CN205091435U

CN205091435U - PCB testing arrangement

Info

Publication number: CN205091435U
Application number: CN201520106670.1U
Authority: CN
Inventors: 张代军
Original assignee: CHONGQING HWYTON ELECTRIC Co Ltd
Current assignee: CHONGQING HWYTON ELECTRIC Co Ltd
Priority date: 2015-02-14
Filing date: 2015-02-14
Publication date: 2016-03-16
Anticipated expiration: 2025-02-14

Abstract

The utility model relates to a test PCB testing arrangement, including probe support plate, base plate, pressure stick, closing device, base and a plurality of elasticity probe, a plurality of elasticity probes set up at the probe support plate, the base plate sets up directly over the probe support plate, pressing excellent lower surface and connecting the execution end at base plate surface connections closing device, the closing device bolt fastening at its characterized in that, still includes a plurality of locating pins, PCB board support plate on the base, a plurality of locating pins set up on the probe support plate, PCB board support plate is located the probe support plate directly over, and PCB board support plate, elasticity probe externally under the pressure, can 0-10mm of axial compression, finely tune the atress of the contact of awaiting measuring on probe and the PCB board that awaits measuring by the elasticity probe, the rigidity contact of the probe of avoiding and the PCB board that awaits measuring and eat the mistake that the unsaturated probe of tin did not touch the PCB board and survey.

Description

PCB proving installation

Technical field

The utility model relates to PCB and detects proving installation, particularly relates to a kind of PCB proving installation.

Background technology

PCB, also known as printed circuit board (PCB), be the supplier of electronic devices and components electrical connection, therefore, PCB is very important electronic unit.When a slice PCB needs to detect multiple contacts above, the method adopted under normal circumstances goes one by one to measure with universal meter and oscillograph, just likely data obfuscation is there is when the data measured are many time, and the workload measured also is very large, is extremely unfavorable for increasing work efficiency.In addition; in use also there is a very large shortcoming in existing PCB test tool: the detector probe on needle plate and pcb board rigid contact to be measured; then usually can because hold down gag or locating device inaccurate and damage pcb board; or can should be some contact on pcb board to eat tin not full, and cause this contact to be surveyed by mistake.

Summary of the invention

The purpose of this utility model is to solve pcb board and probe rigid contact; And due to contact eat tin not full time, contact can not touch probe and cause the problem by mistake surveyed.

In order to solve the problem, the utility model proposes a kind of PCB proving installation, comprise probe support plate, substrate, pressure bar, hold down gag, some elastic probes, described some elastic probes are arranged on probe support plate, described substrate is arranged at directly over probe support plate, described pressure bar lower surface is connected to the actuating station that upper surface of base plate connects hold down gag, it is characterized in that, also comprise some register pins, pcb board support plate, described some register pins are arranged on probe support plate, described pcb board support plate is positioned at directly over probe support plate, and pcb board support plate, described elastic probe is under external pressure, can axial compression 0 ~ 10mm.

Pilot hole on pcb board to be measured is through the register pin on probe support plate, relative with the position of register pin fixing due to elastic probe, positioning precision is high, simple with this fit system in pin and hole, pcb board support plate can be spacing to pcb board vertical direction to be measured, simultaneously because elastic probe is by can at axially-movable 0 ~ 10mm in external pressure situation, then can effectively avoid rigid contact between pcb board to be measured and elastic probe, damage pcb board and avoid due to for some contact on pcb board to eat tin not full, and cause the result of this contact survey by mistake.

Further optimization, guide plate can lead to pcb board to be installed, is more can have directivity in installation, reduces due to the electrical equipment original paper on register pin damage pcb board.

Further optimization, the through hole of pcb board support plate has guiding to elastic probe, and prevents elastic probe inclination and distortion.

Further optimization, pcb board support plate is in pedestal level, and guide pillar can the position of effective fixing spring; without under pressure condition; the upper surface of pcb board support plate did not have elastic probe, and the contact head of protection elastic probe is impaired, prevented elastic probe scratch simultaneously, wiped electronic devices and components bottom pcb board off.

Further optimization, slider-crank mechanism is easy to operate in hand-operated clamping process, compresses reliable.

Further optimization, air-cylinder compressing device can be easy to operate, and adopt air pressure clamping, can realize pressure can quantize, and prevents pressure jump to the damage of pcb board simultaneously.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:

Fig. 1 is the utility model embodiment one structural representation;

Fig. 2 is Fig. 1 left view structural representation;

Fig. 3 is the structural representation of the utility model embodiment two;

Fig. 4 is the structural representation of the utility model embodiment three;

Mark in above-mentioned figure is: hold down gag 1, substrate 2, pressure bar 3, elastic probe 4, register pin 5, pcb board support plate 6, probe support plate 7, guide plate 8, through hole 9, pedestal 10, spring 11, guide rod 12, pilot hole 13, pcb board to be measured 20.

Embodiment

The purpose of this utility model is to solve the detector probe on current needle plate and pcb board to be measured 20 rigid contact; then usually can because hold down gag 1 or locating device inaccurate and damage pcb board; or can should be some contact on pcb board to eat tin not full, and cause this contact to be surveyed by mistake.

Embodiment one:

As shown in Figure 1, the utility model PCB proving installation, comprises hold down gag 1, substrate 2, pressure bar 3, elastic probe 4, register pin 5, pcb board support plate 6, probe support plate 7, pedestal 10, pcb board to be measured 20.

Four ends of probe support plate 7 arrange and are threaded on the surface level of pedestal 10, some elastic probes 4 are threaded on probe support plate 7, every root elastic probe 4 is arranged with on pcb board 20 to be measured, contact to be measured is corresponding, probe support plate 7 has been threaded register pin 5, register pin 5 is corresponding with the screw fixed hole on pcb board 20 to be measured to be arranged, pcb board support plate 6 is provided with in the left and right sides of probe support plate 7, the height of pcb board support plate 6, elastic probe 4, register pin 5 becomes arithmetic progression to increase gradually, and difference 10mm, hold down gag 1 is had directly over probe support plate 7, hold down gag 1 be slider-crank mechanism, the supporting seat of slider-crank mechanism is bolted on the vertical plane of pedestal 10 by four, substrate 2 is bolted at the execution slide block place of slider-crank mechanism, on substrate 2, bolt connects pressure bar 3, pressure bar 3 is distributed in tabula rasa place pcb board 20 to be measured not having electronic devices and components, as shown in Figure 2, in the left and right sides of probe support plate 7, guide plate 8 is installed, left and right guide plate is arranged symmetrically with about probe support plate 7, guide plate 8 lower end, right side is threaded on pedestal 10, the upper end of right side guide plate 8 is tilted to the right and acutangulates with pedestal 10 upper surface.

As shown in Figure 2, pcb board 20 to be measured is along the wedge shape section by left and right guide plate 8 one-tenth, as shown in Figure 1, left and right adjustment pcb board 20 to be measured, the screw fixed hole of pcb board 20 to be measured is worn register pin 5, pulls the handle of hold down gag 1, the actuating station of slider-crank mechanism drives the pressure bar 3 on substrate 2 to move downward, pressure bar 3 promotes pcb board to be measured, the left and right sides of pcb board 20 to be measured and the formation terminal fitting into hold down gag 1 of pcb board support plate 6.

Embodiment two:

As shown in Figure 3, the difference of the present embodiment and embodiment 1 is, the hold down gag 1 that embodiment 1 adopts is slider-crank mechanism, and the hold down gag 1 of the present embodiment is cylinder-pressing, the bottom thread of cylinder is fixed on pedestal 10 top, and piston rod thread connects on a substrate 2.

Embodiment three:

Through hole 9 is also comprised, spring 11, guide rod 12, pilot hole 13 in the present embodiment.

As shown in Figure 4, the hold down gag 1 that adopts of the present embodiment the hold down gag 1 of embodiment 2; Pcb board support plate 6 is with the difference of embodiment 1, pcb board support plate 6 is positioned at directly over probe support plate 7, pcb board support plate 6 offers some through holes 9 corresponding with elastic probe 4 and register pin 5, be threaded with guide rod 12 at pedestal 10, guide rod 12 is through the pilot hole 13 on back-up block 6, guide rod 12 has spring 11 between pcb board support plate 6 and pedestal 10, and spring 11 is through guide rod 12.

Before the effect not being subject to hold down gag 1, the upper surface of pcb board support plate 6 flooded elastic probe 4, and under the pressure effect being subject to hold down gag 1, the decrement of elastic probe 4 is at 0 ~ 10mm.

Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; without departing from the concept of the premise utility; some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.

Claims

1. a PCB proving installation, comprise probe support plate (7), substrate (2), pressure bar (3), hold down gag (1), pedestal (10) and some elastic probes (4), described some elastic probes (4) are arranged on probe support plate (7), described substrate (2) is arranged at directly over probe support plate (7), described pressure bar (3) lower surface is connected to the actuating station that substrate (2) upper surface connects hold down gag (1), hold down gag (1) is bolted on pedestal (10), it is characterized in that: also comprise some register pins (5), pcb board support plate (6), described some register pins (5) are arranged on probe support plate (7), described pcb board support plate (6) is positioned at directly over probe support plate (7), and pcb board support plate (6), described elastic probe (4) is under external pressure, can carry by axial compression 0 ~ 10mmPCB plate, pcb board support plate (6) comprises two pieces of brace tables, two pieces of brace tables are arranged about probe support plate (7) specular.

2. PCB proving installation as claimed in claim 1, it is characterized in that: also comprise some guide plates (8), described some guide plates (8) are fixed on the both sides of probe support plate (7), guide plate (8) and probe support plate (7) not homonymy.

3. PCB proving installation as claimed in claim 1, it is characterized in that: also comprise through hole (9), described through hole (9) is positioned on pcb board support plate (6), the layout that through hole (9) is corresponding with the elastic probe (4) on probe support plate (7).

4. PCB proving installation as claimed in claim 3, it is characterized in that: also comprise spring (11), some guide pillars (12) and some pilot holes (13), described pcb board support plate (6) is positioned at the coffin that four sides, pedestal (10) bottom surround, pedestal (10) and pcb board support plate (6) clearance fit; Pilot hole (13) is positioned on pcb board support plate (6), and described guide pillar (12) screw thread is fixed on pedestal (10) bottom, and guide pillar (9) is successively through the pilot hole (13) on spring (11) and pcb board support plate (6).

5. PCB proving installation as claimed in claim 1, is characterized in that: described hold down gag (1) forms slider-crank mechanism by execution bar, handle rocker, frame and connecting rod, and the actuation end through the execution bar in the hole in frame is threaded with substrate (2).

6. PCB proving installation as claimed in claim 1, it is characterized in that: the power source of described hold down gag (1) is cylinder, actuation end is the piston rod of cylinder, and piston rod is threaded with substrate (2).