CN219474984U

CN219474984U - PCB section sampler

Info

Publication number: CN219474984U
Application number: CN202222550484.XU
Authority: CN
Inventors: 郑栋; 缪勇; 段军; 刘辰鑫
Original assignee: Dongguan Dinglu Electronic Technology Co ltd
Current assignee: Dongguan Dinglu Electronic Technology Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-08-04
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to the technical field of automation equipment, and particularly discloses a PCB slicing sampler. The PCB section sampler comprises a cabinet, a sampling table, an image taking mechanism, a cutting mechanism and a control mechanism, wherein the sampling table is arranged above the cabinet, the cutting mechanism is arranged in the cabinet, the image taking mechanism and the cutting mechanism are both connected with the control mechanism, the sampling table is provided with a first through hole, a sampling replacement plate is arranged in the first through hole, and a sampling hole is formed in the sampling replacement plate; the image capturing mechanism comprises a bracket fixed on the cabinet, an image capturing component and a compressing component are arranged on the bracket, the compressing component is arranged above the sampling hole, the compressing component comprises a compressing plate capable of moving up and down, and the image capturing component is arranged above the compressing plate. According to the utility model, the imaging mechanism is arranged to take a picture of the PCB to be sampled, and then the picture is transmitted to the control mechanism, and an operator controls the cutting mechanism to finish cutting and sampling of the PCB in the selected area according to the imaging result, so that the cutting precision is high, and the sampling result is accurate and reliable.

Description

PCB section sampler

Technical Field

The utility model relates to the technical field of automation equipment, in particular to a PCB slicing sampler.

Background

PCB (Printed Circuit Board) is a printing plate, called "mother of electronic product", for forming inter-dot connections and printed elements on a general-purpose substrate according to a predetermined design, which is a support for interconnecting electronic components, and its appearance characteristics, particularly intrinsic quality characteristics, are extremely important to users. In the process of manufacturing the PCB, in order to confirm whether the produced PCB meets the standard, it is often necessary to sample the whole PCB slice and grind the whole PCB slice to analyze key indexes such as copper thickness, oil film, and whether there is a crack, so that the PCB slice sampler is indispensable. In order to solve the problem, chinese patent CN206832496U discloses a PCB metallographic section sampler, a sample table top of the section sampler is arranged at the top of a frame, a housing is arranged at the top of the sample table top, an upper compression cylinder mounting frame is arranged in the housing, an upper compression cylinder mounting frame is arranged on the upper compression cylinder mounting frame, a dust cover is arranged at the end part of a movable rod of the upper compression cylinder, and a sampling hole is arranged on the sample table top at the bottom of the dust cover; the main transmission equipment is arranged at the bottom of the sample table top and comprises a main shaft motor arranged at the top and a sampling milling cutter arranged on an output shaft of the main shaft motor, a lifting cylinder arranged at the bottom of the main shaft motor, a Y-axis driving device arranged at the bottom of the lifting cylinder and an X-axis driving device arranged at the bottom of the Y-axis driving device. The directions of the X axis and the Y axis are adjusted through the X axis screw and the Y axis screw, and the lifting cylinder drives the spindle motor to move up and down to cut the metallographic section, so that the deformation and damage of the sample are avoided, and the testing precision is ensured.

But this PCB metallographic section sampler has following defect, firstly, the sampler adopts PLC control system to accomplish the action of motor and cylinder and accomplish the cutting, can not realize cutting pattern position automatic correction, if the manual work is irregular at the PCB board of putting on the sample mesa, can lead to cutting accuracy not high, influence the testing result, secondly, this sample mesa designs as an organic wholely, can not satisfy less PCB sample sliced sample demand, the sample hole of this sample mesa is less simultaneously, dismantle very inconvenient when changing the sample gong sword, thirdly, this sampler has only set up the dust cover on the sample mesa, can only avoid the dust that produces in the cutting process not outwards waggle, and can not fundamentally absorb the dust clean, no dust removal effect.

Accordingly, there is a need in the industry for a PCB section sampler that solves the above problems.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a PCB slicing sampler, which comprises a cabinet, a sampling table, an image capturing mechanism, a cutting mechanism and a control mechanism, wherein the sampling table is arranged above the cabinet, the cutting mechanism is arranged in the cabinet, and the image capturing mechanism and the cutting mechanism are connected with the control mechanism, wherein: the sampling platform is provided with a first through hole, a sampling replacement plate is arranged in the first through hole, and a sampling hole is formed in the sampling replacement plate; the image capturing mechanism comprises a bracket fixed on the cabinet, an image capturing component and a compressing component are arranged on the bracket, the compressing component is arranged above the sampling hole, the compressing component comprises a compressing plate capable of moving up and down along the vertical direction, and the image capturing component is arranged above the compressing plate.

Further, the image capturing assembly comprises a camera support, a light source, a camera and a first motor, wherein the light source and the camera are installed on the camera support, the first motor controls the camera to move up and down along the vertical direction, the camera is arranged above the sampling hole, and the light source is arranged below the camera.

Further, the compressing assembly further comprises compressing air cylinders symmetrically arranged on the compressing plate, and a second through hole matched with the position of the camera is formed in the compressing plate.

Further, a PCB section sampler still includes dust absorption mechanism, and dust absorption mechanism includes first dust absorption subassembly, and first dust absorption subassembly includes first protection casing and sets up the first dust extraction on first protection casing, and first protection casing is fixed on the pressure strip.

Further, the cutting mechanism comprises an XYZ moving assembly and a cutting assembly, the cutting assembly comprises a second motor, and the output end of the second motor is connected with a milling cutter.

Further, the dust collection mechanism further comprises a second dust collection assembly, the second dust collection assembly comprises a second protective cover and a second dust collection device, and the second protective cover is sleeved on the outer side of the cutting assembly.

Further, the lower end face of the first through hole is further provided with a connecting piece capable of supporting the sampling replacement plate, and the connecting piece is provided with a third through hole.

Further, the image capturing assembly further comprises a first sensor, a second sensor and a sensing piece, wherein the first sensor and the second sensor are arranged on the camera support, and the sensing piece is fixedly connected with the camera.

Further, the control mechanism comprises a display input integrated machine and a main control assembly, wherein the main control assembly is fixedly arranged in the cabinet, and the display input integrated machine is fixedly arranged on the upper end face of the cabinet.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the PCB slicing sampler, the imaging mechanism is arranged to take pictures of the PCB to be sampled, the pictures are transmitted to the control mechanism, and an operator controls the cutting mechanism to finish cutting and sampling of the PCB in the selected area according to the imaging result, so that the cutting precision is high, and the sampling result is accurate and reliable.

(2) According to the PCB section sampler, the sampling replacement plate is arranged on the first through hole of the sampling table, so that an operator can conveniently replace the sampling replacement plate with the second sampling holes with different sizes on one hand, the sampling requirement of the PCB sample sections with different sizes, especially smaller PCB sample sections, can be met, and on the other hand, the operator can conveniently detach and replace the milling cutter under the sampling table, the working efficiency is improved, and the sampling table is simple in structural design, convenient and practical.

(3) The dust collection mechanism of the PCB slice sampler is designed with an upper group and a lower group, can effectively adsorb and discharge dust and fragments generated in the PCB cutting process, prevents a large amount of dust and fragments from diffusing in the air, prevents operators from sucking, and simultaneously eliminates the potential safety hazard of line short circuit and fire caused by dust deposition.

Drawings

For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an overall explosion structure according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of a partial structure at A according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of a partial structure at B according to an embodiment of the present utility model;

FIG. 5 is an exploded view of a sample stage according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a cutting mechanism according to an embodiment of the present utility model;

wherein: 1-cabinet, 11-fixed support leg, 12-metal caster, 2-sample stage, 21-first through hole, 22-sample exchange plate, 220-sample hole, 23-connector, 230-third through hole, 231-positioning column, 3-imaging mechanism, 31-bracket, 32-imaging assembly, 320-camera bracket, 3201-chute, 321-light source, 322-camera, 323-first motor, 324-first inductor, 325-second inductor, 326-induction plate, 33-pressing assembly, 330-pressing plate, 3300-second through hole, 331-pressing cylinder, 4-cutting mechanism, 41-XYZ moving assembly, 42-cutting assembly, 420-second motor, 421-milling cutter, 5-control mechanism, 51-display input all-in-one, 6-dust-collecting mechanism, 61-first dust-collecting assembly, 610-first shield, 611-first dust-collecting device, 62-second dust-collecting assembly, 620-second shield, 621-second dust-collecting device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, left, right, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

As shown in fig. 1 to 6, the utility model provides a PCB section sampler, which comprises a cabinet 1, a sampling table 2, an image capturing mechanism 3, a cutting mechanism 4 and a control mechanism 5, wherein the sampling table 2 is arranged above the cabinet 1, the cutting mechanism 4 is arranged in the cabinet 1, and the image capturing mechanism 3 and the cutting mechanism 4 are connected with the control mechanism 5, wherein: the sampling platform 2 is provided with a first through hole 21, a sampling replacement plate 22 is arranged in the first through hole 21, and a sampling hole 220 is arranged on the sampling replacement plate 22; the image capturing mechanism 3 comprises a bracket 31 fixed on the cabinet 1, an image capturing component 32 and a compressing component 33 are arranged on the bracket 31, the compressing component 33 is arranged above the sampling hole 220, the compressing component 33 comprises a compressing plate 330 capable of moving up and down along the vertical direction, and the image capturing component 32 is arranged above the compressing plate 330.

In this embodiment, the sampling hole 220 of the sampling exchange plate 22 can be set to various specifications according to the sampling requirement, especially, it is convenient for the operator to cut the smaller-sized sample, in this embodiment, taking the sample with the sampling size of 1cm x 1cm as an example, in the use process of the sampler, the operator firstly places the PCB to be cut on the sampling table 2, adjusts the sampling area to be close to the sampling hole 220, then issues a command through the control mechanism 5, controls the pressing component 33 to press the PCB downwards, fixes the position of the pressing component, then the imaging component 32 photographs the PCB to be sampled, and transmits the generated image information to the control mechanism 5, then the operator inputs a square cutting path with the size of 1cm x 1cm in the control mechanism 5, and issues a cutting command to the cutting mechanism 4, the cutting mechanism 4 controls the XYZ moving component 41 to move according to the cutting path set by the control mechanism 5, and simultaneously starts the cutting component 42 to complete accurate cutting of the PCB sampling slice on the sampling table 2, so that the cutting precision is high, and the sampling result is accurate and reliable.

Specifically, as shown in fig. 2-3, in this embodiment, the image capturing assembly 32 includes a camera bracket 320, a light source 321 mounted on the camera bracket 320, a camera 322, and a first motor 323 for controlling the camera 322 to move up and down along the vertical direction, the first motor 323 is connected with the control mechanism 5, the camera 322 is disposed above the sampling hole 220, the light source 321 is disposed below the camera 322, and after the PCB is manually placed on the sampling table 2, the control mechanism 5 controls the camera 322 to automatically focus according to the thickness of the PCB by controlling the first motor 323, so as to complete clear image capturing. Preferably, the camera 322 is a CCD industrial video camera with good color reproduction, stable image and high resolution.

Specifically, as shown in fig. 2, the pressing assembly 33 in this embodiment further includes a pressing cylinder 331 symmetrically disposed on the pressing plate 330, and the pressing plate 330 is provided with a second through hole 3300 adapted to the position of the camera 322. According to the PCB sampling device, the compressing air cylinder 331 drives the compressing plate 330 to compress the PCB sampling area, so that the PCB is not easy to slide in the cutting process, the compression is more stable, and the accuracy of PCB sampling and cutting is ensured.

Specifically, as shown in fig. 1 to 4, the PCB section sampler in this embodiment further includes a dust collection mechanism 6, where the dust collection mechanism 6 includes a first dust collection assembly 61 and a second dust collection assembly 62, the first dust collection assembly 61 includes a first protection cover 610 and a first dust collection device 611 disposed on the first protection cover 610, and the first protection cover 610 is fixed on the compacting plate 330; the cutting mechanism 4 includes the XYZ moving assembly 41 and the cutting assembly 42, and the second dust collection assembly 62 includes a second shield 620 and a second dust collection device 621, and the second shield 620 is sleeved outside the cutting assembly 42. When the cutting mechanism 4 samples and cuts the PCB, the control mechanism 5 simultaneously starts the dust collection mechanism 6 to work, and sucks the dust and dust generated in the cutting process through the first dust collection device 611 and the second dust collection device 621 respectively, and transfers the dust and dust into an external dust collection box (not shown in the figure) through a connecting pipe, so that a large amount of dust and dust is effectively prevented from being scattered in the surrounding air, and the dust and dust are prevented from being sucked by operators to harm the health. The first protection cover 610 provided in this embodiment can prevent dust and powder generated by cutting the PCB from drifting to the periphery, so as to facilitate centralized dust collection in the first dust collection device 611, and can prevent an operator from touching the cutting assembly 42 by mistake during the cutting process of the PCB, thereby ensuring personal safety of the operator; the lower end face of the second protection cover 620 provided in this embodiment is adapted to the cutting assembly 42, so that part of the fragments generated in the cutting process can fall into the second protection cover 620, and the fragments are prevented from being pushed and accumulated, so that the service life of the device is affected.

Specifically, as shown in fig. 2, fig. 4 and fig. 6, the cutting assembly 42 includes a second motor 420, the output end of the second motor 420 is connected with a milling cutter 421, in this embodiment, the milling cutter 421 is a milling cutter, the cutting assembly 42 is fixedly mounted on the XYZ moving assembly 41, the control mechanism 5 controls the XYZ moving assembly 41 to move, and further controls the milling cutter to cut the PCB according to the input cutting path, and the cutting mechanism 4 is not described in detail herein.

Specifically, as shown in fig. 2 and 5, in this embodiment, a connecting piece 23 capable of supporting the sampling exchange plate 22 is further provided on the lower end surface of the first through hole 21, and a third through hole 230 is provided on the connecting piece 23. Be equipped with the connecting hole on the connecting piece 23, operating personnel's accessible bolt carries out fixed connection with sampling station 2, still is equipped with on the connecting piece 23 up end with the sampling change board 22 down terminal surface looks adaptation reference column 231, the sampling change board 22 of being convenient for is stably placed on connecting piece 23.

Specifically, as shown in fig. 2-3, the image capturing assembly 32 in this embodiment further includes a first sensor 324, a second sensor 325, and a sensing piece 326, where the first sensor 324 and the second sensor 325 are disposed on the camera support 320, and the sensing piece 326 is fixedly connected to the camera 32. In order to prevent the camera 322 from collision when moving up and down, the utility model respectively sets the second sensor 325 and the first sensor 324 to limit the camera 322 up and down, when the camera 322 receives a command to photograph the PCB and automatically focuses, the sensing piece 326 connected with the camera 322 moves along with the camera, when the sensing piece 326 moves to the positions of the first sensor 324 and the second sensor 325, a signal is sent to the control mechanism 5, and the control mechanism 5 controls the first motor 323 to stop working.

Specifically, as shown in fig. 1-2, in this embodiment, the control mechanism 5 includes a display-input integrated machine 51 and a main control assembly (not shown in the drawings), the main control assembly is fixedly installed inside the cabinet 1, and the display-input integrated machine 51 is fixedly installed on an upper end surface of the cabinet 1. When the camera 322 finishes photographing and taking an image of the PCB to be sampled, the image information of the PCB is transmitted to the control mechanism 5, an operator inputs a cutting path with a specified size in the control mechanism 5 according to the sampling requirement and moves the cutting path to the accurate position of the image information, and the milling cutter in the cutting assembly 42 performs cutting operation on the PCB according to the cutting path, so that the cut sample meets the sampling requirement.

Specifically, as shown in fig. 1-2, in this embodiment, a cabinet 1 is provided with a fixing support leg 11 capable of being adjusted up and down and a metal caster 12 capable of rolling.

The working principle of the PCB section sampler is as follows:

firstly, an operator selects a sampling replacement plate 22 with a sampling hole with a proper size according to sampling requirements to be mounted on a connecting piece 23, then the whole PCB to be sampled is placed on a sampling table 2, the position of the sampling replacement plate is adjusted to enable a sampling area to be located near the sampling hole 220 of the sampling replacement plate 22, then a control mechanism 5 is operated, an image capturing mechanism 3 is started to complete compaction image capturing operation of the PCB to be sampled, then the sampling size is input on the control mechanism 5, a cutting path of the sampling replacement plate is adjusted to a correct sampling position, and then a cutting mechanism 4 and a dust collection mechanism 6 are started at the same time to cut and collect dust according to a designated cutting path until the sampling cutting of the PCB is finished. It should be noted that, when the control mechanism 5 outputs the cutting command to the cutting mechanism 4, the distance between the cutting end point of the milling cutter 421 and the cutting start point is controlled to be 0.2-0.5 mm, so as to ensure that the PCB slice does not fall into the sampler, and an operator only needs to take down the PCB and then press the cutting position to take down the slice. When the milling cutter 421 needs to be replaced, the cutter replacing operation can be completed by only removing the sampling replacing plate 22 and passing through the first through hole 21.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.

Claims

1. The utility model provides a PCB section sampler, its characterized in that includes rack (1), sample platform (2), gets image mechanism (3), cutting mechanism (4) and control mechanism (5), sample platform (2) set up the top of rack (1), cutting mechanism (4) set up in rack (1), get image mechanism (3) with cutting mechanism (4) all with control mechanism (5) are connected, wherein:

the sampling platform (2) is provided with a first through hole (21), a sampling replacement plate (22) is arranged in the first through hole (21), and a sampling hole (220) is formed in the sampling replacement plate (22);

the imaging mechanism (3) comprises a support (31) fixed on the cabinet (1), an imaging component (32) and a compressing component (33) are arranged on the support (31), the compressing component (33) is arranged above the sampling hole (220), the compressing component (33) comprises a compressing plate (330) capable of moving up and down along the vertical direction, and the imaging component (32) is arranged above the compressing plate (330).

2. The PCB section sampler of claim 1 wherein the image capturing assembly (32) comprises a camera support (320) and a light source (321) mounted on the camera support (320), a camera (322) and a first motor (323) controlling the camera (322) to move up and down in a vertical direction, the camera (322) being disposed above the sampling hole (220), the light source (321) being disposed below the camera (322).

3. The PCB section sampler of claim 2, wherein the pressing assembly (33) further comprises a pressing cylinder (331) symmetrically arranged on the pressing plate (330), and the pressing plate (330) is provided with a second through hole (3300) adapted to the position of the camera (322).

4. The PCB section sampler of claim 1 further comprising a dust extraction mechanism (6), the dust extraction mechanism (6) comprising a first dust extraction assembly (61), the first dust extraction assembly (61) comprising a first shield (610) and a first dust extraction device (611) disposed on the first shield (610), the first shield (610) being secured to the compacting plate (330).

5. The PCB section sampler of claim 4, characterized in that the cutting mechanism (4) comprises an XYZ moving assembly (41) and a cutting assembly (42), the cutting assembly (42) comprises a second motor (420), and the output end of the second motor (420) is connected with a milling cutter (421).

6. The PCB section sampler of claim 5 wherein the dust extraction mechanism (6) further comprises a second dust extraction assembly (62), the second dust extraction assembly (62) comprising a second shield (620) and a second dust extraction device (621), the second shield (620) being sleeved outside the cutting assembly (42).

7. The PCB section sampler according to claim 1, characterized in that a connecting piece (23) capable of supporting the sampling exchange plate (22) is further provided on the lower end surface of the first through hole (21), and a third through hole (230) is provided on the connecting piece (23).

8. The PCB section sampler of claim 2 wherein the imaging assembly (32) further comprises a first sensor (324), a second sensor (325) and a sensor blade (326), the first sensor (324) and the second sensor (325) being disposed on the camera support (320), the sensor blade (326) being fixedly connected to the camera (322).

9. The PCB section sampler of claim 1, wherein the control mechanism (5) comprises a display input integrated machine (51) and a main control assembly, the main control assembly is fixedly installed inside the cabinet (1), and the display input integrated machine (51) is fixedly installed on the upper end face of the cabinet (1).