PCBA (Printed Circuit Board Assembly) board testing device of turbocharging electric control actuator

Abstract

The invention belongs to the technical field of printed circuit board testing, and particularly relates to a PCBA board testing device of a turbocharging electric control actuator, which comprises a base and a test board arranged above the base, a frame board is fixedly arranged between the test board and the base, a controller is mounted on the end face of the test board, and the PCBA board testing device further comprises a mounting table, the mounting table is arranged above the test table, the side wall of the mounting table is provided with a plurality of uniformly distributed mounting plates, and the bottom of each mounting plate is provided with a probe assembly. The design difficulty of an electric control actuator PCBA board test needle bed can be lowered, the requirement for the diameter of the probe is lowered, mutual interference caused by excessive concentration of the probe is avoided, the test stability is improved, meanwhile, the influence of probe abrasion on the accuracy of a test result can be lowered, and the test efficiency is improved. And automobile driving vibration and engine working vibration can be simulated, so that defect points on the PCBA board are exposed in advance, and the accuracy of a test result is improved.

Claims

1. A PCBA board testing device for a turbocharged electronically controlled actuator, comprising a base (1) and a test bench (2) arranged above the base (1), wherein a frame plate (3) is fixedly arranged between the test bench (2) and the base (1), and a controller (4) is installed on the end surface of the test bench (2), characterized in that: Also includes: A mounting platform (5) is arranged above the test platform (2), a plurality of evenly distributed mounting plates (6) are mounted on the side wall of the mounting platform (5), a probe assembly (7) is mounted on the bottom of each mounting plate (6), and the probes of each probe assembly (7) are distributed differently; A driving unit (8) is arranged on an end surface of the base (1), and the driving unit (8) is used to drive the mounting platform (5) to rotate and move up and down; A wear detection unit (9) is arranged on the end surface of the test bench (2), and the wear detection unit (9) is transmission-connected to the drive unit (8), and the base (1) is equipped with a resistance adjustment mechanism (10); A vibration unit (11) is mounted on an end surface of the test bench (2), and the vibration unit (11) is transmission-connected to a drive unit (8); A positioning and fixing component (12) is mounted on the end surface of the test bench (2) and is used to cooperate with each mounting plate (6) to press and fix the PCBA board; The connection component (13) is arranged between the test bench (2) and the mounting bench (5), and the connection component (13) is electrically connected to the controller (4).

2. A PCBA board testing device for a turbocharged electronically controlled actuator according to claim 1, characterized in that: The drive unit (8) comprises a drive motor (81) fixedly mounted on the end surface of the base (1); an output shaft (82) is mounted on the output end of the drive motor (81); a U-shaped plate (83) is mounted on the end surface of the test bench (2); an electric push rod (84) is fixedly plugged into the end surface of the U-shaped plate (83); a telescopic end of the electric push rod (84) is rotatably connected to the mounting platform (5); a telescopic rod (85) is fixedly connected to the bottom of the mounting platform (5); a telescopic groove is provided at the shaft end of the output shaft (82); a sliding block (86) is fixedly connected to the groove wall of the telescopic groove; a sliding groove (87) matching the sliding block (86) is provided on the rod wall of the telescopic rod (85); and both the drive motor (81) and the electric push rod (84) are electrically connected to the controller (4).

3. A PCBA board testing device for a turbocharged electronically controlled actuator according to claim 2, characterized in that: The wear detection unit (9) comprises a right transmission shaft (91) rotatably arranged on the end surface of the test bench (2), and the shaft end of the right transmission shaft (91) is fixedly connected to an insulating rotating disk (92), and the end surface of the insulating rotating disk (92) is installed with a plurality of groups of conductive columns (93), and each group of conductive columns (93) corresponds to a probe position of a corresponding probe assembly (7), and the probe assembly (7) is electrically connected to the controller (4) through the conductive columns (93) and the connecting assembly (13), and the right transmission shaft (91) and the output shaft (82) are jointly installed with a first belt transmission assembly (94).

4. A PCBA board testing device for a turbocharged electronically controlled actuator according to claim 3, characterized in that: The resistance adjustment mechanism (10) comprises a plurality of hollow insulating blocks (101) fixedly mounted on the end surface of a base (1), and a plurality of electromagnetic push rods (102) are fixedly mounted inside each hollow insulating block (101), and the telescopic end of each electromagnetic push rod (102) is fixedly connected to an insulating movable block (103), and a conductive ring (104) is fixedly inserted into the side wall of the insulating movable block (103), and a resistor rod (105) is fixedly mounted on the inner wall of the hollow insulating block (101), and the resistor rod (105) is fixedly mounted on the inner wall of the hollow insulating block (101), and the resistor rod (10 5) in sliding contact with the inner wall of the conductive ring (104), each of the insulating movable blocks (103) and the hollow insulating block (101) are jointly installed with a magnetic fixing component (106), and the magnetic fixing component (106) is electrically connected to the controller (4), after the electromagnetic component of the magnetic fixing component (106) is energized, the insulating movable block (103) and the hollow insulating block (101) are fixed to each other, and each of the electromagnetic push rods (102) is electrically connected to the corresponding conductive column (93) through the controller (4).

5. The PCBA board testing device for a turbocharger electronically controlled actuator according to claim 1, characterized in that: The vibration unit (11) comprises a plurality of T-shaped impact rods (111), a plurality of circular grooves (112) are provided at the bottom of the test bench (2), and each T-shaped impact rod (111) is slidably connected to the bottom of the corresponding circular groove (112), a return spring (113) is fixedly provided between the T-shaped impact rod (111) and the bottom of the circular groove (112) on the same side, and a hemispherical protrusion (114) is integrally formed at the bottom of each T-shaped impact rod (111), and each The top of each T-shaped impact rod (111) is fixedly connected to a rubber pad (115); a left transmission shaft (116) is fixedly mounted on the bottom of the test bench (2); and an impact plate (117) is mounted on the left transmission shaft (116); a plurality of protruding columns (118) corresponding to the positions of the T-shaped impact rods (111) are fixedly mounted on the end surface of the impact plate (117); and a second belt transmission assembly (119) is mounted together with the left transmission shaft (116) and the output shaft (82).

6. A PCBA board testing device for a turbocharged electronically controlled actuator according to claim 1, characterized in that: The positioning and fixing assembly (12) comprises two receiving platforms (121) fixedly mounted on the end faces of the test bench (2), and a group of positioning columns (122) are fixedly mounted on the end faces of the two receiving platforms (121), and a positioning groove (123) is provided on the end face of each of the positioning columns (122), and a group of elastic movable rods (124) are fixedly mounted on the bottom of each of the mounting plates (6), and a pressure ring (125) is installed on the telescopic end of each of the elastic movable rods (124), and a positioning plug column (126) matching the positioning groove (123) is fixedly mounted on the bottom of the pressure ring (125).

7. The PCBA board testing device for a turbocharger electronically controlled actuator according to claim 1, characterized in that: The connection assembly (13) comprises an insulating ring (131) sleeved on the outside of the output shaft (82), the inner wall of the insulating ring (131) being provided with a plurality of annular grooves, and a power supply ring (132) being fixedly mounted on the bottom of each annular groove, a plurality of conductive rods (133) being fixedly mounted on the shaft wall of the output shaft (82), and each conductive rod (133) being in sliding contact with the ring wall of the power supply ring (132) on the same side, and the conductive rods (133) and the power supply ring (132) being electrically connected to the controller (4).

8. The PCBA board testing device for a turbocharged electronically controlled actuator according to claim 1, characterized in that: A push rod (14) is slidably inserted into the end surface of the mounting platform (5) at a position on one side of each probe of the probe assembly (7), and a support spring (15) is fixedly provided between the end surface of each push rod (14) and the mounting platform (5).

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