High-precision outside micrometer calibration device

Abstract

The utility model relates to the technical field of external diameter micrometers, in particular to a high-precision external diameter micrometer calibration device, which comprises a calibration device main body, a standard component and an external diameter micrometer, an upper fixing plate and a lower supporting plate which are parallel to each other are respectively arranged above and below the calibration device main body, and a connecting side plate is connected between the upper fixing plate and the lower supporting plate. A temperature control mechanism is mounted on the back of the inner side of the connecting side plate, a box door is hinged and fixed to the front end of the connecting side plate, a first movable mounting base and a second movable mounting base are mounted at the lower end of the upper fixing plate and the upper end of the lower supporting plate correspondingly, a mounting piece is connected to the lower end of the first movable mounting base, and a rotating disc is rotationally mounted in the mounting piece. According to the high-precision external diameter micrometer calibration device, the temperature control structure is arranged in the box body structure, so that the external diameter micrometer is calibrated at a proper temperature, the external diameter micrometer and the standard component are respectively positioned and adjusted, the problem of inconvenience caused by replacement of the standard component is avoided, and the calibration efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of outside micrometers, in particular to a high-precision outside micrometer calibration device. Background Art

[0002] An outside micrometer, also known as a micrometer or micrometer screw, is a precision measuring instrument used to measure the external diameter of an object. It offers very high accuracy, typically reaching 0.01 mm (or less in some cases). An outside micrometer typically consists of a frame, a fixed anvil, a movable anvil, a main scale, a differential cylinder, a ratchet stop, and a locking device. It is widely used in machining, manufacturing, and scientific research. To ensure the accuracy of outside micrometer measurements, it must be regularly calibrated and inspected using a calibration device.

[0003] Existing outside micrometer calibration devices use standard parts to perform calibration processing on the outside micrometer. The calibration is performed by taking multiple measurements of the standard parts and taking an average value to judge the accuracy of the outside micrometer. However, multiple standard parts are usually used during the inspection of the outside micrometer. After replacing the standard parts, the positioning and adjustment must be carried out again, which is relatively inconvenient. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-precision outside micrometer calibration device to solve the problem raised in the above background technology that outside micrometers on the market usually need to use multiple standard parts during inspection, and they need to be re-positioned and adjusted after replacing the standard parts, which is relatively inconvenient.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-precision outside micrometer calibration device, comprising a calibration device main body, standard parts and an outside micrometer, wherein an upper fixed plate and a lower support plate parallel to each other are respectively provided on the upper and lower parts of the calibration device main body, and a connecting side plate is connected between the upper fixed plate and the lower support plate, a temperature control mechanism is installed on the inner back of the connecting side plate, and a box door is hingedly fixed to the front end of the connecting side plate, a first movable mounting seat and a second movable mounting seat are respectively installed at the lower end of the upper fixed plate and the upper end of the lower support plate, and a mounting part is connected to the lower end of the first movable mounting seat, a rotating disk is rotatably installed in the mounting part, and the standard parts are evenly spaced on the side of the rotating disk, support parts are symmetrically provided above the second movable mounting seat, and clamping parts are symmetrically provided between the support parts, the outside micrometer is clamped between the clamping parts, and the outside micrometer is placed above the support parts.

[0006] Preferably, the lower end of the upper fixed plate is movably engaged with the first movable mounting seat, and a first transmission mechanism with a screw structure is passed through the first movable mounting seat, and the first transmission mechanism is embedded and installed in the upper fixed plate, and a partition mesh plate is fixed in the connecting side plate, and the partition mesh plate is located between the temperature control mechanism and the second movable mounting seat.

[0007] Preferably, the bottom of the second movable mounting seat is movably engaged in the lower support plate, and a second transmission mechanism with a screw structure is passed through the second movable mounting seat, and the second transmission mechanism is embedded and installed in the lower support plate, the mounting surfaces of the second transmission mechanism and the first transmission mechanism are arranged in parallel, and the second transmission mechanism and the first transmission mechanism are arranged relatively vertically.

[0008] Preferably, a conveying screw is longitudinally rotatably provided in the second movable mounting seat, and the conveying screw is rotationally matched with the supporting member through a threaded structure, and the supporting member is longitudinally movably engaged with the second movable mounting seat.

[0009] Preferably, a third transmission mechanism is horizontally rotatably provided in the second movable mounting seat, and the third transmission mechanism is engaged with the conveying screw.

[0010] Preferably, a fourth transmission mechanism with a double-headed reverse thread structure is installed through the lower side of the clamping member, and the fourth transmission mechanism is embedded in the second movable mounting seat.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the high-precision outside micrometer calibration device is equipped with a temperature control structure within the housing structure, allowing the outside micrometer to be calibrated at a suitable temperature, and the outside micrometer and standard parts are positioned and adjusted separately, avoiding the inconvenience caused by replacing standard parts and improving calibration efficiency. The high-precision outside micrometer calibration device uses the second movable mounting seat for positioning the outside micrometer to move forward and backward, and the first movable mounting seat for positioning the standard part to move left and right, which can accurately control the relative position between the standard part and the outside micrometer, and fix the standard part on the rotating disk, allowing for convenient adjustment of the standard part. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a side view of a high-precision outside micrometer calibration device of the utility model;

[0013] Figure 2 This is a front view of a high-precision outside micrometer calibration device of the utility model;

[0014] Figure 3 This is a schematic diagram of the connection structure between the second movable mounting base and the outside micrometer of a high-precision outside micrometer calibration device of the utility model;

[0015] Figure 4This utility model is a high-precision outside micrometer calibration device Figure 3 Enlarged structural diagram at point A in the middle.

[0016] In the figure: 1. Calibration device body; 2. Upper fixed plate; 3. First movable mounting seat; 301. First transmission mechanism; 302. Mounting part; 303. Rotating disk; 304. Standard part; 4. Connecting side plate; 401. Partition mesh plate; 5. Temperature control mechanism; 6. Second movable mounting seat; 601. Clamping part; 602. Supporting part; 603. Second transmission mechanism; 604. Third transmission mechanism; 605. Conveying screw; 606. Fourth transmission mechanism; 7. Box door; 8. Lower support plate; 9. Outside micrometer. DETAILED DESCRIPTION

[0017] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4The utility model provides a technical solution: a high-precision outside micrometer calibration device, including a calibration device body 1, a standard part 304 and an outside micrometer 9, the calibration device body 1 is respectively provided with an upper fixed plate 2 and a lower support plate 8 parallel to each other on the upper and lower sides, and a connecting side plate 4 is connected between the upper fixed plate 2 and the lower support plate 8, a temperature control mechanism 5 is installed on the inner back of the connecting side plate 4, and a box door 7 is hingedly fixed to the front end of the connecting side plate 4, a first movable mounting seat 3 and a second movable mounting seat 6 are respectively installed on the lower end of the upper fixed plate 2 and the upper end of the lower support plate 8, and the lower end of the first movable mounting seat 3 is connected to a mounting piece 302, the lower end of the upper fixed plate 2 is movably engaged with the first movable mounting seat 3, and a first transmission screw structure is passed through the first movable mounting seat 3. The movable mechanism 301 is embedded in the upper fixed plate 2, and the partition mesh plate 401 is fixed in the connecting side plate 4, and the partition mesh plate 401 is located between the temperature control mechanism 5 and the second movable mounting seat 6. This structure rotates the first transmission mechanism 301, so that the first transmission mechanism 301 can drive the first movable mounting seat 3 to move left and right below the upper fixed plate 2 to adjust the position of the standard part 304. The standard parts 304 of different sizes can be rotated to the bottom by rotating the rotating disk 303, so that the outside micrometer 9 can measure the standard parts 304 of different sizes, thereby more accurately calibrating the outside micrometer 9. The rotating disk 303 is rotatably installed in the mounting part 302, and the standard parts 304 are evenly spaced and arranged on the side of the rotating disk 303. The bottom of the second movable mounting seat 6 is movably engaged with the lower support plate 8. A second transmission mechanism 603 with a screw structure is passed through the second movable mounting seat 6, and the second transmission mechanism 603 is embedded and installed in the lower support plate 8. The mounting surfaces of the second transmission mechanism 603 and the first transmission mechanism 301 are arranged in parallel, and the second transmission mechanism 603 and the first transmission mechanism 301 are relatively vertically arranged. This structure can realize the forward and backward movement of the second movable mounting seat 6 by rotating the second transmission mechanism 603, so that the outside diameter micrometer 9 can be moved to the standard part 304. When loading and unloading the outside diameter micrometer 9, the second movable mounting seat 6 can be moved to the opening position, which is convenient for the outside diameter micrometer. The loading and unloading processing of the micrometer 9, the support members 602 are symmetrically provided above the second movable mounting seat 6, and the clamping members 601 are symmetrically provided between the support members 602, and the outside micrometer 9 is clamped between the clamping members 601, and the third transmission mechanism 604 is provided for horizontal rotation in the second movable mounting seat 6, and the third transmission mechanism 604 is engaged with the transmission screw 605. This structure can drive the transmission screw 605 to rotate by rotating the third transmission mechanism 604, thereby realizing the rotation processing of the transmission screw 605. A fourth transmission mechanism 606 with a double-headed reverse thread structure is installed below the clamping member 601, and the fourth transmission mechanism 606 is embedded in the second movable mounting seat 6. This structure rotates the fourth transmission mechanism 606.The clamping member 601 can securely clamp the outside micrometer 9, ensuring that the outside micrometer 9 is securely positioned, eliminating the need to hold the outside micrometer 9 during calibration. The outside micrometer 9 is placed above the support member 602, and a transmission screw 605 is provided within the second movable mounting seat 6 for longitudinal rotation. The transmission screw 605 and the support member 602 are rotationally engaged via a threaded structure, and the support member 602 is longitudinally engaged with the second movable mounting seat 6. This structure, by rotating the transmission screw 605, can drive the support member 602 to move up and down, thereby reliably positioning the outside micrometer 9 and adapting to the positioning of outside micrometers 9 of various shapes.

[0019] Working principle: When using the high-precision outside micrometer calibration device, first open the box door 7, then rotate the second transmission mechanism 603, move the second movable mounting seat 6 to the opening position, and the lower support plate 8 supports and positions the second movable mounting seat 6. Then place the outside micrometer 9 on the second movable mounting seat 6, and then rotate the third transmission mechanism 604 on both sides of the second movable mounting seat 6 respectively, drive the transmission screw 605 to rotate and realize the rise of the support member 602, so that the support member 602 supports the two sides of the bottom of the outside micrometer 9, and then rotate the fourth transmission mechanism 606 to drive the clamping member 601 to move and clamp the outside micrometer 9, so as to realize the reliable positioning of the outside micrometer 9 on the second movable mounting seat 6, and the temperature control mechanism 5 makes the internal temperature of the calibration device main body 1 constant, and the partition screen 401 controls the temperature control mechanism 5 and the calibration The measuring area serves as a separator, so that the outside micrometer 9 is left to stand for a period of time under constant temperature conditions before calibration. The connecting side panel 4 and the box door 7 cooperate to form a relatively sealed structure. When calibrating, the second movable mounting seat 6 is moved to the position below the rotating disk 303, so that the standard part 304 is between the fixed anvil and the movable anvil of the outside micrometer 9, and then the first movable mounting seat 3 is driven to move by the rotation of the first transmission mechanism 301. The upper fixed plate 2 is used for the movable limiting treatment of the first movable mounting seat 3, so that the fixed anvil fits the standard part 304, and then the outside micrometer 9 is operated to measure the standard part 304. The rotating disk 303 rotates under the positioning of the mounting part 302, and standard parts 304 of different sizes can be replaced for accurate inspection of the outside micrometer 9, thereby completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision outside micrometer calibration device, comprising a calibration device body (1), a standard part (304) and an outside micrometer (9), characterized in that: The main body (1) of the calibration device is provided with an upper fixed plate (2) and a lower support plate (8) parallel to each other on the upper and lower sides respectively, and a connecting side plate (4) is connected between the upper fixed plate (2) and the lower support plate (8), a temperature control mechanism (5) is installed on the inner back of the connecting side plate (4), and a box door (7) is hingedly fixed on the front end of the connecting side plate (4), a first movable mounting seat (3) and a second movable mounting seat (6) are installed on the lower end of the upper fixed plate (2) and the upper end of the lower support plate (8), and the first movable mounting seat (5) is connected to the inner back of the connecting side plate (4). The lower end of the mounting seat (3) is connected to a mounting member (302), a rotating disk (303) is rotatably mounted in the mounting member (302), and standard members (304) are evenly spaced and arranged on the side of the rotating disk (303), support members (602) are symmetrically arranged above the second movable mounting seat (6), and clamping members (601) are symmetrically arranged between the support members (602), the outside micrometer (9) is clamped between the clamping members (601), and the outside micrometer (9) is placed above the support members (602).

2. A high-precision outside micrometer calibration device according to claim 1, characterized in that: The lower end of the upper fixed plate (2) is movably engaged with the first movable mounting seat (3), and a first transmission mechanism (301) with a screw structure is passed through the first movable mounting seat (3), and the first transmission mechanism (301) is embedded and installed in the upper fixed plate (2). A partitioning mesh plate (401) is fixedly engaged with the connecting side plate (4), and the partitioning mesh plate (401) is located between the temperature control mechanism (5) and the second movable mounting seat (6).

3. The high-precision outside micrometer calibration device according to claim 1, characterized in that: The bottom of the second movable mounting seat (6) is movably engaged in the lower support plate (8), and a second transmission mechanism (603) with a screw structure is passed through the second movable mounting seat (6), and the second transmission mechanism (603) is embedded and installed in the lower support plate (8), and the mounting surfaces of the second transmission mechanism (603) and the first transmission mechanism (301) are arranged in parallel, and the second transmission mechanism (603) and the first transmission mechanism (301) are arranged relatively vertically.

4. A high-precision outside micrometer calibration device according to claim 1, characterized in that: A conveying screw (605) is longitudinally rotatably provided in the second movable mounting seat (6), and the conveying screw (605) and the supporting member (602) are rotatably engaged via a threaded structure, and the supporting member (602) is longitudinally movably engaged with the second movable mounting seat (6).

5. The high-precision outside micrometer calibration device according to claim 1, characterized in that: A third transmission mechanism (604) is horizontally rotatably provided in the second movable mounting seat (6), and the third transmission mechanism (604) is meshed with the transmission screw (605).

6. The high-precision outside micrometer calibration device according to claim 1, characterized in that: A fourth transmission mechanism (606) having a double-headed reverse thread structure is installed through the bottom of the clamping member (601), and the fourth transmission mechanism (606) is embedded in the second movable mounting seat (6).

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