CN218036170U - Anti-bending detection tool for circuit board processing - Google Patents

Abstract

The utility model discloses an anti-bending detection tool for circuit board processing, which comprises a U-shaped base and a fixed block fixedly installed on the upper end of the U-shaped base; and also includes: a scale line engraved on the longitudinal upper end wall of the U-shaped base , pull the pull rod down to move, the pull rod drives the connecting rod to move in the chute at the corresponding position, the connecting rod will gradually slide downwards, the two support rods drive the two L-shaped rods at the corresponding positions to move, and the L-shaped rod moves along the When the surface of the circuit board is continuously pressed and moved, when the circuit board exceeds the critical value of its own bending resistance, it will break and complete the bending resistance test. The anti-bending detection tool for circuit board processing can intuitively judge the bending position of the circuit board according to the position of the scale line on one side of the indicator rod located on one side of the groove, and at the same time according to the position of the extruded panel and the clamped circuit board The contact clamping area can detect the bending resistance of different positions of the circuit board.

Description

A bending resistance detection tool for circuit board processing

technical field

The utility model relates to the field of circuit board processing, in particular to a bending resistance detection tool for circuit board processing.

Background technique

The names of the circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin Thin circuit boards, printed circuit boards, etc. The circuit board makes the circuit miniaturized and intuitive, and plays an important role in mass production of fixed circuits and optimizing the layout of electrical appliances.

For example, a flexible printed circuit board bending strength testing device whose publication number is CN207081622U includes a device body, a first push rod motor is fixedly installed on the top of the device body, a through hole is opened on the top of the device body, and the output of the first push rod motor The shaft extends through the through hole to the inside of the device body and is fixedly connected with a fixing frame. The bottom of the fixing frame is fixedly connected with a mounting plate. One side of the mounting plate is fixedly installed with a horizontally arranged pointer. Instrument, the test instrument is located at the end of the pointer away from the mounting plate, the top of the mounting plate is fixedly installed with a second push rod motor, the second push rod motor is located directly below the fixing frame, and the output shaft of the second push rod motor is fixed A vertically arranged rack is attached. The utility model provides stable fixation for circuit boards during testing, is used for circuit boards of different thicknesses, and can easily read test strength data. The utility model has simple structure, reasonable design, and is easy to popularize.

However, although this patent can carry out continuous and stable testing of the circuit board, it is difficult to perform bending resistance detection on different parts of the circuit board in this detection method, and at the same time it is difficult to intuitively see the position and length of the circuit board being bent.

Therefore, we propose a bending resistance detection tool for circuit board processing, in order to solve the problems raised above.

Utility model content

The purpose of this utility model is to provide a kind of anti-bending detection tool for circuit board processing, to solve the problem that although the circuit board can be continuously and stably tested in the above-mentioned background technology, it is difficult to carry out different parts of the circuit board in this detection method. Bending detection, and it is difficult to visually see the position and length of the circuit board being bent.

In order to achieve the above purpose, the utility model provides the following technical solutions: a bending resistance detection tool for circuit board processing, including a U-shaped base and a fixed block fixedly installed on the upper end of the U-shaped base;

Also includes:

The scale line is engraved on the longitudinal upper end wall of the U-shaped base, grooves are opened on the two longitudinal upper end walls of the U-shaped base, and the scale line is arranged on one side of the groove. The U-shaped base is also provided with a fixing assembly, and the U-shaped base is also provided with a stretch-bending assembly for stretch-bending detection of the circuit board. The longitudinal side walls of the U-shaped base are symmetrically provided with slide grooves.

By adopting the above-mentioned technical scheme, with the cooperation of the scale line, the chute and the bending assembly, it is possible to conveniently perform bending resistance detection on different positions of the circuit board, and it is possible to accurately see the bending position of the circuit board.

Preferably, the fixing assembly includes a first threaded column symmetrically threaded on the longitudinal side wall of the U-shaped base, one end of the first threaded column is rotatably connected to a placement plate, and a placement groove is opened on the placement plate, The upper end of the placing plate is threadedly connected with a second threaded rod, and the lower end of the second threaded rod is rotatably connected with an extrusion panel.

By adopting the above technical solution, under the cooperation of the first threaded column, the placement plate and the extrusion panel, the circuit board can be stably clamped.

Preferably, a slider is fixedly installed on the lower end of the placement plate, and a restriction groove is opened on the upper end of the fixed block, and the slider is slidably arranged in the restriction groove.

By adopting the above-mentioned technical solution, through the setting of the slide block, the placing board can slide stably, and at the same time, it can be prevented from shaking when the circuit board is placed.

Preferably, the tension-bending assembly includes a connecting rod slidably arranged in the corresponding chute, the connecting rod is provided with a restricting opening, and the upper end of the connecting rod is symmetrically fixed with a support rod, and the two grooves Both of them are slidably connected with indicating rods, and the two supporting rods are provided with connecting components for limiting the position of the indicating rods, and the middle part of the upper end of the connecting rods is fixedly equipped with a pull rod.

By adopting the above technical scheme, under the cooperation of the chute, the connecting rod, the restricting opening, the support rod and the indicating rod, the connecting rod slides in the chute through the setting of the chute, and the bending resistance detection of the circuit board can be carried out.

Preferably, the connection assembly includes an L-shaped rod slidably arranged on the support rod, and a mounting groove is opened on the support rod, a spring is fixedly connected to the mounting groove, and one end of the spring is fixedly connected to the L-shaped rod , one end of the L-shaped rod is fixedly connected with the indicating rod.

By adopting the above technical solution, through the setting of the spring, the indicating rod can change with the change of the position of the supporting rod.

Preferably, the bottom walls of the two chutes are provided with connection grooves, the lower ends of the connection rods are symmetrically fixed with connection blocks, and balls are movably arranged on the two connection blocks. The blocks are all slidably arranged in the connecting grooves at the corresponding positions, and the balls are in contact with the connecting grooves.

By adopting the above technical solution, under the cooperation of the connecting block and the ball, the connecting rod can be easily slid in the slide groove.

Compared with the prior art, the beneficial effect of the utility model is that the bending position of the circuit board can be judged intuitively, and at the same time, according to the contact and clamping area between the extruded panel and the clamped circuit board, the bending position of the circuit board at different positions can be determined. The degree of bending resistance is tested, and the specific content is as follows;

1. Pass one end of the circuit board through the restricting opening, connect the pull rod to the power source, and pull the pull rod obliquely downward to move, and the pull rod drives the connecting rod to move in the chute at the corresponding position. Because the chute is inclined, the connecting rod will gradually tilt Slide down, and at the same time, the connecting rod drives the two support rods to move downward together. The two support rods drive the two L-shaped rods at corresponding positions to move, and the L-shaped rod drives the indicator rod to slide in the groove at the corresponding position. The L-shaped When the rod is continuously pressed down and moved along the surface of the circuit board, when the circuit board exceeds the critical value of its own bending resistance, it will break, and at the same time the indicating rod will stop at a certain position in the groove, According to the position of the scale line where the indicator rod is located on one side of one of the grooves, the bending position of the circuit board can be judged intuitively, and at the same time, according to the contact and clamping area between the extruded panel and the clamped circuit board, different positions of the circuit board can be determined The degree of bending resistance is tested, and the operation is simple and easy to use.

2. The operator can turn the handle on the first threaded column on both sides by the length of the circuit board, the handle drives the first threaded column to rotate, and the first threaded column pushes the placement plate to slide stably in the limiting groove. When two When the placement board slides to a suitable position, place one end of the circuit board in the placement slot, then turn the handle corresponding to the second threaded rod, the handle drives the second threaded rod to rotate, and the second threaded rod drives the extrusion panel at the corresponding position to approach The circuit board is moved until it is fixed, achieving the effect that the circuit board can be fixed according to the thickness and length of the circuit board, which can ensure that the circuit board can be tested stably.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the utility model stretch bending assembly;

Fig. 3 is a schematic plan view of the joint between the support rod and the L-shaped rod of the utility model;

Fig. 4 is a structural schematic diagram of the utility model fixed assembly;

Fig. 5 is a schematic plan view of the connection between the second threaded rod and the extruded panel of the present invention.

In the figure: 1. U-shaped base; 2. Fixed block; 3. Groove; 4. Graduation line; 5. Chute; 73, support rod; 74, indicator rod; 75, connection assembly; 751, L-shaped rod; 752, installation groove; 753, spring; 76, pull rod; 77, connection block; 78, ball; 8, fixed assembly; 81, The first threaded column; 82, placing plate; 83, the second threaded rod; 84, placing groove; 85, extrusion panel; 86, slide block; 9, limiting groove;

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a bending resistance detection tool for circuit board processing, including a U-shaped base 1 and a fixed block 2 fixedly installed on the upper end of the U-shaped base 1; also includes: The scale line 4 is engraved on the longitudinal upper end wall of the U-shaped base 1, and grooves 3 are provided on the two longitudinal upper end walls of the U-shaped base 1, and the scale line 4 is arranged on one side of one of the grooves 3. U The U-shaped base 1 is also provided with a fixing assembly 8 , and the U-shaped base 1 is also provided with a stretch-bending assembly 7 for stretch-bending detection of the circuit board. The longitudinal side walls of the U-shaped base 1 are symmetrically provided with chute 5 . With the cooperation of the scale line 4, the chute 5 and the stretch bending assembly 7, it is possible to conveniently perform bending resistance detection on different positions of the circuit board, and the bending position of the circuit board can be accurately seen.

The stretch-bending assembly 7 includes a connecting rod 71 slidably arranged in the corresponding chute 5. The connecting rod 71 is provided with a restricting opening 72. The upper end of the connecting rod 71 is symmetrically fixed with a support rod 73, and the two grooves 3 are slidably connected. There is an indicator rod 74 , and the two support rods 73 are provided with a connection assembly 75 for limiting the position of the indicator rod 74 , and a tie rod 76 is fixedly installed in the middle part of the upper end of the connecting rod 71 . Under the cooperation of the chute 5, the connecting rod 71, the restricting opening 72, the supporting rod 73 and the indicating rod 74, through the setting of the chute 5, the connecting rod 71 slides in the chute 5, and the circuit board can be tested against bending.

The connection assembly 75 includes an L-shaped rod 751 slidably arranged on the support rod 73. The support rod 73 is provided with a mounting groove 752, and a spring 753 is fixedly connected to the mounting groove 752. One end of the spring 753 is fixedly connected with the L-shaped rod 751, L One end of the shaped rod 751 is fixedly connected with the indicating rod 74 . Through the setting of the spring 753 , the indicator rod 74 can change with the change of the position of the support rod 73 .

The bottom walls of the two chutes 5 are provided with connecting grooves 6, and the lower ends of the connecting rods 71 are symmetrically fixed with connecting blocks 77, and balls 78 are movable on the two connecting blocks 77, and the two connecting blocks 77 are all slidably set. The ball 78 is in contact with the connecting groove 6 in the corresponding position. Under the cooperation of the connecting block 77 and the ball 78, the connecting rod 71 can be ensured to slide easily in the chute 5.

Referring to Figs. 4-5, the fixing assembly 8 includes a first threaded post 81 that is symmetrically threaded on the longitudinal side wall of the U-shaped base 1, and one end of the first threaded post 81 is rotatably connected with a placement plate 82, on which a There is a placement groove 84 , the upper end of the placement plate 82 is threadedly connected with a second threaded rod 83 , and the lower end of the second threaded rod 83 is rotatably connected with an extrusion panel 85 . With the cooperation of the first threaded column 81 , the placement plate 82 and the extrusion panel 85 , the circuit board can be stably clamped.

A sliding block 86 is fixedly installed on the lower end of the placing plate 82 , and a limiting groove 9 is opened on the upper end of the fixing block 2 , and the sliding block 86 is slidably arranged in the limiting groove 9 . Through the setting of the slider 86, the placing plate 82 can slide stably, and also prevent it from shaking when placing the circuit board.

Working principle: First, the operator can turn the handle on the first threaded column 81 on both sides by the length of the circuit board, the handle drives the first threaded column 81 to rotate, and the first threaded column 81 pushes the placement plate 82 in the limiting groove 9 Carry out stable sliding, when the two placement plates 82 slide to a suitable position, place one end of the circuit board in the placement groove 84, then turn the handle corresponding to the second threaded rod 83, and the handle drives the second threaded rod 83 to rotate, The second threaded rod 83 drives the extrusion panel 85 at the corresponding position to move close to the circuit board until it is fixed, achieving the effect that the circuit board can be fixed according to the thickness and length of the circuit board, which can ensure that the circuit board can be tested stably .

Next, pass one end of the circuit board through the restricting opening 72, connect the pull rod 76 with a power source, and pull the pull rod 76 obliquely downward to move, and the pull rod 76 drives the connecting rod 71 to move in the chute 5 at the corresponding position, because the chute 5 is inclined setting, the connecting rod 71 will gradually tilt and slide downward, and at the same time the connecting rod 71 drives the two supporting rods 73 to move downward together, and the two supporting rods 73 drive the two corresponding L-shaped rods 751 to move, and the L-shaped rod 751 drives the indicator The rod 74 slides in the groove 3 at the corresponding position. When the L-shaped rod 751 is continuously pressed down and moves along the surface of the circuit board, when the circuit board exceeds the critical value of its own bending resistance, it will break. At the same time, the indicator rod 74 will stop at a certain position in the groove 3. According to the position of the indicator rod 74 located on the scale line 4 on one side of the groove 3, the position where the circuit board is bent can be visually judged. At the same time, according to the contact and clamping area between the extrusion panel 85 and the clamping circuit board, the degree of bending resistance at different positions of the circuit board can be detected.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims (6)

1. A bending resistance detection tool for circuit board processing, comprising a U-shaped base (1) and a fixed block (2) fixedly installed on the upper end of the U-shaped base (1); It is characterized in that it also includes: The scale line (4) is engraved on the longitudinal upper end wall of the U-shaped base (1), and grooves (3) are provided on the two longitudinal upper end walls of the U-shaped base (1), and the scale line ( 4) Set on one side of one of the grooves (3), the U-shaped base (1) is also provided with a fixing component (8), and the U-shaped base (1) is also provided with a circuit A stretch-bending component (7) for performing stretch-bend detection on a plate, slide grooves (5) are symmetrically opened on the longitudinal side walls of the U-shaped base (1). 2. The anti-bending detection tool for circuit board processing according to claim 1, characterized in that: the fixing assembly (8) includes a symmetrical thread arranged on the longitudinal side wall of the U-shaped base (1). A threaded column (81), one end of the first threaded column (81) is rotatably connected with a placement plate (82), and a placement groove (84) is provided on the placement plate (82), and the placement plate (82) The upper end of the second threaded rod (83) is threadedly connected with an extrusion panel (85) at the lower end of the second threaded rod (83). 3. The anti-bending detection tool for circuit board processing according to claim 2, characterized in that: a slider (86) is fixedly installed on the lower end of the placement plate (82), and the fixed block (2) A limiting groove (9) is opened at the upper end, and the slider (86) is slidably arranged in the limiting groove (9). 4. The anti-bending detection tool for circuit board processing according to claim 3, characterized in that: the stretch bending assembly (7) includes a connecting rod (71) slidably arranged in the corresponding chute (5) , the connecting rod (71) is provided with a restricting opening (72), the upper end of the connecting rod (71) is symmetrically fixed with a support rod (73), and the two grooves (3) are slidingly connected with Indicating rods (74), the two support rods (73) are provided with a connecting assembly (75) for limiting the indicating rods (74), and the middle part of the upper end of the connecting rods (71) is fixedly installed with Tie rod (76). 5. The anti-bending detection tool for circuit board processing according to claim 4, characterized in that: the connection assembly (75) includes an L-shaped rod (751) slidably arranged on the support rod (73), An installation groove (752) is provided on the support rod (73), a spring (753) is fixedly connected to the installation groove (752), and one end of the spring (753) is fixedly connected to the L-shaped rod (751), One end of the L-shaped rod (751) is fixedly connected with the indicating rod (74). 6. The anti-bending detection tool for circuit board processing according to claim 5, characterized in that: connecting grooves (6) are provided on the bottom walls of the two chutes (5), and the connecting grooves (6) The lower end of the rod (71) is symmetrically fixed with connecting blocks (77), and balls (78) are movably arranged on the two connecting blocks (77), and the two connecting blocks (77) are all slidably arranged in corresponding positions In the connection groove (6), and the ball (78) is in contact with the connection groove (6).

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