Calibration and inspection device for right-angle ruler
By designing a calibration inspection device for right angle rulers, the motor drives the threaded rod and pull block to drive the movement of the contrast block, the automatic calibration inspection of the angle and scale of right angle rulers is achieved, solving the problem of detection result deviation caused by manual comparison in the prior art, and improving the detection accuracy.
Patent Information
- Application Number
- CN202421863294.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the prior art, calibration inspection of right-angle rulers relies on manual alignment of standard rulers, resulting in deviations in the detection results.
A calibration inspection device for right-angle ruler is designed, including an operating table, fixed block, movable block, motor, threaded rod and calibration rod. The threaded rod drives the movable block to move through the motor, contact with the fixed block, observe the gap to judge the angle is qualified; at the same time, the control block is driven to move by pulling the block, and the calibration rod is compared with the right-angle ruler scale to determine whether the scale is consistent.
Automatic calibration inspection of right-angle ruler angle and scale is realized, reducing human error and improving the accuracy of detection results.
Smart Images
Figure CN222824934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of square ruler inspection devices, in particular to a calibration inspection device for a square ruler. Background Art
[0002] The square is a commonly used measuring tool in inspection and marking work. It is used to detect the verticality of the workpiece and the verticality of the workpiece's relative position. It is a professional measuring tool suitable for verticality inspection of machine tools, mechanical equipment and parts, installation, processing positioning, marking, etc. It is an important measuring tool in the machinery industry.
[0003] The square is simply called an angle ruler, and is also called a ruler in some occasions. The square is usually made of steel, cast iron or granite. According to the material, it can be divided into cast iron square, magnesium aluminum square and granite square.
[0004] With respect to the existing related technologies, the inventors believe that the following defects exist: after the square ruler is produced in the prior art, workers are generally required to compare it with a standard ruler to check whether it is qualified. However, since the standard ruler is not fixed during the inspection, the test results are biased. Utility Model Content
[0005] In order to solve the technical problem that after the existing square ruler is produced, workers are generally required to compare with a standard ruler to check whether it is qualified, but the standard ruler is not fixed during the inspection, which leads to deviation in the inspection result, the utility model provides a calibration inspection device for the square ruler.
[0006] The utility model is implemented by the following technical scheme: a calibration and inspection device for a square ruler, comprising an operating table, a plurality of columns are fixedly connected around the bottom of the operating table, a fixed block is fixedly connected to the top of the operating table, a movable block is movably connected to the top of the operating table, a motor is arranged on one side of the operating table, a threaded rod is fixedly connected to one end of the motor, a threaded block is threadedly connected to one end of the threaded rod, and the top of the threaded block is fixedly connected to the bottom of the threaded rod;
[0007] Among them, a first slide groove is processed on one side of the fixed block, the interior of the first slide groove is movably connected with a calibration rod, the top of the calibration rod is fixedly connected with a connecting block, the top of the connecting block is fixedly connected with a comparison block, and the top of the comparison block is fixedly connected with a pulling block.
[0008] Preferably, a groove is processed inside the operating table, the threaded rod is rotatably connected inside the groove, and the threaded block is movably connected inside the groove.
[0009] Preferably, a second slide groove is processed on the top of the fixing block, and the connecting block is movably connected inside the second slide groove.
[0010] Preferably, the comparison block is movably connected to the top of the fixed block, and a standard scale is provided on one side of the top of the fixed block.
[0011] Preferably, two movable grooves are processed inside the operating table, the groove is located in the middle of the two movable grooves, and two sliders are fixedly connected to the bottom of both ends of the movable block, and the sliders are movably connected inside the movable grooves.
[0012] Preferably, the bottom of the sliding block is fixedly connected to a limiting block, and the limiting block is movably connected to the bottom of the operating table.
[0013] Preferably, the fixed block and the movable block are both in an "L" shape.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] When the utility model is in use, the square to be tested is placed between the fixed block and the movable block, and the square is brought close to the fixed block. Then, the motor is started to drive the threaded rod to rotate, and the threaded rod drives the threaded block and the movable block to move, so that the movable block moves toward the fixed block and contacts the square, so that whether the angle of the square is qualified can be judged by observing whether there is a gap between the square and the fixed block and the movable block.
[0016] When the utility model is in use, by moving the pulling block, the pulling block will drive the comparison block to move, and the comparison block will drive the connecting block and the calibration rod to move, so that the standard scale on the surface of the fixed block aligned with the comparison block is compared with the scale on the surface of the square ruler aligned with the calibration rod, and it is judged whether the scales of the two are consistent, thereby judging whether the scale of the square ruler is qualified. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the connection structure between the operating table and the movable block of the utility model;
[0019] Figure 3 For the utility model Figure 2 Enlarged schematic diagram of part A in the middle.
[0020] In the figure: 1. operating table; 2. fixed block; 3. movable block; 4. column; 5. motor; 6. threaded block; 7. threaded rod; 8. groove; 9. first slide groove; 10. calibration rod; 11. second slide groove; 12. connecting block; 13. comparison block; 14. pulling block; 15. slider; 16. movable groove; 17. limit block. DETAILED DESCRIPTION
[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.
[0022] Example 1: Please refer to Figure 1 - Figure 3 A calibration and inspection device for a square ruler of the present embodiment comprises an operating table 1, a plurality of columns 4 are fixedly connected around the bottom of the operating table 1, a fixed block 2 is fixedly connected to the top of the operating table 1, a movable block 3 is movably connected to the top of the operating table 1, a motor 5 is arranged on one side of the operating table 1, a threaded rod 7 is fixedly connected to one end of the motor 5, a threaded block 6 is threadedly connected to one end of the threaded rod 7, the top of the threaded block 6 is fixedly connected to the bottom of the threaded rod 7, a first slide groove 9 is processed on one side of the fixed block 2, a calibration rod 10 is movably connected inside the first slide groove 9, a connection block 12 is fixedly connected to the top of the calibration rod 10, a comparison block 13 is fixedly connected to the top of the comparison block 13, and a pull block 14 is fixedly connected to the top of the comparison block 13;
[0023] The square to be inspected is placed between the fixed block 2 and the movable block 3, and the square is brought close to the fixed block 2. Then the motor 5 is started, the motor 5 drives the threaded rod 7 to rotate, the threaded rod 7 drives the threaded block 6 to move, the threaded block 6 drives the movable block 3 to move, so that the movable block 3 moves toward the fixed block 2 and contacts the square, so as to determine whether the angle of the square is qualified by observing whether there is a gap between the square and the fixed block 2 and the movable block 3.
[0024] Further, the comparison block 13 is movably connected to the top of the fixed block 2, and a standard scale is provided on one side of the top of the fixed block 2;
[0025] Secondly, by moving the pull block 14, the pull block 14 will drive the comparison block 13 to move, the comparison block 13 will drive the connection block 12 to move, and the connection block 12 will drive the calibration rod 10 to move, so that the calibration rod 10 moves along the top surface of the square ruler, so that the standard scale on the surface of the fixed block 2 aligned with the comparison block 13 is compared with the scale on the surface of the square ruler aligned with the calibration rod 10, and it is determined whether the scales of the two are consistent, thereby determining whether the scale of the square ruler is qualified;
[0026] Furthermore, a groove 8 is machined inside the operating table 1, the threaded rod 7 is rotatably connected inside the groove 8, and the threaded block 6 is movably connected inside the groove 8. When the threaded rod 7 drives the threaded block 6 to move, the threaded block 6 will move along the inside of the groove 8. By providing the groove 8, the groove 8 will guide the movement of the threaded block 6.
[0027] Furthermore, a second slide groove 11 is formed on the top of the fixing block 2, and the connecting block 12 is movably connected to the inside of the second slide groove 11. When the contrast block 13 drives the connecting block 12 to move, the connecting block 12 will move along the inside of the second slide groove 11.
[0028] Furthermore, two movable grooves 16 are processed inside the operating table 1, and the groove 8 is located in the middle of the two movable grooves 16. Two sliders 15 are fixedly connected to the bottom of both ends of the movable block 3, and the sliders 15 are movably connected inside the movable grooves 16. When the movable block 3 moves, the movable block 3 will drive the sliders 15 to move, and the sliders 15 will move along the inside of the movable grooves 16. By providing the movable grooves 16, the movable grooves 16 limit the sliders 15, so that the movable block 3 can maintain a stable state when moving;
[0029] Furthermore, the bottom of the slider 15 is fixedly connected to a limit block 17, and the limit block 17 is movably connected to the bottom of the operating table 1. By setting the limit block 17, the limit block 17 will limit the movement of the slider 15, thereby preventing the slider 15 from being separated from the inside of the movable groove 16;
[0030] Furthermore, the fixed block 2 and the movable block 3 are both "L" shaped, the inner angle of the fixed block 2 is a 90-degree right angle, and the outer side of the movable block 3 fits with the inner side of the fixed block 2, so that the fixed block 2 and the movable block 3 can detect whether the angle of the square ruler is standard.
[0031] Working principle: by placing the square to be tested between the fixed block 2 and the movable block 3, and bringing the square close to the fixed block 2, then starting the motor 5 to drive the threaded rod 7 to rotate, the threaded rod 7 will drive the threaded block 6 and the movable block 3 to move, so that the movable block 3 moves toward the fixed block 2 and contacts with the square, so as to observe whether there is a gap between the square and the fixed block 2 and the movable block 3, and then judge whether the angle of the square is qualified, and then move the pull block 14, the pull block 14 will drive the comparison block 13 to move, and the comparison block 13 will drive the connecting block 12 and the calibration rod 10 to move, so that the standard scale on the surface of the fixed block 2 aligned with the comparison block 13 is compared with the scale on the surface of the square aligned with the calibration rod 10, and judge whether the scales of the two are consistent, so as to judge whether the scale of the square is qualified.
[0032] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. A calibration and inspection device for a square ruler, comprising an operating table (1), characterized in that: A plurality of columns (4) are fixedly connected around the bottom of the operating table (1), a fixed block (2) is fixedly connected to the top of the operating table (1), a movable block (3) is movably connected to the top of the operating table (1), a motor (5) is arranged on one side of the operating table (1), one end of the motor (5) is fixedly connected to a threaded rod (7), one end of the threaded rod (7) is threadedly connected to a threaded block (6), and the top of the threaded block (6) is fixedly connected to the bottom of the threaded rod (7); A first slide groove (9) is formed on one side of the fixed block (2); a calibration rod (10) is movably connected inside the first slide groove (9); a connecting block (12) is fixedly connected to the top of the calibration rod (10); a comparison block (13) is fixedly connected to the top of the connection block (12); and a pull block (14) is fixedly connected to the top of the comparison block (13).
2. A calibration and inspection device for a square ruler according to claim 1, characterized in that: A groove (8) is machined inside the operating table (1), the threaded rod (7) is rotatably connected inside the groove (8), and the threaded block (6) is movably connected inside the groove (8).
3. A calibration and inspection device for a square ruler according to claim 1, characterized in that: A second slide groove (11) is formed on the top of the fixed block (2), and the connecting block (12) is movably connected inside the second slide groove (11).
4. A calibration and inspection device for a square ruler according to claim 1, characterized in that: The comparison block (13) is movably connected to the top of the fixed block (2), and a standard scale is provided on one side of the top of the fixed block (2).
5. A calibration and inspection device for a square ruler according to claim 2, characterized in that: Two movable grooves (16) are machined inside the operating table (1), the groove (8) is located in the middle of the two movable grooves (16), and two sliders (15) are fixedly connected to the bottom of both ends of the movable block (3), and the sliders (15) are movably connected inside the movable grooves (16).
6. A calibration and inspection device for a square ruler according to claim 5, characterized in that: The bottom of the sliding block (15) is fixedly connected to a limit block (17), and the limit block (17) is movably connected to the bottom of the operating table (1).
7. A calibration and inspection device for a square ruler according to claim 1, characterized in that: The fixed block (2) and the movable block (3) are both L-shaped.