Measuring jig

Abstract

The utility model relates to a measuring jig which is used for measuring a plate structural member, the measuring jig comprises a base, a supporting part and a measuring platform, the supporting part is arranged in a first area of the base and extends in the thickness direction of the base, and the supporting part is used for supporting the plate structural member; the measuring platform is arranged in a second area of the base, and the second area partially protrudes in the thickness direction of the base to form the measuring platform; the second area is arranged around the first area, the base at least comprises two faces in the thickness direction, and the supporting part and the measuring platform are arranged on the same face of the base. According to the invention, the plate structural member is supported through the supporting part, the deformation degree of the plate structural member can be obtained through the gap between the plate structural member and the measuring platform, the operation is simple, the deformation degree of the plate structural member at a specific position can be specially measured, and the application range is wider.

Description

Technical Field

[0001] The present disclosure relates to the field of production equipment, and particularly to a measuring fixture. Background Art

[0002] Sheet structural parts are required in a large number of products. However, since sheet structural parts are generally relatively thin, they are prone to deformation during the production process, resulting in the final sheet structural parts not meeting the requirements of the production products. For example, the battery cover required in a mobile phone is prone to deformation during production. If it is installed on the mobile phone, it may damage the components inside the mobile phone.

[0003] Therefore, after the sheet structural parts are produced, it is necessary to measure the degree of deformation of the sheet structural parts (which can also be called flatness detection) to eliminate unqualified sheet structural parts. However, the current measuring fixtures are cumbersome to use. Utility Model Content

[0004] To overcome the problems existing in the related art, the present disclosure provides a measuring fixture.

[0005] According to an embodiment of the present disclosure, there is provided a measuring fixture for measuring a sheet structural part, including: a base, a support portion, and a measuring platform.

[0006] The support portion is disposed in a first region of the base and extends along the thickness direction of the base. The support portion is used to support the sheet structural part.

[0007] The measuring platform is disposed in a second region of the base. The second region protrudes locally along the thickness direction of the base to form the measuring platform.

[0008] The second region surrounds the first region. The base includes at least two sides along the thickness direction. The support portion and the measuring platform are disposed on the same side of the base.

[0009] In some embodiments, in the thickness direction of the base, the height of the support portion is greater than the height of the measuring platform.

[0010] In some embodiments, in the thickness direction of the base, the height difference between the support portion and the measuring platform is a preset height difference.

[0011] In some embodiments, the measuring fixture includes a length direction and a width direction that are perpendicular to each other. The measuring fixture includes a plurality of support portions, and the plurality of support portions are arranged at intervals along the length direction and / or the width direction of the measuring fixture.

[0012] In some embodiments, the measuring fixture includes a positioning member disposed on the surface of the base where the supporting portion is provided, and the positioning member is used to position the plate structural member.

[0013] In some embodiments, in the thickness direction of the base, the height of the positioning member is greater than the height of the supporting portion, and the positioning member is used to insert into the positioning hole formed in the plate structural member to position the plate structural member.

[0014] In some embodiments, the cross-section of the positioning member is set to a preset shape, so that when the positioning member is inserted into the positioning hole, the side wall of the positioning member abuts against the edge of the positioning hole.

[0015] In some embodiments, the measuring fixture includes a length direction and a width direction that are perpendicular to each other, and the measuring fixture includes a plurality of supporting portions, and the plurality of supporting portions are arranged at intervals along the length direction and / or the width direction of the measuring fixture;

[0016] Some of the supporting portions are integrally provided / adjacent to the positioning member, and a stepped structure is formed on a partial side wall of the positioning member.

[0017] In some embodiments, the measuring fixture includes four supporting portions, and the four supporting portions are arranged in a rectangle. Among them, two supporting portions close to the positioning member are integrally provided with the positioning member, and two spaced stepped structures are formed on the side wall of the positioning member.

[0018] In some embodiments, a recessed portion is formed by locally recessing a second region of the base in the thickness direction of the base, and the recessed portion is used to grasp the plate structural member.

[0019] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: The plate structural member is placed on the supporting portion of the measuring fixture, and the supporting portion actually forms a limit for the plate structural member in the thickness direction of the plate structural member. By comparing the position of the edge of the plate structural member with the measuring platform of the measuring fixture, the deformation degree of the plate structural member can be determined. This measuring fixture is simple and convenient to use, and does not need to rely on other auxiliary fixtures. Especially for plate structural members with different requirements for flatness in different parts, the measuring fixture of this embodiment can conveniently measure the flatness of local areas with higher flatness requirements, making the measurement more targeted.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0021] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0022] Figure 1 is a schematic structural diagram of a measuring fixture shown according to an exemplary embodiment.

[0023] Figure 2 is a schematic structural diagram of a sheet structural member shown according to an exemplary embodiment.

[0024] Figure 3 is a schematic structural diagram of a combined state of a measuring fixture and a sheet structural member shown according to an exemplary embodiment.

[0025] Figure 4 is a schematic structural diagram of a measuring fixture shown according to an exemplary embodiment.

[0026] Figure 5 is a schematic structural diagram of a measuring fixture shown according to an exemplary embodiment.

[0027] Figure 6 is a schematic structural diagram of a combined state of a measuring fixture and a sheet structural member shown according to an exemplary embodiment.

[0028] Figure 7 is Figure 6 a sectional view taken along A - A'.

[0029] Figure 8 is Figure 6 a sectional view taken along B - B'.

[0030] Reference numerals: 1, base; 11, first region; 12, second region; 13, recess; 2, support portion; 21, first support portion; 22, second support portion; 23, third support portion; 24, fourth support portion; 3, measuring platform; 4, sheet structural member; 41, positioning hole; 5, positioning member. Detailed Description of the Invention

[0031] Here, the exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] The present disclosure provides a measuring fixture for measuring a sheet structural member. The measuring fixture includes a base, a support portion, and a measuring platform.

[0033] The supporting part is arranged in the first area of the base and extends along the thickness direction of the base. The supporting part is used to support the plate structural member.

[0034] The measuring platform is arranged in the second area of the base. A part of the second area protrudes along the thickness direction of the base to form the measuring platform.

[0035] The second area is arranged around the first area. The base includes at least two sides along the thickness direction. The supporting part and the measuring platform are arranged on the same side of the base.

[0036] In the embodiment of the present disclosure, by arranging the supporting part to support the plate structural member, fixation of the plate structural member is formed in the thickness direction of the plate structural member. By comparing the edge of the plate structural member with the measuring platform, measurement of the deformation degree of the plate structural member is realized. This measuring fixture is easy to use and does not rely on other auxiliary fixtures, which is beneficial to improving the detection efficiency of the plate structural member.

[0037] The measuring fixture in the present disclosure is a tool for measuring the deformation degree of a plate structural member. Of course, those skilled in the art can also apply this measuring fixture to other uses, and the present disclosure does not limit this.

[0038] The plate structural member is a workpiece whose thickness dimension is much smaller than its own length dimension and width dimension. During and after the production process, it may be deformed due to factors such as its own stress, reducing the flatness of the plate structural member. When the deformation reaches a certain degree, it is difficult to meet the needs of product production and may even damage the product.

[0039] For example, the plate structural member can be the battery cover of a terminal device. If the deformation degree of the battery cover is too large, it may cause the battery cover to be unable to be installed, pressing and damaging components such as the battery, chip or sensor inside the terminal device. Here, the terminal device can refer to a mobile phone.

[0040] Figure 1 It is a schematic structural diagram of a measuring fixture shown according to an exemplary embodiment for measuring a plate structural member. The measuring fixture includes a base 1, a supporting part 2 and a measuring platform 3.

[0041] The supporting part 2 is arranged in the first area 11 of the base 1 and extends along the thickness direction of the base 1. The supporting part 2 is used to support the plate structural member 4.

[0042] The measuring platform 3 is arranged in the second area 12 of the base 1. A part of the second area 12 protrudes along the thickness direction of the base 1 to form the measuring platform 3.

[0043] The second area 12 is arranged around the first area 11. The base 1 includes at least two sides along the thickness direction. The supporting part 2 and the measuring platform 3 are arranged on the same side of the base 1.

[0044] In an embodiment of the present disclosure, the sheet structural member is placed on the supporting portion 2 of the measuring jig. The supporting portion 2 actually forms a limit for the sheet structural member in the thickness direction of the sheet structural member. By comparing the position of the edge of the sheet structural member with the measuring platform 3 of the measuring jig, the deformation degree of the sheet structural member can be determined. This measuring jig is simple and convenient to use and does not rely on other auxiliary jigs. Especially for sheet structural members with different flatness requirements for different parts, the measuring jig of this embodiment can easily measure the flatness of local areas with higher flatness requirements, making the measurement more targeted.

[0045] The first region 11 and the second region 12 are used to represent different region divisions of the base 1, which does not mean that the base 1 is to be set as two independent and separable structures.

[0046] In some embodiments, when the measuring jig is in use, the base 1 is generally placed horizontally, that is, the thickness direction of the base 1 is the vertical direction, and the extending direction of the supporting portion 2 is also the vertical direction. In this way, the sheet structural member can be stably limited at the end of the supporting portion 2 under the action of gravity.

[0047] In some embodiments, the measuring jig has only one supporting portion 2, and the end face of the supporting portion 2 for supporting the sheet structural member is a horizontal plane, so as to stably support the sheet structural member in the case of only one supporting portion 2.

[0048] Figure 2 is a schematic structural diagram of a sheet structural member shown according to an exemplary embodiment, as Figure 2 shown, to meet the needs of the product, a folding structure will be made at the edge of the sheet structural member 4. To better measure such a sheet structural member 4, in some embodiments, in the thickness direction of the base 1, the height of the supporting portion 2 is greater than the height of the measuring platform 3.

[0049] Figure 3 is a schematic structural diagram of the combined state of a measuring jig and a sheet structural member shown according to an exemplary embodiment, as Figure 3 shown, when using this measuring jig, the sheet structural member 4 is buckled on the measuring jig. Among them, the folding direction of the edge of the sheet structural member 4 faces the measuring jig. After the middle part of the sheet structural member 4 is supported by the supporting portion 2 of the measuring jig, the edge of the sheet structural member 4 faces the second region 12 of the base 1 of the measuring jig. Setting the height of the supporting portion 2 to be greater than the height of the measuring platform 3 facilitates comparing the height of the measuring platform 3 with that of the sheet structural member 4 to obtain the measurement result of the flatness of the sheet structural member 4.

[0050] In some embodiments, the sheet structural member 4 can be the battery cover of a terminal device. Here, the terminal device can be a mobile phone.

[0051] In some embodiments, in the thickness direction of the base 1, the height difference between the support portion 2 and the measurement platform 3 is a preset height difference.

[0052] The preset height difference generally refers to the folding height formed in the thickness direction of the sheet structural member 4 after the edge of the sheet structural member 4 is folded.

[0053] In the embodiments of the present disclosure, the height difference between the support portion 2 and the measurement platform 3 is set as the preset height difference. When using the measurement jig of this embodiment to measure the sheet structural member 4, if the sheet structural member 4 does not deform, the edge of the sheet structural member 4 just overlaps the measurement platform 3 of the measurement jig. If the sheet structural member 4 deforms, there is a gap between the edge of the sheet structural member 4 and the measurement platform 3, and accurate deformation data can be obtained only by inserting a feeler gauge into the gap.

[0054] A feeler gauge is a commonly used measurement tool for those skilled in the art, and its usage method is also known to those skilled in the art, so it will not be elaborated here.

[0055] For the sheet structural member 4 with a folded edge, the deformation direction is generally the opposite direction of the edge folding, so only the deformation in a single direction needs to be considered, without worrying that the edge of the sheet structural member 4 deforms in the folding direction and causes the sheet structural member 4 to be lifted by the measurement platform 3.

[0056] In some embodiments, the measurement jig is customized according to the specifications of the sheet structural member 4, and the height difference between its measurement platform 3 and the support portion 2 is fixed.

[0057] In some embodiments, among the support portion 2 and the measurement platform 3 of the measurement jig, the height of the support portion 2 is adjustable, or the height of the measurement platform 3 is adjustable, or the heights of both the support portion 2 and the measurement platform 3 are adjustable, so as to be applied to the measurement of sheet structural members 4 of different specifications.

[0058] Figure 4 It is a schematic structural diagram of a measurement jig shown according to an exemplary embodiment. As Figure 4 shown, the measurement jig includes a length direction and a width direction that are perpendicular to each other. The measurement jig includes a plurality of support portions 2, and the plurality of support portions 2 are arranged along the length direction of the measurement jig, or along the width direction of the measurement jig, or along both the length and width directions of the measurement jig.

[0059] In the present disclosure, by providing a plurality of support portions 2 on the measurement jig, a more stable support effect can be achieved on the sheet structural member, avoiding the unstable support caused by a single fulcrum of the sheet structural member and affecting the measurement accuracy.

[0060] Figure 5 It is a schematic structural diagram of a measurement jig shown according to an exemplary embodiment. AsFigure 5 As shown, the measuring fixture includes a positioning member 5, and the positioning member 5 is arranged on the surface of the base 1 where the supporting portion 2 is provided. The positioning member 5 is used to position the sheet structural member.

[0061] In the embodiment of the present disclosure, the supporting portion 2 forms a vertical positioning of the sheet structural member. After the positioning member 5 is provided, the positioning member 5 forms a horizontal positioning of the sheet structural member, thereby forming a three-dimensional positioning of the sheet structural member, which is beneficial to improving the measurement accuracy of the sheet structural member, and can also prevent the sheet structural member from shifting during the measurement process, making the measurement more convenient.

[0062] In some embodiments, as Figure 5 shown, the height of the positioning member 5 is greater than the height of the supporting portion 2. The positioning member 5 is used to be inserted into the positioning hole 41 formed in the sheet structural member to position the sheet structural member.

[0063] In the embodiment of the present disclosure, the way of positioning the sheet structural member by the fixing member is set as the positioning member 5 being inserted into the positioning hole of the sheet structural member. The implementation method is convenient and the operation is easy. And it will not cause the deformation of the sheet structural member and affect the measurement accuracy.

[0064] In some embodiments, the sheet structural member may be a battery cover of a terminal device, and the positioning hole may be a lens hole formed in the battery cover for the camera lens to pass through.

[0065] Figure 6 is a schematic structural diagram of the combined state of a measuring fixture and a sheet structural member 4 shown according to an exemplary embodiment. As Figure 6 shown, the cross-section of the positioning member 5 is set to a preset shape, which is used to make the side wall of the positioning member 5 abut against the edge of the positioning hole 41 when the positioning member 5 is inserted into the positioning hole 41.

[0066] In the embodiment of the present disclosure, the side wall of the positioning member 5 abuts against the edge of the positioning hole 41 of the sheet structural member 4, which can make the positioning member 5 completely fix the sheet structural member 4 in the horizontal direction through the positioning hole 41. The sheet structural member 4 has no moving margin, forming a more stable positioning effect on the sheet structural member 4.

[0067] In some embodiments, as Figure 6 shown, the preset shape is the same as the edge contour of the positioning hole 41 to obtain the best positioning effect. Figure 6 Only an exemplary shape of the positioning member 5 and the positioning hole 41 is given herein, but it is not limited thereto.

[0068] In some embodiments, a partial position of the preset shape is the same as a part of the edge contour of the positioning hole 41, so that on the basis of fully fixing the plate structural member 4, the positioning member 5 of the measuring fixture can be made to be applicable to positioning holes 41 of different shapes as much as possible, thereby improving the versatility of the measuring fixture.

[0069] In some embodiments, a suction cup structure (not shown in the figure) may also be provided at the end of the positioning member 5 for adsorbing the plate structural member 4 to form a fixation of the plate structural member 4. The positioning member 5 in this embodiment can be applicable to plate structural members 4 of different shapes and specifications, greatly improving the versatility.

[0070] In some embodiments, as Figure 5 shown, the measuring fixture includes a length direction and a width direction that are perpendicular to each other. The measuring fixture includes a plurality of support portions 2, and the plurality of support portions 2 are arranged at intervals along the length direction and / or the width direction of the measuring fixture; wherein some of the support portions 2 are integrally provided with or adjacent to the positioning member 5 to form a stepped structure on a partial side wall of the positioning member 5.

[0071] The integral setting means that the support portion 2 and the positioning member 5 are directly integrally connected, rather than the support portion 2 and the positioning member 5 being connected through the base 1.

[0072] In the embodiments of the present disclosure, integrally providing or adjacently arranging some of the support portions 2 with the positioning member 5 can make the surface of the measuring fixture more concise and facilitate determining the positions of the respective support portions 2 during manufacturing. Especially when the support portion 2 and the positioning member 5 are integrally provided, the positioning member 5 and the support portion 2 can be integrally processed, simplifying the manufacturing process.

[0073] In some embodiments, as Figure 5 shown, the measuring fixture includes four support portions 2, and the four support portions 2 are arranged in a rectangle. Among them, two support portions 2 close to the positioning member 5 are integrally provided with the positioning member 5 to form two spaced stepped structures on the side wall of the positioning member 5.

[0074] In the embodiments of the present disclosure, the four support portions 2 arranged in a rectangle form a stable support plane in the horizontal direction, effectively avoiding situations that are not conducive to measurement such as the plate structural member turning over and skewing. Moreover, integrally providing two of the support portions 2 with the positioning member 5 effectively reduces the processing difficulty of the measuring fixture and simplifies the process.

[0075] In one example, as Figure 5 shown, the measuring fixture includes a total of four support portions 2, namely a first support portion 21, a second support portion 22, a third support portion 23, and a fourth support portion 24, which are arranged in a rectangle. Among them, the first support portion 21 and the second support portion 22 are integrally provided with the positioning member 5 to form stepped structures at the corner portions on both sides of the positioning member 5 respectively.

[0076] In some embodiments, the first support portion 21, the second support portion 22, the third support portion 23, and the fourth support portion 24 may also be arranged in any other quadrilateral shape, as long as the four support portions 2 are not all collinear.

[0077] Figure 7 Yes Figure 6 A cross-sectional view along A-A', Figure 8 Yes Figure 6 A cross-sectional view along B-B', as Figure 7 , Figure 8 shown. When the plate structural member 4 is placed on the measuring jig, the positioning member 5 of the measuring jig is inserted into the positioning hole 41 of the plate structural member 4, and the support portion 2 abuts against the middle region of the plate structural member 4. A partial edge of the plate structural member 4 faces the measuring platform 3. By using tools such as a feeler gauge, the deformation degree of the plate structural member 4 can be measured from the measuring platform 3, and then it can be determined whether the plate structural member 4 meets the requirements.

[0078] In some embodiments, the positioning member 5, the support portion 2, and the measuring platform 3 may be integrally provided with the base 1 respectively, or may be spliced after being manufactured separately. The present disclosure does not make a limitation in this regard.

[0079] The specific shapes, heights, cross-sectional areas, etc. of the support portion 2, the positioning member 5, and the measuring platform 3 in the drawings are all exemplary and do not form limitations on the dimensions and shapes.

[0080] In some embodiments, as Figures 4 to 6 shown, a recessed portion 13 is formed by partially recessing the second region 12 of the base 1 in the thickness direction of the base 1, and the recessed portion 13 is used to grasp the plate structural member 4.

[0081] In the embodiments of the present disclosure, the gap between the plate structural member 4 and the base 1 is small. By providing the recessed portion 13, it is beneficial for the operator to take the plate structural member 4 away from the measuring jig, improving the usability of the measuring jig.

[0082] The present disclosure provides a measuring jig. A support portion is provided in the first region of the base of the measuring jig, and a measuring platform is provided in the second region surrounding the first region of the base of the measuring jig. When using this measuring jig to measure a plate structural member, the middle part of the plate structural member is supported by the support portion, and a feeler gauge is inserted between the edge of the plate structural member and the measuring platform, and then the deformation degree of the plate structural member can be measured.

[0083] Using the measuring jig in the embodiments of the present disclosure, the deformation degree of the plate structural member can be measured relatively simply to determine whether the plate structural member meets the usage standards.

[0084] It can be understood that in the present disclosure, "a plurality of" means two or more, and other quantifiers are similar thereto. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after. The singular forms of "a", "the", and "said" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0085] It can be further understood that the terms "first", "second", etc. are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other and do not represent a specific order or degree of importance. In fact, expressions such as "first" and "second" can be used interchangeably completely. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0086] It can be further understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0087] It can be further understood that unless otherwise specified, "connection" includes direct connection without other components between the two, and also includes indirect connection with other elements between the two.

[0088] It can be further understood that although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring these operations to be performed in the specific order shown or in a serial order, or requiring all the operations shown to obtain the desired result. In a specific environment, multitasking and parallel processing may be advantageous.

[0089] Those skilled in the art will readily think of other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0090] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A measuring fixture, characterized in that, A measuring fixture for measuring a sheet structural member, comprising a base, a support portion and a measuring platform; The support portion is disposed in a first region of the base and extends in a thickness direction of the base, and the support portion is configured to support the sheet structural member; The measuring platform is disposed in a second region of the base, and a part of the second region protrudes in the thickness direction of the base to form the measuring platform; The second region is disposed to surround the first region, the base includes at least two surfaces in the thickness direction, and the support portion and the measuring platform are disposed on the same surface of the base.

2. The measuring fixture according to claim 1, wherein, In the thickness direction of the base, the height of the support portion is greater than the height of the measuring platform.

3. The measuring jig according to claim 2, wherein, In the thickness direction of the base, the height difference between the support portion and the measuring platform is a preset height difference.

4. The measuring jig according to any one of claims 1 to 3, characterized in that, The measuring fixture includes a length direction and a width direction that are perpendicular to each other, the measuring fixture includes a plurality of support portions, and the plurality of support portions are spaced apart along the length direction and / or the width direction of the measuring fixture.

5. The measuring fixture according to any one of claims 1-3, characterized in that, The measuring fixture includes a positioning member, the positioning member is disposed on a surface of the base where the support portion is disposed, and the positioning member is configured to position the sheet structural member.

6. The measuring jig according to claim 5, wherein In the thickness direction of the base, the height of the positioning member is greater than the height of the support portion, and the positioning member is configured to be inserted into a positioning hole formed in the sheet structural member to position the sheet structural member.

7. The measuring fixture according to claim 6, wherein The cross section of the positioning member is set to a preset shape, and is configured to make the side wall of the positioning member abut against the edge of the positioning hole when the positioning member is inserted into the positioning hole.

8. The measuring jig according to claim 6 or 7, characterized in that, The measuring fixture includes a length direction and a width direction that are perpendicular to each other, the measuring fixture includes a plurality of support portions, and the plurality of support portions are spaced apart along the length direction and / or the width direction of the measuring fixture; Wherein, some of the support portions are integrally provided / adjacent to the positioning member, and a stepped structure is formed on a partial side wall of the positioning member.

9. The measuring jig according to claim 8, wherein The measuring fixture includes four support portions, and the four support portions are arranged in a rectangle. Among them, two support portions adjacent to the positioning member are integrally provided with the positioning member, and two spaced stepped structures are formed on the side wall of the positioning member.

10. The measuring jig according to any one of claims 1-3, characterized in that, A recessed portion is formed by locally recessing the second region of the base in the thickness direction of the base, and the recessed portion is configured to grip the sheet structural member.

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