CN108490871B - Four-axis numerical control milling machine machining method and device, computer equipment and storage medium - Google Patents
Four-axis numerical control milling machine machining method and device, computer equipment and storage medium Download PDFInfo
- Publication number
- CN108490871B CN108490871B CN201810488599.6A CN201810488599A CN108490871B CN 108490871 B CN108490871 B CN 108490871B CN 201810488599 A CN201810488599 A CN 201810488599A CN 108490871 B CN108490871 B CN 108490871B
- Authority
- CN
- China
- Prior art keywords
- machining
- curved surface
- strategy
- processing
- processed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The application provides a four-axis numerical control milling machine processing method, device, computer equipment and storage medium, acquires the processing coordinate system and the processing cutter parameter of treating the processing article, according to the processing coordinate system with the processing cutter parameter generates sharp projection finish machining strategy, according to sharp projection finish machining strategy, calculates and produces sharp projection finish machining cutter route, will sharp projection finish machining cutter route converts into the reference line, according to the reference line generates the reference curved surface, according to the reference curved surface generates curved surface projection finish machining strategy. In the whole process, four-axis linkage machining is realized by a mode of combining linear projection finish machining and curved surface projection finish machining.
Description
Technical Field
The application relates to the technical field of numerical control machine tools, in particular to a four-axis numerical control milling machine machining method and device, computer equipment and a storage medium.
Background
The four-axis numerical control milling machine can process complex models, is easy to expand into a multi-spindle form due to low manufacturing cost, has high processing efficiency and is more and more widely applied in China.
However, as a transitional product between the three-axis numerically controlled milling machine and the five-axis numerically controlled milling machine, the traditional CAM (computer Aided Manufacturing) software does not support this type of machine tool well, and lacks a targeted machining strategy. When the machine tool is actually applied, the performance of the four-axis numerical control milling machine cannot be fully exerted due to the lack of CAM software support.
Disclosure of Invention
In view of the above, it is necessary to provide a four-axis numerically controlled milling machine processing method, a four-axis numerically controlled milling machine processing apparatus, a computer device, and a storage medium, which can realize four-axis linkage processing.
A four-axis numerically controlled milling machine machining method comprises the following steps:
acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
generating a linear projection finish machining strategy according to the machining coordinate system and the machining tool parameters;
calculating and generating a linear projection finish machining tool path according to the linear projection finish machining strategy;
converting the linear projection finish machining tool path into a reference line, and generating a reference curved surface according to the reference line;
and generating a curved surface projection finishing strategy according to the reference curved surface.
In one embodiment, before acquiring the machining coordinate system and the machining tool parameters of the object to be machined, the method further includes:
obtaining an object model to be processed, and creating an object blank to be processed according to the object model to be processed;
and establishing a processing coordinate system of the blank of the object to be processed, responding to a processing cutter selection result of a user, and determining parameters of the processing cutter.
In one embodiment, the establishing of the processing coordinate system of the object blank to be processed includes:
and adjusting the center position of the object model to be processed to be parallel to the long edge of the blank of the object to be processed, and establishing a processing coordinate system of the blank of the object to be processed by taking the center of the bottom of the object model to be processed as an original point.
In one embodiment, the generating a straight line projection finishing strategy according to the machining coordinate system and the machining tool parameters comprises:
and modifying the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and enabling the modified cutter shaft orientation straight line to coincide with a rotating shaft in the four-shaft numerical control milling machine to generate a straight line projection finish machining strategy.
In one embodiment, the generating a reference surface according to the reference line includes:
and rounding the reference line and processing a spline, and generating a reference curved surface through a reconstructed curve and a lofting reconstructed curved surface.
In one embodiment, the generating a curved surface projection finishing strategy according to the reference curved surface includes:
and according to the reference curved surface, setting the cutter shaft to be inclined forwards/obliquely, modifying the cutter shaft limit into a movable cutter shaft, and generating a curved surface projection finishing strategy.
A four-axis numerically controlled milling machine machining device, the device comprising:
the parameter acquisition module is used for acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
the first strategy module is used for generating a linear projection finish machining strategy according to the machining coordinate system and the machining tool parameters;
the path calculation module is used for calculating and generating a linear projection finish machining tool path according to the linear projection finish machining strategy;
the curved surface generation module is used for converting the linear projection finish machining tool path into a reference line and generating a reference curved surface according to the reference line;
and the second strategy module is used for generating a curved surface projection finishing strategy according to the reference curved surface.
In one embodiment, the first strategy module is further configured to modify the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and the modified cutter shaft orientation straight line coincides with a rotating shaft in the four-axis numerically controlled milling machine to generate a straight line projection finishing strategy.
A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the above method when executing the computer program.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
The four-axis numerical control milling machine processing method, the device, the computer equipment and the storage medium obtain a processing coordinate system and processing tool parameters of an object to be processed, generate a linear projection finish machining strategy according to the processing coordinate system and the processing tool parameters, calculate and generate a linear projection finish machining tool path according to the linear projection finish machining strategy, convert the linear projection finish machining tool path into a reference line, generate a reference curved surface according to the reference line, and generate a curved surface projection finish machining strategy according to the reference curved surface. In the whole process, four-axis linkage machining is realized by a mode of combining linear projection finish machining and curved surface projection finish machining.
Drawings
FIG. 1 is a diagram showing an environment in which a four-axis CNC milling machine is used in one embodiment;
FIG. 2 is a schematic flow chart showing a machining method of a four-axis numerically controlled milling machine according to an embodiment;
FIG. 3 is a schematic flow chart of a four-axis CNC milling machine processing method in another embodiment;
FIG. 4 is a schematic diagram of a Zbrush construction model;
FIG. 5 is a schematic view of a finishing tool (taper end mill);
FIG. 6 is a schematic diagram of powermill generated linear projection finishing;
FIG. 7 is a schematic view of a tool path converted to a reference line;
FIG. 8 is a diagram illustrating a format of a conversion curve dgk as an IGES (The Initial Graphics exchange specification);
FIG. 9 is a schematic diagram of the introduction of rhizoctones software;
FIG. 10 is a schematic diagram of the generation of reference planes in the rhinoceros software according to reference lines;
FIG. 11 is a schematic diagram of a powermill in-plane reference surface;
FIG. 12 is a schematic diagram of projection finishing of curved surfaces generated in powermill;
FIG. 13 is a block diagram showing the structure of a four-axis CNC milling machine processing apparatus according to an embodiment;
FIG. 14 is a block diagram showing the construction of a four-axis CNC milling machine processing apparatus according to another embodiment;
FIG. 15 is a diagram showing an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The machining method of the four-axis numerical control milling machine can be applied to the application environment shown in figure 1. The upper computer is connected with the four-axis numerically controlled milling machine, a program for executing the four-axis numerically controlled milling machine processing method is recorded in the upper computer, after the upper computer is powered on, a processing coordinate system and processing tool parameters of an object to be processed are obtained, a linear projection finish machining strategy is generated according to the processing coordinate system and the processing tool parameters, a linear projection finish machining tool path is calculated and generated according to the linear projection finish machining strategy, the linear projection finish machining tool path is converted into a reference line, a reference curved surface is generated according to the reference line, a curved surface projection finish machining strategy is generated according to the reference curved surface, namely the upper computer outputs the linear projection finish machining strategy and the curved surface projection finish machining strategy to the four-axis numerically controlled milling machine, and the four-axis numerically controlled.
As shown in fig. 2, a four-axis numerical control milling machine processing method includes:
s100: and acquiring a processing coordinate system and processing cutter parameters of the object to be processed.
Because different objects to be processed generally have different sizes and shapes, different objects to be processed have different processing coordinate systems and processing tool parameters. The processing coordinate system is generally constructed based on the central position of the object to be processed, and for example, the processing coordinate system may be constructed by using the central point of the bottom of the object to be processed as the origin and the symmetry axis of the object to be processed as the Z axis of the spatial coordinate system. The processing cutter parameters can be based on historical experience data, and suitable processing cutter parameters are automatically selected for the current object to be processed; or receiving the self-defined machining tool parameters input from the outside or responding to the selection operation of the machining tool of the user to generate the corresponding machining tool parameters.
S200: and generating a linear projection finish machining strategy according to the machining coordinate system and the machining tool parameters.
And establishing a machining strategy by adopting a linear projection finish machining mode according to a machining coordinate system and machining tool parameters. In one embodiment, step S200 specifically includes: and modifying the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and enabling the modified cutter shaft orientation straight line to coincide with a rotating shaft in the four-shaft numerical control milling machine to generate a straight line projection finish machining strategy. Specifically, the above process can be completed with the aid of a software program, a model (parameter) of an object to be processed is input into a CAM (computer Aided Manufacturing) software powermill, a processing origin is set at the center of the bottom of the model of the object to be processed, a coordinate system of a processed part is established, a taper end mill is established according to a tool used for finish machining, a processing strategy is established by adopting a linear projection finish machining mode, the orientation of a cutter shaft is changed into a straight line, and the straight line of the orientation of the cutter shaft is changed to coincide with a rotating shaft.
S300: and calculating to generate a linear projection finish machining tool path according to the linear projection finish machining strategy.
For the linear projection finishing strategy, a path for generating a linear projection finishing tool can be calculated. The process can also be assisted by powermill. The calculation in powermill to produce a straight line projected finishing tool path may be specifically performed.
S400: and converting the path of the linear projection finish machining tool into a reference line, and generating a reference curved surface according to the reference line.
And converting the generated straight line projection finish machining tool path into a reference line, processing the reference, and generating a reference curved surface by adopting a curved surface reconstruction mode. In one embodiment, generating the reference surface from the reference line comprises: and rounding the reference line and processing a spline, and generating a reference curved surface through a reconstructed curve and a lofting reconstructed curved surface. Specifically, the process of converting the linear projected finishing tool path into the reference line can also be assisted by powermill, and the powermill reference line operation is executed to convert the linear projected finishing tool path into the reference line. And (3) introducing the reference line into CAD software Rhinoceros, reconstructing a curve and lofting, reconstructing a curved surface, and generating a reference curved surface by taking the reference line as an envelope, wherein the reference curved surface is used as a reference curved surface to guide the movement of the cutter shaft.
S500: and generating a curved surface projection finishing strategy according to the reference curved surface.
And generating a curved surface projection finish machining strategy based on the reference curved surface, wherein the curved surface projection finish machining strategy is used for guiding the machining on the curved surface of the object to be machined. In one embodiment, step S500 includes: and according to the reference curved surface, setting the cutter shaft to be inclined forwards/obliquely, modifying the cutter shaft limit into a movable cutter shaft, and generating a curved surface projection finishing strategy. Specifically, the generated curved surface is guided into powermill through a guide reference curved surface, a processing strategy is established by adopting curved surface projection finish machining, the reference curved surface is selected as a projection curved surface of the strategy, a cutter shaft is set to be inclined forward/inclined, the cutter shaft limit is changed into a movable cutter shaft, and a curved surface projection finish machining cutter path is generated by selecting the projection curved surface.
The four-axis numerical control milling machine processing method comprises the steps of obtaining a processing coordinate system and processing cutter parameters of an object to be processed, generating a linear projection finish machining strategy according to the processing coordinate system and the processing cutter parameters, calculating and generating a linear projection finish machining cutter path according to the linear projection finish machining strategy, converting the linear projection finish machining cutter path into a reference line, generating a reference curved surface according to the reference line, and generating a curved surface projection finish machining strategy according to the reference curved surface. In the whole process, four-axis linkage machining is realized by a mode of combining linear projection finish machining and curved surface projection finish machining.
As shown in fig. 3, in one embodiment, before step S100, the method further includes:
s120: and acquiring a model of the object to be processed, and creating a blank of the object to be processed according to the model of the object to be processed.
S140: and establishing a processing coordinate system of the blank of the object to be processed, responding to a processing cutter selection result of a user, and determining the parameters of the processing cutter.
Different object models to be processed can be constructed according to different shapes of the object to be processed, all shape parameters of the object to be processed are carried in the object model to be processed, and the object model to be processed can be directly processed in the subsequent processing process. Specifically, aiming at the current object model to be machined, an object blank to be machined is created, a machining coordinate system for the blank is established, in addition, a machining tool selection message is pushed to a user, when the user receives the message (for example, the user browses a display screen to display a machining tool selection interface), the machining tool is selected, and the upper computer responds to the machining tool selection result of the user and determines the machining tool parameters.
In one embodiment, establishing a machining coordinate system of the blank of the object to be machined comprises:
and adjusting the center position of the model of the object to be processed to be parallel to the long edge of the blank of the object to be processed, and establishing a processing coordinate system of the blank of the object to be processed by taking the center of the bottom of the model of the object to be processed as an original point. In practical application, a model is built in a software program zbrush, the built model is guided into powermill, a blank is created by clicking, after the blank is automatically calculated, the position of the model is adjusted to enable the center line of the model to be parallel to the long edge of the blank, a machining coordinate system is established in the center of the bottom of the model according to the blank, and a finishing tool fillet taper end mill is created in a tool column in software according to the requirements of finishing.
It should be understood that although the various steps in the flow charts of fig. 2-3 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-3 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In order to further explain the technical scheme of the four-axis numerical control milling machine processing method in detail, the following will take the example of carving statue-pan-tilt kwan-yin as a detailed description. In this embodiment, the software to be used includes powermill2010 version, rhinoceros5 version, zbrush4R 7. The rotating shaft of the four-shaft numerical control milling machine is an A shaft and rotates around an X shaft, and a coordinate system of the four-shaft numerical control milling machine meets an international standard coordinate system.
Step 1: as shown in fig. 4, firstly, a model is built in zbrush, after a pan-tilt-zoom model is built, the model is output as an STL (Standard Template Library) file, then the file is imported into powermill, a blank is created by clicking, after the blank is automatically calculated, the model position is adjusted to enable the center line of the model to be parallel to the long edge of the blank, a machining coordinate system S1 is built at the center of the bottom of the model according to the blank, according to the requirement of finish machining, a finishing tool fillet taper end mill T1 shown in fig. 5 is built in a tool column in software, and the main parameters of the tool are diameter 3.175 and taper diameter 0.2.
Step 2: activating the machining coordinate system S1 created in step 1 and the tool T1, as shown in FIG. 6, creating a linear projection finishing machining strategy in powermill, setting the orientation of the cutter shaft to be a straight line at the cutter shaft part, changing the orientation of the straight line to be an X axis (setting the cutter shaft vector to be 1, 0 and 0), setting the machining step pitch to be 3.0 and the reference line direction to be U, and clicking to calculate to generate a linear projection finishing tool path.
And step 3: as shown in fig. 7, the linear projection finishing tool path generated in step 2 is converted into a reference line, then the reference line is right-clicked in software, the click rounding is selected, the rounding parameter is set to be 0.1, then the right click is performed, the click spline is selected, the newly generated reference line is more smoothly transited, the reference line is the finishing tool path, the normal line of the finishing tool path is close to the normal vector of the model surface, and the reference line is stored as a dgk format file ck.dgk.
And 4, step 4: as shown in fig. 8, in the delcam exchange software, ck.dgk generated in step 3 is opened, and after the open, the saved dgk format curve is completely saved as file ck.igs in the IGES format.
And 5: as shown in fig. 9, curve data ck.igs in the IGES format is imported into rhinoceros, then a reconstructed curve is clicked, the number of key parameter points is set to 100 points, the order is 4, then all selection is performed, click lofting is performed in a curved surface tool, and the key parameters are set as follows: the modeling selection is relaxed, the reconstruction point number (10 control points) is selected to complete lofting, the curve after lofting is selected after the original curve data is deleted, the reconstructed curved surface is clicked, the joint parameter point number is set to be 20, the order is 3, the input component is selected and deleted and pruned again, the reference curved surface in the IGES format shown in the figure 10 is obtained, and the reference curved surface is stored as ckm.
Step 6: as shown in fig. 11, the model part is right-clicked in powermill, a reference surface is introduced, and the ckm.igs generated in step 5 is clicked open, and this reference surface will be used to guide the arbor direction.
And 7: as shown in fig. 12, a curved surface projection finish machining strategy is generated in the engineering of step 1, a tool and a blank are selected, the direction of a reference line is V, the tool shaft is changed to be forward inclined/inclined, the reference curved surface ckm.igs input in step 6 is selected, the limit is that the tool shaft is moved, the azimuth angle is changed to be 0-360 degrees, and projection to a plane is selected. Producing a curved surface projected finish tool path.
And 8: modifying Powermill post-processing, changing a rotating shaft into an A shaft according to the form of a machine tool, rotating around X, modifying other parameters, storing, and performing post-processing to finish generating a machining program.
As shown in fig. 13, a four-axis numerically controlled milling machine processing device includes:
the parameter acquisition module 100 is used for acquiring a processing coordinate system and processing tool parameters of an object to be processed;
the first strategy module 200 is used for generating a linear projection finish machining strategy according to a machining coordinate system and machining tool parameters;
the path calculation module 300 is used for calculating and generating a linear projection finish machining tool path according to a linear projection finish machining strategy;
the curved surface generation module 400 is used for converting the linear projection finish machining tool path into a reference line and generating a reference curved surface according to the reference line;
and a second strategy module 500, configured to generate a curved surface projection finishing strategy according to the reference curved surface.
In the four-axis numerically controlled milling machine processing device, the parameter obtaining module 100 obtains a processing coordinate system and processing tool parameters of an object to be processed, the first strategy module 200 generates a linear projection finishing strategy according to the processing coordinate system and the processing tool parameters, the path calculating module 300 calculates and generates a linear projection finishing tool path according to the linear projection finishing strategy, the curved surface generating module 400 converts the linear projection finishing tool path into a reference line and generates a reference curved surface according to the reference line, and the second strategy module 500 generates a curved surface projection finishing strategy according to the reference curved surface. In the whole process, four-axis linkage machining is realized by combining the linear projection finish machining and the curved surface projection finish machining
In one embodiment, the first strategy module 200 is further configured to modify the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and the modified orientation straight line of the cutter shaft coincides with the rotation axis of the four-axis numerically controlled milling machine, so as to generate a straight line projection finishing strategy.
As shown in fig. 14, in one embodiment, the four-axis numerical control milling machine processing apparatus further includes:
a blank creating module 120, configured to obtain a to-be-processed object model, and create a to-be-processed object blank according to the to-be-processed object model;
and the tool parameter determining module 140 is configured to establish a processing coordinate system of the blank of the object to be processed, and determine a processing tool parameter in response to a result of selecting a processing tool by the user.
In one embodiment, the tool parameter determining module 140 is further configured to adjust a center position of the model of the object to be processed to be parallel to a long side of the blank of the object to be processed, and construct a processing coordinate system of the blank of the object to be processed with a bottom center of the model of the object to be processed as an origin.
In one embodiment, the surface generation module 400 is further configured to round and spline the reference line, and reconstruct the surface through the reconstruction curve and lofting to generate the reference surface.
In one embodiment, the second strategy module 500 is further configured to set the arbor to a forward/tilt orientation based on the reference curved surface, modify the arbor limits to move the arbor, and generate a curved surface projection finishing strategy.
For the specific limitation of the four-axis numerically controlled milling machine processing device, reference may be made to the above limitation on the four-axis numerically controlled milling machine processing method, which is not described herein again. All modules in the four-axis numerical control milling machine processing device can be completely or partially realized through software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 15. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing CAM software data. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to realize a four-axis numerical control milling machine processing method.
Those skilled in the art will appreciate that the architecture shown in fig. 15 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
generating a linear projection finish machining strategy according to a machining coordinate system and machining tool parameters;
calculating and generating a linear projection finish machining tool path according to a linear projection finish machining strategy;
converting the path of the linear projection finish machining tool into a reference line, and generating a reference curved surface according to the reference line;
and generating a curved surface projection finishing strategy according to the reference curved surface.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
acquiring a to-be-processed object model, and creating a to-be-processed object blank according to the to-be-processed object model;
and establishing a processing coordinate system of the blank of the object to be processed, responding to a processing cutter selection result of a user, and determining the parameters of the processing cutter.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and adjusting the center position of the model of the object to be processed to be parallel to the long edge of the blank of the object to be processed, and establishing a processing coordinate system of the blank of the object to be processed by taking the center of the bottom of the model of the object to be processed as an original point.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and modifying the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and enabling the modified cutter shaft orientation straight line to coincide with a rotating shaft in the four-shaft numerical control milling machine to generate a straight line projection finish machining strategy.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and rounding the reference line and processing a spline, and generating a reference curved surface through a reconstructed curve and a lofting reconstructed curved surface.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and according to the reference curved surface, setting the cutter shaft to be inclined forwards/obliquely, modifying the cutter shaft limit into a movable cutter shaft, and generating a curved surface projection finishing strategy.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
generating a linear projection finish machining strategy according to a machining coordinate system and machining tool parameters;
calculating and generating a linear projection finish machining tool path according to a linear projection finish machining strategy;
converting the path of the linear projection finish machining tool into a reference line, and generating a reference curved surface according to the reference line;
and generating a curved surface projection finishing strategy according to the reference curved surface.
In one embodiment, the computer program when executed by the processor further performs the steps of:
acquiring a to-be-processed object model, and creating a to-be-processed object blank according to the to-be-processed object model;
and establishing a processing coordinate system of the blank of the object to be processed, responding to a processing cutter selection result of a user, and determining the parameters of the processing cutter.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and adjusting the center position of the model of the object to be processed to be parallel to the long edge of the blank of the object to be processed, and establishing a processing coordinate system of the blank of the object to be processed by taking the center of the bottom of the model of the object to be processed as an original point.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and modifying the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and enabling the modified cutter shaft orientation straight line to coincide with a rotating shaft in the four-shaft numerical control milling machine to generate a straight line projection finish machining strategy.
In one embodiment, the computer program when executed by the processor further performs the steps of:
and rounding the reference line and processing a spline, and generating a reference curved surface through a reconstructed curve and a lofting reconstructed curved surface.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A four-axis numerically controlled milling machine machining method comprises the following steps:
acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
generating a linear projection finish machining strategy according to the machining coordinate system and the machining tool parameters;
calculating and generating a linear projection finish machining tool path according to the linear projection finish machining strategy;
converting the linear projection finish machining tool path into a reference line, and generating a reference curved surface according to the reference line;
generating a curved surface projection finish machining strategy according to the reference curved surface;
generating a linear projection finish machining strategy according to the machining coordinate system and the machining tool parameters comprises: setting a machining origin at the center of the bottom of the model of the object to be machined, establishing a machining part coordinate system, establishing a taper end milling cutter according to a tool adopted by finish machining, establishing a machining strategy by adopting a linear projection finish machining mode, changing the orientation of a cutter shaft into a straight line, and coinciding the straight line with the rotating shaft.
2. The method according to claim 1, wherein before the obtaining of the machining coordinate system and the machining tool parameters of the object to be machined, the method further comprises:
obtaining an object model to be processed, and creating an object blank to be processed according to the object model to be processed;
and establishing a processing coordinate system of the blank of the object to be processed, responding to a processing cutter selection result of a user, and determining parameters of the processing cutter.
3. The method of claim 2, wherein the establishing of the machining coordinate system of the blank of the object to be machined comprises:
and adjusting the center position of the object model to be processed to be parallel to the long edge of the blank of the object to be processed, and establishing a processing coordinate system of the blank of the object to be processed by taking the center of the bottom of the object model to be processed as an original point.
4. The method of claim 1, wherein generating a reference surface from the reference line comprises:
and rounding the reference line and processing a spline, and generating a reference curved surface through a reconstructed curve and a lofting reconstructed curved surface.
5. The method of claim 1, wherein generating a surface projection finishing strategy from the reference surface comprises:
and according to the reference curved surface, setting the cutter shaft to be inclined forwards/obliquely, modifying the cutter shaft limit into a movable cutter shaft, and generating a curved surface projection finishing strategy.
6. The utility model provides a four-axis numerically controlled fraise machine processingequipment which characterized in that, the device includes:
the parameter acquisition module is used for acquiring a processing coordinate system and processing cutter parameters of an object to be processed;
the first strategy module is used for setting a processing origin at the center of the bottom of the model of the object to be processed, establishing a coordinate system of a processed part, establishing a taper end milling cutter according to a cutter adopted by finish machining, establishing a processing strategy by adopting a linear projection finish machining mode, changing the orientation of a cutter shaft into a straight line, and modifying the orientation of the cutter shaft to be coincident with a rotating shaft;
the path calculation module is used for calculating and generating a linear projection finish machining tool path according to the linear projection finish machining strategy;
the curved surface generation module is used for converting the linear projection finish machining tool path into a reference line and generating a reference curved surface according to the reference line;
and the second strategy module is used for generating a curved surface projection finishing strategy according to the reference curved surface.
7. The device according to claim 6, wherein the first strategy module is further configured to modify the orientation of the cutter shaft into a straight line according to the machining coordinate system and the machining cutter parameters, and the modified cutter shaft orientation straight line coincides with a rotation axis in the four-axis numerically controlled milling machine to generate a straight line projection finishing strategy.
8. The apparatus of claim 6, wherein the surface generation module is further configured to round and spline the reference line, and generate the reference surface by reconstructing the surface through curve reconstruction and lofting.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488599.6A CN108490871B (en) | 2018-05-21 | 2018-05-21 | Four-axis numerical control milling machine machining method and device, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488599.6A CN108490871B (en) | 2018-05-21 | 2018-05-21 | Four-axis numerical control milling machine machining method and device, computer equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108490871A CN108490871A (en) | 2018-09-04 |
| CN108490871B true CN108490871B (en) | 2020-02-14 |
Family
ID=63353368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488599.6A Active CN108490871B (en) | 2018-05-21 | 2018-05-21 | Four-axis numerical control milling machine machining method and device, computer equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108490871B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613892B (en) * | 2019-02-01 | 2021-06-04 | 王硕 | Post-processing algorithm for realizing linkage processing of numerical control four-axis vertical milling machine |
| CN109759627B (en) * | 2019-02-01 | 2020-08-25 | 淮阴工学院 | Method for realizing vertical conversion of numerical control four-axis horizontal milling machine |
| CN110405837B (en) * | 2019-08-12 | 2021-09-21 | 广东三维家信息科技有限公司 | Technological processing method, device and processing equipment |
| CN110568815B (en) * | 2019-09-24 | 2021-11-30 | 华侨大学 | Robot machining numerical control system and method applied to engraving and machining of three-dimensional stone |
| CN111063020B (en) * | 2019-11-19 | 2023-04-07 | 中国第一汽车股份有限公司 | Workpiece three-dimensional contour machining method based on PowerMill software |
| CN111679631B (en) * | 2020-05-26 | 2023-01-17 | 东莞市机明软件科技有限公司 | Tool path parameter template self-adaptive dynamic adjustment method based on PowerMILL secondary development |
| CN113649668B (en) * | 2021-08-17 | 2022-12-13 | 熵智科技(深圳)有限公司 | Workpiece template point cloud generation method and device, computer and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540976B (en) * | 2012-02-22 | 2013-10-16 | 北京卫星制造厂 | Entity-based milling simulating method for efficiently extracting cutting angle range |
| CN104384586A (en) * | 2014-09-30 | 2015-03-04 | 四川泛华航空仪表电器有限公司 | Method for processing integral impeller by using four-axis numerical-control milling machine |
| CN105880953A (en) * | 2016-06-20 | 2016-08-24 | 西安工业大学 | Method for processing aviation blade |
| CN107505913A (en) * | 2017-07-10 | 2017-12-22 | 西北工业大学 | Maximum based on the four-shaft numerically controlled processing of blisk passage is applicable tool radius computational methods |
| CN107861467A (en) * | 2017-10-27 | 2018-03-30 | 航天材料及工艺研究所 | The axle dead axle of endless knife four processing cutter spacing determines method, apparatus and electronic equipment |
-
2018
- 2018-05-21 CN CN201810488599.6A patent/CN108490871B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540976B (en) * | 2012-02-22 | 2013-10-16 | 北京卫星制造厂 | Entity-based milling simulating method for efficiently extracting cutting angle range |
| CN104384586A (en) * | 2014-09-30 | 2015-03-04 | 四川泛华航空仪表电器有限公司 | Method for processing integral impeller by using four-axis numerical-control milling machine |
| CN105880953A (en) * | 2016-06-20 | 2016-08-24 | 西安工业大学 | Method for processing aviation blade |
| CN107505913A (en) * | 2017-07-10 | 2017-12-22 | 西北工业大学 | Maximum based on the four-shaft numerically controlled processing of blisk passage is applicable tool radius computational methods |
| CN107861467A (en) * | 2017-10-27 | 2018-03-30 | 航天材料及工艺研究所 | The axle dead axle of endless knife four processing cutter spacing determines method, apparatus and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108490871A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108490871B (en) | Four-axis numerical control milling machine machining method and device, computer equipment and storage medium | |
| CN102147600B (en) | Numerical control interpolation system for real-time generation of curvature-continuous path | |
| Imani et al. | Geometric simulation of ball-end milling operations | |
| CN105700466A (en) | Curvature fairing method for high-speed numerical control processing track | |
| CN104942808A (en) | Robot motion path off-line programming method and system | |
| JP4233147B2 (en) | How to determine an applicable feed rate for a machine tool | |
| CN108170101B (en) | Interpolation method and system for polynomial spline curve | |
| CN105302070A (en) | Post-processing method for non-orthogonal swing head rotary table type five-axis machine tool | |
| Liang et al. | A combined 3D linear and circular interpolation technique for multi-axis CNC machining | |
| Zhao et al. | STEP-compliant CNC with T-spline enabled toolpath generation capability | |
| CN106292542B (en) | A kind of universal post processing method and device of band C axis Vehicle Processing | |
| Ye et al. | Geometric parameter optimization in multi-axis machining | |
| JPS6263307A (en) | Method for producing composite curved surface | |
| My et al. | New feed rate optimization formulation in a parametric domain for 5-axis milling robots | |
| Solvang et al. | STEP-NC based industrial robot CAM system | |
| Min et al. | A C2 continuous trajectory planning method for 6-DOF rotational robot manipulators | |
| Martinov et al. | The approach of creating a particular postprocessor and using CNC measuring cycles | |
| CN112231901B (en) | Offset calculation method of T spline surface | |
| CN113408148B (en) | Pipe cutting simulation method based on SolidWorks secondary development | |
| Živanović et al. | Application of the STEP-NC standard ISO 10303 AP238 for turning operations | |
| García-Barbosa et al. | The manufacture of a maxillofacial prosthesis from an axial tomography using simulation technologies with a virtual machine tool and four-axis machining | |
| Wang et al. | An optimized path planning method for off-line programming of a industrial robot | |
| CN113618253B (en) | Laser processing method, system, laser processing controller and storage medium | |
| Borowski et al. | Using parameterization of objects in autodesk inventor in designing structural connectors | |
| Nagata et al. | CLS data interpolation with spline curves and its post processing for generating a robot language |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |