Port switching tool for testing printed board assembly

Abstract

The utility model discloses a port switching tool for testing a printed board assembly, which comprises a base, a test piece mounting seat, a switching plate, an elastic contact piece, a transverse mounting plate, a connecting rod, a rotating handle, a handle mounting plate, a guide column and a vertical mounting plate, the rotating handle is rotatably installed on the vertical installation plate through the handle installation plate, the connecting rod is rotatably connected with the rotating handle and the transverse installation plate, the adapter plate is located below the transverse installation plate and connected with the transverse installation plate, and elastic contacts of the multiple elastic contact pieces installed below the adapter plate are connected with the wire. And the guide columns penetrate through the guide through holes in the transverse mounting plate. According to the utility model, the plurality of elastic contacts are contacted with the plurality of circular plated-through holes on the test piece, so that the signal leading-out function of the test port is realized, many defects caused by the fact that the signal leading-out function of the test port is realized through welding are avoided, the operation is simple, the test cost is reduced, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of auxiliary devices for printed board assembly test, in particular to a kind of port adapter tool for printed board assembly test. BACKGROUND

[0002] Printed board assembly is the assembly formed after electronic component is installed on printed board (PCB), and is called PCBA, and is commonly used in power supply product.The test of printed board assembly is an important link in power supply product production, and the basic method of printed board assembly test is to use various methods to lead out the test port signal on printed board assembly, and to read using specific test instrument, to judge whether the working state of printed board assembly is normal.

[0003] In order to complete the test of printed board assembly, a plurality of specific test ports need to be set on the printed board.In general, the test port is mostly a patch pad, and the signal leading-out mode is to weld a wire on the patch pad, and connect the wire with the test instrument.But in the use environment of high vibration and high impact, the welding point between the patch pad and the wire is easy to crack, so a circular metallized hole is often used instead of the patch pad as the test port to improve the reliability of the welding point and meet the application requirements in the use environment of high vibration and high impact.

[0004] For the printed board assembly with circular metallized hole as test port, the traditional test method mostly uses the mode of welding test signal line with circular metallized hole or pressing test signal line on circular metallized hole by artificial, which has the following defects: the mode of welding test signal line with circular metallized hole not only takes time and effort, but also needs to be de-soldered after test, and residual tin is easy to be left in the circular metallized hole on printed board after de-soldering, which may cause other risks if the circular metallized hole needs to be assembled subsequently, and the repeated welding of test signal line is easy to be damaged;the mode of pressing test signal line on circular metallized hole by artificial is easy to cause poor contact during pressing, which may reduce test reliability, and when multiple test ports need to lead out signal simultaneously, this method is difficult to operate, and needs to frequently adjust test equipment, which increases test cost and time. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the above problems, and provides a kind of port adapter tool for printed board assembly test, which is convenient for quick and reliable connection of test port.

[0006] The utility model realizes the above-mentioned purpose by the following technical solutions:

[0007] A port adapter tool for printed board assembly testing, comprising a base, a testing piece mounting seat, an adapter plate, elastic contact pieces, a horizontal mounting plate, a connecting rod, a rotating handle, a handle mounting plate, guide posts and a vertical mounting plate, the lower end of the testing piece mounting seat and the lower end of the vertical mounting plate are respectively mounted on the upper surface of the base, the handle mounting plate is mounted on the vertical mounting plate, the rotating handle is rotatably mounted on the handle mounting plate, the upper end of the vertical connecting rod is rotatably connected with the middle section of the rotating handle, the lower end of the connecting rod is rotatably connected with the horizontal mounting plate, the horizontal adapter plate is located below the horizontal mounting plate and is connected with each other, the conductive elastic contact pieces comprise elastic contact heads, one end of the conductive elastic contact pieces is electrically connected with wires, a plurality of the elastic contact pieces are respectively mounted on the lower surface of the adapter plate and are located above the testing piece mounting seat, two guide posts are respectively located on both sides of the connecting rod and respectively pass through guide through holes on the horizontal mounting plate, the lower end of the guide post is connected with the base and the upper end is connected with the vertical mounting plate.

[0008] As a preference, in order to facilitate the reliable electrical connection of the elastic contact head with the circular metalized hole on the testing piece and facilitate the installation of the elastic contact head and make it have a downward elastic force, the elastic contact piece further comprises a metal cylinder and a compression spring, the lower end of the elastic contact head is hemispherical, the upper end of the elastic contact head is mounted in the lower part of the metal cylinder and cannot be separated downward from the metal cylinder, the position above the elastic contact head in the metal cylinder is provided with the vertical compression spring, the lower end of the compression spring abuts against the elastic contact head to make it have a downward elastic force, and the metal cylinder is electrically connected with one end of the wire.

[0009] As a preference, in order to facilitate the electrical connection between the metal cylinder and the wire, a plurality of vertical metalized through holes are provided on the adapter plate, the upper ends of a plurality of the metal cylinders are respectively located in a plurality of the metalized through holes and are electrically connected, the hole walls of a plurality of the metalized through holes are respectively electrically connected with one end of a plurality of the wires, and the other end of a plurality of the wires is connected with a connector.

[0010] As a preference, in order to facilitate processing and assembly, and to facilitate quick disassembly of the adapter plate, the adapter plate is connected with the horizontal mounting plate through a plurality of screws and a plurality of connecting columns, a plurality of printed lines are provided on the adapter plate, a plurality of the printed lines are respectively electrically connected with the hole walls of one end of a plurality of the metalized through holes, a plurality of the wires are respectively welded with a plurality of the printed lines, and a plurality of the wires are combined into a cable.

[0011] As preferred, in order to realize the transmission function between the rotating handle and the horizontal installation plate more reliably through the connecting rod, and in order to facilitate the self-locking function of the horizontal installation plate after the rotating handle is pressed downward, the upper surface of the horizontal installation plate is connected with a vertical connecting column, and the lower end of the connecting rod is rotationally connected with the upper end of the connecting column.

[0012] As preferred, in order to facilitate the installation of the rotating handle and the better limiting of the connecting column, the handle installation plate is "L" shaped, the vertical plate of the handle installation plate is connected with the vertical installation plate, the rotating handle is rotationally installed on the vertical plate of the handle installation plate and located above the horizontal plate of the handle installation plate, and the connecting column passes through the corresponding through hole on the horizontal plate of the handle installation plate.

[0013] As preferred, in order to facilitate the quick disassembly and assembly of the test piece installation seat and facilitate the reliable limiting of the test piece, the test piece installation seat is installed on the base through a screw, and the upper end of the test piece installation seat is provided with an installation groove.

[0014] As preferred, in order to realize more accurate and smooth guiding function, a linear bearing is installed in the guiding through hole on the horizontal installation plate, and the guiding column passes through the center through hole of the corresponding linear bearing.

[0015] As preferred, in order to facilitate the installation of the vertical installation plate and the guiding column, the lower end of the vertical installation plate is "T" shaped, the lower end of the guiding column is arranged in a vertical blind hole of a connecting seat, the connecting seat is installed on the lower end horizontal plate of the vertical installation plate, the upper end of the guiding column passes through a vertical through hole of a clamping seat, and the clamping seat is installed on the upper part of the vertical installation plate.

[0016] The utility model discloses the beneficial effect lies in:

[0017] The utility model discloses a test port adapter tool for printed board assembly, which comprises a base, a test piece installation seat, an adapter plate, elastic contact pieces, a horizontal installation plate, a connecting rod, a rotating handle, a handle installation plate, a guiding column and a vertical installation plate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the port adapter tool for printed board assembly test application of the utility model;

[0019] Figure 2 is Figure 1 Enlarged view of "A" in the middle. DETAILED DESCRIPTION

[0020] The utility model will be further described below in combination with the drawings:

[0021] As Figure 1 and Figure 2 The utility model discloses a port adapter tool for printed board assembly test, which comprises a base 1, a test piece mounting seat 18, an adapter plate 14, an elastic contact 13, a horizontal mounting plate 12, a connecting rod 8, a rotating handle 9, a handle mounting plate 7, a guide column 5 and a vertical mounting plate 2, the lower end of the test piece mounting seat 19 and the lower end of the vertical mounting plate 2 are respectively installed on the upper surface of the base 1, the handle mounting plate 7 is installed on the vertical mounting plate 2, the rotating handle 9 is rotatably installed on the handle mounting plate 7, the upper end of the vertical connecting rod 8 is rotatably connected with the middle section of the rotating handle 9, the lower end of the connecting rod 8 is rotatably connected with the horizontal mounting plate 12, the horizontal adapter plate 14 is located below the horizontal mounting plate 12 and is connected with each other, the conductive elastic contact 13 comprises an elastic contact 132, the elastic contact 132 is electrically connected with one end of a wire (referring to the cable 11 in the drawing, a plurality of wires are combined together to form the cable 11), a plurality of elastic contacts 13 are respectively installed on the lower surface of the adapter plate 14 and are located above the test piece mounting seat 18, two guide columns 5 are respectively located on the two sides of the connecting rod 8 and respectively pass through the guide through holes on the horizontal mounting plate 12, the lower end of the guide column 5 is connected with the base 1, and the upper end is connected with the vertical mounting plate 2.

[0022] As Figure 1 and Figure 2 The utility model discloses a port adapter tool for printed board assembly test, which comprises a base 1, a test piece mounting seat 18, an adapter plate 14, an elastic contact 13, a horizontal mounting plate 12, a connecting rod 8, a rotating handle 9, a handle mounting plate 7, a guide column 5 and a vertical mounting plate 2, the lower end of the test piece mounting seat 19 and the lower end of the vertical mounting plate 2 are respectively installed on the upper surface of the base 1, the handle mounting plate 7 is installed on the vertical mounting plate 2, the rotating handle 9 is rotatably installed on the handle mounting plate 7, the upper end of the vertical connecting rod 8 is rotatably connected with the middle section of the rotating handle 9, the lower end of the connecting rod 8 is rotatably connected with the horizontal mounting plate 12, the horizontal adapter plate 14 is located below the horizontal mounting plate 12 and is connected with each other, the conductive elastic contact 13 comprises an elastic contact 132, the elastic contact 132 is electrically connected with one end of a wire (referring to the cable 11 in the drawing, a plurality of wires are combined together to form the cable 11), a plurality of elastic contacts 13 are respectively installed on the lower surface of the adapter plate 14 and are located above the test piece mounting seat 18, two guide columns 5 are respectively located on the two sides of the connecting rod 8 and respectively pass through the guide through holes on the horizontal mounting plate 12, the lower end of the guide column 5 is connected with the base 1, and the upper end is connected with the vertical mounting plate 2.

[0023] In order to make the elastic contact 132 reliably electrically connected with the circular metalized hole 17 on the test piece 15 (i.e. the printed board assembly to be tested) and facilitate the installation of the elastic contact 132 and make it have downward elastic force, the elastic contact 13 further comprises a metal cylinder 131 and a compression spring (not visible in the drawing, but easy to understand), the lower end of the elastic contact 132 is hemispherical, the upper end of the elastic contact 132 is installed in the lower part of the metal cylinder 131 and cannot be separated downward from the metal cylinder 131 (an annular retaining ring can be arranged on the inner wall of the lower end of the metal cylinder 131 to realize this function, which is a conventional adaptive structure), a vertical compression spring is arranged above the elastic contact 132 in the metal cylinder 131, the lower end of the compression spring abuts against the elastic contact 132 to make it have downward elastic force, and the metal cylinder 131 is electrically connected with one end of the wire. The upper end of the compression spring can abut against the retaining ring on the upper end of the metal cylinder 131, or a screw plug can be installed on the inner wall of the upper end of the metal cylinder 131 to position the compression spring, which is specifically determined according to requirements, and is a conventional adaptive structure.

[0024] In order to facilitate the electrical connection between the metal cylinder 131 and the wire, the adapter plate 14 is provided with a plurality of vertical metalized through holes 19, the upper ends of the plurality of metal cylinders 131 are respectively placed in the plurality of metalized through holes 19 and are electrically connected, the upper end of the metal cylinder 131 in the figure is a metal column with reduced diameter, so as to facilitate cooperation with the metalized through hole 19, the hole wall of the plurality of metalized through holes 19 is respectively electrically connected with one end of the plurality of wires (the connection mode is invisible in the figure), the other end of the plurality of wires is connected with a connector (not marked in the figure).

[0025] In order to facilitate processing and assembly, and at the same time to facilitate quick disassembly of the adapter plate 14, the adapter plate 14 is connected with the transverse mounting plate 12 through a plurality of screws and a plurality of connecting columns 16, the adapter plate 14 is provided with a plurality of printed wires (invisible in the figure, which is a conventional structure), the plurality of printed wires are respectively electrically connected with the hole wall of one end of the plurality of metalized through holes 19, the plurality of wires are respectively welded with the plurality of printed wires, and the plurality of wires are combined into a cable 11 (flat cable in the figure).

[0026] In order to more reliably realize the transmission function between the rotating handle 9 and the transverse mounting plate 12 through the connecting rod 8, and at the same time to facilitate the self-locking function of the transverse mounting plate 12 after the rotating handle 9 is pressed downward, the upper surface of the transverse mounting plate 12 is connected with a vertical connecting column 10, the connecting rod 8 is an arc-shaped rod and its lower end is rotationally connected with the upper end of the connecting column 10.

[0027] In order to facilitate the installation of the rotating handle 9 and better limit the connecting column 10, the handle mounting plate 7 is "L" shaped and its vertical plate is connected with the vertical mounting plate 2, the rotating handle 9 is rotationally installed on the vertical plate of the handle mounting plate 7 and is located above the horizontal plate of the handle mounting plate 7, and the connecting column 10 passes through the corresponding through hole on the horizontal plate of the handle mounting plate 7.

[0028] In order to facilitate quick disassembly and reliable limiting of the test piece mounting seat 18, the test piece mounting seat 18 is installed on the base 1 through screws, the upper end of the test piece mounting seat 18 is provided with a mounting recess, and in use, the test piece 15 is placed in the mounting recess.

[0029] In order to realize more accurate and smooth guiding function, a linear bearing 6 is installed in the guiding through hole on the transverse mounting plate 12, and the guiding column 5 passes through the center through hole of the corresponding linear bearing 6.

[0030] In order to facilitate the installation of the vertical mounting plate 2 and the guiding column 5, the lower end of the vertical mounting plate 2 is "T" shaped, the lower end of the guiding column 5 is placed in the vertical blind hole of the connecting seat 3, the connecting seat 3 is installed on the lower end horizontal plate of the vertical mounting plate 2, the upper end of the guiding column 5 passes through the vertical through hole of the clamping seat 4, and the clamping seat 4 is installed on the upper part of the vertical mounting plate 2.

[0031] As Figure 1 and Figure 2 shown, in use, the measured piece 15 is installed in the installation groove of the test piece mounting seat 18 to limit the measured piece 15, then the rotating handle 9 is pressed down to rotate downward, the plurality of contact pieces 13 are driven to move downward through the connecting rod 8, the connecting column 10 and the transverse mounting plate 12, until the metal contacts 132 of the plurality of contact pieces 13 are in close contact with the upper end hole walls of the plurality of circular metalized holes 17 on the measured piece 15 respectively, at this time the connecting rod 10 passes through the "dead point" and is in the self-locking state, the rotating handle 9 is released, the connector is connected to the corresponding test instrument, and then the measured piece 15 can be tested. After the test is completed, the rotating handle 9 is lifted up to rotate upward, and then the measured piece 15 can be released.

[0032] When different models and sizes of measured pieces 15 need to be tested, only the test piece mounting seat 18 and the adapter plate 14 of the corresponding size need to be replaced, and the test process is the same as above, which will not be repeated.

[0033] The above embodiments are only preferred embodiments of the present application, and are not a limitation on the technical solutions of the present application. Any technical solution that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the protection scope of the patent of the present application.

Claims

1. A port adapter tool for printed board assembly testing, comprising a base, characterized by: The utility model also includes a test piece mounting seat, an adapter plate, an elastic contact, a horizontal mounting plate, a connecting rod, a rotating handle, a handle mounting plate, a guide column and a vertical mounting plate, the lower end of the test piece mounting seat and the lower end of the vertical mounting plate are respectively mounted on the upper surface of the base, the handle mounting plate is mounted on the vertical mounting plate, the rotating handle is rotatably mounted on the handle mounting plate, the upper end of the vertical connecting rod is rotatably connected with the middle section of the rotating handle, the lower end of the connecting rod is rotatably connected with the horizontal mounting plate, the horizontal adapter plate is located below the horizontal mounting plate and is connected with each other, the conductive elastic contact includes an elastic contact head, one end of the elastic contact head is electrically connected with a wire, a plurality of elastic contact heads are respectively mounted on the lower surface of the adapter plate and are located above the test piece mounting seat, two guide columns are respectively located on both sides of the connecting rod and respectively pass through guide through holes on the horizontal mounting plate, the lower end of the guide column is connected with the base and the upper end is connected with the vertical mounting plate.

2. The port adapter tool for printed board assembly testing of claim 1, wherein: The elastic contact further includes a metal cylinder and a compression spring, the lower end of the elastic contact head is hemispherical, the upper end of the elastic contact head is mounted in the lower part of the metal cylinder and cannot be separated downward from the metal cylinder, the metal cylinder is provided with the vertical compression spring above the elastic contact head, the lower end of the compression spring tightly presses the elastic contact head to make it have downward elastic force, and the metal cylinder is electrically connected with one end of the wire.

3. The port adapter tool for printed board assembly testing of claim 2, wherein: A plurality of vertical metalized through holes are arranged on the adapter plate, the upper ends of a plurality of metal cylinders are respectively arranged in a plurality of metalized through holes and are electrically connected, the hole walls of a plurality of metalized through holes are respectively electrically connected with one end of a plurality of wires, and the other end of the plurality of wires is connected with a connector.

4. The port adapter tool for printed board assembly testing of claim 3, wherein: The adapter plate is connected with the horizontal mounting plate through a plurality of screws and a plurality of connecting columns, a plurality of printed lines are arranged on the adapter plate, one end of a plurality of metalized through holes is electrically connected with a plurality of printed lines respectively, a plurality of wires are welded with a plurality of printed lines respectively, and the plurality of wires are combined into a cable.

5. The port adapter tool for printed board assembly testing according to any of claims 1-4, characterized in that: The upper surface of the horizontal mounting plate is connected with a vertical connecting column, the connecting rod is an arc-shaped rod, and the lower end of the connecting rod is rotatably connected with the upper end of the connecting column.

6. The port adapter tool for printed board assembly testing of claim 5, wherein: The handle mounting plate is "L"-shaped, the vertical plate of the handle mounting plate is connected with the vertical mounting plate, the rotating handle is rotatably mounted on the vertical plate of the handle mounting plate and is located above the horizontal plate of the handle mounting plate, and the connecting column passes through the corresponding through hole on the horizontal plate of the handle mounting plate.

7. The port adapter tool for printed board assembly testing according to any one of claims 1-4, wherein: The test piece mounting seat is mounted on the base through a screw, and the upper end of the test piece mounting seat is provided with a mounting groove.

8. The port adapter tool for printed board assembly testing according to any one of claims 1-4, wherein: Linear bearings are mounted in the guide through holes on the horizontal mounting plate, and the guide columns pass through the center through holes of the corresponding linear bearings.

9. The port adapter tool for printed board assembly testing according to any one of claims 1-4, wherein: The lower end of the vertical mounting plate is "T"-shaped, the lower end of the guide column is arranged in a vertical blind hole of a connecting seat, the connecting seat is mounted on the lower end horizontal plate of the vertical mounting plate, the upper end of the guide column passes through a vertical through hole of a clamping seat, and the clamping seat is mounted on the upper part of the vertical mounting plate.

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