PCB (Printed Circuit Board) test fixture for large-size multi-channel TR (Transmitter-Receiver) assembly

Abstract

The utility model discloses a PCB test fixture of a large-size multi-channel TR assembly, the PCB test fixture is used for testing a PCB, one side of the PCB is provided with a plurality of connectors, the PCB test fixture comprises a base, a vertical column, a moving plate, a lifting assembly, a first connecting plate, a plurality of adapters and a mounting plate, the base is provided with a first seat surface and a second seat surface which are oppositely arranged in the thickness direction of the base; the stand column is arranged on one side of the first seat surface; the movable plate sleeves the periphery of the stand column and is in sliding connection with the stand column; the lifting assembly is connected between the movable plate and the base; a plurality of first through holes are formed in the first connecting plate; the adapters penetrate through the corresponding first through holes and are connected with the first connecting plate; a plurality of second through holes are formed in the mounting plate, the PCB is arranged on the side, away from the first connecting plate, of the mounting plate, and the connectors penetrate through the corresponding second through holes. When the size of the to-be-tested PCB is large and the number of connectors is large, the PCB test fixture can still test the to-be-tested PCB.

Description

Technical Field

[0001] The present application relates to the technical field of TR component testing, and in particular to a PCB board testing fixture for a large-size multi-channel TR component. Background Art

[0002] PCB (Printed Circuit Board), also known as printed circuit board in Chinese, is a key electronic interconnection part of electronic products. Its main function is to connect various electronic components through circuits, play the role of conduction and transmission.

[0003] In the related art, a test fixture is used to test the PCB board. The existing test fixture cannot meet the test requirements for large-size multi-channel PCB boards. Utility Model Content

[0004] The main purpose of the present application is to provide a PCB board test fixture for a large-size multi-channel TR component, aiming to solve the problem that the existing test fixture cannot test large-size multi-channel PCB boards.

[0005] To achieve the above-mentioned purpose, the present application provides a PCB board test fixture of a large-size multi-channel TR component, which is used for testing a PCB board. One side of the PCB board has multiple connectors. The PCB board test fixture includes a base, a column, a movable plate, a lifting assembly, a first connecting plate, multiple adapters and a mounting plate, wherein the base has a first seat surface and a second seat surface that are arranged opposite to each other in the thickness direction of the base; the column extends along the thickness direction of the base, and the column is arranged on a side of the first seat surface that is away from the second seat surface; the movable plate is located on a side of the first seat surface that is away from the second seat surface, the movable plate is sleeved on the outer periphery of the column and is slidably connected to the column, and the movable plate has the freedom to move along the thickness direction of the base; the lifting assembly is connected between the movable plate and the base, The lifting assembly drives the movable plate to move along the thickness direction of the base in response to the driving force; the first connecting plate is arranged on the side of the movable plate away from the base, and there is a gap between the first connecting plate and the movable plate, and the first connecting plate is provided with a plurality of first through holes extending along the thickness direction of the base, and the plurality of first through holes correspond one-to-one to the plurality of connectors; the plurality of adapters correspond one-to-one to the plurality of first through holes and pass through the corresponding first through holes, and the adapters are connected to the first connecting plate; the mounting plate is fixed to an end of the column away from the base, and the mounting plate is provided with a plurality of second through holes extending along the thickness direction of the base, and the PCB board is arranged on the side of the mounting plate away from the first connecting plate, and the plurality of connectors correspond one-to-one to the plurality of second through holes and pass through the corresponding second through holes.

[0006] Optionally, the PCB board test fixture also includes a second connecting plate, which is fixed to the side of the first connecting plate facing away from the movable plate, and the second connecting plate is provided with a plurality of third through holes extending along the thickness direction of the base; wherein the plurality of third through holes correspond one-to-one to the plurality of adapters, and an end of each adapter close to the second connecting plate is located in the corresponding third through hole.

[0007] Optionally, one end of the third through hole away from the first connecting plate has a chamfer.

[0008] Optionally, the PCB board test fixture also includes a cover plate and a plurality of screws, wherein the cover plate is arranged on the side of the mounting plate away from the base; the plurality of screws extend along the thickness direction of the base, the screws pass through the cover plate and are threadedly connected to the cover plate, and one end of the screw close to the mounting plate is threadedly connected to the mounting plate; wherein the plurality of screws are spaced apart and arranged on the periphery of the PCB board.

[0009] Optionally, the PCB board test fixture also includes a pressing plate, which is arranged at the center of a side of the cover plate away from the mounting plate; wherein the pressing plate is threadedly connected to the cover plate and the mounting plate through screws at corresponding positions.

[0010] Optionally, the PCB board test fixture further includes a plurality of handles, the plurality of handles corresponding to the plurality of screws one by one, and each handle is fixed to an end of the screw away from the mounting plate.

[0011] Optionally, a groove is provided on a side of the mounting plate facing away from the base, and the PCB board is located in the groove.

[0012] Optionally, a fourth through hole is provided on a side of the mounting plate facing the base, and the fourth through hole extends along the thickness direction of the base and is connected to the groove.

[0013] Optionally, a plurality of screw holes are provided on the PCB board; the PCB board test fixture also includes a plurality of positioning columns, the plurality of positioning columns correspond to the plurality of screw holes one by one and pass through the corresponding screw holes, the positioning columns extend along the thickness direction of the base, the positioning columns are fixed to the mounting plate, and the outer periphery of the positioning columns fits with the screw holes.

[0014] Optionally, the lifting assembly includes a screw, a first movable part, a second movable part, a first rotating rod and a second rotating rod, wherein the axial direction of the screw is perpendicular to the thickness direction of the base, the screw is rotatably connected to the side of the movable plate facing the base, and the screw has the freedom to rotate around its own axial direction; the first movable part is threadedly connected to the outer periphery of the screw; the second movable part is slidably connected to the side of the base facing the movable plate, the second movable part has the freedom to slide along the axial direction of the screw, and the second movable part and the first movable part are arranged opposite to each other in the thickness direction of the base; one end of the first rotating rod is rotatably connected to the first movable part, and the other end is rotatably connected to the base; one end of the second rotating rod is rotatably connected to the second movable part, and the other end is rotatably connected to the movable plate, the first rotating rod is rotatably connected to the second rotating rod at the center, and the first rotating rod and the second rotating rod both have the freedom to rotate around a first direction, and the first direction is respectively perpendicular to the thickness direction of the base and the axial direction of the screw.

[0015] The embodiment of the present application proposes a PCB board test fixture for a large-size multi-channel TR component, in which the PCB board is arranged on a side of the mounting plate away from the first connecting plate, and multiple connectors on the PCB board pass through corresponding second through holes. The movable plate is driven by the lifting assembly to approach the mounting plate along the thickness direction of the base, and the movable plate drives the first connecting plate to approach the mounting plate along the thickness direction of the base, and the mounting plate drives multiple adapters to approach the mounting plate along the thickness direction of the base until each adapter is connected to the corresponding connector respectively. At this time, one end of each adapter away from the corresponding connector is connected to an external instrument, and each connector on the PCB board is tested. When the size of the PCB board to be tested is large and there are many connectors, the PCB board test fixture of the present application can still test the PCB board to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a PCB board test fixture for a large-size multi-channel TR component provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A structural schematic diagram of another perspective of the embodiment;

[0018] Figure 3 for Figure 1 A magnified view of the structure at center;

[0019] Figure 4 for Figure 2 A magnified view of the structure at B in the middle;

[0020] Figure 5 A schematic diagram of the structure of the mounting plate of a PCB board test fixture for a large-size multi-channel TR component provided in an embodiment of the present application;

[0021] Figure 6A schematic structural diagram of a lifting assembly of a PCB board test fixture for a large-size multi-channel TR assembly provided in an embodiment of the present application;

[0022] Figure 7 for Figure 6 A schematic structural diagram of another perspective of the embodiment.

[0023] In the figure: 1. base; 2. column; 3. movable plate; 4. lifting assembly; 41. screw; 42. first movable part; 43. second movable part; 44. first rotating rod; 45. second rotating rod; 5. first connecting plate; 51. first through hole; 6. adapter; 7. mounting plate; 71. second through hole; 72. groove; 73. positioning column; 74. fourth through hole; 8. second connecting plate; 81. third through hole; 91. cover plate; 93. handle; 94. pressure plate.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] refer to Figure 1 to Figure 6 The embodiment of the present application provides a PCB board test fixture of a large-size multi-channel TR component, which is used to test the PCB board. One side of the PCB board has multiple connectors. The PCB board test fixture may include a base 1, a column 2, a movable plate 3, a lifting component 4, a first connecting plate 5, multiple adapters 6 and a mounting plate 7, wherein the base 1 has a first seat surface and a second seat surface that are arranged opposite to each other in the thickness direction of the base 1; the column 2 extends along the thickness direction of the base 1, and the column 2 is arranged on the side of the first seat surface away from the second seat surface; the movable plate 3 is located on the side of the first seat surface away from the second seat surface, the movable plate 3 is sleeved on the outer periphery of the column 2 and is slidably connected to the column 2, and the movable plate 3 has the freedom to move along the thickness direction of the base 1; the lifting component 4 is connected between the movable plate 3 and the base 1, and the lifting component 4 responds to the driving The power drives the movable plate 3 to move along the thickness direction of the base 1; the first connecting plate 5 is arranged on the side of the movable plate 3 away from the base 1, and there is a gap between the first connecting plate 5 and the movable plate 3, and the first connecting plate 5 is provided with a plurality of first through holes 51 extending along the thickness direction of the base 1, and the plurality of first through holes 51 correspond one-to-one with the plurality of connectors; the plurality of adapters 6 correspond one-to-one with the plurality of first through holes 51 and pass through the corresponding first through holes 51, and the adapters 6 are connected to the first connecting plate 5; the mounting plate 7 is fixed to the end of the column 2 away from the base 1, the mounting plate 7, and the mounting plate 7 is provided with a plurality of second through holes 71 extending along the thickness direction of the base 1, and the PCB board is arranged on the side of the mounting plate 7 away from the first connecting plate 5, and the plurality of connectors correspond one-to-one with the plurality of second through holes 71 and pass through the corresponding second through holes 71.

[0030] The embodiment of the present application proposes a PCB board test fixture for a large-size multi-channel TR component, in which the PCB board is arranged on a side of the mounting plate 7 away from the first connecting plate 5, and multiple connectors on the PCB board pass through the corresponding second through holes 71. The movable plate 3 is driven by the lifting assembly 4 to approach the mounting plate 7 along the thickness direction of the base 1, and the movable plate 3 drives the first connecting plate 5 to approach the mounting plate 7 along the thickness direction of the base 1, and the mounting plate 7 drives multiple adapters 6 to approach the mounting plate 7 along the thickness direction of the base 1 until each adapter 6 is connected to the corresponding connector respectively. At this time, one end of each adapter 6 away from the corresponding connector is connected to an external instrument, and each connector on the PCB board is tested. When the size of the PCB board to be tested is large and there are many connectors, the PCB board test fixture of the present application can still test the PCB board to be tested.

[0031] It should be understood that the external instrument may be an oscilloscope, an analyzer, and the like.

[0032] Furthermore, there can be multiple columns 2, and the movable plate 3 is slidably connected to the multiple columns 2 at the same time. In this way, when testing a large-sized PCB board, the base 1 supports the mounting plate 7 more stably, and the movement process of the movable plate 3 is also more stable.

[0033] Among them, a supporting structure can be set between the movable plate 3 and the first connecting plate 5 to create a gap between the movable plate 3 and the first connecting plate 5. The supporting structure can be sleeved on the outer periphery of the column 2 and fixed to the movable plate 3. The first connecting plate 5 can also be sleeved on the outer periphery of the column 2 and fixed to the supporting structure. In this way, when the movable plate 3 moves, the first connecting plate 5 can be driven to move by the supporting structure. It should be understood that the first connecting plate 5 and the supporting structure are both movably connected to the column 2. In this way, the supporting structure does not occupy the space of the adapter 6 on the first connecting plate 5, so as to prevent the volume of the PCB board testing device from being further increased. The supporting structure can be a hollow block structure to reduce the weight of the supporting structure and facilitate the movement of the PCB board testing device. In addition, pull rods can be set on both sides of the base 1, so that it is more convenient to move the PCB board testing device through the Taidong pull rods.

[0034] like Figure 2 As shown, the PCB board of the large-size multi-channel TR component to be tested is 375 mm long, 262 mm wide, and has 144 channels, and can be tested by the PCB board testing device in this application.

[0035] It should be noted that the wiring connecting the adapter 6 to the external instrument can be arranged through the gap between the movable plate 3 and the first connecting plate 5 .

[0036] refer to Figure 1 , Figure 2 and Figure 4In an exemplary embodiment, the PCB board test fixture may further include a second connecting plate 8, which is fixed to a side of the first connecting plate 5 away from the movable plate 3, and is provided with a plurality of third through holes 81 extending along the thickness direction of the base 1; wherein the plurality of third through holes 81 correspond one-to-one to the plurality of adapters 6, and one end of each adapter 6 close to the second connecting plate 8 is located in the corresponding third through hole 81; and one end of the third through hole 81 away from the first connecting plate 5 has a chamfer.

[0037] Specifically, when the first connecting plate 5 approaches the mounting plate 7 along the thickness direction of the base 1, the first connecting plate 5 will drive the second connecting plate 8 to approach the mounting plate 7 along the thickness direction of the base 1 until the connector passes through the third through hole 81 and is connected to the adapter 6. In this way, the connection between the connector and the adapter 6 is in the third through hole 81, which can better protect the PCB board to be tested and the adapter 6.

[0038] Furthermore, when the end of the third through hole 81 away from the first connecting plate 5 has a chamfer, the process of the connector entering the third through hole 81 is smoother, and even if the position of the connector is offset before entering the third through hole 81, such as slight bending, etc., it can smoothly enter the third through hole 81 and connect with the corresponding adapter 6 through the chamfer; the chamfer of the third through hole 81 can be 90°.

[0039] Furthermore, the first connecting plate 5 and the second connecting plate 8 can be partially fitted together, and a limit ring can be set on the outer periphery of the adapter 6. The diameter of the limit ring is larger than the diameter of the first through hole 51 and the diameter of the third through hole 81. The limit ring is located between the first connecting plate 5 and the second connecting plate 8. The adapter 6 has the freedom to move in the thickness direction of the base 1. At this time, relative to the thickness direction of the base 1, the adapter 6 has the freedom to float up and down within a certain range. When the lifting assembly 4 drives the adapter 6 to connect to the corresponding connector, a certain time error is allowed to stop the lifting assembly 4, thereby protecting the PCB board.

[0040] It should be understood that when the PCB board to be tested is replaced, it is only necessary to replace the mounting plate 7, the first connecting plate 5, the second connecting plate 8 and the adapter 6 corresponding to the PCB board to carry out the test, and the operation is convenient and quick; at the same time, when the PCB board to be tested is replaced, the length of the connector extending out of the second through hole 71 along the thickness direction of the base 1 is different, and the lifting assembly 4 can be used to adjust the position relationship between the adapter 6 and the corresponding connector in the thickness direction of the base 1 to ensure that the adapter 6 is connected to the corresponding connector.

[0041] refer to Figure 1In an exemplary embodiment, the PCB board test fixture may further include a cover plate 91 and a plurality of screws, wherein the cover plate 91 is arranged on a side of the mounting plate 7 away from the base 1; the plurality of screws extend along the thickness direction of the base 1, the screws penetrate the cover plate 91 and are threadedly connected to the cover plate 91, and one end of the screw close to the mounting plate 7 is threadedly connected to the mounting plate 7; wherein the plurality of screws are arranged at intervals on the periphery of the PCB board; a groove 72 is arranged on a side of the mounting plate 7 away from the base 1, and the PCB board is located in the groove 72.

[0042] Specifically, after the PCB board is arranged on the side of the mounting plate 7 away from the base 1 , the cover plate 91 and the mounting plate 7 are connected by screws, so that the PCB board is clamped between the cover plate 91 and the mounting plate 7 .

[0043] Furthermore, the PCB board is set in the groove 72. When connecting the cover plate 91 and the mounting plate 7, the screws can be tightened until the cover plate 91 and the mounting plate 7 are fitted. At this time, the PCB board is located in the groove 72, and the cover plate 91 will not squeeze the PCB board, effectively preventing damage to the PCB board.

[0044] The depth of the groove 72 can be determined according to the height of the PCB in the thickness direction of the base 1 to ensure that after the cover plate 91 is attached to the mounting plate 7 , the cover plate 91 just contacts the PCB.

[0045] refer to Figure 1 In an exemplary embodiment, the PCB board test fixture may further include a pressing plate 94, which is arranged at the center of a side of the cover plate 91 away from the mounting plate 7; wherein the pressing plate 94 is threadedly connected to the cover plate 91 and the mounting plate 7 through screws at corresponding positions; the PCB board test fixture may further include a plurality of handles 93, the plurality of handles 93 correspond to the plurality of screws one by one, and each handle 93 is fixed to an end of the screw away from the mounting plate 7.

[0046] Specifically, the cover 91 can be made of plastic. After the adapter 6 approaches the corresponding connector, if it does not stop moving in time, it will push the corresponding connector and drive the PCB board to squeeze the cover 91. The cover 91 is connected to the mounting plate 7 by screws, and the pressure plate 94 is connected to the side of the cover 91 away from the mounting plate 7 by screws, which can effectively prevent the cover 91 from being squeezed by the PCB board and deformed.

[0047] Furthermore, the handle 93 can be in the shape of a "7", then the handle 93 has a short side and a long side, the angle between the short side and the long side can be 120°, and the end face of the short side is connected to the end of the corresponding screw away from the mounting plate 7, so that it is more convenient to turn the screw through the handle 93, and when the angle between the short side and the long side is 120°, it is convenient to grasp the long side of the handle 93, and when grasping the long side of the handle 93 to turn the screw, the force arm for applying force is longer, and rotation is more labor-saving.

[0048] refer to Figure 5 In an exemplary embodiment, a plurality of screw holes are provided on the PCB board; the PCB board test fixture may further include a plurality of positioning posts 73, the plurality of positioning posts 73 correspond to the plurality of screw holes one by one and pass through the corresponding screw holes, the positioning posts 73 extend along the thickness direction of the base 1, the positioning posts 73 are fixed to the mounting plate 7, and the outer periphery of the positioning posts 73 fits with the screw holes; a fourth through hole 74 is provided on one side of the mounting plate 7 facing the base 1, the fourth through hole 74 extends along the thickness direction of the base 1 and is connected to the groove 72.

[0049] Specifically, multiple positioning columns 73 can pass through corresponding screw holes, and when the outer periphery of the positioning columns 73 fits with the screw holes, the PCB board only has the freedom to move along the thickness direction of the base 1. When the adapter 6 is driven by the lifting assembly 4 to connect the connector, the PCB board will not move in the horizontal direction, and the connection is more stable.

[0050] Furthermore, when the PCB board needs to be removed, the staff can reach into the fourth through hole 74 from the side of the mounting plate 7 facing the base 1 and push the PCB board along the thickness direction of the base 1 until it is separated from the positioning column 73, to prevent the PCB board from being difficult to remove when it is located in the groove 72.

[0051] refer to Figure 6 and Figure 7 In an exemplary embodiment, the lifting assembly 4 may include a screw 41, a first moving portion 42, a second moving portion 43, a first rotating rod 44 and a second rotating rod 45, wherein the axial direction of the screw 41 is perpendicular to the thickness direction of the base 1, the screw 41 is rotatably connected to the side of the moving plate 3 facing the base 1, and the screw 41 has the freedom to rotate around its own axial direction; the first moving portion 42 is threadedly connected to the outer periphery of the screw 41; the second moving portion 43 is slidably connected to the side of the base 1 facing the moving plate 3, and the second moving portion 43 has the freedom to slide along the axial direction of the screw 41 The second movable part 43 and the first movable part 42 are arranged opposite to each other in the thickness direction of the base 1; one end of the first rotating rod 44 is rotatably connected to the first movable part 42, and the other end is rotatably connected to the base 1; one end of the second rotating rod 45 is rotatably connected to the second movable part 43, and the other end is rotatably connected to the movable plate 3. The first rotating rod 44 is rotatably connected to the center of the second rotating rod 45. The first rotating rod 44 and the second rotating rod 45 both have the freedom to rotate around a first direction, and the first direction is perpendicular to the thickness direction of the base 1 and the axial direction of the screw 41, respectively.

[0052] Specifically, the first moving part 42 is driven by rotating the screw 41 to approach the connection between the second rotating rod 45 and the moving plate 3 along the axial direction of the screw 41. During the process, the first moving part 42 drives the first rotating rod 44 to rotate around the first direction, and the angle between the first rotating rod 44 and the first seat surface gradually increases; the first rotating rod 44 simultaneously drives the second rotating rod 45 to rotate around the first direction, and the angle between the second rotating rod 45 and the first seat surface also gradually increases. During the process, the second moving part 43 gradually approaches the connection between the first rotating rod 44 and the base 1; when the angle between the first rotating rod 44 and the second rotating rod 45 and the first seat surface gradually increases, the end of the first rotating rod 44 and the second rotating rod 45 close to the moving plate 3 will gradually move away from the base 1, thereby pushing the moving plate 3 to gradually approach the mounting plate 7.

[0053] It should be understood that the process of the lifting assembly 4 driving the movable plate 3 to descend is similar to the above content, and will not be described in detail here.

[0054] Furthermore, one end of the screw rod 41 can extend out of the movable plate 3 and be fixed with a turntable, and a handle is eccentrically provided on the turntable, so that the turntable and the screw rod 41 can be driven to rotate more conveniently by rotating the handle around the axial direction of the screw rod 41.

[0055] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A PCB test fixture for large-size multi-channel TR components, characterized in that: Used for testing a PCB board, one side of which has a plurality of connectors, the PCB board test fixture comprises: The base (1) has a first seat surface and a second seat surface which are arranged opposite to each other in the thickness direction of the base; A column (2) extending along the thickness direction of the base (1), the column (2) being arranged on a side of the first seat surface facing away from the second seat surface; A movable plate (3) is located on a side of the first seat surface facing away from the second seat surface, the movable plate (3) is sleeved on the outer periphery of the column (2) and is slidably connected to the column (2), and the movable plate (3) has the freedom to move along the thickness direction of the base (1); A lifting assembly (4) connected between the movable plate (3) and the base (1), wherein the lifting assembly (4) drives the movable plate (3) to move along the thickness direction of the base (1) in response to a driving force; A first connecting plate (5) is arranged on a side of the movable plate (3) away from the base (1), with a gap between the first connecting plate (5) and the movable plate (3), and the first connecting plate (5) is provided with a plurality of first through holes (51) extending in a thickness direction of the base (1), and the plurality of first through holes (51) correspond one-to-one to the plurality of connectors; a plurality of adapters (6), corresponding one-to-one to the plurality of first through holes (51) and passing through the corresponding first through holes (51), the adapters (6) being connected to the first connecting plate (5); The mounting plate (7) is fixed to one end of the column (2) away from the base (1); the mounting plate (7) is provided with a plurality of second through holes (71) extending in the thickness direction of the base (1); the PCB board is arranged on a side of the mounting plate (7) away from the first connecting plate (5); the plurality of connectors correspond to the plurality of second through holes (71) one by one and pass through the corresponding second through holes (71).

2. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 1, characterized in that: The PCB board test fixture also includes: a second connecting plate (8) fixed to a side of the first connecting plate (5) facing away from the movable plate (3), the second connecting plate (8) being provided with a plurality of third through holes (81) extending in a thickness direction of the base (1); The plurality of third through holes (81) correspond one-to-one to the plurality of adapters (6), and one end of each adapter (6) close to the second connecting plate (8) is located in the corresponding third through hole (81).

3. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 2, characterized in that: One end of the third through hole (81) away from the first connecting plate (5) has a chamfer.

4. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 1, characterized in that: The PCB board test fixture also includes: A cover plate (91) is arranged on a side of the mounting plate (7) facing away from the base (1); a plurality of screws, all extending in the thickness direction of the base (1), the screws passing through the cover plate (91) and being threadedly connected to the cover plate (91), and one end of the screws close to the mounting plate (7) being threadedly connected to the mounting plate (7); Wherein, a plurality of the screws are arranged at intervals on the periphery of the PCB board.

5. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 4, characterized in that: The PCB board test fixture also includes: A pressing plate (94) is arranged at the center of a side of the cover plate (91) facing away from the mounting plate (7); Wherein, the pressing plate (94) is threadedly connected to the cover plate (91) and the mounting plate (7) via the screws at corresponding positions.

6. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 4, characterized in that: The PCB board test fixture also includes: A plurality of handles (93) correspond one to one with the plurality of screws, and each handle (93) is fixed to an end of the screw away from the mounting plate (7).

7. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 4, characterized in that: A groove (72) is provided on the side of the mounting plate (7) facing away from the base (1), and the PCB board is located in the groove (72).

8. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 7, characterized in that: A fourth through hole (74) is provided on a side of the mounting plate (7) facing the base (1); the fourth through hole (74) extends along the thickness direction of the base (1) and is connected to the groove (72).

9. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 1, characterized in that: The PCB board is provided with a plurality of screw holes; The PCB board test fixture also includes: A plurality of positioning columns (73) correspond to the plurality of screw holes one by one and pass through the corresponding screw holes. The positioning columns (73) extend along the thickness direction of the base (1). The positioning columns (73) are fixed to the mounting plate (7), and the outer periphery of the positioning columns (73) fits with the screw holes.

10. The PCB board test fixture for large-size multi-channel TR components as claimed in claim 1, characterized in that: The lifting assembly (4) comprises: A screw rod (41) whose axial direction is perpendicular to the thickness direction of the base (1); the screw rod (41) is rotatably connected to a side of the movable plate (3) facing the base (1); and the screw rod (41) has the freedom to rotate around its own axial direction; A first moving part (42) is threadedly connected to the outer periphery of the screw rod (41); A second movable portion (43) is slidably connected to a side of the base (1) facing the movable plate (3), the second movable portion (43) having a degree of freedom to slide along the axial direction of the screw rod (41), and the second movable portion (43) and the first movable portion (42) are arranged opposite to each other in the thickness direction of the base (1); a first rotating rod (44), one end of which is rotatably connected to the first moving part (42), and the other end of which is rotatably connected to the base (1); A second rotating rod (45) has one end rotatably connected to the second moving portion (43) and the other end rotatably connected to the moving plate (3); the first rotating rod (44) is rotatably connected to the center of the second rotating rod (45); the first rotating rod (44) and the second rotating rod (45) both have the freedom to rotate around a first direction, and the first direction is respectively perpendicular to the thickness direction of the base (1) and the axial direction of the screw rod (41).

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