CN212301765U

CN212301765U - Testing device for chip pins

Info

Publication number: CN212301765U
Application number: CN202020901302.7U
Authority: CN
Inventors: 钱子康; 董航; 王辉
Original assignee: Shanghai Zhusha Intelligent Technology Co ltd
Current assignee: Shanghai Zhusha Intelligent Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-01-05
Anticipated expiration: 2030-05-26

Abstract

The utility model discloses a testing device for chip pins, which comprises a base, wherein two supporting side plates are arranged on two sides above the base, an upper supporting plate is arranged between the upper ends of the two supporting side plates, a side-by-side hydraulic cylinder is arranged on the upper supporting plate, a lifting box is fixed at the lower end of the hydraulic cylinder, a transverse electric-driving two-way screw rod is rotatably arranged above the inner part of the lifting box, symmetrical nuts are connected on the electric-driving two-way screw rod by screw threads, probes are fixed on the lower surface of the nuts, first through holes are arranged at the positions corresponding to the probes on the lifting box, a bridge frame is arranged in the middle part of the upper surface of the base, a protective shell is arranged at the position corresponding to the probes on the upper surface of the bridge frame, the utility model discloses an electric-driving two-way screw rod is arranged, the operation is more convenient, a protective shell is, the probe will break away from the protective housing, and the rest time is located inside the protective housing, so the operation is also simpler.

Description

Testing device for chip pins

Technical Field

The utility model relates to a chip pin tests technical field, specifically is a testing arrangement for chip pin.

Background

The current automation control is developed rapidly, the functions of a control chip tend to be more complicated and diversified, and the chip per se realizes numerous complex functions. The time-sharing multiplexing of various functions of the chip is realized basically in a pin multiplexing mode for the outside of the chip. The multiplexing of chip functions and external pins is the same and tends to be more complicated, and the test probes of the conventional chip pin open/short circuit detection test device are exposed outside and are easily corroded by pollutants in the air, so that the sensitivity of the test device is reduced;

for this reason, a chip pin detection open/short circuit test device is proposed in the patent application No. 201720929304.5, which can adjust the position of one of the probes by manually rotating a threaded rod so that the device can accommodate different chips, and the probes can be accommodated inside the case by manually rotating another threaded rod to avoid the probes from being exposed to the air, which is a troublesome operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chip is testing arrangement for pin to the position of manually adjusting one of them probe among the solution prior art is more troublesome, and manual withdraws the probe the inside comparatively trouble problem of fit.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a testing arrangement for chip pin, includes the base, the top both sides of base all are provided with the support curb plate, two install the fagging between the upper end of support curb plate, install side by side pneumatic cylinder in the last fagging, the lower extreme of pneumatic cylinder is fixed with the lift box, the inside top of lift box is rotated and is installed horizontal two-way lead screw of electricity drive, threaded connection has the nut of symmetry on the two-way lead screw of electricity drive, the lower fixed surface of nut has the probe, first through-hole has been seted up with the position that the probe corresponds on the lift box, first through-hole is passed to the lower part of probe, the upper surface mid-mounting of base has the bridge type frame, the upper surface of bridge type frame is provided with protecting sheathing with the position that the probe corresponds, the second through-hole has been seted up with the position that protecting sheathing corresponds.

Preferably, a transverse guide rod is fixed inside the lifting box, and the guide rod transversely penetrates through the lower part of the nut.

Preferably, one side of the lifting box is provided with a driving device for driving an electrically-driven bidirectional screw rod to rotate, and the driving device comprises a driven wheel fixed with the electrically-driven bidirectional screw rod, a driving wheel arranged below the driven wheel, a belt used for connecting the driven wheel and the driving wheel, and a motor used for driving the driving wheel to rotate.

Preferably, the upper and lower sides of the two sides of the lifting box are both fixed with connecting rods, the end, away from the lifting box, of each connecting rod is fixed with a sliding block, the inner side of each supporting side plate is provided with a sliding way, and each sliding block is inserted into the corresponding sliding way.

Preferably, two ends of the electrically-driven bidirectional screw rod are rotatably connected with the lifting box through bearings.

Preferably, the first through hole has a lateral length greater than a length of the protective housing.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is provided with the electrically-driven bidirectional screw rod, the electrically-driven bidirectional screw rod can be rotated through the driving device, and further the distance between the two probes can be adjusted, so as to meet the requirements of chips with different sizes, and the operation is also more convenient;

2. the utility model discloses set up protecting sheathing, when the probe descends to survey, the probe will break away from protecting sheathing, and inside all the other times all were located protecting sheathing, avoided the probe to expose in the air to need not initiatively withdraw the probe, the operation is also comparatively simple.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the lifting box of the present invention;

fig. 3 is an enlarged view of region a of fig. 1.

In the figure: 1. a base; 2. a bridge frame; 21. a second through hole; 3. supporting the side plates; 31. a slideway; 4. a connecting rod; 41. a slider; 5. an upper supporting plate; 6. a hydraulic cylinder; 7. a lifting box; 71. a first through hole; 8. electrically driven bidirectional screw rods; 9. a drive device; 91. a driven wheel; 92. a belt; 93. a driving wheel; 94. a motor; 10. a guide bar; 11. a nut; 12. a probe; 13. and (4) protecting the shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a testing device for chip pins includes a base 1, supporting side plates 3 are disposed on both sides of the top of the base 1, an upper supporting plate 5 is mounted between the upper ends of the two supporting side plates 3, parallel hydraulic cylinders 6 are mounted on the upper supporting plate 5, a lifting box 7 is fixed to the lower end of the hydraulic cylinder 6, and two hydraulic cylinders 6 are disposed to drive the lifting box 7 to lift;

as shown in fig. 1, the connecting rods 4 are fixed above and below two sides of the lifting box 7, a sliding block 41 is fixed at one end of each connecting rod 4, which is far away from the lifting box 7, a sliding way 31 is formed in the inner side of each supporting side plate 3, the sliding block 41 is inserted into the sliding way 31, and when the lifting box 7 is lifted, the sliding block 41 can move up and down in the sliding way 31, so that the lifting box 7 can be lifted vertically without deflection;

as shown in fig. 1 and fig. 2, a transverse electrically-driven bidirectional screw 8 is rotatably mounted above the interior of the lifting box 7, two ends of the electrically-driven bidirectional screw 8 are rotatably connected with the lifting box 7 through bearings, a driving device 9 for driving the electrically-driven bidirectional screw 8 to rotate is mounted on one side of the lifting box 7, the driving device 9 comprises a driven wheel 91 fixed with the electrically-driven bidirectional screw 8, a driving wheel 93 arranged below the driven wheel 91, a belt 92 for connecting the driven wheel 91 with the driving wheel 93, and a motor 94 for driving the driving wheel 93 to rotate, and the motor 94 drives the electrically-driven bidirectional screw 8 to rotate positively and negatively through the driving wheel 93, the driven wheel 91 and the belt 92;

continuing to refer to fig. 1 and 2, the electrically driven bidirectional screw 8 is connected with symmetrical nuts 11 through threads, probes 12 are fixed on the lower surface of the nuts 11, a transverse guide rod 10 is fixed inside the lifting box 7, the guide rod 10 transversely penetrates through the lower part of the nuts 11, and when the electrically driven bidirectional screw 8 rotates forwards and backwards, the nuts 11 can be driven to do reciprocating motion in the horizontal direction, so that the distance between the two nuts 11 can be adjusted, and further the distance between the two probes 12 can be adjusted to adapt to different chip pins;

referring to fig. 1, 2 and 3, a first through hole 71 is formed in a position, corresponding to the probe 12, of the lifting box 7, the lower portion of the probe 12 penetrates through the first through hole 71, a bridge 2 is installed in the middle of the upper surface of the base 1, a protective casing 13 is arranged on the upper surface of the bridge 2 and corresponding to the probe 12, the transverse length of the first through hole 71 is larger than the length of the protective casing 13, a second through hole 21 is formed in the position, corresponding to the protective casing 13, of the bridge 2, when the probe 12 moves horizontally, the first through hole 71 is large in space and can adapt to the left and right movement of the probe 12, the protective casing 13 can protect the lower end of the probe 12, when the lifting box 7 descends, the protective casing 13 can be inserted into the lifting box 7 through the first through hole 71, and the probe 12 can perform detection through the second through hole 21.

The utility model discloses a theory of operation and use flow: when the device is used, a chip to be tested is placed in the middle of the upper surface of the base 1, then the hydraulic cylinder 6 is driven, the hydraulic cylinder 6 extends to drive the lifting box 7 to descend, the lifting box 7 drives the internal parts to move downwards, the protective shell 13 can be inserted into the lifting box 7 at the moment, and the probe 12 can pass through the second through hole 21 to test the pin of the chip;

when the test is not being performed, the probes 12 are located inside the lift box 7 and the protective case 13, so the probes 12 are not exposed to the air;

when testing, to different chips, the distance of pin is different, and accessible drive arrangement 9 drives electrically driven bidirectional screw 8 and rotates, when electrically driven bidirectional screw 8 just rotates in opposite directions, can drive nut 11 and make the reciprocating motion of horizontal direction to the distance between two nuts 11 of adjustment, and then the distance between two probe 12 of adjustment, with the chip pin of adaptation difference, convenient operation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A chip is testing arrangement for pin, includes base (1), its characterized in that: the utility model discloses a probe card for the automobile seat, including base (1), top both sides all are provided with support curb plate (3), two install between the upper end of support curb plate (3) fagging (5), install pneumatic cylinder (6) side by side on going up fagging (5), the lower extreme of pneumatic cylinder (6) is fixed with lift box (7), the inside top of lift box (7) is rotated and is installed horizontal two-way lead screw of electricity drive (8), threaded connection has symmetrical nut (11) on two-way lead screw of electricity drive (8), the lower fixed surface of nut (11) has probe (12), first through-hole (71) have been seted up with the position that probe (12) correspond on lift box (7), first through-hole (71) are passed to the lower part of probe (12), the upper surface mid-mounting of base (1) has bridge type frame (2), the upper surface mounting of bridge type frame (2) has protecting sheathing (13), and a second through hole (21) is formed in the bridge-shaped frame (2) at a position corresponding to the protective shell (13).

2. The device for testing a chip pin according to claim 1, wherein: a transverse guide rod (10) is fixed inside the lifting box (7), and the guide rod (10) transversely penetrates through the lower part of the nut (11).

3. The device for testing a chip pin according to claim 1, wherein: one side of the lifting box (7) is provided with a driving device (9) used for driving an electrically-driven bidirectional screw rod (8) to rotate, and the driving device (9) comprises a driven wheel (91) fixed with the electrically-driven bidirectional screw rod (8), a driving wheel (93) arranged below the driven wheel (91), a belt (92) used for connecting the driven wheel (91) and the driving wheel (93) and a motor (94) used for driving the driving wheel (93) to rotate.

4. The device for testing a chip pin according to claim 1, wherein: the upper and lower sides of the two sides of the lifting box (7) are respectively fixed with a connecting rod (4), one end of each connecting rod (4) far away from the lifting box (7) is fixed with a sliding block (41), the inner side of each supporting side plate (3) is provided with a sliding way (31), and each sliding block (41) is inserted into the corresponding sliding way (31).

5. The device for testing a chip pin according to claim 1, wherein: two ends of the electrically-driven bidirectional screw rod (8) are rotatably connected with the lifting box (7) through bearings.

6. The device for testing a chip pin according to claim 1, wherein: the transverse length of the first through hole (71) is larger than the length of the protective shell (13).