A laboratory pipe surface image acquisition auxiliary device

Abstract

The utility model relates to a kind of round pipe surface image acquisition auxiliary devices for laboratory, belong to laboratory equipment instrument equipment field.The utility model includes including base, driving dial, round pipe support, notched wheel, connecting shaft;4 notches are uniformly provided on the notched wheel, driving dial and notched wheel constitute notched wheel mechanism, intermittent rotation can be carried out, the angle of each rotation is 90 °, notched wheel is driven round pipe rotation by transmission component, with the rotation of round pipe, camera can collect the image of different positions of round pipe.The utility model novel structure is simple, reliable in operation, easy to operate.After the rotation of notched wheel 360 °, the comprehensive non-missing, high-quality collection of the surface defect image of various sizes round pipe in laboratory can be realized.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for acquiring images of the surface of a circular tube in a laboratory, belonging to the field of laboratory equipment and instruments. Background Technology

[0002] When inspecting surface defects in circular tubes, comprehensive and detailed image data acquisition of the tube surface is required. However, currently, there are few devices available for acquiring images of circular tube surface defects for experimental research. The common practice is to place the tube on a flat surface for imaging, then reposition it and photograph again. This process is labor-intensive and results in low-quality images that cannot fully reflect the surface quality of the tube. Therefore, a device with a simple structure, reasonable design, and easy operation is needed that can comprehensively and quickly acquire images of the circular tube surface. Summary of the Invention

[0003] The technical problem this invention aims to solve is: This invention provides a laboratory-grade auxiliary device for acquiring surface images of cylindrical tubes, addressing issues such as repeated shooting of the same area and omissions of key areas in current laboratory surface image collection for cylindrical tubes; this invention assists in the comprehensive and rapid acquisition of surface feature images of cylindrical tubes of different sizes in the laboratory; when assisting in image acquisition, the cylindrical tube is placed on the device, and the tube is rotated intermittently at the same angle. Image acquisition is performed when the tube is stationary, completing the sample surface image acquisition, and then the tube is removed; this invention has the advantages of simple structure, reasonable design, and simple operation; and it can comprehensively and rapidly assist in acquiring surface images of cylindrical tubes.

[0004] The technical solution of this utility model is: a laboratory auxiliary device for acquiring images of the surface of a circular tube, comprising a base 1, an active dial 2, a circular tube support 4, a grooved wheel 5, and a connecting shaft 6; The base 1 has two stepped holes, namely stepped hole A and stepped hole B, for installing bearings. The active dial 2 is equipped with a rotating shaft, which is a stepped shaft, and the rotating shaft is installed on the bearing in stepped hole A. The grooved wheel 5 is mounted on the connecting shaft 6. One end of the circular end of the connecting shaft 6 is mounted on the stepped hole B of the base 1 through a bearing. One end of the square end of the connecting shaft 6 is mounted on a circular tube support 4. The circular tube 3 to be acquired is placed on the circular tube support 4.

[0005] Furthermore, the active dial 2 and the grooved wheel 5 constitute a grooved wheel mechanism. The grooved wheel 5 is evenly provided with 4 slots, and a groove 7 is provided on both sides of one end of a slot of the grooved wheel 5 for marking the starting position and preventing mistake.

[0006] Furthermore, the active dial 2 is a disc with an inwardly concave arc on one side. The convex part of the disc is a convex locking arc IX. The disc is provided with a rotating arm X, and the end of the rotating arm X is provided with a cylindrical pin XI. The outer edge of the grooved wheel 5 is evenly distributed with four inwardly concave arcs, namely arc V, arc VI, arc VII, and arc VIII. Arc V, arc VI, arc VII, and arc VIII are the concave locking arcs of the grooved wheel 5.

[0007] Furthermore, the circular tube support 4 is a cone with a large diameter at one end and a small diameter at the other end. The bottom diameter is large, and a rectangular hole is opened in the center of the large bottom end for installation with the square end of the connecting shaft 6.

[0008] Furthermore, the grooved wheel 5 is interference-fitted with the connecting shaft 6.

[0009] The beneficial effects of this utility model are: 1. This utility model uses a grooved wheel mechanism to realize the intermittent rotation of the circular tube, which has the characteristics of simple structure, reliable and stable operation, and can take pictures and collect images during the time when the circular tube is stationary; 2. This utility model uses a grooved wheel mechanism to achieve intermittent rotation of the circular tube, with each rotation angle being equal, which can fully capture the image of the circular tube surface; 3. This utility model adopts a conical tube support body, which can realize the automatic centering of the tube and facilitate the adjustment of the tube position; 4. This utility model is simple to operate and can be used for image acquisition of the surface of round tubes of different specifications, reducing the difficulty and workload of image acquisition of the surface of round tubes and improving the efficiency of image acquisition of the surface of round tubes. Attached Figure Description

[0010] Figure 1 This is an isometric view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a top view of the present invention; Figure 4 This is a side view of the present invention; Figure 5 This is a schematic diagram of the present invention without the circular tube placed; Figure 6 This is a cross-sectional view of the present invention; Figure 7 This is a schematic diagram illustrating the use of this utility model; Figure 8 This is an isometric drawing of the grooved wheel of this utility model; Figure 9 This is a schematic diagram of the locked state of the grooved wheel and the active dial of this utility model; Figure 10This is a schematic diagram of the unlocked state of the grooved wheel and the active dial of this utility model; Figure 1-10 The following are the labels: 1-base, 2-active dial, 3-round tube, 4-round tube support, 5-grooved wheel, 6-connecting shaft, 7-groove. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] Example 1: As Figures 1-10 As shown, a laboratory-use circular tube surface image acquisition auxiliary device includes a base 1, an active dial 2, a circular tube support 4, a grooved wheel 5, and a connecting shaft 6. The base 1 has two stepped holes, namely stepped hole A and stepped hole B, for installing bearings. The active dial 2 is equipped with a rotating shaft, which is a stepped shaft, and the rotating shaft is installed on the bearing in stepped hole A. The grooved wheel 5 is mounted on the connecting shaft 6. One end of the circular end of the connecting shaft 6 is mounted on the stepped hole B of the base 1 through a bearing. One end of the square end of the connecting shaft 6 is mounted on a circular tube support 4. The circular tube 3 to be acquired is placed on the circular tube support 4.

[0013] Furthermore, the active dial 2 and the grooved wheel 5 constitute a grooved wheel mechanism. The grooved wheel 5 is evenly provided with 4 slots. Each end of one slot of the grooved wheel 5 is provided with a groove 7 with a width of 1mm and a depth of 1mm, which is used to mark the starting position and prevent mistaken identity.

[0014] Furthermore, the active dial 2 is a disc with an inwardly concave arc on one side. The convex part of the disc is a convex locking arc IX. The disc is provided with a rotating arm X, and the end of the rotating arm X is provided with a cylindrical pin XI. The outer edge of the grooved wheel 5 is evenly distributed with four inwardly concave arcs, namely arc V, arc VI, arc VII, and arc VIII. Arc V, arc VI, arc VII, and arc VIII are the concave locking arcs of the grooved wheel 5.

[0015] Furthermore, the cylindrical support 4 is a cone with a large diameter at one end and a small diameter at the other end. The bottom diameter is large, and a rectangular hole is opened in the center of the large bottom end for installation with the square end of the connecting shaft 6. The cylindrical tube 3 is placed on the cylindrical support 4, and the cylindrical support 4 is made of plastic or metal.

[0016] Furthermore, the grooved wheel 5 is interference-fitted with the connecting shaft 6.

[0017] The working process of this utility model is as follows: The grooved wheel 5 of this utility model has four slots evenly arranged on it. The active dial 2 and the grooved wheel form a grooved wheel mechanism, which can rotate intermittently. Each rotation angle is 90°. The grooved wheel 5 drives the circular tube 3 to rotate through the transmission component. As the circular tube 3 rotates, the camera can capture images of different positions of the circular tube 3. Specifically: Before shooting, record the position of the groove opening of the groove wheel 5 with two grooves 7 with a width of 1mm and a depth of 1mm. Place the round tube 3 on the round tube support body 4. By rotating the active dial 2, drive the groove wheel 5 to complete intermittent rotation, with each rotation angle being equal. When the active dial 2 rotates one revolution, it drives the groove wheel 5 to rotate by 90°. The groove wheel 5 drives the connecting shaft 6 to rotate, the connecting shaft 6 drives the round tube support body 4 to rotate, and the round tube support body 4 drives the round tube 3 to rotate. When acquiring images, the active dial 2 is rotated at a constant speed. When the active dial 2 enters the slot I of the groove wheel 5, it will drive the groove wheel 5 to rotate. When the active dial 2 completely leaves the slot I of the groove wheel 5, the locking arc of the active dial 2 and the concave arc of the groove wheel 5 lock each other, and the groove wheel 5 stops rotating. At this time, the first image of the circular tube 3 is captured. Insert the cylindrical pin XI of the active dial 2 into the slot I of the groove wheel 5. The slot I and the rotating arm X of the active dial 2 are in a straight line. The round tube 3 is placed on the round tube support 4. Rotate the active dial 2 clockwise. As the active dial 2 rotates at a constant speed, the cylindrical pin XI of the active dial 2 drives the grooved wheel 5 to rotate. The cylindrical pin XI of the active dial 2 separates from the groove I of the grooved wheel 5. A part of the convex locking arc IX of the active dial 2 coincides with the concave locking arc V of the grooved wheel 5 and locks each other. The grooved wheel 5 stops rotating, and the first image of the circular tube 3 is captured. As the active dial 2 rotates at a constant speed, the convex locking arc IX of the active dial 2 completely separates from the concave locking arc V of the grooved wheel 5. The cylindrical pin XI of the active dial 2 enters the groove II of the grooved wheel 5, driving the grooved wheel 5 to rotate. As the active dial 2 rotates at a constant speed, when the cylindrical pin XI of the active dial 2 completely leaves the groove II of the grooved wheel 5, a part of the convex locking arc IX of the active dial 2 coincides with the concave locking arc VI of the grooved wheel 5 and locks each other. The grooved wheel 5 stops rotating, and the second image of the circular tube 3 is taken. As the active dial 2 rotates at a constant speed, the convex locking arc IX of the active dial 2 completely separates from the concave locking arc VI of the grooved wheel 5. The cylindrical pin XI of the active dial 2 enters the groove III of the grooved wheel 5, driving the grooved wheel 5 to rotate again. As the active dial 2 rotates at a constant speed, when the cylindrical pin of the active dial 2 completely leaves the groove III of the grooved wheel 5, a part of the convex locking arc IX of the active dial 2 coincides with the concave locking arc VII of the grooved wheel 5, locking each other. The grooved wheel 5 stops rotating, and the third image of the circular tube 3 is taken. As the active dial 2 rotates at a constant speed, the convex locking arc IX of the active dial 2 completely separates from the concave locking arc VII of the grooved wheel 5. The cylindrical pin XI of the active dial 2 enters the groove IV of the grooved wheel 5, driving the grooved wheel 5 to rotate again. As the active dial 2 rotates at a constant speed, when the cylindrical pin XI of the active dial 2 completely leaves the groove IV of the grooved wheel 5, a part of the convex locking arc IX of the active dial 2 coincides with the concave locking arc VIII of the grooved wheel 5, locking each other. The grooved wheel 5 stops rotating, and the fourth image of the circular tube 3 is captured.

[0018] After completing the image acquisition of the sample surface, remove the circular tube 3.

[0019] Example 2: As Figures 1-10 As shown, this embodiment has the same structure as embodiment 1, except that the base 1 is made of metal and is machined, and the bearing is a needle roller bearing. The connecting shaft 6 is made of metal and is machined. The active dial 2 is powered by an electric motor driven by a transmission device. The active dial 2 has a rotating shaft connected to the electric motor via a coupling, which drives the active dial 2 to rotate. The rotating shaft of the active dial 2 is a stepped shaft, which engages with the inner ring of the bearing to achieve axial positioning, creating a certain gap between the active dial 2 and the base 1. The connecting shaft 6 is also a stepped shaft, engaging with the grooved wheel 5 to achieve axial positioning, creating a certain gap between the grooved wheel 5 and the base 1. The cylindrical support 4 has a rectangular slot at its bottom center, which engages with the square end of the connecting shaft 6.

[0020] The circular tube support 4 is designed as a cone, with a lower end face K having a diameter of X cm and an upper end face M having a diameter of Y cm, where X cm is greater than Y cm. The circular tube support 4 can also be designed as a stepped shaft, with different stepped sections used to support circular tubes of different diameters. The gap between the circular tube 3 and the circular tube support 4 can be filled with common materials to ensure friction between them.

[0021] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A laboratory-grade auxiliary device for acquiring images of the surface of a circular tube, characterized in that: Includes base (1), active dial (2), round tube support (4), grooved wheel (5), and connecting shaft (6); The base (1) has two stepped holes, namely stepped hole A and stepped hole B, for installing bearings. The active dial (2) is equipped with a rotating shaft, which is a stepped shaft, and the rotating shaft is installed on the bearing in stepped hole A. The grooved wheel (5) is mounted on the connecting shaft (6). One end of the circular end of the connecting shaft (6) is mounted on the stepped hole B of the base (1) through a bearing. One end of the square end of the connecting shaft (6) is mounted on a round tube support (4). The round tube support (4) holds the round tube (3) to be acquired.

2. The auxiliary device for acquiring images of the surface of a circular tube in a laboratory according to claim 1, characterized in that: The active dial (2) and the grooved wheel (5) constitute a grooved wheel mechanism. The grooved wheel (5) is evenly provided with 4 slots. A groove (7) is provided on both sides of one end of the grooved wheel (5) to mark the starting position and prevent mistake.

3. The auxiliary device for acquiring images of the surface of a circular tube in a laboratory according to claim 2, characterized in that: The active dial (2) is a disc with an inwardly concave arc on one side. The convex part of the disc is the convex locking arc IX. The disc is provided with a rotating arm X, and the end of the rotating arm X is provided with a cylindrical pin XI. The outer edge of the grooved wheel (5) is evenly distributed with four inwardly concave arcs, namely arc V, arc VI, arc VII, and arc VIII. Arc V, arc VI, arc VII, and arc VIII are the concave locking arcs of the grooved wheel (5).

4. The auxiliary device for acquiring images of the surface of a circular tube in a laboratory according to claim 1, characterized in that: The circular tube support (4) is a cone with a large diameter at one end and a small diameter at the other end. The bottom diameter is large, and a rectangular hole is opened in the center of the large bottom end for installation with the square end of the connecting shaft (6).

5. The auxiliary device for acquiring images of the surface of a circular tube in a laboratory according to claim 1, characterized in that: The groove wheel (5) is interference-fitted with the connecting shaft (6).

Images