CN115061040A - Detection jig - Google Patents

Abstract

The invention belongs to the technical field of sensor detection, and discloses a detection jig which comprises a workbench, a fixing assembly, a shielding piece, a detection assembly and a display assembly. The PI component can be fixedly arranged on the fixed assembly, the shielding piece can move towards the fixed assembly and is arranged between the transmitting end and the receiving end of the PI component, the detection assembly can move from a free position towards the fixed assembly to a conducting position to be in contact with pins of the PI component and be electrically conducted, and the detection assembly can detect the PI component and judge whether the PI component is qualified; the display component is electrically connected with the detection component, and the display component can display the detection result information of the PI element according to the judgment information of the detection component. According to the detection jig provided by the invention, the PI elements with the same performance are screened by the detection jig, so that the reset positions of all the lenses can be relatively kept consistent, the production efficiency is effectively improved, and the yield of the lenses is improved.

Description

Detection jig

Technical Field

The invention relates to the technical field of sensor detection, in particular to a detection jig.

Background

Photo-Interrupt is abbreviated as PI and is a photoelectric breaker. When the light emitted by the PI element is blocked, the PI element can generate an electric signal. At present, the PI element is widely used in the lens zooming technology.

In the prior art, a driving component is controlled by a software program in a lens to drive a group to shift so as to achieve the purpose of zooming the lens, and whether a focusing group and a zooming group are reset or not is determined by an electric signal generated by a PI element.

At present, the deviation of the reset position of each lens can be caused by the inconsistency of electric signals generated by PI elements, so that the whole machine needs to be subjected to complex and tedious debugging, the manufacturing time of the whole machine is prolonged, and the production efficiency is greatly reduced.

Disclosure of Invention

The invention aims to provide a detection jig which can screen PI elements with the same performance so that the reset positions of all lenses can be kept consistent relatively and the production efficiency is improved.

In order to achieve the purpose, the invention adopts the following technical scheme:

a detection tool is used for detecting a PI element, and comprises:

a work table;

the fixing component is arranged on the workbench, and a PI element can be fixedly arranged on the fixing component;

the shielding piece is arranged on the workbench, can move towards the fixed assembly and is arranged between the transmitting end and the receiving end of the PI element;

the detection component is arranged on the workbench, can move from a free position to a conducting position towards the fixed component so as to be in contact with pins of the PI element and be electrically conducted, and can detect the PI element and judge whether the PI element is qualified;

and the display component is electrically connected with the detection component and can display the detection result information of the PI element according to the judgment information of the detection component.

Optionally, the securing assembly comprises:

the fixing block is provided with a plurality of fixing grooves at intervals along the length direction of the fixing block, and the PI elements can be correspondingly arranged in the fixing grooves one by one;

the pressing plate is provided with a plurality of fixing thimbles at intervals along the length direction of the pressing plate, the fixing thimbles are arranged in one-to-one correspondence with the fixing grooves, and the pressing plate can move from an initial position to a fixing position towards the fixing block so that the fixing thimbles can press the PI element in the fixing grooves.

Optionally, the fixing assembly further comprises:

the sliding rail and sliding block mechanism comprises a sliding rail arranged on the workbench and a sliding block connected with the sliding rail in a sliding manner, and the pressurizing plate is fixed on the sliding block;

the first clamping piece is arranged on the workbench;

the second joint spare, with the pressure plate is connected, works as the pressure plate is located when fixed position, the second joint spare can with first joint spare joint is in order to fix the pressure plate.

Optionally, the first clamping piece is provided with a sliding chute, and a first clamping groove and a second clamping groove which are communicated with the sliding chute, and the first clamping groove and the second clamping groove are respectively arranged at two ends of the sliding chute;

the first end of the second clamping piece is rotatably connected with the pressurizing plate, the second end of the second clamping piece penetrates through the chute, and the second clamping piece can move in the chute to drive the pressurizing plate to be switched between the initial position and the fixed position; wherein,

when the pressurizing plate is arranged at the initial position, the second clamping piece can rotate and is clamped with the first clamping groove;

when the pressure plate is arranged in the fixed position, the second clamping piece can rotate and is clamped with the second clamping groove.

Optionally, the method further comprises:

the adjusting plate is arranged on the workbench, a through hole is formed in the adjusting plate, and the shielding piece penetrates through the through hole;

the driving piece is arranged in the through hole and is positioned at one end of the shielding piece, which is opposite to the fixed assembly, and the driving piece can move along the through hole and drive the shielding piece to move;

the first elastic body is arranged in the through hole, a first end of the first elastic body is connected with the adjusting plate, a second end of the first elastic body is connected with the shielding piece, and the first elastic body is configured to force the shielding piece to be moved towards the fixing assembly.

Optionally, the surface of the driving part is provided with an external thread, the through hole is internally provided with an internal thread which is connected with the external thread of the driving part in a matching manner, and the driving part is in threaded connection with the through hole.

Optionally, the detection assembly comprises:

the moving plate is provided with a detection probe, and the detection probe can be in contact with and electrically conducted with pins of the PI element;

a guide assembly disposed between the table and the moving plate, the guide assembly being configured to guide a reciprocating movement of the moving plate relative to the fixed assembly;

a second elastic body having one end connected to the table and the other end connected to the moving plate, the second elastic body being configured to apply a force to move the moving plate from the on position to the free position.

Optionally, the guide assembly comprises:

the guide shaft is arranged on the workbench;

and the sliding bearing is fixedly connected with the movable plate and is sleeved on the guide shaft in a sliding manner.

Optionally, the detection assembly includes a measurement box, the measurement box can be electrically conducted with the PI element and detect the PI element, and a display screen is arranged on the measurement box and can display detection information of the PI element.

Optionally, the display assembly comprises a green signal lamp and a red signal lamp which are electrically connected with the detection assembly, when the PI element detected by the detection assembly is qualified, the green signal lamp is turned on, and the red signal lamp is turned off; and when the PI element detected by the detection component is unqualified, the green signal lamp is turned off, and the red signal lamp is turned on.

Has the advantages that:

the invention provides a detection jig, firstly, a PI element is fixedly arranged on a fixed assembly; secondly, moving the shielding piece and placing the shielding piece between the transmitting end and the receiving end of the PI element; then, moving the detection assembly and enabling the detection assembly to be in contact with pins of the PI element and be electrically conducted; and finally, assembling the PI elements which are displayed to be qualified by the display assembly into the lens. The PI elements with the same screening performance are screened through the detection jig, so that electric signals generated by each qualified PI element are the same, the reset position of each lens can be kept consistent relatively, the debugging process of the lens is simplified, the production efficiency is effectively improved, and the yield of the lens is improved.

Drawings

Fig. 1 is a schematic view of a view angle structure of the inspection jig provided in the present invention;

fig. 2 is a schematic view of another view structure of the inspection jig according to the present invention;

FIG. 3 is a cross-sectional view of a testing fixture according to the present invention;

FIG. 4 is a cross-sectional view of a part of the structure of the inspection jig of the present invention;

FIG. 5 is a schematic structural diagram of a PI device provided by the present invention;

FIG. 6 is a schematic structural diagram of a fixing block provided in the present invention;

FIG. 7 is an exploded view of a part of the structure of the inspection jig according to the present invention;

FIG. 8 is a cross-sectional view of another partial structure of the inspection jig of the present invention;

figure 9 is a schematic view of the construction of the shield provided by the present invention.

In the figure:

100. a work table;

200. a fixing assembly; 210. a fixed block; 211. a support plate; 212. mounting a plate; 213. a fixing groove; 214. a yielding groove; 215. perforating; 220. a pressurizing plate; 221. fixing the thimble; 230. a slide rail and slide block mechanism; 240. a first clip member; 241. a chute; 242. a first clamping groove; 243. a second clamping groove; 244. a strip hole; 250. a second clip member; 251. a hinge portion; 252. a grip portion;

310. a shield; 311. a shielding portion; 312. an annular projection; 313. a limiting bulge; 320. an adjusting plate; 321. a through hole; 3211. a first stepped hole; 3212. a second stepped bore; 3213. a limiting groove; 3214. a third stepped bore; 330. a drive member; 331. connecting grooves; 332. accommodating grooves; 340. a first elastic body;

400. a detection component; 410. moving the plate; 411. detecting the probe; 412. a first circuit board; 420. a guide assembly; 421. a guide shaft; 422. a sliding bearing; 430. a second elastomer; 440. a second circuit board;

500. a display component; 510. a third circuit board; 511. a green signal lamp; 512. a red signal lamp; 600. a PI element; 610. a transmitting end; 620. a receiving end; 630. and (7) a pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

Referring to fig. 1 to 5, the present embodiment provides a detection fixture for detecting a PI element 600, where the PI element 600 is a U-shaped photoelectric sensor, and includes an emitting end 610 and a receiving end 620 that are oppositely disposed. Specifically, the inspection jig includes a table 100, a fixing assembly 200, a shutter 310, an inspection assembly 400, and a display assembly 500. The fixing assembly 200, the shielding member 310 and the detecting assembly 400 are all arranged on the workbench 100, the PI element 600 can be fixedly installed on the fixing assembly 200, the shielding member 310 can move towards the fixing assembly 200 and is arranged between the transmitting end 610 and the receiving end 620 of the PI element 600, the detecting assembly 400 can move from a free position towards the fixing assembly 200 to a conducting position to be in contact with and electrically conducted with pins of the PI element 600, and the detecting assembly 400 can detect the PI element 600 and judge whether the PI element 600 is qualified; the display module 500 is electrically connected to the detection module 400, and the display module 500 can display the detection result information of the PI element 600 according to the determination information of the detection module 400.

In the present embodiment, first, the PI element 600 is fixedly mounted on the fixing assembly 200; secondly, the shielding member 310 is moved and placed between the emitting end 610 and the receiving end 620 of the PI element 600 to shield the light emitted from the emitting end 610, so that the light cannot reach the receiving end 620, and further the PI element 600 generates an electrical signal; then, the detection assembly 400 is moved and the detection assembly 400 is brought into contact with and electrically conducted with the pins of the PI element 600; finally, the qualified PI element 600 displayed by the display assembly 500 is assembled into the lens. Through the PI component 600 that the detection tool screening performance is the same to the signal of telecommunication that makes every qualified PI component 600 produce is the same, and then makes the reset position of every camera lens keep unanimous relatively, simplifies the debugging process of camera lens, effectively improves production efficiency, promotes the yields of camera lens.

In this embodiment, referring to fig. 3 to 4, the fixing assembly 200 includes a fixing block 210 and a pressing plate 220, the fixing block 210 is provided with a plurality of fixing grooves 213 at intervals along a length direction thereof, and the PI elements 600 can be disposed in the fixing grooves 213 in a one-to-one correspondence; the pressing plate 220 is provided with a plurality of fixing pins 221 at intervals along the length direction thereof, the fixing pins 221 and the fixing grooves 213 are arranged in a one-to-one correspondence, and the pressing plate 220 can move from an initial position to a fixing position towards the fixing block 210 so that the fixing pins 221 press the PI element 600 in the fixing grooves 213, so that the structure is simple, and the fixing of the PI element 600 is facilitated. In this embodiment, due to the design of the plurality of fixing grooves 213, the plurality of PI elements 600 can be detected at the same time, thereby effectively improving the detection efficiency.

Specifically, the fixed thimble 221 may be a spring thimble, the spring thimble includes a sleeve, a push rod and a pressure spring, the sleeve is disposed on the pressure plate 220, a sliding slot 241 is disposed in the sleeve, the push rod is inserted into the sliding slot 241 and slidably connected to the sliding slot 241, the pressure spring is disposed in the sleeve, a first end of the pressure spring is connected to the sleeve, and a second end of the pressure spring is connected to the push rod. In the present embodiment, even if there is a deviation in the dimension and the mounting position between the push rods due to the compression spring, the push rod of each of the fixed push pins 221 simultaneously stably presses and fixes the PI element 600.

Specifically, the fixing block 210 and the pressing plate 220 are both extended along the length direction of the table 100, and the fixing thimble 221 is extended along the width direction of the table 100, where a direction in fig. 2 is the length direction of the table 100, and b direction is the width direction of the table 100.

In the present embodiment, referring to fig. 6, the fixing groove 213 is provided with an avoiding groove 214 on one side facing the pressing plate 220, and when the pressing plate 220 is located at the fixing position, the end of the fixing pin 221 passes through the avoiding groove 214 to abut against the PI element 600, so as to fix the PI element 600.

Further, a through hole 215 communicating with the fixing groove 213 is formed at a side of the fixing groove 213 facing away from the pressing plate 220, and the shielding member 310 can be inserted into the through hole 215 and then placed between the emitting end 610 and the receiving end 620 of the PI element 600.

Further, the fixing block 210 includes a supporting plate 211 and a mounting plate 212 disposed on the supporting plate 211, the fixing groove 213 and the receding groove 214 are both disposed on the mounting plate 212, and a through hole 215 is formed between the supporting plate 211 and the mounting plate 212.

In this embodiment, with continued reference to fig. 1 to fig. 3, the fixing assembly 200 further includes a slide rail and slider mechanism 230, a first engaging member 240 and a second engaging member 250, the slide rail and slider mechanism 230 includes a slide rail disposed on the workbench 100 and a slider slidably connected to the slide rail, and the pressing plate 220 is fixed on the slider; the first clamping member 240 is arranged on the workbench 100; the second engaging member 250 is connected to the pressing plate 220, and when the pressing plate 220 is located at the fixing position, the second engaging member 250 can engage with the first engaging member 240 to fix the pressing plate 220, so as to ensure that the PI element 600 is pressed into the fixing groove 213 by the fixing pin 221 during the whole detection process.

Specifically, the slide rail extends in the width direction of the table 100.

Specifically, the slide rail slider mechanism 230 is provided in plurality and spaced apart along the length of the table 100. Preferably, the rail slider mechanism 230 is provided with 2.

Specifically, the first clamping member 240 is provided with a sliding groove 241 and a first clamping groove 242 and a second clamping groove 243 which are communicated with the sliding groove 241, and the first clamping groove 242 and the second clamping groove 243 are respectively arranged at two ends of the sliding groove 241; the first end of the second clamping member 250 is rotatably connected with the pressure plate 220, the second end of the second clamping member 250 penetrates through the sliding groove 241, and the second clamping member 250 can move in the sliding groove 241 to drive the pressure plate 220 to switch between the initial position and the fixed position; when the pressing plate 220 is placed at the initial position, the second engaging member 250 can rotate and engage with the first engaging groove 242; when the pressing plate 220 is fixed, the second engaging member 250 can rotate and engage with the second engaging groove 243, which is simple in structure and convenient in operation.

Further, the first clamping pieces 240 are provided with two and symmetrically arranged at the edges of two sides of the workbench 100 along the length direction thereof, the second clamping pieces 250 are provided with two and arranged corresponding to the first clamping pieces 240, and the symmetrical design is convenient to operate.

Further, the first end of the second clamping member 250 is provided with a hinge 251, and the hinge 251 may be rotatably connected to the pressure plate 220 through an optical axis, or may be rotatably connected to the pressure plate 220 through a connection manner of an optical axis and a bearing, or other manners, which is not limited herein. In the present embodiment, the second clamping member 250 rotates around the width direction of the table 100.

Further, the second end of the second clamping member 250 is provided with a holding portion 252, and the holding portion 252 may include, but is not limited to, a sphere shape and a cylinder shape, so as to improve the comfort of holding and moving the second clamping member 250.

Further, first joint groove 242 and second joint groove 243 all set up in the below of spout 241 and with spout 241 between form U type groove, make things convenient for second joint spare 250 joint, and prevent effectively that second joint spare 250 from breaking away from.

Further, the first clamping member 240 is further provided with a long hole 244, the first clamping member 240 can penetrate through the long hole 244 through a screw connector and is fixed with the workbench 100 through the screw connector, and the first clamping member 240 is convenient to adjust the position through the design of the long hole 244.

In this embodiment, referring to fig. 7 to 9, the detection fixture further includes an adjusting plate 320, a driving member 330 and a first elastic body 340, the adjusting plate 320 is disposed on the worktable 100, a through hole 321 is disposed on the adjusting plate 320, and the shielding member 310 is disposed in the through hole 321; the driving member 330 is disposed in the through hole 321 and located at an end of the shielding member 310 opposite to the fixing assembly 200, and the driving member 330 can move along the through hole 321 and drive the shielding member 310 to move; the first elastic body 340 is disposed in the through hole 321, a first end of the first elastic body 340 is connected to the adjustment plate 320, a second end of the first elastic body 340 is connected to the shutter 310, and the first elastic body 340 is configured to force the shutter 310 to be moved toward the fixing assembly 200. In this embodiment, the driving member 330 is moved toward the fixed block 210, so that the driving member 330 presses the shielding member 310, and the shielding member 310 moves toward the PI element 600 on the fixed block 210, in the process, the first elastic body 340 accumulates elastic potential energy; when the driving member 330 is moved away from the fixed block 210, the first elastic body 340 releases the elastic potential energy and acts on the shielding member 310, and the shielding member 310 is forced to be moved toward the fixed block 210, so that the position of the shielding member 310 is adjusted, and the device has a simple structure and is convenient to operate.

Specifically, the adjustment plate 320 is mounted on the support plate 211.

Specifically, the through-hole 321 is provided extending in the width direction of the table 100. Further, the shielding member 310 may have a cylindrical shape and extend in the width direction of the table 100.

In the present embodiment, as shown in fig. 7 to 9, the end of the shielding member 310 facing the fixing block 210 is provided with a shielding portion 311, the shielding portion 311 can be disposed between the emitting end 610 and the receiving end 620 of the PI element 600, and shields the light emitted from the emitting end 610 so that the light cannot reach the receiving end 620. In this embodiment, the shielding portion 311 can be designed to be a long plate according to the shape and size of the member for shielding the PI element 600 in the in-lens group, so as to better simulate the working scene of the PI element 600 in the lens.

Further, the shielding element 310 is sleeved with the first elastic body 340, the through hole 321 includes a first stepped hole 3211 and a second stepped hole 3212 disposed at an end of the first stepped hole 3211 facing away from the fixed block 210, a first end of the first elastic body 340 abuts against a stepped surface between the first stepped hole 3211 and the second stepped hole 3212, a second end of the shielding element 310 facing away from the fixed block 210 is circumferentially provided with an annular protrusion 312, and a second end of the first elastic body 340 abuts against the annular protrusion 312. In this embodiment, the first stepped hole 3211 and the shielding element 310 may be in shaft hole clearance fit, and similarly, the second stepped hole 3212 and the annular protrusion 312 may also be in shaft hole clearance fit, so that the shielding element 310 is stably disposed in the through hole 321. Preferably, the first elastic body 340 may be a spring.

Furthermore, a limiting protrusion 313 is arranged on the periphery of the annular protrusion 312, a limiting groove 3213 connected to the limiting protrusion 313 in a matching manner is arranged on the surface of the second stepped hole 3212, the limiting protrusion 313 is disposed in the limiting groove 3213, and the surface of the limiting protrusion 313 is attached to the surface of the limiting groove 3213, so that the circumferential positioning of the shielding element 310 is realized, the shielding element 310 is effectively prevented from rotating, and the shielding portion 311 is prevented from interfering with the PI element 600.

In the present embodiment, with continued reference to fig. 7 to 9, the surface of the driving member 330 is provided with an external thread, the through hole 321 is provided with an internal thread matching with the external thread of the driving member 330, and the driving member 330 is in threaded connection with the through hole 321. The through hole 321 further includes a third stepped hole 3214 disposed at an end of the second stepped hole 3212 opposite to the fixing block 210, the driving member 330 is disposed in the third stepped hole 3214, and an internal thread is disposed in the third stepped hole 3214. In this embodiment, the stepped surfaces of the third stepped hole 3214 and the second stepped hole 3212 can limit the moving distance of the driving member 330 toward the fixing block 210, thereby preventing the blocking member 310 from moving excessively.

Further, an end of the driving member 330 facing away from the fixing block 210 is provided with a connection groove 331 for matching with a screwdriver, and the connection groove 331 may include, but is not limited to, a straight line shape and a cross shape.

Further, one end of the driving element 330 facing the fixing block 210 is provided with a receiving groove 332, and one end of the shielding element 310 facing away from the fixing block 210 is disposed in the receiving groove 332, so as to facilitate the installation of the driving element 330 and the shielding element 310.

In this embodiment, with continued reference to fig. 1 to 3, the detecting assembly 400 includes a moving plate 410, a guiding assembly 420 and a second elastic body 430, the moving plate 410 is provided with a detecting probe 411, the detecting probe 411 can contact and electrically conduct with the pin of the PI element 600, the guiding assembly 420 is disposed between the worktable 100 and the moving plate 410, the guiding assembly 420 is configured to guide the moving plate 410 to reciprocate relative to the fixed assembly 200, one end of the second elastic body 430 is connected to the worktable 100, the other end of the second elastic body 430 is connected to the moving plate 410, and the second elastic body 430 is configured to force the moving plate 410 to move from the conducting position to the free position. In this embodiment, before the detection, the moving plate 410 moves along the guiding assembly 420 to the conducting position towards the fixing assembly 200, so that the detection probe 411 contacts and is electrically conducted with the pin of the PI element 600, and the detection assembly 400 can detect the PI element 600, and in this process, the second elastic body 430 accumulates elastic potential energy; after the detection is completed, the second elastic body 430 releases the elastic potential energy and acts on the moving plate 410, so that the moving plate 410 moves to the free position, and the device has a simple structure and is convenient to operate.

Preferably, the second elastic body 430 may be a spring.

Specifically, the detecting probes 411 are provided with a plurality of pins and can be connected with the pins of the PI element 600 in a one-to-one correspondence manner, the PI element 600 in this embodiment includes 4 pins, that is, 4 detecting probes 411 are provided at positions of the moving plate 410 corresponding to each PI element 600.

Specifically, the moving plate 410 is provided with a first circuit board 412, and the detection probes 411 are electrically connected to the first circuit board 412, and the first circuit board 412.

In particular, the detection probe 411 may also be a pogo pin.

Specifically, the guiding assembly 420 includes a guiding shaft 421 and a guiding shaft 421, the guiding shaft 421 is disposed on the workbench 100, the sliding bearing 422 is fixedly connected to the moving plate 410, the sliding bearing 422 is slidably sleeved on the guiding shaft 421, and the second elastic body 430 is sleeved on the guiding shaft 421.

Further, two guide assemblies 420 are symmetrically disposed at both sides of the table 100 along the length direction thereof, so that the moving plate 410 can stably reciprocate.

In this embodiment, the detecting assembly 400 includes a measuring box (not shown in the figure), the measuring box can be electrically connected to the PI element 600 and can detect the PI element 600, and a display screen (not shown in the figure) is disposed on the measuring box and can display the detecting information of the PI element 600. In this embodiment, before detection, the detection fixture needs to be debugged, and the specific debugging method is as follows: first, a PI element 600 is fixed in one of the fixing grooves 213; then, the shielding member 310 corresponding to the fixing groove 213 is moved toward the fixing unit 200, and the detection information displayed on the display screen, which is the voltage value of each pin of the PI element 600 in this embodiment, is observed, and when the voltage value on the display screen is within the range actually used by the PI element 600, the shielding member 310 is fixed, and the PI element 600 is taken out of the fixing groove 213 and fixed in the other fixing groove 213, and the above operations are repeated until all the shielding members 310 are fixed. After the debugging is completed, the plurality of PI elements 600 may be placed in the fixing groove 213 in a one-to-one correspondence and simultaneously tested. The PI elements 600 screened by the detection jig have the same performance in a mode of detection after debugging. In this embodiment, the driving member 330 can be fixed by glue, so that the glue does not affect the reuse of the detection fixture.

Preferably, the measuring box can be disposed below the workbench 100, and of course, can be disposed at other positions of the workbench 100, which is not limited herein.

Further, the measuring box includes a second circuit board 440 and a voltage detecting chip (not shown) disposed on the second circuit board 440, the display screen is electrically connected to the second circuit board 440, the second circuit board 440 is electrically connected to the first circuit board 412 through a wire, and the first circuit board 412 and the second circuit board 440 are both provided with a connecting terminal connected to the wire. In this embodiment, the voltage value of each pin of the PI element 600 is detected by the voltage detection chip. Preferably, the conductive lines may be flat cables.

Further, the display module 500 is electrically connected to the measurement box, the measurement box further includes a control element (not shown in the figure) disposed on the second circuit board 440, the control element may include but is not limited to a single chip, the control element receives the voltage value detected by the voltage detection chip and sends the voltage value to the display screen for displaying, and the control element determines whether the PI element 600 is qualified or not through the voltage value detected by the voltage detection chip, and displays the detection result information of the PI element 600 through the display module 500.

In the present embodiment, with continued reference to fig. 1 to 3, the display assembly 500 includes a green signal lamp 511 and a red signal lamp 512 electrically connected to the detection assembly 400, when the PI element 600 detected by the detection assembly 400 is qualified, the green signal lamp 511 is turned on, and the red signal lamp 512 is turned off; when the PI element 600 detected by the detection assembly 400 is not qualified, the green signal lamp 511 is turned off, and the red signal lamp 512 is turned on. Of course, the display assembly 500 may be in other forms and is not intended to be unduly limited herein.

Specifically, a plurality of green signal lamps 511 and red signal lamps 512 are provided, and are provided in one-to-one correspondence with the fixing grooves 213. Further, the green signal lamp 511 and the red signal lamp 512 are disposed on the third circuit board 510, and the third circuit board 510 is fixed on the workbench 100 and extends along the length direction of the workbench 100. In this embodiment, the third circuit board 510 may also be electrically connected to the second circuit board 440 through a wire, and the third circuit board 510 is also provided with a connection terminal connected to the wire.

In the present embodiment, the connection means not specifically described herein may be a common fixed connection means such as a threaded connection, a welding or an adhesive connection, as required.

Exemplarily, the method for using the detection jig specifically comprises the following steps:

and S100, calibrating the detection jig.

In this embodiment, step S100 specifically includes the following steps:

and S110, fixing one PI element 600 in one fixing groove 213.

Specifically, first, the PI element 600 is placed in the fixing groove 213; then, the holding portion 252 is pushed to drive the pressing plate 220 to move to the fixing position toward the fixing block 210 through the second engaging member 250, so that the fixing pin 221 presses the PI element 600 into the fixing groove 213, and meanwhile, tweezers or other tools are used to touch the PI element 600 and observe whether the surface of the PI element 600 is attached to the bottom of the fixing groove 213. In this embodiment, if the PI is floating, the calibration accuracy is affected.

S120, the moving plate 410 is moved toward the fixed assembly 200 so that the detection probe 411 contacts the lead 630 of the PI element 600.

S130, moving the shielding member 310 toward the fixing assembly 200, and observing the voltage value displayed by the display screen, and fixing the shielding member 310 when the voltage value in the display screen is within the range actually used by the PI element 600.

Specifically, the driving member 330 is rotated by a screwdriver to adjust the position of the shutter 310, and the driving member 330 is fixed by glue to fix the shutter 310.

Specifically, the detection jig is not powered on during steps S110 and S120, and powered on during step S130.

S140, taking out the PI element 600 from the fixing groove 213 and fixing it in another fixing groove 213, and repeating the steps S120 and S130 until all the shutters 310 are fixed.

In this embodiment, the same PI element 600 is used to calibrate the detection fixture to ensure the calibration accuracy.

It should be mentioned that, before the shielding member 310 is fixed, the size of the position information of the shielding portion 311 relative to the PI element 600 can be obtained by measuring the moving distance of the driving member 330, and by comparing the position information, it can be effectively determined whether the calibration position of the shielding member 310 is accurate, and the size of the position that needs to be shielded when the PI element 600 is actually used can be estimated, which is convenient for assembling and debugging the lens at the later stage.

And S200, correspondingly fixing a plurality of PI elements 600 to be detected in the fixing grooves 213 one by one and detecting.

Specifically, the green signal lamp 511 corresponding to the detected qualified PI element 600 is turned on, and the red signal lamp 512 is turned off; the defective PI element 600 is detected, the green light 511 is off, and the red light 512 is on.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A detection jig for detecting PI elements (600), characterized in that, the detection jig includes:

a table (100);

the fixing assembly (200) is arranged on the workbench (100), and the PI element (600) can be fixedly installed on the fixing assembly (200);

a shutter (310) arranged on the worktable (100), the shutter (310) being movable towards the fixed assembly (200) and interposed between the transmitting end (610) and the receiving end (620) of the PI element (600);

the detection assembly (400) is arranged on the workbench (100), the detection assembly (400) can move from a free position to a conducting position towards the fixing assembly (200) so as to be in contact with pins of the PI element (600) and be electrically conducted, and the detection assembly (400) can detect the PI element (600) and judge whether the PI element (600) is qualified;

and the display assembly (500) is electrically connected with the detection assembly (400), and the display assembly (500) can display the detection result information of the PI element (600) according to the judgment information of the detection assembly (400).

2. The inspection jig of claim 1, wherein the fixing assembly (200) comprises:

the fixing block (210) is provided with a plurality of fixing grooves (213) at intervals along the length direction of the fixing block (210), and the PI elements (600) can be correspondingly arranged in the fixing grooves (213) one by one;

the pressing plate (220) is provided with a plurality of fixing ejector pins (221) at intervals along the length direction of the pressing plate (220), the fixing ejector pins (221) and the fixing grooves (213) are arranged in a one-to-one correspondence mode, and the pressing plate (220) can move from an initial position to a fixing position towards the fixing block (210) so that the fixing ejector pins (221) can press the PI element (600) in the fixing grooves (213).

3. The inspection fixture of claim 2, wherein the fixture assembly (200) further comprises:

the sliding rail and sliding block mechanism (230) comprises a sliding rail arranged on the workbench (100) and a sliding block connected with the sliding rail in a sliding way, and the pressurizing plate (220) is fixed on the sliding block;

the first clamping piece (240) is arranged on the workbench (100);

second joint spare (250), with pressure plate (220) are connected, work as pressure plate (220) are located when fixed position, second joint spare (250) can with first joint spare (240) joint is in order to fix pressure plate (220).

4. The detection jig according to claim 3, wherein the first clamping member (240) is provided with a sliding groove (241) and a first clamping groove (242) and a second clamping groove (243) which are communicated with the sliding groove (241), and the first clamping groove (242) and the second clamping groove (243) are respectively arranged at two ends of the sliding groove (241);

the first end of the second clamping piece (250) is rotatably connected with the pressurizing plate (220), the second end of the second clamping piece (250) penetrates through the sliding groove (241), and the second clamping piece (250) can move in the sliding groove (241) to drive the pressurizing plate (220) to switch between the initial position and the fixed position; wherein,

when the pressurizing plate (220) is arranged at the initial position, the second clamping piece (250) can rotate and is clamped with the first clamping groove (242);

when the pressurizing plate (220) is arranged at the fixed position, the second clamping piece (250) can rotate and is clamped with the second clamping groove (243).

5. The inspection jig of claim 1, further comprising:

the adjusting plate (320) is arranged on the workbench (100), a through hole (321) is formed in the adjusting plate (320), and the shielding piece (310) penetrates through the through hole (321);

the driving part (330) is arranged in the through hole (321) and is positioned at one end, back to the fixing component (200), of the shielding part (310), and the driving part (330) can move along the through hole (321) and drive the shielding part (310) to move;

a first elastic body (340) disposed in the through hole (321), a first end of the first elastic body (340) being connected to the adjustment plate (320), a second end of the first elastic body (340) being connected to the shutter (310), the first elastic body (340) being configured to force the shutter (310) to be moved toward the fixing assembly (200).

6. The detection jig as claimed in claim 5, wherein the surface of the driving member (330) is provided with an external thread, the through hole (321) is provided with an internal thread matching with the external thread of the driving member (330), and the driving member (330) is in threaded connection with the through hole (321).

7. The inspection jig of claim 1, wherein the inspection assembly (400) comprises:

a moving plate (410), wherein a detection probe (411) is arranged on the moving plate (410), and the detection probe (411) can be contacted with a pin of the PI element (600) and is electrically conducted;

a guide assembly (420) disposed between the table (100) and the moving plate (410), the guide assembly (420) being configured to guide a reciprocating movement of the moving plate (410) with respect to the fixed assembly (200);

a second elastic body (430), one end of the second elastic body (430) is connected to the table (100), the other end of the second elastic body (430) is connected to the moving plate (410), and the second elastic body (430) is configured to apply a force for moving the moving plate (410) from the conducting position to the free position.

8. The inspection fixture of claim 7, wherein the guide assembly (420) comprises:

a guide shaft (421) provided on the table (100);

and the sliding bearing (422) is fixedly connected with the moving plate (410), and the sliding bearing (422) is sleeved on the guide shaft (421) in a sliding manner.

9. The testing fixture according to claim 1, characterized in that the testing assembly (400) comprises a measuring box, the measuring box can be electrically communicated with the PI element (600) and can test the PI element (600), and a display screen is arranged on the measuring box and can display the testing information of the PI element (600).

10. The inspection jig according to claim 1, characterized in that the display assembly (500) comprises a green signal lamp (511) and a red signal lamp (512) electrically connected with the inspection assembly (400), when the PI element (600) inspected by the inspection assembly (400) is qualified, the green signal lamp (511) is turned on, and the red signal lamp (512) is turned off; when the PI element (600) detected by the detection component (400) is unqualified, the green signal lamp (511) is extinguished, and the red signal lamp (512) is lightened.

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