CN216051855U

CN216051855U - Fixed pcba test fixture of manual rotatory pressfitting

Info

Publication number: CN216051855U
Application number: CN202122331442.2U
Authority: CN
Inventors: 向玉才; 徐志兵; 郭炎彬; 张琛星
Original assignee: Optofidelity High Tech Zhuhai Ltd
Current assignee: Optofidelity High Tech Zhuhai Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-15
Anticipated expiration: 2031-09-26

Abstract

The utility model aims to provide a manual rotary pressing fixed pcba test fixture which is compact in structure, convenient to operate and good in test effect and can effectively prevent a probe from being damaged. The probe box comprises a knob switch, an upper cover module and a lower needle block module, wherein the knob switch is in transmission connection with the upper cover module, the upper cover module is connected with the lower needle block module, a pressing plate is arranged on the upper cover module, a support plate and a plurality of probes are arranged on the lower needle block module, the support plate is matched with the pressing plate, and the probes are all hidden in the support plate. The utility model is applied to the technical field of pcba board test clamps.

Description

Fixed pcba test fixture of manual rotatory pressfitting

Technical Field

The utility model relates to the technical field of a pcba board test fixture, in particular to a manual rotating, pressing and fixing pcba test fixture.

Background

PCBA product can have different shapes according to different demands, and the test fixture of product also has different pressfitting fixed mode. The fixture is fixed by overturning and pressing, and the probe closer to the rotating shaft contacts with a product pressing plate or a product earlier in the overturning process of the upper cover of the manual test fixture of the PCBA product, so that the probe is easily bent and broken in the contact process, and the product is easily scratched.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides a manual rotary pressing fixed pcba test fixture which is compact in structure, convenient to operate, good in test effect and capable of effectively preventing a probe from being damaged.

The technical scheme adopted by the utility model is as follows: the probe box comprises a knob switch, an upper cover module and a lower needle block module, wherein the knob switch is in transmission connection with the upper cover module, the upper cover module is connected with the lower needle block module, a pressing plate is arranged on the upper cover module, a support plate and a plurality of probes are arranged on the lower needle block module, the support plate is matched with the pressing plate, and the probes are all hidden in the support plate.

Further, the top of knob switch is equipped with two rotating parts that are symmetrical structure, knob switch's bottom is equipped with the spacing groove that is the arc structure, knob switch pass through the screw rod with the clamp plate transmission is connected.

Further, the upper cover module comprises a cover plate and a pressing plate, the screw is in running fit with the cover plate, the pressing plate is arranged at the bottom of the cover plate, a limiting pin matched with the limiting groove is arranged on the cover plate, and a positioning groove matched with a product is arranged on the pressing plate.

Furthermore, one end of the upper cover module is hinged to the lower needle module, a buckle is arranged at the other end of the upper cover module, and a clamping block matched with the buckle is arranged on the lower needle module.

Further, lower needle module include tail faller, bottom plate support plate and a plurality of the probe, the tail faller is located the below of support plate and the tail faller with be equipped with a plurality of floating spring between the support plate, a plurality of the probe adaptation is installed on the tail faller, tail faller adaptation is installed on the bottom plate, be equipped with the standing groove with product looks adaptation on the support plate.

Furthermore, a plurality of guide pins matched with the product are arranged on the carrier plate.

The utility model has the following beneficial effects:

the structure for fixing the product to be tested by pressing is adopted, so that the situation that the probe is damaged and the product is scratched is avoided in the process that the upper cover module is turned over, the reject ratio of the product is reduced, the maintenance cost is reduced, the operation difficulty of the clamp is low, and the clamp is convenient for workers to operate.

Drawings

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

FIG. 2 is a schematic structural view in another aspect of the present invention;

FIG. 3 is a schematic structural diagram of the rotary switch;

FIG. 4 is a schematic structural diagram of the upper cover module;

FIG. 5 is a schematic structural view of the lower needle block module;

FIG. 6 is a schematic view of the structure of the probe.

Detailed Description

As shown in fig. 1 to 6, in this embodiment, the manual rotation press-fit fixing pcba test fixture includes a rotary switch 1, an upper cover module 2 and a lower pin block module 3, the rotary switch 1 is in transmission connection with the upper cover module 2, the upper cover module 2 is connected with the lower pin block module 3, a press plate 21 is disposed on the upper cover module 2, a carrier plate 31 and a plurality of probes 32 are disposed on the lower pin block module 3, the carrier plate 31 is adapted to the press plate 21, and the plurality of probes 32 are all hidden in the carrier plate 31.

One preferred scheme is that the top of knob switch 1 is equipped with two rotating parts 11 that are symmetrical structure, the bottom of knob switch 1 is equipped with spacing groove 12 that is arc structure, knob switch 1 through screw rod 13 with clamp plate 21 transmission is connected.

One preferred scheme is that the upper cover module 2 comprises a cover plate 22 and a pressing plate 21, the screw 13 is rotatably matched on the cover plate 22, the pressing plate 21 is arranged at the bottom of the cover plate 22, a limiting pin 23 matched with the limiting groove 12 is arranged on the cover plate 22, and a positioning groove matched with a product is arranged on the pressing plate 21.

One preferable scheme is that one end of the upper cover module 2 is hinged to the lower needle block module 3, the other end of the upper cover module 2 is provided with a buckle 24, and the lower needle block module 3 is provided with a clamping block 33 matched with the buckle 24.

One preferred scheme is that the lower needle block module 3 comprises a tail needle plate 34, a bottom plate 35, a carrier plate 31 and a plurality of probes 32, the tail needle plate 34 is arranged below the carrier plate 31, a plurality of floating springs 36 are arranged between the tail needle plate 34 and the carrier plate 31, the plurality of probes 32 are mounted on the tail needle plate 34 in an adaptive manner, the tail needle plate 34 is mounted on the bottom plate 35 in an adaptive manner, and a placing groove matched with a product is formed in the carrier plate 31.

Preferably, a plurality of guide pins 37 are disposed on the carrier plate 31 and all cooperate with the product.

The working principle of the utility model is as follows:

placing the product in the placing groove on the carrier plate 31, in the process, the guide pin 37 plays a role of limiting guide, by turning the upper cover module 2 around the hinge point, and snapping the upper cover module 2 and the lower needle module 3 through the snap 24 and the fixture block 33, and the product is limited and fixed through the positioning groove, by rotating the rotary switch 1 through the rotating part 11, the screw 13 is rotated downwards and pushes the pressing plate 21 to move in the direction approaching the carrier plate 31, so that the pressing plate 21 contacts with the carrier plate 31 and drives the carrier plate 31 to move downwards, the floating spring 36 is compressed, the probe 32 is exposed due to the downward displacement of the carrier plate 31, vertically pricks the product contact point, after the test is completed, by reversely rotating the rotary switch 1, the screw 13 is moved upwards, the pressure plate 21 moves up to the home position under the action of the screw 13 and a return spring in the cover plate 22.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a fixed pcba test fixture of manual rotatory pressfitting which characterized in that: it includes rotary switch (1), upper cover module (2) and lower needle piece module (3), rotary switch (1) with upper cover module (2) transmission is connected, upper cover module (2) with lower needle piece module (3) are connected, be equipped with clamp plate (21) on upper cover module (2), be equipped with support plate (31) and a plurality of probe (32) down on needle piece module (3), support plate (31) with clamp plate (21) looks adaptation, a plurality of probe (32) all hide in support plate (31).

2. The hand-operated rotary press-fit stationary pcba test fixture of claim 1, wherein: the top of knob switch (1) is equipped with two rotating parts (11) that are symmetrical structure, the bottom of knob switch (1) is equipped with spacing groove (12) that are arc structure, knob switch (1) pass through screw rod (13) with clamp plate (21) transmission is connected.

3. The hand-operated rotary press-fit stationary pcba test fixture of claim 2, wherein: the upper cover module (2) comprises a cover plate (22) and a pressing plate (21), the screw rod (13) is in running fit with the cover plate (22), the pressing plate (21) is arranged at the bottom of the cover plate (22), a limiting pin (23) matched with the limiting groove (12) is arranged on the cover plate (22), and a positioning groove matched with a product is formed in the pressing plate (21).

4. The hand-operated rotary press-fit stationary pcba test fixture of claim 1, wherein: one end of the upper cover module (2) is hinged to the lower needle block module (3), a buckle (24) is arranged at the other end of the upper cover module (2), and a clamping block (33) matched with the buckle (24) is arranged on the lower needle block module (3).

5. The hand-operated rotary press-fit stationary pcba test fixture of claim 1, wherein: lower needle piece module (3) include tail faller (34), bottom plate (35) support plate (31) and a plurality of probe (32), tail faller (34) are located the below of support plate (31) and tail faller (34) with be equipped with a plurality of between support plate (31) floating spring (36), a plurality of probe (32) adaptation is installed on tail faller (34), tail faller (34) adaptation is installed on bottom plate (35), be equipped with the standing groove with product looks adaptation on support plate (31).

6. The hand-operated rotary press-fit stationary pcba test fixture of claim 1, wherein: the carrier plate (31) is provided with a plurality of guide pins (37) which are matched with the product.