CN221174914U - Test fixture and test device with same - Google Patents

Abstract

The utility model provides a test fixture and a test device with the same, wherein the test fixture is used for supporting a lamp panel to be tested, and comprises: the base is used for placing the lamp panel to be tested; the positioning part is arranged on the base and can limit the lamp panel to be tested; the top plate is arranged above the base in a turnover manner and is provided with a picking and placing position and a vertically arranged testing position which are opposite to the base; the grabbing part is arranged on the top plate and is provided with a grabbing state for grabbing the lamp panel to be tested and a releasing state for releasing the lamp panel to be tested; and the control part is arranged on the base and can control the grabbing part to switch between a grabbing state and a releasing state. The technical scheme of the utility model can effectively solve the problem that the time and the labor are wasted when workers accurately place the LED lamp panel in the related technology.

Description

Test fixture and test device with same

Technical Field

The utility model relates to the technical field of LED testing, in particular to a testing jig and a testing device with the same.

Background

With the continuous development of the LED display technology, LED display screens of various types can be applied to various indoor and outdoor scenes. The LED display screen mainly comprises an LED lamp panel on an LED display module, wherein LED lamp beads are arranged on the LED lamp panel, and the brightness of the LED lamp beads can directly influence the display effect of the LED display screen. When the LED lamp panel is processed, staff needs to correct the brightness of the LED lamp beads on the LED lamp panel, so that the luminous brightness of the LED lamp beads on the LED lamp panel is in a uniform state.

In the related art, a worker usually sets a placement device on a wall, a test camera is corresponding to the placement device and is arranged at intervals, the worker needs to hang an LED lamp panel on the placement device, and the magnetic attraction piece at the rear side of the LED lamp panel and the magnetic attraction matching piece on the placement device are attracted magnetically to complete the positioning of the LED lamp panel; because the staff can't see the magnetism of LED lamp plate rear side and inhale the piece when placing the LED lamp plate, so the staff can consume a large amount of time to inhale the piece with magnetism and inhale the cooperation piece and aim at, leads to staff's efficiency greatly reduced. Therefore, the problem that the accurate LED lamp panel of placing of staff wastes time and energy exists in the field.

Disclosure of utility model

The utility model mainly aims to provide a testing jig and a testing device with the same, so as to solve the problem that workers in the related art accurately place LED lamp panels and waste time and labor.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a test fixture for supporting a lamp panel to be tested, the test fixture comprising: the base is used for placing the lamp panel to be tested; the positioning part is arranged on the base and can limit the lamp panel to be tested; the top plate is arranged above the base in a turnover manner and is provided with a picking and placing position and a vertically arranged testing position which are opposite to the base; the grabbing part is arranged on the top plate and is provided with a grabbing state for grabbing the lamp panel to be tested and a releasing state for releasing the lamp panel to be tested; and the control part is arranged on the base and can control the grabbing part to switch between a grabbing state and a releasing state.

Further, the positioning part is provided with a placing cavity, the lamp panel to be tested is placed in the placing cavity, and the cavity wall of the placing cavity is in limit fit with the side wall of the lamp panel to be tested.

Further, the test fixture further comprises an air pump, the grabbing part comprises a vacuum suction nozzle, and the vacuum suction nozzle is communicated with the air pump through a guide pipe.

Further, the grabbing part comprises a first support column and a first buffer piece, the first support column movably penetrates through the top plate, a vacuum suction nozzle is arranged at one end, facing the base, of the first support column, the first buffer piece is arranged on the first support column, and two ends of the first buffer piece respectively abut against the top plate and the vacuum suction nozzle.

Further, an observation window penetrating through the top plate is arranged on the top plate, and the vacuum suction nozzle can be exposed out of the observation window.

Further, the top plate is hinged with the base, and the testing jig further comprises a driving part which is arranged on the base and is in driving connection with the top plate to drive the top plate to move between the taking and placing position and the testing position.

Further, a first limiting structure extending upwards is arranged on the base, and when the top plate is located at the picking and placing position, the first limiting structure can be abutted against the top plate to limit the top plate to continuously overturn towards the direction of the base; and/or the rear end of the base is provided with a second limiting structure, and when the top plate is positioned at the testing position, the second limiting structure can be propped against the top plate to limit the top plate to continuously overturn in a direction far away from the base.

Further, the control part comprises a first button, a second button and a third button which are arranged on the base, the first button and the second button are electrically connected with the driving part, the second button and the third button are electrically connected with the grabbing part, and when the first button and the second button are triggered, the driving part drives the top plate to turn over; when both the second button and the third button are triggered, the grasping portion switches between a grasping state and a releasing state.

Further, the base includes drain pan and apron, and the drain pan has the chamber of holding, and the top of drain pan has the opening, holds chamber and opening intercommunication, and the apron lid is established in the opening part, has between the outer edge of open-ended interior border and apron and dodges the clearance, and the air pump setting is in holding the chamber, and the pipe passes through dodging the clearance and wears in the base and be connected with the vacuum nozzle.

Further, the test fixture further comprises a telescopic propping piece arranged in the accommodating cavity, the telescopic propping piece is supported below the cover plate, and when the top plate is located at the taking and placing position, the telescopic propping piece upwards props against the cover plate to drive the cover plate to move towards the top plate.

Further, the test fixture further comprises a protective pad structure arranged on the top surface of the positioning part; and/or, the test fixture further comprises an anti-slip pad structure detachably arranged on the bottom surface of the base.

According to another aspect of the present utility model, there is provided a testing apparatus, including a testing camera and a testing jig, where the testing camera and the testing jig are correspondingly arranged, and the testing jig is the testing jig.

By applying the technical scheme of the utility model, the base is used for placing the lamp panel to be tested; the positioning part is used for limiting the lamp panel to be tested so as to facilitate the grabbing of the follow-up grabbing part; the top plate is reversible relative to the base and has a picking and placing position and a testing position; the grabbing part is used for grabbing or releasing the lamp panel to be tested; the control section is capable of controlling the grasping section to switch between a grasping state and a releasing state. When the lamp panel to be tested is used, a worker firstly places the lamp panel to be tested on the base and enables the lamp panel to be tested to be matched with the positioning part in a positioning way, so that the front face of the lamp panel to be tested faces the base; then, the worker makes the top plate located at the picking and placing position, and the grabbing part is close to the back surface of the lamp panel to be tested; then, a worker operates the control part to enable the grabbing part to be in a grabbing state, and at the moment, the grabbing part firmly grabs the lamp panel to be tested; then, the worker turns the top plate to the testing position and starts to test the lamp panel to be tested; when the test is finished, the worker enables the top plate to turn back to the grabbing position and enables the grabbing part to be in a releasing state, and at the moment, the lamp panel to be tested falls back to the base, so that the lamp panel to be tested can be taken away. Because the test fixture is generally placed on the horizontal placing platform when in use, a worker can easily place the lamp panel to be tested on the base and position the lamp panel, the follow-up worker only needs to operate the control part to finish the taking and placing of the lamp panel to be tested, and the worker only needs to turn over the top plate to enable the top plate to be switched between the testing position and the taking and placing position, so that the operation difficulty of the worker is greatly reduced, and the working efficiency of the worker is improved. Therefore, the technical scheme of the utility model can effectively solve the problem that the time and the labor are wasted when workers accurately place the LED lamp panel in the related technology.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic perspective view of a test fixture according to an embodiment of the utility model;

FIG. 2 is a schematic front view of the test fixture of FIG. 1;

FIG. 3 shows a schematic cross-sectional view of the test fixture of FIG. 1;

FIG. 4 is a schematic front view showing a part of the structure of the gripping part of the test fixture of FIG. 1;

FIG. 5 shows a schematic cross-sectional view of a portion of the base and cleat structure of the test fixture of FIG. 1;

FIG. 6 is a schematic bottom view of the cleat structure of the test fixture of FIG. 1;

Wherein the above figures include the following reference numerals:

10. A base; 11. a first limit structure; 12. a bottom case; 13. a cover plate; 14. avoidance gap; 151. a magnet;

20. a positioning part; 21. a placement cavity;

30. A top plate; 31. an observation window;

40. A gripping part; 41. a vacuum suction nozzle; 43. a first support column; 44. a first buffer member;

50. A control unit; 51. a first button; 52. a second button; 53. a third button;

61. an air pump; 62. an anti-slip pad structure; 622. a magnetic attraction part; 623. anti-skid lines;

70. a driving section; 71. and a telescopic cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.

As shown in fig. 1 to 4, the present application provides a test fixture for supporting a lamp panel to be tested, and an embodiment of the test fixture of the present application includes: base 10, positioning portion 20, top plate 30, grasping portion 40, and control portion 50; the base 10 is used for placing a lamp panel to be tested; the positioning part 20 is arranged on the base 10 and can limit the lamp panel to be tested; the top plate 30 is arranged above the base 10 in a reversible manner, and the top plate 30 is provided with a picking and placing position and a vertically arranged testing position which are opposite to the base 10; the grabbing part 40 is arranged on the top plate 30, and the grabbing part 40 has a grabbing state for grabbing the lamp panel to be tested and a releasing state for releasing the lamp panel to be tested; a control portion 50 is provided on the base 10, and the control portion 50 can control the grasping portion 40 to switch between the grasping state and the releasing state.

By applying the technical scheme of the embodiment, the base 10 is used for placing a lamp panel to be tested; the positioning part 20 is used for limiting the lamp panel to be tested so as to facilitate the subsequent grabbing part 40 to grab; the top plate 30 is reversible relative to the base 10 and has a pick-and-place position and a testing position; the grabbing part is used for grabbing or releasing the lamp panel to be tested; the control section 50 can control the grasping section 40 to switch between the grasping state and the releasing state. When in use, a worker firstly places the lamp panel to be tested on the base 10 and enables the lamp panel to be tested to be matched with the positioning part 20 in a positioning way, so that the front surface of the lamp panel to be tested faces the base 10; next, the worker positions the top plate 30 at the picking position, and the back surface of the gripping portion 40 is close to the picking position; then, the worker operates the control part 50 so that the grabbing part 40 is in a grabbing state, and at this time, the grabbing part 40 firmly grabs the lamp panel to be tested; then, the worker turns the top plate 30 to the testing position and starts to test the lamp panel to be tested; when the test is finished, the worker turns the top plate 30 back to the grabbing position and makes the grabbing portion 40 in a releasing state, and at this time, the lamp panel to be tested falls back onto the base 10, and the lamp panel to be tested can be taken away. Because the test fixture is generally placed on the horizontal placing table when in use, a worker can easily place the lamp panel to be tested on the base 10 and position the lamp panel, the follow-up worker can finish the taking and placing of the lamp panel to be tested only by operating the control part, and the worker can switch the top plate between the test position and the taking and placing position only by turning the top plate 30, so that the operation difficulty of the worker is greatly reduced, and the working efficiency of the worker is improved. Therefore, the technical scheme of the embodiment can effectively solve the problem that the time and the labor are wasted when the worker accurately places the LED lamp panel in the related technology.

It should be noted that, the "front" refers to a surface of the board to be tested having the LED lamp beads, and the "back" refers to a surface of the board to be tested having the IC chip attached thereto.

As shown in fig. 1, the positioning portion 20 has a placement cavity 21, the lamp panel to be tested is placed in the placement cavity 21, and the cavity wall of the placement cavity 21 is in limit fit with the side wall of the lamp panel to be tested. The positioning part 20 has a simple structure and is easy to process, and a worker can easily complete positioning operation on the lamp panel to be tested.

As shown in fig. 1 to 4, the test fixture further includes an air pump 61, and the gripping portion 40 includes a vacuum nozzle 41, and the vacuum nozzle 41 is in communication with the air pump 61 through a conduit. When the control part 50 controls the air pump 61 to suck air, the mouth of the vacuum suction nozzle 41 generates suction force, and the lamp panel to be tested can be firmly sucked on the vacuum suction nozzle 41, so that the lamp panel to be tested is grabbed; when the control part 50 controls the air pump 61 to stop sucking, the mouth of the vacuum nozzle 41 loses suction, and the lamp panel to be tested is separated from the vacuum nozzle 41 due to self gravity, thereby completing the release of the lamp panel to be tested. The vacuum nozzle 41 has the advantage of being stable to grasp and easy to operate.

As shown in fig. 4, the gripping portion 40 includes a first support column 43 and a first buffer member 44, the first support column 43 is movably disposed through the top plate 30, one end of the first support column 43 facing the base 10 (i.e., a second end of the first support column 43) is provided with the vacuum nozzle 41, the first buffer member 44 is disposed on the first support column 43, and two ends of the first buffer member 44 respectively abut against the top plate 30 and the vacuum nozzle 41. In this embodiment, the first support column 43 is movably disposed on the top plate 30 in a penetrating manner, and a first end of the first support column 43 is provided with a limiting structure (e.g. a nut structure) above the top plate 30 and capable of being in abutting engagement with the top plate 30, so that the first support column 43 is not separated from the top plate 30 when moving towards the base 10; the first buffer member 44 is a compression spring sleeved on the periphery of the first support column 43, one end of the compression spring is abutted against the top plate 30, and the other end of the compression spring is abutted against the vacuum suction nozzle 41; when the vacuum nozzle 41 contacts with the lamp panel to be tested, the first support column 43 can retract away from the base 10, so that the vacuum nozzle 41 has smaller pressure on the lamp panel to be tested, and the possibility that the grabbing part 40 damages the lamp panel to be tested is reduced.

Further, as shown in fig. 1 and 2, in the present embodiment, the gripping portion 40 includes a plurality of vacuum nozzles 41, and a plurality of mounting holes are provided on the top plate for mounting the first support columns 43. Different lamp panels to be tested are different from the circuit wiring area and the electric element area on one side far away from the LED lamp beads, and the vacuum suction nozzles 41 are matched with the light surface on the back surface of the lamp panel to be tested, so that staff can set the number of the vacuum suction nozzles 41 and the positions of the vacuum suction nozzles 41 according to the requirements, and the universality of the test fixture is improved.

As shown in fig. 1 and 2, the top plate 30 is provided with an observation window 31 penetrating the top plate 30, and the observation window 31 can expose the vacuum nozzle 41. When in use, a worker can see through the observation window 31 whether the vacuum suction nozzle 41 is accurately matched with the light surface, and whether the vacuum suction nozzle 41 is in error contact with the circuit wiring area or the electric element area, so that the situation that the grabbing part 40 grabs the lamp panel to be tested unstably is reduced.

As shown in fig. 1 and 2, the top plate 30 is hinged to the base 10, and the test fixture further includes a driving portion 70, where the driving portion 70 is disposed on the base 10 and is in driving connection with the top plate 30 to drive the top plate 30 to move between the picking and placing position and the testing position. In this embodiment, the driving part 70 includes a telescopic cylinder 71, one end of the telescopic cylinder 71 is hinged to the top plate 30, the other end of the telescopic cylinder 71 is hinged to the base 10, the telescopic cylinder 71 is communicated with a pneumatic source structure, the pneumatic source structure is arranged on the base 10, and the pneumatic source structure drives the telescopic cylinder 71 to perform telescopic movement, so that the top plate 30 is driven to move between the picking and placing position and the testing position.

It should be noted that "rear" as used herein to describe the orientation refers to a side near an end where the hinge point of the top plate 30 and the base 10 is located as shown in fig. 1; "front" refers to the side of the end of the hinge point of the top plate 30 and the base 10 that is located away from the end shown in fig. 1; as shown in fig. 1, "upper" refers to an upper side when the test jig is placed on a horizontal plane and the top plate 30 is located at the pick-and-place position, wherein the upper side of the top plate 30 refers to a side away from the vacuum nozzle 41; as shown in fig. 1, "lower" refers to a lower side when the test jig is placed on a horizontal plane and the top plate 30 is located at the pick-and-place position, wherein the lower side of the top plate 30 refers to a side close to the vacuum nozzle 41.

As shown in fig. 1 and 2, the base 10 is provided with a first limiting structure 11 extending upwards, and when the top plate 30 is located at the picking and placing position, the first limiting structure 11 can abut against the top plate 30 to limit the top plate 30 to continuously turn towards the direction of the base 10. In this embodiment, the side and the front of the base 10 are respectively provided with a first limiting structure 11, when the top plate 30 is turned down, the first limiting structure 11 can be abutted against the top plate 30, so that the top plate 30 is not turned down any more, and the possibility of damage to the lamp panel to be tested caused by the vacuum suction nozzle 41 is avoided; at this time, the top plate 30 is in the pick-and-place position.

In addition, in the present embodiment, the rear end of the base 10 is provided with a second limiting structure, and when the top plate 30 is located at the testing position, the second limiting structure can abut against the top plate 30 to limit the top plate 30 to continue to turn in a direction away from the base 10. The second limiting structure prevents the top plate 30 from continuing to turn over in a direction away from the base 10 after reaching the testing position, thereby preventing the top plate 30 from deviating from the testing position and affecting the calibration test.

As shown in fig. 1 and 2, the control part 50 includes a first button 51, a second button 52 and a third button 53 provided on the base 10, the first button 51 and the second button 52 are electrically connected to the driving part 70, and the second button 52 and the third button 53 are electrically connected to the grasping part 40, wherein when the first button 51 and the second button 52 are triggered, the driving part 70 drives the top plate 30 to turn over; when both the second button 52 and the third button 53 are activated, the grasping portion 40 switches between the grasping state and the releasing state. In the present embodiment, the first button 51 is a driving switch, the second button 52 is an anti-false switch, and the third button 53 is a pick-and-place switch; the first button 51 can adjust the extending or retracting state of the telescopic cylinder 71, so as to avoid that when the first button 51 is triggered by mistake by a worker, the telescopic cylinder 71 directly begins to extend or retract, which may possibly cause injury to the worker, so that when the first button 51 and the second button 52 are triggered, the telescopic cylinder 71 begins to extend or retract; the third button 53 can adjust the working state of the air pump 61, so as to avoid that when the third button 53 is triggered by mistake, the air pump 61 directly starts to inhale or stops inhaling, which may damage the lamp panel to be tested, so that when the third button 53 and the second button 52 are triggered, the air pump 61 starts to inhale or stops inhaling. The second button 52 can prevent the test fixture from directly starting working due to accidental touching of the worker, thereby reducing the possibility of injury to the worker and damage to the lamp panel to be tested.

As shown in fig. 1 and 2, the base 10 includes a bottom shell 12 and a cover plate 13, the bottom shell 12 has a receiving cavity, the top of the bottom shell 12 has an opening, the receiving cavity is communicated with the opening, the cover plate 13 is covered at the opening, an avoidance gap 14 is formed between the inner edge of the opening and the outer edge of the cover plate 13, an air pump 61 is arranged in the receiving cavity, and a conduit penetrates through the avoidance gap 14 out of the base 10 and is connected with a vacuum suction nozzle 41. Cover plate 13 detachably sets up in the opening part for the staff need directly take off cover plate 13 when maintaining the part in holding the chamber can, dodge clearance 14 on the one hand make the pipe can wear out from holding the chamber and link to each other with air pump 61, on the other hand make things convenient for the staff to the taking of waiting to test the lamp plate on cover plate 13.

In addition, in this embodiment, the two sides of the cover plate 13 are further provided with a holding recess, which is convenient for the staff to hold the lamp panel to be tested.

In this embodiment, the test fixture further includes a telescopic propping member disposed in the accommodating cavity, the telescopic propping member is supported below the cover plate 13, and when the top plate 30 is located at the picking and placing position, the shown telescopic propping member props up against the cover plate 13 to drive the cover plate 13 to move towards the top plate 30. When the vacuum suction nozzle is used, when the top plate 30 is positioned at the picking and placing position, the telescopic propping piece moves slightly upwards to drive the cover plate 13 to move slightly upwards, so that the positions of the top plate 30 and the cover plate 13 are closer, and the situation that the vacuum suction nozzle 41 cannot absorb the lamp panel to be tested due to the fact that the vacuum suction nozzle 41 is far away from the lamp panel to be tested is avoided.

In this embodiment, the test fixture further includes a protection pad structure disposed on the top surface of the positioning portion 20. The protection pad structure is a velvet fabric surface so as to avoid damage to the LED lamp beads of the lamp panel to be tested.

As shown in fig. 5, the test fixture further includes a non-slip pad structure 62 detachably disposed on the bottom surface of the base 10. In this embodiment, the lower surface of the base 10 is provided with a mounting groove, the upper surface of the anti-slip pad structure 62 is provided with mounting posts corresponding to the mounting grooves one by one and in plug-in fit with the mounting grooves, the bottom wall of the mounting groove is provided with a magnet 151, the top of the mounting posts is provided with a magnetic attraction part 622 made of a magnetic material, and the magnet 151 and the magnetic attraction part 622 can be in magnetic attraction fit. Can dismantle and set up slipmat structure 62, be convenient for the staff need pull down slipmat structure 62 when maintaining slipmat structure 62, magnet 151 and magnetism inhale portion 622 can make slipmat structure 62 can firm the connection in the bottom surface of base 10.

As shown in fig. 6, the lower surface of the anti-slip pad structure 62 has a plurality of anti-slip patterns 623 spaced apart. The anti-skid pattern 623 is L-shaped, and the anti-skid pattern 623 further improves the anti-skid effect of the anti-skid pad structure 62.

Further, in the present embodiment, the side portion of the base 10 is provided with a handle structure. The handle structure is convenient for the staff to carry the test fixture.

The application also provides a testing device, which comprises: the test camera and the test jig are correspondingly arranged, wherein the test jig is the test jig. The testing jig can effectively solve the problem that the time and the labor are wasted when workers in the related technology accurately place the LED lamp panel, and the testing device with the testing jig also has the advantages.

Specifically, in this embodiment, the test camera is capable of photographing the lamp panel to be tested to obtain a light-emitting image of the lamp panel to be tested, and after the light-emitting image is analyzed and processed by a worker, the worker can find an abnormal light-emitting point (for example, the brightness is too high or too low), and the control program of the lamp panel to be tested is adjusted to make the lamp panel to be tested emit light uniformly.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (12)

1. A test fixture for supporting a lamp panel to be tested, the test fixture comprising:

A base (10) for placing the lamp panel to be tested;

The positioning part (20) is arranged on the base (10) and can limit the lamp panel to be tested;

The top plate (30) is arranged above the base (10) in a reversible manner, and the top plate (30) is provided with a picking and placing position and a vertically arranged testing position which are arranged opposite to the base (10);

a gripping portion (40) provided on the top plate (30), the gripping portion (40) having a gripping state of gripping the lamp panel to be tested and a releasing state of releasing the lamp panel to be tested;

And a control unit (50) provided on the base (10), wherein the control unit (50) can control the gripping unit (40) to switch between the gripping state and the release state.

2. The test fixture according to claim 1, wherein the positioning part (20) is provided with a placement cavity (21), the lamp panel to be tested is placed in the placement cavity (21), and the cavity wall of the placement cavity (21) is in limit fit with the side wall of the lamp panel to be tested.

3. The test fixture according to claim 1, further comprising an air pump (61), the gripping portion (40) comprising a vacuum nozzle (41), the vacuum nozzle (41) being in communication with the air pump (61) via a conduit.

4. A test fixture according to claim 3, characterized in that the gripping portion (40) comprises a first support column (43) and a first buffer member (44), the first support column (43) is movably arranged on the top plate (30) in a penetrating manner, one end of the first support column (43) facing the base (10) is provided with the vacuum suction nozzle (41), the first buffer member (44) is arranged on the first support column (43), and two ends of the first buffer member (44) respectively abut against the top plate (30) and the vacuum suction nozzle (41).

5. A test fixture according to claim 3, characterized in that the top plate (30) is provided with an observation window (31) penetrating the top plate (30), the observation window (31) being capable of exposing the vacuum nozzle (41).

6. The test fixture according to any one of claims 1 to 5, characterized in that the top plate (30) is hingedly connected to the base (10), the test fixture further comprising a drive (70), the drive (70) being arranged on the base (10) and being in driving connection with the top plate (30) for driving the top plate (30) between the pick-and-place position and the test position.

7. The test fixture according to claim 6, wherein the control part (50) comprises a first button (51), a second button (52) and a third button (53) provided on the base (10), the first button (51) and the second button (52) are each electrically connected with the driving part (70), the second button (52) and the third button (53) are each electrically connected with the grasping part (40), wherein,

When both the first button (51) and the second button (52) are triggered, the driving part (70) drives the top plate (30) to turn over;

When both the second button (52) and the third button (53) are triggered, the grip (40) switches between the grip state and the release state.

8. The test fixture according to any one of claims 1 to 5,

The base (10) is provided with a first limiting structure (11) extending upwards, and when the top plate (30) is positioned at the picking and placing position, the first limiting structure (11) can be propped against the top plate (30) to limit the top plate (30) to continuously overturn towards the direction of the base (10); and/or the number of the groups of groups,

The rear end of the base (10) is provided with a second limiting structure, and when the top plate (30) is located at the testing position, the second limiting structure can be abutted against the top plate (30) to limit the top plate (30) to continuously overturn in a direction far away from the base (10).

9. A test fixture according to claim 3, characterized in that the base (10) comprises a bottom shell (12) and a cover plate (13), the bottom shell (12) is provided with a containing cavity, the top of the bottom shell (12) is provided with an opening, the containing cavity is communicated with the opening, the cover plate (13) is covered at the opening, an avoidance gap (14) is arranged between the inner edge of the opening and the outer edge of the cover plate (13), the air pump (61) is arranged in the containing cavity, and the guide pipe penetrates out of the base (10) through the avoidance gap (14) and is connected with the vacuum suction nozzle (41).

10. The test fixture according to claim 9, further comprising a telescopic abutment disposed in the receiving cavity, the telescopic abutment being supported below the cover plate (13), the telescopic abutment abutting the cover plate (13) upwards to drive the cover plate (13) to move towards the cover plate (30) when the cover plate (30) is in the pick-and-place position.

11. The test fixture according to any one of claims 1 to 5,

The test fixture further comprises a protective pad structure arranged on the top surface of the positioning part (20); and/or the number of the groups of groups,

The test fixture further includes a non-slip mat structure (62) detachably disposed on a bottom surface of the base (10).

12. A test device comprising a test camera and a test jig, wherein the test camera is arranged corresponding to the test jig, and the test jig is any one of claims 1 to 11.