CN2798095Y

CN2798095Y - Probe structure for testing tool

Info

Publication number: CN2798095Y
Application number: CN 200520016813
Authority: CN
Inventors: 颜鸿杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-18
Filing date: 2005-04-18
Publication date: 2006-07-19
Anticipated expiration: 2015-04-18

Abstract

The utility model comprises an outer sleeve barrel, a shaft rod sheathed in the outer sleeve barrel, a probe body arranged at the upper part of the shaft rod, a first elastic body sheathed on the probe body, a second elastic body arranged between the probe body and the shaft rod, and a tail cover arranged on the connection opening of the outer sleeve barrel. By means of elastic and pressing functions of the two elastic bodies, the probe body penetrates through the penetrating opening at the other end of the outer sleeve barrel; thus, the probe body corresponding to the outer sleeve barrel does up and down displacement by means of the two elastic bodies to form a simple probe structure; in addition, the service life of the probe structure can be enhanced by means of the functions of the two elastic bodies.

Description

The probe structure of measurement jig

Technical field

The utility model relates to the probe structure improvement of measurement jig, aims to provide a needle body and borrows two elastic bodys in the outer sleeve to do a flexible upper and lower displacement, and become an easy probe structure.

Background technology

Press, general printed circuit board (PCB) is after finishing circuit cloth value, but for guaranteeing all normallies of every circuit, must choose through the test P.e.c. that electronic circuit is intact, again each electronic component is fixed on the printed circuit board (PCB), and the effect of general probe is to be disposed on the measurement jig, and contacts with each electronic component or printed circuit board (PCB), continuous by probe test result connect lead and pass computer back, to confirm whether determinand has bad place.

As shown in Figure 1, be the STRUCTURE DECOMPOSITION figure of general probe, its probe 1 is to comprise outer sleeve 11, axostylus axostyle 12, needle body 13.Elastic body 14 and tail-hood 15, this outer sleeve 11 has the accommodation space 111 of a hollow form, and these outer sleeve 111 1 ends are the bigger joint mouth 112 of bore, in addition end for bore less wear mouthfuls 113, one end of this axostylus axostyle 12 is the top supporting part 121 of big caliber, and be located in the aforesaid accommodation space 111, and to be overheads wear on mouthfuls 113 the madial wall in aforementioned this top supporting part 121, this needle body 13 is to be disposed at axostylus axostyle 12 tops, and penetrate out and wear mouth 113, this elastic body 14 is to be sheathed on the axostylus axostyle 12, the one end is that the top is located on the top supporting part 121, and this tail-hood 15 is the passages 152 with a hollow form, and this passage 152 can wear for axostylus axostyle 12, its tail-hood 15 is to be packed in to engage mouthful 112 places, and the one end is into the stop section 151 of little caliber and aforementioned elastic body 14 is done only to support.

Can make this needle body 13 do a flexible displacement by holding of outer sleeve 11 interior elastic bodys 14; Yet, only by unitary resilient body more easily form elastic fatigue and serviceable life shorter, the accuracy that forms test is not good, also increases the rate of changing of eliminating.

The utility model content

Fundamental purpose of the present utility model, be to solve above-mentioned shortage, compress effect by two elastomeric elasticity, and this needle body and penetrate this outer sleeve in addition end wear mouth, and can make this needle body do a flexible upper and lower displacement in outer sleeve by two elastic bodys, and become an easy probe structure, and can increase its serviceable life by two elastomeric effects.

For reaching above-mentioned purpose, this creation is to comprise an outer sleeve, to be sheathed on needle body, that axostylus axostyle, in the outer sleeve is disposed at the axostylus axostyle top and to be sheathed on first elastic body, on the needle body and to be disposed at needle body and second elastic body and between axostylus axostyle and to be disposed at outer sleeve and to engage tail-hood on the mouth, compress effect by two elastomeric elasticity, and this needle body and penetrate this outer sleeve in addition end wear mouth, and can make this needle body do a flexible upper and lower displacement in outer sleeve by two elastic bodys, and become an easy probe structure.

Description of drawings

Fig. 1 is for practising the STRUCTURE DECOMPOSITION figure that probe is arranged;

Fig. 2 is the one-piece construction stereographic map of the utility model middle probe;

Fig. 3 is the STRUCTURE DECOMPOSITION figure of the utility model middle probe;

Fig. 4 is the structural representation of the utility model middle probe;

Fig. 5 is the STRUCTURE DECOMPOSITION figure of measurement jig in the utility model;

Fig. 6 is the structural representation of measurement jig in the utility model.

[figure number explanation]

1 probe

11 outer sleeves

111 accommodation spaces

112 engage mouth

113 wear mouth

12 axostylus axostyles

121 top supporting parts

13 needle bodies

131 pressure sections

132 socket parts

14 elastic bodys

141 first elastic bodys

142 second elastic bodys

15 tail-hoods

151 stop sections

152 passages

2 leads

3 needle plates

31 pin holes

4 test panels

41 perforation

5 circuit board under test

51 tested points

6 slope plates

7 test machines

8 fixed heads

81 pin holes

Embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The probe structure of the utility model measurement jig, the structure of its probe 1 as shown in Figures 2 and 3, be to comprise metal outer sleeve 11 equally, axostylus axostyle 12, metal needle body 13 and tail-hood 15, this outer sleeve 11 has the accommodation space 111 of a hollow form, and this outer sleeve one end is the bigger joint mouth 112 of bore, in addition end for bore less wear mouthfuls 113, one end of this axostylus axostyle 12 is the top supporting part 121 of big caliber, and be located in the aforesaid accommodation space 111, and to be overheads wear on mouthfuls 113 the madial wall in aforementioned this top supporting part 121, one end of this needle body 13 is the pressure section 131 of big caliber, end is the less socket part 132 of caliber in addition, and be disposed at axostylus axostyle 12 tops, and socket part 132 1 ends then penetrate out and wear 113, this tail-hood 15 is the passages 152 with a hollow form, and this passage 152 can wear for axostylus axostyle 12, and its tail-hood 15 is to be packed in to engage mouthful 112 places.

Focusing on of this case: be to be provided with two elastic bodys in this accommodation space 111, it all can be compression spring, please the while three shine shown in Figure 4, first elastic body 141 is to be disposed on the socket part 132 of needle body, second elastic body 142 then is disposed between needle body pressure section 131 and the axostylus axostyle top supporting part 121, the in addition end that axostylus axostyle 12 corresponds to top supporting part 121 then connects establishes lead 2, can being shared the suffered pressure of probe 1 by first and second elastic body 141,142, and reaches the effect of mutual compensation.

And the measurement jig of the testing printed circuit board that adopts between present industry, as Fig. 5 and shown in Figure 6, be to include a fixed head 8, needle plate 3 and test panel 4, be preset with the pin hole 31 of each tested point 51 position of corresponding circuit board under test 5 on this needle plate 3 and the fixed head 8,81, plurality of probes 1 then is inserted in this pin hole 31, in 81, the one end is provided with lead 2 in order to signal is passed to test machine 7, test panel 4 then is located at needle plate 3 tops, also be preset with pin hole 31 corresponding perforation 41 on the test panel 4 with needle plate 3, and needle body 13 is the perforation 41 of passing test panel 4, and protrudes from test panel 4; Circuit board 5 to be tested is arranged at test panel 4 tops, contact with the needle body 13 of probe 1 by the tested point 51 of Measurer circuit board 5 to be tested, and electric signal is passed to second elastic body 142, axostylus axostyle 12 in regular turn, and the lead 2 that is connected by axostylus axostyle 12 bottoms is passed on the test machine, judge the whether conducting of each tested point by test machine 7, to finish the test jobs of circuit board.

What deserves to be mentioned is, compress effect by two elastomeric elasticity, can make this needle body do a flexible upper and lower displacement in outer sleeve by first and second elastic body, and become an easy probe structure, and can increase its serviceable life by two elastomeric effects, and can whether first and second elastomeric elasticity tired as can be known by the activity desire degree of axostylus axostyle, promptly axostylus axostyle for get loose shape then first and second elastic body elastic fatigue need to change.

In addition, the density of the tested point 51 of general circuit board to be tested 5 is comparatively intensive, and the volume of probe 1 is bigger, make the pin hole 31 that corresponds to each tested point 51 position on the needle plate 3, can't be just corresponding to the below of each tested point 51, and utilize a slope plate 6 to be arranged between needle plate 3 and the test panel 4, as shown in Figure 6, but and the position of correcting needle body 13, after making needle body 13 pass this slope plate 6, can be by passing under each tested point 51, and can make needle body 13 protrude from the equal height of test panel 4 by the elastic reaction of first and second elastic body 141,142.

As mentioned above, this creation provides the probe structure of a preferable feasible measurement jig, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be this creation preferred embodiment, be not to limit to this creation with this, be with, with approximate, identical person such as the structure of this creation, device, feature, all should belong to founding within purpose and the claim of this creation such as.

Claims

1, a kind of probe structure of measurement jig, it comprises outer sleeve, axostylus axostyle, needle body and tail-hood, this outer sleeve has the accommodation space of a hollow form, and this outer sleeve one end is the bigger joint mouth of bore, in addition end for bore less wear mouth, one end of this axostylus axostyle is the top supporting part of big caliber, and be located in the aforesaid accommodation space, and this top supporting part is an overhead on the aforementioned madial wall that wears mouthful, one end of this needle body is the pressure section of big caliber, end is the less socket part of caliber in addition, and be disposed at axostylus axostyle top, and socket part one end then penetrates out and wears mouth, and this tail-hood is the passage with a hollow form, and this passage can wear for axostylus axostyle, and its tail-hood is to be packed in to engage a mouthful place; It is characterized in that:

Be provided with two elastic bodys in this accommodation space, first elastic body is disposed on the socket part of needle body, and second elastic body then is disposed between needle body pressure section and the axostylus axostyle top supporting part.

2, the probe structure of measurement jig as claimed in claim 1 is characterized in that: the in addition end that this axostylus axostyle corresponds to top supporting part can connect establishes lead.

3, the probe structure of measurement jig as claimed in claim 1 is characterized in that: core elastomer is a compression spring.

4, the probe structure of measurement jig as claimed in claim 1 is characterized in that: this outer sleeve and needle body are that metal is made.

5, a kind of probe structure of measurement jig, it includes a fixed head, needle plate and test panel, be preset with the pin hole of each tested point position of corresponding circuit board under test on this needle plate, plurality of probes then is inserted in this pin hole, the one end is provided with lead in order to signal is passed to test machine, test panel then is located at the needle plate top, also be preset with on the test panel and the corresponding perforation of the pin hole of needle plate, and probe is the perforation of passing test panel, and protrude from test panel, circuit board to be tested is arranged at the test panel top, by Measurer tested point is contacted with probe, and electric signal is passed on the test machine by lead, judge the whether conducting of each tested point by test machine, to finish the test jobs of circuit board; It is characterized in that:

This probe comprises outer sleeve, axostylus axostyle, needle body, two elastic bodys and tail-hood.

6, the probe structure of measurement jig as claimed in claim 5, it is characterized in that: the outer sleeve of this probe has the accommodation space of a hollow form, and this outer sleeve one end is the bigger joint mouth of bore, in addition end for bore less wear mouth, one end of this axostylus axostyle is the top supporting part of big caliber, and be located in the aforesaid accommodation space, and this top supporting part is an overhead on the aforementioned madial wall that wears mouthful, one end of this needle body is the pressure section of big caliber, end is the less socket part of caliber in addition, and be disposed at above the axostylus axostyle, and socket part one end then penetrates out and wears mouth, this two elastic body is located in the accommodation space, first elastic body is disposed on the socket part of needle body, and second elastic body then is disposed between needle body pressure section and the axostylus axostyle top supporting part, and this tail-hood is the passage with a hollow form, and this passage can wear for axostylus axostyle, and its tail-hood is to be packed in to engage a mouthful place.

7, the probe structure of measurement jig as claimed in claim 5 is characterized in that: but be provided with the slope plate of the position of a correcting needle body between this needle plate and the test panel in addition.