CN112809824B - Drilling machine and drilling method and drilling device thereof - Google Patents
Drilling machine and drilling method and drilling device thereof Download PDFInfo
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- CN112809824B CN112809824B CN202110415721.9A CN202110415721A CN112809824B CN 112809824 B CN112809824 B CN 112809824B CN 202110415721 A CN202110415721 A CN 202110415721A CN 112809824 B CN112809824 B CN 112809824B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/007—Control means comprising cameras, vision or image processing systems
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0047—Drilling of holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
- B26F2210/08—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of ceramic green sheets, printed circuit boards and the like
Abstract
The invention discloses a drilling method and a drilling device of a drilling machine and the drilling machine. The method comprises the following steps: in the drilling process of the circuit board, recording position information of holes to be machined during cutter breaking, and performing drill supplement on the holes to be machined immediately after cutter changing each time, or performing centralized drill supplement on all the holes to be machined based on the position information of the holes to be machined after drilling is finished, acquiring image information of the holes to be machined according to the position information of the holes to be machined after the holes to be machined are subjected to drill supplement, and determining whether the holes to be machined are successfully subjected to drill supplement according to the image information of the holes to be machined. From this, carry out the benefit through the positional information who treats the machined hole and bore to and whether confirm through the image information who treats the machined hole and mend and bore successfully, realize automatic benefit and bore the detection, compare and adopt the manual work to mend to bore the detection in traditional technique, this scheme can improve detection efficiency and product yield, improves economic benefits.
Description
Technical Field
The invention relates to the technical field of drilling, in particular to a drilling machine and a drilling method and a drilling device thereof.
Background
A Printed Circuit Board (PCB) is an indispensable core support for electronic products, and is used to fix and connect electronic components to form an electrical Circuit and perform a specific function. Drilling holes are important elements on PCB boards. With the promotion of the information industry, the speed of digital signal transmission is faster and higher, the frequency is higher and higher, and when the frequency of circuit signals is increased to a certain degree, useless hole copper parts in via holes in a PCB board can generate signal radiation to cause interference to other surrounding signals, and the normal work of a circuit system is influenced in a serious case. The quality of the drilled holes in the PCB board can severely affect circuit performance.
The PCB in the 5G field comprises various drilling processes such as through holes, blind holes, buried holes, back drilling holes and the like, and the communication board has complex process and higher value, and the introduction of the back drilling process puts extremely high requirements on the quality and stability of drilling. At present, the drilling tool can be detected in the drilling process of the PCB, and after the tool is found to be broken, the to-be-machined hole during breakage can be subjected to compensation drilling after tool changing. At present, a method for detecting a drill repairing of a hole to be machined is usually manually detected, and missing detection is easy to occur in manual detection, so that the finished product yield is low, and the scrapping cost is high.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide a drilling method for a drilling machine, which can achieve automatic detection, reduce human errors, save labor, and improve processing yield.
A second object of the invention is to propose a drilling device of a drilling machine.
A third object of the invention is to propose a drilling machine.
In order to achieve the above object, a first embodiment of the present invention provides a drilling method of a drilling machine, including: in the drilling process of the circuit board, recording the position information of the hole to be processed when the cutter is broken; after tool changing, the holes to be machined are subjected to drill repairing immediately, or after drilling is finished, all the holes to be machined are subjected to centralized drill repairing based on the position information of the holes to be machined; after the hole to be processed is subjected to drill supplementing, acquiring image information of the hole to be processed based on the position information of the hole to be processed; and analyzing the image information to determine whether the hole to be processed is successfully subjected to drill repairing.
According to the drilling method of the drilling machine, in the drilling process of the circuit board, the position information of the hole to be machined when the cutter is broken is recorded, the hole to be machined is subjected to drill supplement immediately after cutter changing each time, or after drilling is finished, all the holes to be machined are subjected to concentrated drill supplement based on the position information of the hole to be machined, after the hole to be machined is subjected to drill supplement, the image information of the hole to be machined is obtained based on the position information of the hole to be machined, the image information is analyzed, and whether the hole to be machined is successfully drilled is determined. From this, realize automatic benefit and bore the detection, compare and adopt the manual work to mend in traditional technology and bore the detection, this scheme can improve detection efficiency and product yield, improves economic benefits.
According to one embodiment of the invention, the recording of the position information of the hole to be processed when the cutter is broken comprises the following steps: judging whether a cutter is broken or not; and if the cutter is broken, cutter breakage alarm is carried out and the position information of the hole to be machined is recorded, wherein the hole to be machined comprises the current hole to be machined and/or the previous hole to be machined.
According to one embodiment of the invention, the judging whether the knife breaking occurs comprises the following steps: acquiring a Z-axis coordinate of the tool nose when the tool nose contacts the conductive cover plate during the detection of the surface of the tool nose; and if the deviation between the Z-axis coordinate and the preset coordinate is greater than the preset value, judging that the cutter breakage occurs.
According to one embodiment of the invention, the drilling machine comprises a main shaft and an image acquisition device arranged corresponding to the main shaft, and the drilling machine acquires image information of a hole to be processed based on position information of the hole to be processed, and the drilling machine comprises: and controlling the main shaft to move so that the image acquisition device is positioned above the hole to be processed corresponding to the position information, and controlling the image acquisition device to acquire the image information of the hole to be processed.
According to one embodiment of the invention, the acquiring the image information of the hole to be processed based on the position information of the hole to be processed comprises the following steps: if the hole to be machined is subjected to drill supplement immediately after tool changing every time, after the drill supplement of every time is finished, acquiring image information of the hole to be machined based on the position information of the hole to be machined, and determining whether the current hole to be machined is subjected to drill supplement successfully based on the image information, or after the drill supplement of all the holes to be machined is finished, intensively acquiring the image information of all the holes to be machined based on the position information of all the holes to be machined, and determining whether the hole to be machined is subjected to drill supplement successfully based on the image information of all the holes to be machined; if the centralized repair drilling is carried out on all the holes to be machined based on the position information of the holes to be machined after the drilling is finished, after the centralized repair drilling is finished, image information of all the holes to be machined is obtained based on the position information of all the holes to be machined, and whether the repair drilling of all the holes to be machined is successful or not is determined based on the image information of all the holes to be machined.
According to an embodiment of the invention, after determining whether the hole to be machined is successfully re-drilled, the method further comprises the following steps: if the hole to be machined is subjected to drill repairing immediately after tool changing every time and the hole to be machined is not subjected to drill repairing successfully, reminding that the hole is not subjected to drill repairing successfully, receiving confirmation information of a user, and determining whether to perform drill repairing again according to the confirmation information; if after drilling is finished, centralized drill supplement is carried out on all holes to be machined based on the position information of the holes to be machined, and the holes to be machined are not successfully subjected to drill supplement, successful prompt of non-drill supplement is carried out, confirmation information of a user is received, the position information of all the holes to be machined, which need to be subjected to drill supplement again, is determined according to the confirmation information, and the drill supplement is carried out again according to the position information.
According to one embodiment of the invention, analyzing the image information to determine whether the hole to be processed is successfully drilled, comprises:
performing gray scale processing on the image information to obtain a gray scale image; carrying out edge detection on the gray level image to obtain edge information of the hole to be processed; and determining whether the hole to be machined is successfully subjected to drill repairing according to the edge information.
According to one embodiment of the invention, the step of determining whether the hole to be machined is successfully subjected to the drill repairing according to the edge information comprises the following steps: and if the hole to be processed is determined to be a circular hole according to the edge information, determining that the hole to be processed is successfully subjected to drilling repairing.
In order to achieve the above object, a second aspect of the present invention provides a drilling apparatus of a drilling machine, including: the position acquisition module is used for recording the position information of the hole to be processed when the cutter is broken in the drilling process; the drill repairing module is used for repairing the drill to be processed immediately after tool changing each time or performing centralized drill repairing on all the holes to be processed based on the position information of the holes to be processed after the drilling is finished; the image acquisition module is used for acquiring the image information of the hole to be processed based on the position information of the hole to be processed after the hole to be processed is subjected to drilling compensation; and the analysis module is used for analyzing the image information and determining whether the hole to be machined is successfully subjected to drill repairing.
According to the drilling device provided by the embodiment of the invention, the position information of the hole to be processed during cutter breaking is recorded through the position acquisition module in the drilling process of the circuit board, the hole to be processed is subjected to compensation drilling immediately after each cutter changing through the compensation drilling module, or after the drilling is finished, all the holes to be processed are subjected to centralized compensation drilling based on the position information of the hole to be processed, the image information of the hole to be processed is acquired based on the position information of the hole to be processed after the hole to be processed is subjected to compensation drilling through the image acquisition module, and the image information is analyzed through the analysis module to determine whether the hole to be processed is successfully subjected to compensation drilling. From this, realize automatic benefit and bore the detection, compare and adopt the manual work to mend in traditional technology and bore the detection, this scheme can improve detection efficiency and product yield, improves economic benefits.
In order to achieve the above object, a drilling machine according to an embodiment of a third aspect of the present invention includes a drilling device of the drilling machine, and when the drilling machine is operated, a drilling method of the drilling machine according to the first aspect is implemented.
According to the drilling machine provided by the embodiment of the invention, through the drilling device and the drilling method, whether the drill repairing is successful or not can be automatically analyzed according to the image information of the hole to be processed after the drill repairing is finished, so that the automatic drill repairing detection is realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a drill rig according to one embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a method of drilling a hole according to one embodiment of the present invention;
fig. 3 is a schematic structural view of a drilling machine according to yet another embodiment of the present invention;
FIG. 4 is a schematic flow diagram of a drilling method according to yet another embodiment of the present invention;
fig. 5 is a schematic structural view of a drilling apparatus of a drilling machine according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A drilling machine, a drilling method thereof, and a drilling apparatus according to embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 shows an exemplary architecture diagram of a drilling machine to which the drilling method of the present invention can be applied.
As shown in fig. 1, the drilling machine may include a spindle 110, an image pickup device 120, and a table 130. The worktable 130 is used for placing a PCB to be processed. The end of the main shaft 110 is provided with a drilling tool, and the main shaft 110 drives the drilling tool to drill a hole on the PCB. The image capturing device 120 is disposed corresponding to the main shaft 110, and the main shaft 110 can drive the image capturing device 120 to capture a positioning point on the PCB, so as to calculate the expansion and contraction and the rotational offset of the PCB. The drilling device further comprises a control module (not shown in fig. 1), the control module is connected to the image acquisition device 120, and the control module is used for performing compensation calculation according to the expansion and contraction and the rotational offset of the PCB to obtain correct coordinates so as to process the PCB. The drilling device further comprises a broken cutter detection module (not shown in fig. 1), wherein the broken cutter detection module is connected with the control module and used for detecting whether the drilling cutter is broken in the drilling process, and if the drilling cutter is broken, a signal is sent to the control module so that the control device can record the position information of the hole to be machined when the cutter is broken and send an alarm. In this application, after the mend brill is ended, control module still is used for controlling image acquisition device 120 to remove to the top of waiting to process the hole position after corresponding mend hole, snatchs the image information after mend the hole in order to judge whether mend the hole and succeed. The image capturing device 120 may be a CCD (Charge coupled device) camera disposed on the main shaft.
Fig. 2 is a flowchart of a drilling method of a drilling machine according to an embodiment of the present invention, which may be performed by the drilling machine shown in fig. 1. As shown in fig. 2, the drilling method of the drill may include the steps of:
In this embodiment, the position information of the hole to be processed may be coordinates of the hole to be processed. During specific implementation, the broken cutter detection module detects whether the drilling cutter breaks in the drilling process, when the breaking of the drilling cutter is detected, a signal is sent to the control module, and the control module acquires coordinates of a hole to be machined in the broken cutter process and stores the coordinates of the hole to be machined in the memory.
In one embodiment, the recording of the position information of the hole to be machined when the cutter is broken includes: and judging whether the cutter is broken or not, if so, giving a cutter breakage alarm and recording the position information of the hole to be machined, wherein the hole to be machined comprises the current hole to be machined and/or the previous hole to be machined.
In this embodiment, determining whether a knife break occurs includes: and acquiring a Z-axis coordinate when the tool nose contacts the conductive cover plate when the surface of the tool nose is detected, and judging that tool breakage occurs if the deviation between the Z-axis coordinate and a preset coordinate is greater than a preset value.
Specifically, as shown in fig. 3, the PCB 150 includes a plurality of conductive layers 151 and a plurality of dielectric layers 152, the plurality of conductive layers 151 and the plurality of dielectric layers 152 are stacked in an intersecting manner, and generally, the conductive layer 151 is also formed on the surface of the PCB 150. A pulse signal is generated when the tip of the drilling tool 111 contacts the conductive layer 151 of the PCB board 150. When the tip of the drilling tool 111 touches the surface of the PCB 150, a trigger signal is generated by a loop formed by the control module 140, the spindle 110, the drilling tool 111, and the grounded stage 130, and when the tip of the drilling tool 111 touches each conductive layer 151 of the multi-layer PCB 150, the trigger signal is generated by the loop. The control module 140 receives the trigger signal and then obtains a position parameter of the tool tip of the drilling tool 111, wherein the position parameter includes a Z-axis coordinate of the tool tip. The Z-axis coordinate can be obtained by a frequency division output signal of a shaft end orthogonal encoder of a servo motor of the drilling machine or a line division output signal of a reading head of an incremental grating ruler of the drilling machine. The control module 140 compares the acquired Z-axis coordinate with a preset coordinate, and if the deviation between the Z-axis coordinate and the preset coordinate is greater than a preset value, it may be determined that a knife break occurs. In this embodiment, when the drilling tool 111 contacts each conductive layer 151 of the PCB 150, the control module 140 determines whether the drilling tool 111 is broken. If the drilling tool 111 contacts the board surface of the PCB 150, the control module 140 determines that the drilling tool 111 is broken, which indicates that the drilling tool 111 is broken when processing the previous hole to be processed, and therefore, the drilling needs to be performed on the previous hole to be processed, and the control module 140 records the position information of the previous hole to be processed, so as to perform the drilling repairing and the drilling repairing detection according to the position information. If the drilling tool does not break when contacting the surface of the PCB 150, but the drilling tool 111 breaks when the down drilling contacts the lower conductive layer, it indicates that the drilling tool 111 breaks when processing the current hole to be processed, and therefore the current hole to be processed needs to be subjected to drill repairing, and at this time, the control module 140 records the position information of the current hole to be processed, so as to perform drill repairing and drill repairing detection according to the position information.
And 102, performing re-drilling on the holes to be machined immediately after tool changing each time, or performing centralized re-drilling on all the holes to be machined based on the position information of the holes to be machined after drilling is finished.
Specifically, when the hole to be processed of the alarming cutter is subjected to drill repairing processing, the drill repairing processing can be performed on the hole to be processed immediately after each cutter breaking alarming, or the centralized drill repairing processing can be performed according to the position information of the hole to be processed, which is stored in the control module, after all the holes to be processed of the PCB are completely processed.
And 103, after the hole to be processed is subjected to drill supplementing, acquiring image information of the hole to be processed based on the position information of the hole to be processed.
In this embodiment, after the control module acquires the position information of the hole to be processed, the control module controls the image acquisition device to move to the position above the hole to be processed according to the position information of the hole to be processed, so that the image acquisition device acquires the image information of the hole to be processed.
Further, the image information of the hole to be processed is obtained based on the position information of the hole to be processed, and the method further comprises the following steps: if the hole to be machined is subjected to drill supplement immediately after tool changing every time, after the drill supplement of every time is finished, image information of the hole to be machined is obtained based on the position information of the hole to be machined, whether the current hole to be machined is subjected to drill supplement is determined based on the image information, or after the drill supplement of all the holes to be machined is finished, the image information of all the holes to be machined is collected in a centralized mode based on the position information of all the holes to be machined, and whether the hole to be machined is subjected to drill supplement is determined based on the image information of all the holes to be machined. If the centralized repair drilling is carried out on all the holes to be machined based on the position information of the holes to be machined after the drilling is finished, after the centralized repair drilling is finished, image information of all the holes to be machined is obtained based on the position information of all the holes to be machined, and whether the repair drilling of all the holes to be machined is successful or not is determined based on the image information of all the holes to be machined.
Specifically, in the drilling process, if the drilling tool is detected to be damaged, the current position information of the hole to be machined is recorded, and the current hole to be machined is subjected to drilling compensation immediately after tool changing. The image acquisition can be carried out in two conditions after the drill repairing, in one condition, the image can be immediately acquired and analyzed after the drill repairing is finished each time, and in the other condition, the image of the hole to be processed of all the drill repairing can be intensively acquired and analyzed based on the position information of the hole to be processed of the drill repairing after the drill repairing is finished and the drilling operation is finished.
Or when the damage of the cutter is detected in the drilling process, recording the position information of the corresponding hole to be processed, immediately supplementing drilling after cutter changing, continuously drilling the next hole of the current hole to be processed, after the drilling operation of one circuit board is completed, intensively supplementing drilling to all the holes to be processed according to the recorded position information of the hole to be processed, and acquiring the images of the holes to be processed after centralized supplementing drilling is completed so as to determine whether the supplementing drilling is successful according to the images of the holes to be processed after the supplementing drilling. In the application, the types of the holes on the circuit board comprise through holes, back drilling holes, blind holes and the like, and during centralized compensation drilling, centralized compensation drilling can be performed on each type of holes according to the types of the holes, for example, after drilling operation of all the through holes on the circuit board is completed, the centralized compensation drilling is performed on the holes to be processed in the through holes, and image information of the through holes after the compensation drilling is acquired and detected; after the drilling operation of all back drilling holes on the circuit board is completed, the holes to be processed in the back drilling holes are intensively subjected to drilling compensation, and the image information of the back drilling holes after drilling compensation is collected and detected.
And 104, analyzing the image information, and determining whether the hole to be machined is successfully subjected to drill repairing.
In this embodiment, the analysis of the image information may be to perform image analysis to determine whether the drill repairing is successful after each warning of tool breakage and drill repairing. Or after the drilling process is finished, the position information of all the alarm holes stored by the control module is used for controlling the image acquisition device to perform centralized image information analysis so as to judge whether the drilling repairing is successful or not. The image information collected by the image collecting device is subjected to visual detection immediately or intensively one by one, so that human errors can be reduced, and the processing yield is improved.
In one embodiment, analyzing the image information to determine whether the hole to be processed is successfully drilled includes: performing gray scale processing on the image information to obtain a gray scale image; carrying out edge detection on the gray level image to obtain edge information of the hole to be processed; and determining whether the hole to be machined is successfully subjected to drill repairing according to the edge information.
Because the color image has a large information content and a low image processing speed, in the specific implementation, the image acquisition device performs graying on the image information of the hole to be processed according to the obtained image information to obtain a grayed image, and further performs edge detection on the grayed image and obtains the edge information of the hole to be processed, so as to improve the image processing efficiency and facilitate the identification of the features in the image. And if the edge information is determined to be the round hole, determining that the hole to be machined is machined and subjected to drill repairing.
Further, after determining whether the hole to be machined is successfully re-drilled, the method further comprises the following steps: if the hole to be machined is subjected to drill repairing immediately after tool changing every time and the hole to be machined is not subjected to drill repairing successfully, reminding that the hole is not subjected to drill repairing successfully, receiving confirmation information of a user, and determining whether to perform drill repairing again according to the confirmation information; if after drilling is finished, centralized drill supplement is carried out on all holes to be machined based on the position information of the holes to be machined, and the holes to be machined are not successfully subjected to drill supplement, successful prompt of non-drill supplement is carried out, confirmation information of a user is received, the position information of all the holes to be machined, which need to be subjected to drill supplement again, is determined according to the confirmation information, and the drill supplement is carried out again according to the position information.
According to the drilling method of the drilling machine, in the drilling process of the circuit board, the position information of the hole to be machined in the cutter breaking process is recorded, the hole to be machined is subjected to drill repairing, the drill repairing can be realized by performing drill repairing immediately after cutter changing at each time or performing centralized drill repairing after drilling is finished, the image information of the hole to be machined is obtained based on the position information of the hole to be machined after the drill repairing, the image information is analyzed, whether the hole to be machined is subjected to drill repairing is determined, whether the drill repairing is successful or not is automatically analyzed according to the image information of the hole to be machined after the drill repairing, automatic drill repairing detection is achieved, and compared with the traditional technology that manual drill repairing detection is adopted, the scheme can improve detection efficiency and product yield, and improves economic benefits.
In order to more clearly describe the drilling method of the drilling machine of the previous embodiment, fig. 4 shows a work flow chart of the drilling method suitable for the drilling machine of the embodiment of the invention, which comprises the following steps:
in step 401, drilling is started.
And step 402, judging whether a cutter breaking alarm occurs. In this embodiment, a Z-axis coordinate of the tool tip when the tool tip contacts the conductive cover plate when the surface of the tool tip is detected is obtained, whether a tool break occurs is determined according to a deviation between the Z-axis coordinate and a preset coordinate, and if the tool break occurs, step 403 is executed; otherwise, step 412 is performed.
And 403, recording the position information of the hole to be processed when the cutter is broken by the control module.
And 406, controlling the image acquisition device to acquire the image of the hole to be processed after the drill repairing by the control module according to the position information of the hole to be processed. In this embodiment, the drilling machine may collect the images of the holes to be processed after each drill repairing is finished, or may collect the images of all the holes to be processed after all the holes to be processed are drilled and the drilling operation is finished.
And step 408, the control module sends out an alarm prompt to remind a customer, and if the control module receives confirmation information of the customer, the drill repairing machine carries out drill repairing again until the drill repairing is successful.
And step 409, after drilling, the control module calls the position information of the holes to be processed during all the cutter breaking processes, and performs centralized drill repairing on all the holes to be processed based on the position information of the holes to be processed.
And step 410, the control module controls the main shaft to drive the image acquisition module to acquire the image information of the holes to be processed after the drill repairing one by one.
And 411, judging whether all the holes to be machined are subjected to drill supplement successfully, if so, executing 412, otherwise, executing 408, giving an alarm to the holes to be machined which are not subjected to drill supplement successfully to prompt a customer, and if receiving confirmation information of a user, controlling the drill supplement machine to perform drill supplement again one by one on the holes to be machined which are not subjected to drill supplement successfully until the drill supplement is successful.
At step 412, the machining process ends.
In the embodiment, in the drilling process of the circuit board, the position information of the hole to be processed when the cutter is broken is recorded, and the drill repairing is performed according to the position information of the hole to be processed, wherein the drill repairing can be performed immediately after each cutter changing, or after the drilling is finished, the drill repairing is performed in a centralized manner, the image information of the hole to be processed is obtained simultaneously after the drill repairing, and whether the drill repairing is successful or not is determined according to the image information of the hole to be processed. Therefore, the position information of the hole to be processed is used for drilling compensation, and whether the drilling compensation is successful or not is determined through the image information of the hole to be processed, so that the manual errors are reduced, the automation is greatly improved, the manpower is saved, and the cost is reduced. And through the feedback system formed by the control module and the image acquisition module, if the drill repairing is not successful after the drill repairing is finished, the control module can send out an alarm prompt to remind a user to confirm whether the drill repairing is carried out again, so that the risk of drill leakage can be prevented, and the processing yield is improved.
In order to implement the above embodiment, the present invention further provides a drilling machine device, and fig. 5 is a schematic structural diagram of the drilling machine device provided in the embodiment of the present invention.
As shown in fig. 5, the drilling apparatus 50 of the drill includes: a position acquisition module 501, a drilling compensation module 502, an image acquisition module 503, and an analysis module 504. The position obtaining module 501 is configured to record position information of a hole to be processed when a tool is broken in a drilling process. And the drill repairing module 502 is used for repairing the drill to be processed immediately after tool changing every time, or performing centralized drill repairing on all the holes to be processed based on the position information of the holes to be processed after drilling is finished. The image obtaining module 503 is configured to obtain image information of the hole to be processed based on the position information of the hole to be processed after the hole to be processed is subjected to drilling compensation. And the analysis module 504 is configured to analyze the image information to determine whether the hole to be processed is successfully drilled.
In one embodiment, the position obtaining module 501 is specifically configured to determine whether a tool break occurs, and if the tool break occurs, perform a tool break alarm and record position information of a hole to be processed, where the hole to be processed includes a current hole to be processed and/or a previous hole to be processed.
In one embodiment, the position obtaining module 501 is further configured to obtain a Z-axis coordinate of the tool tip when the tool tip contacts the conductive cover plate during the tool tip surface detection, and determine that the tool is broken if a deviation between the Z-axis coordinate and a preset coordinate is greater than a preset value.
In one embodiment, the drilling machine includes a spindle and an image capturing device disposed corresponding to the spindle, and the image obtaining module 503 is specifically configured to control the spindle to move, so that the image capturing device is located above the hole to be processed corresponding to the position information, and control the image capturing device to capture image information of the hole to be processed.
In one embodiment, if the hole to be machined is re-drilled immediately after tool changing each time, the analysis module 504 is specifically configured to obtain image information of the hole to be machined based on the position information of the hole to be machined after the re-drilling of each time is finished, and determine whether the re-drilling of the hole to be machined is successful based on the image information. If after drilling is finished, centralized drilling compensation is performed on all the holes to be processed based on the position information of the holes to be processed, the analysis module 504 is specifically configured to obtain image information of all the holes to be processed based on the position information of all the holes to be processed after the centralized drilling compensation is finished, and determine whether drilling compensation is successful on all the holes to be processed based on the image information of all the holes to be processed.
In one embodiment, the drilling device of the drilling machine further comprises a reminding module, the reminding module is connected with the analysis module 504, and the reminding module is used for judging whether the drill supplement is successful after determining whether the drill supplement of the hole to be machined is successful, if the drill supplement is performed on the hole to be machined immediately after each tool change and the drill supplement of the hole to be machined is not successful, reminding the success of the drill supplement, receiving confirmation information of a user, and determining whether the drill supplement is performed again according to the confirmation information; if after drilling is finished, centralized drill supplement is carried out on all holes to be machined based on the position information of the holes to be machined, and the holes to be machined are not successfully subjected to drill supplement, successful prompt of non-drill supplement is carried out, confirmation information of a user is received, the position information of all the holes to be machined, which need to be subjected to drill supplement again, is determined according to the confirmation information, and the drill supplement is carried out again according to the position information.
In one embodiment, the analysis module 504 is specifically configured to perform gray-scale processing on the image information to obtain a gray-scale image; carrying out edge detection on the gray level image to obtain edge information of the hole to be processed; and determining whether the hole to be machined is successfully subjected to drill repairing according to the edge information.
In one embodiment, the analysis module 504 is further configured to determine that the hole to be processed is successfully drilled if it is determined from the edge information that the hole to be processed is a circular hole.
It should be noted that, for the description of the drilling device of the drilling machine in the present application, please refer to the description of the drilling method of the drilling machine in the present application, and detailed description thereof is omitted here.
In the drilling device of the drilling machine in the embodiment, the position information of the hole to be processed during cutter breaking is recorded in the circuit board drilling process through the position acquisition module, the drill is compensated according to the position information of the hole to be processed through the drill compensation module, the drill compensation can be realized through the drill compensation after each cutter changing, or the drill compensation is concentrated after the drilling is finished, the image information of the hole to be processed is acquired through the image acquisition module after the drill compensation according to the position information of the hole to be processed, the image information of the hole to be processed is analyzed through the analysis module, and whether the drill compensation of the hole to be processed is successful is determined. From this, carry out the benefit according to the positional information who treats the processing hole and bore, whether confirm through the image information who treats the processing hole and mend and bore successfully, realized automatic benefit and bored and detect, compare and adopt the manual work to mend in traditional art and bore the detection, this scheme can improve detection efficiency and product yield, improves economic benefits.
In order to realize the embodiment, the invention further provides a drilling machine. The drilling device comprises the drilling device, and when the drilling machine works, the drilling method of the drilling machine of the embodiment is realized.
According to the drilling machine, through the drilling device and the drilling method, whether the drill repairing is successful or not can be automatically analyzed according to the image information of the hole to be machined, which is completed by the drill repairing, after the drill repairing, automatic detection is achieved, and compared with the traditional technology in which manual drill repairing detection is adopted, the scheme can improve the detection efficiency and the product yield, and the economic benefit is improved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A drilling method of a drilling machine, comprising:
in the drilling process of the circuit board, acquiring a Z-axis coordinate when a tool nose contacts the conductive cover plate when the surface of the tool nose is detected;
if the deviation between the Z-axis coordinate and the preset coordinate is larger than a preset value, judging that the cutter is broken, and recording the position information of the hole to be machined when the cutter is broken, wherein the hole to be machined comprises the current hole to be machined and/or the previous hole to be machined;
after tool changing, performing drill repairing on the holes to be machined immediately, or after drilling is finished, performing centralized drill repairing on all the holes to be machined based on the position information of the holes to be machined;
after the hole to be processed is subjected to drilling compensation, acquiring image information of the hole to be processed based on the position information of the hole to be processed;
and analyzing the image information to determine whether the hole to be machined is successfully subjected to drill repairing.
2. The drilling method of a drilling machine according to claim 1, wherein the drilling machine comprises a spindle and an image capturing device provided corresponding to the spindle, and the acquiring of the image information of the hole to be processed based on the position information of the hole to be processed comprises:
and controlling the main shaft to move so that the image acquisition device is positioned above the hole to be processed corresponding to the position information, and controlling the image acquisition device to acquire the image information of the hole to be processed.
3. The drilling method of a drilling machine according to claim 1 or 2, wherein acquiring the image information of the hole to be processed based on the position information of the hole to be processed comprises:
if the hole to be machined is subjected to drill repairing after tool changing every time, after the drill repairing is finished every time, acquiring image information of the hole to be machined based on the position information of the hole to be machined, and determining whether the current hole to be machined is subjected to drill repairing successfully based on the image information, or after the drill repairing of all the holes to be machined is finished, intensively acquiring the image information of all the holes to be machined based on the position information of all the holes to be machined, and determining whether the hole to be machined is subjected to drill repairing successfully based on the image information of all the holes to be machined;
if after drilling is finished, performing centralized compensation drilling on all the holes to be machined based on the position information of the holes to be machined, after the centralized compensation drilling is finished, acquiring the image information of all the holes to be machined based on the position information of all the holes to be machined, and determining whether the compensation drilling of all the holes to be machined is successful based on the image information of all the holes to be machined.
4. The drilling method of a drilling machine according to claim 3, after determining whether the hole to be processed is successfully re-drilled, further comprising:
if the hole to be machined is subjected to drill repairing immediately after tool changing every time and the hole to be machined is not subjected to drill repairing successfully, reminding that the hole is not subjected to drill repairing successfully, receiving confirmation information of a user, and determining whether to perform drill repairing again according to the confirmation information;
if after drilling is finished, centralized drilling compensation is carried out on all the holes to be machined based on the position information of the holes to be machined, and the holes to be machined are not successfully drilled, reminding of successful drilling compensation is carried out, confirmation information of a user is received, the position information of all the holes to be machined needing drilling compensation again is determined according to the confirmation information, and drilling compensation is carried out again according to the position information.
5. The drilling method of the drilling machine according to claim 1, wherein the analyzing the image information to determine whether the hole to be processed is successfully drilled comprises:
performing gray scale processing on the image information to obtain a gray scale image;
performing edge detection on the gray level image to obtain edge information of the hole to be processed;
and determining whether the hole to be machined is successfully subjected to drill repairing according to the edge information.
6. The drilling method of a drilling machine according to claim 5, wherein the determining whether the hole to be processed is successfully re-drilled according to the edge information comprises:
and if the hole to be machined is determined to be a circular hole according to the edge information, determining that the hole to be machined is successfully subjected to drill repairing.
7. A drilling apparatus of a drilling machine, comprising:
the position acquisition module is used for recording the position information of the hole to be processed when the cutter is broken in the drilling process;
the drilling repairing module is used for repairing drilling of the holes to be machined immediately after tool changing each time, or after drilling is finished, centralized repairing drilling of all the holes to be machined is carried out based on the position information of the holes to be machined;
the image acquisition module is used for acquiring the image information of the hole to be processed based on the position information of the hole to be processed after the hole to be processed is subjected to drilling compensation;
and the analysis module is used for analyzing the image information and determining whether the hole to be machined is successfully subjected to drill repairing.
8. A drilling machine, characterized by comprising a drilling device of a drilling machine according to claim 7.
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| CN113618818A (en) * | 2021-07-06 | 2021-11-09 | 安吉八塔机器人有限公司 | Automatic identification drilling method applied to sponge |
| CN115179359A (en) * | 2022-09-13 | 2022-10-14 | 南通天合包装有限公司 | Full-automatic perforating device of cardboard |
| CN117279224B (en) * | 2023-11-17 | 2024-01-26 | 深圳市大族数控科技股份有限公司 | Circuit board back drilling method and circuit board back drilling device |
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