Circuit board debugging device

Abstract

The utility model discloses a circuit board debugging device which comprises an upper test board, a lower test board and probes. A circuit board to be tested is placed between the upper test board and the lower test board; the upper test board and the lower test board are provided with probe holes, and the probes are inserted into the probe holes according to the point position condition of the circuit board to be tested. The upper test plate is also provided with a guide pin sleeve and a quick-acting screw, and the lower test plate is also provided with a guide pin and a height limiting column. According to the utility model, a welding-free installation and connection process mode is adopted, so that the quality risk problems of damage to a debugging resistor bonding pad and surrounding devices and the like caused by manual debugging and connection by using an electric soldering iron are solved, the product quality is improved, the use pressure of personnel and equipment is effectively relieved, the debugging time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of circuit board testing, in particular to a circuit board debugging device. Background Art

[0002] The debugging connection of electronic circuit board products currently adopts the process of manual soldering with a soldering iron, so that one end of the debugging line is connected to the debugging resistor pad on the circuit board, and the other end is connected to the adjustable resistor device (or device). The electronic circuit board product adjusts or selects the corresponding adjustable resistor device (or device) according to the technical index requirements. After the parameters are matched, the resistance is determined. However, the conditions that need to be met by the manual soldering debugging method in actual production applications are complex, and there are many problems.

[0003] First of all, it is necessary to strengthen the job training, assessment and related management of the welding skill level of the debugging personnel to ensure that the skill level of the debugging personnel meets the work requirements; it is necessary to prepare welding equipment according to the production progress and quantity of the products to ensure the use of production tools. Secondly, due to the limitations of the external dimensions, spatial layout and PCB wiring rules, most electronic circuit board products have compact distribution of structural parts and components on the printed board, and the spacing between the component pin pads is small. The manual welding process may cause damage to the surrounding devices; the electronic circuit board debugging process needs to complete the operation steps of welding, desoldering, and repairing solder joints. Repeated use of soldering irons to contact the debugging resistor pads can easily cause pad damage; the debugging process uses manual welding, and welding equipment needs to be set up at the debugging site. There is a risk of introducing tin slag and other redundant materials during welding and desoldering; finally, electronic circuit boards are mass-produced, and the debugging process uses manual welding, which increases personnel costs and debugging work time; quality problems caused by welding during the debugging process need to be located and analyzed in a timely manner, and effective process measures should be taken for closed-loop processing.

[0004] In summary, manual soldering iron welding has the limitations of low efficiency, increased labor costs, and extended overall debugging cycle in the debugging and connection of electronic circuit board products. Utility Model Content

[0005] The utility model aims to provide a circuit board debugging device to overcome the shortcomings of the prior art, such as low efficiency, increased labor costs, and prolonged overall debugging cycle.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A circuit board debugging device includes an upper test board, a lower test board, and probes. A circuit board to be tested is placed between the upper test board and the lower test board. Probe holes are opened on the upper test board and the lower test board according to the positions of the debugging pads of different circuit boards to be tested. One end of the probe is a front concave part, and the other end is the tail end. The probe is inserted into the probe hole according to the position points of the circuit board to be tested. A guide pin sleeve and a quick-action screw are also installed on the upper test board, and a guide pin and a height-limiting column are installed on the lower test board. One end of the guide pin is installed on the lower test board, and the other end has a protruding part. One end of the guide pin sleeve is installed on the upper test board, and the other end has a hole that matches the protruding part of the guide pin. One end of the height-limiting column is installed on the lower test board, and the other end has a threaded hole. One end of the quick-action screw is a protrusion that matches the height-limiting column, and the other end is a handle. Align the circuit board to be tested with the guide pin and place it between the upper test board and the lower test board. Insert the probe into the corresponding probe hole according to the position points of the circuit board to be tested.

[0008] Further, a rotating arm is also provided on the upper test board, and a mounting seat is also provided on the lower test board. The rotating arm and the mounting seat are rotatably installed together through a rotating shaft. Thus, the upper test board and the lower test board can be opened and closed like a flip cover.

[0009] Further, after confirming the position points of the circuit board to be tested, place a washer on the guide pin and place a gasket at the position where it contacts the circuit board to be tested on the mounting seat.

[0010] Further, the thickness of both the washer and the gasket is 1 mm.

[0011] Further, the front concave part of the probe contacts the circuit board to be tested. The front concave part of the probe is telescopically arranged, and the tail end of the probe is connected to an external test device or apparatus.

[0012] Further, after confirming the position points of the circuit board to be tested, fix the probe to the upper test board and the probe to the lower test board.

[0013] Further, use epoxy glue to fix the probe to the upper test board and the probe to the lower test board. When fixing, avoid sticking to the telescopic part of the front concave part of the probe.

[0014] Further, the tail end of the probe is connected to an external test device or apparatus through a wire.

[0015] Further, a heat shrinkable tube is sleeved at the connection between the tail end of the probe and the wire.

[0016] Further, the upper test board and the lower test board are made of a visible transparent material.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] The utility model relates to a circuit board debugging device which fixes a circuit board to be tested through an upper test board and a lower test board, and uses probes to connect the points of the circuit board to be tested with external test devices or apparatuses, so as to realize the debugging of the circuit board product. The device adopts a welding-free installation and connection process method, which solves the quality risk problems such as the damage of debugging resistor pads and surrounding devices caused by manual use of a soldering iron to complete the debugging connection. In the production process, it can be used as an effective improvement measure to solve the error-prone and difficult operation points in the production process in the product debugging process. It not only improves the product quality, effectively relieves the use pressure of personnel and equipment, but also shortens the debugging time and improves the production efficiency. This process measure can also be used as the basis for building an automatic debugging environment for electronic circuit boards to further realize the intelligentization of product debugging. Brief Description of the Drawings

[0019] Figure 1 Fig. is an overall schematic diagram of a circuit board debugging device in an embodiment of the utility model.

[0020] Figure 2 Fig. is a schematic diagram of the positions of gaskets and washers in an embodiment of the utility model.

[0021] Figure 3 Fig. is a schematic diagram of the installation of a circuit board to be tested in an embodiment of the utility model.

[0022] In the figure, 1 is the lower test board, 2 is the probe, 3 is the guide pin, 3-1 is the washer, 4 is the guide pin sleeve, 5 is the quick-acting screw, 6 is the upper test board, 7 is the rotating arm, 8 is the rotating shaft, 9 is the mounting seat, 9-1 is the gasket, 10 is the height-limiting column, and 11 is the circuit board to be tested. Detailed Embodiment

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0024] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances, so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] Embodiment 1:

[0026] As Figures 1 to 3 shown is the overall structure and installation schematic diagram of a circuit board debugging device in an embodiment of the present utility model. As Figure 1 shown, a circuit board debugging device includes an upper test board 6, a lower test board 1, and probes 2; as Figure 3 shown, the upper test board 6 and the lower test board 1 are used to place a circuit board to be tested 11 therebetween; probe holes are opened on the upper test board 6 and the lower test board 1 according to the positions of the pads for debugging different circuit boards to be tested. One end of the probe 2 is a front concave part, and the other end is a tail end. The probe 2 is inserted into the probe hole according to the position points of the circuit board 11 to be tested; a guide pin sleeve 4 and a quick-acting screw 5 are also installed on the upper test board 6, and a guide pin 3 and a height-limiting column 10 are also installed on the lower test board 1; one end of the guide pin 3 is installed on the lower test board 1, and the other end has a convex part. One end of the guide pin sleeve 4 is installed on the upper test board 6, and the other end has a hole that matches the convex part of the guide pin 3; one end of the height-limiting column 10 is installed on the lower test board 1, and the other end has a threaded hole. One end of the quick-acting screw 5 is a convex part that matches the height-limiting column 10, and the other end is a handle. Align the circuit board 11 to be tested with the guide pin 3 and place it between the upper test board 6 and the lower test board 1, and insert the probe 2 into the corresponding probe hole according to the position points of the circuit board 11 to be tested.

[0027] Furthermore, a rotating arm 7 is also provided on the upper test board 6, and a mounting seat 9 is also provided on the lower test board 1. The rotating arm 7 and the mounting seat 9 are rotatably installed together through a rotating shaft 8. Thus, the upper test board 6 and the lower test board 1 can be opened and closed like a flip cover.

[0028] Furthermore, as Figure 2As shown, after the point positions of the circuit board 11 to be tested are confirmed, a washer 3-1 is placed on the guide pin 3, and a gasket 9-1 is placed at the contact position of the mounting seat 9 with the circuit board 11 to be tested. Then, the circuit board 11 to be tested is placed into the debugging device, and the quick-action screw 5 is rotated to clamp the circuit board 11 to be tested. The thicknesses of both the washer 3-1 and the gasket 9-1 are 1 mm.

[0029] Further, the concave head part at the front end of the probe 2 contacts the circuit board 11 to be tested. The concave head part at the front end of the probe 2 is telescopically arranged, and the tail end of the probe 2 is connected to an external testing device or apparatus.

[0030] Further, after the point positions of the circuit board 11 to be tested are confirmed, the probe 2 is fixed to the upper test board 6 and the probe 2 is fixed to the lower test board 1. Epoxy glue is used to fix the probe 2 to the upper test board 6 and the probe 2 to the lower test board 1. When fixing, the telescopic part of the concave head part at the front end of the probe 2 is avoided from being adhered.

[0031] Further, the tail end of the probe 2 is connected to an external testing device or apparatus through a wire. A heat shrinkable tube is sleeved at the connection position of the tail end of the probe 2 and the wire.

[0032] Further, the upper test board 6 and the lower test board 1 are made of a visible transparent material.

[0033] Embodiment 2:

[0034] This embodiment is a specific implementation of a circuit board debugging device. A circuit board debugging device includes an upper test board 6 and a lower test board 1. Both the upper test board 6 and the lower test board 1 use visible plexiglass as the mounting material, which is convenient for observing the contact situation between the probe and the solder joints on the electronic circuit board during the testing process and avoiding operation errors. The circuit board debugging device further includes a probe 2. Probe holes are provided on the upper test board 6 and the lower test board 1 according to the debugging pad positions of different circuit boards to be tested. The front end of the probe 2 is a telescopic concave head part. The front end of the probe 2 contacts the circuit board to be tested. The tail end of the probe 2 is connected to a wiring terminal (or connector) through a wire and is docked with a resistance adjustable device (or apparatus) such as a resistance box (or resistance board card). The probe 2 contacts the point positions on the circuit board to be tested through the probe holes on the upper test board 6 and the lower test board 1, thereby completing the connection between the point positions to be tested and the external testing device or apparatus.

[0035] A guide pin sleeve 4 and a quick-action screw 5 are also installed on the upper test board 6, and a guide pin 3 and a height-limiting post 10 are also installed on the lower test board 1; one end of the guide pin 3 is installed on the lower test board 1, and the other end has a convex portion. One end of the guide pin sleeve 4 is installed on the upper test board 6, and the other end has a hole that matches the convex portion of the guide pin 3; one end of the height-limiting post 10 is installed on the lower test board 1, and the other end has a threaded hole. One end of the quick-action screw 5 is a convex portion that matches the height-limiting post 10, and the other end is a handle. A rotating arm 7 is also provided on the upper test board 6, and a mounting seat 9 is also provided on the lower test board 1. The rotating arm 7 and the mounting seat 9 are rotatably installed together through a rotating shaft 8. Thus, the upper test board 6 and the lower test board 1 can be opened and closed like a flip cover.

[0036] The guide pin 3, the guide pin sleeve 4, the mounting seat 9, the rotating arm, and the quick-action screw are made of stainless steel. The probe 2 is a Huarong probe with low impedance, high frequency, and high hardness, and the model specification is PA100 - A2 cup-shaped concave head (head 1.5mm, tip depth about 0.7mm). The connecting wire for debugging is selected as a high-temperature wire AF - 130 / 0.08, and the wire length is selected according to the working conditions and requirements during testing.

[0037] Further, place the circuit board to be tested 11 between the upper test board 6 and the lower test board 1. After selecting a suitable probe hole, put the probe 2 into it. The probe 2 touches the circuit board to be tested. At this time, the probe 2 is in a free state. Turn the handle of the quick-action screw 5 to tighten the quick-action screw 5 and the height-limiting post 10 to determine the installation height of the probe 2. Then use epoxy glue to fix the probe 2 on the test board where it is located. When applying the epoxy glue, it must avoid the retractable part at the front end of the probe 2 to prevent affecting the subsequent positioning of the probe 2 on the circuit board to be tested and the contact effect between the probe 2 and the point to be tested. After the epoxy glue solidifies (after 24 hours), the probe fixing is completed. Open the circuit board debugging device, add a 1mm washer 3 - 1 on the guide pin 3, and add a 1mm spacer 9 - 1 at the part where the mounting seat 9 contacts the circuit board to be tested 11, so as to raise the circuit board to be tested and ensure that the front end of the probe 2 is in close contact with the point to be tested on the circuit board to be tested, achieving precise positioning. The front end of the probe 2 only touches the point to be tested on the circuit board to be tested. Tighten the quick-action screw 5 to make the front end of the probe 2 retract, and the probe 2 effectively contacts the circuit board to be tested. A heat shrinkable tube is used at the connection between the probe 2 and the wire to prevent test errors caused by contact between the two probes.

[0038] Use a digital multimeter to directly read the value or use a computer signal processing and acquisition matching method to complete the debugging. The debugger only needs to assemble with special structural components to replace soldering with a soldering iron to complete the debugging, installation, and connection of the circuit board components. In this way, the debugging environment is built to meet the product debugging requirements. The design concept and implementation plan of the present utility model can be popularized and applied to various board-level products to achieve process improvement.

Claims

1. A circuit board debugging device, characterized in that, It includes an upper test board (6), a lower test board (1), and probes (2); between the upper test board (6) and the lower test board (1) is for placing the circuit board to be tested (11); there are probe holes on the upper test board (6) and the lower test board (1), one end of the probe (2) is the front concave head part, and the other end is the tail end. The probe (2) is inserted into the probe hole according to the position of the circuit board to be tested (11); a guide pin sleeve (4) and a quick-acting screw (5) are also installed on the upper test board (6), and a guide pin (3) and a height-limiting post (10) are also installed on the lower test board (1); one end of the guide pin (3) is installed on the lower test board (1), and the other end has a convex part. One end of the guide pin sleeve (4) is installed on the upper test board (6), and the other end has a hole that matches the convex part of the guide pin (3); one end of the height-limiting post (10) is installed on the lower test board (1), and the other end has a threaded hole. One end of the quick-acting screw (5) is a convex part that matches the height-limiting post (10), and the other end is a handle.

2. The circuit board debugging device according to claim 1, characterized in that, A rotating arm (7) is also provided on the upper test board (6), and a mounting seat (9) is also provided on the lower test board. The rotating arm (7) and the mounting seat (9) are rotatably installed together through a rotating shaft (8).

3. The circuit board debugging device according to claim 2, wherein After the positions of the circuit board to be tested (11) are confirmed, a washer (3-1) is placed on the guide pin (3), and a gasket (9-1) is placed at the position where it contacts the circuit board to be tested (11) on the mounting seat (9).

4. The circuit board debugging device according to claim 3, characterized in that, The thickness of both the washer (3-1) and the gasket (9-1) is 1 mm.

5. A circuit board debugging device according to claim 1, characterized in that, The front concave head part of the probe (2) contacts the circuit board to be tested (11). The front concave head part of the probe (2) is telescopically arranged, and the tail end of the probe (2) is connected to an external test device or apparatus.

6. The circuit board debugging device according to claim 5, characterized in that, After the positions of the circuit board to be tested (11) are confirmed, the probe (2) is fixed to the upper test board (6) and the probe (2) is fixed to the lower test board (1).

7. The circuit board debugging device according to claim 6, wherein, Epoxy glue is used to fix the probe (2) to the upper test board (6) and the probe (2) to the lower test board (1). When fixing, avoid sticking to the telescopic part of the front concave head part of the probe (2).

8. An electronic circuit board debugging device according to claim 5, wherein The tail end of the probe (2) is connected to an external test device or apparatus through a wire.

9. The circuit board debugging device according to claim 8, characterized in that, A heat shrink tube is sleeved at the connection between the tail end of the probe (2) and the wire.

10. A circuit board debugging device according to claim 1, wherein, The upper test board (6) and the lower test board (1) are made of a visible transparent material.

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