Circuit board detection device

Abstract

The invention relates to a circuit board detection device which comprises a base, a support is arranged on the side face of the base, a workpiece base is arranged on the base, ejector pins are arranged on the base and comprise a power line ejector pin and an output ejector pin, the workpiece base is connected with the base through an elastic positioning column, and the support is connected with a handle. One end of the handle is connected with a connecting rod, the connecting rod is connected with an upper plate of the pressing plate, a side plate is arranged on one side of the upper plate, a fixing column is arranged on the inner side of the upper plate of the pressing plate, a check block is arranged on the side face of the workpiece base, a limiting switch is arranged on the base, and the common end of the limiting switch is connected with a power source. And the normally open end of the limit switch is connected with a power line thimble in the thimbles. Compared with the prior art, the method has the advantages of simplifying the circuit board detection process, improving the efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection, and more particularly to a circuit board detection device. Background Art

[0002] In the prior art, the detection of circuit boards requires manual control of the wiring and power-on of the circuit boards. The process of manual wiring is prone to wiring errors, and at the same time, the overall operation of controlling power-on and power-off is relatively complex.

[0003] Patent CN210347702U proposes a clamping tooling for PCB board testing. When the tray vertically compresses the elastic positioning post, the thimble extends into the stepped groove from the corresponding through hole and the end of the thimble is in electrical contact with the test point on the PCB board. Multiple thimbles are simultaneously electrically connected to the test points on the PCB board to realize simultaneous access of test data at multiple ports, with simple operation and high test efficiency. However, the power supply of this clamping tooling for PCB board testing needs to be controlled by a manual switch. Before the test tooling, the handle needs to be pressed first, and then the power supply is separately controlled to conduct, and the test steps are relatively complex. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit board detection device to simplify the process of circuit board detection and improve efficiency.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A circuit board detection device, the device includes a base, a bracket is provided on the side of the base, a workpiece base is provided on the base, a thimble is provided on the base, the thimble includes a power line thimble and an output thimble, the workpiece base is connected to the base through an elastic positioning post, the bracket is connected to a handle, one end of the handle is connected to a connecting rod, the connecting rod is connected to the upper plate of a pressing plate, a side plate is provided on one side of the upper plate, a fixing post is provided inside the upper plate of the pressing plate, a stopper is provided on the side of the workpiece base, a limit switch is provided on the base, the common terminal of the limit switch is connected to a power supply, and the normally open terminal of the limit switch is connected to the power line thimble in the thimble.

[0007] Further, the workpiece base is provided with thimble holes corresponding to the thimbles.

[0008] Further, the workpiece base is provided with fixing grooves corresponding to the fixing posts.

[0009] Further, the bracket is perpendicular to the base, the bracket is connected to one end of an extension rod, the other end of the extension rod is connected to one end of the handle, the other end of the handle is connected to one end of a locking block, and the other end of the locking block is connected to the connecting rod.

[0010] Further, the handle includes a handle body and a handle rod, and the handle body and the handle rod are fixedly connected.

[0011] Further, the locking block is a hexagonal prism with a through hole in the middle, and the cross-section of the locking block is a hexagonal ring.

[0012] Further, the extending rod is hinged to the handle rod of the handle.

[0013] Further, the handle rod of the handle is hinged to the locking block.

[0014] Further, the handle rod and the connecting rod are respectively connected to opposite ends of the locking block.

[0015] Further, the side plate is a transparent acrylic plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The elastic positioning post is pressed down under pressure. When the workpiece base is pressed down, the limit switch can be turned on at the same time, without the need to separately control the power supply and the power cord thimble to conduct. The operation is more convenient. At the same time, once the handle returns to the untested state, the power supply is immediately disconnected. That is to say, the power cord thimble only conducts during testing and never conducts when not tested, ensuring the safety of the test and simplifying the test steps.

[0018] (2) The side plates are provided around the pressing plate. The side plates can assist in pressing down the workpiece base 3. At the same time, the side plates play the role of installing the stoppers. When the side plates are pressed down and touch the limit switch, the normally open terminal and the common terminal of the limit switch are conducted at this time to conduct electricity. The fixed posts inside the pressing plate cooperate with the fixed slots to further determine the pressing direction, ensuring that the pressing is a precise vertical pressing without tilting, preventing the pressure of the pressing plate on the elastic positioning post from deviating and causing the thimble not to correctly insert into the thimble hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the present invention when not tested;

[0021] Figure 3 is a schematic structural diagram of the present invention when tested;

[0022] Figure 4 is another perspective schematic structural diagram of the present invention when not tested;

[0023] In the figure, there are base 1, bracket 2, workpiece base 3, elastic positioning column 4, handle 5, connecting rod 6, pressing plate 7, extending rod 8, locking block 9, upper plate 71, side plate 72, fixing column 73, handle body 51, and handle rod 52. Detailed implementation mode

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives detailed implementation manners and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0025] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] Some implementation manners of the present invention will be described in detail below with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0027] The present invention provides a circuit board detection device, and the structural diagram of the device is as Figure 1 shown. The device includes a base 1. A bracket 2 is provided on the side of the base 1. A workpiece base 3 is provided on the base 1. A thimble is provided on the base 1. The thimble includes a power line thimble and an output thimble. The workpiece base 3 is connected to the base 1 through an elastic positioning column 4. The bracket 2 is connected to a handle 5. One end of the handle 5 is connected to a connecting rod 6. The connecting rod 6 is connected to the upper plate 71 of the pressing plate 7. A side plate 72 is provided on one side of the upper plate 71. Fixing columns 73 are provided inside the upper plate 71 of the pressing plate 7. A stop block is provided on the side of the workpiece base 3. A limit switch is provided on the base 1. The common terminal of the limit switch is connected to the power supply, and the normally open terminal of the limit switch is connected to the power line thimble in the thimble.

[0028] Thimble holes corresponding to the thimbles are provided on the workpiece base 3. Fixing grooves corresponding to the fixing columns 73 are provided on the workpiece base 3. The bracket 2 is perpendicular to the base 1. One end of the bracket 2 is connected to one end of an extending rod 8. The other end of the extending rod 8 is connected to one end of the handle 5. The other end of the handle 5 is connected to one end of a locking block 9. The other end of the locking block 9 is connected to the connecting rod 6. The handle 5 includes a handle body 51 and a handle rod 52, and the handle body 51 and the handle rod 52 are fixedly connected. The locking block 9 is a hexagonal prism with a through hole in the middle, and the cross-section of the locking block 9 is a hexagonal ring. The extending rod 8 and the handle rod 52 of the handle 5 are hinged. The handle rod 52 of the handle 5 and the locking block 9 are hinged. The handle rod 52 and the connecting rod 6 are respectively connected to opposite ends of the locking block 9. The side plate 72 is a transparent acrylic plate.

[0029] In the present invention, the size of the pressing plate 7 matches that of the workpiece base 3. The structural schematic diagram during circuit board detection is as Figure 3As shown, the schematic structural diagram when the circuit board is not detected is as Figure 2 and 4 shown.

[0030] The side plate 72 is a transparent acrylic plate, and the cooperation between the internal fixing column 73 and the fixing groove can be seen.

[0031] In the present invention, when the circuit board is not detected, the handle body 51 faces the direction of the bracket 2. At this time, the locking block 9 is sleeved outside the protruding rod 8, the pressing plate 7 connected by the connecting rod 6 is suspended above the workpiece base 3, the stopper on the side of the workpiece base 3 does not touch the limit switch on the base 1, at this time the ejector pin is not connected to the circuit board in the workpiece base 3, and the power supply ejector pin is not energized either.

[0032] When the circuit board is detected, the handle body 51 is operated to move in the opposite direction of the bracket 2. At this time, the locking block 9 drives the connecting rod 6 to move downward, the pressing plate 7 is pressed down, the bottom surface of the side plate 72 of the pressing plate 7 and the fixing column 73 contact the workpiece base 3, the fixing column 73 is inserted into the fixing groove of the workpiece base 3, and together they press down the workpiece base 3. The elastic positioning column 4 is pressed down under pressure, and the power supply ejector pin and the output ejector pin extend out from the ejector pin holes at the bottom of the workpiece base 3 and contact the circuit board to be measured. At the same time, the stopper on the side of the workpiece base 3 contacts the limit switch on the base 1, the limit switch is turned on, the power supply ejector pin and the power supply are conducted, the power supply ejector pin is energized, and at the same time the output ejector pin contacts the circuit board to be measured, and the circuit board can be tested through the output of the output ejector pin.

[0033] In the present invention, when the elastic positioning column 4 is pressed down under pressure and the workpiece base 3 is pressed down, the limit switch can be turned on at the same time, without the need to separately control the power supply and the power supply ejector pin to be conducted, and the operation is more convenient. At the same time, once the handle returns to the untested state, the power supply is immediately disconnected, that is, the power supply ejector pin is only conducted during the test and is always not conducted when not tested, ensuring the safety of the test and simplifying the test steps.

[0034] In the present invention, the periphery of the pressing plate is provided with side plates. The side plates can assist in pressing down the workpiece base 3, and at the same time the side plates play a role in installing the stopper. When the side plates are pressed down, they touch the limit switch. At this time, the normally open terminal and the common terminal of the limit switch are conducted to energize. The fixing column inside the pressing plate cooperates with the fixing groove to further determine the pressing direction, ensuring that the pressing is accurately in the vertical direction without tilting, preventing the pressure of the pressing plate on the elastic positioning column from deviating and causing the ejector pin not to be correctly inserted into the ejector pin hole.

[0035] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field according to the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A circuit board detection device, characterized in that, The device includes a base (1). A bracket (2) is provided on the side of the base (1). A workpiece base (3) is provided on the base (1). A thimble is provided on the base (1), and the thimble includes a power line thimble and an output thimble. The workpiece base (3) is connected to the base (1) through an elastic positioning post (4). The bracket (2) is connected to a handle (5). One end of the handle (5) is connected to a connecting rod (6). The connecting rod (6) is connected to the upper plate (71) of a pressing plate (7). A side plate (72) is provided on one side of the upper plate (71). Fixed columns (73) are provided on the inner side of the upper plate (71) of the pressing plate (7). A stop block is provided on the side of the workpiece base (3). A limit switch is provided on the base (1). The common terminal of the limit switch is connected to a power supply, and the normally open terminal of the limit switch is connected to the power line thimble in the thimble.

2. The circuit board detection device according to claim 1, characterized in that, The workpiece base (3) is provided with thimble holes corresponding to the thimbles.

3. A circuit board detection device according to claim 1, characterized in that, The workpiece base (3) is provided with fixing grooves corresponding to the fixed columns (73).

4. A circuit board detection device according to claim 1, characterized in that, The bracket (2) is perpendicular to the base (1). One end of the bracket (2) is connected to one end of an extension rod (8). The other end of the extension rod (8) is connected to one end of the handle (5). The other end of the handle (5) is connected to one end of a locking block (9). The other end of the locking block (9) is connected to the connecting rod (6).

5. A circuit board detection device according to claim 4, characterized in that, The handle (5) includes a handle body (51) and a handle rod (52), and the handle body (51) and the handle rod (52) are fixedly connected.

6. A circuit board detection device according to claim 5, characterized in that, The locking block (9) is a hexagonal prism with a through hole in the middle, and the cross-section of the locking block (9) is a hexagonal ring.

7. A circuit board detection device according to claim 6, characterized in that, The extension rod (8) and the handle rod (52) of the handle (5) are hinged.

8. A circuit board detection device according to claim 7, characterized in that, The handle rod (52) of the handle (5) and the locking block (9) are hinged.

9. The circuit board detection device according to claim 8, characterized in that, The handle rod (52) and the connecting rod (6) are respectively connected to opposite ends of the locking block (9).

10. A circuit board detection device according to claim 1, characterized in that, The side plate (72) is a transparent acrylic plate.

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