Height adjusting device and steel plate machining control system

Abstract

The invention discloses a height adjusting device and a steel plate machining control system, and relates to the technical field of steel plate machining, and the height adjusting device comprises a processor, a temperature sensor, at least two distance sensors and a communication interface; the distance sensor is used for detecting distance information between the cutting head and the steel plate; the temperature sensor is used for determining environment temperature change information in a first preset time period based on the environment temperature; the processor is used for generating a control instruction for starting a distance calibration program under the condition of determining that the environment temperature change information does not accord with a preset change range; and the distance sensor is further used for calibrating the distance information based on a pre-deployed distance calibration program to obtain a target distance so as to carry out machining operation on the steel plate based on the target distance. The device is used for solving a series of problems occurring when a steel plate is machined in the prior art, and the accuracy of detecting the distance between the cutting head and the steel plate is improved, so that the quality of a finished product is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel plate processing, and in particular to a height adjustment device and a steel plate processing control system. Background Art

[0002] The existing technology processes steel plates (such as perforating operations, cutting operations, etc.), and some of them use flame processing. In order to ensure the safety of flame processing, the distance between the flame and the steel plate is obtained by inductive sensing distance to ensure that the flame will not be too close to or too far away from the steel plate. However, the processing accuracy of this method is low, and the quality of the finished product obtained after processing is poor. In addition, the flame processing method has the problem of slag splashing during the processing process, and the inductive sensing distance method is easily affected by slag splashing. In addition, the sensitivity of the inductive sensing distance method is poor, resulting in poor quality of the finished product.

[0003] In addition, some steel plates are processed by laser processing, and the distance between the cutting machine and the steel plate is obtained by using capacitive sensing distance. However, the efficiency and cost of laser processing for thick steel plates are relatively high.

[0004] Furthermore, the prior art only detects the distance and uses the detected distance to control the cutting head to process the steel plate, which has a low accuracy rate and results in poor quality of the finished product. Summary of the invention

[0005] In response to the above-mentioned problems and technical needs, the applicant has proposed a height adjustment device and a steel plate processing control system to solve a series of problems that arise in the prior art when processing steel plates, thereby improving the accuracy of distance detection between the cutting head and the steel plate and improving the quality of the finished product.

[0006] The embodiment of the present application provides a height adjustment device, the device comprising: a processor, a temperature sensor, at least two distance sensors and a communication interface, the processor is respectively connected to the temperature sensor and the distance sensor for communication, the processor is connected to the automation control device for communication through the communication interface, and the automation device is used to perform processing operations on the steel plate; The distance sensor is used to detect the distance information between the cutting head and the steel plate, and send the distance information to the processor, wherein the distance sensor is located above the cutting head, and the installation position of the distance sensor is obtained based on the analysis of the historical processing data of the steel plate processing, and the installation position is not affected by the processing operation of the steel plate; The temperature sensor is used to obtain the ambient temperature of the current environment, determine the ambient temperature change information within a first preset time period based on the ambient temperature, and send the ambient temperature change information to the processor; The processor is configured to receive the distance information and the ambient temperature change information, and if it is determined that the ambient temperature change information does not conform to a preset change range, generate a control instruction for starting a distance calibration program, and send the control instruction to the distance sensor; The distance sensor is also used to calibrate the distance information based on the calibration instruction using a pre-deployed distance calibration program to obtain a target distance, and send the target distance to the processor to perform processing operations on the steel plate based on the target distance.

[0007] According to the height adjustment device of one embodiment of the present application, at least two of the distance sensors include: at least two millimeter wave radars, and the serial peripheral device interfaces of the at least two millimeter wave radars are connected in parallel; The processor is communicatively connected with each millimeter wave radar by switching the pins of the microcontroller unit through an analog switch; The processor is used to obtain the distance information of the millimeter-wave radar connected at the current moment, obtain the distance information detected by multiple millimeter-wave radars, and integrate the multiple distance information to obtain integrated distance information; The processor is further configured to calibrate the integrated distance information based on the calibration instruction and the distance calibration program to obtain the target distance.

[0008] According to the height adjustment device of one embodiment of the present application, the processor is further configured to determine that the corresponding millimeter-wave radar has failed when it is determined that the signal strength of the millimeter-wave radar has not changed within the second preset time period, and receive the distance information transmitted by the remaining millimeter-wave radar; The remaining millimeter-wave radars include: all the millimeter-wave radars except the millimeter-wave radar that has failed.

[0009] According to the height adjustment device of one embodiment of the present application, the processor obtains the distance information sent by each of the millimeter wave radars in a polling manner; The processor is further used to sort the distance information sent by the remaining millimeter-wave radars in ascending order to obtain a sorting result; based on the sorting result, obtain the distance information close to the previous polling pair.

[0010] According to a height adjustment device of one embodiment of the present application, the processor is further used to compensate the target distance based on the correspondence between pre-stored ambient temperature change information and distance compensation information, so as to perform processing operations on the steel plate based on the compensated target distance.

[0011] According to an embodiment of the height adjustment device of the present application, the device further includes: a power module, the power module being electrically connected to the processor, the temperature sensor, and the distance sensor respectively; The power supply module is used to respectively supply power to the processor, the temperature sensor and the distance sensor.

[0012] The embodiment of the present application further provides a steel plate processing control system, the system comprising: the system comprising: the height adjustment device and the automation control device as described in any of the above embodiments; The height adjustment device and the automation control device are communicatively connected via a communication interface of the height adjustment device; The height adjustment device is used to send the target distance to the automation control device; The automated control device is used to adjust the position of the cutting head based on the target distance, and perform processing operations on the steel plate based on the adjusted position.

[0013] According to an embodiment of the present invention, a steel plate processing control system and an automated control device are provided for performing steel plate perforation operations and flame cutting operations based on the target distance.

[0014] According to a steel plate processing control system of an embodiment of the present invention, the height adjustment device and the automation control equipment are connected by a cable communication having a distance less than a preset distance.

[0015] According to a steel plate processing control system according to an embodiment of the present invention, the height adjustment device and the automatic control equipment transmit data via differential communication.

[0016] The height adjustment device and steel plate processing control system provided in the embodiments of the present application include: a processor, a temperature sensor, at least two distance sensors and a communication interface, the processor is respectively connected to the temperature sensor and the distance sensor for communication, the processor is connected to the automation control equipment for communication through the communication interface, and the automation equipment is used to perform processing operations on the steel plate; the distance sensor is used to detect the distance information between the cutting head and the steel plate, and send the distance information to the processor, wherein the distance sensor is located above the cutting head, and the installation position of the distance sensor is obtained based on the analysis of the historical processing data of the steel plate processing, and the installation position is not affected by the processing operation of the steel plate. It can be seen that the height adjustment device of the present application is not affected by the slag splashing, which improves the service life of the height adjustment device and improves the accuracy of the distance information; the temperature The sensor is used to obtain the ambient temperature of the current environment, and determine the ambient temperature change information within a first preset time period based on the ambient temperature, and send the ambient temperature change information to the processor; the processor is used to receive the distance information and the ambient temperature change information, and when it is determined that the ambient temperature change information does not conform to the preset change range, generate a control instruction for starting the distance calibration program, and send the control instruction to the distance sensor; the distance sensor is also used to start a pre-deployed distance calibration program based on the calibration instruction to calibrate the distance information, obtain the target distance, and send the target distance to the processor, so that the automated equipment performs steel plate processing operations based on the target distance. It can be seen that the target distance of the present application also refers to environmental stability, ensures the accuracy of the distance, and provides an effective data basis for subsequent high-quality finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a schematic diagram of the structure of a height adjustment device provided in an embodiment of the present application; Figure 2 It is a structural schematic diagram of the steel plate processing control system provided in the embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The embodiment of the present application provides a height adjustment device, such as Figure 1 As shown, the device includes: a processor 101 , a temperature sensor 102 , at least two distance sensors 103 and a communication interface 104 .

[0021] The processor 101 is respectively connected to the temperature sensor 102 and the distance sensor 103 for communication. The processor 101 is connected to the automation control device for communication via the communication interface 104. The automation device is used to perform processing operations on the steel plate.

[0022] The distance sensor 103 is used to detect the distance information between the cutting head and the steel plate, and send the distance information to the processor 101.

[0023] The distance sensor 103 is located above the cutting head, and the installation position of the distance sensor 103 is obtained based on the analysis of historical processing data of steel plate processing, and the installation position is not affected by the processing operation of the steel plate.

[0024] The temperature sensor 102 is used to obtain the ambient temperature of the current environment, determine ambient temperature change information within a first preset time period based on the ambient temperature, and send the ambient temperature change information to the processor 101.

[0025] The processor 101 is used to receive distance information and ambient temperature change information, and when it is determined that the ambient temperature change information does not conform to a preset change range, generate a control instruction for starting a distance calibration program, and send the control instruction to the distance sensor 103 .

[0026] The distance sensor 103 is also used to calibrate the distance information based on the calibration instruction using a pre-deployed distance calibration program to obtain the target distance, and send the target distance to the processor 101 to perform steel plate processing operations based on the target distance.

[0027] Among them, Figure 1 Two distance sensors are used as an example for illustration, which is only for illustration and is not intended to limit the present application. Users can set 6, 8, 10, etc. according to their actual needs.

[0028] Among them, the communication interface includes an RS485 communication interface, which adopts a differential line transmission mode (differential communication) and an automatic control device communication connection. The height adjustment device of the present application is within a range of 20-50m from the automatic control system, and the RS485 communication interface has the advantages of strong anti-interference, long communication distance, and suitable for data transmission of large-format and high-power machine tools, ensuring the accurate and stable transmission of the data of the present application.

[0029] The height adjustment device provided in the embodiment of the present application includes: a processor, a temperature sensor, at least two distance sensors and a communication interface, the processor is respectively connected to the temperature sensor and the distance sensor for communication, the processor is connected to the automation control equipment for communication via the communication interface, and the automation equipment is used to perform processing operations on the steel plate; the distance sensor is used to detect the distance information between the cutting head and the steel plate, and send the distance information to the processor, wherein the distance sensor is located above the cutting head, and the installation position of the distance sensor is obtained based on the analysis of the historical processing data of the steel plate processing, and the installation position is not affected by the processing operation of the steel plate. It can be seen that the height adjustment device of the present application is not affected by the slag splashing, which improves the service life of the height adjustment device and improves the accuracy of the distance information; the temperature sensor is used to obtain The ambient temperature of the current environment, and based on the ambient temperature, determine the ambient temperature change information within a first preset time period, and send the ambient temperature change information to the processor; the processor is used to receive the distance information and the ambient temperature change information, and when it is determined that the ambient temperature change information does not conform to the preset change range, generate a control instruction for starting the distance calibration program, and send the control instruction to the distance sensor; the distance sensor is also used to start a pre-deployed distance calibration program based on the calibration instruction to calibrate the distance information, obtain the target distance, and send the target distance to the processor, so that the automated equipment performs steel plate processing operations based on the target distance. It can be seen that the target distance of the present application also refers to environmental stability, ensures the accuracy of the distance, and provides an effective data basis for subsequent high-quality finished products.

[0030] In a specific embodiment, the at least two distance sensors 103 include: at least two millimeter-wave radars, the serial peripheral device interfaces of the at least two millimeter-wave radars are connected in parallel, and the processor 101 is communicatively connected with each millimeter-wave radar by switching the pins of the microcontroller unit through an analog switch.

[0031] The processor 101 is used to obtain the distance information of the millimeter-wave radar currently connected, obtain the distance information detected by multiple millimeter-wave radars, and integrate the multiple distance information to obtain integrated distance information.

[0032] The processor 101 is further configured to calibrate the integrated distance information based on the calibration instruction and the distance calibration procedure to obtain the target distance.

[0033] Among them, a schematic illustration is given by taking 6 millimeter-wave radars as an example. The millimeter-wave radar uses the SPI interface for high-speed communication. The SPI data interfaces of the 6 millimeter-wave radars are connected in parallel, and different radars are switched with MCU pins through analog switches for data communication. The MCU uses a polling method, starting from the first millimeter-wave radar, switching to the data channel of the first millimeter-wave radar, and switching to the data channel of the second millimeter-wave radar after the communication is completed, and so on to complete the time-division multiplexing of the 6 millimeter-wave radars. A set of data interfaces is used to complete the data communication of multiple millimeter-wave radars. Of course, this is only an example and is not used to limit this application. Users can set 8, 10, etc. millimeter-wave radars according to their actual needs.

[0034] Among them, 6 millimeter-wave radars are evenly distributed in 360°, and each millimeter-wave radar has a sensing range of plus or minus 40°. The 6 sensors can detect height changes in various ranges of 360° (distance information and distance change information from the last time), and then filter the distance information, select the data closest to the last height for low-pass filtering, and finally output the current sensing height (distance information).

[0035] Specifically, each millimeter-wave radar can detect the signal strength in the high-frequency detection interval at a resolution of 0.484 at a distance of 0.2m to 1.2m, find the signal with the largest signal strength, and smooth the signal through a first-order low-pass filter. Then, the collected 6 radar data are integrated, and the sliding position filtering is performed, and then the preset calibration value is added to obtain the target distance (the ambient temperature change information meets the preset change range), and the target distance is stored in the chip Ram for communication reading.

[0036] Among them, the calibration value is obtained by pre-calibration and is a constant.

[0037] In a specific embodiment, the processor 101 is further used to determine that the corresponding millimeter-wave radar has failed when it is determined that the signal strength of the millimeter-wave radar has not changed within a second preset time period, and receive distance information transmitted by the remaining millimeter-wave radars.

[0038] Among them, the remaining millimeter-wave radars include: all millimeter-wave radars except the faulty millimeter-wave radar.

[0039] Specifically, during the steel plate processing, especially during the perforation process, it is impossible to absolutely avoid the damage of the millimeter wave radar caused by slag splashing, or the millimeter wave radar is damaged due to other reasons during use. If the induced signal does not change slightly within 1s, it is determined that the millimeter wave radar has failed. At this time, the MCU will exclude the damaged millimeter wave radar and use the data transmitted by the remaining millimeter wave radar for subsequent calculations and processing.

[0040] Among them, the six millimeter-wave radars are evenly distributed around the cutting head to serve as redundancy. If the millimeter-wave radar is damaged due to splashing slag, the damaged millimeter-wave radar will be automatically filtered out. If only one millimeter-wave radar is left in the extreme case, the data transmitted by the millimeter-wave radar will be calculated and processed.

[0041] In a specific embodiment, the processor 101 obtains the distance information sent by each millimeter wave radar in a polling manner. The processor 101 is also used to sort the distance information sent by the remaining millimeter wave radars in ascending order to obtain a sorting result; based on the sorting result, obtain the distance information close to the last polling pair.

[0042] In a specific embodiment, the processor 101 is further used to compensate the target distance based on the correspondence between the pre-stored ambient temperature change information and the distance compensation information, so as to perform the processing operation of the steel plate based on the compensated target distance.

[0043] The ambient temperature change information includes the ambient temperature change rate.

[0044] Specifically, the ambient temperature will also affect the determination of the target distance. The corresponding relationship between the ambient temperature change information and the distance compensation information is predetermined. Specifically, the compensation information of different temperature points is loaded through the ambient temperature change rate, and the specific compensation is the distance of the signal strength corresponding to the different temperature points.

[0045] For example, the environment stability is acquired every 100ms, and the rate of change of the ambient temperature within 10 minutes is counted. If the rate of change of the ambient temperature exceeds 5 degrees / minute, the distance calibration program is started.

[0046] In a specific embodiment, the device further includes: a power module, which is electrically connected to the processor 101, the temperature sensor 102 and the distance sensor 103. The power module is used to supply power to the processor 101, the temperature sensor 102 and the distance sensor 103 respectively.

[0047] Specifically, the power module is used to convert the external input 24V DC voltage into the corresponding working voltage of each component (processor 101, temperature sensor 102 and distance sensor 103), such as 5V, 3.3V, 1.8V, etc.

[0048] The present application also provides a steel plate processing control system, such as Figure 2 As shown, the system includes: a height adjustment device 201 and an automatic control device 202 described in any of the above embodiments; the height adjustment device and the automatic control device are communicatively connected via a communication interface of the height adjustment device.

[0049] The height adjustment device 201 is used to send the target distance to the automatic control device 202; the automatic control device 202 is used to adjust the position of the cutting head based on the target distance, and perform the processing operation of the steel plate based on the adjusted position.

[0050] The automation control equipment 202 includes a numerically controlled machine tool.

[0051] In a specific embodiment, the automated control device 202 is used to perform steel plate perforation operations and flame cutting operations based on the target distance.

[0052] In a specific embodiment, the height adjustment device 201 and the automation control device 202 are connected in communication via a cable having a distance less than a preset distance.

[0053] In a specific embodiment, the height adjustment device 201 and the automatic control device 202 transmit data via differential communication, which can ensure stable transmission within 100m.

[0054] Specifically, the target distance can also be read from the height adjustment device 201 by the automated control device 202, and the processing operation of the steel plate can be performed based on the target distance.

[0055] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0056] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0057] Finally, it should be noted that the above is only the preferred implementation of the present application, and the present application is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present application should be considered to be included in the scope of protection of the present application.

Claims

1. A height adjustment device, characterized in that: The device comprises: a processor, a temperature sensor, at least two distance sensors and a communication interface, wherein the processor is respectively connected to the temperature sensor and the distance sensor for communication, and the processor is connected to the automation control device for communication through the communication interface, and the automation device is used to perform processing operations on the steel plate; The distance sensor is used to detect the distance information between the cutting head and the steel plate, and send the distance information to the processor, wherein the distance sensor is located above the cutting head, and the installation position of the distance sensor is obtained based on the analysis of the historical processing data of the steel plate processing, and the installation position is not affected by the processing operation of the steel plate; The temperature sensor is used to obtain the ambient temperature of the current environment, determine the ambient temperature change information within a first preset time period based on the ambient temperature, and send the ambient temperature change information to the processor; The processor is configured to receive the distance information and the ambient temperature change information, and if it is determined that the ambient temperature change information does not conform to a preset change range, generate a control instruction for starting a distance calibration program, and send the control instruction to the distance sensor; The distance sensor is also used to calibrate the distance information based on the calibration instruction using a pre-deployed distance calibration program to obtain a target distance, and send the target distance to the processor to perform processing operations on the steel plate based on the target distance.

2. The height adjustment device according to claim 1, characterized in that: The at least two distance sensors include: at least two millimeter wave radars, and the serial peripheral device interfaces of the at least two millimeter wave radars are connected in parallel; The processor is communicatively connected with each millimeter wave radar by switching the pins of the microcontroller unit through an analog switch; The processor is used to obtain the distance information of the millimeter-wave radar connected at the current moment, obtain the distance information detected by multiple millimeter-wave radars, and integrate the multiple distance information to obtain integrated distance information; The processor is further configured to calibrate the integrated distance information based on the calibration instruction and the distance calibration program to obtain the target distance.

3. The height adjustment device according to claim 2, characterized in that: The processor is further configured to determine that the corresponding millimeter-wave radar fails when it is determined that the signal strength of the millimeter-wave radar does not change within a second preset time period, and receive distance information transmitted by the remaining millimeter-wave radars; The remaining millimeter-wave radars include: all the millimeter-wave radars except the millimeter-wave radar that has failed.

4. The height adjustment device according to claim 3, characterized in that: The processor obtains the distance information sent by each of the millimeter-wave radars in a polling manner; The processor is further used to sort the distance information sent by the remaining millimeter-wave radars in ascending order to obtain a sorting result; based on the sorting result, obtain the distance information close to the previous polling pair.

5. The height adjustment device according to any one of claims 1 to 4, characterized in that: The processor is further used to compensate the target distance based on the correspondence between the pre-stored ambient temperature change information and the distance compensation information, so as to perform the processing operation of the steel plate based on the compensated target distance.

6. The height adjustment device according to any one of claims 1 to 4, characterized in that: The device further comprises: a power module, the power module being electrically connected to the processor, the temperature sensor and the distance sensor respectively; The power supply module is used to respectively supply power to the processor, the temperature sensor and the distance sensor.

7. A steel plate processing control system, characterized in that: The system comprises: the height adjustment device and the automatic control device according to any one of claims 1 to 6; The height adjustment device and the automation control device are communicatively connected via a communication interface of the height adjustment device; The height adjustment device is used to send the target distance to the automation control device; The automated control device is used to adjust the position of the cutting head based on the target distance, and perform processing operations on the steel plate based on the adjusted position.

8. The steel plate processing control system according to claim 7, characterized in that: The automated control device is used for performing steel plate perforation operation and flame cutting operation based on the target distance.

9. The steel plate processing control system according to claim 8, characterized in that: The height adjustment device and the automation control equipment are connected in communication via a cable having a distance less than a preset distance.

10. The steel plate processing control system according to claim 9, characterized in that: The height adjustment device and the automatic control device transmit data via differential communication.

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