CN221037292U - Tool fixture for measuring curved surface fingerprint module size - Google Patents
Tool fixture for measuring curved surface fingerprint module size Download PDFInfo
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- CN221037292U CN221037292U CN202322800406.5U CN202322800406U CN221037292U CN 221037292 U CN221037292 U CN 221037292U CN 202322800406 U CN202322800406 U CN 202322800406U CN 221037292 U CN221037292 U CN 221037292U
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- 238000001179 sorption measurement Methods 0.000 claims abstract description 40
- 239000005304 optical glass Substances 0.000 claims description 24
- 230000007704 transition Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The application provides a tool fixture for measuring the size of a curved surface fingerprint module, which comprises: measuring a jig; the measuring jig is provided with a supporting bar, and the upper end surface of the supporting bar is concavely arranged to form a concave structure; the wall surface of the side edge of the concave structure is a bearing surface, a limiting block is arranged at the concave structure, and a limiting space is formed between the limiting block and the bearing surface; the bearing surface is provided with a workpiece adsorption hole; according to the application, the fingerprint module is stably placed in the limiting space through the limiting block and the limiting fixation of the bearing surface, the fingerprint module is prevented from having a larger inclined angle after being placed, the measurement standard of the fingerprint module is ensured, meanwhile, the workpiece adsorption hole can generate suction force, so that the fingerprint module is adsorbed and fixed towards the bearing surface, the placement stability of the fingerprint module is further ensured, the fingerprint module is tightly attached to the bearing surface, a certain position correction effect can be achieved on the placement of the fingerprint module, and the dimensional measurement accuracy of the fingerprint module is further ensured.
Description
Technical Field
The utility model relates to the technical field of fingerprint module measurement, in particular to a tool jig for measuring the size of a curved surface fingerprint module.
Background
After the fingerprint module is assembled, the dimensions of the fingerprint module in the aspect of length, width, height and the like are required to be measured so as to confirm whether the product is qualified.
In the prior art, most of the fingerprint modules are fixed on a measuring jig, and then the fingerprint modules are subjected to size measurement. However, when the existing measuring jig is used for fixing a fingerprint module, particularly when the fingerprint module (see fig. 3) with an arc bottom surface is used for fixing, the following problems often occur due to the specificity of the bottom surface: after placing the fingerprint module on the measurement jig, the fingerprint module is unstable in contact with the measurement jig and easy to incline, so that the dimension measurement data of the fingerprint module are inaccurate.
As shown in fig. 1 and 2 of the drawings, in the structure of the conventional measuring tool 1, two support bars 2 are disposed at the upper portion, and one side of the upper end surface of each support bar 2 is concavely disposed, so that a concave structure 200 is formed on each support bar 2, and the wall surface on the side of each concave structure 200 is a bearing surface 201, and meanwhile, the two support bars 2 are disposed in parallel, and the bearing surfaces 201 of the two support bars are located on the same plane; when the fingerprint module 1-1 with the arc bottom is fixed, the fingerprint module 1-1 is simultaneously placed in the concave structures 200 of the two support bars 2, the fingerprint module 1-1 is tightly attached to the bearing surfaces 201 of the two support bars 2, meanwhile, the workpiece adsorption holes 3 are formed in the support bar 2 structure on the bottom surface of the fingerprint module 1-1, the workpiece adsorption holes 3 are connected with a vacuum generator and can generate suction force, so that the fingerprint module is adsorbed and fixed, and then the size measurement is performed on the fingerprint module 1-1. But above-mentioned measurement jig is when fixed for curved fingerprint module in the bottom surface, because its bottom surface is uneven, often takes place fingerprint module and measurement jig contact unstability to the condition of slope appears, can influence fingerprint module's measurement benchmark like this, leads to measurement data inaccurate.
Therefore, it is necessary to provide a technical scheme capable of effectively fixing the fingerprint module with the arc bottom surface and ensuring accurate measurement data.
Disclosure of utility model
The utility model provides a tool jig for measuring the size of a curved surface fingerprint module, which aims to solve the problem that inaccurate measurement size is caused by inclination of the fingerprint module when the existing measuring jig clamps the fingerprint module with the arc bottom surface.
The technical scheme adopted by the utility model is as follows: a tooling fixture for measuring the size of a curved fingerprint module, comprising: measuring a jig; the measuring jig is provided with a supporting bar, and the upper end face of the supporting bar is concavely arranged to form a concave structure; the wall surface of the side edge of the concave structure is a bearing surface, a limiting block is arranged at the concave structure, and a limiting space for placing a fingerprint module is formed between the limiting block and the bearing surface; the bearing surface is provided with a workpiece adsorption hole, and the workpiece adsorption hole is used for generating suction force to fix the fingerprint module at the limiting space.
In an embodiment, two support bars are arranged on the measuring jig at intervals in parallel, and light-transmitting channels capable of allowing light to pass through are formed in two sides of each support bar.
In an embodiment, the measuring fixture is provided with an optical glass block at the side edge of the supporting bar, the optical glass block is used for placing the FPC on the fingerprint module, and the two-dimensional code on the FPC can be scanned and read from the lower part of the optical glass block.
In one embodiment, a cavity is formed at the side of the measuring jig, the optical glass block is installed at the upper end of the cavity, and the structure at the lower end of the cavity is obliquely arranged to form an oblique part; the inclined portion is used for converging light rays onto the optical glass block.
In one embodiment, the upper end surface of the support bar is provided with a vacuum adsorption hole, and the vacuum adsorption hole is used for generating suction force to adsorb and fix the FPC on the fingerprint module.
In one embodiment, the upper end surface of the supporting bar is provided with a lug, and the vacuum adsorption hole is arranged on the lug.
In an embodiment, the limit space is in transition fit with the fingerprint module.
In an embodiment, grooves are formed in two sides of the bottom surface of the limiting space, and the grooves are used for allowing light to pass through so as to observe the bottom condition of the fingerprint module.
In an embodiment, the measuring jig is provided with a plurality of mounting holes for mounting the measuring jig to corresponding positions.
In an embodiment, a pin hole is formed at the bottom surface of the measuring jig, and the pin hole is used for being matched with a pin to fixedly mount the measuring jig.
The beneficial effects of the utility model are as follows:
According to the application, the limiting block is arranged at the limiting structure of the supporting bar, the limiting block and the bearing surface at the side edge of the groove structure form a limiting space, when the fingerprint module is clamped and fixed, the fingerprint module can be directly placed in the limiting space, and even if the bottom of the fingerprint module is arc-shaped, the fingerprint module can be stably placed in the limiting space, a large inclined angle of the fingerprint module after placement is prevented, the measuring standard of the fingerprint module is ensured, meanwhile, the bearing surface is provided with the workpiece adsorption hole, and the workpiece adsorption hole is connected with the vacuum generator, so that the workpiece adsorption hole generates suction force and adsorbs and fixes the fingerprint module towards the bearing surface, thereby further ensuring the placement stability of the fingerprint module, and ensuring that the fingerprint module is clung to the bearing surface, and playing a certain position correcting role in the placement of the fingerprint module, and further ensuring the dimensional measurement accuracy of the fingerprint module.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of a measuring tool in the prior art;
FIG. 2 is a schematic diagram of a prior art measurement fixture with a fixed fingerprint module;
FIG. 3 is a schematic diagram of a prior art fingerprint module with an arc bottom surface;
FIG. 4 is a schematic diagram of an embodiment of the present utility model;
FIG. 5 is an enlarged view of a portion of an embodiment of the present utility model;
Fig. 6 is a top view of an embodiment of the present utility model.
The drawings are marked with the following description: 1-1, a fingerprint module; 1. measuring a jig; 101. a mounting hole; 102. an inclined portion; 103. a cavity; 2. a support bar; 200. a recessed structure; 201. a bearing surface; 202. a limiting block; 203. a limit space; 204. a light transmission channel; 205. a groove; 206. a bump; 3. a workpiece adsorption hole; 4. vacuum adsorption holes; 5. an optical glass block.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Referring to fig. 3-6, the present embodiment provides a tool fixture for measuring a curved fingerprint module size, including: measuring jig 1; the measuring jig 1 is provided with a supporting bar 2, and the upper end surface of the supporting bar 2 is concavely arranged to form a concave structure 200; the wall surface of the side edge of the concave structure 200 is a bearing surface 201, a limiting block 202 is arranged at the concave structure 200, and a limiting space 203 for placing the fingerprint module 1-1 is formed between the limiting block 202 and the bearing surface 201; the bearing surface 201 is provided with a workpiece adsorption hole 3, and the workpiece adsorption hole 3 is used for generating suction force to fix the fingerprint module 1-1 at the limiting space 203.
In the application, the limit block 202 is arranged at the limit structure of the support bar 2, the limit block 202 and the bearing surface 201 at the side edge of the groove 205 structure form the limit space 203, when the fingerprint module 1-1 is clamped and fixed, the fingerprint module 1-1 can be directly placed in the limit space 203, the fingerprint module 1-1 can be stably placed in the limit space 203 through the limit fixing of the limit block 202 and the bearing surface 201, compared with the prior art, the fingerprint module 1-1 is adsorbed and fixed only through the support of the bearing surface 201 and the workpiece adsorption hole 3 at the bottom, the application can ensure that the placement of the fingerprint module 1-1 with the arc bottom is more stable, and can prevent the fingerprint module 1-1 from having a larger inclination angle after placement, furthermore, the application further ensures the measurement standard of the fingerprint module 1-1, meanwhile, the application is provided with the workpiece adsorption hole 3, the workpiece adsorption hole 3 is connected with the vacuum generator, so that the workpiece adsorption hole 3 generates suction to adsorb and fix the fingerprint module 1-1 in the limit space 203, thereby further ensuring the stable placement of the fingerprint module 1-1, and in the application, the workpiece adsorption hole 3 is arranged on the bearing surface 201, compared with the prior art that the workpiece adsorption hole 3 is arranged on the bottom surface of the groove 205 structure, the application changes the arrangement position of the workpiece adsorption hole 3, so that the workpiece adsorption hole 3 can play a role of position correction besides the fixing role, and the application comprises the following specific steps: when the workpiece adsorption hole 3 adsorbs and fixes the fingerprint module 1-1 at the limiting space 203, the fingerprint module 1-1 can be adsorbed and fixed towards the bearing surface 201, and finally the fingerprint module 1-1 is clung to the bearing surface 201, so that a certain position correction effect is played on the placement of the fingerprint module 1-1, and the dimensional measurement accuracy of the fingerprint module 1-1 is further ensured.
Further, the spacing space 203 is in transition fit with the fingerprint module 1-1, specifically in clearance fit, that is, a tiny gap exists between the spacing block 202 or the bearing surface 201 and the fingerprint module 1-1, so that when the workpiece adsorption hole 3 adsorbs and fixes the fingerprint module 1-1, the fingerprint module 1-1 in the spacing space 203 can slightly deviate towards the bearing surface 201, thereby adjusting the position of the fingerprint module 1-1 and enabling the fingerprint module 1-1 to be clung to the bearing surface 201, finally realizing the position correction effect and ensuring the measurement reference of the fingerprint module 1-1.
Further, two support bars 2 are arranged on the measuring jig 1 at intervals in parallel, and light-transmitting channels 204 capable of allowing light to pass through are formed on two sides of the two support bars 2; specifically, the two support bars 2 are arranged in parallel according to a specified direction, and the positions of the limiting spaces 203 on the two support bars 2 are corresponding, so that the fingerprint module 1-1 can be transversely placed at the positions of the limiting spaces 203 on the two support bars 2, meanwhile, three light transmission channels 204 are arranged on the measuring jig 1, the three light transmission channels 204 are distributed on the side edges of the two support bars 2 (see fig. 4), specifically, the first light transmission channel 204 is distributed on the left side of one support bar 2, the second light transmission channel 204 is distributed on the right side of the other support bar 2, the rest light transmission channel 204 is distributed in the middle of the two support bars 3, and the light transmission channels 204 can enable light to pass through, so that projection imaging can be performed on the fingerprint module 1-1 on the support bars 2, and therefore, the size measurement of the fingerprint module 1-1 can be performed, or after the light passes through the light transmission channels 204, the visual field is provided, and the size measurement of the fingerprint module 1-1 can be conveniently performed by using other tools.
Further, the measuring tool 1 is provided with an optical glass block 5 at the side of the supporting bar 2, the optical glass block 5 is used for providing a supporting plane to place the FPC (flexible circuit board) on the fingerprint module 1-1, and the optical glass block 5 is a transparent workpiece, and the two-dimensional code on the FPC can be scanned and read from the lower side of the optical glass block 5 after the FPC is placed stably. Specifically, the side of the measuring fixture 1 is provided with a 匚 -shaped structure (see fig. 4), the middle space of the 匚 -shaped structure is a cavity 103, the optical glass block 5 is installed at the upper end of the cavity 103, meanwhile, the structure at the lower end of the cavity 103 is obliquely arranged (see fig. 4), so that an oblique part 102 is formed at the lower end of the cavity 103, and the oblique part 102 can enable light to be converged at the optical glass block 5 above, so that good light conditions are provided for reading and imaging of the two-dimensional code.
Further, the upper end face of the support bar 2 is provided with a vacuum adsorption hole 4, the vacuum adsorption hole 4 is connected with a vacuum generator, so that suction force can be generated, when the fingerprint module 1-1 with a certain structure is placed at the limit space 203, the FPC on the fingerprint module 1-1 can be placed at the upper end face of the support bar 2 and then adsorbed and fixed through the vacuum adsorption hole 4, so that the FPC is prevented from shaking, and the clamping or the size measurement of the fingerprint module 1-1 is affected.
Further, the upper end face of the supporting bar 2 is provided with a bump 206, and the vacuum adsorption hole 4 is formed in the bump 206, wherein the bump 206 plays a role in positioning, and can quickly acquire the placement position of the FPC, so that the FPC is fixed.
Further, grooves 205 are formed in two sides of the bottom surface of the limiting space 203, and the grooves 205 enable light to pass through, so that the bottom condition of the fingerprint module 1-1 can be observed through the grooves 205 when the size of the fingerprint module 1-1 is measured.
Further, the measuring tool 1 is provided with a plurality of mounting holes 101, and the mounting holes 101 are used for mounting fixing pieces, such as bolt screws, so that the measuring tool 1 can be fixedly mounted at corresponding positions, such as on a workbench. In addition, a pin hole (not shown in the figure) is provided at the bottom surface of the measuring jig 1, and the pin hole is used for matching with a pin, such as a pin on a workbench, so as to further fix the measuring jig 1.
The specific working process of the measuring jig 1 comprises the following steps: when the fingerprint module 1-1 is required to be measured in size, the fingerprint module 1-1 is placed at the limiting space 203 of the supporting bar 2, the fingerprint module 1-1 can be stably placed and prevented from being inclined at a larger angle after being placed by limiting the limiting block 202 and the bearing surface 201, the measuring standard of the fingerprint module 1-1 can be ensured, then suction force is generated through the workpiece suction holes 3 at the bearing surface 201, so that the fingerprint module 1-1 is fixedly sucked, the fingerprint module 1-1 is further stably placed, the workpiece suction holes 3 can enable the fingerprint module 1-1 to be fixedly sucked towards the bearing surface 201, the fingerprint module 1-1 is finally clung to the bearing surface 201, the position of the fingerprint module 1-1 is regulated, a certain correcting function is played on the placing position of the fingerprint module 1-1, and the accuracy of the measurement of the size of the fingerprint module 1-1 is further ensured.
After the fingerprint module 1-1 is clamped and fixed, light can be injected in the horizontal direction and the vertical direction, so that the fingerprint module 1-1 can be projected and imaged in the light transmission channel 204, and the size of the fingerprint module 1-1 can be measured, or after the light is injected in the light transmission channel 204, the visual field is provided, and the measurement can be conveniently performed by using other measurement work.
Meanwhile, after the fingerprint module 1-1 is clamped and fixed, the FPC on the fingerprint module 1-1 can be placed on the bump 206 of the support bar 2, the tail end (one end containing the two-dimensional code) of the FPC is supported and placed on the optical glass block, the two-dimensional code on the FPC faces the optical glass block 5, after the FPC is placed, the FPC is adsorbed and fixed through the vacuum adsorption holes 4 on the bump 206, and then the two-dimensional code on the FPC can be scanned and read from the lower part of the optical glass block 5, so that the corresponding information of the fingerprint module 1-1 can be obtained.
It should be noted that, when not every fingerprint module 1-1 is placed in the limiting space 203, the FPC will pass through the bump 206 and be adsorbed and fixed by the vacuum adsorption hole 4, and then the tail end (the end containing the two-dimensional code) of the FPC is supported and placed on the optical glass block; it will be appreciated that some configurations of the FPC of the fingerprint module 1-1 may be placed directly onto the optical glass block without passing through the bumps 206.
Compared with the prior art:
1. In the application, the limiting block 202 is arranged at the limiting structure of the supporting bar 2, the limiting block 202 and the bearing surface 201 at the side edge of the groove 205 structure form the limiting space 203, when the fingerprint module 1-1 is clamped and fixed, the fingerprint module 1-1 can be directly placed in the limiting space 203, even if the bottom of the fingerprint module 1-1 is arc-shaped through the limiting block 202 and the limiting and fixing of the bearing surface 201, the fingerprint module 1-1 can be stably placed in the limiting space 203, the fingerprint module 1-1 is prevented from having a larger inclined angle after being placed, the measuring standard of the fingerprint module 1-1 is ensured, meanwhile, the workpiece adsorption hole 3 is arranged on the bearing surface 201, and the workpiece adsorption hole 3 is connected with the vacuum generator, so that the workpiece adsorption hole 3 generates suction force and adsorbs and fixes the fingerprint module 1-1 towards the bearing surface 201, thereby further ensuring the stable placement of the fingerprint module 1-1, and further ensuring the accurate measurement of the size of the fingerprint module 1-1 by enabling the fingerprint module 1-1 to be tightly attached to the bearing surface 201.
2. According to the application, the transparent optical glass block 5 is used for supporting the FPC on the fingerprint module 1-1, and the two-dimensional code on the FPC can be scanned from the lower part of the optical glass block 5, so that the information of the corresponding fingerprint module 1-1 can be conveniently read.
Any combination of the various embodiments of the utility model should be considered as being within the scope of the present disclosure, as long as the inventive concept is not violated; within the scope of the technical idea of the utility model, any combination of various simple modifications and different embodiments of the technical proposal without departing from the inventive idea of the utility model should be within the scope of the utility model.
Claims (10)
1. Tool fixture for measuring curved surface fingerprint module size, its characterized in that includes: measuring a jig; the measuring jig is provided with a supporting bar, and the upper end face of the supporting bar is concavely arranged to form a concave structure; the wall surface of the side edge of the concave structure is a bearing surface, a limiting block is arranged at the concave structure, and a limiting space for placing a fingerprint module is formed between the limiting block and the bearing surface; the bearing surface is provided with a workpiece adsorption hole, and the workpiece adsorption hole is used for generating suction force to fix the fingerprint module at the limiting space.
2. The tooling fixture for measuring the size of a curved fingerprint module according to claim 1, wherein: the measuring jig is provided with two supporting bars at intervals in parallel, and light-transmitting channels capable of allowing light to pass through are formed in two sides of each supporting bar.
3. The tooling fixture for measuring the size of a curved fingerprint module according to claim 2, wherein: the measuring jig is characterized in that an optical glass block is arranged on the side edge of the supporting bar, the optical glass block is used for placing the FPC on the fingerprint module, and the two-dimensional code on the FPC can be scanned and read from the lower part of the optical glass block.
4. The tooling fixture for measuring the size of a curved fingerprint module according to claim 3, wherein: the side of the measuring jig is provided with a cavity, the optical glass block is arranged at the upper end of the cavity, and the structure at the lower end of the cavity is obliquely arranged to form an inclined part; the inclined portion is used for converging light rays onto the optical glass block.
5. A tooling fixture for measuring the size of a curved fingerprint module according to any one of claims 1-3, wherein: the upper end face of the support bar is provided with a vacuum adsorption hole, and the vacuum adsorption hole is used for generating suction force to adsorb and fix the FPC on the fingerprint module.
6. The tooling fixture for measuring the size of a curved fingerprint module according to claim 5, wherein: the upper end face of the supporting bar is provided with a lug, and the vacuum adsorption hole is arranged on the lug.
7. The tooling fixture for measuring the size of a curved fingerprint module according to claim 1, wherein: the spacing space is the transition fit with between the fingerprint module.
8. The tooling fixture for measuring the size of a curved fingerprint module according to claim 1, wherein: the bottom surface both sides department in spacing space all is provided with the recess, the recess is used for making light pass in order to observe the bottom condition of fingerprint module.
9. The tooling fixture for measuring the size of a curved fingerprint module according to claim 1, wherein: the measuring jig is provided with a plurality of mounting holes, and the mounting holes are used for mounting the measuring jig at corresponding positions.
10. The tooling fixture for measuring the size of a curved fingerprint module according to claim 1, wherein: the bottom surface department of measuring tool is provided with the pinhole, the pinhole is used for with the pin cooperation in order to fixed mounting measuring tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800406.5U CN221037292U (en) | 2023-10-18 | 2023-10-18 | Tool fixture for measuring curved surface fingerprint module size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800406.5U CN221037292U (en) | 2023-10-18 | 2023-10-18 | Tool fixture for measuring curved surface fingerprint module size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221037292U true CN221037292U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322800406.5U Active CN221037292U (en) | 2023-10-18 | 2023-10-18 | Tool fixture for measuring curved surface fingerprint module size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221037292U (en) |
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2023
- 2023-10-18 CN CN202322800406.5U patent/CN221037292U/en active Active
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