CN216595301U

CN216595301U - Circuit board impedance test auxiliary assembly and impedance test device

Info

Publication number: CN216595301U
Application number: CN202122856051.2U
Authority: CN
Inventors: 罗红梅; 孙贺彬; 赖祖成
Original assignee: Shenzhen Jinshenghui Technology Co ltd
Current assignee: Shenzhen Jinshenghui Technology Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-05-24
Anticipated expiration: 2031-11-19

Abstract

The utility model relates to the field of circuit board testing, in particular to an auxiliary component for circuit board impedance testing and an impedance testing device. The circuit board impedance test auxiliary assembly comprises a lifting assembly and a clamping auxiliary assembly, the lifting assembly drives the clamping auxiliary assembly to lift to realize connection of the first terminal and the second terminal, the circuit board is fixed through the clamping auxiliary assembly, and the electric connecting plate is detachably arranged on the fixing clamping block, so that the circuit board can be conveniently exchanged according to the specification of the circuit board, the circuit board impedance test device is convenient to use, the circuit board impedance test device can be used for conveniently and rapidly detecting the circuit board, and the impedance test efficiency is improved.

Description

Circuit board impedance test auxiliary assembly and impedance test device

Technical Field

The utility model relates to the field of circuit board testing, in particular to an auxiliary component for circuit board impedance testing and an impedance testing device.

Background

With the development of information technology, the circuit board is used more and more frequently, and before the circuit board is put into use, advanced impedance testing is needed, so that the conventional impedance testing auxiliary assembly and the impedance testing device are not convenient to use, and the impedance testing efficiency of the circuit board can be reduced.

Therefore, it is necessary to provide a novel auxiliary assembly for testing impedance of circuit board and an impedance testing apparatus to solve the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the circuit board impedance test auxiliary assembly and the impedance test device which are simple in structure and convenient to use.

The utility model provides a circuit board impedance test auxiliary assembly and an impedance test device, comprising: the lifting assembly comprises a lifting shell, a lifting motor, a lifting screw rod, a lifting block, a sliding block and a guide rod, wherein the lifting motor is installed inside the lifting shell, the lifting screw rod is installed on an output shaft of the lifting motor, the lifting block is arranged on the inner wall of the lifting shell in a cutting mode, the lifting screw rod is meshed with the lifting block, the guide rod is installed on the inner wall of the lifting shell, the sliding block is arranged on the inner wall of the lifting shell in a cutting mode, and the sliding block is in sliding cross connection with the guide rod; the centre gripping auxiliary assembly, sliding block fixed surface is connected with the centre gripping auxiliary assembly, through centre gripping auxiliary assembly fixed circuit board, starts elevator motor, and elevator motor drives the lift lead screw and rotates, and the lift lead screw drives the elevator and reciprocates, and the sliding block slides along the guide bar surface, adjusts the height of circuit board.

Preferably, the clamping auxiliary assembly comprises a clamping base, a fixed clamping block, a movable clamping block, an electric connecting plate, a stop block, a pull rod, a first terminal and an elastic piece;

the fixed clamping block and the stop block are fixedly arranged on the clamping base, the movable clamping block is arranged on the clamping base in a sliding mode, the pull rod penetrates through the stop block to form sliding connection, the pull rod is connected with the movable clamping block, the elastic piece is sleeved on the pull rod and located between the stop block and the movable clamping block, and the electric connecting plate is detachably arranged on one side, close to the movable clamping block, of the fixed clamping block and used for being electrically connected with a circuit board;

the lifting shell is provided with a second terminal, the first terminal is electrically connected with the electric connecting plate, the first terminal is arranged at the bottom of the clamping base, and the first terminal is connected with the second terminal under the driving of the lifting assembly.

The base is provided with a positioning groove, the fixed clamping block and the movable clamping block are arranged in the positioning groove, and the circuit board is in positioning contact with the inner wall surface of the positioning groove.

Furthermore, a flexible gasket opposite to the electric connecting plate is arranged on the movable clamping block.

Preferably, the pull rod is in an L-shaped structure so as to extend out of the positioning groove.

Preferably, a circuit board impedance testing device comprises an impedance tester and the circuit board impedance testing auxiliary assembly as described in any one of the above items; the impedance tester comprises a tester main body, a first probe and a second probe, wherein the first probe and the second probe are respectively connected with a corresponding second terminal on the lifting shell, and the first probe and the second probe are arranged on the surface of the tester main body; the fixing mechanism is used for positioning the impedance tester and is arranged at the bottom of the impedance tester; the connecting mechanism is used for fixing and separating the fixing mechanism and the connecting mechanism, the impedance tester is positioned and placed through the fixing mechanism, the tester main body and the first probe are placed in a detection hole in the surface of the circuit board, the tester main body is started to detect, the connecting mechanism is convenient for assembling the clamping auxiliary assembly and the fixing mechanism, and the detection efficiency is improved.

Preferably, fixed establishment includes set casing, fixed spout, fixed spring and fixed sliding block, the set casing is installed to impedance tester bottom, fixed spout has been seted up to set casing inner wall symmetry, fixed spout inner wall slidable mounting has fixed sliding block, fixed spout internally mounted has fixed spring, and fixed spring and fixed sliding block fixed connection place the impedance tester on the set casing surface, and fixed sliding block gets into fixed spout inner wall earlier, and fixed spring tightens up, places the impedance tester, and fixed spring resets and opens, resets fixed sliding block, and through the cooperation of fixed spring and fixed sliding block, it is fixed to make things convenient for the impedance tester location.

Preferably, coupling mechanism includes spread groove, cooperation groove, symmetry piece and connecting screw, the spread groove has been seted up to fixed establishment inner wall symmetry, the cooperation groove has been seted up to centre gripping auxiliary assembly inner wall symmetry, spread groove inner wall slidable mounting has the symmetry piece, and cooperation groove and symmetry piece structure cooperation, spread groove inner wall rotates and is connected with connecting screw, and symmetry piece and connecting screw meshing are connected, rotate connecting screw, and connecting screw drives the symmetry piece and keeps away from the spread groove inner wall, and the symmetry piece gets into the cooperation groove, fixes centre gripping auxiliary assembly and fixed establishment, rotates connecting screw once more, shifts out the symmetry piece from the cooperation inslot portion, gets into the spread groove inner wall, separately centre gripping auxiliary assembly and fixed establishment.

Preferably, fixed sliding block surface mounting has the rubber layer, four support columns are installed to tester main part bottom symmetry, guarantee fixed sliding block and impedance tester surface flexonics, reduce the wearing and tearing of impedance tester surface, guarantee that the impedance tester is fixed firm, carry out the stable stay to the impedance tester simultaneously, guarantee that the impedance tester can not produce the slope in the use, prevent that the impedance tester is direct with fixed shell surface contact, prolong the life of impedance tester.

Compared with the related art, the circuit board impedance test auxiliary assembly and the impedance test device provided by the utility model have the following beneficial effects:

1. the utility model provides an impedance test auxiliary assembly of a circuit board and an impedance test device, wherein the circuit board is fixed by the clamping auxiliary assembly, and an electric connecting plate is detachably arranged on a fixed clamping block by installing a lifting assembly, the clamping auxiliary assembly, a fixing mechanism and a connecting mechanism, wherein the lifting assembly drives the clamping auxiliary assembly to lift so as to realize the connection of a first terminal and a second terminal, the circuit board is conveniently exchanged according to the specification of the circuit board, an impedance tester can conveniently and rapidly detect the circuit board, and the impedance test efficiency is improved.

2. The utility model provides a circuit board impedance test auxiliary assembly and an impedance test device, wherein a rubber layer is arranged on the surface of a fixed sliding block, four support columns are symmetrically arranged at the bottom of a tester main body, the fixed sliding block is ensured to be in flexible contact with the surface of an impedance tester, the abrasion of the surface of the impedance tester is reduced, the impedance tester is ensured to be fixed firmly, meanwhile, the impedance tester is stably supported, the impedance tester is ensured not to incline in the use process, the impedance tester is prevented from being in direct contact with the surface of a fixed shell, and the service life of the impedance tester is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a circuit board impedance test auxiliary assembly and an impedance test apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of the lift assembly shown in FIG. 1;

FIG. 3 is a schematic view of the clamping assist assembly shown in FIG. 1;

FIG. 4 is a schematic structural view of the securing mechanism shown in FIG. 1;

FIG. 5 is a schematic structural view of the coupling mechanism shown in FIG. 1;

fig. 6 is a schematic structural diagram of the impedance tester shown in fig. 1.

Reference numbers in the figures: 1. a lifting assembly; 11. a lifting shell; 12. a lift motor; 13. a lifting screw rod; 14. A lifting block; 15. a slider; 16. a guide bar; 2. a clamping assist assembly; 21. a clamping base; 22. Fixing the clamping block; 23. a movable clamping block; 24. an electrical connection plate; 25. a stopper; 26. a pull rod; 27. positioning a groove; 28. a first terminal; 29. an elastic member; 3. a fixing mechanism; 31. a stationary case; 32. fixing the chute; 33. Fixing the spring; 34. fixing the sliding block; 4. a connecting mechanism; 41. connecting grooves; 42. a mating groove; 43. a symmetric block; 44. connecting a screw rod; 5. an impedance tester; 51. a tester main body; 52. a first probe; 53. a second probe; 6. a second terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

Referring to fig. 1 and fig. 2, an auxiliary component for testing impedance of a circuit board according to an embodiment of the present invention includes: the lifting assembly 1 comprises a lifting shell 11, a lifting motor 12, a lifting screw 13, a lifting block 14, a sliding block 15 and a guide rod 16, wherein the lifting motor 12 is installed inside the lifting shell 11, the lifting screw 13 is installed on an output shaft of the lifting motor 12, the lifting block 14 is installed on the inner wall of the lifting shell 11, the lifting screw 13 is meshed with the lifting block 14, the guide rod 16 is installed on the inner wall of the lifting shell 11, the sliding block 15 is installed on the inner wall of the lifting shell 11, and the sliding block 15 is in sliding connection with the guide rod 16; centre gripping auxiliary assembly 2, sliding block 15 fixed surface is connected with centre gripping auxiliary assembly 2, through the 2 fixed circuit boards of centre gripping auxiliary assembly, starts elevator motor 12, and elevator motor 12 drives lift lead screw 13 and rotates, and lift lead screw 13 drives elevator 14 and reciprocates, and sliding block 15 is along 16 surface sliding of guide bar, adjusts the height of circuit board.

Referring to fig. 3, the auxiliary clamping assembly 2 includes a clamping base 21, a fixed clamping block 22, a movable clamping block 23, an electrical connecting plate 24, a stop 25, a pull rod 26, a first terminal 28, and an elastic member 29;

the fixed clamping block 22 and the stop block 25 are fixedly arranged on the clamping base 21, the movable clamping block 23 is slidably arranged on the clamping base 21, the pull rod 26 penetrates through the stop block 25 to form a sliding connection, the pull rod 26 is connected with the movable clamping block 23, the elastic piece 29 is sleeved on the pull rod 26 and is positioned between the stop block 25 and the movable clamping block 23, and the electric connecting plate 24 is detachably arranged on one side of the fixed clamping block 22 close to the movable clamping block 23 and is used for being electrically connected with a circuit board;

the lifting shell 11 is provided with a second terminal 6, the first terminal 28 is electrically connected with the electric connecting plate 24, the first terminal 28 is arranged at the bottom of the clamping base 21, and the first terminal 28 is connected with the second terminal 6 under the driving of the lifting component 1.

It is understood that one fixed block 22 and one movable block 23 are provided in one set, and a plurality of sets of fixed blocks 22 and movable blocks 23 may be provided on the clamping base 21.

According to the interface specification on the circuit board, set up the electric connecting plate 24 that corresponds to on fixed clamp splice 22, during the use, overcome the elasticity of elastic component 29 and thereby pull open pull rod 26, place the circuit board location between fixed clamp splice 22 and activity clamp splice 23, counterpoint the interface on the circuit board and the interface on the electric connecting plate 24 simultaneously, send pull rod 26 open, can realize the fixed centre gripping to the circuit board, realize the connection of interface simultaneously.

The base 21 is provided with a positioning groove 27, the fixed clamping block 22 and the movable clamping block 23 are arranged in the positioning groove 27, and the circuit board is in positioning contact with the inner wall surface of the positioning groove 27.

Further, a flexible gasket opposite to the electric connecting plate 24 is arranged on the movable clamping block 23.

The pull rod 26 in this embodiment is in an L-shaped structure and extends out of the positioning slot 27.

Referring to fig. 1 and fig. 6, a circuit board impedance testing device includes an impedance tester 5, a fixing mechanism 3, a connecting mechanism 4, and the circuit board impedance testing auxiliary assembly as described above; the impedance tester 5, the impedance tester 5 includes tester main part 51, first probe 52 and second probe 53, tester main part 51 surface mounting has first probe 52 and second probe 53, first probe 52 with the second probe 53 respectively with the second terminal 6 that corresponds on the lift shell 11 is connected to the realization is connected with the circuit board, and then can test after connecting through the electricity.

And the bottom of the impedance tester 5 is provided with a fixing mechanism 3 for positioning the impedance tester 5.

Fixing and separating through coupling mechanism 4 between lifting component 1 and the fixed establishment 3, through fixed establishment 3, placing impedance tester 5 location, place in circuit board surface detection hole through tester main part 51 and first probe 52, start tester main part 51 and detect, coupling mechanism 4 makes things convenient for lifting component 1 and fixed establishment 3 to assemble, has improved detection efficiency.

Referring to fig. 4, the fixing mechanism 3 includes a fixing shell 31, a fixing chute 32, a fixing spring 33 and a fixing sliding block 34, the fixing shell 31 is installed at the bottom of the impedance tester 5, the fixing chutes 32 are symmetrically formed in the inner wall of the fixing shell 31, the fixing sliding block 34 is installed on the inner wall of the fixing chute 32 in a sliding manner, the fixing spring 33 is installed inside the fixing chute 32, the fixing spring 33 is fixedly connected with the fixing sliding block 34, the impedance tester 5 is placed on the surface of the fixing shell 31, the fixing sliding block 34 firstly enters the inner wall of the fixing chute 32, the fixing spring 33 is tightened, the impedance tester 5 is placed, the fixing spring 33 is reset and opened, the fixing sliding block 34 is reset, and the impedance tester 5 is conveniently positioned and fixed through the cooperation of the fixing spring 33 and the fixing sliding block 34.

Referring to fig. 5, the connecting mechanism 4 includes a connecting groove 41, a matching groove 42, a symmetrical block 43 and a connecting screw rod 44, the connecting groove 41 is symmetrically formed in the inner wall of the fixing mechanism 3, the matching groove 42 is symmetrically formed in the inner wall of the lifting assembly 1, the symmetrical block 43 is slidably mounted on the inner wall of the connecting groove 41, the matching groove 42 is structurally matched with the symmetrical block 43, the connecting screw rod 44 is rotatably connected to the inner wall of the connecting groove 41, the symmetrical block 43 is meshed with the connecting screw rod 44, the connecting screw rod 44 is rotated, the connecting screw rod 44 drives the symmetrical block 43 to be away from the inner wall of the connecting groove 41, the symmetrical block 43 enters the matching groove 42, the lifting assembly 1 and the fixing mechanism 3 are fixed, the connecting screw rod 44 is rotated again, the symmetrical block 43 is moved out from the matching groove 42 and enters the inner wall of the connecting groove 41, and the lifting assembly 1 and the fixing mechanism 3 are separated.

Referring to fig. 4 and 5, the fixed sliding block 34 is provided with a rubber layer on the surface, and the bottom of the tester main body 51 is symmetrically provided with four support columns, so that the fixed sliding block 34 is ensured to be in flexible contact with the surface of the impedance tester 5, the abrasion on the surface of the impedance tester 5 is reduced, the impedance tester 5 is ensured to be fixed firmly, meanwhile, the impedance tester 5 is stably supported, the impedance tester 5 is ensured not to be inclined in the using process, the impedance tester 5 is prevented from being in direct surface contact with the fixed shell 31, and the service life of the impedance tester 5 is prolonged.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A circuit board impedance testing aid assembly, comprising:

the lifting assembly (1) comprises a lifting shell (11), a lifting motor (12), a lifting screw rod (13), a lifting block (14), a sliding block (15) and a guide rod (16), wherein the lifting motor (12) is installed inside the lifting shell (11), the lifting screw rod (13) is installed on an output shaft of the lifting motor (12), the lifting block (14) is installed on the inner wall of the lifting shell (11), the lifting screw rod (13) is meshed with the lifting block (14) and connected with the lifting block (14), the guide rod (16) is installed on the inner wall of the lifting shell (11), the sliding block (15) is installed on the inner wall of the lifting shell (11), and the sliding block (15) is in sliding connection with the guide rod (16);

the clamping auxiliary assembly (2), sliding block (15) fixed surface is connected with clamping auxiliary assembly (2).

2. The auxiliary component for testing impedance of circuit board according to claim 1, wherein the auxiliary component for clamping (2) comprises a clamping base (21), a fixed clamping block (22), a movable clamping block (23), an electric connecting plate (24), a stop block (25), a pull rod (26), a first terminal (28) and an elastic piece (29);

the fixed clamping block (22) and the stop block (25) are fixedly arranged on the clamping base (21), the movable clamping block (23) is arranged on the clamping base (21) in a sliding mode, the pull rod (26) penetrates through the stop block (25) to form sliding connection, the pull rod (26) is connected with the movable clamping block (23), the elastic piece (29) is sleeved on the pull rod (26) and located between the stop block (25) and the movable clamping block (23), and the electric connecting plate (24) is detachably arranged on one side, close to the movable clamping block, of the fixed clamping block (22) and used for being electrically connected with a circuit board;

the lifting shell (11) is provided with a second terminal (6), the first terminal (28) is electrically connected with the electric connecting plate (24), the first terminal (28) is arranged at the bottom of the clamping base (21), and the first terminal (28) is connected with the second terminal (6) under the driving of the lifting assembly (1).

3. The auxiliary component for testing the impedance of the circuit board according to claim 2, wherein a positioning slot (27) is arranged on the base (21), the fixed clamping block (22) and the movable clamping block (23) are arranged in the positioning slot (27), and the circuit board is in positioning contact with the inner wall surface of the positioning slot (27).

4. The auxiliary component for testing impedance of circuit board according to claim 3, wherein the movable clamping block (23) is provided with a flexible gasket opposite to the electric connecting plate (24).

5. The auxiliary component for testing impedance of circuit board according to claim 3, wherein the pull rod (26) is in L-shaped structure to extend out of the positioning slot (27).

6. A circuit board impedance testing device, characterized by comprising an impedance tester (5) and the circuit board impedance testing auxiliary assembly of any one of claims 1-5;

the impedance tester (5) comprises a tester main body (51), a first probe (52) and a second probe (53), wherein the first probe (52) and the second probe (53) are mounted on the surface of the tester main body (51), and the first probe (52) and the second probe (53) are respectively connected with corresponding second terminals (6) on the lifting shell (11);

the fixing mechanism (3) is used for positioning the impedance tester (5) and is arranged at the bottom of the impedance tester (5);

and the clamping auxiliary assembly (2) and the fixing mechanism (3) are internally provided with a connecting mechanism (4) for fixing and separating the fixing mechanism (3) and the connecting mechanism (4).

7. The circuit board impedance testing device of claim 6, wherein the fixing mechanism (3) comprises a fixing shell (31), a fixing sliding groove (32), a fixing spring (33) and a fixing sliding block (34), the fixing shell (31) is installed at the bottom of the impedance tester (5), the fixing sliding groove (32) is symmetrically formed in the inner wall of the fixing shell (31), the fixing sliding block (34) is installed on the inner wall of the fixing sliding groove (32) in a sliding mode, the fixing spring (33) is installed inside the fixing sliding groove (32), and the fixing spring (33) is fixedly connected with the fixing sliding block (34).

8. The circuit board impedance testing device of claim 7, wherein the fixed sliding block (34) is surface-mounted with a rubber layer.

9. The circuit board impedance testing device of claim 6, wherein the connecting mechanism (4) comprises a connecting groove (41), a matching groove (42), a symmetrical block (43) and a connecting screw rod (44), the connecting groove (41) is symmetrically formed in the inner wall of the fixing mechanism (3), the matching groove (42) is symmetrically formed in the inner wall of the clamping auxiliary assembly (2), the symmetrical block (43) is slidably mounted on the inner wall of the connecting groove (41), the matching groove (42) is structurally matched with the symmetrical block (43), the connecting screw rod (44) is rotatably connected to the inner wall of the connecting groove (41), and the symmetrical block (43) is meshed with the connecting screw rod (44).

10. The impedance testing device of the circuit board according to claim 6, wherein four supporting columns are symmetrically installed at the bottom of the tester main body (51).