PCBA board test vibration table

Abstract

The utility model discloses a PCBA board test vibration table comprising a support, a control box installed on the support, a vibration assembly installed on the control box, and a clamping assembly installed on the vibration assembly. The vibration assembly comprises a supporting plate arranged on the control box, springs connected with the control box are arranged at the diagonal positions of the supporting plate, a cam shaft and a cam are arranged between the supporting plate and the control box, and the cam and the supporting plate abut against each other and are movably connected with the control box and the support. The rotating speed of the first motor and the rotating speed of the second motor are accurately controlled through a rotary knob arranged on the control box, the cam shaft and the cam are driven by the first motor and the second motor respectively, vibration of the supporting plate at different angles is achieved, the cam abuts against the supporting plate, and stability of vibration transmission is guaranteed. The positions of the two baffles on the transverse plate are locked through the locking bolts, the connecting position of the adjusting rod and the lead screw is locked through the lock catch, and the positions of the baffles on the lead screw are conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a PCBA board testing vibration table. Background Art

[0002] In the electronics manufacturing industry, reliability testing of PCBA (Printed Circuit Board Assembly) boards is a very important step. Especially during transportation and actual use, PCBA boards may be subjected to various vibrations and shocks. These external factors may cause solder joints to loosen and components to damage. Therefore, it is very necessary to perform vibration testing on PCBA boards to evaluate their stability and reliability in actual use environments.

[0003] The vibration frequency and amplitude of traditional vibration tables are difficult to precisely control, resulting in low repeatability and accuracy of test results. The clamping device often cannot firmly fix PCBA boards of different sizes and shapes, and is prone to displacement or falling off during vibration, affecting test reliability. Utility Model Content

[0004] The purpose of the utility model is to provide a PCBA board test vibration table to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: A PCBA board test vibration table, including:

[0006] A bracket, a control box mounted on the bracket, a vibration assembly mounted on the control box, and a clamping assembly mounted on the vibration assembly;

[0007] The vibration assembly includes a support plate arranged on the control box, a spring connected to the control box is provided at the diagonal portion of the support plate, a camshaft and a cam are provided between the support plate and the control box, the cam abuts against the support plate and is movably connected to the control box and the bracket;

[0008] The clamping assembly includes a screw rod movably mounted on a support plate, one end of the screw rod is sleeved with an adjustment rod mounted on the bracket, a horizontal plate is provided on the screw rod and slides with the support plate, a baffle is provided on the horizontal plate for clamping the PCBA board, an elastic pad for supporting the PCBA board is also provided on one side of the baffle, and a locking pin is provided at the connection between the support plate and the camshaft.

[0009] In a further embodiment, the control box is provided with a switch for controlling the power on / off and a knob for adjusting the speed of the first motor and the second motor.

[0010] In a further embodiment, one end of the spring is threadedly connected to the support plate and the other end is threadedly connected to the control box.

[0011] In a further embodiment, one end of the camshaft is movably connected to a control box and a first motor installed in the control box is provided at the connection; the other end of the camshaft is movably connected to a support plate.

[0012] In a further embodiment, the cams are arranged on both sides of the camshaft, and the cams are connected to a second motor mounted on the bracket.

[0013] In a further embodiment, the screw rod is a left and right screw rod, and at least two horizontal plates are provided on the left and right screw rods. The adjusting rod is loosely matched with the screw rod and a lock is provided at the matching position for locking the connection position of the screw rod and the adjusting rod. The lock is set on the adjusting rod, and the adjusting rod is slidingly matched with the bracket. At least two baffles are provided on the horizontal plate, and the baffle is slidingly matched with the horizontal plate and a locking bolt is provided at the matching position.

[0014] In a further embodiment, the elastic pad is fixedly connected to the baffle, the locking pin is covered on the support plate and inserted into the camshaft, and the locking pin is slidably fitted with the camshaft.

[0015] Beneficial effect: The utility model discloses a PCBA board test vibration table, which accurately controls the rotation speed of the first motor and the second motor through the knob provided in the control box, and drives the camshaft and the cam respectively through the first motor and the second motor to realize the vibration of the support plate at different angles, and the cam abuts against the support plate to ensure the stability of vibration transmission; the locking bolt locks the positions of the two baffles on the horizontal plate, and the adjusting rod is locked with the screw rod through the lock buckle, which is convenient for adjusting the position of the baffle on the screw rod, and the position of the horizontal plate is adjusted by rotating the screw rod to meet the clamping of PCBA boards of different sizes and shapes. When the adjusting rod and the screw rod are separated, the clamping assembly can run in different directions, and the PCBA board is supported by the elastic pad to avoid collision during the vibration process; the spring limits the position of the support plate, and makes the support plate reciprocate under the operation of the cam, and the lock pin covers the support plate and is inserted into the camshaft so that the support plate will not fall off when it reciprocates under the operation of the cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the PCBA board installation of the present invention.

[0017] Figure 2 It is a schematic diagram of the clamping assembly of the present utility model.

[0018] Figure 3 It is a half-section schematic diagram of the clamping assembly of the present utility model.

[0019] Figure 4 It is a main structural diagram of the present utility model.

[0020] Figure 5 It is a left-side structural schematic diagram of the present utility model.

[0021] Figure 6 It is a left-side half-section structural schematic diagram of the present invention.

[0022] The accompanying drawings are marked as follows: 1. bracket; 2. vibration assembly; 3. clamping assembly; 11. control box; 12. knob; 13. first motor; 21. spring; 22. cam; 23. camshaft; 24. second motor; 25. lock pin; 31. support plate; 32. cross plate; 33. baffle; 34. elastic pad; 35. screw rod; 36. adjustment rod; 100. PCBA board. DETAILED DESCRIPTION

[0023] The utility model uses a PCBA board test vibration table, and accurately controls the rotation speed of the first motor and the second motor through the knob provided in the control box. The first motor and the second motor respectively drive the camshaft and the cam to realize the vibration of the support plate at different angles. The cam abuts against the support plate to ensure the stability of vibration transmission; the locking bolt locks the positions of the two baffles on the horizontal plate, and the adjusting rod is locked with the screw rod through the lock buckle, which makes it convenient to adjust the position of the baffle on the screw rod. The position of the horizontal plate is adjusted by rotating the screw rod. The specific embodiment is described in detail below.

[0024] Reference Figures 1-6 A PCBA board test vibration table is shown, comprising:

[0025] A bracket 1, a control box 11 mounted on the bracket 1, a vibration component 2 mounted on the control box 11, and a clamping component 3 mounted on the vibration component 2; the control box 11 is provided with a switch for controlling the power on / off and a knob 12 for adjusting the speed of the first motor 13 and the second motor 24.

[0026] The vibration component 2 includes a support plate 31 arranged on the control box 11, and a spring 21 connected to the control box 11 is provided at the diagonal portion of the support plate 31, one end of the spring 21 is threadedly connected to the support plate 31 and the other end is threadedly connected to the control box 11, and a camshaft 23 and a cam 22 are provided between the support plate 31 and the control box 11, one end of the camshaft 23 is movably connected to the control box 11 and a first motor 13 installed on the control box 11 is provided at the connection; the other end of the camshaft 23 is movably connected to the support plate 31, and the cam 22 abuts against the support plate 31 and both are movably connected to the control box 11 and the bracket 1; the cams 22 are provided on both sides of the camshaft 23, and the cam 22 is connected to the second motor 24 installed on the bracket 1.

[0027] The clamping assembly 3 includes a screw rod 35 movably mounted on the support plate 31, the screw rod 35 is a left screw rod 35, and at least two cross plates 32 are provided on the left and right screw rods 35. One end of the screw rod 35 is sleeved with an adjustment rod 36 mounted on the bracket 1. The adjustment rod 36 is clearance-matched with the screw rod 35 and a lock is provided at the fitting position for locking the connection position of the screw rod 35 and the adjustment rod 36. The lock is provided on the adjustment rod 36, and the adjustment rod 36 is slidably matched with the bracket 1. The screw rod 35 is provided with a cross plate 32 that slides with the support plate 31. 2. At least two baffles 33 are provided on the horizontal plate 32. The baffles 33 are slidably matched with the horizontal plate 32 and a locking bolt is provided at the matching position. The horizontal plate 32 is provided with a baffle 33 for clamping the PCBA board 100. One side of the baffle 33 is also provided with an elastic pad 34 for supporting the PCBA board 100. The elastic pad 34 is fixedly connected to the baffle 33. A locking pin 25 is provided at the connection between the support plate 31 and the camshaft 23. The locking pin 25 covers the support plate 31 and is inserted into the camshaft 23. The locking pin 25 is slidably matched with the camshaft 23.

[0028] Working Principle: First, turn on the power switch on the control box 11 to power on the vibration table; adjust the speed of the first motor 13 and the second motor 24 through the knob 12 on the control box 11 to change the vibration frequency and amplitude to meet different test requirements;

[0029] Then, by adjusting the position of the horizontal plate 32 through the cooperation of the adjusting rod 36 and the screw rod 35, the PCBA board 100 placed on the elastic pad 34 can be firmly clamped under the movement of the baffle 33; after the clamping is completed, the adjusting rod 36 is separated from the screw rod 35, and then

[0030] The first motor 13 is started, driving the camshaft 23 to rotate, causing the support plate 31 to shake;

[0031] The second motor 24 is started to drive the cam 22 to rotate. Since the cam 22 is in contact with the support plate 31, the rotation of the cam 22 will periodically push the support plate 31 to move up and down. The up and down movement of the support plate 31 is achieved through the elastic action of the spring 21 to achieve a smooth vibration effect; the support plate 31 vibrates up and down under the push of the cam 22, driving the clamping assembly 3 installed thereon to vibrate together, thereby completing the vibration test of the PCBA board 100.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A PCBA board test vibration table, comprising: A bracket, a control box mounted on the bracket, a vibration assembly mounted on the control box, and a clamping assembly mounted on the vibration assembly; The vibration assembly comprises a support plate provided on the control box, a spring connected to the control box is provided at the diagonal portion of the support plate, a camshaft and a cam are provided between the support plate and the control box, the cam abuts against the support plate and is movably connected to the control box and the bracket; The clamping assembly includes a screw rod movably mounted on a support plate, one end of the screw rod is sleeved with an adjustment rod mounted on the bracket, a horizontal plate is provided on the screw rod and slides with the support plate, a baffle is provided on the horizontal plate for clamping the PCBA board, an elastic pad for supporting the PCBA board is also provided on one side of the baffle, and a locking pin is provided at the connection between the support plate and the camshaft.

2. A PCBA board test vibration table according to claim 1, characterized in that: The control box is provided with a switch for controlling the power on / off and a knob for adjusting the rotation speed of the first motor and the second motor.

3. A PCBA board test vibration table according to claim 1, characterized in that: One end of the spring is threadedly connected to the support plate and the other end is threadedly connected to the control box.

4. A PCBA board test vibration table according to claim 1, characterized in that: One end of the camshaft is movably connected to the control box and a first motor installed in the control box is provided at the connection; the other end of the camshaft is movably connected to the support plate.

5. A PCBA board test vibration table according to claim 1, characterized in that: The cams are arranged on both sides of the camshaft, and the cams are connected to a second motor installed on the bracket.

6. A PCBA board test vibration table according to claim 1, characterized in that: The screw rods are left and right screw rods, and at least two horizontal plates are provided on the left and right screw rods. The adjusting rod is loosely matched with the screw rod and a lock is provided at the matching position for locking the connection position of the screw rod and the adjusting rod. The lock is set on the adjusting rod, and the adjusting rod is slidingly matched with the bracket. At least two baffles are provided on the horizontal plate, and the baffles are slidingly matched with the horizontal plate and a locking bolt is provided at the matching position.

7. A PCBA board test vibration table according to claim 1, characterized in that: The elastic pad is fixedly connected to the baffle, the locking pin is covered on the support plate and inserted into the camshaft, and the locking pin is slidably matched with the camshaft.

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