CN211601803U

CN211601803U - PCB (printed circuit board) testing fixture

Info

Publication number: CN211601803U
Application number: CN201922346593.8U
Authority: CN
Inventors: 龚健
Original assignee: Shanghai Beizhen Electronic Technology Co ltd
Current assignee: Shanghai Beizhen Electronic Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-29
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses an utensil is examined to PCB board, comprises a workbench, the supporting leg has all been welded to four corners of workstation bottom outer wall, there is the electromagnetic plate top outer wall of workstation through bolted connection, and the top outer wall of electromagnetic plate has placed a plurality of iron plate, the top outer wall of iron plate is opened there is the thread groove, and the inner wall threaded connection of thread groove has the nut, the bottom outer wall of nut bonds and has last gasket, the top outer wall of iron plate bonds and has lower gasket. The utility model discloses when changing the PCB board, can break off power supply with the electromagnetic plate for the iron plate breaks away from the electromagnetic plate more easily, and convenient the change more, the result of use is better, during the detection, the measuring stick that is located on the lifter plate can contact with the PCB board, and the device part on the PCB board can be with partial measuring stick jack-up, then through the scale difference on the measuring stick alright with measure the device height fast, compare in the tradition and examine a measuring speed faster, have more the practicality.

Description

PCB (printed circuit board) testing fixture

Technical Field

The utility model relates to a PCB technical field especially relates to a PCB examines utensil.

Background

The PCB board, also known as printed circuit board, be the provider of electronic components electrical connection, the device on the PCB board is through welding, the device height after the welding compares with former height and has the deviation, PCB board and heat-conducting plate assembly back, because the deviation of device height on the PCB board can lead to the device to cross the problem of contact or lack of contact with the boss on the heat-conducting plate, cross the contact can have prestressing force on the device, reduce the reliability of device, lack of contact can lead to the device can not effectively contact with the heat conduction boss on the heat-conducting plate, the heat that the device during operation produced can not effectively transmit to the heat-conducting plate, so need highly detect the device on the PCB board.

Through retrieval, chinese patent publication No. CN207231433U discloses a PCB inspection tool, which comprises a horizontal table, and further comprises a plurality of magnetic members magnetically adsorbed on the horizontal table, wherein the upper parts of the magnetic members are provided with screws and nuts corresponding to the mounting holes of the PCB. A PCB board examines utensil in above-mentioned patent exists certain not enough: in the use, although can fix and detect the not unidimensional PCB board, adopt magnet and the adsorbed mode of horizontal stand, magnet is difficult to take off from the horizontal stand when leading to changing the PCB board very easily, very influences work efficiency, consequently, a PCB board examines utensil and solves above-mentioned problem urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the PCB board that provides examines utensil.

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

the utility model provides a PCB examines utensil, includes the workstation, the supporting leg has all been welded to four corners of workstation bottom outer wall, there is the electromagnetic plate top outer wall of workstation through bolted connection, and the top outer wall of electromagnetic plate has placed a plurality of iron plate, the top outer wall of iron plate is opened there is the thread groove, and the inner wall threaded connection of thread groove has the nut, the bottom outer wall of nut bonds and has last gasket, the top outer wall of iron plate bonds and has lower gasket, and has connect the PCB board down between gasket and the last gasket.

As a further aspect of the present invention: four corners of the outer wall of the top of the workbench are welded with vertical rods, and the outer wall of the top of each vertical rod is welded with a stop block.

As a further aspect of the present invention: the outer wall of pole setting has cup jointed the spring, and the outer wall sliding connection of pole setting has the lifter plate.

As a further aspect of the present invention: the outer wall of the top of the lifting plate is provided with a plurality of rows of mounting holes which are distributed equidistantly, the inner wall of each mounting hole is bonded with a rubber ring, the inner wall of each rubber ring is connected with a measuring rod in a sliding mode, and the outer wall of each measuring rod is marked with scales.

As a further aspect of the present invention: the electromagnetic plate is connected with a switch through a wire, and the switch is connected with a power supply through a wire.

As a further aspect of the present invention: the utility model discloses a writing board, including workstation, stand, spout, limiting plate, writing board, handle, mounting hole, mounting.

As a further aspect of the present invention: the blackboard eraser is bonded on the inner wall of the top of the placing groove, and the outer wall of the bottom of the blackboard eraser is in contact with the outer wall of the top of the writing board.

The utility model has the advantages that:

1. through the arranged electromagnetic plate, the iron block, the nut, the upper gasket and the lower gasket, the nut can be sleeved on the mounting hole on the PCB and then rotates into the iron block, the iron block can be adsorbed on the electromagnetic plate, the effect of quickly fixing the PCB can be achieved, the PCB with different sizes can be fixed, flexibility is achieved, the lower gasket positioned on the iron block and the upper gasket positioned on the nut can achieve the protection effect on the PCB, the PCB is prevented from being damaged by clamping, meanwhile, when the PCB is replaced, the electromagnetic plate can be powered off, the iron block can be separated from the electromagnetic plate more easily, replacement is more convenient, and the using effect is better;

2. through the arranged spring, the vertical rod, the lifting plate, the measuring rod and the rubber ring, during detection, the lifting plate can be pressed, so that the spring on the vertical rod is compressed, the measuring rod on the lifting plate can be contacted with the PCB, and a part of the measuring rod can be jacked up by a device part on the PCB, so that the measuring rod generates a height difference, and then the height of the device can be quickly measured through a scale difference value on the measuring rod, so that the device is higher in measuring speed and higher in practicability compared with a traditional detection tool;

3. through clipboard, handle and the blackboard eraser that sets up, hold the handle and can take out the clipboard, conveniently take notes measured data, and when will erasing data, can make a round trip to draw the clipboard for the clipboard contacts with the blackboard eraser, can erase data fast, and it is more convenient to use.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a PCB inspection fixture in embodiment 1;

fig. 2 is a schematic overall structure diagram of a PCB inspection fixture provided in embodiment 1;

fig. 3 is a schematic front view structure diagram of the PCB inspection fixture in embodiment 2.

In the figure: 1 workstation, 2 supporting legs, 3 electromagnetism boards, 4 iron plate, 5 nuts, 6 lower gasket, 7PCB boards, 8 upper gasket, 9 pole settings, 10 measuring sticks, 11 rubber circle, 12 lifter plate, 13 dog, 14 springs, 15 clipboards, 16 limiting plates, 17 blackboard eraser, 18 handholds.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, an utensil is examined to PCB board, including workstation 1, supporting leg 2 has all been welded to four corners of 1 bottom outer wall of workstation, there is electromagnetic plate 3 top outer wall of workstation 1 through bolted connection, and a plurality of iron plate 4 have been placed to electromagnetic plate 3's top outer wall, the thread groove has been opened to iron plate 4's top outer wall, and the inner wall threaded connection of thread groove has nut 5, nut 5's bottom outer wall bonds and has last gasket 8, iron plate 4's top outer wall bonds and has lower gasket 6, and it has PCB board 7 to press from both sides between lower gasket 6 and the last gasket 8.

Wherein, pole setting 9 has all been welded to four corners of 1 top outer wall of workstation, and the top outer wall welding of pole setting 9 has dog 13, spring 14 has been cup jointed to the outer wall of pole setting 9, and the outer wall sliding connection of pole setting 9 has lifter plate 12, the mounting hole that has multirow equidistance to distribute is opened to the top outer wall of lifter plate 12, and the inner wall bonding of mounting hole has rubber circle 11, the inner wall sliding connection of rubber circle 11 has measuring stick 10, the outer wall mark of measuring stick 10 has the scale, electromagnetic plate 3 is connected with the switch through the wire, and the switch is connected with the power through the wire.

The working principle is as follows: when the device is used, the nut 5 can be sleeved on the mounting hole on the PCB 7 and then rotates to enter the iron block 4, the iron block 4 can be adsorbed on the electromagnetic plate 3, the effect of quickly fixing the PCB 7 can be achieved, the PCB 7 with different sizes can be fixed, flexibility is good, the lower gasket 6 on the iron block 4 and the upper gasket 8 on the nut 5 can achieve the protection effect on the PCB 7, the PCB 7 is prevented from being damaged by clamping, meanwhile, when the PCB 7 is replaced, the electromagnetic plate 3 can be powered off, the iron block 4 can be separated from the electromagnetic plate 3 more easily, replacement is more convenient, the using effect is good, when in detection, the lifting plate 12 can be pressed, the spring 14 on the vertical rod 9 is compressed, the measuring rod 10 on the lifting plate 12 can be contacted with the PCB 7, and part of devices on the PCB 7 can jack up part of the measuring rod 10, so that the measuring rod 10 generates height difference, then through the scale difference on the measuring stick 10 alright measure the device height fast, compare in the tradition examine a measuring speed faster, have more the practicality.

Example 2

Referring to fig. 3, this embodiment compares in embodiment 1, and one side outer wall that still includes workstation 1 opens there is the standing groove, and the both sides inner wall of standing groove has all opened the spout, and the inner wall sliding connection of spout has limiting plate 16, and the welding of one side outer wall of limiting plate 16 has clipboard 15, and the welding of one side outer wall of clipboard 15 has handle 18, and the top inner wall of standing groove bonds has eraser 17, and the bottom outer wall of eraser 17 and the top outer wall of clipboard 15 contact.

The working principle is as follows: when the eraser is used, the writing board 15 can be drawn out by holding the handle 18, so that measured data can be conveniently recorded, and when data needs to be erased, the writing board 15 can be drawn back and forth, so that the writing board 15 is in contact with the eraser 17, the data can be erased quickly, and the eraser is more convenient to use.

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. The utility model provides a PCB examines utensil, includes workstation (1), its characterized in that, supporting leg (2) have all been welded to four corners of workstation (1) bottom outer wall, there are electromagnetic plate (3) top outer wall of workstation (1) through bolted connection, and a plurality of iron plate (4) have been placed to the top outer wall of electromagnetic plate (3), the top outer wall of iron plate (4) is opened there is the thread groove, and the inner wall threaded connection of thread groove has nut (5), the bottom outer wall of nut (5) bonds and has last gasket (8), the top outer wall of iron plate (4) bonds and has lower gasket (6), and has had PCB board (7) to press from both sides between gasket (6) and last gasket (8) down.

2. The PCB testing fixture according to claim 1, wherein the vertical rods (9) are welded at four corners of the outer wall of the top of the workbench (1), and the stop blocks (13) are welded at the outer wall of the top of the vertical rods (9).

3. The PCB testing fixture according to claim 2, wherein a spring (14) is sleeved on the outer wall of the upright (9), and a lifting plate (12) is slidably connected to the outer wall of the upright (9).

4. The PCB testing fixture according to claim 3, wherein a plurality of rows of mounting holes are formed in the outer wall of the top of the lifting plate (12) and are distributed equidistantly, a rubber ring (11) is bonded to the inner wall of each mounting hole, a measuring rod (10) is connected to the inner wall of each rubber ring (11) in a sliding mode, and scales are marked on the outer wall of each measuring rod (10).

5. The PCB testing fixture according to claim 1, wherein the electromagnetic plate (3) is connected with a switch through a lead, and the switch is connected with a power supply through a lead.

6. The PCB testing fixture according to any one of claims 1-5, wherein a placing groove is formed in the outer wall of one side of the workbench (1), sliding grooves are formed in the inner walls of the two sides of the placing groove, a limiting plate (16) is connected to the inner wall of each sliding groove in a sliding mode, a writing board (15) is welded to the outer wall of one side of each limiting plate (16), and a handle (18) is welded to the outer wall of one side of each writing board (15).

7. The PCB testing fixture according to claim 6, wherein the eraser (17) is adhered to the top inner wall of the placement groove, and the bottom outer wall of the eraser (17) is in contact with the top outer wall of the writing board (15).