Quality detection device for detecting processing of printed circuit board

Abstract

The utility model relates to the field of circuit board processing, in particular to a quality detection device for detecting the processing of a printed circuit board, which comprises a bottom plate, a fixing seat is arranged above the bottom plate, a fixing groove is arranged at the upper end of the fixing seat, a metal plate is fixed at the bottom of the fixing groove, a top plate is further fixed above the bottom plate, and the top plate is fixed on the bottom plate. A lifting air cylinder is fixed to the top plate, a testing plate is fixed to the tail end of a piston rod of the lifting air cylinder, a plurality of testing modules are fixed to the bottom of the testing plate, each testing module comprises a supporting pipe fixed to the testing plate, probes are arranged on the supporting pipes, and the bottoms of the probes are arranged in the supporting pipes and are in sliding connection with the supporting pipes. A spring is further fixed in the portion, above the probes, of the supporting pipe, a plurality of bulbs are further fixed above the bottom plate, and the two ends of each bulb are connected with the corresponding probe and the storage battery respectively. The device can automatically detect the through hole in the circuit board, and can accurately confirm the blocking position of the through hole in the circuit board.

Description

[Technical field]

[0001] The utility model relates to the field of circuit board processing, in particular to a quality detection device for detecting printed circuit board processing. [Background technology]

[0002] A circuit board can be called a printed circuit board or a printed circuit board, also known as a PCB or FPC circuit board. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. As electronic equipment becomes more and more complex, the number of electronic parts integrated on PCB boards increases, and the number of through holes that need to be drilled on PCB boards also increases. Through-hole quality detection is a key step in PCB production. During the production process of PCB boards, it is very easy to leak holes due to broken drill bits, which is not easy to find visually; Patent application number: CN202020599383.X discloses a PCB through-hole quality detection device, including a base, a positioning column is fixedly connected to the upper end of the base, a fixing column is arranged on one side of the positioning column, a top frame is fixedly connected to the upper end of the fixing column, a telescopic mechanism is detachably connected to the lower end of the top frame, a connecting plate is detachably connected to the lower end of the telescopic mechanism, the connecting plate and the fixing plate are detachably connected by bolts, the connecting plate is detachably connected to the detection plate, and the lower end of the detection plate is threaded with a detection column. When inspecting the quality of through-holes on a PCB board, first place the PCB board on the positioning column so that the positioning column passes through the bolt hole of the PCB board, then press the pressing handle to compress the spring in the telescopic mechanism, and the compressed spring drives the telescopic column to move downward, and the telescopic column moving downward drives the inspection board and the inspection column to move downward. When the inspection column just passes through the through-hole on the PCB board, there is no tin plug hole or missing hole in the through-hole of the PCB board. However, this type of test device requires manual pressing for testing, and cannot accurately confirm which hole on the PCB board is blocked or missing.

[0003] The utility model is proposed in view of the deficiencies in the prior art. [Contents of the utility model]

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a quality detection device for detecting printed circuit board processing.

[0005] The utility model can be realized by the following technical solutions:

[0006] The utility model discloses a quality inspection device for inspecting printed circuit board processing, comprising a bottom plate, a fixing seat is arranged above the bottom plate, a fixing groove is arranged at the upper end of the fixing seat, a metal plate is fixed at the bottom of the fixing groove, a top plate is also fixed above the bottom plate, a lifting cylinder is fixed on the top plate, a test plate is fixed at the end of the piston rod of the lifting cylinder, a plurality of test modules are fixed at the bottom of the test plate, the test module comprises a support tube fixed on the test plate, a probe is arranged on the support tube, the bottom of the probe is arranged in the support tube and is slidably connected with the support tube, a spring is also fixed in the support tube above the probe, a plurality of light bulbs are also fixed above the bottom plate, two ends of the light bulbs are respectively connected with corresponding probes and batteries, and the battery is also connected with the metal plate through a wire. The drilled circuit board is placed in the fixing groove of the fixing seat, the lifting cylinder is started, the piston rod on the lifting cylinder is extended, the test plate is lowered, the support tube is lowered with the test plate, and the probe is lowered with the support tube. After each probe passes through the through hole on the circuit board, it contacts the metal plate. After the bottom of the probe contacts the metal plate, the two ends of the bulb are turned on by the battery and the bulb lights up, so that the through hole on the circuit board can be tested. When there is no through hole at the corresponding position on the circuit board, the probe at the corresponding position cannot contact the metal plate under the circuit board, and the bulb at the corresponding position is not turned on to light up. According to the bulb that does not light up, it can be quickly confirmed which probe is not in contact with the metal plate, that is, it can be confirmed which position of the circuit board has no through hole. This device can realize automatic detection of through holes on the circuit board and can accurately confirm the blocked position of the through hole on the circuit board.

[0007] Preferably, a plurality of positioning cylinders are fixed to the bottom plate, and the ends of the piston rods of the positioning cylinders are fixed to the fixing seat. When the circuit board is placed on the fixing seat, the fixing seat is on the side below the test board. After the circuit board is placed, the positioning cylinder is started, the piston rod on the positioning cylinder is shortened, and the circuit board moves with the fixing seat to the bottom of the test board. By setting the positioning cylinder, when placing and removing the circuit board, there is no obstruction above the fixing slot, which makes it more convenient to remove and place the circuit board.

[0008] Preferably, a material taking port penetrating the fixing seat is further provided on one side of the fixing seat. The material taking port is provided to facilitate access to the circuit board from below the circuit board and to facilitate taking out the circuit board from the fixing slot.

[0009] Preferably, a plurality of slide bars are fixed on the bottom plate, a plurality of slide tubes are fixed on the bottom of the fixing seat, and the slide bars pass through the slide tubes at corresponding positions and are slidably connected with the slide tubes. The fixing seat is supported by the slide bars.

[0010] Compared with the existing technology, the utility model has the following advantages:

[0011] The device can realize automatic detection of through holes on a circuit board, and can accurately confirm the blocked position of the through holes on the circuit board.

Brief Description of the Drawings

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 for Figure 2 Sectional view at AA;

[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0017] Figure 5 This is a schematic diagram of another embodiment of the present invention;

[0018] In the figure: 1, bottom plate; 2, positioning cylinder; 3, fixing seat; 4, fixing groove; 5, metal plate; 6, material taking port; 7, top plate; 8, lifting cylinder; 9, test plate; 10, light bulb; 11, test module; 12, support tube; 13, probe; 14, spring; 15, slide rod; 16, slide tube; [Specific implementation method]

[0019] The following is a detailed description of the implementation of the present invention in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] like Figures 1 to 4As shown, the present embodiment discloses a quality inspection device for inspecting printed circuit board processing, comprising a bottom plate 1, a fixing seat 3 is arranged above the bottom plate 1, a fixing groove 4 is arranged at the upper end of the fixing seat 3, a metal plate 5 is fixed at the bottom of the fixing groove 4, a top plate 7 is also fixed above the bottom plate 1, a lifting cylinder 8 is fixed on the top plate 7, a test plate 9 is fixed at the end of the piston rod of the lifting cylinder 8, a plurality of test modules 11 are fixed at the bottom of the test plate 9, the test module 11 comprises a support tube 12 fixed on the test plate 9, a probe 13 is arranged on the support tube 12, the bottom of the probe 13 is arranged in the support tube 12 and is slidably connected to the support tube 12, a spring 14 is also fixed in the support tube 12 above the probe 13, a plurality of light bulbs 10 are also fixed above the bottom plate 1, both ends of the light bulbs 10 are electrically connected to the corresponding probes 13 and batteries respectively, and the battery is also connected to the metal plate 5 through a wire. The drilled circuit board is placed in the fixing groove 4 of the fixing seat 3, the lifting cylinder 8 is started, the piston rod on the lifting cylinder 8 is extended, the test plate 9 is lowered, the support tube 12 is lowered with the test plate 9, and the probe 13 is lowered with the support tube 12. After each probe 13 passes through the through hole on the circuit board, it contacts the metal plate 5. After the bottom of the probe 13 contacts the metal plate 5, the two ends of the light bulb 10 are turned on by the battery and the light bulb 10 emits light, so that the through hole on the circuit board can be tested. When there is no through hole at the corresponding position on the circuit board, the probe 13 at the corresponding position cannot contact the metal plate 5 under the circuit board, and the light bulb 10 at the corresponding position is not turned on to emit light. According to the light bulb 10 that does not emit light, it can be quickly confirmed which probe 13 is not in contact with the metal plate 5, that is, it can be confirmed which position of the circuit board has no through hole. The device can realize automatic detection of the through holes on the circuit board and can accurately confirm the blocked position of the through hole on the circuit board.

[0022] Among them, multiple positioning cylinders 2 are also fixed on the bottom plate 1, and the ends of the piston rods of the positioning cylinders 2 are all fixed to the fixing seat 3. When the circuit board is placed on the fixing seat 3, the fixing seat 3 is on the side below the test board 9. After the circuit board is placed, the positioning cylinder 2 is started, and the piston rod on the positioning cylinder 2 is shortened, and the circuit board moves with the fixing seat 3 to the right below the test board 9. By setting the positioning cylinder 2, when placing and removing the circuit board, there is no obstruction above the fixing slot 4, which makes it more convenient to remove and place the circuit board.

[0023] Embodiment 2:

[0024] This embodiment discloses a quality inspection device for inspecting printed circuit board processing. Based on the structure and principle of the first embodiment, a material taking port 6 penetrating the fixing seat 3 is further provided on one side of the fixing seat 3 of the present embodiment. By providing the material taking port 6, it is convenient to contact the circuit board from below and to take out the circuit board from the fixing slot 4.

[0025] Embodiment 3:

[0026] like Figure 5As shown, this embodiment discloses a quality inspection device for inspecting printed circuit board processing. Based on the structure and principle of embodiment 1 or embodiment 2, a plurality of slide bars 15 are fixed on the bottom plate 1 of this embodiment, and a plurality of slide tubes 16 are fixed on the bottom of the fixed seat 3. The slide bars 15 pass through the slide tubes 16 at corresponding positions and are slidably connected with the slide tubes 16. The fixed seat 3 is supported by the slide bars 15.

[0027] The above description is only a preferred implementation mode of the present utility model. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present utility model. These changes, modifications, substitutions and variations should also be regarded as the protection scope of the present utility model.

Claims

1. A quality inspection device for inspecting printed circuit board processing, comprising a base plate, characterized in that: A fixing seat is arranged above the bottom plate, a fixing groove is arranged at the upper end of the fixing seat, a metal plate is fixed at the bottom of the fixing groove, a top plate is also fixed above the bottom plate, a lifting cylinder is fixed on the top plate, a test plate is fixed at the end of the piston rod of the lifting cylinder, a plurality of test modules are fixed at the bottom of the test plate, the test module comprises a support tube fixed on the test plate, a probe is arranged on the support tube, the bottom of the probe is arranged in the support tube and is slidably connected to the support tube, a spring is also fixed in the support tube above the probe, a plurality of light bulbs are also fixed above the bottom plate, two ends of the light bulbs are respectively connected to corresponding probes and batteries, and the battery is also connected to the metal plate through a wire.

2. The quality inspection device for inspecting printed circuit board processing according to claim 1 is characterized in that: A plurality of positioning cylinders are also fixed on the bottom plate, and the ends of the piston rods of the positioning cylinders are all fixed to the fixing seats.

3. The quality inspection device for inspecting printed circuit board processing according to claim 1 is characterized in that: A material taking port penetrating the fixing seat is also arranged on one side of the fixing seat.

4. The quality inspection device for inspecting printed circuit board processing according to claim 1 is characterized in that: A plurality of sliding rods are fixed to the bottom plate, a plurality of sliding tubes are fixed to the bottom of the fixing seat, and the sliding rods pass through the sliding tubes at corresponding positions and are slidably connected with the sliding tubes.

Images