CN215575530U

CN215575530U - Flying probe testing machine for PCB

Info

Publication number: CN215575530U
Application number: CN202122151060.1U
Authority: CN
Inventors: 黄放
Original assignee: Huangshi Xinzhun Electronic Technology Co ltd
Current assignee: Huangshi Xinzhun Electronic Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-18
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to a flying probe tester for a PCB (printed circuit board), which comprises a vertically arranged frame, flying probe driving mechanisms are symmetrically arranged at two sides of the frame, a PCB clamping mechanism is arranged in the frame, the flying probe driving mechanism comprises a linear track which is arranged outside the frame and is horizontally arranged, a sliding plate which is arranged along the vertical direction is arranged on the linear track, an X-axis driving mechanism which is connected with the sliding plate is arranged outside the frame, a guide rail which is arranged along the vertical direction is arranged on the sliding plate, a sliding seat which slides along the vertical direction is arranged on the guide rail, a Z-axis driving mechanism which is connected with the sliding seat is arranged at one end of the sliding plate, a Y-axis driving mechanism which is arranged along the Y axis is arranged at one side of the sliding seat, probes for electrical measurement are arranged at the output end of the Y-axis driving mechanism, the Y-axis driving mechanisms at two sides drive the probes to simultaneously click the two sides of a PCB in the frame for power-on test, the X-axis driving mechanism and the Z-axis driving mechanism drive the probe to move so as to test different points on the PCB; the utility model improves the detection efficiency and reduces the occupied area.

Description

Flying probe testing machine for PCB

Technical Field

The utility model relates to the field of PCB (printed circuit board) detection equipment, in particular to a flying probe testing machine for a PCB.

Background

The PCB is widely used in the electronic product industry at present, the circuit on the PCB needs to be subjected to power-on test for ensuring the quality after the PCB is produced, whether open circuit or short circuit exists is detected, the size of a main board of some electrical appliances is very small, electrical test is mainly carried out through a flying probe tester, and the existing flying probe tester is large in size, large in occupied area and high in cost.

Disclosure of Invention

The utility model aims to solve the problems of large volume, large occupied area and high cost of the conventional flying probe testing machine, and provides a flying probe testing machine for a PCB (printed circuit board).

The specific scheme of the utility model is as follows: a flying probe tester for PCB board comprises a vertically arranged frame, flying probe driving mechanisms symmetrically arranged on both sides of the frame, a PCB board clamping mechanism arranged in the frame, the flying probe driving mechanism comprises a linear track which is arranged outside the frame and is horizontally arranged, a sliding plate which is arranged along the vertical direction is arranged on the linear track, an X-axis driving mechanism which is connected with the sliding plate is arranged outside the frame, a guide rail which is arranged along the vertical direction is arranged on the sliding plate, a sliding seat which slides along the vertical direction is arranged on the guide rail, a Z-axis driving mechanism which is connected with the sliding seat is arranged at one end of the sliding plate, a Y-axis driving mechanism which is arranged along the Y axis is arranged at one side of the sliding seat, probes for electrical measurement are arranged at the output end of the Y-axis driving mechanism, the Y-axis driving mechanisms at two sides drive the probes to simultaneously click the two sides of a PCB in the frame for power-on test, the X-axis driving mechanism and the Z-axis driving mechanism drive the probe to move so as to test different points on the PCB.

The PCB clamping mechanism comprises a fixed clamp plate arranged at the bottom in a frame, two vertical grooves are symmetrically formed in two side walls in the frame, vertical slide rails are respectively arranged on the side walls of the grooves in two sides in the same direction, a sliding cross beam is arranged on the slide rails in two sides, a movable clamp plate is arranged at the bottom of the sliding cross beam, a PCB is clamped between the movable clamp plate and the fixed clamp plate, a lifting driving mechanism is arranged at the upper end in the frame, and the lifting driving mechanism is connected with the sliding cross beam to drive the sliding cross beam to lift and adjust.

The lifting driving mechanism comprises a rotating shaft arranged at the upper ends of grooves on two sides, the rotating shaft is rotationally connected with a frame, two driving wheels are respectively arranged at two ends of the rotating shaft in the grooves, two synchronous belts are respectively arranged at two ends of a sliding beam, and each synchronous belt bypasses the corresponding driving wheel and is provided with a balancing weight.

Two sides of a frame are respectively provided with two groups of flying needle driving mechanisms, the upper end of the frame is provided with a linear track, the two groups of flying needle driving mechanisms share the linear track, the lower end of the frame is provided with an upper screw rod and a lower screw rod, the upper screw rod and the lower screw rod are both arranged along the horizontal direction, the left side of the upper screw rod and the right side of the lower screw rod are respectively provided with a servo motor, the upper screw rod is connected with a sliding plate positioned on the left side, and the lower screw rod is connected with a sliding plate positioned on the right side.

The working principle of the utility model is as follows: installing the PCB on a clamping mechanism, positioning a zero point through a master control system, and controlling the actions of an X-axis driving mechanism, a Y-axis driving mechanism and a Z-axis driving mechanism through programs corresponding to the PCB of the type, so that probes on two sides click the PCB according to a set sequence to carry out an electrifying test; two groups of flying probe driving mechanisms are arranged on each side, and different areas of the PCB are detected simultaneously, so that the detection efficiency is improved; when the PCBs of different models are replaced, the height of the movable beam is adjusted according to the actual situation, and the PCBs of different sizes can be adapted.

Compared with the prior art, the utility model has the following advantages: 1. two groups of flying needle driving mechanisms can be used for simultaneously detecting, so that the detection efficiency is improved, and the occupied area is reduced; 2. the movable cross beam is arranged to be of a lifting structure, so that the movable cross beam is convenient to adjust, and the PCBs of different models can be conveniently replaced for testing.

Drawings

FIG. 1 is a schematic perspective view a of the structure of the present invention;

FIG. 2 is a schematic perspective view b of the structure of the present invention;

FIG. 3 is a front view of the structure of the present invention;

FIG. 4 is a view A-A of FIG. 3;

FIG. 5 is a view B-B of FIG. 3;

FIG. 6 is a view C-C of FIG. 5;

in the figure: 1-frame, 2-sliding beam, 3-linear track, 4-sliding plate, 5-Z axis driving mechanism, 6-sliding seat, 7-probe, 8-upper screw, 9-lower screw, 10-servo motor, 11-rotating shaft, 12-driving wheel, 13-synchronous belt, 14-counterweight block, 15-movable clamping plate, 16-fixed clamping plate, 17-groove and 18-sliding rail.

Detailed Description

Referring to fig. 1-6, the present embodiment relates to a flying probe tester for PCB board, which includes a vertically arranged frame 1, two sides of the frame 1 are symmetrically provided with flying probe driving mechanisms, a PCB board clamping mechanism is arranged in the frame 1, the flying probe driving mechanism includes a horizontally arranged linear rail 3 arranged outside the frame 1, the linear rail 3 is provided with a sliding plate 4 arranged along a vertical direction, an X-axis driving mechanism connected with the sliding plate 4 is arranged outside the frame 1, the sliding plate 4 is provided with a vertically arranged guide rail, the guide rail is provided with a sliding seat 6 sliding along the vertical direction, one end of the sliding plate 4 is provided with a Z-axis driving mechanism 5 connected with the sliding seat 6, one side of the sliding seat 6 is provided with a Y-axis driving mechanism arranged along the Y-axis, an output end of the Y-axis driving mechanism is provided with a probe 7 for electrical measurement, the Y-axis driving mechanisms at two sides drive the probe 7 to simultaneously click two sides of the PCB board in the frame 1 for conducting an energization test, the X-axis driving mechanism and the Z-axis driving mechanism 5 drive the probe 7 to move so as to test different points on the PCB.

This embodiment PCB board clamping mechanism is including setting up a solid fixed splint 16 of bottom in frame 1, and both sides wall symmetry is equipped with two vertical recesses 17 in frame 1, and the lateral wall of the same direction of both sides recess 17 respectively is equipped with a vertical slide rail 18, is equipped with a sliding beam 2 on the slide rail 18 of both sides, and 2 bottoms of sliding beam are equipped with movable splint 15, are used for centre gripping PCB board between movable splint 15 and the solid fixed splint 16, the upper end is equipped with lift actuating mechanism in frame 1, and lift actuating mechanism is connected in order to drive 2 lift adjustment of sliding beam with sliding beam 2.

This embodiment lifting drive mechanism is including setting up a pivot 11 in both sides recess 17 upper end, and pivot 11 rotates with frame 1 to be connected, and 11 both ends of pivot are located recess 17 and respectively are equipped with a drive wheel 12, and sliding beam 2's both ends respectively are equipped with a hold-in range 13, and every hold-in range 13 is walked around corresponding drive wheel 12 and is equipped with a balancing weight 14.

In this embodiment, two sets of flying needle driving mechanisms are respectively arranged on two sides of the frame 1, a linear track 3 is arranged at the upper end of the frame 1, the two sets of flying needle driving mechanisms share the linear track 3, an upper screw 8 and a lower screw 9 are arranged at the lower end of the frame 1, the upper screw 8 and the lower screw 9 are both arranged along the horizontal direction, a servo motor 10 is respectively arranged on the left side of the upper screw 8 and the right side of the lower screw 9, the upper screw 8 is connected with the sliding plate 4 on the left side, and the lower screw 9 is connected with the sliding plate 4 on the right side.

Claims

1. The utility model provides a flying probe test machine for PCB board, includes the frame of vertical arrangement, characterized by: frame bilateral symmetry is equipped with flies needle actuating mechanism, is equipped with PCB board fixture in the frame, fly needle actuating mechanism including setting up in the frame outside, the straight line track that the level was arranged, the slide of arranging along vertical direction is equipped with on the straight line track, the X axle actuating mechanism who is connected with the slide is equipped with in the frame outside, the guide rail that vertical direction was arranged is equipped with on the slide, be equipped with on the guide rail along the gliding slide of vertical direction, slide one end is equipped with the Z axle actuating mechanism who is connected with the slide, the Y axle actuating mechanism who arranges along the Y axle is equipped with to slide one side, the probe that is used for the electricity to survey is equipped with to Y axle actuating mechanism's output, the Y axle actuating mechanism drive probe of both sides clicks the two sides of the PCB board in the frame simultaneously and tests the circular telegram test, X axle actuating mechanism and Z axle actuating mechanism drive probe and move in order to test different points on the PCB board.

2. The flying probe tester for PCB board as claimed in claim 1, wherein: PCB board clamping mechanism is including setting up a solid fixed splint of bottom in the frame, and both sides wall symmetry is equipped with two vertical recesses in the frame, and the lateral wall of the same direction of both sides recess respectively is equipped with a vertical slide rail, is equipped with a sliding beam on the slide rail of both sides, and the sliding beam bottom is equipped with movable clamp plate, is used for centre gripping PCB board between movable clamp plate and the solid fixed splint, the upper end is equipped with lift actuating mechanism in the frame, and lift actuating mechanism is connected in order to drive sliding beam lift adjustment with sliding beam.

3. The flying probe tester for PCB board as claimed in claim 2, wherein: the lifting driving mechanism comprises a rotating shaft arranged at the upper ends of the grooves on the two sides, the rotating shaft is rotatably connected with the frame, two driving wheels are respectively arranged at the two ends of the rotating shaft in the grooves, two synchronous belts are respectively arranged at the two ends of the sliding beam, and each synchronous belt bypasses the corresponding driving wheel and is provided with a balancing weight.

4. The flying probe tester for PCB board as claimed in claim 1, wherein: the flying needle type automatic feeding device is characterized in that two groups of flying needle driving mechanisms are arranged on two sides of the frame respectively, a linear track is arranged at the upper end of the frame, the two groups of flying needle driving mechanisms share the linear track, an upper screw rod and a lower screw rod are arranged at the lower end of the frame, the upper screw rod and the lower screw rod are arranged in the horizontal direction, a servo motor is arranged on the left side of the upper screw rod and on the right side of the lower screw rod respectively, the upper screw rod is connected with a sliding plate located on the left side, and the lower screw rod is connected with a sliding plate located on the right side.