CN113732817B - Method and device for calibrating A axis of numerical control machine tool, computer equipment and storage medium - Google Patents
Method and device for calibrating A axis of numerical control machine tool, computer equipment and storage medium Download PDFInfo
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- CN113732817B CN113732817B CN202010474648.8A CN202010474648A CN113732817B CN 113732817 B CN113732817 B CN 113732817B CN 202010474648 A CN202010474648 A CN 202010474648A CN 113732817 B CN113732817 B CN 113732817B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
- B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
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Abstract
The embodiment of the invention belongs to the technical field of numerical control machining centers, and relates to a method for calibrating an A axis of a numerical control machine, which comprises the following steps: calibrating the rotation radius of the shaft A by measuring and comparing the distance from the tool nose of the tool to the first vertical plate; the A-axis is zero calibrated by measuring and comparing the distance of the adjacent edges of the third and fourth boxes cut in the vertical direction of the second upright plate. The embodiment of the invention also provides a numerical control machining device, computer equipment and a storage medium. According to the embodiment of the invention, the position between the A shaft and the plate is changed by rotating the A shaft, the set rotating radius of the A shaft is calibrated and the zero position is calibrated by measuring the distances of the plates at different positions or measuring the distances of the plates at different positions after cutting, so that the cutter is successfully set, the condition that the required compensation amount is estimated by observing the relative position of the cutter point and the alignment point of the cutter by naked eyes is avoided, and the calibration operation in the whole process is simple, the method is efficient and novel, and the method has high accuracy.
Description
Technical Field
The embodiment of the invention relates to the technical field of numerical control machining centers, in particular to a method and a device for calibrating an A axis of a numerical control machine tool, computer equipment and a storage medium.
Background
A five-axis numerical control machining center is provided with five linkage shafts which are three linear shafts of X, Y and Z and two rotating shafts of C and A, wherein the shaft A rotates around the axis X. In the machining process of adopting a five-axis numerical control machining center, because the A axis may cause the tool tip point of the tool to generate additional motion during the rotation motion, the control point of the numerical control system cannot coincide with the tool tip point, and at the moment, the control system needs to compensate the A axis to ensure that the tool tip point moves according to the established track of the instruction.
In order to ensure that the tool nose point moves according to a track set by an instruction, the A axis needs to meet the coincidence of the tool nose point and a control point under the following two conditions: one is when the A axis is in the initial position, namely the calibration of the zero position of the A axis; the other is the calibration of the A-axis during the revolution motion, namely the rotating radius of the A-axis.
In the existing tool setting method applied to a five-axis numerical control machining center, the required compensation amount is estimated basically by observing the relative position of a tool nose and an alignment point of a tool by naked eyes, so that not only is the energy and time consumed by workers greatly increased, but also the accurate compensation amount cannot be obtained.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for calibrating an A axis of a numerical control machine tool, computer equipment and a storage medium, which are used for solving the technical problems that the required compensation amount is estimated by observing the relative position of a tool nose and an alignment point of a tool through naked eyes, the energy and time consumed by workers are greatly increased, and accurate compensation amount cannot be obtained.
In order to solve the above technical problems, an embodiment of the present invention provides a method for calibrating an axis a of a numerically-controlled machine tool, which adopts the following technical solutions:
loading a first vertical plate on a processing platform, controlling an A shaft to drive a cutter to rotate to two sides of the first vertical plate, and calibrating the rotating radius of the A shaft by measuring and comparing the distance from the cutter point of the cutter to the first vertical plate;
loading a second vertical plate on the processing platform, controlling the A shaft to drive the cutter to rotate to two sides of the second vertical plate, cutting a first frame and a second frame which can be arranged around the first frame, and performing zero calibration on the A shaft by measuring and comparing the distance between the adjacent edges of the first frame and the second frame in the vertical direction of the second vertical plate.
Further, the step of calibrating the turning radius of the a-axis by measuring and comparing the distance from the nose of the tool to the first erected panel specifically comprises:
measuring the distance from the tool nose of the tool to two sides of the first vertical plate respectively, and recording as m and n;
comparing the values of m and n;
if the values of m and n are not equal and are outside the allowable deviation range, calculating a deviation value of the rotating radius of the shaft A and supplementing the deviation value into a processing program so as to calibrate the rotating radius of the shaft A and obtain a target value of the rotating radius of the shaft A;
and if the values of m and n are equal or the difference value is within the allowable deviation range, maintaining the current A-axis rotating radius, and taking the current A-axis rotating radius as the A-axis rotating radius target value.
Further, the step of calculating the deviation value of the rotational radius of the a axis specifically includes:
measuring the thickness of the first vertical plate, and acquiring a preset reference value, wherein the reference value is a preset distance from a tool nose of the tool to the first vertical plate;
and calculating the deviation value of the rotating radius of the shaft A according to the values of m and n, the thickness of the first vertical plate and the preset reference value.
Further, the step of controlling the a-axis to drive the cutter to rotate to the two sides of the first vertical plate specifically comprises:
controlling the A shaft to rotate by 90 degrees to enable the cutter to rotate to one side of the vertical plate; and controlling the A shaft to rotate by-90 degrees to enable the cutter to rotate to the other side of the upright plate.
Further, the step of performing zero calibration of the a-axis by measuring and comparing the distance between the adjacent edges of the first and second boxes in the vertical direction of the second upright plate specifically includes:
measuring the distances, a 'and b', of the first square frame and the second square frame from the near side in the vertical direction of the second upright plate;
comparing the values of a 'and b';
if the values of a 'and b' are not equal and are outside the allowable deviation range, calculating a zero deviation value of an axis A and supplementing the zero deviation value into a system program so as to perform zero calibration on the axis A;
if the values of a 'and b' are equal and/or within the allowable deviation range, the current zero position of the A axis is maintained.
Further, the step of calculating the zero offset value of the axis a specifically includes:
obtaining the target value of the rotating radius of the shaft A and obtaining a preset vertical standard value;
and calculating the zero position deviation value of the shaft A according to the values of a 'and b', the target value of the rotating radius of the shaft A and the preset vertical standard value.
Further, the allowable deviation range is ± 0.01mm.
In order to solve the above technical problem, an embodiment of the present invention further provides a numerical control machining apparatus, including:
the A-axis rotating radius calibration module is used for loading a first vertical plate on the processing platform, controlling the A-axis to drive the cutter to rotate to two sides of the first vertical plate, and calibrating the rotating radius of the A-axis by measuring and comparing the distance from the cutter point of the cutter to the first vertical plate;
the A-axis zero calibration module is used for loading a second vertical plate on the processing platform, controlling the A-axis to drive the cutter to rotate to two sides of the second vertical plate, cutting a first square frame and a second square frame which can be arranged around the first square frame, and performing zero calibration on the A-axis by measuring and comparing the distance between the adjacent edges of the first square frame and the second square frame in the vertical direction of the second vertical plate.
In order to solve the above technical problem, an embodiment of the present invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method for calibrating an a axis of a numerically controlled machine tool as described above when executing the computer program.
In order to solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method for calibrating an a axis of a numerically-controlled machine tool as described above.
Compared with the prior art, the embodiment of the invention mainly has the following beneficial effects:
compared with the prior art, the method and the device for calibrating the rotating shaft of the numerical control machine tool, the computer equipment and the storage medium have the following beneficial effects: through rotating the A axle, change and the plate between the position, through the distance of measuring different positions plate, perhaps through measuring the distance after the plate cutting of different positions department, to the radius of rotation calibration and the zero-bit calibration of the A axle of setting for, make the cutter succeed the tool setting, avoid the relative position of the knife tip of visual observation cutter and alignment point to predict required compensation volume, the calibration easy operation of whole process, the method is high-efficient novel, and has higher precision.
Drawings
In order to more clearly illustrate the solution of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flowchart of one embodiment of a method for calibrating an A-axis of a numerically controlled machine tool according to an embodiment of the present invention;
FIG. 2 is a flow diagram for one embodiment of step S100 in FIG. 1;
FIG. 3 is one of the calibration schematics of one embodiment implemented according to FIG. 2;
FIG. 4 is a second calibration schematic according to one embodiment implemented in FIG. 2;
FIG. 5 is a flow diagram for one embodiment of step S200 in FIG. 1;
FIG. 6 is one of the calibration schematics of one embodiment implemented according to FIG. 5;
FIG. 7 is a second calibration schematic according to one embodiment implemented in FIG. 5;
FIG. 8 is one of the calibration schematics of one embodiment implemented according to FIG. 6;
fig. 9 is a second calibration diagram of an embodiment implemented according to fig. 6.
Reference numerals are as follows:
1. a first upright plate; 11. hole site;
2. a second upright plate; 21. a first block; 22. a second block; 221. chamfering;
3. a knife tip.
Detailed Description
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 embodiments of the invention belong; the terminology used herein in the description of the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention; the terms "including" and "having," and any variations thereof, in the description and claims of embodiments of the invention and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the foregoing drawings, of embodiments of the invention are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to make those skilled in the art better understand the solution of the embodiment of the present invention, the following will clearly and completely describe the solution in the embodiment of the present invention with reference to the flowchart of fig. 1 and the diagrams of fig. 3 and fig. 4, and fig. 6 to fig. 9.
Again according to the flow chart of figure 1 and the illustrations of figures 3 and 4;
step S100, loading the first vertical plate 1 on a processing platform, controlling the A shaft to drive the cutter to rotate to two sides of the first vertical plate 1, and calibrating the rotation radius of the A shaft by measuring and comparing the distance from the cutter point 3 of the cutter to the first vertical plate 1.
Specifically, a first standing plate 1 is loaded on the processing platform, that is, the first standing plate 1 is vertically arranged on the processing platform. The A shaft is controlled to rotate through the A shaft control module, so that a cutter connected to the A shaft is driven to rotate to two sides of the first vertical plate 1 around the X shaft, and the distances from the cutter point of the cutter to the first vertical plate 1 are measured and compared on two sides of the first vertical plate 1 respectively to calibrate the rotation radius of the A shaft.
Again according to the flow chart of figure 1 and the illustrations of figures 6 to 9;
step S200, loading the second vertical plate 2 on the processing platform, controlling the A axis to drive the cutter to rotate to two sides of the second vertical plate 2, cutting out a third frame 21 and a fourth frame 22 capable of being arranged around the third frame 21, and measuring and comparing the distance between the close edges of the third frame 21 and the fourth frame 22 in the vertical direction of the second vertical plate 2 to perform zero position calibration on the A axis.
Specifically, the second erected panel 2 is loaded on the processing platform, that is, the second erected panel 2 is vertically disposed on the processing platform. The rotation of the shaft A is controlled by the shaft A control module, so that the cutter is rotated to two sides of the second vertical plate 2. As the A axis rotates around the X axis, the processing platform moves in the Y axis and/or X axis direction, so that the second vertical plate member 2 moves in the Y axis and/or X axis direction and is cut into a first frame and a second frame which can be enclosed in the first frame by the cutter. The axis a is nulled by measuring and comparing the distance of the adjacent edges of the first and second boxes in the vertical direction of the second upright plate 2.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
Compared with the prior art, the method for calibrating the rotating shaft of the numerical control machine tool at least has the following beneficial effects: the method for calibrating the rotating shaft of the numerical control machine tool aims to provide a system program for calibrating the rotating radius and the zero position of the A shaft, and is specifically embodied in the following steps:
the calibration of the rotation radius of the A shaft is realized by measuring and comparing the distances from the tool nose 3 of the tool to the first vertical plate 1 when the tool is positioned at the two sides of the first vertical plate 1, and calibrating the rotation radius of the A shaft according to the comparison result.
The zero calibration of the A shaft is realized by controlling the rotation of the A shaft to enable a cutter to respectively cut a first frame 21 and a second frame 22 on two sides of the second vertical plate 2; the distances of the adjacent sides of the first frame 21 and the second frame 22 in the vertical direction of the second upright plate 2 are measured and compared, and the zero position of the a-axis is calibrated by the comparison result.
In summary, it can be seen that embodiments of the present invention provide a method for calibrating an a-axis of a numerical control machine tool, where a position between the a-axis and a plate is changed by rotating the a-axis, and a tool is successfully set by measuring distances between the plates at different positions or by measuring distances between the plates at different positions after cutting, and calibrating a set rotation radius and a zero position of the a-axis, so as to avoid observing a relative position between a tool tip and an alignment point of the tool by naked eyes to estimate a required compensation amount.
According to the flowchart of fig. 2 and the illustrations of fig. 3 and 4, in some alternative implementations of the present embodiment, the step of calibrating the turning radius of the a-axis by measuring and comparing the distance of the nose 3 of the tool to the first upright plate 1 specifically comprises:
and S110, measuring the distances from the tool nose 3 of the tool to the two sides of the first vertical plate 1 respectively, and recording the distances as m and n.
And step S120, comparing the values of m and n.
Step S130, if the values of m and n are not equal and are outside the allowable deviation range, calculating a deviation value of the rotating radius of the shaft A and supplementing the deviation value into a processing program so as to calibrate the rotating radius of the shaft A when the shaft A drives the cutter to rotate in the cutting process to obtain a target value of the rotating radius of the shaft A.
Specifically, the calculated A-axis rotating radius deviation value is supplemented into a processing program, after the processing program obtains the A-axis rotating radius deviation value, the current A-axis rotating radius is supplemented according to the A-axis rotating radius deviation value, so that when the cutter is driven to rotate by the A-axis in the cutting process, the cutter processes a workpiece on a correct processing track through the compensation of the A-axis rotating radius deviation value on the original A-axis rotating radius.
And step S140, if the values of m and n are equal or the difference value is within the allowable deviation range, maintaining the current rotating radius of the shaft A when the A shaft drives the cutter to rotate during cutting processing, and taking the current rotating radius of the shaft A as the target value of the rotating radius of the shaft A.
Namely, in the next cutting process, when the A shaft drives the cutter to rotate, the current rotating radius of the A shaft does not need to be changed.
Further according to the flowchart of fig. 2 and the diagrams of fig. 3 and 4, in some alternative implementations of this embodiment, the step of calculating the deviation value of the rotation radius of the axis a specifically includes:
step S131, measuring the thickness t of the first vertical plate 1 and acquiring a preset reference value S.
And step S132, calculating the A-axis rotating radius deviation value alpha according to m, n, S and t. It should be noted that the predetermined reference value s is specified as the distance that the cutting edge 3 of the tool should have from the standing plate 1.
Referring to fig. 3 and 4, in particular, in an embodiment of the present invention, in order to better understand the calculation process of the deviation value of the rotation radius of the a-axis, the following formula is specifically illustrated:
alpha is obtained from the values of m, n, t and s. The formula for calculating the deviation value of the rotating radius of the shaft A is as follows:
α＝|m+n-2s-t|/2；
when m is larger than n, alpha is a positive value; conversely, when m < n, α is negative.
The value of alpha obtained by the formula can be supplemented into a processing program so as to calibrate the rotating radius of the shaft A when the shaft A drives the cutter to rotate in the cutting process and obtain a target value of the rotating radius of the shaft A.
According to fig. 3 or fig. 4, in some alternative implementations of the present embodiment, the step of controlling the a-axis to drive the cutter to rotate to the two sides of the first vertical plate 1 specifically includes:
controlling the A shaft to rotate 90 degrees through the A shaft control template, and enabling the cutter to rotate to one side of the first vertical plate 1; the A shaft is controlled to rotate to-90 degrees through the A shaft control template, so that the cutter rotates to the other side of the first vertical plate 1. It should be noted that the rotation of the a-axis by 90 ° or-90 ° is controlled based on the initial position of the a-axis, which is to ensure that the line between the two positions of the a-axis when rotated by 90 ° and-90 ° is perpendicular to the first upright plate 1.
According to fig. 3 or 4, in some optional implementation manners of this embodiment, a hole 11 may be formed in the first vertical plate 1, and in the step of controlling the shaft a to rotate so that the tool rotates to two sides of the first vertical plate 1, the shaft a is controlled to rotate so that the tool tip 3 of the tool is aligned with the hole 11, and when a vernier caliper is used to measure the distance from the tool tip 3 to the vertical plate 1, the hole 11 may play a role in avoiding a gap in the vernier caliper, so as to facilitate the measurement of the vernier caliper.
In some optional implementations of this embodiment, a sensor can be placed on the nc machine tool near the tool to measure the distance of the tip 3 of the tool to a measured object, for example, in this embodiment, the sensor can measure the tip 3 to the first upright plate 1.
According to the flowchart of fig. 5 and the illustrations of fig. 6 to 9, in particular, in one embodiment of the invention, the step of zeroing the a-axis by measuring and comparing the distance of the first and second blocks 21 and 22 from the near edge in the vertical direction of the second upright plate 2 comprises in particular:
step S210, the distance between the near edges of the first frame 21 and the second frame 22 in the vertical direction of the second erected panel 2 is measured, and may be denoted as a 'and b'.
Step 220, compare the values of a 'and b'.
And step S230, if the values of a 'and b' are not equal and are outside the allowable deviation range, calculating a zero position deviation value of the axis A and supplementing the zero position deviation value into a machining program so as to perform zero position calibration on the axis A.
Specifically, the calculated A-axis zero offset value is supplemented into a machining program, and after the machining program obtains the A-axis zero offset value, the current A-axis zero position is supplemented according to the A-axis zero offset value, so that when the cutter is driven to rotate by the A-axis in cutting machining, the cutter is enabled to machine the workpiece on a correct machining track through the compensation of the A-axis zero offset value on the original A-axis zero position.
And step S240, if the values of a 'and b' are equal and are within the allowable deviation range, maintaining the current zero position of the A shaft when the A shaft drives the cutter to rotate during the cutting process.
Namely, in the next cutting process, when the A shaft drives the cutter to rotate, the current zero position of the A shaft is maintained.
According to the flowchart of fig. 5 and the diagrams of fig. 6 to 9, in some optional implementations of this embodiment, the step of calculating the a-axis zero offset value specifically includes:
step S231, the a-axis radius target value k is acquired, and a vertical standard value L, which is a value that the first block 21 and the second block 22 should have when the distances a 'and b' of the adjacent sides in the vertical direction of the second erected panel 2 are equal, is acquired.
And step S232, calculating the zero offset value gamma of the A axis according to the values of a 'and b', k and L.
In order to better understand the calculation process of the zero offset value of the a-axis, according to the illustrations of fig. 6 to 9, in one embodiment of the present invention, the following formula is used:
and obtaining gamma according to the values of a ', b', L and k. The formula for calculating the zero offset value of the A axis is as follows:
when a 'is less than L and b' is more than L,
a`＝L-2Sinγ，b`＝L+2Sinγ，
derived, sin γ = | (a '-b') |/4k;
when a 'is more than b', gamma is a positive value; conversely, when a 'is less than b', gamma is negative.
The value of gamma obtained by the formula can be supplemented into the shaft A so as to carry out zero calibration on the shaft A when the shaft A drives the cutter to rotate in the cutting process.
It should be noted that fig. 6 shows a state where the zero position of the a-axis has an offset and is not calibrated; fig. 7 shows the state in which the zero position of the a-axis is calibrated.
In some alternative implementations of the present embodiment, as shown in fig. 6 or fig. 7, the second block 22 may have a chamfer 221, and the chamfer 221 may be used for determining the cutting direction of the tool. I.e. by the position of the chamfer 221 which two opposite sides of the second frame 22 are located in the vertical direction of the second standing plate 2 and which two opposite sides are located at the level of the standing plate 1. It will be understood that the first frame 21 and the second frame 22 are completely cut from the second erected plate 2, so as to obtain a workpiece similar to a Chinese character 'hui', and that a chamfer can be formed at an outer corner of the Chinese character 'hui', i.e. a horizontal direction and a vertical direction of the Chinese character 'hui' workpiece can be respectively obtained by the chamfer.
In some alternative implementations of this embodiment, the allowable deviation range is ± 0.01mm. Namely, the allowable deviation ranges of the calculated A-axis rotating radius deviation value and/or the A-axis zero deviation value are +/-0.01 mm.
In some optional implementations of the present embodiment, the first standing plate 1 and the second standing plate 2 may both be metal plates, that is, metal plates each of which is a vertically placed metal plate. The metal plate may be a stainless steel plate, a carbon steel plate or an aluminum alloy plate, and a plate made of a metal material other than those mentioned herein may be used.
Compared with the prior art, the method for calibrating the rotating shaft of the numerical control machine tool at least has the following beneficial effects: the calibration method of the rotating shaft of the numerical control machine tool aims to provide a system and a method for calibrating the rotating radius and the zero position of the A shaft, and particularly obtains a corresponding compensation value through measurement and calculation, then compensates the A shaft, and enables a tool to be successfully set without other external factors (such as visual observation).
In order to solve the above technical problem, an embodiment of the present invention further provides a numerical control processing apparatus, including:
and the A-axis rotating radius calibration module is used for loading the first vertical plate 1 on the processing platform, controlling the A-axis to drive the cutter to rotate to two sides of the first vertical plate 1, and calibrating the rotating radius of the A-axis by measuring and comparing the distance from the cutter point 4 of the cutter to the first vertical plate 1.
And the A-axis zero calibration module is used for loading the second vertical plate 2 on the processing platform, controlling the A-axis driving cutter to rotate to two sides of the second vertical plate 2, cutting out a third frame 21 and a fourth frame 22 which can be arranged around the third frame 21, and performing zero calibration on the A-axis by measuring and comparing the distances between the similar edges of the third frame 21 and the fourth frame 22 in the vertical direction of the second vertical plate 2.
In order to solve the above technical problem, an embodiment of the present invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method for calibrating the a axis of the numerically controlled machine tool when executing the computer program.
The computer device comprises a memory, a processor and a network interface which are mutually connected in a communication way through a system bus. It should be noted that only a computer device having components is shown, but it should be understood that not all of the shown components are required to be implemented, and more or fewer components may be implemented instead. As will be understood by those skilled in the art, the computer device herein is a device capable of automatically performing numerical calculation and/or information processing according to a preset or stored instruction, and the hardware includes, but is not limited to, a microprocessor, an ApplicAtion Specific IntegrAted Circuit (ASIC), a ProgrAmmAble GAte ArrAy (FPGA), a DigitAl SignAl Processor (DSP), an embedded device, and the like.
The computer device can be a desktop computer, a notebook, a palm computer, a cloud server and other computing devices. The computer equipment can carry out man-machine interaction with a user through a keyboard, a mouse, a remote controller, a touch panel or voice control equipment and the like.
The memory includes at least one type of readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the storage may be an internal storage unit of the computer device, such as a hard disk or a memory of the computer device. In other embodiments, the memory may also be an external storage device of the computer device, such as a plug-in hard disk equipped on the computer device, a SmArt Memory CArd (SMC), a Secure DigitAl (SD) CArd, a FlAsh memory CArd (flaash cad), and the like. Of course, the memory may also include both internal and external storage devices of the computer device. In this embodiment, the memory is generally used for storing an operating system installed in the computer device and various types of application software, such as program codes of a calibration method of an a-axis of a numerically controlled machine tool. In addition, the memory may also be used to temporarily store various types of data that have been output or are to be output.
The processor may be a CentrAl Processing Unit (CPU), controller, microcontroller, microprocessor, or other data Processing chip in some embodiments. The processor 62 is typically used to control the overall operation of the computer device. In this embodiment, the processor is configured to execute the program code stored in the memory or process data, for example, execute the program code of the calibration method for the a axis of the numerical control machine.
The network interface may include a wireless network interface or a wired network interface, which is typically used to establish a communication connection between the computer device and other electronic devices.
To solve the above technical problem, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, where the computer program is executable by at least one processor to cause the at least one processor to execute the steps of the method for calibrating an a-axis of a numerically-controlled machine tool as described above.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the embodiments of the present invention or portions thereof contributing to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes several instructions for enabling a terminal device (which may be a computer, a server, or a network device) to execute the methods described in the embodiments of the present invention.
It should be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of them, and the preferred embodiments of the present invention are shown in the drawings, without limiting the scope of the present invention. Embodiments of the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein but rather should be construed as broadly as the present disclosure. Although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the embodiments of the present invention may be modified or equivalents may be substituted for some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the description and the drawings of the embodiments of the present invention are directly or indirectly applied to other related technical fields, and are within the protection scope of the embodiments of the present invention.
Claims (10)
1. A method for calibrating an A shaft of a numerical control machine tool, wherein the numerical control machine tool is provided with five universal driving shafts, comprising an X shaft, a Y shaft, a Z shaft, an A shaft and a C shaft, wherein the A shaft rotates around the X shaft, and the method is characterized by comprising the following steps of:
loading a first vertical plate on a processing platform, controlling an A shaft to drive a cutter to rotate to two sides of the first vertical plate, and calibrating the rotating radius of the A shaft by measuring and comparing the distance from the cutter point of the cutter to the first vertical plate;
loading a second vertical plate on the processing platform, controlling the A shaft to drive the cutter to rotate to two sides of the second vertical plate, cutting a first frame and a second frame which can be arranged around the first frame, and performing zero calibration on the A shaft by measuring and comparing the distance between the adjacent edges of the first frame and the second frame in the vertical direction of the second vertical plate.
2. The method for calibrating the A axis of the numerical control machine tool according to claim 1, wherein the step of calibrating the turning radius of the A axis by measuring and comparing the distance from the tip of the tool to the first vertical plate specifically comprises:
measuring the distance from the tool nose of the tool to two sides of the first vertical plate respectively, and recording as m and n;
comparing the values of m and n;
if the values of m and n are not equal and are outside the allowable deviation range, calculating a deviation value of the rotating radius of the shaft A and supplementing the deviation value into a processing program so as to calibrate the rotating radius of the shaft A and obtain a target value of the rotating radius of the shaft A;
and if the values of m and n are equal or the difference value is within the allowable deviation range, maintaining the current A-axis rotating radius, and taking the current A-axis rotating radius as the A-axis rotating radius target value.
3. The method for calibrating the a-axis of a numerically controlled machine tool according to claim 2, wherein the step of calculating the deviation value of the turning radius of the a-axis specifically comprises:
measuring the thickness of the first vertical plate, and acquiring a preset reference value, wherein the reference value is a preset distance from a tool nose of the tool to the first vertical plate;
and calculating the deviation value of the rotating radius of the shaft A according to the values of m and n, the thickness of the first vertical plate and the preset reference value.
4. The method for calibrating the A shaft of the numerical control machine tool according to claim 1, wherein the step of controlling the A shaft to drive the cutter to rotate to the two sides of the first vertical plate specifically comprises the following steps:
controlling the A shaft to rotate by 90 degrees to enable the cutter to rotate to one side of the first upright plate; and controlling the A shaft to rotate by-90 degrees to enable the cutter to rotate to the other side of the first upright plate.
5. The method for calibrating the a-axis of a numerically controlled machine tool according to claim 2, wherein said step of performing zero calibration of said a-axis by measuring and comparing the distance between the adjacent edges of said first and second blocks in the vertical direction of said second vertical plate comprises in particular:
measuring the distances, a 'and b', of the first square frame and the second square frame from the near side in the vertical direction of the second upright plate;
comparing the values of a 'and b';
if the values of a 'and b' are not equal and are outside the allowable deviation range, calculating a zero deviation value of the axis A and supplementing the zero deviation value into a system program so as to perform zero calibration on the axis A;
if the values of a 'and b' are equal and/or within the allowable deviation range, the current zero position of the A axis is maintained.
6. The method for calibrating the a-axis of a numerically controlled machine tool according to claim 5, wherein the step of calculating the zero offset value of the a-axis specifically comprises:
obtaining the target value of the rotating radius of the shaft A and obtaining a preset vertical standard value;
and calculating the zero position deviation value of the shaft A according to the values of a 'and b', the target value of the rotating radius of the shaft A and the preset vertical standard value.
7. The method for calibrating the a-axis of a numerically controlled machine tool according to any one of claims 2 and 3, 5 and 6, wherein the allowable deviation range is ± 0.01mm.
8. The utility model provides a numerical control processingequipment, this numerical control processingequipment have five universal driving shafts, including X axle, Y axle, Z axle, A axle and C axle, wherein the A axle rotates around the X axle, its characterized in that includes:
the A-axis rotating radius calibration module is used for loading a first vertical plate on the processing platform, controlling the A-axis to drive the cutter to rotate to two sides of the first vertical plate, and calibrating the rotating radius of the A-axis by measuring and comparing the distance from the cutter point of the cutter to the first vertical plate;
the A-axis zero calibration module is used for loading a second vertical plate on the processing platform, controlling the A-axis to drive the cutter to rotate to two sides of the second vertical plate, cutting a first square frame and a second square frame which can be arranged around the first square frame, and performing zero calibration on the A-axis by measuring and comparing the distance between the adjacent edges of the first square frame and the second square frame in the vertical direction of the second vertical plate.
9. A computer apparatus comprising a memory and a processor, the memory having stored therein a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method for calibrating the a-axis of a numerically controlled machine tool according to any of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it has stored thereon a computer program which, when being executed by a processor, implements the steps of the method for the calibration of the a-axis of a numerically controlled machine tool according to any one of claims 1 to 7.
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