Circuit board bending performance testing device

Abstract

The utility model provides a circuit board bending performance testing device, relates to the technical field of circuit board testing, and aims to solve the problems that a circuit board is easy to break in the bending performance testing process, fragments splash to influence safety, and the device is not easy to automatically move a protection plate upwards in the downward moving process of a pressing plate to protect the tested circuit board. Comprising a workbench and a mounting platen; a support is fixedly installed at the top of the workbench, the inner ends of connecting gears are in meshing transmission connection with first toothed plates, the outer ends of the connecting gears are in meshing transmission connection with second toothed plates, and a displacement detection plate is arranged at the lower end of a lower pressing groove. The displacement detection plate is always in contact with the bottom surface of the circuit board, so that the bending displacement of the circuit board under different pressing forces can be measured, the practicability of the device is improved, the two groups of protection plates can automatically move upwards to protect the circuit board when the bending performance of the circuit board is tested through downward movement of the pressing plate, and the working efficiency is improved. And the protection performance of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board testing, and more specifically, particularly relates to a circuit board bending performance testing device. Background Art

[0002] A printed circuit board (PCB) is a substrate that connects electronic components together, and a bending test is often used in production to evaluate the bending strength and plastic deformation of a printed circuit board. When an existing similar printed circuit board bending performance test device is used, the printed circuit board is prone to breakage during the bending performance test, causing fragments to fly and affect safety, and the device is not easy to automatically move the protective plate up during the downward movement of the pressure plate to protect the printed circuit board under test. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a circuit board bending performance testing device to solve the problem that similar existing circuit boards are easily broken during the bending performance test, causing fragments to fly and affect safety, and the device is not easy to automatically move the protective plate up when the pressure plate moves down to protect the tested circuit board.

[0004] The circuit board bending performance testing device of the utility model is achieved by the following specific technical means:

[0005] A circuit board bending performance testing device comprises a workbench and a mounting table;

[0006] A group of brackets are fixedly installed on the top of the workbench, and a group of connecting gears are rotatably installed at both ends of the brackets. A group of electric telescopic rods are fixedly installed on the brackets, and a group of pressure plates are fixedly installed on the bottom of the transmission shaft of the electric telescopic rods. A group of first tooth plates are fixedly installed on the outer ends of both sides of the pressure plates, and the inner ends of the connecting gears are respectively meshed and transmission connected with the first tooth plates on the pressure plates. A group of protective plates are fixedly installed on the front and rear ends of the workbench, and a group of second tooth plates are fixedly installed on the top of the protective plates, and the outer ends of the connecting gears are respectively meshed and transmission connected with the second tooth plates on the top of the protective plates. There are two groups of mounting plates in total, and the inner ends of the two groups of mounting plates are rotatably installed on the inner sides of the workbench, and a group of lower pressing grooves are formed between the two groups of mounting plates, and the pressing plate is placed at the upper end of the lower pressing groove. A group of displacement detection plates are also slidably installed on the workbench, and the displacement detection plates are placed at the lower end of the lower pressing grooves.

[0007] In at least some embodiments, a group of support plates are fixedly installed at both ends of the bottom of the workbench, and a group of connecting holes are opened on the support plates. A group of connecting rods are fixedly installed at both ends of the bottom of the displacement detection plate, and the connecting rods at both ends of the bottom of the displacement detection plate are slidably installed on the connecting holes of the support plates at the bottom of the workbench.

[0008] In at least some embodiments, a group of threaded holes are opened on the top of the movable frame, the threaded holes opened on the top of the movable frame are threadedly installed on the fixed screw rod, and the fixed plate is rotatably installed on the bottom of the fixed screw rod.

[0009] In at least some embodiments, a group of first elastic members are respectively sleeved and installed on the connecting rods at both ends of the bottom of the displacement detection plate, and the bottom of the first elastic member is in contact with the top surface of the support plate on the workbench.

[0010] In at least some embodiments, two sets of limit guide blocks are fixedly installed at the front and rear ends of the workbench, two sets of guide grooves are opened at the inner end of the protective plate, and the guide grooves at the inner end of the protective plate are slidably installed on the limit guide blocks at the front and rear ends of the workbench.

[0011] In at least some embodiments, a group of sliding rods are fixedly installed at both ends of the mounting platform, a group of sliding holes are opened at both ends of the bottom of the movable frame, and the sliding holes at both ends of the bottom of the movable frame are slidably installed on the sliding rods at both ends of the mounting platform.

[0012] In at least some embodiments, the bracket is provided with two groups of guide holes, a group of guide rods are fixedly mounted on the top ends of both sides of the pressure plate, and the guide rods on both sides of the pressure plate are slidably mounted on the guide holes of the bracket.

[0013] Compared with the prior art, the circuit board bending performance testing device of the utility model has the following beneficial effects:

[0014] 1. The setting of the movable frame in conjunction with the displacement detection plate is conducive to adjusting the movable frame to the desired position and rotating the fixing screw, so that the device can be convenient for quickly fixing circuit boards of different specifications and sizes, and the connecting rods at both ends of the bottom of the displacement detection plate are slidably installed on the connecting holes of the support plate at the bottom of the workbench, respectively, and cooperate with the first elastic member sleeved and installed on the connecting rod, so that the displacement detection plate of the device is always in contact with the bottom surface of the circuit board, so as to measure the bending displacement of the circuit board under different downward pressures, thereby improving the practicability of the device.

[0015] 2. The setting of the protective plate is beneficial when the electric telescopic rod drives the pressure plate to move downward to test the bending performance of the circuit board. The inner ends of the connecting gears are respectively meshed and connected with the first tooth plates on the pressure plate, and the outer ends of the connecting gears are respectively meshed and connected with the second tooth plates on the top of the protective plate. When the device moves the pressure plate downward to test the bending performance of the circuit board, the two sets of protective plates can automatically move up to protect the circuit board, thereby improving the protective performance of the device and avoiding the problem of the circuit board breaking during the bending performance test, causing fragments to splash and affect safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front axial view schematic diagram of the utility model.

[0017] Figure 2 It is a top view schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of disassembly and assembly of the mobile frame of the utility model.

[0019] Figure 4 It is a cross-sectional schematic diagram of a workbench of the utility model.

[0020] Figure 5 It is a schematic diagram of disassembly and assembly of the protective plate of the utility model.

[0021] Figure 6 It is a schematic diagram of the installation of the connecting gear of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 1. Workbench; 101. Bracket; 1011. Connecting gear; 1012. Guide hole; 1013. Electric telescopic rod; 102. Limiting guide block; 103. Pressing plate; 1031. Guide rod; 1032. First tooth plate; 104. Displacement detection plate; 1041. Connecting rod; 1042. First elastic member; 105. Support plate; 2. Protective plate; 201. Second tooth plate; 202. Guide groove; 3. Mounting table; 301. Sliding rod; 302. Moving frame; 3021. Sliding hole; 303. Fixing screw; 3031. Fixing plate. DETAILED DESCRIPTION

[0024] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0025] As attached Figure 1 To Attachment Figure 6 As shown:

[0026] Embodiment 1: The utility model provides a circuit board bending performance testing device, comprising a workbench 1 and a mounting plate 3;

[0027] A set of brackets 101 are fixedly installed on the top of the workbench 1, and a set of connecting gears 1011 are rotatably installed at both ends of the brackets 101. A set of electric telescopic rods 1013 are fixedly installed on the brackets 101, and a set of pressing plates 103 are fixedly installed at the bottom of the transmission shaft of the electric telescopic rods 1013. A set of first tooth plates 1032 are fixedly installed at the outer ends of both sides of the pressing plates 103, and the inner ends of the connecting gears 1011 are respectively meshed and driven with the first tooth plates 1032 on the pressing plates 103. The front and rear ends of the workbench 1 are fixedly installed. A group of protective plates 2 are installed, and a group of second tooth plates 201 are fixedly installed on the top of the protective plates 2, and the outer ends of the connecting gears 1011 are respectively meshed and transmission connected with the second tooth plates 201 on the top of the protective plates 2. There are two groups of mounting plates 3, and the inner ends of the two groups of mounting plates 3 are respectively rotatably installed on the inner sides of the workbench 1, and a group of lower pressing grooves are formed between the two groups of mounting plates 3, and the pressing plate 103 is placed at the upper end of the lower pressing groove. A group of displacement detection plates 104 are also slidably installed on the workbench 1, and the displacement detection plates 104 are placed at the lower end of the lower pressing groove.

[0028] like Figures 2 to 4As shown, two groups of guide holes 1012 are provided on the bracket 101, and a group of guide rods 1031 are fixedly installed on the top of both sides of the pressing plate 103, and the guide rods 1031 on both sides of the pressing plate 103 are slidably installed on the guide holes 1012 of the bracket 101, and a group of support plates 105 are fixedly installed on both ends of the bottom of the workbench 1, and a group of connecting holes are provided on the support plates 105, and a group of connecting rods 1041 are fixedly installed on both ends of the bottom of the displacement detection plate 104, and the two bottom ends of the displacement detection plate 104 The connecting rods 1041 at the ends are respectively slidably mounted on the connecting holes of the support plate 105 at the bottom of the workbench 1, and a group of first elastic members 1042 are respectively sleeved and mounted on the connecting rods 1041 at both ends of the bottom of the displacement detection plate 104, and the bottom of the first elastic member 1042 contacts the top surface of the support plate 105 on the workbench 1, and a group of sliding rods 301 are respectively fixedly mounted at both ends of the mounting plate 3, and a group of sliding holes 3021 are respectively opened at both ends of the bottom of the moving frame 302, and the sliding holes 3021 at both ends of the bottom of the moving frame 302 21 are respectively slidably mounted on the slide bars 301 at both ends of the mounting plate 3, a group of threaded holes are opened on the top of the mobile frame 302, the threaded holes opened on the top of the mobile frame 302 are threadedly mounted on the fixed screw 303, and the fixed plate 3031 is rotatably mounted on the bottom of the fixed screw 303; specifically, the sliding holes 3021 at both ends of the bottom of the mobile frame 302 are respectively slidably mounted on the slide bars 301 at both ends of the mounting plate 3, and the fixed plate 3031 is rotatably mounted on the bottom of the fixed screw 303, and the mobile frame 302 is adjusted. 2 to the desired position, rotate the fixing screw 303, so that the device can be convenient for quickly fixing circuit boards of different specifications and sizes, and the connecting rods 1041 at both ends of the bottom of the displacement detection plate 104 are slidably installed on the connecting holes of the bottom support plate 105 of the workbench 1, respectively, and cooperate with the first elastic member 1042 sleeved and installed on the connecting rod 1041, so that the displacement detection plate 104 of the device is always in contact with the bottom surface of the circuit board, so as to measure the bending displacement of the circuit board under different downward pressures, thereby improving the practicability of the device.

[0029] Embodiment 2: Based on Embodiment 1, Figure 5 and Figure 6As shown, two groups of limiting guide blocks 102 are fixedly installed at the front and rear ends of the workbench 1, and two groups of guide grooves 202 are opened at the inner end of the protective plate 2, and the guide grooves 202 at the inner end of the protective plate 2 are slidably installed on the limiting guide blocks 102 at the front and rear ends of the workbench 1; specifically, the guide grooves 202 at the inner end of the protective plate 2 are slidably installed on the limiting guide blocks 102 at the front and rear ends of the workbench 1, and when the electric telescopic rod 1013 drives the pressing plate 103 to move downward to perform a bending performance test on the circuit board, the inner ends of the connecting gears 1011 are respectively meshed and connected with the first tooth plates 1032 on the pressing plate 103, and the outer ends of the connecting gears 1011 are respectively meshed and connected with the second tooth plates 201 at the top of the protective plate 2, so that when the device moves down the pressing plate 103 to perform a bending performance test on the circuit board, the two groups of protective plates 2 can automatically move up to protect the circuit board, thereby improving the protection performance of the device and avoiding the problem of the circuit board breaking during the bending performance test and causing the fragments to splash and affect the safety.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When the utility model is in use, the sliding holes 3021 at the two ends of the bottom of the movable frame 302 are respectively slidably installed on the sliding rods 301 at the two ends of the mounting table 3, and the fixing plate 3031 is rotatably installed on the bottom of the fixing screw 303. After the movable frame 302 is adjusted to the required position, the fixing screw 303 is rotated, so that the device is convenient for quickly fixing circuit boards of different specifications and sizes, and the connecting rods 1041 at the two ends of the bottom of the displacement detection plate 104 are respectively slidably installed on the connecting holes of the bottom support plate 105 of the workbench 1, and cooperate with the first elastic member 1042 sleeved and installed on the connecting rod 1041, so that the displacement detection plate 104 of the device is always in contact with the bottom surface of the circuit board, so as to measure the bending displacement of the circuit board under different downward pressures, thereby improving The practicality of the device; the guide groove 202 at the inner end of the protective plate 2 is slidably installed on the limiting guide block 102 at the front and rear ends of the workbench 1. When the electric telescopic rod 1013 drives the pressure plate 103 to move downward to test the bending performance of the circuit board, the inner end of the connecting gear 1011 is respectively meshed and connected with the first tooth plate 1032 on the pressure plate 103, and the outer end of the connecting gear 1011 is respectively meshed and connected with the second tooth plate 201 at the top of the protective plate 2. As a result, when the device moves down the pressure plate 103 to test the bending performance of the circuit board, the two groups of protective plates 2 can automatically move up to protect the circuit board, thereby improving the protection performance of the device and avoiding the problem of the circuit board breaking during the bending performance test and causing fragments to splash and affect safety.

[0032] In this article, there are a few points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A circuit board bending performance testing device, comprising a workbench (1) and a mounting plate (3); A set of brackets (101) are fixedly mounted on the top of the workbench (1), and are characterized in that: A group of connecting gears (1011) are rotatably mounted at both ends of the bracket (101), a group of electric telescopic rods (1013) are fixedly mounted on the bracket (101), a group of pressing plates (103) are fixedly mounted at the bottom of the transmission shaft of the electric telescopic rod (1013), a group of first toothed plates (1032) are fixedly mounted at the outer ends of both sides of the pressing plate (103), and the inner ends of the connecting gears (1011) are meshed and transmission-connected with the first toothed plates (1032) on the pressing plate (103), a group of protective plates (2) are fixedly mounted at the front and rear ends of the workbench (1), and a group of second toothed plates (201 ), and the outer ends of the connecting gears (1011) are respectively meshed and transmission-connected with the second toothed plates (201) at the top of the protective plate (2), and the mounting plates (3) are provided with two groups, and the inner ends of the two groups of mounting plates (3) are respectively rotatably mounted on the inner sides of the working table (1), and a group of lower pressing grooves is provided between the two groups of mounting plates (3), and the pressing plate (103) is placed at the upper end of the lower pressing grooves. A group of displacement detection plates (104) is also slidably mounted on the working table (1), and the displacement detection plates (104) are placed at the lower end of the lower pressing grooves. The mounting plates (3) are also slidably mounted with a group of movable frames (302), and a group of fixed plates (3031) are mounted on the movable frames (302).

2. A circuit board bending performance testing device according to claim 1, characterized in that: The bracket (101) is provided with two groups of guide holes (1012), and a group of guide rods (1031) are fixedly installed on the top ends of both sides of the pressing plate (103), and the guide rods (1031) on both sides of the pressing plate (103) are slidably installed on the guide holes (1012) of the bracket (101).

3. A circuit board bending performance testing device according to claim 1, characterized in that: A group of support plates (105) are respectively fixedly mounted at both ends of the bottom of the workbench (1), and a group of connection holes are opened on the support plates (105); a group of connection rods (1041) are respectively fixedly mounted at both ends of the bottom of the displacement detection plate (104), and the connection rods (1041) at both ends of the bottom of the displacement detection plate (104) are respectively slidably mounted on the connection holes of the support plates (105) at the bottom of the workbench (1).

4. A circuit board bending performance testing device according to claim 1, characterized in that: A group of first elastic members (1042) are respectively sleeved and installed on the connecting rods (1041) at both ends of the bottom of the displacement detection plate (104), and the bottom of the first elastic member (1042) is in contact with the top surface of the support plate (105) on the workbench (1).

5. A circuit board bending performance testing device according to claim 1, characterized in that: A group of sliding rods (301) are fixedly mounted at both ends of the mounting platform (3), a group of sliding holes (3021) are respectively opened at both ends of the bottom of the movable frame (302), and the sliding holes (3021) at both ends of the bottom of the movable frame (302) are respectively slidably mounted on the sliding rods (301) at both ends of the mounting platform (3).

6. A circuit board bending performance testing device according to claim 1, characterized in that: A group of threaded holes are opened on the top of the movable frame (302), and the threaded holes opened on the top of the movable frame (302) are threadedly installed on the fixed screw rod (303), and the fixed plate (3031) is rotatably installed on the bottom of the fixed screw rod (303).

7. A circuit board bending performance testing device according to claim 1, characterized in that: Two groups of limiting guide blocks (102) are fixedly installed at the front and rear ends of the workbench (1), two groups of guide grooves (202) are opened at the inner end of the protective plate (2), and the guide grooves (202) at the inner end of the protective plate (2) are slidably installed on the limiting guide blocks (102) at the front and rear ends of the workbench (1).

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