CN117148783B - Automatic correction method for cutter parameters of numerical control machine tool - Google Patents
Automatic correction method for cutter parameters of numerical control machine tool Download PDFInfo
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- 238000012937 correction Methods 0.000 title claims abstract description 112
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- G—PHYSICS
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- 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
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- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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Abstract
The disclosure provides an automatic correction method for cutter parameters of a numerical control machine tool, which relates to the technical field of numerical control cutter correction, and comprises the following steps: configuring a reference braking sequence based on a numerical control machine tool; setting a target cutter feeding mode and a target numerical control parameter based on numerical control machining requirements as numerical control braking information; controlling a monitoring sensor to synchronously monitor working conditions and transmit data back, and determining numerical control monitoring data; performing numerical control off-axis analysis and correction compensation to determine numerical control tool supplementing information; performing parameter control conversion on the numerical control tool supplementing information, determining tool supplementing braking parameters and transmitting the parameters to a central control system of the numerical control machine tool; and carrying out automatic machining correction management on the numerical control machine tool. According to the numerical control machine tool machining efficiency improving method and device, the technical problem that machining efficiency of the numerical control machine tool is low due to low automatic correction accuracy and efficiency of cutter parameters in the prior art can be solved, the aim of improving the automatic correction accuracy and efficiency of the cutter parameters is achieved, and the technical effect of improving the machining efficiency of the numerical control machine tool is achieved.
Description
Technical Field
The disclosure relates to the technical field of numerical control tool correction, in particular to an automatic tool parameter correction method of a numerical control machine tool.
Background
The numerical control machine tool automatically processes the machined part according to the processing procedure which is compiled in advance. At present, in the existing process of programming and adjusting cutter parameters of a numerical control machine tool, a cutter is required to be manually loaded, numerical control machining parameters and cutter information are manually input to carry out numerical control machining, a great deal of manpower is wasted easily, the manually loaded cutter of the numerical control machining parameters is inconsistent with programming information, programming errors exist, and the like, and the machining process and the machining period are affected by manual conversion after the cutter is machined, so that a method is needed to solve the problems.
In summary, in the prior art, the technical problem of lower machining efficiency of the numerical control machine tool is caused by lower accuracy and efficiency of automatic correction of tool parameters.
Disclosure of Invention
The disclosure provides an automatic correction method for cutter parameters of a numerical control machine tool, which is used for solving the technical problem of lower machining efficiency of the numerical control machine tool caused by lower automatic correction accuracy and efficiency of cutter parameters in the prior art.
According to a first aspect of the present disclosure, there is provided a tool parameter automatic correction method of a numerical control machine tool, including: configuring a reference braking sequence based on the numerical control machine tool based on numerical control machining requirements of a target workpiece; setting a target cutter feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target cutter feeding mode comprises a single cutter feeding mode and a fusion feeding mode; based on the numerical control braking information, processing a workpiece, and combining a numerical control monitoring module, controlling a monitoring sensor to synchronously monitor working conditions and transmit data back, and determining numerical control monitoring data, wherein a data back node and a key feeding node have concurrency; the numerical control monitoring data flow is transferred to a numerical control off-axis correction module, numerical control off-axis analysis and correction compensation are carried out, and numerical control knife supplementing information is determined, wherein the numerical control off-axis correction module is embedded with the reference braking sequence, and the numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value; based on a bottom layer control mechanism of the numerical control machine tool, performing parameter control conversion on the numerical control tool supplementing information, determining tool supplementing braking parameters and transmitting the parameters to a central control system of the numerical control machine tool; and carrying out automatic machining correction management on the numerical control machine based on the cutter supplementing braking parameters.
According to a second aspect of the present disclosure, there is provided a tool parameter automatic correction system of a numerical control machine tool, comprising: the reference braking sequence obtaining module is used for configuring a reference braking sequence based on the numerical control machine tool based on numerical control machining requirements of a target workpiece; the numerical control braking information acquisition module is used for setting a target cutter feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target cutter feeding mode comprises a single-cutter feeding mode and a fusion feeding mode; the numerical control monitoring data acquisition module is used for processing the workpiece based on the numerical control braking information, controlling the monitoring sensor to synchronously monitor working conditions and transmit data back by combining the numerical control monitoring module, and determining numerical control monitoring data, wherein a data back node has synchronism with a key feeding node; the numerical control knife supplementing information obtaining module is used for transferring the numerical control monitoring data flow to the numerical control off-axis correction module, carrying out numerical control off-axis analysis and correction compensation and determining numerical control knife supplementing information, wherein the numerical control off-axis correction module is embedded with the reference braking sequence, and the numerical control knife supplementing information comprises a knife supplementing cut-in node, a feeding compensation direction and a feeding compensation value; the cutter supplementing braking parameter obtaining module is used for carrying out parameter control conversion on the numerical control cutter supplementing information based on a bottom layer control mechanism of the numerical control machine tool, determining cutter supplementing braking parameters and transmitting the cutter supplementing braking parameters to a central control system of the numerical control machine tool; and the automatic machining correction management module is used for carrying out automatic machining correction management on the numerical control machine tool based on the cutter supplementing braking parameters.
One or more technical solutions provided in the present disclosure have at least the following technical effects or advantages: according to the numerical control machining requirement based on a target machined part, a reference braking sequence based on the numerical control machine tool is configured; setting a target cutter feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target cutter feeding mode comprises a single cutter feeding mode and a fusion feeding mode; based on the numerical control braking information, processing a workpiece, and combining a numerical control monitoring module, controlling a monitoring sensor to synchronously monitor working conditions and transmit data back, and determining numerical control monitoring data, wherein a data back node and a key feeding node have concurrency; the numerical control monitoring data flow is transferred to a numerical control off-axis correction module, numerical control off-axis analysis and correction compensation are carried out, and numerical control knife supplementing information is determined, wherein the numerical control off-axis correction module is embedded with the reference braking sequence, and the numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value; based on a bottom layer control mechanism of the numerical control machine tool, performing parameter control conversion on the numerical control tool supplementing information, determining tool supplementing braking parameters and transmitting the parameters to a central control system of the numerical control machine tool; based on the cutter supplementing braking parameters, the automatic machining correction management of the numerical control machine tool is performed, the technical problem that in the prior art, the machining efficiency of the numerical control machine tool is low due to low automatic correction accuracy and efficiency of cutter parameters is solved, the aim of improving the automatic correction accuracy and efficiency of the cutter parameters is achieved, and the technical effect of improving the machining efficiency of the numerical control machine tool is achieved.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.
Drawings
For a clearer description of the present disclosure or of the prior art, the drawings used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only exemplary and that other drawings may be obtained, without inventive effort, by a person skilled in the art, from the provided drawings.
Fig. 1 is a schematic flow chart of an automatic tool parameter correction method for a numerically-controlled machine tool according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of configuring a reference braking sequence based on a numerical control machine tool in the automatic correction method of tool parameters of the numerical control machine tool according to the embodiment of the disclosure;
fig. 3 is a schematic structural diagram of an automatic tool parameter correction system of a numerically-controlled machine tool according to an embodiment of the present disclosure.
Reference numerals illustrate: the system comprises a reference braking sequence obtaining module 11, a numerical control braking information obtaining module 12, a numerical control monitoring data obtaining module 13, a numerical control tool supplementing information obtaining module 14, a tool supplementing braking parameter obtaining module 15 and an automatic processing correction management module 16.
Detailed Description
Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Example 1
An embodiment of the present disclosure provides a method for automatically correcting a tool parameter of a numerically-controlled machine tool, and is described with reference to fig. 1, where the method includes:
the method provided by the embodiment of the disclosure comprises the following steps:
configuring a reference braking sequence based on the numerical control machine tool based on numerical control machining requirements of a target workpiece;
specifically, the target workpiece is a workpiece to be subjected to numerical control machining by a cutter of a numerical control machine tool. And acquiring numerical control processing requirements according to the historical processing record of the target workpiece, further, decomposing the numerical control processing requirements according to the structure of the target workpiece, setting processing nodes for the processing control process of the target workpiece, configuring node numerical control references based on a numerical control machine tool at the processing nodes, and determining a plurality of node numerical control references. And establishing a mapping of a plurality of processing nodes and a plurality of node numerical control references, and combining to generate a datum braking sequence.
Setting a target cutter feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target cutter feeding mode comprises a single cutter feeding mode and a fusion feeding mode;
specifically, a target tool feeding mode based on numerical control machining requirements is set, wherein the tool automatic feeding mode comprises a continuous feeding mode, a single-step feeding mode and a pulse feeding mode. Aiming at numerical control machining requirements, machining difficulty, machining precision and machining efficiency are used as constraint conditions, and each numerical control machining procedure is determined to have different machining difficulty, machining precision and machining efficiency. And (3) acquiring a plurality of machining procedures, and matching a single-tool feeding mode or a fusion feeding mode for each machining procedure according to the size and structure of the target workpiece and the numerical control machining requirement of the target workpiece. And setting a target numerical control parameter based on the numerical control machining requirement. For example, the target numerical control parameters are a feed direction, a feed speed, a spindle rotation speed, a cutting depth, and the like. And taking the feeding mode of the target cutter and the target numerical control parameter as numerical control braking information.
Based on the numerical control braking information, processing a workpiece, and combining a numerical control monitoring module, controlling a monitoring sensor to synchronously monitor working conditions and transmit data back, and determining numerical control monitoring data, wherein a data back node and a key feeding node have concurrency;
specifically, the numerical control machine tool processes a workpiece on a target workpiece according to numerical control braking information, a numerical control monitoring module of the numerical control machine tool is combined, a monitoring sensor in the numerical control monitoring module is controlled to synchronously monitor working conditions and transmit data back, and the working condition monitoring data and the feedback data are combined to determine numerical control monitoring data. The working condition monitoring of the key feeding nodes is extracted and data is returned, and then the data return nodes and the key feeding nodes have concurrency.
The numerical control monitoring data flow is transferred to a numerical control off-axis correction module, numerical control off-axis analysis and correction compensation are carried out, and numerical control knife supplementing information is determined, wherein the numerical control off-axis correction module is embedded with the reference braking sequence, and the numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value;
specifically, the numerical control off-axis correction module is embedded with a reference braking sequence as a comparison standard. And transferring the numerical control monitoring data stream to a numerical control off-axis correction module, and comparing the reference braking sequence with the numerical control monitoring data when the data is transmitted back to the node, namely performing numerical control off-axis analysis to generate numerical control off-axis information. By adjusting the components of the numerically controlled machine tool, for example, the dimensions of the moving table, the drive spindle, the machining props, etc. And (5) finishing correction compensation. And determining numerical control tool supplementing information. The numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value. The knife-compensating cut-in node is a process stage node for knife-compensating regulation and control. The feeding compensation value is a feeding distance, which is a feeding parameter.
Based on a bottom layer control mechanism of the numerical control machine tool, performing parameter control conversion on the numerical control tool supplementing information, determining tool supplementing braking parameters and transmitting the parameters to a central control system of the numerical control machine tool;
specifically, the control mechanism is based on the bottom layer of the numerical control machine tool. For example, the relative position of the component coordinate system of the numerical control machine tool on the machine coordinate system, namely the installation position of the part on the machine tool, the dimensional parameters of the relative movement of the tool and the component, the process route of the component machining, the process parameters of the cutting machining, the actions of the auxiliary device and the like are determined. And obtaining all the processing information such as movement, size, technological parameters and the like of the component. And performing parameter control conversion on the numerical control knife supplementing information, converting the numerical control knife supplementing information of the parameters into control data knife supplementing braking parameters, determining the knife supplementing braking parameters and transmitting the knife supplementing braking parameters to a central control system of the numerical control machine tool.
And carrying out automatic machining correction management on the numerical control machine based on the cutter supplementing braking parameters.
Specifically, based on the tool supplementing braking parameters, a braking command is generated through a central control system of the numerical control machine tool, and automatic machining correction management of the numerical control machine tool is performed. The technical problem that in the prior art, the machining efficiency of the numerical control machine tool is low due to low automatic correction accuracy and efficiency of the cutter parameters can be solved, the aim of improving the automatic correction accuracy and efficiency of the cutter parameters is achieved, and the technical effect of improving the machining efficiency of the numerical control machine tool is achieved.
The method provided by the embodiment of the disclosure further comprises the following steps:
decomposing the numerical control machining requirement, and determining a plurality of key feeding nodes;
configuring relative space point positions and braking trends of a movable workbench, a transmission main shaft, a processing tool and the target workpiece based on the numerical control machine tool for the plurality of key feeding nodes, and determining a plurality of node numerical control references;
and establishing a mapping of the plurality of key feeding nodes and the plurality of node numerical control references, and generating the datum braking sequence.
As shown in fig. 2, specifically, according to the structure of the target workpiece, the numerical control machining requirement is decomposed, machining nodes are set for the structure of the target workpiece, and a plurality of key feeding nodes are determined. For example, the critical feed nodes include point location control nodes, straight line control nodes, profile control nodes.
Further, for a plurality of key feeding nodes, a plurality of node numerical control references are configured based on relative spatial points and braking trends of a movable workbench, a transmission main shaft, a processing tool and a target workpiece of the numerical control machine tool. For example, the size of the movable table and the drive spindle is set. The set braking trend is the trend of the structure transmission direction, transmission speed and the like.
Further, a mapping of a plurality of key feeding nodes and a plurality of node numerical control references is established, each node numerical control reference is obtained according to each key feeding node, and a plurality of node numerical control references are combined to generate a basic braking sequence.
The reference braking sequence is acquired and used for correcting the reference braking sequence, so that the machining accuracy of the numerical control machine tool is improved.
The method provided by the embodiment of the disclosure further comprises the following steps:
wherein, the automatic feeding mode of the cutter comprises a continuous feeding mode, a single-step feeding mode and a pulse feeding mode;
aiming at the numerical control machining requirement, carrying out staged configuration of a numerical control machining process by taking machining difficulty, machining precision and machining efficiency as constraint conditions, wherein the staged configuration comprises at least one machining stage;
and based on the staged configuration, carrying out adaptive matching of the tool feeding mode, and determining the target tool feeding mode.
Specifically, a target tool feeding mode based on numerical control machining requirements is set, wherein the tool automatic feeding mode comprises a continuous feeding mode, a single-step feeding mode and a pulse feeding mode. The continuous feed method is to process a workpiece in a continuous manner by a tool according to a set trajectory. In continuous feeding, the feeding speed of the cutter is constant, no stop or deceleration occurs, and the method is suitable for realizing simpler processing operation. Single step feeding means that the tool stops between each step following a set trajectory. At rest, the operator can adjust or replace the tool. By means of single-step feeding, the depth of each step can be accurately controlled, and the method is suitable for realizing precision machining operation. The pulse feeding means that the cutter is fed according to a set track and with a certain pulse control signal. The method can realize high-precision and high-speed processing operation, and is suitable for the condition that the workpiece processing needs to be completed rapidly.
Further, aiming at the numerical control machining requirement, the staged configuration of the numerical control machining procedures is carried out, and each numerical control machining procedure is determined to have different machining difficulties, machining precision and machining efficiency by taking the machining difficulties, the machining precision and the machining efficiency as constraint conditions.
Further, the processing procedures which are configured in a stepwise manner are obtained, and each processing procedure is subjected to adaptive matching of a cutter feeding mode, a single cutter feeding mode or a fusion feeding mode. And determining a target cutter feeding mode according to the size and structure of the target workpiece and the numerical control machining requirement of the target workpiece, wherein the numerical control machining process adopts the same-frequency machining or the stepwise difference-frequency machining of the whole process as a constraint condition.
And the feeding mode of the target cutter based on numerical control machining requirements is set, so that numerical control machining efficiency is improved.
The method provided by the embodiment of the disclosure further comprises the following steps:
if the numerical control machining process is the whole process common-frequency machining, configuring the single-cutter feeding mode which is adapted to constraint conditions;
if the numerical control machining process is staged difference frequency machining, configuring the automatic feeding mode of the cutter stage by combining the constraint conditions, and determining a plurality of staged single-cutter feeding modes;
continuing the processing progress of the plurality of staged single-blade feeding modes, and determining the fusion feeding mode.
Specifically, if the numerical control machining process is the whole process same-frequency machining of performing numerical control machining on the target workpiece, a single-tool feeding mode which is adapted to different machining difficulties, different machining precision and different machining efficiency constraint conditions of the whole process same-frequency machining is configured. Wherein, the processing difficulty, the processing precision and the processing efficiency of each procedure of the same-frequency processing are different. And setting a single-tool feeding mode in each working procedure, wherein the single-tool feeding is to perform single processing on the target workpiece in each working procedure.
Further, if the numerical control machining process is a plurality of processes having a plurality of machining frequencies, the machining is performed in different time steps, that is, the stepwise difference frequency machining. Combining the processing difficulty, the processing precision and the processing efficiency of each procedure, setting the automatic processing of the cutter step by step, namely configuring the automatic feeding mode of the cutter, and determining a plurality of step single-cutter feeding modes. Wherein, processing of a single-blade feeding mode is set for each of a plurality of steps.
Further, a plurality of stages are connected, the complete stages are generated in a combined mode, and then the processing processes of the plurality of staged single-blade feeding modes are continued, and the fusion feeding mode of the complete stage adaptation is determined.
Wherein, based on the stepwise configuration, the adaptive matching of the cutter feeding mode is performed, so that the processing efficiency can be improved.
The method provided by the embodiment of the disclosure further comprises the following steps:
performing cutter configuration pre-detection and trial cutting analysis on the numerical control machine tool, and determining equipment loss values, wherein the equipment loss values comprise technical loss and service state loss;
and compensating the target numerical control parameter based on the equipment loss value.
Specifically, according to the size structure of a target workpiece and numerical control machining requirements, performing cutter configuration pre-detection and trial cutting analysis on a numerical control machine tool, and determining equipment loss values, wherein the equipment loss values comprise technical loss and service state loss. For example, tools include tools of monolithic, welded, clamped, and the like, tools of high speed steel, cemented carbide, diamond, ceramic, and the like. The tool configuration pre-inspection includes tool detection of changes in edge appearance, surface quality, and geometry, by direct observation or tool trial.
Further, the target numerical control parameter is a parameter for performing numerical control processing on the target workpiece by the data machine tool. And compensating the target numerical control parameter based on the equipment loss value, adjusting the technical loss and the service state loss, obtaining the target numerical control parameter again, and carrying out numerical control processing until the technical loss and the service state loss are converged.
And compensating the target numerical control parameters according to the cutter and the trial cutting loss thereof so as to correct the cutter parameters and improve the processing efficiency.
The method provided by the embodiment of the disclosure further comprises the following steps:
establishing communication connection between the numerical control monitoring module and the numerical control off-axis correction module;
the numerical control off-axis correction module comprises an off-axis analysis unit and an adaptive correction unit which are connected in front-back mode, and the reference braking sequence is embedded into the off-axis analysis unit;
and based on the numerical control off-axis correction module, performing numerical control off-axis analysis and correction compensation on the numerical control monitoring data, and outputting the numerical control tool supplementing information.
Specifically, the numerical control machine tool is provided with a numerical control monitoring module and a numerical control off-axis correction module. And establishing communication connection between the numerical control monitoring module and the numerical control off-axis correction module for data circulation. Further, the numerical control off-axis correction module comprises an off-axis analysis unit and an adaptive correction unit which are connected in front-back mode, wherein the reference braking sequence is embedded into the off-axis analysis unit and is used for performing off-axis analysis by taking the reference braking sequence as a comparison standard.
Further, based on the numerical control off-axis correction module, the numerical control monitoring data are compared with a reference braking sequence embedded in the numerical control off-axis correction module, the components of the numerical control machine tool are adjusted until the comparison difference value converges, and therefore correction compensation is completed and numerical control tool supplementing information is output.
And transferring the numerical control monitoring data stream to a numerical control off-axis correction module, performing numerical control off-axis analysis and correction compensation, and improving the efficiency of automatic correction of the cutter parameters.
The method provided by the embodiment of the disclosure further comprises the following steps:
transferring the numerical control monitoring data stream to the off-axis analysis unit, traversing the reference braking sequence, performing matching of the data return nodes, and determining a target reference sequence;
performing feature extraction on the numerical control monitoring data, and performing mapping comparison on the numerical control monitoring data and the target reference sequence to determine numerical control off-axis information, wherein a feature extraction dimension comprises a mechanical transmission feature and a numerical control feature;
and transmitting the numerical control off-axis information to the self-adaptive correction unit, performing off-axis compensation analysis, and determining the numerical control tool supplementing information.
Specifically, the numerical control monitoring data stream is transferred to an off-axis analysis unit, each data return node is accessed in sequence, and the reference braking sequence of the data return node is matched with the numerical control monitoring data to determine a target reference sequence.
Further, feature extraction is carried out on the numerical control monitoring data, mapping comparison is carried out on the target reference sequence according to the extracted features, and under the condition that the same features are compared, the difference value of the target reference sequence is determined, so that numerical control off-axis information is determined. The feature extraction dimension comprises a mechanical transmission feature and a numerical control feature. For example, the mechanical transmission features are speed features under gear transmission, etc.
Further, the numerical control off-axis information is transmitted to an adaptive correction unit, and components of the numerical control machine tool, such as a workbench, a transmission main shaft and the like, are adjusted. And (3) until the numerical control off-axis information is converged, further completing off-axis compensation analysis, and determining numerical control tool supplementing information according to the converged numerical control off-axis information.
And carrying out numerical control off-axis analysis and correction compensation on the numerical control monitoring data to improve the compensation accuracy of the numerical control monitoring data.
The method provided by the embodiment of the disclosure further comprises the following steps:
determining component adjustment degrees of freedom of the numerical control machine tool, wherein the component adjustment degrees of freedom of the nodes of different patch inserting procedures are different;
configuring an adaptive correction evaluation function by taking the member adjustment freedom degree as constraint and the numerical control off-axis information as response;
and determining the numerical control knife supplementing information meeting the numerical control off-axis information by combining the self-adaptive correction evaluation function.
Specifically, the degrees of freedom of the main components and the subdivided sub-components of the numerical control machine tool are analyzed, wherein the degrees of freedom of component adjustment of the different patch insertion process nodes are different. For example, the components of the numerically controlled machine tool move the dimensions of the table, drive spindle, machining prop, etc.
Further, with the member adjustment freedom degree as a constraint, and with the numerical control off-axis information as a response, an adaptive correction evaluation function is configured. When the degree of freedom of the component adjustment is input, the self-adaptive correction evaluation function outputs numerical control off-axis information, the degree of freedom of the component adjustment of the numerical control machine tool is determined until the numerical control off-axis information converges, and the degree of freedom of the component adjustment is adjusted.
Further, the numerical control tool supplementing information meeting the numerical control off-axis information is determined by combining the self-adaptive correction evaluation function. For example, the numerical control off-axis information is 2 cm, and the numerical control knife supplementing information is the length of cutting 2 cm once. When the numerical control off-axis information is 4 cm, the numerical control knife supplementing information is the length of 2 cm cut twice, and the cutting is 4 cm. And performing off-axis compensation analysis to improve the accuracy of obtaining the numerical control tool supplementing information.
Example two
Based on the same inventive concept as the tool parameter automatic correction method of the numerical control machine tool in the foregoing embodiment, the disclosure will be described with reference to fig. 3, and the present disclosure further provides a tool parameter automatic correction system of the numerical control machine tool, where the system includes:
a reference braking sequence obtaining module 11, wherein the reference braking sequence obtaining module 11 is used for configuring a reference braking sequence based on a numerical control machine tool based on numerical control machining requirements of a target workpiece;
the numerical control braking information obtaining module 12 is used for setting a target tool feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target tool feeding mode comprises a single-tool feeding mode and a fusion feeding mode;
the numerical control monitoring data acquisition module 13 is used for processing a workpiece based on the numerical control braking information, and controlling a monitoring sensor to synchronously monitor working conditions and transmit data back by combining the numerical control monitoring module to determine numerical control monitoring data, wherein a data back node and a key feeding node have concurrency;
the numerical control knife supplementing information obtaining module 14, wherein the numerical control knife supplementing information obtaining module 14 is used for transferring the numerical control monitoring data flow to a numerical control off-axis correction module to perform numerical control off-axis analysis and correction compensation, and determining numerical control knife supplementing information, the numerical control off-axis correction module is embedded with the reference braking sequence, and the numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value;
the cutter supplementing braking parameter obtaining module 15 is used for performing parameter control conversion on the numerical control cutter supplementing information based on a bottom layer control mechanism of the numerical control machine tool, determining cutter supplementing braking parameters and transmitting the cutter supplementing braking parameters to a central control system of the numerical control machine tool;
and the automatic machining correction management module 16 is used for carrying out automatic machining correction management on the numerical control machine tool based on the cutter supplementing braking parameters by the automatic machining correction management module 16.
Further, the system further comprises:
the key feeding node obtaining modules are used for decomposing the numerical control machining requirements and determining a plurality of key feeding nodes;
the numerical control reference acquisition modules are used for configuring relative space point positions and braking trends of the movable workbench, the transmission main shaft, the processing tool and the target workpiece based on the numerical control machine tool for the key feeding nodes, and determining a plurality of numerical control references;
and the mapping module is used for establishing the mapping of the plurality of key feeding nodes and the plurality of node numerical control references and generating the datum braking sequence.
Further, the system further comprises:
the automatic cutter feeding mode obtaining module is used for obtaining a cutter feeding mode, wherein the automatic cutter feeding mode comprises a continuous feeding mode, a single-step feeding mode and a pulse feeding mode;
the staged configuration module is used for carrying out staged configuration of a numerical control machining process by taking machining difficulty, machining precision and machining efficiency as constraint conditions according to the numerical control machining requirements, wherein the staged configuration comprises at least one machining stage;
and the target cutter feeding mode obtaining module is used for carrying out adaptive matching of the cutter feeding modes based on the staged configuration and determining the target cutter feeding mode.
Further, the system further comprises:
the single-blade feeding mode configuration module is used for configuring the single-blade feeding mode adapted to constraint conditions if the numerical control machining process is whole-process same-frequency machining;
the automatic feeding mode configuration module is used for configuring the automatic feeding modes of the cutters step by combining the constraint conditions and determining a plurality of staged single-cutter feeding modes if the numerical control machining process is staged difference frequency machining;
and the fusion feeding mode determining module is used for continuing the processing processes of the plurality of staged single-blade feeding modes and determining the fusion feeding mode.
Further, the system further comprises:
the equipment loss value obtaining module is used for carrying out cutter configuration pre-detection and trial cutting analysis on the numerical control machine tool to determine an equipment loss value, wherein the equipment loss value comprises technical loss and service state loss;
and the target numerical control parameter compensation module is used for compensating the target numerical control parameter based on the equipment loss value.
Further, the system further comprises:
the communication connection module is used for establishing communication connection between the numerical control monitoring module and the numerical control off-axis correction module;
the numerical control off-axis correction module obtaining module is used for embedding the reference braking sequence into the off-axis analysis unit, wherein the numerical control off-axis correction module comprises the off-axis analysis unit and the self-adaptive correction unit which are connected in front-back mode;
the numerical control knife supplementing information obtaining module is used for carrying out numerical control off-axis analysis and correction compensation on the numerical control monitoring data based on the numerical control off-axis correction module and outputting the numerical control knife supplementing information.
Further, the system further comprises:
the target reference sequence obtaining module is used for transferring the numerical control monitoring data stream to the off-axis analysis unit, traversing the reference braking sequence, carrying out the matching of the data return nodes and determining a target reference sequence;
the numerical control off-axis information obtaining module is used for carrying out feature extraction on the numerical control monitoring data, carrying out mapping comparison on the numerical control off-axis information obtaining module and the target reference sequence, and determining numerical control off-axis information, wherein the feature extraction dimension comprises a mechanical transmission feature and a numerical control feature;
the off-axis compensation analysis module is used for transmitting the numerical control off-axis information to the self-adaptive correction unit to perform off-axis compensation analysis and determine the numerical control knife supplementing information.
Further, the system further comprises:
the freedom degree adjusting module is used for determining the component adjusting freedom degree of the numerical control machine tool, wherein the component adjusting freedom degrees of the nodes of different patch inserting procedures are different;
the self-adaptive correction evaluation function configuration module is used for configuring a self-adaptive correction evaluation function by taking the member adjustment freedom degree as a constraint and the numerical control off-axis information as a response;
the self-adaptive correction evaluation function processing module is used for combining the self-adaptive correction evaluation function to determine the numerical control tool supplementing information meeting the numerical control off-axis information.
The specific example of the tool parameter automatic correction method for the numerical control machine tool in the first embodiment is also applicable to the tool parameter automatic correction system for the numerical control machine tool in the present embodiment, and the detailed description of the tool parameter automatic correction method for the numerical control machine tool in the present embodiment can be clearly known to those skilled in the art, so the detailed description thereof will not be repeated here for the sake of brevity. The device disclosed in the embodiment corresponds to the method disclosed in the embodiment, so that the description is simpler, and the relevant points refer to the description of the method.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel or sequentially or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.
The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (7)
1. The automatic correction method for the cutter parameters of the numerical control machine tool is characterized by comprising the following steps:
configuring a reference braking sequence based on the numerical control machine tool based on numerical control machining requirements of a target workpiece;
setting a target tool feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target tool feeding mode comprises a single-tool feeding mode and a fusion feeding mode, and the target numerical control parameter is a feeding direction, a feeding speed, a main shaft rotating speed and a cutting depth;
based on the numerical control braking information, processing a workpiece, and combining a numerical control monitoring module, controlling a monitoring sensor to synchronously monitor working conditions and transmit data back, and determining numerical control monitoring data, wherein a data back node and a key feeding node have concurrency;
the numerical control monitoring data flow is transferred to a numerical control off-axis correction module, numerical control off-axis analysis and correction compensation are carried out, numerical control knife supplementing information is determined, the numerical control off-axis correction module is embedded with the reference braking sequence, the numerical control knife supplementing information comprises knife supplementing cutting-in nodes, feeding compensation directions and feeding compensation values, and the numerical control off-axis analysis refers to comparing the reference braking sequence with numerical control monitoring data when the data return nodes;
based on a bottom layer control mechanism of the numerical control machine tool, performing parameter control conversion on the numerical control tool supplementing information, determining tool supplementing braking parameters and transmitting the parameters to a central control system of the numerical control machine tool;
based on the cutter supplementing braking parameters, carrying out automatic machining correction management on the numerical control machine tool;
wherein the configuration is based on a reference braking sequence of the numerically controlled machine tool, the method comprising:
decomposing the numerical control machining requirement, and determining a plurality of key feeding nodes;
configuring relative space point positions and braking trends of a movable workbench, a transmission main shaft, a processing tool and the target workpiece based on the numerical control machine tool for the plurality of key feeding nodes, and determining a plurality of node numerical control references;
establishing a mapping of the plurality of key feeding nodes and the plurality of node numerical control references, and generating the datum braking sequence;
the setting is based on the target cutter feeding mode of the numerical control machining requirement, and the method comprises the following steps:
wherein, the automatic feeding mode of the cutter comprises a continuous feeding mode, a single-step feeding mode and a pulse feeding mode;
aiming at the numerical control machining requirement, carrying out staged configuration of a numerical control machining process by taking machining difficulty, machining precision and machining efficiency as constraint conditions, wherein the staged configuration comprises at least one machining stage;
and based on the staged configuration, carrying out adaptive matching of the tool feeding mode, and determining the target tool feeding mode.
2. The method of claim 1, wherein the adaptive matching of the tool feed pattern is performed based on the staged configuration, the method comprising:
if the numerical control machining process is the whole process common-frequency machining, configuring the single-cutter feeding mode which is adapted to constraint conditions;
if the numerical control machining process is staged difference frequency machining, configuring the automatic feeding mode of the cutter stage by combining the constraint conditions, and determining a plurality of staged single-cutter feeding modes;
continuing the processing progress of the plurality of staged single-blade feeding modes, and determining the fusion feeding mode.
3. The method of claim 2, characterized in that the method comprises:
performing cutter configuration pre-detection and trial cutting analysis on the numerical control machine tool, and determining equipment loss values, wherein the equipment loss values comprise technical loss and service state loss;
and compensating the target numerical control parameter based on the equipment loss value.
4. The method of claim 1, wherein the digitally controlled monitoring data stream is passed to a digitally controlled off-axis correction module for digitally controlled off-axis analysis and correction compensation, the method comprising:
establishing communication connection between the numerical control monitoring module and the numerical control off-axis correction module;
the numerical control off-axis correction module comprises an off-axis analysis unit and an adaptive correction unit which are connected in front-back mode, and the reference braking sequence is embedded into the off-axis analysis unit;
and based on the numerical control off-axis correction module, performing numerical control off-axis analysis and correction compensation on the numerical control monitoring data, and outputting the numerical control tool supplementing information.
5. The method of claim 4, wherein the digitally controlled monitoring data is digitally controlled off-axis analyzed and correction compensated, the method comprising:
transferring the numerical control monitoring data stream to the off-axis analysis unit, traversing the reference braking sequence, performing matching of the data return nodes, and determining a target reference sequence;
performing feature extraction on the numerical control monitoring data, and performing mapping comparison on the numerical control monitoring data and the target reference sequence to determine numerical control off-axis information, wherein a feature extraction dimension comprises a mechanical transmission feature and a numerical control feature;
and transmitting the numerical control off-axis information to the self-adaptive correction unit, performing off-axis compensation analysis, and determining the numerical control tool supplementing information.
6. The method of claim 5, wherein the performing an off-axis compensation analysis comprises:
determining component adjustment degrees of freedom of the numerical control machine tool, wherein the component adjustment degrees of freedom of the nodes of different patch inserting procedures are different;
configuring an adaptive correction evaluation function by taking the member adjustment freedom degree as constraint and the numerical control off-axis information as response;
and determining the numerical control knife supplementing information meeting the numerical control off-axis information by combining the self-adaptive correction evaluation function.
7. A tool parameter automatic correction system for a numerical control machine tool, characterized by being used for implementing the tool parameter automatic correction method for a numerical control machine tool according to any one of claims 1 to 6, the system comprising:
the reference braking sequence obtaining module is used for configuring a reference braking sequence based on the numerical control machine tool based on numerical control machining requirements of a target workpiece;
the numerical control braking information acquisition module is used for setting a target cutter feeding mode and a target numerical control parameter based on the numerical control machining requirement as numerical control braking information, wherein the target cutter feeding mode comprises a single-cutter feeding mode and a fusion feeding mode, and the target numerical control parameter is a feeding direction, a feeding speed, a main shaft rotating speed and a cutting depth;
the numerical control monitoring data acquisition module is used for processing the workpiece based on the numerical control braking information, controlling the monitoring sensor to synchronously monitor working conditions and transmit data back by combining the numerical control monitoring module, and determining numerical control monitoring data, wherein a data back node has synchronism with a key feeding node;
the numerical control knife supplementing information obtaining module is used for transferring the numerical control monitoring data flow to the numerical control off-axis correction module, carrying out numerical control off-axis analysis and correction compensation, and determining numerical control knife supplementing information, wherein the numerical control off-axis correction module is embedded with the reference braking sequence, the numerical control knife supplementing information comprises a knife supplementing cutting-in node, a feeding compensation direction and a feeding compensation value, and the numerical control off-axis analysis refers to comparing the reference braking sequence with numerical control monitoring data when the data return node;
the cutter supplementing braking parameter obtaining module is used for carrying out parameter control conversion on the numerical control cutter supplementing information based on a bottom layer control mechanism of the numerical control machine tool, determining cutter supplementing braking parameters and transmitting the cutter supplementing braking parameters to a central control system of the numerical control machine tool;
and the automatic machining correction management module is used for carrying out automatic machining correction management on the numerical control machine tool based on the cutter supplementing braking parameters.
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