum value of the cutting force signal exceeds the limit, an audible and visual alarm will be issued and the milling process will be stopped.

[0012] If the cutting force signal value Exceeding the cutting force signal Value threshold Then a cutting force signal will be reported. If the limit is exceeded, an audible and visual alarm will be triggered to prompt the operator to take further action.

[0013] Compared with the prior art, the present invention has the following technical effects: The method of this invention realizes the interlocked control of the automatic shaping process of explosive surface by acquiring and processing temperature signals, electrostatic voltage signals and cutting force signals. This method can realize the comprehensive control of force, heat and electrostatic stimulation during the automatic shaping process of explosive surface, without the need for additional hardware intervention, reducing control costs, and is efficient and safe. Attached Figure Description

[0014] Figure 1This is a diagram showing some temperature and electrostatic voltage signals during the shaping process.

[0015] Figure 2 This is a diagram of some cutting force signals during the shaping process.

[0016] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, all materials and devices used in this invention are those known in the art.

[0018] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0019] Example: This embodiment provides an interlocking control method for the automatic shaping process of explosive surfaces, which includes the following steps: Step 1, Signal acquisition during the shaping process: The forming process signals include temperature signal, cutting force signal, and electrostatic signal.

[0020] In this embodiment, the temperature signal is acquired through a thermocouple and an infrared sensor, the cutting force signal is acquired through a force sensor, and the electrostatic signal is acquired through an electrostatic tester.

[0021] Step 2, setting parameters for the plastic surgery process: The frequency of temperature and electrostatic signal acquisition is The frequency of the cutting force signal acquisition is The unit time interval for signal processing is The upper limit threshold for temperature is The threshold for temperature increase per unit time is The upper limit threshold of electrostatic voltage signal is The maximum threshold value of the cutting force signal is Cutting force signal The threshold for the root mean square value is: .

[0022] In this embodiment, the shaping tool diameter is 3cm, the tool rotation speed is 600rpm, the depth of cut is 1mm, and the feed rate is 0.1mm / r. The frequency for acquiring temperature and electrostatic signals is 100Hz. The frequency for acquiring cutting force signals is 10000Hz. The unit time for signal processing is 0.5s. The upper limit threshold for temperature is 150℃. The threshold for temperature increase per unit time is 5℃. The upper limit threshold for electrostatic voltage signals is 200V. The maximum threshold for cutting force signals is 150N. (Cutting force signal...) The threshold value is 100N.

[0023] Step 3, Calculation of characteristic quantities in the shaping process: The characteristic quantities of the shaping process include temperature signal characteristic quantities, electrostatic signal characteristic quantities, and cutting force signal characteristic quantities; the temperature signal characteristic quantities include the absolute value of the temperature. and the amount of temperature increase per unit time The characteristic quantity of an electrostatic signal is the cumulative maximum value of the electrostatic signal. The characteristic quantities of the cutting force signal include the maximum value of the cutting force signal and the cutting force signal... value.

[0024] In this embodiment, temperature signals, electrostatic voltage signals, and cutting force signals are acquired in real time during the shaping process. Some temperature signals and electrostatic voltage signals during the shaping process are shown below. Figure 1 As shown. Some cutting force signals during the shaping process are as follows: Figure 2 As shown.

[0025] In step three, the temperature increase per unit time The calculation method is as follows: ; ; In the formula: The sequence number representing the current time interval; This indicates the measured temperature value at the current time interval. This indicates the measured temperature value from the previous time interval; This indicates the unit time interval for temperature measurement.

[0026] In step three, the cumulative maximum value of the electrostatic signal The calculation method is as follows: ; ; In the formula: This indicates the collected electrostatic voltage value; This indicates the number of electrostatic voltage signal points collected per unit time.

[0027] In step three, the maximum value of the cutting force signal and cutting force signal rms value The calculation method is as follows:

[0028] In the formula: This represents the value of the resultant cutting force collected. This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the number of cutting force signal points collected per unit time.

[0029] In this embodiment, the signal characteristics of the shaping process are calculated. The maximum temperature signal is 1000 degrees Celsius, the maximum temperature increase per unit time is 0.8 degrees Celsius, the maximum electrostatic voltage signal is 110V, and the maximum cutting force signal is 90.3N. The value is 73.2N.

[0030] Step 4, Interlocking control of the plastic surgery process: The interlocking control conditions during the automatic shaping process of explosive charge are: If the absolute value of the temperature measurement greater than the upper temperature threshold If the temperature exceeds the limit, an alarm will be triggered, an audible and visual alarm will be activated, and the milling process will be stopped.

[0031] If the temperature increase per unit time Exceeding the temperature growth threshold If the temperature rises too quickly, an alarm will be triggered, and an audible and visual alarm signal will be issued to prompt the operator to take further action.

[0032] If the cumulative maximum value of the electrostatic signal Exceeding the upper limit threshold of electrostatic voltage signal If the electrostatic voltage exceeds the limit, an audible and visual alarm will be triggered, and the milling process will be stopped.

[0033] If the maximum value of the cutting force signal Exceeding the maximum value threshold of the cutting force signal If the maximum value of the cutting force signal exceeds the limit, an audible and visual alarm will be issued and the milling process will be stopped.

[0034] If the cutting force signal value Exceeding the cutting force signal Value threshold Then a cutting force signal will be reported. If the limit is exceeded, an audible and visual alarm will be triggered to prompt the operator to take further action.

[0035] In this embodiment, based on the results calculated in step three, everything is within a safe range, no alarms occur, and the shaping process continues to run.

Claims

1. A method for interlocking control of an automatic shaping process for explosive powder surfaces, characterized in that, The method includes the following steps: Step 1, Signal acquisition during the shaping process: The forming process signals include temperature, cutting force, and electrostatic signals. Step 2, setting parameters for the plastic surgery process: The frequency of the temperature signal and electrostatic signal acquisition is: The frequency of the cutting force signal acquisition is The unit time interval for signal processing is The upper limit threshold for temperature is The threshold for temperature increase per unit time is The upper limit threshold of electrostatic voltage signal is The maximum threshold value of the cutting force signal is Cutting force signal Value threshold is ; Step 3, Calculation of characteristic quantities in the shaping process: The characteristic quantities of the shaping process include temperature signal characteristic quantities, electrostatic signal characteristic quantities, and cutting force signal characteristic quantities; the temperature signal characteristic quantities include the absolute value of the temperature. and the amount of temperature increase per unit time The electrostatic signal characteristic quantity mentioned above is the cumulative maximum value of the electrostatic signal. The cutting force signal characteristics include the maximum value of the cutting force signal and the cutting force signal... value; Step 4, Interlocking control of the plastic surgery process: The interlocking control conditions during the automatic shaping process of explosive charge are: If the absolute value of the temperature measurement greater than the upper temperature threshold If the temperature exceeds the limit, an audible and visual alarm will be triggered, and the milling process will be stopped. If the temperature increase per unit time Exceeding the temperature growth threshold If the temperature rises too quickly, an alarm will be triggered, and an audible and visual alarm signal will be issued to prompt the operator to take further action. If the cumulative maximum value of the electrostatic signal Exceeding the upper limit threshold of electrostatic voltage signal If the electrostatic voltage exceeds the limit, an audible and visual alarm will be triggered and the milling process will be stopped. If the maximum value of the cutting force signal Exceeding the maximum value threshold of the cutting force signal If the maximum value of the cutting force signal exceeds the limit, an audible and visual alarm will be triggered and the milling process will be stopped. If the cutting force signal value Exceeding the cutting force signal Value threshold Then a cutting force signal will be reported. If the limit is exceeded, an audible and visual alarm will be triggered to prompt the operator to take further action.

2. The interlocking control method for the automatic shaping process of explosive charge as described in claim 1, characterized in that, In step three, the temperature increase per unit time... The calculation method is as follows: ； ； In the formula: The sequence number representing the current time interval; This indicates the measured temperature value at the current time interval. This indicates the measured temperature value from the previous time interval; This indicates the unit time interval for temperature measurement.

3. The interlocking control method for the automatic shaping process of explosive charge as described in claim 1, characterized in that, In step three, the cumulative maximum value of the electrostatic signal The calculation method is as follows: ； ； In the formula: This indicates the collected electrostatic voltage value; This indicates the number of electrostatic voltage signal points collected per unit time.

4. The interlocking control method for the automatic shaping process of explosive powder surface as described in claim 1, characterized in that, In step three, the maximum value of the cutting force signal and the cutting force signal rms value The calculation method is as follows: In the formula: This represents the value of the resultant cutting force collected. This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the collected cutting force at... Values ​​in the axial direction; This indicates the number of cutting force signal points collected per unit time.

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