CN115981242A - Method, device, processor and computer readable storage medium for realizing automatic probe detection processing - Google Patents

Abstract

The invention relates to a method for realizing automatic detection processing of a probe, wherein (1) the probe is arranged on a Z-axis bracket of a numerical control system, and the ejection and the retraction of the probe are controlled by a cylinder; (2) Generating a detection path along the processing direction according to a detection point generation strategy; (3) Executing automatic detection processing according to the generated detection path, and acquiring coordinates of the edge of the target object; (4) And automatically generating a file directly used for processing the numerical control system by automatically detecting and recognizing the contour of the target object through a contour automatic fitting algorithm and combining a preset processing strategy in the numerical control system. The invention also relates to a corresponding device, a processor and a computer readable storage medium thereof. The method, the device, the processor and the computer readable storage medium for realizing the automatic detection processing of the probe have no requirements on illumination and measurement environments, can stably obtain the outline in any environment, and can automatically generate the detection path with any shape.

Description

Method, device, processor and computer-readable storage medium for realizing automatic probe detection and processing

technical field

The present invention relates to the technical field of automatic control, in particular to the technical field of automatic measurement of machine tools, and specifically refers to a method, device, processor and computer-readable storage medium for realizing automatic detection and processing of probes.

Background technique

There is a seamless basin product in the home improvement industry. The seamless basin is made of the upper countertop (usually rock slab or natural stone) and the lower basin (ceramic basin). The rear structure is stable, and the middle is fixed with glue without gaps, so it is called a seamless basin. Ceramic pots will be deformed to varying degrees during the sintering process, and it is difficult to manufacture standard-sized ceramic pots. High-pressure water jet processing has high requirements on the target distance, which is the distance between the waterjet head and the processing surface. When the target distance is not suitable, the actual size obtained by cutting is inconsistent with the theoretical size. The seamless basin has strict requirements on the size of the countertop and the ceramic basin, so it is necessary to obtain the outline information of the ceramic basin accurately. Better stitching effect.

Different parts of ceramic basins have different slopes, radians, and reflective degrees, and there are many different shapes and sizes. It is difficult to ensure that ceramic basins are placed flat, and ceramic basins are generally cut by high-pressure water jets. There is a lot of water and sediment in the production environment. , the visual recognition of the inner contour of the ceramic basin is difficult to ensure the stability of the effect in the harsh and changeable environment; the probe detection contour can adapt to the above environment, and the inner contour of the ceramic basin can be stably obtained in the known environment. Therefore, it is urgent A technical solution that can accurately obtain the inner contour of the ceramic basin through a probe is needed to solve the technical defects existing in the current prior art.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a method, device, processor and computer-based automatic detection and processing of probes with high efficiency, high precision, high stability and strong adaptability. Read storage media.

In order to achieve the above object, the method, device, processor and computer-readable storage medium for realizing automatic probe detection and processing of the present invention are as follows:

The main feature of the method for realizing the automatic detection and processing of probes is that the method includes the following steps:

(1) Install the probe on the Z-axis support of the numerical control system, and control the ejection and retraction of the probe through the cylinder;

(2) According to the detection point generation strategy, the detection path is generated along the processing direction;

(3) Perform automatic detection processing according to the generated detection path, and obtain the coordinates of the edge of the target object;

(4) The contour of the target object recognized by automatic detection is automatically generated through the contour automatic fitting algorithm, combined with the preset processing strategy in the numerical control system, to automatically generate a file directly used for machining by the numerical control system.

Preferably, the step (1) is specifically:

Install the probe on the Z-axis support of the numerical control system, the numerical control system can control the movement of the detection device, the detection device is provided with a cylinder, and the cylinder is used to control the ejection and retraction of the probe , and the probe is higher than the cutting head in retracted state, and lower than the cutting head in ejected state.

Preferably, said step (2) specifically includes the following steps:

(2.1) Based on the standard drawing size, according to the detection point generation strategy, along the processing direction, generate detection end points on the standard graphics at a certain interval;

(2.2) According to the detection end point, calculate the corresponding detection starting point within the safety distance in the normal direction;

(2.3) connecting the detection starting point and the detection end point to obtain the detection direction;

(2.4) Use the CAM software to load the standard target object drawing, select the target object graphic, and click Generate Probing NC to generate the corresponding probing path.

Preferably, said step (3) specifically includes the following steps:

(3.1) The probe is ejected, and the detection device is set at a preset position to detect a starting height;

(3.2) performing automatic centering processing to obtain the center position of the target object;

(3.3) Perform automatic detection according to the generated detection path;

(3.4) moving to the detection starting point, and performing detection along the detection direction;

(3.5) The detection device described in uses the encoder to latch the obtained detection signal, thereby recording the detection position with high precision;

(3.6) Back off for a certain distance along the opposite direction of detection, and repeat the steps (3.2) to (3.5) until all detection points are completely detected.

Preferably, the automatic classification specifically includes the following processing procedures:

(a) moving to a position substantially close to the center of said target object;

(b) The probe moves to the left until the detection signal is obtained, and the position of the left edge is recorded;

(c) the X-axis of the numerical control system returns to the detection starting point;

(d) the probe moves to the right until the detection signal is obtained, and the position of the right edge is recorded;

(e) Calculate the center coordinate X according to the left edge position and the right edge position;

(f) The X-axis moves to the central coordinate X, and moves upward until the detection signal is obtained, and the position of the upper edge is recorded;

(g) the Y-axis of the numerical control system returns to the detection starting point;

(h) The probe moves downward until a detection signal is obtained, and the position of the lower edge is recorded;

(i) Calculate the center coordinate Y according to the position of the upper edge and the position of the lower edge;

(j) The X-axis and Y-axis of the numerical control system move to the center coordinates (X, Y) to complete the automatic centering process.

The main feature of the device for realizing the automatic detection and processing of probes is that the device includes:

a processor configured to execute computer-executable instructions;

The memory stores one or more computer-executable instructions, and when the computer-executable instructions are executed by the processor, each step of the above-mentioned method for realizing the automatic detection and processing of the probe is realized.

The main feature of the processor for automatic detection and processing of probes is that the processor is configured to execute computer-executable instructions, and when the computer-executable instructions are executed by the processor, the above-mentioned Each step of the method for realizing the automatic detection and processing of the probe described above.

The main feature of the computer-readable storage medium is that a computer program is stored thereon, and the computer program can be executed by a processor to realize each step of the above-mentioned method for realizing automatic probe detection and processing.

Compared with the vision scheme, the method, device, processor and computer-readable storage medium for realizing the automatic detection and processing of probes of the present invention have no requirement for illumination and measurement environment, and the contour can be obtained stably in any environment ; At the same time, the precision is high, using the encoder latch technology and the high-sensitivity probe, the contour accuracy obtained is much higher than the accuracy that can be achieved by vision, which can reach 0.01mm, and the vision can reach 0.01mm under the large field of view (800mm) required by the ceramic basin. *600mm), which is far below the accuracy of probe measurement; in addition, it can also measure irregular shapes of arbitrary shapes, and can automatically generate detection paths of arbitrary shapes, which are suitable for ceramic basins of any shape and can be stably The inner contour of the ceramic basin is detected. Moreover, the height change has little influence on the contour recognition. If the ceramic basin is placed unevenly and the height changes, the inner contour of the ceramic basin can still be stably obtained by using the probe to detect the contour, which has good applicability.

Description of drawings

Fig. 1 is a schematic diagram of detection contour generation in the present invention.

Fig. 2 is a schematic diagram of the operation interface for contour detection in the present invention.

Fig. 3 is a flow chart of the automatic centering process of the present invention.

Fig. 4 is a flowchart of automatic detection processing in the present invention.

Detailed ways

In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

Before describing in detail embodiments according to the present invention, it should be noted that, hereinafter, the terms "comprises", "comprises" or any other variant thereof are intended to cover a non-exclusive inclusion, thereby enabling the process of including a series of elements A method, article, or device includes not only these elements, but also other elements not expressly listed, or inherent to such a process, method, article, or apparatus.

The method for realizing automatic detection and processing of probes, wherein the method includes the following steps:

(1) Install the probe on the Z-axis support of the numerical control system, and control the ejection and retraction of the probe through the cylinder;

(2) According to the detection point generation strategy, the detection path is generated along the processing direction;

(3) Perform automatic detection processing according to the generated detection path, and obtain the coordinates of the edge of the target object;

(4) The contour of the target object recognized by automatic detection is automatically generated through the contour automatic fitting algorithm, combined with the preset processing strategy in the numerical control system, to automatically generate a file directly used for machining by the numerical control system.

As a preferred embodiment of the present invention, described step (1) is specifically:

Install the probe on the Z-axis support of the numerical control system, the numerical control system can control the movement of the detection device, the detection device is provided with a cylinder, and the cylinder is used to control the ejection and retraction of the probe , and the probe is higher than the cutting head in retracted state, and lower than the cutting head in ejected state.

Please refer to shown in Figure 1, as a preferred embodiment of the present invention, described step (2) specifically includes the following steps:

(2.1) Based on the standard drawing size, according to the detection point generation strategy, along the processing direction, generate detection end points on the standard graphics at a certain interval;

(2.2) According to the detection end point, calculate the corresponding detection starting point within the safety distance in the normal direction;

(2.3) connecting the detection starting point and the detection end point to obtain the detection direction;

(2.4) Use the CAM software to load the standard target object drawing, select the target object graphic, and click Generate Probing NC to generate the corresponding probing path.

Please refer to shown in Figure 4, as a preferred embodiment of the present invention, described step (3) specifically includes the following steps:

(3.1) The probe is ejected, and the detection device is set at a preset position to detect a starting height;

(3.2) performing automatic centering processing to obtain the center position of the target object;

(3.3) Perform automatic detection according to the generated detection path;

(3.4) moving to the detection starting point, and performing detection along the detection direction;

(3.5) The detection device uses an encoder to latch the obtained detection signal, thereby recording the detection position with high precision;

(3.6) Back off for a certain distance along the opposite direction of detection, and repeat the steps (3.2) to (3.5) until all detection points are completely detected.

Please refer to shown in Figure 3, as a preferred embodiment of the present invention, described automatic classification specifically includes the following process:

(a) moving to a position substantially close to the center of said target object;

(b) The probe moves to the left until the detection signal is obtained, and the position of the left edge is recorded;

(c) the X-axis of the numerical control system returns to the detection starting point;

(d) the probe moves to the right until the detection signal is obtained, and the position of the right edge is recorded;

(e) Calculate the center coordinate X according to the left edge position and the right edge position;

(f) The X-axis moves to the central coordinate X, and moves upward until the detection signal is obtained, and the position of the upper edge is recorded;

(g) the Y-axis of the numerical control system returns to the detection starting point;

(h) The probe moves downward until a detection signal is obtained, and the position of the lower edge is recorded;

(i) Calculate the center coordinate Y according to the position of the upper edge and the position of the lower edge;

(j) The X-axis and Y-axis of the numerical control system move to the center coordinates (X, Y) to complete the automatic centering process.

In the actual application, the device used in the present invention (the probe and the probe cylinder are on the Z axis, the cylinder controls the probe ejection, and the Z axis controls the probe movement), which meets the requirements of automatic control and can realize multi-station, multi- Probing of inside contours of ceramic pots to size and automated process for cutting pots and panels.

The detection path generation method used in the present invention can realize the measurement of the inner contour of multi-standard ceramic pots, wherein the target object is not limited to ceramic pots, and other similar objects with contours can also be applied to the present invention. detection method.

The detection method used in the present invention can obtain the inner contour of the ceramic basin with high precision.

In the present invention, a specific contour automatic fitting algorithm is adopted for the continuous and closed contour lines identified by detection, combined with the preset processing strategies in the numerical control system (starting point inclined lifting knife punching, groove, leading knife line, etc.), automatic Generate files that can be directly used for CNC system processing.

The invention controls the movement of the cylinder and the probe through the numerical control machine tool, uses "detection contour generation" to generate the detection path, the numerical control system controls the probe to perform detection according to the detection path, and obtains the inner wall contour of the ceramic basin, combined with a specific automatic fitting algorithm, can realize Multi-station, multi-specification ceramic pot inner contour detection and automatic process for cutting ceramic pots and panels.

In practical applications, the probe is installed on the Z-axis support of the CNC system, and the CNC system can control the movement of the detection device. There is a cylinder on the detection device, and the ejection and retraction of the probe are controlled by the cylinder. In the retracted state, the probe is higher than the cutting head. In the pop-up state, the probe is lower than the cutting head, preventing the detection device from affecting the processing during processing, and the cutting head from affecting the detection during detection.

The ceramic basin will be deformed to varying degrees during the sintering process, and it is difficult to manufacture a ceramic basin of a standard size. When generating a path, you can refer to the standard size of the ceramic basin to generate a detection path. In order to support the contours of ceramic pots of different shapes and sizes, a detection path generation method is provided. The detection path generation method includes the following steps:

Based on the standard drawing size, according to the detection point generation strategy, along the processing direction, the detection end point is generated on the standard drawing at a certain interval.

Calculate the detection start point corresponding to the safety distance in the normal direction according to the detection end point.

Connect the detection start point and the detection end point to obtain the detection direction.

Please refer to Figure 1. NCEditor is used when generating the detection path. NCEditor is a CAM software developed by our company, which supports the import of toolpath files in G, NC, DXF, ENG, PLT and other formats. You can also manually draw the toolpath in NCEditor document. Load the standard ceramic basin drawing, select the ceramic basin graphic, click Generate Detection Data to generate the detection path, and the detection path will be displayed in NCEditor for users to preview the effect of the detection path. Click Export Probing Data to save the probing path data to a file for use by the probe probing function in the CNC.

Policy parameter description:

The distance between positions close to the inflection point is set to be relatively low, which can better ensure the integrity of the details at the corner, while the range of change in the middle of the segment is very stable, increasing the distance to improve detection efficiency. There are different generation strategies for straight lines, arcs, and small segments, ensuring that the desired effect can be adjusted in all cases.

Based on the generated probing path, automatic probing is performed to obtain the coordinates of the edge of the ceramic basin.

Please refer to Figure 2, the automatic detection method includes the following steps:

1. Pop out the probe.

2. Set the detection starting height at a suitable position. Generally, it is best to lower the probe head 3mm from the highest position of the basin.

3. Perform automatic centering to obtain the center position of the ceramic basin.

4. Perform automatic detection according to the generated detection path.

5. Move to the detection starting point, perform detection along the detection direction, use the encoder to latch, and record the detection position with high precision.

6. Back off for a certain distance along the opposite direction of detection.

7. Repeat steps 3-6 until all points are detected.

The contour detected by automatic detection is automatically generated through the automatic contour fitting algorithm, combined with the preset machining strategy in the CNC system (starting point tilted knife lifting punching, beveling, leading line, etc.), which can be directly used in CNC system processing used files.

In practical application, the numerical control system software involved in the present invention includes but not limited to the following functions:

Control the ejection and retraction of the detection cylinder, and control the movement of the probe;

Support automatic generation of detection path;

Support automatic centering;

Support automatic detection of the inner wall contour of the ceramic basin;

Support the function of automatically fitting contour lines to generate files that can be used for direct processing;

Support dual-station detection and cutting of ceramic pots;

It supports the integrated automatic cutting function of ceramic pots and countertops.

In a specific embodiment of the present invention, this technical solution can carry out the following processing:

1. The probe is installed on the Z-axis support of the CNC machine tool and moves with the CNC machine tool. The cylinder can control the ejection and retraction of the probe, and the whole moves with the CNC machine tool;

2. Automatically generate detection paths according to standard drawings;

3. Perform automatic detection according to the detection path;

4. Perform fitting according to the automatic detection results to obtain a machinable tool path;

5. Process ceramic basins and countertops.

The device for realizing automatic detection and processing of probes, wherein the device includes:

a processor configured to execute computer-executable instructions;

The memory stores one or more computer-executable instructions, and when the computer-executable instructions are executed by the processor, each step of the above-mentioned method for realizing the automatic detection and processing of the probe is realized.

The processor for realizing automatic probe detection processing, wherein the processor is configured to execute computer-executable instructions, and when the computer-executable instructions are executed by the processor, the above-mentioned implementations are realized The probes automatically probe various steps of the method of processing.

In the computer-readable storage medium, a computer program is stored thereon, and the computer program can be executed by a processor to implement each step of the above-mentioned method for realizing automatic probe detection and processing.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the above-described embodiments, various steps or methods may be implemented by software or firmware stored in a memory and executed by a suitable instruction execution device.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed , including one or a combination of the steps of the method embodiment.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

In the description of this specification, descriptions referring to the terms "an embodiment", "some embodiments", "example", "specific example", or "embodiment" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Compared with the vision scheme, the method, device, processor and computer-readable storage medium for realizing the automatic detection and processing of probes of the present invention have no requirement for illumination and measurement environment, and the contour can be obtained stably in any environment ; At the same time, the precision is high, using the encoder latch technology and the high-sensitivity probe, the contour accuracy obtained is much higher than the accuracy that can be achieved by vision, which can reach 0.01mm, and the vision can reach 0.01mm under the large field of view (800mm) required by the ceramic basin. *600mm), which is far below the accuracy of probe measurement; in addition, it can also measure irregular shapes of arbitrary shapes, and can automatically generate detection paths of arbitrary shapes, which are suitable for ceramic basins of any shape and can be stably The inner contour of the ceramic basin is detected. Moreover, the height change has little influence on the contour recognition. If the ceramic basin is placed unevenly and the height changes, the inner contour of the ceramic basin can still be stably obtained by using the probe to detect the contour, which has good applicability.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims (8)

1. A method for realizing automatic detection processing of a probe is characterized by comprising the following steps:

(1) Installing a probe on a Z-axis bracket of a numerical control system, and controlling the probe to pop up and retract through an air cylinder;

(2) Generating a detection path along the processing direction according to a detection point generation strategy;

(3) Executing automatic detection processing according to the generated detection path, and acquiring coordinates of the edge of the target object;

(4) And automatically generating a file directly used for processing the numerical control system by automatically detecting and recognizing the contour of the target object through a contour automatic fitting algorithm and combining a preset processing strategy in the numerical control system.

2. The method for realizing the automatic detection processing of the probe according to claim 1, wherein the step (1) is specifically as follows:

the probe is arranged on a Z-axis support of a numerical control system, the numerical control system can control a detection device to move, an air cylinder is arranged on the detection device and used for controlling the ejection and the retraction of the probe, and the probe is higher than the cutting head in the retraction state and lower than the cutting head in the ejection state.

3. The method for realizing the automatic probe detection processing according to claim 2, wherein the step (2) comprises the following steps:

(2.1) generating a detection end point on the standard graph at certain intervals along the processing direction according to a detection point generation strategy by taking the size of a standard drawing as a basis;

(2.2) calculating a corresponding detection starting point in the safety distance in the normal direction according to the detection end point;

(2.3) connecting the detection starting point with the detection end point to obtain a detection direction;

and (2.4) loading a standard target object drawing by utilizing CAM software, selecting a target object graph, clicking to generate a detection numerical control, and generating a corresponding detection path.

4. The method for realizing the automatic detection processing of the probe according to claim 3, wherein the step (3) specifically comprises the following steps:

(3.1) popping up a probe, wherein the detection device is provided with a detection starting height at a preset position;

(3.2) performing an automatic centering process to acquire a center position of the target object;

(3.3) performing automatic probing according to the generated probing path;

(3.4) moving to said detection start point, performing detection in said detection direction;

(3.5) the detection device latches the acquired detection signal by using an encoder, so that the detection position is recorded with high precision;

and (3.6) backing a certain distance in the opposite detection direction, and repeatedly executing the steps (3.2) to (3.5) until all detection points are completely detected.

5. The method for realizing the automatic detection processing of the probe according to claim 4, wherein the automatic centering specifically comprises the following processing procedures:

(a) Moving to a position approximately near the center of the target object;

(b) The probe moves leftwards until a detection signal is obtained, and the position of the lower left edge is recorded;

(c) The X axis of the numerical control system retreats to the detection starting point;

(d) The probe moves rightwards until a detection signal is acquired, and the position of the right edge is recorded;

(e) Calculating a central coordinate X according to the left edge position and the right edge position;

(f) The X axis moves to a central coordinate X and moves upwards until a detection signal is obtained, and the position of an upper edge is recorded;

(g) The Y axis of the numerical control system retreats to the detection starting point;

(h) The probe moves downwards until a detection signal is obtained, and the position of the lower edge is recorded;

(i) Calculating a center coordinate Y according to the upper edge position and the lower edge position;

(j) And the X axis and the Y axis of the numerical control system move to the central coordinates (X, Y) to complete automatic centering processing.

6. An apparatus for realizing automatic probe detection processing is characterized in that the apparatus comprises:

a processor configured to execute computer-executable instructions;

a memory storing one or more computer-executable instructions that, when executed by the processor, perform the steps of the method of performing a probe automated probing process of any of claims 1 to 5.

7. A processor for performing an automated probe detection process, the processor being configured to execute computer-executable instructions which, when executed by the processor, perform the steps of the method of performing an automated probe detection process of any one of claims 1 to 5.

8. A computer-readable storage medium, on which a computer program is stored which is executable by a processor for carrying out the steps of the method of carrying out an automated probing process with a probe according to any of claims 1 to 5.

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