Transformer feeding monitoring method based on transformer feeding device
By acquiring image status parameters through a transformer feeding device and adjusting the feeding posture, the problem of low production efficiency caused by manual flipping is solved, and efficient visual inspection of transformers is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUIZHOU YINUO PRECISION ELECTRONICS CO LTD
- Filing Date
- 2023-12-01
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, transformers require manual rotation and adjustment during production to fit the defect detection station, resulting in low production efficiency.
A transformer feeding device is used to flip and feed the transformer. By acquiring an image of the transformer's front end, the device obtains status parameters, adjusts the feeding posture to match the preset state, and sends a feeding reversal signal to achieve the correct visual detection posture.
This improves the production efficiency of transformers and ensures that transformers are placed in the correct position on the feeding conveyor belt, facilitating visual inspection.
Smart Images

Figure CN117602314B_ABST
Abstract
Description
Transformer feeding monitoring method based on transformer feeding device Technical Field
[0001] This disclosure relates to the field of transformer technology, and in particular to a transformer feeding monitoring method based on a transformer feeding device. Background Technology
[0002] As an important electronic component in production and daily life, transformers play a crucial role in voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization. Electronic transformers are also the basic components of mobile electronic devices and are widely used in industries, agriculture, transportation, urban communities, and other fields. The demand for electronic transformers is increasing year by year, and in order to meet this demand, automated production methods are currently being adopted to improve efficiency.
[0003] In daily production, due to the complex shape of electronic transformers, the transformers need to be manufactured and defect-detected during the production process. When transferring the transformer from the front end of manufacturing to the defect detection station, it is often necessary to flip and adjust the surface of the transformer to adapt to the defect detection station. The current method usually involves flipping, which requires manual operation, resulting in low production efficiency of transformers. Summary of the Invention
[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide an effective method for monitoring transformer feeding to improve production efficiency.
[0005] The purpose of this disclosure is achieved through the following technical solution:
[0006] A transformer feeding monitoring method based on a transformer feeding device includes: using a transformer feeding device to flip and feed a transformer, wherein the transformer feeding device includes: a feeding base and a feeding assembly; the feeding assembly includes a feeding mounting bracket, a feeding conveyor belt and a feeding rotating component, the feeding mounting bracket is connected to the feeding base, the feeding conveyor belt is disposed on the feeding base and is used to transport the transformer, and the feeding rotating component is disposed on the feeding mounting bracket and is used to transfer the transformer onto the feeding conveyor belt;
[0007] The transformer feeding monitoring method includes:
[0008] Obtain an image of the transformer's front end being placed;
[0009] The transformer resting state parameters are obtained based on the front-end resting image;
[0010] The transformer standby state parameters and the preset standby state parameters are subjected to standby reversal processing to obtain the transformer standby reversal difference component;
[0011] The transformer load adjustment signal is sent to the transformer optical inspection system according to the transformer slip differential component, so as to adjust the loading and visual inspection placement posture of the transformer.
[0012] In one embodiment, acquiring the front-end placement image of the transformer includes: acquiring a vertical image of the front-end pins of the transformer.
[0013] In one embodiment, obtaining transformer resting state parameters based on the front-end resting image includes: obtaining the front-end pin sag based on the front-end pin vertical image.
[0014] In one embodiment, the step of performing a resting-rotation process on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting-rotation difference component includes: calculating the difference between the sag of the front end pin and the preset sag to obtain the transformer resting rotation sag.
[0015] In one embodiment, the step of sending a loading adjustment signal to the transformer optical inspection system based on the transformer slip component to adjust the loading and visual inspection placement posture of the transformer includes: detecting whether the transformer slip rotation sag matches a preset rotation sag; when the transformer slip rotation sag matches the preset rotation sag, sending a loading flip signal to the transformer optical inspection system to flip the transformer and place it on the loading conveyor belt.
[0016] In one embodiment, the step of detecting whether the transformer rest rotational droop matches the preset rotational droop further includes: when the transformer rest rotational droop does not match the preset rotational droop, sending a loading and rotation signal to the transformer optical detection system so that the transformer is moved and rotated to rest on the loading conveyor belt.
[0017] In one embodiment, acquiring the front-end placement image of the transformer includes: acquiring the front-end pin descent image of the transformer.
[0018] In one embodiment, obtaining transformer resting state parameters based on the front-end resting image includes: obtaining the front-end pin verticality number based on the front-end pin verticality image.
[0019] In one embodiment, the step of performing a resting and reversing process on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting and reversing difference component includes: calculating the difference between the vertical number of the front end pins and the preset drooping number to obtain the transformer resting and reversing pin number difference.
[0020] In one embodiment, the step of sending a loading reversal signal to the transformer optical inspection system based on the transformer slip difference component to adjust the loading visual inspection placement posture of the transformer includes: detecting whether the transformer slip rotation needle count difference matches a preset rotation needle count difference; when the transformer slip rotation needle count difference matches the preset rotation needle count difference, sending a loading reversal signal to the transformer optical inspection system to cause the transformer to be flipped and placed on the loading conveyor belt.
[0021] Compared with the prior art, this disclosure has at least the following advantages:
[0022] By acquiring transformer placement parameters, the current loading and placement status of the transformer is collected. Then, the transformer placement parameters are compared with preset placement parameters to obtain the degree of difference in loading and placement posture between the two. Finally, based on the difference in loading and placement posture, a loading reversal signal is sent to adjust the posture of the transformer on the loading conveyor belt, so that the transformer is placed on the loading conveyor belt in the correct visual inspection posture, thereby facilitating the visual inspection of the transformer and effectively improving the production efficiency of the transformer. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 is a flowchart of a transformer feeding monitoring method in one embodiment;
[0025] Figure 2 is a schematic diagram of a transformer feeding device in one embodiment;
[0026] Figure 3 is an enlarged schematic diagram of the transformer feeding device shown in Figure 2 at point A1. Detailed Implementation
[0027] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] This disclosure relates to a transformer loading monitoring method. In one embodiment, the transformer loading monitoring method includes acquiring a front-end placement image of the transformer; acquiring transformer placement state parameters based on the front-end placement image; performing placement reversal processing on the transformer placement state parameters and preset placement state parameters to obtain a transformer placement reversal difference component; and sending a loading reversal signal to the transformer optical inspection system based on the transformer placement reversal difference component to adjust the loading visual inspection placement posture of the transformer. By acquiring the transformer placement state parameters, the current loading placement status of the transformer is collected. Then, the transformer placement state parameters and preset placement state parameters are processed to obtain the degree of difference in loading placement posture between the two. Finally, based on the difference in loading placement posture, a corresponding loading reversal signal is sent to adjust the posture of the transformer placed on the loading conveyor belt, so that the transformer is placed on the loading conveyor belt in the correct visual inspection posture, thereby facilitating the visual inspection of the transformer and effectively improving the production efficiency of the transformer.
[0031] Please refer to Figure 1, which is a flowchart of a transformer loading monitoring method according to an embodiment of this disclosure. The transformer defect visual detection method includes some or all of the following steps. This disclosure also relates to a transformer loading device. Please refer to Figure 2. The transformer loading device 10 includes a loading base 100 and a loading assembly 200. Please also refer to Figure 3. The loading assembly 200 includes a loading mounting bracket 210, a loading conveyor belt 220, and a loading rotating component 230. The loading mounting bracket 210 is connected to the loading base 100. The loading conveyor belt 220 is disposed on the loading base 100 and is used to transport transformers. The loading rotating component 230 is disposed on the loading mounting bracket 210 and is used to transfer transformers onto the loading conveyor belt 220.
[0032] The transformer feeding monitoring method includes:
[0033] S100: Obtain the front-end image of the transformer.
[0034] In this embodiment, the front-end placement image is the image of the transformer being placed before loading; that is, the front-end placement image is the image of the transformer before loading, specifically the image of the transformer's placement posture before being placed on the loading conveyor belt 220. By acquiring this front-end placement image, it is easy to determine the transformer's conveying posture before being placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement before visual inspection, and further facilitating the determination of the transformer's placement posture before being transferred to the loading conveyor belt 220.
[0035] S200: Obtain transformer stand-up state parameters based on the front-end stand-up image.
[0036] In this embodiment, the transformer placement state parameters are obtained by sampling from the front-end placement image, which is the image of the transformer before loading, specifically the image of the transformer's placement posture before being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transformer's conveying posture before being placed on the loading conveyor belt 220, thus facilitating the determination of the transformer's placement status before visual inspection, and further facilitating the determination of the transformer's placement status before being transferred to the loading conveyor belt 220. By acquiring the transformer's posture features in the front-end placement image, the placement state of the transformer before being transferred to the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading state.
[0037] S300: Perform a resting-direction process on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting-direction difference component.
[0038] In this embodiment, the transformer placement state parameters are obtained by sampling from the front-end placement image, which is the image of the transformer before loading, specifically the image of the transformer's placement posture before being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transformer's conveying posture before being placed on the loading conveyor belt 220, thus facilitating the determination of the transformer's placement status before visual inspection, and further facilitating the determination of the transformer's placement status before being transferred to the loading conveyor belt 220. By acquiring the transformer's posture features in the front-end placement image, the placement state of the transformer before being transferred to the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading state. The preset placement state parameter is the standard placement image of the transformer before loading, that is, the preset placement state parameter is the reference placement image of the transformer before loading, and also the specified placement posture image of the transformer before it is placed on the loading conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the current loading placement posture of the transformer and the standard posture, thereby facilitating the determination of the degree of posture difference of the transformer before it is placed on the loading conveyor belt 220.
[0039] S400: Send a loading adjustment signal to the transformer optical inspection system according to the transformer slip differential component to adjust the loading and visual inspection placement posture of the transformer.
[0040] In this embodiment, the transformer slip component is obtained based on the transformer placement state parameters and the preset placement state parameters. The transformer placement state parameters are sampled from the front-end placement image, which is the image of the transformer being placed before loading, i.e., the image of the transformer's placement posture before being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transformer's conveying posture before being placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement status before visual inspection, and further facilitating the determination of the transformer's placement status before being transferred to the loading conveyor belt 220. By acquiring the transformer posture features in the front-end placement image, the placement state of the transformer before being transferred to the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading state. The preset placement state parameter is the standard placement image of the transformer before loading, that is, the preset placement state parameter is the reference placement image of the transformer before loading, and also the specified placement posture image of the transformer before being placed on the loading conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the current loading posture and the standard posture of the transformer, thereby facilitating the determination of the degree of posture difference of the transformer before being placed on the loading conveyor belt 220. After determining the transformer placement difference component, the degree of posture difference of the transformer before loading can be obtained, facilitating the determination of the difference between the transformer's loading posture and the standard loading posture. By sending a loading reversal signal to the transformer optical inspection system, the loading posture of the transformer is adjusted so that the transformer is placed in a posture matching the loading conveyor belt 220, thereby facilitating visual inspection of the transformer's surface defects, effectively improving the visual inspection efficiency of the transformer, and thus effectively improving the production efficiency of the transformer.
[0041] In the above embodiment, the current material placement of the transformer is collected by acquiring the transformer placement status parameters. Then, the transformer placement status parameters are compared with the preset placement status parameters to obtain the degree of difference in the material placement posture between the two. Finally, according to the difference in the material placement posture, a corresponding material reversal signal is sent to adjust the posture of the transformer placed on the material conveyor belt 220, so that the transformer is placed on the material conveyor belt 220 in the correct visual inspection posture, thereby facilitating the visual inspection of the transformer and effectively improving the production efficiency of the transformer.
[0042] In one embodiment, acquiring the front-end placement image of the transformer includes: acquiring a vertical image of the front-end pins of the transformer. In this embodiment, the front-end placement image is a loading and placement image of the transformer, that is, the front-end placement image is a placement image of the transformer before loading, or the placement posture image of the transformer before it is placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the loading conveyor belt 220, thereby facilitating the determination of the transmission placement status of the transformer before visual inspection, and further facilitating the determination of the placement status of the transformer before it is transferred to the loading conveyor belt 220. The front-end placement image includes a vertical image of the front-end pins of the transformer, which is an image showing the vertical direction of the transformer pins, that is, the vertical image of the front-end pins of the transformer before it is transferred to the loading conveyor belt 220, and the vertical image of the front-end pins corresponds to the vertical position of the transformer pins before it is transferred to the loading conveyor belt 220. By acquiring the vertical image of the front-end pins, it is convenient to acquire the pin placement and arrangement of the transformer at the front end of the feeding conveyor belt 220.
[0043] Further, obtaining the transformer placement status parameters based on the front-end placement image includes: obtaining the front-end pin sag based on the front-end pin vertical image. In this embodiment, the transformer placement status parameters are obtained by upsampling from the front-end placement image, which is the image of the transformer being placed before loading, i.e., the image of the transformer being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement status before visual inspection, and further facilitating the determination of the transformer's placement status before it is transferred to the loading conveyor belt 220. By acquiring the transformer posture features in the front-end placement image, the placement status of the transformer before it is transferred to the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading status. The front-end placement image includes a vertical image of the transformer's front-end pins. This front-end pin vertical image is an image showing the vertical direction of the transformer's pins; specifically, it represents the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin vertical image corresponds to the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. Acquiring this front-end pin vertical image facilitates the assessment of the pin placement at the front end of the feeding conveyor belt 220. The shape of the pins in the front-end pin vertical image indicates the downward verticality of the transformer's pins, i.e., the sag of the front-end pins, which helps determine the degree of downward verticality of the transformer's pins before transfer.
[0044] Furthermore, the step of performing a rotational processing on the transformer placement state parameters and preset placement state parameters to obtain the transformer rotational difference component includes: calculating the difference between the front-end pin sag and the preset sag to obtain the transformer placement rotational sag. In this embodiment, the transformer placement state parameters are obtained by sampling from the front-end placement image, which is the image of the transformer being placed before loading, i.e., the image of the transformer being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement status before visual inspection, and further facilitating the determination of the transformer's placement status before it is transferred to the loading conveyor belt 220. By acquiring the transformer's posture features from the front-end placement image, the placement state of the transformer before it is conveyed onto the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading state. The preset placement state parameter is the standard loading placement image of the transformer, that is, the preset placement state parameter is the reference placement image of the transformer before loading, or the specified placement posture image of the transformer before it is placed on the loading conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the transformer's current loading placement posture and the standard posture, thereby facilitating the determination of the degree of posture difference of the transformer before it is placed on the loading conveyor belt 220. The front-end placement image includes a vertical image of the transformer's front-end pins. This front-end pin vertical image is an image showing the vertical direction of the transformer's pins; specifically, it represents the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin vertical image corresponds to the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. Acquiring this front-end pin vertical image facilitates the assessment of the pin placement at the front end of the feeding conveyor belt 220. The shape of the pins in the front-end pin vertical image indicates the downward verticality of the transformer's pins, i.e., the sag of the front-end pins, which helps determine the degree of downward verticality of the transformer's pins before transfer. By calculating the difference between the sag of the front-end pin and the preset sag, the current downward verticality of the pin of the transformer before transfer can be determined. This facilitates the determination of the difference between the downward verticality of the pin of the transformer before transfer and the standard sag, thereby facilitating the determination of the verticality difference of the pin of the transformer before transfer.
[0045] Furthermore, the step of sending a loading adjustment signal to the transformer optical inspection system based on the transformer slip difference component to adjust the loading visual inspection placement posture of the transformer includes: detecting whether the transformer placement rotational sag matches a preset rotational sag; when the transformer placement rotational sag matches the preset rotational sag, sending a loading flip signal to the transformer optical inspection system to flip the transformer and place it on the loading conveyor belt 220. In this embodiment, the transformer slip difference component is obtained based on the transformer placement state parameters and the preset placement state parameters. The transformer placement state parameters are obtained by sampling from the front-end placement image, which is the loading placement image of the transformer, that is, the placement image of the transformer before loading, or the placement posture image of the transformer before it is placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the feeding conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement before visual inspection, and further facilitating the determination of the transformer's placement before being transferred to the feeding conveyor belt 220. By acquiring the transformer's posture features in the front-end placement image, the placement state of the transformer before being transferred to the feeding conveyor belt 220 can be determined, facilitating the determination of the transformer's feeding state. The preset placement state parameter is the standard feeding placement image of the transformer, that is, the preset placement state parameter is the reference placement image of the transformer before feeding, and also the specified placement posture image of the transformer before being placed on the feeding conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the transformer's current feeding placement posture and the standard posture, thereby facilitating the determination of the degree of posture difference of the transformer before being placed on the feeding conveyor belt 220. After determining the transformer slip component, the degree of posture difference of the transformer before loading can be obtained, which facilitates the determination of the difference between the loading posture of the transformer and the standard loading posture. By sending a loading adjustment signal to the transformer optical inspection system, the loading posture of the transformer is adjusted so that the transformer is placed in a posture that matches the loading conveyor belt 220, thereby facilitating visual inspection of the surface defects of the transformer, effectively improving the visual inspection efficiency of the transformer, and thus effectively improving the production efficiency of the transformer.The front-end placement image includes a vertical image of the transformer's front-end pins. This front-end pin vertical image is an image showing the vertical direction of the transformer's pins; specifically, it represents the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin vertical image corresponds to the vertical position of the transformer's pins before it is transferred to the feeding conveyor belt 220. Acquiring this front-end pin vertical image facilitates the assessment of the pin placement at the front end of the feeding conveyor belt 220. The shape of the pins in the front-end pin vertical image indicates the downward verticality of the transformer's pins, i.e., the sag of the front-end pins, which helps determine the degree of downward verticality of the transformer's pins before transfer. By calculating the difference between the sag of the front-end pin and the preset sag, the current downward verticality of the transformer pin before transfer is determined. This facilitates the determination of the difference between the downward verticality of the transformer pin before transfer and the standard sag, thereby facilitating the determination of the verticality difference of the transformer pin before transfer. The matching of the transformer placement rotation sag difference with the preset rotation sag difference indicates that the sag direction and angle of the transformer pin conform to the standard, meaning that the sag of the transformer pin before transfer to the feeding conveyor belt 220 is the same as the standard sag, and that the transformer pin is in the correct placement state. At this time, a loading and flipping signal is sent to the transformer optical inspection system to cause the transformer to flip and rest on the loading conveyor belt 220. Specifically, the loading rotating component 230 flips the transformer 180 degrees, changing the vertical direction of the transformer's pins. That is, the transformer's pins are flipped from being vertically facing down to being vertically facing up, making it easier to place the transformer's pins facing upwards. This avoids the transformer's pins coming into contact with the loading conveyor belt 220 and being damaged. Moreover, it also facilitates rapid visual inspection of the transformer, effectively improving the transformer's production efficiency.
[0046] Furthermore, the step of detecting whether the transformer placement rotational droop difference matches the preset rotational droop difference further includes: when the transformer placement rotational droop difference does not match the preset rotational droop difference, sending a loading and rotation signal to the transformer optical detection system to cause the transformer to be moved and rotated onto the loading conveyor belt 220. In this embodiment, the mismatch between the transformer placement rotational droop difference and the preset rotational droop difference indicates that the drooping direction and angle of the transformer pins do not conform to the standard, that is, it indicates that the degree of drooping of the transformer pins before being transferred to the loading conveyor belt 220 differs from the standard drooping degree, and that the transformer pins are in a non-vertical downward state, for example, vertical upward. At this time, a loading and rotation signal is sent to the transformer optical inspection system to cause the transformer to be moved and rotated to rest on the loading conveyor belt 220. Specifically, the loading rotating component 230 performs a loading and rotation operation on the transformer to rotate the transformer 180 degrees in parallel, so that the orientation of the transformer pins remains unchanged, that is, the orientation of the transformer pins is maintained, avoiding the situation where the transformer pins come into contact with the loading conveyor belt 220 and are damaged. Moreover, it can also facilitate rapid visual inspection of the transformer, effectively improving the production efficiency of the transformer.
[0047] In one embodiment, acquiring the front-end placement image of the transformer includes: acquiring an image of the number of pins hanging at the front end of the transformer. In this embodiment, the front-end placement image is an image of the transformer being placed before loading, that is, an image of the transformer's placement posture before it is placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transformer's conveying posture before being placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement before visual inspection, and further facilitating the determination of the transformer's placement posture before being transferred to the loading conveyor belt 220. The front-end placement image includes an image showing the vertical number of the transformer's front-end pins. This image represents the number of pins vertically arranged on the transformer before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin count image corresponds to the vertical number of pins on the transformer before it is transferred to the feeding conveyor belt 220. Acquiring this front-end pin count image facilitates the acquisition of the pin arrangement at the front end of the transformer on the feeding conveyor belt 220.
[0048] Further, obtaining the transformer placement status parameters based on the front-end placement image includes: obtaining the front-end pin verticality number based on the front-end pin verticality image. In this embodiment, the transformer placement status parameters are obtained by upsampling from the front-end placement image, which is the image of the transformer being placed before loading, i.e., the image of the transformer being placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the loading conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement status before visual inspection, and further facilitating the determination of the transformer's placement status before it is transferred to the loading conveyor belt 220. By acquiring the transformer posture features in the front-end placement image, the placement status of the transformer before it is transferred to the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading status. The front-end placement image includes an image showing the vertical number of the transformer's front-end pins. This image represents the number of pins vertically arranged on the transformer before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin count image corresponds to the vertical number of pins on the transformer before it is transferred to the feeding conveyor belt 220. Acquiring this image facilitates the assessment of the pin arrangement at the front end of the transformer on the feeding conveyor belt 220. By analyzing the number of pins in the front-end pin count image, the distribution of the transformer's pins can be determined, i.e., the vertical count of the front-end pins, which helps in identifying the pin distribution of the transformer before transfer.
[0049] Furthermore, the step of performing a resting-rotation processing on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting-rotation difference component includes: calculating the difference between the vertical number of the front-end pins and the preset drooping number to obtain the transformer resting rotation pin number difference. In this embodiment, the transformer resting state parameters are obtained by upsampling from the front-end resting image, which is the image of the transformer being placed before loading, i.e., the image of the transformer being placed before being placed on the loading conveyor belt 220. By acquiring the front-end resting image, it is easy to determine the transmission posture of the transformer before it is placed on the loading conveyor belt 220, thereby facilitating the determination of the transmission resting status of the transformer before visual inspection, and further facilitating the determination of the placement status of the transformer before it is transferred to the loading conveyor belt 220. By acquiring the transformer's posture features from the front-end placement image, the placement state of the transformer before it is conveyed onto the loading conveyor belt 220 can be determined, facilitating the determination of the transformer's loading state. The preset placement state parameter is the standard loading placement image of the transformer, that is, the preset placement state parameter is the reference placement image of the transformer before loading, or the specified placement posture image of the transformer before it is placed on the loading conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the transformer's current loading placement posture and the standard posture, thereby facilitating the determination of the degree of posture difference of the transformer before it is placed on the loading conveyor belt 220. The front-end placement image includes an image showing the vertical number of the transformer's front-end pins. This image represents the number of pins vertically arranged on the transformer before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin count image corresponds to the vertical number of pins on the transformer before it is transferred to the feeding conveyor belt 220. Acquiring this image facilitates the assessment of the pin arrangement at the front end of the transformer on the feeding conveyor belt 220. By analyzing the number of pins in the front-end pin count image, the distribution of the transformer's pins can be determined, i.e., the vertical count of the front-end pins, which helps in identifying the pin distribution of the transformer before transfer. By calculating the difference between the vertical number of the front-end pins and the preset drooping number, the current distribution of the pins of the transformer before transfer can be determined. This facilitates the determination of the difference between the pin distribution of the transformer before transfer and the standard distribution, thereby facilitating the determination of the difference in the number of pins distributed in the transformer before transfer.
[0050] Furthermore, the step of sending a loading adjustment signal to the transformer optical inspection system based on the transformer slip difference component to adjust the loading visual inspection placement posture of the transformer includes: detecting whether the transformer placement rotation needle count difference matches a preset rotation needle count difference; when the transformer placement rotation needle count difference matches the preset rotation needle count difference, sending a loading flip signal to the transformer optical inspection system to flip the transformer and place it on the loading conveyor belt 220. In this embodiment, the transformer slip difference component is obtained based on the transformer placement state parameters and the preset placement state parameters. The transformer placement state parameters are obtained by sampling from the front-end placement image, which is the loading placement image of the transformer, that is, the placement image of the transformer before loading, or the placement posture image of the transformer before it is placed on the loading conveyor belt 220. By acquiring the front-end placement image, it is easy to determine the transmission posture of the transformer before it is placed on the feeding conveyor belt 220, thereby facilitating the determination of the transformer's transmission placement before visual inspection, and further facilitating the determination of the transformer's placement before being transferred to the feeding conveyor belt 220. By acquiring the transformer's posture features in the front-end placement image, the placement state of the transformer before being transferred to the feeding conveyor belt 220 can be determined, facilitating the determination of the transformer's feeding state. The preset placement state parameter is the standard feeding placement image of the transformer, that is, the preset placement state parameter is the reference placement image of the transformer before feeding, and also the specified placement posture image of the transformer before being placed on the feeding conveyor belt 220. The placement reversal processing of the transformer placement state parameter and the preset placement state parameter facilitates the determination of the difference between the transformer's current feeding placement posture and the standard posture, thereby facilitating the determination of the degree of posture difference of the transformer before being placed on the feeding conveyor belt 220. After determining the transformer slip component, the degree of posture difference of the transformer before loading can be obtained, which facilitates the determination of the difference between the loading posture of the transformer and the standard loading posture. By sending a loading adjustment signal to the transformer optical inspection system, the loading posture of the transformer is adjusted so that the transformer is placed in a posture that matches the loading conveyor belt 220, thereby facilitating visual inspection of the surface defects of the transformer, effectively improving the visual inspection efficiency of the transformer, and thus effectively improving the production efficiency of the transformer.The front-end placement image includes an image showing the vertical number of the transformer's front-end pins. This image represents the number of pins vertically arranged on the transformer before it is transferred to the feeding conveyor belt 220. In other words, the front-end pin count image corresponds to the vertical number of pins on the transformer before it is transferred to the feeding conveyor belt 220. Acquiring this image facilitates the assessment of the pin arrangement at the front end of the transformer on the feeding conveyor belt 220. By analyzing the number of pins in the front-end pin count image, the distribution of the transformer's pins can be determined, i.e., the vertical count of the front-end pins, which helps in identifying the pin distribution of the transformer before transfer. The difference between the vertical number of the front-end pins and the preset drooping number determines the current pin distribution of the transformer before transfer. This facilitates the determination of the difference between the pin distribution before transfer and the standard distribution, thereby facilitating the determination of the difference in the number of pins before transfer. The matching of the difference in the number of rotating pins on the transformer resting position with the preset difference in the number of rotating pins indicates that the number and direction of the transformer pins conform to the standard. This means that the pin distribution of the transformer before transfer to the feeding conveyor belt 220 is the same as the standard distribution, and that the transformer pins are in the correct resting position. At this time, a loading and flipping signal is sent to the transformer optical inspection system to cause the transformer to flip and rest on the loading conveyor belt 220. Specifically, the loading rotating component 230 flips the transformer 180 degrees, changing the orientation of the transformer's pins. That is, the pins of the transformer are flipped from their original downward distribution to an upward distribution, making it easier to place the transformer's pins upward and avoiding damage caused by contact between the transformer's pins and the loading conveyor belt 220. Moreover, it also facilitates rapid visual inspection of the transformer, effectively improving the transformer's production efficiency.
[0051] In another embodiment, when the difference in the number of rotating pins of the transformer resting does not match the preset difference in the number of rotating pins, a feeding and rotating signal is sent to the transformer optical detection system so that the transformer is moved and rotated to rest on the feeding conveyor belt 220.
[0052] During the actual material handling process of the transformer, i.e., the transfer from the production station to the inspection station, the loading conveyor belt 220 serves as the transport belt for the inspection station. After the transformer is transferred to the loading conveyor belt 220, the optical detectors at the inspection station visually inspect all sides of the transformer, especially requiring a comprehensive inspection of defects at the transformer's pins. However, as the transformer is transferred by the loading rotating component 230, its placement on the loading conveyor belt 220 is prone to shifting. The optical detectors on both sides of the loading conveyor belt 220 cannot completely capture a single side of the transformer, thus affecting the accuracy of the visual inspection.
[0053] To improve the accuracy of the transformer's orientation after transfer, the process of sending a loading adjustment signal to the transformer optical inspection system based on the transformer slip component to adjust the transformer's loading and visual inspection orientation further includes:
[0054] Obtain the pin spacing of the transformer;
[0055] Detect whether the spacing between the pins is less than a first preset spacing;
[0056] When the spacing between the pins is less than the first preset spacing, a flattening signal is sent to the transformer optical inspection system to flatten the pin surface of the transformer so that the pin surface of the transformer is parallel to the side of the feeding conveyor belt 220.
[0057] In this embodiment, the pin arrangement spacing is the pin spacing of the transformer on the feeding conveyor belt 220, that is, the pin arrangement spacing is the interval distance between each pin after the transformer is transferred to the feeding conveyor belt 220, or the distance between any two adjacent pins on the pin surface after the transformer is transferred to the feeding conveyor belt 220. Specifically, referring to Figure 3, the feeding assembly 200 also includes a ranging probe 240, which is located on the side of the feeding conveyor belt 220 and is used to face the pin surface of the transformer to collect the pin arrangement spacing of the transformer. The first preset spacing is the standard pin spacing of the transformer on the feeding conveyor belt 220, that is, the first preset spacing corresponds to the posture of the transformer after it is correctly placed on the feeding conveyor belt 220. The fact that the pin spacing is less than the first preset spacing indicates that the pin spacing of the transformer pin surface, as collected from the side of the feeding conveyor belt 220, is too small. This indicates that the transformer's placement posture on the feeding conveyor belt 220 is deviated, meaning that the transformer pin surface is not parallel to the side of the feeding conveyor belt 220. In this case, a flattening signal is sent to the transformer optical inspection system to flatten the transformer pin surface, making it parallel to the side of the feeding conveyor belt 220. This adjustment ensures that the transformer maintains the required placement posture for visual inspection on the feeding conveyor belt 220, thereby ensuring that the transformer pin surface is parallel to the side of the feeding conveyor belt 220 and improving the accuracy of the transformer's placement posture after transfer. The transformer has a rectangular structure, as shown in Figure 3. The feeding assembly 200 also includes a flattener 250, which is located on the same side of the feeding conveyor belt 220 as the ranging probe 240. The flattener 250 is used to flatten the pin surface of the transformer.
[0058] In another embodiment, there are two ranging probes and two leveling devices, with the two ranging probes arranged opposite each other and the two leveling devices also arranged opposite each other, in order to improve the parallelism between the transformer and the feeding conveyor belt.
[0059] Further, when the spacing between the pins is less than the first preset spacing, a flattening signal is sent to the transformer optical inspection system to flatten the pin surface of the transformer so that the pin surface of the transformer is parallel to the side of the feeding conveyor belt 220. This further includes:
[0060] Obtain the push-side spacing of the transformer;
[0061] Detect whether the push-edge spacing is greater than or equal to the second preset spacing;
[0062] When the push-edge spacing is greater than or equal to the second preset spacing, a negative suction signal is sent to the transformer optical detection system so that the pin surface of the transformer is attracted to the pusher 250.
[0063] In this embodiment, the pushing edge spacing is the distance between the transformer and the pusher 250, that is, the pushing edge spacing is the boundary distance of the transformer on the feeding conveyor belt 220, and also the boundary distance between the transformer and the side where the pusher 250 of the feeding conveyor belt 220 is located. The fact that the pushing distance is greater than or equal to the second preset distance indicates that the boundary distance between the transformer and the side where the pusher 250 of the feeding conveyor belt 220 is located is too large, that is, the transformer is too close to the other side of the feeding conveyor belt 220. At this time, starting the pusher to push the transformer flat will easily push the transformer off the feeding conveyor belt 220. By sending a negative suction signal to the transformer photodetector system, the pin surface of the transformer is attracted to the pusher 250. Specifically, please refer to Figure 3. The pusher 250 has a negative pressure suction hole 202. The opening of the negative pressure suction hole 202 faces the transformer to provide negative pressure suction force, so as to attract the transformer to the pusher 250, so that the pin surface of the transformer abuts against the pushing surface of the pusher 250, thereby making the transformer parallel to the side of the feeding conveyor belt 220 and preventing the transformer from falling off the feeding conveyor belt 220.
[0064] In another embodiment, when the push-edge spacing is less than the second preset spacing, a push-down signal is sent to the transformer optical detection system to reduce the pushing speed of the pusher and avoid pushing the transformer off due to excessive speed.
[0065] In another embodiment, the transformer optical inspection system includes the transformer feeding device described in the above embodiments.
[0066] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A method for monitoring transformer feeding based on a transformer feeding device, characterized in that, include: A transformer loading device is used to rotate and load transformers. The device includes a loading base and a loading assembly. The loading assembly includes a loading mounting bracket, a loading conveyor belt, and a loading rotating component. The loading mounting bracket is connected to the loading base. The loading conveyor belt is mounted on the loading base and is used to transport the transformer. The loading rotating component is mounted on the loading mounting bracket and is used to transfer the transformer onto the loading conveyor belt. The transformer loading monitoring method includes: acquiring a front-end placement image of the transformer; acquiring transformer placement status parameters based on the front-end placement image; performing placement reversal processing on the transformer placement status parameters and preset placement status parameters to obtain a transformer placement-reversal differential component; and sending a loading reversal signal to the transformer optical inspection system based on the transformer placement-reversal differential component to adjust the transformer loading visual inspection swing. The loading assembly includes a ranging probe and a leveling device. The ranging probe is located on the side of the loading conveyor belt and is used to face the pin surface of the transformer to collect the pin spacing of the transformer. The leveling device is located on the same side of the loading conveyor belt as the ranging probe and is used to level the pin surface of the transformer. The loading adjustment signal is sent to the transformer optical inspection system according to the transformer slip component to adjust the loading visual inspection placement posture of the transformer. The assembly further includes: acquiring the pin spacing of the transformer; detecting whether the pin spacing is less than a first preset spacing; when the pin spacing is less than the first preset spacing, sending a leveling signal to the transformer optical inspection system to level the pin surface of the transformer so that the pin surface of the transformer is parallel to the side of the loading conveyor belt.
2. The transformer feeding monitoring method according to claim 1, characterized in that, The step of obtaining the front-end placement image of the transformer includes: obtaining a vertical image of the front-end pins of the transformer.
3. The transformer feeding monitoring method according to claim 2, characterized in that, The step of obtaining transformer placement status parameters based on the front-end placement image includes: obtaining the front-end pin sag based on the front-end pin vertical image.
4. The transformer feeding monitoring method according to claim 3, characterized in that, The step of performing a resting rotation process on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting rotation difference component includes: calculating the difference between the sag of the front end pin and the preset sag to obtain the transformer resting rotation sag difference.
5. The transformer feeding monitoring method according to claim 4, characterized in that, The step of sending a loading adjustment signal to the transformer optical inspection system based on the transformer slip difference component to adjust the loading and visual inspection placement posture of the transformer includes: detecting whether the transformer slip rotation droop matches a preset rotation droop; when the transformer slip rotation droop matches the preset rotation droop, sending a loading flip signal to the transformer optical inspection system to flip the transformer and place it on the loading conveyor belt.
6. The transformer feeding monitoring method according to claim 5, characterized in that, The step of detecting whether the transformer placement rotational droop matches the preset rotational droop further includes: when the transformer placement rotational droop does not match the preset rotational droop, sending a loading and rotation signal to the transformer optical detection system so that the transformer is moved and rotated to rest on the loading conveyor belt.
7. The transformer feeding monitoring method according to claim 1, characterized in that, The step of obtaining the image of the front end of the transformer includes: obtaining the image of the number of pins at the front end of the transformer.
8. The transformer feeding monitoring method according to claim 7, characterized in that, The step of obtaining transformer resting state parameters based on the front-end resting image includes: obtaining the front-end pin vertical number based on the front-end pin vertical number image.
9. The transformer feeding monitoring method according to claim 8, characterized in that, The step of performing a resting and reversing process on the transformer resting state parameters and the preset resting state parameters to obtain the transformer resting and reversing difference component includes: calculating the difference between the vertical number of the front end pins and the preset drooping number to obtain the transformer resting and reversing pin number difference.
10. The transformer feeding monitoring method according to claim 9, characterized in that, The step of sending a loading reversal signal to the transformer optical inspection system based on the transformer slip difference component to adjust the loading and visual inspection placement posture of the transformer includes: detecting whether the transformer slip rotation needle count difference matches a preset rotation needle count difference; when the transformer slip rotation needle count difference matches the preset rotation needle count difference, sending a loading reversal signal to the transformer optical inspection system to cause the transformer to be flipped and placed on the loading conveyor belt.
Citation Information
Patent Citations
Stamping part feeding robot and method based on visual identity
CN109604466A