CN221465567U - Detection device of display screen - Google Patents

Abstract

The utility model discloses a detection device of a display screen, which comprises a detector, wherein the upper surface of the detector is a detection platform, a supporting mechanism is arranged on the detection platform, and an intelligent floating detection mechanism is arranged on the supporting mechanism. The automatic control device can adapt to the detection of different types of display screens, can not damage the display screens, ensures the accuracy of test results, and can improve the working efficiency by automatic control.

Description

Detection device of display screen

Technical Field

The utility model relates to the technical field of display screen testing, in particular to a detection device for a display screen.

Background

Nowadays, automobiles are various, and under the guidance of industrial intelligent cabin concepts, the demands on automobile display screens are increasingly diversified. The quality of the display screen is becoming increasingly important under the vast demands. The detection and verification of the bare screen before and after assembly is an indispensable step before the display screen is assembled to the cabin. In the present stage, most automobile manufacturers still stay on the verification of the screen by directly performing plug-in test by using an automobile connector. The inspection mode has complicated steps, low efficiency and extremely easy damage to the automobile connector, thereby causing additional cost increase, and in addition, the phenomenon that the connection port on the display screen is damaged due to manual plugging is also caused.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a detection device for a display screen, which has higher precision, higher efficiency and more cost saving.

The technical scheme for solving the technical problems is as follows: the intelligent floating detector comprises a detector, wherein the upper surface of the detector is a detection platform, a supporting mechanism is arranged on the detection platform, and an intelligent floating detection mechanism is arranged on the supporting mechanism.

The beneficial effects of adopting above-mentioned technical scheme are:

The automatic control device can adapt to the detection of different types of display screens, can not damage the display screens, ensures the accuracy of test results, and can improve the working efficiency by automatic control.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the intelligent floating detection mechanism comprises a mounting plate and a sliding block, wherein the mounting plate is fixed on the supporting mechanism, a linear driving mechanism is fixed at the upper end of the mounting plate, the output end of the linear driving mechanism is horizontally arranged and connected with the sliding block through a floating joint, the sliding block is slidably connected with the upper end of the mounting plate, and a high-frequency testing module and a probe testing module are fixedly connected to the sliding block through fixing plates.

The beneficial effect of adopting above-mentioned further scheme is through cylinder drive slider horizontal migration, and the slip drives high frequency test module and probe test module and detects the display screen, and sets up the floating joint between slider and the linear drive mechanism's the output, and the floating connection can guarantee that high frequency test module and probe test module can not damage the display screen when the test.

Further, the high-frequency test module comprises a high-frequency fixing block, a high-frequency floating block, a high-frequency probe head and a high-frequency guide shaft, wherein the high-frequency fixing block is fixedly connected with the fixing plate, one end of the high-frequency guide shaft penetrates through the high-frequency floating block in a sliding mode and is fixedly connected with the high-frequency fixing block, the high-frequency probe head is installed on the high-frequency fixing block, a first settling groove and a second settling groove are respectively formed in one side, opposite to the high-frequency floating block, of the high-frequency fixing block, a high-frequency spring is sleeved on the high-frequency guide shaft, and two ends of the high-frequency spring are respectively abutted to the first settling groove and the second settling groove.

The high-frequency guide shaft is fixedly connected with the high-frequency fixing block, the high-frequency floating block is arranged on the high-frequency guide shaft in a sliding mode, the high-frequency guide shaft is sleeved with the spring, and the relative position of the test module and the display screen test port can be greatly improved while the test module can not damage products in a hard touch mode in the inserting process.

Further, the linear driving mechanism is an air cylinder.

The beneficial effect of adopting above-mentioned further scheme is that the operation is stable, and the noise of work is little.

Further, the fixed plate is connected with the sliding block through a connecting plate.

The fixing device has the beneficial effects of good fixing effect and convenience in assembly and disassembly.

Further, a limiting mechanism for limiting the position of the sliding block is arranged on the other side of the upper end of the mounting plate.

The beneficial effect of adopting above-mentioned further scheme is that prevent its excessive pressure through the stroke that installs spacing pin and control cylinder motion.

Further, the limiting mechanism is a limiting pin.

The beneficial effect of adopting above-mentioned further scheme is simple structure, and the installation of being convenient for is spacing effectual.

Further, supporting mechanism includes two intervals and parallel arrangement's support frame, two support frame fixed connection testing platform, and all be equipped with the constant head tank that is used for the location display screen on it, two connect through the crossbeam between the support frame, fixed connection on the crossbeam intelligent floating detection mechanism, the both ends of crossbeam are equipped with the positioning mechanism that is used for the secondary location display screen respectively.

The beneficial effect of adopting above-mentioned further scheme is through constant head tank and the dual location of location structure, guarantees the stability of display screen at the testing process.

Further, the positioning mechanism comprises a limiting block, the limiting block is fixed on one end of the cross beam, and a positioning pin is arranged on the limiting block.

The display screen fixing device has the beneficial effects that the display screen is convenient to fix through the locating pin on the limiting block.

Further, the cross beam is rotatably installed between the two supporting frames.

The adoption of the further scheme has the beneficial effects that the angle of the cross beam can be properly adjusted, so that the subsequent display screen installation and detection work is facilitated.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a side view of FIG. 1;

FIG. 5 is a schematic diagram of the structure of the intelligent float detection mechanism;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a cross-sectional view of FIG. 5;

FIG. 8 is a schematic view of the structure of the cylinder;

FIG. 9 is a schematic diagram of a high frequency test module;

FIG. 10 is a schematic diagram of a probe test module;

FIG. 11 is a schematic view of the structure of a floating joint;

FIG. 12 is a schematic view of a linear slide;

FIG. 13 is a schematic structural view of a solenoid valve;

FIG. 14 is a cross-sectional view of a high frequency test module;

FIG. 15 is a cross-sectional view of a probe test module;

FIG. 16 is a schematic view of the mounting position of the positioning mechanism;

FIG. 17 is a schematic view of the mounting location of the left locating pin;

fig. 18 is a schematic view of the installation position of the right locating pin.

In the drawings, the list of components represented by the various numbers is as follows:

1. a detector; 11. a detection platform; 2. a support mechanism; 21. a support frame; 221. a positioning mechanism; 22. a cross beam; 221. a positioning mechanism; 3. an intelligent floating detection mechanism; 31. a mounting plate; 32. a cylinder; 33. a slide block; 34. a fixing plate; 35. a linear slide rail; 36. a high frequency test module; 361. a high frequency fixed block; 362. a high frequency slider; 363. a high frequency probe head; 364. a high frequency guide shaft; 365. a high frequency spring; 37. a probe test module; 371. the probe tests the fixed block; 372. the probe tests the floating block; 373. a probe head is used for probe detection; 374. a probe test guide shaft; 375. a probe test spring; 38. a connecting plate; 39. an electromagnetic valve; 310. a floating joint; 311. and a limiting mechanism.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Example 1:

As shown in fig. 1-18, in this embodiment, a detection device for a display screen includes a detector 1, an upper surface of the detector 1 is a detection platform 11, a support mechanism 2 is installed on the detection platform 11, and an intelligent floating detection mechanism 3 is installed on the support mechanism 2.

The beneficial effects of this embodiment are: the supporting mechanism 2 is used for placing the display screen to be detected, and the intelligent floating detection mechanism 3 can automatically detect the display screen, so that the working efficiency is improved, and the cost is saved.

On the basis of the embodiment, the detection platform 11 can be provided with a plurality of support mechanisms 2, and each support mechanism 2 is correspondingly provided with an intelligent floating detection mechanism 3, so that quality detection of a plurality of display screens can be simultaneously satisfied.

The detector 1 of the present application belongs to the prior art.

Example 2

Preferably, on the basis of embodiment 1, the intelligent floating detection mechanism 3 includes a mounting plate 31 and a sliding block 33, the mounting plate 31 is fixed on the supporting mechanism 2, one side of the upper end of the mounting plate 31 is fixed with a linear driving mechanism, the output end of the linear driving mechanism is horizontally arranged and connected with the sliding block 33 through a floating joint 310, the sliding block 33 is slidably connected on the other side of the upper end of the mounting plate 31, and the sliding block 33 is fixedly connected with a high-frequency test module 36 and a probe test module 37 through a fixing plate 34.

The beneficial effects of this embodiment are: by starting the linear driving mechanism to drive the sliding block 33 to horizontally move, the sliding block 33 drives the high-frequency testing module 36 and the probe testing module 37 to detect the display screen, and the floating joint 310 is arranged between the sliding block 33 and the output end of the linear driving mechanism, so that the phenomenon of holding down caused by the inclination of the installation angle of the linear driving mechanism is avoided, and the assembly personnel are greatly facilitated in the installation and debugging processes.

On the basis of the above embodiment, the mounting plate 31 is provided with a plurality of linear slide rails 35 at intervals and in parallel, the sliding blocks 33 are slidably disposed on the linear slide rails 35, and the number of the linear slide rails 35 can be 2, so that the stability and the precise guiding type of the air cylinder in the pushing process can be ensured in a double linear slide rail mode.

Example 3

Preferably, on the basis of embodiment 2, the high-frequency test module 36 includes a high-frequency fixing block 361, a high-frequency floating block 362, a high-frequency probe head 363, and a high-frequency guide shaft 364, wherein the high-frequency fixing block 361 is fixedly connected with the fixing plate 34, one end of the high-frequency guide shaft 364 slides through the high-frequency floating block 362 and is fixedly connected with the high-frequency fixing block 361, the high-frequency probe head 363 is mounted on the high-frequency fixing block 361, a first mounting groove and a second mounting groove are respectively provided on opposite sides of the high-frequency fixing block 361 and the high-frequency floating block 362, a high-frequency spring 365 is sleeved on the high-frequency guide shaft 364, and two ends of the high-frequency spring 365 are respectively abutted against the first mounting groove and the second mounting groove.

The embodiment has the beneficial effects that the high-frequency guide shaft 364 is fixedly connected with the high-frequency fixed block 361, the high-frequency floating block 362 is arranged on the high-frequency guide shaft 364 in a sliding manner, the high-frequency spring 365 is sleeved on the high-frequency guide shaft 364, the test module can not damage products in a hard touch manner in the inserting process, and meanwhile, the relative position degree of the test module and the display screen test port can be greatly improved.

Further, the structure of the probe test module 37 is the same as that of the probe test module 36, and specifically includes a probe test fixing block 371, a probe test floating block 372, a probe test probe needle 373 and a probe test guide shaft 374, one end of the probe test guide shaft 374 passes through the fixing plate 34, and the end portion of the probe test guide shaft passes through the probe test floating block 372 in a sliding manner and is fixedly connected with the probe test fixing block 371, the probe test probe needle 373 is mounted on the probe test fixing block 371, a first mounting groove and a second mounting groove are respectively arranged on opposite sides of the probe test fixing block 371 and the probe test floating block 372, a probe test spring 375 is sleeved on the probe test guide shaft 374, and two ends of the probe test spring 375 are respectively abutted to the first mounting groove and the second mounting groove.

Example 4

Preferably, on the basis of embodiments 2-3, the linear driving mechanism is a cylinder 32.

The beneficial effects of this embodiment are: the operation is stable, and the working noise is low.

Further, the cylinder 32 is a triaxial cylinder, and the model is TCL16X125S, which can greatly improve the guiding precision, so that the high-frequency test module 36 and the probe test module 37 can keep stable test.

Alternatively, the linear driving member may be a linear motor or an oil cylinder.

Further, a solenoid valve 39 is provided on the detection platform 11 for controlling the activation or deactivation of the air cylinder 32.

Example 5

Preferably, on the basis of embodiments 2-4, the fixing plate 34 is connected to the slider 33 by a connecting plate 38.

The beneficial effects of this embodiment are: the fixing effect is good, and the assembly and the disassembly are convenient.

Further, the connection plate 38 is provided with a plurality of bolt holes for mounting.

Example 6

Preferably, on the basis of embodiments 2-5, a limiting mechanism 311 for limiting the position of the slider 33 is provided on the other side of the upper end of the mounting plate 31.

The beneficial effects of this embodiment are: the stroke of the movement of the cylinder 32 is controlled by installing a limiting mechanism 311 to prevent the overpressure.

Example 7

Preferably, on the basis of embodiment 6, the limiting mechanism 311 is a limiting pin.

The beneficial effects of this embodiment are: simple structure, easy to assemble, it is spacing effectual.

Alternatively to the above embodiment, the limiting mechanism 311 may be a baffle plate vertically fixed on the mounting plate 31.

Example 8

Preferably, on the basis of embodiments 1 to 7, the supporting mechanism 2 includes two supporting frames 21 that are spaced apart and arranged in parallel, two supporting frames 21 are fixedly connected with the detecting platform 11, positioning slots 211 for positioning a display screen are respectively formed in the supporting frames, two supporting frames 21 are connected through a cross beam 22, the cross beam 22 is fixedly connected with the intelligent floating detecting mechanism 3, and two ends of the cross beam 22 are respectively provided with positioning mechanisms 221 for secondarily positioning the display screen.

The beneficial effects of this embodiment are: the display screen is ensured to be stable in the detection process through double positioning of the positioning groove 211 and the positioning structure 221.

Example 9

Preferably, on the basis of embodiment 8, the positioning mechanism 221 includes a stopper, where the stopper is fixed on one end of the beam 22, and a positioning pin is installed on the stopper.

The beneficial effects of this embodiment are: the display screen is convenient to fix through the locating pin on the limiting block.

Further, as shown in fig. 17 and 18, a stopper is provided at the left end of the cross member 22, a left stopper pin 2211 is provided on the stopper, and another stopper is provided at the right end of the cross member 22, a right stopper pin 2212 is provided on the stopper.

Further, the ends of the left stop pin 2211 and the right stop pin 2212 can be sleeved with rubber sleeves, and when the rubber sleeves are abutted to the side wall of the display screen, the display screen cannot be damaged.

Example 10

Preferably, on the basis of embodiments 8-9, the cross beam 22 is rotatably mounted between two of the support frames 21.

The beneficial effects of this embodiment are: the angle of the supporting mechanism 2 can be properly adjusted, so that the subsequent display screen installation and detection work is facilitated.

Specifically, two ends of the cross beam 22 of the supporting mechanism 2 are rotatably connected to the corresponding supporting frame 21 through pin shafts, and after the position of the cross beam 22 is adjusted, the cross beam 22 is locked through pins.

The basic operation flow of the device is as follows:

① Putting the product into the supporting mechanism 2- & gt ② button start- & gt ③ solenoid valve 39 power-on- & gt ④ plug-in testing mechanism cylinder start action stretch out, drive the slider fixed on the linear slide rail to advance through the floating joint- & gt ⑤ receive the influence of cylinder thrust, the probe/high frequency testing module on the module fixed plate start stretching into the product testing port- & gt ⑥ product power-on start operation- & gt ⑦ operation is finished and after the solenoid valve power-off air release- & gt ⑧ cylinder is retracted, the probe/high frequency testing module withdraws from the product port, and the plug-in testing mechanism resumes the original position.

It should be noted that, as places where the high-frequency test module 36 and the probe test module 37 finally contact with the product to carry out power-on transmission signals, there are several non-negligible problems in the industry:

1) Is the port accurately aligned?

2) Is the test process able to continue to stabilize and keep the signal transmission normal?

3) Is the product damaged during this plug?

4) How does the life of the test probe/high frequency probe extend?

By parsing the basic action flow diagram of the device, the key nodes to avoid the above problem are how to handle the three actions ①, ④, and ⑤. The pain point can be solved only by ensuring the relative position precision and the plugging force of the test module and the product port in the operation process.

The probe alignment problem is solved by the structure of the following points:

1) The tolerance range based on the automobile display screen is relatively large, so that when the automobile display screen is placed, the product is limited by the strengthening mechanism in a multi-precision positioning mode (fig. 16). In the aspect of a product cavity on the supporting mechanism 2, a product profiling mode (a gap of 0.1mm is reserved on a single side) is adopted for design, and a locating pin (a gap of 0.1mm on a single side) is additionally arranged for carrying out secondary locating on a hole site on a metal shell of the product. Therefore, whether the appearance of the product is qualified or not can be detected, and the relative position of the display screen during detection can be controlled within a tolerance range;

2) In terms of a plug-in testing mechanism, the conventional structure adopts a dual-shaft/tri-shaft air cylinder 32 to give precise guidance to the testing module, but in practical application, the dual-shaft/tri-shaft air cylinder 32 tends to have the phenomena of reduced precision and even serious deviation due to the use time. In combination with previous experience, the utility model discloses a mode of adding double linear slide rail 35 on plug testing mechanism guarantees the stability and the accurate direction formula of cylinder 32 in the promotion in-process. And at the movable front end of the sliding block 33, the movement stroke of the air cylinder 32 is controlled by installing a limit pin to prevent the overpressure. In addition, the air cylinder 32 and the sliding block 33 are connected by the floating joint 310, so that the phenomenon of holding down caused by the inclination of the installation angle of the air cylinder 32 is avoided, and the assembly personnel are greatly facilitated in the installation and debugging processes;

3) As an important component on the plug-in testing mechanism, the high-frequency testing module 36 and the probe testing module 37 are also places on the whole device which are in direct contact with the testing port, so that the high-frequency testing module 36 and the probe testing module 37 can be accurately inserted into the testing port in the testing process, can not damage products when being inserted into the testing port, and can be ensured to be in continuous and stable contact with the testing port in the testing process. The invention combines the past experiences, and adopts the following two modes in structural design:

① The high-frequency probe head 363 and the probe test probe head 373 which are contacted with the testing port of the display screen adopt a cavity profiling (unilateral 0.05 mm) +foolproof design, and the profiling head adopts a mode of non-antistatic racing steel material+head die drawing chamfering, so that the profiling head is in a conical insertion state, and the damage to products can be reduced to a great extent;

② A floatable precise guiding function is carried out between the fixed block and the floating block by adding a guide shaft and a round wire spiral spring, so that the relative position of the test module and a display screen test port can be greatly improved while the test module can not damage products in a hard touch manner in the inserting process.

In the practical production application, the problems of detection of the automobile display screen existing in the past are effectively solved, and the cost reduction and synergy of production enterprises are obviously promoted.

The utility model has the beneficial effects that:

The automobile display screen detection device and the mode have the advantages that the accuracy is higher, the efficiency is higher, the cost is saved, the testing efficiency of the display screen is greatly improved, the production cost is obviously reduced, the safety is higher, the applicability is wide, and the automobile display screen detection device and the mode can be applied to single-screen, double-screen and triple-screen automobile display screens.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The utility model provides a detection device of display screen which characterized in that: the intelligent floating detector comprises a detector (1), wherein the upper surface of the detector (1) is a detection platform (11), a supporting mechanism (2) is arranged on the detection platform (11), and an intelligent floating detection mechanism (3) is arranged on the supporting mechanism (2).

2. A display screen detection apparatus according to claim 1, wherein: the intelligent floating detection mechanism (3) comprises a mounting plate (31) and a sliding block (33), the mounting plate (31) is fixed on the supporting mechanism (2), a linear driving mechanism is fixed at the upper end of the mounting plate (31), the output end of the linear driving mechanism is horizontally arranged and connected with the sliding block (33) through a floating joint (310), the sliding block (33) is slidably connected with the upper end of the mounting plate (31), and the sliding block (33) is fixedly connected with a high-frequency test module (36) and a probe test module (37) through a fixing plate (34).

3. A display screen detection apparatus according to claim 2, wherein: the high-frequency test module (36) comprises a high-frequency fixing block (361), a high-frequency floating block (362) and a high-frequency probe head (363) and a high-frequency guide shaft (364), the high-frequency fixing block (361) is fixedly connected with the fixing plate (34), one end of the high-frequency guide shaft (364) slides through the high-frequency floating block (362) and is fixedly connected with the high-frequency fixing block (361), the high-frequency probe head (363) is mounted on the high-frequency fixing block (361), a first mounting groove and a second mounting groove are respectively formed in one side, opposite to the high-frequency floating block (362), of the high-frequency probe head, a high-frequency spring (365) is sleeved on the high-frequency guide shaft (364), and two ends of the high-frequency spring (365) are respectively abutted to the first mounting groove and the second mounting groove.

4. A display screen detection apparatus according to claim 3, wherein: the linear driving mechanism is an air cylinder (32).

5. A display screen detection apparatus according to claim 3, wherein: the fixing plate (34) is connected with the sliding block (33) through a connecting plate (38).

6. A display screen detection apparatus according to claim 3, wherein: and a limiting mechanism (311) for limiting the position of the sliding block (33) is arranged on the other side of the upper end of the mounting plate (31).

7. The display screen detection apparatus according to claim 6, wherein: the limiting mechanism (311) is a limiting pin.

8. A display screen detection apparatus according to claim 1, wherein: the supporting mechanism (2) comprises two supporting frames (21) which are arranged at intervals and in parallel, the two supporting frames (21) are fixedly connected with the detection platform (11), positioning grooves (211) for positioning the display screen are formed in the supporting frames, the two supporting frames (21) are connected through a cross beam (22), the cross beam (22) is fixedly connected with the intelligent floating detection mechanism (3), and positioning mechanisms (221) for secondarily positioning the display screen are respectively arranged at two ends of the cross beam (22).

9. The display screen detection device according to claim 8, wherein: the positioning mechanism (221) comprises a limiting block, the limiting block is fixed on one end of the cross beam (22), and a positioning pin is arranged on the limiting block.

10. The display screen detection device according to claim 8, wherein: the cross beam (22) is rotatably arranged between the two supporting frames (21).