CN218782369U - A split-board test tool for a double-layer circuit board - Google Patents

Abstract

The utility model discloses a board-splitting test tool for a double-layer circuit board, which comprises a base, wherein the top of the base is provided with a detection piece, a plurality of card board devices and a plurality of connecting thimbles; the connecting thimbles are arranged in a front-back manner; the connecting thimbles are electrically connected with the detection piece; the upper plate or the lower plate of the double-layer circuit board is clamped at the top of the base through the clamping plate devices, and the clamped upper plate or the clamped lower plate of the double-layer circuit board is electrically connected with the connecting thimbles. Before upper plate and hypoplastron fixed connection, detect the upper plate or the hypoplastron of double-deck circuit board through the branch board test fixture of this application, detect whether there is bad point in the upper plate or the hypoplastron of double-deck circuit board to reduce the defective rate of whole double-deck circuit board, also can avoid dismantling again after upper plate and hypoplastron fixed connection, reduce the takedown time, improve double-deck circuit board's production efficiency.

Description

A split-board test tooling for a double-layer circuit board

technical field

The utility model relates to the technical field of circuit boards, in particular to a board-dividing test tool for a double-layer circuit board.

Background technique

With the rapid development of optical transmission and optical communication fields, higher requirements are put forward for the manufacture and installation of optical transmission and optical communication equipment, and many optical communication products are developing in the direction of miniaturization, high integration and multi-function. The service tray is also developing towards large capacity, modularization and multi-function. However, the service tray has size limitations in height and depth. Therefore, in order to allow the service tray to accommodate more devices, it is necessary to implement multi-board stacking in the structure, such as For some modules (such as extended pluggable optical modules), in order to realize the transmission of multiple signals in a limited space, two printed circuit boards (Printed Circuit Board, PCB for short) are overlapped. The double-layer PCB in the module is fixed by screws or other methods. For example, two printed circuit boards can be stacked on top of each other, and the flexible printed circuit (FPC for short) or connectors are connected to each other to transmit signals. There are two Two kinds of supporting structures are composed of a supporting structure located at the front end of the PCB and a supporting structure located at the rear end of the PCB. After the upper and lower covers are closed, screws are passed through the PCB and the cover to fix them.

In the prior art, the double-layer circuit board is tested after the upper board and the lower board are fixed, and when a defective point is detected on the double-layer circuit board, the technician needs to replace the double-layer circuit board Perform disassembly, repair or replacement of defective upper or lower boards, resulting in inefficient production of double-layer circuit boards.

Utility model content

Aiming at the problems raised by the background technology, the purpose of this utility model is to propose a board splitting test tool for a double-layer circuit board, which solves the problem of low production efficiency of the existing double-layer circuit board.

For this purpose, the utility model adopts the following technical solutions:

A board splitting test tool for a double-layer circuit board, including a base, the top of the base is provided with a detection piece, several clamping devices and several connecting thimbles; several connecting thimbles are arranged in front and back; The connecting thimble is electrically connected with the detection piece; the upper board or the lower board of the double-layer circuit board is clamped on the top of the base through several clamping devices, and the upper board of the double-layer circuit board is clamped Or the lower board is electrically connected to several connecting thimbles.

Specifically, the clamp device includes a connecting seat, a pressing piece and a clamping block; the top of the connecting seat is provided with a telescopic hole; the bottom of the connecting seat is provided with a hinged cavity, and a hinged seat is provided in the hinged cavity. One end of the pressing piece is provided with a hook portion, the other end of the pressing piece is bent and extended upwards, and the top of the pressed piece is bent and extended upwards to be provided with a pressing plate; one end of the clamping block is provided with a protrusion The clamping part, the other end of the clamping block is provided with a connecting spring; the side of the raised clamping part away from the connecting spring is provided with an inclined guide surface; the middle part of the clamping block is also provided with a stretching hole; the clamping block is set in the telescopic hole through the connecting spring; one end of the pressing part provided with the hook part is hinged to the hinge seat, and the hook part is clamped on the inside the drawing hole.

More preferably, the bottom of the connecting seat is provided with a mounting portion, and the mounting portion is provided with a first connection hole; the top surface of the base is provided with a second connection hole; the first connection holes are sequentially connected by a connecting piece and the second connection hole, so that the connection seat is detachably mounted on the top surface of the base.

Further, the top surface of the base is also provided with a positioning column.

Further, a protective cover is provided on the outside of the detection part; two window parts are provided on both sides of the protection cover; an input part and an output part are provided on the detection part; when the protective cover puts the When the detection element is wrapped, the input part and the output part respectively extend to the two window parts.

Further, several anti-skid pads are provided on the top of the base.

More preferably, the base includes a panel and a bottom box; the bottom box is provided with a cavity inside, and the cavity is provided with a connecting guide post; the panel is provided with a connection through hole connected with the connecting guide post; The panel is detachably installed on the top of the bottom box by sequentially connecting the connecting through hole and the connecting guide post through the connecting piece.

Compared with the prior art, one of the above technical solutions has the following beneficial effects:

Before the upper board and the lower board are fixedly connected, the upper board or the lower board of the double-layer circuit board is detected by the sub-board test tooling of the application, and whether there is a defective point on the upper board or the lower board of the double-layer circuit board, thereby reducing The defect rate of the overall double-layer circuit board can also avoid disassembly after the upper board and the lower board are fixedly connected, reduce the disassembly time, and improve the production efficiency of the double-layer circuit board.

Description of drawings

Fig. 1 is the structural representation of the sub-board testing frock of an embodiment of the present invention;

Fig. 2 is an exploded view of the structure of the panel test tooling of an embodiment of the present invention;

Fig. 3 is a partially enlarged view of dotted circle A in Fig. 2;

Fig. 4 is an exploded view of the structure of the connecting seat of an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a pressing member according to an embodiment of the present invention;

Fig. 6 is a structural schematic diagram of a clamping block according to an embodiment of the present invention;

Fig. 7 is a cross-sectional view of a pallet device according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In addition, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" and "third" may expressly or implicitly include one or more of such features.

In a preferred embodiment of the present application, as shown in Figures 1 to 7, a sub-board test tool for a double-layer circuit board includes a base 1, and the top of the base 1 is provided with a detection part 2 and several clamping boards Device 3 and several connecting thimbles 4; several connecting thimbles 4 are arranged in front and rear; several connecting thimbles 4 are electrically connected with the detection part 2; the upper or lower board of the double-layer circuit board passes through several Each clamping device 3 is clamped on the top of the base 1, and the upper board or the lower board of the clamped double-layer circuit board is electrically connected with several connecting thimbles 4 .

In this embodiment, before the upper board and the lower board of the double-layer circuit board are connected and fixed, the upper board and the lower board respectively pass the sub-board test tooling of the application to detect whether there are defective points, and then the double-layer circuit board The upper board and the lower board are connected and fixed. Specifically, in this embodiment, the test of the upper board of the double-layer circuit board is used for illustration: because the present embodiment is to test the upper board, the test piece 2 is a standard sample of the lower board; When testing, the test piece 2 is a standard sample piece on the upper plate. The standard sample piece can be understood as a qualified upper board or lower board that has no defective points and meets the technical requirements of the circuit board. Further, the detection part 2 is fixedly installed on the top surface of the base 1, the detection part 2 is electrically connected to an external tester, and then the detection part 2 is electrically connected to a plurality of connecting thimbles 4 through wires . And the upper plate is clamped on the top surface of the base 1 through a plurality of clamping devices 3, and the plate body of the upper plate is connected with the connecting thimble 4, so that the upper plate is connected with the detection part 2, so that it can detect all Whether there are defective points on the upper board, if there are defective points, repair and remove the defective points; if the upper board is qualified, it is sent to be connected with the qualified lower board. Therefore, before the upper board and the lower board are fixedly connected, the upper board or the lower board of the double-layer circuit board is detected by the sub-board test tooling of the present application, and whether there is a defective point on the upper board or the lower board of the double-layer circuit board, In this way, the defect rate of the overall double-layer circuit board can be reduced, and the disassembly after the upper board and the lower board are fixedly connected can be avoided, the disassembly time can be reduced, and the production efficiency of the double-layer circuit board can be improved.

Further, the top of the base 1 is also provided with a plurality of detection positioning parts 5 . As shown in Figures 1 to 3, in actual production, there are connection holes on the upper or lower board of the double-layer circuit board, and the upper or lower board of the double-layer circuit board is connected with the upper board or the lower board through the connection hole. The detection and positioning part 5 is limited and connected, so that the upper or lower board of the double-layer circuit board passes through the position-limiting action of the detection and positioning part 5 to ensure that the upper or lower board of the double-layer circuit board is connected to several The thimble 4 is accurately connected, thereby ensuring the connection between the upper or lower board of the double-layer circuit board and the detection part 2, and ensuring the detection accuracy of the sub-board detection tool.

Specifically, the clamp device 3 includes a connecting seat 31, a pressing member 32 and a clamping block 33; the top of the connecting seat 31 is provided with a telescopic hole 311; the bottom of the connecting seat 31 is provided with a hinged cavity 312, so that A hinge seat 313 is provided in the hinge cavity 312; a hook portion 321 is provided at one end of the pressing member 32, and the other end of the pressing member 32 is bent and extends upward, and the top of the pressing member 32 is bent and extended upward. Press plate 322; one end of the clamping block 33 is provided with a protruding clamping portion 331, and the other end of the clamping block 33 is provided with a connecting spring 332; the protruding clamping portion 331 is far away from the connecting spring 332 One side of the clamping block 33 is provided with an inclined guide surface 3310; the middle part of the clamping block 33 is also provided with a stretching hole 333; the clamping block 33 is set in the telescopic hole 311 through the connecting spring 332; the pressing One end of the member 32 provided with the hook portion 321 is hinged to the hinge seat 313 , and the hook portion 321 is snapped into the stretching hole 333 .

As shown in Figures 3 to 7, when the upper or lower board of the double-layer circuit board is clamped on the top surface of the base, the upper or lower board of the double-layer circuit board is removed from the clamping device. The upper part moves downward, and when the upper board or the lower board of the double-layer circuit board moves down, it will touch the raised clamping part 331 of the clamping block 33, and the clamping block 33 is received by the clamping block 33. The extrusion of the upper board or the lower board of the double-layer circuit board squeezes the connecting spring 332 to move into the telescopic hole 311 . After the upper board or the lower board of the double-layer circuit board passes through the raised clamping part 331 of the clamping block 33, under the action of the spring, the clamping block 33 moves out of the telescopic hole 311 , so that the raised clamping portion 331 abuts against the top surface of the upper board or the lower board of the double-layer circuit board, so that the upper board or the lower board of the double-layer circuit board is clamped on the the top surface of the base. More preferably, in order to reduce the friction between the upper or lower board of the double-layer circuit board and the raised engaging portion 331, an inclined guide surface 3310 is provided on the raised engaging portion 331, Therefore, the abrasion between the upper board or the lower board of the double-layer circuit board and the raised clamping portion 331 is reduced. Further, in order to facilitate the removal of the upper board or the lower board of the double-layer circuit board from below the raised clamping portion 331 , the clamping device is provided with a pressing member 32 . When it is necessary to take out the upper or lower board of the double-layer circuit board, the staff can press down the pressing plate 322, and the downward movement of the pressing plate 322 will drive the pressing member 32 to be equipped with the One end of the hook portion 321 turns over on the hinge seat 313 , thereby driving the hook portion 321 to turn over. The overturning of the hook portion 321 will drive the clamping block 33 to move into the telescopic hole 311, so that the telescopic protrusion clamping portion 331 no longer touches the top surface of the upper board of the double-layer circuit board. Or the top surface of the lower board, so that the upper board or the lower board of the double-layer circuit board can be taken out from the clamping device. Therefore, the clamping device of the present application facilitates the installation and disassembly of the upper or lower board of the double-layer circuit board, reduces the assembly time of the upper or lower board of the double-layer circuit board, and improves the upper and lower board of the double-layer circuit board. The detection efficiency of the plate or the lower plate.

More preferably, the bottom of the connecting seat 31 is provided with a mounting portion 314, and the mounting portion 314 is provided with a first connecting hole 3140; the top surface of the base 1 is provided with a second connecting hole; The first connection hole 3140 and the second connection hole make the connection seat 31 detachably mounted on the top surface of the base 1 . As shown in Figures 3 and 4, the purpose of such a setting is that when the connecting seat 31 is damaged, the connecting seat 31 can be easily and quickly disassembled from the base 1, and then a new connecting seat 31 can be quickly installed. seat 31, thereby reducing the replacement time of the connection seat 31 and improving the replacement efficiency of the connection seat 31.

Further, the top surface of the base 1 is also provided with a positioning column 6 . In this example, the clamping block 33 only limits the movement of the upper plate or the lower plate in the vertical direction, but when the base 1 is subjected to a large external force, the upper plate or the lower plate can move horizontally. direction, thereby affecting the connection between the upper board or the lower board and the connection thimble 4. Therefore, in the actual production process, the upper plate or the lower plate will be provided with a positioning hole, and the positioning hole will be sleeved on the positioning column 6, so as to prevent the upper plate or the lower plate from being placed on the top of the base 1. Move upwards to ensure the connection between the upper board or the lower board and the connecting thimble 4 to ensure accurate detection.

Further, a protective cover 7 is provided outside the detection part 2; two window parts 70 are provided on both sides of the protection cover 7; the detection part 2 is also provided with an input part 21 and an output part 22; when When the protective cover 7 wraps the detecting element 2 , the input part 21 and the output part 22 respectively extend to the two window parts 70 . As shown in Figures 1 and 2, because the test piece 2 is an upper plate standard sample or a lower plate standard sample, important devices such as circuits are also provided on the test piece 2, in order to avoid the upper plate standard sample The sample piece or the standard sample piece on the lower plate is directly exposed, so the protective cover 7 is provided outside the testing piece 2 to prevent the device from being corroded, thereby preventing the device from being damaged. Further, the detection part 2 is to be electrically connected with an external detector, in order to facilitate the connection between the detection part 2 and the external detector, two window parts 70 are provided on the protective cover 7 , so that the input part 21 and the output part 22 of the detection part 2 are respectively located on the window part 70, thereby facilitating the connection between the detection part 2 and an external tester.

Further, several anti-skid pads 8 are provided on the top of the base 1 . The sub-board detection tooling of the present application is generally placed on the table for use, so in order to avoid the base 1 from falling off the table when being collided, a plurality of anti-skid pads 8 are provided on the bottom of the base 1 in this embodiment , increasing the frictional force between the base 1 and the table, so as to prevent the frock from falling off the table easily, thereby avoiding damage to the frock.

More preferably, the base 1 includes a panel 12 and a bottom box 11; the inside of the bottom box 11 is provided with a cavity 110, and the cavity 110 is provided with a connecting guide post 111; the panel 12 is provided with a connection The connection through hole 120 connected with the guide post 111 ; the connection through hole 120 and the connection guide post 111 are sequentially connected through a connecting piece, so that the panel 12 can be detachably mounted on the top of the bottom box 11 .

In this example, as shown in FIG. 2, the detection member 2, the positioning column 6, the detection positioning member 5, the connecting thimble 4 and the clamping device 3 are all arranged on the top surface of the panel 12, and the anti-skid pad 8 It is arranged at the bottom of the bottom box 11. More preferably, because the detection part 2 is provided with a plurality of electric wires, and the electric wires of the detection part 2 are all arranged at the bottom of the panel 12, so in order to prevent the electric wires from being squeezed and to ensure the communication of the electric wires, in the The bottom box 11 is provided with a cavity 110 for conveniently accommodating the electric wires of the detection part 2 . Further, because the detection part 2 and the connecting thimble 4 will wear out during long-term use, and thus need to be replaced, so in this embodiment, the base 1 is set as a split type of the panel 12 and the bottom box 11, only need It only needs to replace the panel 12, thus saving the replacement cost. Furthermore, between the panel 12 and the bottom box 11, the panel 12 can be conveniently and quickly assembled on the bottom box 11 by passing through the connecting through hole 120 and the connecting guide post 111 in sequence through the connecting piece. Therefore, the assembly speed between the panel 12 and the base 1 is accelerated, and the replacement efficiency of the panel 12 is improved.

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (8)

1. A sub-board test tooling of a double-layer circuit board is characterized in that it comprises a base, and the top of the base is provided with a detection piece, several clamping devices and several connecting thimbles; Several connecting thimbles are arranged in front and back; Several of the connection thimbles are electrically connected to the detection piece; The upper or lower board of the double-layer circuit board is clamped on the top of the base through several clamping devices, and the upper or lower board of the clamped double-layer circuit board is electrically connected to the several connecting thimbles. connect. 2 . The sub-board testing tool for a double-layer circuit board according to claim 1 , wherein a plurality of detection positioning parts are further provided on the top of the base. 3 . 3. The sub-board testing tool for a double-layer circuit board according to claim 1, wherein the clamping device includes a connecting seat, a pressing piece and a clamping block; The top of the connecting seat is provided with telescopic holes; The bottom of the connecting seat is provided with a hinged cavity, and the hinged cavity is provided with a hinged seat; One end of the pressing piece is provided with a hook portion, the other end of the pressing piece is bent and extends upward, and the top of the pressing piece is bent and extended upwards to be provided with a pressing plate; One end of the clamping block is provided with a raised clamping part, and the other end of the clamping block is provided with a connecting spring; An inclined guide surface is provided on the side of the protruding clamping part away from the connecting spring; The middle part of the clamping block is also provided with a stretching hole; The clamping block is set in the telescopic hole through the connecting spring; One end of the pressing member provided with the hook portion is hinged to the hinge seat, and the hook portion is clamped in the stretching hole. 4. The sub-board testing tooling of a double-layer circuit board according to claim 3, wherein a mounting portion is provided at the bottom of the connecting seat, and the mounting portion is provided with a first connecting hole; The top surface of the base is provided with a second connection hole; The first connecting hole and the second connecting hole are sequentially connected by a connecting piece, so that the connecting seat is detachably installed on the top surface of the base. 5 . The tooling for sub-board testing of a double-layer circuit board according to claim 1 , wherein a positioning column is further provided on the top surface of the base. 5 . 6. The sub-board testing tooling of a double-layer circuit board according to claim 1, wherein a protective cover is also provided on the outside of the test piece; Two windows are arranged on both sides of the protective cover; The detection part is also provided with an input part and an output part; When the protective cover wraps the detecting element, the input part and the output part respectively extend to the two window parts. 7. The tooling for sub-board testing of a double-layer circuit board according to claim 1, wherein a plurality of anti-skid pads are provided on the top of the base. 8. The sub-board testing tool for a double-layer circuit board according to claim 1, wherein the base includes a panel and a bottom box; The inside of the bottom box is provided with a cavity, and a connecting guide post is provided in the cavity; The panel is provided with a connection through hole connected with the connection guide post; The panel is detachably installed on the top of the bottom box by sequentially connecting the connecting through hole and the connecting guide post through the connecting piece.

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