CN111830902B - Stamping die oil leakage hole manufacturing method, storage medium and CNC (computer numerical control) die machining machine tool - Google Patents
Stamping die oil leakage hole manufacturing method, storage medium and CNC (computer numerical control) die machining machine tool Download PDFInfo
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- CN111830902B CN111830902B CN202010759200.0A CN202010759200A CN111830902B CN 111830902 B CN111830902 B CN 111830902B CN 202010759200 A CN202010759200 A CN 202010759200A CN 111830902 B CN111830902 B CN 111830902B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- General Physics & Mathematics (AREA)
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- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
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Abstract
The invention relates to the field of machine tool machining, in particular to a method for manufacturing an oil leakage hole of a stamping die, a storage medium and a CNC (computer numerical control) die machining machine tool. The method comprises the steps of reading a lower die structure in a 3D graph; acquiring all horizontal planes on a 3D drawing, judging whether the adjacent surface of each horizontal plane has a vertical surface higher than the horizontal plane, and if so, identifying the space surrounded by the horizontal plane and the adjacent vertical surface as a groove; screening out a closed groove which can form a closed space after the upper die and the lower die are pressed together from the found groove; an oil leakage hole with a set size is formed in each closed groove; and converting the machining code according to the 3D diagram to an external CNC (computer numerical control) die machining machine tool for machining. According to the invention, the closed groove capable of enclosing into the closed space after the upper die and the lower die are pressed is identified, and the oil leakage hole is automatically survived in the closed groove and is fed to the CNC die machining machine tool for machining, so that the introduction of manpower can be avoided, and the purposes of shortening the die manufacturing period and quickly machining are achieved.
Description
Technical Field
The invention relates to the field of machine tool machining, in particular to a method for manufacturing an oil leakage hole of a stamping die, a storage medium and a CNC (computer numerical control) die machining machine tool, wherein a computer program is stored in the storage medium, and can be executed by a processor of the CNC die machining machine tool to realize the method.
Background
The manufacturing process of the stamping die needs to be matched with oil (such as engine oil, lubricating oil and the like) for processing, so that oil leakage holes need to be processed at positions where grooves (such as a nitrogen groove, a guide sleeve, a guide column groove, a lower die avoiding groove and the like) can store oil on the lower die of the die, and the oil leakage holes provide a containing space for the oil on the die when the upper die and the lower die are molded, so that the stamping effect is prevented from being influenced by the oil.
Traditional oil leak hole processing mode is that the factory generates the code in inputting the 3D picture of mould upper and lower mould the treater and gives CNC mould machine tool, and after the mould in kind was processed out by CNC mould machine tool, the engineer dug out the oil leak hole in corresponding inslot through the material test, and this kind of method is consuming time longer, and the time is uncontrollable, is unfavorable for producing the rapid prototyping of line.
Disclosure of Invention
The invention aims to realize automatic manufacture of the oil leakage hole of the stamping die, avoid manpower introduction and achieve the aim of quick processing.
The purpose of the invention is realized by the following technical scheme:
the method for manufacturing the oil leakage hole of the stamping die comprises the following steps:
a drawing reading step, which is used for reading the lower die structure in the 3D drawing;
further comprising the following steps performed after the drawing reading step:
a groove identification step, namely acquiring all horizontal planes on the 3D drawing, judging whether the adjacent surfaces of each horizontal plane have vertical surfaces higher than the horizontal plane, and identifying the space surrounded by the horizontal plane and the adjacent vertical surfaces as a groove if the adjacent surfaces of each horizontal plane have vertical surfaces higher than the horizontal plane;
screening, namely screening a closed groove which can be enclosed into a closed space after the upper die and the lower die are pressed together from the found groove;
an oil leak hole producing step for producing an oil leak hole of a set size in each of the closed grooves;
and a processing step for converting the processing code according to the 3D diagram to an external CNC (computer numerical control) die processing machine tool for processing.
Wherein the screening step further comprises: and detecting each inner contour surface in each groove, and if no through hole is formed on each inner contour surface, defining the groove as a closed groove.
Wherein the through-hole presence detection method comprises: whether a channel formed by surrounding a plurality of inner contour surfaces or one inner contour curved surface exists or not is detected, no end surface exists at two ends of the channel, and if yes, the through hole exists on the inner contour surface is judged.
Wherein the screening step further comprises: and analyzing the machining precision of each inner contour surface based on the color of each inner contour surface in the groove for each groove, and if three or more finish machining surfaces exist in each inner contour surface and each finish machining surface is adjacent to each other in pairs, defining the groove as a closed groove.
The method for acquiring the horizontal plane in the slot identification step comprises the following steps: traversing the 3D drawing to obtain all planes on the 3D drawing, analyzing all the planes one by one, and defining a plane with the normal direction consistent with the vertical direction as a horizontal plane.
Wherein the vertical direction is obtained from a user pre-input instruction.
Wherein the oil leak hole manufacturing step further comprises: and analyzing the inner contour line of each closed slot, searching one circular arc characteristic, deviating a set distance to the center of the slot by taking the circular arc characteristic as a starting point, and generating an oil leakage hole at the deviated position.
A computer readable storage medium is also provided, wherein the computer readable storage medium stores one or more programs which, when executed by a processor, implement the above-described method.
Still provide a CNC mould machine tool, include:
a processor; and the number of the first and second groups,
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the method described above.
According to the invention, the closed groove which can be enclosed into the closed space after the upper die and the lower die are pressed is identified, and the oil leakage hole is automatically survived in the closed groove to be fed to the CNC die processing machine tool for processing, so that the introduction of manpower can be avoided, and the purposes of shortening the die manufacturing period and rapidly processing can be achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Detailed Description
In the embodiment, UG software is used as a CAD platform, a VS2015 (with an internal compiler being Microsoft Visual studio2010) integration environment is used, UG functions and an NXOpenC + + library are compiled to generate DLL (dynamic link library) through the VS2015 under a Windows operating system, so that UG software can be called to generate codes for controlling the CNC machining machine tool to machine, and the codes are input into the CNC machining machine tool to control the CNC machining machine tool to machine. Among the above, UG software is called unigraphicnx, which is an interactive CAD/CAM/CAE/PDM (computer aided design, aided manufacturing, aided engineering, product data management) software system applied to PC, and provides a good solution for virtual product design and process design, and is commonly used for designing, machining, simulating, and NC code generation of hardware parts, wherein the NC code can be input into a CNC machine to control the CNC machine to perform part machining.
The 3D drawings referred to in this embodiment are all standard 3D drawings in the hardware manufacturing industry, and for each surface in the groove in the 3D drawings, a specific color is marked to indicate the processing precision (fine processing, rough processing) and the processing type of the surface.
In the manufacturing method of the oil leakage hole of the stamping die, when the manufacturing method is implemented, firstly, a 3D image of a lower die of the die is guided into UG software for reading, after the reading is successful, a 3D structure of the lower die is displayed in the UG software, then, a program code module which is written in the UG software in advance is manually operated, and the program code module automatically executes the following steps:
s1, traversing the 3D drawing to obtain all planes on the 3D drawing;
s2, presetting a Z axis as a vertical direction through a human-computer interaction instruction, analyzing all planes one by one, screening out faces of which the normal direction is consistent with the vertical direction, wherein the screened faces are horizontal faces, and analyzing the rule of the grooves to obtain that the adjacent faces of the bottom faces of the grooves have vertical faces higher than the bottom faces;
s3, analyzing the found grooves one by one, and screening out a closed groove which can be formed by enclosing an enclosed space after the upper die and the lower die are pressed, wherein the judgment mode of the closed groove comprises the following two modes:
for each groove, detecting each inner contour surface in the groove, and if no through hole exists on each inner contour surface, defining the groove as a closed groove, wherein the existence of the through hole is detected by detecting whether a channel formed by a plurality of inner contour surfaces or one inner contour curved surface surrounds the through hole, and the two ends of the channel are not end surfaces, and if yes, determining that the through hole exists on the inner contour surface;
for each groove, analyzing the machining precision of each inner contour surface based on the color marked by each inner contour surface in the groove, and acquiring the information of the finish machining surface in the groove, wherein according to statistical analysis, the groove of the lower die, in which a through hole exists but a closed space is still formed after the through hole is pressed with the upper die, is inevitably provided with three or more finish machining surfaces, and each finish machining surface is adjacent in pairs, and on the basis, if three or more finish machining surfaces exist in the groove and the finish machining surfaces are adjacent in pairs, defining the groove as a closed groove;
s4, generating oil leakage holes with set sizes in each closed groove, specifically, analyzing the inner contour line of each closed groove to facilitate the feed of a machine tool, searching for one of the arc characteristics, offsetting the arc characteristic to the center of the groove by a set distance by taking the arc characteristic as a starting point, and generating the oil leakage holes at the offset position, wherein the depth and the diameter of the oil leakage holes are set according to the industry standard.
And S5, after oil leakage holes are formed in all the closed grooves, converting the 3D drawing of the lower die into a machining code according to the prior art, inputting the machining code into a CNC (computer numerical control) die machining machine tool to start machining, and directly converting the 3D drawing of the upper die into the machining code without changing the machining code and sending the machining code to the CNC die machining machine tool to be machined.
According to the manufacturing method of the oil leakage hole of the stamping die, the closed groove which can be enclosed into the closed space after the upper die and the lower die are pressed is identified, and the oil leakage hole is automatically survived in the closed groove to be processed by a CNC die processing machine tool, so that the introduction of manpower can be avoided, and the purposes of shortening the die manufacturing period and rapidly processing the die are achieved.
It should be noted that:
in order to facilitate the change of engineers, the generated oil leakage holes are highlighted in UG software so as to facilitate quick positioning and can be dynamically moved, deleted and the like;
the method for manufacturing the oil leakage hole of the press die according to the present embodiment can be converted into program steps and devices that can be stored in a computer storage medium, and implemented by a method called and executed by a controller of the CNC die machining tool.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The manufacturing method of the oil leakage hole of the stamping die comprises the following steps:
a drawing reading step, which is used for reading the lower die structure in the 3D drawing;
the method is characterized by further comprising the following steps executed after the drawing reading step:
a groove identification step, namely acquiring all horizontal planes on the 3D drawing, judging whether the adjacent surfaces of each horizontal plane have vertical surfaces higher than the horizontal plane, and identifying the space surrounded by the horizontal plane and the adjacent vertical surfaces as a groove if the adjacent surfaces of each horizontal plane have vertical surfaces higher than the horizontal plane;
screening, namely screening closed grooves which can form a closed space by the pressed upper die and the pressed lower die from the found grooves, detecting each inner contour surface in each groove, and defining the groove as a closed groove if each inner contour surface has no through hole;
an oil leak hole manufacturing step for generating an oil leak hole of a set size in each of the closed grooves, further comprising: for each closed slot, analyzing the inner contour line of the closed slot, searching one of the circular arc characteristics, taking the circular arc characteristic as a starting point, offsetting a set distance to the center of the slot, and generating an oil leakage hole at the offset position;
and a processing step for converting the processing code according to the 3D diagram to an external CNC (computer numerical control) die processing machine tool for processing.
2. The method of claim 1, wherein the means for detecting the presence of the through-hole comprises: whether a channel formed by surrounding a plurality of inner contour surfaces or one inner contour curved surface exists or not is detected, no end surface exists at two ends of the channel, and if yes, the through hole exists on the inner contour surface is judged.
3. The method of claim 1, wherein the screening step further comprises: and analyzing the machining precision of each inner contour surface in each groove based on the color of each inner contour surface in the groove, and if three or more finish machining surfaces exist in each inner contour surface and the finish machining surfaces are adjacent to each other in pairs, defining the groove as a closed groove.
4. The method of claim 1, wherein the method of acquiring the level in the slot identifying step comprises: traversing the 3D drawing to obtain all planes on the 3D drawing, analyzing all the planes one by one, and defining a plane with the normal direction consistent with the vertical direction as a horizontal plane.
5. The method of claim 4, wherein: the vertical direction is obtained from a user pre-input instruction.
6. A storage medium, wherein the storage medium stores one or more programs that, when executed by a processor, implement the method of any of claims 1-5.
CNC die processing machine, include:
a processor; and the number of the first and second groups,
a memory arranged to store computer executable instructions that, when executed, cause the processor to perform the method of any one of claims 1-5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010759200.0A CN111830902B (en) | 2020-07-31 | 2020-07-31 | Stamping die oil leakage hole manufacturing method, storage medium and CNC (computer numerical control) die machining machine tool |
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| CN202010759200.0A CN111830902B (en) | 2020-07-31 | 2020-07-31 | Stamping die oil leakage hole manufacturing method, storage medium and CNC (computer numerical control) die machining machine tool |
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| CN111830902A CN111830902A (en) | 2020-10-27 |
| CN111830902B true CN111830902B (en) | 2022-07-12 |
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| CN112846886B (en) * | 2020-12-31 | 2022-07-01 | 广州科源数控科技有限公司 | Hole site positioning method of machine tool based on graphic file |
| CN114074390B (en) * | 2021-11-23 | 2024-04-26 | 苏州博宇科技有限公司 | Machining system and method for automation of plastic mold electrode |
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Address after: 523000 Taozi Industrial Park, cuntou village, Hengli Town, Dongguan City, Guangdong Province Patentee after: Guangdong Zhongtai Industrial Technology Co.,Ltd. Address before: 523475 Taozi Industrial Park, cuntou village, Hengli Town, Dongguan City, Guangdong Province Patentee before: Dongguan Zhongtai Mould Co.,Ltd. |