Drill bit detection method and system for electric control drilling machine

Abstract

The invention relates to the technical field of drill bit detection, and particularly provides a drill bit detection method and system for an electric control drilling machine, and the system comprises a rotary fixed table, a parallel light measurement unit, an ultrasonic detection unit and a control unit. Wherein the control unit is electrically connected with the rotary fixing table, the parallel light measurement unit and the ultrasonic detection unit, and the control unit comprises an acquisition module, a judgment module, a processing module and an adjustment module. According to the invention, a plurality of modules such as the rotary fixed table, the parallel light measuring unit and the ultrasonic detection unit are integrated. Automatic detection of key parameters such as surface damage, roundness and straightness of the drill bit is achieved, and meanwhile the ultrasonic detection unit is used for accurately recognizing internal defects of the drill bit. The precision and the efficiency of drill bit detection are improved, the interference of human factors is reduced, and the production quality and the production efficiency of drill bits are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drill bit detection, and more particularly, to a method and system for detecting drill bits for an electric control drilling rig. Background Art

[0002] The drill bit of an electric control drilling rig is a key tool for drilling operations in industrial production. It is usually made of high-hardness and wear-resistant materials to meet different material and process requirements. The importance of detecting the drill bit of an electric control drilling rig lies in ensuring the quality and performance of the drill bit, thereby guaranteeing the accuracy, efficiency, and safety of the drilling operation. Through detection, defects or damages of the drill bit, such as surface wear, cutting edge damage, irregular geometry, etc., can be discovered in a timely manner, and it can be repaired or replaced to avoid workpiece damage, production delays, or safety accidents caused by poor drill bit quality. In addition, accurate detection results can also help to extend the service life of the drill bit, reduce production costs, and ensure the stability and consistency of the drilling operation, thereby improving the overall production efficiency and product quality.

[0003] However, current drill bit detection technologies mainly rely on visual inspection and manual measurement, and this method has some deficiencies. Especially in the detection of the roundness and straightness of drill bits, there is a lack of automated detection equipment, and manual operation is easily affected by the experience of operators, resulting in low accuracy and consistency of detection results, and at the same time reducing the detection efficiency. In addition, the detection of internal defects of drill bits also faces difficulties because manual detection cannot effectively identify these defects, resulting in poor detection accuracy, and the detection process requires a lot of time and effort.

[0004] Therefore, it is necessary to design a method and system for detecting drill bits for an electric control drilling rig to solve the problems existing in current drill bit detection technologies. Summary of the Invention

[0005] In view of this, the present invention proposes a method and system for detecting drill bits for an electric control drilling rig, aiming to solve the problems of lack of automated detection equipment, low accuracy and reliability of detection results, and time-consuming and laborious detection in current detection of drill bits for electric control drilling rigs.

[0006] On the one hand, the present invention proposes a system for detecting drill bits for an electric control drilling rig, including:

[0007] A rotary fixing table for fixing the drill bit to be detected; the drill bit to be detected includes a conical head and a cylindrical tail; one end of the rotary fixing table is used to clamp the cylindrical tail and press the conical head of the drill bit to be detected against the other end of the rotary fixing table so as to fix the drill bit to be detected;

[0008] The parallel light measuring unit includes a transmitting end and a receiving end. At least two groups of the parallel light measuring units are provided. The transmitting end is fixedly arranged on one side of the rotary fixing table. The transmitting end is used to emit parallel light to the drill bit to be detected, and the diameter of the parallel light is greater than the diameter of the cylindrical tail. The receiving end is arranged on the other side of the rotary fixing table, and the receiving end is correspondingly arranged with the transmitting end. The receiving end is used to receive the parallel light.

[0009] The ultrasonic detection unit is arranged on one side of the rotary fixing table. The ultrasonic detection unit is used to emit ultrasonic waves to the drill bit to be detected and detect internal defects of the drill bit to be detected.

[0010] The control unit is electrically connected to the rotary fixing table, the parallel light measuring unit and the ultrasonic detection unit. The control unit includes: an acquisition module, a judgment module, a processing module and an adjustment module.

[0011] The acquisition module is configured to acquire first image data of the parallel light measuring unit. The acquisition module analyzes the first image data to obtain the diameter size of the cylindrical tail, and determines the rotation speed of the rotary fixing table according to the diameter size.

[0012] After the acquisition module determines the rotation speed, the acquisition module is further configured to obtain the end face data of the drill bit to be detected according to multiple groups of image data of the same parallel light measuring unit within a first preset time period, and judge whether there is damage on the surface of the drill bit to be detected according to the end face data.

[0013] When the acquisition module determines that there is no damage on the surface of the drill bit to be detected, the acquisition module is further configured to judge whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter sizes of the same parallel light measuring unit within a first preset time period.

[0014] When the acquisition module determines that the roundness of the cylindrical tail is qualified, the judgment module is configured to acquire second image data of different parallel light measuring units at the same moment, and judge whether the straightness of the drill bit to be detected is qualified according to the second image data.

[0015] When the judgment module determines that the straightness of the drill bit to be detected is qualified, the processing module is configured to determine the quality grade of the drill bit to be detected according to the roundness data and the straightness data.

[0016] The adjustment module is configured to, after the processing module determines the quality grade of the drill bit to be detected, acquire the echo signal of the ultrasonic detection unit, and judge whether to adjust the quality grade according to the echo signal.

[0017] Further, when the acquisition module determines the rotation speed of the rotary fixing table according to the diameter dimension, it includes:

[0018] The acquisition module compares the diameter dimension D with a preset first preset diameter D1 and a second preset diameter D2 respectively, where D1 < D2, and determines the rotation speed of the rotary fixing table according to the comparison result;

[0019] Specifically:

[0020] When D ≤ D1, the acquisition module determines that the rotation speed of the rotary fixing table is the first preset rotation speed V1;

[0021] When D1 < D ≤ D2, the acquisition module determines that the rotation speed of the rotary fixing table is the second preset rotation speed V2;

[0022] When D2 < D, the acquisition module determines that the rotation speed of the rotary fixing table is the third preset rotation speed V3;

[0023] Among them, V1 < V2 < V3.

[0024] Further, when the acquisition module determines whether there is damage on the surface of the drill bit to be detected according to the end face data, it includes:

[0025] The acquisition module obtains the height difference ΔH between the highest point and the lowest point of the end face according to the end face data, compares the height difference ΔH with a preset difference threshold ΔH0, and determines whether there is damage on the surface of the drill bit to be detected according to the comparison result; specifically:

[0026] When ΔH < ΔH0, the acquisition module determines that there is no damage on the surface of the drill bit to be detected;

[0027] When ΔH ≥ ΔH0, the acquisition module determines that there is damage on the surface of the drill bit to be detected.

[0028] Further, when the acquisition module determines whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter dimensions of the same parallel light measurement unit within a first preset period, it includes:

[0029] The acquisition module obtains the diameter difference ΔD between the maximum diameter dimension and the minimum diameter dimension according to multiple groups of diameter dimensions, and compares the diameter difference ΔD with a preset diameter difference threshold ΔD0, and determines whether the roundness of the cylindrical tail is qualified according to the comparison result; specifically:

[0030] When ΔD < ΔD0, the acquisition module determines that the roundness of the cylindrical tail is qualified;

[0031] When ΔD ≥ ΔD0, the acquisition module determines that the roundness of the cylindrical tail is unqualified.

[0032] Further, when the judgment module determines whether the straightness of the drill bit to be detected is qualified according to the second image data, it includes:

[0033] The judgment module obtains the diameter data of different positions of the cylindrical tail according to the second image data, obtains the centers of the circles of different parts of the cylindrical tail according to the diameter data, connects the centers of the circles to form a fitting straight line, and compares the fitting straight line with the horizontal line to determine whether the straightness of the drill bit to be detected is qualified; specifically:

[0034] When the deviation angle between the fitting straight line and the horizontal line is within the deviation threshold, the judgment module determines that the straightness of the drill bit to be detected is qualified;

[0035] When the deviation angle between the fitting straight line and the horizontal line is greater than or equal to the deviation threshold, the judgment module determines that the straightness of the drill bit to be detected is unqualified.

[0036] Further, when the processing module determines the quality grade of the drill bit to be detected according to the roundness data and the straightness data, it includes:

[0037] The processing module obtains an appearance detection score according to the roundness data and the straightness data, and determines the quality grade of the drill bit to be detected according to the appearance detection score;

[0038] The appearance detection score is calculated by the following formula:

[0039]

[0040] Where G represents the appearance detection score, ΔD0 represents the diameter difference threshold, ΔD represents the diameter difference, J0 represents the deviation angle of the fitting straight line, Jmax represents the deviation threshold, α and β are weights, and α + β = 1.

[0041] Further, when the processing module determines the quality grade of the drill bit to be detected according to the appearance detection score, it includes:

[0042] The processing module compares the appearance detection score G with a preset first preset appearance detection score G1 and a second preset appearance detection score G2 respectively, G1 < G2, and determines the quality grade of the drill bit to be detected according to the comparison result; specifically:

[0043] When G ≤ G1, the processing module determines that the quality grade of the drill bit to be detected is the first preset quality grade Q1;

[0044] When G1 < G ≤ G2, the processing module determines that the quality grade of the drill bit to be detected is the second preset quality grade Q2;

[0045] When G2 < G, the processing module determines that the quality grade of the drill bit to be detected is the third preset quality grade Q3;

[0046] Among them, the first preset quality grade Q1 indicates that the quality of the drill bit to be detected is higher than the second preset quality grade Q2, and the second preset quality grade Q2 indicates that the quality of the drill bit to be detected is higher than the third preset quality grade Q3.

[0047] Further, after the processing module determines that the quality grade of the drill bit to be detected is the i-th preset quality grade Qi, i = 1, 2, 3, when the adjustment module determines whether to adjust the quality grade according to the echo signal, it includes:

[0048] The adjustment module compares the echo amplitudes in the echo signal with the preset amplitude Fmax respectively, and determines whether to adjust the quality grade according to the comparison result; specifically:

[0049] When there is an echo amplitude higher than the preset amplitude Fmax, the adjustment module determines that there are defects inside the drill bit to be detected and adjusts the quality grade Qi of the drill bit to be detected;

[0050] When all the echo amplitudes are lower than the preset amplitude Fmax, the adjustment module determines that there are no defects inside the drill bit to be detected and does not adjust the quality grade Qi of the drill bit to be detected.

[0051] Further, when the adjustment module adjusts the quality grade Qi of the drill bit to be detected, it includes:

[0052] The adjustment module collects the number of echoes N of the echo amplitudes higher than the preset amplitude Fmax, compares the number of echoes N with the number threshold Nmax, and adjusts the quality grade Qi of the drill bit to be detected according to the comparison result; specifically:

[0053] When N ≤ Nmax, the adjustment module lowers the quality grade of the drill bit to be detected by one level, and maintains the original quality grade when the original quality grade is the third preset quality grade Q3;

[0054] When N > Nmax, the adjustment module lowers the quality grade of the drill bit to be detected by two levels, and maintains the original quality grade when the original quality grade is the third preset quality grade Q3; when the original quality grade is the second preset quality grade Q2, the quality grade is lowered to the third preset quality grade Q3.

[0055] Compared with the prior art, the beneficial effects of the present invention are as follows: This application integrates key modules such as a rotary fixing table, a collimated light measuring unit, and an ultrasonic detection unit. It realizes the automatic detection of key parameters such as surface damage, roundness, and straightness of the drill bit, and at the same time accurately identifies internal defects of the drill bit using the ultrasonic detection unit. The detection process of this application is non-contact measurement, avoiding the risk of secondary damage to the drill bit caused by quality inspection, and improving the detection speed. Through the acquisition, processing, and analysis of various data, the quality grade of the drill bit can be quickly and accurately determined, and adjustments can be made when necessary, thus ensuring the stable operation of the production line. The accuracy and efficiency of drill bit detection are improved, the interference of human factors is reduced, and the production quality and production efficiency of drill bits are enhanced.

[0056] On the other hand, this application also proposes a drill bit detection method for an electric control drilling rig, which is applied to the above-mentioned drill bit detection system for an electric control drilling rig, and includes:

[0057] Collect the first image data of the collimated light measuring unit, analyze the first image data to obtain the diameter size of the cylindrical tail, and determine the rotation speed of the rotary fixing table according to the diameter size;

[0058] After determining the rotation speed, obtain the end face data of the drill bit to be detected according to multiple groups of image data of the same collimated light measuring unit within a first preset time period, and judge whether there is damage on the surface of the drill bit to be detected according to the end face data;

[0059] When it is determined that there is no damage on the surface of the drill bit to be detected, judge whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter sizes of the same collimated light measuring unit within a first preset time period;

[0060] When it is determined that the roundness of the cylindrical tail is qualified, collect the second image data of different collimated light measuring units at the same moment, and judge whether the straightness of the drill bit to be detected is qualified according to the second image data;

[0061] When it is determined that the straightness of the drill bit to be detected is qualified, determine the quality grade of the drill bit to be detected according to the roundness data and the straightness data;

[0062] After determining the quality grade of the drill bit to be detected, collect the echo signal of the ultrasonic detection unit, and judge whether to adjust the quality grade according to the echo signal.

[0063] It can be understood that the above-mentioned drill bit detection method and system for an electric control drilling rig have the same beneficial effects, which will not be elaborated here. Description of the Drawings

[0064] Various other advantages and benefits will become clear to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0065] Figure 1 FIG. is a functional block diagram of a bit detection system for an electric control drill provided by an embodiment of the present invention;

[0066] Figure 2 FIG. is a flowchart of a bit detection method for an electric control drill provided by an embodiment of the present invention. Detailed Embodiments

[0067] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0068] The bit of an electric control drill is a crucial drilling tool in industrial production. Ensuring its quality and performance is essential for the accuracy, efficiency, and safety of drilling operations. Effective bit detection can promptly identify defects or damages in the bit, such as surface wear, cutting edge damage, and irregular geometric shapes, and take corresponding repair or replacement measures to avoid workpiece damage, production delays, and even safety accidents caused by poor bit quality. In addition, accurate detection results can also help improve the service life of the bit, reduce production costs, ensure the stability and consistency of drilling operations, and thus enhance the overall production efficiency and product quality level. However, current bit detection technologies mainly rely on visual inspection and manual measurement, which have a series of problems. Especially in the detection of bit roundness and straightness, due to the lack of automated detection equipment, manual operation is easily affected by the experience of the operator, resulting in low accuracy and consistency of the detection results, and also reducing the detection efficiency. In addition, it is difficult to detect internal defects of the bit because manual detection cannot effectively identify these defects, resulting in poor detection accuracy and a large amount of time and effort required for the detection process. Therefore, in view of the various problems existing in the current bit detection technology, there is an urgent need to design a more advanced and automated bit detection method and system.

[0069] Refer to Figure 1As shown in the figure, this embodiment provides a bit detection system for an electric control drill, including: a rotary fixing table, a parallel light measurement unit, an ultrasonic detection unit, and a control unit. Among them, the rotary fixing table is used to fix the bit to be detected. The bit to be detected includes a conical head and a cylindrical tail. One end of the rotary fixing table is used to clamp the cylindrical tail and press the conical head of the bit to be detected against the other end of the rotary fixing table so that the bit to be detected is fixed.

[0070] The parallel light measurement unit includes a transmitting end and a receiving end. At least two groups of parallel light measurement units are provided. The transmitting end is fixedly arranged on one side of the rotary fixing table. The transmitting end is used to emit parallel light to the bit to be detected, and the diameter of the parallel light is greater than the diameter of the cylindrical tail. The receiving end is arranged on the other side of the rotary fixing table and is correspondingly arranged with the transmitting end. The receiving end is used to receive the parallel light.

[0071] The ultrasonic detection unit is arranged on one side of the rotary fixing table. The ultrasonic detection unit is used to emit ultrasonic waves to the bit to be detected to detect internal defects of the bit to be detected.

[0072] The control unit is electrically connected to the rotary fixing table, the parallel light measurement unit, and the ultrasonic detection unit. The control unit includes: an acquisition module, a judgment module, a processing module, and an adjustment module.

[0073] The acquisition module is configured to acquire first image data of the parallel light measurement unit. The acquisition module analyzes the first image data to obtain the diameter size of the cylindrical tail and determines the rotation speed of the rotary fixing table according to the diameter size.

[0074] After the acquisition module determines the rotation speed, the acquisition module is further configured to obtain the end face data of the bit to be detected according to multiple groups of image data of the same parallel light measurement unit within a first preset time period, and judge whether there is damage on the surface of the bit to be detected according to the end face data. In the above operations, the end face data is acquired after the rotation speed is determined. The reason for this order is that this order enables the acquisition module to acquire images at fixed time intervals, ensuring the consistency and accuracy of the image data, and can also help the acquisition module adjust the image acquisition frequency and exposure time according to the rotation speed to avoid image blurring or distortion.

[0075] When the acquisition module determines that there is no damage on the surface of the bit to be detected, the acquisition module is further configured to judge whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter sizes of the same parallel light measurement unit within a first preset time period.

[0076] When the acquisition module determines that the roundness of the cylindrical tail is qualified, the judgment module is configured to acquire second image data of different parallel light measurement units at the same moment and judge whether the straightness of the bit to be detected is qualified according to the second image data.

[0077] When the judgment module determines that the straightness of the drill bit to be detected is qualified, the processing module is configured to determine the quality grade of the drill bit to be detected according to the roundness data and the straightness data.

[0078] The adjustment module is configured to collect the echo signal of the ultrasonic detection unit after the processing module determines the quality grade of the drill bit to be detected, and judge whether to adjust the quality grade according to the echo signal.

[0079] Specifically, first, the drill bit to be detected is fixed on the rotary fixing table to ensure the stability of the drill bit. The parallel light measuring unit emits parallel light to the drill bit to be detected through the transmitting end, and the receiving end receives the parallel light. Since the drill bit to be detected is located between the transmitting end and the receiving end, due to the occlusion of the drill bit to be detected, there will be an occlusion shadow in the image received by the receiving end, forming the first set of image data. By analyzing these data, the diameter size of the cylindrical tail can be determined, and the rotation speed of the rotary fixing table can be adjusted accordingly. Then, within a certain period of time, the parallel light measuring unit collects multiple sets of image data and analyzes the end face data of the occlusion shadow. The end face data is the graphic data of the upper edge and the lower edge of the shadow. When there is breakage, there will be a notch in the occlusion shadow, so as to judge whether there is damage on the surface of the drill bit. If the surface is not damaged, the acquisition module continues to judge whether the roundness of the cylindrical tail is qualified according to multiple sets of diameter sizes. After the roundness is qualified, the judgment module collects the second set of image data at the same moment and judges whether the straightness of the drill bit meets the requirements according to this data. When the straightness of the drill bit to be detected is qualified, the processing module determines the quality grade of the drill bit according to the roundness data and the straightness data. Finally, if the quality grade is determined, the adjustment module collects the echo signal of the ultrasonic detection unit to further confirm the quality of the drill bit and make adjustments if necessary.

[0080] It can be understood that by combining modules such as the rotary fixing table, the parallel light measuring unit, and the ultrasonic detection unit, a comprehensive and automated drill bit detection process is realized. Through the application of automated detection equipment, the problems existing in the current drill bit detection technology are effectively solved, such as low accuracy and consistency of manual detection, and inability to effectively identify internal defects. It can quickly and accurately detect parameters such as surface breakage, roundness, and straightness of the drill bit, and determine the quality grade of the drill bit, improving the detection accuracy and efficiency. At the same time, the internal defects of the drill bit are identified through the ultrasonic detection unit, further improving the comprehensiveness and accuracy of the detection. Applying this system can effectively reduce the interference of human factors and improve the production quality and production efficiency of drill bits.

[0081] In some embodiments of the present application, when the acquisition module determines the rotation speed of the rotary fixing table according to the diameter size, it includes: the acquisition module compares the diameter size D with a preset first preset diameter D1 and a second preset diameter D2 respectively, D1 < D2, and determines the rotation speed of the rotary fixing table according to the comparison result.

[0082] Specifically, when D ≤ D1, the acquisition module determines that the rotation speed of the rotary fixing table is the first preset rotation speed V1. When D1 < D ≤ D2, the acquisition module determines that the rotation speed of the rotary fixing table is the second preset rotation speed V2. When D2 < D, the acquisition module determines that the rotation speed of the rotary fixing table is the third preset rotation speed V3. Among them, V1 < V2 < V3.

[0083] It can be understood that the cylindrical tail of the drill bit to be detected is connected to the rotary fixing table, and the rotary fixing table needs to rotate at a certain speed to obtain various data of the drill bit. When the drill bit to be detected is small, in order to fully detect the data of each position of the drill bit, it is necessary to ensure that the parallel light measurement unit collects the data of each part of the drill bit completely. Therefore, a lower rotation speed is beneficial to improving the data collection rate. When the drill bit is large, a higher rotation speed is adopted to achieve the purpose of rapid detection, which is beneficial to shortening the detection time.

[0084] In some embodiments of the present application, when the acquisition module determines whether there is damage on the surface of the drill bit to be detected according to the end face data, it includes: the acquisition module obtains the height difference ΔH between the highest point and the lowest point of the end face according to the end face data, compares the height difference ΔH with a preset difference threshold ΔH0, and determines whether there is damage on the surface of the drill bit to be detected according to the comparison result.

[0085] Specifically, when ΔH < ΔH0, the acquisition module determines that there is no damage on the surface of the drill bit to be detected. When ΔH ≥ ΔH0, the acquisition module determines that there is damage on the surface of the drill bit to be detected.

[0086] It can be understood that by collecting the end face data of the drill bit to be detected, specifically measuring the height difference ΔH between the highest point and the lowest point of the end face, and comparing it with a preset difference threshold ΔH0. Using the height difference as a damage index, it is determined whether there is damage on the surface of the drill bit to be detected by judging whether the height difference exceeds the set threshold. If the height difference ΔH is less than the set threshold ΔH0, it is determined that the surface of the drill bit to be detected is not damaged; on the contrary, if the height difference ΔH is greater than or equal to the set threshold ΔH0, it is determined that there is damage on the surface of the drill bit to be detected. Judging whether there is damage on the surface indirectly through the change of the end face height avoids the subjectivity and inaccuracy of direct observation and manual judgment, and is beneficial to improving the accuracy and reliability of detection.

[0087] In some embodiments of the present application, when the acquisition module determines whether the roundness of the cylindrical tail is qualified according to multiple sets of diameter dimensions of the same parallel light measurement unit within the first preset time period, it includes: the acquisition module obtains the diameter difference ΔD between the maximum diameter dimension and the minimum diameter dimension according to the multiple sets of diameter dimensions, compares the diameter difference ΔD with a preset diameter difference threshold ΔD0, and determines whether the roundness of the cylindrical tail is qualified according to the comparison result.

[0088] Specifically, when ΔD < ΔD0, the acquisition module determines that the roundness of the cylindrical tail is qualified. When ΔD ≥ ΔD0, the acquisition module determines that the roundness of the cylindrical tail is unqualified.

[0089] It can be understood that in the drilling operation, if the roundness of the drill bit is unqualified, it will cause uneven drilling diameter and even deviation, affecting the assembly accuracy and quality of the workpiece. Therefore, it is very important to accurately judge the roundness of the drill bit. Using the method based on the diameter difference to judge the roundness of the drill bit can simply and quickly evaluate the quality of the drill bit, effectively avoiding quality problems caused by unqualified roundness of the drill bit.

[0090] In some embodiments of the present application, when the judgment module determines whether the straightness of the drill bit to be detected is qualified according to the second image data, it includes: the judgment module obtains the diameter data of different positions of the cylindrical tail according to the second image data, obtains the centers of the circle of different parts of the cylindrical tail according to the diameter data, connects the centers of the circle to form a fitted straight line, and compares the fitted straight line with the horizontal line to determine whether the straightness of the drill bit to be detected is qualified.

[0091] Specifically, when the deviation angle between the fitted straight line and the horizontal line is within the deviation threshold, the judgment module determines that the straightness of the drill bit to be detected is qualified. When the deviation angle between the fitted straight line and the horizontal line is greater than or equal to the deviation threshold, the judgment module determines that the straightness of the drill bit to be detected is unqualified.

[0092] It can be understood that by obtaining the diameter data of different positions of the cylindrical tail and obtaining the centers of the circle of different parts of the cylindrical tail according to these data, and then connecting these centers of the circle to form a fitted straight line. Then, the fitted straight line is compared with the horizontal line to determine whether the straightness of the drill bit to be detected is qualified. When the deviation angle between the fitted straight line and the horizontal line is within the preset deviation threshold, the judgment module will determine that the straightness of the drill bit to be detected is qualified; otherwise, if the deviation angle is greater than or equal to the deviation threshold, the judgment module will determine that the straightness of the drill bit to be detected is unqualified. This embodiment can evaluate the straightness of the drill bit in an intuitive way. Through the comparison of the fitted straight line with the horizontal line, the automatic detection of the straightness is realized, reducing the subjectivity and error of manual judgment. At the same time, this method is fast in operation, and has high accuracy and reliability, effectively improving the efficiency and accuracy of drill bit detection.

[0093] In some embodiments of the present application, when the processing module determines the quality grade of the drill bit to be detected according to the roundness data and the straightness data, it includes: the processing module obtains the appearance detection score according to the roundness data and the straightness data, and determines the quality grade of the drill bit to be detected according to the appearance detection score.

[0094] Specifically, the appearance detection score is calculated by the following formula:

[0095]

[0096] Among them, G represents the appearance detection score, ΔD0 represents the diameter difference threshold, ΔD represents the diameter difference, J0 represents the fitting line deviation angle, Jmax represents the deviation threshold, α and β are weights, and α + β = 1.

[0097] It can be understood that the appearance detection score is calculated by calculating the roundness data and straightness data. This score reflects the surface condition of the drill bit to be detected and the degree of deviation of the geometric shape. Specifically, the score includes two factors, namely the diameter difference and the fitting line deviation angle, which respectively represent the roundness and straightness deviations of the drill bit. The smaller the score value, the smaller the diameter difference and the fitting line deviation angle, that is, it indicates that the roundness and straightness of the drill bit are closer to the ideal state, the surface quality is higher, and the geometric shape is more regular. Therefore, the smaller the score value, the higher the quality level, representing better quality of the drill bit.

[0098] In some embodiments of the present application, when the processing module determines the quality level of the drill bit to be detected according to the appearance detection score, it includes: the processing module compares the appearance detection score G with a preset first preset appearance detection score G1 and a second preset appearance detection score G2 respectively, G1 < G2, and determines the quality level of the drill bit to be detected according to the comparison result.

[0099] Specifically, when G ≤ G1, the processing module determines that the quality level of the drill bit to be detected is the first preset quality level Q1. When G1 < G ≤ G2, the processing module determines that the quality level of the drill bit to be detected is the second preset quality level Q2. When G2 < G, the processing module determines that the quality level of the drill bit to be detected is the third preset quality level Q3. Among them, the first preset quality level Q1 indicates that the quality of the drill bit to be detected is higher than the second preset quality level Q2, and the second preset quality level Q2 indicates that the quality of the drill bit to be detected is higher than the third preset quality level Q3.

[0100] It can be understood that the appearance inspection score is calculated based on the roundness data and straightness data, comprehensively considering the diameter difference of the drill bit and the deviation angle of the fitted straight line, and determining their relative importance according to the preset weight factor. Through the calculation of the appearance inspection score, the processing module can objectively evaluate the appearance quality of the drill bit to be detected, and then determine its quality grade. The processing module compares the appearance inspection score with the first and second preset appearance inspection scores, and determines the quality grade of the drill bit to be detected according to the comparison result. When the appearance inspection score is lower than the first preset value, the quality grade of the drill bit to be detected is determined as the first preset quality grade; when the appearance inspection score is between the first and second preset values, its quality grade is determined as the second preset quality grade; and when the appearance inspection score is higher than the second preset value, its quality grade is determined as the third preset quality grade.

[0101] It can be understood that the method of evaluating the quality of the drill bit based on data avoids the errors and uncertainties brought by subjective evaluation. Through the calculation of the appearance inspection score, the processing module can accurately judge the quality level of the drill bit, and then take corresponding measures, such as repair or replacement, to ensure product quality and production efficiency, which helps to improve the controllability and stability of the drill bit production or use process.

[0102] In some embodiments of the present application, when the processing module determines that the quality grade of the drill bit to be detected is the i-th preset quality grade Qi, i = 1, 2, 3, when the adjustment module determines whether to adjust the quality grade according to the echo signal, it includes: the adjustment module compares the echo amplitudes in the echo signal with the preset amplitude Fmax respectively, and determines whether to adjust the quality grade according to the comparison result.

[0103] Specifically, when there is an echo amplitude higher than the preset amplitude Fmax, the adjustment module determines that there is a defect inside the drill bit to be detected and adjusts the quality grade Qi of the drill bit to be detected. When all echo amplitudes are lower than the preset amplitude Fmax, the adjustment module determines that there is no defect inside the drill bit to be detected and does not adjust the quality grade Qi of the drill bit to be detected.

[0104] In some embodiments of the present application, when the adjustment module adjusts the quality grade Qi of the drill bit to be detected, it includes: the adjustment module collects the number of echoes N of the echo amplitudes higher than the preset amplitude Fmax, compares the number of echoes N with the number threshold Nmax, and adjusts the quality grade Qi of the drill bit to be detected according to the comparison result.

[0105] Specifically, when N ≤ Nmax, the adjustment module lowers the quality grade of the drill bit to be detected by one level, and keeps it unchanged when the original quality grade is the third preset quality grade Q3. When N > Nmax, the adjustment module lowers the quality grade of the drill bit to be detected by two levels, and keeps it unchanged when the original quality grade is the third preset quality grade Q3. When the original quality grade is the second preset quality grade Q2, the quality grade is lowered to the third preset quality grade Q3.

[0106] It can be understood that when ultrasonic waves propagate inside an object, they will encounter interfaces with different densities, shapes or structures, resulting in reflection or scattering and forming echoes. In ultrasonic testing, if there are no defects inside the material, the amplitude of the echo signal will remain at a relatively constant level, and the reflected signal is usually clear and continuous. When there are defects, the echo fluctuates. The adjustment module compares the echo amplitude of the echo signal with the preset amplitude to determine whether there are defects inside the drill bit to be detected. If there is an echo amplitude higher than the preset amplitude, it is determined that there are defects inside the drill bit, and the quality grade of the drill bit to be detected is adjusted accordingly. The adjustment module further compares the number of echoes higher than the preset amplitude with the number threshold to determine the specific degree of adjustment of the quality grade. Through this process, the dynamic adjustment of the quality grade of the drill bit to be detected can be realized, ensuring product quality. Based on the real-time monitoring and analysis of the echo signal, the internal defects of the drill bit can be detected and judged in time, thus avoiding production problems and safety hazards caused by defects. Through the dynamic adjustment of the quality grade, the production or use process can be made more flexible and controllable, further ensuring the stability and consistency of product quality.

[0107] In the above embodiments, key modules such as a rotary fixing table, a parallel light measuring unit, and an ultrasonic detection unit are integrated. The automatic detection of key parameters such as surface damage, roundness, and straightness of the drill bit is realized, and at the same time, the ultrasonic detection unit is used to accurately identify internal defects of the drill bit. The detection process of this application is non-contact measurement, which avoids the risk of secondary damage to the drill bit caused by quality inspection, and improves the detection speed. Through the acquisition, processing and analysis of various data, the quality grade of the drill bit can be quickly and accurately determined, and adjusted when necessary, thus ensuring the stable operation of the production line. The accuracy and efficiency of drill bit detection are improved, the interference of human factors is reduced, and the production quality and production efficiency of drill bits are improved.

[0108] Refer to Figure 2 As shown, this application also proposes a drill bit detection method for an electric control drill rig, which is applied to the above-mentioned drill bit detection system for an electric control drill rig, and includes:

[0109] S100: Collect the first image data of the parallel light measuring unit, analyze the first image data to obtain the diameter size of the cylindrical tail, and determine the rotation speed of the rotary fixing table according to the diameter size;

[0110] S200: After determining the rotation speed, obtain the end face data of the drill bit to be detected based on multiple groups of image data of the same parallel light measurement unit within the first preset period, and determine whether there is damage on the surface of the drill bit to be detected according to the end face data;

[0111] S300: When it is determined that there is no damage on the surface of the drill bit to be detected, determine whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter dimensions of the same parallel light measurement unit within the first preset period;

[0112] S400: When it is determined that the roundness of the cylindrical tail is qualified, collect the second image data of different parallel light measurement units at the same moment, and determine whether the straightness of the drill bit to be detected is qualified according to the second image data;

[0113] S500: When it is determined that the straightness of the drill bit to be detected is qualified, determine the quality grade of the drill bit to be detected according to the roundness data and the straightness data;

[0114] S600: After determining the quality grade of the drill bit to be detected, collect the echo signal of the ultrasonic detection unit, and determine whether to adjust the quality grade according to the echo signal.

[0115] It can be understood that this method integrates key modules such as a rotating fixed table, a parallel light measurement unit, and an ultrasonic detection unit. It realizes the automatic detection of key parameters such as the surface damage, roundness, and straightness of the drill bit, and at the same time uses the ultrasonic detection unit to accurately identify the internal defects of the drill bit. The detection process of this application is non-contact measurement, which avoids the risk of secondary damage to the drill bit caused by quality inspection and improves the detection speed. Through the collection, processing, and analysis of various data, the quality grade of the drill bit can be quickly and accurately determined, and adjusted when necessary, so as to ensure the stable operation of the production line. It improves the accuracy and efficiency of drill bit detection, reduces the interference of human factors, and improves the production quality and production efficiency of drill bits.

[0116] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0117] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, as well as the combination of flows and / or blocks in the flowchart and / or block diagram. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0118] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0119] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A drill bit detection system for an electric-controlled drilling rig, characterized in that: include: A rotating fixed platform, used to fix the drill bit to be tested; the drill bit to be tested includes a conical head and a cylindrical tail; one end of the rotating fixed platform is used to clamp the cylindrical tail, and press the conical head of the drill bit to be tested toward the other end of the rotating fixed platform to fix the drill bit to be tested; A parallel light measuring unit, comprising a transmitting end and a receiving end, wherein the parallel light measuring unit is provided with at least two groups; the transmitting end is fixedly arranged on one side of the rotating fixed platform, and is used to transmit parallel light to the drill bit to be detected, and the diameter of the parallel light is greater than the diameter of the cylindrical tail; the receiving end is arranged on the other side of the rotating fixed platform, and the receiving end is arranged corresponding to the transmitting end, and is used to receive the parallel light; An ultrasonic detection unit is arranged on one side of the rotating fixed platform, and is used to emit ultrasonic waves to the drill bit to be detected to detect internal defects of the drill bit to be detected; A control unit, electrically connected to the rotating fixed platform, the parallel light measuring unit and the ultrasonic detection unit, the control unit comprising: a collection module, a judgment module, a processing module and an adjustment module; The acquisition module is configured to acquire first image data of the parallel light measurement unit, the acquisition module analyzes the first image data to obtain the diameter size of the cylindrical tail, and determines the rotation speed of the rotating fixed platform according to the diameter size; After the acquisition module determines the rotation speed, the acquisition module is further configured to acquire end surface data of the drill to be detected according to multiple sets of image data of the same parallel light measurement unit within a first preset time period, and determine whether the surface of the drill to be detected is damaged according to the end surface data; When the acquisition module determines that there is no damage on the surface of the drill bit to be detected, the acquisition module is further configured to determine whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter dimensions of the same parallel light measurement unit within a first preset time period; When the acquisition module determines that the roundness of the cylindrical tail is qualified, the judgment module is configured to collect second image data of the same moment and different from the parallel light measurement unit, and judge whether the straightness of the drill to be inspected is qualified according to the second image data; When the judging module determines that the straightness of the drill to be inspected is qualified, the processing module is configured to determine the quality grade of the drill to be inspected according to the roundness data and the straightness data; The adjustment module is configured to collect the echo signal of the ultrasonic detection unit after the processing module determines the quality level of the drill bit to be detected, and determine whether to adjust the quality level according to the echo signal.

2. The drill bit detection system for an electric-controlled drilling rig according to claim 1, characterized in that: When the acquisition module determines the rotation speed of the rotating fixed platform according to the diameter size, it includes: The acquisition module compares the diameter size D with the first preset diameter D1 and the second preset diameter D2 respectively, D1<D2, and determines the rotation speed of the rotating fixed table according to the comparison result; specifically: When D≤D1, the acquisition module determines that the rotation speed of the rotating fixed platform is a first preset rotation speed V1; When D1<D≤D2, the acquisition module determines that the rotation speed of the rotating fixed platform is a second preset rotation speed V2; When D2<D, the acquisition module determines that the rotation speed of the rotating fixed platform is a third preset rotation speed V3; Among them, V1<V2<V3.

3. The drill bit detection system for an electric-controlled drilling rig according to claim 1, characterized in that: When the acquisition module determines whether the surface of the drill bit to be detected is damaged according to the end face data, it includes: The acquisition module obtains the height difference ΔH between the highest point and the lowest point of the end face according to the end face data, compares the height difference ΔH with a preset difference threshold ΔH0, and determines whether the surface of the drill bit to be detected is damaged according to the comparison result; specifically: When ΔH<ΔH0, the acquisition module determines that there is no damage on the surface of the drill bit to be detected; When ΔH≥ΔH0, the acquisition module determines that there is damage on the surface of the drill bit to be detected.

4. The drill bit detection system for an electric-controlled drilling rig according to claim 3, characterized in that: When the acquisition module judges whether the roundness of the cylindrical tail is qualified according to the multiple groups of diameter sizes of the same parallel light measurement unit within the first preset time period, it includes: The acquisition module obtains the diameter difference ΔD between the maximum diameter size and the minimum diameter size according to the multiple groups of diameter sizes, and compares the diameter difference ΔD with the preset diameter difference threshold ΔD0, and determines whether the roundness of the cylindrical tail is qualified according to the comparison result; specifically: When ΔD<ΔD0, the acquisition module determines that the roundness of the cylindrical tail is qualified; When ΔD≥ΔD0, the acquisition module determines that the roundness of the cylindrical tail is unqualified.

5. The drill bit detection system for an electric-controlled drilling rig according to claim 4, characterized in that: When the judging module judges whether the straightness of the drill to be inspected is qualified according to the second image data, it includes: The judgment module obtains diameter data of different positions of the cylindrical tail according to the second image data, obtains the center of different parts of the cylindrical tail according to the diameter data, connects the center of the circle to form a fitting straight line, and compares the fitting straight line with the horizontal line to determine whether the straightness of the drill bit to be tested is qualified; specifically: When the deviation angle between the fitting straight line and the horizontal line is within the deviation threshold, the judgment module determines that the straightness of the drill bit to be tested is qualified; When the deviation angle between the fitting straight line and the horizontal line is greater than or equal to a deviation threshold, the judgment module determines that the straightness of the drill to be tested is unqualified.

6. The drill bit detection system for an electric-controlled drilling rig according to claim 5, characterized in that: When the processing module determines the quality grade of the drill to be inspected according to the roundness data and the straightness data, it includes: The processing module obtains an appearance inspection score according to the roundness data and the straightness data, and determines a quality grade of the drill bit to be inspected according to the appearance inspection score; The appearance inspection score is calculated by the following formula: Among them, G represents the appearance detection score, ΔD0 represents the diameter difference threshold, ΔD represents the diameter difference, J0 represents the deviation angle of the fitting line, Jmax represents the deviation threshold, α and β are weights, and α+β=1.

7. The drill bit detection system for an electric-controlled drilling rig according to claim 6, characterized in that: When the processing module determines the quality grade of the drill bit to be inspected according to the appearance inspection score, it includes: The processing module compares the appearance inspection score G with the first preset appearance inspection score G1 and the second preset appearance inspection score G2 respectively, G1<G2, and determines the quality grade of the drill bit to be inspected according to the comparison result; specifically: When G≤G1, the processing module determines that the quality grade of the drill bit to be inspected is a first preset quality grade Q1; When G1<G≤G2, the processing module determines that the quality grade of the drill bit to be inspected is a second preset quality grade Q2; When G2<G, the processing module determines that the quality level of the drill bit to be inspected is a third preset quality level Q3; The first preset quality grade Q1 indicates that the quality of the drill bit to be detected is higher than the second preset quality grade Q2, and the second preset quality grade Q2 indicates that the quality of the drill bit to be detected is higher than the third preset quality grade Q3.

8. The drill bit detection system for an electric-controlled drilling rig according to claim 7, characterized in that: When the processing module determines that the quality level of the drill bit to be detected is the i-th preset quality level Qi, i=1, 2, 3, the adjustment module determines whether to adjust the quality level according to the echo signal, including: The adjustment module compares the echo amplitude in the echo signal with the preset amplitude Fmax respectively, and determines whether to adjust the quality level according to the comparison result; specifically: When there is an echo amplitude higher than the preset amplitude Fmax, the adjustment module determines that there is a defect inside the drill bit to be inspected and adjusts the quality level Qi of the drill bit to be inspected; When all the echo amplitudes are lower than the preset amplitude Fmax, the adjustment module determines that there is no defect inside the drill bit to be inspected and does not adjust the quality grade Qi of the drill bit to be inspected.

9. The drill bit detection system for an electric-controlled drilling rig according to claim 8, characterized in that: When the adjustment module adjusts the quality grade Qi of the drill bit to be inspected, it includes: The adjustment module collects the number N of echoes with echo amplitudes higher than the preset amplitude Fmax, compares the number N of echoes with the number threshold Nmax, and adjusts the quality grade Qi of the drill bit to be detected according to the comparison result; specifically: When N≤Nmax, the adjustment module lowers the quality level of the drill bit to be inspected by one level, and maintains the original quality level unchanged when it is the third preset quality level Q3; When N>Nmax, the adjustment module lowers the quality level of the drill bit to be tested by two levels, and maintains it unchanged when the original quality level is the third preset quality level Q3; when the original quality level is the second preset quality level Q2, the quality level is lowered to the third preset quality level Q3.

10. A drill bit detection method for an electric-controlled drilling rig, applied to a drill bit detection system for an electric-controlled drilling rig as claimed in any one of claims 1 to 9, characterized in that: include: Collecting first image data of the parallel light measurement unit, analyzing the first image data to obtain the diameter size of the cylindrical tail, and determining the rotation speed of the rotating fixed platform according to the diameter size; After the rotation speed is determined, end surface data of the drill to be detected is acquired according to a plurality of sets of image data of the same parallel light measuring unit within a first preset period of time, and whether the surface of the drill to be detected is damaged is determined according to the end surface data; When it is determined that there is no damage on the surface of the drill bit to be inspected, judging whether the roundness of the cylindrical tail is qualified according to multiple groups of diameter dimensions of the same parallel light measuring unit within a first preset time period; When it is determined that the roundness of the cylindrical tail is qualified, collecting second image data of the same moment and different from the parallel light measurement unit, and judging whether the straightness of the drill to be inspected is qualified according to the second image data; When it is determined that the straightness of the drill bit to be inspected is qualified, determining the quality grade of the drill bit to be inspected according to the roundness data and the straightness data; After the quality grade of the drill bit to be tested is determined, the echo signal of the ultrasonic testing unit is collected, and it is determined whether to adjust the quality grade according to the echo signal.

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