CN220795275U

CN220795275U - Detection jig

Info

Publication number: CN220795275U
Application number: CN202322078304.7U
Authority: CN
Inventors: 于明程
Original assignee: Shenzhen Sunway Communication Co Ltd
Current assignee: Shenzhen Sunway Communication Co Ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-04-16
Anticipated expiration: 2033-08-02

Abstract

The utility model discloses a detection jig which comprises a base, a first die, a second die and a PLC (programmable logic controller), wherein a groove for accommodating a to-be-detected piece is formed in the upper side of the first die, the second die is arranged on the upper side of the first die, at least one first detection module is arranged on the second die, the first detection module comprises a first probe and a second probe, the second die has a movement stroke which is close to and far from the first die along the up-down direction, and the PLC is connected with the first probe and the second probe through wires. When the second mould moves downwards, the second probe is abutted to the LDS area of the to-be-detected piece, if the conductive foam exists, the first probe is contacted with the conductive foam, at the moment, the first probe, the conductive foam, the corresponding LDS area and the second probe are conducted, the PLC controller detects a conducting signal, if the conductive foam does not exist, the first probe is not contacted with the conductive foam, the PLC controller does not detect the conducting signal, and whether the conductive foam exists is judged according to the detection of the PLC controller.

Description

Detection jig

Technical Field

The utility model relates to the technical field of detection jigs, in particular to a detection jig.

Background

In other portable terminal devices such as flat panels, mobile phones and the like, more and more antennas are designed into the form that an LDS bracket welds wires and is attached with conductive foam, wherein an LDS area of the LDS bracket is a conductive area formed by the wires, and the conductive foam is used for connecting the ground of the antennas with the ground of a main board of the whole machine. In the production process, the conductive foam is manually attached, the condition of missing the attachment exists, and in addition, the situation of falling off exists in the assembly process, if a product falling off by the foam flows out to a client, the performance is affected, and the function of the whole machine is poor and the customer complains, so that a detection jig for detecting the conductive foam is needed.

Disclosure of Invention

The utility model mainly aims to provide a detection jig which aims to detect whether conductive foam exists or not and avoid the problem that the conductive foam leaks to paste or falls off.

In order to achieve the above object, the present utility model provides a detection tool, comprising:

a base;

the first die is arranged on the upper side of the base, and a groove for accommodating a to-be-detected piece is formed in the upper side of the first die;

the second die is arranged on the upper side of the first die, at least one first detection module is arranged on the second die, the first detection module comprises a first probe corresponding to the position of conductive foam on a to-be-detected piece and a second probe corresponding to the LDS region of the to-be-detected piece, and the second die has a movement stroke along the up-down direction, which is close to and far from the first die; the method comprises the steps of,

and the PLC is respectively connected with the first probe and the second probe through wires.

Optionally, at least one second detection module is further disposed on the second mold, where the second detection module includes two third probes whose positions correspond to different positions of the LDS region;

the detection jig further comprises a resistance instrument in signal connection with the PLC controller, and the resistance instrument is connected with the two third probes through wires respectively.

Optionally, the detection jig further comprises a driving mechanism, and the driving mechanism comprises a cylinder connected with the PLC through a signal and a piston rod connected with the second die in a driving mode.

Optionally, be equipped with on the base and fix the box of cylinder, the box is close to one side of second mould is equipped with the slide rail that extends along the upper and lower direction, slidable mounting has the slider on the slide rail, the slider with piston rod or second mould fixed connection.

Optionally, an alignment column is arranged on the upper side of the first die;

and the bottom side of the second die is concavely provided with an alignment hole with the position and the shape corresponding to those of the alignment column.

Optionally, a pressing block with a shape corresponding to the groove is convexly arranged on the bottom side of the second die.

Optionally, the second probe is a telescopic sleeve telescopic rod structure.

Optionally, the front side and the rear side of the groove are provided with avoidance grooves, the depth of the avoidance grooves is not smaller than that of the groove, and the groove and the avoidance grooves are at least partially overlapped.

Optionally, the groove is provided with a through hole through which the first probe and the second probe pass.

Optionally, the base and the box are provided with buttons in signal connection with the PLC.

When the second mould moves downwards, the second probe is abutted to the LDS area of the to-be-detected piece, if the conductive foam exists, the first probe is in contact with the conductive foam, at the moment, the first probe, the conductive foam, the corresponding LDS area and the second probe are conducted, the first probe and the second probe are respectively connected to two interfaces of the PLC to form a detection passage, the conduction of the detection passage can be detected through the PLC, if the conductive foam does not exist, the first probe is not in contact with the conductive foam, the detection passage cannot be conducted, the detection passage cannot be detected by the PLC, whether the conductive foam exists can be judged according to the detection of the PLC, the number of the first detection modules can be set to be multiple, the lamination positions of the conductive foam at multiple positions of the LDS bracket can be detected simultaneously through the PLC, and the detection efficiency is high.

Drawings

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

FIG. 1 is an overall perspective view of the present utility model;

FIG. 2 is a perspective view of the second mold according to the present utility model moved upward;

fig. 3 is a perspective view of a first mold and a second mold according to the present utility model.

Reference numerals illustrate:

1. a base; 2. a first mold; 3. a second mold; 4. a driving mechanism; 5. a case; 21. a groove; 22. a positioning column; 23. an avoidance groove; 24. a through hole; 31. a first probe; 32. a second probe; 33. an alignment hole; 34. briquetting; 35. a third probe; 41. a cylinder; 42. a piston rod; 51. a slide rail; 52. a sliding block.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a detection jig, and fig. 1 to 3 are specific embodiments of the detection jig provided by the utility model.

Referring to fig. 1 to 3, the detection jig includes a base 1, a first mold 2, a second mold 3 and a PLC controller, the first mold 2 is disposed on the upper side of the base 1, a groove 21 for accommodating a part to be detected is disposed on the upper side of the first mold 2, the second mold 3 is disposed on the upper side of the first mold 2, at least one first detection module is disposed on the second mold 3, the first detection module includes a first probe 31 corresponding to a conductive foam position on the part to be detected and a second probe 32 corresponding to an LDS region of the part to be detected, the second mold 3 has a movement stroke along an up-down direction approaching and away from the first mold 2, and the PLC controller is connected with the first probe 31 and the second probe 32 through wires respectively.

In the utility model, when the second mold 3 moves downwards, the second probe 32 is abutted to the LDS area of the part to be inspected, if the conductive foam exists, the first probe 31 is in contact with the conductive foam, at this time, the first probe 31, the conductive foam, the corresponding LDS area and the second probe 32 are conducted, the first probe 31 and the second probe 32 are respectively connected to two interfaces of the PLC controller to form a detection channel, the conduction of the detection channel can be detected by the PLC controller, if the conductive foam does not exist, the first probe 31 is not in contact with the conductive foam, the detection channel cannot be conducted, the PLC controller detects that the detection channel is not conducted, whether the conductive foam exists can be judged according to the detection of the PLC controller, the number of the first detection modules can be set to be multiple, the lamination positions of the conductive foam at multiple positions of the LDS bracket can be detected simultaneously by the PLC controller, and the detection efficiency is high.

Further, AT least one second detection module is further disposed on the second mold 3, the second detection module includes two third probes 35 whose positions correspond to different positions of the LDS region, the detection tool further includes a resistor meter connected to the PLC controller by a signal, preferably, the resistor meter is an AT5110 resistor meter, the resistor meter is connected to two third probes 35 by a wire, and resistance values of the LDS region corresponding to the two third probes 35 can be detected by the resistor meter, which means that the number of the second detection modules is not limited, and the second detection module can be specifically set according to actual needs.

The detection jig further comprises a driving mechanism 4, and the driving mechanism 4 is not limited herein, and can be specifically selected according to actual needs, for example, the driving mechanism 4 can be composed of a motor, a screw rod and a sliding seat, and can also be a telescopic motor, and in the preferred embodiment of the present utility model, the driving mechanism 4 is composed of a cylinder 41 and a piston rod 42, the piston rod 42 is in transmission connection with the second mold 3, the cylinder 41 drives the piston rod 42, and the piston rod 42 drives the second mold 3 to move up and down.

The base 1 is provided with a box body 5 for fixing the air cylinder 41, one side, close to the second die 3, of the box body 5 is provided with a sliding rail 51 extending along the up-down direction, the box body 5 is used for fixing the air cylinder 41 and the sliding rail 51, a sliding block 52 is slidably arranged on the sliding rail 51, the sliding block 52 can move up and down along the sliding rail 51, the sliding block 52 is fixedly connected with the piston rod 42 or the second die 3, and the up-down movement of the piston rod 42 or the second die 3 can be guided in the up-down direction and limited in the horizontal direction through the sliding rail 51 and the sliding rail 51.

The upper side of the first mold 2 is provided with an alignment post 22, the bottom side of the second mold 3 is concavely provided with an alignment hole 33 with a position and a shape corresponding to those of the alignment post 22, when the cylinder 41 and the piston rod 42 drive the second mold 3 to move downwards, the alignment post 22 just stretches into the alignment hole 33, and the second mold 3 can be aligned through the alignment post 22 and the alignment hole 33, so that the first probe 31 and the second probe 32 are aligned with the detection position of the to-be-detected piece, and the problem that the detection position deviation of the first probe 31 or the second probe 32 is influenced due to the position deviation of the second mold 3 in the horizontal direction is avoided.

The bottom side of the second mold 3 is convexly provided with a pressing block 34 with a shape corresponding to the groove 21, when the second mold 3 moves downwards, the pressing block 34 stretches into the groove 21 and presses a to-be-detected piece in the groove 21 to press the to-be-detected piece, so that the to-be-detected piece is prevented from being placed in the groove 21 to be uneven to influence a detection result, wherein the first probe 31, the second probe 32 and the third probe 35 are arranged on the lower side of the pressing block 34, or the first probe 31, the second probe 32 and the third probe 35 penetrate through the second mold 3 and the pressing block 34 and extend downwards to the lower side of the pressing block 34.

The second probe 32 is configured to be abutted to an LDS area of a workpiece to be inspected and form a passage with the first probe 31, and in order to make the present utility model have versatility, the second probe 32 is of a telescopic sleeve structure, so that the second probe 32 is arranged in a telescopic manner, so that the length of the second probe 32 can be adjusted according to different types of workpieces to be inspected.

The front side and the rear side of the groove 21 are provided with avoidance grooves 23, the depth of the avoidance grooves 23 is not smaller than that of the groove 21, the groove 21 at least partially coincides with the avoidance grooves 23, and after detection is completed, fingers of workers can conveniently extend into the avoidance grooves 23 to take out to-be-detected pieces in the groove 21.

The groove 21 is penetrated with a through hole 24 through which the first probe 31, the second probe 32 and the third probe 35 pass, when the second mold 3 is pressed down when no workpiece to be inspected is placed in the groove 21, the first probe 31, the second probe 32 and the third probe 35 can pass through the through hole 24 without colliding with the bottom wall of the groove 21, so that the problem that the first probe 31, the second probe 32 and the third probe 35 are damaged due to the error of staff can be avoided.

The base 1 and the box 5 are provided with buttons connected with the PLC through signals, wherein the buttons can comprise a power starting button, a starting detection button and the like, and optionally, one side of the box 5 is provided with a red indicator lamp and a green indicator lamp connected with the PLC through signals.

It can be appreciated that when the number of the first detecting modules is one, the process of detecting whether the conductive foam exists is as follows: placing a to-be-detected piece on the first die 2, pressing a detection button, wherein the PLC controls the air cylinder 41 to enable the piston rod 42 to move downwards, the piston rod 42 pushes the second die 3 to move downwards, the second probe 32 is abutted to an LDS region corresponding to the to-be-detected piece, if conductive foam exists at a detection position on the to-be-detected piece, the first probe 31 is abutted to the conductive foam, at the moment, the first probe 31, the conductive foam, the corresponding LDS region and the second probe 32 are conducted and form a detection passage with the PLC, and the PLC can detect that the detection passage is conducted, namely the conductive foam exists; if the detection position on the to-be-detected piece is not conductive foam, the first probe 31 is not abutted to the to-be-detected piece, the detection passage cannot be conducted, and the fact that the detection passage is not conducted, namely the absence of conductive foam, is detected by the PLC controller can be detected.

When the number of the second detection modules is one, the resistance process of detecting the LDS area is as follows: placing the to-be-detected piece on the first die 2, pressing down a detection button, controlling the air cylinder 41 by the PLC to enable the piston rod 42 to move downwards, pushing the second die 3 to move downwards by the piston rod 42, enabling the two third probes 35 to be abutted to LDS areas corresponding to the to-be-detected piece, enabling the two third probes 35 to be connected to two interfaces of the resistor through wires respectively, and detecting whether the resistance value of the LDS areas is normal or not through the resistor.

The process of detecting whether the conductive foam exists or not and the process of detecting the resistance of the LDS area can be performed simultaneously, the detection efficiency is higher, and when the PLC detects that the conductive foam exists and the resistance of the LDS area is normal, the PLC controls the green signal lamp to be lighted and controls the second die 2 to move upwards, namely, a detection passing signal is output; when the PLC detects that the conductive foam is not present or the resistance meter detects that the resistance of the LDS area is abnormal, the PLC controls the red signal lamp to be turned on, namely, a detection failure signal is output.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A detection jig, its characterized in that includes:

a base;

2. The inspection jig of claim 1, wherein the second mold is further provided with at least one second inspection module, the second inspection module comprising two third probes positioned corresponding to different positions of the LDS region;

3. The inspection jig of claim 1, further comprising a drive mechanism comprising a cylinder signally connected to the PLC controller and a piston rod drivingly connected to the second die.

4. The detecting jig according to claim 3, wherein a case for fixing the cylinder is provided on the base, a slide rail extending in the up-down direction is provided on a side of the case close to the second die, and a slider is slidably mounted on the slide rail, and is fixedly connected with the piston rod or the second die.

5. The inspection jig according to claim 1, wherein an upper side of the first mold is provided with an alignment post;

6. The inspection jig according to claim 1, wherein the bottom side of the second mold is provided with a pressing block having a shape corresponding to the groove.

7. The inspection jig of claim 1, wherein the second probe is a telescoping sleeve telescoping rod structure.

8. The inspection jig according to claim 1, wherein the front side and the rear side of the groove are provided with avoiding grooves, the depth of the avoiding grooves is not smaller than the depth of the groove, and the groove is at least partially overlapped with the avoiding grooves.

9. The inspection jig of claim 1, wherein the recess is formed with a through hole through which the first probe and the second probe pass.

10. The inspection jig of claim 4, wherein the base and the box are provided with buttons for signal connection with the PLC controller.