CN214750692U

CN214750692U - Microneedle test jig for PCB

Info

Publication number: CN214750692U
Application number: CN202120850626.7U
Authority: CN
Inventors: 杨芳芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2021-11-16
Anticipated expiration: 2031-04-24

Abstract

The utility model relates to a PCB technical field especially relates to a micropin test jig that PCB used, include the bottom plate, place the frame and push down the mechanism, place the top outer wall that the frame is fixed in the bottom plate, and the inner wall of placing the frame is fixed with the baffle of two symmetric distributions, two the top outer wall of baffle is seted up the first jack and the second jack that the equidistance distributes respectively, and the inside of first jack and the inside of second jack all pegs graft and have same micropin body. The utility model discloses a cylinder operation drives L shaped plate down, then L shaped plate drives the connecting block down, then it is down to drive pushing mechanism, then the caulking groove on the T shape protection pad forms the joint cooperation with the top of micropin body, can protect the top of micropin body, when pushing mechanism protects the micropin body down, the accessible rotates the screw rod and drives the fixture block and place the locating slot formation joint cooperation that corresponds on the frame to avoid pushing mechanism to rock, improve the protectiveness to the micropin body.

Description

Microneedle test jig for PCB

Technical Field

The utility model relates to a PCB technical field especially relates to a micropin test jig that PCB used.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical interconnection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

The test jig that micropins that present PCB used waited for when testing caused unnecessary injury to the top of micropin very easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a micro-needle testing frame for a PCB.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a micro-needle testing frame for a PCB comprises a bottom plate, a placing frame and a pressing mechanism, wherein the placing frame is fixed on the outer wall of the top of the bottom plate, two partition plates which are symmetrically distributed are fixed on the inner wall of the placing frame, the outer walls of the tops of the two partition plates are respectively provided with a first jack and a second jack which are equidistantly distributed, the inner part of the first jack and the inner part of the second jack are respectively inserted with a same micro-needle body, the inner wall of the bottom of the placing frame is fixed with a protective pad, the middle parts of the outer walls of the two sides of the placing frame are respectively provided with a T-shaped sliding chute, the inner wall of the T-shaped sliding chute is connected with a T-shaped sliding block in a sliding manner, one end of each T-shaped sliding block is fixed with a connecting block, the outer wall of one side of each connecting block is fixed with a rotating shaft through a bearing, one end of each rotating shaft is fixedly connected with the pressing mechanism, the pressing mechanism comprises a pressing plate, and the middle parts of the two sides of the outer wall of the bottom of the pressing plate are respectively fixed with a supporting plate, the bottom outer wall of holding down plate is fixed with T shape protection pad, and T shape protection pad, the caulking groove that the equidistance distributes is seted up to the bottom outer wall of T shape protection pad, and caulking groove and micropin body looks joint, two one side outer wall of backup pad sets up threaded hole, and the inner wall spiro union of threaded hole has the screw rod, the one end of placing the frame that is close to of screw rod is fixed with the fixture block, and places the constant head tank that the equidistance distributes that all sets up on upper portion in the both sides outer wall of frame, the fixture block forms the joint cooperation with the constant head tank, the bottom plate is located the top outer wall of placing the frame both sides and all is fixed with adjusting part, and adjusting part and connecting block.

Preferably, the adjusting part comprises an air cylinder, the air cylinder is fixed on the outer wall of the top of the bottom plate, an L-shaped plate is fixed at the top end of a piston rod of the air cylinder, and the top end of the L-shaped plate is fixedly connected with the connecting block.

Preferably, the connecting block forms sliding fit with the outer wall of placing the frame, and the top outer wall of micropin body and protection pad contacts.

Preferably, the specification of the protection pad is matched with the specification of the placement frame, and the placement frame is positioned between the two support plates.

Preferably, the specification of the partition plate is matched with that of the placing frame.

Preferably, the cylinder is connected with a switch through a wire, and the switch is connected with a microprocessor through a wire.

The utility model has the advantages that:

1. when the microneedle test stand for the PCB is used, the L-shaped plate is driven to descend by the operation of the air cylinder, then the L-shaped plate drives the connecting block to descend, then the pressing mechanism is driven to descend, and then the caulking groove on the T-shaped protective pad is in clamping fit with the top end of the microneedle body, so that the top end of the microneedle body can be protected;

2. this micropin test jig that PCB used, when mechanism protects the micropin body pushes down, the accessible rotates the screw rod and drives the fixture block and place the frame on the corresponding locating slot form the joint cooperation to avoid pushing down the mechanism and rock, improve the stability of pushing down the mechanism, improve the protectiveness to the micropin body.

Drawings

Fig. 1 is a schematic view of a vertical cross-sectional structure of a microneedle test stand for a PCB according to the present invention;

fig. 2 is a schematic top view of a placement frame of a microneedle test stand for a PCB according to the present invention;

fig. 3 is a schematic side view of a vertical cross-sectional structure of a microneedle test stand for a PCB according to the present invention;

fig. 4 is the utility model provides a micro-needle testing jig's that PCB used pushing down mechanism spatial structure sketch map.

In the figure: the device comprises a base plate 1, a placing frame 2, a protection pad 3, a partition plate 4, a microneedle body 5, a sliding groove 6T-shaped, a sliding block 7T-shaped, a connecting block 8, a supporting plate 10, a lower pressing plate 11, a protection pad 12T-shaped, an embedding groove 13, a screw rod 14, a clamping block 15, a positioning groove 16, a L-shaped plate 17 and an air cylinder 18.

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.

Referring to fig. 1-4, a microneedle test jig for a PCB comprises a base plate 1, a placement frame 2 and a pressing mechanism, wherein the placement frame 2 is fixed on the outer wall of the top of the base plate 1, two partition plates 4 are symmetrically distributed on the inner wall of the placement frame 2, the specifications of the partition plates 4 are matched with the specifications of the placement frame 2, the outer walls of the tops of the two partition plates 4 are respectively provided with a first jack and a second jack which are distributed equidistantly, the interior of the first jack and the interior of the second jack are respectively inserted with a microneedle body 5, the inner wall of the bottom of the placement frame 2 is fixed with a protection pad 3, the specifications of the protection pad 3 are matched with the specifications of the placement frame 2, the placement frame 2 is positioned between two supporting plates 10, the middle parts of the outer walls of two sides of the placement frame 2 are respectively provided with a T-shaped chute 6, the inner wall of the T-shaped chute 6 is slidably connected with a T-shaped slider 7, one end of each T-shaped slider 7 is fixed with a connecting block 8, and the outer wall of one side of the two connecting blocks 8 is fixed with a rotating shaft through a bearing, the connecting blocks 8 form sliding fit with the outer wall of the placing frame 2, the microneedle body 5 contacts with the outer wall of the top of the protective pad 3, one end of the two rotating shafts is fixedly connected with a pressing mechanism, the pressing mechanism comprises a pressing plate 11, two supporting plates 10 and a T-shaped protective pad 12, the middle parts of the two sides of the outer wall of the bottom of the pressing plate 11 are fixed with the supporting plates 10, the outer wall of the bottom of the pressing plate 11 is fixed with the T-shaped protective pad 12, the outer wall of the bottom of the T-shaped protective pad 12 is provided with caulking grooves 13 which are distributed at equal intervals, the caulking grooves 13 are clamped with the microneedle body 5, when in use, the L-shaped plate 17 is driven to move downwards through the air cylinder 18, then the L-shaped plate 17 drives the connecting blocks 8 to move downwards, then the pressing mechanism to move downwards, then the caulking grooves 13 on the T-shaped protective pad 12 form clamping fit with the top end of the microneedle body 5, the top end of the microneedle body 5 can be protected;

the outer wall of one side of each of the two support plates 10 is provided with a threaded hole, the inner wall of each threaded hole is in threaded connection with a screw rod 14, one end of each screw rod 14, close to the placement frame 2, is fixed with a fixture block 15, the middle upper parts of the outer walls of the two sides of the placement frame 2 are respectively provided with positioning grooves 16 which are distributed equidistantly, the fixture blocks 15 are in clamping fit with the positioning grooves 16, when the microneedle body 5 is protected by the pressing mechanism, the screw rods 14 can be rotated to drive the fixture blocks 15 to be in clamping fit with the corresponding positioning grooves 16 on the placement frame 2, so that the pressing mechanism is prevented from shaking, the stability of the pressing mechanism is improved, and the protection of the microneedle body 5 is improved;

the bottom plate 1 is located the top outer wall of placing frame 2 both sides and all is fixed with adjusting part, and adjusting part and connecting block 8, and adjusting part includes cylinder 18, and cylinder 18 is fixed in the top outer wall of bottom plate 1, and the piston rod top of cylinder 18 is fixed with L shaped plate 17, and the top and the connecting block 8 fixed connection of L shaped plate 17, and cylinder 18 is connected with the switch through the wire, and the switch is connected with microprocessor through the wire.

The working principle is as follows: when micropin body 5 stops testing, two cylinders 18 move and drive two L shaped plates 17 and descend, then two L shaped plates 17 drive two connecting blocks 8 and descend, then drive two backup pads 10 and descend, then caulking groove 13 on the T-shaped protection pad 12 forms the joint cooperation with the top of micropin body 5, can protect the top of micropin body 5, when pushing down the mechanism and protecting micropin body 5, the accessible rotates screw rod 14 and drives fixture block 15 and place the constant head tank 16 that corresponds on the frame 2 and form the joint cooperation, thereby avoid pushing down the mechanism and rock, the stability of pushing down the mechanism is improved, the protectiveness to micropin body 5 is improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A micro-needle testing frame for a PCB comprises a base plate (1), a placing frame (2) and a pressing mechanism, and is characterized in that the placing frame (2) is fixed on the outer wall of the top of the base plate (1), two partition plates (4) which are symmetrically distributed are fixed on the inner wall of the placing frame (2), the outer wall of the top of each partition plate (4) is respectively provided with a first jack and a second jack which are equidistantly distributed, the inner part of each first jack and the inner part of each second jack are respectively inserted with a same micro-needle body (5), the inner wall of the bottom of the placing frame (2) is fixed with a protection pad (3), the middle parts of the outer walls of two sides of the placing frame (2) are respectively provided with a T-shaped sliding groove (6), the inner wall of each T-shaped sliding groove (6) is slidably connected with a T-shaped sliding block (7), one end of each T-shaped sliding block (7) is fixed with a connecting block (8), and the outer wall of one side of each T-shaped sliding block (8) is fixed with a rotating shaft through a bearing, one end of each of the two rotating shafts is fixedly connected with a pressing mechanism, each pressing mechanism comprises a pressing plate (11), supporting plates (10) are fixed to the middle portions of two sides of the outer wall of the bottom of each pressing plate (11), T-shaped protective pads (12) are fixed to the outer wall of the bottom of each pressing plate (11), the T-shaped protective pads (12) are provided with caulking grooves (13) distributed at equal intervals, each caulking groove (13) is clamped with the microneedle body (5), one outer wall of each of the two supporting plates (10) is provided with a threaded hole, the inner wall of each threaded hole is screwed with a screw rod (14), one end, close to the placement frame (2), of each screw rod (14) is fixed with a clamping block (15), positioning grooves (16) distributed at equal intervals are formed in the middle upper portions of the outer walls of the two sides of the placement frame (2), and the clamping blocks (15) are in clamping fit with the positioning grooves (16), the bottom plate (1) is located the top outer wall of placing frame (2) both sides and all is fixed with adjusting part, and adjusting part and connecting block (8).

2. The microneedle test jig for the PCB of claim 1, wherein the adjusting component comprises a cylinder (18), the cylinder (18) is fixed on the outer wall of the top of the bottom plate (1), an L-shaped plate (17) is fixed at the top end of a piston rod of the cylinder (18), and the top end of the L-shaped plate (17) is fixedly connected with the connecting block (8).

3. The microneedle test fixture for PCBs according to claim 1, wherein the connection block (8) forms a sliding fit with an outer wall of the placement frame (2), and the microneedle body (5) contacts with an outer wall of a top portion of the protection pad (3).

4. A microneedle test fixture for PCB's according to claim 1, characterized in that the protective pad (3) has a size adapted to the size of the placement frame (2), and the placement frame (2) is located between two support plates (10).

5. A microneedle test fixture for PCBs according to claim 1, wherein the spacer (4) has a size adapted to the size of the placement frame (2).

6. A microneedle test fixture for PCB's according to claim 2, wherein the cylinder (18) is connected with a switch through a wire, and the switch is connected with a microprocessor through a wire.