Parts testing equipment and parts sorting equipment

Abstract

The present application provides a parts detection equipment and a parts sorting equipment, which relate to the field of parts detection technology. The parts detection equipment includes a feeding device and a detection device. The feeding device is used to convey the parts to the detection device. The detection device includes a positioning part and a detection part. The positioning part includes a positioning turntable and a supporting part arranged on one side of the positioning turntable. A positioning fixture is fixedly arranged on the positioning turntable. Each positioning fixture includes a fixture bin, a first clamping block, a second clamping block and a follower wheel. When the supporting part presses the first clamping block to move in the first direction, the second clamping block can be driven to move in the second direction by the follower wheel, so that the parts in the fixture bin can be clamped in two directions. The detection part is used to detect the parts in the fixture bin. By using the above-mentioned parts detection equipment, accurate detection of parts can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of parts detection, and in particular to a parts detection device and a parts sorting device. Background Art

[0002] As electronic products, such as portable terminal products, develop towards being thinner and more sophisticated, the parts of electronic products have a design trend of miniaturization and specialization. The processing accuracy of parts is directly related to the quality of electronic products and whether the parts can be assembled and used normally.

[0003] Therefore, the inspection and screening of parts is particularly important. Parts can be inspected using automatic testing equipment. This equipment includes a loading device for automatically loading parts to be inspected, a carrier plate that supports the parts, and a power unit that drives the carrier plate. Driven by the power unit, the carrier plate reciprocates, moving the parts conveyed by the loading device to a specific position for inspection. However, during the inspection process, vibrations in the inspection equipment itself can often cause the parts to shift or even flip, affecting the accuracy of the test results. Summary of the Invention

[0004] In view of the above, it is necessary to provide a parts inspection device and a parts sorting device that can solve the problem that parts are more likely to move or deflect during the inspection process due to the vibration of the equipment itself.

[0005] In the first aspect, the present application provides a parts detection device, which includes a loading device and a detection device. The loading device is used to convey the parts to the detection device. The detection device includes a positioning part and a detection part. The positioning part includes a positioning turntable and a supporting part arranged on one side of the positioning turntable. A positioning fixture is fixedly arranged on the positioning turntable. The positioning fixture includes a fixture bin, a first pressing block, a second pressing block and a follower wheel. The fixture bin is used to carry the parts transported by the loading device. The follower wheel is arranged between the first pressing block and the second pressing block and respectively abuts against the first pressing block and the second pressing block. The abutting portion is used to apply a abutting force to the first pressing block. The first pressing block moves in a first direction based on the abutting force to apply a first pressing force to the parts in the fixture bin. In the process of moving in the first direction, the first pressing block drives the second pressing block to move in the second direction through the follower wheel, so that the second pressing block applies a second pressing force to the parts in the fixture bin. The first direction and the second direction are set at a preset angle. The detection portion is arranged on one side of the positioning turntable. The detection portion is used to detect the parts in the fixture bin.

[0006] By adopting the above technical solution, multi-directional pressing of parts can be achieved through the positioning fixture, ensuring the consistency of the position and posture of the parts during the measurement process, and improving the detection accuracy of the parts.

[0007] In one possible implementation, the clamping chamber includes a first clamping arm and a second clamping arm bent from the first clamping arm. The first clamping arm, the second clamping arm, the first pressing block and the second pressing block are used to clamp parts in different directions.

[0008] The above technical solution can realize multi-directional pressing of parts, ensure the consistency of the position and posture of parts during the measurement process, and improve the detection accuracy of parts.

[0009] In a possible implementation, the clamp chamber is further provided with a supporting member, which protrudes from any one of the first clamping arm or the second clamping arm and is used to support the part.

[0010] By adopting the above technical solution, the parts are positioned by the support member auxiliary clamping arm and the pressing block, which can further ensure the consistency of the position and posture of the parts during the measurement process.

[0011] In one possible implementation, the positioning fixture further includes a base, a first sliding member, and a second sliding member. The fixture compartment is detachably connected to the base, the first pressing block is slidably connected to the base via the first sliding member, and the second pressing block is slidably connected to the base via the second sliding member.

[0012] By adopting the above technical solution, the positioning fixture can achieve support in one direction and press parts in multiple directions, ensuring the consistency of the position and posture of the parts during the measurement process.

[0013] In one possible implementation, the first sliding member includes a first slider and a first guide rail, the first slider can move relative to the first guide rail, the first slider is fixedly connected to the first clamping block, and the first guide rail is fixedly connected to the base, and the second sliding member includes a second slider and a second guide rail, the second slider can move relative to the second guide rail, the second slider is fixedly connected to the second clamping block, and the second guide rail is fixedly connected to the base.

[0014] By adopting the above technical solution, the first pressing block and the second pressing block can slide relative to the base, so that the positioning fixture can achieve support in one direction and press parts in multiple directions.

[0015] In one possible implementation, the positioning fixture also includes a first reset member, which includes a first stop block and a first elastic member. The first stop block is fixedly connected to the base, one end of the first elastic member abuts against the first stop block, and the other end of the first elastic member abuts against the first clamping block.

[0016] By adopting the above technical solution, when the positioning fixture exits from pressing the part, the first pressing block can automatically return to the initial position, and the first pressing block no longer supports the part, which facilitates subsequent part unloading.

[0017] In one possible implementation, the first reset member also includes a first guide member, the first elastic member is sleeved on the first guide member, the first stop block is provided with a first positioning structure, the first clamping block is provided with a second positioning structure, and the first guide member is installed between the first positioning structure and the second positioning structure.

[0018] By adopting the above technical solution, the elastic member can be moved along the guide member, thereby improving the service life of the elastic member, and can cooperate with the guide rail to ensure that the pressing member moves along the specified direction.

[0019] In one possible implementation, the positioning fixture also includes a second reset member, which includes a second stop block and a second elastic member. The second stop block is fixedly connected to the base, one end of the second elastic member abuts against the second stop block, and the other end of the second elastic member abuts against the second clamping block.

[0020] By adopting the above technical solution, when the positioning fixture exits from pressing the part, the second pressing block can automatically return to the initial position, and the second pressing block no longer supports the part, which facilitates subsequent material removal.

[0021] In one possible implementation, the second reset member also includes a second guide member, the second elastic member is sleeved on the second guide member, the second stop block is provided with a third positioning structure, the second clamping block is provided with a fourth positioning structure, and the second guide member is installed between the third positioning structure and the fourth positioning structure.

[0022] By adopting the above technical solution, the elastic member can be moved along the guide member, thereby improving the service life of the elastic member, and can cooperate with the guide rail to ensure that the pressing member moves along the specified direction.

[0023] In a possible implementation, a guide groove is further provided on the base, the follower wheel moves along the guide groove, and the extending direction of the guide groove is the same as the first direction.

[0024] By adopting the above technical solution, the follower wheel can move along the guide groove, and the movement direction can be the same as the movement direction of the first pressing block, so as to drive the second pressing block to move.

[0025] In one possible implementation, a plurality of positioning fixtures are fixedly provided on the positioning turntable, the loading device includes a loading part and a feeding part, the loading part includes a base, a loading rail and a vibrator, the vibrator is provided on the base and is located on one side of the loading rail, the loading rail is connected to the vibrator, the vibrator is used to drive the loading rail to vibrate so that the parts move in the loading rail, and the feeding part is used to cooperate with the loading rail to transport the parts transported by the loading rail to the plurality of positioning fixtures one by one.

[0026] By adopting the above technical solution, it is possible to automatically load parts and transport them to the positioning fixture, which is convenient for subsequent fixation and testing of the parts.

[0027] In one possible implementation, the loading track includes a feed end and a discharge end, the parts move from the feed end to the discharge end, and there is a preset height difference between the feed end and the discharge end.

[0028] The above technical solution can ensure that the loaded parts move smoothly from the feed end to the discharge end, which is convenient for subsequent fixation and inspection of the parts.

[0029] In one possible implementation, the feeding part includes a stop block, a supporting block, a pusher and a divider. The supporting block is located between the stop block and the discharge end of the loading track, and between the pusher and the divider. The stop block cooperates with the loading track so that the parts moved out from the discharge end of the loading track can be located on the supporting block. The pusher is used to push the parts located on the supporting block to the divider, and the divider is used to transport the parts to a positioning fixture among multiple positioning fixtures.

[0030] The above technical solution can ensure that the loaded parts are smoothly transported from the loading track to the positioning fixture for fixation, which is convenient for subsequent part inspection.

[0031] In one possible implementation, the feeding part also includes a stop sensor, which is arranged on one side of the supporting block. The stop sensor is used to output a trigger signal when it detects the presence of parts on the supporting block. The trigger signal is used to trigger the pusher to push the parts located on the supporting block to the distributor.

[0032] By adopting the above technical solution, the parts are detected by the stop sensor and the pusher is triggered to push the parts located on the carrier block to the divider, ensuring that the parts transported from the loading track can be automatically transported to the divider, so that the divider can subsequently transport the parts to the positioning fixture for fixation.

[0033] In one possible implementation, the divider includes a dividing cylinder and a dividing block connected to the dividing cylinder. The dividing block is arranged on one side of the positioning turntable. The pusher is used to push the parts located on the supporting block to the dividing block. The dividing cylinder can drive the dividing block to rotate so as to drop the parts located on the dividing block to one of the multiple positioning fixtures.

[0034] By adopting the above technical solution, the parts transported by the pusher are automatically sent to the positioning fixture for fixation through the dividing cylinder and the dividing block.

[0035] In one possible implementation, the parts detection equipment also includes a control module, which is communicatively connected to the positioning turntable. The control module is used to control the rotation of the positioning turntable so that the divider is aligned with the first positioning fixture in an idle state among multiple positioning fixtures, and the divider is used to drop the parts to the first positioning fixture.

[0036] The above technical solution enables the divider to accurately transport parts to an idle positioning fixture for fixation, facilitating subsequent part inspection. For example, the control module controls the positioning turntable to rotate in a preset direction, performing part loading, blanking, clamping inspection, and unloading sorting in parallel, ensuring that the next positioning fixture aligned with the divider is an idle one.

[0037] In one possible implementation, the detection unit includes a first camera module and a drive motor, the drive motor is used to drive the first camera module to move toward a direction close to the positioning turntable or away from the positioning turntable, the first camera module includes a first camera lens with a fixed working distance, the part includes a plurality of measuring surfaces with different heights, and the control module is also communicatively connected to the drive motor. The control module is used to control the drive motor to drive the first camera module to move based on the distance between the first camera lens and each measuring surface of the part, so that the first camera module focuses and images each measuring surface separately.

[0038] Using the above technical solution, for parts with multiple measurement surfaces, a first camera module with a fixed working distance can be driven by a motor to move, allowing the first camera module to focus and image each measurement surface separately, ensuring a clear image of each measurement surface. Part feature / dimension inspection can then be performed based on the clear image of the part, improving part inspection accuracy. For example, the first camera module may include a measurement camera and a camera lens with a fixed working distance.

[0039] In one possible implementation, the detection unit includes a second camera module, the second camera module includes a second camera lens with a variable working distance and a lens diopter controller, the part includes multiple measuring surfaces with different heights, and the control module is also communicated with the lens diopter controller. The control module is used to output a control voltage corresponding to each measuring surface to the lens diopter controller based on the distance between the second camera lens and each measuring surface, so as to adjust the working distance of the second camera lens so that the second camera module focuses and images each measuring surface separately.

[0040] Using this technical solution, for parts with multiple measurement surfaces, a second camera module with a variable working distance can focus and image each measurement surface separately, ensuring a clear image of each measurement surface. Part feature / dimension inspection can then be performed based on these clear images, improving part inspection accuracy. For example, the second camera module may include a measurement camera and a camera lens with a variable working distance.

[0041] In one possible implementation, the control module is used to fuse multiple images obtained by imaging the detection part to obtain a fused image, and to perform size detection and classification of parts based on the fused image. The multiple images correspond one-to-one to multiple measuring surfaces with different heights.

[0042] By adopting the above technical solution, multiple images corresponding to multiple measurement surfaces collected by the camera module are fused, so that each measurement surface of the part in the fused image is clearly imaged. The size detection and classification of the parts are performed based on the fused image, which can improve the detection accuracy of the parts.

[0043] In one possible implementation, the control module is used to preprocess multiple images and fuse the preprocessed images. The preprocessing includes distortion correction processing and clarity optimization processing. The distortion correction processing is used to align multiple images, and the clarity optimization processing is used to determine the measurement surface with clear imaging in the multiple images.

[0044] Using the above technical solution, some part images may be distorted due to factors such as lens design, improper installation, or the shooting environment. By performing distortion correction on the distorted part images, the part images to be fused can be aligned, and only the focused measurement surfaces in each part image to be fused are clearly imaged, while the images of other non-focused measurement surfaces are blurred. By optimizing the clarity of each part image to be fused, the clearly imaged measurement surface portions of each part image to be fused can be determined, facilitating the fusion of the clearly imaged measurement surface portions of each part image to be fused during subsequent image fusion.

[0045] In one possible implementation, the detection unit also includes a ranging sensor and a semi-reflective prism arranged opposite to the ranging sensor, the semi-reflective prism is used to reflect the measurement waveform emitted by the ranging sensor to the part, and the control module is also communicatively connected to the ranging sensor, and the ranging sensor is used to transmit the distance information between the second camera lens and each measuring surface to the control module.

[0046] By adopting the above technical solution, the distance information between the second camera lens and each measuring surface of the part can be accurately perceived through the ranging sensor and the semi-reflective prism, which makes it convenient to change the working distance of the second camera lens accordingly when capturing images of different measuring surfaces, so that each measuring surface of the part can be focused and imaged.

[0047] In one possible implementation, the supporting portion includes a driving cylinder and a positioning block connected to the driving cylinder. Before the parts in the fixture bin are inspected, the driving cylinder is used to drive the positioning block to move in a first direction to apply a supporting force to the first clamping block. After the parts in the fixture bin are inspected, the driving cylinder is used to drive the positioning block to move in a direction opposite to the first direction to withdraw from the support on the first clamping block.

[0048] By adopting the above technical solution, through the cooperation of the driving cylinder, positioning block and positioning fixture, the parts can be automatically clamped before the parts are inspected, ensuring the consistency of the position and posture of the parts during the measurement process. After the parts are inspected, the clamping of the parts is automatically withdrawn, which facilitates the subsequent automatic sorting and unloading of the parts according to the inspection results.

[0049] On the second aspect, the present application provides a parts sorting device, including a material sorting device and the above-mentioned parts detection device, the parts detection device is used to detect parts, and the material sorting device is used to sort parts according to the detection results of the parts.

[0050] By adopting the above technical solution, multi-directional pressing of parts can be achieved through the positioning fixture, ensuring the consistency of the position and posture of the parts during the measurement process, improving the detection accuracy of the parts, and sorting the parts according to the measurement results of the parts, which is convenient for the subsequent assembly and use of the parts.

[0051] In one possible implementation, the material dividing device includes multiple unloading parts and multiple receiving parts corresponding one-to-one to the multiple unloading parts. The parts detection equipment is used to control the rotation of the positioning turntable based on the detection results of the parts, so that the fixture bin carrying the parts is aligned with the unloading part corresponding to the detection results, and the parts are unloaded from the fixture bin through the corresponding unloading part and fall into the corresponding receiving part.

[0052] By adopting the above technical solution, the material separation device can automatically separate the parts according to the detection results of the parts, which is convenient for the subsequent assembly and use of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of a possible application environment provided by an embodiment of the present application;

[0054] Figure 2 A schematic structural diagram of a parts sorting device provided in one embodiment of the present application;

[0055] Figure 3 A schematic structural diagram of a loading portion in a loading device provided in one embodiment of the present application;

[0056] Figure 4 A schematic structural diagram of a feeding portion in a feeding device provided in one embodiment of the present application;

[0057] Figure 5 A schematic structural diagram of a positioning unit in a detection device provided in one embodiment of the present application;

[0058] Figure 6 This is a structural diagram of a driving cylinder in a detection device provided in an embodiment of the present application driving a positioning block to press a positioning fixture;

[0059] Figure 7 A schematic structural diagram of a positioning fixture in a detection device provided in one embodiment of the present application;

[0060] Figure 8 A schematic diagram of the exploded structure of a positioning fixture provided in one embodiment of the present application;

[0061] Figure 9 A schematic cross-sectional view of a positioning fixture provided in one embodiment of the present application along the III-III direction;

[0062] Figure 10 A schematic cross-sectional view of a positioning fixture provided in one embodiment of the present application along the IV-IV direction;

[0063] Figure 11 A schematic diagram of the principle of a positioning fixture provided in one embodiment of the present application to achieve part compression;

[0064] Figure 12 A flow chart of a parts sorting device according to an embodiment of the present application performing part compaction before imaging the parts;

[0065] Figure 13 A schematic structural diagram of a detection unit in a detection device provided in one embodiment of the present application;

[0066] Figure 14 for Figure 13 The schematic diagram of the principle of the detection unit imaging the measuring surface of the part is shown;

[0067] Figure 15 A schematic structural diagram of a detection unit in a detection device provided in another embodiment of the present application;

[0068] Figure 16 for Figure 15 The schematic diagram of the principle of the detection unit imaging the measuring surface of the part is shown;

[0069] Figure 17 A flow chart of imaging each measurement surface of a part by a detection device provided in one embodiment of the present application;

[0070] Figure 18 A schematic diagram of imaging results of various measurement surfaces of a part provided in one embodiment of the present application;

[0071] Figure 19 A schematic diagram of a fused image of a part provided in one embodiment of the present application;

[0072] Figure 20 A schematic structural diagram of a material distribution device provided in one embodiment of the present application;

[0073] Figure 21 A flow chart of the parts sorting equipment provided in one embodiment of the present application for performing loading, measuring, and unloading sorting of parts;

[0074] Figure 22 A hardware architecture diagram of a control module provided in one embodiment of the present application. DETAILED DESCRIPTION

[0075] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings 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.

[0076] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, words such as "exemplary", "or", and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary", "or", and "for example" is intended to present related concepts in a concrete way.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. It should be understood that, unless otherwise specified in this application, " / " means or. For example, A / B can mean A or B. "And / or" in this application is merely a way to describe the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. "At least one" means one or more. "Multiple" means two or more than two. For example, at least one of a, b or c can mean: a, b, c, a and b, a and c, b and c, a, b and c. It should be understood that the order of the steps shown in the flowcharts herein can be changed, and some can be omitted.

[0078] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered therein. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered therein. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be an element centered therein. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0079] As portable terminal products (such as mobile phones) develop towards being lighter and thinner, the parts of terminal products have a design trend of miniaturization and specialization. The processing accuracy of parts is directly related to the quality of terminal products and whether the parts can be assembled and used normally.

[0080] like Figure 1 As shown in (a) in the figure, part 20 includes multiple measuring surfaces: measuring surface 1, measuring surface 2 and measuring surface 3. Due to the height difference between the measuring surfaces, when using a measuring camera to capture the image of part 20, the depth of field of the camera lens is insufficient, introducing a defocus error. The image of the measuring surface beyond the depth of field of the camera lens is blurred, affecting the measurement accuracy of part 20.

[0081] like Figure 1 As shown in (b) and (c) in Figure 1, some of the features to be measured on part 20 (e.g., the first circular hole on measuring surface 1, the second circular hole on measuring surface 2, the square hole on measuring surface 3, etc.) are located on measuring surfaces at different heights. The height difference between the measuring surfaces exceeds the depth of field of the camera lens. When the camera lens focuses on one of the measuring surfaces, the images of the remaining measuring surfaces are in a defocused state. Figure 1The image shown in (c) in FIG. 1 is more likely to introduce measurement errors when determining the dimensional data of the part 20.

[0082] In some embodiments, for a part 20 manufactured using a process such as Metal Injection Molding (MIM), uncontrollable deformation may occur during sintering and transportation, resulting in height fluctuations on the measured surface of the part 20. Figure 1 As shown in (d) in the figure, for the same measurement surface, due to the existence of height fluctuations, some areas may exceed the depth of field of the camera lens, causing out-of-focus imaging and introducing measurement errors.

[0083] One possible implementation method is to design a profiling tool corresponding to the part 20 based on the principle of a go / no-go gauge, and use the go / no-go gauge's through end and stop end to respectively check whether the size of the part 20 exceeds the maximum and minimum sizes, thereby determining whether the part 20 is qualified. This measurement scheme has a low manual operation threshold, but the measurement accuracy is limited, and the profiling tool is more susceptible to wear under long-term contact measurement conditions, which may further cause a decrease in measurement accuracy. Another possible implementation method is to design an automatic detection device to automatically detect the part 20. Existing automatic detection equipment generally includes a feeding device for automatically loading the part 20 to be detected, a carrier plate that carries the part 20 to be detected, and a power device that drives the carrier plate. The carrier plate is driven by the power device to reciprocate and move the part 20 to be detected transported by the feeding device to a specific position for detection. However, during the detection process of the part 20, due to the vibration of the automatic detection equipment, the part 20 to be detected often moves or even flips, thus affecting the accuracy of the detection result.

[0084] In view of this, an embodiment of the present application provides a parts sorting device that can realize automatic loading, sorting, measurement, and unloading of parts 20. By using a positioning fixture, the consistency of the measurement position and posture of the part 20 can be ensured, which can overcome the vibration influence of the equipment itself and improve the detection accuracy of the part 20.

[0085] like Figure 2 , which is a schematic structural diagram of a possible parts sorting device provided in an embodiment of the present application.

[0086] In this embodiment, the parts sorting device 10 can be used to detect the size and shape of parts 20 and sort the parts 20 based on the detection results. Parts 20 can be components installed in electronic devices. This embodiment of the application does not limit the type of electronic device. The electronic device can be a mobile phone, tablet computer, smart watch, external keyboard, laptop computer, etc.

[0087] The parts sorting equipment 10 includes a loading device 11 , a detection device 12 and a sorting device 13 . The parts 20 to be detected are transported to the detection device 12 through the loading device 11 . The sorting device 13 sorts the parts 20 according to the detection results of the detection device 12 .

[0088] The loading device 11 may include a loading portion 111 and a feeding portion 112. The loading portion 111 is used to convey the parts 20 to be inspected to the feeding portion 112. The feeding portion 112 may be located on one side of the loading portion 111. The feeding portion 112 is used to convey the parts 20 conveyed by the loading portion 111 to the inspection device 12 one by one for inspection.

[0089] The detection device 12 may include a positioning portion 121 and a detection portion 122. The positioning portion 121 is used to receive the part 20 delivered by the feeding portion 112 and move the part 20 to a specific position for fixation, for example, the specific position is below the detection portion 122. The detection device 12 is used to capture an image of the part 20 fixed by the positioning portion 121, and to process the captured image and measure the characteristic dimensions. Characteristic dimension measurement can refer to measuring a specified feature in the part 20. The specified feature can be set according to the detection requirements of the part 20, and this embodiment of the application is not limited to this.

[0090] The material distributing device 13 may include a material discharging portion 131 and a material receiving portion 132. The material discharging portion 131 may correspond to the material receiving portion 132. The material discharging portion 131 may discharge the parts 20 according to the detection result of the detection portion 122, and the material receiving portion 132 is used to receive the parts 20 discharged by the corresponding material discharging portion.

[0091] like Figure 3 As shown, the loading section 111 may include a base 1111, a loading track 1112, and a vibrator 1113. The vibrator 1113 is disposed on the base 1111 and is located on one side of the loading track 1112. For example, the vibrator 1113 may be located below the loading track 1112. The vibrator 1113 may be connected to the loading track 1112. The vibrator 1113 excites the loading track 1112 to vibrate, thereby pushing the parts 20 along the loading track 1112. For example, the loading track 1112 may have a predetermined height difference between its two ends. The parts 20 are loaded from the higher end of the loading track 1112 (hereinafter referred to as the feed end). The vibrator 1113, through its own vibration, excites the loading track 1112 to vibrate, allowing the parts 20 to move toward the lower end of the loading track 1112 (hereinafter referred to as the discharge end).

[0092] In some embodiments, an automatic unloading device (eg, a robotic arm) may be configured to place / transport the part 20 to be inspected to the feed end of the loading track 1112 to achieve automatic loading of the part 20 .

[0093] In some embodiments, in order to maintain the position and posture of the part 20 as unchanged as possible during the feeding process, thereby reducing the occurrence of pile-up and jamming of the part 20 during the feeding process, the feeding track 1112 can be designed as a contoured track corresponding to the shape of the part 20. This allows the part 20 to maintain forward motion while moving along the feeding track 1112 and prevent significant left and right deflection within the track. For example, the feeding track 1112 can be provided with a groove structure designed based on the shape of the part 20. The part 20 can move forward along the groove structure. Because the groove structure corresponds to the shape of the part 20, the part 20 can only undergo slight left and right deflection within the groove structure, thereby preventing the occurrence of pile-up and jamming of the part 20 during the feeding process.

[0094] The present embodiment does not limit the type of vibrator 1113. For example, the vibrator 1113 may be a piezoelectric vibrator. The piezoelectric vibrator is fixedly connected to the feeding track 1112 and can perform up and down reciprocating motion, driving the feeding track 1112 to perform up and down reciprocating motion, thereby allowing the parts 20 to move from the higher feed end of the feeding track 1112 to the lower discharge end.

[0095] Please also see Figure 4 The part 20 moved out from the discharge end of the loading track 1112 can be moved to the feeding portion 112, and the feeding portion 112 feeds the part 20 to the positioning portion 121.

[0096] The feeding section 112 may include a stop block 1121, a carrier block 1122, a stop sensor 1123, a pusher 1124, and a distributor 1125. Parts 20 discharged from the discharge end of the feeding track 1112 can be stopped by the stop block 1121 and moved onto the carrier block 1122. Parts 20 on the carrier block 1122 can then be transported to the distributor 1125 via the pusher 1124.

[0097] For example, the supporting block 1122 is located between the stop block 1121 and the discharge end of the loading track 1112. The supporting block 1122 and the discharge end of the loading track 1112 are non-contacting. The part 20 moved out from the discharge end of the loading track 1112 can be conveyed to the supporting block 1122. The stop block 1121 can block the part 20 from continuing to move forward on the supporting block 1122 in the direction away from the discharge end of the loading track 1112. The blocked part 20 can be conveyed to the divider 1125 through the pusher 1124.

[0098] In some embodiments, the support block 1122 may be located below the discharge end of the loading track 1112 or flush with the discharge end of the loading track 1112. The present embodiment of the application does not limit the positional relationship between the support block 1122 and the discharge end of the loading track 1112, as long as the support block 1122 can be connected to the part 20 discharged through the discharge end.

[0099] In some embodiments, if the parts 20 moved out from the discharge end of the loading track 1112 can smoothly fall onto the supporting block 1122, the stop block 1121 can also be omitted.

[0100] Specifically, the stop sensor 1123 can be located on one side of the carrier block 1122, so that the stop sensor 1123 can be triggered during the process of the part 20 moving from the discharge end of the loading track 1112 to the carrier block 1122. The stop sensor 1123 can be a contact sensor or a proximity sensor, which is not limited in this embodiment of the application. For example, the stop sensor 1123 can be located above the carrier block 1122.

[0101] When the stop sensor 1123 senses the part 20, the stop sensor 1123 may output a trigger signal, which may be used to trigger the pusher 1124. The pusher 1124 may push the part 20 to the distributor 1125 in response to the trigger signal. For example, the pusher 1124 may include a push cylinder 11241 and a push piece 11242 connected to the push cylinder. The push cylinder 11241 may drive the push piece 11242 to reciprocate. The push piece 11242 is located on one side of the support block 1122, and the distributor 1125 is located on the other side of the support block 1122 and is disposed opposite to the push piece 11242. The part 20 that moves out of the discharge end of the loading track 1112 is blocked by the stop block 1121 and is located on the carrier block 1122. The stop sensor 1123 outputs a trigger signal corresponding to the part 20. Triggered by the trigger signal, the pusher cylinder 11241 pushes the pusher 11242 from its initial position toward the carrier block 1122. The pusher 11242 can then push the part 20 from the carrier block 1122 to the distributor 1125. After the pusher 11242 completes pushing the part 20, the pusher cylinder 11241 can push the pusher 11242 away from the carrier block 1122 to return to its initial position.

[0102] In some embodiments, the discharge end of the loading track 1112, the pushing piece 11242, the stop block 1121 and the divider 1125 can be arranged around the supporting block 1122. For example, the discharge end of the loading track 1112 is arranged opposite to the stop block 1121, the pushing piece 11242 is arranged opposite to the divider 1125, the pushing piece 11242 is arranged adjacent to the stop block 1121, and the divider 1125 is arranged adjacent to the stop block 1121.

[0103] In some embodiments, the divider 1125 may include a dividing cylinder 11251 and a dividing block 11252. The dividing cylinder 11251 may drive the dividing block 11252 to rotate so that the dividing block 11252 can drop the part 20 to the positioning portion 121 for fixation. The dividing block 11252 may be located on one side of the positioning portion 121 (for example, the dividing block 11252 may be located above the positioning portion 121). The dividing block 11252 includes a first surface and a second surface opposite to the first surface. The dividing cylinder 11251 may drive the dividing block 11252 to rotate so that the first surface of the dividing block 11252 is disposed opposite to the positioning portion 121, or the second surface of the dividing block 11252 is disposed opposite to the positioning portion 121, thereby dropping the part 20 to the positioning portion 121 for fixation. For another example, the first surface of the dividing block 11252 may be provided with a groove for accommodating the part 20, and the pusher 11242 pushes the part 20 from the carrier block 1122 to the groove on the first surface. When the dividing cylinder 11251 drives the dividing block 11252 to rotate clockwise or counterclockwise from the initial position to a first preset angle, the groove on the first surface is aligned with the positioning portion 121, and the part 20 falls from the groove on the first surface into the positioning portion 121. After the part 20 is dropped, the dividing cylinder 11251 again drives the dividing block 11252 to rotate clockwise or counterclockwise to a second preset angle, and the dividing block 11252 returns to the initial position to receive the next part 20 to be measured. The first preset angle and the second preset angle can be set according to actual drop requirements, and the embodiments of the present application are not limited to this.

[0104] In some embodiments, an air pressure control device (for example, an air compressor or an air pressure control valve) can be used in conjunction with the push cylinder 11241 and the dividing cylinder 11251 to control the movement of the push cylinder 11241 and the dividing cylinder 11251. For example, the trigger signal output by the stop sensor 1123 can be transmitted to the control device, and the control device can control the air pressure control valve corresponding to the push cylinder 11241 in response to the trigger signal to trigger the push cylinder 11241 to push the pusher 11242, thereby pushing the part 20 from the support block 1122 to the divider 1125. The control device can be a control module / control chip integrated in the part sorting device 10, or it can be a host computer that is communicatively connected to the part sorting device 10, and this embodiment of the present application is not limited to this. The following description takes the control device as an example of a control module integrated in the part sorting device 10. The control module may include a processing chip having data processing and control functions. The processing chip may be a microcontroller unit (MCU), a field-programmable gate array (FPGA), etc.

[0105] Please also see Figure 5 The positioning portion 121 may include a positioning turntable 1211, a positioning fixture 1212 disposed on the positioning turntable 1211, and a driver 1213 for driving the positioning turntable 1211 to rotate. The number of the positioning fixtures 1212 may be one or more, and the positioning fixtures 1212 may be disposed adjacent to the edge of the positioning turntable 1211. If there are multiple positioning fixtures 1212, the multiple positioning fixtures 1212 may be evenly distributed. The positioning turntable 1211 is driven by the driver 1213 to achieve rotation. For example, the driver 1213 includes a motor, and the motor may be connected to the positioning turntable 1211 via a transmission mechanism (e.g., gears, belts, etc.), thereby providing power for the rotation of the positioning turntable 1211. The multiple positioning fixtures 1212 may rotate as the positioning turntable 1211 rotates. For example, when part 20 needs to be blanked, driver 1213 drives positioning turntable 1211 to rotate by a third preset angle, so that one positioning fixture 1212 is aligned with dividing block 11252, and dividing block 11252 can then drop part 20 into that positioning fixture 1212. After part 20 is dropped into that positioning fixture 1212, driver 1213 can again drive positioning turntable 1211 to rotate by a fourth preset angle, so that the next positioning fixture 1212 can be aligned with dividing block 11252. The third and fourth preset angles can be set according to actual needs and are not limited in this embodiment of the present application.

[0106] Please also see Figure 6The positioning portion 121 may further include a supporting portion provided on one side of the positioning turntable 1211. The supporting portion may include a positioning block 1214 and a driving cylinder 1215. The positioning block 1214 is connected to the driving cylinder 1215. The air pressure control valve may be used in conjunction with the driving cylinder 1215 to control the movement of the driving cylinder 1215. The driving cylinder 1215 may drive the positioning block 1214 to reciprocate. When the driving cylinder 1215 drives the positioning block 1214 to move from an initial position toward a direction close to the positioning fixture 1212, the positioning block 1214 may be supported against the positioning fixture 1212. The positioning block 1214 provides a supporting force to the positioning fixture 1212, thereby enabling the part 20 dropped into the positioning fixture 1212 to be pressed by the positioning fixture 1212, thereby preventing the part 20 from moving and / or deflecting during the subsequent measurement process.

[0107] When the part 20 completes image acquisition or inspection, the driving cylinder 1215 can drive the positioning block 1214 to move in the direction away from the positioning fixture 1212 to return to the initial position. The positioning block 1214 no longer provides a supporting force to the positioning fixture 1212, and the positioning fixture 1212 withdraws from pressing the part 20, so that the part 20 can be classified and transported to the corresponding material receiving part 132 according to the measurement results of the detection part 122 on the part 20.

[0108] Please also see Figure 7 The positioning fixture 1212 may include a fixture chamber 12121, a first pressing block 12122, a second pressing block 12123, and a follower wheel 12124. The fixture chamber 12121 is a cavity with a receiving portion therein, which is used to accommodate a portion or all of the part 20. For example, a portion of the part 20 may be received in the fixture chamber 12121, while the other portion extends out of the fixture chamber 12121. Figure 7 (a) in FIG. 1 shows that the positioning fixture 1212 does not include the part 20. Figure 7 (b) in FIG. 1 shows that the positioning fixture 1212 includes the part 20 .

[0109] When the driving cylinder 1215 drives the positioning block 1214 from its initial position toward the positioning fixture 1212, the positioning block 1214 abuts against the first pressing block 12122, pushing the first pressing block 12122 to compress the part 20 along the first direction X1. Simultaneously, the first pressing block 12122 rotates the follower wheel 12124, which further pushes the second pressing block 12123 to compress the part 20 along the second direction X2. The second direction X2 is arranged at a predetermined angle to the first direction X1. For example, the angle between the second direction X2 and the first direction X1 is 90°. This is sufficient as long as the first and second pressing blocks 12122, 12123, can compress the part 20 from different directions.

[0110] Please also see Figure 8 The fixture chamber 12121 includes a first clamping arm 121212 and a second clamping arm 121213 bent from the first clamping arm 121212. The first clamping arm 121212 and the second clamping arm 121213 together form a cavity 121211. The cavity 121211 can be used to accommodate a portion of the part 20. The first clamping arm 121212, the second clamping arm 121213, the first pressing block 12122, and the second pressing block 12123 are used to clamp the part 20 in different directions. It will be understood that a carrier 121214 can be further disposed within the cavity 121211 of the fixture chamber 12121 to support the part 20, thereby further preventing the part 20 from moving. In this embodiment, the fixture chamber 12121 is a generally L-shaped structure with one side open, and the carrier 121214 is a protrusion extending from either the first clamping arm 121212 or the second clamping arm 121213 and received within the cavity 121211. Of course, the fixture chamber 12121 and the carrier 121214 can be designed to fit the shape of the part 20 to be inspected.

[0111] For example, the supporting member 121214 can be used to contact one end of the part 20 to fix one end of the part 20, and the first clamping arm 121212, the second clamping arm 121213, the first clamping block 12122 and the second clamping block 12123 are used to respectively support one side of the part 20 to achieve compression of the four sides of the part.

[0112] In some embodiments, the positioning fixture 1212 further includes a base 12125, a first sliding member 12126, and a second sliding member 12127. The fixture compartment 12121 is detachably connected to the base 12125, the first pressing block 12122 is slidably connected to the base 12125 via the first sliding member 12126, and the second pressing block 12123 is slidably connected to the base 12125 via the second sliding member 12127.

[0113] In some embodiments, the first sliding member 12126 and the second sliding member 12127 can be implemented by means of sliders and guide rails, or rollers and sliding grooves. Figure 8The diagram illustrates the first sliding member 12126 and the second sliding member 12127 implemented by sliders and guide rails. The first sliding member 12126 includes a first slider 121261 and a first guide rail 121262. The first slider 121261 is movable relative to the first guide rail 121262. The first slider 121261 is fixedly connected to the first pressing block 12122, and the first guide rail 121262 is fixedly connected to the base 12125. The second sliding member 12127 includes a second slider 121271 and a second guide rail 121272. The second slider 121271 is movable relative to the second guide rail 121272. The second slider 121271 is fixedly connected to the second pressing block 12123, and the second guide rail 121272 is fixedly connected to the base 12125. For example, the fixed connection can be achieved by fixing members such as screws and bolts.

[0114] In some embodiments, the first guide rail 121262 and the second guide rail 121272 can be arranged at a preset angle. In order to reduce sliding friction, a ball bearing can be provided between the first slider 121261 and the first guide rail 121262, and a ball bearing can be provided between the second slider 121271 and the second guide rail 121272.

[0115] In some embodiments, the base 12125 is further provided with a guide groove 121251, and the follower wheel 12124 can move along the guide groove 121251. The extension direction of the guide groove 121251 can be parallel to the extension direction of the first guide rail 121262.

[0116] In some embodiments, the positioning fixture 1212 further includes a first reset member 12128 and a second reset member 12129. The first reset member 12128 is used to reset the first pressing block 12122, and the second reset member 12129 is used to reset the second pressing block 12123. For example, after image acquisition or inspection of the part 20 is completed, the driving cylinder 1215 can drive the positioning block 1214 to move away from the positioning fixture 1212. The positioning block 1214 no longer provides a supporting force to the first pressing block 12122. The first pressing block 12122 can return to its initial position under the action of the first reset member 12128, and the second pressing block 12123 can return to its initial position under the action of the second reset member 12129, thereby releasing the pressure on the part 20. The first reset member 12128 and the second reset member 12129 can include elastic devices to reset the first pressing block 12122 and the second pressing block 12123, respectively.

[0117] In some embodiments, the first return member 12128 includes a first stopper 121281 and a first elastic member 121282. The first stopper 121281 is fixedly connected to the base 12125. One end of the first elastic member 121282 abuts against the first stopper 121281, and the other end of the first elastic member 121282 abuts against the first pressing block 12122. The second return member 12129 includes a second stopper 121291 and a second elastic member 121292. The second stopper 121291 is fixedly connected to the base 12125. One end of the second elastic member 121292 abuts against the second stopper 121291, and the other end of the second elastic member 121292 abuts against the second pressing block 12123. The first elastic member 121282 and the second elastic member 121292 may be springs or other elastic elements.

[0118] Please also see Figure 9 The first reset member 12128 may also include a first guide member 121283, the first elastic member 121282 is sleeved on the first guide member 121283, the first stop block 121281 may be provided with a first positioning structure 1212811, the first clamping block 12122 may be provided with a second positioning structure 121221, the first guide member 121283 is installed between the first positioning structure 1212811 and the second positioning structure 121221, so that the first elastic member 121282 can move along the first guide member 121283.

[0119] Please also see Figure 10 The second reset member 12129 also includes a second guide member 121293, the second elastic member 121292 is sleeved on the second guide member 121293, the second stop block 121291 is provided with a third positioning structure 1212911, the second clamping block 12123 is provided with a fourth positioning structure 121231, and the second guide member 121293 is installed between the third positioning structure 1212911 and the fourth positioning structure 121231, so that the second elastic member 121292 can move along the second guide member 121293.

[0120] For example, the first positioning structure 1212811 , the second positioning structure 121221 , the third positioning structure 1212911 , and the fourth positioning structure 121231 may be positioning holes.

[0121] The positioning fixture 1212 of the embodiment of the present application converts the unidirectional supporting force of the positioning block 1214 into multi-directional pressure on the part 20 through the follower wheel 12124, and further combines the contour positioning structure in the fixture chamber to ensure the consistency of the position and posture of the part 20 during the measurement process, thereby improving the detection accuracy of the part 20.

[0122] like Figure 11As shown in FIG, it illustrates the principle diagram of the positioning fixture 1212 pressing the part 20. Figure 11 As shown in (a), the driving cylinder 1215 drives the positioning block 1214 to press the first pressing block 12122 in the first direction X1. During the movement in the first direction X1, the first pressing block 12122 can contact the part 20, thereby pressing the part 20 in the first direction X1. At the same time, during the movement in the first direction X1, the first pressing block 12122 can drive the follower wheel 12124 to move in the first direction X1. During the movement in the first direction X1, the follower wheel 12124 further drives the second pressing block 12123 to press the part 20 in the second direction X2. The state of the part 20 after being pressed is shown in FIG. Figure 11 As shown in (b) in .

[0123] In some embodiments, as Figure 7 or Figure 11 As shown, the second clamping block 12123 may have a wedge-shaped portion 121232, and the follower wheel 12124 is arranged between the first clamping block 12122 and the wedge-shaped portion 121232. Through the wedge-shaped portion 121232, the follower wheel 12124 can drive the second clamping block 12123 to clamp the part 20 along the second direction X2 during the process of moving in the first direction X1.

[0124] like Figure 12 As shown, for the part 20 blanked to the positioning fixture 1212, the process of pressing the part 20 may include the following steps:

[0125] S1201 , the driving cylinder 1215 drives the positioning block 1214 to apply a pressing force in the first direction X1 to the first pressing block 12122 ;

[0126] S1202, the first pressing block 12122 moves along the first direction X1;

[0127] S1203, the first pressing block 12122 presses the part 20 in the first direction X1;

[0128] S1204: The first pressing block 12122 pushes the follower wheel 12124 to move along the first direction X1;

[0129] S1205: The follower wheel 12124 pushes the second pressing block 12123 to move along the second direction X2;

[0130] S1206. The second pressing block 12123 presses the part 20 in the second direction.

[0131] In some embodiments, the detection unit 122 may be located on one side of the positioning dial 1211. For example, the detection unit 122 may be located above the positioning dial 1211. Figure 13 and Figure 15 As shown, the detection unit 122 may include two structures to achieve capturing images of different measurement surfaces: structure 1: a first camera lens with a fixed working distance + a driving motor; structure 2: a second camera lens with a variable working distance.

[0132] Specifically, if Figure 13 As shown, the detection unit 122 may include a measuring camera 1221, a first camera lens 1222, a composite light source 1223, a fine-tuning stage 1224, and a drive motor 1225. The measuring camera 1221 can cooperate with the first camera lens 1222 to capture an image of the part 20, process the captured image, and measure the characteristic dimensions of the part 20 to obtain a measurement result of the part 20. For example, the first camera lens 1222 can be fixedly connected to the measuring camera 1221. It is understood that image processing and characteristic dimension measurement can also be performed by a control module in the part sorting device 10, or a host computer in communication with the part sorting device 10, and this embodiment of the present application is not limited to this.

[0133] The composite light source 1223 can be located below the first camera lens 1222. The composite light source 1223 can be a combination of a coaxial light source and an annular light source, achieving uniform lighting and clear imaging of the part 20 to be inspected. This embodiment of the application does not limit the light source combination included in the composite light source 1223; any combination sufficient to achieve the desired lighting effect for capturing an image of the part 20 is sufficient. The fine-tuning stage 1224 is used to fine-tune the position of the first camera lens 1222 in multiple degrees of freedom, ensuring that the first camera lens 1222 can capture a clear image of the part 20.

[0134] In some embodiments, because part 20 has multiple measurement surfaces, first camera lens 1222 with a fixed working distance may only be able to clearly image a certain measurement surface of part 20 at a certain position. If clear images of other measurement surfaces of part 20 are desired, the position of first camera lens 1222 must be changed. Specifically, measurement camera 1221 and first camera lens 1222 are driven up and down by drive motor 1225 to achieve clear images of multiple measurement surfaces of part 20.

[0135] like Figure 14 As shown, the measurement camera 1221 and the first camera lens 1222 move as a whole, and are driven by a drive motor to move the measurement camera 1221 and the first camera lens 1222 up and down, thereby changing the distance between the first camera lens 1222 and the measurement surface of the part 20, thereby achieving clear imaging of multiple measurement surfaces of the part 20. For example, the plane on which the part sorting device 10 is located is defined as the XY axis plane, and the direction perpendicular to the XY axis plane is the Z axis. The drive motor driving the measurement camera 1221 and the first camera lens 1222 to move up and down can refer to driving the measurement camera 1221 and the first camera lens 1222 to move up and down along the Z axis.

[0136] like Figure 14 As shown in (a) in FIG, when the part 20 is not in place, the first camera lens 1222 may be in the initial position. Figure 14 As shown in (b), when the part 20 is in place, the driving motor can drive the first camera lens 1222 to move to position 1, and the first camera lens 1222 focuses on the first measuring surface (measuring surface 1) of the part 20 to achieve a clear image of the first measuring surface of the part 20. Figure 14 As shown in (c), after completing the imaging of the first measuring surface, the driving motor can drive the first camera lens 1222 to move to position 2, and the first camera lens 1222 focuses on the second measuring surface of the part 20 to achieve clear imaging of the second measuring surface of the part 20.

[0137] In some embodiments, the part 20 being in position may mean that the positioning turntable 1211 rotates the positioning fixture 1212 loaded with the part 20 to be inspected to a designated inspection position, which may be located below the measurement camera 1221. After being rotated to the designated inspection position, the part 20 may be pressed by the positioning fixture 1212. A positioning block 1214 is positioned adjacent to the inspection position. Driven by a driving cylinder 1215, the positioning block 1214 is used to support the positioning fixture 1212 as it rotates to the inspection position. After the positioning fixture 1212 presses the part 20, the measurement camera 1221 captures an image of the part 20.

[0138] The detection unit 122 may be equipped with a distance measuring sensor to sense the distance between the first camera lens 1222 and the measurement surface of the part 20. Based on the sensing results of the distance measuring sensor, the drive motor is controlled to drive the first camera lens 1222 to a specified position, thereby focusing on each measurement surface of the part 20. It will be appreciated that the distance measuring sensor can also be used to sense whether the part 20 is in place. For example, the distance measuring sensor can be coaxially arranged with the first camera lens 1222 to determine whether the part 20 is in place and to measure the distance between the measurement surface of the part 20 and the first camera lens 1222. This application does not limit the type of distance measuring sensor and the first camera lens. For example, the distance measuring sensor can be a laser distance measuring sensor, and the first camera lens 1222 can be a solid telecentric lens.

[0139] like Figure 15 As shown, the inspection unit 122 may include a measuring camera 1221, a second camera lens 1226, a composite light source 1223, a fine adjustment stage 1224, and a distance sensor 1227. The second camera lens 1226 may be fixedly connected to the measuring camera 1221 and may have a lens with a different magnification range according to the actual inspection requirements of the part 20.

[0140] In some embodiments, the second camera lens 1226 may be configured with a lens controller to dynamically change the working distance of the second camera lens 1226. For example, the lens controller may be a lens diopter controller, and the diopter of the second camera lens 1226 may be adjusted by inputting a corresponding control voltage to the lens diopter controller, thereby changing the working distance of the second camera lens 1226.

[0141] Distance sensor 1227 is used to sense the distance between second camera lens 1226 and the measurement surface of part 20. This allows the control module to output a specific control voltage to the lens diopter controller based on the distance sensed by distance sensor 1227, thereby changing the working distance of second camera lens 1226. Distance sensor 1227 can be coaxially arranged with second camera lens 1226 to determine whether part 20 is in place and to measure the distance between the measurement surface of part 20 and second camera lens 1226.

[0142] This application does not limit the type of second camera lens. For example, second camera lens 1226 can be a liquid telecentric lens. By inputting a corresponding control voltage to the lens diopter controller, the curvature of the liquid surface of the liquid telecentric lens is changed, thereby adjusting the diopter of the liquid telecentric lens. The change in diopter causes the working distance of the liquid telecentric lens to change, achieving clear imaging of different measurement surfaces of part 20. While maintaining rich image details of part 20, compared with solutions that drive the camera lens movement via a drive motor, it can avoid the influence of self-excited vibration caused by the reciprocating motion of the camera lens, thereby avoiding measurement errors caused by vibration.

[0143] like Figure 16 The figure shows how to dynamically adjust the working distance of the second camera lens 1226, using a liquid telecentric lens as an example. The lens diopter controller adjusts the voltage of the conductive liquid in the liquid telecentric lens to change the curvature of the conductive liquid surface, thereby adjusting the diopter of the liquid telecentric lens. The liquid telecentric lens can correspond to different working distances at different diopters.

[0144] The detection unit 122 may include a semi-reflective prism (not shown) for use with the distance measuring sensor 1227. Incident light (e.g., laser light) emitted by the distance measuring sensor 1227 may be reflected by the semi-reflective prism and reach each measuring surface of the part 20. The laser light reflected by each measuring surface may then be reflected back to the distance measuring sensor 1227, facilitating acquisition of point cloud information of the part 20 and distance calculation, thereby obtaining the distance between the second camera lens 1226 and each measuring surface of the part 20. Optionally, the semi-reflective prism in this embodiment of the present application may be a triangular prism, and this embodiment of the present application does not limit the shape of the semi-reflective prism.

[0145] like Figure 16 As shown in (a) in FIG, when the part 20 is not in place, the control module may not output the control voltage to the second camera lens 1226, or may output a preset control voltage V0 to the second camera lens 1226. Figure 16 As shown in (b), when the part 20 is in place, the control module can output a first control voltage V1 to the second camera lens 1226 based on the distance between the second camera lens 1226 and the first measuring surface of the part 20, so that the second camera lens 1226 focuses on the first measuring surface of the part 20, thereby achieving a clear image of the first measuring surface of the part 20. Figure 16 As shown in (c), after completing the imaging of the first measuring surface, the control module can output a second control voltage V2 to the second camera lens 1226 based on the distance between the second camera lens 1226 and the second measuring surface of the part 20, so that the second camera lens 1226 focuses on the second measuring surface of the part 20, thereby achieving clear imaging of the second measuring surface of the part 20.

[0146] like Figure 17 As shown, taking the detection unit 122 performing image acquisition of the part 20 and the control module processing the image acquired by the detection unit 122 and measuring the characteristic dimensions as an example, for the part 20 blanked to the positioning fixture 1212, the measurement process of the part 20 may include the following steps:

[0147] S1701 , the air cylinder 1215 drives the positioning block 1214 to press against the positioning fixture 1212 , so that the positioning fixture 1212 presses the part 20 ;

[0148] S1702: If the inspection unit 122 includes a first camera lens 1222 with a fixed working distance and a drive motor 1225, the drive motor 1225 drives the measurement camera 1221 and the first camera lens 1222 to move to a position corresponding to a measurement surface of the part 20 to focus on the measurement surface.

[0149] S1703: The measuring camera 1221 collects a focal plane image focused on the measuring surface;

[0150] S1704, the measuring camera 1221 stores the collected focus plane image;

[0151] In some embodiments, after the measuring camera 1221 completes the acquisition or storage of the focal plane image of a measuring surface, the driving motor 1225 can drive the measuring camera 1221 and the first camera lens 1222 to move to a position corresponding to another measuring surface of the part 20 to focus on the other measuring surface and acquire the focal plane image, and store the acquired focal plane image.

[0152] S1705: After completing the acquisition and storage of the focus plane images of all measurement surfaces of the part 20, the control module performs a fusion process on the multiple focus plane images to obtain a fused image corresponding to the part 20;

[0153] In some embodiments, due to factors such as lens design, improper installation, or shooting environment, some focal plane images may be deformed. Before fusing multiple focal plane images, distortion correction can be performed on the deformed focal plane images to align the multiple focal plane images to be fused.

[0154] In some embodiments, the focused plane image is an overall image of part 20, but in each focused plane image, only the focused measurement surface is clearly imaged, while the images of other non-focused measurement surfaces are blurred. Fusion of multiple focused plane images is equivalent to fusing the clearly imaged measurement surfaces in each focused plane image to obtain a fused image in which all measurement surfaces of part 20 are clearly imaged. For example, by optimizing the clarity of the focused plane images, the clearly imaged measurement surfaces in the focused plane images can be determined. Then, during subsequent image fusion, the clearly imaged measurement surfaces in each focused plane image are fused.

[0155] like Figure 18 As shown in FIG, taking a part 20 including three measuring surfaces at different heights as an example, the three measuring surfaces of the part 20 are focused respectively, and three focal plane images I1, I2, and I3 are collected. Figure 18 It can be seen from the figure that in each focus plane image I1, I2, and I3, only the focused measurement surface is clearly imaged, while the images of other non-focused measurement surfaces are blurred and are not suitable for feature size measurement.

[0156] like Figure 19 As shown, for Figure 18 The fused image I11 is obtained by fusing the three focal plane images I1, I2, and I3 shown in FIG. Figure 19 It can be seen from the figure that each measuring surface of the part 20 in the fused image I11 is clearly imaged, and is therefore suitable for feature size measurement.

[0157] S1706: The control module measures the characteristic dimensions of the part 20 based on the fused image, and determines the sorting result of the part 20 according to the measurement result;

[0158] In some embodiments, the control module determining the sorting result of the part 20 may refer to determining to which receiving box the part 20 needs to be dropped.

[0159] S1707: If the detection unit 122 includes a second camera lens 1226 with a variable working distance, the distance sensor 1227 sends distance information between the second camera lens 1226 and a measuring surface of the part 20 to the control module;

[0160] S1708: The control module outputs a control voltage corresponding to the distance information to the lens diopter controller;

[0161] S1709: The measuring camera 1221 collects a focal plane image focused on the measuring surface;

[0162] S1710, the measuring camera 1221 stores the collected focal plane image;

[0163] S1711. After completing the acquisition and storage of the focus plane images of all measurement surfaces of the part 20, the control module performs a fusion process on the multiple focus plane images to obtain a fused image corresponding to the part 20.

[0164] S1712: The control module measures the characteristic dimensions of the part 20 based on the fused image, and determines the sorting result of the part 20 according to the measurement result.

[0165] S1713. After determining the sorting result of the part 20, the driving cylinder 1215 drives the positioning block 1214 to return to the initial position, so that the positioning fixture 1212 withdraws from pressing the part 20.

[0166] like Figure 20 As shown, the material distribution device 13 may include multiple material discharge sections 131 and multiple material receiving sections 132. The multiple material discharge sections 131 may be disposed below or around the positioning turntable 1211. For example, if the fixture bin 12121 accommodates all of the parts 20, the multiple material discharge sections 131 are preferably disposed below the positioning turntable 1211 to allow the parts 20 to be blown out / ejected from the fixture bin 12121. If the fixture bin 12121 accommodates a portion of the parts 20, the multiple material discharge sections 131 may be disposed around the positioning turntable 1211 to allow the parts 20 to be blown out / ejected from the fixture bin 12121. The multiple material receiving sections 132 are disposed around the positioning turntable 1211. Taking blowing the parts 20 out of the fixture bin 12121 as an example, the material discharge section 131 may include a blower to blow the parts 20 out of the fixture bin 12121.

[0167] In some embodiments, the plurality of unloading parts 131 may also be connected to a control module for communication so as to control each unloading part 131 to blow or eject the part 20 from the fixture bin 12121 through the control module.

[0168] Each receiving portion 132 may include a stop block 1321, a blanking track 1322, and a receiving box 1323. One end of the blanking track 1322 may be fixedly connected to the corresponding stop block 1321, and the other end of the blanking track 1322 may be located on one side of the corresponding receiving box 1323 (for example, the other end of the blanking track 1322 may be flush with the corresponding receiving box 1323, or located above the corresponding receiving box 1323), so that the parts 20 can be smoothly blanked into the corresponding receiving box 1323 via the blanking track 1322.

[0169] In some embodiments, the number of unloading sections 131 and receiving sections 132 can be set based on the sorting rules for the parts 20 to be inspected, and this is not limited in this embodiment of the present application. For example, if the sorting rules for the parts 20 to be inspected include N sorting positions, N+1 unloading sections 131 and N+1 receiving sections 132 can be arranged accordingly, with one unloading section 131 corresponding to one receiving section 132, and the N receiving sections 132 corresponding to each of the N sorting positions. The remaining receiving section 132 is used to receive parts 20 that do not fall into the N sorting positions. The sorting position corresponding to this receiving section 132 can also be called a defective position (NG position). The value of N can be set based on actual measurement requirements, and this is not limited in this embodiment of the present application.

[0170] In some embodiments, the material distributing device 13 may further include a support platform 133 , and the plurality of material discharging portions 131 and the plurality of material receiving portions 132 may be disposed on the support platform 133 .

[0171] After the inspection unit 122 completes measuring the part 20, the driving cylinder 1215 drives the positioning block 1214 to move away from the positioning fixture 1212. The positioning block 1214 no longer provides a supporting force to the positioning fixture 1212, and the positioning fixture 1212 withdraws from pressing the part 20. In this situation, the positioning turntable 1211 rotates the positioning fixture 1212 loaded with the part 20 to a designated unloading position. The unloading position may be when the positioning fixture 1212 loaded with the part 20 is rotated to one side of the designated unloading section 131 (for example, above the designated unloading section 131), so that the designated unloading section 131 can blow / eject the part 20 from the positioning fixture 1212. The blown / ejected part 20 is blocked by the corresponding stop block 1321 and smoothly falls into the corresponding unloading track 1322. The part 20 then falls into the corresponding receiving box 1323 through the unloading track 1322. For example, the designated blanking portion 131 may refer to the blanking portion 131 determined based on the measurement results of the part 20 .

[0172] like Figure 21 As shown, the process of the parts sorting device 10 performing loading inspection and unloading sorting of a part 20 can be described as being achieved through the following steps:

[0173] S2101, the vibrator 1113 excites the loading track 1112 to vibrate, so as to load the part 20;

[0174] S2102: The part 20 moved out from the loading track 1112 is stopped by the stop block 1121 and moves onto the carrying block 1122;

[0175] S2103 , the pusher 1124 pushes the part 20 on the carrier block 1122 to the distributor 1125 in response to the trigger signal of the stop sensor 1123 ;

[0176] S2104, the distributor 1125 drops the part 20 to the positioning fixture 1212;

[0177] S2105 , the control module controls the positioning turntable 1211 to rotate the positioning fixture 1212 to a designated detection position;

[0178] In some embodiments, the inspection position may refer to a position directly below the measurement camera 1221 or a position within the viewing angle of the measurement camera 1221 , so that the measurement camera 1221 can image the part 20 .

[0179] S2106 , the air cylinder 1215 drives the positioning block 1214 to press against the positioning fixture 1212 , and the positioning fixture 1212 presses the part 20 ;

[0180] S2107, the distance measuring sensor 1227 detects whether the part 20 reaches the designated detection position;

[0181] S2108. When the part 20 reaches the designated inspection position, the measuring camera 1221 focuses on each measuring surface of the part 20 in sequence to obtain a focus plane image corresponding to each measuring surface.

[0182] S2109: The control module performs a fusion process on the multiple focus plane images of the part 20 to obtain a fused image corresponding to the part 20;

[0183] S2110, the control module measures the characteristic dimensions of the part 20 based on the fused image;

[0184] S2111, the air cylinder 1215 drives the positioning block 1214 back to the initial position, and the positioning fixture 1212 withdraws from pressing the part 20;

[0185] S2112. The control module controls the positioning turntable 1211 to rotate the positioning fixture 1212 to a specified unloading position based on the size measurement result.

[0186] In some embodiments, if the part sorting equipment 10 includes N+1 unloading sections 131 and N+1 receiving sections 132, the unloading position includes N+1. The control module can determine which receiving box 1323 the part 20 needs to be unloaded to based on the size measurement results of the part 20, and then control the positioning turntable 1211 to rotate the positioning fixture 1212 to the unloading position corresponding to the receiving box 1323, so as to unload through the corresponding unloading section 131.

[0187] S2113 , the unloading portion 131 located at the designated unloading position blows / ejects the part 20 from the positioning fixture 1212 , and the blown / ejected part 20 falls into the corresponding receiving box 1323 via the blanking track 1322 .

[0188] The parts sorting equipment of the embodiment of the present application can achieve multi-directional pressing of the part 20 through the positioning fixture, ensuring the position consistency of the part 20 during the measurement process, and can achieve high-precision size detection of the part 20 in conjunction with a high-precision measuring camera (for example, measurement accuracy can reach the micron level). By arranging multiple positioning fixtures on the positioning turntable, the loading, measurement and unloading of the part 20 can be parallelized, the measurement efficiency is high, and automatic multi-speed sorting can be achieved according to the measurement results of the part 20, which is convenient for the subsequent assembly and use of the part 20.

[0189] The embodiment of the present application also provides a parts detection device, which is used to perform size detection on the parts 20. After being detected by the parts detection device, the parts 20 can be sorted manually or by other sorting equipment.

[0190] For example, the parts inspection equipment may include the above-mentioned loading device 11 and inspection device 12 , and the part 20 to be inspected is transported to the inspection device 12 through the loading device 11 for inspection to obtain the inspection result of the part 20 .

[0191] In some embodiments, the parts inspection equipment may also have a blanking function. For example, the parts inspection equipment may also include the above-mentioned blanking part 131 and the above-mentioned receiving part 132. The blanking part 131 is used to blank the inspected parts 20, and the receiving part 132 is used to receive the blanked parts 20.

[0192] In some embodiments, the parts inspection equipment may also transmit the inspected parts 20 and the inspection results of the parts 20 to the sorting equipment so that the parts 20 can be sorted by the sorting equipment. For example, the parts inspection equipment may be communicatively connected with the sorting equipment to facilitate the transmission of the inspection results of the parts 20. The parts inspection equipment may also transmit the inspected parts 20 to the sorting equipment through a transmission device, and the sorting equipment may then sort the parts 20 based on the inspection results of the parts 20.

[0193] See Figure 22As shown, the control module 200 involved in the embodiment of the present application is introduced below. The control module 200 can be a component integrated in the part sorting device 10, or a component or device set independently of the part sorting device 10, for example, a host computer connected to the part sorting device 10 for communication. Figure 22 As shown, the control module 200 may include a controller 2001, a memory 2002, a communication bus 2003, and a communication interface 2004. The controller 2001, the memory 2002, and the communication interface 2004 may communicate with each other via the communication bus 2003. The memory 2002 is used to store one or more computer programs. The one or more computer programs are configured to be executed by the controller 2001. The one or more computer programs include instructions. Execution of the instructions by the controller 2001 enables the control module 200 to implement the control functions described above.

[0194] It is understood that the structure shown in this embodiment does not constitute a specific limitation on the control module 200. In other embodiments, the control module 200 may include more or fewer components than shown, or combine or separate some components, or arrange the components differently.

[0195] The controller 2001 may include one or more control units, for example, the controller 2001 may include a microcontroller unit (MCU), a field-programmable gate array (FPGA), a digital signal processor (DSP), etc.

[0196] Controller 2001 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in controller 2001 is a high-speed cache memory. This memory can store instructions or data that have just been used or are being recycled by controller 2001. If controller 2001 needs to use the same instruction or data again, it can directly access it from this memory. This avoids repeated accesses, reduces the waiting time of controller 2001, and thus improves system efficiency.

[0197] In some embodiments, the controller 2001 may include one or more interfaces, such as an inter-integrated circuit (I2C) interface, a universal asynchronous receiver / transmitter (UART) interface, a general-purpose input / output (GPIO) interface, and / or a USB interface.

[0198] In some embodiments, the memory 2002 may include a high-speed random access memory and may also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0199] In some embodiments, the communication bus 2003 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 22 The communication bus 2003 may include a path for transmitting information between various components of the control module 200 (eg, the controller 2001, the memory 2002, and the communication interface 2004).

[0200] In some embodiments, the communication interface 2004 uses a transceiver module such as, but not limited to, a network interface card or a transceiver to implement communication between the control module 200 and other devices or a communication network.

[0201] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0202] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0203] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0204] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0205] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program code.

[0206] 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 of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A parts detection device, characterized in that: The parts detection equipment comprises a feeding device and a detection device, wherein the feeding device is used to convey parts to the detection device, and the detection device comprises a positioning part and a detection part, wherein the positioning part comprises a positioning turntable and a supporting part arranged on one side of the positioning turntable, and a positioning fixture is fixedly arranged on the positioning turntable. The positioning fixture includes a fixture bin, a first clamping block, a second clamping block and a follower wheel, the fixture bin is used to carry the parts conveyed by the feeding device, the follower wheel is arranged between the first clamping block and the second clamping block and respectively abuts against the first clamping block and the second clamping block, the abutting portion is used to apply a abutting force to the first clamping block, the first clamping block moves in a first direction based on the abutting force to apply a first clamping force to the parts in the fixture bin, and the first clamping block drives the second clamping block to move in a second direction through the follower wheel during the movement of the first clamping block in the first direction, so that the second clamping block applies a second clamping force to the parts in the fixture bin, and the first direction and the second direction are arranged at a preset angle, The detection part is arranged on one side of the positioning turntable, and the detection part is used to detect the parts in the fixture bin.

2. The parts detection device according to claim 1, characterized in that: The clamping bin includes a first clamping arm and a second clamping arm bent from the first clamping arm. The first clamping arm, the second clamping arm, the first clamping block and the second clamping block are used to clamp the part in different directions.

3. The parts detection device according to claim 2, characterized in that: The clamping chamber is further provided with a bearing member, which protrudes from any one of the first clamping arm or the second clamping arm and is used for bearing the part.

4. The parts detection device according to claim 2, characterized in that: The positioning fixture also includes a base, a first sliding member and a second sliding member. The fixture compartment is detachably connected to the base, the first clamping block is slidably connected to the base via the first sliding member, and the second clamping block is slidably connected to the base via the second sliding member.

5. The parts detection device according to claim 4, characterized in that: The first sliding member includes a first slider and a first guide rail. The first slider can move relative to the first guide rail. The first slider is fixedly connected to the first pressing block. The first guide rail is fixedly connected to the base. The second sliding member includes a second slider and a second guide rail. The second slider can move relative to the second guide rail. The second slider is fixedly connected to the second pressing block. The second guide rail is fixedly connected to the base.

6. The parts detection device according to claim 5, characterized in that: The positioning fixture also includes a first reset member, which includes a first stopper and a first elastic member. The first stopper is fixedly connected to the base, one end of the first elastic member abuts against the first stopper, and the other end of the first elastic member abuts against the first clamping block.

7. The parts detection device according to claim 6, characterized in that: The first reset member also includes a first guide member, the first elastic member is sleeved on the first guide member, the first stop block is provided with a first positioning structure, the first clamping block is provided with a second positioning structure, and the first guide member is installed between the first positioning structure and the second positioning structure.

8. The parts detection device according to claim 5, characterized in that: The positioning fixture also includes a second reset member, which includes a second stopper and a second elastic member. The second stopper is fixedly connected to the base, one end of the second elastic member abuts against the second stopper, and the other end of the second elastic member abuts against the second clamping block.

9. The parts detection device according to claim 8, characterized in that: The second reset member also includes a second guide member, the second elastic member is sleeved on the second guide member, the second stop block is provided with a third positioning structure, the second clamping block is provided with a fourth positioning structure, and the second guide member is installed between the third positioning structure and the fourth positioning structure.

10. The parts detection device according to claim 4, characterized in that: The base is also provided with a guide groove, the follower wheel moves along the guide groove, and the extending direction of the guide groove is the same as the first direction.

11. The parts detection device according to claim 1, characterized in that: A plurality of positioning fixtures are fixedly arranged on the positioning turntable, the loading device comprises a loading part and a feeding part, the loading part comprises a base, a loading track and a vibrator, the vibrator is arranged on the base and is located on one side of the loading track, the loading track is connected to the vibrator, the vibrator is used to drive the loading track to vibrate so that the parts move in the loading track, and the feeding part is used to cooperate with the loading track to transport the parts transported by the loading track to the plurality of positioning fixtures one by one.

12. The parts detection device according to claim 11, characterized in that: The loading track includes a feeding end and a discharging end, the parts move from the feeding end to the discharging end, and there is a preset height difference between the feeding end and the discharging end.

13. The parts detection device according to claim 12, characterized in that: The feeding part includes a stop block, a supporting block, a pusher and a divider. The supporting block is located between the stop block and the discharge end of the loading track, and between the pusher and the divider. The stop block cooperates with the loading track so that the parts moved out from the discharge end of the loading track can be located on the supporting block. The pusher is used to push the parts located on the supporting block to the divider, and the divider is used to transport the parts to a positioning fixture among the multiple positioning fixtures.

14. The parts detection device according to claim 13, characterized in that: The feeding part also includes a stop sensor, which is arranged on one side of the supporting block. The stop sensor is used to output a trigger signal when it detects the presence of parts on the supporting block. The trigger signal is used to trigger the pusher to push the parts on the supporting block to the distributor.

15. The parts detection device according to claim 13, characterized in that: The divider includes a divider cylinder and a divider block connected to the divider cylinder, the divider block is arranged on one side of the positioning turntable, the pusher is used to push the parts on the supporting block to the divider block, and the divider cylinder can drive the divider block to rotate so as to drop the parts on the divider block to a positioning fixture among the multiple positioning fixtures.

16. The parts detection device according to claim 13, characterized in that: The parts detection equipment also includes a control module, which is communicatively connected to the positioning turntable. The control module is used to control the rotation of the positioning turntable so that the divider is aligned with the first positioning fixture in an idle state among the multiple positioning fixtures, and the divider is used to drop the part to the first positioning fixture.

17. The parts detection device according to claim 16, characterized in that: The detection unit includes a first camera module and a driving motor, the driving motor is used to drive the first camera module to move toward the direction approaching the positioning turntable or away from the positioning turntable, the first camera module includes a first camera lens with a fixed working distance, the part includes a plurality of measuring surfaces with different heights, the control module is also communicatively connected with the driving motor, and the control module is used to control the driving motor to drive the first camera module to move based on the distance between the first camera lens and each measuring surface of the part, so that the first camera module focuses and images each measuring surface respectively.

18. The parts detection device according to claim 16, characterized in that: The detection unit includes a second camera module, the second camera module includes a second camera lens with a variable working distance and a lens diopter controller, the part includes a plurality of measuring surfaces with different heights, the control module is also communicatively connected to the lens diopter controller, and the control module is used to output a control voltage corresponding to each measuring surface to the lens diopter controller based on the distance between the second camera lens and each measuring surface, so as to adjust the working distance of the second camera lens so that the second camera module focuses and images each measuring surface respectively.

19. The parts detection device according to claim 17 or 18, characterized in that: The control module is used to fuse the multiple images obtained by the imaging of the detection part to obtain a fused image, and to perform size detection and classification on the parts based on the fused image. The multiple images correspond one-to-one to the multiple measuring surfaces with different heights.

20. The parts detection device according to claim 19, characterized in that: The control module is used to preprocess the multiple images and fuse the preprocessed images, the preprocessing includes distortion correction processing and clarity optimization processing, the distortion correction processing is used to align the multiple images, and the clarity optimization processing is used to determine the measurement surface with clear imaging in the multiple images.

21. The parts inspection device according to claim 18, characterized in that: The detection unit also includes a distance measuring sensor and a semi-reflective prism arranged opposite to the distance measuring sensor, the semi-reflective prism is used to reflect the measurement waveform emitted by the distance measuring sensor to the part, and the control module is also communicatively connected with the distance measuring sensor, and the distance measuring sensor is used to transmit the distance information between the second camera lens and each measuring surface to the control module.

22. The parts inspection device according to claim 1, characterized in that: The supporting portion includes a driving cylinder and a positioning block connected to the driving cylinder. Before the parts in the fixture bin are inspected, the driving cylinder is used to drive the positioning block to move in the first direction to apply a supporting force to the first clamping block. After the parts in the fixture bin are inspected, the driving cylinder is used to drive the positioning block to move in a direction opposite to the first direction to withdraw from the support to the first clamping block.

23. A parts sorting device, characterized in that: It comprises a material dividing device and a part detection equipment as described in any one of claims 1 to 22, wherein the part detection equipment is used to detect parts, and the material dividing device is used to divide the parts according to the detection results of the parts.

24. The parts sorting device according to claim 23, characterized in that: The material dividing device includes multiple unloading parts and multiple receiving parts corresponding to the multiple unloading parts one by one. The part detection equipment is used to control the rotation of the positioning turntable based on the detection result of the part, so that the fixture bin carrying the part is aligned with the unloading part corresponding to the detection result, and the part is unloaded from the fixture bin through the corresponding unloading part and falls into the corresponding receiving part.

Images