CN213147718U - PCB board check out test set - Google Patents
PCB board check out test set Download PDFInfo
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- CN213147718U CN213147718U CN202022189758.8U CN202022189758U CN213147718U CN 213147718 U CN213147718 U CN 213147718U CN 202022189758 U CN202022189758 U CN 202022189758U CN 213147718 U CN213147718 U CN 213147718U
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Abstract
The utility model relates to a technical field is measured to the PCB board, in particular to PCB board check out test set. The device comprises a base, a computer control system, a copper thickness measuring head, a camera device and three driving mechanisms, wherein the copper thickness measuring head, the camera device and the three driving mechanisms are respectively connected with the computer control system; the camera device is slidably mounted on the Z-axis driving mechanism, an air cylinder is slidably arranged on the Z-axis driving mechanism, the copper thickness measuring head is movably connected to the air cylinder, the fine adjustment driving piece is connected with the computer control system to drive the copper thickness measuring head to move, and a built-in algorithm of the computer control system is used for determining the line width of the PCB to be measured according to an image shot by the camera device. The detection equipment realizes the function of simultaneously measuring the copper thickness and the line width of the PCB and improves the detection efficiency of the PCB.
Description
Technical Field
The utility model relates to a technical field is measured to the PCB board, in particular to PCB board check out test set.
Background
A Printed Circuit Board (PCB) is a carrier to which electronic components are electrically connected. Currently, with the development of PCB in the direction of refinement and portability, the circuit manufacturing capability becomes more and more the key index for examining the technical level of PCB manufacturers. There are many factors that influence the circuit fabrication, among which the copper thickness and the line width are the main factors that determine the circuit fabrication capability. Therefore, before the product is shipped from a factory, a PCB manufacturer needs to measure the thickness and the line width of the copper foil on the surface of the PCB to detect whether the PCB meets the customer requirements to reject unqualified products and count the qualification rate.
At present, the copper thickness of the PCB is mostly measured in a way that a copper thickness measuring head is manually held to contact a copper foil on the surface of the PCB, and the line width of the PCB is mostly measured by line width measuring mechanical equipment. However, when a worker measures a PCB, two sets of devices are required to measure the line width and the copper thickness respectively, which causes labor waste and low detection efficiency. Therefore, an integrated inspection apparatus capable of simultaneously measuring the line width and the copper thickness is urgently needed.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of above-mentioned prior art, the utility model provides a PCB board check out test set can simultaneous measurement linewidth and copper thick, effectively improves detection efficiency.
A PCB board detection device comprises a base, a computer control system, a copper thickness measuring head and a camera device which are respectively connected with the computer control system, wherein an X-axis driving mechanism, a Y-axis driving mechanism and a Z-axis driving mechanism which are respectively connected with the computer control system are arranged on the base;
the Z-axis driving mechanism is slidably mounted on the X-axis driving mechanism, and the X-axis driving mechanism is slidably mounted on the Y-axis driving mechanism;
the camera device is slidably mounted on the Z-axis driving mechanism and used for collecting an image of a measurement area of the PCB to be measured and transmitting the image to the computer control system, and a built-in algorithm of the computer control system is used for analyzing the image to determine the line width of the PCB to be measured;
the Z-axis driving mechanism is provided with a fine adjustment driving piece in an upward sliding mode, the copper thick measuring head is movably connected to the fine adjustment driving piece, the fine adjustment driving piece is connected with the computer control system, and the fine adjustment driving piece is used for driving the copper thick measuring head to move to be in contact with the board surface of the PCB to be measured.
Optionally, the fine adjustment driving part is an air cylinder, the Z-axis driving mechanism comprises a first driving motor, a first lead screw arranged at one end of the first driving motor, and first guide rails arranged on two sides of the first lead screw, first sliding blocks are arranged on the first guide rails, a lifting plate is arranged on the first sliding blocks, and the air cylinder and the camera device are respectively arranged on the lifting plate.
Optionally, the end cover fixedly connected with probe fixing base of cylinder, the probe fixing base is connected with the probe latch segment, the probe fixing base with the assembly of probe latch segment is formed with and is used for fixing the through-hole of thick measuring head of copper.
Optionally, the image pickup apparatus includes a charge-coupled device, a lens barrel, and a light source assembly, which are connected in sequence, the lifting plate is provided with a lens barrel fixing seat and a lens barrel locking block, and the lens barrel fixing seat and the lens barrel locking block are assembled to form a through hole for fixing the image pickup apparatus.
Optionally, the Y-axis driving mechanism includes a linear motor, second guide rails arranged in parallel on two sides of the linear motor, and a sliding connection plate arranged on the linear motor, the sliding connection plate is connected with second sliders on the second guide rails on two sides, and a beam support seat on the X-axis driving mechanism is fixed on the second sliders.
Optionally, the vacuum adsorption device further comprises an adsorption platform, the adsorption platform is arranged above the sliding connection plate, a plurality of adsorption holes are formed in the adsorption platform, an air chamber is arranged on a bottom plate of the adsorption platform, and the air chamber is connected with a vacuum adsorption device.
Optionally, the bottom plate of the adsorption platform is provided with at least two air chambers, each air chamber corresponds to a different adsorption hole, and is respectively connected in series with an electromagnetic valve, and each electromagnetic valve can work independently.
Optionally, a sensor fixing plate is arranged on the lifting plate, an anti-collision sensor is arranged on the sensor fixing plate, the anti-collision sensor is parallel to the position of the camera device, and the anti-collision sensor is used for monitoring the distance between the light source assembly and the adsorption platform.
Optionally, the display is arranged on the base.
Optionally, the Y-axis driving mechanism includes a grating ruler, the grating ruler includes a scale grating and a grating reading head, the grating reading head is fixed on the beam support seat, and the scale grating and the second guide rail are arranged in parallel.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a check out test set includes computer control system, the thick measuring head of copper, camera device, computer control system control X axle actuating mechanism, Y axle actuating mechanism, Z axle actuating mechanism's motion path removes with the thick measuring head of drive copper, and simultaneously, computer control system still controls the fine setting driving piece, the position of fine setting driving piece through continuing to adjust the thick measuring head of copper, make the thick measuring head of copper contact the face of the PCB board that awaits measuring, the function of the thick and line width of copper of this check out test set simultaneously has been realized from this, the detection efficiency of PCB board has greatly been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is an internal schematic view of a PCB detection apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic view of a Y-axis driving mechanism of a PCB detection apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of a Z-axis driving mechanism, a copper thickness measuring head and a camera device of the PCB inspection apparatus provided in the embodiment of the present invention;
fig. 4 is the embodiment of the utility model provides a PCB board check out test set's adsorption platform bottom sketch map.
Illustration of the drawings: the device comprises a base 1, a copper thickness measuring head 2, a camera 3, an X-axis driving mechanism 4, a Y-axis driving mechanism 5, a Z-axis driving mechanism 6, a cylinder 7, a display 8, an adsorption platform 9, an air chamber 10 and an anti-collision sensor 11;
the linear motor comprises a charge coupled element 31, a lens barrel 32, a light source assembly 33, a second guide rail 51, a grating ruler 52, a linear motor rotor 53, a linear motor stator 54, a rotor fixing assembly 55, a dust cover 56, a first driving motor 61, a first guide rail 62, a first sliding block 63 and a lifting plate 64
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the device or element referred to must have the specific orientation, operate in the specific orientation configuration, and thus, should not be construed as limiting the present invention.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 1 to 4, a PCB inspection apparatus includes a base 1, a computer control system, a copper thickness measuring head 2 and a camera 3 respectively connected to the computer control system, and an X-axis driving mechanism 4, a Y-axis driving mechanism 5 and a Z-axis driving mechanism 6 respectively connected to the computer control system are disposed on the base 1. The main structure of the detection equipment adopts a gantry type XY structure, a Z-axis driving mechanism 6 is slidably mounted on an X-axis driving mechanism 4, and the X-axis driving mechanism 4 is slidably mounted on a Y-axis driving mechanism 5. The camera device 3 is slidably mounted on the Z-axis driving mechanism 6, and in addition, a fine adjustment driving member is slidably disposed on the Z-axis driving mechanism 6, in this embodiment, the fine adjustment driving member is a cylinder 7, and the copper thickness measuring head 2 is movably connected to the cylinder 7, so that after the copper thickness measuring head 2 slides on the Z-axis driving mechanism 6, the cylinder 7 is connected to the computer control system, and the cylinder 7 can further drive the copper thickness measuring head 2 to move in the Z-axis direction. Optionally, the fine tuning driving part can also be a fine tuning motor and a fine tuning screw rod connected to one end of the fine tuning motor, the copper thickness measuring head 2 is connected with the fine tuning screw rod, and the fine tuning motor drives the fine tuning screw rod to move, so that the position of the copper thickness measuring head 2 is finely tuned.
It is specific, when operating personnel need measure the linewidth and the copper of PCB board simultaneously, computer control system control X axle actuating mechanism 4, Y axle actuating mechanism 5 and Z axle actuating mechanism 6, camera device 3 moves the face position that can shoot the PCB board and guarantees certain definition, copper thick measuring head 2 and camera device 3 synchronous movement are to the PCB board position top of awaiting measuring, copper thick measuring head 2 needs direct contact PCB board face when actual measurement, consequently still need be with the help of cylinder 7, cylinder 7 continues to adjust the position of copper thick measuring head 2 and makes it contact PCB board face. And the computer control system calculates the line width of the PCB according to the image transmitted by the camera device 3 by preset algorithm software, corrects the line width and copper thickness data and a standard range value provided by a client, and judges that the PCB is a defective product if the line width and copper thickness data exceed the standard range value. The detection equipment realizes the function of simultaneously measuring the copper thickness and the line width of the PCB, and greatly improves the detection efficiency of the PCB. Wherein, the cylinder 7 which does reciprocating linear motion can be divided into a single-acting cylinder, a double-acting cylinder, a diaphragm type cylinder and an impact cylinder. Preferably, the cylinder 7 is a double-acting cylinder, and both sides of a piston of the cylinder are provided with air pressure, so that the forward or backward movement can be realized, and the copper thickness measuring head 2 can move up or down.
In an alternative embodiment, the Z-axis driving mechanism 6 includes a first driving motor 61, a first lead screw disposed at one end of the first driving motor 61, and first guide rails 62 disposed at two sides of the first lead screw, a first slider 63 is disposed on each first guide rail 62, a lifting plate 64 is disposed on each first slider 63, and the air cylinder 7 and the image pickup device 3 are disposed on the lifting plate 64 respectively. Optionally, the driving motor is a servo motor. The Y-axis driving mechanism 5 comprises a linear motor, second guide rails 51 arranged on two sides of the linear motor in parallel, and a sliding connection plate arranged on the linear motor, wherein a second sliding block is arranged on the second guide rails 51, the sliding connection plate is connected with the second sliding blocks on two sides, and a beam supporting seat on the X-axis driving mechanism 4 is fixed on the second sliding block. The second guide rail 51 is provided with a dust cover 56, and the linear motor comprises a linear motor rotor 53, a linear motor stator 54 and a rotor fixing assembly 55. The X-axis driving mechanism 4 is a ball screw pair and specifically comprises a second driving motor, a second screw arranged at one end of the second driving motor, two second guide rails 51 arranged on two sides of the second screw, second sliding blocks arranged on the second guide rails 51 respectively, and a Z-axis driving mechanism 6 arranged on the second sliding blocks.
In an optional embodiment, the Y-axis driving mechanism 5 includes a grating scale 52, and the grating scale 52 has the characteristics of a large detection range, high detection precision, and a fast response speed. The grating ruler 52 is composed of a scale grating and a grating reading head, the grating reading head is fixed on the beam support base, the scale grating is arranged in parallel with the second guide rail 51, and the grating reading head moves on the scale grating. The grating scale 52 detects the coordinates of the copper thickness measuring head 2 and the camera 3 in the Y-axis direction, and observes whether the moved position has an error with the movement position set by the computer control system.
In an optional embodiment, the end cover of the cylinder 7 is fixedly connected with a probe fixing seat, the probe fixing seat is connected with a probe locking block, and a through hole for fixing the copper thickness measuring head 2 is formed by assembling the probe fixing seat and the probe locking block. The image pickup device 3 comprises a charge-coupled device 31, a lens barrel 32 and a light source assembly 33 which are connected in sequence, a lens barrel fixing seat and a lens barrel locking block are arranged on the lifting plate 64, and the lens barrel fixing seat and the lens barrel locking block are assembled to form a through hole for fixing the image pickup device 3.
In actual detection work, a flat plate is arranged above the sliding connection plate, the PCB is placed on the flat plate, and due to the fact that the PCB is placed on the flat plate easily to shift or be uneven, the measuring result of the detection equipment is large in error. In an optional embodiment, the detection apparatus further includes an adsorption platform 9, the adsorption platform 9 is disposed on the flat plate, the adsorption platform 9 is disposed above the sliding connection plate, a plurality of adsorption holes are disposed on the adsorption platform 9, and the adsorption holes are connected to a vacuum suction device. After the PCB board was placed on adsorption platform 9, start and inhale vacuum apparatus, make gaseous form effective absorption to the PCB board from this from the adsorption hole suction, PCB can set up firmly on adsorption platform 9.
In an optional embodiment, the sizes of the PCBs of different batches are different, the difference in the accuracy of the PCB detection is large by using the adsorption platform 9 of the same specification to fix the PCBs, the adsorption platform 9 of the large size adsorbs the PCBs of the small size, and the uncovered adsorption holes also work, so that the adsorption forces of the peripheral and central areas of the PCBs are different, and the adsorption effect is affected. In an optional embodiment, the bottom plate of the adsorption platform 9 is provided with at least two air chambers 10, each air chamber 10 is respectively connected with an electromagnetic valve in series, and each electromagnetic valve can work independently. The adsorption area is adjusted according to the shape of the PCB, so that the PCB with various shapes and sizes can be adsorbed, and the adsorption is flexible and comprises regular shapes and irregular shapes. And the PCB board to be measured is subjected to uniform adsorption force, and the adsorption effect is good.
In an optional embodiment, a sensor fixing plate is disposed on the lifting plate 64, a collision avoidance sensor 11 is disposed on the sensor fixing plate, the collision avoidance sensor 11 is parallel to the position of the image pickup device 3, and the collision avoidance sensor 11 is configured to monitor whether the light source assembly 33 collides with the adsorption platform 9. The anti-collision sensor 11 calculates the distance value between the light source assembly 33 and the adsorption platform 9 in real time and feeds the distance value back to the computer control system, and when the distance value is smaller than a preset value, the computer control system sends a warning to remind an operator. In order to facilitate the operator to view and operate the detection device, the detection device further comprises a display 8, the display 8 is arranged on the base 1, the display 8 comprises an operation component and a touch panel, and the operator can change the driving path parameters by using the touch panel.
In this embodiment, the PCB detection apparatus includes a base 1, a computer control system, a copper thickness measuring head 2, a camera device 3, and an X axis driving mechanism 4 connected with the computer control system respectively, a Y axis driving mechanism 5, a Z axis driving mechanism 6, the Z axis driving mechanism 6 is slidably mounted on the X axis driving mechanism 4, the X axis driving mechanism 4 is slidably mounted on the Y axis driving mechanism 5, the computer control system controls the movement path of three driving mechanisms to drive the copper thickness measuring head 2 and the camera device 3 to move, meanwhile, the computer control system also controls a cylinder 7, the cylinder 7 makes the copper thickness measuring head 2 contact the board surface of the PCB to be detected by continuously adjusting the position of the copper thickness measuring head 2, the detection apparatus realizes the function of simultaneously measuring the copper thickness and the line width of the PCB, and greatly improves the detection efficiency of the PCB.
Example two
A PCB detection method is applied to PCB detection equipment in the first embodiment and comprises the following steps:
after receiving the detection instruction, the computer control system controls the movement paths of the X-axis driving mechanism 4 and the Y-axis driving mechanism 5, and the camera device 3 and the copper thickness measuring head 2 move to the position above the PCB to be detected;
the computer control system controls the Z-axis driving mechanism 6 to move to drive the camera device 3 and the copper thickness measuring head 2 to move up and down so that the distance between the camera device (3) and the measuring area of the PCB to be measured reaches a preset range, the camera device (3) can acquire a clear image of the measuring area of the PCB to be measured, and the fine adjustment driving piece continues to adjust the position of the copper thickness measuring head 2 so that the copper thickness measuring head 2 contacts the surface of the PCB to be measured;
then, controlling the camera device 3 to obtain an image of a measurement area of the PCB to be measured and transmitting the image to a computer control system, wherein the computer control system is internally provided with an algorithm and analyzes the image to determine the line width of the PCB to be measured;
the copper thickness measuring head 2 obtains copper thickness data of the PCB to be measured and transmits the data to the computer control system.
Optionally, the computer control system compares the measured line width and copper thickness with standard range values provided by the customer, and if the measured line width and copper thickness exceed the standard range values, the PCB is determined to be a defective product. The computer control system can send out a warning signal to remind an operator of paying attention to the fact that the PCB is a defective product.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The PCB detection equipment is characterized by comprising a base (1), a computer control system, a copper thickness measuring head (2) and a camera device (3) which are respectively connected with the computer control system, wherein an X-axis driving mechanism (4), a Y-axis driving mechanism (5) and a Z-axis driving mechanism (6) which are respectively connected with the computer control system are arranged on the base (1);
the Z-axis driving mechanism (6) is slidably mounted on the X-axis driving mechanism (4), and the X-axis driving mechanism (4) is slidably mounted on the Y-axis driving mechanism (5);
the camera device (3) is slidably mounted on the Z-axis driving mechanism (6), the camera device (3) is used for collecting an image of a PCB to be measured in a measuring area and transmitting the image to the computer control system, and a built-in algorithm of the computer control system is used for analyzing the image to determine the line width of the PCB to be measured;
slide on Z axle actuating mechanism (6) and be provided with the fine setting driving piece, copper thick measuring head (2) swing joint be in on the fine setting driving piece, the fine setting driving piece with computer control system connects, the fine setting driving piece is used for driving copper thick measuring head (2) remove to with the face contact of the PCB board that awaits measuring.
2. The PCB detecting equipment according to claim 1, wherein the fine-tuning driving member is an air cylinder (7), the Z-axis driving mechanism (6) comprises a first driving motor (61), a first lead screw arranged at one end of the first driving motor (61), and first guide rails (62) arranged at two sides of the first lead screw, a first sliding block (63) is arranged on each first guide rail (62), a lifting plate (64) is arranged on each first sliding block (63), and the air cylinder (7) and the camera device (3) are respectively arranged on the lifting plate (64).
3. The PCB detecting equipment according to claim 2, wherein a probe fixing seat is fixedly connected to an end cover of the cylinder (7), a probe locking block is connected to the probe fixing seat, and a through hole for fixing the copper thickness measuring head (2) is formed by assembling the probe fixing seat and the probe locking block.
4. The PCB board detection device according to claim 2, wherein the camera device (3) comprises a charge-coupled device (31), a lens barrel (32) and a light source assembly (33) which are connected in sequence, a lens barrel fixing seat and a lens barrel locking block are arranged on the lifting plate (64), and a through hole for fixing the camera device (3) is formed by assembling the lens barrel fixing seat and the lens barrel locking block.
5. The PCB detecting device of claim 4, wherein the Y-axis driving mechanism (5) comprises a linear motor, second guide rails (51) arranged on two sides of the linear motor in parallel, and a sliding connection plate arranged on the linear motor, the sliding connection plate is connected with second sliding blocks on the second guide rails (51) on two sides, and a beam support seat on the X-axis driving mechanism (4) is fixed on the second sliding blocks.
6. The PCB detecting equipment according to claim 5, further comprising an adsorption platform (9), wherein the adsorption platform (9) is arranged above the sliding connection plate, a plurality of adsorption holes are arranged on the adsorption platform (9), an air chamber (10) is arranged on a bottom plate of the adsorption platform (9), and a vacuum absorbing device is connected to the air chamber (10).
7. The PCB detecting equipment according to claim 6, wherein the bottom plate of the adsorption platform (9) is provided with at least two air chambers (10), each air chamber (10) corresponds to a different adsorption hole and is respectively connected with an electromagnetic valve in series, and each electromagnetic valve can work independently.
8. The PCB detecting equipment according to claim 6, wherein a sensor fixing plate is arranged on the lifting plate (64), an anti-collision sensor (11) is arranged on the sensor fixing plate, the anti-collision sensor (11) is parallel to the position of the camera device (3), and the anti-collision sensor (11) is used for monitoring the distance between the light source assembly (33) and the adsorption platform (9).
9. The PCB board detection apparatus of claim 1, further comprising a display (8), wherein the display (8) is disposed on the base (1).
10. The PCB board detection device according to claim 5, wherein the Y-axis driving mechanism (5) comprises a grating ruler (52), the grating ruler (52) is composed of a scale grating and a grating reading head, the grating reading head is fixed on the beam support base, and the scale grating is arranged in parallel with the second guide rail (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189758.8U CN213147718U (en) | 2020-09-29 | 2020-09-29 | PCB board check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189758.8U CN213147718U (en) | 2020-09-29 | 2020-09-29 | PCB board check out test set |
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| Publication Number | Publication Date |
|---|---|
| CN213147718U true CN213147718U (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022189758.8U Active CN213147718U (en) | 2020-09-29 | 2020-09-29 | PCB board check out test set |
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| CN (1) | CN213147718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295123A (en) * | 2021-05-18 | 2021-08-24 | 英拓自动化机械（深圳）有限公司 | Thickness measuring equipment for PCB (printed circuit board) |
-
2020
- 2020-09-29 CN CN202022189758.8U patent/CN213147718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295123A (en) * | 2021-05-18 | 2021-08-24 | 英拓自动化机械（深圳）有限公司 | Thickness measuring equipment for PCB (printed circuit board) |
| CN113295123B (en) * | 2021-05-18 | 2022-11-18 | 英拓自动化机械（深圳）有限公司 | Thickness measuring equipment for PCB (printed circuit board) |
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