CN216115841U - Detection tool for detecting position precision between through holes in HDI board - Google Patents
Detection tool for detecting position precision between through holes in HDI board Download PDFInfo
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- CN216115841U CN216115841U CN202122625206.1U CN202122625206U CN216115841U CN 216115841 U CN216115841 U CN 216115841U CN 202122625206 U CN202122625206 U CN 202122625206U CN 216115841 U CN216115841 U CN 216115841U
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Abstract
The utility model discloses a detection tool for detecting position accuracy between through holes in an HDI plate, which comprises a workbench (1), wherein a support (2) is fixedly arranged on the table top of the workbench (1), a power unit is arranged on the table top of the workbench (1), an output shaft of the power unit is arranged upwards, a rotary table (3) is arranged on the output shaft, a positioning groove (4) matched with the HDI plate is formed in the top surface of the rotary table (3), the positioning groove (4) is formed in the top surface of the rotary table (3), the depth of the positioning groove (4) is smaller than the thickness of the HDI plate, a lifting cylinder (5) is fixedly arranged on a top cross beam of the support (2), a lifting plate (7) is fixedly arranged at the bottom of a connecting plate (6), a guide column (8) is slidably arranged on the lifting plate (7), and two ends of the guide column (8) penetrate through the lifting plate (7). The utility model has the beneficial effects that: compact structure, detection precision height, prevent that unqualified HDI board from flowing into back end process, easy operation.
Description
Technical Field
The utility model relates to the technical field of blind hole position detection, in particular to a detection tool for detecting position accuracy between through holes on an HDI board.
Background
At present, with the continuous development of electronic products, the electronic products are made more and more delicate, and the indispensable important components in the electronic products are circuit boards, which are further divided into high-order high-density circuit boards, HDI boards, IC circuit boards and the like, wherein the HDI boards are widely applied. The HDI board as shown in FIG. 1 is installed in an electronic product, a plurality of through holes 19 distributed in an annular shape are formed in the HDI board, the through holes 19 are uniformly distributed on the HDI board, and the through holes 19 are used for conducting circuit layers in all layers of the HDI board. The process requires that after the through holes are drilled and formed, hole positions between the through holes 19 need to be detected, namely whether the distance between every two adjacent through holes 19 is qualified is detected, so that the problem that unqualified HDI boards flow into subsequent production procedures can be solved.
The existing detection mode adopts a high power magnifying lens for detection, namely the high power magnifying lens shoots each through hole on the HDI board, images are transmitted to a display, and a worker measures the distance between adjacent through holes 19 on the display to detect out the HDI board with unqualified hole sites and remove the unqualified HDI board. However, manual measurement on the display still generates a large amount of measurement errors, so that the unqualified HDI board flows into the subsequent production process, and the qualified HDI board is removed. Therefore, a checking fixture with high detection precision and capable of preventing unqualified HDI plates from flowing into a subsequent process is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides the checking fixture for detecting the position precision between the through holes on the HDI board, which has the advantages of compact structure, high detection precision, capability of preventing unqualified HDI boards from flowing into the back-end process and simplicity in operation.
The purpose of the utility model is realized by the following technical scheme: a detection tool for detecting position accuracy between through holes on an HDI plate comprises a workbench, a support is fixedly arranged on a table top of the workbench, a power unit is arranged on the table top of the workbench, an output shaft of the power unit is arranged upwards, a rotary table is arranged on the output shaft, a positioning groove and a positioning groove are formed in the top surface of the rotary table, the positioning groove is matched with the HDI plate, the depth of the positioning groove is smaller than the thickness of the HDI plate, a lifting cylinder is fixedly arranged on a top cross beam of the support, an action end of a piston rod of the lifting cylinder penetrates through the cross beam and is fixedly provided with a connecting plate, a lifting plate is fixedly arranged at the bottom of the connecting plate, a guide column is slidably arranged on the lifting plate, two ends of the guide column penetrate through the lifting plate, a cylindrical head coaxially arranged with the guide column is fixedly arranged at the bottom of the guide column, the diameter of the cylindrical head is equal to that of the through holes, and a fixing plate is fixedly arranged at the top of the guide column, a spring is sleeved on the guide post, one end of the spring is fixedly arranged on the fixed plate, and the other end of the spring is fixedly arranged on the lifting plate; a microswitch is arranged on the top surface of the cylindrical head, a rubber pad is arranged on the bottom surface of the lifting plate, and the rubber pad is arranged right above the microswitch.
The power unit comprises a stepping motor and a speed reducer, wherein the stepping motor and the speed reducer are fixedly arranged on the table top of the workbench, an output shaft of the stepping motor is connected with an input shaft of the speed reducer, an output shaft of the speed reducer is vertically arranged, and the turntable is welded on the output shaft of the speed reducer.
The welding has the guide holder on the crossbeam of support, slidable mounting has the guide bar in the guide holder, and the guide bar sets firmly on the top surface of fixed plate.
The microswitch is electrically connected with the controller through a signal wire, and the controller is connected with the stepping motor.
A groove body is formed in the cross beam of the support, and a piston rod of the lifting cylinder penetrates through the groove body.
The utility model has the following advantages: compact structure, detection precision height, prevent that unqualified HDI board from flowing into back end process, easy operation.
Drawings
FIG. 1 is a schematic structural diagram of an HDI plate;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of a turntable;
FIG. 4 is a schematic view of the present invention positioning an HDI plate;
FIG. 5 is a schematic view of FIG. 4 taken along line A;
FIG. 6 is a schematic diagram of a detected through hole position being in a pass state
FIG. 7 is a schematic diagram of a defective position of a detected via hole;
FIG. 8 is an enlarged view of a portion I of FIG. 2;
in the figure, 1-workbench, 2-bracket, 3-turntable, 4-positioning groove, 5-lifting cylinder, 6-connecting plate, 7-lifting plate, 8-guide column, 9-cylinder head, 10-fixing plate, 11-spring, 12-microswitch, 13-rubber pad, 14-stepping motor, 15-reducer, 16-guide seat, 17-guide rod, 18-HDI plate, and 19-through hole.
Detailed Description
The utility model will be further described with reference to the accompanying drawings, without limiting the scope of the utility model to the following:
as shown in figures 2, 3 and 8, the checking fixture for detecting the position precision between through holes on an HDI plate comprises a workbench 1, a bracket 2 is fixedly arranged on the table top of the workbench 1, a power unit is arranged on the table top of the workbench 1, an output shaft of the power unit is arranged upwards, a rotary table 3 is arranged on the output shaft, a positioning groove 4 matched with the HDI plate and a positioning groove 4 are arranged on the top surface of the rotary table 3, the depth of the positioning groove 4 is smaller than the thickness of the HDI plate, a lifting cylinder 5 is fixedly arranged on a cross beam at the top of the bracket 2, the action end of a piston rod of the lifting cylinder 5 penetrates through the cross beam, a connecting plate 6 is fixedly arranged on an extending end, a lifting plate 7 is fixedly arranged at the bottom of the connecting plate 6, a guide column 8 is slidably arranged on the lifting plate 7, two ends of the guide column 8 penetrate through the lifting plate 7, a cylindrical head 9 coaxially arranged with the guide column 8 is fixedly arranged at the bottom of the guide column 8, the diameter of the cylindrical head 9 is equal to that of the through hole, the top of the guide column 8 is fixedly provided with a fixed plate 10, the guide column 8 is sleeved with a spring 11, one end of the spring 11 is fixedly arranged on the fixed plate 10, and the other end of the spring 11 is fixedly arranged on the lifting plate 7; a micro switch 12 is arranged on the top surface of the cylindrical head 9, a rubber pad 13 is arranged on the bottom surface of the lifting plate 7, and the rubber pad 13 is arranged right above the micro switch 12. The microswitch 12 is electrically connected with the controller through a signal wire, the controller is connected with the stepping motor 14, when a pressing sheet of the microswitch 12 is touched, the microswitch 12 can send an electric signal to the controller, the controller can control the stepping motor 14 to start after receiving the electric signal, and on the contrary, when the pressing sheet of the microswitch 12 is not touched, the microswitch does not send any electric signal to the controller. The power unit comprises a stepping motor 14 and a speed reducer 15 which are fixedly arranged on the table surface of the workbench 1, an output shaft of the stepping motor 14 is connected with an input shaft of the speed reducer 15, an output shaft of the speed reducer 15 is vertically arranged, and the turntable 3 is welded on the output shaft of the speed reducer 15.
The welding has guide holder 16 on the crossbeam of support 2, slidable mounting has guide bar 17 in guide holder 16, and guide bar 17 sets firmly on the top surface of fixed plate 10, the cell body has been seted up on the crossbeam of support 2, the piston rod of lift cylinder 5 runs through the cell body setting.
The working process of the utility model is as follows:
s1, positioning the HDI board, namely, putting the HDI board 18 into the positioning groove 4 of the turntable 3 by a worker to realize positioning of the HDI board, wherein at the moment, one through hole 19 in the HDI board 18 is just positioned under the cylindrical head 9, so that the positioning of the HDI board is realized, and the positioning is shown in FIGS. 4-5;
s2, detecting the hole position of a first through hole on the HDI board, wherein a worker firstly controls a piston rod of a lifting cylinder 5 to extend downwards, the piston rod drives a lifting board 7, a guide post 8 and a cylinder head 9 to move downwards synchronously, after the piston rod extends completely, if a micro switch 12 sends an electric signal to a controller, the cylinder head 9 does not enter a second through hole, the lifting board 7 moves downwards relative to a static guide rod 17, a rubber pad 13 is pressed on the micro switch 12, and the micro switch 12 sends an electric signal to the controller, the hole position of the first through hole is unqualified as shown in figure 7, and at the moment, the worker controls the piston rod of the lifting cylinder 5 to retract upwards to remove the detected HDI board; if the micro switch 12 does not send any electric signal to the controller, it indicates that the cylinder head 9 has entered the first through hole, and the micro switch 12 is not pressed by the rubber pad 13, it indicates that the hole site of the first through hole is qualified as shown in fig. 6, at this time, the worker controls the piston rod of the lifting cylinder 5 to retract upwards, after retraction, the controller controls the stepping motor 14 to start, the torque of the stepping motor 14 is transmitted to the turntable 3 after being decelerated by the decelerator 15, the turntable 3 drives the HDI plate 18 thereon to rotate by a certain angle, after rotating by a set angle, the controller controls the stepping motor 14 to close, and at this time, the second through hole is located at the detection station;
and S3, repeating the operation of the step S2 to detect the hole position of the second through hole until the hole positions of all the through holes on the HDI board are detected.
Therefore, the inspection device is compared with a traditional high-power magnifier for detection, hole sites between through holes do not need to be measured on a display manually, whether the hole sites of the through holes are qualified or not is judged through more visual wire numbers, the detection precision of the hole sites between the through holes is greatly improved, unqualified HDI plates are effectively prevented from flowing into a back-end process, and the economic benefit of enterprises is prevented from being influenced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a detect utensil of examining of position precision between through-hole on HDI board which characterized in that: the HDI plate-type rotary table comprises a working table (1), a support (2) is fixedly arranged on a table top of the working table (1), a power unit is arranged on the table top of the working table (1), an output shaft of the power unit is arranged upwards, a rotary table (3) is arranged on the output shaft, a positioning groove (4) matched with an HDI plate is formed in the top surface of the rotary table (3), the depth of the positioning groove (4) is smaller than the thickness of the HDI plate, a lifting cylinder (5) is fixedly arranged on a top cross beam of the support (2), an acting end of a piston rod of the lifting cylinder (5) penetrates through the cross beam, a connecting plate (6) is fixedly arranged on an extending end, a lifting plate (7) is fixedly arranged at the bottom of the connecting plate (6), a guide column (8) is slidably arranged on the lifting plate (7), two ends of the guide column (8) penetrate through the lifting plate (7), a cylindrical head (9) coaxially arranged with the guide column (8) is fixedly arranged at the bottom of the guide column, the diameter of the cylindrical head (9) is equal to that of the through hole, a fixing plate (10) is fixedly arranged at the top of the guide column (8), a spring (11) is sleeved on the guide column (8), one end of the spring (11) is fixedly arranged on the fixing plate (10), and the other end of the spring (11) is fixedly arranged on the lifting plate (7); a microswitch (12) is arranged on the top surface of the cylindrical head (9), a rubber pad (13) is arranged on the bottom surface of the lifting plate (7), and the rubber pad (13) is arranged right above the microswitch (12).
2. The inspection device for detecting the position accuracy between the through holes on the HDI board as claimed in claim 1, wherein: the power unit comprises a stepping motor (14) and a speed reducer (15) which are fixedly arranged on the table top of the workbench (1), an output shaft of the stepping motor (14) is connected with an input shaft of the speed reducer (15), an output shaft of the speed reducer (15) is vertically arranged, and the turntable (3) is welded on the output shaft of the speed reducer (15).
3. The inspection device for detecting the position accuracy between the through holes on the HDI board as claimed in claim 1, wherein: the welding has guide holder (16) on the crossbeam of support (2), slidable mounting has guide bar (17) in guide holder (16), and guide bar (17) set firmly on the top surface of fixed plate (10).
4. The inspection device for detecting the position accuracy between the through holes on the HDI board as claimed in claim 1, wherein: the microswitch (12) is electrically connected with a controller through a signal wire, and the controller is connected with the stepping motor (14).
5. The inspection device for detecting the position accuracy between the through holes on the HDI board as claimed in claim 1, wherein: a groove body is formed in the cross beam of the support (2), and a piston rod of the lifting cylinder (5) penetrates through the groove body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625206.1U CN216115841U (en) | 2021-10-29 | 2021-10-29 | Detection tool for detecting position precision between through holes in HDI board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122625206.1U CN216115841U (en) | 2021-10-29 | 2021-10-29 | Detection tool for detecting position precision between through holes in HDI board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216115841U true CN216115841U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202122625206.1U Active CN216115841U (en) | 2021-10-29 | 2021-10-29 | Detection tool for detecting position precision between through holes in HDI board |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813759A (en) * | 2022-06-24 | 2022-07-29 | 四川英创力电子科技股份有限公司 | Hole checking device and method for precisely detecting number of holes in printed circuit board |
| CN117606324A (en) * | 2024-01-22 | 2024-02-27 | 四川英创力电子科技股份有限公司 | High-efficiency detection device and method for double-sided hole sites of circuit board |
-
2021
- 2021-10-29 CN CN202122625206.1U patent/CN216115841U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813759A (en) * | 2022-06-24 | 2022-07-29 | 四川英创力电子科技股份有限公司 | Hole checking device and method for precisely detecting number of holes in printed circuit board |
| CN117606324A (en) * | 2024-01-22 | 2024-02-27 | 四川英创力电子科技股份有限公司 | High-efficiency detection device and method for double-sided hole sites of circuit board |
| CN117606324B (en) * | 2024-01-22 | 2024-03-26 | 四川英创力电子科技股份有限公司 | High-efficiency detection device and method for double-sided hole sites of circuit board |
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