A fixed-length feeding and dispensing method for rim blank machining

Abstract

The application relates to the technical field of vehicle rim manufacturing, in particular to a fixed-length feeding and distributing method for rim blank processing, wherein the method comprises the following steps: obtaining preset blank target fixed-length parameters, shearing action cycle parameters and distributing stroke parameters, and obtaining real-time position signals of feeding rollers, shearing force feedback signals of a shearing station and position feedback signals of a distributing mechanism; calculating a basic shearing triggering position according to the real-time position signals and the blank target fixed-length parameters; calculating an additional displacement compensation amount according to the shearing force feedback signals, and superimposing the additional displacement compensation amount on the basic shearing triggering position to obtain a corrected shearing triggering position. Therefore, the problems of low production efficiency of traditional stop shearing, poor fixed-length accuracy of non-stop shearing, lagging distribution connection and insufficient error compensation under multiple working conditions are solved.

Description

Technical Field

[0001] This application relates to the field of vehicle steel rim manufacturing technology, and in particular to a fixed-length feed material distribution method for processing steel rim blanks. Background Technology

[0002] As a core production area of ​​the automotive and construction machinery parts industry, vehicle steel rim manufacturing is facing enormous pressure to upgrade to high-efficiency, high-precision, and large-scale continuous production. Steel rim blank fixed-length feeding and material distribution processing usually relies on fixed-length feeding rollers, fixed-length shearing by a shearing machine, and material distribution mechanism for material transfer. This can precisely control the blank cutting length, ensure material connection between processes, and match the subsequent forming cycle, which is a key technology for achieving efficient and high-quality processing of steel rim blanks.

[0003] Traditional fixed-length feed shearing methods, to ensure length accuracy, typically involve feeding the strip to the target position using feed rollers and then completely stopping the machine before performing the shearing action. While this method ensures the strip is stationary during shearing, making length accuracy relatively easy to guarantee, each processing cycle requires a complete process of deceleration, stopping, and restarting. The accumulated delays from downtime and material distribution lead to significant cycle time losses, making it difficult to meet the efficiency requirements of large-scale continuous production. If a non-stop shearing mode with continuous strip feeding is used, the shearing impact force generated at the moment the cutter enters will cause instantaneous longitudinal movement of the strip, resulting in the actual cutting position deviating from the encoder measurement. This instantaneous impact displacement occurs within a millisecond-level time window, falling within the position measurement blind zone. Existing length compensation methods are designed for steady-state errors such as feed roller slippage, roller wear, and strip tension fluctuations, and cannot effectively eliminate the instantaneous displacement caused by the shearing impact, meaning that the length accuracy of non-stop shearing consistently fails to meet process requirements. Summary of the Invention

[0004] This application provides a fixed-length feeding and material distribution method for steel ring blank processing, in order to solve the problems of low production efficiency of traditional stop-shearing, poor fixed-length accuracy of stop-shearing, delayed material distribution connection, and insufficient error compensation under multiple working conditions in related technologies.

[0005] The first aspect of this application provides a fixed-length feeding and material distribution method for steel ring billet processing, including the following steps: obtaining preset billet target fixed-length parameters, shearing action cycle parameters, material distribution stroke parameters, as well as the real-time position signal of the feed roller, the shearing force feedback signal of the shearing station, and the position feedback signal of the material distribution mechanism; The basic shearing trigger position is calculated based on the real-time position signal and the target length parameter of the billet; Based on the shear force feedback signal, the additional displacement compensation is calculated, and the additional displacement compensation is superimposed on the basic shear trigger position to obtain the corrected shear trigger position. A feed rate control curve is generated based on the corrected shear trigger position; a material distribution pre-positioning control signal is generated based on the corrected shear trigger position and the shear action cycle parameters. The feed speed control curve is sent to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously and does not completely stop. The pre-positioning control signal for material distribution is sent to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, and then move and output the blank after receiving it.

[0006] A second aspect of this application provides a fixed-length feed and feeding system for machining steel ring blanks, comprising: The acquisition module is used to acquire preset target length parameters of the billet, shearing cycle parameters, material distribution stroke parameters, as well as the real-time position signal of the feed roller, the shearing force feedback signal of the shearing station, and the position feedback signal of the material distribution mechanism. The calculation module is used to calculate the basic shear trigger position based on the real-time position signal and the target length parameter of the billet; calculate the additional displacement compensation amount based on the shear force feedback signal, and superimpose the additional displacement compensation amount onto the basic shear trigger position to obtain the corrected shear trigger position; generate a feed rate control curve based on the corrected shear trigger position; and generate a material distribution pre-positioning control signal based on the corrected shear trigger position and the shearing action cycle parameter; and The output module is used to send the feed speed control curve to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously without complete shutdown. The output module sends the material distribution pre-positioning control signal to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, receive the billet, and then move it horizontally for output.

[0007] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a fixed-length feed and material distribution method for steel ring billet processing as described in the above embodiments.

[0008] A fourth aspect of this application provides a computer-readable storage medium having a computer program or instructions stored thereon, which, when executed, implement a fixed-length feed and material distribution method for processing steel ring blanks as described in the above embodiments.

[0009] The beneficial effects of the embodiments of this application are as follows: (1) This application calculates the additional displacement compensation of shear impact in real time through shear force feedback signal, corrects the shear trigger position in advance, and realizes high-precision fixed-length shearing under the working condition of continuous strip feeding without complete shutdown; it not only eliminates the cycle loss caused by deceleration, shutdown and restart process in the traditional shutdown shearing method, but also solves the problem of fixed-length accuracy deviation caused by instantaneous spurring of shear impact in the non-stop shearing mode, and significantly improves production efficiency under the premise of ensuring fixed-length accuracy.

[0010] (2) This application constructs a multi-dimensional error correction system. Through shear force waveform feature refinement compensation, peak impact correction, feed roll slippage correction, material thickness springback compensation and other means, it can perform adaptive accuracy compensation for various working conditions such as different materials, different thicknesses of strip steel, roll surface wear, and sudden load changes, which broadens the scope of process application and improves the fixed length stability under complex production conditions.

[0011] (3) This application achieves seamless connection between the shearing process and the material sorting process through the material sorting pre-positioning sequence control, reducing the waiting time between processes; at the same time, the steel coil scrap is classified and diverted for utilization through the tail material length classification processing mechanism, which improves the material utilization rate and the degree of production automation, and meets the needs of large-scale continuous production of steel ring blanks.

[0012] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic flowchart of a fixed-length feed material distribution method for steel ring blank processing according to an embodiment of this application; Figure 2 This is a block diagram of a fixed-length feed and material distribution system for processing steel ring blanks according to a specific embodiment of this application; Figure 3 This is a schematic diagram of the structure of an electronic device according to a specific embodiment of this application. Detailed Implementation

[0014] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0015] The following description, with reference to the accompanying drawings, describes a method, system, electronic device, and storage medium for fixed-length feed material distribution in steel ring billet processing according to embodiments of this application. Addressing the problems mentioned in the background art, such as insufficient accuracy in continuous shearing, inability to quantitatively compensate for instantaneous displacement during shearing impact, loss of cycle time during process transitions, and lack of error correction under multiple working conditions, this application provides a fixed-length feed material distribution method for steel ring billet processing. In this method, the additional displacement compensation amount for shearing impact is calculated in real time through shearing force feedback signals, and the shearing trigger position is corrected in advance. Combined with feed speed planning, multi-dimensional error correction, and material distribution pre-positioning control, fixed-length shearing and synchronous material distribution are completed under the condition of continuous strip feeding without complete machine stoppage. This solves the problems of low production efficiency in traditional stop-shearing, poor fixed-length accuracy in non-stop shearing, delayed material distribution transitions, and insufficient error compensation under multiple working conditions.

[0016] Specifically, Figure 1 This is a schematic flowchart of a fixed-length feed material distribution method for processing steel ring blanks, provided in an embodiment of this application.

[0017] like Figure 1 As shown, this fixed-length feed material distribution method for processing steel ring blanks includes the following steps: In step S101, the preset target length parameters of the billet, the shearing cycle parameters, the material distribution stroke parameters, as well as the real-time position signal of the feed roller, the shearing force feedback signal of the shearing station, and the position feedback signal of the material distribution mechanism are obtained.

[0018] Among them, the target length parameter for the billet is calculated and issued by the upper-level process system based on the circumference of the steel ring forming after deducting the weld allowance, and is the target length value for strip shearing, denoted as . The shearing cycle parameter is the complete shearing cycle time of the crank mechanism of the shearing machine, denoted as . The parameters are calibrated by the equipment's mechanical parameters. The material distribution stroke parameter is the travel distance of the material distribution trolley from the initial standby position to the shearing and receiving position, denoted as... .

[0019] The real-time position signal of the feed roller is acquired by an incremental encoder installed on the driven shaft end of the feed roller. The encoder resolution is not less than 1024 pulses / revolution, combined with the nominal diameter of the feed roller. The real-time strip feed length and pulse equivalent are calculated. ,in This refers to the number of pulses per encoder revolution; in this embodiment, the feed roller diameter is 200mm, the encoder outputs 1024 pulses / revolution, and the pulse equivalent is approximately 0.613mm / pulse. The shearing force feedback signal at the shearing station is acquired by piezoelectric force sensors installed on both sides of the upper shear blade holder, with a sampling frequency of not less than 1kHz, used to capture the time-domain waveform of the impact load at the moment of shearing. The position feedback signal of the material distribution mechanism is provided by slotted proximity switches installed at both ends of the material distribution trolley track, used to calibrate the initial position and receiving position of the material distribution trolley and trigger the origin reset.

[0020] In step S102, the basic shear trigger position is calculated based on the real-time position signal and the target length parameter of the billet; the additional displacement compensation is calculated based on the shear force feedback signal, and the additional displacement compensation is superimposed on the basic shear trigger position to obtain the corrected shear trigger position; the feed rate control curve is generated based on the corrected shear trigger position; and the material distribution pre-positioning control signal is generated based on the corrected shear trigger position and the shearing action cycle parameter.

[0021] Specifically, the basic shear trigger position refers to the initial trigger position obtained by theoretical measurement of the encoder. The formula for calculating the basic shear trigger position is:

[0022] in, This is the mechanical distance compensation value, which is the fixed physical distance from the encoder detection point to the shear blade edge. It is determined by the equipment installation accuracy and is 120mm in this embodiment.

[0023] The additional displacement compensation is used to offset the longitudinal movement error caused by the shear blade impacting the strip during shearing: When the shear blade cuts into the strip during shearing, the horizontal component of the impact load will cause the strip to momentarily move forward, resulting in the actual cutting position being longer than the set position. Therefore, shearing needs to be triggered earlier. The corrected shearing trigger position is:

[0024] in, To compensate for the additional displacement, the base value is pre-calibrated through a shear impact test.

[0025] The feed rate control curve adopts a three-stage S-shaped speed planning of "high-speed feed - deceleration and positioning - low-speed shearing": the strip is fed at a set high speed for most of the stroke. Feed, distance from the shear trigger position Start deceleration at point Deceleration, in this embodiment , Upon reaching the trigger position, the speed drops to a low shearing speed. In this embodiment This ensures stable strip speed during shearing and reduces impact load fluctuations.

[0026] In step S103, the feed speed control curve is sent to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously and does not completely stop. The material distribution pre-positioning control signal is sent to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, receive the billet, and then move it horizontally for output.

[0027] Specifically, the feed drive mechanism uses a servo motor paired with a reducer to drive the feed rollers. After receiving the speed control curve, it achieves precise tracking through a speed closed loop, with the steady-state speed error controlled within ±0.5%. The shearing action is driven by a servo crank mechanism, completing the shearing while the strip is continuously fed at a low speed, without the need to stop and wait. The material distribution mechanism uses a track-type material distribution trolley driven by a variable frequency motor. After receiving the start signal, it moves from the initial position to the receiving position, arriving just below the cutting edge to receive the billet when the shearing is completed, and then moves it horizontally to the next rolling forming station.

[0028] The above is the basic control process for continuous fixed-length shearing. To address different operating conditions in actual production, such as variations in shearing impact characteristics, sudden load changes, feed roller slippage, material springback, material distribution timing deviations, and tailings processing, this application further refines the following steps to achieve multi-dimensional accuracy compensation and full-condition adaptive control: In step S104, the additional displacement compensation amount is refined based on the shear force waveform characteristics.

[0029] To address the differences in shear impact characteristics of strip steel of varying thicknesses and materials, the longitudinal displacement is quantitatively calculated using the time-domain waveform of shear force. The specific steps are as follows: Extract the complete waveform characteristics of the shear force feedback signal before and after the shear trigger moment, including the rising edge slope, peak value, falling edge slope, and impact duration. Calculate the shear impact impulse through integration.

[0030] in, Shear impact impulse, in N·s; The moment the shear blade contacts the strip steel. This is the moment when the shearing is completed; This represents the real-time shear force, expressed in N (N).

[0031] The additional displacement compensation is linearly related to the shear impact impulse, and the calculation formula is as follows:

[0032] in, The impact displacement calibration coefficient, in mm / (N·s), is determined through offline shearing tests, taking into account factors such as strip linear density, roller friction coefficient, shear blade clearance, and system damping.

[0033] In this embodiment, the 3mm thick Q235 strip steel has a width of 120mm and a shear impact impulse of approximately 12N·s. (Calibration) Substituting into the calculation, we get In actual production, for commonly used steel rings such as Q235, Q345, and HC340LA, different thicknesses are pre-calibrated. The values ​​form a mapping table, and when called, they are combined with the waveform integration results acquired in real time for interpolation calculation to ensure compensation accuracy.

[0034] In step S105, impact correction is performed based on the peak shear force.

[0035] To address sudden changes in impact load caused by excessive strip thickness and localized hard spots, the compensation amount is amplified under high-impact conditions. Specifically, the following operations are performed: Extracting peak features of shear force feedback signal Unit N, when the peak value exceeds the preset impact threshold When the condition is determined to be a strong impact condition, the preset impact threshold is set according to the strip material and thickness, and is generally 115%~125% of the rated shear force of that specification; in this embodiment, the rated shear force of 3mm thick Q235 strip is 15kN, and the impact threshold is set to 18kN.

[0036] Under high impact conditions, the instantaneous change in feed rate is calculated based on the peak characteristics and the current feed rate:

[0037] in, This represents the instantaneous change in feed rate, expressed in m / s. The velocity variation coefficient is dimensionless and calibrated experimentally. The current shearing speed is low.

[0038] The additional displacement compensation is corrected based on the instantaneous change in feed rate. The corrected compensation is as follows:

[0039] In this embodiment, when the peak shear force reaches 19kN, the instantaneous change in feed rate is calculated to be approximately 0.067m / s, and the corrected additional displacement compensation is approximately 1.5mm. By amplifying the compensation, the additional sway caused by the strong impact is offset, ensuring that the fixed length deviation is controlled within ±0.5mm.

[0040] In step S106, slippage correction is performed based on the feed rate deviation.

[0041] To address the slippage issue caused by wear on the feed roll surface and fluctuations in strip tension, the basic trigger position is quantitatively corrected based on speed deviation. Specifically, the following operations are performed: The actual feed speed of the strip is collected by the encoder on the non-powered measuring roller on the discharge side. The unit is m / s; the linear velocity of the roller surface is acquired by the encoder of the feed roller drive motor. Unit: m / s; Calculate feed rate deviation:

[0042] The slip ratio is:

[0043] When slip ratio Exceeding the preset deviation threshold If this occurs, it is determined that the feed roller is slipping. The preset deviation threshold is generally set to 4%~6% to avoid frequent adjustments caused by small fluctuations; in this embodiment, it is set to 5%.

[0044] Calculate the slippage correction factor:

[0045] Because the encoder's measured length exceeds the actual feed length of the strip during slippage, the shearing trigger needs to be delayed. The corrected basic shearing trigger position is:

[0046] in, The corrected base shear trigger position is shown in mm.

[0047] In this embodiment, when the slip ratio reaches 6.2% due to roller surface wear, The base trigger position is 1380mm, and after correction it is about 1471mm. The insufficient feed length caused by slippage is compensated by delay triggering.

[0048] In step S107, springback compensation is performed based on material and thickness.

[0049] To address the finished product length deviation caused by the elastic springback of the strip after shearing, the target length is quantitatively corrected using the material's mechanical properties. Specifically, the following steps are performed: Obtain the thickness and material strength parameters of the current billet, and calculate the length springback compensation based on the preset "material-thickness-springback rate" mapping relationship. The springback compensation is the elastic elongation of the strip after shear release, and the calculation formula is:

[0050] in, This is the length springback compensation amount, in mm; The value represents the yield strength of the strip steel, expressed in MPa. The elastic modulus of steel is taken as 206 GPa; The springback correction factor is dimensionless and is determined through testing, taking into account the effects of shearing method and blade clearance. It is generally taken as 1.05~1.15.

[0051] The length springback compensation is added to the target length parameter of the billet to obtain the corrected target length value:

[0052] in, The corrected target length value is expressed in mm.

[0053] Then, based on the corrected target length value, the basic shear trigger position is calculated to offset the length error caused by springback. In this embodiment, the yield strength of the 3mm thick Q235 strip steel is 235MPa. Substituting these values, we get a springback rate of approximately 0.126‰, and a springback compensation of approximately 0.19mm for a fixed length of 1500mm. If the steel is 2mm thick HC340LA high-strength steel with a yield strength of 340MPa, the springback rate is approximately 0.18‰, and the compensation amount increases accordingly.

[0054] In step S108, the pre-positioning signal of the material distribution is refined based on the stroke and speed.

[0055] To address the time error during the acceleration phase of the material distribution mechanism, the precise start-up time of the material distribution is calculated, and the following operations are performed: Based on the material distribution stroke parameters and the rated speed of the material distribution mechanism, calculate the reference stroke time for the material distribution mechanism to move from the initial position to the shearing position:

[0056] in, The base travel time is in seconds. The rated operating speed of the material distribution trolley is expressed in mm / s.

[0057] Overlay with pre-calibrated acceleration time compensation The unit is seconds (s), which gives the total startup lead time:

[0058] The acceleration period compensation is obtained by calibrating the starting acceleration of the trolley to ensure that the speed of the trolley reaches the rated value when it arrives at the receiving position, so as to receive the material smoothly. In this embodiment, the material distribution stroke is 500mm, the rated speed is 250mm / s, the reference duration is 2s, the acceleration period compensation is 0.2s, and the total advance time is 2.2s.

[0059] The total start-up time is calculated by working backward from the expected completion time of shearing to obtain the start time of the material distribution mechanism. Based on this time, a material distribution pre-positioning control signal is generated to ensure that the material distribution trolley arrives at the receiving position just as the shearing is completed.

[0060] In step S109, the tail material is graded based on the remaining length.

[0061] For the tail material at the end of the steel coil that is less than the standard length for a single coil, it is sorted and processed according to length, specifically by performing the following operations: The feed length is accumulated by the encoder, combined with the total length of the steel coil. (Scan and enter the code during material loading), unit: mm, real-time calculation of remaining strip length:

[0062] in, The remaining length of the strip is in mm. The total shearing length is in mm.

[0063] When the remaining length of the strip is less than the target length parameter of the billet, it is determined to be a tailing condition. In the tailing condition, the actual length of the tailing is compared with a preset grading length threshold: grading length threshold. , Generally, 0.5 is taken, which is half a fixed length.

[0064] If the actual length of the tail material is greater than or equal to the grading length threshold, a backup station distribution signal is generated, controlling the distribution mechanism to transport the tail material to the backup collection station for the production of short-sized steel rings or matching small parts. If the actual length of the tail material is less than the grading length threshold, a waste station distribution signal is generated, controlling the distribution mechanism to transport the tail material to the waste collection station. In this embodiment, the target length is 1500mm, the grading threshold is 750mm; when the remaining length is 820mm, it is transported to the backup station, and when the remaining length is 610mm, it is transported to the waste station.

[0065] To facilitate a complete understanding of the implementation process of this solution by those skilled in the art, the following uses the actual production of hot-rolled strip steel for automobile wheel rims as an example to illustrate the complete control process.

[0066] This embodiment uses Q235 hot-rolled strip steel to produce passenger car wheel rim blanks. The strip steel is 120mm wide, 3.0mm thick, and has a target length of 1500mm. The total length of the steel coil is 300m. The feed roller diameter is 200mm, and the encoder resolution is 1024 pulses / revolution. The shearing machine is a servo crank shearing mechanism with a shearing cycle of 0.8s. The material distribution trolley has a stroke of 500mm and a rated running speed of 250mm / s.

[0067] Before operation, the host computer sends out process parameters such as target length of 1500mm, shearing cycle of 0.8s, and material distribution stroke of 500mm. The controller calls the pre-calibrated mechanical distance compensation value of 120mm, as well as parameters such as impact displacement coefficient, springback rate, and impact threshold corresponding to 3mm thick Q235.

[0068] During normal production, the encoder collects the position of the feed roller in real time. When the cumulative feed length approaches the basic trigger position of 1380mm, the feed speed decelerates from 1m / s to a low shearing speed of 0.2m / s. At the moment the shear blade contacts the strip, the force sensor collects the time-domain waveform of the shearing force. The controller integrates and calculates the impact impulse as 12N·s. Substituting this into the calibration coefficient, an additional displacement compensation of 1.2mm is obtained, and the corrected shearing trigger position is 1378.8mm. When the strip reaches the corrected position, the controller triggers the shear blade action, and the strip continues to feed at 0.2m / s without stopping, completing the shearing. The material distribution trolley receives a start signal 2.2s before the shearing is completed, accelerates smoothly, and arrives at the receiving position just as the shearing is completed. After receiving the billet, it is moved horizontally and output to the roll forming station.

[0069] When local thickness differences occur in the strip and the peak shear force reaches 19kN, exceeding the preset impact threshold of 18kN, the controller automatically amplifies the compensation amount to 1.5mm according to the peak value ratio to counteract the strong impact and keep the fixed length deviation within ±0.5mm.

[0070] When slippage occurs due to wear on the feed roller surface, and the slippage rate reaches 6.2%, exceeding the 5% deviation threshold, the controller calculates a slippage correction coefficient of approximately 0.938, corrects the basic trigger position to approximately 1471mm, delays the trigger shearing, and compensates for the insufficient feed length caused by slippage.

[0071] When the remaining length of the steel coil is less than 1500mm, the system enters the tailings processing mode. If the remaining length is 820mm, which is greater than the grading threshold of 750mm, the sorting trolley will transport the tailings to the standby collection station; if the remaining length is 610mm, which is less than the grading threshold, it will be transported to the waste station.

[0072] Comparison and verification To verify the effectiveness of this solution, comparative tests were conducted on the same production line under three different operating conditions. Each test involved the continuous shearing of 100 blanks, and the length accuracy and production cycle time were statistically analyzed. The results are as follows: Comparison of fixed length accuracy

[0073] Production cycle time comparison

[0074] The comparative data shows that, under continuous feeding without stopping the machine, the fixed length accuracy of this solution is close to that of traditional stop-shearing, which is far superior to non-stop shearing without compensation. At the same time, the production cycle time is increased by about one-third, achieving the technical effect of maintaining accuracy and increasing cycle time.

[0075] Next, referring to the accompanying drawings, a fixed-length feed and material distribution system for processing steel ring blanks according to an embodiment of this application is described. Figure 2 This is a block diagram of a fixed-length feed and material distribution system for processing steel ring blanks according to an embodiment of this application.

[0076] like Figure 2 As shown, the fixed-length feed and material distribution system 10 for processing steel ring blanks includes: an acquisition module 100, a calculation module 200, and an output module 300.

[0077] Specifically, the acquisition module 100 is used to acquire preset target length parameters of the billet, shearing action cycle parameters, material distribution stroke parameters, as well as the real-time position signal of the feed roller, the shearing force feedback signal of the shearing station, and the position feedback signal of the material distribution mechanism; the calculation module 200 is used to calculate the basic shearing trigger position based on the real-time position signal and the target length parameters of the billet; calculate the shearing impact impulse and additional displacement compensation based on the shearing force feedback signal, and superimpose the additional displacement compensation onto the basic shearing trigger position to obtain the corrected shearing trigger position; generate a feed speed control curve based on the corrected shearing trigger position; and generate a material distribution pre-positioning control signal based on the corrected shearing trigger position and the shearing action cycle parameters; the calculation module has built-in calculation logic for slippage correction, springback compensation, peak impact correction, and tail material grading judgment, which can realize adaptive precision control under all working conditions; The output module 300 is used to send the feed speed control curve to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously and does not perform a complete stop. The output module 300 sends the material distribution pre-positioning control signal to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, and then translate and output the billet after receiving it.

[0078] It should be noted that the foregoing explanation of an embodiment of a fixed-length feed material distribution method for processing steel ring blanks also applies to a fixed-length feed material distribution system for processing steel ring blanks in this embodiment, and will not be repeated here.

[0079] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 301, the processor 302, and the computer program stored on the memory 301 and capable of running on the processor 302.

[0080] When the processor 302 executes the program, it implements a fixed-length feed and material distribution method for processing steel ring blanks provided in the above embodiments.

[0081] Furthermore, electronic devices also include: Communication interface 303 is used for communication between memory 301 and processor 302.

[0082] The memory 301 is used to store computer programs that can run on the processor 302.

[0083] The memory 301 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0084] If the memory 301, processor 302, and communication interface 303 are implemented independently, then the communication interface 303, memory 301, and processor 302 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 3 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0085] Optionally, in a specific implementation, if the memory 301, processor 302, and communication interface 303 are integrated on a single chip, then the memory 301, processor 302, and communication interface 303 can communicate with each other through an internal interface.

[0086] Processor 302 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of this application.

[0087] This application also provides a computer-readable storage medium storing a computer program or instructions thereon, which, when executed, implements the above-described method for fixed-length feed and material distribution in steel ring blank processing.

[0088] In the description of this specification, the terms "an embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0091] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0092] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0093] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for fixed-length feed material distribution in steel ring blank processing, characterized in that, Includes the following steps: Acquire preset target length parameters of billet, shearing cycle parameters, material distribution stroke parameters, as well as real-time position signals of feed rollers, shearing force feedback signals of shearing stations, and position feedback signals of material distribution mechanisms; Based on the real-time position signal and the target length parameter of the billet, the basic shear trigger position is calculated; based on the shear force feedback signal, the additional displacement compensation is calculated, and the additional displacement compensation is superimposed on the basic shear trigger position to obtain the corrected shear trigger position. A feed rate control curve is generated based on the corrected shear trigger position; a material distribution pre-positioning control signal is generated based on the corrected shear trigger position and the shear action cycle parameters. The feed speed control curve is sent to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously without complete shutdown. The material distribution pre-positioning control signal is sent to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, receive the billet, and then translate and output it.

2. The method according to claim 1, characterized in that, The calculation of the additional displacement compensation includes: Extract the waveform characteristics of the shear force feedback signal before and after the shear triggering moment; Based on the waveform characteristics and the current billet thickness parameters, calculate the longitudinal movement of the strip caused by shear impact; The longitudinal movement of the strip is used as the additional displacement compensation.

3. The method according to claim 1, characterized in that, Also includes: Extract the peak characteristics of the shear force feedback signal; When the peak characteristic exceeds the preset impact threshold, the instantaneous change in feed rate is calculated based on the peak characteristic and the current feed rate; The additional displacement compensation is corrected based on the instantaneous change in the feed rate.

4. The method according to claim 1, characterized in that, The calculation of the basic shear trigger position includes: The real-time rotational speed signal of the feed roller is obtained, and the difference between the actual feed speed of the strip and the set feed speed is calculated to obtain the feed speed deviation. When the feed rate deviation exceeds a preset deviation threshold, a slippage correction coefficient is calculated based on the feed rate deviation. The basic shear trigger position is corrected based on the slippage correction coefficient.

5. The method according to claim 1, characterized in that, Also includes: Obtain the thickness and material strength parameters of the current billet, and calculate the length springback compensation based on the preset material-thickness-springback mapping relationship; The length springback compensation is superimposed on the target fixed length parameter of the billet to obtain the corrected target fixed length value; The basic shear trigger position is calculated based on the corrected target length value.

6. The method according to claim 1, characterized in that, The generation of the pre-positioning control signal for material distribution includes: Based on the material distribution stroke parameters and the rated movement speed of the material distribution mechanism, calculate the reference stroke time of the material distribution mechanism from the initial position to the shearing position; By subtracting the reference stroke duration backward from the shearing completion time, the start time of the material distribution mechanism can be obtained; The material distribution pre-positioning control signal is generated according to the start time of the material distribution mechanism.

7. The method according to claim 1, characterized in that, Also includes: The remaining strip length signal is collected in real time. When the remaining strip length is less than the target fixed length parameter of the billet, it is determined to be a tailing condition. In the case of tailings, the actual length of the tailings is calculated and compared with the preset grading length threshold. If the actual length of the tail material is greater than or equal to the grading length threshold, a backup station material distribution signal is generated to control the material distribution mechanism to transport the tail material to the backup collection station. If the actual length of the tail material is less than the grading length threshold, a waste material distribution signal is generated to control the distribution mechanism to transport the tail material to the waste material collection station.

8. A fixed-length feed and distribution system for processing steel ring blanks, characterized in that, include: The acquisition module is used to acquire preset target length parameters of the billet, shearing cycle parameters, material distribution stroke parameters, as well as the real-time position signal of the feed roller, the shearing force feedback signal of the shearing station, and the position feedback signal of the material distribution mechanism. The calculation module is used to calculate the basic shear trigger position based on the real-time position signal and the target length parameter of the billet; calculate the additional displacement compensation based on the shear force feedback signal; and add the additional displacement compensation to the basic shear trigger position to obtain the corrected shear trigger position. A feed rate control curve is generated based on the corrected shear trigger position; a material distribution pre-positioning control signal is generated based on the corrected shear trigger position and the shear action cycle parameters. as well as The output module is used to send the feed speed control curve to the feed drive mechanism to control the strip to perform fixed-length feed and trigger the shearing action at the corrected shearing trigger position. During the shearing process, the feed continues to run continuously without complete shutdown. The output module sends the material distribution pre-positioning control signal to the material distribution mechanism to control the material distribution mechanism to reach the receiving position before the shearing is completed, receive the billet, and then move it horizontally for output.

9. An electronic device, characterized in that, include: The memory, the processor, and the computer program stored in the memory and executable on the processor, the processor executing the program to implement a fixed-length feed and material distribution method for processing steel ring blanks as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When a computer program or instruction is executed, it implements a fixed-length feed and material distribution method for processing steel ring blanks as described in any one of claims 1-7.

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