CN221259769U - Detection device capable of accurately detecting thickness of circuit board medium - Google Patents
Detection device capable of accurately detecting thickness of circuit board medium Download PDFInfo
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- CN221259769U CN221259769U CN202323301840.5U CN202323301840U CN221259769U CN 221259769 U CN221259769 U CN 221259769U CN 202323301840 U CN202323301840 U CN 202323301840U CN 221259769 U CN221259769 U CN 221259769U
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- thickness
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- 238000001514 detection method Methods 0.000 title claims abstract description 114
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000005086 pumping Methods 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000000243 solution Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The utility model provides a detection device that can accurately detect circuit board medium thickness, it includes detection platform, circuit board, encloses fender subassembly, detection component, pumping component and control system, be equipped with the detection groove on the detection platform, and should detect the inside holding cavity that still is equipped with of platform, the circuit board is arranged in the detection groove, enclose the periphery that keeps off the subassembly and locate the detection groove and spacing to the circuit board, detection component locates on the detection platform and with circuit board electric connection, pumping component installs in the holding cavity and with detection groove intercommunication, control system respectively with each subassembly signal connection. According to the utility model, the dielectric thickness of the circuit board is detected by designing the liquid discharge structure and matching with the characteristics of the conductive solution, and compared with the traditional slice detection, the method is simpler, more convenient and more accurate; the detection assembly and the enclosure assembly are designed to be of movable and adjustable structures, and can be adapted to detection of circuit boards with different widths and lengths, so that the applicability of the detection device is enhanced; the utility model has strong practicability and has stronger popularization significance.
Description
Technical Field
The utility model relates to a circuit board detection device, in particular to a detection device capable of accurately detecting the thickness of a circuit board medium.
Background
The circuit board is also called a circuit board, is an important electronic component, is a support body of an electronic component, and is a carrier for electrically connecting the electronic component with each other. It is called a "printed" circuit board because it is made using electronic printing. Almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device, a military weapon system, and as long as there are electronic components such as an integrated circuit, a circuit board is used for electrically interconnecting the respective components.
Factors influencing the impedance of the wiring of the circuit board mainly include the width of the copper wire, the thickness of the copper wire, the dielectric constant of the dielectric layer, the thickness of the bonding pad, the path of the ground wire, the wiring around the wiring and the like, wherein the thickness of the dielectric layer is one of parameters which must be strictly controlled in the manufacturing process of the circuit board. In the prior art, the determination method of the thickness of the dielectric layer in the circuit board mainly comprises the steps of slicing analysis and measuring the thickness by a metallographic microscope. However, the process of the method is complicated, and the subunits in the circuit board can be damaged in the measuring process, so that the subunits in the circuit board are scrapped, and even the whole circuit board is scrapped.
Disclosure of utility model
Based on the above, it is necessary to provide a detecting device capable of accurately detecting the thickness of the circuit board medium in order to overcome the defects in the prior art.
The utility model provides a detection device that can accurately detect circuit board medium thickness, it includes detection platform, circuit board, detection component, pumping component, encloses fender subassembly and control system, be equipped with the detection groove on the detection platform, and should detect the inside holding cavity that still is equipped with of platform, the circuit board is arranged in the detection groove, enclose the periphery of keeping off the subassembly and locating the detection groove and spacing to the circuit board, detection component locates on the detection platform and with circuit board electric connection, pumping component installs in the holding cavity and with detection groove intercommunication, control system respectively with each subassembly signal connection. The circuit board comprises a plurality of layers of copper layers and dielectric layers which are alternately laminated, and one side of the copper layer is also provided with a detection bit. The detection assembly comprises a negative plate and a positive needle row, wherein the positive needle row comprises a mounting column and a plurality of positive needles. The negative plate is clamped in the detection groove and is arranged on the same horizontal plane with the groove bottom, the mounting column is arranged on the detection table, the positive needles are arranged on one side of the mounting column, two ends of the positive needles are respectively electrically connected with the negative plate and the detection positions, and the positive needles are further connected with a control system through signals.
Further, the pumping assembly comprises a pump barrel, a pump rod and a liquid discharge pipe. The pump barrel is the hollow cylinder design of lower extreme open-ended, and it is installed in the holding cavity of detecting the platform, the pump pole wears to locate in the pump barrel from bottom to top and can movable lift, the lower extreme of fluid-discharge tube and the upper end intercommunication of pump barrel, and the upper end and the bottom intercommunication of detecting the groove of this fluid-discharge tube. The upper end of the liquid discharge pipe is also provided with a liquid level sensor which is in signal connection with a control system.
Further, the detection table is also provided with a first chute, and the lower end of the mounting column is clamped in the first chute and can slide in an adjustable manner. One side of the mounting column is also provided with a second chute, and one ends of the positive electrode needles are clamped in the second chute and can slide in an adjustable manner.
Further, the enclosure assembly comprises a fixed baffle and two sliding baffles. The fixed baffle is fixedly arranged on the detection table and positioned on one side of the detection groove, and the upper end of the fixed baffle is also provided with an adjusting sliding rail. One side of the two sliding baffles is respectively clamped on the adjusting slide rail and is mutually perpendicular to the fixed baffle, and the lower ends of the two sliding baffles are attached to the bottom of the detection groove.
Further, the detection device capable of accurately detecting the thickness of the circuit board medium further comprises a recovery assembly, and the recovery assembly comprises a recovery box and a liquid guide tube. The recovery box is hollow, is arranged in the accommodating cavity of the detection table, the lower end of the liquid guide pipe is communicated with the upper end of the recovery box, and the upper end of the liquid guide pipe is communicated with the bottom of the detection groove.
Further, the detection device capable of accurately detecting the thickness of the circuit board medium further comprises a zeroing assembly, wherein the zeroing assembly comprises a mounting frame, a lifting rod and an injection pump. The mounting frame is fixedly arranged on the detection table, the upper end of the lifting rod is fixedly arranged on the mounting frame and is positioned right above the liquid discharge pipe, and the injection pump is arranged at the lower end of the lifting rod and is connected with the recycling bin pipeline.
In summary, the detection device capable of accurately detecting the thickness of the circuit board medium has the beneficial effects that: the dielectric thickness of the circuit board is detected by designing the liquid discharge structure and matching with the characteristics of the conductive solution, so that the method is simpler, more convenient and more accurate than the traditional slice detection; the detection assembly and the enclosure assembly are designed to be of movable and adjustable structures, and can be adapted to detection of circuit boards with different widths and lengths, so that the applicability of the detection device is enhanced; the recycling component and the zeroing component can recycle the consumed energy during detection, thereby reducing the cost and saving the resources; the utility model has strong practicability and has stronger popularization significance.
Drawings
FIG. 1 is a schematic diagram of a detecting device capable of accurately detecting the thickness of a circuit board medium according to the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic view of the structure of the detecting table and the negative plate in FIG. 3;
FIG. 5 is a schematic diagram of the circuit board in FIG. 3;
FIG. 6 is an exploded view of the cathode row of FIG. 3;
FIG. 7 is an exploded view of the pumping assembly of FIG. 3;
FIG. 8 is an exploded view of the enclosure assembly of FIG. 3;
FIG. 9 is a schematic view of the recovery assembly of FIG. 3;
fig. 10 is an exploded view of the zero setting assembly of fig. 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 10, the utility model provides a detection device 100 capable of accurately detecting the thickness of a medium of a circuit board 20, which comprises a detection table 10, a circuit board 20, a detection assembly 30, a pumping assembly 40, a surrounding baffle assembly 50 and a control system 60, wherein the detection table 10 is provided with a detection groove 11, a containing cavity 12 is further arranged in the detection table 10, the circuit board 20 is arranged in the detection groove 11, the surrounding baffle assembly 50 is arranged on the periphery of the detection groove 11 and limits the circuit board 20, the detection assembly 30 is arranged on the detection table 10 and is electrically connected with the circuit board 20, the pumping assembly 40 is arranged in the containing cavity 12 and is communicated with the detection groove 11, and the control system 60 is respectively connected with each assembly through signals.
The circuit board 20 includes a plurality of copper layers 21 and dielectric layers 22 stacked alternately, and a detection bit 211 is further provided on one side of the copper layers 21. The detecting assembly 30 includes a negative plate 31 and a positive needle row 32, and the positive needle row 32 includes a mounting post 321 and a plurality of positive needles 322. The negative plate 31 is clamped in the detection groove 11 and is arranged on the same horizontal plane with the groove bottom, the mounting post 321 is arranged on the detection table 10, a plurality of positive needles 322 are all arranged on one side of the mounting post 321, two ends of each positive needle 322 are respectively electrically connected with the negative plate 31 and the detection positions 211, and each positive needle 322 is also in signal connection with the control system 60.
The pumping assembly 40 includes a pump barrel 41, a pump rod 42, and a drain 43. The pump barrel 41 is a hollow cylinder with an opening at the lower end, and is arranged in the accommodating cavity 12 of the detection table 10, the pump rod 42 is arranged in the pump barrel 41 in a penetrating manner from bottom to top and can be lifted and lowered movably, the lower end of the liquid discharge pipe 43 is communicated with the upper end of the pump barrel 41, and the upper end of the liquid discharge pipe 43 is communicated with the bottom of the detection groove 11. The upper end of the drain pipe 43 is also provided with a liquid level sensor 431, and the liquid level sensor 431 is in signal connection with the control system 60.
When the thickness of the medium of the circuit board 20 needs to be detected, the circuit board 20 is firstly placed in the detection groove 11 to form a row of liquid grooves by surrounding the surrounding baffle assembly 50, and then the positive pins 322 of the detection assembly 30 are connected with the detection positions 211 on the circuit board 20 in a one-to-one correspondence. Then, the pump rod 42 is started to start lifting, and the conductive solution in the pump barrel 41 is pumped into the detection tank 11 along the drain pipe 43. The conductive solution enters the drain tank and is electrically connected with the negative plate 31 at the bottom of the tank, and then is electrically connected with the bottom copper layer 21 of the circuit board 20 after the liquid level rises gradually. When the conductive solution is just electrically connected to the two, the corresponding positive electrode needle 322 on the detecting element 30 will send a signal to the control system 60, and the control system 60 will record the volume of the conductive solution pumped into the detecting tank 11 by the pumping element 40. The thickness of the medium under the copper layer 21 can be obtained by dividing the volume value of the conductive solution by the area value of the drain groove (calculated by the measurable length and width).
The detection table 10 is further provided with a first chute 13, and the lower end of the mounting post 321 is engaged in the first chute 13 and can slide in an adjustable manner. One side of the mounting post 321 is further provided with a second sliding groove 321a, and one ends of the positive electrode pins 322 are respectively clamped in the second sliding groove 321a and can slide in an adjustable manner. The mounting post 321 capable of sliding along the first sliding groove 13 can adjust the horizontal distance between the positive electrode needle 322 and the detection groove 11, so that the end of the positive electrode needle 322 can be electrically connected with the detection positions 211 of the circuit boards 20 with different lengths, thereby completing the detection. The height difference between the positive electrode pins 322 can be adjusted by sliding the positive electrode pins 322 of the second sliding slot 321a, so that the end of the positive electrode pin 322 can be electrically connected with the detection positions 211 of the circuit board 20 with different thicknesses to complete the detection.
The enclosure assembly 50 includes a fixed baffle 51 and two sliding baffles 52. The fixed baffle plate 51 is fixedly arranged on the detection table 10 and positioned at one side of the detection groove 11, and the upper end of the fixed baffle plate 51 is also provided with an adjusting slide rail 511. One side of each of the two sliding baffles 52 is engaged with the adjusting rail 511 and perpendicular to the fixed baffle 51, and the lower ends of the two sliding baffles 52 are attached to the bottom of the detecting groove 11. The sliding baffle plate 52 which can slide along the adjusting slide rail 511 can clamp the circuit boards 20 with different widths, so that the two boards form a liquid draining groove with sealed periphery, and the thickness of the medium is detected.
The detection device 100 for accurately detecting the thickness of the medium of the circuit board 20 further comprises a recovery assembly 70, and the recovery assembly 70 comprises a recovery box 71 and a liquid guide tube 72. The recovery tank 71 is hollow, and is disposed in the accommodating cavity 12 of the detection table 10, the lower end of the liquid guide tube 72 is communicated with the upper end of the recovery tank 71, and the upper end of the liquid guide tube 72 is communicated with the bottom of the detection groove 11. When the inspection is completed, the conductive solution remaining in the inspection tank 11 can flow into the recovery tank 71 along the liquid guide pipe 72 to be recovered for subsequent reuse.
The detecting device 100 for accurately detecting the thickness of the medium of the circuit board 20 further comprises a zeroing assembly 80, wherein the zeroing assembly 80 comprises a mounting frame 81, a lifting rod 82 and a syringe pump 83. The mounting frame 81 is fixedly arranged on the detection table 10, the upper end of the lifting rod 82 is fixedly arranged on the mounting frame 81 and is positioned right above the liquid discharge pipe 43, and the injection pump 83 is arranged at the lower end of the lifting rod 82 and is connected with the recovery box 71 in a pipeline manner. When the amount of the conductive solution in the pump barrel 41 decreases due to the end of the detection, the lifting rod 82 can drive the injection pump 83 to align with the liquid discharge pipe 43, the conductive solution in the recovery tank 71 pumped by the injection pump 83 flows into the pump barrel 41 from the liquid discharge pipe 43 again until the liquid level of the conductive solution is just flush with the upper end of the liquid discharge pipe 43, namely, the zeroing of the conductive solution is completed, so that the next detection can be started.
In summary, the detection device 100 of the present utility model for precisely detecting the thickness of the medium of the circuit board 20 has the following advantages: the thickness of the medium of the circuit board 20 is detected by designing the liquid discharging structure to be matched with the characteristics of the conductive solution, so that the method is simpler, more convenient and more accurate than the traditional slice detection; the detection assembly 30 and the enclosure assembly 50 are designed to be of movable and adjustable structures, can be adapted to the detection of circuit boards 20 with different widths and lengths, and enhance the applicability of the detection device; the recycling assembly 70 and the zeroing assembly 80 can recycle the consumed energy during detection, thereby reducing the cost and saving the resources; the utility model has strong practicability and has stronger popularization significance.
The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the utility model. Accordingly, the scope of the utility model should be determined from the following claims.
Claims (6)
1. Detection device that can accurately detect circuit board medium thickness, its characterized in that: the device comprises a detection table, a circuit board, a detection assembly, a pumping assembly, a surrounding assembly and a control system, wherein the detection table is provided with a detection groove, an accommodating cavity is further formed in the detection table, the circuit board is arranged in the detection groove, the surrounding assembly is arranged on the periphery of the detection groove and limits the circuit board, the detection assembly is arranged on the detection table and is electrically connected with the circuit board, the pumping assembly is arranged in the accommodating cavity and is communicated with the detection groove, and the control system is respectively connected with all the assemblies through signals; the circuit board comprises a plurality of layers of copper layers and dielectric layers which are alternately laminated, and one side of the copper layer is also provided with a detection bit; the detection assembly comprises a negative plate and a positive needle row, wherein the positive needle row comprises a mounting column and a plurality of positive needles; the negative plate is clamped in the detection groove and is arranged on the same horizontal plane with the groove bottom, the mounting column is arranged on the detection table, the positive needles are arranged on one side of the mounting column, two ends of the positive needles are respectively electrically connected with the negative plate and the detection positions, and the positive needles are further connected with a control system through signals.
2. The device for precisely detecting the thickness of the medium of the circuit board according to claim 1, wherein: the pumping assembly comprises a pump barrel, a pump rod and a liquid discharge pipe; the pump barrel is of a hollow cylinder design with an opening at the lower end, the pump barrel is arranged in the accommodating cavity of the detection table, the pump rod penetrates through the pump barrel from bottom to top and can be lifted up and down movably, the lower end of the liquid discharge pipe is communicated with the upper end of the pump barrel, and the upper end of the liquid discharge pipe is communicated with the bottom of the detection groove; the upper end of the liquid discharge pipe is also provided with a liquid level sensor which is in signal connection with a control system.
3. The device for precisely detecting the thickness of the medium of the circuit board according to claim 1, wherein: the detection table is also provided with a first chute, and the lower end of the mounting column is clamped in the first chute and can slide in an adjustable manner; one side of the mounting column is also provided with a second chute, and one ends of the positive electrode needles are clamped in the second chute and can slide in an adjustable manner.
4. The device for precisely detecting the thickness of the medium of the circuit board according to claim 1, wherein: the enclosing baffle assembly comprises a fixed baffle plate and two sliding baffle plates; the fixed baffle is fixedly arranged on the detection table and positioned at one side of the detection groove, and the upper end of the fixed baffle is also provided with an adjusting slide rail; one side of the two sliding baffles is respectively clamped on the adjusting slide rail and is mutually perpendicular to the fixed baffle, and the lower ends of the two sliding baffles are attached to the bottom of the detection groove.
5. The device for precisely detecting the thickness of the medium of the circuit board according to claim 2, wherein: the recovery assembly comprises a recovery box and a liquid guide tube; the recovery box is hollow, is arranged in the accommodating cavity of the detection table, the lower end of the liquid guide pipe is communicated with the upper end of the recovery box, and the upper end of the liquid guide pipe is communicated with the bottom of the detection groove.
6. The device for precisely detecting the thickness of the medium of the circuit board according to claim 5, wherein: the device also comprises a zeroing assembly, wherein the zeroing assembly comprises a mounting frame, a lifting rod and a syringe pump; the mounting frame is fixedly arranged on the detection table, the upper end of the lifting rod is fixedly arranged on the mounting frame and is positioned right above the liquid discharge pipe, and the injection pump is arranged at the lower end of the lifting rod and is connected with the recycling bin pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323301840.5U CN221259769U (en) | 2023-12-05 | 2023-12-05 | Detection device capable of accurately detecting thickness of circuit board medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323301840.5U CN221259769U (en) | 2023-12-05 | 2023-12-05 | Detection device capable of accurately detecting thickness of circuit board medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221259769U true CN221259769U (en) | 2024-07-02 |
Family
ID=91623739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323301840.5U Active CN221259769U (en) | 2023-12-05 | 2023-12-05 | Detection device capable of accurately detecting thickness of circuit board medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221259769U (en) |
-
2023
- 2023-12-05 CN CN202323301840.5U patent/CN221259769U/en active Active
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