Calibrating device for steel ruler

Abstract

The utility model relates to the technical field of steel ruler calibration, in particular to a calibration device for a steel ruler, which is characterized in that a movable camera mechanism is mounted at the top end of a processing table, and a controller is mounted on the front side of the processing table; a sliding groove is formed in the top face of the machining table. A verification structure is installed on the top face of the machining table and comprises a standard ruler, the standard ruler is fixedly installed at the rear end of the top face of the machining table, an L-shaped transparent plate is installed on the front side of the standard ruler, a sliding plate is installed at the right end of the front side of the L-shaped transparent plate, and an abutting plate is fixedly connected to the top face of the sliding plate. A threaded rod is movably mounted in the sliding groove through a bearing, and a motor is fixedly mounted on the right side wall of the machining table. According to the utility model, the standard ruler and the to-be-calibrated ruler are horizontally arranged, so that the scales on the two groups of rulers can be conveniently and intuitively calibrated by moving the camera mechanism, and the efficiency and the precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ruler calibration, and more specifically, to a calibration device for a steel ruler. Background Art

[0002] The steel ruler is the simplest length measuring tool and needs to be calibrated after it is produced.

[0003] In this regard, China's patent application number: CN202121164596.0 discloses an automatic calibration device for a steel ruler, including a workbench, a horizontally arranged slide groove is opened on one side of the top of the workbench, a horizontally arranged spring is installed on one side of the slide groove, a slider is slidably installed in the slide groove, one end of the spring is fixedly connected to the slider, a first fixed block is slidably installed on the top of the workbench, the first fixed block is fixedly connected to the slider, a second fixed block is installed on the top of the workbench, a storage groove is opened on one side of the first fixed block, a steel ruler body is provided between the first fixed block and the second fixed block, one end of the steel ruler body is located in the storage groove, a vertically arranged vertical rod is slidably installed on the top of the first fixed block, and the bottom end of the vertical rod extends into the storage groove; the utility model can effectively fix the steel ruler body, ensure the accuracy of the calibration data, and at the same time improve the measurement efficiency and accuracy.

[0004] The calibration device can perform calibration and achieve the calibration effect by setting a standard ruler on the upper side of the calibrated ruler. However, in actual use, since the calibrated ruler and the standard ruler are at different heights, and therefore at different distances from the camera on the upper side, when using the camera to calibrate the scale, it is necessary to constantly adjust the focal length in order to observe the scales on the two sets of rulers separately, which is inconvenient and cannot be compared intuitively, which limits the use of the device.

[0005] Therefore, in order to solve the above technical problems, the present application proposes a calibration device for a steel ruler. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a calibration device for a steel ruler.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A calibration device for a steel ruler comprises: a processing table, a mobile camera mechanism is installed on the top of the processing table, and a controller is installed on the front of the processing table;

[0009] A slide groove is provided on the top surface of the processing table;

[0010] A calibration structure is installed on the top surface of the processing table, and the calibration structure includes a standard ruler, which is fixedly installed on the rear end of the top surface of the processing table, an L-shaped transparent plate is installed on the front side of the standard ruler, a sliding plate is installed on the front right end of the L-shaped transparent plate, and an abutment plate is fixedly connected to the top surface of the sliding plate. A threaded rod is movably installed inside the slide groove through a bearing, and a motor is fixedly installed on the right side wall of the processing table.

[0011] Preferably, an auxiliary structure is installed on the top of the processing table, and the auxiliary structure includes an electric telescopic rod, and the electric telescopic rod is fixedly installed on the top of the processing table, and the protruding end of the electric telescopic rod is fixedly connected to a pressure rod.

[0012] Preferably, the front side of the standard ruler is in contact with the back side of the L-shaped transparent plate, and the sliding plate is slidably installed inside the sliding groove.

[0013] Preferably, the threaded rod passes through the sliding plate, and the threaded rod is threadedly connected to the sliding plate, and the top surface of the sliding plate is flush with the top surface of the L-shaped transparent plate.

[0014] Preferably, the output end of the motor is fixedly connected to the threaded rod.

[0015] Preferably, the electric telescopic rod is located at the front side of the mobile camera mechanism, and the pressure rod is located at the upper side of the front end of the standard ruler.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the utility model, the standard ruler is installed on the top surface of the processing table, and an L-shaped transparent plate is installed on the front side of the standard ruler. The L-shaped transparent plate is padded between the standard ruler and the ruler to be tested, which can prevent the ruler to be tested from frequently fitting the standard ruler and causing the scale on the standard ruler to be worn, so that the scale is clear, the standard ruler and the ruler to be tested are kept horizontal, and the efficiency and accuracy are improved by visually calibrating the scales on the two sets of rulers. The left end of the standard ruler can limit the position of the left end of the ruler to be tested, and the set stop plate can limit the ruler to be tested on the right side, and the stop plate is driven to move by the threaded connection between the threaded rod and the sliding plate, so that the movement of the stop plate is convenient and stable, and the motor can provide power for the rotation of the threaded rod;

[0018] 2. In the utility model, the electric telescopic rod is started, and the electric telescopic rod can drive the pressure rod to descend. The pressure rod is located on the upper side of the calibrated ruler. After the pressure rod descends, it can press on the top surface of the calibrated ruler, and can straighten the calibrated ruler to avoid bending of the calibrated ruler, which affects the calibration effect with the standard ruler, thereby improving the user experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the explosion of the structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the top view of the structure of the verification structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the structural explosion of the verification structure of the utility model.

[0024] 1. Processing table; 11. Mobile camera mechanism; 12. Controller; 13. Slide; 2. Calibration structure; 21. Standard ruler; 22. L-shaped transparent plate; 23. Sliding plate; 24. Abutment plate; 25. Threaded rod; 26. Motor; 3. Auxiliary structure; 31. Electric telescopic rod; 32. Pressure rod. DETAILED DESCRIPTION

[0025] See also Figure 1-4 , the utility model provides a calibration device for a steel ruler embodiment:

[0026] The processing table 1, mobile camera mechanism 11, controller 12, motor 26 and electric telescopic rod 31 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0027] A calibration device for a steel ruler comprises: a processing table 1, a mobile camera mechanism 11 is installed on the top of the processing table 1, and a controller 12 is installed on the front of the processing table 1;

[0028] A slide groove 13 is provided on the top surface of the processing table 1;

[0029] The top surface of the processing table 1 is installed with a calibration structure 2, which includes a standard ruler 21, which is fixedly installed at the rear end of the top surface of the processing table 1, an L-shaped transparent plate 22 is installed on the front side of the standard ruler 21, a sliding plate 23 is installed on the front right end of the L-shaped transparent plate 22, and a stop plate 24 is fixedly connected to the top surface of the sliding plate 23. A threaded rod 25 is movably installed inside the slide groove 13 through a bearing. A motor 26 is fixedly installed on the right side wall of the processing table 1, and the standard ruler 21 is installed on the top surface of the processing table 1, and an L-shaped transparent plate 22 is installed on the front side of the standard ruler 21. The L-shaped transparent plate 22 is cushioned between the standard ruler 21 and the The middle of the calibration ruler can prevent the calibrated ruler from frequently fitting against the standard ruler 21, which would cause the scale on the standard ruler 21 to wear out, so that the scale is clear, and the standard ruler 21 is kept level with the calibrated ruler, which is convenient for intuitively calibrating the scales on the two sets of rulers to improve efficiency and accuracy, and the left end of the standard ruler 21 can limit the position of the left end of the calibrated ruler, and the set abutment plate 24 can limit the calibrated ruler on the right side, and the abutment plate 24 is driven to move by the threaded connection between the threaded rod 25 and the sliding plate 23, so that the movement of the abutment plate 24 is convenient and stable, and the motor 26 can provide power for the rotation of the threaded rod 25.

[0030] Furthermore, an auxiliary structure 3 is installed on the top of the processing table 1, and the auxiliary structure 3 includes an electric telescopic rod 31, which is fixedly installed on the top of the processing table 1. The protruding end of the electric telescopic rod 31 is fixedly connected to a pressure rod 32. When the electric telescopic rod 31 is started, the electric telescopic rod 31 can drive the pressure rod 32 to descend. The pressure rod 32 is located on the upper side of the calibrated ruler. After the pressure rod 32 is descended, it can be pressed on the top surface of the calibrated ruler, which can straighten the calibrated ruler and avoid bending of the calibrated ruler, which affects the calibration effect with the standard ruler 21, thereby improving the user experience of the device.

[0031] Furthermore, the front of the standard ruler 21 is fitted with the back of the L-shaped transparent plate 22, and the sliding plate 23 is slidably installed inside the slide groove 13. The L-shaped transparent plate 22 is padded between the standard ruler 21 and the calibrated ruler, which can prevent the calibrated ruler from frequently fitting with the standard ruler 21, thereby preventing the scale on the standard ruler 21 from being worn, so that the scale is clear. The sliding plate 23 can move left and right in the slide groove 13 to adjust the position of the abutment plate 24.

[0032] Furthermore, the threaded rod 25 passes through the sliding plate 23, and the threaded rod 25 is threadedly connected to the sliding plate 23. The top surface of the sliding plate 23 is flush with the top surface of the L-shaped transparent plate 22. The rotation of the threaded rod 25 can drive the sliding plate 23 to move left and right in the slide groove 13 to cooperate with the L-shaped transparent plate 22 to limit and fix the calibrated ruler.

[0033] Furthermore, the output end of the motor 26 is fixedly connected to the threaded rod 25 , and the motor 26 provides power for the rotation of the threaded rod 25 .

[0034] Furthermore, the electric telescopic rod 31 is located on the front side of the mobile camera mechanism 11, and the pressure rod 32 is located on the upper side of the front end of the standard ruler 21. The pressure rod 32 can press down the calibrated ruler installed on the front side of the standard ruler 21, so that the calibrated ruler is straight, thereby ensuring the calibration effect.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A calibration device for a steel ruler, comprising: A processing platform (1), wherein a mobile camera mechanism (11) is installed on the top of the processing platform (1), and a controller (12) is installed on the front of the processing platform (1); Features: The top surface of the processing table (1) is provided with a slide groove (13); The top surface of the processing table (1) is installed with a calibration structure (2), and the calibration structure (2) includes a standard ruler (21), and the standard ruler (21) is fixedly installed at the rear end of the top surface of the processing table (1), and an L-shaped transparent plate (22) is installed on the front side of the standard ruler (21), and a sliding plate (23) is installed on the front right end of the L-shaped transparent plate (22), and the top surface of the sliding plate (23) is fixedly connected with a stop plate (24), and a threaded rod (25) is movably installed inside the slide groove (13) through a bearing, and a motor (26) is fixedly installed on the right side wall of the processing table (1).

2. A calibration device for a steel ruler according to claim 1, characterized in that: An auxiliary structure (3) is installed at the top of the processing table (1), and the auxiliary structure (3) comprises an electric telescopic rod (31). The electric telescopic rod (31) is fixedly installed at the top of the processing table (1), and the protruding end of the electric telescopic rod (31) is fixedly connected to a pressure rod (32).

3. A calibration device for a steel ruler according to claim 1, characterized in that: The front side of the standard ruler (21) is fitted with the back side of the L-shaped transparent plate (22), and the sliding plate (23) is slidably mounted inside the sliding groove (13).

4. A calibration device for a steel ruler according to claim 1, characterized in that: The threaded rod (25) passes through the sliding plate (23), and the threaded rod (25) is threadedly connected to the sliding plate (23), and the top surface of the sliding plate (23) is flush with the top surface of the L-shaped transparent plate (22).

5. The calibration device for a steel ruler according to claim 1, characterized in that: The output end of the motor (26) is fixedly connected to the threaded rod (25).

6. A calibration device for a steel ruler according to claim 2, characterized in that: The electric telescopic rod (31) is located on the front side of the mobile camera mechanism (11), and the pressure rod (32) is located on the upper side of the front end of the standard ruler (21).

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