CN114911195A - Multi-station numerical control machine tool machining method and terminal - Google Patents

Abstract

The invention discloses a multi-station numerical control machine tool machining method and a terminal, wherein the multi-station numerical control machine tool machining method comprises the following steps: loading a multi-station numerical control main program; determining a station subprogram; copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit; adding a processing technology matched with the station subprogram; and the multi-station numerical control main program calls the station subprogram under the calling path built in the numerical control unit and is matched with the corresponding processing technology to process the workpiece. The multi-station numerical control machine tool processing method of the technical scheme of the invention ensures that the utilization rate of the built-in storage space of the numerical control unit is high, the operation stability of the machine tool is high, and the processing efficiency is high.

Description

Multi-station numerical control machine tool machining method and terminal

Technical Field

The invention relates to the technical field of numerical control machining, in particular to a multi-station numerical control machine tool machining method and a terminal applying the same.

Background

With the continuous progress of science and technology, the requirement on the numerical control machine tool is higher and higher, and secondary development needs to be carried out on the interface of the numerical control machine tool so as to meet the intelligent and simplified requirements of the numerical control machine tool. However, the interface development difficulty of the numerical control system is high, and secondary development of a human-computer interface is completed by means of communication between auxiliary function software and the numerical control system.

In the process of automatically processing the workpiece by the numerical control system, the multi-station program can be processed by calling the subprogram by the multi-station numerical control main program, so that the processing efficiency is improved. However, in a default situation, the system recognizes a program path in the built-in storage space of the numerical control system and calls a subprogram in the program path, and with modification and replacement of the station subprogram, the more subprograms in the built-in storage space of the numerical control system are accumulated, the more the built-in storage space of the numerical control system is occupied, and the machine tool cannot normally operate.

Disclosure of Invention

The invention provides a machining method of a multi-station numerical control machine tool, which enables the utilization rate of a built-in storage space of a numerical control unit to be high, the running stability of the machine tool to be high and the machining efficiency to be high.

The invention provides a machining method of a multi-station numerical control machine tool, which comprises the following steps:

loading a multi-station numerical control main program;

determining a station subprogram;

copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit;

adding a processing technology matched with the station subprogram;

and the multi-station numerical control main program calls the station subprogram under the calling path built in the numerical control unit and is matched with the corresponding processing technology to process the workpiece.

Optionally, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit includes:

a program text named by the program name of the station subprogram is stored in the numerical control unit under a built-in calling path;

and copying the content of the station subprogram from a local hard disk, and storing the copied content in a program text which is consistent with the program name of the station subprogram under a built-in calling path.

Optionally, the step of storing the copied content in a program text under the built-in call path and consistent with the program name of the workstation subprogram includes:

judging whether the content of the program text consistent with the program name of the station subprogram is empty or not;

if yes, storing the copied content in a corresponding program text;

and if not, covering the copied content with the content existing in the corresponding program text.

Optionally, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit includes:

and newly building a program text consistent with the program name of the workstation subprogram under a built-in calling path of the numerical control unit, and copying the content of the determined workstation subprogram into the program text from a local hard disk.

Optionally, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit includes:

judging whether a program text consistent with the program name of the determined station subprogram exists under the built-in calling path of the numerical control unit;

if yes, copying the content of the station subprogram from a local hard disk to a corresponding program text;

and if the program text does not exist, creating a new program text, naming the program name of the workstation subprogram as the program text, and copying the content of the workstation subprogram from the local hard disk into the program text.

Optionally, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit is executed while further including:

and marking the program name of the current station subprogram, and storing and displaying the program name in the form of an interface variable.

Optionally, the step of adding a machining process matched with the station subprogram includes:

retrieving a process parameter name within the workstation subroutine;

and loading a process parameter list corresponding to the process parameter name.

Optionally, the step of copying the content of the determined workstation subprogram from the local hard disk to the digital control unit built-in call path further includes:

performing a station subprogram at a single station;

adjusting technological parameters;

judging whether the cutting requirements are met;

if not, returning to the previous step to continuously adjust the process parameters;

and if so, storing the process parameters in a text form, switching the stations, and independently executing the station subprograms corresponding to the switched stations until all the process parameters matched with each station subprogram are modified.

Optionally, the step of calling the station subprogram under the calling path built in the numerical control unit by the multi-station numerical control main program and matching the corresponding processing technology to process the workpiece further includes:

and adding monitoring, wherein the monitoring detects and records the rotation of the workbench, and feeds back the detection result to the multi-station numerical control main program, and the multi-station numerical control main program switches the processing technology according to the detection result.

The application also provides a terminal, which comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the terminal is characterized in that the processor executes the steps of the multi-station numerical control machine tool machining method when running the computer instructions;

the machining method of the multi-station numerical control machine tool comprises the following steps:

loading a multi-station numerical control main program;

determining a station subprogram;

copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit;

adding a processing technology matched with the station subprogram;

and the multi-station numerical control main program calls the station subprogram under the calling path built in the numerical control unit and is matched with the corresponding processing technology to process the workpiece.

In this application technical scheme, the station subprogram is deposited in local hard disk, promptly, the station subprogram is deposited in PCU 50's hard disk. The PCU50 can be used to store more workpiece subroutines because of its large hard disk storage space. And determining the station subprogram to be added according to the current processing requirement, and adding the corresponding station subprogram for calling the multi-station numerical control main program. The method for adding the station subprogram is to copy the content of the determined station subprogram from a local hard disk to the built-in calling path of the numerical control unit. Because the system can automatically find the station subprogram under the built-in calling path of the numerical control unit in the process of operating the HMI of the PCU50 or operating the built-in HMI of the CF card, the technical scheme of the application can copy the corresponding station subprogram to the built-in calling path of the numerical control unit according to the current requirement for calling by the multi-station numerical control main program, so that too many station subprograms are stored in the built-in calling path of the numerical control unit in advance, the space utilization rate of the built-in calling path of the numerical control unit is high, and the high operation stability and the high processing efficiency of the machine tool can be ensured.

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, 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 the structures shown in the drawings without creative efforts.

FIG. 1 is a flow chart of one embodiment of the multi-station numerical control machine tool machining method of the present application;

FIG. 2 is a partial flow chart of another embodiment of the multi-station numerically controlled machine tool machining method according to the present application;

fig. 3 is a flowchart of another embodiment of the machining method of the multi-station numerically-controlled machine tool of the present application.

The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The application provides a multi-station Numerical Control machine tool machining method and a Computer Numerical Control (CNC) system applying the multi-station Numerical Control machine tool machining method. The computer Numerical Control system may include a Numerical Control Unit (NCU), an operation Unit, and a Panel Control Unit (PCU), and the NCU may communicatively connect the operation Unit and the PCU. The operation unit can be a gantry type multi-station numerical control machine tool, and particularly can be a three-dimensional five-axis thermal forming machine tool.

The CNC system mainly aimed at in the present application is siemens 840D numerical control system, the control unit of the computer numerical control system runs on the Linux operating system, the Linux system Interface development difficulty is large, and the CNC system is limited by a Human Machine Interface (HMI) framework built in the NCU. In addition, station subprograms, secondary development interfaces, alarm texts, backup files and the like of the machine tool are all stored in the CF card directory, and the NCU can call the data from the CF card directory in the running process. However, the capacity of the CF card is small, and when the station subprogram is excessive, the capacity of the CF card cannot meet the use requirement.

The PCU50 is an industrial computer with a separate central processing unit, hard disk, and display. Inputs can be made using the HMI on the PCU50 to control the entire cnc system. The PCU50 can customize the interface to enable decoupling of the control unit built-in HMI framework. In addition, the PCU50 can provide sufficient hard disk storage space.

In the embodiment of the application, the PCU50 is used to assist in secondary development of the CNC system, but the HMI of the PCU50 and the HMI file path built in the CF card collide with each other, and the HMI built in the CF card needs to be closed during the operation of the HMI of the PCU 50. However, turning off the CF card built-in HMI may result in the HMI development interface of PCU50 not being able to use the complete machine tool commissioning function and modify machine tool system data, and therefore, the CF card built-in HMI needs to be turned on simultaneously during the operation of the HMI of PCU 50.

Referring to fig. 1, in the embodiment of the application, the machining method of the multi-station numerical control machine tool comprises the following steps:

loading a multi-station numerical control main program;

determining a station subprogram;

copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit;

adding a processing technology matched with the station subprogram;

and the multi-station numerical control main program calls the station subprogram under the calling path built in the numerical control unit and is matched with the corresponding processing technology to process the workpiece.

In this application technical scheme, the station subprogram is deposited in local hard disk, promptly, the station subprogram is deposited in PCU 50's hard disk. The PCU50 can be used to store more workpiece subroutines because of its large hard disk storage space. And determining the station subprogram to be added according to the current processing requirement, and adding the corresponding station subprogram for calling the multi-station numerical control main program. The method for adding the station subprogram is to copy the content of the determined station subprogram from a local hard disk to the built-in calling path of the numerical control unit. Because the system automatically searches the station subprogram under the built-in calling path of the numerical control unit (namely, the CF card directory) in the process of operating the HMI of the PCU50 or operating the HMI built in the CF card, the technical scheme of the application can copy the corresponding station subprogram to the built-in calling path of the numerical control unit according to the current requirement for calling by the multi-station numerical control main program, so that too many station subprograms are stored in advance under the built-in calling path of the numerical control unit, the space utilization rate of the built-in calling path of the numerical control unit is high, and the high operation stability and the high processing efficiency of a machine tool can be ensured.

The above steps may be performed manually on the HIMI of the PCU50 or may be performed automatically by the CNC system according to programmed settings. When the HIMI is manually operated, the corresponding operation can be executed by clicking a display key on the HIMI through a touch screen or a mouse.

In the embodiment of the application, before the multi-station numerical control main program is loaded, the multi-station numerical control main program can be edited, wherein the multi-station numerical control main program comprises functions of electrical logic, safety interlocking, workpiece program calling and the like, and the station subprogram can be called through an EXTCALL command. The editing of the multi-station numerical control main program can be manual editing or can be automatically generated by a system in a specific mode.

In the embodiment of the application, before adding the station subprogram, the station subprogram can be manually edited or automatically generated, and specifically, the station subprogram can be produced through computer-aided manufacturing software or a demonstrator.

After the station subprogram is generated, the processing technology needs to be configured before the station subprogram is added. The steps of configuring the processing technology may be: and (4) executing each station subprogram independently, repeatedly adjusting the machining process until the optimal cutting requirement is met, and storing the optimal process parameters in a configuration text in a list form.

Referring to the flow chart shown in fig. 2, the configuration process of the manufacturing process may include the following steps:

performing a station subprogram at a single station;

adjusting technological parameters;

judging whether the cutting requirements are met;

if not, returning to the previous step to continuously adjust the process parameters;

and if so, storing the process parameters in a text form, switching the stations, and independently executing the station subprograms corresponding to the switched stations until all the process parameters matched with each station subprogram are modified.

And each station subprogram is bound with a corresponding processing technology, and the processing technology can be switched with the multi-station numerical control main program after the stations are switched in the execution process, so that the technological parameters are matched with the workpieces processed on the stations. The workpiece on each station can be matched with a standard machining process in the machining process, so that the machining quality of each workpiece is high.

In the above embodiment, the step under the program path of copying the determined content of the workstation subprogram from the local hard disk to the built-in storage space of the numerical control system may include:

a program text named by the program name of the station subprogram is stored in the numerical control unit under a built-in calling path;

and copying the content of the station subprogram from a local hard disk, and storing the copied content in a program text which is consistent with the program name of the station subprogram under a built-in calling path.

The program name of the station subprogram is only fixed in the part program or subprogram catalog of the CF card of the numerical control unit, and when the station subprogram is loaded and switched, the content of the corresponding program under the hard disk of the PCU50 is copied into the program text under the CF card catalog, so that the memory tension of the CF card can be avoided.

In the above embodiment, the step of storing the copied content in the program text under the built-in call path and consistent with the program name of the workstation subprogram includes:

judging whether the content of the program text consistent with the program name of the station subprogram is empty or not;

if yes, storing the copied content in a corresponding program text;

and if not, covering the copied content with the content existing in the corresponding program text.

When the content in the program text is empty, the copied program content can be directly pasted to the corresponding program text; and when the program text already stores the content, directly covering the original content by using the copied program content. The scheme enables the CF card of the numerical control unit to store the corresponding station subprogram only according to the workpiece needing to be machined currently, and the station subprogram which is executed before and is not needed to be executed in the subsequent machining can be replaced, so that the high utilization rate of the built-in storage space of the numerical control system is ensured.

In the above embodiment, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit may include:

and newly building a program text consistent with the program name of the workstation subprogram under a built-in calling path of the numerical control unit, and copying the content of the determined workstation subprogram into the program text from a local hard disk.

When the program text with the consistent program name of the determined workstation subprogram does not exist under the built-in calling path of the numerical control unit, the program text with the consistent program name of the workstation subprogram can be newly built under the CF card catalog of the numerical control unit in a new building mode, and the copied workstation subprogram content is pasted into the newly built program text.

Further, in the above embodiment, the step of performing the add station subroutine may further include the following steps:

judging whether a station subprogram under a built-in calling path of the numerical control unit needs to be deleted or not;

and if so, emptying the content of the program text consistent with the name of the station subprogram.

When a certain program text stored with the program content under the CF card directory is judged not to be used in the subsequent processing, the content of the program text can be deleted according to the requirement, and the memory of the CF card is further saved.

In the above embodiment, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit includes:

judging whether a program text consistent with the program name of the determined station subprogram exists under the built-in calling path of the numerical control unit;

if yes, copying the content of the station subprogram from a local hard disk to a corresponding program text;

and if the program text does not exist, creating a new program text, naming the program name of the workstation subprogram as the program text, and copying the content of the workstation subprogram from the local hard disk into the program text.

In the scheme, the system can automatically execute the judging, copying and newly-built operation, manual program text creation is not needed, and the machining efficiency of the machine tool can be further improved.

In the above embodiment, the step of copying the content of the determined workstation subprogram from the local hard disk to the built-in call path of the numerical control unit is executed, and the method further includes:

and marking the program name of the current station subprogram, and storing and displaying the program name in the form of an interface variable.

When the station subprogram is executed currently, the name of the station subprogram can be displayed in real time on a human-computer interaction interface, and a worker can conveniently know the currently executed station subprogram and judge whether the station subprogram needs to be replaced.

In the above embodiment, the step of calling the station subprogram under the calling path built in the numerical control unit by the multi-station numerical control main program and matching the corresponding processing technology to process the workpiece further includes:

and adding monitoring, wherein the monitoring detects and records the rotation of the workbench, and feeds back the detection result to the multi-station numerical control main program, and the multi-station numerical control main program switches the processing technology according to the detection result.

After the current station subprogram finishes processing the workpiece on the corresponding station, the workbench rotates, a workbench rotation signal is monitored and detected, the rotation signal is fed back to the multi-station numerical control main program, and the multi-station numerical control main program acquires the rotation signal and executes switching of the processing technology.

In the above embodiment, the step of adding the processing technology matched with the station subprogram may further include:

and in the process of matching the machining process with the station subprogram, the station subprogram contains a process parameter name corresponding to the machining process, and when the station subprogram is executed, corresponding process parameters are matched in the process parameter list according to the process parameter name.

With reference to fig. 1 and 3, in the above embodiment, the step of adding the processing technology matched with the station subroutine includes:

retrieving a process parameter name within the workstation subroutine;

and loading a process parameter list corresponding to the process parameter name.

After the completion station subprogram and the corresponding process parameter list are added, the multi-station numerical control main program can be executed, and when the rotation of the workbench is monitored, the station subprogram can be automatically matched with the corresponding process parameters.

In the above embodiment, the step of adding the processing technology matched with the station subprogram may further include:

retrieving the name of the process parameter in the subprogram of each station;

and if the process parameter name does not exist or the processing process needs to be switched, adding a process parameter file to be matched with the station subprogram, extracting a corresponding process parameter list and recording the matched process parameter name in the content of the station subprogram.

And starting the machine tool and executing the multi-station numerical control main program after the station subprogram and the matched machining process are completely added. And starting the background monitoring of the system, and monitoring and recording the current station state in real time.

A limit switch can be arranged on the machine base and can detect the rotation of the workbench, when a signal that the limit switch is triggered is monitored to indicate that a machining side station machining subprogram is about to be executed, the system automatically extracts and applies technological parameters matched with the current workpiece subprogram; and simultaneously monitoring the next trigger signal of the waiting limit switch, and applying matched process parameters in real time.

And if the system is monitored to reset or stop suddenly to interrupt the operation, the system quits monitoring and waits for a processing command or stops.

The technical scheme of the application also provides a terminal, and the terminal can be a panel control unit and also can be a computer numerical control system with the panel control unit. The terminal comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the processor executes the steps of the multi-station numerical control machine tool machining method when running the computer instructions.

The steps of the multi-station numerical control machine tool processing method refer to the above embodiments, and the terminal adopts all the technical schemes of all the above embodiments, so that the terminal at least has all the beneficial effects brought by the technical schemes of the above embodiments, and further description is omitted.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The machining method of the multi-station numerical control machine is characterized by comprising the following steps of:

loading a multi-station numerical control main program;

determining a station subprogram;

copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit;

adding a processing technology matched with the station subprogram;

and the multi-station numerical control main program calls the station subprogram under the calling path built in the numerical control unit and is matched with the corresponding processing technology to process the workpiece.

2. A multi-station numerically controlled machine tool machining method according to claim 1, wherein the step of copying the contents of the determined station subprogram from a local hard disk to a position under a call path built in the numerical control unit comprises:

a program text named by the program name of the station subprogram is stored in the numerical control unit under a built-in calling path;

and copying the content of the station subprogram from a local hard disk, and storing the copied content in a program text which is consistent with the program name of the station subprogram under a built-in calling path.

3. A multi-station numerical control machine tool machining method according to claim 2, wherein the step of storing the copied contents in a program text under a built-in calling path in correspondence with the program name of the station subprogram comprises:

judging whether the content of the program text consistent with the program name of the station subprogram is empty or not;

if yes, storing the copied content in a corresponding program text;

and if not, covering the copied content with the content existing in the corresponding program text.

4. A multi-station numerically controlled machine tool machining method according to claim 1, wherein the step of copying the contents of the determined station subprogram from a local hard disk to a position under a call path built in the numerical control unit comprises:

and newly building a program text consistent with the program name of the workstation subprogram under a built-in calling path of the numerical control unit, and copying the content of the determined workstation subprogram into the program text from a local hard disk.

5. A multi-station numerical control machine tool machining method according to any one of claims 1 to 4, characterized in that the step of copying the contents of the determined station subprogram from a local hard disk to a position under a built-in call path of the numerical control unit comprises:

judging whether a program text consistent with the program name of the determined station subprogram exists under the built-in calling path of the numerical control unit;

if yes, copying the content of the workstation subprogram from the local hard disk to a corresponding program text;

and if the program text does not exist, creating a new program text, naming the program name of the workstation subprogram as the program text, and copying the content of the workstation subprogram from the local hard disk into the program text.

6. A multi-station numerical control machine processing method according to any one of claims 1 to 4, characterized in that the step of copying the content of the determined station subprogram from a local hard disk to a built-in calling path of the numerical control unit is executed while further comprising:

and marking the program name of the current station subprogram, and storing and displaying the program name in the form of an interface variable.

7. A multi-station numerical control machine tool machining method according to any one of claims 1 to 4, characterized in that the step of adding a machining process matching the station subroutine comprises:

retrieving a process parameter name within the workstation subroutine;

and loading a process parameter list corresponding to the process parameter name.

8. A multi-station numerical control machine tool machining method according to any one of claims 1 to 4, characterized in that the step of copying the contents of the determined station subprogram from a local hard disk to a position under a built-in calling path of the numerical control unit is preceded by the step of:

performing a station subprogram at a single station;

adjusting technological parameters;

judging whether the cutting requirements are met;

if not, returning to the previous step to continuously adjust the process parameters;

and if so, storing the process parameters in a text form, switching the stations, and independently executing the station subprograms corresponding to the switched stations until all the process parameters matched with each station subprogram are modified.

9. A multi-station numerical control machine tool machining method according to any one of claims 1 to 4, wherein the step of calling the station subprogram under the calling path built in the numerical control unit by the multi-station numerical control main program and matching the corresponding machining process to machine the workpiece further comprises the steps of:

and adding monitoring, wherein the monitoring detects and records the rotation of the workbench, and feeds back the detection result to the multi-station numerical control main program, and the multi-station numerical control main program switches the processing technology according to the detection result.

10. A terminal comprising a memory and a processor, wherein the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to perform the steps of the multi-station cnc machining method according to any one of claims 1 to 9.

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