CN110919392B - Multi-Y-axis automatic machining system and control method - Google Patents

Multi-Y-axis automatic machining system and control method Download PDF

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Publication number
CN110919392B
CN110919392B CN201911230977.1A CN201911230977A CN110919392B CN 110919392 B CN110919392 B CN 110919392B CN 201911230977 A CN201911230977 A CN 201911230977A CN 110919392 B CN110919392 B CN 110919392B
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workpiece
axis
current
axis structure
detected
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CN110919392A (en
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万章
朱旺
杨撷成
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Shanghai Friendess Electronic Technology Co ltd
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Shanghai Friendess Electronic Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q15/00Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/54Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles

Abstract

The invention provides a multi-Y-axis automatic processing system and a control method, wherein the system comprises: the X-axis structure is connected with a cutting head and used for driving the cutting head to move along the X axis, each Y-axis structure is provided with a workpiece table, and the Y-axis structure is used for driving the workpiece table on the Y-axis structure to drive a workpiece to move along the Y axis; the workpiece table of each Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis. The invention can realize the alternate processing of workpieces on workpiece tables with different Y-axis structures, the processing and cutting of any workpiece can not conflict with the feeding and discharging of other workpieces, the Y-axis structures are not affected with each other, the parallel flow of the axes is realized, and compared with the mode of only adopting one Y-axis structure, the invention can conveniently improve the efficiency.

Description

Multi-Y-axis automatic machining system and control method
Technical Field
The invention relates to the field of machine tool machining, in particular to a multi-Y-axis automatic machining system and a control method.
Background
In a cutting machine, a workpiece to be machined is cut and machined by a cutting head, which may be, for example, a laser cutting head, a water cutting head, or the like.
In the related art, the cutting head can move along the X-axis direction under the driving of the X-axis structure, and the workpiece can move along the Y-axis direction under the driving of the Y-axis structure, so that the cutting of the required pattern is realized under the matching of the X-axis structure and the Y-axis structure.
However, each time loading and unloading are performed, the machine tool is not in a machining state, is in an idle state, and has to be monitored by personnel on the side. Therefore, the processing mode has low efficiency and is easy to waste labor cost.
Disclosure of Invention
The invention provides a multi-Y-axis automatic processing system and a control method, which aim to solve the problems of low efficiency and easy waste of labor cost.
According to a first aspect of the present invention, there is provided a multi-Y-axis automated processing system, comprising: the cutting machine comprises an X-axis structure, at least two parallel Y-axis structures and a control assembly, wherein the X-axis structure is used for driving the cutting head to move along an X axis, each Y-axis structure is provided with a workpiece table, and the Y-axis structures are used for driving the workpiece tables thereon to drive workpieces to move along a Y axis; each workpiece table of the Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis;
for any one of the current Y-axis configurations, the control component is to:
when the current workpiece to be machined on the current Y-axis structure workpiece table is detected to move to the working point and no other workpiece is machined currently, switching current technological parameters to technological parameters corresponding to the current Y-axis structure; the process parameters comprise cutting height data, interpolation data and screw pitch data; aiming at the same cutting track requirement, different Y-axis structures correspond to different process parameters;
and controlling the X-axis structure to drive the cutting head to move along the X axis and controlling the current Y-axis structure to drive the current workpiece to be processed to move along the Y axis according to the current technological parameters so as to process the current workpiece to be processed and obtain a corresponding current processed workpiece.
Optionally, the system further includes an external PLC device; each Y-axis structure is internally provided with a vacuum suction assembly;
for the current Y-axis configuration, the external PLC device is configured to:
conveying the current workpiece to be processed to a position to be loaded;
when a feeding notice sent by the control assembly is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure;
for the current Y-axis configuration, the control component is further to:
controlling the workpiece table of the current Y-axis structure to move to the feeding point;
controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending the feeding notice to the external PLC device;
when the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure, controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
and after the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure, controlling the workpiece table of the current Y-axis structure to move to the working point.
Optionally, for the current Y-axis structure, the external PLC device is further configured to:
when a blanking notice is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, taking down the currently processed workpiece from the workpiece table of the current Y-axis structure;
for the current Y-axis configuration, the control component is further to:
after the currently processed workpiece is obtained, controlling the workpiece table of the current Y-axis structure to move to the blanking point;
and controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a blanking notice to the external PLC device.
Optionally, the control component is further configured to: if any one of the following abnormal events is detected, generating a corresponding warning signal;
aiming at any one vacuum suction assembly with a Y-axis structure, after controlling the vacuum suction assembly to generate vacuum pressure for a first preset time, the corresponding vacuum pressure is still not detected;
aiming at any one vacuum suction assembly with a Y-axis structure, after a second preset time length after the vacuum suction assembly is controlled not to generate vacuum pressure, the corresponding vacuum pressure can still be detected;
for any Y-axis structure, after sending out a third preset time length of the feeding notification, it is still not detected that the current workpiece to be machined is sent to the workpiece table;
and aiming at any one Y-axis structure, after the fourth preset time length of the blanking notice is sent out, the workpiece still in the workpiece table after the current machining can be detected.
Optionally, the system further includes a visual positioning device, configured to acquire a real-time image corresponding to one or more Y-axis structures, and determine whether the workpiece is located at a cutting start position according to the mark points identified in the real-time image and the visual parameters calibrated in advance for each Y-axis structure; the visual parameters are used for representing the display mode of the workpiece and/or the marking points of the workpiece in the corresponding real-time images when the workpiece accurately moves to the cutting starting point position, wherein different Y-axis structures correspond to different visual parameters.
According to a second aspect of the present invention, there is provided a control method for multi-Y-axis automatic processing, which is applied to a control module in a multi-Y-axis automatic processing system, and further includes: the X-axis structure is connected with and used for driving the cutting head to move along the X axis, each Y-axis structure is provided with a workpiece table, and the Y-axis structure is used for driving the workpiece table thereon to drive a workpiece to move along the Y axis; each workpiece table of the Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis;
the method comprises the following steps:
for any one current Y-axis structure, when a current workpiece to be machined on a workpiece table of the current Y-axis structure is detected to move to the working point and no other workpiece is machined currently, switching current technological parameters into technological parameters of the current Y-axis structure, wherein the technological parameters comprise cutting height data, interpolation data and thread pitch data; aiming at the same cutting track requirement, different Y-axis structures correspond to different process parameters;
and controlling the X-axis structure to drive the cutting head to move along the X axis and controlling the current Y-axis structure to drive the current workpiece to be processed to move along the Y axis according to the current technological parameters so as to process the current workpiece to be processed and obtain a corresponding current processed workpiece.
Optionally, before the current workpiece to be processed on the current Y-axis structural workpiece stage is detected to move to the working point, the method further includes:
controlling the workpiece table of the current Y-axis structure to move to the feeding point;
controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a feeding notice to an external PLC device so that: when the external PLC device receives the feeding notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure;
when the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure, controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
and after the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure, controlling the workpiece table of the current Y-axis structure to move to the working point.
Optionally, the method further includes:
after the currently processed workpiece is obtained, controlling the workpiece table of the current Y-axis structure to move to the blanking point;
and controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a blanking notice to the external PLC device, so that the external PLC device takes down the currently processed workpiece from the workpiece table of the current Y-axis structure when receiving the blanking notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure.
Optionally, the method further includes:
if any one of the following abnormal events is detected, generating a corresponding warning signal;
aiming at any one vacuum suction assembly with a Y-axis structure, after controlling the vacuum suction assembly to generate vacuum pressure for a first preset time, the corresponding vacuum pressure is still not detected;
aiming at any one vacuum suction assembly with a Y-axis structure, after a second preset time length after the vacuum suction assembly is controlled not to generate vacuum pressure, the corresponding vacuum pressure can still be detected;
for any Y-axis structure, after sending out a third preset time length of the feeding notification, it is still not detected that the current workpiece to be machined is sent to the workpiece table;
and aiming at any one Y-axis structure, after the fourth preset time length of the blanking notice is sent out, the workpiece still in the workpiece table after the current machining can be detected.
Optionally, the method further includes:
acquiring real-time images corresponding to one or more Y-axis structures by using a visual positioning device, and determining whether a workpiece is positioned at a cutting starting point or not according to the mark points identified in the real-time images and visual parameters calibrated in advance by each Y-axis structure; the visual parameters are used for representing the display mode of the workpiece and/or the marking points of the workpiece in the corresponding real-time images when the workpiece accurately moves to the cutting starting point position, wherein different Y-axis structures correspond to different visual parameters.
The invention provides a multi-Y-axis automatic processing system and a control method, wherein at least two Y-axis structures are adopted, wherein a current workpiece to be processed on a current Y-axis structure workpiece table can move to a working point, no other workpiece is processed at present, further, the workpiece on different Y-axis structure workpiece tables can be processed in turn, the processing and cutting of any workpiece cannot conflict with the feeding and discharging of other workpieces, all the Y-axis structures do not influence each other, and the parallel flow of axes is realized, so that a foundation is provided for simultaneously carrying out the cutting of the workpiece on one Y-axis structure and the feeding and discharging of the workpiece on the other Y-axis structures, compared with a mode of only adopting one Y-axis structure, the multi-Y-axis automatic processing system and the control method can be conveniently improved in efficiency, and simultaneously, because the processes of detection, movement, vacuum pumping, vacuum breaking and the like in the process can be triggered and realized in an automatic mode, human intervention is not needed, and the labor cost is saved.
In addition, the invention also finds that even for the same cutting track requirement, due to the deviation of the installation position (such as height) of the workpiece table, errors generated in the manufacturing and assembling process of components (such as transmission components) and the like, for different Y-axis structures, if the position of the cutting head along the X axis is only changed and the same process parameters (such as cutting height, screw pitch data and interpolation data) are adopted, the problems of deviation of the processing track, reduction of precision and the like are easily caused, and the cutting effect is not ideal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a first schematic diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention;
FIG. 3 is a third exemplary diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention;
FIG. 4 is a fourth exemplary configuration of a control system for multi-Y-axis automated processing according to an embodiment of the present invention;
FIG. 5 is a first flowchart illustrating a method for controlling multi-Y-axis automatic processing according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating the reset operation according to an embodiment of the present invention;
FIG. 7 is a second flowchart illustrating a method for controlling the multi-Y-axis automatic processing according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating the loading workflow in an embodiment of the present invention;
FIG. 9 is a third flowchart illustrating a method for controlling the multi-Y-axis automatic processing according to an embodiment of the present invention;
fig. 10 is a schematic view of a work flow of blanking according to an embodiment of the present invention;
FIG. 11 is a schematic workflow diagram of a single Y-axis configuration in a specific example of an embodiment of the invention;
FIG. 12 is a schematic workflow diagram of two Y-axis configurations in a specific example of an embodiment of the invention;
FIG. 13 is a schematic view of a workflow of visual positioning in a specific example of an embodiment of the invention;
fig. 14 is a schematic structural diagram of a control assembly according to an embodiment of the present invention.
Description of reference numerals:
101-X axis configuration;
102-a cutting head;
103-Y axis configuration;
104-a control component;
105-an external PLC device;
106-a vacuum suction assembly;
107-visual positioning means.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
FIG. 1 is a first schematic diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention; FIG. 2 is a second schematic diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention; FIG. 3 is a third exemplary diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention; fig. 4 is a fourth schematic structural diagram of a control system for multi-Y-axis automated processing according to an embodiment of the present invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present embodiment provides a multi-Y-axis automatic processing system, including: an X-axis structure 101, at least two Y-axis structures 103 parallel to each other, and a control assembly 104, wherein the X-axis structure 101 is used for driving the cutting head to move along an X axis.
Wherein the movement of the cutting head 102 along the X-axis may be generated by a control assembly 104, including movement during cutting, movement to move the cutting head 102 to the corresponding Y-axis structure 103 for cutting, and possibly movement for repositioning. At the same time, the present embodiment does not preclude the cutting head 102 from being controlled for movement along the X-axis for other reasons.
The cutting head may be mounted to a Z-axis structure that is operably connected to the X-axis structure 101. it can be seen that the X-axis structure 101 may drive the cutting head along the X-axis via the Z-axis structure, which may drive the cutting head along the Z-axis (i.e., vertical).
The number of the Y-axis structures 103 may be two as shown in fig. 1 and 3, three as shown in fig. 2, or any number larger than three, and further, the at least two Y-axis structures 103 may be distributed along the X-axis direction.
Each Y-axis structure 103 is provided with a workpiece table, and the Y-axis structure is used for driving the workpiece table thereon to drive a workpiece to move along a Y axis; the workpiece table of each Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis.
With respect to the workpiece therein, a workpiece before machining and cutting are not started may be understood as a workpiece to be machined, a workpiece at the time of machining and cutting may be understood as a workpiece in machining, and a workpiece obtained after machining and cutting may be understood as a workpiece after machining.
The loading point is a position point for loading in each moving position of the workpiece table, namely: when the workpiece table moves to the corresponding position point, feeding can be carried out, and meanwhile, the workpiece can be fed to the workpiece table at the feeding point, and at the moment, the workpiece can be understood to be at the feeding point.
The working point is a position point suitable for starting to perform cutting machining in each moving position of the workpiece table, namely: when the workpiece table moves to the corresponding position point, the cutting processing can be started, and meanwhile, the workpiece can move to the working point along with the workpiece table, and at the moment, the workpiece can be understood to be at the working point.
The blanking point is a position point for implementing blanking in each moving position of the workpiece table, namely: when the workpiece table moves to the corresponding position point, blanking can be carried out, and meanwhile, since the workpiece can be blanked from the blanking point, the workpiece can be understood to be positioned at the blanking point.
The visible point, the feeding point, the working point and the discharging point can be used for describing the position of the workpiece table and can also be used for describing the position of a workpiece on the workpiece table.
The cutting head is understood to be any structure capable of realizing cutting, such as a laser cutting head, a water cutting head and the like.
The X-axis structure is understood to be any structure capable of driving the cutting head to move, and may include a corresponding ball screw pair, for example, so as to drive the cutting head.
The Y-axis structure is understood to be any structure capable of driving the workpiece stage to move, and may include, for example, a corresponding ball screw pair, a guide rail, and the like, so as to drive the cutting head. And a vacuum detection component for detecting whether the suction port of the vacuum absorption component generates vacuum pressure or not, wherein the suction port can be arranged on the corresponding workpiece table.
In one embodiment, the system may further include an external PLC device 105 for loading and unloading the workpiece, and the external PLC device 105 may be in interactive communication with the control component 104, for example, in a wired or wireless manner, so as to meet the later interactive requirements on loading and unloading.
The PLC, specifically, the Programmable Logic Controller, can be understood as a Programmable Logic Controller, and any existing or improved PLC program programming and execution manner can be applied to the embodiment to implement the functions of the external PLC device, without departing from the description of the embodiment.
In one embodiment, the system may further include a visual positioning device 107 for positioning the moving position of the workpiece, and the visual positioning device 107 may be in interactive communication with the control assembly 104, for example, in a wired or wireless manner, so as to meet the following interactive requirements regarding workpiece positioning.
The visual positioning device 107 may be any device that collects an image first and then performs positioning based on an object or a mark point in the image, and any existing or improved positioning means may be applied to the embodiment to implement the functions of the visual positioning device 107, without departing from the description of the embodiment.
In one embodiment, the system further includes a vacuum suction assembly 106 for sucking the workpiece on the workpiece table when the vacuum pressure is generated, wherein the vacuum suction assembly may include a suction port disposed on the workpiece table, and a related pipeline and a component for generating a vacuum suction acting force at the suction port, and any pipeline and component for generating a vacuum suction acting force, i.e., a vacuum pressure at the suction port may be applied to the embodiment without departing from the description of the embodiment.
In the following description of the embodiments, a control method of multi-Y-axis automated processing is provided, based on which detailed descriptions of specific functions of a control component, an external PLC device, and a visual positioning device in the above control system of multi-Y-axis automated processing can be made. Meanwhile, the control method may be applied to the above control unit 104, that is, it may be understood as a specific function of the control unit 104.
Fig. 5 is a first flowchart illustrating a control method for multi-Y-axis automatic processing according to an embodiment of the present invention.
Referring to fig. 5, the method for controlling the multi-Y-axis automatic processing may include, for any one of the current Y-axis structures:
s201: whether the current workpiece to be machined on the current Y-axis structure workpiece table is detected to move to the working point or not;
if the determination result in step S201 is yes, step S202 may be implemented: whether no other workpieces are currently being processed;
if the determination result in step S202 is no, step S203 may be implemented: switching the current process parameters to the process parameters of the current Y-axis structure;
after step S203, step S204 may be implemented: and controlling the X-axis structure to drive the cutting head and controlling the current Y-axis structure to drive the current workpiece to be machined according to the current technological parameters so as to machine the current workpiece to be machined and obtain a corresponding current machined workpiece.
Correspondingly, for any one of the current Y-axis configurations, the control component may be understood to be for:
when the current workpiece to be machined on the current Y-axis structure workpiece table is detected to move to the working point and no other workpiece is machined currently, switching current process parameters into interpolation data and pitch data corresponding to the current Y-axis structure;
and controlling the X-axis structure to drive the cutting head and controlling the current Y-axis structure to drive the current workpiece to be machined according to the current technological parameters so as to machine the current workpiece to be machined and obtain a corresponding current machined workpiece.
In the above embodiment, it is necessary to determine whether there is no other workpiece to be machined currently, which indicates that machining and cutting between different Y-axis structures are performed in turn, and further, the machining and cutting of any one workpiece does not conflict with the feeding and discharging of other workpieces, so that a basis is provided for simultaneously performing the cutting of a workpiece on one Y-axis structure and the feeding and discharging of workpieces on other Y-axis structures, and compared with a mode that only one Y-axis structure is adopted, the above embodiment can facilitate the improvement of efficiency.
The process parameters may include, for example, interpolation data, pitch data, and cutting height.
The interpolation data may be interpolated data for realizing the cutting of the required cutting pattern during the machining and cutting process, and specifically may include data for driving the cutting head to move by the X-axis structure and data for driving the workpiece stage to move by the Y-axis structure. Any data generated by the machine tool to achieve the data point densification may be understood as the interpolation data.
The pitch data may further be pitch compensation data, and a transmission component such as a lead screw may be used to drive the linear movement of the workpiece table and the linear movement of the cutting head during the machining and cutting process, wherein the pitch is related to the process of driving the movement (such as moving speed, acceleration, etc.).
However, for the transmission components such as the nut, the ball and the screw, there may be a certain error in the manufacturing and assembling processes, and further, since different Y-axis structures are used in the present solution, the same pitch data (or pitch compensation data) may cause deviation of the final cutting result.
Therefore, in the present embodiment, the pitch data and the interpolation data need to be switched, that is, different Y-axis structures correspond to different interpolation data and different pitch data for the same cutting track requirement.
The cutting height data can be understood as data representing the height difference between the cutting head and the workpiece in processing, and particularly can refer to the variation data of the cutting height in the cutting process. Wherein, the height between cutting head and the work piece needs increase and decrease according to cutting material thickness, and the material of different thickness can use different height data.
However, since the heights of the work tables with different Y-axis structures are difficult to ensure to be completely consistent, and the cutting heights are also inconsistent, the cutting heights need to be switched in the embodiment, that is, different Y-axis structures correspond to different cutting heights according to the same requirement of the cutting track. Meanwhile, the cutting height data can follow the file, and after the determination, the data can exist every time the file is opened.
Furthermore, based on the cutting height data, the interpolation data and the pitch data, in the present embodiment, different Y-axis structures correspond to different process parameters for the same cutting track requirement.
The requirement of the same cutting track can be understood as the requirement of cutting the same track for the same material.
It can be seen that, in the case of using at least two Y-axis structures, even for the same cutting track requirement, due to the deviation of the mounting position (e.g. height) of the workpiece table, the error generated in the manufacturing and assembling process of the component (e.g. transmission component), and the like, if the same process parameters (e.g. cutting height, pitch data and interpolation data) are adopted only by changing the position of the cutting head along the X-axis for different Y-axis structures, the problems of deviation of the processing track, reduction of precision, and the like are easily caused, and the cutting effect is not ideal.
Therefore, the above embodiment configures different process parameters for different Y-axis structures, thereby avoiding deviation caused by adopting the same process parameters, improving the processing accuracy and precision, and ensuring the consistency of the cutting effects of different Y-axis structures.
The current Y-axis structure is any one of Y-axis structures in multi-axis alternate cutting machining, namely, if each Y-axis structure needs to be cut and machined, the process needs to be implemented. Meanwhile, the above steps S201 to S204 are only part of the steps extracted in the whole processing flow of the multi-axis operation, and other flows are further described below one by one.
Fig. 6 is a schematic diagram of a reset operation flow in an embodiment of the present invention.
Before the external PLC device, the X-axis structure, and the Y-axis structure are used, the reset operation is required, and a specific example of the reset operation is shown in fig. 6.
In a specific example, the external PLC device may be reset, and then all axes (including the X-axis structure and all Y-axis structures) of the system may be returned to the original point.
When the system (except the part of the external PLC device) is in an idle state, the control assembly can give a 'safety reset' signal to the external PLC device, for example, the control assembly can generate and send the safety reset signal to the external PLC device, when the safety reset signal is effective, the control assembly can wait for the reset of the external PLC device, after the reset of the external PLC device is completed, the control assembly can give a signal reaching a safety region, and after the control assembly receives the signal, the reset of each shaft can be realized, for example, the control system (for example, each shaft) returns to an original point.
Therefore, the purpose of the safety reset signal and the signal reaching the safety area is that the control assembly judges whether the external PLC device is reset or not, and after the external PLC device is reset, each shaft, the control assembly and the like are reset.
FIG. 7 is a second flowchart illustrating a method for controlling the multi-Y-axis automatic processing according to an embodiment of the present invention; fig. 8 is a schematic diagram of the work flow of loading in the specific example of the embodiment of the present invention.
In one embodiment, before step S201, for any one current Y-axis structure, the method may further include:
s205: controlling the workpiece table of the current Y-axis structure to move to the feeding point;
s206: controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure;
s207: sending a material loading notification to an external PLC device such that: and when the external PLC device receives the feeding notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure.
S208: whether the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure or not;
if the determination result in step S208 is yes, step S209 may be implemented: controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
s210: whether the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure;
if the determination result in step S210 is yes, step S211 may be implemented: and controlling the workpiece table of the current Y-axis structure to move to the working point.
Correspondingly, for the current Y-axis configuration, the external PLC device is configured to:
conveying the current workpiece to be processed to a position to be loaded;
when a feeding notice sent by the control assembly is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure;
for the current Y-axis configuration, the control component is further to:
controlling the workpiece table of the current Y-axis structure to move to the feeding point;
controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending the feeding notice to the external PLC device;
when the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure, controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
and after the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure, controlling the workpiece table of the current Y-axis structure to move to the working point.
In a specific example, with reference to fig. 7 and fig. 8, the specific process of step S206 may be specifically understood as opening "vacuum break" for the vacuum suction assembly, and then opening "vacuum break" first after the workpiece stage of the current Y-axis structure enters the loading point, and after opening, waiting for the release of vacuum pressure, and after the release of vacuum pressure is completed, the absence of vacuum pressure may be detected, wherein the absence of vacuum pressure may be detected because the vacuum pressure may cause that the material cannot be placed at the correct position, and therefore the absence of vacuum pressure during loading may be ensured by detection.
Then, after detecting the vacuum-free pressure, a feeding notification may be given in step S207, which may be, for example, a signal of "feeding is possible", and waiting for the feeding of the external PLC device to be completed, and it can be seen that the process of detecting whether the vacuum pressure is generated by the vacuum suction assembly may be performed by the control assembly before step S207 or may be performed by the external PLC device after step S207.
After the external PLC device is loaded, for example, when it is detected that the workpiece is loaded onto the workpiece table, the control module may perform step S209, where step S209 may specifically be: when the vacuum suction assembly is turned on to perform vacuum suction, and the vacuum pressure is kept, the whole feeding point is finished when the vacuum pressure is kept (that is, when the judgment result in the step S210 is yes), and the workpiece table can be controlled to move to the working point.
In addition, whether the part that detects and produce vacuum pressure can be vacuum detection part, sets up in the suction inlet position, and whether the device that detects the work piece and send to the work piece platform can be visual positioner, also can be outside PLC device and feed back to control assembly after accomplishing the action to make control assembly learn, if control assembly obtains this feedback, can understand and send to the work piece platform for detecting the work piece.
FIG. 9 is a third flowchart illustrating a method for controlling the multi-Y-axis automatic processing according to an embodiment of the present invention; fig. 10 is a schematic view of a work flow of blanking in a specific example of the embodiment of the present invention.
Referring to fig. 9, after step S204, that is, after obtaining the currently processed workpiece, the method further includes:
s212: controlling the workpiece table of the current Y-axis structure to move to the blanking point;
s213: controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure;
s214: and sending a blanking notice to the external PLC device, so that when the external PLC device receives the blanking notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the currently processed workpiece is taken down from the workpiece table of the current Y-axis structure.
Correspondingly, the external PLC device may also be understood as being for:
when a blanking notice is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, taking down the currently processed workpiece from the workpiece table of the current Y-axis structure;
the control assembly can also be understood for:
after the currently processed workpiece is obtained, controlling the workpiece table of the current Y-axis structure to move to the blanking point;
and controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a blanking notice to the external PLC device.
With reference to fig. 9 and fig. 10, in a specific example, after the processing is finished, the workpiece table may enter a blanking point, and after the workpiece table enters the blanking point, the step S213 may specifically be: the vacuum breaking is performed on the vacuum suction assembly, after the vacuum suction assembly is opened, the vacuum pressure can be waited to be released, and no vacuum pressure can be detected after the vacuum pressure is released, so that the situation that the vacuum pressure causes the material not to be sucked away by an external PLC device and the normal blanking cannot be performed is prevented;
then, after detecting no vacuum pressure, a blanking notification may be given in step S214, which may be, for example, a signal of "blanking is possible", waiting for the completion of blanking by the external PLC device, and as a result, the process of detecting whether the vacuum suction assembly generates vacuum pressure may be performed by the control assembly before step S214 or may be performed by the external PLC device after step S214.
And then, after the blanking completion signal is in place, the workpiece platform can be controlled to move to a feeding point and then carry out cyclic action, and the workpiece platform starts to wait for feeding again.
The blanking completion signal can be generated by detecting and determining by the visual positioning device, or can be obtained by feeding back the external PLC device to the control assembly after completing the action. It can also be understood as: whether unloading of the detection work piece is finished, namely whether the device which is sent away from the work piece platform is a visual positioning device, and also can be an external PLC device which feeds back to the control assembly after finishing the action, so that the control assembly can learn, if the control assembly obtains the feedback, the detection work piece can be understood as that the unloading is finished.
Through each embodiment, automatic feeding and discharging can be realized by using an external PLC device, automatic triggering feeding and discharging of the external PLC device can be realized through interaction between the external PLC device and the control assembly, and vacuumizing, vacuum breaking and moving of workpieces can be automatically realized. Furthermore, the processes of detection, movement, vacuumizing, vacuum breaking and the like in the process can be triggered and realized in an automatic mode, so that manual intervention is not needed, and the labor cost is saved.
FIG. 11 is a schematic workflow diagram of a single Y-axis configuration in a specific example of an embodiment of the invention. Fig. 12 is a schematic workflow diagram of two Y-axis structures in a specific example of an embodiment of the present invention.
Referring to fig. 12, a process of alternately processing two Y-axis structures is illustrated as an example, which can be understood as a workflow of two Y-axis structures, and referring to fig. 11, a workflow of a single Y-axis structure is illustrated.
Referring to fig. 11 and 12 in conjunction with fig. 5 to 10, in a specific example, after the automation process is triggered by clicking "start", the workpiece stages of the two Y-axis structures can move to the loading point, and the control component can independently perform the processes of step S201 to step S214 for each Y-axis structure, which can be understood as that each Y-axis structure individually performs a single-axis automation process.
For each Y-axis structure, as shown in steps S201 to S204, the control module continuously detects whether there is a workpiece stage with a Y-axis structure moving to a working point through a visual positioning device or other means, and once there is a workpiece moving to the working point and there is no workpiece with another Y-axis structure currently being processed, the interpolation axis may be switched, that is, the axis participating in interpolation is switched to the current Y-axis structure, and the interpolation data and the pitch data are switched to prepare for starting cutting processing, and if there is a workpiece with another Y-axis structure being processed, the control module may wait at the working point. After the machining is finished, the current interpolation shaft can move to a blanking point, and then a subsequent blanking process is executed.
In addition, in the specific implementation process, the warning signal can be timely sent out when abnormity occurs in the actions of vacuum suction, vacuum breaking, feeding and discharging.
One of the exception events may be, for example: for any one of the vacuum suction assemblies with the Y-axis structure, after a first preset time period after the vacuum suction assembly is controlled to generate vacuum pressure, the corresponding vacuum pressure is still not detected. The abnormal event may be detected as "vacuum pressure has timed out" as shown in fig. 8, and the corresponding warning signal is the timed out alarm shown therein.
Another exception event may be, for example: for any vacuum suction assembly with the Y-axis structure, after a second preset time after the vacuum suction assembly is controlled not to generate vacuum pressure, the corresponding vacuum pressure can still be detected. This abnormal event may be detected as a "vacuum pressure release timeout" condition as shown in fig. 8 and 10, with a corresponding warning signal being a timeout alarm as shown therein.
Yet another exception event may be, for example: and aiming at any one Y-axis structure, after the third preset time length of the feeding notification is sent out, the current workpiece to be machined is not detected to be sent to the workpiece table. The abnormal event may be detected as a "material loading completion timeout" condition as shown in fig. 8, and the corresponding warning signal is a timeout alarm as shown therein.
Yet another exception event may be, for example: and aiming at any one Y-axis structure, after the fourth preset time length of the blanking notice is sent out, the workpiece still in the workpiece table after the current machining can be detected. The abnormal event may be detected as a "blanking completion timeout" condition as shown in fig. 10, and the corresponding warning signal is the timeout alarm shown therein.
The preset time duration referred to above can be fixed or freely configured.
Through the warning signal, when the system does not receive an externally given signal within a set time, a warning can be generated to prompt an operator to check the reason.
Fig. 13 is a flowchart illustrating the operation of visual positioning according to an embodiment of the present invention.
In one embodiment, the method further includes:
and acquiring real-time images corresponding to one or more Y-axis structures by using a visual positioning device, and determining whether the workpiece is positioned at a cutting starting point according to the mark points identified in the real-time images and the visual parameters calibrated in advance by each Y-axis structure.
Correspondingly, the visual positioning means can be understood to be for: and acquiring real-time images corresponding to one or more Y-axis structures, and determining whether the workpiece is at a cutting starting point position according to the mark points identified in the real-time images and the visual parameters calibrated in advance of each Y-axis structure.
The visual parameters are used for representing the display mode of the workpiece and/or the marking point thereof in the corresponding real-time image when the workpiece accurately moves to the cutting start position, and the mode may be, for example, content representing the display position, the display size, and the like of the marking point and/or the marking thereof in the real-time image, and may specifically include, for example, a mirror deviation value, a pixel length, a marking point position, a calibration matrix, and the like, and any parameter capable of representing the marking point does not depart from the description of the embodiment.
Different Y-axis structures can correspond to different visual parameters, and further, the visual parameters can be correspondingly switched when the interpolation data and the pitch data are switched, and the parameters can be bound with each axis. Therefore, the method meets the actual conditions of different axes, is similar to interpolation data and pitch data, and can avoid the influence of deviation and error on the detection result.
The visual parameters of each shaft are different, in order to enable the parameters to be correct during machining, visual calibration needs to be carried out on each shaft, before interpolation shafts are switched every time, the current visual parameters are stored in the shaft parameters, after the interpolation shafts are switched, the parameters of the current interpolation shafts are written in the visual parameters, and further, switching of the currently used visual parameters can be achieved, and further, taking a double-Y-shaft structure as an example, a user only needs to respectively carry out visual calibration on the double-Y-shaft structure once, the visual parameters can be automatically stored in the corresponding shafts, the user does not need to do any extra operation, and the use of the user is facilitated.
In a specific example, after performing the visual positioning, waiting for the camera to recognize the mark point (i.e., mark point) on the workpiece material or the workpiece stage, and if the recognition is successful, continuing to perform the next step of the normal processing.
In addition, a warning signal may also be generated if visual positioning fails, for example, identification of a mark point fails. And simultaneously popping up a manually adjusted window, manually adjusting the window to obtain the position of the mark point, considering the mark point as the manually adjusted position after the point is determined, continuing the next processing step, and automatically sending the workpiece to a discharging point if the point is cancelled, wherein the warning is cancelled no matter the position is determined or cancelled.
As can be seen, in combination with the above warnings for feeding, discharging, breaking vacuum and sucking vacuum, the situation in this embodiment that the warning signal is generated may be, for example:
giving a vacuum breaking signal, generating a warning if no vacuum pressure is detected within overtime, and canceling the warning if the vacuum pressure is not detected or the automatic process is not detected;
giving a vacuum suction signal, generating a warning if no vacuum pressure is detected within overtime, and canceling the warning if the vacuum pressure is detected or not in an automatic process;
giving a 'material loading possible' signal, generating an alarm if the material loading is not detected to be completed within overtime, and canceling the alarm if the material loading is completed or the automatic process is not completed;
giving a blanking available signal, generating a warning if the blanking completion is not detected within overtime, and canceling the warning if the blanking is completed or the automatic process is not completed;
failure to visually locate generates an alert and clicks on either the confirm or cancel or the cancel alert if not for an automated process.
In addition, during the process of the system for carrying out the automatic process, if manual operation is switched, all warnings generated by the Y-axis structure are cancelled, and meanwhile, the currently processed Y-axis structure is stopped. Therefore, the function of manual operation and control can be still kept under the automatic condition, and emergency treatment during abnormal events is guaranteed.
In summary, in the multi-Y-axis automatic processing system and the control method provided in this embodiment, at least two Y-axis structures are adopted, wherein a current workpiece to be processed on a current Y-axis structure workpiece stage can move to the working point, and no other workpiece is currently processed, so as to perform processing on the current workpiece to be processed, further, alternate processing of workpieces on different Y-axis structure workpiece stages can be realized, processing and cutting of any workpiece does not conflict with loading and unloading of other workpieces, and each Y-axis structure does not affect each other, so that an axis parallelization flow is realized, thereby providing a basis for performing cutting of a workpiece on one Y-axis structure and loading and unloading of workpieces on other Y-axis structures simultaneously, compared with a mode that only one Y-axis structure is adopted, the present invention can facilitate efficiency improvement, and meanwhile, since processes of detection, movement, vacuum pumping, vacuum breaking and the like in the process can be triggered and realized in an automatic manner, human intervention is not needed, and the labor cost is saved.
In addition, the invention also finds that even for the same cutting track requirement, due to the deviation of the installation position (such as height) of the workpiece table, errors generated in the manufacturing and assembling process of components (such as transmission components) and the like, for different Y-axis structures, if the position of the cutting head along the X axis is only changed and the same process parameters (such as cutting height, screw pitch data and interpolation data) are adopted, the problems of deviation of the processing track, reduction of precision and the like are easily caused, and the cutting effect is not ideal.
Fig. 14 is a schematic structural diagram of a control assembly according to an embodiment of the present invention.
Referring to fig. 14, there is provided a control assembly 30, including:
a processor 31; and the number of the first and second groups,
a memory 32 for storing executable instructions of the processor;
wherein the processor 31 is configured to perform the above-mentioned method via execution of the executable instructions.
The processor 31 is capable of communicating with the memory 32 via a bus 33.
The present embodiments also provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-mentioned method.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A multi-Y-axis automated processing system, comprising: the cutting machine comprises an X-axis structure, at least two parallel Y-axis structures and a control assembly, wherein the X-axis structure is used for driving a cutting head to move along an X axis, each Y-axis structure is provided with a workpiece table, and the Y-axis structures are used for driving the workpiece tables thereon to drive workpieces to move along a Y axis; each workpiece table of the Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis;
for any one of the current Y-axis configurations, the control component is to:
when the current workpiece to be machined on the current Y-axis structure workpiece table is detected to move to the working point and no other workpiece is machined currently, switching current technological parameters to technological parameters corresponding to the current Y-axis structure, wherein the technological parameters comprise cutting height data, interpolation data and screw pitch data; aiming at the same cutting track requirement, different Y-axis structures correspond to different process parameters; the interpolation data comprises interpolation data used for driving the cutting head to move by the X-axis structure and interpolation data used for driving the workpiece table to move by the Y-axis structure;
according to the current technological parameters, controlling the X-axis structure to drive the cutting head to move along an X axis and controlling the current Y-axis structure to drive the current workpiece to be machined to move along a Y axis so as to machine the current workpiece to be machined and obtain a corresponding current machined workpiece;
the device also comprises a visual positioning device, a cutting starting point positioning device and a cutting starting point positioning device, wherein the visual positioning device is used for acquiring real-time images corresponding to one or more Y-axis structures and determining whether the workpiece is positioned at the cutting starting point position according to the mark points identified in the real-time images and visual parameters calibrated in advance by each Y-axis structure; the visual parameters are used for representing the display mode of the workpiece and/or the marking points of the workpiece in the corresponding real-time images when the workpiece accurately moves to the cutting starting point position, wherein different Y-axis structures correspond to different visual parameters.
2. The system of claim 1, further comprising an external PLC device; each Y-axis structure is internally provided with a vacuum suction assembly;
for the current Y-axis configuration, the external PLC device is configured to:
conveying the current workpiece to be processed to a position to be loaded;
when a feeding notice sent by the control assembly is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure;
for the current Y-axis configuration, the control component is further to:
controlling the workpiece table of the current Y-axis structure to move to the feeding point;
controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending the feeding notice to the external PLC device;
when the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure, controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
and after the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure, controlling the workpiece table of the current Y-axis structure to move to the working point.
3. The system of claim 2, wherein for the current Y-axis configuration, the external PLC device is further configured to:
when a blanking notice is received and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, taking down the currently processed workpiece from the workpiece table of the current Y-axis structure;
for the current Y-axis configuration, the control component is further to:
after the currently processed workpiece is obtained, controlling the workpiece table of the current Y-axis structure to move to the blanking point;
and controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a blanking notice to the external PLC device.
4. The system of claim 3, wherein the control component is further configured to: if any one of the following abnormal events is detected, generating a corresponding warning signal;
aiming at any one vacuum suction assembly with a Y-axis structure, after controlling the vacuum suction assembly to generate vacuum pressure for a first preset time, the corresponding vacuum pressure is still not detected;
aiming at any one vacuum suction assembly with a Y-axis structure, after a second preset time length after the vacuum suction assembly is controlled not to generate vacuum pressure, the corresponding vacuum pressure can still be detected;
for any Y-axis structure, after sending out a third preset time length of the feeding notification, it is still not detected that the current workpiece to be machined is sent to the workpiece table;
and aiming at any one Y-axis structure, after the fourth preset time length of the blanking notice is sent out, the workpiece still in the workpiece table after the current machining can be detected.
5. A control method for multi-Y-axis automatic processing is characterized in that the control method is applied to a control component in a multi-Y-axis automatic processing system, and the multi-Y-axis automatic processing system further comprises the following steps: the X-axis structure is used for driving the cutting head to move along the X axis, each Y-axis structure is provided with a workpiece table, and the Y-axis structure is used for driving the workpiece table thereon to drive a workpiece to move along the Y axis; each workpiece table of the Y-axis structure can move among a feeding point, a working point and a discharging point of the workpiece table through motion along the Y axis;
the method comprises the following steps:
for any one current Y-axis structure, when a current workpiece to be machined on a workpiece table of the current Y-axis structure is detected to move to the working point and no other workpiece is machined currently, switching current technological parameters into technological parameters of the current Y-axis structure, wherein the technological parameters comprise cutting height data, interpolation data and thread pitch data; aiming at the same cutting track requirement, different Y-axis structures correspond to different process parameters; the interpolation data comprises interpolation data used for driving the cutting head to move by the X-axis structure and interpolation data used for driving the workpiece table to move by the Y-axis structure;
controlling the X-axis structure to drive the cutting head to move along an X axis and controlling the current Y-axis structure to drive the current workpiece to be processed to move along a Y axis according to the current technological parameters so as to process the current workpiece to be processed and obtain a corresponding current processed workpiece;
acquiring real-time images corresponding to one or more Y-axis structures by using a visual positioning device, and determining whether a workpiece is positioned at a cutting starting point or not according to the mark points identified in the real-time images and visual parameters calibrated in advance by each Y-axis structure; the visual parameters are used for representing the display mode of the workpiece and/or the marking points of the workpiece in the corresponding real-time images when the workpiece accurately moves to the cutting starting point position, wherein different Y-axis structures correspond to different visual parameters.
6. The method of claim 5, wherein before the current workpiece to be machined on the current Y-axis workpiece stage is detected to move to the work point, further comprising:
controlling the workpiece table of the current Y-axis structure to move to the feeding point;
controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a feeding notice to an external PLC device so that: when the external PLC device receives the feeding notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure, the current workpiece to be machined is sent to the workpiece table of the current Y-axis structure;
when the current workpiece to be machined is detected to be sent to the workpiece table of the current Y-axis structure, controlling the vacuum suction assembly to generate vacuum pressure so as to suck the current workpiece to be machined on the workpiece table;
and after the vacuum suction assembly of the current Y-axis structure is detected to generate vacuum pressure, controlling the workpiece table of the current Y-axis structure to move to the working point.
7. The method of claim 6, further comprising:
after the currently processed workpiece is obtained, controlling the workpiece table of the current Y-axis structure to move to the blanking point;
and controlling the vacuum suction assembly of the current Y-axis structure not to generate vacuum pressure, and sending a blanking notice to the external PLC device, so that the external PLC device takes down the currently processed workpiece from the workpiece table of the current Y-axis structure when receiving the blanking notice and the vacuum suction assembly of the current Y-axis structure is detected not to generate vacuum pressure.
8. The method of claim 7, further comprising:
if any one of the following abnormal events is detected, generating a corresponding warning signal;
aiming at any one vacuum suction assembly with a Y-axis structure, after controlling the vacuum suction assembly to generate vacuum pressure for a first preset time, the corresponding vacuum pressure is still not detected;
aiming at any one vacuum suction assembly with a Y-axis structure, after a second preset time length after the vacuum suction assembly is controlled not to generate vacuum pressure, the corresponding vacuum pressure can still be detected;
for any Y-axis structure, after sending out a third preset time length of the feeding notification, it is still not detected that the current workpiece to be machined is sent to the workpiece table;
and aiming at any one Y-axis structure, after the fourth preset time length of the blanking notice is sent out, the workpiece still in the workpiece table after the current machining can be detected.
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