Special-shaped copper material bending detection device and detection method thereof

Abstract

The invention discloses a special-shaped copper material bending detection device and a detection method thereof, and belongs to the technical field of profile detection. Comprising a working frame, a detection assembly arranged on the working frame and a transportation assembly arranged on one side of the working frame, the transportation assembly continuously transports the special-shaped copper material to pass through the detection assembly at a constant speed, and the detection assembly detects and processes the bending condition of the special-shaped copper material and then outputs a result. The conveying assembly comprises a conveying frame, a plurality of rotating shafts rotationally connected to the conveying frame and conveying rollers coaxially and fixedly connected with the rotating shafts, and the ends, away from the conveying rollers, of the rotating shafts penetrate through the conveying frame and then are fixedly connected with chain wheels. The detection assembly is adjusted to adapt to the size of the special-shaped copper material, data zeroing, continuous transportation and copper material detection are completed, distance data are intercepted through a sliding window algorithm, bending is judged through a variance algorithm, the standard variance is about 0.1, if the variance exceeds the standard, bending is detected, cost is low, and efficient detection is achieved through a cheap sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of profile detection, and in particular to a device and method for detecting bending of special-shaped copper materials. Background Art

[0002] Bending inspection of special-shaped copper materials is a critical quality control process, which is specifically designed to ensure that the copper material maintains the required geometric accuracy and structural integrity during processing and manufacturing. This inspection process usually involves high-precision measuring equipment and technology to identify any deviations in the length, width, thickness and curvature of the copper material. The use of automated optical inspection systems can quickly capture images of copper materials and use advanced image processing algorithms to analyze their shapes to ensure that the curvature of the copper material meets the design specifications.

[0003] During the inspection process, the copper material is placed on a test platform and its degree of bending is measured by laser scanning or contact probe. These measurements are then compared with preset standards to determine if adjustments or rework are needed. In addition, bend inspection may also include stress testing to evaluate the elasticity and toughness of the copper when it is bent.

[0004] Due to the wide application of copper materials in electronics, construction and industry, its bending detection is crucial to ensure the reliability and performance of products. Accurate bending detection can not only reduce material waste and production costs, but also improve the market competitiveness of products and meet customers' demand for high-quality copper materials.

[0005] Therefore, a device and method for detecting bending of special-shaped copper materials are proposed to solve or alleviate the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a bending detection device and a detection method for special-shaped copper materials.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A device for detecting bending of special-shaped copper materials comprises a work frame, a detection component arranged on the work frame, and a transport component arranged on one side of the work frame. The transport component continuously and uniformly transports the special-shaped copper materials through the detection component. The detection component detects and processes the bending conditions in the special-shaped copper materials and then outputs the results.

[0009] Preferably, the transport assembly includes a transport frame, a plurality of rotating shafts rotatably connected to the transport frame, and transport rollers coaxially and fixedly connected to the rotating shafts. The end of the rotating shaft away from the transport roller passes through the transport frame and is fixedly connected to a sprocket. A drive motor is fixedly connected to the transport frame. The drive motor is coaxially connected to one of the rotating shafts, and the plurality of sprockets are connected via chain transmission.

[0010] Preferably, the transport assembly further comprises a frame located between the transport frame and the working frame, a track fixedly connected to the frame, and a plurality of conveying rollers rotatably connected to the track.

[0011] Preferably, the work frame is fixedly connected to a vertically arranged stand, and the detection assembly includes an articulated seat fixedly connected to the work frame, a triangular rod rotatably connected to the articulated seat, a hydraulic cylinder fixedly connected to the stand and inclined, and a connecting rod rotatably connected to the piston end of the hydraulic cylinder, one end of the connecting rod away from the hydraulic cylinder is rotatably connected to the triangular rod, one end of the triangular rod away from the articulated seat is provided with a groove, and a plurality of distance sensors are rotatably connected in the groove.

[0012] Preferably, it also includes a control circuit, the top surface of the working frame is fixedly connected to a horizontally arranged cylinder, the cylinder is connected to an air pipe, the air pipe is connected to a pump body, the piston end of the cylinder is fixedly connected to a marking pen, the input end of the control circuit is coupled to a distance sensor, the output end of the control circuit is coupled to the pump body, and the control circuit controls whether the pump body works or not after judging and processing the data fed back by the distance sensor.

[0013] Preferably, the control circuit comprises

[0014] A signal processing circuit, wherein the input end of the signal processing circuit is coupled to the output ends of the plurality of distance sensors, and the signal processing circuit receives the distance signal, amplifies it, stabilizes it, filters it, and then outputs the processed distance signal;

[0015] A digital-to-analog conversion circuit, wherein an input end of the digital-to-analog conversion circuit is coupled to an output end of the signal processor, and the digital-to-analog conversion circuit performs digital-to-analog conversion after receiving the processed distance signal;

[0016] A processor, wherein an input terminal of the processor is coupled to an output terminal of the digital-to-analog conversion circuit, and the processor receives the converted distance signal and outputs a control signal after processing;

[0017] A motor driver, wherein the output end of the processor is coupled to the pump body through the motor driver, and the motor driver controls whether the pump body works or not in response to a control signal.

[0018] Preferably, the signal processing circuit includes an operational amplifier circuit, a voltage stabilization circuit, and a filter circuit, and the digital-to-analog conversion circuit includes a digital-to-analog converter.

[0019] The present invention also provides a detection method of a special-shaped copper material bending detection device, which is used to detect special-shaped copper materials, comprising the following steps:

[0020] Calibrate in advance, adjust the probe positions of several distance sensors according to the height of the special-shaped copper material, and calibrate the various distances between the probes of several distance sensors to the absolute horizontal plane and then set them to zero;

[0021] Data collection: transporting a number of special-shaped copper materials along their length direction, and allowing a number of distance sensor probes to detect the distance data from the special-shaped copper materials to form each distance data group;

[0022] The sliding window algorithm is used to intercept each distance data group of each special-shaped copper material, and the distance variance on the time axis is calculated by the variance algorithm for the intercepted distance data. The distance variance on the time axis is compared with the marked variance. If the distance variance is greater than the standard variance, it means that there is a bending section on the special-shaped copper material, otherwise it means that there is no bending section on the special-shaped copper material.

[0023] Intercepting the time axis with the bending segment and outputting the control signal through the processor;

[0024] The motor driver controls the pump body to rotate forward in response to the control signal, so that the cylinder pushes out the marking pen to be coated on the special-shaped copper material. The motor driver controls the pump body to rotate reversely after the control signal disappears.

[0025] Preferably, the variance algorithm includes X={x1, x2, ..., x N}, its mean μ is: Variance σ 2 for: Where N is the number of data points, x i is the ith data point and μ is the mean of the data set.

[0026] Preferably, comparing the distance variance on the time axis with the annotation variance comprises the following steps:

[0027] The distance variance calculated for each window is compared with the preset standard variance;

[0028] If σ 2 > standard deviation, it is considered that there is a bending section on the special-shaped copper material;

[0029] If σ 2 ≤ standard deviation, it is considered that there is no bending section on the special-shaped copper material.

[0030] The present invention has the following beneficial effects:

[0031] The present invention realizes the continuous transportation and detection of a single special-shaped copper material. During the transportation process, the detection component will be dynamically adjusted according to the volume characteristics of the copper material to ensure the accuracy of the data and complete the initial zeroing setting. Subsequently, the transportation system continues to transport the copper material to the detection area, and the detection component collects distance signals in real time. These signals are accurately intercepted by the sliding window algorithm to generate distance data for each copper material. The variance algorithm is used to analyze these data to identify whether the copper material is bent. The standard variance threshold is set to 0.1. Once the measurement variance exceeds this value, it is determined that the copper material is bent; if it does not exceed this value, the copper material is considered to be straight.

[0032] This method uses cost-effective distance sensors to economically detect the curvature of special-shaped copper materials, which not only meets the needs of quality control but also reduces the cost of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a structural schematic diagram of the present invention;

[0035] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0036] Figure 3 is a structural block diagram of the control circuit in the present invention;

[0037] Figure 4 It is a structural block diagram of the detection method in the present invention.

[0038] 1. Transport rack; 101. Transport roller; 2. Rack; 201. Track; 202. Transport roller; 3. Work rack; 301. Stand; 302. Cylinder; 303. Marking pen; 304. Articulated seat; 305. Triangular rod; 3051. Groove; 306. Distance sensor; 307. Hydraulic cylinder; 308. Connecting rod; 401. Signal processing circuit; 402. Digital-to-analog conversion circuit; 403. Processor; 404. Motor driver; 405. Pump body. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the invention is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] A device for detecting bending of special-shaped copper materials, such as Figure 1As shown, it includes a work frame 3, a detection component arranged on the work frame 3, and a transportation component arranged on one side of the work frame 3. The transportation component continuously and uniformly transports the special-shaped copper material through the detection component. The detection component detects the bending condition of the special-shaped copper material, processes it, and then outputs the result.

[0046] The transport assembly includes a transport frame 1, a plurality of rotating shafts rotatably connected to the transport frame 1, transport rollers 101 coaxially and fixedly connected to the rotating shafts, a frame 2 located between the transport frame 1 and a working frame 3, a track 201 fixedly connected to the frame 2, and a plurality of conveying rollers 202 rotatably connected to the track 201. The end of the rotating shaft away from the transport roller 101 passes through the transport frame 1 and is fixedly connected to a sprocket. A driving motor is fixedly connected to the transport frame 1. The driving motor is coaxially connected to one of the rotating shafts, and the plurality of sprockets are connected through chain transmission.

[0047] like Figure 2 As shown, a vertically arranged stand 301 is fixedly connected to the work frame 3, and the detection component includes an articulated seat 304 fixedly connected to the work frame 3, a triangular rod 305 rotatably connected in the articulated seat 304, a hydraulic cylinder 307 fixedly connected to the stand 301 and tilted, and a connecting rod 308 rotatably connected to the piston end of the hydraulic cylinder 307, the end of the connecting rod 308 away from the hydraulic cylinder 307 is rotatably connected to the triangular rod 305, the end of the triangular rod 305 away from the articulated seat 304 is provided with a groove 3051, and a plurality of distance sensors 306 are rotatably connected in the groove 3051.

[0048] It also includes a control circuit. A horizontally arranged cylinder 302 is fixedly connected to the top surface of the working frame 3. An air pipe is connected inside the cylinder 302. The air pipe is connected to a pump body 405. A marking pen 303 is fixedly connected to the piston end of the cylinder 302. The input end of the control circuit is coupled to the distance sensor 306. The output end of the control circuit is coupled to the pump body 405. The control circuit controls whether the pump body 405 works or not after judging and processing the data fed back by the distance sensor 306.

[0049] like Figure 3As shown, the control circuit includes a signal processing circuit 401, the input end of the signal processing circuit 401 is coupled to the output end of the plurality of distance sensors 306, the signal processing circuit 401 receives the distance signal and then amplifies, stabilizes, filters and outputs the processed distance signal; a digital-to-analog conversion circuit 402, the input end of the digital-to-analog conversion circuit 402 is coupled to the output end of the signal processor 403, the digital-to-analog conversion circuit 402 receives the processed distance signal and performs digital-to-analog conversion; a processor 403, the input end of the processor 403 is coupled to the output end of the digital-to-analog conversion circuit 402, the processor 403 receives the converted distance signal and outputs a control signal after processing; a motor driver 404, the output end of the processor 403 is coupled to the pump body 405 through the motor driver 404, the motor driver 404 controls whether the pump body 405 works or not in response to the control signal, the signal processing circuit 401 includes an operational amplifier circuit, a voltage stabilizing circuit, and a filtering circuit, and the digital-to-analog conversion circuit 402 includes a digital-to-analog converter.

[0050] The present invention also provides a detection method of a special-shaped copper material bending detection device, which is used to detect special-shaped copper materials, such as Figure 4 As shown, the following steps are included:

[0051] Calibrate in advance, adjust the probe positions of the plurality of distance sensors 306 according to the height of the special-shaped copper material, and calibrate the various distances between the probes of the plurality of distance sensors 306 and the absolute horizontal plane and then set them to zero;

[0052] Data collection: transporting a plurality of special-shaped copper materials along their length direction, and allowing a plurality of distance sensors 306 to detect the distance data from the special-shaped copper materials to form each distance data group;

[0053] The sliding window algorithm is used to intercept the distance data groups of various special-shaped copper materials, and the distance variance on the time axis is calculated by the variance algorithm for the intercepted distance data. The variance algorithm includes X = {x1, x2, ..., x N}, its mean μ is: Variance σ 2 for: Where N is the number of data points, x i is the i-th data point, μ is the mean of the data set, and the distance variance on the time axis is compared with the annotation variance. If the distance variance is greater than the standard variance, it means that there is a bending section on the special-shaped copper material, otherwise it means that there is no bending section on the special-shaped copper material. The distance variance on the time axis is compared with the annotation variance, including the following steps:

[0054] The distance variance calculated for each window is compared with the preset standard variance;

[0055] If σ 2> standard deviation, it is considered that there is a bending section on the special-shaped copper material;

[0056] If σ 2 ≤ standard deviation, it is considered that there is no bending section on the special-shaped copper material;

[0057] Intercepting the time axis with the bending segment and outputting a control signal through the processor 403;

[0058] The motor driver 404 controls the pump body 405 to rotate forward in response to the control signal, so that the cylinder 302 pushes out the marking pen 303 to be coated on the special-shaped copper material. The motor driver 404 controls the pump body 405 to rotate reversely after the control signal disappears.

[0059] The present invention can continuously transport a single special-shaped copper material, and when transporting through the detection component, the detection component is adjusted according to the volume of the special-shaped copper material, and then the data is zeroed. Then the transportation component continues to transport the special-shaped copper material. During the transportation process, the detection component continuously detects, and uses a sliding window algorithm to intercept the distance data of a single special-shaped copper material using the continuously detected distance signal. After interception, the variance algorithm is used to determine whether there is a bend on the special-shaped copper material. In fact, the standard variance data is about 0.1. After the calculated distance variance is greater than the standard variance, it is determined that a bend exists, otherwise it does not exist. In this way, the curvature of the special-shaped copper material can be detected at a relatively low cost using a relatively cheap sensor such as the distance sensor 306, so as to achieve the desired effect and reduce the cost of detecting the special-shaped copper material.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for detecting bending of special-shaped copper materials, characterized in that: The invention comprises a working frame (3), a detection component arranged on the working frame (3), and a transport component arranged on one side of the working frame (3); the transport component continuously and uniformly transports the special-shaped copper material through the detection component; the detection component detects the bending condition of the special-shaped copper material, processes it, and then outputs the result.

2. The device for detecting bending of special-shaped copper materials according to claim 1, characterized in that: The transport assembly comprises a transport frame (1), a plurality of rotating shafts rotatably connected to the transport frame (1), and a transport roller (101) coaxially and fixedly connected to the rotating shafts; one end of the rotating shaft away from the transport roller (101) passes through the transport frame (1) and is fixedly connected to a sprocket; a drive motor is fixedly connected to the transport frame (1); the drive motor is coaxially connected to one of the rotating shafts; and the plurality of sprockets are connected via chain transmission.

3. The device for detecting bending of special-shaped copper material according to claim 2, characterized in that: The transport assembly further comprises a frame (2) located between the transport frame (1) and the working frame (3), a track (201) fixedly connected to the frame (2), and a plurality of transport rollers (202) rotatably connected to the track (201).

4. The device for detecting bending of special-shaped copper material according to claim 1, characterized in that: The working frame (3) is fixedly connected to a vertically arranged stand (301); the detection assembly comprises an articulated seat (304) fixedly connected to the working frame (3), a triangular rod (305) rotatably connected to the articulated seat (304), a hydraulic cylinder (307) fixedly connected to the stand (301) and tilted, and a connecting rod (308) rotatably connected to the piston end of the hydraulic cylinder (307); one end of the connecting rod (308) away from the hydraulic cylinder (307) is rotatably connected to the triangular rod (305); one end of the triangular rod (305) away from the articulated seat (304) is provided with a groove (3051); a plurality of distance sensors (306) are rotatably connected in the groove (3051).

5. The device for detecting bending of special-shaped copper material according to claim 4, characterized in that: The apparatus also comprises a control circuit, wherein a horizontally arranged air cylinder (302) is fixedly connected to the top surface of the working frame (3), an air pipe is connected inside the air cylinder (302), a pump body (405) is connected to the air pipe, a marking pen (303) is fixedly connected to the piston end of the air cylinder (302), an input end of the control circuit is coupled to a distance sensor (306), an output end of the control circuit is coupled to the pump body (405), and the control circuit controls whether the pump body (405) works or not after judging and processing the data fed back by the distance sensor (306).

6. The device for detecting bending of special-shaped copper material according to claim 5, characterized in that: The control circuit includes A signal processing circuit (401), wherein an input end of the signal processing circuit (401) is coupled to output ends of a plurality of distance sensors (306), and the signal processing circuit (401) receives a distance signal, amplifies it, stabilizes it, filters it, and then outputs a processed distance signal; A digital-to-analog conversion circuit (402), wherein an input end of the digital-to-analog conversion circuit (402) is coupled to an output end of the signal processor (403), and the digital-to-analog conversion circuit (402) performs digital-to-analog conversion after receiving the processed distance signal; A processor (403), wherein an input end of the processor (403) is coupled to an output end of the digital-to-analog conversion circuit (402), and the processor (403) receives the converted distance signal and outputs a control signal after processing; A motor driver (404), wherein the output end of the processor (403) is coupled to the pump body (405) via the motor driver (404), and the motor driver (404) controls whether the pump body (405) works or not in response to a control signal.

7. The device for detecting bending of special-shaped copper material according to claim 6, characterized in that: The signal processing circuit (401) comprises an operational amplifier circuit, a voltage stabilizing circuit, and a filter circuit, and the digital-to-analog conversion circuit (402) comprises a digital-to-analog converter.

8. A detection method of a bending detection device for special-shaped copper materials, used for detecting special-shaped copper materials, characterized in that: The following steps are included: Calibrate in advance, adjust the probe positions of a plurality of distance sensors (306) according to the height of the special-shaped copper material, and calibrate the various distances between the probes of the plurality of distance sensors (306) and the absolute horizontal plane and then adjust the zero settings; Data collection, transporting a plurality of special-shaped copper materials along their length direction, and allowing a plurality of distance sensors (306) to detect the distance data from the special-shaped copper materials to form each distance data group; The sliding window algorithm is used to intercept each distance data group of each special-shaped copper material, and the distance variance on the time axis is calculated by the variance algorithm for the intercepted distance data. The distance variance on the time axis is compared with the marked variance. If the distance variance is greater than the standard variance, it means that there is a bending section on the special-shaped copper material, otherwise it means that there is no bending section on the special-shaped copper material. intercepting the time axis where the bending segment exists and outputting a control signal through a processor (403); The motor driver (404) controls the pump body (405) to rotate forward in response to the control signal, so that the cylinder (302) pushes out the marking pen (303) to be coated on the special-shaped copper material. The motor driver (404) controls the pump body (405) to rotate reversely after the control signal disappears.

9. The detection method of the bending detection device for special-shaped copper materials according to claim 8, characterized in that: The variance algorithm includes X={x1, x2, ..., x N }, its mean μ is: Variance σ 2 for: Where N is the number of data points, x i is the ith data point and μ is the mean of the data set.

10. The detection method of the bending detection device of special-shaped copper material according to claim 8, characterized in that: The step of comparing the distance variance on the time axis with the annotation variance comprises the following steps: The distance variance calculated for each window is compared with the preset standard variance; If σ 2 > standard deviation, it is considered that there is a bending section on the special-shaped copper material; If σ 2 ≤ standard deviation, it is considered that there is no bending section on the special-shaped copper material.

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