CN216883617U

CN216883617U - A kind of tool

Info

Publication number: CN216883617U
Application number: CN202220746692.4U
Authority: CN
Inventors: 赵云
Original assignee: Sceneray Co Ltd
Current assignee: Jingyu Medical Technology Suzhou Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-05
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a jig, which comprises: the test base is provided with a first surface, a plurality of external parts are arranged on the first surface, a plurality of connecting parts are arranged on the first surface, the test carrier plate is arranged above the first surface in a liftable mode, a placing groove used for containing a piece to be tested is arranged on the test carrier plate, and pins of the piece to be tested are electrically connected with the external parts when the test carrier plate is close to the first surface. The external connection parts are arranged on the first surface of the test base, all the external connection parts are connected with the test equipment through the external connection connector connected through the wires, the piece to be tested arranged on the test carrier plate is tested through the external connection connector, the drive mechanism drives the test carrier plate to be close to the first surface and enables the piece to be tested to be connected with the external connection parts, rapid butt joint and testing are achieved, and testing efficiency is improved.

Description

A kind of tool

Technical Field

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

Background

After a Printed Circuit Board (PCB) is formed through a plurality of manufacturing processes, components and electronic components are generally required to be soldered on the PCB, and since the solder is not cooled immediately after the components are soldered, the incompletely fixed solder may cause poor contact or open circuit between the components and the PCB. Therefore, the PCBs are formed after surface assembly, enterprises need to detect the connected PCBs through a testing procedure, the qualified PCBs are detected, and the qualified PCBAs are burned.

However, the conventional method for testing and burning the PCBA is not convenient enough, so that the testing and burning efficiency is not high. Therefore, a jig capable of efficiently testing and burning the PCBA is still needed, and the requirement is met.

SUMMERY OF THE UTILITY MODEL

The present invention provides a jig for solving the above problems.

The purpose of the utility model is realized by adopting the following technical scheme:

a jig, comprising:

the testing device comprises a testing base, a first testing module and a second testing module, wherein a first surface is arranged on the testing base, and a plurality of external connecting parts are arranged on the first surface and are used for electrically connecting pins of a piece to be tested;

the external connector is used for being connected with the external parts on the test base and is used for being connected with external test equipment;

the test carrier plate is arranged above the first surface in a lifting manner, a placing groove for accommodating a piece to be tested is arranged on the test carrier plate, a through hole is formed in the bottom of the placing groove, and the through hole is used for allowing pins of the piece to be tested to penetrate through and is electrically connected with the external connection part;

and the driving mechanism enables the test carrier plate to be close to the first surface and enables pins of the piece to be tested to be electrically connected with the external connection part.

In one embodiment, the external connector is a female connector arranged on the test base, and the external connector is used for being matched and connected with various types of male connectors and used for testing or burning the to-be-tested piece;

the piece to be detected is a PCBA board;

the test carrier plate is detachably arranged above the first surface;

the external connector is provided with a plurality of pinholes, and the pinholes are connected with the external parts in a one-to-one correspondence manner through leads.

In one embodiment, the test base further comprises a resilient member disposed on the first surface and a first guide member passing through the test carrier plate and adapted to guide the test carrier plate along the first guide member to be elevated relative to the first surface, the resilient member being disposed between the test carrier plate and the first surface of the test base for providing a restoring force to the test carrier plate moving away from the first surface when the test carrier plate is adjacent to the first surface.

In one embodiment, the drive mechanism comprises:

fixing the shaft sleeve;

the moving rod is in sliding fit with the fixed shaft sleeve, penetrates through the fixed shaft sleeve and is used for driving the piece to be detected;

and the adjusting rod is connected with the top of the moving rod and is used for driving the moving rod to lift.

In one embodiment, the driving mechanism includes a controller for controlling the moving rod to drive the workpiece to be detected to approach the first surface.

In one embodiment, the drive mechanism further comprises:

the contact structure is connected with the bottom of the moving rod, and a plurality of lower pressing rods are arranged on one side, facing the test carrier plate, of the contact structure and used for driving the to-be-tested piece to be close to the first surface under the action of the moving rod.

In one embodiment, the jig further comprises:

the side plate is positioned on the first surface of the test base;

the side plate is also provided with a pair of second guide pieces, and the touch structure is arranged on the second guide pieces and moves along the second guide pieces;

the side of curb plate is provided with the installation piece, the upper end of second guide is fixed on the installation piece, the lower extreme of second guide is fixed on the first surface.

In one embodiment, the pressing structure comprises a plurality of laminates arranged at intervals in the vertical direction, the laminates are connected through a plurality of connecting columns arranged at intervals in a dispersing mode, and guide holes used for being in sliding fit with the second guide pieces are formed in one sides, close to the side plates, of the laminates.

In one embodiment, the jig further comprises:

the side surface of the side plate is also provided with a bracket, and the fixed shaft sleeve is fixed at the lower end of the bracket;

the drive mechanism further includes: the connecting rod, the front end of adjusting the pole has the extension, the extending direction of extension and the length direction cross of adjusting the pole, the front end of adjusting the pole with the upper end of connecting rod is rotated and is connected, the lower extreme and the carriage release lever of connecting rod are connected, the one end of keeping away from the regulation pole of extension with the upper end of support is rotated and is connected, the rear end of adjusting the pole is used for going up and down under the exogenic action, with the extension with the tie point of support upper end is the fulcrum, the front end of adjusting the pole passes through the connecting rod drive the carriage release lever goes up and down.

In one embodiment, the bracket and the fixing shaft sleeve are integrally formed and integrally have a U-shaped structure with an opening, the extending direction of the extending portion is perpendicular to the length direction of the adjusting rod, the connecting rod comprises two connecting pieces having a U-shaped structure with an opening, the two connecting pieces are respectively located at two sides of the extending portion, and the opening of the connecting piece faces the extending portion.

In one embodiment, a limiting member is further disposed on the first surface of the test base, and when the test carrier descends, the limiting member is configured to limit a moving distance of the test carrier relative to the first surface.

Compared with the prior art, the utility model has the beneficial effects that at least:

the jig provided by the utility model comprises a test base, wherein a plurality of external connecting parts are arranged on the first surface of the test base, a placing groove for accommodating a piece to be tested is arranged on a test carrier plate, a through hole is formed in the bottom of the placing groove, and an external connector is used for being connected with the external connecting parts on the test base. When the jig works, the to-be-tested piece is placed in the placing groove of the test support plate, the position of the test support plate is adjusted through the driving mechanism, so that pins of the to-be-tested piece, close to the first surface, of the test support plate penetrate through the through holes and are electrically connected with the external connection part of the test base, the external connector is electrically connected with the external connection part of the test base and is also used for being connected with test equipment, the to-be-tested piece is quickly butted and tested with the test equipment, and the test efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a jig according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another view angle of the jig according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of another viewing angle of the jig according to the embodiment of the utility model.

In the figure: 1. testing the base; 11. an external connection part; 12. a first guide member; 13. an elastic member; 14. a first surface; 15. a side plate; 16. a traveler; 2. testing the carrier plate; 21. a through hole; 22. a placement groove; 3. a drive mechanism; 31. a travel bar; 32. fixing the shaft sleeve; 33. adjusting a rod; 34. a touch structure; 35. a lower pressure lever; 36. an extension portion; 37. a connecting rod; 38. a support; 4. and connecting the connector externally.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.

The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention.

Referring to fig. 1-3, the present invention provides a fixture for testing a PCBA board to be tested, the fixture comprising: test base 1, external connector 4, test carrier 2 and drive mechanism 3.

Be equipped with first surface 14 on the test base 1, be equipped with a plurality of external portion 11 on the first surface 14, external portion 11 is used for the stitch of the piece that awaits measuring of electric connection, for example, when the piece that awaits measuring is close to test base 1, external portion 11 is used for the stitch of the piece that awaits measuring of electric connection, and the piece that awaits measuring is PCBA for example and awaits measuring the board. Specifically, the first surface 14 of the test base 1 is disposed upward, and the external connection portion 11 on the first surface 14 is, for example, a metal needle sleeve or a gold needle sleeve, where the metal needle sleeve or the gold needle sleeve is used to connect pins of the PCBA board to be tested, and perform testing or burning on the PCBA board to be tested, and the following description will be given by taking the example that the component to be tested is the PCBA board to be tested.

The external connector 4 is provided with a plurality of pinholes, and the pinholes can be connected with the external parts 11 in a one-to-one correspondence manner through wires. All the external connecting parts 11 are connected with corresponding needle holes on the external connector 4 at the other end through corresponding wires, so that the needle holes on the external connector 4 are ensured to be in one-to-one correspondence with the external connecting parts 11 on the test base 1.

The test carrier plate 2 is arranged above the first surface 14 in a liftable manner, the test carrier plate 2 is provided with a placing groove 22 for accommodating a to-be-tested piece, a through hole 21 is formed in the bottom of the placing groove 22, and the through hole 21 is used for allowing a pin of the to-be-tested piece to penetrate through and electrically connected with the external portion 11, for example, the pin of the to-be-tested piece is electrically connected with the external portion 11 when the test carrier plate 2 is close to the first surface 14. The shape of the placing groove 22 in the test carrier 2 matches the shape of the board to be tested of the PCBA, and because the positions of the pins on different boards to be tested of the PCBA are not exactly the same, the board to be tested of the PCBA of the corresponding shape and the corresponding model is preferably placed in the placing groove 22 of the test carrier 2 of the corresponding model. The positions of the through holes 21 arranged on the test carrier plate 2 correspond to the positions of the external connection parts 11 on the test base 1 one by one, and when the PCBA board to be tested is placed in the placing groove 22, pins on the PCBA board to be tested can be ensured to penetrate through the through holes 21 to be connected with the external connection parts 11 on the test base 1. It should be noted that, when the board to be tested of the PCBA is tested and burned, the number of pins connected to the corresponding device is different. The test carrier 2 is preferably detachably disposed above the first surface 14, so that the fixture can be used for testing or burning various PCBA boards to be tested, and the arrangement position and number of the external connection part 11 can be adjusted accordingly when the PCBA boards to be tested are replaced. The liftable setting of test support plate 2 is on test base 1, and the benefit of design like this is, after PCBA waited to examine the board and place test or burn on test support plate 2, test support plate 2 drives PCBA waited to examine the board and test base 1 separation through going up and down, makes things convenient for operating personnel to take off fast and change next PCBA waited to examine the board same model, same production batch and tests, raises the efficiency.

The driving mechanism 3 is used for driving the test carrier plate 2 close to the first surface 14. The driving mechanism 3 is used for driving the PCBA to-be-tested board on the test carrier plate 2 to move, so that the PCBA to-be-tested board is connected with the external connection part 11 on the test base 1 without being pressed by an operator in a bare-handed manner.

Through setting up the external portion 11 that can be used for connecting the PCBA board to be tested on test base 1, the pinhole on external connector 4 is connected to the one-to-one correspondence of wire accessible hiding in test base 1 in external portion 11, when the PCBA board to be tested is placed on test carrier plate 2, pushes down the PCBA board to be tested through actuating mechanism 3, makes the stitch of the PCBA board to be tested on test carrier plate 2 be connected with external portion 11 on test carrier plate 2, thereby tests or burns the PCBA board to be tested through connecting external connector 4.

In one embodiment, the external connector 4 is a female connector disposed on the test base 1, and the external connector 4 is used for matching and connecting various types of male connectors and testing or burning a to-be-tested component, where the to-be-tested component is a PCBA board to be tested. The external connector 4 is, for example, a female head, the shape of the female head is unique, the male head for matching and plugging with the female head can be a plurality of types of male heads, the shapes of the plurality of types of male heads can be the same, and when the burned male head is inserted into the female head, the number of pin holes used for connecting the female head can be larger than that of the burned male head. Therefore, only different male heads are required to be replaced and inserted into the external connector 4, the PCBA to-be-tested board can be quickly tested and burnt, and in actual production, the efficiency on a production line is conveniently improved.

Preferably, the test base 1 further comprises a resilient member 13 and a first guide member 12 arranged on the first surface 14, the first guide member 12 penetrating the test carrier plate 2 and being adapted to guide the test carrier plate 2 along the first guide member 12 to be elevated with respect to the first surface 14, the resilient member 13 being arranged between the test carrier plate 2 and the first surface 14 of the test base 1 and being adapted to provide a restoring force for the test carrier plate 2 to move away from the first surface 14 when the test carrier plate 2 is close to the first surface 14. The elastic member 13 on the test base 1 is, for example, a coil spring, a scroll spring, an air spring, or the like. The number of the elastic members 13 may be multiple, the elastic members 13 are distributed at four corners of the rectangle on the first surface 14 of the test base 1 for elastically abutting against the periphery of the bottom of the test carrier 2, and when the acting force of the test carrier 2 pressed to be close to the test base 1 disappears, the elastic members 13 distributed around can stably lift the test carrier 2 in parallel relative to the first surface 14, so as to prevent local lifting or tilting, and prevent the pins of the board to be tested on the PCBA on the test carrier 2 from being bent and damaged.

The first guiding members 12 are, for example, four metal columns with smooth peripheral surfaces, the lower ends of the four metal columns are fixed on the first surface 14 of the testing base 1 in a state that the elastic member 13 naturally extends, the testing carrier plate 2 is slidably sleeved on the four metal columns, or the upper ends of the four metal columns are fixedly connected with the testing carrier plate 2, the lower ends of the four metal columns slide to penetrate through the first surface 14 of the testing base 1, when the PCBA board to be tested is pressed down in the placing groove 22 of the testing base 1 to move, the testing carrier plate 2 moves under the guiding action of the metal columns, the pins on the PCBA board to be tested can be ensured to be accurately connected with the external connection part 11, and deformation and damage when the pins are obliquely inserted into the external connection part 11 are prevented.

In one embodiment, the drive mechanism 3 includes: fixed axle sleeve 32, carriage release lever 31 and regulation pole 33, carriage release lever 31 and fixed axle sleeve 32 sliding fit, and run through fixed axle sleeve 32 for the drive the piece that awaits measuring. The adjusting rod 33 is connected to the top of the moving rod 31 for driving the moving rod 31 to move up and down. The position of the fixed shaft sleeve 32 is preferably fixed vertically above the test carrier plate 2, and the inside of the fixed shaft sleeve 32 is provided with a cylindrical through hole 21 matched with the outer diameter of the moving rod 31. During operation, the adjusting rod 33 drives the top of the moving rod 31 to enable the moving rod 31 to relatively lift in the fixed shaft sleeve 32, so that pins of a PCBA board to be tested placed on the test carrier plate 2 are connected to the external connection part 11 on the test base 1, and an operator can test or burn the PCBA board to be tested by using different male connectors in a matched connection mode.

Preferably, the driving mechanism 3 comprises a controller (not shown) for controlling the movement of the moving rod 31 to drive the object to be tested close to the first surface 14. The driving mechanism 3 is preferably an electric telescopic mechanism, the movable rod 31 is a driven part of the electric telescopic mechanism, and through the controller and the power supply, during operation, the controller controls the adjusting rod 33 to move, so that the movable rod 31 is controlled to extend out of and press down the PCBA to-be-tested part on the test carrier plate 2, pins of the PCBA to-be-tested part are connected to the external connection part 11, an operator only needs to connect a male connector for testing or burning to the external connection connector 4 in sequence, and through corresponding testing and burning equipment, the PCBA to-be-tested part can be quickly tested or burned.

The drive mechanism 3 may further include: and the contact structure 34, the contact structure 34 is connected with the bottom of the moving rod 31, and one side of the contact structure 34 facing the test carrier plate 2 is provided with a plurality of lower pressing rods 35 for driving the piece to be tested to be close to the first surface 14 under the action of the moving rod 31. The contact structure 34 may be a rectangular plate connected to the bottom of the moving rod 31, and a plurality of lower pressing rods 35 vertically arranged on the rectangular plate are fixedly connected to the rectangular plate. When the test device works, the driving mechanism 3 descends by driving the contact pressure structure 34, the contact pressure mechanism pushes the PCBA to-be-tested plate through the lower pressure rod 35, pins of the PCBA to-be-tested plate are connected with the external connection part 11 of the test base 1, the PCBA to-be-tested plate is conveniently and rapidly connected with the external connection part 11 of the test base 1, and the PCBA to-be-tested plate is tested or burned. Meanwhile, the plurality of lower pressing rods 35 fixed on the rectangular plate have smaller contact surfaces with the PCBA to-be-tested plate when the PCBA to-be-tested plate is pressed down, and components and circuits on the PCBA to-be-tested plate are not easily damaged when the PCBA to-be-tested plate is tested and burned.

Preferably, the driving mechanism 3 is arranged above the test carrier plate 2, wherein the lower pressing rod 35 can be connected with a rubber buffer column, so that the PCBA to-be-tested plate is prevented from being damaged or even broken due to the fact that the lower pressing rod 35 is driven to have larger impact when the PCBA to-be-tested plate is pressed down. The preferred perpendicular PCBA of depression bar 35 of actuating mechanism 3 treats the surface of board, and the depression bar 35 of perpendicular setting can guarantee that PCBA treats that the board is moving down when waiting to test the board when pushing down PCBA, and all stitches are all vertical simultaneously and are inserted the external portion 11 on the test base 1, prevent that partial stitch from because to lead to the deformation damage with connecting portion right inaccurate when the inserted process.

Preferably, the jig further comprises: the side plate 15 is located on the first surface 14 of the test base 1, the pair of second guide pieces are located on the side plate 15, the contact structure 34 is arranged on the second guide pieces and moves along the second guide pieces, the side face of the side plate 15 is provided with a mounting block, the upper end of each second guide piece is fixed on the mounting block, and the lower end of each second guide piece is fixed on the first surface 14. In one embodiment, the second guiding element is, for example, a pair of sliding posts 16, which serve as a guide when the contact structure 34 slides, and the side plate 15 is preferably perpendicular to the first surface 14 and close to the outer connecting portion 11 on the first surface 14, wherein the top of the sliding posts 16 is connected to the side plate 15 through a mounting block, which may be a metal block with a slot welded to the side plate 15 at a certain height. In addition, a corresponding slot may be formed in the first surface 14 to capture the bottom end of the spool 16, and the mounting block may engage the receptacle formed in the first surface 14 to secure the spool 16. When the touch structure 34 moves perpendicularly on first surface 14, can guarantee through traveller 16 that touch structure 34 is parallel with first surface 14 all the time, when waiting to examine the board test or burn to PCBA, conveniently drive PCBA fast and wait to examine the external portion 11 that the board is connected on test base 1, except this, touch structure 34 parallel with first surface 14 all the time when drive PCBA waits to examine the board, can guarantee that PCBA waits to examine the equal vertical insertion of stitch on the board on external portion 11, guarantee good electric connection.

Preferably, the touch structure 34 includes a plurality of laminates arranged at intervals in a vertical direction, the vertical direction is perpendicular to the first surface 14, the laminates are connected by a plurality of connecting columns arranged at intervals in a dispersing manner, and a guide hole for sliding fit with the second guide member is arranged at one side of the laminates close to the side plate 15. All connect through the spliced pole between a plurality of plywoods, make a plurality of plywoods all keep parallel, when touch and press the perpendicular first surface 14 drive PCBA of structure 34 and wait to examine the board and connect test base 1, the cooperation stability between a plurality of plywoods and the second guide is stronger, can be stable wait to examine quick the connection of board on test base 1 with PCBA to connect external connector 4 through the public head of different equipment, be used for quick test or burn.

In one embodiment, the jig further comprises: the bracket 38 is arranged on the side surface of the side plate 15, the fixing shaft sleeve 32 is fixed at the lower end of the bracket 38, and the bracket 38 and the fixing shaft sleeve 32 can also be manufactured by an integral molding technology and are integrally in a U-shaped structure with an opening expanding. Referring to fig. 1, the bracket 38 is a metal connecting member welded to the side plate 15, and the lower end of the metal connecting member is fixedly connected to the fixing boss 32, and the shaft hole in the fixing boss 32 is perpendicular to the first surface 14.

Referring to fig. 3, the driving mechanism 3 may further include: the connecting rod 37, the front end of the adjusting rod 33 has an extending part 36, the extending direction of the extending part 36 intersects with the length direction of the adjusting rod 33, preferably perpendicular to the extending part 36, the extending part 36 and the adjusting rod 33 form an L-shaped structure, when the adjusting rod 33 is horizontally placed, round holes are formed in the front end of the adjusting rod 33 and the lower part of the extending part 36, the front end of the adjusting rod 33 is rotatably connected with the upper end of the connecting rod 37, the lower end of the connecting rod 37 is connected with the moving rod 31, for example, rotatably connected, the connecting rod 37 preferably comprises two connecting pieces which are in a U-shaped structure with openings expanded, the two connecting pieces are respectively located on two sides of the extending part 36, and the openings of the connecting pieces face the extending part 36, so that an avoiding space is formed for the extending part 36.

One end of the extending part 36 far from the adjusting rod 33 is rotatably connected with the upper end of the bracket 38, the rear end of the adjusting rod 33 is used for lifting under the action of external force, and the front end of the adjusting rod 33 drives the moving rod 31 to lift through the connecting rod 37 by taking the connecting point of the extending part 36 and the upper end of the bracket 38 as a fulcrum. Taking an actual working process as an example, an operator manually lifts a handle of the adjusting rod 33, a joint of an extending part 36 on the handle and the upper end of the bracket 38 serves as a rotating fulcrum of the adjusting rod 33, the adjusting rod 33 pushes the connecting rod 37 downwards, after the upper end of the connecting rod 37 is pushed, the lower end is driven to push the upper end of the moving rod 31 to move downwards, so that the moving rod 31 drives a PCBA board to be tested to move downwards and is connected with an external connecting part 11 on the testing base 1, the PCBA board to be tested is conveniently and quickly connected through transmission, different male connectors are connected through the external connector 4, the PCBA board to be tested can be tested or burned efficiently by adopting corresponding testing or burning equipment, compared with a traditional testing or burning mode, pins of the PCBA board to be tested do not need to be repeatedly connected with different bases, and the working efficiency is improved.

Preferably, the length of the through hole 21 is smaller than the length of the pins of the to-be-tested object, when the to-be-tested object is placed in the placing groove 22, the pins of the to-be-tested object are exposed from the through hole 21 of the placing groove 22 of the test carrier board 2 towards the first surface 14, and the pins of the to-be-tested board correspond to the external connection parts 11 in position one to one. The through hole 21 may also be a larger rectangular hole formed in the test carrier plate 2, and when the to-be-tested piece is placed in the placing groove 22, all pins on the to-be-tested piece pass through the through hole 21, and the pins do not need to be in one-to-one correspondence with the positions of the through holes 21 on the test carrier plate 2. In addition, the length of the pins on the PCBA board to be tested is preferably smaller than the sum of the lengths of the through holes 21 and the external connecting parts 11, so that the pins on the PCBA board to be tested are prevented from being deformed after passing through the through holes 21 and then being connected to the external connecting parts 11.

Preferably, a limiting member (not shown) is further disposed on the first surface 14 of the test base 1, and the limiting member is used for limiting a moving distance of the test carrier 2 relative to the first surface 14 when the test carrier 2 descends. Referring to fig. 1, the limiting members may be a set of cylinders located below the test carrier 2, and when the test carrier 2 with the PCBA to-be-tested board falls to the minimum height, the limiting members may play a role of blocking, so as to prevent the test carrier 2 from excessively extruding the external connection portion 11 on the test base 1, which may cause damage to the external connection portion 11.

Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, all of which shall fall within the scope of the appended claims.

Claims

1. A jig, comprising:

2. The jig of claim 1, wherein the external connector is a female connector arranged on the test base, and the external connector is used for being connected with multiple types of male connectors in a matching manner and used for testing or burning the to-be-tested piece;

the piece to be detected is a PCBA board;

the test carrier plate is detachably arranged above the first surface;

3. The apparatus of claim 1, wherein the test base further comprises a resilient member and a first guide member disposed on the first surface, the first guide member passing through the test carrier and guiding the test carrier to move along the first guide member relative to the first surface, the resilient member being disposed between the test carrier and the first surface of the test base and providing a restoring force for the test carrier to move away from the first surface when the test carrier is close to the first surface.

4. The jig of claim 1, wherein the drive mechanism comprises:

fixing the shaft sleeve;

5. The apparatus according to claim 4, wherein the driving mechanism includes a controller for controlling the movable rod to drive the object to be tested to approach the first surface.

6. A jig according to claim 4 or 5, wherein the drive mechanism further comprises:

7. The jig of claim 6, further comprising:

the side plate is positioned on the first surface of the test base;

8. The jig of claim 7, wherein the pressing structure comprises a plurality of laminates arranged at intervals in the vertical direction, the laminates are connected through a plurality of connecting columns arranged at intervals in a dispersing manner, and guide holes for sliding fit with the second guide members are formed in one sides of the laminates, which are close to the side plates.

9. The jig of claim 7, further comprising:

the drive mechanism further includes: the front end of the adjusting rod is provided with an extending part, the extending direction of the extending part is crossed with the length direction of the adjusting rod, the front end of the adjusting rod is rotatably connected with the upper end of the connecting rod, the lower end of the connecting rod is connected with the moving rod, one end, far away from the adjusting rod, of the extending part is rotatably connected with the upper end of the support, the rear end of the adjusting rod is used for lifting under the action of external force, the connecting point of the extending part and the upper end of the support serves as a fulcrum, and the front end of the adjusting rod drives the moving rod to lift through the connecting rod.

10. The jig of claim 9, wherein the bracket and the fixing shaft sleeve are integrally formed and have an opening-expanding U-shaped structure, the extending direction of the extending portion is perpendicular to the length direction of the adjusting rod, the connecting rod comprises two connecting members having an opening-expanding U-shaped structure, the two connecting members are respectively located at two sides of the extending portion, and the opening of the connecting member faces the extending portion.

11. The apparatus of claim 1, wherein a limiting member is further disposed on the first surface of the test base, and the limiting member is used to limit a moving distance of the test carrier relative to the first surface when the test carrier descends.