Measuring device

By designing a measuring device that combines a laser sensor and a grating ruler, the problems of large human error and low efficiency in the length measurement of aluminum plates were solved, realizing efficient and automated measurement of aluminum plates and improving measurement accuracy and efficiency.

CN223856398UActive Publication Date: 2026-01-30BEIJING WEISHENG COMPOSITES MATERIALS CO LTD
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Patent Information

Application Number
CN202520513057.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-01-30
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In existing technologies, the length measurement of aluminum plate products relies on manual operation, which has problems such as large errors, low efficiency and cumbersome process.

Method used

Design a measuring device that combines a laser sensor and a grating ruler. The measuring component is driven by a drive assembly to move on a base, thereby achieving automated measurement of the flatness, straightness, and length of an aluminum plate and reducing manual intervention.

Benefits of technology

It improves measurement accuracy, reduces labor costs, enhances measurement efficiency, and enables highly efficient automated measurement of aluminum plate products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a measuring device, comprising a base, a driving assembly and a measuring assembly, the base is provided with a measuring position, the measuring position is used for placing a product to be measured, the driving assembly and the measuring assembly are arranged on the base, the driving assembly is provided with a moving end, the measuring assembly is provided with a first measuring end and a second measuring end, and the moving end is provided with a moving end. The first measuring end and the second measuring end are both arranged on the moving end so that the driving assembly can drive the first measuring end and the second measuring end to move in the first direction, and the first measuring end faces the measuring position so as to measure the surface of a product to be measured. The measuring device can measure the flatness, the straightness and the length of a product at the same time, and compared with manual measurement in the related technology, the measuring device is small in measuring error, can reduce the labor input cost, and improves the measuring efficiency.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detection equipment, specifically related to a measuring device. BACKGROUND

[0002] In the related art, the length of the aluminum plate product is measured by manually measuring the fixed length of the product through the scale line of the steel ruler, the manual error is large, the manual operation mode is cumbersome, cannot be quantified, and the efficiency is low. CONTENT

[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.

[0004] Therefore, the embodiment of the utility model provides a measuring device which can measure the flatness, straightness and length of the product simultaneously, has smaller measurement error compared with manual measurement in the related art, can reduce the manual input cost, and improves the measurement efficiency.

[0005] The measuring device provided by the embodiment of the utility model comprises a base, a driving assembly and a measuring assembly, the base is provided with a measuring position, the measuring position is used for placing a product to be measured, the driving assembly and the measuring assembly are arranged on the base, the driving assembly has a moving end, the measuring assembly has a first measuring end and a second measuring end, the first measuring end and the second measuring end are arranged on the moving end so that the driving assembly drives the first measuring end and the second measuring end to move in a first direction, and the first measuring end faces the measuring position to measure the surface of the product to be measured.

[0006] The measuring device provided by the embodiment of the utility model can measure the flatness, straightness and length of the product simultaneously, has smaller measurement error compared with manual measurement in the related art, can reduce the manual input cost, and improves the measurement efficiency.

[0007] In some embodiments, the measuring assembly comprises a laser sensor and a grating ruler, the laser sensor is arranged on the moving end, the laser sensor has a probe, the probe forms the first measuring end, the grating ruler comprises a ruler and a reading head, the ruler is arranged on the base, the ruler extends along the first direction, and the reading head is arranged on the moving end, the reading head forms the second measuring end of the measuring assembly.

[0008] In some embodiments, the laser sensor has two first laser sensors and a second laser sensor, the probe of the first laser sensor extends along a second direction, the probe of the second laser sensor extends along a third direction, and the first direction is orthogonal to the second direction and the third direction.

[0009] In some embodiments, the probe of the first laser sensor and the probe of the second laser sensor are opposite in the second direction.

[0010] In some embodiments, the measuring assembly further comprises a support, the support being arranged on the moving end, and the laser sensor being arranged on the support.

[0011] In some embodiments, the measuring device further comprises a display and an industrial computer, the display and the industrial computer being arranged on the support, the display being connected to the grating ruler to display measurement data of the grating ruler, and the display, the laser sensor and the driving assembly being electrically connected to the industrial computer.

[0012] In some embodiments, the measuring device further comprises a limiting assembly, the limiting assembly comprising a first limiting sensor, a second limiting sensor and a blocking piece, the first limiting sensor and the second limiting sensor being arranged at two ends of the driving assembly in the first direction respectively, the first limiting sensor and the second limiting sensor being located on two sides of the measuring position, the blocking piece being arranged on the moving end and located between the first limiting sensor and the second limiting sensor, and the first limiting sensor and the second limiting sensor being electrically connected to the driving assembly.

[0013] In some embodiments, the base comprises a platform and a placement plate, the placement plate comprising a support plate, a first blocking plate and a second blocking plate, the support plate, the driving assembly and the measuring assembly being arranged on the platform, the first blocking plate being arranged at one end of the support plate in the first direction, the second blocking plate being arranged on a side of the support plate away from the driving assembly in a second direction, the second direction being perpendicular to the first direction, the support plate and the second blocking plate extending along the first direction, and the support plate, the first blocking plate and the second blocking plate defining the measuring position.

[0014] In some embodiments, the driving assembly comprises a guide rail, a mounting seat and a driving member, the guide rail being arranged on the base and extending along the first direction, the mounting seat being movably arranged on the guide rail, and the driving member being connected to the mounting seat, the mounting seat forming the moving end of the driving assembly.

[0015] In some embodiments, the driving member comprises a driving motor, a lead screw and a nut seat, the driving motor being arranged at one end of the guide rail, the lead screw being rotatably arranged on the guide rail, the driving motor being connected to the lead screw, the nut seat being fitted and arranged on the lead screw, and the nut seat being connected to the mounting seat. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of a measuring device of an embodiment of the utility model;

[0017] Figure 2 is a structural schematic view of a measuring assembly and a driving assembly of an embodiment of the utility model;

[0018] Figure 3 is a structural schematic view of a measuring device of an embodiment of the utility model;

[0019] Reference signs:

[0020] Measuring device 100;

[0021] Base 1, measuring position 11, platform 12, storage plate 13, support plate 131, first baffle 132, second baffle 133, support frame 14;

[0022] Driving assembly 2, guide rail 21, mounting seat 22, driving part 23, driving motor 231, lead screw 232, mounting seat 24;

[0023] Measuring assembly 3, first measuring end 31, second measuring end 32, laser sensor 33, first laser sensor 33a, second laser sensor 33b, grating ruler 34, scale 341, reading head 342;

[0024] Support part 4, first support column 41, second support column 42, first connecting column 43, second connecting column 44;

[0025] Display 5, industrial computer 6, limiting assembly 7, first limiting sensor 71, second limiting sensor 72, baffle 73;

[0026] Product 200. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0028] The measuring device 100 of the embodiment of the utility model is described in detail below with reference to the drawings. Figures 1 to 3

[0029] The measuring device 100 of the embodiment of the utility model comprises base 1, driving assembly 2 and measuring assembly 3, and the driving assembly 2 and the measuring assembly 3 are arranged on the base 1.

[0030] The base 1 is provided with measuring position 11, and the measuring position 11 is used for placing product 200 to be measured. The driving assembly 2 has a moving end, and the moving end of the driving assembly 2 can move in the first direction (for example Figure 1 ​The measurement assembly 3 has a first measurement end 31 and a second measurement end 32, both of which are arranged on the moving end so as to be driven by the driving assembly 2 to move in the first direction, and the first measurement end 31 is directed to the measurement position 11 to measure the surface of the product 200 to be measured.

[0031] In use, the measurement device 100 of the embodiment of the present application places the product to be measured on the measurement position 11, and the driving assembly 2 drives the measurement assembly 3 to move in the first direction, i.e. drives the first measurement end 31 and the second measurement end 32 to move in the first direction, so that the first measurement end 31 can measure the surface of the corresponding product 200, thereby detecting the flatness and straightness of the surface of the product 200, and the second measurement end 32 can move parallel to the product, thereby measuring the size of the product in the first direction.

[0032] As shown in Figure 1 , the product 200 is a long strip-shaped plate, and in the figure, the size of the plate in the first direction is its length, and the second measurement end 32 measures the length of the plate, and the measurement device 100 of the embodiment of the present application can simultaneously measure the flatness, straightness and length of the plate.

[0033] Therefore, the measurement device 100 of the embodiment of the present application can simultaneously measure the flatness, straightness and size in the first direction of the product 200, and compared with the manual measurement in the related art, the measurement error is smaller, the labor cost can be reduced, and the measurement efficiency is improved.

[0034] In order to make the scheme of the present application easier to understand, the first direction is the same as the left-right direction, the second direction is the same as the front-back direction, and the third direction is the same as the up-down direction, which are taken as examples for description, wherein the left-right direction is as shown in Figure 1 and Figure 3 , the front-back direction is as shown in Figure 1 and Figure 3 , and the up-down direction is as shown in Figure 1 .

[0035] As shown in Figure 1 , the base 1 includes a support frame 14, a platform 12 and a storage plate 13.

[0036] The support frame 14 is a rectangular frame welded by square tubes, the surface of the support frame 14 is plastic-sprayed, the whole is rigid and stable, and has good supportability.

[0037] The platform 12 is installed on the support frame 14, and the platform 12 is a marble platform 12 and has good machining precision.

[0038] The product placing plate 13 comprises a support plate 131, a first baffle 132 and a second baffle 133. The support plate 131, the driving assembly 2 and the measuring assembly 3 are all arranged on the platform 12. The first baffle 132 is arranged at one end (left end) of the support plate 131 in the first direction, and the second baffle 133 is arranged at a side (front side) of the support plate 131 away from the driving assembly 2 in a second direction perpendicular to the first direction. The support plate 131 and the second baffle 133 both extend along the first direction, and the support plate 131, the first baffle 132 and the second baffle 133 define a measuring position 11. The product to be measured 200 is placed on the measuring position 11, the support plate 131 supports the product to be measured, the first baffle 132 defines the left end limit position of the product to be measured, and the second baffle 133 defines the front side limit position of the product to be measured. Meanwhile, the first baffle 132 and the second baffle 133 also facilitate positioning of the product. When the left end of the product to be measured abuts against the first baffle 132 and the front side abuts against the second baffle 133, the product to be measured is installed on the measuring position 11.

[0039] The driving assembly 2 comprises a guide rail 21, a mounting seat 22 and a driving member 23. The guide rail 21 is arranged on the base 1 and extends along the first direction. The mounting seat 22 is movably arranged on the guide rail 21, and the driving member 23 is connected with the mounting seat 22. The mounting seat 22 forms a moving end of the driving assembly 2. The measuring assembly 3 has a first measuring end 31 and a second measuring end 32. Both the first measuring end 31 and the second measuring end 32 are arranged on the moving end so as to be moved along the first direction by the driving assembly 2. The first measuring end 31 faces the measuring position 11 to measure the surface of the product to be measured.

[0040] The driving member 23 drives the mounting seat 22 to move along the first direction. The driving assembly 2 guides and limits the movement of the mounting seat 22 through cooperation of the guide rail 21 and the mounting seat 22, so as to ensure smooth and accurate movement of the mounting seat 22 (moving end) along the first direction, thereby ensuring smooth and accurate movement of the first measuring end 31 and the second measuring end 32 along the first direction, and further ensuring the measuring accuracy of the first measuring end 31 and the second measuring end 32.

[0041] Specifically, the lower side of the mounting seat 22 is provided with four sliding blocks, which are connected with the guide rail 21 in cooperation.

[0042] Specifically, the driving member 23 comprises a driving motor 231, a lead screw 232 and a nut seat. The driving motor 231 is arranged at one end of the guide rail 21, such as Figure 1 and Figure 3As shown, the driving motor 231 is arranged at the left end of the guide rail 21, the screw rod 232 is rotatably arranged on the guide rail 21, the driving motor 231 is connected with the screw rod 232, the screw rod 232 is cooperatively arranged with a nut seat, and the nut seat is connected with the mounting seat 22. The driving motor 231 drives the screw rod 232 to rotate reversely, thereby driving the nut seat and the mounting seat 22 to reciprocate left and right, and then driving the first measuring end 31 and the second measuring end 32 to reciprocate left and right.

[0043] Further, the measuring assembly 3 comprises a laser sensor 33 and a grating ruler 34. The laser sensor 33 is arranged on the moving end, and the laser sensor 33 has a probe, the probe forms the first measuring end 31. The grating ruler 34 comprises a scale 341 and a reading head 342. The scale 341 is arranged on the base 1, and specifically, the scale 341 is arranged on the rear side of the guide rail 21. The scale 341 extends along the first direction. The reading head 342 is arranged on the moving end, and the reading head 342 forms the second measuring end 32 of the measuring assembly 3.

[0044] When the driving assembly 2 drives the moving end to move in the first direction, for the laser sensor 33, the laser sensor 33 measures the position and displacement data of the surface of the product by non-contact measurement, so that the corresponding flatness and straightness data can be obtained. For the grating ruler 34, the detection of the size in the first direction is determined by capturing the instantaneous over-limit value. When the reading head 342 moves from left to right to reach the rightmost end of the product, the laser sensor 33 detects the position, and the grating ruler 34 quickly captures the over-limit value measured by the reading head 342 at the position, that is, the value measured by the grating ruler 34 at the position is the size of the product in the first direction.

[0045] Further, the laser sensor 33 has two, which are respectively a first laser sensor 33a and a second laser sensor 33b. The probe of the first laser sensor 33a extends along the second direction, and the probe of the second laser sensor 33b extends along the third direction. The first direction is orthogonal to the second direction and the third direction. The probes of the first laser sensor 33a and the second laser sensor 33b have different directions, and the measured surfaces of the product are different. For a square product, for example, a rectangular aluminum plate in Figure 1 and Figure 3 The first laser sensor 33a and the second laser sensor 33b can measure the rear side and the upper side of the rectangular aluminum plate respectively, so that the flatness and straightness data of the two surfaces of the product can be obtained, thereby improving the measurement efficiency of the measuring device 100 of the product 200 in the embodiment of the utility model.

[0046] In some embodiments, the probe of the first laser sensor 33a and the probe of the second laser sensor 33b are opposite in the second direction. The measuring point of the first laser sensor 33a and the point of the second laser sensor 33b are located on the same cross section, in other words, during the movement of the mobile end driven by the driving assembly 2, the data measured by the first laser sensor 33a and the data measured by the second laser sensor 33b are data of two sides of the same position of the product in the first direction, the two data correspond to each other, which is beneficial for subsequent comparison and analysis of the flatness of the product.

[0047] In some embodiments, the measuring assembly 3 further comprises a support 4, the support 4 is arranged on the mobile end, and the laser sensor 33 is arranged on the support 4.

[0048] Specifically, as shown in Figure 1 and Figure 2 , the support 4 comprises a first support column 41, a second support column 42, a first connecting column 43 and a second connecting column 44, the first support column 41 is arranged on the mounting seat 22, the first support column 41 extends in the up-down direction, the second support column 42 is arranged at the middle part of the first support column 41, the second support column 42 extends in the front-rear direction, the first connecting column 43 is arranged at the lower end of the first support column 41, the front end of the first connecting column 43 is provided with the first laser sensor 33a, and the second connecting column 44 is arranged at the front end of the second support column 42, and the lower end of the second connecting column 44 is provided with the second laser sensor 33b.

[0049] In some embodiments, the measuring device 100 further comprises a display 5 and an industrial computer 6, the display 5 and the industrial computer 6 are arranged on the support 4. Specifically, as shown in Figure 2 , the industrial computer 6 is arranged at the upper end of the first support column 41.

[0050] The display 5 is connected with the grating ruler 34 to display the measurement data of the grating ruler 34, the display 5, the laser sensor 33 and the driving motor 231 of the driving assembly 2 are all electrically connected with the industrial computer 6. The industrial computer 6 receives the data signals of the laser sensor 33 and the grating ruler 34, and the industrial computer 6 controls the forward and reverse rotation and start and stop of the driving motor 231 of the driving assembly 2.

[0051] In some embodiments, the measuring device 100 further comprises a limiting assembly 7, the limiting assembly 7 comprises a first limiting sensor 71, a second limiting sensor 72 and a baffle 73, the first limiting sensor 71 and the second limiting sensor 72 are respectively arranged at the two ends of the driving assembly 2 in the first direction, the first limiting sensor 71 and the second limiting sensor 72 are located on the two sides of the measuring position 11, the baffle 73 is arranged on the mobile end, the baffle 73 is located between the first limiting sensor 71 and the second limiting sensor 72, and the first limiting sensor 71 and the second limiting sensor 72 are both electrically connected with the driving assembly 2.

[0052] Specifically, the first limit sensor 71 is located at the left end of the guide rail 21, the second limit sensor 72 is located at the right end of the guide rail 21, the first limit sensor 71 and the second limit sensor 72 are located at the front side of the guide rail 21, and the baffle 73 is arranged at the front side of the mounting seat 22. The first limit sensor 71 and the second limit sensor 72 are electrically connected with the driving motor 231 through the industrial computer 6.

[0053] The first limit sensor 71 and the second limit sensor 72 form the limit position of the left and right movement of the mounting seat 22 (the moving end). When the mounting seat 22 moves from right to left, the baffle 73 moves with it, when the baffle 73 abuts against the first limit sensor 71, the first limit sensor 71 transmits a position signal to the industrial computer 6, and the industrial computer 6 controls the driving motor 231 to stop, that is, the mounting seat 22 stops moving to the left. When the mounting seat 22 moves from left to right, when the baffle 73 abuts against the second limit sensor 72, the industrial computer 6 controls the driving motor 231 to stop, so that the mounting seat 22 stops moving to the right. Therefore, the safety of the moving end and the measuring assembly 3 moving in the first direction can be improved, thereby improving the safety and reliability of the use of the driving assembly 2 and the measuring assembly 3.

[0054] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0055] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0056] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0058] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0059] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A measuring device (100), characterized in that The utility model relates to a kind of laser sensor and grating ruler for measuring the surface of product, comprising: Base (1), the base (1) is provided with measuring site (11), the measuring site (11) is used to place product (200) to be measured;And provided on base (1): Drive assembly (2), the drive assembly (2) has mobile end; Measuring assembly (3), the measuring assembly (3) has first measuring end (31) and second measuring end (32), the first measuring end (31) and the second measuring end (32) are both provided on the mobile end so that the drive assembly (2) drives the first measuring end (31) and the second measuring end (32) move in first direction, the first measuring end (31) is towards the measuring site (11) to measure the surface of product to be measured.

2. The measuring device (100) according to claim 1, characterized in that The measuring assembly (3) includes laser sensor (33) and grating ruler (34), the laser sensor (33) is provided on the mobile end, the laser sensor (33) has probe, the probe forms the first measuring end (31), the grating ruler (34) includes scale (341) and reading head (342), the scale (341) is provided on the base (1), the scale (341) extends along the first direction, the reading head (342) is provided on the mobile end, and the reading head (342) forms the second measuring end (32) of the measuring assembly (3).

3. The measuring device (100) according to claim 2, characterized in that The laser sensor (33) has two and is first laser sensor (33a) and second laser sensor (33b) respectively, the direction of the probe of the first laser sensor (33a) extends along second direction, the direction of the probe of the second laser sensor (33b) extends along third direction, and the first direction is orthogonal with the second direction and the third direction.

4. The measuring device (100) according to claim 3, characterized in that The probe of the first laser sensor (33a) and the probe of the second laser sensor (33b) are opposite in the second direction.

5. The measuring device (100) according to claim 2, characterized in that The measuring assembly (3) further includes support (4), the support (4) is provided on the mobile end, and the laser sensor (33) is provided on the support (4).

6. The measuring device (100) according to claim 5, characterized in that Further comprising display (5) and industrial computer (6), the display (5) and the industrial computer (6) are provided on the support (4), the display (5) is connected with the grating ruler (34) to display the measurement data of the grating ruler (34), and the display (5), the laser sensor (33) and the drive assembly (2) are electrically connected with the industrial computer (6).

7. The measuring device (100) according to claim 1, characterized in that Further include limit component (7), the limit component (7) includes first limit sensor (71), second limit sensor (72) and baffle (73), the first limit sensor (71) and the second limit sensor (72) are respectively arranged at the both ends of the drive assembly (2) in the first direction, the first limit sensor (71) and the second limit sensor (72) are located on both sides of the measurement site (11), the baffle (73) is arranged on the moving end, the baffle (73) is located between the first limit sensor (71) and the second limit sensor (72), the first limit sensor (71) and the second limit sensor (72) are electrically connected with the drive assembly (2).

8. The measuring device (100) according to claim 1, characterized in that The base (1) includes a platform (12) and a storage plate (13), the storage plate (13) includes a support plate (131), a first baffle (132) and a second baffle (133), the support plate (131), the drive assembly (2) and the measurement assembly (3) are arranged on the platform (12), the first baffle (132) is arranged at one end of the support plate (131) in the first direction, the second baffle (133) is arranged on the side of the support plate (131) away from the drive assembly (2) in the second direction, the second direction is perpendicular to the first direction, the support plate (131) and the second baffle (133) extend along the first direction, the support plate (131), the first baffle (132) and the second baffle (133) define the measurement site (11).

9. The measuring device (100) according to claim 1, characterized in that The drive assembly (2) includes a guide rail (21), a mounting seat (22) and a drive member (23), the guide rail (21) is arranged on the base (1), the guide rail (21) extends along the first direction, the mounting seat (22) is movably arranged on the guide rail (21), the drive member (23) is connected with the mounting seat (22), and the mounting seat (22) forms the moving end of the drive assembly (2).

10. The measuring device (100) according to claim 9, characterized in that The drive member (23) includes a drive motor (231), a lead screw (232) and a nut seat, the drive motor (231) is arranged at one end of the guide rail (21), the lead screw (232) is rotatably arranged on the guide rail (21), the drive motor (231) is connected with the lead screw (232), and the lead screw (232) is cooperatively mounted with the nut seat, and the nut seat is connected with the mounting seat (22).