CN221223723U - 2D glass measurement jig and glass measurement system - Google Patents

Abstract

The present disclosure provides a 2D glass measurement jig and a glass measurement system. The 2D glass measurement jig comprises a bottom plate and a plurality of limiting blocks, wherein a detection area and a mounting area are arranged on the first surface of the bottom plate, the detection area is used for supporting glass to be measured, and the mounting area is arranged around the detection area; the limiting blocks are detachably arranged in the installation area to form a first limiting group and a second limiting group, the first limiting group is arranged along a first direction, a reference surface along the first direction is formed on one side, away from the detection area, of the first limiting group, the second limiting group is arranged along a second direction, and a reference surface along the second direction is formed on one side, away from the detection area, of the second limiting group; an attaching surface is arranged on one side, facing the detection area, of the limiting block, and is used for attaching the side edge of the glass to be detected; wherein the first direction and the second direction are perpendicular.

Description

2D glass measurement jig and glass measurement system

Technical Field

The disclosure relates to the technical field of glass production, in particular to a 2D glass measurement jig and a glass measurement system.

Background

With the development of display devices, the demand for glass plates applied to display screens is also increasing, and in order to ensure the beauty and uniqueness of products, the design forms of the products are increasingly diversified, and glass plates with irregular shapes are also generated, for example, the application field of vehicle-mounted display screens.

For irregularly-shaped 2D glass, special jigs are required to be used for measuring the irregularly-shaped 2D glass in the production process so as to finish accurate measurement of the size, the outline characteristic size and the like of the glass. The currently applied measuring jig is a corner jig with integral modeling formed on two sides based on X, Y shafts, and provides a profiling bonding surface for glass to be measured.

However, the existing jig is of an integral structure and is large in length, and the jig is easy to deform in the machining process or the using process, so that the measurement accuracy is seriously affected.

Disclosure of utility model

One technical problem to be solved by the present disclosure is: the existing integral glass measuring jig has the problems that the dimension is large, deformation is easy to occur in the processing and using processes, and the measuring precision is seriously affected.

To solve the above technical problem, an embodiment of the present disclosure provides a 2D glass measurement jig, which includes:

The first surface of the bottom plate is provided with a detection area and a mounting area, the detection area is used for supporting glass to be detected, and the mounting area is arranged around the detection area;

The limiting blocks are detachably arranged in the installation area to form a first limiting group and a second limiting group, the first limiting group is arranged along a first direction, a reference surface along the first direction is formed on one side, away from the detection area, of the first limiting group, the second limiting group is arranged along a second direction, and a reference surface along the second direction is formed on one side, away from the detection area, of the second limiting group; one side of the limiting block, facing the detection area, is provided with an attaching surface, and the attaching surface is used for attaching the side edge of the glass to be detected;

Wherein the first direction and the second direction are perpendicular.

In some embodiments, the 2D glass measurement jig described above, wherein the first limit set and the second limit set each include at least two limit blocks.

In some embodiments, the 2D glass measurement jig described above, wherein the at least two stoppers are continuously disposed in the first direction or the second direction.

In some embodiments, the 2D glass measurement jig described above, wherein at least two stoppers are disposed at intervals in the first direction or the second direction.

In some embodiments, the 2D glass measurement jig is provided with a first connecting portion along the first direction and the second direction on the mounting area;

the limiting block is provided with a second connecting part matched with the first connecting part, so that the limiting block can be detachably connected to the installation area through the first connecting part and the second connecting part.

In some embodiments, the 2D glass measurement jig described above, wherein the first connection portion includes a plurality of spaced positioning holes;

the second connecting portion comprises at least two positioning columns matched with the positioning holes, so that the limiting block can be inserted into the mounting area.

In some embodiments, the 2D glass measurement jig described above, wherein at least two positioning posts are disposed continuously or at intervals.

In some embodiments, the 2D glass measurement jig described above, wherein the first connection portion includes first magnetic portions disposed continuously or at intervals;

The second connecting portion is a second magnetic portion matched with the first magnetic portion, so that the limiting block can be adsorbed to the mounting area.

In some embodiments, the 2D glass measurement jig includes a third surface and a fourth surface opposite to each other;

The third surface is a straight surface, and the fourth surface forms an attaching surface through profiling design.

An embodiment of the second aspect of the present application provides a glass measurement system, which includes the aforementioned 2D glass measurement jig.

Through above-mentioned technical scheme, the 2D glass measurement jig that this disclosure provided sets up detection zone and installation district on the bottom plate, through setting up a plurality of stopper formation along the limit group of first direction and second direction at installation district detachable, provide spacing benchmark and measurement benchmark on first direction and the second direction for the glass board that awaits measuring for the glass that awaits measuring is arranged in the detection zone, and its side along first direction and second direction can be spacing laminating by a plurality of stoppers, replaces the wholeness tool structure through the stopper of multistage formula promptly, in order to shorten the length of spacing tool, guarantees that the deformation possibility of stopper is all greatly reduced no matter in processing or use, has effectively guaranteed the measurement accuracy of glass that awaits measuring. The problem that the size of the existing integral glass measuring jig is large, deformation is easy to occur in the processing and using processes, and the measuring precision is seriously affected is effectively solved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of a first structure of a 2D glass measurement jig according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a second structure of a 2D glass measurement jig according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a third structure of a 2D glass measurement jig according to an embodiment of the present disclosure;

FIG. 4 is a top view of a 2D glass measurement jig according to an embodiment of the present disclosure in use;

Fig. 5 is a schematic structural diagram of a base plate in a 2D glass measurement jig according to an embodiment of the present disclosure.

Reference numerals illustrate:

1. A bottom plate; 11. a detection zone; 12. an installation area; 13. a first connection portion; 2. a limiting block; 21. a bonding surface; 22. a second connecting portion; 3. glass to be measured; 4. a first limiting group; 5. a second limiting group; a. a first direction; b. a second direction.

Detailed Description

Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the disclosure and not to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.

The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

In the description of the present disclosure, unless otherwise indicated, the meaning of "plurality" is greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.

Furthermore, the use of the terms first, second, and the like in this disclosure do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.

It should also be noted that, in the description of the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present disclosure may be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.

All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.

In the glass production process, the method is suitable for measuring the size and the outline characteristic size of the 2D glass with irregular outline nowadays, and a special fixture is required to be equipped. The currently applied measuring jig is a corner jig with two sides forming an L-shaped whole based on X, Y shafts, or a longer single-side jig corresponding to X, Y single sides forming a profile modeling joint surface for glass to be measured.

However, the existing jig is of an integral structure, the length is large, deformation of the jig is easy to occur no matter in the processing process or the frequent use process, the length of the glass jig corresponding to the larger size is larger, the deformation possibility and degree are larger, and the measurement accuracy is seriously affected.

The 2D glass measurement jig provided by the embodiment adopts the mode that the combined multi-section small-size limiting block 2 corresponds to the X, Y direction to form the limiting group to measure the glass 3 to be measured, so that the measurement placement position of the glass 3 to be measured is more accurate, and the problem that the measurement jig is easy to deform to influence the measurement precision is greatly solved.

Example 1

Referring to fig. 1 and 5, the embodiment discloses a 2D glass measuring jig, which comprises a bottom plate 1 and a plurality of limiting blocks 2; a detection area 11 and a mounting area 12 are arranged on the first surface of the bottom plate 1, the detection area 11 is used for supporting the glass 3 to be detected, and the mounting area 12 is arranged around the detection area 11; the limiting blocks 2 are detachably arranged in the mounting area 12 to form a first limiting group 4 and a second limiting group 5, the first limiting group 4 is arranged along a first direction a, a reference surface along the first direction a is formed on one side of the first limiting group 4, which faces away from the detection area 11, the second limiting group 5 is arranged along a second direction b, and a reference surface along the second direction b is formed on one side of the second limiting group 5, which faces away from the detection area 11; an attaching surface 21 is arranged on one side of the limiting block 2 facing the detection area 11, and the attaching surface 21 is used for attaching the side edge of the glass 3 to be detected; wherein the first direction a and the second direction b are perpendicular.

Specifically, in order to solve the problem that the existing integral glass measurement jig is large in size, deformation is easy to occur in the process of processing and using, and measurement accuracy is seriously affected, the embodiment provides a 2D glass measurement jig, by detachably arranging limiting blocks 2 on an installation area 12 of a bottom plate 1, a first limiting group 4 or a second limiting group 5 along a first direction a or a second direction b is formed through at least one limiting block 2, and on the premise of ensuring measurement reference surfaces along the first direction a and the second direction b, a limiting jig for the side edge of glass 3 to be measured is formed by utilizing a plurality of small-size limiting blocks 2, so that the deformation problem caused by the large size is effectively avoided, and the measurement accuracy of the glass 3 to be measured is greatly improved; meanwhile, the processing difficulty of the small-size limiting block 2 is greatly reduced, and the production efficiency is correspondingly improved.

Referring to fig. 5, the base plate 1 is of a rigid structure, and at least the detection area 11 on the first surface is a flat and smooth surface, so as to ensure stable support of the glass 3 to be tested, avoid influencing the measurement result, and in this embodiment, the base plate 1 is preferably made of glass, so that the service life of the whole fixture is effectively prolonged on the premise of ensuring flatness; the detection area 11 preferably occupies a relatively central position on the first surface, and correspondingly, the installation area 12 surrounds the periphery of the detection area 11, two adjacent installation areas 12 can be arranged only in the first direction a and the second direction b, the installation areas 12 can also be arranged around the circumference of the detection area 11, and when the limiting block 2 is installed, the installation positions of the first limiting block 4 and the second limiting block 5 can be selected according to actual needs, for example, the installation positions correspond to the lower left corner, the lower right corner, the upper left corner and the upper right corner of the glass 3 to be tested. The first connecting part 13 connected with the limiting block 2 is arranged on the mounting area 12, and the detachable connection between the mounting area 12 and the limiting block 2 can be plug-in connection, clamping connection, magnetic attraction connection and the like.

The limiting block 2 is a rigid structural member and can be formed by acrylic materials but is not limited to the rigid structural member. In this embodiment, the size of the limiting block 2 is smaller, and one limiting block 2 can only correspond to a partial area of one side edge of the glass 3 to be tested, and of course, the size of the limiting block 2 can be designed and adjusted according to actual needs, for example, for a common glass 3 to be tested with smaller size, the length of the limiting block 2 can be 5cm, and for a glass 3 to be tested with larger size, the size of the limiting block 2 can also be designed to be 10cm. When the first limiting group 4 and the second limiting group 5 are formed, the number of the limiting blocks 2 can be adjusted according to actual needs, for example: referring to the state shown in fig. 4, there may be only one stopper 2 in the first limiting group 4, there may be 2 or even more than 2 stoppers 2, and correspondingly, there may be only one stopper 2 in the second limiting group 5, there may be 2 or even more than 2 stoppers 2. The limiting block 2 is obtained by profiling according to the edge of the glass 3 to be tested, and at least the fitting surface 21 on the limiting block 2 is completely profiled according to the edge of the glass 3 to be tested, and the implementation manner is easily understood by those skilled in the art and will not be described in detail herein. Correspondingly, the side, away from the bonding surface 21, of the limiting block 2 can be utilized by itself or a reference surface can be additionally arranged on the side, so that when the limiting block 2 is arranged along the first direction a or the second direction b, the adjacent limiting block 2 can be singly or cooperatively formed to serve as the reference surface of the X axis and the Y axis; in this embodiment, the side surface of the limiting block 2 is preferably utilized, that is, the limiting block 2 is integrally formed and has a third surface and a fourth surface which are opposite to each other, the third surface is a straight surface, and the fourth surface forms the bonding surface 21 through profiling design; the third surface itself or the third surface combined with other adjacent stopper 2 can form a straight reference surface in the first direction a or the second direction b, and can form reference surfaces corresponding to the X-axis and the Y-axis, providing a basis for subsequent dimension measurement.

In this embodiment, the first direction a and the second direction b are the length direction and the width direction of the base plate 1 in practice, and of course, the direction with an angle may be selected on the base plate 1 according to actual needs, so long as the first direction a and the second direction b are perpendicular to each other and can form the relative X-axis and Y-axis references.

According to the above-mentioned list, the 2D glass measurement tool that this disclosure provided sets up detection zone 11 and installation district 12 on bottom plate 1, through setting up a plurality of stopper 2 in installation district 12 detachable and form along first direction a and the limit group of second direction b, provide the spacing benchmark in first direction a and the second direction b for glass 3 to be tested, when glass 3 to be tested is arranged in detection zone 11, its side along first direction a and second direction b can be spacing laminating by a plurality of stopper 2, replace the wholeness tool structure through multistage formula stopper 2 promptly, with the length of shortening spacing tool, guarantee that the deformation possibility of stopper is all greatly reduced no matter in the processing or in-process of using, the measurement accuracy of glass 3 to be tested has effectively been guaranteed. The problem that the size of the existing integral glass measuring jig is large, deformation is easy to occur in the processing and using processes, and the measuring precision is seriously affected is effectively solved.

The term "and/or" is herein merely one kind of association relation describing the associated object, identifying three kinds of relations that may exist, e.g. a and/or B, specifically understood as: the composition may contain both a and B, and may contain a alone or B alone, and any of the above three cases may be provided.

In some embodiments, referring to fig. 1, fig. 2, and fig. 3, the 2D glass measurement jig provided in this embodiment includes at least two limiting blocks 2 in each of the first limiting group 4 and the second limiting group 5.

Specifically, in order to ensure measurement accuracy, in this embodiment, the first limiting group 4 and the second limiting group 5 are set to include at least two limiting blocks 2, so that no matter how large the size of the glass 3 to be measured is, the number of the profiling limiting blocks 2 in each direction is at least two, the size of the limiting blocks 2 is ensured to be small enough, deformation in the processing or using process due to the overlarge length is avoided, and the measurement accuracy is effectively improved.

In some embodiments, referring to fig. 1 and fig. 2, for the arrangement of at least two limiting blocks 2 in each direction or in each limiting group, in a specific implementation, at least the following two ways are provided:

first, referring to fig. 2, at least two stoppers 2 are continuously provided in a first direction a or a second direction b.

Specifically, in order to reduce the difficulty and cost of profiling manufacture of the limiting block 2, in this embodiment, a continuous distance on the edge of the glass 3 to be tested can be selected to perform profiling design, after the profiling design, a finished product is cut off or the profiling stage is directly molded in a sectional mode, so that the difficulty and complexity of profiling the different positions of the glass 3 to be tested are avoided, the cost of raw material preparation is greatly reduced, and the method is also greatly beneficial to improving the production efficiency.

Second, referring to fig. 1, at least two stoppers 2 are provided at intervals in the first direction a or the second direction b.

Specifically, in order to guarantee that spacing group is stable to the laminating of glass that awaits measuring, avoid the inaccuracy that the position inaccuracy that places of glass 3 that awaits measuring led to the fact measuring result, set up the form that the interval set up with two at least stopper 2 on first direction a and the second direction b in this embodiment, and then on the spacing 2 of stopper on every direction all can laminating two different positions that have a certain distance of a side on spacing glass 3 that awaits measuring, avoid glass 3 that awaits measuring to take place the position deflection, effectively guarantee spacing effect.

In some embodiments, referring to fig. 1 and fig. 3, in the 2D glass measurement jig provided in this embodiment, in a specific implementation, a first connection portion 13 is disposed on the installation area 12 along a first direction a and a second direction b; the stopper 2 is provided with a second connecting portion 22 adapted to the first connecting portion 13, so that the stopper 2 can be detachably connected to the mounting area 12 through the first connecting portion 13 and the second connecting portion 22.

Specifically, in order to realize the detachable connection of the limiting block 2 on the installation area 12, in this embodiment, a first connection portion 13 is disposed on the installation area 12, and correspondingly, an adaptive second connection portion 22 is disposed on the limiting block 2; the first connecting portion 13 and the second connecting portion 22 may be in a mutually inserted fit relationship, a mutually clamped fit relationship, or a mutually adsorbed fit relationship; specifically, at least two following matching forms are provided in this embodiment:

First kind: referring to fig. 1, the first connection part 13 includes a plurality of spaced positioning holes; the second connecting portion 22 includes at least two positioning posts adapted to the positioning holes, so that the limiting block 2 can be inserted into the mounting area.

Specifically, the limiting hole is formed on the bottom plate 1, and the positioning hole can penetrate through the bottom plate 1 and can only sink to a designated depth from the first surface, so long as the positioning hole can accommodate at least part of the positioning column; the shape and the size of the positioning hole are not repeated here, and can be round, rectangular, triangular and the like, so long as the positioning hole is matched with the positioning column; in the embodiment, the positioning column is inserted into the positioning hole Shi Dingwei to be in clearance fit with the inner wall 0 of the positioning hole, so that stable connection of the limiting block 2 is ensured. In this embodiment, the positioning holes in the mounting area 12 may be arranged in a row along the first direction a or the second direction b at intervals, or may be distributed in a positive array, so as to be suitable for glass 3 to be tested with different sizes. Of course, it is understood that the first connecting portion 13 may be a positioning post, and the second connecting portion 22 may be a positioning hole adapted to the positioning post.

In this arrangement, referring to fig. 1, in the 2D glass measurement jig provided in this embodiment, in a specific implementation, the positioning columns of the second connection portion 22 are at least two positioning columns, and at least two positioning columns are disposed continuously or at intervals. The two reference columns can be mutually limited in the setting mode, so that the rotary position deviation in the side lamination process of the glass to be detected 3 is avoided, and the stable setting of the limiting block 2 can be effectively ensured.

Second kind: referring to fig. 3, in some embodiments, the 2D glass measurement tool provided in this embodiment, in a specific implementation, the first connection portion 13 includes first magnetic portions that are disposed continuously or at intervals; the second connecting portion 22 is a second magnetic portion adapted to the first magnetic portion, so that the stopper 2 can be adsorbed to the mounting area 12.

Specifically, in order to facilitate installation and improve measurement efficiency, in this embodiment, the first connection portion 13 may be configured as a first magnetic portion, where the first magnetic portion may be continuously configured in one or one piece along the first direction a and the second direction b, or may be configured to have a plurality of points spaced apart from the first direction a and the second direction b, or may be configured to have a first magnetic portion in the positioning hole; correspondingly, a second magnetic part is arranged on the limiting block 2, and the second magnetic part can be in a single-point shape, can be in a form of at least two points at intervals, and can be arranged on the positioning column. The selection of the first magnetic attraction portion and the second magnetic attraction portion can be easily understood by those skilled in the art, and the description is not repeated herein, as long as the magnetic attraction force can ensure stable attraction.

Example 2

The embodiment provides a glass measurement system, which comprises a 2D glass measurement jig.

Specifically, the 2D glass measurement jig is the 2D glass measurement jig described in embodiment 1, and the specific structure and the working principle thereof refer to the detailed description of embodiment 1, and are not described herein.

Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.

Claims (10)

1. 2D glass measurement tool, its characterized in that includes:

The glass detection device comprises a bottom plate (1), wherein a detection area (11) and a mounting area (12) are arranged on a first surface of the bottom plate (1), the detection area (11) is used for supporting glass (3) to be detected, and the mounting area (12) is arranged around the detection area (11);

The device comprises a plurality of limiting blocks (2), wherein the limiting blocks (2) are detachably arranged in an installation area (12) to form a first limiting group (4) and a second limiting group (5), the first limiting group (4) is arranged along a first direction (a), a reference surface along the first direction (a) is formed on one side, away from a detection area (11), of the first limiting group (4), the second limiting group (5) is arranged along a second direction (b), and a reference surface along the second direction (b) is formed on one side, away from the detection area (11), of the second limiting group (5); a bonding surface (21) is arranged on one side, facing the detection area (11), of the limiting block (2), and the bonding surface (21) is used for bonding the side edge of the glass (3) to be detected;

Wherein the first direction (a) and the second direction (b) are perpendicular.

2. The 2D glass measurement jig of claim 1, wherein:

The first limiting group (4) and the second limiting group (5) comprise at least two limiting blocks (2).

3. The 2D glass measurement jig of claim 2, wherein:

At least two limiting blocks (2) are arranged continuously in the first direction (a) or the second direction (b).

4. The 2D glass measurement jig of claim 2, wherein:

At least two limiting blocks (2) are arranged at intervals in the first direction (a) or the second direction (b).

5. The 2D glass measurement jig of claim 1, wherein:

A first connecting part (13) is arranged on the mounting area (12) along the first direction (a) and the second direction (b);

The limiting block (2) is provided with a second connecting part (22) matched with the first connecting part (13), so that the limiting block (2) can be detachably connected to the mounting area (12) through the first connecting part (13) and the second connecting part (22).

6. The 2D glass measurement jig according to claim 5, wherein:

the first connecting part (13) comprises a plurality of positioning holes at intervals;

The second connecting part (22) comprises at least two positioning columns matched with the positioning holes, so that the limiting block (2) can be inserted into the mounting area (12).

7. The 2D glass measurement jig of claim 6, wherein:

At least two positioning columns are arranged continuously or at intervals.

8. The 2D glass measurement jig according to claim 5, wherein:

the first connecting part (13) comprises first magnetic parts which are arranged continuously or at intervals;

The second connecting part (22) is a second magnetic part matched with the first magnetic part, so that the limiting block (2) can be adsorbed on the mounting area (12).

9. The 2D glass measurement jig of claim 1, wherein:

The limiting block (2) comprises a third surface and a fourth surface which are opposite;

The third surface is a straight surface, and the fourth surface forms the fitting surface (21) through profiling design.

10. A glass measurement system, comprising:

The 2D glass measurement jig of any one of claims 1-9.