High-precision measurement calibration device for comparison instrument

Abstract

The invention discloses a high-precision measurement and calibration device for a comparison instrument. The high-precision measurement and calibration device comprises a bottom plate, a supporting column, a mounting plate, a driving mechanism, a moving block and a measurement and calibration assembly, the driving mechanism drives the mounting plate to vertically move on the supporting column through a motor, a lead screw and a nut, the moving block is horizontally and slidably connected with the mounting plate through a dovetail groove, and the measurement and calibration assembly is mounted on the moving block and used for measuring and calibrating a comparison instrument. The device is further provided with a guide rod and a fine adjustment mechanism, the guide rod improves the moving stability and precision of the mounting plate, and the fine adjustment mechanism achieves fine adjustment of the moving block through a fine adjustment screw and a fine adjustment nut. The system has the advantages of high-precision measurement and calibration, multi-dimensional dynamic adjustment, high stability and anti-interference performance, modular design, combination of automation and manual adjustment and the like, and the calibration precision and the operation efficiency of the comparison instrument are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of measurement and calibration, and in particular relates to a high-precision measurement and calibration device for a comparator. Background Art

[0002] Comparators are widely used in many fields such as industrial production and scientific research. The accuracy of their measurements is crucial for product quality control and the reliability of experimental data. However, after long-term use, existing comparators are prone to measurement deviations and require measurement calibration. The current calibration device has problems such as low calibration accuracy and inconvenient operation, which makes it difficult to meet the calibration requirements of high-precision comparators. Therefore, it is of great practical significance to design a device that can achieve high-precision measurement and calibration. Summary of the invention

[0003] The object of the present invention is to provide a high-precision measurement and calibration device for a comparator, aiming to improve the accuracy and efficiency of the measurement and calibration of the comparator, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-precision measurement and calibration device for a comparator, comprising a base plate, support columns arranged parallel to each other on the base plate, and a mounting plate arranged horizontally between the two support columns, the two ends of which are respectively slidably connected to the support columns, and the mounting plate can slide up and down on the support columns;

[0005] A driving mechanism is mounted on the base plate to drive the mounting plate to move on the supporting column;

[0006] A moving block is mounted on the mounting plate and slides horizontally on the mounting plate;

[0007] The measurement calibration component is mounted on the moving block and is used to perform measurement calibration on the comparator.

[0008] Preferably, the driving mechanism includes a motor, a screw and a nut. The motor is fixedly mounted on the base plate. One end of the screw is fixedly connected to the output shaft of the motor, and the other end is rotatably connected to the mounting plate through a bearing. The nut is sleeved on the screw and cooperates with the screw thread. The nut is fixedly connected to the mounting plate. When the motor is started, the screw rotates, driving the nut to move along the axial direction of the screw, thereby realizing the up and down movement of the mounting plate.

[0009] Preferably, a dovetail groove is provided on the moving block, and a dovetail block is correspondingly provided on the mounting plate, and the dovetail block is slidably matched with the dovetail groove.

[0010] Preferably, the measurement and calibration assembly includes a mounting base, a measuring sensor and a calibration block, the mounting base is fixedly mounted on the moving block, the measuring sensor is mounted on one side of the mounting base, and the calibration block is mounted on the other side of the mounting base, the positions of the measuring sensor and the calibration block correspond, the measuring sensor is used to obtain measurement data of the comparator, and the calibration block is used to provide a calibration reference for the comparator.

[0011] Preferably, it also includes a guide rod, which is arranged parallel to one side of the screw rod, and the two ends of the guide rod are respectively fixedly connected to the base plate and the mounting plate. The nut is sleeved on the guide rod and can slide on the guide rod. The setting of the guide rod can guide the movement of the nut, thereby improving the stability and accuracy of the movement of the mounting plate.

[0012] Preferably, a fine-tuning mechanism is further included. A fine-tuning mechanism is arranged on the moving block for fine-tuning the position of the moving block. The fine-tuning mechanism includes a fine-tuning screw and a fine-tuning nut. One end of the fine-tuning screw is rotatably connected to the moving block through a bearing, and the other end passes through the moving block and cooperates with the fine-tuning nut thread. The fine-tuning nut is fixedly connected to the mounting plate. By rotating the fine-tuning screw, the moving block can be moved a small distance on the mounting plate, thereby achieving precise adjustment of the measurement calibration position.

[0013] Technical effects and advantages of the present invention:

[0014] 1. High-precision measurement and calibration, through the mechanical design of the screw-nut drive mechanism, guide rod and dovetail groove sliding fit, combined with the fine control of the fine-tuning mechanism, to achieve smooth and high-precision displacement of the mounting plate and the moving block, to ensure that the position error of the measuring sensor and the calibration block is controlled at the micron level, significantly improving the calibration accuracy of the comparator.

[0015] 2. Multi-dimensional dynamic adjustment capability. The device supports coarse adjustment of the mounting plate in the vertical direction (through the motor-driven lead screw) and fine adjustment of the moving block in the horizontal direction (through the fine-tuning screw). At the same time, the measurement and calibration components can be flexibly positioned with the moving block to meet the calibration requirements of different positions and multiple angles, and adapt to complex measurement scenarios.

[0016] 3. High stability and anti-interference, the parallel setting of the guide rod and the lead screw, the rigid sliding fit of the dovetail groove and the dovetail block, and the stable connection design between the base plate and the support column can effectively suppress mechanical vibration and external interference, ensuring the stability and repeatability of the device operation during the calibration process.

[0017] 4. Modular design, high functional integration, drive, guide, measurement and calibration modules are independently designed and work together, compact structure, easy maintenance and upgrade. The calibration component (integrated in the moving block can be quickly adapted to different models of comparators, with strong versatility.

[0018] 5. Combining automation with manual adjustment, the motor drive achieves fast coarse adjustment and reduces manual operation time; the fine-tuning mechanism supports manual fine adjustment, taking into account both efficiency and accuracy; the mechanical limit design of the guide rod and the dovetail groove avoids the risk of overtravel and improves operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 Assembly diagram of mobile block 5 and measurement calibration components.

[0021] In the figure: base plate 1, support column 2, mounting plate 3, drive mechanism 4, moving block 5, measurement and calibration component 6, guide rod 7, motor 41, screw rod 42, dovetail groove 51, dovetail block 52, mounting seat 61, measurement sensor 62, calibration block 63, fine-tuning screw 81, and fine-tuning nut 82. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 - Figure 2 A specific embodiment of a high-precision measurement and calibration device for a comparator of the present invention is shown, which comprises a base plate 1, support columns 2 arranged parallel to each other on the base plate 1, and a mounting plate 3 arranged horizontally between the two support columns 2, and whose two ends are respectively slidably connected to the support columns 2, and the mounting plate 3 can slide up and down on the support columns 2;

[0024] A driving mechanism 4 is mounted on the base plate 1 to drive the mounting plate 3 to move on the support column 2;

[0025] The moving block 5 is mounted on the mounting plate 3 and slides horizontally on the mounting plate;

[0026] A measurement and calibration component 6, mounted on the moving block 5, for measuring and calibrating the comparator;

[0027] The driving mechanism 4 includes a motor 41, a screw rod 42 and a nut. The motor 41 is fixedly mounted on the bottom plate 1. One end of the screw rod 42 is fixedly connected to the output shaft of the motor 41, and the other end is rotatably connected to the mounting plate 3 through a bearing. The nut is sleeved on the screw rod 42 and threadedly matched with the screw rod 42. The nut is fixedly connected to the mounting plate 3. When the motor 41 is started, the screw rod 42 rotates, driving the nut to move axially along the screw rod 42, thereby realizing the up and down movement of the mounting plate 3.

[0028] Furthermore, a dovetail groove 51 is provided on the moving block 5, and a dovetail block 52 is correspondingly provided on the mounting plate 3, and the dovetail block 52 is slidably matched with the dovetail groove 51;

[0029] Further, the measurement and calibration assembly 6 includes a mounting seat 61, a measurement sensor 62 and a calibration block 63, wherein the mounting seat 61 is fixedly mounted on the moving block 5, the measurement sensor 62 is mounted on one side of the mounting seat 61, and the calibration block 63 is mounted on the other side of the mounting seat 61, and the positions of the measurement sensor 62 and the calibration block 63 correspond to each other, the measurement sensor 62 is used to obtain the measurement data of the calibrator, and the calibration block 63 is used to provide a calibration reference for the calibrator;

[0030] Furthermore, it also includes a guide rod 7, which is arranged parallel to one side of the screw rod 42, and the two ends of the guide rod 7 are respectively fixedly connected to the bottom plate 1 and the mounting plate 3, and the nut is sleeved on the guide rod 7 and can slide on the guide rod 7. The setting of the guide rod 7 can guide the movement of the nut, thereby improving the stability and accuracy of the movement of the mounting plate;

[0031] Furthermore, it also includes a fine-tuning mechanism. A fine-tuning mechanism is arranged on the moving block 5 for fine-tuning the position of the moving block. The fine-tuning mechanism includes a fine-tuning screw 81 and a fine-tuning nut 82. One end of the fine-tuning screw 81 is rotatably connected to the moving block 5 through a bearing, and the other end passes through the moving block 5 and is threadedly engaged with the fine-tuning nut 82. The fine-tuning nut 82 is fixedly connected to the mounting plate 3. By rotating the fine-tuning screw, the moving block can be moved a small distance on the mounting plate, thereby realizing precise adjustment of the measurement calibration position.

[0032] First, place the device in a suitable working position, and ensure the stability of the device by the anti-slip pad at the bottom of the base plate. When the comparator needs to be measured and calibrated, start the motor of the drive mechanism, the motor drives the screw to rotate, and the nut moves on the screw, thereby driving the mounting plate to move up and down on the support column, so that the measurement and calibration assembly reaches the approximate calibration position of the comparator. Then, the position of the moving block is fine-tuned by the fine-tuning mechanism, and the fine-tuning screw is turned to move the moving block a small distance on the mounting plate until the position of the measurement and calibration assembly is accurately aligned with the calibration part of the comparator. At this time, the measuring sensor obtains the measurement data of the comparator, and the calibration block provides a calibration reference for the comparator. By comparing and analyzing the data obtained by the measuring sensor with the calibration reference, high-precision measurement and calibration of the comparator can be achieved.

[0033] The applicant further declares that the present invention illustrates the implementation method and device structure of the present invention through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned implementation methods, that is, it does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the implementation method selected by the present invention, addition of steps, selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention.

[0034] The present invention is not limited to the above-mentioned embodiments, and all methods that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims

1. A high-precision measurement and calibration device for a comparator, characterized in that: It comprises a base plate (1), support columns (2) arranged parallel to each other on the base plate (1), and a mounting plate (3) arranged horizontally between the two support columns (2) and having two ends thereof respectively connected in a sliding manner to the support columns (2), wherein the mounting plate (3) can slide up and down on the support columns (2); A driving mechanism (4) is mounted on the base plate (1) to drive the mounting plate (3) to move on the support column (2); A moving block (5) is mounted on the mounting plate (3) and slides horizontally on the mounting plate; The measurement calibration component (6) is mounted on the moving block (5) and is used to perform measurement calibration on the comparator.

2. A high-precision measurement and calibration device for a comparator according to claim 1, characterized in that: The driving mechanism (4) comprises a motor (41), a screw rod (42) and a nut. The motor (41) is fixedly mounted on the base plate (1). One end of the screw rod (42) is fixedly connected to the output shaft of the motor (41), and the other end is rotatably connected to the mounting plate (3) via a bearing. The nut is sleeved on the screw rod (42) and is threadably engaged with the screw rod (42). The nut is fixedly connected to the mounting plate (3). When the motor (41) is started, the screw rod (42) rotates, driving the nut to move axially along the screw rod (42), thereby realizing the up and down movement of the mounting plate (3).

3. The high-precision measurement and calibration device for a comparator according to claim 1, characterized in that: A dovetail groove (51) is provided on the moving block (5), and a dovetail block (52) is correspondingly provided on the mounting plate (3), wherein the dovetail block (52) is slidably matched with the dovetail groove (51).

4. The high-precision measurement and calibration device for a comparator according to claim 1, characterized in that: The measurement calibration assembly (6) comprises a mounting seat (61), a measurement sensor (62) and a calibration block (63); the mounting seat (61) is fixedly mounted on the moving block (5); the measurement sensor (62) is mounted on one side of the mounting seat (61); and the calibration block (63) is mounted on the other side of the mounting seat (61); the positions of the measurement sensor (62) and the calibration block (63) correspond to each other; the measurement sensor (62) is used to obtain measurement data of the calibrator; and the calibration block (63) is used to provide a calibration reference for the calibrator.

5. The high-precision measurement and calibration device for a comparator according to claim 2, characterized in that: It also includes a guide rod (7), which is arranged parallel to one side of the screw rod (42), and the two ends of the guide rod (7) are respectively fixedly connected to the base plate (1) and the mounting plate (3), and the nut is sleeved on the guide rod (7) and can slide on the guide rod (7).

6. The high-precision measurement and calibration device for a comparator according to claim 1, characterized in that: The fine-tuning mechanism is also included. The fine-tuning mechanism is provided on the moving block (5) and is used to fine-tune the position of the moving block. The fine-tuning mechanism includes a fine-tuning screw (81) and a fine-tuning nut (82). One end of the fine-tuning screw (81) is rotatably connected to the moving block (5) via a bearing, and the other end passes through the moving block (5) and is threadably engaged with the fine-tuning nut (82). The fine-tuning nut (82) is fixedly connected to the mounting plate (3).

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