Straight steel ruler calibrating device

Abstract

The utility model discloses a steel ruler calibrating device, which belongs to the technical field of steel ruler calibration and comprises a box body, the box body is of a hollow shell structure, and a groove is formed in the side edge of the box body; the working plane is arranged on the box body, and the working plane is located in the groove; the auxiliary tool is arranged at one end of the working plane; the calibrating instrument body is arranged in the box body; and the moving mechanism is arranged in the hollow shell of the box body. The auxiliary tool is arranged to finely adjust the relative positions of the calibrated steel ruler and the standard ruler until the 0 scale marks of the calibrated steel ruler and the standard ruler are aligned, and then the position of the calibrating instrument body is adjusted through the moving mechanism to calibrate whether the scales of the standard ruler and the calibrated ruler at different point positions are within an allowable error range. A worker can independently complete calibration of the steel ruler. The technical problem that multi-person cooperation operation is needed is solved, and the technical effect of improving work efficiency and verification accuracy is achieved.

Description

Technical Field

[0001] The utility model relates to the field of steel straight ruler verification, in particular to a steel straight ruler verification device. Background Technique

[0002] As one of the most commonly used measuring tools in production and life, the accuracy and precision of a steel straight ruler have a direct impact on the measurement results. It is usually used to measure the length and size of parts and is widely used in fields such as machining, construction, and measurement. Therefore, the verification work of steel straight rulers is particularly important and is a key link to ensure the accuracy and reliability of measurements.

[0003] Traditional methods for verifying steel straight rulers mainly rely on manual visual reading, which has many limitations. With the progress of technology and the development of industry, the verification of steel straight rulers is completed through advanced technologies such as machine vision and image processing. In the prior art, by observing the imaging interface of the verification instrument and continuously adjusting the relative positions of the standard ruler and the steel straight ruler to be verified, the "0" scale line of the steel straight ruler to be verified is aligned with the "0" scale line of the standard ruler. This operation requires the cooperation of multiple people, which slows down the work efficiency and is difficult to ensure the verification accuracy of the steel straight ruler. Content of the Utility Model

[0004] The purpose of the utility model is to solve the technical problem in the prior art that the position of the verification instrument cannot be adjusted quickly, and a steel straight ruler verification device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A steel straight ruler verification device, comprising:

[0007] A box body, the box body is a hollow shell structure, a groove is opened on the side of the box body, and the groove is horizontally arranged;

[0008] A working plane, the working plane is arranged on the box body, the working plane is located in the groove, and the working plane is horizontally arranged along the opening direction of the groove;

[0009] An auxiliary tooling, the auxiliary tooling is arranged at one end of the working plane, and the auxiliary tooling is used for fine-tuning the positions of the standard ruler and the steel straight ruler to be verified;

[0010] A verification instrument body, the verification instrument body is arranged in the box body and is located above the groove, and the view-finding imaging direction of the verification instrument body is perpendicular to the working plane;

[0011] A moving mechanism, which is arranged inside the hollow housing of the box body. The moving mechanism extends into the groove, is connected to the calibrator body, moves along the opening direction of the groove, and is used to drive the calibrator body to perform moving detection in the groove.

[0012] Furthermore, the auxiliary tooling includes:

[0013] A first adjustment module, which is arranged at one end of the working plane and is used to adjust the position of the standard scale;

[0014] A second adjustment module, which is arranged on one side of the first adjustment module and is used to adjust the position of the steel straight ruler to be inspected;

[0015] Wherein, the first adjustment module and the second adjustment module are arranged staggeredly on the working plane.

[0016] Furthermore, the first adjustment module includes:

[0017] A first support seat, which is movably arranged on the working plane and is used to support the installation of components;

[0018] A first lead screw, which is arranged inside the first support seat and is rotationally connected to the first support seat;

[0019] A standard scale pusher, which is arranged inside the first support seat and is threadedly connected to the first lead screw. The standard scale pusher is a bent block structure, and the side surface of the standard scale pusher abuts against the end edge of the standard scale.

[0020] Furthermore, the second adjustment module includes:

[0021] A second support seat, which is arranged on the working plane and is located on one side of the first support seat;

[0022] A second lead screw, which is arranged inside the second support seat and is rotationally connected to the second support seat;

[0023] A pusher for the steel straight ruler to be inspected, which is movably arranged inside the second support seat and is threadedly connected to the second lead screw. The pusher for the steel straight ruler to be inspected is integrally in an L-shaped structure, and one end of the pusher for the steel straight ruler to be inspected abuts against the end edge of the steel straight ruler to be inspected.

[0024] Furthermore, the auxiliary tooling also includes two auxiliary rod groups, which are respectively arranged inside the first adjustment module and the second adjustment module.

[0025] Further, the moving mechanism includes:

[0026] A guide rail, which is arranged in the box body, and the inside of the guide rail is hollow;

[0027] A screw rod, which is arranged in the hollow part of the guide rail, and the screw rod is rotatably connected with the guide rail,

[0028] A motor, which is arranged at one end of the guide rail, and the output end of the motor penetrates through one end connected with the guide rail and is fixedly connected with the screw rod;

[0029] A movable assembly, which is movably arranged on the guide rail, and the movable assembly is in threaded connection with the screw rod, and the calibrator body is fixedly connected with the movable assembly.

[0030] Further, the movable assembly includes:

[0031] A sliding guide, which is arranged on the guide rail and is movably connected with the guide rail;

[0032] A connecting block, which is arranged in the hollow part of the guide rail, the connecting block is in threaded connection with the screw rod, and the connecting block is fixedly connected with the sliding guide;

[0033] A mounting bracket, which is arranged at the top of the sliding guide, and one end of the mounting bracket extends into the groove and is connected with the calibrator body.

[0034] Further, chutes are also formed on both sides of the guide rail, and clamping members adapted to the chutes are arranged on both sides of the sliding guide, and the clamping members can slide in the chutes.

[0035] Further, a partition board is also arranged on the working plane, and the partition board is inclined on the working plane.

[0036] Further, a reinforcing back plate is also arranged on the inner wall of the box body.

[0037] The beneficial effects of the present utility model are:

[0038] By setting an auxiliary tooling to finely adjust the relative position of the steel ruler to be calibrated and the standard ruler until the "0" scale lines of the two are aligned, and then adjusting the position of the calibrator body through the moving mechanism to check whether the scales of the standard ruler and the ruler to be calibrated at different points are within the allowable error range, the staff can independently complete the calibration work of the steel ruler. It solves the technical problem of requiring multiple people to cooperate in operation and achieves the technical effects of improving work efficiency and calibration accuracy. Description of the Drawings

[0039] Figure 1 This is a schematic structural diagram of a steel straightedge verification device provided in an embodiment of the present utility model;

[0040] Figure 2 This is a partial structural schematic diagram of a steel straightedge verification device provided in an embodiment of the present utility model Figure 1 ;

[0041] Figure 3 is Figure 2 an enlarged structural schematic diagram at position A in

[0042] Figure 4 This is a partial structural schematic diagram of a steel straightedge verification device provided in an embodiment of the present utility model Figure 2 ;

[0043] Figure 5 is Figure 4 an enlarged structural schematic diagram at position B in

[0044] The markings in the figure are as follows:

[0045] 1. Box body; 11. Groove; 12. Reinforcing back plate;

[0046] 2. Working plane; 21. Partition board;

[0047] 3. Auxiliary tooling; 31. First adjustment module; 311. First support seat; 312. First lead screw; 313. Standard ruler pushing frame; 32. Second adjustment module; 321. Second support seat; 322. Second lead screw; 323. Tested ruler pushing frame; 33. Auxiliary rod group;

[0048] 4. Verification instrument body;

[0049] 5. Moving mechanism; 51. Guide rail; 511. Slide groove; 512. Clamping part; 52. Screw; 53. Motor; 54. Moving component; 541. Sliding guide; 542. Connecting block; 543. Mounting frame. Specific implementation manners

[0050] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0051] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0054] Embodiment

[0055] Refer to Figures 1 - 5, a steel straightedge verification device, which is used to perform qualified detection on the device under test (such as the steel straightedge to be tested) according to a standard part (such as a standard ruler). Specifically, the verification device includes a box body 1, a working plane 2 arranged on the box body 1, an auxiliary tooling 3 arranged on the working plane 2, a verification instrument body 4 arranged in the box body 1, and a moving mechanism 5 arranged in the box body 1. Specifically, the box body 1 is a hollow shell structure, and a groove 11 penetrating through two side edges is opened on the box body 1, and the groove 11 is horizontally arranged on the box body 1. The working plane 2 is arranged on the box body 1, the working plane 2 is located in the groove 11, and the working plane 2 is horizontally arranged along the opening direction of the groove 11 for placing the steel straightedge to be tested and the standard ruler. Moreover, a partition plate 21 is further arranged on the working plane 2, the partition plate 21 is inclined on the working plane 2, and the included angle between the partition plate 21 and the working plane 2 is an acute angle to partition the space inside the box body 1 from the working plane 2, improve the space utilization rate, and protect the working plane 2. The auxiliary tooling 3 is fixedly arranged at one end of the working plane 2, and the auxiliary tooling 3 is used to finely adjust the relative positions of the standard ruler and the steel straightedge to be tested until their "0" scale lines are aligned with each other. The verification instrument body 4 is arranged in the box body 1 and is located above the groove 11. The viewing and imaging direction of the verification instrument body 4 is perpendicular to the working plane 2. The verification instrument body 4 is used to verify the steel straightedge to be tested. For example, the verification instrument body 4 can be an image-type steel straightedge verification instrument. The image-type steel straightedge verification instrument is based on the principle of image measurement, uses high-precision components such as grating rulers as benchmarks, and captures and measures the scale line spacing of the steel straightedge through the image system, so as to realize high-precision verification of the steel straightedge. The moving mechanism 5 is arranged inside the hollow shell of the box body 1 and extends into the groove 11. The moving mechanism 5 is fixedly connected to the verification instrument body 4. The moving mechanism 5 can move along the opening direction of the groove 11 to drive the verification instrument body 4 to move in the groove 11 to detect different points of the ruler to be tested and the standard ruler.

[0056] In this embodiment, when calibrating a steel straightedge, place the steel straightedge to be calibrated and the standard ruler flat on the working plane 2. Drive the calibrator body 4 to move above the end edge of the standard ruler through the moving mechanism 5, so that the "0" scale lines of the steel straightedge to be calibrated and the standard ruler are both within the visible range of the calibrator body 4. Then, the staff can observe the scale positions of the steel straightedge to be calibrated and the standard ruler displayed in the interface shown on the calibrator body 4. Next, use the auxiliary tooling 3 to finely adjust the relative positions of the steel straightedge to be calibrated and the standard ruler to accurately align the "0" scale lines of the standard ruler and the steel straightedge to be calibrated. At this time, adjust the position of the calibrator body 4 through the moving mechanism 5. The staff observes whether multiple points (such as the "0" scale line, "50" scale line, "100" scale line) on the steel straightedge to be calibrated and the standard ruler shown in the calibrator body 4 are aligned to calibrate whether the full-length error of the steel straightedge to be calibrated is within the qualified range. By setting the auxiliary tooling 3 to finely adjust the relative positions of the steel straightedge to be calibrated and the standard ruler until their "0" scale lines are aligned, and then adjusting the position of the calibrator body 4 through the moving mechanism 5 to check whether the scales of the standard ruler and the ruler to be calibrated at different points are within the allowable error range, the staff can independently complete the calibration work of the steel straightedge. This solves the technical problem of requiring multiple people to cooperate in operation and achieves the technical effects of improving work efficiency and calibration accuracy.

[0057] In some preferred embodiments, a protective shell is further sleeved outside the calibrator body 4, and the protective shell is fixedly connected to the support frame, which can effectively prevent dust from entering, protect the precision components inside the calibrator, and extend the service life of the device.

[0058] Please refer to Figures 1 - 3 As shown, in this embodiment, the auxiliary tooling 3 includes a first adjustment module 31 and a second adjustment module 32. The first adjustment module 31 is arranged at one end of the working plane 2 and is used to adjust the position of the standard ruler. The second adjustment module 32 is arranged on one side of the first adjustment module 31 and is used to adjust the position of the steel straightedge to be calibrated. Among them, the first adjustment module 31 and the second adjustment module 32 are arranged in a staggered manner on the working plane, so as to facilitate the staff to distinguish the two adjustment modules 31 and avoid confusion, thereby improving work efficiency and detection accuracy.

[0059] Specifically, the first adjustment module 31 includes a first support seat 311, a first screw rod 312 and a standard ruler push frame 313. The first support seat 311 is arranged on the working plane 2 to support the installation of parts. The first screw rod 312 is arranged in the first support seat 311, and both ends of the first screw rod 312 are rotatably connected to the first support seat 311, so that the first screw rod 312 can be rotated in the first support seat 311. The standard ruler push frame 313 is movably arranged in the first support seat 311, and the standard ruler push frame 313 is threadedly connected to the first screw rod 312, and the rotation of the first screw rod 312 can drive the standard ruler push frame 313 to move. Among them, the standard ruler push frame 313 is a block structure bent toward the working plane to reduce the gap with the working plane 2, and one end of the standard ruler push frame 313 is in contact with the end edge of the standard ruler. When the standard ruler push frame 313 is moved, the standard ruler can be moved for fine adjustment.

[0060] The second adjustment module 32 includes a second support seat 321, a second screw rod 322 and a ruler push frame 323. The second support seat 321 is arranged on the working plane and is located on one side of the first support seat 311, that is, the second support seat 321 has the same function as the first support seat 311 and is staggered with the first support seat 311. The second screw rod 322 is arranged in the second support seat 321, and both ends of the second screw rod 322 are rotatably connected to the second support seat 321, so that the second screw rod 322 can rotate in the second support seat 321. The ruler push frame 323 is movably arranged in the second support seat 321, and the ruler push frame 323 is threadedly connected to the second screw rod 322. Rotating the second screw rod 322 can drive the ruler push frame 323 to move. The inspected ruler pushing frame 323 is an L-shaped structure as a whole, that is, the inspected ruler pushing frame 323 is composed of a connecting block and an abutting block. The length of the connecting block is greater than the length of the standard ruler pushing frame 313 to prevent the inspected ruler pushing frame 323 from colliding with the standard ruler pushing frame 313 when moving. One end of the inspected ruler pushing frame 323 abuts against the end edge of the inspected steel ruler. When the inspected ruler pushing frame 323 is moved, the inspected steel ruler can be driven to move.

[0061] The auxiliary tooling 3 also includes two auxiliary rod groups 33, which are respectively arranged in the first adjustment module 31 and the second adjustment module 32, that is, the two auxiliary rod groups respectively pass through the standard ruler pushing frame 313 and the inspected ruler pushing frame 323, and are respectively movably connected to the standard ruler pushing frame 313 and the inspected ruler pushing frame 323 to achieve a further supporting effect, so that the standard ruler pushing frame 313 and the inspected ruler pushing frame 323 can move smoothly.

[0062] Please refer to Figures 4 - 5 As shown, in this embodiment, the moving mechanism 5 includes a guide rail 51, a screw rod 52 disposed within the guide rail 51, a motor 53 connected to the screw rod 52, and a movable assembly 54 disposed on the guide rail 51. Specifically, the guide rail 51 is fixedly disposed at one end of the box body 1 close to the working plane 2, and the interior of the guide rail 51 is hollow. The screw rod 52 is disposed in the hollow of the guide rail 51, and the screw rod 52 is rotatably connected to the guide rail 51, that is, the screw rod 52 can rotate within the guide rail 51. The motor 53 is fixedly disposed at one end of the guide rail 51, and the output end of the motor 53 penetrates through one end connected to the guide rail 51 and is fixedly connected to the screw rod 52, that is, the output end of the motor 53 (such as the power transmission part) is located in the hollow of the guide rail 51, so that the motor 53 can directly drive the screw rod 52 to rotate. The movable assembly 54 is movably disposed on the guide rail 51, and the movable assembly 54 is threadedly connected to the screw rod 52. The calibrator body 4 is fixedly connected to the movable assembly 54. By rotating the screw rod 52, the movable assembly 54 can be moved along the path of the guide rail 51, driving the calibrator body 4 to move perpendicular to the working plane 2. Among them, the motor 53 can be a reversible motor. For example, a reversible motor can operate in both the forward and reverse directions, causing the output end of the reversible motor to rotate in the forward and reverse directions, thereby driving the screw rod 52 to rotate in two directions, enabling the movable assembly 54 threadedly connected to the screw rod 52 to move bidirectionally on the guide rail 51, and further enabling the calibrator body 4 to move to any position along the guide rail 51.

[0063] In this embodiment, the movable component 54 includes a sliding guide 541, a connecting block 542, and a mounting bracket 543. Specifically, the sliding guide 541 is disposed on the guide rail 51 and is movably connected to the guide rail 51. That is, the sliding guide 541 is an annular sliding sleeve structure that is sleeved on the guide rail 51 and can slide on the guide rail 51. The connecting block 542 is disposed in the hollow portion within the guide rail 51. A first threaded hole is provided on the connecting block 542. The connecting block 542 is threadedly connected to the screw rod 52 through the first threaded hole. Rotating the screw rod 52 can drive the connecting block 542 to move within the hollow range of the guide rail 51. The connecting block 542 is fixedly connected to the sliding guide 541, so that the sliding guide 541 can move synchronously with the connecting block 542. The mounting bracket 543 is fixedly disposed at the top end of the sliding guide 541, so that the sliding guide 541 can drive the mounting bracket 543 to move. One end of the mounting bracket 543 extends into the groove 11 and is connected to the calibrator body 4. That is, the mounting bracket 543 is an inverted L-shaped structure. The calibrator body 4 is fixedly connected to the cross beam of the mounting bracket 543 extending into the groove 11, so that the calibrator body 4 is located above the groove 11 and can drive the calibrator body 4 to move.

[0064] In some preferred embodiments, in order to make the calibrator body 4 move more stably during movement, sliding grooves 511 are further opened on both sides of the guide rail 51. The sliding grooves 511 are C-shaped sliding grooves 511. Clamping members 512 adapted to the sliding grooves 511 are fixedly disposed on both sides of the movable component 54. The clamping members 512 can slide in the sliding grooves 511, so that the movable component 54 has more support points during sliding, thereby enabling the calibrator body 4 to move more smoothly and stably.

[0065] In some preferred embodiments, in order to enhance the structural stability of the box body 1, a reinforcing back plate 12 is further provided on the inner wall of the box body 1 to improve the compression resistance and impact resistance of the box body 1.

[0066] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A steel straightedge verification device, characterized in that, Including: A box body (1), the box body (1) is a hollow shell structure, a groove (11) is provided on the side of the box body (1), and the groove (11) is horizontally arranged; A working plane (2), the working plane (2) is arranged on the box body (1), the working plane (2) is located in the groove (11), and the working plane (2) is horizontally arranged along the opening direction of the groove (11); An auxiliary tooling (3), the auxiliary tooling (3) is arranged at one end of the working plane (2), and the auxiliary tooling (3) is used for finely adjusting the positions of a standard ruler and a steel ruler to be inspected; An instrument body (4) for verification, the instrument body (4) for verification is arranged in the box body (1) and above the groove (11), and the view imaging direction of the instrument body (4) for verification is perpendicular to the working plane (2); A moving mechanism (5), the moving mechanism (5) is arranged inside the hollow shell of the box body (1), the moving mechanism (5) extends into the groove (11), the moving mechanism (5) is connected to the instrument body (4) for verification, the moving mechanism (5) moves along the opening direction of the groove (11), and the moving mechanism (5) is used to drive the instrument body (4) for verification to move and detect in the groove (11).

2. The steel straightedge verification device according to claim 1, characterized in that, The auxiliary tooling (3) includes: A first adjustment module (31), the first adjustment module (31) is arranged at one end of the working plane (2) and is used for adjusting the position of the standard ruler; A second adjustment module (32), the second adjustment module (32) is arranged on one side of the first adjustment module (31) and is used for adjusting the position of the steel ruler to be inspected; Wherein, the first adjustment module (31) and the second adjustment module (32) are arranged in a staggered manner on the working plane.

3. The steel straightedge verification device according to claim 2, characterized in that, The first adjustment module (31) includes: A first support seat (311), the first support seat (311) is movably arranged on the working plane (2) and is used for supporting the installation of components; A first lead screw (312), the first lead screw (312) is arranged in the first support seat (311), and the first lead screw (312) is rotatably connected to the first support seat (311); A standard ruler pusher (313), the standard ruler pusher (313) is arranged in the first support seat (311), and the standard ruler pusher (313) is threadedly connected to the first lead screw (312), the standard ruler pusher (313) is a bent block structure, and the side surface of the standard ruler pusher (313) abuts against the end edge of the standard ruler.

4. A steel straightedge verification device according to claim 3, characterized in that, The second adjustment module (32) includes: A second support seat (321), the second support seat (321) is arranged on the working plane and on one side of the first support seat (311); A second lead screw (322), the second lead screw (322) is arranged in the second support seat (321), and the second lead screw (322) is rotatably connected to the second support seat (321); The steel ruler to be inspected push frame (323) is movably arranged in the second support seat (321), and the steel ruler to be inspected push frame is threadedly connected to the second lead screw (322). The steel ruler to be inspected push frame (323) is integrally in an L-shaped structure, and one end of the steel ruler to be inspected push frame (323) abuts against the edge of the steel ruler to be inspected.

5. The steel straightedge verification device according to claim 2, characterized in that, The auxiliary tooling (3) further includes two auxiliary rod groups (33), and the two auxiliary rod groups (33) are respectively arranged in the first adjustment module (31) and the second adjustment module (32).

6. The verification device for a steel straightedge according to claim 1, wherein The moving mechanism (5) includes: A guide rail (51), the guide rail (51) is arranged in the box body (1), and the inside of the guide rail (51) is hollow; A screw rod (52), the screw rod (52) is arranged in the hollow part inside the guide rail (51), and the screw rod (52) is rotatably connected to the guide rail (51). A motor (53), the motor (53) is arranged at one end of the guide rail (51), and the output end of the motor (53) penetrates through one end connected to the guide rail (51) and is fixedly connected to the screw rod (52). A movable component (54), the movable component (54) is movably arranged on the guide rail (51), and the movable component (54) is threadedly connected to the screw rod (52). The calibrator body (4) is fixedly connected to the movable component (54).

7. The steel straightedge verification device according to claim 6, characterized in that, The movable component (54) includes: A sliding guide (541), the sliding guide (541) is arranged on the guide rail (51) and is movably connected to the guide rail (51). A connecting block (542), the connecting block (542) is arranged in the hollow part inside the guide rail (51), the connecting block (542) is threadedly connected to the screw rod (52), and the connecting block (542) is fixedly connected to the sliding guide (541). A mounting bracket (543), the mounting bracket (543) is arranged at the top of the sliding guide (541), and one end of the mounting bracket (543) extends into the groove (11) and is connected to the calibrator body (4).

8. A steel straightedge verification device according to claim 7, characterized in that, Chutes (511) are further opened on both sides of the guide rail (51), and clamping members (512) adapted to the chutes (511) are arranged on both sides of the sliding guide (541), and the clamping members (512) can slide in the chutes (511).

9. The steel straightedge verification device according to claim 1, characterized in that, A partition plate (21) is further arranged on the working plane (2), and the partition plate (21) is inclined on the working plane (2).

10. A steel straightedge verification device according to claim 1, characterized in that, A reinforcing back plate (12) is further arranged on the inner wall of the box body (1).

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