Detection tool for detecting space dimension

By integrating multiple bonding reference surfaces and inclination sensors in the detection device, the problems of low accuracy and poor universality in the existing technology are solved, and accurate and efficient detection of the spatial dimension relationship of parts is achieved, which is suitable for Various parts of the automotive industry.

CN222144113UActive Publication Date: 2024-12-10NIO TECH ANHUI CO LTD
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Patent Information

Application Number
CN202420394103.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2024-12-10
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

The prior art has problems of low accuracy, poor stability and low compatibility when detecting space dimensions, especially in the automotive industry, it is difficult to achieve accurate and efficient spatial parallel dimension detection of parts.

Method used

A test tool including a tool body and an inclination sensor is designed. The tool body is equipped with multiple bonding reference surfaces to match the profile characteristics of the measured element. The inclination sensor is used to measure the relative position of the bonding reference surface and the measured element. Relationship, the precise detection of space dimensions is achieved through multiple bonding reference planes and alignment lines, improving the universality of the detection.

Benefits of technology

Accurate and efficient detection of the spatial dimension relationship between multiple measured elements is achieved, avoiding limitations due to relative distance and attitude, and improving the universality and accuracy of detection.

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Abstract

The utility model relates to the technical field of detection devices, particularly provides a detection tool for detecting spatial dimensions, and aims to solve the problems that the existing spatial dimension detection is not easy to accurately and efficiently detect and the universality of the detection tool is low. In order to achieve the purpose, the detection tool for detecting the spatial size comprises a tool main body and a tilt angle sensor, the tool main body is provided with at least two fitting reference surfaces, and each fitting reference surface is matched with a profile feature of a corresponding measured element; the relative position relationship among all the fitting reference surfaces corresponds to the relative position relationship of all the corresponding measured elements in a design state; and the tilt angle sensor is used for measuring when each fitting reference surface is fitted with the profile feature of the corresponding measured element. The detection tool provided by the utility model can realize accurate and efficient detection of spatial dimensions and has high versatility.
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Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and specifically provides a detection tool for detecting space dimensions. Background Art

[0002] In the automotive-related industry, as user perception becomes higher and higher, in addition to paying attention to the matching relationship of local interfaces, users are also gradually paying attention to the spatial dimensions between two components within the user's perspective, such as the spatial parallel dimensions of two components.

[0003] At present, there are the following problems in the detection of space dimensions:

[0004] When the relative relationship of mating parts is collected by surface difference gauges and gap gauges, the measurement range is usually within 10mm due to the relative distance of the parts in space. The temporary use of auxiliary inspections such as visual inspection and mobile phone levels on site has low accuracy, stability and professionalism. In addition, the development of special tooling and inspection fixtures for special vehicles has the problem of low compatibility.

[0005] In view of the problems existing in the above-mentioned prior art, those skilled in the art are in urgent need of a gauge for detecting space dimensions, so as to achieve accurate and efficient detection of space dimensions and improve the versatility of the gauge. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, to solve the problem that the existing spatial dimension detection is difficult to detect accurately and efficiently and the universality of the detection tool is low.

[0007] In a first aspect, the utility model provides a gauge for detecting spatial dimensions, comprising a tooling body and an inclination sensor; the tooling body is provided with at least two fitting reference surfaces, each of the fitting reference surfaces matches the profile features of the corresponding measured element; the relative positional relationship between all the fitting reference surfaces corresponds to the relative positional relationship of all the corresponding measured elements in the design state; the inclination sensor is used to perform measurements when each of the fitting reference surfaces fits the profile features of the corresponding measured element.

[0008] When the above technical solution is adopted, the multiple fitting reference surfaces of the tooling body of the utility model correspond to the profile features of multiple measured elements in the design state, where the design state can be a parallel state or a vertical state or other design states, and the inclination sensor can use each fitting reference surface as a reference to perform measurement when each fitting reference surface is fitted with the profile feature of the corresponding measured element; when the actual positional relationship between the multiple measured elements is consistent with the design state, the measurement results of the inclination sensor using each fitting reference surface as a reference are the same; when the relative positional relationship between the multiple measured elements is inconsistent with the design state, the measurement results of the inclination sensor using each fitting reference surface as a reference are different; thereby, the actual positional relationship, i.e., the spatial size relationship, between the multiple measured elements can be accurately and efficiently detected through the inclination sensor and the tooling body provided with multiple fitting reference surfaces; and the detection of the multiple measured elements will not be restricted by the spatial relative distance between the multiple measured elements and the posture of the measured elements, thereby improving the versatility of the inspection tool.

[0009] Furthermore, it also includes an alignment line, which is used to align with the corresponding straight line feature of the measured element; the relative position relationship between the alignment line and the fitting reference plane corresponds to the relative position relationship between the surface feature and the straight line feature of the same measured element.

[0010] Furthermore, a first fitting reference plane and a second fitting reference plane are provided at the bottom of the tooling body; the first fitting reference plane matches the profile feature of the first measured element, and the second fitting reference plane matches the profile feature of the second measured element; and the relative position relationship between the first fitting reference plane and the second fitting reference plane corresponds to the relative position relationship between the first measured element and the second measured element in a parallel state.

[0011] Furthermore, the first element under test is an IC screen, and the second element under test is a DMS module.

[0012] Furthermore, the alignment line is used to align with the straight line feature of the DMS module; the relative position relationship between the alignment line and the second fitting reference plane corresponds to the relative position relationship between the profile feature and the straight line feature of the DMS module.

[0013] Furthermore, it also includes an alignment plate, which is connected to the tooling body, and the alignment line is provided on the surface of the alignment plate.

[0014] Furthermore, a fitting clearance is provided between each of the fitting reference surfaces and the corresponding profile feature of the measured element.

[0015] Furthermore, the tooling body is integrally formed by a 3D printing process; and / or the alignment plate is made of a transparent material.

[0016] Furthermore, the inclination sensor is provided with a display screen, a switch button, a zeroing button and a holding button.

[0017] Furthermore, the tool body is provided with an assembly groove, and the inclination sensor is embedded in the assembly groove; and / or the tool body is provided with a handheld operation hole.

[0018] When the above technical solution is adopted, the beneficial effects of the utility model are:

[0019] (1) The utility model integrates an inclination sensor into an integrated tooling body, and the integrated tooling body is provided with a plurality of fitting reference surfaces, and the relative position relationship between the plurality of fitting reference surfaces corresponds to the relative position relationship of a plurality of measured elements under the design state; for example, when the design state of two measured elements is a parallel state, the two fitting reference surfaces correspond to the profile features of the two measured elements under the parallel state, respectively, and the relative distance of the two measured elements in space does not need to be considered; when in use, one of the fitting reference surfaces is first fitted with the profile feature of the corresponding measured element, and the inclination sensor displays the inclination value and records or sets it to zero, and then the other fitting reference surface is fitted with the profile feature of the corresponding measured element, and the change in the inclination sensor reading is recorded. If the reading does not change, it indicates that the actual relative position relationship of the two measured elements is consistent with the design state; the utility model can realize accurate and efficient detection of the spatial dimension relationship of a plurality of measured elements, and is not limited by the spatial distance, nor is it limited by the measurement station and the position of the measured elements, that is, the measured elements can be measured in any posture, and has high versatility.

[0020] (2) When the surface features of the measured element do not include straight line features or have a certain curvature or other reasons that cause the complete positioning to be unable to be guaranteed after the fitting reference plane and the surface features of the measured element are fitted, the utility model aligns with other straight line features of the measured element through the set straight alignment line, so that the fitting reference plane and the alignment line are simultaneously fitted and aligned with the surface features and straight line features of the same measured element, thereby ensuring complete positioning between the tooling body and the measured element, thereby ensuring the accuracy of the inclination sensor measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a specific embodiment of the inspection tool of the utility model;

[0023] Figure 2It is a three-dimensional structural schematic diagram of the first laminating reference surface of the inspection tool of the utility model laminating with the IC screen;

[0024] Figure 3 It is a side view of the first laminating reference surface of the inspection tool of the utility model laminating with the IC screen;

[0025] Figure 4 It is a structural schematic diagram of the DMS module of the utility model.

[0026] List of reference numerals:

[0027] 1- tooling body; 2- tilt sensor; 3- alignment plate; 4- IC screen; 5- DMS module; 11- first laminating reference plane; 12- second laminating reference plane; 13- handheld operation hole; 31- alignment line. DETAILED DESCRIPTION

[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0029] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] like Figures 1 to 4 As shown, the embodiment of the utility model discloses a measuring tool for detecting space dimensions, which is used to accurately and efficiently detect the space dimensions of at least two measured elements;

[0032] See also Figure 1The inspection tool of the utility model includes a tool body 1 and an inclination sensor 2. The tool body 1 is provided with at least two fitting reference surfaces, wherein each fitting reference surface corresponds to a measured element and matches the profile feature of the corresponding measured element, so as to fit each fitting reference surface with the profile feature of the corresponding measured element to achieve positioning; the relative position relationship between the multiple fitting reference surfaces corresponds to the relative position relationship between the corresponding multiple measured elements in the design state.

[0033] It should be noted that the relative position relationship of multiple measured elements under the design state refers to a design state in which the multiple measured elements are parallel, perpendicular or other design states, and the multiple fitting reference surfaces on the tooling body 1 correspond to and match the profile features of the multiple measured elements under the design state, so that when the inclination sensor 2 takes the multiple fitting reference surfaces as references for measurement, the detection results of the multiple measured elements that meet the design state relationship are the same; that is, when each fitting reference surface of the tooling body 1 is fitted and fitted with the corresponding measured element, the inclination sensor 2 performs measurement, and the reading change of the inclination sensor 2 can detect whether the actual relative positions of the multiple measured elements are consistent with the design state and can obtain specific angle differences, so that the spatial size relationship of the multiple measured elements can be accurately and efficiently detected;

[0034] Furthermore, the relative positional relationship between the multiple fitting reference surfaces of the utility model does not need to consider the relative distance between the corresponding multiple measured elements, that is, the inspection fixture of the utility model is not limited by the relative distance between the multiple measured elements in space, and can be applied to the spatial dimension relationship detection between parts of different models, and has high applicability.

[0035] like Figure 1 As shown, the tooling body 1 is provided with a first fitting reference surface 11 and a second fitting reference surface 12. Those skilled in the art can specifically set the number of fitting reference surfaces, for example, three fitting reference surfaces can be set; and the multiple measured elements of the utility model can be multiple components, or multiple different positions of the same component; the surface features of the measured elements are local features or all features of the outer contour, and appropriate surface features are selected according to the shape and size of the measured elements themselves, so that the tooling body 1 can achieve complete positioning after the fitting reference surface is fitted with the surface features of the measured elements.

[0036] The inclination sensor 2 is used to perform measurements when each fitting reference plane fits with the corresponding surface features of the measured element; for example, when the first fitting reference plane 11 fits with the surface features of the first measured element, the inclination sensor 2 displays the measurement result of the first measured element and records or performs a zeroing operation; when the second fitting reference plane 12 fits with the surface features of the second measured element, the inclination sensor 2 displays the measurement result; when the two measurement results are the same, it indicates that the actual relative positions of the first measured element and the second measured element are consistent with the relative positions under the design state; when the two measurement results are different, the difference between the two measurement results is the angle difference between the two measured elements.

[0037] As a preferred embodiment of the present invention, Figure 1 As shown, the inspection fixture of the utility model also includes an alignment line 31; when the surface feature of the measured element does not include a straight line feature or has a certain curvature or other reasons that cause the fitting reference surface of the tooling body 1 to correspond to the surface feature of the measured element and still cannot be completely positioned, a high-precision alignment line 31 is set to align with other straight line features of the measured element; thereby, the high-precision alignment line 31 and the fitting reference surface are fitted and aligned with the surface features and straight line features of the same measured element, thereby ensuring that the tooling body 1 and the measured element are completely positioned, thereby ensuring that the measurement result of the inclination sensor 2 is more accurate.

[0038] In a specific embodiment, see Figure 1 An alignment plate 3 is installed on the tooling body 1 of the utility model, and an alignment line 31 is provided on the surface of the alignment plate 3; in order to facilitate observation of whether the alignment line 31 is aligned with the corresponding straight line feature of the measured element, the alignment plate 3 is made of a transparent material; preferably, the alignment plate 3 is a transparent acrylic plate.

[0039] It should be noted that, those skilled in the art can specifically set the connection method between the tooling body 1 and the alignment plate 3. The two can be connected in an active manner, such as hinged; they can also be detachably connected by fasteners; and those skilled in the art can also specifically select the material used for the alignment plate 3.

[0040] The embodiment of the utility model sets an alignment line 31 on the alignment plate 3, and those skilled in the art may also directly set the alignment line 31 on the tooling body 1; that is, as long as the schemes of setting the alignment line 31 and the fitting reference plane to achieve the fitting alignment with the corresponding measured element are within the protection scope of the utility model.

[0041] As a preferred embodiment of the present invention, continue to refer to Figure 1A first fitting reference plane 11 and a second fitting reference plane 12 are provided at the bottom of the tooling body 1, wherein the first fitting reference plane 11 matches the profile feature of the first measured element, and the second fitting reference plane 12 matches the profile feature of the second measured element; the relative position relationship between the first fitting reference plane 11 and the second fitting reference plane 12 corresponds to the relative position relationship between the first measured element and the second measured element in a parallel state.

[0042] For example, when detecting the spatial parallel dimensions of multiple measured elements, the Z-direction profile features of the measured elements, that is, the profile features in the vertical up and down directions, are usually selected; Figure 1 As shown, the first fitting reference plane 11 is fitted downward to the top surface feature of the first measured element, and the inclination sensor 2 performs measurement; the second fitting reference plane 12 is fitted downward to the top surface feature of the second measured element, and the inclination sensor 2 performs measurement again; the spatial parallel dimensions of the first measured element and the second measured element are detected by the change in the two readings of the inclination sensor 2, and the angular difference between the two measured elements can be obtained.

[0043] As a preferred embodiment of the present invention, there is a matching gap between each fitting reference surface and the corresponding profile feature of the measured element, so that the fitting reference surface and the corresponding profile feature of the measured element can fit together to achieve positioning;

[0044] Exemplarily, a 0.1 mm gap is reserved on one side between the first fitting reference plane 11 and the first measured element, and between the second fitting reference plane 12 and the second measured element; it is understandable that those skilled in the art can specifically set the size of the gap value, and the utility model does not make any specific limitation.

[0045] As a preferred embodiment of the present utility model, the tooling body 1 is integrally formed by a 3D printing process;

[0046] In a specific embodiment, Figure 1 As shown, for the measured element 2, the Z-direction profile feature of the measured element 1 formed by 3D printing is used as the first fitting reference surface 11 in the integrated tooling; the profile feature is selected according to the shape and size of the measured element 1 itself, so that the positioning is complete and a gap is reserved;

[0047] For the measured element 1, the Z-direction profile feature of the measured element 2 formed by 3D printing is used as the second fitting reference surface 12 in the integrated tooling, and the profile feature is selected according to the shape and size of the measured element 2 itself, so that the positioning is complete and a gap is reserved;

[0048] Thereby, the relative position relationship between the first fitting reference plane 11 and the second fitting reference plane 12 corresponds to the relative position relationship between the first measured element and the second measured element in the design state; for example, when the design state of the first measured element and the second measured element is parallel, the relative position relationship between the first fitting reference plane 11 and the second fitting reference plane 12 corresponds to the surface characteristics of the first measured element and the second measured element in the parallel state.

[0049] As a preferred embodiment of the present invention, Figure 1 As shown, the inclination sensor 2 is a digital inclinometer, which is provided with a display screen, a switch button, a zero button and a hold button; the digital inclinometer of the utility model can realize two functions of absolute inclination (slope / angle) measurement and relative angle measurement, and the measurement accuracy is preferably ±0.2°.

[0050] As a preferred embodiment of the present invention, the inclination sensor 2 of the present invention is detachably connected to the tooling body 1, an assembly groove is provided on the tooling body 1, the inclination sensor 2 is embedded in the assembly groove to realize integrated installation, and it is convenient to repair and replace the inclination sensor 2; it can be understood that other connection methods can also be used between the inclination sensor 2 and the tooling body 1, and the present invention does not make specific limitations.

[0051] As a preferred embodiment of the present invention, a hand-held operation hole 13 is provided on the tool body 1 to facilitate the hand-held inspection tool for inspection; and the hand-held operation hole 13 can reduce the weight of the inspection tool.

[0052] For example, Figure 1 As shown, an inclination sensor 2 is embedded and installed in the upper middle part of the tooling body 1, and hand-held operating holes 13 are respectively opened on the left and right sides of the inclination sensor 2; those skilled in the art can specifically set the positions of the inclination sensor 2 and the hand-held operating holes 13 according to actual conditions, and can also specifically set the number of the hand-held operating holes 13, and the present utility model does not make specific limitations.

[0053] The utility model combines an industrial-grade digital inclinometer with a 3D printing tool to realize digital output, providing an accurate, fast, low-cost and highly versatile detection solution; for a spatial interface with a high user perception, such as the relative relationship in the Z direction of the vehicle coordinate system, the relative relationship of the contours of multiple components in space can be detected, such as the relative position relationship between multiple components whose contours are basically parallel in the design state;

[0054] The utility model can accurately and efficiently detect the spatial dimension relationship between multiple measured elements; and is not limited by the measurement station and position of the measured elements, and can realize digital output of spatial dimensions anytime and anywhere, and can measure in any posture and any station.

[0055] The steps of the inspection tool of the utility model for inspection specifically include:

[0056] Step S1, turning on the switch of the tilt sensor 2;

[0057] Step S2, measuring the first measured element: fitting the first fitting reference surface 11 of the tooling body 1 with the profile feature of the first measured element; setting the reading of the inclination sensor 2 to zero or recording the reading;

[0058] Step S3, measuring the second measured element: fit the second fitting reference plane 12 of the tooling body 1 with the profile feature of the second measured element, and visually adjust the alignment line 31 to align with the straight line feature of the second measured element; record the reading of the inclination sensor 2 to obtain the angle difference between the first measured element and the second measured element.

[0059] It should be noted that, in the embodiment of the utility model, the alignment line 31 and the second fitting reference plane 12 are used together to correspond to the profile features and straight line features of the second measured element, and the alignment line 31 and the first fitting reference plane 11 are used together to correspond to the profile features and straight line features of the first measured element; and those skilled in the art can specifically set the number of the alignment lines 31, and the utility model does not make any specific limitation.

[0060] Example 1

[0061] like Figures 1 to 4 As shown, this embodiment is used to detect the spatial parallel dimensions of the IC screen 4 and the DMS module 5 .

[0062] The bottom of the tooling body 1 is provided with a first fitting reference surface 11, and the first fitting reference surface 11 matches the top profile feature of the IC screen 4; Figures 1 to 3 As shown, the top surface features of the IC screen 4 include arc features and straight line features; the first fitting reference plane 11 includes a groove and an extension portion, the groove is used to match the top arc feature of the IC screen 4, and the groove extends along the straight direction of the top long side of the IC screen 4, the extension portion is adapted to abut against one side surface of the IC screen 4, and the extension portion is a gradually narrowing structure from top to bottom.

[0063] The first fitting reference surface 11 includes two left and right parts, and a second fitting reference surface 12 is disposed between the two parts. The second fitting reference surface 12 matches the top profile feature of the DMS module 5; Figure 1 and Figure 4As shown, the top profile feature of the DMS module 5 includes an arc feature. After the second fitting reference surface 12 is fitted with the top profile feature of the DMS module 5, the tooling body 1 and the DMS module 5 cannot be completely positioned, and there is shaking. The alignment line 31 is aligned with other straight line features of the DMS module 5, specifically, the alignment line 31 is aligned parallel to the bottom black edge of the screen of the DMS module 5 to ensure complete positioning.

[0064] The specific measurement steps are:

[0065] Turn on the switch of tilt sensor 2;

[0066] Measuring the IC screen 4: fitting the first fitting reference plane 11 with the top profile feature of the IC screen 4, and setting the reading of the inclination sensor 2 to zero or recording the reading of the inclination sensor 2;

[0067] Measuring the DMS module 5: fit the second fitting reference plane 12 to the top profile feature of the DMS module 5, visually adjust the alignment line 31 to be parallel to the bottom black edge of the screen of the DMS module 5, and record the reading of the inclination sensor 2;

[0068] By using the inclination sensor 2 to measure with the first fitting reference plane 11 and the second fitting reference plane 12 as references, it is possible to detect whether the actual spatial dimensions of the IC screen 4 and the DMS module 5 are parallel and obtain the angle difference between the two.

[0069] It should be noted that, although the embodiment of the utility model is described by taking the detection of the spatial parallel dimension relationship between the IC screen 4 and the DMS module 5 as an example; it is obvious that the inspection fixture of the utility model can also be used for the detection between other measured elements, such as the detection of the spatial parallel dimensions of the IC screen 4 and the ICS central control screen, which can be achieved by matching the first fitting reference surface 11 with the surface features of the IC screen 4 and matching the second fitting reference surface 12 with the surface features of the ICS central control screen; that is to say, as long as the scheme of detecting the spatial dimensions of multiple measured elements is realized by using the inclination sensor 2 and the tooling body 1 with multiple fitting reference surfaces, it is within the protection scope of the utility model.

[0070] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A gauge for detecting space dimensions, characterized in that: It comprises a tool body (1) and an inclination sensor (2); The tool body (1) is provided with at least two fitting reference surfaces, each of which matches the profile feature of the corresponding measured element; The relative positional relationship between all the fitting reference surfaces corresponds to the relative positional relationship between all the corresponding measured elements in the design state; The inclination sensor (2) is used to perform measurement when each fitting reference surface fits with the corresponding profile feature of the measured element.

2. The gauge for detecting space dimensions according to claim 1, characterized in that: It also includes an alignment line (31), wherein the alignment line (31) is used to align with the corresponding straight line feature of the measured element; The relative positional relationship between the alignment line (31) and the fitting reference plane corresponds to the relative positional relationship between the profile feature and the straight line feature of the same measured element.

3. The gauge for detecting space dimensions according to claim 2, characterized in that: The bottom of the tool body (1) is provided with a first fitting reference surface (11) and a second fitting reference surface (12); The first fitting reference surface (11) matches the profile characteristics of the first measured element, and the second fitting reference surface (12) matches the profile characteristics of the second measured element; Furthermore, the relative positional relationship between the first fitting reference plane (11) and the second fitting reference plane (12) corresponds to the relative positional relationship between the first measured element and the second measured element in a parallel state.

4. The gauge for detecting space dimensions according to claim 3, characterized in that: The first element to be measured is an IC screen (4), and the second element to be measured is a DMS module (5).

5. The gauge for detecting space dimensions according to claim 4, characterized in that: The alignment line (31) is used to align with a straight line feature of the DMS module (5); The relative positional relationship between the alignment line (31) and the second fitting reference plane (12) corresponds to the relative positional relationship between the profile feature and the straight line feature of the DMS module (5).

6. The gauge for detecting space dimensions according to claim 2, characterized in that: It also comprises an alignment plate (3), the alignment plate (3) being connected to the tooling body (1), and the alignment line (31) being provided on the surface of the alignment plate (3).

7. The gauge for detecting space dimensions according to claim 1, characterized in that: A matching clearance is provided between each of the fitting reference surfaces and the corresponding profile feature of the measured element.

8. The gauge for detecting space dimensions according to claim 6, characterized in that: The tool body (1) is integrally formed by a 3D printing process; and / or The alignment plate (3) is made of a transparent material.

9. The gauge for detecting space dimensions according to claim 1, characterized in that: The inclination sensor (2) is provided with a display screen, a switch button, a zeroing button and a holding button.

10. The gauge for detecting space dimensions according to any one of claims 1 to 9, characterized in that: The tool body (1) is provided with an assembly groove, and the inclination sensor (2) is embedded in the assembly groove; and / or The tool body (1) is provided with a hand-held operation hole (13).