CN210089657U

CN210089657U - PCB detection device

Info

Publication number: CN210089657U
Application number: CN201920960049.XU
Authority: CN
Inventors: 易真江; 罗告京; 张念华
Original assignee: Guangdong Chinese Testing Robot Ltd By Share Ltd
Current assignee: Guangdong Chinese Testing Robot Ltd By Share Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-02-18
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to the technical field of plating layer thickness measurement, in particular to a PCB detection device, which comprises a frame, a conveying mechanism arranged on the frame and used for conveying plates to be detected, and a thickness measuring mechanism used for measuring the plating layer thickness of the plates to be detected; the thickness measuring mechanism comprises a lifting frame capable of moving along the direction of a conveying surface close to and far away from the conveying mechanism, the lifting frame is connected with a plurality of rows of probes distributed at intervals, and the number of each row of probes is provided with a plurality of probes. When detecting cladding material thickness, conveying mechanism carries the plate that awaits measuring to thickness measuring mechanism, and later the crane drives multirow probe and is close to and butt in the plate that awaits measuring, because multirow probe interval distribution to can detect simultaneously in each position of the plate that awaits measuring butt, and then improved the efficiency that PCB cladding material thickness detected.

Description

PCB detection device

Technical Field

The utility model relates to a cladding material thickness measurement technical field especially relates to a PCB detection device.

Background

The circuit board is the most demanding board for electronic manufacturing industry. The board needs to carry out copper facing processing when the circuit board is made, and the thickness of copper coating can influence the result of use of circuit board in the later stage, so need carry out copper coating thickness detection after the circuit board copper facing.

The general copper thickness testing equipment comprises a rack, a probe and a tester for measuring the thickness, a control system, a conveying belt and the like, wherein the conveying belt is used for continuously conveying a plate to be tested to sequentially pass through the corresponding position of the probe; when the plate that awaits measuring corresponds the position through the probe, control system will control drive arrangement drive probe and draw close and contact with the plate to the plate that awaits measuring, then the probe detects the thickness of plate copper coating, and the probe is connected with the tester electricity, and the tester is connected with control system electricity, and control system connects the plate coating thickness data that receive to be measured out, then calculates the output result and generates report data.

Because the plate that awaits measuring usually has many kinds and has different big or small specifications, when testing great plate, in order to improve the precision that detects, the probe need select a plurality of check points on the plate, then detects one by one, every check point that detects like this all needs control system control drive arrangement to go up and down once, has reduced the efficiency that detects undoubtedly.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims at providing a PCB detection device to improve the efficiency that PCB cladding material thickness detected.

The above technical purpose of the present invention can be achieved by the following technical solutions: a PCB detection device comprises a rack, a conveying mechanism and a thickness measuring mechanism, wherein the conveying mechanism is arranged on the rack and used for conveying a plate to be detected; the thickness measuring mechanism comprises a lifting frame, the lifting frame can move along the direction of a conveying surface close to and far away from the conveying mechanism, the lifting frame is connected with a plurality of rows of probes distributed at intervals, and the number of each row of probes is provided with a plurality of probes.

Further, the lifting frame is provided with an adjusting part for adjusting the position of the probe.

Further, the adjusting part comprises a plurality of cross rods which are arranged along the conveying direction of the conveying mechanism and are connected to the lifting frame in a sliding mode, and each cross rod is connected with a plurality of probes.

Furthermore, the probe is connected to the cross rod in a sliding mode, and the projection of the sliding track of the probe and the projection of the conveying track of the conveying mechanism on the horizontal plane are intersected.

Further, the conveying mechanism comprises a plurality of conveying wheels which are rotatably connected to the rack and a driving assembly which is used for driving the plate to be detected to move on the conveying wheels.

Furthermore, the rack is connected with a plurality of parallel bearing rods in a sliding manner, each bearing rod is connected with a plurality of conveying wheels in a rotating manner, and the sliding tracks of the bearing rods are intersected with the projection of the conveying tracks of the conveying mechanism on the horizontal plane.

Further, the driving assembly comprises a plurality of thumb cylinders connected to the rack in a sliding mode along the conveying direction of the conveying wheels, and a synchronous belt assembly used for driving the thumb cylinders to move.

Furthermore, the thumb cylinders are divided into two groups which act synchronously, one group of thumb cylinders clamps the plate to be measured and moves into the position right below the thickness measuring mechanism, and the other group of thumb cylinders clamps the plate to be measured and moves out of the position right below the thickness measuring mechanism.

Further, the two groups of thumb cylinders are respectively arranged on two sides of the conveying wheel;

the group of thumb cylinders are used for clamping the plate to be measured and moving the plate to be measured from the starting point of the conveying wheel to the position right below the thickness measuring mechanism;

and the other group of thumb cylinders are used for clamping the plate to be measured and moving the plate to the end point of the conveying wheel from the position right below the thickness measuring mechanism.

Furthermore, the two groups of thumb cylinders are arranged on the same side of the conveying wheel in tandem;

when the plate to be measured clamped by the front group of thumb cylinders is positioned at the starting point of the conveying wheel, the plate to be measured clamped by the rear group of thumb cylinders is positioned right below the thickness measuring mechanism;

when the plate to be measured clamped by the front group of thumb cylinders is positioned right below the thickness measuring mechanism, the plate to be measured clamped by the rear group of thumb cylinders is positioned at the end point of the conveying wheel.

The utility model has the advantages that: when detecting cladding material thickness, conveying mechanism carries the plate that awaits measuring to thickness measuring mechanism, and later the crane drives multirow probe and is close to and butt in the plate that awaits measuring, because multirow probe interval distribution to can detect simultaneously in each position of the plate that awaits measuring butt, and then improved the efficiency that PCB cladding material thickness detected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a conveying mechanism and a thickness measuring mechanism in a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a conveying member according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a lifting member and a centering member in a first embodiment of the present invention.

Reference numerals: 1. a frame; 2. a conveying mechanism; 21. a transfer wheel; 22. a drive assembly; 221. a thumb cylinder; 222. a timing belt assembly; 23. a carrier bar; 3. a thickness measuring mechanism; 31. a lifting frame; 32. a probe; 33. a cross bar; 4. a plate arranging mechanism; 5. a conveying member; 51. a driving roller; 52. a roller sheet; 6. a lifting member; 61. a bracket; 62. a first driving member; 63. a riding wheel; 7. a centering component; 71. a left baffle frame; 72. a right baffle frame; 73. a second driving member.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The first embodiment is as follows: a PCB detection device, see fig. 1 and fig. 2, comprises a frame 1, a conveying mechanism 2 arranged on the frame 1 and used for conveying a plate to be detected, and a thickness measuring mechanism 3 used for measuring the thickness of a plating layer of the plate to be detected; the thickness measuring mechanism 3 comprises a lifting frame 31, the lifting frame 31 can move along the direction of a conveying surface close to and far away from the conveying mechanism 2, the lifting frame 31 is connected with a plurality of rows of probes 32 distributed at intervals, and the number of each row of probes 32 is provided with a plurality of probes.

When detecting cladding material thickness, conveying mechanism 2 will await measuring the plate and carry to thickness measuring mechanism 3 under, later crane 31 drives multirow probe 32 and is close to and butt in the plate that awaits measuring, because multirow probe 32 interval distribution to can detect simultaneously in each position of the plate that awaits measuring butt, and then improve the efficiency that PCB cladding material thickness detected.

In this embodiment, thickness measuring mechanism 3 is provided with two sets ofly to be located conveying mechanism 2's top and below respectively, can detect the positive and negative two-sided cladding material thickness of the plate that awaits measuring like this, further improved the efficiency that detects.

Specifically, the crane 31 is provided with an adjusting part for adjusting the position of the probe 32, so that the position of the probe 32 can be adjusted at any time according to the actual size of the plate to be detected by the plurality of probes 32, and the detection accuracy is improved.

Specifically, the adjusting component includes a plurality of cross bars 33 arranged along the conveying direction of the conveying mechanism 2 and slidably connected to the crane 31, each cross bar 33 is connected with a plurality of probes 32, the cross bars 33 are positioned by screws (not shown in the figure), in this embodiment, three cross bars 33 are respectively arranged on the upper side and the lower side of the conveying mechanism 2, nine probes 32 are respectively arranged on the upper side and the lower side of the conveying mechanism 2, and three probes 32 are connected to each cross bar 33 and are distributed at equal intervals. Of course, the number of the cross bars 33 and the number of the probes 32 can be adjusted arbitrarily according to actual conditions.

In this embodiment, the lifting frames 31 located at the upper and lower sides of the conveying mechanism 2 are raised and lowered by air cylinders connected to the frame 1.

When the position of the probe 32 needs to be adjusted, the sliding cross bar 33 adjusts the spacing, so that the distribution of the probe 32 along the conveying track direction of the conveying mechanism 2 is more uniform.

Specifically, the probe 32 is slidably connected to the cross bar 33, and the sliding track of the probe 32 intersects with the projection of the conveying track of the conveying mechanism 2 on the horizontal plane, in this embodiment, the sliding track of the probe 32 is perpendicular to the projection of the conveying track of the conveying mechanism 2 on the horizontal plane, so that the probe 32 is more uniformly distributed along the direction perpendicular to the conveying track of the conveying mechanism 2, and in combination with the above, not only the transverse movement of the probe 32 but also the longitudinal movement of the probe 32 is realized, so that the adjustment of each point position of the probe 32 is facilitated.

Of course, according to practical situations, the adjusting component may also be a lifting platform (not shown) provided on the lifting frame 31, the lifting platform is provided with an iron plate surface (not shown), and then a magnet (not shown) is installed on each probe 32 and is attached to the iron plate surface; when the position of the probe 32 needs to be adjusted, the change of each point position of the probe 32 can be realized only by sliding the magnet.

Specifically, the conveying mechanism 2 includes a plurality of conveying wheels 21 rotatably connected to the frame 1 and a driving assembly 22 for driving the plate to be tested to move on the conveying wheels 21. Frame 1 sliding connection has many carrier bars 23 that are parallel to each other, and every carrier bar 23 rotates and is connected with a plurality ofly transfer gear 21, the slip orbit of carrier bar 23 and conveying mechanism 2's the projection of orbit on the horizontal plane is crossing, and carrier bar 23 passes through the screw (not shown in the figure) location, and in this embodiment, the quantity of carrier bar 23 is provided with four, and two a set of symmetry of each other, and the probe 32 that is located the plate below that awaits measuring like this is when the thickness measurement, when carrier bar 23 interferes probe 32 butt plate that awaits measuring, adjustable slip carrier bar 23 to stagger with probe 32, the probe 32 of bottom of being convenient for passes the space and carries out the thickness measurement to the plate that awaits measuring. In the present embodiment, the sliding track of the carrier bar 23 and the sliding track of the conveying mechanism 2 are perpendicular to each other in projection on a horizontal plane. Of course, the conveying mechanism 2 may also adopt a conveyor belt mechanism (not shown) or a chain conveying mechanism (not shown) according to actual conditions.

Specifically, the driving assembly 22 includes a plurality of thumb cylinders 221 slidably connected to the frame 1 along the conveying direction of the conveying wheel 21, and a synchronous belt assembly 222 for driving the thumb cylinders 221 to move, and the synchronous belt assembly 222 includes a driven wheel and a driving wheel rotatably connected to the frame 1, a motor for driving the driving wheel to rotate, and a synchronous belt sleeved on the driving wheel and the driven wheel. The thumb cylinder 221 is used for clamping the board to be tested to realize the movement of the board to be tested on the transfer wheel 21.

Specifically, the thumb cylinders 221 are divided into two groups which act synchronously, one group of thumb cylinders 221 clamps the plate to be measured and moves into the position right below the thickness measuring mechanism 3, and the other group of thumb cylinders 221 clamps the plate to be measured and moves out of the position right below the thickness measuring mechanism 3. Therefore, the two groups of thumb cylinders 221 act alternately, and the efficiency of feeding before and after thickness measurement of the plate to be measured is improved.

In this embodiment, two sets of thumb cylinders 221 are respectively disposed on two sides of the conveying wheel 21; a group of thumb cylinders 221 for clamping the plate to be measured to move from the starting point of the conveying wheel 21 to the position right below the thickness measuring mechanism 3; the other group of thumb cylinders 221 is used for clamping the plate to be measured and moving the plate to the end point of the conveying wheel 21 from the position right below the thickness measuring mechanism 3. In addition, each group is provided with two thumb cylinders 221, and the two thumb cylinders 221 simultaneously clamp one plate to be measured, so that the movement is more stable.

Certainly, in actual production, in order to improve the stability of the plate to be detected in the process of detecting the thickness of the coating, the two groups of thumb cylinders can be driven to clamp the plate to be detected together in tandem. Such as: when the plate to be measured is thin, the clamping can be carried out in the mode in consideration of the strength problem of the plate to be measured.

Referring to fig. 3 and 4 in combination with fig. 1, in addition, the PCB detection apparatus further includes a plate-arranging mechanism 4 disposed at the front side of the thickness measuring mechanism 3 and mounted on the frame 1, where the plate-arranging mechanism 4 includes a conveying component 5, a lifting component 6 for lifting the plate to be detected from the conveying component 5, and a centering component 7 for placing the plate to be detected in the middle of the conveying component 5. The plate to be detected of different types often has different length and width specifications, and the plate to be detected can also deviate to one side of the conveying component 5 due to shaking and other reasons in the conveying process, or the plate to be detected deviates from the conveying direction due to deflection at a certain angle; through the structure, before the plate to be measured enters the position corresponding to the thickness measuring mechanism 3, the plate to be measured is lifted from the conveying part 5, then the plate to be measured is centered in the middle position of the conveying part 5, and then the plate to be measured is placed back to the conveying part 5 for transportation, so that the test point on the plate to be measured can be accurately conveyed to the position corresponding to the thickness measuring mechanism 3 under the conveying of the conveying part 5.

In this embodiment, specifically, the lifting component 6 includes a bracket 61 disposed below the conveying surface of the conveying component 5, a first driving component 62 driving the bracket 61 to move up and down, and a plurality of supporting rollers 63 rotatably connected to the bracket 61, wherein the rotation axis of the supporting rollers 63 is parallel to the conveying direction of the conveying component 5; during the up and down movement of the carriage 61, the riding wheels 63 will pass through the conveying surface of the conveying component 5. The first drive member 62 is preferably a lift cylinder.

In this embodiment, preferably, the conveying component 5 includes a plurality of driving rollers 51 arranged in parallel at intervals, all the driving rollers 51 are driven by a motor and a gear mechanism to rotate synchronously, the driving rollers 51 are connected with roller sheets 52 arranged at intervals and made of colloid, and the supporting roller 63 is arranged below the interval position of the driving rollers 51 and at a position avoiding the roller sheets 52; of course, according to practical circumstances, the conveying component 5 may be selected to adopt other forms such as a conveyor belt besides the above-mentioned preferred form; for example, when conveyor belts are used, a plurality of conveyor belts (not shown) may be provided at intervals, with the idlers 63 being provided at spaced locations between the conveyor belts.

The centering component 7 comprises a left blocking frame 71 and a right blocking frame 72 which are respectively arranged at the left side and the right side of the bracket 61, and a second driving piece 73 which drives the left blocking frame 71 and the right blocking frame 72 to approach or move away from each other. In this embodiment, the second driving element 73 is preferably a motor-driven timing belt mechanism. Of course, depending on the actual situation, the second driving member 73 may alternatively adopt other types of structures besides the preferred ones described above; for example, a screw rod mechanism (not shown in the figure) driven by a motor can be adopted, two ends of the screw rod are respectively provided with two sections of threads (not shown in the figure) with opposite turning directions, and the two sections of threads are respectively connected with the left blocking frame 71 or the right blocking frame 72; for example, two motors (not shown) may be used to drive the left and

right racks

71 and 72 to move in opposite directions.

Example two: the present embodiment is different from the first embodiment in that: the two sets of thumb cylinders 221 are installed at different positions (not shown in the figure), and in this embodiment, the two sets of thumb cylinders 221 are disposed on the same side of the conveying wheel 21 in tandem; when the plate to be measured clamped by the front group of thumb cylinders 221 is positioned at the starting point of the conveying wheel 21, the plate to be measured clamped by the rear group of thumb cylinders 221 is positioned right below the thickness measuring mechanism 3; when the plate to be measured clamped by the front group of thumb cylinders 221 is positioned right below the thickness measuring mechanism 3, the plate to be measured clamped by the rear group of thumb cylinders 221 is positioned at the end point of the conveying wheel 21.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The above embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the present invention.

Claims

1. The PCB detection device is characterized in that: the plate thickness measuring device comprises a rack (1), a conveying mechanism (2) and a thickness measuring mechanism (3), wherein the conveying mechanism (2) is arranged on the rack (1) and is used for conveying a plate to be measured; thickness measuring mechanism (3) include crane (31), crane (31) can be followed and are close to and keep away from the transport surface direction removal of conveying mechanism (2), crane (31) are connected with interval distribution's multirow probe (32), and the quantity of every row of probe (32) is provided with a plurality of.

2. The PCB inspection apparatus of claim 1, wherein: the lifting frame (31) is provided with an adjusting component for adjusting the position of the probe (32).

3. The PCB inspection apparatus of claim 2, wherein: the adjusting part comprises a plurality of cross rods (33) which are arranged along the conveying direction of the conveying mechanism (2) and are connected to the lifting frame (31) in a sliding mode, and each cross rod (33) is connected with a plurality of probes (32).

4. A PCB inspection apparatus as claimed in claim 3, wherein: the probe (32) is connected to the cross rod (33) in a sliding mode, and the projection of the sliding track of the probe (32) and the projection of the conveying track of the conveying mechanism (2) on the horizontal plane are intersected.

5. A PCB inspection device according to any of claims 1 to 4, wherein: the conveying mechanism (2) comprises a plurality of conveying wheels (21) which are rotatably connected to the rack (1) and a driving assembly (22) which is used for driving the plate to be tested to move on the conveying wheels (21).

6. The PCB inspection device of claim 5, wherein: the machine frame (1) is connected with a plurality of parallel bearing rods (23) in a sliding mode, each bearing rod (23) is connected with a plurality of conveying wheels (21) in a rotating mode, and the projections of the sliding track of each bearing rod (23) and the projection of the conveying track of the conveying mechanism (2) on the horizontal plane are intersected.

7. The PCB inspection device of claim 5, wherein: the driving assembly (22) comprises a plurality of thumb cylinders (221) which are connected to the machine frame (1) in a sliding mode along the conveying direction of the conveying wheel (21), and a synchronous belt assembly (222) used for driving the thumb cylinders (221) to move.

8. The PCB inspection device of claim 7, wherein: the thumb cylinders (221) are divided into two groups which act synchronously, one group of thumb cylinders (221) clamps the plate to be measured and moves into the position right below the thickness measuring mechanism (3), and the other group of thumb cylinders (221) clamps the plate to be measured and moves out of the position right below the thickness measuring mechanism (3).

9. The PCB inspection apparatus of claim 8, wherein: the two groups of thumb cylinders (221) are respectively arranged on two sides of the conveying wheel (21);

the thumb cylinders (221) are used for clamping the plate to be measured and moving the plate to be measured from the starting point of the conveying wheel (21) to the position right below the thickness measuring mechanism (3);

the other group of thumb cylinders (221) is used for clamping the plate to be measured and moving the plate to the end point of the conveying wheel (21) from the position right below the thickness measuring mechanism (3).

10. The PCB inspection apparatus of claim 8, wherein: the two groups of thumb cylinders (221) are arranged on the same side of the conveying wheel (21) in tandem;

when the plate to be measured clamped by the front group of thumb cylinders (221) is positioned at the starting point of the conveying wheel (21), the plate to be measured clamped by the rear group of thumb cylinders (221) is positioned right below the thickness measuring mechanism (3);

when the plate to be measured clamped by the front group of thumb cylinders (221) is positioned right below the thickness measuring mechanism (3), the plate to be measured clamped by the rear group of thumb cylinders (221) is positioned at the end point of the conveying wheel (21).