CN115194555A - Method for carving along with randomly placed workpiece directions - Google Patents
Method for carving along with randomly placed workpiece directions Download PDFInfo
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- CN115194555A CN115194555A CN202210840894.XA CN202210840894A CN115194555A CN 115194555 A CN115194555 A CN 115194555A CN 202210840894 A CN202210840894 A CN 202210840894A CN 115194555 A CN115194555 A CN 115194555A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 70
- 238000013507 mapping Methods 0.000 claims abstract description 28
- 238000003754 machining Methods 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 230000001172 regenerating effect Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
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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
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/14—Control or regulation of the orientation of the tool with respect to the work
Abstract
The invention belongs to the technical field of machining processes, and relates to a method for carving along with any position of a placed workpiece, which comprises the following steps: determining a real-time coordinate system of the workpiece according to the position of the workpiece; determining an inclination angle between a real-time coordinate system and a preset coordinate system of the workpiece; mapping the processing data to a real-time coordinate system of the workpiece in a one-to-one correspondence manner to form new processing data; regenerating the original processing technology file based on the preset coordinate system by using the new processing data to obtain a new processing technology file; and engraving the workpiece by using the new machining process file. The invention can finish the processing of workpieces placed at any angle, does not require the workpieces to be placed correctly for the engraving processing of various heavy workpieces, reduces the workload of moving heavy objects back and forth, saves the time for adjusting the workpieces, reduces the workload of workers, improves the working efficiency, reduces the production cost and the safety risk, has strong practicability, and is worthy of popularization.
Description
Technical Field
The invention belongs to the technical field of machining processes, and particularly relates to a method for carving along with randomly placed workpiece positions.
Background
In the existing numerical control engraving process, a workpiece needs to be placed on a fixed workbench, and a certain point on the workpiece is set as an origin (starting point) to process the workpiece. Since it is a point, there is no way to determine the orientation of the workpiece, which requires that the workpiece be oriented along the axes of the engraver as shown in fig. 2, the orientation essentially being adjusted so that the axes of the workpiece to be processed and the axes of the engraver coincide, so that the desired result is obtained during the engraving process.
In conventional use, the method for adjusting the placement of the workpiece according to the coordinate axes of the engraving machine shown in fig. 2 includes the following steps:
1. drawing a horizontal line or a vertical line on the workbench by using a cutter as a reference datum, and adjusting the position of the workpiece for multiple times until the workpiece is placed along the line to be correct;
2. walking along the edge of the workpiece by using a cutter or red light to see whether the workpiece is aligned, if not, adjusting the placement of the workpiece, and repeating the steps until the walking route of the machine head is aligned with the edge of the workpiece;
3. fixing a standard guiding rule on the workbench, and moving and adjusting a workpiece to be close to the guiding rule;
4. the workbench is made to be independently rotatable, the workbench is rotated to drive the workpiece to rotate, and the workpiece is aligned by matching with the red light.
According to the habit, the transverse, horizontal and vertical placement is most convenient. The workpiece is easy to put on the upside down for small and light workpieces, and the workpiece is not easy to put on the upside down for large and heavy workpieces. For the heavy workpiece randomly placed as shown in fig. 3, a plurality of people are required to lift and use a pry bar during adjustment, even hoisting equipment is required, so that the operation is time-consuming and labor-consuming, the labor capacity of workers is increased, the safety risk in the moving process is increased, multiple adjustments are required in the process of righting the workpiece, the process is complex, the operation is complicated, and the efficiency is low.
Disclosure of Invention
In view of the above, the present invention provides a method for engraving along with any orientation of a workpiece, so as to solve the above mentioned technical problems.
The technical scheme of the invention is as follows:
a method for carving along with randomly placed workpiece orientations comprises the following steps:
determining a real-time coordinate system of the workpiece according to the position of the workpiece;
determining an inclination angle between a real-time coordinate system and a preset coordinate system of the workpiece;
mapping the processing data to a real-time coordinate system of the workpiece in a one-to-one correspondence manner to form new processing data;
regenerating the original processing technology file based on the preset coordinate system by using the new processing data to obtain a new processing technology file;
and engraving the workpiece by using the new machining process file.
Preferably, determining the real-time coordinate system of the workpiece based on the position of the workpiece comprises the steps of:
determining a zero point of a workpiece coordinate system, the direction of an X axis, the direction of a Y axis and the direction of a Z axis according to actual requirements;
and moving a cutter of the machine tool to the zero point of the workpiece coordinate system, and recording the real-time coordinate zero point in a working coordinate system on the machine tool.
Preferably, the determining the inclination angle between the real-time coordinate system and the preset coordinate system of the workpiece comprises the following steps:
taking one side edge of the workpiece as a reference, wherein the side edge is parallel to an X axis or a Y axis of a real-time coordinate system of the workpiece;
moving the cutter to one end point of the side edge, and recording the current two-dimensional logic position of the cutter as P0 (X0, Y0);
moving the cutter to the other end point of the side edge, and recording the current two-dimensional logic position of the cutter as P1 (X1, Y1);
calculating the inclination angle A of the workpiece by using the formula (1) or the formula (2),
where a is the tilt angle of the workpiece, Y0 is the Y-axis coordinate of the point P0, X0 is the X-axis coordinate of the point P0, Y1 is the Y-axis coordinate of the point P1, and X1 is the X-axis coordinate of the point P1.
Preferably, the machining data are mapped to the real-time coordinate system of the workpiece in a one-to-one correspondence manner by using the following formula (3),
wherein, A is the inclination angle of the workpiece, X is the X-axis coordinate of the processing data before mapping, Y is the Y-axis coordinate of the processing data before mapping, Z is the Z-axis coordinate of the processing data before mapping, X ' is the X-axis coordinate of the new processing data formed after mapping of X, Y ' is the Y-axis coordinate of the new processing data formed after mapping of Y, Z ' is the Z-axis coordinate of the new processing data formed after mapping of Z, dx is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the X axis, dy is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Y axis, and dz is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Z axis.
Compared with the prior art, the method for carving along with the randomly placed workpiece orientation provided by the invention has the advantages that the machining path of the machining file is adjusted, so that the machining path is adaptive to the machining workpiece on the premise of not changing the orientation of the workpiece to be machined, the key of the adjustment is that the direction and the position of the workpiece to be machined are measured by a simple method according to the existing conditions, and the machining file is mapped to a new position through rotation and translation according to the measured direction and position.
The invention can complete the processing of workpieces placed at any angle, does not require the workpieces to be placed correctly for the engraving processing of various heavy workpieces, reduces the workload of moving the heavy workpieces back and forth, saves the time for adjusting the workpieces, reduces the workload of workers, improves the working efficiency, reduces the production cost and the safety risk, has strong practicability and is worthy of popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention and the design thereof, the drawings required for the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained by those skilled in the art without inventive effort.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 shows the machined workpiece and the machined path coordinate axes in the same direction in the present invention;
FIG. 3 shows the inconsistency between the coordinate axes of the workpiece to be machined and the coordinate axes of the engraving machine in the present invention;
fig. 4 shows a corrected new processing document path according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood and capable of being implemented by those skilled in the art, the present invention is described in detail with reference to fig. 1 to 4 and specific embodiments. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
A method for carving along with any orientation of a placed workpiece, as shown in fig. 1, comprising the following steps:
determining a real-time coordinate system of the workpiece according to the position of the workpiece;
determining an inclination angle between a real-time coordinate system and a preset coordinate system of the workpiece;
mapping the processing data to a real-time coordinate system of the workpiece in a one-to-one correspondence manner to form new processing data;
regenerating the original processing technology file based on the preset coordinate system by using the new processing data to obtain a new processing technology file;
and engraving the workpiece by using the new machining process file.
Further, determining the real-time coordinate system of the workpiece based on the position of the workpiece comprises the steps of:
determining a zero point of a workpiece coordinate system, the direction of an X axis, the direction of a Y axis and the direction of a Z axis according to actual requirements;
moving the tool of the machine tool to the zero point of the workpiece coordinate system, and recording the real-time coordinate zero point in the working coordinate system on the machine tool.
Further, determining the inclination angle between the real-time coordinate system and the preset coordinate system of the workpiece comprises the following steps:
taking one side edge of the workpiece as a reference, wherein the side edge is parallel to an X axis or a Y axis of a real-time coordinate system of the workpiece;
moving the cutter to one end point of the side edge, and recording the current two-dimensional logic position of the cutter as P0 (X0, Y0);
moving the cutter to the other end point of the side edge, and recording the current two-dimensional logic position of the cutter as P1 (X1, Y1);
calculating the inclination angle A of the workpiece by using the formula (1) or the formula (2),
where A is the tilt angle of the workpiece, Y0 is the Y-axis coordinate of the point P0, X0 is the X-axis coordinate of the point P0, Y1 is the Y-axis coordinate of the point P1, and X1 is the X-axis coordinate of the point P1.
Furthermore, the processing data are mapped to the real-time coordinate system of the workpiece in a one-to-one correspondence manner by using the following formula (3),
wherein, A is the inclination angle of the workpiece, X is the X-axis coordinate of the processing data before mapping, Y is the Y-axis coordinate of the processing data before mapping, Z is the Z-axis coordinate of the processing data before mapping, X ' is the X-axis coordinate of the new processing data formed after mapping of X, Y ' is the Y-axis coordinate of the new processing data formed after mapping of Y, Z ' is the Z-axis coordinate of the new processing data formed after mapping of Z, dx is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the X axis, dy is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Y axis, and dz is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Z axis.
The following description is given with reference to specific examples:
as shown in fig. 2 below, in the original processing path, the X-axis direction in the path is generally parallel to the transverse axis direction of the engraver, and the Y-axis direction in the path is generally parallel to the longitudinal axis of the engraver; therefore, when the XYZ coordinate axis direction of the workpiece is consistent with the coordinate axis direction of the engraving machine during normal processing, the engraving can be normally finished; the schematic diagram of the final engraving is shown in fig. 2:
when the coordinate axis of the processed workpiece is inconsistent with the coordinate axis of the engraving machine, the engraving effect is as shown in fig. 3, at the moment, the coordinate of the processing path file and the processed workpiece have an inclination angle, and part of the processing path even exceeds the processed plate; this does not correspond to the effect expected by the customer.
The solution idea is as follows:
the essence of the method is to adjust the processing path of the processing file, so that the processing path is adapted to the processing workpiece on the premise of not changing the orientation of the processing workpiece, and the key of the adjustment is to measure the direction and position of the processing workpiece by a simple method according to the existing conditions, and map the processing file to a new position by rotating and translating according to the measured direction and position.
The invention provides a method for carving along with the position of a randomly placed workpiece, which realizes the shape-following carving of the randomly placed workpiece according to the following steps:
and moving a cutter of the machine tool to the zero point of the coordinate of the workpiece according to the position of the workpiece placed at will, recording the zero point of the real-time coordinate in a working coordinate system on the machine tool, and determining the zero point of the real-time coordinate as the real-time coordinate system of the workpiece.
Moving the tool to a certain point P0 shown in FIG. 4 by taking one side edge of the workpiece as a reference, wherein the point P0 is generally positioned at the lower left corner of the workpiece and is used as a reference point, and recording the current two-dimensional logic position of the tool as P0 (X0, Y0);
and moving the position of the cutter to another position P1, wherein the P1 is generally positioned at the upper left corner or the lower right corner of the workpiece, recording the current two-dimensional logic position of the cutter as P1 (X1, Y1), and calculating the inclination between P0 and P1, namely the inclination angle of the workpiece.
The inclination angle A of the workpiece can be obtained according to the position difference between P0 and P1,
when the vector direction formed by the P0 to the P1 is consistent with the Y-axis direction of the real-time coordinate system of the workpiece, the plate inclination angle A satisfies the following formula:
when the vector direction formed by P0 to P1 is consistent with the X-axis direction of the real-time coordinate system of the workpiece, the inclination angle A of the plate satisfies the following formula:
where A is the tilt angle of the workpiece, Y0 is the Y-axis coordinate of the point P0, X0 is the X-axis coordinate of the point P0, Y1 is the Y-axis coordinate of the point P1, and X1 is the X-axis coordinate of the point P1.
The processing data are mapped to a real-time coordinate system of the workpiece in a one-to-one correspondence manner by using the following formula (3) to form new processing data,
wherein, A is the inclination angle of the workpiece, X is the X-axis coordinate of the processing data before mapping, Y is the Y-axis coordinate of the processing data before mapping, Z is the Z-axis coordinate of the processing data before mapping, X ' is the X-axis coordinate of the new processing data formed after mapping of X, Y ' is the Y-axis coordinate of the new processing data formed after mapping of Y, Z ' is the Z-axis coordinate of the new processing data formed after mapping of Z, dx is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the X axis, dy is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Y axis, and dz is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Z axis.
And regenerating the original processing file based on the preset coordinate system according to the calculated new processing data to obtain a new processing file, wherein the original processing file is generally a vector graphic file or a G code file, but is not limited to the vector graphic file or the G code file, and finally, the new processing file is utilized to carve the workpiece.
Compared with the prior art, the method for carving along with the randomly placed workpiece positions provided by the invention has the advantages that the machining path of the machining file is adjusted, so that the machining path is adaptive to the machined workpiece on the premise of not changing the position of the workpiece to be machined, the key of the adjustment is that the direction and the position of the workpiece to be machined are measured by a simple method according to the existing conditions, and the machining file is mapped to a new position through rotation and translation according to the measured direction and position.
The invention can finish the processing of workpieces placed at any angle, does not require the workpieces to be placed correctly for the engraving processing of various heavy workpieces, reduces the workload of moving heavy objects back and forth, saves the time for adjusting the workpieces, reduces the workload of workers, improves the working efficiency, reduces the production cost and the safety risk, has strong practicability, and is worthy of popularization.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (4)
1. A method for carving along with randomly placed workpiece orientations is characterized by comprising the following steps:
determining a real-time coordinate system of the workpiece according to the position of the workpiece;
determining an inclination angle between a real-time coordinate system and a preset coordinate system of the workpiece;
mapping the processing data to a real-time coordinate system of the workpiece in a one-to-one correspondence manner to form new processing data;
regenerating the original processing technology file based on the preset coordinate system by using the new processing data to obtain a new processing technology file;
and engraving the workpiece by using the new machining process file.
2. The method of claim 1, wherein determining the real-time coordinate system of the workpiece based on the position of the workpiece comprises the steps of:
determining a zero point of a workpiece coordinate system, the direction of an X axis, the direction of a Y axis and the direction of a Z axis according to actual requirements;
moving the tool of the machine tool to the zero point of the workpiece coordinate system, and recording the real-time coordinate zero point in the working coordinate system on the machine tool.
3. The method of claim 1, wherein determining the tilt angle between the real-time coordinate system and the predetermined coordinate system of the workpiece comprises the steps of:
taking one side edge of the workpiece as a reference, wherein the side edge is parallel to an X axis or a Y axis of a real-time coordinate system of the workpiece;
moving the cutter to one endpoint of the side edge, and recording the current two-dimensional logic position of the cutter as P0 (X0, Y0);
moving the cutter to the other end point of the side edge, and recording the current two-dimensional logic position of the cutter as P1 (X1, Y1);
calculating the inclination angle A of the workpiece by using the formula (1) or the formula (2),
where A is the tilt angle of the workpiece, Y0 is the Y-axis coordinate of the point P0, X0 is the X-axis coordinate of the point P0, Y1 is the Y-axis coordinate of the point P1, and X1 is the X-axis coordinate of the point P1.
4. The method for engraving according to the orientation of the arbitrarily placed workpiece as claimed in claim 1, wherein the machining data is mapped to the real-time coordinate system of the workpiece in a one-to-one correspondence by using the following equation (3),
wherein, A is the inclination angle of the workpiece, X is the X-axis coordinate of the processing data before mapping, Y is the Y-axis coordinate of the processing data before mapping, Z is the Z-axis coordinate of the processing data before mapping, X ' is the X-axis coordinate of the new processing data formed after mapping of X, Y ' is the Y-axis coordinate of the new processing data formed after mapping of Y, Z ' is the Z-axis coordinate of the new processing data formed after mapping of Z, dx is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the X axis, dy is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Y axis, and dz is the deviation value of the zero point of the workpiece preset coordinate system and the real-time coordinate system on the Z axis.
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| CN202210840894.XA CN115194555A (en) | 2022-07-18 | 2022-07-18 | Method for carving along with randomly placed workpiece directions |
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| CN202210840894.XA CN115194555A (en) | 2022-07-18 | 2022-07-18 | Method for carving along with randomly placed workpiece directions |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231066A (en) * | 2011-03-01 | 2011-11-02 | 上海维宏电子科技有限公司 | Method for realizing processed coordinate transition in numerical control system |
| CN105302072A (en) * | 2015-10-29 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control machine tool processing method capable of eliminating height position difference |
| CN105373074A (en) * | 2015-12-04 | 2016-03-02 | 哈尔滨汽轮机厂有限责任公司 | Steam turbine blade processing method based on molded line adjustment |
| CN112506135A (en) * | 2020-11-23 | 2021-03-16 | 崴立机电（苏州）有限公司 | Method capable of quickly defining workpiece coordinates of randomly placed workpiece |
| CN113792361A (en) * | 2021-09-17 | 2021-12-14 | 合肥艾克斯特智能科技有限公司 | Part marking method and device based on DXF file and storable medium |
-
2022
- 2022-07-18 CN CN202210840894.XA patent/CN115194555A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231066A (en) * | 2011-03-01 | 2011-11-02 | 上海维宏电子科技有限公司 | Method for realizing processed coordinate transition in numerical control system |
| CN105302072A (en) * | 2015-10-29 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control machine tool processing method capable of eliminating height position difference |
| CN105373074A (en) * | 2015-12-04 | 2016-03-02 | 哈尔滨汽轮机厂有限责任公司 | Steam turbine blade processing method based on molded line adjustment |
| CN112506135A (en) * | 2020-11-23 | 2021-03-16 | 崴立机电（苏州）有限公司 | Method capable of quickly defining workpiece coordinates of randomly placed workpiece |
| CN113792361A (en) * | 2021-09-17 | 2021-12-14 | 合肥艾克斯特智能科技有限公司 | Part marking method and device based on DXF file and storable medium |
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