A watch dial surface flaw automatic visual detection device

Abstract

The utility model discloses a kind of watch dial surface flaw automated visual inspection device, to solve the problem of low efficiency, accuracy instability and difficult to adapt to small size and complex structure watch in the detection of watch dial surface flaw in prior art.The device includes visual inspection part, fixture part, sliding table part and light supplement part.Visual inspection part is fixed industrial camera by telescopic support, and high-precision shooting is carried out to align fixture part;Fixture part utilizes rotary air cylinder and pneumatic parallel clamp to realize the stable clamping and multi-angle rotation of watch dial;Sliding table part moves fixture part on linear sliding table by servo motor driving, and realizes automated detection process;Light supplement part provides uniform light source, to ensure the definition of shooting picture.The utility model is through automated, high-precision detection mode, effectively improve the detection efficiency and accuracy of watch dial surface flaw, applicable to the detection of various sizes and shapes watch dial, with wide application prospect.

Description

Technical Field

[0001] This utility model relates to the field of industrial visual inspection, and in particular to an automated visual inspection device for defects on the surface of a watch dial. Background Technology

[0002] In the watch manufacturing industry, especially in the rapidly developing field of smartwatches in recent years, the requirements for product appearance quality are becoming increasingly stringent. As a combination of a precision timekeeping instrument and a fashion accessory, the flawless appearance of a watch dial directly affects the overall value of the product and the consumer experience. However, as watch designs tend towards miniaturization and functional diversification, dial sizes are constantly shrinking while surface details are becoming increasingly refined, posing a significant challenge to traditional quality inspection methods.

[0003] Currently, defect detection on watch dials primarily relies on manual visual inspection. While this method ensures intuitiveness and accuracy to some extent, manual inspection is limited by human vision and fatigue. It often struggles to consistently identify minute flaws such as tiny scratches, stains, or color differences, leading to frequent missed or false positives. Furthermore, smartwatches, with their integrated electronic components and displays, have more complex dial structures, making traditional manual inspection methods ill-suited for the high-precision, multi-dimensional inspection requirements. For example, issues like tiny cracks at the screen edges or uneven light transmission in internal components are difficult to accurately assess with the naked eye, yet these flaws can directly impact product performance and user satisfaction.

[0004] As production scales up, the efficiency of manual inspection has become a key factor restricting capacity expansion. It not only increases labor costs but also fails to meet the demands of modern production lines for efficient and automated processes. Therefore, developing a device capable of automating, efficiently, and accurately detecting defects on watch dial surfaces to improve quality control in the watch manufacturing industry and reduce production costs is a pressing technical problem for those skilled in the art. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides an automated visual inspection device for watch dial surface defects, thereby solving the problems of low detection efficiency, unstable accuracy, and difficulty in adapting to the inspection of small-sized and complex-structured watches in the prior art. The device includes a visual inspection unit and a clamping unit, wherein the clamping unit is used to hold the part to be tested, and the visual inspection unit is used to inspect the part.

[0006] Furthermore, the visual inspection unit includes a first base with a telescopic bracket on it. A camera clamp is positioned above the telescopic bracket, and an industrial camera is mounted in the camera clamp. The industrial camera is aligned with the fixture unit. The fixture unit includes a fixture base with a rotary cylinder above it. A pneumatic parallel clamp is positioned above the rotary cylinder, and each pneumatic parallel clamp has grippers. The pneumatic parallel clamp holds the workpiece to be inspected by opening and closing left and right. The rotary cylinder drives the pneumatic parallel clamp to rotate horizontally so that the industrial camera can inspect the front and back sides of the workpiece.

[0007] Furthermore, the clamping part also includes a positioning support block, which is disposed between the grippers. The positioning support block has a "T" shaped structure. The top of the positioning support block is used to position and support the workpiece to be tested. Positioning mounting plates are respectively provided at the front and rear of the pneumatic parallel clamp, and the positioning mounting plates are used to fix the positioning support block.

[0008] Preferably, both the inner clamping surface of the gripper and the upper support surface of the positioning support block are provided with bearing grooves to more securely clamp the workpiece being tested.

[0009] Furthermore, the device also includes a slide section, which includes a linear slide. The clamping section is disposed on the linear slide, and a servo motor is disposed on one side of the linear slide. The clamping section moves left and right on the linear slide under the drive of the servo motor.

[0010] Preferably, the device further includes a supplementary lighting unit, which is disposed between the visual inspection unit and the clamping unit. The supplementary lighting unit includes a second base, a folding arm is disposed above the second base, and a supplementary light is disposed above the folding arm. The folding arm is a double-arm folding structure used to control the height of the supplementary light.

[0011] Preferably, the supplementary light is ring-shaped, and the industrial camera takes pictures of the workpiece being inspected held on the fixture through the inner circular hole of the supplementary light.

[0012] The advantages and beneficial effects of this utility model are as follows: This utility model utilizes an industrial camera to perform high-precision and high-efficiency imaging and inspection of watch dials through automated visual inspection, effectively solving the problems of low inspection efficiency and unstable accuracy in traditional inspection methods. The precise capture capability of the industrial camera ensures the accuracy of defect detection, greatly improving production efficiency. The fixture unit, through the combination of pneumatic parallel clamps and rotary cylinders, achieves stable clamping and multi-angle rotation of the workpiece being inspected, enabling the industrial camera to comprehensively inspect the front and back sides of the watch dial, enhancing the adaptability of the device and meeting the inspection needs of watches of different sizes and shapes. The sliding table unit allows the fixture unit to move left and right along a linear slide under the drive of a servo motor, realizing an automated inspection process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This is a schematic diagram of the clamping part of this utility model.

[0017] Among them, 1-vision inspection unit, 11-first base, 12-telescopic bracket, 13-camera clamp, 14-industrial camera, 2-clamping unit, 21-clamping base, 22-rotary cylinder, 23-pneumatic parallel clamp, 24-gripper, 25-positioning support block, 26-positioning mounting plate, 3-slide table unit, 31-linear slide table, 32-servo motor, 4-lighting unit, 41-second base, 42-folding arm, 43-lighting lamp. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the equipment mainly includes a vision inspection unit 1, a fixture unit 2, a slide unit 3, and a supplementary lighting unit 4.

[0020] The vision inspection unit 1 is based on the first base 11, which provides stable support for the entire inspection section. A telescopic bracket 12 is mounted on the first base 11; this bracket can be adjusted in height to accommodate the inspection of watch faces of different sizes. A camera clamp 13 is located at the top of the telescopic bracket 12 to secure an industrial camera 14. The industrial camera 14 is precisely aligned with the fixture unit 2 via the camera clamp 13, ensuring the clarity and accuracy of the captured images.

[0021] The clamping unit 2 consists of a clamping base 21, which provides stable support for the entire clamping system. A rotary cylinder 22 is mounted on top of the clamping base 21, which drives the pneumatic parallel clamp 23 to rotate horizontally. The jaws 24 of the pneumatic parallel clamp 23 are designed to hold the watch face being inspected, ensuring that the watch face does not move or wobble during the inspection process.

[0022] A T-shaped positioning support block 25 is provided between the jaws 24 for precise positioning and support of the watch dial. The positioning support block 25 is securely fixed to the pneumatic parallel clamp 23 by positioning mounting plates 26 positioned at the front and rear, ensuring accurate positioning. Bearing grooves are provided on the inner side of the jaws 24 and above the positioning support block 25. These bearing grooves match the shape of the watch dial, further enhancing the stability of the clamping.

[0023] The slide section 3 consists of a linear slide 31 and a servo motor 32, providing movement functionality for the fixture section 2. The fixture section 2 is mounted entirely on the linear slide 31 and can move left and right along the slide under the drive of the servo motor 32, realizing position adjustment in the automated inspection process.

[0024] The supplementary lighting unit 4 is positioned between the vision inspection unit 1 and the clamping unit 2 to provide the necessary lighting conditions for shooting. The supplementary lighting unit 4 includes a second base 41 for supporting the entire supplementary lighting system. A folding arm 42 with a double-arm folding structure is mounted above the second base 41; this folding arm can be adjusted in height and angle as needed. A ring-shaped supplementary light 43 is located at the top of the folding arm 42, with a circular hole inside the supplementary light allowing the industrial camera 14 to pass through for shooting. The supplementary light 43 provides a uniform and soft light source to the industrial camera 14, ensuring the clarity and contrast of the captured image.

[0025] Specific usage steps:

[0026] When using this invention to detect defects on the surface of a watch dial, the watch dial to be inspected is first placed on the positioning support block 25 of the clamping unit 2. Then, the jaws 24 of the pneumatic parallel clamp 23 close under air pressure, firmly clamping the watch dial in the support groove. The servo motor 32 of the slide unit 3 drives the clamping unit 2 to move on the linear slide 31, moving the clamping unit 2 in front of the industrial camera 14 for visual inspection. Next, the rotary cylinder 22 drives the pneumatic parallel clamp 23 and the watch dial to rotate horizontally, allowing the industrial camera 14 to capture the front and back sides of the watch dial. During this process, the supplementary light 43 of the supplementary light unit 4 provides appropriate lighting conditions to ensure the quality of the captured images.

[0027] Based on the inspection requirements, the image data captured by the industrial camera 14 is transmitted to the processing system for defect detection and analysis. After inspection, the pneumatic parallel clamp 23 releases the watch dial, completing the entire automated inspection process. This invention significantly improves the efficiency and accuracy of detecting defects on the surface of watch dials through a precise and efficient automated inspection method.

[0028] The above provides a detailed description of an automated visual inspection device for watch dial surface defects provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A watch dial surface flaw automatic visual detection device, comprising a visual detection part (1) and a clamp part (2), characterized in that, The visual inspection unit (1) includes a first base (11), on which a telescopic bracket (12) is provided. A camera clamp (13) is provided above the telescopic bracket (12). An industrial camera (14) is clamped in the camera clamp (13). The industrial camera (14) is aligned with the clamping unit (2). The clamping unit (2) includes a clamping base (21), on which a rotary cylinder (22) is provided. A pneumatic parallel clamp (23) is provided above the rotary cylinder (22). The pneumatic parallel clamp (23) is provided with grippers (24).

2. The automatic visual detection device for surface flaws of a watch dial according to claim 1, characterized in that, The clamping part (2) also includes a positioning support block (25), which is disposed between the jaws (24). The positioning support block (25) has a "T" shaped structure. The pneumatic parallel clamp (23) is provided with positioning mounting plates (26) at the front and rear respectively. The positioning mounting plates (26) are used to fix the positioning support block (25).

3. The automatic visual detection device for surface flaws of a watch dial according to claim 2, characterized in that, Both the inner clamping surface of the gripper (24) and the upper support surface of the positioning support block (25) are provided with bearing grooves.

4. The automatic visual detection device for surface flaws of a watch dial according to claim 2, characterized in that, The device also includes a slide section (3), which includes a linear slide (31). The clamping section (2) is disposed on the linear slide (31). A servo motor (32) is disposed on one side of the linear slide (31). The clamping section (2) moves left and right on the linear slide (31) under the drive of the servo motor (32).

5. The apparatus for automated visual inspection of surface flaws of a watch dial according to any one of claims 1 to 4, characterized in that, The device also includes a supplementary light section (4), which is disposed between the visual detection section (1) and the clamp section (2). The supplementary light section (4) includes a second base (41), a folding arm (42) is disposed above the second base (41), and a supplementary light (43) is disposed above the folding arm (42). The folding arm (42) is a double-arm folding structure.

6. The automatic visual detection device for surface flaws of a watch dial according to claim 5, characterized in that, The supplementary light (43) is in the shape of a ring.

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