CN113587804B - HDI board drilling depth detection equipment and detection method thereof - Google Patents
HDI board drilling depth detection equipment and detection method thereof Download PDFInfo
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- CN113587804B CN113587804B CN202111163130.3A CN202111163130A CN113587804B CN 113587804 B CN113587804 B CN 113587804B CN 202111163130 A CN202111163130 A CN 202111163130A CN 113587804 B CN113587804 B CN 113587804B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/26—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
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Abstract
The invention discloses HDI plate drilling depth detection equipment and a HDI plate drilling depth detection method, wherein a kidney-shaped groove (6) communicated with a sinking groove (5) is formed in the left side wall of a positioning seat (2), an adjusting cylinder (7) is further fixedly arranged on the left side outer wall of the positioning seat (2), the adjusting cylinder (7) is arranged below the kidney-shaped groove (6), an insulating seat (8) is fixedly arranged on the action end of a piston rod of the adjusting cylinder (7), the insulating seat (8) is arranged in the kidney-shaped groove (6), the right end of a horizontal copper column (9) extends into the sinking groove (5), the left end of the horizontal copper column (9) extends to the outer side of the insulating seat (8), a clamping cylinder (10) is fixedly arranged on the right side wall of the positioning seat (2), the piston rod of the clamping cylinder (10) extends into the sinking groove (5), and a push plate (11) is fixedly arranged on the extending end. The invention has the beneficial effects that: compact structure, improvement blind hole degree of depth detection efficiency, alleviate workman working strength, improve the hole degree of depth detection precision.
Description
Technical Field
The invention relates to the technical field of blind hole depth detection of an HDI plate after laser processing, in particular to HDI plate drilling depth detection equipment and a detection method thereof.
Background
The high-density interconnection printed circuit board is also called an HDI board, the demand of the HDI board is more and more, the number of layers is more and more, and the thickness of an insulating medium is smaller and more. The structure of a certain qualified HDI board is shown in FIG. 1, a first conductive circuit layer 29 and a second conductive circuit layer 30 are arranged in the HDI board, insulating layers 31 are arranged between the first conductive circuit layer 29 and the second conductive circuit layer 30, at the top of the first conductive circuit layer 29 and at the bottom of the second conductive circuit layer 30, a plurality of blind holes 32 are arranged on the top surface of the HDI board, and the blind holes 32 penetrate through the first conductive circuit layer 29 and are communicated with the second conductive circuit layer 30. Wherein, blind hole 32 adopts radium carving equipment radium-shine to form, radium carving equipment is from the insulating layer 31 and the first conducting wire layer 29 of the top transmission laser of HDI board in order to run through the HDI board promptly to process out blind hole 32. When the blind holes are processed by using the laser etching equipment, the energy of the laser etching equipment is difficult to control, if the energy is too high, the material is excessively burned by laser to downwards puncture the second conducting circuit layer 30, the too-deep blind holes 33 are obtained after processing, and the too-deep blind holes 33 do not meet the process requirements, so that the HDI board is an unqualified board, as shown in FIG. 2; if the energy is too low, the laser cannot be conducted to the second conductive trace layer 30, and the over-shallow blind via 34 is obtained after processing, and the over-shallow blind via 34 still does not meet the process requirement, so the HDI board is also an unqualified board, as shown in fig. 2.
Therefore, when a batch of HDI boards are processed through laser etching equipment, the workman all needs to inspect the degree of depth of blind hole, current detection method is that the workman inserts the through-rod that has the scale to the bottom of waiting to detect the blind hole of treating, the workman reads the scale from the top surface department of HDI board afterwards, this scale is the degree of depth that waits to detect the blind hole promptly, repeated operation so, the workman can wait to detect on the HDI board each and carry out the hole depth detection to the blind hole, if there is a hole depth different with the hole depth of standard blind hole, then the workman rejects whole HDI board, if the hole depth of all blind holes all is the same with the hole depth of standard blind hole, then the workman carries the HDI circuit board next station in. However, although the mode of detecting the hole depth by the through rod manually can remove the unqualified products, the following technical defects often occur in the actual quality inspection process: 1. the diameter of blind hole is little, and consequently the through-rod diameter that corresponds also does for a short time, and the scale size that corresponds is difficult to read, and the problem that the reading made mistakes often appears, and then leads to sneaking into qualified product with unqualified product in, has so not only increased workman's working strength, but also has the defect that the inspection precision is low. 2. The number of blind holes to be detected on an HDI board reaches 8~12, and the workman is with the measurement of logical pole one by one, and this is undoubtedly the quality inspection time that has increased the single HDI board, and then very big reduction quality inspection efficiency.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides HDI board drilling depth detection equipment and a detection method thereof, wherein the HDI board drilling depth detection equipment is compact in structure, improves blind hole depth detection efficiency, lightens working strength of workers and improves hole depth detection precision.
The purpose of the invention is realized by the following technical scheme: the HDI board drilling depth detection device comprises a workbench and a positioning seat, wherein a lifting cylinder is fixedly arranged on a table board of the workbench, a lifting plate is fixedly arranged on an action end of a piston rod of the lifting cylinder, the positioning seat is fixedly arranged on the top surface of the lifting plate, a sunk groove is formed in the top surface of the positioning seat, the transverse width of the sunk groove is smaller than the transverse width of a HDI board to be detected, the longitudinal width of the sunk groove is equal to the longitudinal width of the HDI board, a waist-shaped groove communicated with the sunk groove is formed in the left side wall of the positioning seat, an adjusting cylinder is further fixedly arranged on the outer wall of the left side of the positioning seat, the adjusting cylinder is arranged below the waist-shaped groove, an insulating seat is fixedly arranged on the action end of the piston rod of the adjusting cylinder, the insulating seat is arranged in the waist-shaped groove, a horizontal copper column is fixedly arranged in the insulating seat, the right end head of the horizontal copper column extends into the sunk groove, the outer side of the insulating seat at the left end of the horizontal copper column extends out of the insulating seat, a clamping cylinder is fixedly arranged on the right side wall of the positioning seat, a piston rod of the clamping cylinder extends into the sinking groove, a push plate is fixedly arranged on the extending end of the clamping cylinder, and a rubber pad is fixedly arranged on the left end face of the push plate;
a portal frame is fixedly arranged on the table top of the workbench, a cross beam of the portal frame is arranged right above the sinking groove, a plurality of hole depth detection units corresponding to blind holes to be detected on the HDI plate are arranged on the cross beam, each hole depth detection unit comprises a vertical copper column, a resistance meter, a spring and a guide hole formed in the cross beam, the diameter of the vertical copper column is smaller than that of the blind holes to be detected on the HDI plate, the vertical copper column penetrates through the guide holes and is arranged, the bottom end of the vertical copper column extends below the cross beam, the top end of the vertical copper column extends above the cross beam, and the extension end is fixedly provided with an insulating plate, the vertical copper column is sleeved with a spring, one end of the spring is fixedly arranged on the bottom surface of the insulating plate, the other end of the spring is fixedly arranged on the cross beam, the top end of the vertical copper column is connected with one joint of the ohmmeter through a wire I, the other joint of the ohmmeter is connected with the left end of the horizontal copper column through a wire II, and the ohmmeter is arranged right above the insulating plate.
A through groove is formed in the bottom of the sinking groove, a plurality of guide columns are arranged in the through groove, the guide columns are in sliding fit with the lifting plate, and the bottom end portions of the guide columns are fixedly arranged on the table top of the workbench.
The positioning seat and the lifting plate are made of plastic materials.
The top of crossbeam has set firmly the support, and each ohmmeter all installs in the top of support, and the instrument of each ohmmeter all sets up forward.
The portal frame is characterized in that a mounting plate is fixedly arranged on a stand column of the portal frame, a controller is arranged on the mounting plate, and the controller is connected with an electromagnetic valve of the lifting cylinder, an electromagnetic valve of the adjusting cylinder and an electromagnetic valve of the clamping cylinder.
The method for detecting the HDI board drilling depth by the detection equipment comprises the following steps:
s1, positioning the HDI board to be detected by the tool, wherein the method comprises the following specific operation steps:
s11, a worker flatly places the bottom surface of the HDI plate on the bottom surface of the sinking groove, the HDI plate is ensured to be positioned between the horizontal copper column and the rubber pad, the blind holes to be detected on the HDI plate are ensured to be arranged in an oriented mode, and the front end face and the rear end face of the HDI plate are matched with the front wall and the rear wall of the sinking groove respectively;
s12, a worker firstly controls a piston rod of the adjusting cylinder to extend out or retract, the piston rod drives an insulating seat to synchronously lift, the insulating seat drives a horizontal copper column to synchronously lift, and when the worker observes that the right end of the horizontal copper column is opposite to the left end face of a second conducting circuit layer in the HDI board, the adjusting cylinder is controlled to be closed; then, a worker controls a piston rod of the clamping cylinder to extend leftwards, the piston rod drives the push plate to move leftwards, the push plate drives the rubber pad to synchronously move leftwards, the rubber pad drives the HDI plate to move leftwards along the sinking groove, and when the piston rod of the clamping cylinder completely extends out, the second conductive circuit layer is fixed between the rubber pad and the right end head of the horizontal copper column, so that the positioning of a tool for the HDI plate to be detected is finally realized, and after the positioning, all blind holes to be detected on the HDI plate are respectively and correspondingly located right below the vertical copper columns of all hole depth detection units;
s2, detecting the depth of a blind hole, controlling a piston rod of a lifting cylinder to extend upwards, driving a lifting plate to move upwards by the piston rod, driving a positioning seat and an HDI plate to move upwards synchronously by the lifting plate, enabling each vertical copper column to enter a blind hole to be detected under the vertical copper column respectively in the lifting process of the HDI plate, controlling the lifting cylinder to close by a worker after the piston rod is completely extended, checking the change of a pointer on each ohmmeter by the worker, and if the pointers on all the ohmmeters are changed, indicating that a second conductive circuit layer, the vertical copper columns, a lead I, the ohmmeters, a lead II and a horizontal copper column form a closed loop, wherein the depth of the detected blind hole is equal to the depth of a standard blind hole, namely, each blind hole is communicated with a second conductive circuit layer, and the HDI plate is a qualified product; if the pointers in one or more ohmmeters do not change, it is indicated that the bottom end of the vertical copper pillar corresponding to the ohmmeter does not contact the second conductive circuit layer, and further that the blind hole corresponding to the vertical copper pillar is an over-deep blind hole or an over-shallow blind hole;
s3, after the blind hole depth detection is finished, controlling the piston rod of the lifting cylinder to retract, driving the lifting plate and the positioning seat to move downwards by the piston rod, separating each vertical copper column from the HDI plate, and after the piston rod is reset, controlling the piston rod of the clamping cylinder to retract rightwards by a worker, wherein the HDI plate after detection can be taken out from the sinking groove by the worker;
and S4, repeating the operations of the steps S1-S3, and then performing quality inspection on the HDI boards.
The invention has the following advantages: compact structure, improvement blind hole degree of depth detection efficiency, alleviate workman working strength, improve the hole degree of depth detection precision.
Drawings
FIG. 1 is a schematic structural diagram of a qualified HDI plate;
FIG. 2 is a schematic structural diagram of a unqualified HDI circuit board;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural diagram of the positioning seat;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is an enlarged view of a portion I of FIG. 3;
FIG. 8 is an enlarged view of a portion II of FIG. 3;
FIG. 9 is a schematic diagram of the tool for positioning the HDI board to be detected;
FIG. 10 is a view from the direction B of FIG. 9;
FIG. 11 is a schematic view of the depth of a detection well according to the present invention;
FIG. 12 is an enlarged partial view of section III of FIG. 11;
in the figure, 1-workbench, 2-positioning seat, 3-lifting cylinder, 4-lifting plate, 5-sink groove, 6-kidney groove, 7-adjusting cylinder, 8-insulating seat, 9-horizontal copper column, 10-clamping cylinder, 11-push plate, 12-gantry, 13-beam, 14-hole depth detection unit, 15-vertical copper column, 16-ohmmeter, 17-spring, 18-insulating plate, 19-lead I, 20-lead II, 21-through groove, 22-guide column, 23-rubber pad, 24-bracket, 25-mounting plate, 26-controller, 27-HDI plate, 28-blind hole to be detected, 29-first conductive line layer, 30-second conductive line layer, 31-insulating layer, 32-blind hole, 33-deep blind hole and 34-shallow blind hole.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
as shown in fig. 3 to 8, an HDI plate drilling depth detection device comprises a workbench 1 and a positioning seat 2, wherein a lifting cylinder 3 is fixedly arranged on a table top of the workbench 1, a lifting plate 4 is fixedly arranged on an action end of a piston rod of the lifting cylinder 3, the positioning seat 2 is fixedly arranged on a top surface of the lifting plate 4, the positioning seat 2 and the lifting plate 4 are both made of plastic materials, a sinking groove 5 is formed on the top surface of the positioning seat 2, the transverse width of the sinking groove 5 is smaller than the transverse width of a HDI plate to be detected, the longitudinal width of the sinking groove 5 is equal to the longitudinal width of the HDI plate, a kidney-shaped groove 6 communicated with the sinking groove 5 is formed on a left side wall of the positioning seat 2, an adjusting cylinder 7 is further fixedly arranged on a left side outer wall of the positioning seat 2, the adjusting cylinder 7 is arranged below the kidney-shaped groove 6, an insulating seat 8 is fixedly arranged on an action end of a piston rod of the adjusting cylinder 7, the insulating seat 8 is arranged in the kidney-shaped groove 6, a horizontal copper column 9 is fixedly arranged in the insulating seat 8, the right end of the horizontal copper column 9 extends into the sinking groove 5, the left end of the horizontal copper column 9 extends out of the insulating seat 8, a clamping cylinder 10 is fixedly arranged on the right side wall of the positioning seat 2, a piston rod of the clamping cylinder 10 extends into the sinking groove 5, a push plate 11 is fixedly arranged on the extending end of the piston rod, and a rubber pad 23 is fixedly arranged on the left end face of the push plate 11;
a portal frame 12 is fixedly arranged on the table top of the workbench 1, a cross beam 13 of the portal frame 12 is arranged right above the sinking groove 5, a plurality of hole depth detection units 14 corresponding to blind holes to be detected on the HDI plate are arranged on the cross beam 13, each hole depth detection unit 14 comprises a vertical copper column 15, an ohmmeter 16, a spring 17 and a guide hole formed in the cross beam 13, the diameter of each vertical copper column 15 is smaller than that of the blind hole to be detected on the HDI plate, the vertical copper column 15 penetrates through the guide hole and is arranged, the bottom end of each vertical copper column 15 extends below the cross beam 13, the top end of each vertical copper column 15 extends above the cross beam 13, an insulating plate 18 is fixedly arranged on an extending end, the vertical copper column 15 is sleeved with the spring 17, one end of the spring 17 is fixedly arranged on the bottom surface of the insulating plate 18, the other end of the spring is fixedly arranged on the cross beam 13, the top end of the vertical copper column 15 is connected with one joint of the ohmmeter 16 through a lead I19, and the other joint of the ohmmeter 16 is connected with the left end of the horizontal copper column 9 through a lead II20, the ohmmeter 16 is provided directly above the insulating plate 18.
A through groove 21 is formed in the bottom of the sinking groove 5, a plurality of guide columns 22 are arranged in the through groove 21, the guide columns 22 are in sliding fit with the lifting plate 4, and the bottom end parts of the guide columns 22 are fixedly arranged on the table top of the workbench 1.
The top of crossbeam 13 sets firmly has support 24, and each ohmmeter 16 all installs in the top of support 24, and the instrument of each ohmmeter 16 all sets up forward to make things convenient for the workman to observe the change of pointer on the ohmmeter 16. The mounting panel 25 is fixedly arranged on the upright post of the portal frame 12, the controller 26 is arranged on the mounting panel 25, the controller 26 is connected with the electromagnetic valve of the lifting cylinder 3, the electromagnetic valve of the adjusting cylinder 7 and the electromagnetic valve of the clamping cylinder 10, the piston rods of the lifting cylinder 3, the adjusting cylinder 7 and the clamping cylinder 10 can be conveniently controlled to extend or retract through the controller 26, the operation of workers is facilitated, and the automatic clamping device has the characteristic of high automation degree.
The method for detecting the HDI board drilling depth by the detection equipment comprises the following steps:
s1, positioning the HDI board to be detected by the tool, wherein the method comprises the following specific operation steps:
s11, a worker puts the bottom surface of the HDI plate 27 on the bottom surface of the sinking groove 5 in a flat mode, the HDI plate 27 is ensured to be located between the horizontal copper column 9 and the rubber pad 23, the blind holes 28 to be detected on the HDI plate 27 are ensured to be arranged in an oriented mode, and the front end face and the rear end face of the HDI plate 27 are matched with the front wall and the rear wall of the sinking groove 5 respectively;
s12, a worker firstly controls the piston rod of the adjusting cylinder 7 to extend or retract, the piston rod drives the insulating base 8 to synchronously lift, the insulating base 8 drives the horizontal copper column 9 to synchronously lift, and when the worker observes that the right end head of the horizontal copper column 9 is opposite to the left end face of the second conductive circuit layer 30 in the HDI board 27, the adjusting cylinder 7 is controlled to close; then, a worker controls a piston rod of the clamping cylinder 10 to extend leftwards, the piston rod drives the push plate 11 to move leftwards, the push plate 11 drives the rubber pad 23 to synchronously move leftwards, the rubber pad 23 drives the HDI plate 27 to move leftwards along the sink 5, and after the piston rod of the clamping cylinder 10 completely extends out, the second conductive circuit layer 30 is fixed between the rubber pad 23 and the right end of the horizontal copper column 9, so that the tool positioning of the HDI plate 27 to be detected is finally realized, and after the positioning, all blind holes 28 to be detected on the HDI plate 27 are respectively and correspondingly located right below the vertical copper columns 15 of all hole depth detection units 14 as shown in FIGS. 9-10;
s2, detecting the depth of the blind hole, controlling the piston rod of the lifting cylinder 3 to extend upwards, driving the lifting plate 4 to move upwards by the piston rod, driving the positioning seat 2 and the HDI plate 27 to move upwards synchronously by the lifting plate 4, in the process of lifting the HDI plate 27, each vertical copper column 15 correspondingly enters into the blind hole 28 to be detected which is positioned right below the vertical copper column, after the piston rod is completely extended, as shown in fig. 11-12, the worker controls the lifting cylinder 3 to be closed, and then the worker checks the change of the pointer on each ohmmeter 16, if the pointer on all the ohmmeters 16 changes, it is shown that the second conductive trace layer 30, the vertical copper pillar 15, the conductive line I19, the ohmmeter 16, the conductive line II20 and the horizontal copper pillar 9 form a closed loop, the depth of the detected blind holes is equal to the depth of the standard blind holes, namely, each blind hole 32 is communicated with the second conductive circuit layer 30, and the HDI board is a qualified product; if one or more pointers in the ohmmeters 16 are not changed, it is determined that the bottom end of the vertical copper pillar 15 corresponding to the ohmmeter 16 is not in contact with the second conductive trace layer 30, and further, it is determined that the blind via corresponding to the vertical copper pillar 15 is an over-deep blind via 33 or an over-shallow blind via 34; therefore, this check out test set has realized once only carrying out the hole depth detection to a plurality of blind holes on the HDI board, compares traditional workman's detection hole depth one by one, very big shortening the check-out time of single HDI board, and then very big improvement the detection efficiency of hole depth. In addition, whether the workman changes through the pointer on the direct-viewing inspection ohmmeter 16, can judge whether detected HDI board has too shallow blind hole or too dark blind hole, and then conveniently rejects nonconforming product, compares the tradition and adopts the through-rod to detect, not only very big alleviate workman's working strength, but also very big improvement detect the deep precision of hole.
S3, after the blind hole depth detection is finished, controlling the piston rod of the lifting cylinder 3 to retract, driving the lifting plate 4 and the positioning seat 2 to move downwards by the piston rod, separating each vertical copper column 15 from the HDI plate 27, after the piston rod is reset, controlling the piston rod of the clamping cylinder 10 to retract rightwards by a worker, and taking out the detected HDI plate 27 from the sinking groove 5 by the worker;
and S4, repeating the operations of the steps S1-S3, and then performing quality inspection on the HDI boards.
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 invention. 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 (6)
1. The utility model provides a HDI board drilling depth check out test set which characterized in that: the HDI plate positioning device comprises a workbench (1) and a positioning seat (2), wherein a lifting cylinder (3) is fixedly arranged on a table top of the workbench (1), a lifting plate (4) is fixedly arranged on an action end of a piston rod of the lifting cylinder (3), the positioning seat (2) is fixedly arranged on a top surface of the lifting plate (4), a sinking groove (5) is formed in a top surface of the positioning seat (2), the transverse width of the sinking groove (5) is smaller than the transverse width of a HDI plate to be detected, the longitudinal width of the sinking groove (5) is equal to the longitudinal width of the HDI plate, a waist-shaped groove (6) communicated with the sinking groove (5) is formed in a left side wall of the positioning seat (2), an adjusting cylinder (7) is further fixedly arranged on the outer wall of the left side of the positioning seat (2), the adjusting cylinder (7) is arranged below the waist-shaped groove (6), an insulating seat (8) is fixedly arranged on an action end of a piston rod of the adjusting cylinder (7), and the insulating seat (8) is arranged in the waist-shaped groove (6), a horizontal copper column (9) is fixedly arranged in the insulating seat (8), the right end of the horizontal copper column (9) extends into the sinking groove (5), the left end of the horizontal copper column (9) extends to the outer side of the insulating seat (8), a clamping cylinder (10) is fixedly arranged on the right side wall of the positioning seat (2), a piston rod of the clamping cylinder (10) extends into the sinking groove (5), a push plate (11) is fixedly arranged on the extending end of the piston rod, and a rubber pad (23) is fixedly arranged on the left end face of the push plate (11);
a portal frame (12) is fixedly arranged on the table top of the workbench (1), a cross beam (13) of the portal frame (12) is arranged right above the sinking groove (5), a plurality of hole depth detection units (14) corresponding to blind holes to be detected on the HDI plate are arranged on the cross beam (13), each hole depth detection unit (14) comprises a vertical copper column (15), a resistance meter (16), a spring (17) and a guide hole formed in the cross beam (13), the diameter of each vertical copper column (15) is smaller than that of the blind hole to be detected on the HDI plate, the vertical copper column (15) penetrates through the guide hole, the bottom end of each vertical copper column (15) extends below the cross beam (13), the top end of each vertical copper column (15) extends above the cross beam (13), an insulation plate (18) is fixedly arranged on the extending end, a spring (17) is sleeved on the vertical copper column (15), one end of each spring (17) is fixedly arranged on the bottom surface of the insulation plate (18), the other end of the horizontal copper column is fixedly arranged on the cross beam (13), the top end of the vertical copper column (15) is connected with one joint of the ohmmeter (16) through a lead I (19), the other joint of the ohmmeter (16) is connected with the left end of the horizontal copper column (9) through a lead II (20), and the ohmmeter (16) is arranged right above the insulating plate (18).
2. The HDI board drilling depth check out test set of claim 1 characterized in that: a through groove (21) is formed in the bottom of the sinking groove (5), a plurality of guide columns (22) are arranged in the through groove (21), the guide columns (22) are in sliding fit with the lifting plate (4), and the bottom end portions of the guide columns (22) are fixedly arranged on the table top of the workbench (1).
3. The HDI board drilling depth check out test set of claim 1 characterized in that: the positioning seat (2) and the lifting plate (4) are made of plastic materials.
4. The HDI board drilling depth check out test set of claim 1 characterized in that: the top of crossbeam (13) has set firmly support (24), and each ohmmeter (16) all install in the top of support (24), and the instrument of each ohmmeter (16) all sets up forward.
5. The HDI board drilling depth check out test set of claim 1 characterized in that: the gantry crane is characterized in that a mounting plate (25) is fixedly arranged on an upright post of the gantry frame (12), a controller (26) is arranged on the mounting plate (25), and the controller (26) is connected with an electromagnetic valve of the lifting cylinder (3), an electromagnetic valve of the adjusting cylinder (7) and an electromagnetic valve of the clamping cylinder (10).
6. The method for detecting the drilling depth of the HDI board by the detection equipment according to any one of claims 1-5, wherein the method comprises the following steps: it comprises the following steps:
s1, positioning the HDI board to be detected by the tool, wherein the method comprises the following specific operation steps:
s11, a worker lays the bottom surface of the HDI plate (27) on the bottom surface of the sinking groove (5) horizontally, the HDI plate (27) is ensured to be positioned between the horizontal copper column (9) and the rubber pad (23), and meanwhile, the blind holes (28) to be detected on the HDI plate (27) are ensured to be arranged in an oriented mode, and the front end face and the rear end face of the HDI plate (27) are matched with the front wall and the rear wall of the sinking groove (5) respectively;
s12, a worker firstly controls a piston rod of the adjusting cylinder (7) to extend or retract, the piston rod drives the insulating seat (8) to synchronously lift, the insulating seat (8) drives the horizontal copper column (9) to synchronously lift, and when the worker observes that the right end head of the horizontal copper column (9) is opposite to the left end face of the second conductive circuit layer (30) in the HDI board (27), the adjusting cylinder (7) is controlled to be closed; then, a worker controls a piston rod of the clamping cylinder (10) to extend leftwards, the piston rod drives the push plate (11) to move leftwards, the push plate (11) drives the rubber pad (23) to move leftwards synchronously, the rubber pad (23) drives the HDI plate (27) to move leftwards along the sinking groove (5), after the piston rod of the clamping cylinder (10) extends completely, the second conducting circuit layer (30) is fixed between the rubber pad (23) and the right end of the horizontal copper column (9), and therefore tool positioning of the HDI plate (27) to be detected is finally achieved, and after positioning, blind holes (28) to be detected on the HDI plate (27) are located right below vertical copper columns (15) of hole depth detection units (14) respectively and correspondingly;
s2, detecting the depth of the blind hole, controlling a piston rod of a lifting cylinder (3) to extend upwards, driving a lifting plate (4) to move upwards by the piston rod, driving a positioning seat (2) and an HDI plate (27) to move upwards synchronously by the lifting plate (4), correspondingly entering each vertical copper column (15) into a blind hole (28) to be detected which is positioned right below the vertical copper column (15) in the lifting process of the HDI plate (27), controlling the lifting cylinder (3) to close by a worker after the piston rod is completely extended, then checking the change of a pointer on each ohmmeter (16) by the worker, if the pointer on all the ohmmeters (16) changes, indicating that a closed loop is formed by a second conductive circuit layer (30), the copper vertical column (15), a lead I (19), the meter (16), a lead II (20) and a horizontal copper column (9), and the detected depth of the blind hole is equal to the depth of a standard blind hole, each blind hole (32) is communicated with the second conductive circuit layer (30), and the HDI board is a qualified product; if the pointers in one or more ohmmeters (16) do not change, the bottom end of the vertical copper pillar (15) corresponding to the ohmmeter (16) is not in contact with the second conductive circuit layer (30), and further the blind hole corresponding to the vertical copper pillar (15) is an over-deep blind hole (33) or an over-shallow blind hole (34);
s3, after the blind hole depth detection is finished, controlling a piston rod of the lifting cylinder (3) to retract, driving the lifting plate (4) and the positioning seat (2) to move downwards by the piston rod, separating each vertical copper column (15) from the HDI plate (27), after the piston rod is reset, controlling the piston rod of the clamping cylinder (10) to retract rightwards by a worker, and taking out the detected HDI plate (27) from the sinking groove (5) by the worker;
and S4, repeating the operations of the steps S1-S3, and then performing quality inspection on the HDI boards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111163130.3A CN113587804B (en) | 2021-09-30 | 2021-09-30 | HDI board drilling depth detection equipment and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111163130.3A CN113587804B (en) | 2021-09-30 | 2021-09-30 | HDI board drilling depth detection equipment and detection method thereof |
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| CN113587804A CN113587804A (en) | 2021-11-02 |
| CN113587804B true CN113587804B (en) | 2021-12-14 |
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