CN111552233A - Ball cutter compensation method and device applied to stone mill curved surface machining, terminal and computer readable storage medium - Google Patents
Ball cutter compensation method and device applied to stone mill curved surface machining, terminal and computer readable storage medium Download PDFInfo
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- CN111552233A CN111552233A CN201910260920.XA CN201910260920A CN111552233A CN 111552233 A CN111552233 A CN 111552233A CN 201910260920 A CN201910260920 A CN 201910260920A CN 111552233 A CN111552233 A CN 111552233A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/404—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 control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35408—Calculate new position data from actual data to compensate for contour error
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Abstract
The invention discloses a ball cutter compensation method, a ball cutter compensation device, a ball cutter compensation terminal and a computer readable storage medium, wherein the ball cutter compensation method is applied to the processing of a stone mill curved surface and comprises the following steps: acquiring a target central point, a first reference point and a second reference point, and establishing a reference plane passing through the target central point, the first reference point and the second reference point, wherein the target central point is the central position of the ball cutter when the ball cutter passes through a processing point to be compensated, the first reference point and the second reference point are the central positions of the ball cutter closest to the target central point on adjacent processing paths, and the adjacent processing paths are adjacent to the processing path where the target central point is located; determining the normal vector of the reference plane, the intersection point of the normal vector and the cutting surface of the ball cutter, and obtaining the path travel between the intersection point and the machining starting point; and determining a compensation value of the ball cutter according to the path travel and the normal vector. The sphere cutter compensation method, the sphere cutter compensation device, the sphere cutter compensation terminal and the computer readable storage medium realize synchronous compensation of the cutter, approximately eliminate the abrasion error of the cutter, ensure the processing precision of the curved surface, prolong the service life of the cutter and reduce the cost of the cutter.
Description
Technical Field
The invention belongs to the technical field of numerical control machining, and particularly relates to a ball cutter compensation method, a ball cutter compensation device, a ball cutter compensation terminal and a computer-readable storage medium, wherein the ball cutter compensation method, the ball cutter compensation device, the ball cutter compensation terminal and the computer-readable storage medium are applied to stone mill curved surface machining.
Background
The curved surface processing of graphite materials is generally realized by means of a ball cutter. In the processing process, the ball cutter is in point contact with the surface of the graphite material, and the material is cut and removed through the high-speed rotation of the cutting edge. As the machining is carried out, the ball cutter is abraded, and the machining precision of the curved surface is negatively affected.
At present, the compensation research on the ball cutter in the graphite curved surface machining is not sufficient, and a mode of replacing the cutter is usually adopted, so that the cutter is kept in an ideal surface state, and the machining precision is ensured. The cutter is changed and wastes time and energy, needs recalibration to adjust after changing, and the cutting edge position before and after the cutter changing has the positioning deviation that can not dispel, makes the curved surface of treating to process take place discontinuously, and the machining precision is difficult to guarantee. Meanwhile, the ball cutter is expensive, and the machining cost is high due to frequent replacement of the cutter.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a spherical cutter compensation method, a spherical cutter compensation device, a spherical cutter compensation terminal and a computer-readable storage medium, which are applied to the processing of a stone mill curved surface.
The purpose of the invention is realized by the following technical scheme:
a ball cutter compensation method applied to stone mill curved surface machining comprises the following steps:
acquiring a target central point, a first reference point and a second reference point, and establishing a reference plane passing through the target central point, the target central point being the central position of the ball cutter when passing through a processing point to be compensated, the first reference point and the second reference point being the central positions of the ball cutters closest to the target central point on adjacent processing paths, and the adjacent processing paths being adjacent to the processing path where the target central point is located;
determining a normal vector of the reference plane, an intersection point of the normal vector and the cutting surface of the ball cutter, and calculating a path travel between the intersection point and a machining starting point;
and determining a compensation value of the ball cutter according to the path travel and the normal vector.
As an improvement of the above technical solution, "determining a compensation value of the ball cutter according to the path travel and the normal vector" includes:
determining a machine tool feed shaft required to be compensated and acquiring a total processing path of the machine tool feed shaft in one-time processing;
acquiring a total wear value of the ball cutter passing through the total machining path and the minimum feed quantity of the machine tool feed shaft, and calculating the ratio of the total wear value to the minimum feed quantity to determine the compensation response times;
and calculating the ratio of the total processing path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to a natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
As a further improvement of the above technical solution, "determining a machine tool feed axis to be compensated" includes:
calculating the included angle value between the normal vector and the vertical axis;
if the included angle value is not larger than the first threshold value, the feed axis of the machine tool needing to be compensated is the Z axis;
if the included angle value is larger than the first threshold value and not larger than the second threshold value, the machine tool feed axes needing to be compensated are an X axis, a Y axis and a Z axis;
if the included angle value is larger than a third threshold value, the machine tool feed axis needing to be compensated is an X axis and a Y axis;
the X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
As a further improvement of the above technical solution, the first threshold is 30 °.
As a further improvement of the above technical solution, the second threshold is 60 °.
The utility model provides a be applied to ball sword compensation device of stone mill curved surface processing, includes:
the plane establishing module is used for acquiring a target central point, a first reference point and a second reference point and establishing a reference plane passing through the target central point, the target central point is the central position of the ball cutter when the ball cutter passes through a processing point to be compensated, the first reference point and the second reference point are the central positions of the ball cutters closest to the target central point on adjacent processing paths, and the adjacent processing paths are kept adjacent to the processing path where the target central point is located;
the compensation fixed point module is used for determining a normal vector of the reference plane, an intersection point of the normal vector and the cutting surface of the ball cutter, and calculating a path travel between the intersection point and a machining starting point;
and the numerical value determining module is used for determining a compensation value of the ball cutter according to the path travel and the normal vector.
As an improvement of the above technical solution, the numerical value determination module includes:
the compensation shaft determining submodule is used for determining a machine tool feed shaft required to be compensated;
the path acquisition submodule is used for acquiring a total processing path of the machine tool feed shaft in one-time processing;
the response determining submodule acquires a total wear value of the ball cutter after passing through the total machining path and the minimum feed quantity of the machine tool feed shaft which are obtained through statistics, and calculates the ratio of the total wear value to the minimum feed quantity to determine the compensation response times;
and the compensation calculation submodule is used for calculating the ratio of the total machining path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to the natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
As a further improvement of the above technical solution, the compensation axis determining submodule includes:
the included angle calculating subunit is used for calculating the included angle value between the normal vector and the vertical axis;
and the judgment and determination subunit is used for determining the machine tool feed shaft required to be compensated according to the included angle value: if the included angle value is not larger than the first threshold value, the feed axis of the machine tool needing to be compensated is the Z axis; if the included angle value is larger than the first threshold value and not larger than the second threshold value, the machine tool feed axes needing to be compensated are an X axis, a Y axis and a Z axis; if the included angle value is larger than a third threshold value, the machine tool feed axis needing to be compensated is an X axis and a Y axis; the X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
A terminal comprising a memory for storing a computer program and a processor executing the computer program to cause the terminal to implement any of the above described method of bulb cutter compensation for stonewashing curved surfaces.
A computer-readable storage medium storing the computer program executed by the terminal.
The invention has the beneficial effects that:
the method comprises the steps of obtaining a target center point, a first reference point and a second reference point, establishing a reference plane passing through the target center point, the first reference point and the second reference point, further determining a normal vector of the reference plane, an intersection point of the normal vector and a cutting surface of the ball cutter, calculating a path stroke between the intersection point and a machining starting point, finally determining a compensation value of the ball cutter according to the path stroke and the normal vector, realizing quick calculation of a cutter compensation value, realizing synchronous compensation of the cutter based on machining equipment characteristics, approximately eliminating cutter abrasion errors, ensuring the machining precision of a curved surface, prolonging the service life of the cutter and reducing the cutter cost.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a ball cutter for machining a curved surface of a graphite product;
FIG. 2 is a schematic flow chart of a ball cutter compensation method applied to curved surface machining of a stone mill in embodiment 1 of the present invention;
FIG. 3 is a schematic flowchart of step C of the ball-cutter compensation method applied to the curved surface machining of the stone mill in embodiment 1 of the present invention;
FIG. 4 is a flowchart illustrating a step C1 of the ball cutter compensation method applied to the curved surface grinding process in the embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a ball cutter compensation device applied to curved surface processing of a stone mill in embodiment 2 of the present invention;
fig. 6 is a schematic structural diagram of a numerical determination module of the ball cutter compensation device applied to the curved surface processing of the stone mill in embodiment 2 of the present invention;
fig. 7 is a schematic structural diagram of a compensation axis determining submodule of the ball cutter compensation device applied to the curved surface processing of the stone mill in embodiment 2 of the present invention;
fig. 8 is a schematic structural diagram of a terminal provided in embodiment 3 of the present invention.
Description of the main element symbols:
the device comprises a 110-plane establishing module, a 120-compensation fixed point module, a 130-numerical value determining module, a 131-compensation axis determining submodule, a 131 a-included angle obtaining subunit, a 131 b-judgment determining subunit, a 132-path obtaining submodule, a 133-response determining submodule, a 134-compensation calculating submodule, a terminal, a 210-memory, a 220-processor, a 230-input unit and a 240-display unit.
Detailed Description
In order to facilitate understanding of the present invention, a method for compensating a ball cutter for a stone curved surface machining will be described more fully with reference to the accompanying drawings. The preferred embodiment of the ball cutter compensation method applied to the stone mill curved surface machining is given in the attached drawings. However, the method of bulb compensation applied to the stonewashed curve machining can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the method for compensation of a spherical cutter used in the machining of a stone-ground curved surface.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the reamer compensation method applied to the stone milling of curved surfaces is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1-2, the present embodiment provides a method for compensating a ball cutter for machining a curved surface of a stone mill, including the following steps:
step A: and acquiring a target central point, a first reference point and a second reference point, and establishing a reference plane passing through the target central point, the first reference point and the second reference point. The target center point is the center position of the ball cutter when the ball cutter passes through a machining point to be compensated, the first reference point and the second reference point are the center positions of the ball cutters closest to the target center point on adjacent machining paths, and the adjacent machining paths are adjacent to the machining path where the target center point is located. The ball cutter center position is a ball center position of a spherical blade of the ball cutter.
When the graphite material is subjected to curved surface machining, the ball cutter moves from one side of the graphite material to the other side along one machining path, and then returns to the front side along another adjacent machining path, so that a plurality of adjacent machining paths are formed in a reciprocating manner.
It will be appreciated that the target center point is the machining point that currently requires compensation. The target center point and the first reference point are positioned on adjacent and different processing paths, and the target center point and the second reference point are also positioned on adjacent and different processing paths; the first reference point and the second reference point may be located on the same machining path or may be located on different machining paths on two sides of the machining path where the target center point is located.
It will be appreciated that there is a minimum step distance for the machine tool feed axes based on the minimum feed of the machine tool feed axes, making each machining point a discrete point. The target center point, the first reference point and the second reference point are discrete points based on the step pitch of the machine tool feed shaft, and the first reference point and the second reference point are located around the target center point and are closest to the target center point, so that the reference plane tends to be minimum.
And B: and determining a normal vector of the reference plane, an intersection point of the normal vector and the cutting surface of the ball cutter, and calculating a path travel between the intersection point and a machining starting point.
It will be appreciated that the normal vector is perpendicular to the reference plane. And the intersection point of the normal vector and the cutting spherical surface of the ball cutter is regarded as the cutting point of the ball cutter on the product, namely the intersection point is positioned on the surface of the product. At this cutting point, the ball cutter remains tangent to the product. Because the processing starting point is also positioned on the surface of the product, the path stroke can be quickly acquired according to the curved surface shape of the product.
And C: and determining a compensation value of the ball cutter according to the path travel and the normal vector. The ball cutter can be considered to be synchronously linearly worn along with the increase of the stroke in the cutting process. Based on the path stroke, the abrasion loss of the ball cutter can be obtained. Furthermore, the wear amount along the direction of the feed axis of each machine tool and the processing state can be obtained according to the normal vector, the compensation amount can be calculated according to the wear amount, and each compensation amount is correspondingly compensated into the current feed amount of the feed axis of each machine tool, thereby realizing the compensation purpose.
Referring to fig. 3, step C exemplarily includes the following steps:
step C1: determining a machine tool feed shaft required to be compensated and acquiring a total processing path of the machine tool feed shaft in one processing. The total processing path is the sum of the lengths of the paths through which the feed shaft of the machine tool passes after the curved surface of a product is processed.
Step C2: and acquiring a total wear value of the ball cutter passing through the total machining path and the minimum feed quantity of the machine tool feed shaft, and calculating the ratio of the total wear value to the minimum feed quantity to determine the compensation response times. The minimum feeding amount of the machine tool feeding shaft depends on the machining precision of the machine tool and belongs to the minimum unit of each feeding of the machine tool feeding shaft.
Step C3: and calculating the ratio of the total processing path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to a natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
It will be appreciated that the feed compensation of the machine tool feed axis can be performed if and only if the amount of wear reaches or exceeds a minimum feed amount, based on the limit of the minimum feed amount of the machine tool feed axis. If the ratio of the path travel to the compensation step is a natural number or approaches a natural number, which indicates that the wear of the ball cutter has reached a minimum feed, the compensation is performed by feeding the feed shaft of the machine tool by a minimum feed. Otherwise, the abrasion quantity of the ball cutter is not met the threshold requirement of compensation, and the machine tool does not perform feed compensation.
Referring to fig. 4, exemplary machine tool feed axes for compensation are determined by:
step C11: and calculating the included angle value of the normal vector and the vertical axis. It can be understood that the included angle ranges from 0 to 90 °.
Step C12: the judgment action is executed as follows:
if the included angle value is not greater than the first threshold value, the fact that the currently processed curved surface of the ball cutter tends to a gentle and flat area extending horizontally and smoothly is indicated, feeding along the vertical direction is mainly executed, and the feeding axis of the machine tool needing compensation is the Z axis;
if the included angle value is larger than a third threshold value, the fact that the currently processed curved surface of the ball cutter is steeper to form a steep area is indicated, feeding along the horizontal direction is mainly executed, and the feeding axes of the machine tool needing compensation are an X axis and a Y axis;
if the included angle value is larger than the first threshold value and not larger than the second threshold value, the fact that the curved surface machined by the ball cutter is located in a transition area between the gentle area and the steep area is indicated, the inclined mixed feeding is mainly executed, and the feeding axes of the machine tool needing compensation are the X axis, the Y axis and the Z axis.
The X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
The values of the first threshold and the second threshold are obtained according to statistical analysis. Exemplarily, the first threshold is 30 °. Exemplarily, the second threshold is 60 °.
Example 2
Referring to fig. 5, the present embodiment provides a ball cutter compensation device for processing a curved surface of a stone mill, including:
the plane establishing module 110 is configured to obtain a target center point, a first reference point, and a second reference point, and establish a reference plane passing through the target center point, the target center point being a center position of the ball cutter when passing through a machining point to be compensated, the first reference point and the second reference point being center positions of the ball cutter closest to the target center point on adjacent machining paths, and the adjacent machining paths being adjacent to the machining path where the target center point is located;
the compensation fixed point module 120 is configured to determine a normal vector of the reference plane, an intersection point between the normal vector and the cutting surface of the ball cutter, and obtain a path travel between the intersection point and a processing start point;
a numerical value determining module 130, configured to determine a compensation value of the ball cutter according to the path travel and the normal vector.
Referring to fig. 6, the value determining module 130 exemplarily includes:
a compensation axis determining submodule 131 for determining a machine tool feed axis required to be compensated;
a path obtaining submodule 132 for obtaining a total processing path of the machine tool feed shaft in one processing;
the response determining submodule 133 obtains a total wear value of the ball cutter after passing through the total machining path and a minimum feed amount of the machine tool feed shaft, and calculates a ratio of the total wear value to the minimum feed amount to determine a compensation response time;
and the compensation calculating submodule 134 is used for calculating the ratio of the total machining path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to the natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
Referring to fig. 7, exemplarily, the compensation axis determining sub-module 131 includes:
an included angle calculating subunit 131a, configured to calculate an included angle value between the normal vector and the vertical axis;
and the judgment and determination subunit 131b is configured to determine, according to the included angle value, a machine tool feed axis to be compensated:
if the included angle value is not larger than the first threshold value, the feed axis of the machine tool needing to be compensated is the Z axis; if the included angle value is larger than the first threshold value and not larger than the second threshold value, the machine tool feed axes needing to be compensated are an X axis, a Y axis and a Z axis; if the included angle value is larger than a third threshold value, the machine tool feed axis needing to be compensated is an X axis and a Y axis; the X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
Example 3
Referring to fig. 8, the present embodiment provides a terminal 200, where the terminal 200 includes a memory 210 and a processor 220, the memory 210 is used for storing a computer program, and the processor 220 executes the computer program to enable the terminal 200 to implement the above-mentioned ball cutter compensation method applied to the curved surface grinding process.
The terminal 200 includes a terminal device (such as a computer, a server, etc.) without mobile communication capability, and also includes a mobile terminal (such as a smart phone, a tablet computer, a vehicle-mounted computer, a smart wearable device, etc.).
The memory 210 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system, application programs (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like; the storage data area may store data (such as audio data, backup files, etc.) created according to the use of the terminal 200, and the like. Further, the memory 210 may include high speed random access memory, and may also include non-volatile memory (e.g., at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device).
Preferably, the terminal 200 further includes an input unit 230 and a display unit 240. The input unit 230 is configured to receive various instructions or parameters (including a preset scrolling manner, a preset time interval, and a preset scrolling number) input by a user, and includes a mouse, a keyboard, a touch panel, and other input devices. The display unit 240 is used to display various output information (including a web page, a parameter configuration interface, etc.) of the terminal 200, including a display panel.
A computer-readable storage medium storing the computer program executed by a terminal is provided herein together.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative and, for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s).
It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.
It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention or a part of the technical solution that contributes to the prior art in essence can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The ball cutter compensation method applied to stone mill curved surface machining is characterized by comprising the following steps of:
acquiring a target central point, a first reference point and a second reference point, and establishing a reference plane passing through the target central point, the target central point being the central position of the ball cutter when passing through a processing point to be compensated, the first reference point and the second reference point being the central positions of the ball cutters closest to the target central point on adjacent processing paths, and the adjacent processing paths being adjacent to the processing path where the target central point is located;
determining a normal vector of the reference plane, an intersection point of the normal vector and the cutting surface of the ball cutter, and calculating a path travel between the intersection point and a machining starting point;
and determining a compensation value of the ball cutter according to the path travel and the normal vector.
2. The method as claimed in claim 1, wherein determining the compensation value of the ball cutter according to the path travel and the normal vector comprises:
determining a machine tool feed shaft required to be compensated and acquiring a total processing path of the machine tool feed shaft in one-time processing;
acquiring a total wear value of the ball cutter passing through the total machining path and the minimum feed quantity of the machine tool feed shaft, and calculating the ratio of the total wear value to the minimum feed quantity to determine the compensation response times;
and calculating the ratio of the total processing path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to a natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
3. The method for compensating the spherical cutter applied to the curved surface processing of the stone mill according to claim 2, wherein the step of determining the feed axis of the machine tool needing compensation comprises the following steps:
calculating the included angle value between the normal vector and the vertical axis;
if the included angle value is not larger than the first threshold value, the feed axis of the machine tool needing to be compensated is the Z axis;
if the included angle value is larger than the first threshold value and not larger than the second threshold value, the machine tool feed axes needing to be compensated are an X axis, a Y axis and a Z axis;
if the included angle value is larger than a third threshold value, the machine tool feed axis needing to be compensated is an X axis and a Y axis;
the X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
4. The method of claim 3, wherein the first threshold is 30 °.
5. The method of claim 3, wherein the second threshold is 60 °.
6. The utility model provides a be applied to ball sword compensation device of stone mill curved surface processing which characterized in that includes:
the plane establishing module is used for acquiring a target central point, a first reference point and a second reference point and establishing a reference plane passing through the target central point, the target central point is the central position of the ball cutter when the ball cutter passes through a processing point to be compensated, the first reference point and the second reference point are the central positions of the ball cutters closest to the target central point on adjacent processing paths, and the adjacent processing paths are kept adjacent to the processing path where the target central point is located;
the compensation fixed point module is used for determining a normal vector of the reference plane, an intersection point of the normal vector and the cutting surface of the ball cutter, and calculating a path travel between the intersection point and a machining starting point;
and the numerical value determining module is used for determining a compensation value of the ball cutter according to the path travel and the normal vector.
7. The ball cutter compensation device applied to stone curved surface machining according to claim 6, wherein the numerical value determination module comprises:
the compensation shaft determining submodule is used for determining a machine tool feed shaft required to be compensated;
the path acquisition submodule is used for acquiring a total processing path of the machine tool feed shaft in one-time processing;
the response determining submodule acquires a total wear value of the ball cutter after passing through the total machining path and the minimum feed quantity of the machine tool feed shaft which are obtained through statistics, and calculates the ratio of the total wear value to the minimum feed quantity to determine the compensation response times;
and the compensation calculation submodule is used for calculating the ratio of the total machining path to the compensation response times to determine a compensation step pitch, judging whether the ratio of the path travel to the compensation step pitch is a natural number or approaches to the natural number, if so, taking the minimum feed amount as a compensation value of the machine tool feed shaft, and if not, not compensating.
8. The sphere tool compensation device for stone curved surface machining according to claim 7, wherein the compensation axis determination submodule includes:
the included angle calculating subunit is used for calculating the included angle value between the normal vector and the vertical axis;
and the judgment and determination subunit is used for determining the machine tool feed shaft required to be compensated according to the included angle value: if the included angle value is not larger than the first threshold value, the feed axis of the machine tool needing to be compensated is the Z axis; if the included angle value is larger than the first threshold value and not larger than the second threshold value, the machine tool feed axes needing to be compensated are an X axis, a Y axis and a Z axis; if the included angle value is larger than a third threshold value, the machine tool feed axis needing to be compensated is an X axis and a Y axis; the X axis and the Y axis are mutually vertical horizontal feeding axes, and the Z axis is a vertical feeding axis.
9. A terminal, comprising a memory for storing a computer program and a processor for executing the computer program to enable the terminal to implement the method for compensating a spherical cutter for a stone curved surface machining according to any one of claims 1 to 5.
10. A computer-readable storage medium, characterized in that it stores the computer program executed by the terminal of claim 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486094A (en) * | 2020-11-30 | 2021-03-12 | 哈尔滨工业大学（威海） | Cutter optimization and processing track generation method for complex curved surface side milling |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438521A (en) * | 1994-03-10 | 1995-08-01 | Finn-Power International, Inc. | Apparatus and method for measuring and compensating the length of a punch tool |
| JPH1020911A (en) * | 1996-07-02 | 1998-01-23 | Mitsubishi Electric Corp | Tool length correcting method for numerical controller, work center position detecting method, and tool wear degree estimating method and numerical controller |
| CN1835822A (en) * | 2003-08-14 | 2006-09-20 | P&L两合有限公司 | Method for correcting tool erosion |
| CN102914995A (en) * | 2012-07-10 | 2013-02-06 | 深圳市朗玛数控设备有限公司 | Tool wear automatic compensation method and system, and corresponding numerically-controlled machine tool machining equipment |
| CN103737451A (en) * | 2014-01-08 | 2014-04-23 | 中国科学院长春光学精密机械与物理研究所 | Grinding wheel home position automation shaping and milling processing method of off-axis aspheric reflector |
| CN106217129A (en) * | 2016-07-29 | 2016-12-14 | 芜湖瑞精机床有限责任公司 | A kind of plate wear automatic-compensation method of forging a knife of contact Tool Broken Detect system |
| CN106774153A (en) * | 2016-12-29 | 2017-05-31 | 科德数控股份有限公司 | A kind of profile tolerance compensation method of S-shaped rose cutter |
| CN108287522A (en) * | 2017-12-22 | 2018-07-17 | 武汉益模壹兴佰科技有限公司 | It is a kind of based on multi-platform automation On-machine Test method |
| CN109093447A (en) * | 2018-09-21 | 2018-12-28 | 北京航空航天大学 | A kind of knife rail design method based on cutter uniform wear |
-
2019
- 2019-04-02 CN CN201910260920.XA patent/CN111552233B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438521A (en) * | 1994-03-10 | 1995-08-01 | Finn-Power International, Inc. | Apparatus and method for measuring and compensating the length of a punch tool |
| JPH1020911A (en) * | 1996-07-02 | 1998-01-23 | Mitsubishi Electric Corp | Tool length correcting method for numerical controller, work center position detecting method, and tool wear degree estimating method and numerical controller |
| CN1835822A (en) * | 2003-08-14 | 2006-09-20 | P&L两合有限公司 | Method for correcting tool erosion |
| CN102914995A (en) * | 2012-07-10 | 2013-02-06 | 深圳市朗玛数控设备有限公司 | Tool wear automatic compensation method and system, and corresponding numerically-controlled machine tool machining equipment |
| CN103737451A (en) * | 2014-01-08 | 2014-04-23 | 中国科学院长春光学精密机械与物理研究所 | Grinding wheel home position automation shaping and milling processing method of off-axis aspheric reflector |
| CN106217129A (en) * | 2016-07-29 | 2016-12-14 | 芜湖瑞精机床有限责任公司 | A kind of plate wear automatic-compensation method of forging a knife of contact Tool Broken Detect system |
| CN106774153A (en) * | 2016-12-29 | 2017-05-31 | 科德数控股份有限公司 | A kind of profile tolerance compensation method of S-shaped rose cutter |
| CN108287522A (en) * | 2017-12-22 | 2018-07-17 | 武汉益模壹兴佰科技有限公司 | It is a kind of based on multi-platform automation On-machine Test method |
| CN109093447A (en) * | 2018-09-21 | 2018-12-28 | 北京航空航天大学 | A kind of knife rail design method based on cutter uniform wear |
Non-Patent Citations (3)
| Title |
|---|
| 姜艳: "自由曲面五轴联动加工中的球刀补偿算法研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 胡春林等: "球头立铣刀端刃四轴CNC重磨时砂轮磨损加工误差分析", 《工具技术》 * |
| 陈侃: "基于多模型决策融合的刀具磨损状态监测系统关键技术研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112486094A (en) * | 2020-11-30 | 2021-03-12 | 哈尔滨工业大学（威海） | Cutter optimization and processing track generation method for complex curved surface side milling |
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