Alignment size measuring jig

Abstract

The utility model relates to an alignment size measuring jig. The jig comprises a mounting bottom plate; the blocking piece is arranged on the first surface of the mounting bottom plate in the first direction, and the blocking piece is used for abutting against a first part of the to-be-tested piece; a measuring shaft of the digital micrometer penetrates through the blocking piece, extends out and is located above the first surface, and the measuring shaft is used for abutting against a second component of the to-be-measured piece so that the digital micrometer can measure the distance between the edge of the first component and the edge of the second component; and the clamping assembly is arranged on the side surface of the blocking piece and clamps the mounting shaft of the digital micrometer so as to fix the digital micrometer on the blocking piece. Thus, the digital micrometer can measure the distance between the first component and the second component according to the moving distance of the measuring shaft so as to measure the alignment size of the first component and the second component, the accuracy of the measuring result is ensured, meanwhile, the to-be-measured piece is not scratched, the quality of the to-be-measured piece is ensured, the testing operation is convenient, and the testing efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of test fixtures, and particularly to a positioning dimension measuring fixture. Background Art

[0002] A test fixture belongs to a category under fixtures and is a fixture specifically used to test the functions, power calibration, lifespan, performance, etc. of products. Since it is mainly used for testing various indicators of products on the production line, it is called a test fixture.

[0003] A display screen is disposed on a cover glass to form a screen. Generally, it is necessary to limit the installation position of the display screen on the cover glass. After the display screen is disposed on the cover glass, there is a predetermined distance between the display screen and the four peripheral edges of the cover glass to ensure accurate installation position.

[0004] Currently, a caliper / vernier caliper / digital caliper, etc. is often directly clamped on this distance for measurement. However, the use of a general caliper will scratch the display screen and the cover glass, affecting the quality of the screen, and at the same time, it will also affect the accuracy of the measurement result. Summary of the Invention

[0005] Based on this, in view of the problem that when using a caliper / vernier caliper / digital caliper, etc. to measure the distance, the measured part is scratched and the accuracy of the test result is affected, it is necessary to provide a positioning dimension measuring fixture, which can ensure the measurement accuracy of the positioning dimension, thereby ensuring the accuracy of the measurement result. At the same time, it will not scratch the measured part, ensuring the quality of the measured part, and facilitating the test operation, improving the test efficiency.

[0006] A positioning dimension measuring fixture includes:

[0007] An installation base plate;

[0008] A blocking member is disposed on the first surface of the installation base plate along a first direction, and the blocking member is used to abut against a first component of the measured part;

[0009] A digital micrometer, the measuring shaft of the digital micrometer passes through the blocking member and extends above the first surface, and the measuring shaft is used to abut against a second component of the measured part, so that the digital micrometer can measure the distance between the edge of the first component and the edge of the second component; and

[0010] A clamping assembly is disposed on the side of the blocking member and clamps the installation shaft of the digital micrometer to fix the digital micrometer to the blocking member.

[0011] In an embodiment of the present application, the alignment dimension measuring fixture further includes a plurality of first fasteners. The blocking member has a plurality of first fastening holes, and the mounting base plate has a plurality of second fastening holes corresponding to the first fastening holes;

[0012] The first fasteners are installed in the second fastening holes through the first fastening holes to fix the blocking member to the mounting base plate.

[0013] In an embodiment of the present application, the mounting base plate has a mounting groove. The blocking member is partially disposed in the mounting groove and protrudes from the first surface;

[0014] And / or, the blocking member is located at the edge of the mounting base plate;

[0015] And / or, the mounting base plate has an avoidance groove. The avoidance groove is located on the first surface and on the side of the blocking member. The avoidance groove is used to avoid the clamping assembly;

[0016] And / or, the length of the blocking member is adapted to the dimension of the mounting base plate along the first direction.

[0017] In an embodiment of the present application, the clamping assembly includes a first clamping portion and a second clamping portion. The first clamping portion is disposed on the blocking member, and the second clamping portion is disposed on the first clamping portion. The first clamping portion and the second clamping portion clamp the mounting shaft of the digital micrometer so that the measuring shaft passes through the blocking member and extends out.

[0018] In an embodiment of the present application, the first clamping portion has a first opening. The first opening penetrates along a second direction perpendicular to the first direction, and the first opening also penetrates to the second clamping portion along a third direction perpendicular to the first direction and the second direction;

[0019] The second clamping portion has an abutting surface. The mounting shaft is located in the first opening. After the second clamping portion is fixed to the first clamping portion, the abutting surface abuts against the outer wall of the mounting shaft.

[0020] In an embodiment of the present application, the first clamping portion has a receiving groove. The receiving groove is located in the radial direction of the first opening and is recessed from the surface of the first clamping portion. At least a part of the second clamping portion is located in the receiving groove;

[0021] And / or, the abutting surface is an arc surface, and the first opening is arranged in a U shape.

[0022] In an embodiment of the present application, the clamping assembly includes a second fastener. The first clamping portion has a third fastening hole, and the second clamping portion has a fourth fastening hole;

[0023] The second fastening member passes through the fourth fastening hole and is installed in the third fastening hole to fix the second clamping portion to the first clamping portion.

[0024] In one embodiment of the present application, the clamping assembly includes a third fastener, the first clamping portion has a fifth fastening hole, and the side surface of the blocking member has a sixth fastening hole;

[0025] The third fastener passes through the fifth fastening hole and is installed in the sixth fastening hole to fix the first clamping portion to the blocking member;

[0026] The third fastening hole is an oblong hole and extends along the third direction; the first clamping portion can move along the third direction through the cooperation between the fifth fastening hole and the third fastener to adjust the distance between the measuring axis and the first surface.

[0027] In one embodiment of the present application, the blocking member has a second opening, the second opening penetrates the blocking member along the second direction, and is coaxially arranged with the first opening;

[0028] The second opening also penetrates through a surface of the blocking member facing away from the mounting base along the third direction.

[0029] In one embodiment of the present application, the alignment dimension measuring jig further includes an anti-slip member, and the anti-slip member is disposed on the second surface of the mounting base plate;

[0030] The anti-slip member includes a plurality of rubber pads, and the plurality of rubber pads are distributed on the second surface at intervals.

[0031] After adopting the above technical solution, this application also has the following technical effects:

[0032] The alignment dimension measuring jig of the present application has a blocking member disposed on the first surface of the mounting base plate along a first direction, and a clamping assembly disposed on the side of the blocking member, and the clamping assembly can clamp the mounting shaft of the digital micrometer to fix the digital micrometer to the blocking member. Moreover, the measuring shaft of the digital micrometer extends through the blocking member and is located above the first surface. When measuring the alignment dimension of the workpiece to be measured, the workpiece to be measured is placed on the mounting base plate, and the edge of the first component of the workpiece to be measured is made to fit the blocking member along the second direction, and at the same time, the second component can abut the end of the measuring shaft, and the distance between the edge of the first component and the edge of the second component can be measured by the measuring shaft of the digital micrometer.

[0033] For the alignment dimension measurement fixture, a stopper is used to fit against the edge of the first component of the component to be measured to limit the first component. After a clamping assembly is used to clamp and fix a digital micrometer to the stopper, the measuring shaft of the digital micrometer can abut against the edge of the second component of the component to be measured. In this way, the digital micrometer can measure the distance between the first component and the second component according to the distance that the measuring shaft moves, so as to measure the alignment dimension between the first component and the second component, and thus it can be judged whether the installation of the first component and the second component is in place. At the same time, the alignment dimension measurement fixture can ensure the measurement accuracy of the alignment dimension through the cooperation of the stopper and the digital micrometer, ensure the accuracy of the measurement result, and at the same time will not scratch the component to be measured, ensure the quality of the component to be measured, and facilitate the test operation and improve the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 FIG. 6 is a perspective view of an alignment dimension measurement fixture according to an embodiment of the present application.

[0035] Figure 2 FIG. Figure 1 12 is a partial schematic view showing the cooperation between the alignment dimension measurement fixture shown in FIG. 11 and the component to be measured.

[0036] Figure 3 FIG. Figure 1 18 is a schematic view of a mounting base plate in the alignment dimension measurement fixture shown in FIG. 17.

[0037] Figure 4 FIG. Figure 3 24 is a side view of the mounting base plate shown in FIG. 23.

[0038] Figure 5 FIG. Figure 1 30 is a perspective view of a stopper in the alignment dimension measurement fixture shown in FIG. 29.

[0039] Figure 6 FIG. Figure 5 36 is a schematic view of the stopper shown in FIG. 35.

[0040] Figure 7 FIG. Figure 1 42 is a perspective view of a first clamping part in the alignment dimension measurement fixture shown in FIG. 41.

[0041] Figure 8 FIG. Figure 7 48 is a schematic view of the first clamping part shown in FIG. 47.

[0042] Figure 9 FIG. Figure 1 54 is a perspective view of a second clamping part in the alignment dimension measurement fixture shown in FIG. 53.

[0043] Figure 10 FIG. Figure 9 60 is a schematic view of the second clamping part shown in FIG. 59.

[0044] Wherein: 100, alignment dimension measuring jig; 110, mounting base plate; 111, first surface; 112, second surface; 113, mounting groove; 114, second fastening hole; 115, relief groove; 120, blocking member; 121, first fastening hole; 122, second opening; 123, sixth fastening hole; 130, digital micrometer; 131, measuring shaft; 140, clamping assembly; 141, first clamping portion; 1411, first opening; 1412, receiving groove; 1413, third fastening hole; 1414, fifth fastening hole; 142, second clamping portion; 1421, abutting surface; 1422, fourth fastening hole; 143, third fastener; 150, rubber pad; 200, workpiece to be measured; 210, first component; 220, second component. Detailed implementation manners

[0045] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0046] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0047] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0051] See Figure 1 and Figure 2 , this application provides a registration dimension measurement fixture 100. Figure 1 is a perspective view of the registration dimension measurement fixture 100 according to an embodiment of this application, Figure 2 is Figure 1 a partial schematic view of the registration dimension measurement fixture 100 shown in cooperation with a workpiece 200 to be measured. The registration dimension measurement fixture 100 is used to measure the registration installation dimensions of the workpiece 200 to be measured. It can be understood that the workpiece 200 to be measured includes a first component 210 and a second component 220, the second component 220 is disposed on one surface of the first component 210, and there is a preset distance between at least one edge of the second component 220 and the corresponding edge of the first component 210. The registration dimension measurement fixture 100 can measure whether this preset distance is accurate, so as to judge whether the installation position of the second component 220 on the first component 210 is accurate.

[0052] Exemplarily, the workpiece 200 to be measured is a screen, which includes a display screen and a cover glass. The display screen is disposed behind the cover glass, and there is a predetermined spacing between the four peripheral edges of the display screen and the cover glass to ensure the accuracy of the assembly of the display screen and the cover glass, thereby ensuring the screen alignment. Of course, in other embodiments of the present application, the workpiece 200 to be measured may also be other two components that need to ensure the edge mounting position. The present application only takes the workpiece 200 including the first component 210 and the second component 220 as an example to illustrate the assembly of the display screen and the cover glass, and will not be elaborated hereinafter.

[0053] It can be understood that the display screen is disposed behind the cover glass, and there is a predetermined spacing between the four peripheral edges of the display screen and the cover glass. Currently, a caliper / vernier caliper / digital caliper, etc. is often used to directly clamp on this spacing for measurement. However, the use of a general caliper will scratch the display screen and the cover glass, affecting the quality of the screen, and at the same time, it will also affect the accuracy of the measurement result. For this reason, the present application provides a new type of alignment dimension measuring fixture 100, which can ensure the measurement accuracy of the alignment dimension, thereby ensuring the accuracy of the measurement result. At the same time, it will not scratch the workpiece 200 to be measured, ensure the quality of the workpiece 200, and facilitate the test operation, improving the test efficiency. The following introduces the specific structure of the alignment dimension measuring fixture 100 in an embodiment.

[0054] See Figures 1 to 3 , in an embodiment, the alignment dimension measuring fixture 100 includes a mounting base plate 110, a blocking member 120, a digital micrometer 130, and a clamping assembly 140. The blocking member 120 is disposed on the first surface 111 of the mounting base plate 110 along a first direction. The blocking member 120 is used to abut against the first component 210 of the workpiece 200 to be measured. The measuring shaft 131 of the digital micrometer 130 passes through the blocking member 120 and extends above the first surface 111. The measuring shaft 131 is used to abut against the second component 220 of the workpiece 200 to be measured, so that the digital micrometer 130 can measure the distance between the edge of the first component 210 and the edge of the second component 220. The clamping assembly 140 is disposed on the side of the blocking member 120 and clamps the mounting shaft of the digital micrometer 130 to fix the digital micrometer 130 to the blocking member 120. Figure 3 For Figure 1 the schematic diagram of the mounting base plate 110 in the alignment dimension measuring fixture 100 shown.

[0055] The mounting base plate 110 is the base plate of the entire alignment dimension measuring jig 100, which is used to carry each component of the alignment dimension measuring jig 100, so that the alignment dimension measuring jig 100 forms an integral structure. Moreover, the mounting base plate 110 can also carry the workpiece 200 to be measured, and the workpiece 200 to be measured is placed on the mounting base plate 110 for alignment dimension measurement. Optionally, the area of the mounting base plate 110 is slightly larger than the area of the workpiece 200 to be measured. In this way, while effectively measuring the alignment dimensions of the workpiece 200 to be measured, the occupied area of the alignment dimension measuring jig 100 can be reduced, which is convenient for operation and use, and thus facilitates the subsequent measurement operation.

[0056] As Figure 1 shown, the mounting base plate 110 extends along the first direction, the second direction, and the third direction. The first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction. The mounting base plate 110 extends along the first direction and the second direction and is arranged in a flat plate shape to form a base plate. The mounting base plate 110 can also extend along the third direction so that the mounting base plate 110 has a certain thickness dimension to ensure the structural strength of the mounting base plate 110. Optionally, the mounting base plate 110 is an aluminum alloy plate. Optionally, the mounting base plate 110 is treated with hard anodization.

[0057] As Figure 3 and Figure 4 shown, the mounting base plate 110 has a first surface 111 and a second surface 112 facing away from each other. The first surface 111 and the second surface 112 are surfaces along the first direction and the second direction. The blocking member 120 is provided on the first surface 111 of the mounting base plate 110 and extends along the first direction. Moreover, the blocking member 120 protrudes from the first surface 111. The digital micrometer 130 is a measuring instrument for realizing the measurement of alignment dimensions. The digital micrometer 130 is located above the first surface 111, and the digital micrometer 130 is arranged along the second direction. Figure 4 For Figure 3 the side view of the mounting base plate 110 shown.

[0058] It can be understood that the digital micrometer 130 has a display body, a mounting shaft, and a measuring shaft 131. The mounting shaft is fixedly provided on the outer wall of the display body, and the measuring shaft 131 is movably provided in the mounting shaft and extends out of the mounting shaft. When the measuring shaft 131 moves, the display body can display the measurement data, so as to realize functions such as thickness measurement / range measurement of the digital micrometer 130. It should be noted that the structure and measurement principle of the digital micrometer 130 are prior art, and the mounting shaft and the measuring shaft 131 of the digital micrometer 130 are introduced in this application for description.

[0059] The digital micrometer 130 is installed on the side of the stopper 120. The installation shaft and the measuring shaft 131 extend in the second direction, and the measuring shaft 131 can extend through the stopper 120 and be located above the first surface 111. The clamping assembly 140 is used to fixedly install the digital micrometer 130. The clamping assembly 140 is arranged on the side of the stopper 120. The clamping assembly 140 can clamp the installation shaft of the digital micrometer 130 to fix the digital micrometer 130 to the stopper 120, ensuring that the digital micrometer 130 is reliably fixed to the stopper 120 and preventing the digital micrometer 130 from moving during the measurement process, so as to ensure the accuracy of the measurement result.

[0060] When using the alignment dimension measuring jig 100 of the present application to measure the alignment dimension of the workpiece 200 to be measured, the workpiece 200 to be measured is placed on the installation base plate 110, and the position of the workpiece 200 to be measured is adjusted so that the stopper 120 can abut against the edge of the first component 210 of the workpiece 200 to be measured. During this process, the edge of the second component 220 can press against the end of the measuring shaft 131 of the digital micrometer 130. That is, by the stopper 120 abutting against the edge of the first component 210 of the workpiece 200 to be measured and the measuring shaft 131 abutting against the edge of the second component 220 of the workpiece 200 to be measured, in this way, the digital micrometer 130 can measure the distance between the edge of the first component 210 and the edge of the second component 220 to realize the measurement of the alignment dimension between the first component 210 and the second component 220.

[0061] For the alignment dimension measuring jig 100 of the above embodiment, the stopper 120 is used to fit against the edge of the first component 210 of the workpiece 200 to be measured to limit the first component 210. After the clamping assembly 140 clamps and fixes the digital micrometer 130 to the stopper 120, the measuring shaft 131 of the digital micrometer 130 can abut against the edge of the second component 220 of the workpiece 200 to be measured. In this way, the digital micrometer 130 can measure the distance between the first component 210 and the second component 220 according to the moving distance of the measuring shaft 131 to measure the alignment dimension between the first component 210 and the second component 220, so as to judge whether the installation of the first component 210 and the second component 220 is in place. At the same time, the alignment dimension measuring jig 100 can ensure the measurement accuracy of the alignment dimension through the cooperation of the stopper 120 and the digital micrometer 130, ensure the accuracy of the measurement result, and at the same time will not scratch the workpiece 200 to be measured, ensure the quality of the workpiece 200 to be measured, and facilitate the test operation and improve the test efficiency.

[0062] See Figure 4, in one embodiment, the alignment dimension measuring fixture 100 further includes an anti-slip member disposed on the second surface 112 of the mounting base plate 110. That is to say, the anti-slip member is disposed on the back surface / bottom surface of the mounting base plate 110. When the alignment dimension measuring fixture 100 is placed on a table surface such as a test table surface or other platform surface, etc., the anti-slip member can play an anti-slip role to prevent the mounting base plate 110 from slipping on the table surface, so as to ensure the position fixation of the alignment dimension measuring fixture 100, avoid affecting the measurement accuracy, and ensure the accuracy of the measurement result.

[0063] See Figure 4 , in one embodiment, the anti-slip member includes a plurality of rubber pads 150, and the plurality of rubber pads 150 are spaced apart and distributed on the second surface 112. The plurality of rubber pads 150 protrude from the second surface 112, and the rubber pads 150 contact the table surface to play an anti-slip role. Optionally, the rubber pads 150 are arranged in a conical shape. Of course, in other embodiments of the present application, the rubber pads 150 can also be cylindrical or other shapes, as long as they can play an anti-slip role.

[0064] Optionally, the number of the rubber pads 150 is four, and the four rubber pads 150 are located at the four feet of the quadrilateral to stably support the mounting base plate 110. Of course, in other embodiments of the present application, the number of the rubber pads 150 can also be other numbers, as long as they can achieve stable support and play an anti-slip role. Of course, in other embodiments of the present application, the anti-slip member can also be an anti-slip rib, a nylon pad or other components, as long as they can play an anti-slip role.

[0065] See Figures 1 to 3 、 Figure 5 and Figure 6 , in one embodiment, the blocking member 120 is a blocking strip, and the length of the blocking member 120 is adapted to the dimension of the mounting base plate 110 along the first direction. Figure 5 is Figure 1 the three-dimensional view of the blocking member 120 in the alignment dimension measuring fixture 100 shown in Figure 6 is Figure 5 the schematic diagram of the blocking member 120 shown in

[0066] See Figures 1 to 4, in one embodiment, the mounting base plate 110 has a mounting groove 113. The blocking member 120 is partially disposed in the mounting groove 113 and protrudes from the first surface 111. The mounting groove 113 is disposed on the first surface 111 of the mounting base plate 110 and is recessed from the first surface 111 of the mounting base plate 110. The bottom of the blocking member 120 is fixedly disposed in the mounting groove 113, and the top of the blocking member 120 protrudes from the first surface 111 of the mounting base plate 110. In this way, the blocking member 120 can block the first component 210 of the component under test 200 to achieve the limit of the first component 210, facilitating the alignment dimension measurement of the component under test 200 in the future.

[0067] See Figures 1 to 4 , in one embodiment, the blocking member 120 is located at the edge of the mounting base plate 110. As Figure 1 and Figure 4 shown, the blocking member 120 is located at the upper edge of the mounting base plate 110. In this way, the surface of the mounting base plate 110 can carry the component under test 200, improving the space utilization rate of the mounting base plate 110 and allowing the alignment dimension measurement of a component under test 200 with a larger size.

[0068] See Figure 1 , Figure 3 , Figure 5 and Figure 6 , in one embodiment, the alignment dimension measurement jig 100 further includes a plurality of first fasteners. The blocking member 120 has a plurality of first fastening holes 121, and the mounting base plate 110 has a plurality of second fastening holes 114 corresponding to the first fastening holes 121. The first fasteners are installed in the second fastening holes 114 through the first fastening holes 121 to fix the blocking member 120 to the mounting base plate 110.

[0069] The number of the first fastening holes 121 is equal to that of the second fastening holes 114 and they are correspondingly arranged. In this way, the first fasteners can be installed into the second fastening holes 114 through the first fastening holes 121 to reliably fix the blocking member 120 to the mounting base plate 110. Optionally, the number of the first fasteners, the first fastening holes 121 and the second fastening holes 114 is four. Of course, in other embodiments of the present application, the number of the first fasteners, the first fastening holes 121 and the second fastening holes 114 can also be other numbers, as long as it is ensured that the first fasteners can reliably fix the blocking member 120 to the mounting base plate 110 through the cooperation with the first fastening holes 121 and the second fastening holes 114.

[0070] Optionally, the first fastener is a threaded member, and the first fastening hole 121 and the second fastening hole 114 are threaded holes. Of course, in other embodiments of the present application, the first fastener may also be a pin, the first fastening hole 121 and the second fastening hole 114 are pin holes and are in interference fit with the pin, or the first fastener is a clamping member, the first fastening hole 121 and the second fastening hole 114 are clamping grooves, and the clamping member can be clamped into the clamping groove, so that the blocking member 120 can be fixed to the mounting base plate 110.

[0071] See Figure 1 and Figure 3 , in an embodiment, the mounting base plate 110 has an avoidance groove 115, the avoidance groove 115 is located on the first surface 111 and on the side of the blocking member 120, and the avoidance groove 115 is used to avoid the clamping assembly 140. The avoidance groove 115 is located at the edge of the mounting base plate 110 and is arranged along the third direction. The avoidance groove 115 is a notch at the upper edge of the mounting base plate 110 and communicates with the mounting groove 113. After the clamping assembly 140 is installed on the blocking member 120, the clamping assembly 140 can be located in the avoidance groove 115, and the avoidance groove 115 is used to accommodate the clamping assembly 140 to ensure that the clamping assembly 140 is accurately installed on the blocking member 120.

[0072] Optionally, the avoidance groove 115 is located in the middle area of the mounting base plate 110. That is to say, the dimension of the avoidance groove 115 along the first direction is smaller than the dimension of the mounting base plate 110 along the first direction. In this way, a side wall can be formed on one side of the mounting groove 113 for the clamping assembly 140 to block the blocking member 120.

[0073] See Figure 1 , Figures 7 to 10 , in an embodiment, the clamping assembly 140 includes a first clamping portion 141 and a second clamping portion 142. The first clamping portion 141 is arranged on the blocking member 120, the second clamping portion 142 is arranged on the first clamping portion 141, and the first clamping portion 141 and the second clamping portion 142 clamp the mounting shaft of the digital micrometer 130 so that the measuring shaft 131 passes through the blocking member 120 and extends out. Figure 7 is Figure 1 the three-dimensional view of the first clamping portion 141 in the alignment dimension measuring jig 100 shown, Figure 8 is Figure 7 the schematic diagram of the first clamping portion 141 shown, Figure 9 is Figure 1 the three-dimensional view of the second clamping portion 142 in the alignment dimension measuring jig 100 shown, Figure 10 is Figure 9 the schematic diagram of the second clamping portion 142 shown.

[0074] The clamping assembly 140 is divided into two parts, namely the first clamping part 141 and the second clamping part 142. The first clamping part 141 is arranged on the side of the blocking part 120, and the second clamping part 142 is fixed to the first clamping part 141. In this way, after the first clamping part 141 and the second clamping part 142 are assembled, they can clamp the mounting shaft of the digital micrometer 130 to reliably fix the digital micrometer 130 to the blocking part 120. That is to say, the first clamping part 141 and the second clamping part 142 abut against the outer wall of the mounting shaft on both sides of the mounting shaft to realize the clamping and fixing of the mounting shaft.

[0075] See Figure 1 , Figures 7 to 10 , in one embodiment, the first clamping part 141 has a first opening 1411 which penetrates along a second direction perpendicular to the first direction, and the first opening 1411 also penetrates along a third direction perpendicular to both the first direction and the second direction to the second clamping part 142. The second clamping part 142 has an abutting surface 1421. The mounting shaft is located in the first opening 1411. After the second clamping part 142 is fixed to the first clamping part 141, the abutting surface 1421 abuts against the outer wall of the mounting shaft.

[0076] That is to say, the first opening 1411 penetrates the first clamping part 141 along the second direction, and the first opening 1411 also penetrates the top of the first clamping part 141 along the third direction. The second clamping part 142 has an abutting surface 1421. After the mounting shaft is installed in the first opening 1411, the second clamping part 142 can extend into the first opening 1411 so that the abutting surface 1421 abuts against the outer wall of the mounting shaft. In this way, through the cooperation of the inner wall of the first opening 1411 and the abutting surface 1421, the reliable fixing of the mounting shaft can be realized.

[0077] Of course, in other embodiments of the present application, the first clamping part 141 and the second clamping part 142 can also be of a symmetrically arranged structural form. The first clamping part 141 has a first partial hole, and the second clamping part 142 has a second partial hole. After the second clamping part 142 is installed on the first clamping part 141, the first partial hole and the second partial hole are aligned to form a complete fixing hole to clamp and fix the mounting shaft.

[0078] See Figure 1 , Figures 7 to 10 , in one embodiment, the abutting surface 1421 is an arc surface, and the first opening 1411 is arranged in a U shape. The inner wall of the U shape and the arc surface can fit the outer wall of the mounting shaft to realize the reliable fixing of the mounting shaft and prevent the mounting shaft from moving.

[0079] See Figure 1 , Figures 7 to 10, in one embodiment, the first clamping portion 141 has a receiving groove 1412, the receiving groove 1412 is located radially of the first opening 1411 and is recessed from the surface of the first clamping portion 141, and at least a part of the second clamping portion 142 is located in the receiving groove 1412.

[0080] That is to say, the upper surface of the first clamping portion 141 has a recessed receiving groove 1412, the receiving groove 1412 communicates with the first opening 1411 to form a stepped structure, and the second clamping portion 142 can be located in the receiving groove 1412 and then extend into the first opening 1411 to cooperate with the first clamping portion 141 to clamp and fix the mounting shaft.

[0081] See Figure 1 、 Figures 7 to 10 , in one embodiment, the clamping assembly 140 includes a second fastener, the first clamping portion 141 has a third fastening hole 1413, and the second clamping portion 142 has a fourth fastening hole 1422. The second fastener is installed in the third fastening hole 1413 through the fourth fastening hole 1422 to fix the second clamping portion 142 to the first clamping portion 141.

[0082] The number of the third fastening holes 1413 is equal to that of the fourth fastening holes 1422 and they are correspondingly arranged. In this way, the second fastener can be installed into the third fastening hole 1413 through the fourth fastening hole 1422 to reliably fix the second clamping portion 142 to the first clamping portion 141, so that the first clamping portion 141 and the second clamping portion 142 can reliably clamp the mounting shaft to realize the reliable fixation of the digital micrometer 130.

[0083] Optionally, the number of the second fastener, the third fastening hole 1413 and the fourth fastening hole 1422 is two. Of course, in other embodiments of the present application, the number of the second fastener, the third fastening hole 1413 and the fourth fastening hole 1422 can also be other numbers, as long as it is ensured that the second fastener can reliably fix the second clamping portion 142 to the first clamping portion 141 through the cooperation with the third fastening hole 1413 and the fourth fastening hole 1422.

[0084] Optionally, the second fastener is a threaded member, and the third fastening hole 1413 and the fourth fastening hole 1422 are threaded holes. Of course, in other embodiments of the present application, the second fastener can also be a pin, the third fastening hole 1413 and the fourth fastening hole 1422 are pin holes and are in interference fit with the pin, or the second fastener is a clamping member, the third fastening hole 1413 and the fourth fastening hole 1422 are clamping grooves, and the clamping member can be clamped into the clamping grooves, so that the second clamping portion 142 can also be fixed to the first clamping portion 141.

[0085] See Figure 1 、 Figure 7 andFigure 8 In one embodiment, the clamping assembly 140 includes a third fastener 143. The first clamping portion 141 has a fifth fastening hole 1414, and the side surface of the blocking member 120 has a sixth fastening hole 123. The third fastener 143 is installed in the sixth fastening hole 123 through the fifth fastening hole 1414 to fix the first clamping portion 141 to the blocking member 120. The number of the fifth fastening holes 1414 is equal to that of the sixth fastening holes 123 and they are correspondingly arranged. In this way, the third fastener 143 can be installed into the sixth fastening hole 123 through the fifth fastening hole 1414 to reliably fix the first clamping portion 141 to the blocking member 120, so that the digital micrometer 130 is reliably fixed to the blocking member 120.

[0086] Optionally, the number of the third fastener 143, the fifth fastening hole 1414, and the sixth fastening hole 123 is two. Of course, in other embodiments of the present application, the number of the third fastener 143, the fifth fastening hole 1414, and the sixth fastening hole 123 may also be other numbers, as long as it is ensured that the third fastener 143 can reliably fix the first clamping portion 141 to the blocking member 120 through the cooperation with the fifth fastening hole 1414 and the sixth fastening hole 123.

[0087] Optionally, the third fastener 143 is a threaded member, and the fifth fastening hole 1414 and the sixth fastening hole 123 are threaded holes. Of course, in other embodiments of the present application, the third fastener 143 may also be a pin, the fifth fastening hole 1414 and the sixth fastening hole 123 are pin holes and are in interference fit with the pin, or the third fastener 143 is a clamping member, the fifth fastening hole 1414 and the sixth fastening hole 123 are clamping grooves, and the clamping member can be clamped into the clamping grooves. In this way, the first clamping portion 141 can also be fixed to the blocking member 120.

[0088] See Figure 1 、 Figure 7 and Figure 8 In one embodiment, the fifth fastening hole 1414 is an oblong hole and extends along the third direction. The first clamping portion 141 can move along the third direction through the cooperation of the fifth fastening hole 1414 and the third fastener 143 to adjust the distance between the measuring shaft 131 and the first surface 111.

[0089] That is to say, the third fastening hole 1413 has a certain dimension in the third direction. The first clamping portion 141 can move along the third direction along the second fastener through the third fastening hole 1413. Furthermore, the first clamping portion 141 drives the second clamping portion 142 and the digital micrometer 130 to move along the third direction, so that the height of the measuring shaft 131 in the third direction can be adjusted, so that the measuring shaft 131 can abut against the second component 220 with different heights.

[0090] When the height dimension of the second component 220 in the third direction is small, the first clamping portion 141 can move in the third direction toward the mounting base plate 110, and drive the second clamping portion 142 and the digital micrometer 130 to move synchronously, so as to reduce the distance between the measuring shaft 131 and the first surface 111. When the height dimension of the second component 220 in the third direction is large, the first clamping portion 141 can move in the third direction away from the mounting base plate 110, and drive the second clamping portion 142 and the digital micrometer 130 to move synchronously, so as to increase the distance between the measuring shaft 131 and the first surface 111.

[0091] When there are chamfers, depressions, protrusions or other structures at the position of the second component 220 corresponding to the measuring shaft 131, which affect the measurement of the alignment dimension, the position of the measuring shaft 131 in the third direction can be adjusted through the above directions, so that the measuring shaft 131 can avoid the above structures, thereby ensuring the accuracy of the measurement result.

[0092] See Figure 5 and Figure 6 In an embodiment, the blocking member 120 has a second opening 122. The second opening 122 penetrates the blocking member 120 in the second direction and is coaxially arranged with the first opening 1411. The second opening 122 also penetrates the surface of the blocking member 120 facing away from the mounting base plate 110 in the third direction.

[0093] The second opening 122 can allow the measuring shaft 131 to pass through, and it will not affect the movement of the measuring shaft 131, so as to ensure the accuracy of the measurement result of the digital micrometer 130. Exemplarily, the second opening 122 is arranged in a U shape and corresponds to the first opening 1411. Of course, in other embodiments of the present application, the second opening 122 may also be an oblong hole.

[0094] For the alignment dimension measuring fixture 100 of the present application, the blocking member 120 is used to fit the edge of the first component 210 of the workpiece 200 to limit the first component 210. After the clamping assembly 140 clamps and fixes the digital micrometer 130 to the blocking member 120, the measuring shaft 131 of the digital micrometer 130 can abut against the edge of the second component 220 of the workpiece 200. In this way, the digital micrometer 130 can measure the distance between the first component 210 and the second component 220 according to the moving distance of the measuring shaft 131, so as to measure the alignment dimension between the first component 210 and the second component 220, and thus can judge whether the installation of the first component 210 and the second component 220 is in place.

[0095] Meanwhile, the alignment dimension measuring fixture 100 can ensure the measurement accuracy of the alignment dimension through the cooperation of the blocking member 120 and the digital micrometer 130, guarantee the accuracy of the measurement result, and at the same time, it will not scratch the workpiece 200 to be measured, ensure the quality of the workpiece 200 to be measured, facilitate the test operation, improve the test efficiency, and will not damage the digital micrometer 130. Moreover, the alignment dimension measuring fixture 100 is made of aluminum alloy, does not need to be frequently maintained, reduces the maintenance time and wear and tear during use. The surface of the alignment dimension measuring fixture is polished smoothly to avoid burrs or knife marks, so as to avoid scratching the workpiece 200 to be measured.

[0096] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0097] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A positioning dimension measuring jig, characterized in that: include: Install the base plate; A blocking member, arranged on the first surface of the mounting base plate along a first direction, the blocking member being used to abut against the first component of the test piece; a digital micrometer, wherein a measuring axis of the digital micrometer extends through the blocking member and is located above the first surface, the measuring axis being used to abut against a second component of the workpiece to be measured so that the digital micrometer can measure a distance between an edge of the first component and an edge of the second component; as well as The clamping assembly is arranged on the side of the blocking member and clamps the mounting shaft of the digital micrometer to fix the digital micrometer to the blocking member.

2. The alignment dimension measuring jig according to claim 1, characterized in that: The alignment dimension measuring jig further comprises a plurality of first fasteners, the blocking member has a plurality of first fastening holes, and the mounting base plate has a plurality of second fastening holes corresponding to the first fastening holes; The first fastening member passes through the first fastening hole and is installed in the second fastening hole to fix the blocking member to the installation base plate.

3. The alignment dimension measuring jig according to claim 1, characterized in that: The mounting base plate has a mounting groove, and the blocking member is partially disposed in the mounting groove and protrudes from the first surface; and / or, the blocking member is located at an edge of the mounting base plate; And / or, the mounting base plate has an avoidance groove, the avoidance groove is located on the first surface and on the side of the blocking member, and the avoidance groove is used to avoid the clamping assembly; And / or, the length of the blocking member is matched to the dimension of the mounting base along the first direction.

4. The alignment dimension measuring jig according to any one of claims 1 to 3, characterized in that: The clamping assembly includes a first clamping portion and a second clamping portion, wherein the first clamping portion is arranged on the blocking member, and the second clamping portion is arranged on the first clamping portion, and the first clamping portion and the second clamping portion clamp the mounting shaft of the digital micrometer so that the measuring shaft extends through the blocking member.

5. The alignment dimension measuring jig according to claim 4, characterized in that: The first clamping portion has a first opening, the first opening penetrates along a second direction perpendicular to the first direction, and the first opening also penetrates to the second clamping portion along a third direction perpendicular to the first direction and the second direction; The second clamping portion has a contact surface, the installation shaft is located in the first opening, and after the second clamping portion is fixed to the first clamping portion, the contact surface contacts the outer wall of the installation shaft.

6. The alignment dimension measuring jig according to claim 5, characterized in that: The first clamping portion has a receiving groove, the receiving groove is located in the radial direction of the first opening and is recessed in the surface of the first clamping portion, and the second clamping portion is at least partially located in the receiving groove; And / or, the abutting surface is an arc-shaped surface, and the first opening is arranged in a U shape.

7. The alignment dimension measuring jig according to claim 5, characterized in that: The clamping assembly comprises a second fastener, the first clamping portion has a third fastening hole, and the second clamping portion has a fourth fastening hole; The second fastening member passes through the fourth fastening hole and is installed in the third fastening hole to fix the second clamping portion to the first clamping portion.

8. The alignment dimension measuring jig according to claim 7, characterized in that: The clamping assembly comprises a third fastener, the first clamping portion has a fifth fastening hole, and the side surface of the blocking member has a sixth fastening hole; The third fastener passes through the fifth fastening hole and is installed in the sixth fastening hole to fix the first clamping portion to the blocking member; The third fastening hole is an oblong hole and extends along the third direction; the first clamping portion can move along the third direction through the cooperation between the fifth fastening hole and the third fastener to adjust the distance between the measuring axis and the first surface.

9. The alignment dimension measuring jig according to claim 5, characterized in that: The blocking member has a second opening, the second opening penetrates the blocking member along the second direction and is coaxially arranged with the first opening; The second opening also penetrates through a surface of the blocking member facing away from the mounting base along the third direction.

10. The alignment dimension measuring jig according to any one of claims 1 to 3, characterized in that: The alignment dimension measuring jig further comprises an anti-slip member, and the anti-slip member is arranged on the second surface of the mounting base plate; The anti-slip member includes a plurality of rubber pads, and the plurality of rubber pads are distributed on the second surface at intervals.

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