Bending detection device and method

Abstract

The present application relates to the technical field of workpiece bending quality detection technology, and in particular to a bending detection device and method. The present application proposes a bending detection device, comprising: a frame; a first positioning mechanism for selectively fixing the first part; a second positioning mechanism, mounted on the frame, for selectively fixing the third part; a camera module, mounted on the frame, for taking photos of the workpiece for detection. The present application also proposes a bending detection method, comprising a correction step S100; a primary detection step S200; a secondary detection step S300; and a judgment step S400. The bending detection device and method have good bending detection quality and detection efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece bending quality detection, and in particular to a bending detection device and method. Background Art

[0002] Flex cables are crucial metal components within electronic products like cameras and batteries, ensuring electrical connections between multiple components. Due to the structural characteristics of these products, the quality of their bending can impact both assembly quality and the safety of the product.

[0003] During the cable forming process, a bending test is performed after the bending process to determine whether the bending quality is qualified. Currently, bending quality inspection can be performed by taking photos. However, the bending inspection quality and efficiency of this method are currently poor. Summary of the Invention

[0004] The present application discloses a device and method for detecting bending of a cable arrangement, which can improve the quality and efficiency of bending detection of a workpiece.

[0005] In order to achieve the above-mentioned objectives, the first aspect of the embodiment of the present application discloses a bending detection device for detecting the bending quality of a workpiece, wherein the workpiece includes a first part, a second part and a third part, and a first bending line extending along a first direction is provided between the first part and the second part, and a second bending line extending along a second direction is provided between the second part and the third part, comprising: a frame; a first positioning mechanism for selectively fixing the first part; a second positioning mechanism installed on the frame for selectively fixing the third part; and a camera module installed on the frame for taking photos of the workpiece for detection.

[0006] Optionally, the first positioning mechanism includes: a first adsorption member, a surface of which has a first adsorption hole, the first adsorption hole being used to adsorb the workpiece; and / or a clamping member, which is used to clamp the workpiece.

[0007] Optionally, the second positioning mechanism includes: a first position adjustment component, installed on the frame; a second adsorption component, installed on the execution end of the first position adjustment component, the second adsorption component has a second adsorption hole, and the second adsorption hole is used to adsorb the workpiece; wherein, the first position adjustment component is used to adjust the posture of the second adsorption component.

[0008] Optionally, the first position adjustment component includes: a first linear module, installed on the frame, used to adjust the position of the second adsorption component in the first direction, the second direction and the third direction, the first direction, the second direction and the third direction are arranged vertically in pairs; a first rotating module, installed on the execution end of the first linear module, used to drive the second adsorption component to rotate.

[0009] Optionally, the camera module includes: a second position adjustment component installed on the frame; a camera body installed on the execution end of the second position adjustment component, and the second position adjustment component is used to adjust the posture of the camera body.

[0010] Optionally, the workpiece has two third parts, the two third parts are bent along the second bending line, the number of the second positioning mechanisms is two, and along the first direction, the two second positioning mechanisms are relatively arranged on both sides of the first positioning mechanism, and the second positioning mechanisms correspond one-to-one to the third parts of the workpiece.

[0011] Optionally, three camera modules are provided, wherein two of the camera modules are arranged opposite to each other along the first direction for photographing and inspecting the workpiece from both sides along the first direction, and the other camera module is used for photographing and inspecting the workpiece along the second direction.

[0012] A second aspect of the present application provides a bending detection method for detecting the bending quality of a workpiece, wherein the workpiece includes a first portion, a second portion, and a third portion, wherein a first bending line extending in a first direction is defined between the first portion and the second portion, a second bending line extending in a second direction is defined between the second portion and the third portion, the third portion having a first marking portion, and the first portion having a second marking portion, including:

[0013] S100 Correction step: fixing the position of the first portion and adjusting the position of the third portion until the first marking portion reaches a preset position;

[0014] S200: a first detection step: taking a photo to detect the position of the second marking portion, and recording the position of the second marking portion as the first position;

[0015] S300: Second detection step: releasing the first portion, taking a photo again to detect the position of the second marking portion, and recording the position of the second marking portion as a second position;

[0016] S400 judgment step: comparing whether the offset between the first position and the second position meets a preset range; if the offset is within the preset range, it is judged that the bending quality of the workpiece is qualified.

[0017] Optionally, before the correction step S100, the bending detection method further includes a step S000 of calculating a preset position, including:

[0018] Taking photos of the workpiece from both sides of the first direction and along the second direction to detect the initial positions of the first part and the third part;

[0019] The preset position of the first marking portion is calculated based on the initial position of the first portion.

[0020] Optionally, adjusting the position of the third part includes: adsorbing one side of the third part along the thickness direction of the third part and driving the third part to move, and the first marking portion is located on the other side of the third part.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] In the bending detection device of the embodiment of the present application, the first positioning mechanism and the second positioning mechanism can be used to quickly fix the position of the workpiece, thereby improving the shooting accuracy of the camera module, shortening the workpiece detection cycle, and further improving the bending detection quality and detection efficiency of the workpiece;

[0023] The bending detection method of the embodiment of the present application is used to perform bending detection on the workpiece. First, the S100 correction step is implemented to adjust the position of the third part relative to the first part, so that the workpiece can be fixed in a preset position; secondly, the S200 primary detection step is implemented to perform a photo detection on the workpiece, and the first position is recorded as a reference parameter. Since the first position is detected based on the state that the first part and the third part are both fixed, the possibility of reducing the quality of the photo detection due to shaking when the workpiece moves is reduced, and the possibility of reducing the detection efficiency due to slowing down the beat due to the stationary workpiece is reduced; thirdly, the S300 secondary detection step is implemented to release the third part and record the second position as a comparison parameter; and the S400 judgment step is implemented. The smaller the offset of the second position relative to the first position, the better the bending quality of the workpiece, so that the bending quality of the workpiece can be detected with high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 1 is a structural diagram of a bending detection device provided in an embodiment of the present application;

[0026] Figure 2 1 is a schematic structural diagram of a first positioning mechanism of a bending detection device provided in an embodiment of the present application;

[0027] Figure 3 This is a structural schematic diagram of a second positioning mechanism of a bending detection device provided in an embodiment of the present application from one perspective;

[0028] Figure 4 This is a schematic diagram of the structure of an adsorption member of a second positioning mechanism of a bending detection device provided in an embodiment of the present application;

[0029] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle;

[0030] Figure 6 1 is a structural schematic diagram of a second positioning mechanism of a bending detection device provided in an embodiment of the present application from another perspective;

[0031] Figure 7 This is a schematic diagram of an unfolded state of a workpiece in a form applicable to a bending detection device and method provided in an embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of a bending state of a workpiece in a form applicable to a bending detection device and method provided in an embodiment of the present application;

[0033] Figure 9 is a bending state diagram of another form of workpiece applicable to a bending detection device and method provided in an embodiment of the present application (the first part is not shown);

[0034] Figure 10 This is a schematic diagram of the steps of a bending detection method provided in an embodiment of the present application.

[0035] Explanation of main reference numerals: 100 - bending detection device; 110 - frame; 111 - bending detection station; 120 - first positioning mechanism; 121 - first adsorption member; 1211 - first adsorption hole; 1212 - first surface; 130 - second positioning mechanism; 131 - first position adjustment assembly; 1311 - first linear module; 1312 - first rotary module; 1313 - X-direction module; 1314 - Y-direction module; 1315 - Z-direction module; 132 - second adsorption member; 1321 - second surface; 1322 - second adsorption hole; 1323 - adsorption portion; 1324 - connecting portion; 140-camera module; 140a-first camera; 140b-second camera; 140c-third camera; 141-second position adjustment assembly; 142-camera body; 200-workpiece; 210-first part; 211-first side; 212-second side; 220-second part; 230-third part; 231-marking side; 232-adsorption side; 233-first section; 234-second section; 240-first bending line; 250-second bending line; 260-first marking part; 270-second marking part; X-first direction; Z-second direction; Y-third direction; P-first axis. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0037] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0038] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0039] In the related art, bending quality inspection can be performed by taking photos, but the bending inspection quality and efficiency of this method are currently poor.

[0040] After research, the inventors discovered that because the cable is made of thin, relatively soft metal, it can vibrate during movement. This can reduce image quality and require the workpiece to rest for a period of time to alleviate the vibration, which in turn slows down the test cycle and reduces inspection efficiency. If existing bend detection devices and methods could be improved to quickly bring the workpiece to a standstill after loading, these issues could be overcome, improving both the quality and efficiency of bend inspections.

[0041] like Figure 1 、 Figure 7 and Figure 8 As shown, some embodiments of the present application disclose a bending detection device 100 for detecting the bending quality of a workpiece 200 .

[0042] like Figure 7 and Figure 8 As shown, the workpiece 200 includes a first portion 210, a second portion 220, and a third portion 230. A first bending line 240 extending along a first direction X is defined between the first portion 210 and the second portion 220, and a second bending line 250 extending along a second direction Z is defined between the second portion 220 and the third portion 230. The third portion 230 has a first marking portion 260, and the first portion 210 has a second marking portion 270.

[0043] In some embodiments of the present application, the workpiece 200 is a camera cable, the first marking portion 260 is formed on the third portion 230 by coating, and the second marking portion 270 is a chip; in other embodiments, the workpiece 200 may also be a bent part made of metal for other purposes, and the first marking portion 260 and the second marking portion 270 may also be in other forms.

[0044] like Figure 7 As shown, in some embodiments of the present application, the workpiece 200 has two third portions 230, which are respectively bent and extended from two edges of the second portion 220 along the first direction X. Each third portion 230 includes a first marking portion 260. In other embodiments, the workpiece 200 may also include only one third portion 230.

[0045] like Figure 1 、 Figure 6 and Figure 7As shown, the bending detection device 100 includes a frame 110, a first positioning mechanism 120, a second positioning mechanism 130, and a camera module 140. The first positioning mechanism 120 is used to selectively fix to the first portion 210, the second positioning mechanism 130 and the camera module 140 are installed on the frame 110, the second positioning mechanism 130 is used to selectively fix the third portion 230, and the camera module 140 is used to take pictures of the workpiece 200 for detection.

[0046] In the bending detection device 100 of the embodiment of the present application, the first positioning mechanism 120 and the second positioning mechanism 130 can be used to quickly fix the posture of the workpiece 200, thereby improving the shooting accuracy of the camera module 140, shortening the detection cycle of the workpiece 200, and further improving the bending detection quality and detection efficiency of the workpiece 200.

[0047] The technical solution of the present application will be further described below with reference to specific embodiments and drawings.

[0048] like Figure 1 As shown, the frame 110 has a bending detection station 111 , and the bending detection process of the workpiece 200 is performed at the bending detection station 111 .

[0049] like Figure 1 As shown, in some embodiments of the present application, the first positioning mechanism 120 is separately arranged from the frame 110, and the first positioning mechanism 120 can be arranged on an external carrier, which moves to carry the workpiece 200 to the bending inspection station 111, and then carries the workpiece 200 away from the bending inspection station 111 after the bending inspection process is completed.

[0050] In other embodiments, the first positioning mechanism 120 may also be installed on the frame 110 , and the workpiece 200 may be loaded to the bending inspection station 111 by other robots or manually.

[0051] In some embodiments of the present application, the first positioning mechanism 120 and the second positioning mechanism 130 both fix the workpiece 200 by adsorption; in other embodiments, the first positioning mechanism 120 and the second positioning mechanism 130 can also fix the workpiece 200 by clamping or magnetic attraction.

[0052] like Figure 2 As shown, in some embodiments of the present application, the first positioning mechanism 120 includes a first adsorption member 121 and / or a clamping member. The first adsorption member 121 is used to adsorb the workpiece 200 , and the clamping member is used to clamp the workpiece 200 .

[0053] The first positioning mechanism 120 may include only the first adsorption member 121, through which the workpiece 200 is adsorbed; the first positioning mechanism 120 may include only the clamping member, through which the workpiece 200 is clamped and fixed; the first positioning mechanism 120 may also include both the first adsorption member 121 and the clamping member, wherein the first adsorption member 121 adsorbs the workpiece 200 from one side of the workpiece 200, and the clamping member presses the workpiece 200 against the first adsorption member 121 from the other side.

[0054] The first adsorption member 121 has a first surface 1212 having first adsorption holes 1211 for adsorbing the workpiece 200. Specifically, there are a plurality of first adsorption holes 1211, and the plurality of first adsorption holes 1211 collectively adsorb the first portion 210 or release the first portion 210.

[0055] With this structural form, the first portion 210 of the workpiece 200 can be fixed or released in the form of adsorption.

[0056] In some embodiments of the present application, the first surface 1212 is a substantially upwardly disposed horizontal surface, and the workpiece 200 is placed on the first adsorption member 121. With this structure, when the first adsorption member 121 releases the workpiece 200, the workpiece 200 can be naturally placed on the first surface 1212 by gravity.

[0057] In other embodiments, the first surface 1212 may also be a horizontal surface facing downward or an inclined surface extending in other directions, and the first adsorption member 121 adsorbs the workpiece 200 through the first adsorption holes 1211. When the adsorption function of the first adsorption member 121 is turned off, another adsorption member is used to adsorb the workpiece 200, such as the second adsorption member 132 described below.

[0058] like Figure 3 、 Figure 4 and Figure 5 As shown, in some embodiments of the present application, the second positioning mechanism 130 includes a first position adjustment component 131 and a second adsorption component 132, the first position adjustment component 131 is installed on the frame 110, the second adsorption component 132 is installed on the execution end of the first position adjustment component 131, the second adsorption component 132 has a second adsorption hole 1322, the second adsorption hole 1322 is used to adsorb the workpiece 200, and the first position adjustment component 131 is used to adjust the posture of the second adsorption component 132.

[0059] The second adsorption member 132 has a second surface 1321 on its side. The second surface 1321 has a plurality of second adsorption holes 1322 . The plurality of second adsorption holes 1322 jointly adsorb the third portion 230 or release the third portion 230 .

[0060] Specifically, the second adsorption member 132 includes an adsorption portion 1323 and a connecting portion 1324 connected to each other. The connecting portion 1324 is connected to the execution end of the first position adjustment component 131 . The adsorption portion 1323 has a second surface 1321 , and the second adsorption hole 1322 is provided in the adsorption portion 1323 .

[0061] The side portion of the second adsorption member 132 refers to one side of the second adsorption member 132 along the first direction X. Depending on the shape of the workpiece 200 , the second adsorption member 132 may adsorb the workpiece 200 from one side of the third portion 230 .

[0062] Through this structural form, the workpiece 200 can be fixed or the third part 230 of the workpiece 200 can be released in the form of adsorption; by setting the first position adjustment component 131, the position of the second adsorption component 132 can be adjusted, so that the second adsorption component 132 can move under the guidance of the camera module 140, so that the first marking part 260 reaches the preset position.

[0063] like Figure 3 and Figure 4 As shown, based on the aforementioned implementation of "the workpiece 200 includes two third parts 230", the number of the second positioning mechanisms 130 is two, and along the first direction X, the two second positioning mechanisms 130 are relatively arranged on both sides of the first positioning mechanism 120, and the second positioning mechanisms 130 correspond one-to-one to the third parts 230 of the workpiece 200.

[0064] It is understandable that the structures of the adsorption portions 1323 of the two second adsorption members 132 may be the same or different, and are specifically set according to the structural characteristics of the two third portions 230 of the workpiece 200 .

[0065] In other embodiments, only one third part 230 may be provided, and the number of the second positioning mechanism 130 may also be only one.

[0066] like Figure 8 and Figure 9 As shown, in some embodiments of the present application, the two third parts 230 are bent along the second bending line 250, the second adsorption parts 132 of the two second positioning mechanisms 130 are located on the side where the two third parts 230 are close to each other to adsorb and fix the third parts 230, and the first marking part 260 is located on the side where the two third parts 230 are opposite to each other.

[0067] In consideration of the structural characteristics of the workpiece 200 , the second adsorption member 132 fixes the third portion 230 by adsorption force as much as possible and fully exposes the first marking portion 260 , thereby improving the bending detection quality and efficiency of the workpiece 200 .

[0068] In other embodiments, the corresponding third parts 230 may also be adsorbed from the sides of the two third parts 230 that are away from each other.

[0069] like Figure 6 As shown, in some embodiments of the present application, the first position adjustment assembly 131 includes a first linear module 1311 and a first rotary module 1312. The first linear module 1311 is mounted on the frame 110 and is used to adjust the position of the second adsorption member 132 in the first direction X, the second direction Z, and the third direction Y. The first direction X, the second direction Z, and the third direction Y are arranged perpendicularly in pairs. The first rotary module 1312 is mounted on the actuator end of the first linear module 1311 and is used to drive the second adsorption member 132 to rotate along the first axis P.

[0070] Specifically, the first linear module 1311 includes an X-direction module 1313, a Y-direction module 1314, and a Z-direction module 1315. The Y-direction module 1314 is mounted on the frame 110, the X-direction module 1313 is mounted on the actuator end of the Y-direction module 1314, the Z-direction module 1315 is mounted on the actuator end of the X-direction module 1313, the first rotary module 1312 is mounted on the actuator end of the Z-direction module 1315, and the second suction member 132 is mounted on the actuator end of the first rotary module 1312. Each module can be driven by an electric cylinder or other form of linear drive element.

[0071] In the first position adjustment component 131 of the above structure, the second adsorption component 132 is driven to displace in the first direction X, the second direction Z and the third direction Y by the first linear module 1311, and the second adsorption component 132 is driven to displace in the direction around the first axis P by the first rotating module 1312, so as to fully and flexibly adjust the position of the second adsorption component 132.

[0072] like Figure 1 As shown, in some embodiments of the present application, the camera module 140 includes a second position adjustment component 141 and a camera body 142, the second position adjustment component 141 is installed on the frame 110, and the camera body 142 is installed on the execution end of the second position adjustment component 141, and the second position adjustment component 141 is used to adjust the posture of the camera body 142.

[0073] The second position adjustment component 141 is similar in structure to the first position adjustment component 131 and will not be further described herein. The second position adjustment component 141 is used to adjust the position of the camera body 142 to ensure the shooting position and focus quality of the camera body 142.

[0074] It can be understood that the number of camera modules 140 can be one or more; based on the implementation method in which the number of camera modules 140 is multiple, multiple camera modules 140 usually take photos and detect the workpiece 200 from different directions. Each camera module 140 can be equipped with a second position adjustment component 141, or the second position adjustment component 141 of some camera modules 140 can be omitted by comprehensively considering factors such as cost, layout space and detection accuracy requirements, and the camera body 142 can be fixedly installed on the frame 110.

[0075] Through the above-mentioned structural form, the photographing detection quality of the camera module 140 can be improved, thereby improving the detection quality of the bending detection device 100.

[0076] like Figure 1 As shown, in some embodiments of the present application, three camera modules 140 are provided, wherein two camera modules 140 are arranged opposite to each other along a first direction X, and are used to photograph and inspect the workpiece 200 from both sides along the first direction X, and the other camera module 140 is used to photograph and inspect the workpiece along a second direction Z.

[0077] The above arrangement of the camera module 140 can improve the photographing and detection quality of the camera module 140 and thus improve the detection quality of the bending detection device 100 .

[0078] Specifically, the three camera modules 140 are a first camera 140a, a second camera 140b, and a third camera 140c. The first camera 140a and the second camera 140b are positioned opposite each other along a first direction X. The first camera 140a and the second camera 140b are located on either side of the bend inspection station 111, respectively. The first camera 140a and the second camera 140b are configured to photograph and inspect the workpiece 200 from both sides of the bend inspection station 111. The third camera 140c is positioned between the first camera 140a and the second camera 140b. Along the second direction Z, the first positioning mechanism 120 and the third camera 140c are spaced apart. The first positioning mechanism 120 secures the workpiece 200 from one side, while the third camera 140c photographs and inspects the workpiece 200 from the other side.

[0079] The embodiment of the present application further discloses a bending detection method for detecting the bending quality of a workpiece 200 .

[0080] like Figure 10 As shown, the bending detection method includes:

[0081] S100 Correction step: fix the position of the first portion 210 and adjust the position of the third portion 230 until the first marking portion 260 reaches a preset position;

[0082] S200: First detection step: take a photo to detect the position of the second marking portion 270, and record the position of the second marking portion 270 as the first position A1;

[0083] S300 Second detection step: release the first portion 210, take another photo to detect the position of the second marking portion 270, and record the position of the second marking portion 270 as the second position A2;

[0084] S400 is a judgment step: comparing whether the offset between the first position A1 and the second position A2 is within a preset range. If the offset is within the preset range, it is judged that the bending quality of the workpiece 200 is qualified.

[0085] The bending detection method of the embodiment of the present application is used to perform bending detection on the workpiece 200. First, the correction step S100 is implemented to adjust the position of the third part 230 relative to the first part 210, so that the workpiece 200 can be fixed in a preset posture; secondly, the primary detection step S200 is implemented to perform a photo detection on the workpiece 200, and the first position A1 is recorded as a reference parameter. Since the first position A1 is detected based on the state that the first part 210 and the third part 230 are both fixed, the possibility of reducing the quality of the photo detection due to shaking when the workpiece 200 moves is reduced, and the possibility of reducing the detection efficiency due to slowing down the beat due to the stationary workpiece 200 is reduced; thirdly, the secondary detection step S300 is implemented to release the third part 230 and record the second position A2 as a comparison parameter. By judging whether the offset of the second position A2 relative to the first position A1 is less than the preset value, it is judged whether the bending quality of the workpiece 200 is qualified, so that the bending quality of the workpiece 200 can be detected with high precision.

[0086] It is understandable that the bending detection method can be implemented based on the bending detection device 100 or using other devices; the smaller the offset between the first position A1 and the second position A2, the higher the bending quality of the workpiece 200.

[0087] Combine Figures 1 to 10 As shown, the bending detection method is specifically described below based on the bending detection device 100.

[0088] S100 correction steps include:

[0089] The workpiece 200 is placed on the first adsorption member 121 of the first positioning mechanism 120 , and the first adsorption member 121 of the first positioning mechanism 120 adsorbs the first portion 210 through the first adsorption hole 1211 ;

[0090] The camera body 142 captures the actual position of the first marking portion 260 . Specifically, the first camera 140 a and the second camera 140 b capture the actual position of the first marking portion 260 .

[0091] The second adsorption component 132 of the second positioning mechanism 130 adsorbs the third part 230 through the second adsorption hole 1322, and the first position adjustment component 131 of the second positioning mechanism 130 responds and drives the second adsorption component 132 to move, and the second adsorption component 132 drives the third part 230 to move, so that the first marking part 260 moves to the preset position until the camera body 142 captures the first marking part 260 moving to the preset position, and the first position adjustment component 131 stops adjusting the posture of the second adsorption component 132.

[0092] S200 one-time detection steps include:

[0093] The first adsorption member 121 adsorbs the first portion 210 through the first adsorption hole 1211, and the second adsorption member 132 adsorbs the third portion 230 through the second adsorption hole 1322, so as to keep the first marking portion 260 at the preset position.

[0094] The camera body 142 takes a picture to detect the position of the second marking portion 270 and records it as the first position A1. Specifically, the third camera 140 c takes a picture to detect the position of the second marking portion 270.

[0095] S300 secondary detection steps include:

[0096] Turn off the adsorption function of the first adsorption hole 1211 of the first adsorption member 121 to release the first portion 210;

[0097] The adsorption function of the second adsorption holes 1322 of the second adsorption member 132 is maintained, and the third portion 230 is adsorbed only by the second adsorption member 132 ;

[0098] The camera body 142 takes a picture to detect the position of the second marking portion 270 and records it as the second position A2. Specifically, the third camera 140c takes a picture to detect the position of the second marking portion 270.

[0099] In some embodiments of the present application, before the correction step S100, the bend detection method further includes a step S000 of calculating a preset position, including:

[0100] S010 photographing step: photographing the workpiece 200 from both sides in the first direction X and along the second direction Z to determine the initial positions of the first portion 210 and the third portion 230;

[0101] S020 analysis and calculation step: according to the initial position of the first portion 210, the preset position of the first marking portion 260 is calculated.

[0102] The step of calculating the preset position in S000 can provide data of the preset position of the first marking portion 260 , and provide reference data for the step of correcting in S100 .

[0103] Specifically, the S010 photographing steps include:

[0104] The first camera 140 a and the second camera 140 b photograph the workpiece 200 from both sides of the first direction X and determine the initial position of the first marking portion 260 of the third part 230 ;

[0105] The third camera 140 c photographs and detects the workpiece 200 along the second direction Z, and determines the initial positions of the first portion 210 and / or the second marking portion 270 .

[0106] The S020 analysis and calculation steps include:

[0107] Calculating a preset position of the first marking portion 260 based on the contour of the first portion 210 and / or the initial position of the second marking portion 270 ;

[0108] For a workpiece 200 with known dimensions, after knowing the outline of the first part 210 and / or the initial position of the second marking portion 270, assuming that the first bending line 240 and the second bending line 250 are both bent at a preset angle, the preset position of the first marking portion 260 can be calculated.

[0109] It is understandable that in the step of calculating the preset position S000 , the third part 210 is maintained in the released state, and the first part 210 can be placed on the first positioning mechanism 120 or fixed to the first positioning mechanism 120 by adsorption.

[0110] In some embodiments of the present application, the correction step S100 includes:

[0111] S110: The camera module 140 performs self-calibration and adjusts its posture.

[0112] In the above steps, the camera module 140 adjusts the depth of field through the second position adjustment component 141 to ensure the quality of photographing the workpiece 200 .

[0113] In some embodiments of the present application, the correction step S100 includes:

[0114] S120 : Adsorbing and fixing the side of the first portion 210 facing away from the third portion 230 .

[0115] The thickness direction of the first part 210 extends roughly along the second direction Z. The two sides of the first part 210 along the second direction Z are respectively the first side 211 and the second side 212. The third part 230 is located on the first side 211. The first adsorption part 121 adsorbs and fixes the first part 210 from the second side 212 of the first part 210. The second marking part 270 is set on the first side 211.

[0116] In the above steps, since the first portion 210 is fixed by adsorption from the second side 212 of the third portion 230 , a larger space can be left as much as possible to arrange the workpiece 200 and the possibility of blocking the view of the camera module 140 is reduced.

[0117] In other embodiments, the first portion 210 may also be fixed by adsorption from the first side 211 of the first portion 210 .

[0118] In some embodiments of the present application, in the correction step S100 , adjusting the position of the third portion 230 includes:

[0119] S130 : Adsorbing the third part 230 and driving the third part 230 to move.

[0120] Specifically, the second adsorption member 132 adsorbs the third portion 230 through the second adsorption hole 1322 , and the second adsorption member 132 is driven to move by the first position adjustment component 131 , thereby driving the third portion 230 to move.

[0121] In the above steps, the first portion 210 of the workpiece 200 can be fixed or released in the form of adsorption, which is simple, feasible, and highly reliable.

[0122] Furthermore, S130 adsorbs the third portion 230 and drives the third portion 230 to move, including:

[0123] S131 : Along the thickness direction of the third portion 230 , one side of the third portion 230 is adsorbed and the third portion 230 is driven to move, and the first marking portion 260 is located on the other side of the third portion 230 .

[0124] Specifically, the thickness direction of the third part 230 extends roughly along the first direction X. Along the first direction X, the two sides of the third part 230 are the marking side 231 and the adsorption side 232, respectively. The first marking part 260 is located on the marking side 231, and the second adsorption part 132 adsorbs the third part 230 from the adsorption side 232.

[0125] In the above steps, the space on both sides of the third portion 230 can be fully utilized, so that the camera module 140 can take pictures and detect the third portion 230 with an unobstructed line of sight, and there is enough space to arrange the second adsorption member 132.

[0126] In other embodiments, the adsorption fixation may also be performed from the side of the third portion 230 having the first marking portion 260 .

[0127] In some embodiments of the present application, the workpiece 200 has two third portions 230 , and the two third portions 230 are bent along a second bending line 250 . The bending detection method includes:

[0128] The two third parts 230 are fixed or released at the same time.

[0129] In the above steps, by achieving synchronous movement of the two second adsorption members 132 , the detection efficiency of the workpiece 200 can be improved.

[0130] Specifically, there are two second adsorption members 132 , and the second adsorption members 132 are disposed corresponding to the third portion 230 . The second adsorption hole 1322 of each second adsorption member 132 adsorbs or releases the adsorption side 232 of the corresponding third portion 230 .

[0131] In some embodiments of the present application, the third part 230 includes a first section 233 and a second section 234 connected in sequence approximately along the third direction Y, one end of the first section 233 is connected to the second part 220 through a second bending line 250, and the other end is connected to the second section 234, the first section 233 extends obliquely in a direction away from the other third part 230, the second section 234 extends approximately along the third direction Y, and the first marking portion 260 is located in the second section 234.

[0132] The adsorption sides 232 of the two third parts 230 are arranged opposite to each other and are both located on the side facing the other third part 230. The first marking parts 260 of the two third parts 230 are both exposed to the outside of the workpiece 200, and the two second adsorption parts 132 adsorb the corresponding second sections 234 from the adsorption sides 232.

[0133] In the above steps, combined with the structural characteristics of the workpiece 200, the second adsorption member 132 fixes the third portion 230 as much as possible through adsorption force and fully exposes the first marking portion 260, thereby improving the bending detection quality and bending detection efficiency of the workpiece 200.

[0134] In other embodiments, the adsorption sides 232 of the two third portions 230 may also be arranged in the same direction, and the two second adsorption components 132 adsorb the corresponding third portions 230 from the same side of the corresponding third portions 230 .

[0135] Since the bending detection device 100 and the bending detection method of the embodiment of the present application can quickly fix the position of the workpiece 200, the defects of poor bending detection efficiency and detection quality caused by the shaking of the workpiece 200 are overcome, thereby improving the bending detection efficiency and detection quality of the workpiece 200.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bending detection device (100) for detecting the bending quality of a workpiece (200), wherein the workpiece (200) comprises a first portion (210), a second portion (220), and a third portion (230), wherein a first bending line (240) extending along a first direction is defined between the first portion (210) and the second portion (220), and a second bending line (250) extending along a second direction is defined between the second portion (220) and the third portion (230), wherein: include: Frame (110); a first positioning mechanism (120) for selectively fixing the first portion (210); a second positioning mechanism (130), mounted on the frame (110), for selectively fixing the third portion (230); A camera module (140) is mounted on the frame (110) and is used to take photos of the workpiece (200). The second positioning mechanism (130) comprises: A first position adjustment assembly (131) is mounted on the frame (110); A second adsorption member (132) is installed on the execution end of the first position adjustment component (131), and the second adsorption member (132) has a second adsorption hole (1322), and the second adsorption hole (1322) is used to adsorb the workpiece (200); Wherein, the first position adjustment component (131) is used to adjust the position of the second adsorption component (132); The camera module (140) comprises: A second position adjustment assembly (141) is mounted on the frame (110); The camera body (142) is mounted on the execution end of the second position adjustment component (141), and the second position adjustment component (141) is used to adjust the posture of the camera body (142).

2. The bending detection device (100) according to claim 1, characterized in that: The first positioning mechanism (120) comprises: A first adsorption member (121), wherein the surface of the first adsorption member (121) has a first adsorption hole (1211), and the first adsorption hole (1211) is used to adsorb the workpiece (200); and / or A clamping member is used for clamping the workpiece (200).

3. The bending detection device (100) according to claim 1, characterized in that: The first position adjustment component (131) comprises: a first linear module (1311), mounted on the frame (110), for adjusting the posture of the second adsorption member (132) in the first direction, the second direction, and the third direction, wherein the first direction, the second direction, and the third direction are arranged perpendicularly to each other; The first rotating module (1312) is installed on the execution end of the first linear module (1311) and is used to drive the second adsorption member (132) to rotate.

4. The bending detection device (100) according to claim 1, characterized in that: The workpiece (200) has two third parts (230), and the two third parts (230) are bent along the second bending line (250). The number of the second positioning mechanisms (130) is two. Along the first direction, the two second positioning mechanisms (130) are relatively arranged on both sides of the first positioning mechanism (120), and the second positioning mechanisms (130) correspond one to one to the third parts (230).

5. The bending detection device (100) according to claim 1, characterized in that: Three camera modules (140) are provided, wherein two of the camera modules (140) are arranged opposite to each other along the first direction and are used to photograph and inspect the workpiece (200) from both sides along the first direction, and the other camera module (140) is used to photograph and inspect the workpiece (200) along the second direction.

6. A bending detection method for detecting the bending quality of a workpiece, wherein the workpiece (200) comprises a first portion (210), a second portion (220) and a third portion (230), wherein a first bending line (240) extending along a first direction is provided between the first portion (210) and the second portion (220), a second bending line (250) extending along a second direction is provided between the second portion (220) and the third portion (230), the third portion (230) having a first marking portion (260), and the first portion (210) having a second marking portion (270), wherein: include: S100 correction step: fixing the position of the first part (210) and adjusting the position of the third part (230) until the first marking portion (260) reaches a preset position; S200: a first detection step: taking a photo to detect the position of the second marking portion (270), and recording the position of the second marking portion (270) as the first position; S300: Second detection step: releasing the first part (210), taking photos again to detect the position of the second marking part (270), and recording the position of the second marking part (270) as a second position; S400 judgment step: comparing whether the offset between the first position and the second position conforms to a preset range; if the offset is within the preset range, judging that the bending quality of the workpiece (200) is qualified.

7. The bending detection method according to claim 6, characterized in that: Before the correction step S100, the bending detection method further includes a step S000 of calculating a preset position, including: Taking photos of the workpiece (200) from both sides of the first direction and along the second direction to detect the initial positions of the first part (210) and the third part (230); According to the initial position of the first part (210), the preset position of the first marking portion (260) is calculated.

8. The bending detection method according to claim 6, characterized in that: The adjusting the position of the third portion (230) comprises: Along the thickness direction of the third part (230), one side of the third part (230) is adsorbed and the third part (230) is driven to move, and the first marking part (260) is located on the other side of the third part (230).

Images