CN115922447A

CN115922447A - CNC machining method, system, medium and device for multiple-variety small-batch machined parts

Info

Publication number: CN115922447A
Application number: CN202211640651.8A
Authority: CN
Inventors: 李少文
Original assignee: Guangdong Hongyuan Xinke Automation Technology Development Co ltd
Current assignee: Guangdong Hongyuan Xinke Automation Technology Development Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-07

Abstract

The invention provides a CNC machining method for various small-batch machined parts, which comprises the following steps of: splitting all machining programs of the to-be-machined parts in the CNC into a plurality of sub-machining programs according to the types of the cutters; summarizing all the subprocesses, screening the subprocesses of the same cutter type by taking the cutter as a unit, and forming a subprogram set; sequencing each sub-program set across workpieces to form a main processing program; and sending a machining operation instruction to the CNC based on the main machining program, so that the CNC machines the workpiece to be machined in the machine. The invention optimizes the processing program, adjusts the processing sequence of CNC, enables the same cutter to process each workpiece to be processed in sequence, avoids the defect that the same cutter needs to be called for many times when a plurality of workpieces to be processed are processed together, saves the time for changing, setting and positioning the cutter, and improves the processing efficiency.

Description

CNC machining method, system, medium and device for multiple-variety small-batch machined parts

Technical Field

The invention relates to the technical field of intelligent processing, in particular to a CNC (computer numerical control) processing method, a system, a medium and a device for multiple varieties of small-batch processed parts.

Background

With the rise of labor cost and the further development of robotics and wireless communication and control technologies, intelligent production technologies are widely applied in factories. However, for the production of various products and small batches, there still exist many difficulties and defects due to the diversity and variability of the production, including:

in the prior art, when the process scheduling of multi-variety and small-batch production is carried out, the workpieces are sequenced and finished one by one, the same cutter needs to be called out for many times, and therefore when different kinds of workpieces need to be processed, a great amount of time is needed for carrying out calibration work such as cutter changing, cutter setting and positioning every time the workpiece kind is changed, so that the effective processing time of CNC is greatly reduced, and the extreme waste of processing resources is caused.

In the conventional method generally used for mass production, multiple pieces of work are processed by using the same working coordinate system as an array in an NC program, but because the joint of a tool holder and a machine tool has an error, the program position and the product position also have an error. And the variety of workpieces and the clamp need to be frequently replaced in the production process of various small batches, so that the good product rate of the machined parts is poor.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a CNC machining method, a CNC machining system, a CNC machining medium and a CNC machining device for various small-batch machined parts.

The specific technical scheme is as follows:

the CNC machining method of the multiple-variety small-batch machined parts comprises the following steps:

splitting all machining programs of the to-be-machined parts in the CNC into a plurality of sub-machining programs according to the types of the cutters;

summarizing all the subprocesses, screening the subprocesses of the same cutter type by taking the cutter as a unit, and forming a subprogram set;

sequencing each sub-program set across workpieces to form a main processing program;

and sending a machining operation instruction to the CNC based on the main machining program, so that the CNC machines the workpiece to be machined in the machine.

In one embodiment, sorting the set of sub-programs across workpieces to form a main processing program comprises:

and based on the type of the tool of each sub machining program set, sequencing each sub machining program set from a large tool to a small tool and from a coarse tool to a fine tool in a cross-workpiece mode to form a main machining program.

In one embodiment, each sub-machining program corresponds to a coordinate system, and the coordinate systems are independent of each other.

In one embodiment, the machining program of all the workpieces to be machined in the CNC is split into a plurality of sub-machining programs according to the type of the tool, and the method comprises the following steps: feeding by adopting a robot;

mounting a workpiece to be processed on a clamp;

sending a feeding operation instruction to the robot;

the robot puts a plurality of fixtures provided with workpieces to be processed into a fixture base of the CNC in sequence based on the feeding operation command, preferably, the types of the workpieces to be processed on the fixture base are the same or different, and/or the sizes of the workpieces to be processed on the fixture base are the same or different.

In one embodiment, the method comprises the following steps of sending a machining operation command to a CNC based on a main machining program, and machining a workpiece to be machined in the CNC machine, wherein the method comprises the following steps:

and after the machining is finished, sending a blanking operation instruction to the robot, and taking out the machined workpiece from the CNC by the robot.

In one particular embodiment, the mounting of the piece to be worked on the jig previously comprises: processing by adopting a plurality of CNC;

dividing the machining precision according to the machining capacity of each CNC;

installing a cutter with corresponding machining precision in a tool magazine of the CNC on the basis of the machining precision of the CNC;

and summarizing all the CNC tool magazines to form a tool magazine system, wherein the tool magazine system comprises all the tools required for finishing all the workpieces to be machined.

In one embodiment, the robot sequentially puts a plurality of jigs with workpieces to be processed on the jig base of the CNC based on the feeding operation command, including:

the robot grabs the clamp provided with the workpiece to be processed based on the feeding operation instruction and reads information of the workpiece to be processed;

acquiring the machining precision required by the workpiece to be machined based on the information of the workpiece to be machined;

based on the machining precision required by the workpiece to be machined, a feeding operation instruction is sent to the robot again, and the robot puts the clamp provided with the workpiece to be machined on a clamp base of the CNC, wherein the clamp base accords with the machining precision;

and the robot grabs the next clamp provided with the workpiece to be processed based on the feeding operation instruction and puts the next clamp into a clamp base of the CNC.

A CNC machining system for multiple-variety small-batch machined parts is used for realizing a CNC machining method for multiple-variety small-batch machined parts, and comprises the following steps:

the splitting module is used for splitting all the processing programs of the to-be-processed parts in the CNC into a plurality of sub-processing programs according to the type of the cutter;

the screening module is used for summarizing all the sub-processing programs, screening the sub-processing programs of the same cutter type by taking the cutter as a unit, and forming a sub-program set;

the sequencing module is used for sequencing each subroutine set across workpieces to form a main processing program;

and the processing module is used for sending a processing operation instruction to the CNC based on the main processing program so that the CNC processes the workpiece to be processed in the machine.

A computer-readable storage medium having stored thereon a computer program which, when executed, implements the CNC processing method of the multiple variety small lot workpiece.

The CNC machining device for the multiple-variety small-batch machined parts comprises a memory and a processor;

the memory is used for storing a computer program;

the processor is coupled to the memory for executing the computer program stored in the memory to cause the CNC machining apparatus of the multiple variety small lot workpieces to perform the CNC machining method of the multiple variety small lot workpieces of any of claims 1-7.

The invention has at least the following beneficial effects:

the invention provides a CNC machining method for multiple varieties of small-batch machined parts, which comprises the following steps: splitting all machining programs of the to-be-machined parts in the CNC into a plurality of sub-machining programs according to the types of the cutters; summarizing all the subprocesses, screening the subprocesses of the same cutter type by taking the cutter as a unit, and forming a subprogram set; sequencing each sub-program set across workpieces to form a main processing program; and sending a machining operation instruction to the CNC based on the main machining program, so that the CNC machines the workpiece to be machined in the machine. According to the method, the processing program of each workpiece to be processed is split into a plurality of sub-processing programs according to the type of the cutter, and the sub-processing programs are reordered according to the type of the cutter, so that the processing program is optimized, the processing sequence of CNC is adjusted, the same cutter is used for processing each workpiece to be processed in sequence, the defect that the same cutter needs to be called for many times when a plurality of workpieces to be processed are processed together is avoided, the time for changing, setting and positioning the cutter is saved, and the processing efficiency is improved.

Furthermore, each sub-processing program corresponds to a coordinate system, and the coordinate systems are independent from each other. The invention ensures that the sub-processing program corresponding to each type of cutter used by the workpiece to be processed corresponds to an independent coordinate system, can effectively modify parameters according to conditions to adjust so as to ensure the processing quality, overcomes the defect that the joint of a tool clamp and a machine tool has errors which are difficult to adjust when the same coordinate system is used for processing a plurality of workpieces to be processed, is convenient to realize position compensation and improves the processing quality.

Further, the invention also provides a CNC processing system of multiple varieties of small-batch processed workpieces, which is used for realizing the CNC processing method of the multiple varieties of small-batch processed workpieces, and comprises the following steps: the splitting module is used for splitting all the processing programs of the to-be-processed parts in the CNC into a plurality of sub-processing programs according to the types of the tools; the screening module is used for summarizing all the sub-processing programs, screening the sub-processing programs of the same cutter type by taking the cutter as a unit, and forming a sub-program set; the sequencing module is used for sequencing each subroutine set across workpieces to form a main processing program; and the processing module is used for sending a processing operation instruction to the CNC based on the main processing program so that the CNC processes the workpiece to be processed in the machine. The method avoids the need of calling the same cutter for multiple times when multiple workpieces to be machined are machined, saves the time for changing, setting and positioning the cutter, and improves the machining efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a first flowchart of a CNC processing method for a plurality of varieties of small-lot workpieces provided in embodiment 1;

FIG. 2 is a second flowchart of the CNC machining method of multiple varieties of small-lot workpieces provided in example 1;

fig. 3 is a third flowchart of the CNC processing method for the multi-variety small-lot-size workpieces provided in embodiment 1;

fig. 4 is a fourth flowchart of the CNC processing method for the multi-variety small-lot processed parts provided in the embodiment 1;

fig. 5 is a fifth flowchart of the CNC processing method for a plurality of varieties of small-lot processed pieces provided by the embodiment 1;

fig. 6 is a first schematic view of the CNC processing method for the multi-variety small-lot processed parts provided in the embodiment 1;

FIG. 7 is a second schematic view of the CNC machining method of a plurality of types of workpieces in a small lot provided in example 1;

fig. 8 is a third schematic view of the CNC processing method for processing a plurality of varieties of small-lot workpieces provided by the embodiment 1;

FIG. 9 is a fourth schematic view of the CNC machining method of a plurality of varieties of workpieces in a small lot provided in example 1;

fig. 10 is a fifth schematic view of the CNC processing method for the multi-variety small-lot processed parts provided in the embodiment 1;

fig. 11 is a sixth schematic view of the CNC processing method for the multi-variety small-lot processed parts provided in the embodiment 1;

fig. 12 is a seventh schematic view of the CNC processing method for the multi-variety small-lot workpiece provided in the embodiment 1;

fig. 13 is a schematic structural diagram of a CNC processing apparatus for processing a plurality of kinds of workpieces in a small lot provided in embodiment 2.

Reference numerals are as follows:

1-a robot; 2, clamping; 3-CNC; 4-a control device; 5-a clamp base; 6-processing the workpiece; 7-splitting the module; 8-a screening module; 9-a sorting module; 10-processing the module.

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.

Hereinafter, the term "includes" or "may include" used in various embodiments of the present invention indicates the presence of the disclosed functions, operations, or elements, and does not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

As shown in fig. 1 to 13, the present invention provides a CNC processing method, system, medium, and apparatus for a plurality of kinds of small lot workpieces, the method including:

sequencing the sub program sets across workpieces to form a main processing program;

In the prior art, when scheduling procedures of multi-variety and small-batch production, the CNC processing method of multi-variety and small-batch processed workpieces can sort the workpieces by using the workpieces as a unit and finish processing one by one according to the sorting, often the same cutter needs to be called out for many times, so that when different types of workpieces need to be processed, a great amount of time is needed to be spent on the calibration work of tool changing, tool setting, positioning and the like every time the type of the processed workpiece is changed, the effective processing time of the CNC is greatly reduced, and the extreme waste of processing resources is caused.

According to the method, the processing program of each workpiece to be processed is split into a plurality of sub-processing programs according to the type of the cutter, and the sub-processing programs are reordered according to the type of the cutter, so that the processing program is optimized, the processing sequence of CNC is adjusted, the same cutter is used for processing each workpiece to be processed in sequence, the defect that the same cutter needs to be called for many times when a plurality of workpieces to be processed are processed together is avoided, the time for changing, setting and positioning the cutter is saved, and the processing efficiency is improved.

Example 1

As shown in fig. 1 to 5 and 12, the present invention provides a CNC processing method of a plurality of kinds of small lot workpieces, applied to a system composed of a robot 1, a jig 2, a CNC3 and a control device 4, characterized by comprising:

installing a workpiece 6 to be machined on a fixture 2, sending a feeding operation instruction to a robot 1 by a control device 4, and sequentially placing a plurality of fixtures 2 provided with the workpiece 6 to be machined on a fixture base 5 in a CNC3 by the robot 1 based on the feeding operation instruction;

the control device 4 splits all processing programs of the workpieces 6 to be processed on the fixture base 5 into a plurality of sub-processing programs according to the types of the tools, collects all the sub-processing programs, screens out the sub-processing programs of the same tool type by taking the tools as a unit, forms a sub-program set, sorts the sub-program sets across the workpieces to form a main processing program, sends a processing operation instruction to the CNC3 based on the main processing program, and the CNC3 processes the workpieces 6 to be processed in the machine;

after the machining is completed, the control device 4 sends a blanking operation command to the robot 1, and the robot 1 takes out the machined workpiece from the CNC.

Because the traditional processing scheduling method takes the workpieces to be processed as a unit for sequencing, the working procedures among a plurality of workpieces to be processed cannot be realized, when a single piece is produced in a small batch, a program corresponding to each product comprises K cutters, if different workpieces to be processed are combined for processing a plurality of workpieces together, the same cutter can be called for N (the number of different types of products), the time required for one-time cutter changing is t, and the time required for finishing all the workpieces to be processed 6 on the clamp base 5 is K x N t.

After the optimization of the invention, all the workpieces 6 to be processed on the fixture base 5 are subjected to combined treatment by using the same cutter process, so that the time for calling out the same cutter for N times is saved, and the time for changing the cutters of all the workpieces 6 to be processed on the fixture base 5 is K x t.

This embodiment adopts to treat a plurality of machined parts 6 with the cutter as the unit and process, has saved tool changing time, avoids using the work piece to add man-hour one by one as the unit, when the different kind work piece of needs processing, need transfer out the same cutter many times, and change a machined part kind every time, must spend a large amount of time carry out calibration work such as tool changing, tool setting and location for CNC's effective process time greatly reduced causes the extremely extravagant defect of processing resource.

As shown in fig. 1 to 5, sorting the respective sub-program sets across the workpiece to form a main processing program includes:

In the embodiment, all the types of the tools required by the workpieces to be machined 6 on the same fixture base 5 are collected, the sub-machining programs corresponding to the types of the tools are sorted according to a large tool to a small tool and a coarse tool to a fine tool to form a main machining program for cross-workpiece machining, so that the same tool sequentially machines the workpieces to be machined 6, the basic principle of CNC machining tool selection is followed, and the machining effect is good.

In one embodiment, each sub-process corresponds to a coordinate system, and the coordinate systems are independent of each other. In the prior art, a method generally used for mass production is to carry out multiple pieces of processing by using the same working coordinate system when an array is made in an NC program, but because the joint of a clamp and a machine tool has errors, the program position and the product position also have errors. And the types of workpieces and clamps need to be frequently replaced in the process of multi-variety small-batch production, so that the processing effect is poor and the yield of the processed workpieces is poor. The invention ensures that the sub-processing program corresponding to each type of cutter used by the workpiece to be processed corresponds to an independent coordinate system, and parameters can be effectively modified and adjusted according to conditions so as to ensure the processing quality.

In one embodiment, a plurality of jigs 2 containing workpieces 6 to be processed are placed on the jig base 5. The plurality of pieces of the member to be processed 6 are the same or different in kind, and/or the plurality of pieces of the member to be processed 6 are the same or different in size. In the embodiment, the plurality of workpieces 6 to be processed are processed by using the tool as a unit, so that the limitation of the number, the types and the sizes of the workpieces 6 to be processed is avoided, the plurality of workpieces 6 to be processed with different types and sizes can be processed simultaneously, and the application range is expanded.

In one embodiment, as shown in fig. 6, six clamps 2 with the parts 6 to be processed are placed on the clamp base 5, and the six parts 6 to be processed are of the same kind or the six parts 6 to be processed are processed by the same tool.

Wherein T01 to T24 represent tool numbers required to be used in the corresponding machining process, C61 to C66 represent six workpieces required to be machined, PC61 to PC66 represent a machining program generated for each workpiece, and O6101 to O6624 represent a subroutine in which the corresponding workpiece to be machined uses the corresponding tool, taking O6101 as an example, which means that the workpiece G61 uses T01 to perform machining.

Conventionally, when a plurality of workpieces are machined by scheduling the machining process in units of the workpieces, the machining sequence is as shown in fig. 7, and the machining processes in the rows cannot be combined, so that the whole machining schedule cannot be optimized and 144 times of tool replacement is required.

After the optimization of the invention, all the processing programs of the workpieces 6 to be processed on the clamp base 5 are divided into a plurality of sub-processing programs according to the types of the tools, all the sub-processing programs are collected, the sub-processing programs with the same tool type are screened out by taking the tools as units, and a sub-program set is formed, and based on the tool types of the sub-processing program sets, the sub-processing program sets are subjected to cross-workpiece sequencing by adopting the sequence from a large tool to a small tool and from a coarse tool to a fine tool to form a main processing program, so that the processing sequence can be processed in a transverse sequence as shown in figure 7, and the tools used in each row are the same and the processes can be carried out successively, so that the times of tool replacement can be greatly reduced after the optimization of the processes, and only 24 times are needed.

As shown in fig. 8, the main machining program in the conventional art has only 6 sub-machining programs classified according to the workpiece to be machined, and it is difficult to adjust the main machining program according to the error existing between the tool holder and the machine tool. After the optimization of the invention, because each type of cutter used by the workpiece to be machined has the corresponding task established as a subprogram, the number of tasks which can be adjusted is increased to 144, and parameters can be effectively adjusted and modified according to conditions so as to ensure the machining quality.

In one embodiment, as shown in fig. 9, six clamps 2 with workpieces 6 to be machined are placed on the clamp base 5, wherein three workpieces 6 to be machined are of the same kind or are machined with a different tool type than the other three workpieces.

Wherein, T01 to T14 represent tool numbers required to be used in the corresponding machining process, C61 to C66 represent 6 workpieces to be machined that need to be machined, PC61 to PC66 represent production tasks generated by each workpiece to be machined, and O6101 to O6614 represent subroutines of the corresponding workpieces to be machined using the corresponding tool, taking O6101 as an example, which means that the workpiece G61 uses T01 to perform a subroutine of machining.

Conventionally, when a plurality of workpieces are machined by performing process scheduling on a workpiece basis, the machining sequence is longitudinally processed as shown in fig. 10, and the processes between rows cannot be combined, so that the entire machining schedule cannot be optimized and the tool needs to be replaced 72 times.

After the optimization of the invention, all the processing programs of the workpieces 6 to be processed on the clamp base 5 are divided into a plurality of sub-processing programs according to the types of the tools, all the sub-processing programs are collected, the sub-processing programs with the same tool type are screened out by taking the tools as units, and a sub-program set is formed, and based on the tool types of the sub-processing program sets, the sub-processing program sets are subjected to cross-workpiece sequencing by adopting the sequence from a large tool to a small tool and from a coarse tool to a fine tool to form a main processing program, so that the processing sequence can be processed in a transverse sequence as shown in figure 10, and the tools used in each row are the same and the processes can be carried out successively, so that the times of tool replacement can be greatly reduced after the optimization of the processes, and only 14 times of tool replacement are needed.

As shown in fig. 1 to 5, the piece 6 to be worked is mounted on the jig 2, previously comprising: adopting a plurality of CNC to process;

installing a cutter with corresponding machining precision in a tool magazine of the CNC based on the machining precision of the CNC;

and summarizing all CNC tool magazines to form a tool magazine system, wherein the tool magazine system comprises all tools required for finishing all workpieces to be machined.

Specifically, in one embodiment, each CNC tool magazine is configured with a tool type that covers all machining accuracy requirements. In other embodiments, a rough machining tool and a finish machining tool may be mixed in each CNC.

Specifically, as shown in fig. 11, the workpiece 6 to be machined includes a type a and a type B, each of the types a and B requires 24 tools for machining, and if the tool needs to be produced simultaneously, the CNC tool magazine in charge needs to be provided with tools required for machining two workpieces simultaneously, that is, a total of 28 tools are required.

As shown in fig. 1 to 5, the control device 4 sends a feeding operation command to the robot 1, and the robot 1 sequentially puts a plurality of jigs 2 loaded with workpieces 6 to be processed on a jig base 5 in the CNC3 based on the feeding operation command, including:

the control device 4 sends a feeding operation instruction to the robot 1, the robot 1 grabs a clamp provided with a workpiece 6 to be machined based on the feeding operation instruction, and the robot 1 reads information of the workpiece 6 to be machined and sends the information to the control device 4;

the control device 4 acquires the required processing precision of the workpiece 6 to be processed based on the information of the workpiece 6 to be processed;

the control device 4 resends the feeding operation instruction to the robot 1 based on the machining precision required by the workpiece 6 to be machined, and the robot 1 puts the clamp 2 provided with the workpiece 6 to be machined on the clamp base 5 of the CNC3 according with the machining precision;

In one embodiment, as shown in fig. 5, the robot 1 grabs the jig with the workpiece 6 to be processed based on the feeding operation command, and the robot 1 reads the information of the workpiece 6 to be processed and sends the information to the control device 4, including:

the robot 1 is provided with a scanning device for identifying the graphic code, and when the robot 1 grabs the clamp 2 provided with the workpiece 6 to be processed, the scanning device reads the graphic code of the workpiece 6 to be processed and sends the identification information of the graphic code to the control device 4.

In this embodiment, the matched CNC3 can be selected according to the machining precision required by the workpiece 6 to be machined, and the machining instruction of the CNC3 is dynamically generated by the control device 4, so that the flexibility of the CNC3 can be obviously improved, and the CNC of the service and the machining program instruction of the CNC of the service can be conveniently and timely adjusted according to the change of the type of the workpiece 6 to be machined. And the robot 1 is used for conveying the workpieces 6 to be processed, and the control command of the robot 1 is dynamically generated by the control device 4, so that the robot is more suitable for conveying various small-batch workpieces.

Example 2

As shown in fig. 13, the present embodiment provides a CNC processing system for a plurality of kinds of small lot processed parts for implementing the CNC processing method for a plurality of kinds of small lot processed parts described in embodiment 1, including:

the splitting module 7 is used for splitting all the machining programs of the to-be-machined parts in the CNC into a plurality of sub-machining programs according to the types of the cutters;

the screening module 8 is used for summarizing all the sub-processing programs, screening the sub-processing programs of the same cutter type by taking the cutter as a unit, and forming a sub-program set;

the sequencing module 9 is used for sequencing each subroutine set across workpieces to form a main processing program;

and the machining module 10 is used for sending a machining operation instruction to the CNC based on the main machining program so that the CNC machines the workpiece to be machined in the machine.

The CNC machining system of many varieties small batch volume machined part that this embodiment provided avoids a plurality of machined parts of treating to carry out many processing together and need transfer same cutter many times man-hour, has saved the time of tool changing, tool setting and location, has improved machining efficiency.

Example 3

A computer-readable storage medium having stored thereon a computer program which, when executed, implements the CNC processing method of implementing a plurality of varieties of small-lot workpieces as described in embodiment 1.

It will be understood by those skilled in the art that all or part of the steps of implementing the method provided in embodiment 1 may be implemented by hardware associated with a computer program, which may be stored in a computer-readable storage medium and executed to perform the steps comprising the method provided in embodiment 1; the storage medium includes various media capable of storing program codes, such as ROM, RAM, magnetic disk, U-disk, memory card or optical disk.

Example 4

The embodiment provides a CNC machining device for multiple varieties of small-batch machined parts, which comprises a memory and a processor; the memory is used for storing a computer program; the processor is connected to the memory for executing the computer program stored in the memory to cause the CNC processing apparatus for machining the multiple variety small lot workpiece to perform the CNC machining method for machining the multiple variety small lot workpiece as described in embodiment 1.

Specifically, the memory includes various media that can store program codes, such as ROM, RAM, magnetic disk, U-disk, memory card, or optical disk.

Preferably, the processor may be a general purpose processor, including a central processing unit, a network processor, or the like; but also be a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components.

It will be understood by those skilled in the art that the modules or steps of the present invention described above can be implemented by a general purpose computing device, they can be centralized in a single computing device or distributed over a network of multiple computing devices, and they can alternatively be implemented by program code executable by a computing device, so that they can be stored in a storage device and executed by a computing device, or they can be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof can be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The CNC machining method of the multiple-variety small-batch machined parts is characterized by comprising the following steps of:

2. The CNC processing method of the multi-variety small-lot processed workpiece according to claim 1, wherein the sorting of the respective subroutine sets across the workpiece to form the main processing program comprises:

3. The CNC machining method for machining workpieces of various types and small batches according to claim 1, wherein each sub-machining program corresponds to a coordinate system, and the coordinate systems are independent of each other.

4. The CNC processing method of the multi-variety small-lot processed workpiece according to claim 1, characterized in that the processing program of all the processed workpieces located in the CNC is split into a plurality of sub-processing programs according to the tool type, which previously includes: feeding by adopting a robot;

mounting a workpiece to be processed on a clamp;

sending a feeding operation instruction to the robot;

5. The CNC machining method of various kinds of workpieces in small lot size according to claim 4, characterized in that, based on the main machining program, a machining operation command is sent to the CNC, so that the CNC machines the workpieces to be machined in the machine, and then, the method comprises:

6. The CNC machining method of various small-lot workpieces according to claim 4, wherein the workpiece to be machined is mounted on a fixture, and the method comprises the following steps: processing by adopting a plurality of CNC;

7. The CNC machining method of various small-lot workpieces according to claim 6, wherein the robot sequentially puts a plurality of jigs loaded with workpieces to be machined on a jig base of the CNC based on the feeding operation command, comprises:

based on the machining precision required by the workpiece to be machined, a loading operation instruction is sent to the robot again, and the robot places the clamp provided with the workpiece to be machined on a clamp base of the CNC, wherein the clamp base accords with the machining precision;

8. A CNC processing system of a multi-variety small lot processed workpiece for implementing the CNC processing method of a multi-variety small lot processed workpiece of any one of claims 1 to 7, characterized by comprising:

9. Computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed, implements the CNC machining method of a multi-variety small-lot workpiece according to any one of claims 1 to 7.

10. The CNC machining device for the multiple varieties of workpieces in small batches is characterized by comprising a memory and a processor;

the memory is used for storing a computer program;