Chromatic aberration detection device and keyboard production equipment

Abstract

The utility model discloses a chromatic aberration detection device which is used for carrying out chromatic aberration detection on a to-be-detected product. Comprising a transfer mechanism, a visual inspection mechanism arranged on the transfer mechanism, a conveying mechanism arranged at one end of the transfer mechanism and used for conveying and pre-positioning a to-be-detected product, and a jacking and positioning mechanism used for jacking and positioning the to-be-detected product pre-positioned by the conveying mechanism to a detection point; the jacking positioning mechanism is arranged at the end, away from the transferring mechanism, of the conveying mechanism, and the transferring mechanism is in transmission connection with the visual detection mechanism and used for driving the visual detection mechanism to be close to the to-be-detected product positioned to the detection point by the jacking positioning mechanism, so that chromatic aberration detection is conducted on the to-be-detected product. The utility model further discloses keyboard production equipment comprising the chromatic aberration detection device.

Description

Technical Field

[0001] This utility model relates to the field of keyboard manufacturing technology, and in particular to a color difference detection device and keyboard production equipment. Background Technology

[0002] With the development of technology and the improvement of automated production levels, the requirements for the appearance quality of electronic products such as computer keyboards are becoming increasingly stringent. Among them, the painting process, as an important part of product surface treatment, is susceptible to color differences between products due to factors such as process parameters and paint batches, which can affect the overall quality of the product and the user experience.

[0003] In related technologies, color difference detection typically relies on manual sampling using a colorimeter. This involves manually measuring Lab values ​​(L value for black and white, a value for red and green, and b value for yellow and blue) at different stages before, during, and after production, and then judging the quality based on the results. However, manual sampling cannot achieve 100% coverage, potentially leading to defective products entering the market. Furthermore, due to the subjectivity of manual operation, the stability and consistency of the test results are poor, and there are also issues of high labor costs and low testing efficiency, which are unfavorable for large-scale production.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a color difference detection device that can ensure the consistency of detection and has high detection efficiency.

[0006] This utility model provides a color difference detection device for detecting color difference in a product under test. It includes a transfer mechanism, a visual inspection mechanism disposed on the transfer mechanism, a conveying mechanism disposed at one end of the transfer mechanism for conveying and pre-positioning the product under test, and a lifting and positioning mechanism for lifting and positioning the product under test pre-positioned by the conveying mechanism to the detection point.

[0007] The lifting and positioning mechanism is located at the end of the conveying mechanism away from the transfer mechanism. The transfer mechanism is connected to the visual inspection mechanism and is used to drive the visual inspection mechanism to approach the product to be tested, which is positioned at the detection point by the lifting and positioning mechanism, so as to perform color difference detection on the product to be tested.

[0008] In one embodiment, the conveying mechanism includes a conveyor line disposed at one end of the transfer mechanism, a pre-positioning unit disposed on one side of the conveyor line, and an identification unit. One end of the pre-positioning unit extends movably into the conveyor line to pre-position the product to be tested. The identification unit is used to identify the barcode on the product to be tested and collect the product information in the barcode.

[0009] In one embodiment, the conveying mechanism further includes two pressure strips disposed on both sides of the conveyor line, the two pressure strips together forming a limiting area for preventing the product under test from deviating from the conveyor line.

[0010] In one embodiment, the pre-positioning unit includes a positioning cylinder disposed on one side of the conveyor line and a positioning push block disposed at one end of the positioning cylinder. The positioning cylinder is convexly connected to the positioning push block and is used to drive the positioning push block to extend in a direction perpendicular to the conveyor line to pre-position the product to be tested on the conveyor line.

[0011] In one embodiment, the lifting and positioning mechanism includes a lifting cylinder disposed at one end of the conveying mechanism away from the transfer mechanism, and a support plate disposed at one end of the lifting cylinder. The lifting cylinder is convexly connected to the support plate and is used to drive the support plate to push out in a direction perpendicular to the conveying mechanism, thereby lifting and positioning the product to be tested, which is pre-positioned by the conveying mechanism, to the detection point.

[0012] In one embodiment, the lifting and positioning mechanism further includes a plurality of positioning posts disposed on the pallet, the plurality of positioning posts being arranged radially along the pallet and together forming a positioning area for positioning the product under test.

[0013] In one embodiment, the lifting and positioning mechanism further includes fixed blocks disposed at both ends of the conveying mechanism and a cover plate mounted on the fixed blocks, the cover plate being used to cover the product to be tested as the pallet is lifted to the detection point.

[0014] In one embodiment, the mounting height of the fixing block is higher than the side of the conveying mechanism closest to the visual inspection mechanism, thereby suspending the cover plate between the conveying mechanism and the visual inspection mechanism.

[0015] In one embodiment, the conveying mechanism further includes a plurality of line blocking units arranged sequentially along the conveying direction of the conveying line. The plurality of line blocking units are used to stop the product under test, thereby facilitating the pre-positioning unit to pre-position the product under test.

[0016] This utility model also provides a keyboard production equipment, including the color difference detection device of the above embodiment.

[0017] This utility model provides a color difference detection device that uses a transfer mechanism to drive a visual inspection mechanism to move, ensuring precise alignment with the product under test and improving detection accuracy and stability. Simultaneously, a conveying mechanism transports the product under test and pre-positions it before testing, ensuring consistent product position and preventing detection errors due to positional deviations. Furthermore, a lifting and positioning mechanism can lift and fix the product under test, ensuring stability and preventing shaking during testing, further improving detection accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall structural diagram of a color difference detection device provided in a preferred embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the conveying mechanism provided in a preferred embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the conveying mechanism provided in a preferred embodiment of the present invention.

[0022] Figure 4 A schematic diagram of the prepositioning unit provided in a preferred embodiment of this utility model.

[0023] Figure 5 A schematic diagram of the lifting and positioning mechanism provided in a preferred embodiment of this utility model.

[0024] Figure 6 A schematic diagram of the lifting and positioning mechanism provided in a preferred embodiment of this utility model.

[0025] Figure 7 This is a schematic diagram of the structure of the cover plate provided in a preferred embodiment of the present invention.

[0026] Figure 8 A schematic diagram of the structure of the visual inspection mechanism provided in a preferred embodiment of this utility model.

[0027] Figure 9 A schematic diagram of the transfer mechanism provided in a preferred embodiment of this utility model.

[0028] Figure label:

[0029] 1. Conveying mechanism; 2. Visual inspection mechanism; 3. Transfer mechanism; 4. Lifting and positioning mechanism; 11. Conveyor line; 12. Pre-positioning unit; 13. Identification unit; 14. Pressure bar; 15. Line blocking cylinder; 16. Blocking bar; 17. Positioning cylinder; 18. Positioning push block; 21. Camera; 22. Lens; 23. Light source; 24. Support; 31. First moving module; 32. Second moving module; 41. Lifting cylinder; 42. Pallet; 43. Fixing block; 44. Cover plate; 45. Detection window; 46. Positioning column. Detailed Implementation

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar attributes, not to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] Please refer to Figure 1This embodiment of the present invention provides a color difference detection device, including a transfer mechanism 3, a visual inspection mechanism 2, a conveying mechanism 1, and a lifting and positioning mechanism 4. The transfer mechanism supports and drives the visual inspection mechanism 2 to move along a predetermined trajectory, enabling the visual inspection mechanism 2 to inspect the product under test. The visual inspection mechanism 2 is mounted on the transfer mechanism and is used to acquire images of the product under test and analyze Lab color difference values ​​through image processing. The conveying mechanism 1 is located at one end of the transfer mechanism 3 and is used to transport the product under test to the top of the lifting and positioning mechanism 4 and pre-position the product. The lifting and positioning mechanism 4 is located at the end of the conveying mechanism 1 away from the transfer mechanism 3 and is used to lift and position the product under test to the detection point. After the product under test is conveyed to the top of the lifting and positioning mechanism 4, the lifting and positioning mechanism 4 lifts the product under test, bringing it into the detection point and maintaining stability to prevent external environmental factors from affecting the detection accuracy. The transfer mechanism is connected to the vision inspection mechanism 2, enabling the vision inspection mechanism 2 to move along the movement trajectory of the transfer mechanism, thereby performing color difference detection on the product to be tested that has been positioned by the lifting and positioning mechanism 4, ensuring the accuracy and consistency of the test results.

[0036] like Figure 8 As shown, in this embodiment, the visual inspection mechanism 2 includes components such as a bracket 24, a camera 21, a lens 22, and a light source 23. The camera 21 is mounted on the bracket 24, and its shooting angle and height are adjusted by an adjustment mechanism to accommodate products of different sizes. The lens 22 is fixed to the camera 21, and a suitable focal length is selected according to the inspection requirements to ensure that the shooting area covers the key inspection parts of the product. The light source 23 is installed at one end of the lens 22, and a suitable lighting method, such as a ring light source, coaxial light source, or backlight, is selected according to the inspection environment and product material to reduce ambient light interference and improve image contrast.

[0037] Optionally, such as Figure 9 As shown, the transfer mechanism 3 includes a first moving module 31 and a second moving module 32. The first moving module 31 is used to drive the visual inspection mechanism 2 to move along a first direction, and the second moving module 32 is used to drive the first moving module 31 to move along a second direction. The first direction and the second direction are perpendicular to each other, thereby enabling the visual inspection mechanism 2 to perform precise positioning and inspection in a two-dimensional plane.

[0038] Optionally, the first moving module 31 can employ a linear slide rail, an electric push rod, or a synchronous belt drive mechanism to ensure that the vision inspection mechanism 2 can move smoothly along the first direction. The second moving module 32 can employ a lead screw module driven by a stepper motor or a linear guide rail, thereby driving the first moving module 31 to move along the second direction to achieve a wider range of color difference detection.

[0039] like Figure 2-3As shown, in this embodiment, the conveying mechanism 1 includes a conveyor line 11, a pre-positioning unit 12, and an identification unit 13. The conveyor line 11 transports the product to be tested to the testing area and provides a stable transmission path, ensuring that the product enters the testing position according to a set trajectory. The pre-positioning unit 12 is located on one side of the conveyor line 11, with one end movably extending into the conveyor line 11 to pre-position the product, positioning it at a fixed point above the lifting and positioning mechanism 4, thereby improving testing accuracy and consistency. The identification unit 13 identifies the barcode on the product to be tested and collects the product information within the barcode for matching corresponding data during the testing process.

[0040] Furthermore, the conveying mechanism 1 also includes two pressure strips 14 disposed on both sides of the conveyor line 11. The two pressure strips 14 together form a limiting area to prevent the product under test from deviating from the conveyor line 11 during the conveying process. In this embodiment, the two pressure strips 14 can be made of elastic material or have an adjustable structure to accommodate products under test of different sizes, ensuring that the product maintains a stable position during the conveying process, thereby improving the conveying accuracy and avoiding detection errors caused by deviation.

[0041] like Figure 4 As shown, in this embodiment, the pre-positioning unit 12 includes a positioning cylinder 17 disposed on one side of the conveyor line 11, and a positioning push block 18 disposed at one end of the positioning cylinder 17. The positioning cylinder 17 is connected to the positioning push block 18 for driving the positioning push block 18 to extend in a direction perpendicular to the conveyor line 11, so that the positioning push block 18 contacts the product to be tested and pre-positions it.

[0042] like Figure 5-6 As shown, in one embodiment, the lifting and positioning mechanism 4 includes a lifting cylinder 41 disposed at the end of the conveying mechanism 1 away from the transfer mechanism, and a support plate 42 disposed at one end of the lifting cylinder 41. The lifting cylinder 41 is convexly connected to the support plate 42 and is used to drive the support plate 42 to push out in a direction perpendicular to the conveyor line 11, thereby lifting the product to be tested, which is pre-positioned by the conveying mechanism 1, to the testing point.

[0043] Because the product under test may shift or rotate during the lifting process, affecting the accuracy and stability of the test, in order to avoid this problem, such as Figure 5 As shown, in this embodiment, the lifting and positioning mechanism 4 also includes a plurality of positioning posts 46 disposed on the support plate 42. The plurality of positioning posts 46 are arranged radially along the support plate 42, together forming a positioning area for positioning the product to be tested, effectively limiting the product to be tested during the lifting process, and ensuring that it maintains a stable position during the testing process.

[0044] Optionally, the lifting and positioning mechanism 4 also includes a fixing block 43 and a cover plate 44. The fixing block 43 is installed at both ends of the conveying mechanism 1 and fixed by bolts. The cover plate 44 is installed on top of the fixing block 43, and its length covers the lifting range of the pallet 42, ensuring that the product to be tested is completely covered by the cover plate 44 after being lifted to the detection point.

[0045] After the product to be tested is conveyed to the pre-positioning area by the conveyor mechanism 1, the positioning cylinder 17 drives the positioning pusher 18 to perform pre-positioning. Subsequently, the lifting cylinder 41 is activated, driving the pallet 42 to move upward, causing the product to be tested to detach from the conveyor line 11 and rise to the detection point, while simultaneously bringing the product into the coverage area of ​​the cover plate 44. The function of the cover plate 44 is to shield ambient light interference during the detection process, reduce the influence of external light on the visual inspection mechanism 2, and ensure the accuracy and consistency of color difference detection.

[0046] Optionally, the surface of the cover plate 44 is treated with black anti-static coating to effectively absorb ambient light and prevent light reflection from causing errors in the detection results. It also prevents static electricity buildup from affecting the visual inspection mechanism 2, thus improving detection stability.

[0047] Optionally, such as Figure 7 As shown, a detection window 45 is provided on the cover plate 44. The size and position of the detection window 45 are optimized according to the field of view of the vision inspection mechanism 2, so that the vision inspection mechanism 2 can collect the image of the product to be tested through the detection window 45, while maintaining the shielding effect of the cover plate 44 against external light.

[0048] In this embodiment, the mounting height of the fixing block 43 is higher than the side of the conveying mechanism 1 closest to the visual inspection mechanism 2, so that the cover plate 44 is suspended between the conveying mechanism 1 and the visual inspection mechanism 2. With this arrangement, the cover plate 44 can effectively block the influence of the external light source 23 on the detection area without contacting the product to be tested, ensuring the accuracy of color difference detection.

[0049] Optionally, the conveying mechanism 1 is provided with multiple line blocking units sequentially along the conveying direction of the conveyor line 11. Each line blocking unit includes a line blocking cylinder 15 and a blocking bar 16 connected thereto. The line blocking cylinder 15 drives the blocking bar 16 to rise or fall on the conveyor line 11 to stop and release the product under test. When the product under test enters the pre-positioning area, the line blocking unit located at the front end of the area is activated to prevent the product under test from continuing to move forward, keeping it stably in the pre-positioning area. Subsequently, the pre-positioning unit 12 is activated to push the product under test to pre-position it, ensuring its accurate position and improving the accuracy of subsequent color difference detection. In addition, the sequential arrangement of multiple line blocking units can control the conveying rhythm of the product under test in stages, preventing the product from shifting position due to inertial sliding.

[0050] This utility model also provides a keyboard production equipment, including a color difference detection device according to the above embodiment.

[0051] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A color difference detection device for detecting color difference in a product to be tested, characterized in that, It includes a transfer mechanism (3), a visual inspection mechanism (2) disposed on the transfer mechanism (3), a transfer mechanism (1) disposed at one end of the transfer mechanism (3) for transferring and positioning the product to be tested, and a lifting and positioning mechanism (4) for lifting and positioning the product to be tested that has been positioned by the transfer mechanism (1) to the inspection point. The lifting and positioning mechanism (4) is located at one end of the conveying mechanism (1) away from the transfer mechanism (3). The transfer mechanism (3) is connected to the visual inspection mechanism (2) for driving the visual inspection mechanism (2) to approach the product to be tested, which is positioned at the detection point by the lifting and positioning mechanism (4), so as to perform color difference detection on the product to be tested.

2. The color difference detection device as described in claim 1, characterized in that, The conveying mechanism (1) includes a conveyor line (11) disposed at one end of the transfer mechanism (3), a pre-positioning unit (12) disposed on one side of the conveyor line (11), and an identification unit (13). One end of the pre-positioning unit (12) can be movably inserted into the conveyor line (11) to pre-position the product to be tested. The identification unit (13) is used to identify the barcode on the product to be tested and collect the product information in the barcode.

3. The color difference detection device as described in claim 2, characterized in that, The conveying mechanism (1) also includes two pressure strips (14) disposed on both sides of the conveyor line (11), the two pressure strips (14) together forming a limiting area to prevent the product under test from deviating from the conveyor line (11).

4. The color difference detection device as described in claim 2, characterized in that, The pre-positioning unit (12) includes a positioning cylinder (17) disposed on one side of the conveyor line body (11) and a positioning push block (18) disposed at one end of the positioning cylinder (17). The positioning cylinder (17) is connected to the positioning push block (18) for driving the positioning push block (18) to extend in a direction perpendicular to the conveyor line body (11) to pre-position the product to be tested on the conveyor line body (11).

5. The color difference detection device as described in claim 1, characterized in that, The lifting and positioning mechanism (4) includes a lifting cylinder (41) disposed at one end of the conveying mechanism (1) away from the transfer mechanism (3) and a support plate (42) disposed at one end of the lifting cylinder (41). The lifting cylinder (41) is connected to the support plate (42) for driving the support plate (42) to push out in a direction perpendicular to the conveying mechanism (1), thereby lifting and positioning the product to be tested that is pre-positioned by the conveying mechanism (1) to the testing point.

6. The color difference detection device as described in claim 5, characterized in that, The lifting and positioning mechanism (4) also includes a plurality of positioning posts (46) disposed on the pallet (42). The plurality of positioning posts (46) are arranged radially along the pallet (42) and together form a positioning area for positioning the product to be tested.

7. The color difference detection device as described in claim 5, characterized in that, The lifting and positioning mechanism (4) further includes fixed blocks (43) at both ends of the conveying mechanism (1) and a cover plate (44) installed on the fixed blocks (43). The cover plate (44) is used to cover the product to be tested when the tray (42) is lifted to the detection point.

8. The color difference detection device as described in claim 7, characterized in that, The mounting height of the fixing block (43) is higher than the side of the conveying mechanism (1) that is close to the visual inspection mechanism (2), thereby suspending the cover plate (44) between the conveying mechanism (1) and the visual inspection mechanism (2).

9. The color difference detection device as described in claim 2, characterized in that, The conveying mechanism (1) further includes a plurality of line blocking units arranged sequentially along the conveying direction of the conveying line (11). The plurality of line blocking units are used to stop the product to be tested, thereby facilitating the pre-positioning unit (12) to pre-position the product to be tested.

10. A keyboard manufacturing device, characterized in that, Includes the color difference detection device as described in any one of claims 1-9.

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