Automatic length measurement and operation control system for object processing

Abstract

The invention relates to the technical field of length measurement and operation control, and provides an automatic length measurement and operation control system for object processing, which acquires length measurement data of an object through a data acquisition module, executes a length calibration mechanism, and ensures that the operation can be accurately performed according to the actual size of the object during each processing; the operation control module controls an operation path and an operation position of target equipment through an operation adjustment strategy according to length measurement data of an object, the object is machined, the machining process of the object is finer and more accurate by controlling the operation path and the operation position, and errors and waste are reduced; and the feedback adjustment module monitors whether the operation position of the target equipment has an error in the object processing process so as to adjust the initial operation path.

Description

Technical Field

[0001] This application relates to the technical field of length measurement and operation control, and particularly to an automatic length measurement and operation control system for object processing. Background Art

[0002] With the increasing requirements for precision and efficiency in the object processing industry, automated length measurement and operation control systems have significantly improved the precision of object processing and reduced the errors in manual measurement; the operation control system can perform object measurement and operation control quickly and continuously, greatly improving production efficiency, especially suitable for mass production. However, most of them do not solve the problem of how to control the operation path and operation position of the target device by obtaining the length measurement data of the object and adjust the operation path according to the deviation of the operation position. Summary of the Invention

[0003] In view of the deficiencies of the prior art, this application provides an automatic length measurement and operation control system for object processing, which includes: a data acquisition module, an operation control module, and a feedback adjustment module;

[0004] The data acquisition module is used to obtain the length measurement data of the object, perform length calibration by configuring a calibration block, and determine whether the length calibration is successful;

[0005] The operation control module is used to control the operation path and operation position of the target device according to the length measurement data of the object, process the object, and determine whether to stop the operation according to the remaining length of the object;

[0006] The feedback adjustment module is used to monitor whether there is an error in the operation position of the target device during the object processing process, and adjust the initial operation path according to the abscissa and ordinate of the operation position.

[0007] As an optional implementation manner, the mechanism of the length calibration includes:

[0008] Select a reference measurement point, and obtain the reference measurement value of the object based on the reference measurement point;

[0009] Perform length measurements at different positions of the object, respectively obtain the length measurement values of the object at different positions, and take the average of the length measurement values of the object at different positions to obtain the length measurement data of the object;

[0010] Subtract the reference measurement value from the length measurement data to obtain a measurement difference;

[0011] Configure a difference threshold, and compare the measurement difference with the difference threshold to determine whether calibration needs to be triggered;

[0012] Configure a calibration block, and if calibration needs to be triggered, perform length calibration according to the calibration block.

[0013] As an alternative implementation, the logic for length calibration based on the calibration block includes:

[0014] Select a standard workpiece with fixed calibration as the calibration block, measure the calibration block at the reference measurement point, and record the length measurement value of the calibration block;

[0015] Subtract the length measurement value of the calibration block from the reference measurement value of the object to obtain a calibration difference;

[0016] Add the calibration difference to the reference measurement value of the object to obtain a new reference measurement value of the object.

[0017] As an alternative implementation, the logic for determining whether the length calibration is successful includes:

[0018] Re-measure the length at different positions of the object and calculate new length measurement data of the object;

[0019] Subtract the new reference measurement value from the new length measurement data to obtain a new measurement difference;

[0020] If the new measurement difference is less than or equal to the difference threshold, it indicates that the length calibration is successful;

[0021] If the new measurement difference is greater than the difference threshold, it indicates that the length calibration is unsuccessful and the length calibration needs to be performed again.

[0022] As an alternative implementation, the operation adjustment strategy includes:

[0023] Receive the length measurement data of the object after length calibration, configure the initial operation path, target length, and equipment component width, and add the target length to the equipment component width to obtain an operation value;

[0024] Obtain the thickness value of the object, calculate the operation position, perform an operation on the object according to the initial operation path, and obtain the remaining length of the object after the operation;

[0025] If the remaining length of the object is greater than the operation value, continue to perform an operation on the object according to the initial operation path and update the operation position;

[0026] Configure a proximity threshold. If the remaining length of the object is less than or equal to the sum of the operation value and the proximity threshold, reduce the feed speed of the equipment component, perform an operation on the object according to the initial operation path, and update the operation position;

[0027] If the remaining length of the object is less than or equal to the operation value, stop the operation.

[0028] As an alternative implementation, configure a standard operation position, and obtain a position difference by subtracting the operation position of the target device from the standard operation position;

[0029] Configure an operation error threshold, and compare the position difference with the operation error threshold to determine whether there is an error in the operation position of the target device. If the position difference is less than or equal to the operation error threshold, there is no error in the operation position of the target device;

[0030] If the position difference is greater than the operation error threshold, there is an error in the operation position of the target device.

[0031] As an alternative implementation, when there is an error in the operation position of the target device, adjust the initial operation path. The adjustment logic of the initial operation path includes:

[0032] Obtain the abscissa of the operation position, and obtain a length error of the operation position by subtracting the value of the abscissa of the operation position from the target length;

[0033] Determine the path adjustment amount of the target device in the length direction according to the length error of the operation position and the remaining length of the object.

[0034] As an alternative implementation, the adjustment logic of the initial operation path further includes:

[0035] Obtain the ordinate of the operation position, configure a standard thickness, and obtain a thickness error of the operation position by subtracting the value of the ordinate of the operation position from the standard thickness;

[0036] Determine the path adjustment amount of the target device in the thickness direction according to the thickness error of the operation position;

[0037] Comprehensively determine the path adjustment amount and path adjustment direction of the target device according to the path adjustment amount of the target device in the length direction and the path adjustment amount of the target device in the thickness direction.

[0038] As an alternative implementation, the logic of the path adjustment amount of the target device includes:

[0039] Square the obtained path adjustment amounts of the target device in the length direction and the thickness direction respectively to obtain the squared values of the path adjustment amounts of the target device in the length direction and the thickness direction respectively;

[0040] Add the squared values of the path adjustment amounts of the target device in the length direction and the thickness direction to obtain the value of the sum of squares;

[0041] Perform a square root operation on the value of the sum of squares to obtain the path adjustment amount of the target device.

[0042] Compared with the prior art, the beneficial effects of the present application are as follows: The length measurement data of the object is obtained through the data acquisition module, and length calibration is performed to ensure that each processing can be accurately operated according to the actual size of the object; The operation control module controls the operation path and operation position of the target device through the operation adjustment strategy according to the length measurement data of the object, and processes the object. By controlling the operation path and operation position, the processing process of the object is made more refined and accurate, reducing errors and waste; The feedback adjustment module monitors whether there is an error in the operation position of the target device during the object processing process to adjust the initial operation path, can detect possible errors during the processing process, and automatically adjusts the operation adjustment strategy, improving the adaptive ability and intelligent level of the control system, improving the processing efficiency, avoiding errors in manual operations, thereby reducing the production cycle and increasing the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0044] Figure 1 is the system structure diagram of the automatic length measurement and operation control system for object processing provided by the embodiment of the present application;

[0045] Figure 2 is the flow chart of the length calibration mechanism of the automatic length measurement and operation control system for object processing provided by the embodiment of the present application;

[0046] Figure 3 is the flow chart of the operation adjustment strategy of the automatic length measurement and operation control system for object processing provided by the embodiment of the present application;

[0047] Figure 4 is the initial sawing path adjustment logic flow chart of the automatic length measurement and operation control system for object processing provided by the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments.

[0049] Embodiment

[0050] As Figure 1As shown in the figure, the system structure diagram of the automatic length measurement and operation control system for object processing provided by the embodiment of the present application is shown. The system includes a data acquisition module, an operation control module, a feedback adjustment module, and a safety protection module.

[0051] In this embodiment, the object represents a wooden product, the operation path represents the sawing path, the operation position represents the sawing position, the target device represents a miter saw, the width of the device component represents the width of the saw blade, and the device component represents the saw blade.

[0052] The data acquisition module is used to obtain the length measurement data of the wooden product, perform length calibration through a configured calibration block, and determine whether the length calibration is successful.

[0053] During the processing of wooden products, accurate length measurement is the key to ensuring the sawing quality. However, due to the accuracy drift of the measurement device (such as a laser distance sensor) itself, the influence of environmental factors (such as temperature, humidity, and dust), and the irregular characteristics of the wooden product itself, the length measurement data of the wooden product obtained is prone to deviation; the length calibration mechanism is to eliminate the errors caused by these potential factors, ensure the accuracy of the length measurement data, and thus provide a reliable basis for subsequent precise sawing control.

[0054] As Figure 2 shown, the mechanism of length calibration includes:

[0055] Select a reference measurement point, and obtain the reference measurement value of the wooden product based on the reference measurement point;

[0056] Perform length measurements at different positions of the wooden product, respectively obtain the length measurement values of the wooden product at different positions, and take the average of the length measurement values of the wooden product at different positions to obtain the length measurement data of the wooden product;

[0057] Subtract the reference measurement value from the length measurement data to obtain a measurement difference;

[0058] Configure a difference threshold, and compare the measurement difference with the difference threshold to determine whether calibration needs to be triggered;

[0059] Configure a calibration block. If calibration needs to be triggered, perform length calibration according to the calibration block.

[0060] In practical applications, the surface of the wooden product is not completely regular and flat, and the measurement results at different positions will vary greatly due to factors such as the texture, knots, and curvature of the wooden product. Selecting a reference measurement point is to determine a relatively stable position on the wooden product that can represent the main length characteristics of the wooden product, provide a unified reference for subsequent accurate measurement of length data, and reduce errors caused by the randomness of the measurement position.

[0061] Usually, the starting position at one end of the wood product is selected as the reference measurement point. This reference measurement point should try to avoid obvious defects, such as large knots, cracks or severe bending areas; a laser ranging sensor is used to accurately determine the position of the reference measurement point in the measurement coordinate system, and the length value fed back by the laser ranging sensor at this time is recorded as the reference measurement value of the wood product; a stable starting standard is established for the entire length measurement calibration process, and subsequent comparison and calibration of length measurement data are carried out around this reference measurement value, which improves the consistency and comparability of measurement.

[0062] The natural properties of wood products determine that the physical characteristics of each position are different. The length measurement at a single position is difficult to reflect the actual length of the wood product. By measuring the length at multiple different positions, the differences in different parts of the wood product can be comprehensively considered. For example, the density of wood products near the center is higher, while the two ends will produce slight shrinkage due to different degrees of dryness, and other factors will affect the length measurement of the wood product, thereby obtaining an average value that is closer to the actual length of the wood product.

[0063] At least 5-10 measuring points are evenly selected along the length of the wood product. The specific number needs to be determined based on the length of the wood product and the processing accuracy requirements. A laser ranging sensor is used to measure the length of these measuring points respectively, and the length measurement value obtained at each measuring point is recorded. The length measurement values ​​measured at different positions are summed and then divided by the total number of measuring points to obtain the average value, which is the length measurement data of the wood product. This reduces the impact of the unevenness of the wood product itself on the measurement result, making the acquired length measurement data more representative and better reflecting the actual length of the wood product, providing reliable data support for subsequent precise sawing control.

[0064] The difference threshold is a pre-set allowable error range based on the processing accuracy requirements and the normal accuracy range of the laser ranging sensor. If the measured difference is greater than the difference threshold, it means that there is a problem with the measurement result and calibration is required; otherwise, the current length measurement data is considered reliable and can be directly used for sawing control. It can quickly determine whether it is necessary to start the calibration process, improve processing efficiency, avoid wasting time due to unnecessary calibration, and ensure that subsequent processing is only carried out when the accuracy of the length measurement data meets the standards, thereby ensuring the processing quality of wood products.

[0065] The logic for length calibration based on the calibration block includes:

[0066] Select a fixed and calibrated standard workpiece as a calibration block, measure the calibration block at the reference measurement point, and record the length measurement value of the calibration block;

[0067] Subtract the length measurement of the calibration block from the reference measurement of the wood product to obtain a calibration difference;

[0068] Add the calibration difference to the reference measurement value of the wood product to obtain a new reference measurement value for the wood product.

[0069] The calibration block has a known and precise length, and its physical properties are stable, not affected by the complex factors of the wood product itself. By comparing and measuring with the calibration block, the calibration deviation of the length measurement value can be found, and then the length measurement data can be calibrated.

[0070] Select a standard workpiece with fixed calibration as the calibration block. The calibration block is usually made of metal, and its length has been accurately calibrated by a professional metrology institution. For example, the calibrated length is 1000.00 mm (accurate to 0.01 mm); according to the accurate measurement results of the calibration block, the originally deviated reference measurement value is adjusted to make the reference measurement value more accurate, providing a more reliable starting point for subsequent re-measurement and calibration, and ensuring that the length measurement data returns to accuracy.

[0071] The logic for judging whether the length calibration is successful includes:

[0072] Re-measure the length at different positions of the wood product and calculate the new length measurement data of the wood product;

[0073] Subtract the new reference measurement value from the new length measurement data to obtain a new measurement difference;

[0074] If the new measurement difference is less than or equal to the difference threshold, it means that the length calibration is successful;

[0075] If the new measurement difference is greater than the difference threshold, it means that the length calibration is not successful and the length calibration needs to be performed again.

[0076] After correcting the reference measurement value, it is necessary to measure the wood product again to verify whether the calibration is successful, ensure that the finally obtained length measurement data meets the processing accuracy requirements, and avoid quality problems in subsequent processing due to incomplete calibration; through repeated measurement and verification, ensure that the length measurement is always in a high-precision and stable state, provide reliable length measurement data guarantee for wood product processing, and improve the processing accuracy and quality stability of wood products.

[0077] The operation control module is used to control the sawing path and sawing position of the miter saw through an operation adjustment strategy according to the length measurement data of the wood product, process the wood product, and judge whether to stop sawing according to the remaining length of the wood product.

[0078] During the processing of wood products, in order to obtain finished products that meet the specifications, it is necessary to precisely control the sawing process based on the length measurement data of the wood products; the core principle of the operation adjustment strategy is to accurately control the sawing path and sawing position by precisely measuring the length of the wood products and dynamically adjusting the sawing parameters, ensuring that each sawing can meet the requirements of the target length, while taking into account various actual influencing factors during the sawing process, such as saw blade width, wood product thickness, and vibration, to improve the sawing accuracy and processing quality.

[0079] As Figure 3 shown, the operation adjustment strategy specifically includes:

[0080] Receive the length measurement data of the wood product after length calibration, and configure the initial sawing path, target length, and saw blade width. Add the target length and the saw blade width to obtain the sawing value;

[0081] Obtain the thickness value of the wood product, calculate the sawing position, saw the wood product according to the initial sawing path, and obtain the remaining length of the wood product after sawing;

[0082] If the remaining length of the wood product is greater than the sawing value, continue to saw the wood product according to the initial sawing path and update the sawing position;

[0083] Configure the proximity threshold. If the remaining length of the wood product is less than or equal to the sum of the sawing value and the proximity threshold, reduce the feed speed of the saw blade, saw the wood product according to the initial sawing path, and update the sawing position;

[0084] If the remaining length of the wood product is less than or equal to the sawing value, stop sawing.

[0085] Through the length measurement data of the calibrated wood product in the data acquisition module, only by obtaining the length measurement data of the wood product can the sawing position and sawing path be determined according to the target length, providing accurate starting data for subsequent sawing control, ensuring that products that meet the requirements can be processed according to the actual length of the wood product.

[0086] Because it is a miter saw, the initial sawing path is defined as the sawing angle of the miter saw, and the target length is the length that the finished wood product after processing is expected to reach. The saw blade width will directly affect the calculation of the remaining length of the wood product after sawing. Reasonably configuring these parameters is the key to achieving precise sawing. For example, according to the processing requirements, set the initial sawing path to a 30° miter cut, the target length to 0.5 meters, and the saw blade width to 0.003 meters, thereby determining the sawing value to be 0.503 meters, providing a clear direction and standard for sawing control, ensuring that the sawing process can proceed according to the predetermined goal.

[0087] The thickness of the wooden product affects the calculation of the sawing position. Since sawing is carried out in three-dimensional space, the thickness value of the wooden product is one of the important parameters for determining the sawing position coordinates. The thickness value of the wooden product obtained by the caliper is 0.05 meters, which improves the parameters required for the sawing position calculation and makes the sawing position calculation more accurate.

[0088] According to the calculated sawing position and the initial sawing path for sawing control, the wooden product can be processed into a product close to the target length, and at the same time, the remaining length of the wooden product after sawing can be obtained to determine whether it is necessary to continue sawing or adjust the sawing parameters.

[0089] The calculation formula for the sawing position is as follows:

[0090] ;

[0091] In the formula, represents the coordinate information of the sawing position, represents the target length, represents the saw blade width, represents the compensation coefficient, represents the thickness value of the wooden product, represents the vibration compensation value.

[0092] It should be noted that: the coordinate information of the sawing position is a two-dimensional coordinate value, representing the position of the sawing position on the plane, including the horizontal position (x-axis coordinate) and the vertical position (y-axis coordinate); the saw blade width is usually a positive number because the saw blade width affects the cutting accuracy, and the size of the saw blade width depends on the type of saw blade used; the compensation coefficient is used to compensate for the small bending deformation of the wooden product, obtained by analyzing the processing data of the same type of wooden products in the past, and the value range is between 0 and 0.01, depending on the bending degree of the wooden product; the thickness value of the wooden product is usually a positive number, and the value range depends on the actual size of the wooden product; the vibration compensation value is usually a small positive or negative number, depending on the vibration size generated during the sawing process.

[0093] The calculation formula for the sawing position comprehensively considers factors such as the target length, saw blade width, compensation coefficient, thickness value of the wooden product, and vibration compensation, and can determine the accurate sawing position on the basis of considering various actual influencing factors, providing an accurate execution position for subsequent sawing control.

[0094] When the remaining length of the wooden product is greater than the sawing value, it means that the wooden product can still be sawed to the target length and can continue to be sawed. By continuing to saw according to the initial sawing path and updating the sawing position, the wooden product can be gradually sawed into multiple products that meet the target length.

[0095] When the remaining length of the wood product is close to the sawing value, in order to avoid excessive sawing, it is necessary to configure a proximity threshold to ensure that the remaining length of the wood product can still be processed into a product with the target length, and reduce the feed speed of the saw blade to more precisely control the sawing process, ensuring that the final remaining length can accurately reach the target length without damaging the wood product itself and avoiding the remaining length being less than the target length due to too fast sawing speed.

[0096] When the remaining length of the wood product is less than or equal to the sawing value, it means that the remaining length of the wood product cannot be sawn into a product with the target length anymore, and the sawing operation should be stopped at this time.

[0097] The feedback adjustment module is used to monitor whether there is an error in the sawing position of the miter saw during the processing of the wood product to adjust the initial sawing path.

[0098] Configure the standard sawing position, and subtract the sawing position of the miter saw from the standard sawing position to obtain the position difference;

[0099] Configure the sawing error threshold, and compare the position difference with the sawing error threshold to determine whether there is an error in the sawing position of the miter saw. If the position difference is less than or equal to the sawing error threshold, there is no error in the sawing position of the miter saw;

[0100] If the position difference is greater than the sawing error threshold, there is an error in the sawing position of the miter saw.

[0101] The standard sawing position is the benchmark for the entire sawing control. Before processing the wood product, according to the processing requirements (such as the target length, sawing path, sawing starting point, etc.), determine the position where the miter saw should be in the ideal state. The standard sawing position is the reference basis for subsequent judgment of whether the sawing position is accurate. Without the standard sawing position, it is impossible to quantify the position deviation during the sawing process and ensure the consistency of the processing dimension accuracy.

[0102] Calculating the position difference is a key step in judging whether the sawing position is accurate. Only by quantifying the difference between the actual sawing position and the standard sawing position can it be determined whether there is a deviation in the sawing control and the magnitude of the deviation, and then decide whether corrective measures need to be taken. The obtained position difference can be positive (indicating that the actual sawing position is ahead of the standard sawing position in a certain direction) or negative (indicating that the actual sawing position is behind the standard sawing position in a certain direction).

[0103] The sawing error threshold is an acceptable error range determined according to the processing precision requirements of wood products. For example, for the sawing of wood products in general furniture manufacturing, the sawing error threshold can be set to ±0.5 mm in the length direction, while for the processing of high-precision wood handicrafts, the sawing error threshold can be set to ±0.1 mm. By comparing the position difference with the sawing error threshold, it is possible to scientifically judge whether the sawing position is within the allowable error range, avoiding frequent adjustment of the miter saw due to minor deviations or unqualified product quality due to large deviations; realizing the quantitative judgment of the sawing position error, being able to reasonably control the adjustment frequency of sawing control on the premise of ensuring product quality, improving production efficiency, and helping to take targeted corrective measures in a timely manner by accurately judging the error situation of the sawing position, ensuring the stability of sawing accuracy.

[0104] When there is an error in the sawing position of the miter saw, adjust the initial sawing path. The adjustment logic of the initial sawing path is as Figure 4 shown, specifically including:

[0105] Obtain the abscissa of the sawing position, and subtract the value of the abscissa of the sawing position from the target length to obtain the length error of the sawing position;

[0106] Determine the path adjustment amount of the miter saw in the length direction according to the length error of the sawing position and the remaining length of the wood product.

[0107] To determine the path adjustment amount of the miter saw in the length direction, first, it is necessary to know the error of the sawing position in the length direction. This length error is a key indicator for judging whether the sawing deviates from the target length. Only by accurately obtaining this length error can the subsequent path adjustment amount be calculated; the length error of the sawing position can be positive (indicating that the sawing position is greater than the target length) or negative (indicating that the sawing position has not reached the target length).

[0108] The function expression of the path adjustment amount of the miter saw in the length direction is as follows:

[0109] ;

[0110] In the formula, represents the path adjustment amount of the miter saw in the length direction, represents the long-diameter adjustment coefficient, represents the target length, represents the saw blade width, represents the compensation coefficient, represents the length measurement data of the wood product.

[0111] It should be noted that: the long-diameter adjustment coefficient It is a correction amount used to adjust the path deviation in the length direction according to the coefficients related to the sawing process, usually a constant, depending on the requirements of processing accuracy.

[0112] The remaining length is considered because during the sawing process, as sawing progresses, the remaining length of the wooden product continuously changes, and the required path adjustment amounts are different for different remaining lengths of wooden products, which can make the path adjustment more accurate; through precise mathematical calculations, a reasonable path adjustment amount in the length direction is obtained to ensure that after adjusting the sawing path, the sawing position is closer to the target length in the length direction.

[0113] Obtain the ordinate of the sawing position, configure the standard thickness, and subtract the value of the ordinate of the sawing position from the standard thickness to obtain the thickness error of the sawing position;

[0114] Determine the path adjustment amount of the miter saw in the thickness direction according to the thickness error of the sawing position.

[0115] Similar to the length direction, in the thickness direction, it is also necessary to first determine the error of the sawing position for targeted path adjustment. The thickness error will affect the thickness accuracy of the wooden product after sawing. Accurately obtaining this thickness error is a prerequisite for ensuring that the product thickness meets the requirements, helping to accurately judge the deviation degree of the sawing position in the thickness direction, and the standard thickness is the product thickness determined according to the processing technology.

[0116] The functional expression of the path adjustment amount of the miter saw in the thickness direction is as follows:

[0117] ;

[0118] In the formula, represents the path adjustment amount of the miter saw in the thickness direction, represents the thick-diameter adjustment coefficient, represents the thickness value of the wooden product, represents the vibration compensation value, represents the standard thickness.

[0119] It should be noted that: the thick-diameter adjustment coefficient is used to correct the deviation in the thickness direction, similar to the long-diameter adjustment coefficient .

[0120] The thickness error of the sawing position determines the path adjustment amount required by the miter saw in the thickness direction. Different thickness errors require different adjustment amplitudes, and through precise calculations, the thickness of the wooden product after sawing can be made more in line with the requirements.

[0121] Comprehensively determine the path adjustment amount and path adjustment direction of the miter saw according to the path adjustment amount of the miter saw in the length direction and the path adjustment amount of the miter saw in the thickness direction.

[0122] The logic for the path adjustment amount of the miter saw includes:

[0123] Square the obtained path adjustment amounts of the miter saw in the length direction and the thickness direction respectively to obtain the squared values of the path adjustment amounts of the miter saw in the length direction and the thickness direction;

[0124] Add the squared values of the path adjustment amounts of the miter saw in the length direction and the thickness direction to obtain the value of the sum of squares;

[0125] Perform a square root operation on the value of the sum of squares to obtain the path adjustment amount of the miter saw.

[0126] The functional expression for the path adjustment amount of the miter saw is as follows:

[0127] ;

[0128] In the formula, represents the path adjustment amount of the miter saw, represents the path adjustment amount of the miter saw in the length direction, represents the path adjustment amount of the miter saw in the thickness direction.

[0129] The calculation formula for the path adjustment direction of the miter saw is:

[0130] ;

[0131] In the formula, represents the angle between the path adjustment direction of the miter saw and the length direction of the miter saw.

[0132] The errors in the sawing position in the length and thickness directions are independent of each other but also affect each other. Only by comprehensively considering the path adjustment amounts in these two directions can the final path adjustment amount and adjustment direction of the miter saw be accurately determined, ensuring that the sawing path is correctly adjusted as a whole, improving the sawing accuracy, and ensuring that the dimensions of the processed wooden products meet the requirements.

[0133] The safety protection module is used to configure multiple safety protection mechanisms to ensure the safety of the wooden product processing process.

[0134] The multiple safety protection mechanisms include mechanical safety protection, personnel safety protection, and processing safety protection.

[0135] Mechanical safety protection is the monitoring of the saw blade status. The status of the saw blade is monitored through temperature sensors and vibration sensors. When the temperature of the saw blade is greater than the preset threshold (such as 100 °C, depending on the material of the saw blade) or the vibration amplitude of the saw blade is greater than the safety range (a reasonable safety range is determined through the debugging of the miter saw), the miter saw should pause operation. This is to prevent the saw blade from being damaged due to overheating or excessive vibration, avoid injuries caused by the saw blade breaking and splashing, and at the same time help extend the service life of the saw blade. After the status of the saw blade returns to normal, the miter saw can be restarted.

[0136] Personnel safety protection includes personnel approach detection. A laser sensing area is set around the saw blade. Once it is detected that a person enters the dangerous area (such as within a range less than 1 cm from the miter saw), when the laser sensing area senses the approach of a person, the miter saw should automatically stop the sawing operation and emit an alarm sound to avoid injuries caused by a person accidentally touching the dangerous area when the miter saw is operating. After the person leaves the dangerous area, the miter saw can only be restarted after manual confirmation.

[0137] Processing safety protection includes the monitoring of sawing parameters to prevent poor sawing quality, saw blade damage or other safety problems caused by improper setting of sawing parameters, and ensure the stability and safety of the processing process. The sawing parameters such as sawing speed and sawing feed rate are monitored in real time. When the sawing speed or the saw blade feed rate is greater than the preset safe operation range (determined according to the material of the wood product and the performance of the saw blade), the miter saw automatically adjusts the sawing parameters to within the safe range. If automatic adjustment is not possible, the miter saw should stop running.

Claims

1. An automatic length measurement and operation control system for object processing, characterized in that: include: Data acquisition module, operation control module and feedback adjustment module; The data acquisition module is used to acquire the length measurement data of the object, perform length calibration by configuring the calibration block, and determine whether the length calibration is successful; The operation control module is used to control the operation path and operation position of the target device according to the length measurement data of the object through the operation adjustment strategy, process the object, and determine whether to stop the operation according to the remaining length of the object; The feedback adjustment module is used to monitor whether an operation position of a target device has an error during object processing, and adjust an initial operation path according to the horizontal and vertical coordinates of the operation position.

2. The automatic length measurement and operation control system for object processing according to claim 1, characterized in that: The length calibration mechanism includes: Selecting a reference measurement point, and obtaining a reference measurement value of the object based on the reference measurement point; Length measurement is performed at different positions of the object to obtain length measurement values ​​of the object at different positions, and the length measurement values ​​of the object at different positions are averaged to obtain the length measurement data of the object; Subtract the length measurement data from the reference measurement value to obtain the measurement difference; Configure the difference threshold, compare the measured difference with the difference threshold to determine whether calibration needs to be triggered; Configure the calibration block. If trigger calibration is required, perform length calibration based on the calibration block.

3. The automatic length measurement and operation control system for object processing according to claim 2, characterized in that: The logic of performing length calibration according to the calibration block includes: Select a fixed and calibrated standard workpiece as a calibration block, measure the calibration block at the reference measurement point, and record the length measurement value of the calibration block; Subtract the length measurement of the calibration block from the reference measurement of the object to obtain a calibration difference; The calibration difference is added to the reference measurement of the object to obtain a new reference measurement of the object.

4. The automatic length measurement and operation control system for object processing according to claim 3, characterized in that: The logic for determining whether the length calibration is successful includes: Re-measure the length of the object at different positions and calculate new length measurement data of the object; Subtract the new length measurement data from the new reference measurement value to obtain a new measurement difference value; If the new measured difference is less than or equal to the difference threshold, the length calibration is successful; If the new measured difference is greater than the difference threshold, it means that the length calibration is unsuccessful and the length calibration needs to be repeated.

5. The automatic length measurement and operation control system for object processing according to claim 4, characterized in that: The operation adjustment strategy includes: Receiving the length measurement data of the object after length calibration, and configuring the initial operation path, the target length and the width of the equipment component, and adding the target length and the width of the equipment component to obtain the operation value; Get the thickness value of the object, calculate the operation position, operate the object according to the initial operation path, and get the remaining length of the object after the operation; If the remaining length of the object is greater than the operation value, continue to operate the object according to the initial operation path and update the operation position; Configure the proximity threshold. If the remaining length of the object is less than or equal to the sum of the operation value and the proximity threshold, reduce the feed speed of the equipment component, operate the object according to the initial operation path, and update the operation position. If the remaining length of the object is less than or equal to the operation value, the operation stops.

6. The automatic length measurement and operation control system for object processing according to claim 5, characterized in that: Configure a standard operating position, and obtain a position difference by subtracting the operating position of the target device from the standard operating position; Configure an operation error threshold, compare the position difference with the operation error threshold to determine whether an operation position of the target device has an error. If the position difference is less than or equal to the operation error threshold, then the operation position of the target device has no error. If the position difference is greater than the operation error threshold, an error occurs in the operation position of the target device.

7. The automatic length measurement and operation control system for object processing according to claim 6, characterized in that: When an error occurs in the operation position of the target device, the initial operation path is adjusted, and the adjustment logic of the initial operation path includes: The horizontal coordinate of the operation position is obtained, and the length error of the operation position is obtained by subtracting the value of the horizontal coordinate of the operation position from the target length; The path adjustment amount of the target device in the length direction is determined according to the length error of the operating position and the remaining length of the object.

8. The automatic length measurement and operation control system for object processing according to claim 7, characterized in that: The adjustment logic of the initial operation path also includes: Obtain the ordinate of the operating position, configure the standard thickness, and subtract the value of the ordinate of the operating position from the standard thickness to obtain the thickness error of the operating position; determining a path adjustment amount of the target device in the thickness direction according to the thickness error at the operating position; The path adjustment amount and the path adjustment direction of the target device are comprehensively determined according to the path adjustment amount of the target device in the length direction and the path adjustment amount of the target device in the thickness direction.

9. The automatic length measurement and operation control system for object processing according to claim 8, characterized in that: The logic of the path adjustment amount of the target device includes: The obtained path adjustment amounts of the target device in the length direction and the thickness direction are respectively squared to obtain the square values ​​of the path adjustment amounts of the target device in the length direction and the thickness direction; Add the square values ​​of the path adjustment amounts of the target device in the length direction and the thickness direction to obtain a square sum value; Perform a square root operation on the sum of squares to obtain the path adjustment amount of the target device.

Images