Circuit board bending test equipment

Abstract

The utility model discloses a circuit board bending test device which comprises a detection box, a detection cavity is arranged in the detection box, the front side face and the rear side face of the detection box are respectively provided with a first air cylinder, and first piston rods extending out of the two first air cylinders move oppositely and extend into the detection cavity. Mounting plates are mounted at the tail ends of the first piston rods, and clamping assemblies used for clamping a circuit board are arranged on the side faces, close to each other, of the two mounting plates correspondingly; according to the utility model, the deformation of the circuit board is not limited in the test process of the circuit board, and the test accuracy is effectively improved; the number of the pressing columns is two, the positions of the pressing columns can be adjusted up and down, the testing stability is improved, and the device can be used for testing circuit boards of various specifications. According to the utility model, the circuit board can directly fall onto the receiving disc after detection is completed, so that the processing is convenient, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board bending test device. Background Art

[0002] During the production and use of circuit board products, the circuit boards will be subjected to different degrees of twists and bends due to vibrations, mechanical collisions and other reasons. If the circuit boards cannot withstand these twists and bends during actual use, it may cause the circuit boards to fail, which in turn causes product quality problems. Therefore, it is necessary to perform a press test on the circuit boards.

[0003] Application No. 202120066984.9 discloses a bending force detection device for a circuit board, in which two clamps distributed upper and lower are used to clamp the circuit board to facilitate a bending resistance test. However, there are some problems in the device. The circuit board will deform when it is bent, and the clamping block is fixed, which will affect the normal deformation of the circuit board when it is under pressure and will affect the test results. In addition, the clamps arranged upper and lower require manual clamping and unloading by staff, which is cumbersome and needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a circuit board bending test device to solve the problem that the test accuracy of the existing circuit board clamping equipment needs to be improved.

[0005] The utility model provides the following technical solution: a circuit board bending test device, comprising a detection box, a detection cavity is provided in the detection box, a No. 1 cylinder is respectively provided on the front and rear sides of the detection box, two No. 1 piston rods extending from the No. 1 cylinders move in opposite directions and extend into the detection cavity, a mounting plate is installed at the end of the No. 1 piston rod, and a clamping assembly for clamping the circuit board is respectively provided on the sides of the two mounting plates close to each other;

[0006] The clamping assembly comprises a hinged plate which is hinged to the side of the mounting plate and can swing left and right, and a clamping head for clamping the circuit board is provided on the side of the hinged plate;

[0007] A No. 2 cylinder is provided on the right side of the detection box, and a pressure plate is installed at the end of the No. 2 piston rod extending from the No. 2 cylinder through a force measuring mechanism, and a pressing column is provided on the left side of the pressure plate.

[0008] Preferably, a No. 1 sleeve is provided on the side surface of the mounting plate, and the No. 1 piston rod is slidably connected in the No. 1 sleeve.

[0009] Preferably, the force measuring mechanism includes a No. 2 sleeve fixed to the right side of the pressure plate, the No. 2 piston rod extends into the No. 2 sleeve, and a pressure sensor attached to the end of the No. 2 piston rod is provided in the No. 2 sleeve.

[0010] Preferably, there are two pressure columns distributed up and down, and the pressure columns can slide up and down. A vertically arranged threaded shaft is rotatably connected to the left side surface of the pressure plate. Two opposite sections of threads are machined in the threaded shaft, and each section of the thread is connected to one of the pressure columns.

[0011] Preferably, a rotary handle is provided at the upper end of the threaded shaft;

[0012] A through hole is arranged in the upper side surface of the detection cavity, the through hole and the rotary handle are located at the same front-back position, and a rubber plate for covering the through hole is arranged on the upper side surface of the detection cavity.

[0013] Preferably, the chuck includes a left clamping plate fixed on the side of the hinged plate and a sliding plate slidably connected to the side of the hinged plate left and right, a right clamping plate is fixed on the front side of the sliding plate, the sliding plate extends to the left side of the left clamping plate and is connected to the left clamping plate through a spring, and an electromagnet for attracting the right clamping plate is also provided in the left clamping plate.

[0014] Preferably, the detection box is supported by vertical poles, the detection cavity opens downward, and a receiving tray is provided on the lower side of the detection box.

[0015] Preferably, the detection cavity opens to the left, and a baffle is hinged on the left side of the detection box. The detection box is also provided with a permanent magnet for attracting the baffle and making it stick to the detection box.

[0016] The utility model provides a circuit board bending test device, which has the following beneficial effects:

[0017] The utility model can perform a press bending test on a circuit board, and will not restrict the deformation of the circuit board during the test, thereby effectively improving the test accuracy;

[0018] The utility model has two pressing posts, and the positions can be adjusted up and down, which improves the test stability and can be used for testing circuit boards of various specifications.

[0019] The circuit board in the utility model can directly fall onto the receiving plate after the detection is completed, which is convenient for handling and improves the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0021] Figure 2It is a schematic diagram of the structure in the utility model;

[0022] Figure 3 yes Figure 2 A schematic diagram of the appearance of the clamping assembly at the rear side;

[0023] Figure 4 yes Figure 3 Schematic diagram of the top view of the middle chuck. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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] Reference Figure 1-Figure 4According to an embodiment of a circuit board bending test device of the utility model, it includes a detection box 11, a detection chamber 12 is provided in the detection box 11, a No. 1 cylinder 13 is respectively provided on the front and rear sides of the detection box 11, and No. 1 piston rods extending from the two No. 1 cylinders 13 move toward each other and extend into the detection chamber 12, a mounting plate 14 is provided at the end of the No. 1 piston rod, a No. 1 sleeve 29 is provided on the side of the mounting plate 14, and the No. 1 piston rod is slidably connected in the No. 1 sleeve 29, and a clamping assembly 101 for clamping the circuit board is respectively provided on the sides of the two mounting plates 14 close to each other;

[0029] The clamping assembly 101 includes a hinged plate 15 which is hinged to the side of the mounting plate 14 and can swing left and right. A clamp 102 for clamping a circuit board is provided on the side of the hinged plate 15 .

[0030] In addition, a No. 2 air cylinder 16 is provided on the right side of the detection box 11 , and a pressure plate 17 is installed at the end of the No. 2 piston rod extending from the No. 2 air cylinder 16 through a force measuring mechanism, and a pressing column 18 is provided on the left side of the pressure plate 17 .

[0031] Testing process:

[0032] First, the staff controls the distance between the two mounting plates 14 and the clamps 102 thereon through the No. 1 cylinder 13. When the distance between the two clamps 102 matches the width of the circuit board to be tested, the staff pushes the mounting plate 14 forward and backward until the No. 1 piston rod abuts against the bottom of the No. 1 sleeve 29, and then the staff clamps the circuit board between the two clamping assemblies 101.

[0033] Afterwards, the staff controls the pressure plate 17 and the pressure column 18 to move to the left through the No. 2 cylinder 16 and makes the pressure column 18 press the clamped circuit board. In the process of the circuit board being pressed and deformed, the hinged plate 15 installed hingedly will swing a certain angle. At this time, the two mounting plates 14 will be close to each other for a distance to prevent the clamping assembly 101 from affecting the pressed circuit board. In the pressing process, the force measuring mechanism will measure the pressure of the pressure column 18. This clamping work of the circuit board is beneficial to accurate measurement.

[0034] In this embodiment, the force measuring mechanism includes a No. 2 sleeve 19 fixed to the right side of the pressure plate 17, the No. 2 piston rod extends into the No. 2 sleeve 19, and the No. 2 sleeve 19 is provided with a pressure sensor attached to the end of the No. 2 piston rod. When the pressure plate 17 and the pressure column 18 press the circuit board, the pressure sensor senses the pressure and transmits and displays the data.

[0035] In addition, in order to maintain stability during the pressing process of the circuit board, the pressure column 18 is provided with two upper and lower distributions. Due to the different specifications of the circuit boards, the pressure column 18 can slide up and down and can adjust the upper and lower positions. The left side of the pressure plate 17 is rotatably connected to a vertically arranged threaded shaft 20. Two opposite sections of threads are machined in the threaded shaft 20, and each section of the thread is connected to one of the pressure columns 18. A knob 21 is provided at the upper end of the threaded shaft 20. The staff can rotate the knob 21 to drive the threaded shaft 20 to rotate. During this process, the two pressure columns 18 will approach or move away from each other to adjust their positions pressed on the circuit board.

[0036] In order to facilitate the rotation of the knob 21, a through hole is provided in the upper side of the detection cavity 12. The through hole and the knob 21 are located at the same front and rear position. In order to prevent debris from bursting out when the circuit board is crushed, a rubber plate 22 for covering the through hole is provided on the upper side of the detection cavity 12.

[0037] The chuck 102 includes a left clamping plate 23 fixed on the side of the hinge plate 15 and a sliding plate 24 slidably connected to the side of the hinge plate 15. A right clamping plate 25 is fixed on the front side of the sliding plate 24. The sliding plate 24 extends to the left side of the left clamping plate 23 and is connected to the left clamping plate 23 by a spring. An electromagnet 26 for attracting the right clamping plate 25 is also provided in the left clamping plate 23. When the electromagnet 26 is energized, the right clamping plate 25 will approach the left clamping plate 23 and clamp the circuit board located therebetween. When the electromagnet 26 is powered off, the spring will cause the right clamping plate 25 to move to the right and release the circuit board. In addition, the detection box 11 is supported by a vertical pole, the detection cavity 12 opens downward, and a receiving tray 27 is provided on the lower side of the detection box 11. When the electromagnet 26 is powered off, the released circuit board will fall and fall on the receiving tray 27 for easy recovery.

[0038] In order to facilitate the installation of the circuit board, the detection cavity 12 opens to the left, and a baffle 28 is hinged on the left side of the detection box 11 . The detection box 11 is also provided with a permanent magnet for attracting the baffle 28 and making it stick to the detection box 11 .

[0039] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A circuit board bending test device, comprising a test box (11), wherein a test chamber (12) is provided in the test box (11), characterized in that: A No. 1 cylinder (13) is respectively provided on the front and rear sides of the detection box (11); No. 1 piston rods extending from the two No. 1 cylinders (13) move towards each other and extend into the detection chamber (12); a mounting plate (14) is installed at the end of the No. 1 piston rod; and a clamping assembly (101) for clamping a circuit board is respectively provided on the sides of the two mounting plates (14) that are close to each other; The clamping assembly (101) comprises a hinged plate (15) hinged to a side of the mounting plate (14) and capable of swinging left and right, and a clamp (102) for clamping a circuit board is provided on the side of the hinged plate (15); A No. 2 cylinder (16) is provided on the right side of the detection box (11), a No. 2 piston rod extending from the No. 2 cylinder (16) is provided with a pressure plate (17) at the end thereof via a force measuring mechanism, and a pressing column (18) is provided on the left side of the pressure plate (17).

2. A circuit board bending test device according to claim 1, characterized in that: A No. 1 sleeve (29) is provided on the side surface of the mounting plate (14), and the No. 1 piston rod is slidably connected in the No. 1 sleeve (29).

3. A circuit board bending test device according to claim 1, characterized in that: The force measuring mechanism comprises a No. 2 sleeve (19) fixed to the right side of the pressure plate (17), the No. 2 piston rod extends into the No. 2 sleeve (19), and a pressure sensor attached to the end of the No. 2 piston rod is provided in the No. 2 sleeve (19).

4. A circuit board bending test device according to claim 1, characterized in that: The pressure columns (18) are provided with two arranged in an upper and lower manner, and the pressure columns (18) are capable of sliding up and down. A vertically arranged threaded shaft (20) is rotatably connected in the left side surface of the pressure plate (17), and two sections of opposite threads are machined in the threaded shaft (20), and each section of the thread is connected to one of the pressure columns (18).

5. A circuit board bending test device according to claim 4, characterized in that: The upper end of the threaded shaft (20) is provided with a rotary handle (21); A through hole is provided in the upper side surface of the detection cavity (12), the through hole and the rotary handle (21) are located at the same front-to-back position, and a rubber plate (22) for covering the through hole is provided on the upper side surface of the detection cavity (12).

6. A circuit board bending test device according to claim 1, characterized in that: The clamping head (102) comprises a left clamping plate (23) fixed on the side of the hinge plate (15) and a sliding plate (24) connected to the side of the hinge plate (15) in a left-right sliding manner. A right clamping plate (25) is fixed to the front side of the sliding plate (24). The sliding plate (24) extends to the left side of the left clamping plate (23) and is connected to the left clamping plate (23) via a spring. An electromagnet (26) for attracting the right clamping plate (25) is also provided in the left clamping plate (23).

7. A circuit board bending test device according to claim 1, characterized in that: The detection box (11) is supported by vertical poles, the detection cavity (12) opens downward, and a receiving tray (27) is provided on the lower side of the detection box (11).

8. A circuit board bending test device according to claim 1, characterized in that: The detection chamber (12) opens to the left, and a baffle (28) is hingedly connected to the left side of the detection box (11). The detection box (11) is also provided with a permanent magnet for attracting the baffle (28) and making it stick to the detection box (11).

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