CN220913187U - Clamp for lamp bead test - Google Patents

Abstract

The utility model relates to a fixture for lamp bead test, which comprises: the clamp comprises a clamp body and a bottom plate, wherein the clamp body comprises a base, a first clamping assembly and a second clamping assembly, a second through groove is formed in the base, the first clamping assembly comprises two first clamps, the two first clamps are movably connected to the base and are respectively located at two sides of the second through groove along a first direction, the second clamping assembly comprises two second clamps, the two second clamps are movably connected to the base and are respectively located at two sides of the second through groove along a second direction; the bottom plate sets up in the base bottom, is provided with the PCB pad on the bottom plate, and the second through groove is inside worn to establish by the PCB pad. According to the utility model, the first clamping assembly and the second clamping assembly are adjusted to fix the lamp beads, so that pins at the bottom of the lamp beads are in direct contact with PCB bonding pads on the bottom plate, the lamp beads do not need to be welded, and the lamp beads can be reused after the test is finished; the first clamping component is matched with the second clamping component to clamp and fix the lamp beads with different sizes, so that the clamp has compatibility.

Description

Clamp for lamp bead test

Technical Field

The application relates to the technical field of LED (light emitting diode) tests, in particular to a clamp for a lamp bead test.

Background

The LED lamp aging test is a key test link for evaluating the performance and service life of an LED lamp. By simulating real use conditions, the aging of the LED lamp is accelerated, the service life of the LED lamp can be predicted, potential problems can be found early, and products with unqualified quality can be screened out. The existing single lamp aging test requires welding the single lamp on a test board, so that the tested single lamp cannot be reused after aging test for a certain time; in addition, the single lamp of different types needs the ageing anchor clamps of single lamp of different types, and current test fixture does not possess the compatibility, can't the common anchor clamps of polytypic product, and the wasting of resources is serious, can not effective control cost.

Disclosure of utility model

The application provides a clamp for a lamp bead test, which can solve the problem that a single lamp needs to be welded with a test board in the related art, and the test clamp does not have compatibility.

The application provides a fixture for lamp bead test, which comprises: the clamp comprises a clamp body and a bottom plate, wherein the clamp body comprises a base, a first clamping assembly and a second clamping assembly, a second through groove is formed in the base, the first clamping assembly comprises two first clamps, the two first clamps are movably connected to the base and are respectively positioned at two sides of the second through groove along a first direction, the second clamping assembly comprises two second clamps, the two second clamps are movably connected to the base and are respectively positioned at two sides of the second through groove along a second direction; the bottom plate set up in the base bottom, be provided with the PCB pad on the bottom plate, the PCB pad wears to establish inside the second through groove.

In some embodiments, the clamp further comprises: the cover plate is arranged at the top end of the base, a first through groove is formed in the top end of the cover plate, and the first through groove is positioned at the top of the second through groove; the two first side plates are respectively connected to one side of the base along the first direction and one side of the base along the second direction, and the first side plates are provided with connecting holes; the two second side plates are respectively connected to the other side of the base along the first direction and the other side of the base along the second direction.

In some embodiments, the two first clamps are respectively an adjustable linear clamp and a telescopic linear clamp, two first mounting grooves are formed in the base, the two first mounting grooves are respectively located at two sides of the second through groove along the first direction, and the adjustable linear clamp and the telescopic linear clamp are respectively and slidably connected inside the two first mounting grooves.

In some embodiments, the adjustable inline fixture includes: the adjustable straight-line plate and the first threaded column are connected in the first mounting groove in a sliding manner; the first threaded column is connected to one side, far away from the second through groove, of the adjustable straight plate, and the first threaded column penetrates through the connecting hole and is in threaded connection with the first side plate.

In some embodiments, the telescoping inline clamp includes: the telescopic straight-line plate is connected in the first mounting groove in a sliding manner, and is positioned on one side of the second side plate; the spring is arranged between the telescopic straight plate and the second side plate.

In some embodiments, the top end of the telescopic straight board is fixedly connected with a first guide plate, the top end of the cover plate is provided with a first guide groove, and the first guide plate is arranged inside the first guide groove in a penetrating manner and is in sliding connection with the first guide groove.

In some embodiments, the two second clamps are respectively an adjustable i-clamp and a telescopic i-clamp, two second mounting grooves are formed in the base, the two second mounting grooves are respectively located at two sides of the second through groove along the second direction, and the adjustable i-clamp and the telescopic i-clamp are respectively and slidably connected inside the two second mounting grooves.

In some embodiments, the adjustable i-clamp includes: the adjustable I-shaped plate is connected in the second mounting groove in a sliding mode, and is positioned on one side of the first side plate; the second threaded column is connected to one side, far away from the second through groove, of the adjustable I-shaped plate, and the second threaded column penetrates through the connecting hole and is in threaded connection with the first side plate.

In some embodiments, the telescoping i-clamp comprises: the telescopic I-shaped plate is connected in the second mounting groove in a sliding mode, and is positioned on one side of the second side plate; the spring is arranged between the telescopic I-shaped plate and the second side plate.

In some embodiments, the top end of the telescopic i-shaped plate is fixedly connected with a second guide plate, the top end of the cover plate is also provided with the second guide groove, and the second guide plate penetrates through the second guide groove and is in sliding connection with the second guide groove.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

The embodiment of the application provides a clamp for lamp bead test, which is characterized in that when lamp bead aging test is carried out, a lamp bead is placed in a second through groove, a first clamping assembly and a second clamping assembly are adjusted to fix the lamp bead, pins at the bottom of the lamp bead are in direct contact with PCB (printed circuit board) bonding pads on a bottom plate, then the lamp bead is electrified to carry out the aging test, the lamp bead is not required to be welded, and the lamp bead can be reused after the test is finished; in addition, the lamp beads of different sizes can be clamped and fixed by the first clamping component and the second clamping component, so that the clamp has compatibility, and the ageing test can be performed on single lamps of different types.

Drawings

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

FIG. 1 is an exploded view of an overall structure provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of an overall structure according to an embodiment of the present application;

FIG. 3 is a schematic view of a base according to an embodiment of the present application;

FIG. 4 is a schematic view of a second side plate according to an embodiment of the present application;

FIG. 5 is a schematic view of a first side panel according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an adjustable I-clamp according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an adjustable in-line clamp according to an embodiment of the present application;

FIG. 8 is a schematic view of a telescopic in-line clamp according to an embodiment of the present application;

Fig. 9 is a schematic view of a telescopic i-clamp according to an embodiment of the present application;

Fig. 10 is a schematic diagram of a cover plate according to an embodiment of the application.

In the figure: 1. a cover plate; 10. a first guide groove; 11. a second guide groove; 12. a first through groove;

2. A clamp body; 20. a first clamping assembly; 200. an adjustable in-line clamp; 2000. an adjustable straight board; 2001. a first threaded post; 201. a telescopic straight clamp; 2010. telescoping the straight board; 2011. a first guide plate; 21. a second clamping assembly; 210. an adjustable i-clamp; 2100. an adjustable I-plate; 2101. a second threaded post; 211. a telescopic I-shaped clamp; 2110. a telescoping I-plate; 2111. a second guide plate; 22. a base; 220. a first mounting groove; 221. a second mounting groove; 222. a second through slot; 223. a first through hole; 224. a second through hole; 23. a first side plate; 24. a second side plate;

3. a bottom plate; 30. and a PCB pad.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The embodiment of the application provides a clamp for a lamp bead test, which can solve the problem that a single lamp needs to be welded with a test board and the test clamp does not have compatibility.

Referring to fig. 1 to 10, an embodiment of the present application provides a fixture for a bead test, which includes: the clamp comprises a clamp body 2 and a bottom plate 3, wherein the clamp body 2 comprises a base 22, a first clamping assembly 20 and a second clamping assembly 21, the base 22 is provided with a second through groove 222, the first clamping assembly 20 comprises two first clamps which are movably connected to the base 22 and are respectively positioned at two sides of the second through groove 222 along a first direction, the second clamping assembly 21 comprises two second clamps which are movably connected to the base 22 and are respectively positioned at two sides of the second through groove 222 along a second direction; the bottom plate 3 is disposed at the bottom end of the base 22, and a PCB pad 30 is disposed on the bottom plate 3, and the PCB pad 30 penetrates through the second through slot 222.

In the application, when the lamp bead aging test is carried out, the lamp bead is placed in the second through groove 222, the first clamping component 20 and the second clamping component 21 are adjusted to fix the lamp bead, so that pins at the bottom of the lamp bead are in direct contact with the PCB bonding pads 30 on the bottom plate 3, then the lamp bead aging test is carried out by electrifying, the lamp bead is not required to be welded, and the lamp bead can be reused after the test is finished; in addition, the lamp beads with different sizes can be clamped and fixed by the first clamping assembly 20 and the second clamping assembly 21, so that the clamp has compatibility, and the ageing test can be performed on single lamps of different types.

The first direction is the Y direction in fig. 3, and the second direction is the X direction in fig. 3. When the lamp beads are placed in the second through groove 222, the lamp beads can be clamped and fixed on four sides through the first clamp and the second clamp.

The base plate 3 is a specific PCB board, and pins of the lamp beads contact the PCB pads 30, and the lamp beads are electrically conductive by switching on the power supply through the base plate 3, so that the lamp beads are lighted. The number of the PCB pads 30 on the base plate 3 may be determined according to the number of pins of the lamp beads, for example, 4-pin lamp beads (4-pin 1212 lamp beads or 1515 lamp beads) for different types, and in this embodiment, as shown in fig. 1, 4 PCB pads 30 are provided on the base plate 3. Only the area of each PCB bonding pad 30 is required to be ensured to be large enough, no matter what size of the 4-pin lamp beads are, the lamp beads can be electrified and conducted only by contacting the pins of the lamp beads with the PCB bonding pad 30, so that the lamp beads with different sizes can be electrified and aged under the condition that the lamp beads are not welded, and the purposes of saving cost and improving efficiency are achieved.

In other embodiments, the lamp beads with 6 pins or the lamp beads with 8 pins can be clamped and fixed, and the number of the corresponding PCB pads 30 is 6 or 8, so that no matter how many lamp beads have pins, only the corresponding number of the PCB pads 30 need to be replaced for conduction.

The PCB pads 30 and the chassis 3 may be integrally provided, and the chassis 3 may need to be replaced when a different number of PCB pads 30 are replaced. First through holes 223 with thread grooves on the inner walls are formed in the base 22 and the bottom plate 3, and the first through holes 223 are penetrated through by bolts, so that the base 22 is connected with the bottom plate 3, and the bottom plate 3 is convenient to replace; the PCB pads 30 and the base plate 3 may be separately provided, that is, the PCB pads 30 and the base plate 3 may be detachably connected, and in the case of separately provided, only the corresponding number of PCB pads 30 need to be replaced on the base plate 3 for the lamp beads with different pin numbers. Preferably, the PCB pad 30 and the chassis 3 are integrally provided.

On the basis of the above embodiment, in this embodiment, the fixture further includes: the cover plate 1, two first curb plates 23 and two second curb plates 24, cover plate 1 set up in base 22 top, and first logical groove 12 has been seted up on cover plate 1 top, and first logical groove 12 is located the second logical groove 222 top.

Wherein, two first mounting grooves 220 are formed on the base 22, the two first mounting grooves 220 are respectively located at two sides of the second through groove 222 along the first direction, and the adjustable linear clamp 200 and the telescopic linear clamp 201 are respectively slidably connected inside the two first mounting grooves 220. Two second mounting grooves 221 are further formed on the base 22, the two second mounting grooves 221 are respectively located at two sides of the second through groove 222 along the second direction, and the adjustable i-shaped clamp 210 and the telescopic i-shaped clamp 211 are respectively slidably connected inside the two second mounting grooves 221.

In this embodiment, the cover plate 1 is also provided with a first through hole 223, and the cover plate 1 and the base 22 can be connected by inserting a bolt through the first through hole 223 on the cover plate 1 and the first through hole 223 on the base 22. When the cover plate 1 is connected to the base 22, the center of the first through groove 12 coincides with the center of the second through groove 222 in the jig height direction.

The two first clamps are respectively an adjustable straight clamp 200 and a telescopic straight clamp 201, and the two second clamps are respectively an adjustable I-shaped clamp 210 and a telescopic I-shaped clamp 211. The two first side plates 23 are respectively connected with the adjustable linear clamp 200 and the adjustable I-shaped clamp 210, and the two second side plates 24 are respectively connected with the telescopic linear clamp 201 and the telescopic I-shaped clamp 211. Accordingly, the two first side plates 23 are connected to one side of the base 22 in the first direction and one side of the base 22 in the second direction, respectively, and the two second side plates 24 are connected to the other side of the base 22 in the first direction and the other side of the base 22 in the second direction, respectively.

Second through holes 224 are formed in four surfaces of the outer periphery of the base 22, second through holes 224 are also formed in the first side plate 23 and the second side plate 24, and screw grooves are formed in the second through holes 224. After aligning the second through holes 224 on the two first side plates 23 and the second through holes 224 on the two second side plates 24 with the second through holes 224 on different sides of the base 22, the first side plates 23 are connected with the base 22 and the second side plates 24 are connected with the base 22 using bolts. When the first side plate 23 and the second side plate 24 are not mounted on the base 22, as shown in fig. 3, the base 22 is mounted on the first side plate 23 and the second side plate 24, and then shown in fig. 1.

When the adjustable linear clamp 200 and the telescopic linear clamp 201 clamp and fix the lamp beads, the adjustable linear clamp 200 is adjusted when the positions of the lamp beads in the first direction need to be adjusted, and at the moment, the telescopic linear clamp 201 moves under the driving of the adjustable linear clamp 200 and the lamp beads.

Specifically, the adjustable inline fixture 200 includes: an adjustable linear plate 2000 and a first threaded post 2001, wherein the adjustable linear plate 2000 is slidably connected in the first mounting groove 220; the first threaded column 2001 is connected to the side of the adjustable straight plate 2000 far away from the second through groove 222, a connecting hole is formed in the first side plate 23, the first threaded column 2001 penetrates through the connecting hole, a nut is rotatably connected to the outer surface of the first side plate 23, and the first threaded column 2001 is in threaded connection with the first side plate 23 through the nut. Therefore, after the first threaded post 2001 passes through the connecting hole, it passes through the nut, and when the nut is turned, the first threaded post 2001 moves along the first direction, so as to drive the adjustable linear plate 2000 to move.

The telescopic inline clamp 201 includes: the telescopic linear plate 2010 and the springs, wherein the telescopic linear plate 2010 is slidably connected in the first mounting groove 220, and the telescopic linear plate 2010 is positioned at one side of the second side plate 24; the spring is disposed between the telescoping cross plate 2010 and the second side plate 24. The end of the telescopic straight plate 2010, which is close to the second side plate 24, is provided with a mounting hole, and one end of the spring is positioned in the mounting hole. When the adjustable linear clamp 200 and the telescopic linear clamp 201 clamp and fix the lamp beads, the nut is turned to adjust the positions of the lamp beads in the first direction, the positions of the adjustable linear clamp 200 can be adjusted, and the springs deform at the moment to drive the telescopic linear plate 2010 to move, so that the two sides of the lamp beads along the first direction are clamped by the adjustable linear plate 2000.

The adjustable i-clamp 210 includes: an adjustable i-plate 2100 and a second threaded post 2101, the adjustable i-plate 2100 being slidably coupled within the second mounting slot 221, the adjustable i-plate 2100 being located on one side of the first side plate 23; the second threaded post 2101 is connected to the side of the adjustable i-plate 2100 remote from the second through slot 222, and the second threaded post 2101 is threaded through the connecting hole and is in threaded connection with the first side plate 23. A nut is also rotatably coupled to the surface of the first side plate 23 to which the adjustable i-plate 2100 is coupled, and the second threaded post 2101 is screwed to the first side plate 23 by the nut. Thus, after the second threaded post 2101 is threaded through the connecting hole, it is threaded through the interior of the nut, and when the nut is turned, the second threaded post 2101 moves in a second direction, thereby driving the adjustable i-plate 2100 to move.

The telescopic i-clamp 211 includes: the telescopic I-shaped plate 2110 and the spring, the telescopic I-shaped plate 2110 is connected in the second mounting groove 221 in a sliding way, and the telescopic I-shaped plate 2110 is positioned on one side of the second side plate 24; the spring is disposed between the telescoping i-plate 2110 and the second side plate 24. The telescoping i-plate 2110 also defines a mounting hole adjacent the second side plate 24 and one end of the spring is positioned within the mounting hole. When the adjustable i-shaped clamp 210 and the telescopic i-shaped clamp 211 clamp and fix the lamp bead, and the position of the lamp bead in the second direction needs to be adjusted, the nut is turned, the position of the adjustable i-shaped clamp 210 can be adjusted, and at the moment, the spring deforms to drive the telescopic i-shaped plate 2110 to move, and the lamp bead is clamped by the telescopic i-shaped plate 2100 along the two sides in the second direction.

Thus, the adjustable in-line clamp 200 and the telescopic in-line clamp 201 can clamp two sides of the lamp bead in the first direction, and the adjustable i-clamp 210 and the telescopic i-clamp 211 can clamp two sides of the lamp bead in the second direction. According to the size of the lamp bead of the product, the positions of the adjustable I-shaped clamp 210 and the adjustable linear clamp 200 are adjusted through bolts, the telescopic I-shaped clamp 211 and the telescopic linear clamp 201 are moved to the side of the second side plate 24, the lamp bead is placed after being compressed by the springs, the lamp bead is pressed, the telescopic I-shaped clamp 211 and the telescopic linear clamp 201 are loosened, the lamp bead is clamped through the deformation force of the springs, the central position of the lamp bead is guaranteed to be overlapped with the central position of the PCB bonding pad 30, and therefore the lamp bead is fixed.

In this embodiment, the adjustable linear clamp 200 and the telescopic linear clamp 201 are respectively disposed on two sides of the second through groove 222 along the first direction, and the adjustable i-clamp 210 and the telescopic i-clamp 211 are respectively disposed on two sides of the second through groove 222 along the second direction, in other embodiments, the two sides of the second through groove 222 along the first direction may be both provided with the telescopic linear clamp 201, and the two sides along the second direction may be both provided with the telescopic i-clamp 211, which can achieve the same purpose, preferably, the two first clamps are respectively the adjustable linear clamp 200 and the telescopic linear clamp 201, and the two second clamps are respectively the adjustable i-clamp 210 and the telescopic i-clamp 211, so that the fixing stability is better, and meanwhile, after the lamp bead is clamped and fixed, the positions of the lamp bead can be adjusted again through the adjustable linear clamp 200 and the adjustable i-clamp 210.

In order to make the telescopic i-shaped clamp 211 and the telescopic linear clamp 201 more stable during sliding, in the above embodiment, the top end of the telescopic linear plate 2010 is fixedly connected with the first guide plate 2011, the top end of the cover plate 1 is provided with the first guide groove 10, and the first guide plate 2011 is inserted into the first guide groove 10 and is slidably connected with the first guide groove 10. The top end of the telescopic I-shaped plate 2110 is fixedly connected with a second guide plate 2111, the top end of the cover plate 1 is also provided with a second guide groove 11, and the second guide plate 2111 penetrates through the second guide groove 11 and is in sliding connection with the second guide groove 11.

When the spring connected to the telescopic linear board 2010 is telescopic, the telescopic linear board 2010 slides in the first mounting groove 220, the first guide plate 2011 slides in the first guide groove 10, otherwise, a user can move the telescopic linear board 2010 by moving the first guide plate 2011; when the spring coupled to the telescoping i-plate 2110 expands and contracts, the telescoping i-plate 2110 slides within the second mounting slot 221 and the second guide plate 2111 slides within the second guide slot 11, whereas the user can move the telescoping i-plate 2110 by moving the second guide plate 2111.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. Clamp for lamp bead test, which is characterized by comprising:

The clamp comprises a clamp body (2), wherein the clamp body (2) comprises a base (22), a first clamping assembly (20) and a second clamping assembly (21), a second through groove (222) is formed in the base (22), the first clamping assembly (20) comprises two first clamps, the two first clamps are movably connected to the base (22) and are respectively located at two sides of the second through groove (222) along a first direction, the second clamping assembly (21) comprises two second clamps, the two second clamps are movably connected to the base (22), and the two second clamps are respectively located at two sides of the second through groove (222) along a second direction;

The base plate (3), base plate (3) set up in base (22) bottom, be provided with PCB pad (30) on base plate (3), PCB pad (30) wear to establish inside second through groove (222).

2. The fixture for bead testing of claim 1, further comprising:

The cover plate (1), the cover plate (1) is arranged at the top end of the base (22), a first through groove (12) is formed in the top end of the cover plate (1), and the first through groove (12) is positioned at the top of the second through groove (222);

The two first side plates (23), the two first side plates (23) are respectively connected to one side of the base (22) along the first direction and one side of the base (22) along the second direction, and the first side plates (23) are provided with connecting holes;

And two second side plates (24), wherein the two second side plates (24) are respectively connected with the other side of the base (22) along the first direction and the other side of the base (22) along the second direction.

3. The fixture for bead testing of claim 2, wherein:

The two first clamps are respectively an adjustable straight clamp (200) and a telescopic straight clamp (201), two first mounting grooves (220) are formed in the base (22), the two first mounting grooves (220) are respectively located on two sides of the second through groove (222) along the first direction, and the adjustable straight clamp (200) and the telescopic straight clamp (201) are respectively and slidably connected inside the two first mounting grooves (220).

4. A fixture for bead testing according to claim 3, wherein said adjustable inline fixture (200) comprises:

an adjustable linear plate (2000), wherein the adjustable linear plate (2000) is slidably connected in the first mounting groove (220);

The first threaded column (2001), first threaded column (2001) connect in adjustable word board (2000) keep away from second through groove (222) one side, connecting hole is worn to establish to first threaded column (2001), and with first side board (23) threaded connection.

5. A fixture for bead testing according to claim 3, wherein said telescopic in-line fixture (201) comprises:

A telescopic straight-line board (2010), wherein the telescopic straight-line board (2010) is slidably connected in the first mounting groove (220), and the telescopic straight-line board (2010) is positioned at one side of the second side board (24);

and a spring arranged between the telescopic straight plate (2010) and the second side plate (24).

6. The fixture for bead testing of claim 5, wherein:

The telescopic horizontal plate is characterized in that a first guide plate (2011) is fixedly connected to the top end of the telescopic horizontal plate (2010), a first guide groove (10) is formed in the top end of the cover plate (1), and the first guide plate (2011) penetrates through the first guide groove (10) and is in sliding connection with the first guide groove (10).

7. The fixture for bead testing of claim 2, wherein:

the two second clamps are respectively an adjustable I-shaped clamp (210) and a telescopic I-shaped clamp (211), two second mounting grooves (221) are formed in the base (22), the two second mounting grooves (221) are respectively located on two sides of the second through groove (222) along the second direction, and the adjustable I-shaped clamp (210) and the telescopic I-shaped clamp (211) are respectively and slidably connected inside the two second mounting grooves (221).

8. The lamp bead testing fixture of claim 7, wherein the adjustable i-clamp (210) comprises:

An adjustable i-plate (2100), the adjustable i-plate (2100) being slidably connected within the second mounting groove (221), the adjustable i-plate (2100) being located on one side of the first side plate (23);

The second threaded column (2101), second threaded column (2101) connect in adjustable I-plate (2100) keep away from second through groove (222) one side, connecting hole is worn to establish to second threaded column (2101), and with first side board (23) threaded connection.

9. The lamp bead test fixture according to claim 7, wherein the telescoping i-clamp (211) comprises:

the telescopic I-shaped plate (2110) is connected in the second mounting groove (221) in a sliding mode, and the telescopic I-shaped plate (2110) is located on one side of the second side plate (24);

And a spring arranged between the telescopic I-shaped plate (2110) and the second side plate (24).

10. The fixture for bead testing of claim 9, wherein:

The top end of the telescopic I-shaped plate (2110) is fixedly connected with a second guide plate (2111), a second guide groove (11) is further formed in the top end of the cover plate (1), and the second guide plate (2111) penetrates through the second guide groove (11) and is in sliding connection with the second guide groove (11).