An automatic screw height detection device

Abstract

An automatic screw height detection device includes a base, a guide tube, a lifting platform, a detection device, and a spray gun. The lower end of the guide tube is connected to the base, and the upper end of the guide tube is connected to a mounting plate for the detection device. The lifting platform is located in the middle of the guide tube, and a detection window is provided in the middle of the lifting platform. The detection device is connected to the mounting plate and faces the detection window. The spray gun is located at the detection window. This invention can greatly improve detection efficiency and accuracy, reduce human intervention, and is suitable for various complex production environments.

Description

Technical Field

[0001] This utility model relates to the field of automated testing, specifically an automatic screw height detection device. Background Technology

[0002] Currently, screw tightening mainly relies on the automatic tightening torque of the equipment's tightening shaft. However, due to factors such as product processing errors and equipment torque attenuation, the screw tightening torque is not accurate enough, necessitating the addition of manual torque wrench inspection and marking with paint.

[0003] Current torque testing methods, involving manual wrench inspection and marking with paint, suffer from inefficiency, low accuracy, and human error. This is not only time-consuming and labor-intensive but also susceptible to human factors, leading to inaccurate results. Furthermore, with the increasing automation of industrial production, higher demands are being placed on the efficiency and accuracy of screw height detection. Summary of the Invention

[0004] To address the above problems, this utility model provides an automatic screw height detection device.

[0005] The technical solution of this utility model is: an automatic screw height detection device, including a base, a guide tube, a lifting platform, a detection device, and a spray gun. The lower end of the guide tube is connected to the base, and the upper end of the guide tube is connected to the detection device mounting plate. The lifting platform is located in the middle of the guide tube, and a detection window is provided in the middle of the lifting platform. The detection device is connected to the detection device mounting plate and faces the detection window. The spray gun is located at the detection window.

[0006] Preferably, a cylinder mounting seat is provided in the middle of the conduit. The cylinder mounting seat is used to install a lifting cylinder. The output end of the lifting cylinder is fixedly connected to the lifting platform. The output end of the lifting cylinder extends and retracts, driving the lifting platform to move up and down along the conduit.

[0007] As a further preferred embodiment, a sleeve is provided on the lifting platform, the sleeve is fixedly connected to the lifting platform, and the sleeve is slidably connected to the guide tube.

[0008] Preferably, the spray gun is fixedly installed on the edge of the detection window by a spray gun clamp, and the spray gun is tilted downwards.

[0009] As a further preferred embodiment, the spray gun clamp includes a fixing part and a clamping part. The fixing part is fixedly connected to the edge of the detection window, and the middle of the clamping part is used to clamp the spray gun. An angle is formed between the fixing part and the clamping part.

[0010] As a further preferred embodiment, the fixing part is provided with an adjustment groove, and the clamping part is provided with a connector mounting hole. The connector of the spray gun is located in the connector mounting hole, and the spray gun is installed at an angle downwards.

[0011] Preferably, the mounting plate of the detection device is provided with a through hole, and a mounting corner block is provided next to the through hole. One side of the mounting corner block is fixedly connected to the mounting plate of the detection device, and the other side is fixedly connected to the connecting plate of the detection device. The detection device is fixedly installed on the connecting plate of the detection device.

[0012] Preferably, the detection device is a Keen measuring instrument with its measuring head pointing downwards toward the detection window.

[0013] As a further preferred embodiment, the connecting plate of the detection device is provided with an adjustment groove.

[0014] Preferably, the lifting platform is also equipped with a paint storage bucket. The beneficial effects of this utility model are: it can greatly improve detection efficiency and accuracy, reduce human intervention, and is suitable for various complex production environments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is a top view of the present invention.

[0018] Figure 4 This is the left view of the present invention.

[0019] Figure 5 This is a three-dimensional structural diagram of the lifting platform of this utility model.

[0020] Figure 6 This is a top view of the lifting platform of this utility model.

[0021] Figure 7 This is the front view of the lifting platform of this utility model.

[0022] Figure 8 This is a schematic diagram showing the combination of the spray gun and spray gun clip of this utility model.

[0023] Label Explanation 1: Through hole; 2: Detection device; 3: Detection device mounting plate; 4: Guide tube; 5: Lifting platform; 6: Sleeve; 7: Cylinder mounting seat; 8: Lifting cylinder; 9: Base; 10: Pigment storage bucket; 11: Mounting corner block; 12: Detection device connecting plate; 13: Spray gun; 14: Detection window; 15: Spray gun clamp; 16: Connector mounting hole; 17: Adjustment groove; 18: Fixing part; 19: Clamping part. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-8 As shown, an automatic screw height detection device includes a base 9, a guide tube 4, a lifting platform 5, a detection device 2, and a spray gun 13. The lower end of the guide tube 4 is connected to the base 9, and the upper end of the guide tube 4 is connected to the detection device mounting plate 3. The lifting platform 5 is located in the middle of the guide tube 4, and a detection window 14 is provided in the middle of the lifting platform 5. The detection device 2 is connected to the detection device mounting plate 3, and the detection device 2 faces the detection window 14. The spray gun 13 is located at the detection window 14.

[0026] In this embodiment, a cylinder mounting seat 7 is provided in the middle of the conduit 4. The cylinder mounting seat 7 is used to install a lifting cylinder 8. The output end of the lifting cylinder 8 is fixedly connected to the lifting platform 5. The output end of the lifting cylinder 8 extends and retracts, driving the lifting platform 5 to move up and down along the conduit 4.

[0027] In this embodiment, a sleeve 6 is provided on the lifting platform 5. The sleeve 6 is fixedly connected to the lifting platform 5 and slidably connected to the conduit 4. Because the lifting platform 5 needs to be raised and lowered frequently, the sleeve 6 is provided to allow the sleeve 6 to be slidably connected to the conduit 4. This method makes the raising and lowering of the lifting platform 5 more stable, reduces the friction between the lifting platform 5 and the conduit 4, and reduces equipment wear.

[0028] like Figure 5-7 As shown, in this embodiment, the spray gun 13 is fixedly installed on the edge of the inspection window 14 by the spray gun clamp 15, and the spray gun 13 is tilted downwards. In actual operation, the product to be inspected is located below the lifting platform 5, and the spray gun 13 is directed towards the screw to be inspected.

[0029] like Figure 8 As shown, in this embodiment, the spray gun clamp 15 includes a fixing part 18 and a clamping part 19. The fixing part 18 is fixedly connected to the edge of the detection window 14, and the middle of the clamping part 19 is used to clamp the spray gun 13. An angle is formed between the fixing part 18 and the clamping part 19, thereby realizing the state of tilting and clamping the spray gun 13.

[0030] In this embodiment, the fixing part 18 is provided with an adjustment groove 17, which is used to adjust the position of the spray gun 13. The clamping part 19 is provided with a connector mounting hole 16, and the connector of the spray gun 13 is located in the connector mounting hole 16. This makes the spray gun clamping state more stable and prevents it from shaking due to the vibration caused by the frequent lifting of the lifting platform 5. After the spray gun 13 is installed, it is set at an angle downward.

[0031] In this embodiment, a through hole 1 is provided on the mounting plate 3 of the detection device, and a mounting corner block 11 is provided next to the through hole 1. One side of the mounting corner block 11 is fixedly connected to the mounting plate 3 of the detection device, and the other side is fixedly connected to the connecting plate 12 of the detection device. The detection device 2 is fixedly installed on the connecting plate 12 of the detection device.

[0032] In this embodiment, the detection device 2 is a Keen measuring instrument, with its measuring head pointing downwards toward the detection window 14. The Keen measuring instrument uses non-contact measurement technology, projecting light onto the screw flange surface through structured light projection imaging, and capturing the projection image of the light on the object surface using a camera to obtain planar information. The screw height is then calculated using an image algorithm.

[0033] In this embodiment, the detection device connecting plate 12 is provided with an adjustment groove 17. The adjustment groove 17 is provided to facilitate the adjustment of the position of the detection device 2.

[0034] In this embodiment, the lifting platform 5 is also provided with a pigment placement bucket 10, which can be used to place pigments.

[0035] This invention designs an automatic screw height detection device, which enables rapid and accurate detection of screw height.

[0036] Specifically, the working principle of this utility model is as follows: This utility model is installed above the conveyor track of the product production line. The detection device 2 and spray gun 13 in this utility model are connected to a computer. When the product is conveyed to the bottom of this utility model, the detection device 2 acquires images of the screws of the product. In this embodiment, a Keen measuring instrument is used, and a high-definition camera is used to photograph the screws to obtain their surface images, which are then transmitted to the computer connected to the detection device 2 for image processing and height calculation. The computer is also connected to the spray gun 13. The image processing and height calculation are as follows: 1. Image preprocessing: Denoising, enhancement, and other preprocessing operations are performed on the acquired images to improve the accuracy of subsequent processing. 2. Feature extraction: The height feature information of the screws is extracted from the preprocessed images. 3. Height calculation: The actual height value of the screws is calculated based on the extracted feature information. 4. Result output: The calculated height value is compared with a preset standard range to determine whether it is qualified, and the result is displayed on the screen or a report is generated. If qualified, the computer sends an automatic inkjet command to the spray gun 13. 5. Automatic inkjet printing: Based on the number of screws, a corresponding number of inkjet guns 13 are set at the corresponding positions in the detection window 14. The nozzles of the inkjet guns 13 automatically and effectively spray ink onto the screws, replacing manual marking.

[0037] This utility model claims protection for an automatic screw height detection device. The steps of image preprocessing, feature extraction, height calculation, and result output in the working principle are not the content of this utility model and are existing technologies.

[0038] In the description of this utility model, it should be understood that the terms "upper end", "lower end", "middle", "below", "edge", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0039] In this utility model, unless otherwise explicitly specified and limited, the term "connection" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it 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 in this utility model according to the specific circumstances.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic screw height detection device, characterized in that... The device includes a base (9), a conduit (4), a lifting platform (5), a detection device (2), and a spray gun (13). The lower end of the conduit (4) is connected to the base (9), and the upper end of the conduit (4) is connected to the detection device mounting plate (3). The lifting platform (5) is located in the middle of the conduit (4), and a detection window (14) is provided in the middle of the lifting platform (5). The detection device (2) is connected to the detection device mounting plate (3), and the detection device (2) faces the detection window (14). The spray gun (13) is located at the detection window (14).

2. The apparatus of claim 1, wherein A cylinder mounting seat (7) is provided in the middle of the conduit (4). The cylinder mounting seat (7) is used to install a lifting cylinder (8). The output end of the lifting cylinder (8) is fixedly connected to the lifting platform (5). The output end of the lifting cylinder (8) extends and retracts, driving the lifting platform (5) to move up and down along the conduit (4).

3. The apparatus of claim 2, wherein A sleeve (6) is provided on the lifting platform (5), the sleeve (6) is fixedly connected to the lifting platform (5), and the sleeve (6) is slidably connected to the conduit (4).

4. The apparatus of claim 1, wherein The spray gun (13) is fixedly installed on the edge of the detection window (14) by the spray gun clamp (15), and the spray gun (13) is set at an angle downward.

5. The apparatus of claim 4, wherein The spray gun clamp (15) includes a fixing part (18) and a clamping part (19). The fixing part (18) is fixedly connected to the edge of the detection window (14). The middle of the clamping part (19) is used to clamp the spray gun (13). An angle is formed between the fixing part (18) and the clamping part (19).

6. The apparatus of claim 5, wherein An adjustment groove (17) is provided on the fixing part (18), and a connector mounting hole (16) is provided on the clamping part (19). The connector of the spray gun (13) is located in the connector mounting hole (16). After the spray gun (13) is installed, it is set at an angle downward.

7. The apparatus of claim 1, wherein The detection device mounting plate (3) is provided with a through hole (1), and a mounting corner block (11) is provided next to the through hole (1). One side of the mounting corner block (11) is fixedly connected to the detection device mounting plate (3), and the other side is fixedly connected to the detection device connecting plate (12). The detection device (2) is fixedly installed on the detection device connecting plate (12).

8. The apparatus according to claim 1 or 7, wherein The detection device (2) is a Keen measuring instrument with its measuring head pointing downward toward the detection window (14).

9. The apparatus of claim 7, wherein The detection device connection plate (12) is provided with an adjustment groove (17).

10. The apparatus of claim 1, wherein The lifting platform (5) is also equipped with a pigment storage bucket (10).

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