CN217155789U

CN217155789U - Dual-mode jig for testing functions of optical fingerprint module

Info

Publication number: CN217155789U
Application number: CN202220811314.XU
Authority: CN
Inventors: 金坤; 朱广亮; 惠前进
Original assignee: Dongguan Precision Measuring Hardware Equipment Co ltd
Current assignee: Dongguan Precision Measuring Hardware Equipment Co ltd
Priority date: 2022-04-10
Filing date: 2022-04-10
Publication date: 2022-08-09
Anticipated expiration: 2032-04-10

Abstract

The utility model provides a test optical fingerprint module function's bimodulus tool, including bimodulus tool body, bimodulus tool body includes bottom plate and test groove, and the inside of bottom plate is provided with the gas circuit structure, the inside of test groove is provided with two regions, and covers at the one end top of test groove and have the glass board, the internally mounted of the test groove other end has supporting mechanism, the base is installed to supporting mechanism's bottom, the push rod is installed to the front end of base, first piston is installed to the front end of push rod, increases atmospheric pressure through the inside injection air of gas circuit structure and can drive the auxiliary mechanism upset, and then will fall on the outside module work piece of test groove pushes the board of placing in the test groove, correct the work piece of putting the mistake, has improved the test success rate, and utilizes the auxiliary mechanism to press at the top of placing the board, avoids pressure test to accomplish in the twinkling of an eye the spring and upwards promote great range with the product and lead to influencing subsequent optical test.

Description

Dual-mode jig for testing functions of optical fingerprint module

Technical Field

The utility model relates to a module test technical field specifically is a bimodulus tool of test optical fingerprint module function.

Background

The fingerprint module needs to test its multiple functions in the manufacturing process, need use dedicated tool to load the module in the testing process, avoid removing or look sideways at the in-process and take place to drop, current test is with bimodulus tool simple structure, load through offering the fretwork recess at the testing board surface, can carry out multiple function test, but in pressing test and optical detection, all be different to the requirement of testing environment, conventional bimodulus tool can't protect the module when removing between a plurality of test items, also lack effectual fixed knot that presses structure, lead to the precision of test to be low, the many scheduling problems of interference factor in the removal process.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a test optical fingerprint module function's bimodulus tool to solve the problem that proposes in the above-mentioned background art, the utility model discloses correct when can placing the module, the measuring accuracy is higher, effectively plays dustproof effect when removing.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a test optical fingerprint module function's bimodulus tool, includes bimodulus tool body, bimodulus tool body includes bottom plate and test groove, and the inside of bottom plate is provided with the gas circuit structure, the inside of testing the groove is provided with two regions, and covers at the one end top of testing the groove and have the glass board, the internally mounted of testing the groove other end has supporting mechanism, the base is installed to supporting mechanism's bottom, the push rod is installed to the front end of base, first piston is installed to the front end of push rod.

Further, the supporting mechanism comprises a base and a placing plate, a spring is installed at the bottom of the placing plate, the bottom end of the spring is fixedly connected with the top of the base, and auxiliary mechanisms are arranged on two sides of the test slot.

Further, the base and the both sides of placing the board all laminate mutually with the inner wall of test groove, the spout has been seted up to the bottom of test groove, the bottom of base is through the inside removal at the spout of the steel ball structure of evagination.

Further, the front end and the rear end of the placing plate are both provided with an inclined plane structure which is tilted upwards, the top end of the glass plate is flush with the surface of the bottom plate, and the placing plate is attached to one end of the glass plate through the inclined plane of the rear end.

Further, the auxiliary mechanism comprises a rotating shaft and an auxiliary pressing plate, bearings are installed at two ends of the rotating shaft, a torsion spring and a pull rope are sleeved on one end surface of the rotating shaft, and a second piston is connected to the tail end of the pull rope.

Furthermore, the auxiliary mechanisms are provided with two groups and are symmetrically installed on two sides of the test slot, the torsion spring turns the auxiliary pressing plate to the outer side of the test slot in an initial state, and the pull rope penetrates out from the bottom end of the rotating shaft to the position of the second piston.

Furthermore, the outer end of the gas circuit structure is provided with a butt joint gas hole, the inside of the butt joint gas hole is respectively communicated with the first cylinder and the gas circuit pipeline, and the tail end of the gas circuit pipeline is provided with the second cylinder.

Furthermore, the butt joint air hole is connected with external pneumatic equipment, the first piston moves in the first cylinder, and the air channel pipeline and the second cylinder are symmetrically arranged on two sides of the first cylinder.

The utility model has the advantages that: the utility model discloses a test optical fingerprint module function's bimodulus tool, including bimodulus tool body, bimodulus tool body includes bottom plate, test groove, gas circuit structure, supporting mechanism, complementary unit, places board, base, spring, glass board, push rod, first piston, pivot, supplementary clamp plate, torsional spring, bearing, stay cord, second piston, butt joint gas pocket, first cylinder, gas circuit pipeline, second cylinder.

1. This bimodulus tool of test optics fingerprint module function can drive the auxiliary mechanism upset through pouring into atmospheric pressure into gas circuit structure inside, and then will fall on the outside module work piece of test groove pushes the board of placing in the test groove, corrects the work piece of putting the deviation, improves the success rate of test.

2. This bimodulus tool of test optics fingerprint module function carries out pressure test process on the surface of placing the board, and the spring through the bottom in the testing process carries out the shock attenuation, reduces the influence to the product, and utilizes complementary unit to press at the top of placing the board, avoids the test to accomplish in the twinkling of an eye the spring upwards promote great range influence subsequent optical test with the product.

3. This bimodulus tool of test optics fingerprint module function is through gas circuit structure with the inside synchronous realization of first cylinder and second cylinder form the negative pressure of bleeding, will place the board through first piston and push rod and remove to the glass board bottom, shelters from the module of placing on the surface, reduces the influence that the external environment produced the module body in the removal process, and can not disturb subsequent optical detection procedure.

Drawings

FIG. 1 is a schematic structural diagram of an appearance of a dual-mode fixture for testing functions of an optical fingerprint module according to the present invention;

FIG. 2 is a schematic view of the inside of a test slot of a dual-mode fixture for testing the function of an optical fingerprint module according to the present invention;

FIG. 3 is a schematic structural diagram of an auxiliary mechanism of a dual-mode fixture for testing the function of an optical fingerprint module according to the present invention;

FIG. 4 is a top sectional view of a bottom plate of a dual-mode tool for testing the function of an optical fingerprint module according to the present invention;

in the figure: 1. a base plate; 2. a test slot; 3. a gas path structure; 4. a support mechanism; 5. an auxiliary mechanism; 6. placing the plate; 7. a base; 8. a spring; 9. a glass plate; 10. a push rod; 11. a first piston; 12. a rotating shaft; 13. an auxiliary pressure plate; 14. a torsion spring; 15. a bearing; 16. pulling a rope; 17. a second piston; 18. butting air holes; 19. a first cylinder; 20. a gas path pipeline; 21. a second cylinder.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a dual-mode jig for testing functions of an optical fingerprint module comprises a dual-mode jig body, wherein the dual-mode jig body comprises a bottom plate 1 and a test slot 2, an air channel structure 3 is arranged in the bottom plate 1, two areas are arranged in the test slot 2, a glass plate 9 covers the top of one end of the test slot 2, a supporting mechanism 4 is arranged in the other end of the test slot 2, a base 7 is arranged at the bottom end of the supporting mechanism 4, a push rod 10 is arranged at the front end of the base 7, a first piston 11 is arranged at the front end of the push rod 10, when the device is used, a fingerprint module to be tested needs to be placed in the test slot 2 of the jig through external power equipment, the supporting mechanism 4 is arranged in the test slot 2, the fingerprint module is placed on a placing plate 6 in the supporting mechanism 4, and the bottom plate 1 is moved to a corresponding function testing area, can carry out corresponding functional test to the fingerprint module that the surface was placed in this region, and the in-process of putting of tool, use supporting mechanism 4 to carry out the position correction to the module of inside placing, the module deviation appears and leads to falling to the outside of test groove 2 when avoiding placing, the success rate of putting has been improved, simultaneously when driving the module through bottom plate 1 and removing, connect inside gas circuit structure 3 through outside pneumatic equipment, can remove supporting mechanism 4 in the inside of test groove 2, move supporting mechanism 4 to the bottom of glass board 9, can be in relative confined environment with the module of placing 6 surfaces of board, thereby at the reduction module that removes the in-process as far as and outside air contact, reduce the influence that external environment produced the module to the minimum within range, the detection precision of follow-up test has been improved.

In this embodiment, the supporting mechanism 4 includes a base 7 and a placing plate 6, the top end of the spring 8 is fixedly connected with the bottom of the placing plate 6, the bottom end of the spring 8 is fixedly connected with the top of the base 7, two sides of the test slot 2 are provided with the auxiliary mechanisms 5, two sides of the base 7 and the placing plate 6 are both attached to the inner wall of the test slot 2, the bottom end of the test slot 2 is provided with a chute, the bottom end of the base 7 moves inside the chute through a convex steel ball structure, two types of test areas are arranged inside the test slot 2, the bottom end of the glass plate 9 is an optical detection area, the surface physical state of the module is mainly detected through an external detection device, the other end of the test slot 2 is subjected to a pressure test, and the pressure test device contacting the external device performs a pressure test on the fingerprint module placed on the placing plate 6 by moving the fixture to a corresponding pressure test environment, the surface of the module bears certain pressure in the testing process, the bottom end of the placing plate 6 is connected with the spring 8 and the base 7, after the pressure is applied, the spring 8 is compressed to play a certain buffering role on the module placed at the top end, after the pressure testing is completed, the spring 8 resets, certain impact force can be generated at the moment of resetting, the module can be bounced upwards to cause translation, before the pressure testing is completed, air pressure is injected into the butt joint air hole 18 through external pneumatic equipment, the air channel pipelines 20 on the two sides guide the air pressure to the second air cylinders 21 on the two sides, the second piston 17 is pulled towards the two sides in the second air cylinders 21, therefore, the piston can drive the rotating shaft 12 to overturn through the pull rope 16 at the rear end, the rotating shaft 12 overturns the auxiliary pressing plate 13 on the surface to the middle position of the testing, and the module placed on the surface of the placing plate 6 can be pressed, when the external pressure test equipment is released, the blocking of the auxiliary pressure plate 13 can prevent the surface-mounted module from being lifted upwards by the spring 8, so as to facilitate the subsequent other test items.

In this embodiment, the front end and the rear end of the placing plate 6 are both provided with an inclined plane structure which is tilted upwards, the top end of the glass plate 9 is flush with the surface of the bottom plate 1, the placing plate 6 is attached to one end of the glass plate 9 through the inclined plane at the rear end, the auxiliary mechanism 5 comprises a rotating shaft 12 and an auxiliary pressing plate 13, bearings 15 are installed at two ends of the rotating shaft 12, a torsion spring 14 and a pulling rope 16 are sleeved on the surface of one end of the rotating shaft 12, a second piston 17 is connected to the tail end of the pulling rope 16, two groups of auxiliary mechanisms 5 are arranged and are symmetrically installed at two sides of the test slot 2, the torsion spring 14 turns the auxiliary pressing plate 13 to the outside of the test slot 2 in an initial state, the pulling rope 16 penetrates out from the bottom end of the rotating shaft 12 to the position of the second piston 17, when the module is placed on the supporting mechanism 4, individual modules are placed outside the test slot 2 due to the deviation of a visual system and small difference between each module, make module whole part place on the board 6 of placing in the test groove 2, the condition of slope consequently appears, inject into atmospheric pressure in the gas circuit pipeline 20 through from butt joint gas pocket 18 inside this moment, turn over the pivot 12 to the inboard through second piston 17 once more, can drive supplementary clamp plate 13 and overturn, because supplementary clamp plate 13 overturns from the top to the position of test groove 2, consequently, carry out the in-process that overturns at supplementary clamp plate 13, can promote the module of putting the skew to the inside of test groove 2, finally will fall in the outside part of test groove 2 pushes test groove 2 again through supplementary clamp plate 13, and the protruding structure that the board 6 front and back end was provided with is placed in the cooperation, can correct the state of putting with the module of skew is corrected again, do not need extra correction mechanism.

In this embodiment, the outer end of the air path structure 3 is provided with a docking air hole 18, the inside of the docking air hole 18 is respectively communicated with a first air cylinder 19 and an air path pipeline 20, the end of the air path pipeline 20 is provided with a second air cylinder 21, the docking air hole 18 is connected with an external pneumatic device, the first piston 11 moves inside the first air cylinder 19, the air path pipeline 20 and the second air cylinder 21 are symmetrically arranged on both sides of the first air cylinder 19, after the pressure test is completed, the connection state of the docking air hole 18 at the front end of the jig and the external pneumatic device is changed from an inflation state to an air pumping state, at this time, a negative pressure is formed inside the air path structure 3, and then the second piston 17 is lost in the second air cylinder 21, the rotating shaft 12 is turned over again to the outer side of the test slot 2 under the action of the torsion spring 14, so that the module on the placing plate 6 can be separated from the bottom end of the auxiliary pressing plate 13, in the air exhaust process of the air path structure 3, the inside of the first cylinder 19 forms a negative pressure state synchronously, so that the first piston 11 moves outwards due to internal decompression, the supporting mechanism 4 at the rear end is driven to move, and finally the module placed on the surface is moved to the bottom end of the glass plate 9, so that the module has a certain protection effect in the subsequent moving process, and the rest optical test procedures cannot be interfered.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a test optics fingerprint module function's bimodulus tool, includes bimodulus tool body, its characterized in that: the dual-mode jig comprises a bottom plate (1) and test slots (2), wherein an air channel structure (3) is arranged inside the bottom plate (1), the inside of each test slot (2) is arranged into two areas, a glass plate (9) covers the top of one end of each test slot (2), a supporting mechanism (4) is arranged inside the other end of each test slot (2), a base (7) is installed at the bottom end of each supporting mechanism (4), a push rod (10) is installed at the front end of each base (7), and a first piston (11) is installed at the front end of each push rod (10).

2. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 1, wherein: the supporting mechanism (4) comprises a base (7) and a placing plate (6), a spring (8) is installed at the bottom of the placing plate (6), the bottom end of the spring (8) is fixedly connected with the top of the base (7), and auxiliary mechanisms (5) are arranged on two sides of the test slot (2).

3. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 2, wherein: the inner wall of the test groove (2) is attached to the two sides of the base (7) and the placing plate (6), the bottom end of the test groove (2) is provided with a sliding groove, and the bottom end of the base (7) moves inside the sliding groove through the convex steel ball structure.

4. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 3, wherein: the front end and the rear end of the placing plate (6) are both provided with an inclined plane structure which is tilted upwards, the top end of the glass plate (9) is flush with the surface of the bottom plate (1), and the placing plate (6) is attached to one end of the glass plate (9) through the inclined plane of the rear end.

5. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 2, wherein: the auxiliary mechanism (5) comprises a rotating shaft (12) and an auxiliary pressing plate (13), bearings (15) are installed at two ends of the rotating shaft (12), a torsion spring (14) and a pull rope (16) are sleeved on the surface of one end of the rotating shaft (12), and a second piston (17) is connected to the tail end of the pull rope (16).

6. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 5, wherein: the auxiliary mechanisms (5) are arranged in two groups, the two auxiliary mechanisms (5) are symmetrically arranged on two sides of the test slot (2), the torsion spring (14) overturns the auxiliary pressing plate (13) to the outer side of the test slot (2) in an initial state, and the pull rope (16) penetrates out of the bottom end of the rotating shaft (12) and extends to the position of the second piston (17).

7. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 1, wherein: the outer end of the air path structure (3) is provided with a butt joint air hole (18), the interior of the butt joint air hole (18) is respectively communicated with a first air cylinder (19) and an air path pipeline (20), and the tail end of the air path pipeline (20) is provided with a second air cylinder (21).

8. The dual-mode fixture for testing the functions of the optical fingerprint module as claimed in claim 7, wherein: the butt joint air hole (18) is connected with external air pressure equipment, the first piston (11) moves in the first air cylinder (19), and the air channel pipeline (20) and the second air cylinder (21) are symmetrically arranged on two sides of the first air cylinder (19).