A 3C product flatness and height difference detection device

Abstract

A kind of 3C product flatness and height difference detection device, including an operating table, operating table is provided with: conveying mechanism, conveying mechanism is used to convey the 3C product along the direction determined, it includes with to be used to feed the feeding part and with the unloading part of unloading;Detection fixture, the detection fixture is arranged between the feeding part and unloading part;Transfer mechanism, the transfer mechanism is suspended above the conveying mechanism;Detection mechanism, it includes from top to bottom to the 3C product is irradiated 3D vision module, to carry out stereovision detection to the 3C product.In the process of detection, transfer mechanism is grabbed and placed to the detection fixture on the 3C product above the feeding part, to make the 3C product to be detected and conveying mechanism separate each other, so as to guarantee the 3C product to be detected in stable state, in the process of detection, can ensure the precision of detection.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a device for testing the flatness and height difference of 3C products. Background Technology

[0002] 3C products typically refer to small household appliances such as computers, tablets, mobile phones, and digital cameras. These electronic products often have many control boards and mounting boards during the manufacturing process, especially the back cover of the electronic products.

[0003] To ensure the aesthetics and assembly precision of electronic products, the aforementioned boards typically have flatness requirements. Specifically, the height difference between various target points on the surface of the entire board needs to be kept within a predetermined tolerance range. If it exceeds the range, it will affect the normal assembly of the electronic product and its overall appearance.

[0004] Currently, the flatness and height difference inspection of board parts in 3C products typically relies on 3D laser sensors or 3D vision cameras. This involves placing the 3C product under the camera or laser sensor, which then visually identifies the product, generating 3D data. The system then analyzes this data to determine if the product is within a predetermined range. The inspection process usually uses a conveyor belt for loading. After the 3C product is moved under the camera or laser sensor, the conveyor belt stops, and the camera or laser sensor illuminates the product for visual identification. However, the vibration of the conveyor belt or other conveying mechanism during transport and after pauses can affect the inspection results, leading to low accuracy.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a device for detecting the flatness and height difference of 3C products, so as to overcome the defects mentioned in the background art.

[0007] A device for detecting the flatness and height difference of 3C products includes an operating table, on which are arranged:

[0008] A conveying mechanism for conveying the 3C products along a predetermined direction, comprising a feeding section for feeding and a discharging section for discharging, wherein the feeding section and the discharging section are spaced apart from each other.

[0009] An inspection fixture is disposed between the loading section and the unloading section, and includes a fixture plate for placing the 3C product, and a positioning area for receiving the 3C product is provided on the fixture plate.

[0010] The transfer mechanism is suspended above the conveying mechanism and includes a dual-station material picker and a transfer component that drives the dual-station material picker to reciprocate along the conveying direction and the up and down direction. The dual-station material picker includes a frame and material pickers located at both ends of the frame length. Several suction nozzles are provided on the material pickers.

[0011] The testing facility is located next to the testing fixture and includes a 3D vision module that illuminates the 3C product from top to bottom for stereoscopic visual inspection of the 3C product.

[0012] Furthermore, the detection mechanism is located beside the conveying mechanism;

[0013] The testing fixture also includes a first linear module, with its two ends located below the conveying mechanism and the testing mechanism, respectively. The fixture plate is mounted on the first module and driven to reciprocate between the conveying mechanism and the testing device.

[0014] Furthermore, when the jig plate is positioned between the loading section and the unloading section in the first linear module drive, the jig plate is at the same horizontal height as the loading section and the unloading section.

[0015] Furthermore, the loading and unloading sections have the same structure, each including two opposing frames. At least two drive shafts are arranged on the two frames, and a drive motor that is connected to one of the drive shafts is fixedly installed on the frame. A conveyor belt is mounted on the at least two drive shafts, and the surface of the conveyor belt defines a conveying channel for conveying the 3C products.

[0016] Furthermore, a guiding component is also provided above the feeding section. The guiding component is used to guide the conveying direction of the 3C product so that it is accurately conveyed to the position corresponding to the transfer mechanism. The guiding component includes two opposing limiting plates that extend along the conveying direction of the feeding section. The guiding component also includes an adjusting rod that is detachably connected to the frame and the limiting plates at both ends by fasteners.

[0017] Furthermore, an adjustment groove extending along the length of the adjustment rod is provided on one end of the adjustment rod corresponding to the frame. The adjustment groove is called a countersunk structure, and the fastener is limited to slide within the adjustment groove.

[0018] Furthermore, both the loading and unloading sections are equipped with baffles at their ends, and the two ends of the baffles are detachably connected to the frame.

[0019] Furthermore, the transfer component includes:

[0020] The second linear module is suspended above the conveying mechanism, with its two ends located above the loading section and the unloading section, respectively.

[0021] The third linear module is disposed above the second linear module and is driven to reciprocate between the loading section and the unloading section. The dual-station material handling frame is connected to the third linear module and is driven by the third linear module to reciprocate in the vertical direction.

[0022] Furthermore, rotary cylinders are fixedly installed on both ends of the frame, and the material handling head is driven to rotate on the output shaft of the rotary cylinder.

[0023] Furthermore, the detection mechanism also includes a motion component that drives the 3D vision module to reciprocate in the horizontal and vertical directions. The motion component includes a fourth linear module arranged in the horizontal direction and a fifth linear module arranged in the vertical direction on the fourth linear module. The 3D vision module is mounted on the fifth linear module.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] During the inspection process using the testing equipment provided by this technical solution, the 3C product to be inspected is conveyed by the loading section and then transported to the position corresponding to the transfer mechanism. The transfer mechanism then picks it up and places it within the positioning area of ​​the fixture plate. At this time, the 3D vision inspection module of the inspection mechanism performs visual inspection on the 3C product that has been fixed in the positioning area, and completes the identification and detection of the flatness and height difference of the 3C product. In this embodiment, the 3D vision module can be a 3D laser sensor or a 3D vision camera, thereby enabling the three-dimensional inspection of the workpiece. In the technical solution provided in this embodiment, the transfer mechanism picks up and transfers the 3C products conveyed by the loading section onto the testing fixture. This separates the products to be tested from the conveying mechanism, ensuring that the conveying or movement of the mechanism does not affect the state of the workpiece to be tested, keeping it in a stable state and thus guaranteeing the accuracy of the test. Furthermore, by setting up a dual-station picking rack, the picking operation at the loading section and the unloading operation at the testing fixture can be performed simultaneously, improving the loading and unloading efficiency of the 3C products to be tested. Additionally, the conveying mechanism is designed as a segmented structure, allowing the loading and unloading operations to proceed independently. After testing, defective 3C products can be manually unloaded and collected. In this case, the unloading section does not need to operate. By separating the loading and unloading operations, the effectiveness of transporting 3C products is improved, and mutual interference is avoided.

[0026] This utility model provides a detection device for detecting the flatness and height difference of 3C products. During the detection process, the transfer mechanism picks up the 3C product located on the loading part and places it on the detection fixture, thereby separating the 3C product to be detected from the conveying mechanism and fixing the positioning area on the fixture plate, thus ensuring that the 3C product to be detected is in a stable state. During the detection process of the vision module, the detection accuracy can be ensured.

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the conveying mechanism in this utility model.

[0030] Figure 3 This is a schematic diagram of the conveying mechanism and the transfer mechanism in this utility model.

[0031] Figure 4 This is a schematic diagram of the transfer mechanism in this utility model.

[0032] Figure 5 This is a schematic diagram of the detection mechanism and detection fixture in this utility model. Detailed Implementation

[0033] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, the use of terms such as "first" and "second" in the embodiments of this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0036] This utility model embodiment provides a detection device for detecting the flatness and height difference of a 3C product. During the detection process, the transfer mechanism 400 picks up the 3C product located on the loading part 210 and places it on the detection fixture 300, thereby separating the 3C product to be detected from the conveying mechanism 200. The positioning area 311 on the fixture plate 310 is fixed, thereby ensuring that the 3C product to be detected is in a stable state. During the detection process of the vision module 510, the detection accuracy can be ensured.

[0037] Specifically, such as Figure 1-5As shown, this embodiment provides a 3C product flatness and height difference detection device, including an operating table 100, on which are arranged a conveying mechanism 200 for conveying the 3C product to be tested, a detection fixture 300 for loading the 3C product to be tested, a transfer mechanism 400 for transferring the 3C product to be tested from the conveying mechanism 200 to the detection fixture 300, and a detection mechanism 500 for detecting the 3C product loaded on the detection fixture 300. Specifically, the conveying mechanism 200 is used to convey the 3C product in a predetermined direction, and includes a loading part 210 for loading and a unloading part 220 for unloading, and the loading part 210 and the unloading part 220 are arranged at intervals; the detection fixture 300... The 0 is located between the loading section 210 and the unloading section 220, and includes a fixture plate 310 for placing 3C products. A positioning area 311 for receiving 3C products is provided on the fixture plate 310. The transfer mechanism 400 is suspended above the conveying mechanism and includes a dual-station picking rack 410 and a transfer component 420 for driving the dual-station picking rack 410 to move back and forth along the conveying direction and the up and down direction. The dual-station picking rack 410 includes a frame 411 and picking heads 412 located at both ends of the length of the frame 411. Several suction nozzles 413 are provided on the picking heads 412. The detection mechanism 500 is located next to the detection fixture 300 and includes a 3D vision module 510 that illuminates the 3C products from top to bottom for stereoscopic vision detection of the 3C products.

[0038] During the inspection process, the 3C product to be inspected is conveyed by the loading section 210 and then conveyed to the position corresponding to the transfer mechanism 400. The transfer mechanism 400 then grabs the product and places it into the positioning area 311 of the fixture plate 310. At this time, the 3D vision inspection module of the inspection mechanism 500 performs visual inspection on the 3C product that has been fixedly positioned in the positioning area 311, and completes the identification and detection of the flatness and height difference of the 3C product. In this embodiment, the 3D vision module 510 can be a 3D laser sensor or a 3D vision camera, thereby enabling the three-dimensional inspection of the workpiece. In the technical solution provided in this embodiment, the transfer mechanism 400 picks up the 3C products conveyed by the loading section 210 and transfers them onto the testing fixture 300. This allows the products to be tested to be separated from the conveying mechanism 200, ensuring that the conveying or movement of the conveying mechanism does not affect the state of the workpiece to be tested, keeping it in a stable state and thus guaranteeing the accuracy of the test. It is also worth noting that by setting up a dual-station picking rack 410, the picking of materials in the loading section 210 and the unloading of the workpiece from the testing fixture 300 can be performed simultaneously, thereby improving the loading and unloading efficiency of the workpiece to be tested and increasing the transfer efficiency of the 3C products to be tested. In addition, it is worth noting that the conveying mechanism 200 is set as a segmented structure, so that the loading and unloading can operate independently. After inspection, the unqualified 3C products can be collected by manual unloading. At this time, the unloading part 220 does not need to operate to transport the unqualified 3C products. By separating the loading and unloading actions, the efficiency of conveying 3C products can be improved, and there will be no mutual interference.

[0039] In this embodiment, as Figure 1 As shown, the inspection mechanism 500 is located beside the conveying mechanism 200; the inspection fixture 300 also includes a first linear module 320, with its two ends located below the conveying mechanism 200 and the inspection mechanism 500, respectively. A fixture plate 310 is mounted on the first module and driven to reciprocate between the conveying mechanism and the inspection device. The fixture plate 310, through the first linear module 320, can switch between the conveying mechanism 200 and the inspection mechanism 500, allowing it to move to the underside of the inspection mechanism 500 for visual inspection after the 3C product is loaded by the transfer mechanism 400. By placing the inspection mechanism 500 beside the conveying mechanism 200, interference during the inspection and transfer of the 3C product can be avoided.

[0040] In this embodiment, in order to better transfer the 3C product between the loading section 210, the jig plate 310 and the unloading section 220 by the transfer mechanism 400, when the jig plate 310 is driven by the first linear module 320 to be located between the loading section 210 and the unloading section 220, the jig plate 310 is at the same horizontal height as the loading section 210 and the unloading section 220.

[0041] In this embodiment, as Figure 2-3 As shown, the loading section 210 and the unloading section 220 have the same structure, each including two opposing frames 221. At least two drive shafts are provided on the two frames 221, and a drive motor that is connected to one of the drive shafts is fixedly installed on the frame 221. A conveyor belt 223 is mounted on the at least two drive shafts, and the surface of the conveyor belt 223 defines a conveying channel for conveying 3C products.

[0042] In this embodiment, the loading section 210 is used to transport the 3C products to be tested toward the transfer mechanism 400. In order to improve the accuracy of transporting the 3C products, a guide component 211 is also provided on the loading section 210. The guide component 211 is used to guide the transport direction of the 3C products so that they are accurately transported to the position corresponding to the transfer mechanism 400. The guide component 211 includes two opposing limiting plates 2111. The limiting plates 2111 extend along the transport direction of the loading section 210. The guide component 211 also includes an adjusting rod 2112 whose two ends are detachably connected to the frame 221 and the limiting plates 2111 respectively by fasteners.

[0043] In other words, when 3C products are conveyed within the conveying channel defined on the surface of the conveyor belt 223, they can flow in a predetermined direction under the guidance of the guide component 211, thereby moving to the position corresponding to the transfer component 420, so that the transfer mechanism 400 can more accurately grab the 3C products.

[0044] Meanwhile, in order to adjust the distance between the two limiting plates 2111 and thus adapt to 3C products of different sizes, in this embodiment, an adjusting groove 2113 extending along the length of the adjusting rod 2112 is provided on the end of the adjusting rod 2112 corresponding to the frame 221. The adjusting groove 2113 is called a countersunk structure, and the fastener slides within the adjusting groove 2113. By loosening the fastener, the fastener can be moved within the adjusting groove 2113, thereby changing the length of the adjusting rod 2112 extending into the conveyor belt 223, and thus changing the distance between the two limiting plates 2111. This allows for adaptation to 3C products of different sizes and enables precise guidance and conveying.

[0045] Meanwhile, to prevent 3C products from falling out at the end of the loading section 210 or unloading section 220 during the loading and unloading process, thus affecting the efficiency of 3C product testing, baffles 225 are provided at the ends of both the loading section 210 and the unloading section 220. The two ends of the baffles 225 are detachably connected to the frame 221. Thus, after the 3C products are conveyed to the end, the baffles 225 limit their movement and stop them.

[0046] In this embodiment, as Figure 4 As shown, an example of the specific structure of the transfer assembly 420 is given. The transfer assembly 420 includes a second linear module 421 and a third linear module 422 assembled together. The second linear module 421 is suspended above the conveying mechanism, with its two ends located above the loading section 210 and the unloading section 220, respectively. The third linear module is disposed above the second linear module 421 and is driven to reciprocate between the loading section 210 and the unloading section 220. The dual-station pick-up rack 410 is driven to the third linear module 422 and is driven to reciprocate vertically by the third linear module 422. By setting the above two linear modules, the dual-station pick-up rack 410 can reciprocate along two axes, thereby achieving precise transfer operation.

[0047] Meanwhile, in order to accurately load the 3C products into the positioning area 311 of the fixture plate 310, rotary cylinders 414 are fixedly installed on both ends of the frame 411. The picking head 412 is driven to the output shaft of the rotary cylinder 414 and rotates under the drive of the rotary cylinder 414. The rotary cylinder 414 drives the picking frame 410 to rotate, thereby causing the 3C products picked up by the suction nozzle 413 to rotate. Through rotation, it can be adapted to the direction of the positioning area 311, thus accurately loading them into the positioning area 311.

[0048] In this embodiment, since the flatness and height difference of the plate are detected, in order to improve the detection accuracy, the detection mechanism 500 also includes a motion component 520 that drives the 3D vision module 510 to move back and forth in the horizontal and vertical directions. The motion component 520 includes a fourth linear module 521 arranged in the horizontal direction and a fifth linear module 522 arranged in the vertical direction and disposed on the fourth linear module 521. The 3D vision module 510 is mounted on the fifth linear module 522.

[0049] During the inspection process, the motion component 520 drives the 3D vision module 510 to move along two axes, and the first linear module 320 drives the fixture plate 310 to move. This enables the 3C product on the fixture plate 310 to be inspected along the entire plane along the XY axis. Compared with inspecting the 3C product at the same position and height, it can improve the inspection accuracy by combining and comparing multiple inspection data.

[0050] For those skilled in the art, various other corresponding changes and modifications can be obtained based on the structure and principles disclosed in this utility model, and all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A device for detecting the flatness and height difference of 3C products, comprising an operating table, characterized in that, The control panel is equipped with: A conveying mechanism for conveying the 3C products along a predetermined direction, comprising a feeding section for feeding and a discharging section for discharging, wherein the feeding section and the discharging section are spaced apart from each other. An inspection fixture is disposed between the loading section and the unloading section, and includes a fixture plate for placing the 3C product, and a positioning area for receiving the 3C product is provided on the fixture plate. The transfer mechanism is suspended above the conveying mechanism and includes a dual-station material picker and a transfer component that drives the dual-station material picker to reciprocate along the conveying direction and the up and down direction. The dual-station material picker includes a frame and material pickers located at both ends of the frame length. Several suction nozzles are provided on the material pickers. The testing facility is located next to the testing fixture and includes a 3D vision module that illuminates the 3C product from top to bottom for stereoscopic visual inspection of the 3C product.

2. The device for detecting flatness and height difference of 3C products according to claim 1, characterized in that, The detection mechanism is located beside the conveying mechanism; The testing fixture also includes a first linear module, with its two ends located below the conveying mechanism and the testing mechanism, respectively. The fixture plate is mounted on the first linear module and driven by it to reciprocate between the conveying mechanism and the testing device.

3. The device for detecting flatness and height difference of 3C products according to claim 2, characterized in that, When the jig plate is positioned between the loading section and the unloading section in the first linear module drive, the jig plate is at the same horizontal height as the loading section and the unloading section.

4. The device for detecting flatness and height difference of 3C products according to claim 1, characterized in that, The loading and unloading sections have the same structure, each including two opposing frames. At least two drive shafts are mounted on the two frames, and a drive motor that is connected to one of the drive shafts is fixedly mounted on the frame. A conveyor belt is mounted on the at least two drive shafts, and the surface of the conveyor belt defines a conveying channel for conveying the 3C products.

5. The device for detecting flatness and height difference of 3C products according to claim 4, characterized in that, A guiding component is also provided above the feeding section. The guiding component is used to guide the conveying direction of the 3C product so that it is accurately conveyed to the position corresponding to the transfer mechanism. The guiding component includes two opposing limiting plates, which extend along the conveying direction of the feeding section. The guiding component also includes an adjusting rod that is detachably connected to the frame and the limiting plates at both ends by fasteners.

6. The device for detecting flatness and height difference of 3C products according to claim 5, characterized in that, An adjustment groove extending along the length of the adjustment rod is provided on one end of the adjustment rod corresponding to the frame. The adjustment groove is called a countersunk head structure, and the fastener is limited to slide within the adjustment groove.

7. The device for detecting flatness and height difference of 3C products according to claim 4, characterized in that, Both the loading section and the unloading section are equipped with baffles at their ends, and the two ends of the baffles are detachably connected to the frame.

8. The device for detecting flatness and height difference of 3C products according to claim 1, characterized in that, The transfer component includes: The second linear module is suspended above the conveying mechanism, with its two ends located above the loading section and the unloading section, respectively. The third linear module is disposed above the second linear module and is driven to reciprocate between the loading section and the unloading section. The dual-station material handling frame is connected to the third linear module and is driven by the third linear module to reciprocate in the vertical direction.

9. The device for detecting flatness and height difference of 3C products according to claim 8, characterized in that, Rotary cylinders are fixedly installed on both ends of the frame. The material handling head is driven by the output shaft of the rotary cylinder and rotates under the drive of the rotary cylinder.

10. The device for detecting flatness and height difference of 3C products according to claim 1, characterized in that, The detection mechanism also includes a motion component that drives the 3D vision module to reciprocate in the horizontal and vertical directions. The motion component includes a fourth linear module arranged in the horizontal direction and a fifth linear module arranged in the vertical direction on the fourth linear module. The 3D vision module is mounted on the fifth linear module.

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