CN212569045U

CN212569045U - NB-IoT intelligent water meter circuit board detection device

Info

Publication number: CN212569045U
Application number: CN202021371831.7U
Authority: CN
Inventors: 袁玉英; 罗永刚; 郑文欣
Original assignee: Zibo Billion Electron Co ltd
Current assignee: Zibo Billion Electron Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-02-19
Anticipated expiration: 2030-07-13

Abstract

The application belongs to the technical field of circuit board detection, and particularly relates to an NB-IoT intelligent water meter circuit board detection device, wherein an electric cylinder is arranged on a support on a base, the central axis of a push rod of the electric cylinder is vertical to the end surface of the base, one end of the push rod of the electric cylinder, which is close to the base, is provided with a detection probe mounting plate, the detection probe mounting plate is provided with a detection probe matched with a welding spot on a circuit board, the upper end of the base is also provided with a fixed plate and a movable plate which are parallel to the end surface of the base, the side edge of the fixed plate is provided with a first groove, the base is provided with a stepped articulated shaft, the central axis of the articulated shaft is vertical to the end surface of the base, the movable plate is articulated with the articulated shaft, the side edge of the movable plate is provided with a second groove, the manual point-by-point detection is avoided, and the detection is convenient and quick.

Description

NB-IoT intelligent water meter circuit board detection device

Technical Field

The application belongs to the technical field of circuit board detection, and particularly relates to an NB-IoT intelligent water meter circuit board detection device.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The NB-IoT intelligent water meter needs to detect a circuit board in the NB-IoT intelligent water meter before leaving a factory, and in the prior art, the circuit board of the NB-IoT intelligent water meter is detected, and then the NB-IoT intelligent water meter is assembled by turning to an installation production line after the circuit board is determined to be qualified.

In the prior art, the detection of circuit boards by small and medium-sized enterprises is mostly manual detection, the manual detection has the advantages that people can accurately align a detection probe to a welding spot, and the problem that the detection probe cannot accurately align the welding spot due to problems of maintenance, installation and the like of a detection device is solved.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present application provides an NB-IoT intelligent water meter circuit board detection device.

The application aims at providing an NB-IoT intelligent water meter circuit board detection device, which can be used for positioning a circuit board and detecting welding spots on the circuit board at one time by adopting a detection probe.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a NB-IoT intelligence water gauge circuit board detection device, including the base, fixedly connected with support on the base, be provided with electronic jar on the support, the perpendicular base terminal surface of the central axis of electronic jar push rod, the one end that electronic jar push rod is close to the base is provided with the test probe mounting panel, be provided with on the test probe mounting panel with circuit board on solder joint complex test probe, still be provided with fixed plate and movable plate that are on a parallel with the base terminal surface on the base, the fixed plate side is provided with first recess, be provided with the articulated shaft of echelonment on the base, the central axis of articulated shaft is perpendicular base terminal surface, the movable plate is articulated with the.

Furthermore, the bottom end face of the base is provided with bottom feet, the bottom feet are suckers, the whole detection device is fixed on a working face or a desktop through the suckers, and relative movement between the detection device and the working face or the desktop is avoided.

Further, the bearing is arranged on the hinged shaft, the inner periphery of the bearing is in interference fit with the hinged shaft, the inner ring of the bearing abuts against the step of the hinged shaft, a step-shaped bearing installation hole is formed in the movable plate, the diameter of one end, close to the base, of the bearing installation hole is larger than the diameter of one end, far away from the base, of the bearing installation hole, and the outer ring of the bearing abuts against the step of the bearing installation hole, so that stable installation and movement of the movable plate on the hinged shaft are completed.

Furthermore, the two ends of the fixing plate are provided with first protruding blocks, a first strip is arranged between the first protruding blocks, the first groove is arranged on the side face of the first protruding block, the first groove in the first protruding block only can be in angular contact with two corners of the circuit board, namely, the two corners of the circuit board are stably fixed through the first groove, and the problem that the circuit board is inconvenient to take due to the fact that the circuit board is in contact with the fixing plate too much is solved.

Further, be provided with the elastic block on the first rectangular, the blind hole has been seted up to first rectangular side, and the elastic block is fixed in the blind hole, perhaps is provided with the elasticity strip on first rectangular, and the draw-in groove has been seted up to first rectangular side, is provided with the elasticity strip in the draw-in groove, takes out from the fixed plate through elastic block or elasticity strip auxiliary circuit board.

Furthermore, second bumps are arranged at two ends of the moving plate, and the second grooves are formed in the side faces of the second bumps.

Further, this application avoids the interference that test probe used line and electronic jar used line to test probe mounting panel removed, makes whole detection device look neat and artistic simultaneously, and rectangle or convex trough is seted up to the one end of support back to the base to this application, places test probe used line and electronic jar used line in the trough.

Compared with the prior art, the beneficial effect of this application is:

1. the circuit board is fixed through the movable plate and the fixed plate, detection of welding spots on the circuit board is completed at one time through the detection probes on the detection probe mounting plate, more welding spots on the circuit board of the NB-IoT intelligent water meter can be detected at one time, manual point-by-point detection is avoided, and detection is convenient and fast.

2. This application is by the fixed plate carry out the centre gripping to an edge of circuit board, and the movable plate is again carried out the centre gripping to another edge of circuit board to form the effective centre gripping to the circuit board.

3. This application sets up first recess on first lug, sets up the second recess on the second lug for four angles of circuit board are by the centre gripping, can guarantee stable centre gripping, also make things convenient for taking of circuit board.

4. This application sets up the wire casing on one side of the support base back to, is used for placing the line for the test probe and electronic jar in the wire casing, avoids the line for the test probe and electronic jar to move with the test probe mounting panel and has the problem of interfering.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a schematic overall structure diagram of an NB-IoT intelligent water meter circuit board detection device according to the present application.

Fig. 2 is a schematic rear view structure diagram of an NB-IoT intelligent water meter circuit board detection device according to the present application.

Fig. 3 is a schematic structural diagram of the present application in which the moving plate is hinged to the hinge shaft.

Wherein: 1. the base, 2, support, 3, footing, 4, electronic jar, 5, test probe mounting panel, 6, test probe, 7, fixed plate, 8, first lug, 9, first rectangular, 10, first recess, 11, elastic block, 12, movable plate, 13, second lug, 14, second recess, 15, articulated shaft, 16, bearing, 17, bearing mounting hole, 18, trough.

The specific implementation mode is as follows:

the present application is further described with reference to the following drawings and examples, wherein the end surface refers to a horizontal surface, and the side surface refers to a vertical surface, so as to distinguish the difference between the end surface and the side surface in each structure.

Example 1

The utility model provides a NB-IoT intelligence water gauge circuit board detection device, includes base 1, and base 1 is whole circuit board detection device's basis, and in this embodiment, base 1 is a rectangle flat board, and the flat base 1 of rectangle is convenient for process, low in manufacturing cost.

A plurality of footing 3 of base 1's lower terminal surface installation, in this embodiment, the quantity of footing 3 is four, four footing 3 distribute one on four angles of base 1, footing 3 is used for contacting planar structure such as desktop or working face, through footing 3 with base 1 restriction on desktop or working face, as an implementation mode, footing 3 is a block rubber, can produce great frictional force between block rubber and desktop or the working face, make base 1 move the difficulty on desktop or working face through frictional force, in order to reduce or avoid the relative movement of base 1 and desktop or working face.

As another embodiment, the foot 3 is a suction cup, the base 1 is sucked on the table top or the working surface through the suction cup, and the base 1 is fixed on the table top or the working surface through the atmospheric pressure.

Support 2 is installed to base 1's up end, 2 lower extremes of support pass through the bolt and are in the same place with base 1 fixed connection, 2 upper ends of support are outstanding support 2 and extend along the horizontal plane, form the support 2 of "L" type of falling, electronic jar 4 of support 2 upper end salient point installation, 4 push rods of electronic jar one end is towards base 1, make the central axis of 4 push rods of electronic jar perpendicular with the up end of base 1, 4 push rods of electronic jar do the motion of vertical direction, 4 push rods of electronic jar downstream make probe 6 and the solder joint contact on the circuit board, form the route, and then detect the validity of solder joint, if can't form the route, then explain the circuit board has the problem, confirm that the circuit board is unqualified.

A probe mounting panel 5 is installed to the lower extreme of 4 push rods of electronic jar, and the connected mode of 4 push rods of electronic jar and probe mounting panel 5 is: a hole is formed in the center of the probe mounting plate 5, in this embodiment, one end of the push rod of the electric cylinder 4, which is far away from the bracket 2, is defined as the tail end of the push rod of the electric cylinder 4, the tail end of the push rod of the electric cylinder 4 penetrates through the hole in the probe mounting plate 5, and nuts are respectively mounted on the upper end surface and the lower end surface of the probe mounting plate 5, so that the two nuts clamp the probe mounting plate 5, and the fixation of the probe mounting plate 5 and the push rod of the electric cylinder 4 is.

The use of electronic jar 4 needs the electric energy, and this also must relate to the arrangement of circuit, consequently, the detection device of this application sets up special trough 18, and rectangle or convex trough 18 is seted up to the one end that base 1 was carried away from to support 2, and the electric wire that electronic jar 4 and probe 6 used all places in trough 18 to adopt the ribbon to restrict the electric wire in trough 18, avoid the electric wire too in a jumble.

The upper end face of the base 1 is further provided with a clamping device, the clamping device is used for effectively clamping a circuit board of the NB-IoT intelligent water meter, the clamping device comprises a fixing plate 7 and a moving plate 12, the lower end of the fixing plate 7 is fixed on the base 1 through a stand column, a first groove 10 is formed in the side edge of the fixing plate 7, the circuit board of the NB-IoT intelligent water meter is a rectangular plate, the edge of the circuit board can be placed in the first groove 10 of the fixing plate 7, and the first groove 10 is in clearance fit with the circuit board, but the clearance is small.

Preferably, two ends of the fixing plate 7 extend inwards along the horizontal direction to form first protrusions 8, that is, two ends of the fixing plate 7 are provided with one first protrusion 8 at each end, the first protrusions 8 protrude inwards to form a first long strip 9 between the first protrusions 8, and thus the fixing plate 7 structure with protruding two ends and a concave middle part is formed.

The first groove 10 is formed on the first bump 8, so that the first groove 10 is only in clearance fit with two corners of the circuit board, and the inconvenience of disassembling and assembling the circuit board on the detection device caused by the circuit board being clamped by the first groove 10 is avoided.

The shape of the moving plate 12 is similar to that of the fixed plate 7, the moving plate 12 is provided with second bumps 13, second strips are arranged between the second bumps 13, second grooves 14 are formed in the second bumps 13, the second grooves 14 are in clearance fit with the two remaining corners of the circuit board, in addition, the moving plate 12 rotates on the base 1, one end of the moving plate 12 is hinged to the base 1, when the moving plate 12 and the fixed plate 7 are used for positioning and clamping the circuit board, the two corners of the circuit board are placed in the first grooves 10 of the first bumps 8, then the moving plate 12 is rotated, the second grooves 14 are aligned with the two remaining corners of the circuit board, and the circuit board is fixed by the moving plate 12.

The specific matching scheme of the movable plate 12 hinged on the base 1 is as follows: set up a articulated shaft 15 on the base 1 up end, the central axis of articulated shaft 15 is perpendicular with base 1's up end, places a bearing 16 on the articulated shaft 15, and bearing 16 internal circumference and articulated shaft 15's periphery interference fit fix bearing 16 on articulated shaft 15, offer on the movable plate 12 be used for with bearing 16 complex bearing mounting hole 17, the internal circumference and the bearing 16 periphery interference fit of bearing mounting hole 17 on the movable plate 12.

In the present embodiment, the bearing 16 is preferably a double row tapered roller bearing.

In a preferred embodiment, the hinge shaft 15 is a stepped shaft, the diameter of the upper end of the hinge shaft 15 is smaller than that of the lower end of the hinge shaft 15, that is, two cylindrical coaxial shafts with different diameters are combined together, and the bearing 16 is installed at the position where the diameter of the hinge shaft 15 changes, such that the outer circumference of the inner ring of the bearing 16 abuts against the step of the hinge shaft 15.

In a preferred embodiment, the bearing mounting hole 17 of the moving plate 12 is a through hole having a step, and the diameter of the bearing mounting hole 17 near the base 1 is larger than the diameter of the bearing mounting hole 17 far from the base 1, so that the outer circumference of the outer ring of the bearing 16 abuts against the step of the bearing mounting hole 17.

In a preferred embodiment, the overall length of the second groove 14 is slightly longer than that of the first groove 10, so that the second groove 14 does not interfere with the circuit board when the moving plate 12 rotates, and the moving plate 12 plays a role in clamping and assisting in positioning mainly for fixing.

This application is for solving the smooth convenient taking off of circuit board in the recess, first rectangular 9 of fixed plate 7 sets up elastic block 11 or elastic surface towards circuit board one side, place in first recess 10 when the circuit board, and there is movable plate 12 to press from both sides the time tight to the circuit board, elastic block 11 or elastic surface are produced compression deformation by the circuit board extrusion, after movable plate 12 is rotatory, the clamping action of circuit board disappears, elastic block 11 or elastic surface have the power of recovering the deformation this moment, and then produce an outside thrust to the circuit board, the helper takes out the circuit board, the people only need adopt littleer power to take out the circuit board promptly, very laborsaving.

As an embodiment, the elastic surface adopts the rubber strip of rectangular shape, and the rubber strip is fixed on first rectangular 9 through gluing, and perhaps, the draw-in groove that holds the rubber strip is seted up to first rectangular 9, and the rubber strip is installed in the draw-in groove.

As another embodiment, the elastic blocks 11 are compression springs, the compression springs are uniformly distributed on the first strip 9, blind holes for accommodating the compression springs are formed in the first strip 9, and the compression springs are fixed in the blind holes.

When using this device to carry out the detection of circuit board, only need the manual work to take a circuit board and place in the recess between movable plate 12 and fixed plate 7, start electronic jar 4, electronic jar 4 drives whole probe mounting panel 5 downstream, make all probes 6 downstream simultaneously, the solder joint on the 6 butt joint circuit boards of probe, the completion is to the detection of solder joint on the circuit board, and then can once only accomplish the detection task, detection efficiency is high, and the device cost is lower, moreover, the steam generator is simple in structure, therefore, the manufacturing cost and maintenance cost are practiced thrift, especially adapted small and medium-sized enterprise uses.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the embodiments of the present application have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present application, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive effort by those skilled in the art.

Claims

1. The utility model provides a NB-IoT intelligence water gauge circuit board detection device which characterized in that: the device comprises a base (1), a support (2) is fixedly connected to the base (1), an electric cylinder (4) is arranged on the support (2), the central axis of a push rod of the electric cylinder (4) is vertical to the end face of the base (1), a probe mounting plate (5) is arranged at one end, close to the base (1), of the push rod of the electric cylinder (4), and a probe (6) matched with a welding spot on a circuit board is arranged on the probe mounting plate (5);

the improved structure is characterized in that the upper end face of the base (1) is further provided with a fixed plate (7) and a movable plate (12) which are parallel to the end face of the base (1), a first groove (10) is formed in the side edge of the fixed plate (7), a stepped hinged shaft (15) is arranged on the base (1), the central axis of the hinged shaft (15) is perpendicular to the end face of the base (1), the movable plate (12) is hinged to the hinged shaft (15), and a second groove (14) is formed in the side edge of the movable plate (12).

2. The NB-IoT intelligent water meter circuit board detection device as set forth in claim 1, wherein a footing (3) is disposed on a lower end surface of the base (1).

3. An NB-IoT intelligent water meter circuit board inspection device as defined in claim 2, wherein said foot (3) is a suction cup.

4. An NB-IoT intelligent water meter circuit board detection device as claimed in claim 1, wherein the hinge shaft (15) is provided with a bearing (16), the inner circumference of the bearing (16) is in interference fit with the hinge shaft (15), and the inner ring of the bearing (16) abuts against the step of the hinge shaft (15).

5. The NB-IoT intelligent water meter circuit board detection device as defined in claim 1, wherein a stepped bearing installation hole (17) is formed in the moving plate (12), a diameter of an end of the bearing installation hole (17) close to the base (1) is larger than a diameter of an end of the bearing installation hole (17) far away from the base (1), and an outer ring of the bearing (16) abuts against a step of the bearing installation hole (17).

6. An NB-IoT intelligent water meter circuit board detection device as defined in claim 1, wherein the fixing plate (7) has first protrusions (8) at two ends thereof, a first strip (9) is disposed between the first protrusions (8), and the first groove (10) is disposed at a side of the first protrusion (8).

7. An NB-IoT intelligent water meter circuit board detection device as claimed in claim 6, wherein the first strip (9) is provided with an elastic block (11), a blind hole is provided on the side of the first strip (9), and the elastic block (11) is fixed in the blind hole.

8. The detecting device for the circuit board of the NB-IoT intelligent water meter as claimed in claim 6, wherein the first strip (9) has an elastic strip thereon, and a slot is formed on a side of the first strip (9), and the elastic strip is disposed in the slot.

9. An NB-IoT intelligent water meter circuit board detection device as claimed in claim 1, wherein both ends of said moving plate (12) are respectively provided with a second bump (13), and said second groove (14) is arranged at the side of the second bump (13).

10. An NB-IoT intelligent water meter circuit board detection device as defined in claim 1, wherein a rectangular or circular arc-shaped cabling slot (18) is formed at an end of the support (2) opposite to the base (1).