CN113124799B - Precision detection method, apparatus and computer readable storage medium - Google Patents
Precision detection method, apparatus and computer readable storage medium Download PDFInfo
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- CN113124799B CN113124799B CN202110341158.5A CN202110341158A CN113124799B CN 113124799 B CN113124799 B CN 113124799B CN 202110341158 A CN202110341158 A CN 202110341158A CN 113124799 B CN113124799 B CN 113124799B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Abstract
The application discloses a precision detection method, a device and a computer readable storage medium. The precision detection method is applied to a numerical control drilling machine, the numerical control drilling machine is provided with a plurality of spindles, the spindles are used for drilling a circuit board, and the method comprises the following steps: acquiring preset coordinate information and a preset drilling band, wherein the preset coordinate information comprises reference point coordinate positions corresponding to a plurality of main shafts one by one, and the preset drilling band comprises drilling programs corresponding to the plurality of main shafts; for each spindle, obtaining preset drilling coordinates according to the reference point coordinate positions and the drilling program; drilling the circuit board according to the corresponding main shaft according to the preset drilling coordinate to obtain an actually measured drilling coordinate corresponding to the drilling position; and obtaining the drilling position precision of the spindle according to the preset drilling coordinates and the actually measured drilling coordinates. By the precision detection method, the precision detection cost of the numerical control drilling machine can be reduced.
Description
Technical Field
The present application relates to the field of borehole detection technology, and in particular, to a method and apparatus for detecting accuracy, and a computer readable storage medium.
Background
The hole diameter on the circuit board is smaller and denser, so that the requirement on the hole drilling precision is higher and higher, and in order to meet the hole position precision of the circuit board, the precision of the drilling machine is required to be detected regularly, so that bad products are avoided. The current common detection method is to drill a test board by using each spindle of the drilling machine, and then test the drilling of the test board to detect the precision of the corresponding spindle, so as to determine whether the precision of the spindle reaches the standard. However, since each spindle requires 1 test board, and each drilling machine generally has a plurality of spindles, the number of test boards is increased with the increasing number of drilling machines, resulting in higher test cost.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides a precision detection method, a device and a computer readable storage medium, which can effectively reduce the test cost when the precision of the numerical control drilling machine is detected.
In a first aspect, an embodiment of the present application provides a precision detection method, which is applied to a numerical control drilling machine, where the numerical control drilling machine is provided with a plurality of spindles, and the spindles are used for drilling a circuit board, and the method includes: acquiring preset coordinate information and a preset drilling band, wherein the preset coordinate information comprises reference point coordinate positions corresponding to a plurality of main shafts one by one, and the preset drilling band comprises drilling programs corresponding to the plurality of main shafts; for each spindle, obtaining preset drilling coordinates according to the reference point coordinate positions and the drilling program; drilling the circuit board according to the corresponding main shaft according to the preset drilling coordinate to obtain an actually measured drilling coordinate corresponding to the drilling position; and obtaining the drilling position precision of the spindle according to the preset drilling coordinates and the actually measured drilling coordinates.
According to some embodiments of the first aspect of the present application, before the obtaining, for each of the spindles, a preset drilling coordinate according to the reference point coordinate position and the drilling program, the method includes: and establishing a one-to-one correspondence relation table according to the coordinate positions of the main shaft and the reference point.
According to some embodiments of the first aspect of the present application, the obtaining, for each of the spindles, a preset drilling coordinate according to the reference point coordinate position and the drilling program includes: and for each drilling program, taking the coordinate position of the reference point as the zero position of the drilling program, and obtaining corresponding preset drilling coordinates according to the zero position.
According to some embodiments of the first aspect of the present application, the controlling the corresponding spindle to drill the circuit board according to the preset drilling coordinate to obtain the measured drilling coordinate corresponding to the drilling position includes: according to the preset drilling coordinates, controlling the main shaft to execute the drilling program corresponding to the preset drilling coordinates so as to drill the circuit board; and obtaining actually measured drilling coordinates corresponding to the drilling positions on the circuit board according to the drilling program.
According to some embodiments of the first aspect of the present application, before the obtaining the drilling position accuracy of the spindle according to the preset drilling coordinates and the measured drilling coordinates, the method includes: and acquiring the preset coordinate information, and taking the coordinate position of the reference point as the zero position of the coordinate system of the circuit board.
According to some embodiments of the first aspect of the present application, the obtaining the drilling position accuracy of the spindle according to the preset drilling coordinates and the measured drilling coordinates includes: acquiring the preset drilling coordinates and the actually measured drilling coordinates; obtaining a corresponding deviation value according to the preset drilling coordinate and the actually measured drilling coordinate; and obtaining the drilling position precision of the spindle according to the deviation value.
According to some embodiments of the first aspect of the present application, the obtaining a corresponding deviation value according to the preset borehole coordinate and the measured borehole coordinate includes: calculating the distance between the preset drilling coordinate and the zero position to obtain a first absolute value, and calculating the distance between the actually measured drilling coordinate and the zero position of the coordinate system to obtain a second absolute value; and obtaining the deviation value according to the difference value of the first absolute value and the plurality of second absolute values.
According to some embodiments of the first aspect of the present application, the obtaining the drilling position accuracy of the spindle according to the deviation value includes: and when the deviation value is smaller than a preset deviation value, judging that the drilling position precision of the spindle reaches the standard.
In a second aspect, an embodiment of the present application provides an accuracy detecting apparatus, including: a memory and a processor, the memory storing a computer program; the computer program, when executed by the processor, implements the accuracy detection method according to any one of the embodiments of the first aspect.
In a third aspect, embodiments of the present application further provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the accuracy detection method according to the first aspect above.
One or more technical solutions provided in the embodiments of the present application have at least the following beneficial effects: the method comprises the steps of obtaining preset coordinate information and a preset drilling zone, obtaining preset drilling coordinates of each spindle according to reference point coordinates of the preset coordinate information and a drilling program of the preset drilling zone, controlling each spindle to drill a circuit board according to the preset drilling coordinates and obtaining measured drilling coordinates, and obtaining drilling position accuracy of the corresponding spindle according to the preset drilling coordinates and the measured drilling coordinates. According to the scheme provided by the embodiment of the application, a plurality of main shafts can drill holes on the same circuit board, and the drilling position precision of the corresponding main shaft is obtained according to the preset drilling coordinates and the actually measured drilling coordinates, so that the number of the circuit boards for testing is reduced, and the testing cost of precision detection of the numerical control drilling machine is reduced.
Additional aspects and advantages of the application 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 application.
Drawings
Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart illustrating steps of a method for detecting accuracy according to an embodiment of the first aspect of the present application;
FIG. 2 is a zero position coordinate table of an embodiment of the first aspect of the present application;
fig. 3 is a schematic diagram of actual drilling positions of a circuit board according to an embodiment of the first aspect of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The hole diameter on the circuit board is smaller and denser, so that the requirement on the hole drilling precision is higher and higher, and in order to meet the hole position precision of the circuit board, the precision of the drilling machine is required to be detected regularly, so that bad products are avoided. The current common detection method is to drill a test board by using each spindle of the drilling machine, and then test the drilling of the test board to detect the precision of the corresponding spindle, so as to determine whether the precision of the spindle reaches the standard. However, since each spindle requires a test board, and each drilling machine generally has a plurality of spindles, the number of drilling machines is increased, so that the number of test boards required is increased, resulting in higher test cost.
Therefore, the application provides a precision detection method, a device and a computer readable storage medium, which can effectively reduce the test cost when the precision of the numerical control drilling machine is detected.
Embodiments of the present application will be further described below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present application provides a method for detecting accuracy, where the method is applied to a numerical control drilling machine, and the numerical control drilling machine is provided with a plurality of spindles, and the spindles are used for drilling a circuit board.
Referring to fig. 1, in some embodiments, the accuracy detection method includes, but is not limited to, step S100, step S200, step S300, and step S400.
Step S100: and acquiring preset coordinate information and a preset drilling band, wherein the preset coordinate information comprises reference point coordinate positions corresponding to the plurality of main shafts one by one, and the preset drilling band comprises drilling programs corresponding to the plurality of main shafts.
It should be noted that, for each spindle, when executing the corresponding drilling procedure, the coordinate position of the reference point in the preset coordinate information may be taken as the zero position of the drilling procedure.
Step S200: for each spindle, a preset drilling coordinate is obtained according to the reference point coordinate position and the drilling program.
It should be noted that, according to the reference point coordinate position and the drilling program, the preset drilling coordinate of the corresponding spindle can be calculated.
Step S300: and controlling the corresponding spindle to drill the circuit board according to the preset drilling coordinate to obtain the actually measured drilling coordinate corresponding to the drilling position.
It should be noted that, the plurality of spindles drill holes on the same circuit board according to the preset drilling coordinates so as to obtain a plurality of corresponding actually measured drilling coordinates.
Step S400: and obtaining the drilling position accuracy of the spindle according to the preset drilling coordinates and the actually measured drilling coordinates.
It should be noted that, whether the preset drilling coordinate is consistent with the actually measured drilling coordinate can be used for judging the drilling position accuracy of the corresponding spindle.
It can be understood that, through step S100, step S200, step S300 and step S400, the preset coordinate information and the preset drilling band are obtained first, the preset drilling coordinate of each spindle is obtained according to the reference point coordinate of the preset coordinate information and the drilling program of the preset drilling band, then each spindle is controlled to drill the circuit board according to the preset drilling coordinate and obtain the actually measured drilling coordinate, and then the drilling position accuracy of the corresponding spindle can be obtained according to the preset drilling coordinate and the actually measured drilling coordinate. According to the scheme provided by the embodiment of the application, a plurality of main shafts can drill holes on the same circuit board, and the drilling position precision of the corresponding main shaft is obtained according to the preset drilling coordinates and the actually measured drilling coordinates, so that the number of the circuit boards for testing is reduced, and the testing cost of precision detection of the numerical control drilling machine is reduced.
As shown in fig. 2 and 3, fig. 2 is a zero coordinate table of an embodiment of the first aspect of the present application, and fig. 3 is a schematic diagram of actual drilling positions of a circuit board of an embodiment of the first aspect of the present application. In this embodiment, each numerically controlled drilling machine has 6 spindles, and the drilling program executed by each spindle corresponds to a reference point coordinate as a zero coordinate. By using the precision detection method, the precision test can be completed by only 6 circuit boards for every 48 numerical control drilling machines, and compared with the test performed by 1 circuit board for every spindle before improvement, 42 circuit boards are reduced, so that the number of circuit boards for the test is effectively reduced, and the precision detection cost of the numerical control drilling machines is saved.
Illustratively, the accuracy detecting method may specifically include, but is not limited to, the following steps:
step S210: and establishing a one-to-one correspondence relation table according to the coordinate positions of the main shaft and the reference point.
Specifically, as shown in fig. 2, the relationship table performs data binding record on the zero coordinates and the corresponding spindle machine number.
In some embodiments, regarding the above step S200, the accuracy detecting method may specifically include, but is not limited to, the following steps:
step S220: and taking the coordinate position of the reference point as the zero position of the drilling program for each drilling program, and obtaining corresponding preset drilling coordinates according to the zero position.
As to the above step S300, the accuracy detecting method may include, but is not limited to, the following steps:
step S310: and controlling the main shaft to execute a drilling program corresponding to the preset drilling coordinates according to the preset drilling coordinates so as to drill the circuit board.
Step S320: and obtaining actually measured drilling coordinates corresponding to the drilling positions on the circuit board according to the drilling program.
Specifically, the actual drilling position of the circuit board is shown in fig. 3, and the actual drilling coordinates can be measured according to the drilling position of the circuit board. The measured borehole coordinates may be obtained using an image detection device, a measuring tape, or the like, and the present embodiment is not limited thereto.
In some embodiments, before the step S400, the accuracy detecting method may specifically include, but is not limited to, the following steps:
step S410: and acquiring preset coordinate information, and taking the coordinate position of the reference point as the zero position of the coordinate system of the circuit board.
It can be understood that, for a spindle, the reference point coordinate position is used as the zero position of the drilling program, and the reference point coordinate position is used as the zero position of the coordinate system of the circuit board, the zero position and the zero position of the coordinate system can be matched at the same position, so that the preset drilling coordinate and the actually measured drilling coordinate are positioned at the same coordinate system, and the drilling position precision of the spindle is judged according to whether the coordinate positions of the preset drilling coordinate and the actually measured drilling coordinate are consistent.
As to the above step S400, the accuracy detecting method may include, but is not limited to, the following steps:
step S420: and acquiring preset drilling coordinates and actually measured drilling coordinates.
Step S430: and obtaining a corresponding deviation value according to the preset drilling coordinate and the actually measured drilling coordinate.
Step S440: and drilling position accuracy of the spindle is achieved according to the deviation value.
Specifically, in some embodiments, regarding the above step S430, the accuracy detecting method may specifically include, but is not limited to, the following steps:
step S431: and calculating the distance between the preset drilling coordinate and the zero position to obtain a first absolute value, and calculating the distance between the actually measured drilling coordinate and the zero position of the coordinate system to obtain a second absolute value.
Step S432: and obtaining a deviation value according to the difference value of the first absolute value and the plurality of second absolute values.
In this embodiment, the first absolute value is obtained by calculating the shortest distance value between the preset borehole coordinate and the zero position, the second absolute value is obtained by calculating the shortest distance value between the actually measured borehole coordinate and the zero position of the coordinate system, and the position deviation between the preset borehole coordinate and the actually measured borehole coordinate is obtained by calculating the difference between the first absolute value and the second absolute value.
As to the above step S440, the accuracy detecting method may include, but is not limited to, the following steps:
step S441: and when the deviation value is smaller than the preset deviation value, judging that the drilling position precision of the spindle reaches the standard.
It is noted that, because each spindle of the numerical control drilling machine is affected by factors such as dynamic swing, the preset drilling coordinates and the actually measured drilling coordinates are difficult to be completely consistent, so that the preset error value is required, and when the deviation value is smaller than the preset error value, the accuracy of the drilling position of the spindle can be judged to reach the standard.
Based on the above-described accuracy detection method of the first aspect, the accuracy detection device of each embodiment of the second aspect of the present application is proposed, the accuracy detection device including: a memory, a processor, and a computer program stored on the memory and executable on the processor; the computer program, when executed by a processor, implements the accuracy detection method as described in any one of the embodiments of the first aspect above.
It will be appreciated that the processor and memory may be connected by a bus or other means.
It should be noted that the non-transitory software program and instructions required to implement the accuracy detection method of the above embodiment are stored in the memory, and when executed by the processor, the accuracy detection method in the above embodiment is performed, for example, the method steps S100 to S400, the method step S210, the method step S220, the method steps S310 to S320, the method step S410, the method steps S420 to S440, the method steps S431 to S432, and the method step S441 described above are performed.
It will be appreciated that, since the accuracy detecting device according to the second aspect of the present application performs the accuracy detecting method including any one of the embodiments of the first aspect, specific embodiments and technical effects of the accuracy detecting device according to the second aspect of the present application may refer to specific embodiments and technical effects of the accuracy detecting method according to any one of the embodiments of the first aspect.
The embodiments of the accuracy detecting device described above are merely illustrative, in which the units described as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Based on the accuracy detection method of the above-described first aspect embodiment, a computer-readable storage medium storing computer-executable instructions of the respective embodiments of the third aspect of the present application is proposed, and the computer-executable instructions are executed by a processor or a controller, for example, by one of the above-described accuracy detection device embodiments, which may cause the above-described processor to execute the accuracy detection method of the above-described embodiments, for example, to execute the above-described method steps S100 to S400, method step S210, method step S220, method steps S310 to S320, method step S410, method steps S420 to S440, method steps S431 to S432, and method step S441.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present application.
Claims (4)
1. A precision detection method, characterized in that it is applied to a numerical control drilling machine provided with a plurality of spindles for drilling circuit boards, the method comprising:
acquiring preset coordinate information and a preset drilling band, wherein the preset coordinate information comprises reference point coordinate positions corresponding to a plurality of main shafts one by one, and the preset drilling band comprises drilling programs corresponding to the plurality of main shafts;
for each spindle, obtaining preset drilling coordinates according to the reference point coordinate positions and the drilling program;
drilling the circuit board according to the corresponding main shaft according to the preset drilling coordinate to obtain an actually measured drilling coordinate corresponding to the drilling position;
obtaining the drilling position accuracy of the spindle according to the preset drilling coordinates and the actually measured drilling coordinates;
establishing a one-to-one corresponding relation table according to the coordinate positions of the main shaft and the reference points, wherein the relation table represents a record of data binding between a zero position and the corresponding main shaft;
the obtaining, for each spindle, a preset drilling coordinate according to the reference point coordinate position and the drilling program, including:
for each drilling program, taking the coordinate position of the reference point as the zero position of the drilling program, and obtaining corresponding preset drilling coordinates according to the zero position;
the step of drilling the circuit board according to the spindle corresponding to the preset drilling coordinate control to obtain the actually measured drilling coordinate corresponding to the drilling position comprises the following steps:
according to the preset drilling coordinates, controlling the main shaft to execute the drilling program corresponding to the preset drilling coordinates so as to drill the circuit board;
obtaining actually measured drilling coordinates corresponding to drilling positions on the circuit board according to the drilling program;
the obtaining the drilling position accuracy of the spindle according to the preset drilling coordinates and the actually measured drilling coordinates comprises the following steps:
acquiring the preset drilling coordinates and the actually measured drilling coordinates;
obtaining a corresponding deviation value according to the preset drilling coordinate and the actually measured drilling coordinate;
obtaining the drilling position precision of the spindle according to the deviation value;
the obtaining a corresponding deviation value according to the preset drilling coordinate and the actually measured drilling coordinate comprises the following steps:
calculating the distance between the preset drilling coordinate and the zero position to obtain a first absolute value, and calculating the distance between the actually measured drilling coordinate and the zero position of a coordinate system to obtain a second absolute value;
obtaining the deviation value according to the difference value between the first absolute value and the plurality of second absolute values;
the obtaining the drilling position precision of the spindle according to the deviation value comprises the following steps:
and when the deviation value is smaller than a preset deviation value, judging that the drilling position precision of the spindle reaches the standard.
2. The precision detection method according to claim 1, characterized by comprising, before the obtaining the drilling position precision of the spindle from the preset drilling coordinates and the measured drilling coordinates:
and acquiring the preset coordinate information, and taking the coordinate position of the reference point as the zero position of the coordinate system of the circuit board.
3. An accuracy detecting device, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the accuracy detection method according to any one of claims 1 to 2 when executing the computer program.
4. A computer-readable storage medium, characterized by: computer executable instructions for performing the accuracy detection method according to any one of claims 1 to 2 are stored.
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| JPS58169017A (en) * | 1982-03-29 | 1983-10-05 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Interposer for determining center line of drill hole |
| US4549271A (en) * | 1981-05-29 | 1985-10-22 | Fanuc Limited | Measurement method by numerical control device |
| CN107860347A (en) * | 2017-10-31 | 2018-03-30 | 大族激光科技产业集团股份有限公司 | Drilling machine two pin accuracy checking methods |
| CN112496373A (en) * | 2021-02-01 | 2021-03-16 | 苏州维嘉科技股份有限公司 | Drilling machine and depth control drilling method and system thereof and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112536643B (en) * | 2019-09-23 | 2023-01-24 | 富鼎电子科技(嘉善)有限公司 | Machine health monitoring method and device and computer readable storage medium |
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| US4549271A (en) * | 1981-05-29 | 1985-10-22 | Fanuc Limited | Measurement method by numerical control device |
| JPS58169017A (en) * | 1982-03-29 | 1983-10-05 | インタ−ナシヨナル ビジネス マシ−ンズ コ−ポレ−シヨン | Interposer for determining center line of drill hole |
| CN107860347A (en) * | 2017-10-31 | 2018-03-30 | 大族激光科技产业集团股份有限公司 | Drilling machine two pin accuracy checking methods |
| CN112496373A (en) * | 2021-02-01 | 2021-03-16 | 苏州维嘉科技股份有限公司 | Drilling machine and depth control drilling method and system thereof and storage medium |
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