CN115213740A - Multi-machine-tool combined flexible die insert machining system and machining method - Google Patents
Multi-machine-tool combined flexible die insert machining system and machining method Download PDFInfo
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 238000003672 processing method Methods 0.000 claims abstract description 3
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- 238000000465 moulding Methods 0.000 claims description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/10—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of magazines
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a multi-machine-tool combined flexible die insert processing system and a processing method, comprising a detection unit positioned at the upstream of a processing section; an inventory unit downstream of the processing section; the device comprises a transportation unit and a machining unit which are positioned at a machining section, wherein the transportation unit comprises a transportation guide rail and a robot arm arranged on the transportation guide rail, the machining unit comprises numerical control machine tools positioned at two sides of the transportation guide rail, the numerical control machine tools positioned at two sides of the transportation guide rail are distributed in a staggered mode so that all the numerical control machine tools form a zigzag structure in a combined mode, and a monitoring unit is arranged; and the control unit comprises a central processing module. The flexible die insert processing system improves the processing precision and efficiency of the die insert and improves the production capacity of various die insert models.
Description
1 technical field
The invention relates to the technical field of die insert machining, in particular to a multi-machine-tool combined flexible die insert machining system and a multi-machine-tool combined flexible die insert machining method.
2 background of the invention
The die insert production has extremely high requirements on quality and efficiency, and the manufacturing efficiency and flexibility of the die insert production directly influence the survival prospect of a factory. The existing die insert manufacturing has the following problems: the production saturation rate of the multi-model die inserts is low, and different specific different processing machines are needed during single-side processing of different model die inserts, so that the production cost is increased, and flexible processing of different sizes of die inserts can not be realized on the same production line.
In view of the above, there is a need for a method of machining a compliant die insert that addresses or at least mitigates the above-mentioned deficiencies.
Disclosure of the invention
The flexible die insert processing method provided by the invention solves the technical problems that the existing die insert processing center only can process a single die insert and has low production efficiency.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
a multi-machine-bed combined flexible die insert processing system comprises a detection unit positioned at the upstream of a processing section, wherein the detection unit is used for acquiring the blank size, the blank shape and the blank zero position of the current insert blank; an inventory unit downstream of the processing section for storing a current die insert formed after the current insert blank is processed; the system comprises a transportation unit and a machining unit which are positioned at a machining section, wherein the transportation unit comprises a transportation guide rail and a robot arm arranged on the transportation guide rail, the machining unit comprises numerical control machine tools positioned on two sides of the transportation guide rail, the numerical control machine tools positioned on two sides of the transportation guide rail are distributed in a staggered mode so that all the numerical control machine tools are combined to form a zigzag structure, and a monitoring unit is used for acquiring the current working state of the numerical control machine tools and comprises a fault state, a processing procedure and current machining precision; the control unit comprises a central processing module, and the central processing module is used for determining a target forming grade according to the blank size, the blank appearance and the blank zero position of the current insert blank; the central processing module is also used for determining the current flexible processing strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the zero point position of the current insert blank and the current working state of each machine tool positioned at the downstream, the current flexible processing strategy comprises a processing procedure and a processing path, the processing procedure comprises a rough processing procedure, a semi-finishing procedure and a finishing procedure, the processing path comprises a feeding path, a processing path and a blanking path, and the processing path adopts a zigzag path; the central processing module is also used for driving the robot arm to work according to the current flexible processing strategy.
Further, the target molding grade comprises a first-grade insert, a second-grade insert and a third-grade insert, the inventory unit comprises a first storage rack for storing the first-grade insert, a second storage rack for storing the second-grade insert and a third storage rack for storing the third-grade insert, and the first storage rack, the second storage rack and the third storage rack are arranged in parallel and at intervals.
The central processing module is further used for judging whether the current material to be processed is a target processing object according to the current material morphology, and if the material to be processed is the target processing object, determining that the material to be processed is the current insert blank.
Furthermore, the multi-machine tool combined flexible die insert processing system further comprises a tool magazine unit, at least two robot arms are respectively arranged on the transport guide rail, and the central processing module is further used for processing the numerical control processing machine tools in different current working states according to preset priorities when the robot arms are idle and are not interfered: the first priority is that when the robot arm is idle and not interfered, the robot arm is controlled to change the tool of the numerical control machine tool with the damaged tool; and the second priority is that the robot arm is controlled to change the tool of the numerical control machine tool with insufficient tool precision when the robot arm is idle and not interfered.
Further, the control unit further comprises a processing strategy updating module, and the processing strategy updating module is used for updating the current flexible processing strategy when the processing error of the current flexible processing strategy is larger than the preset error or when the current flexible processing strategy is interfered.
Further, a checking unit is included upstream of the inventory unit for checking whether the current die insert is acceptable, and the central processing module is further configured to control the robotic arm to load the acceptable current die insert onto the inventory unit after the current die insert is acceptable.
The invention also provides a multi-machine-bed combined flexible die insert machining method, which is used for the multi-machine-bed combined flexible die insert machining system and comprises the following steps: s10, obtaining blank attributes of the current insert blank, wherein the blank attributes comprise the size of the blank, the shape of the blank and the zero position of the current insert blank; s20, determining a target forming grade based on the size and the shape of the blank, wherein the target forming grade comprises a first-grade insert, a second-grade insert and a third-grade insert; s30, determining a current flexible machining strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the zero position of the current insert blank and the current working state of each machine tool positioned at the downstream, wherein the current flexible machining strategy comprises a machining process and a machining path, the machining process comprises a rough machining process, a semi-finish machining process and a finish machining process, the machining path comprises a feeding path, a machining processing path and a discharging path, and the machining processing path adopts a zigzag path; s41, acquiring the preprocessing precision of the preprocessing machine tool of the current insert blank in the next processing procedure under the current flexible processing strategy; s42, if the preprocessing precision of the preprocessing machine tool does not meet the preset processing requirement, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy; s43, if the preprocessing precision of the preprocessing machine tool meets the preset processing requirement, entering a next-procedure machine tool for machining according to the current flexible processing strategy; steps S41 to S43 are repeated until the current insert blank is machined into the current die insert.
Further, the method also comprises the following steps: s50, judging whether the current die insert meets the machining precision requirement; and S60, if the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to a storage rack of a corresponding grade through a robot arm.
Further, the method also comprises the following steps: when the robot arm is in an idle state, acquiring a machine tool with a worn cutter as a machine tool to be maintained, determining the machine tool to be maintained with the smallest cutter changing stroke when the robot arm is at the current position as a target maintenance machine tool, and changing the cutter of the target maintenance machine tool through the robot arm.
Further, step S42 specifically includes: and if the preprocessing precision of the preprocessing machine tool does not meet the preset processing precision requirement or the waiting time for the preprocessing machine tool is longer than the preset time, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy.
The invention has the following beneficial effects:
the invention provides a multi-machine-bed combined flexible die insert machining system which comprises a detection unit, a stock unit, a transportation unit, a machining unit, a monitoring unit and a control unit, wherein numerical control machining tools of the machining unit are distributed on two sides of a transportation guide rail in a zigzag manner, so that flexible combination of a plurality of numerical control machining tools is realized, the transportation path of a robot arm is reduced, and the machining production efficiency of a die insert is improved; through the intelligent combination of detecting element, stock unit, transportation unit, machining unit, monitoring unit and the control unit, form current flexible processing strategy, realize many lathe, the real-time supervision, analysis and the feedback of multiplex condition processing, realize the flexible intelligent processing of a plurality of sizes die inserts, improved die insert machining efficiency, promoted the productivity effect of polytypic die insert.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
4 description of the drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a multi-machine combination, compliant die insert machining system in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart of a method of machining a multi-bed combination compliant die insert in accordance with an embodiment of the present invention.
Detailed description of the preferred embodiments
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
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 directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions relating to "first", "second", etc. in the present invention are used 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 the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a multi-machine-bed combined flexible die insert machining system, which includes a detection unit located at the upstream of a machining section, the detection unit being configured to obtain a blank size, a blank shape, and a blank zero point position of a current insert blank; an inventory unit downstream of the machining section for storing current die inserts formed after the current insert blank is machined; the system comprises a transportation unit and a machining unit which are positioned at a machining section, wherein the transportation unit comprises a transportation guide rail and a robot arm arranged on the transportation guide rail, the machining unit comprises numerical control machine tools positioned on two sides of the transportation guide rail, the numerical control machine tools positioned on two sides of the transportation guide rail are distributed in a staggered mode so that all the numerical control machine tools are combined to form a zigzag structure, and a monitoring unit is used for acquiring the current working state of the numerical control machine tools and comprises a fault state, a processing procedure and current machining precision; the control unit comprises a central processing module, and the central processing module is used for determining a target forming grade according to the blank size, the blank appearance and the blank zero position of the current insert blank; the central processing module is also used for determining the current flexible processing strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the zero point position of the current insert blank and the current working state of each machine tool positioned at the downstream, the current flexible processing strategy comprises a processing procedure and a processing path, the processing procedure comprises a rough processing procedure, a semi-finishing procedure and a finishing procedure, the processing path comprises a feeding path, a processing path and a blanking path, and the processing path adopts a zigzag path; the central processing module is also used for driving the robot arm to work according to the current flexible processing strategy.
The invention provides a multi-machine-bed combined flexible die insert machining system which comprises a detection unit, a stock unit, a transportation unit, a machining unit, a monitoring unit and a control unit, wherein numerical control machining tools of the machining unit are distributed on two sides of a transportation guide rail in a zigzag manner, so that flexible combination of a plurality of numerical control machining tools is realized, the transportation path of a robot arm is reduced, and the machining production efficiency of a die insert is improved; through the intelligent combination of detecting element, stock unit, transportation unit, machining unit, monitoring unit and the control unit, form current flexible processing strategy, realize many lathe, the real-time supervision, analysis and the feedback of multiplex condition processing, realize the flexible intelligent processing of a plurality of sizes die inserts, improved die insert machining efficiency, promoted the productivity effect of polytypic die insert.
Optionally, the detection unit includes a three-dimensional laser scanning positioning module and a graph processing module, and the detection unit is configured to determine a three-dimensional size and a blank zero point position of any current insert blank, and the detection unit is used as a basis for the control unit to generate a current flexible machining strategy, where the current flexible machining strategy includes a machining path, a machining process, a machining time, and a number of numerically controlled machine tools, where the feeding path is a path through which a base of the robot arm moves in a straight line and loads a blank to be machined from the material table to an initial machining station of the machining unit under the assistance of a movable arm of the robot arm, the machining process path is a process path through which the base of the robot arm moves in a straight line and machines the current insert blank to form a current die insert under the assistance of the movable arm of the robot arm, and the blanking path is a path through which the base of the robot arm moves in a straight line and loads the current die insert from the machining completion station to the stock storage unit under the assistance of the movable arm.
Further, in order to distinguish and take and place the current die insert, the target forming grade comprises a first-grade insert, a second-grade insert and a third-grade insert, the storage unit comprises a first storage rack for storing the first-grade insert, a second storage rack for storing the second-grade insert and a third storage rack for storing the third-grade insert, and the first storage rack, the second storage rack and the third storage rack are arranged in parallel and are arranged at intervals.
Preferably, the downstream of the processing section is provided with a first storage rack, a second storage rack and a third storage rack in parallel, the first storage rack is rotatably arranged around the rotation axis of the first storage rack, the second storage rack is rotatably arranged around the rotation axis of the second storage rack, the third storage rack is rotatably arranged around the rotation axis of the third storage rack, in order to save the operation time of the robot arm, the blanking path is arranged in a straight line,
the central processing module is further used for judging whether the current material to be processed is a target processing object according to the current material morphology, and if the material to be processed is the target processing object, determining that the material to be processed is the current insert blank. Optionally, the recognition unit includes a scanning camera, an image acquisition card, and a CMOS sensor, and the central processing module is configured to perform recognition analysis on the acquired dimensions and features of the die insert, and determine whether the die insert is a required processing object.
Further, if the material to be processed is not the target processing object, the material to be processed is transferred to the outside of the processing center through the robot arm.
Furthermore, the multi-machine tool combined flexible die insert processing system further comprises a tool magazine unit, at least two robot arms are respectively arranged on the transport guide rail, and the central processing module is further used for processing the numerical control processing machine tools in different current working states according to preset priorities when the robot arms are idle and are not interfered: the first priority is that when the robot arm is idle and not interfered, the robot arm is controlled to change the tool of the numerical control processing machine tool with the damaged tool; and the second priority is that the robot arm is controlled to change the tool of the numerical control machine tool with insufficient tool precision when the robot arm is idle and not interfered. In the invention, when the flexible processing strategy is set, the self-adaptive flexible processing can be carried out according to the processing precision of the numerical control processing machine tool, but the neglect measure is taken for the numerical control processing machine tool with damaged tool, so the tool change of the numerical control processing machine tool with damaged tool is preferentially carried out, the working quantity of the numerical control processing machine tool can be provided as much as possible, and the working efficiency is further improved.
Further, the control unit further comprises a processing strategy updating module, and the processing strategy updating module is used for updating the current flexible processing strategy when the processing error of the current flexible processing strategy is larger than the preset error or when the current flexible processing strategy is interfered. Optionally, the current flexible processing strategy is updated by adopting a machine learning model, and the current flexible processing strategy is updated in time when the current flexible processing strategy is blocked, so that processing interruption is avoided.
Further, a checking unit is included upstream of the inventory unit for checking whether the current die insert is acceptable, and the central processing module is further configured to control the robotic arm to load the acceptable current die insert onto the inventory unit after the current die insert is acceptable. Optionally, the central processing module is further configured to control the robot arm to load the qualified current nest structure onto the material table after the current nest structure is unqualified.
The multi-machine combined flexible die insert processing system comprises the following steps in the single die insert production process: firstly, acquiring the blank size, the blank appearance and the blank zero position of a current insert blank through field scanning of a detection unit, generating a current flexible production strategy according to a target forming grade and target machining precision, a cutter model corresponding to a machine tool, the number of the machine tools, a machining process and the like, acquiring three-dimensional size information of the current insert blank by reading a radio frequency module of the current insert blank, scanning and binding three-dimensional profile data of the current insert blank, recording the blank number, the L-angle mark and the zero XYZ coordinate value of the current insert blank, and automatically calculating the size difference, the required process, the required time, the number of the machine tools and the machining route of the target forming size and the current insert blank; secondly, after the current insert blank is clamped on the tray, the transmission unit loads the current insert blank to a numerical control machine tool, an included angle formed by the connection of two adjacent numerical control machine tools forms an acute angle, after the robot reaches the numerical control machine tool, the machine tool is automatically controlled to open an automatic door, a zero point positioning system is unlocked, the tray with the current insert blank is placed on the zero point positioning system of the numerical control machine tool by a movable arm of a robot arm, and the zero point positioning system is locked after the robot arm completely exits from the machine tool; thirdly, starting a processing strategy updating module, taking the initial processing strategy as a basic strategy by the processing strategy updating module, training and learning the procedure forming error, outputting a secondary strategy and the basic strategy error, if the error between the secondary strategy and the basic strategy is more than 5%, iterating the current flexible processing strategy by using the secondary strategy until convergence, and otherwise, adopting the basic strategy to continue processing; fourthly, if the current flexible machining strategy needs to be updated so as to skip or repeat a certain procedure step, starting a closed-circuit unit, cutting off a machining information data stream between machine tools in adjacent procedures, and transmitting the machining information of the die insert and the updated machining strategy to a robot arm, wherein the robot arm clamps the die insert and transports the die insert to the adjacent machine tool positioned on the guide rail at the same side until the machining requirements are met; after the current working procedure is completed, the workpiece is conveyed to an inspection unit for measurement, if the error requirement is met, the workpiece is conveyed to an inventory unit, and if the size requirement is not met, the workpiece is processed again.
Referring to fig. 2, the present invention provides a method for machining a flexible multi-machine-bed combined flexible die insert, which is used in the multi-machine-bed combined flexible die insert machining system, and includes the following steps: s10, obtaining blank attributes of the current insert blank, wherein the blank attributes comprise the size of the blank, the shape of the blank and the zero position of the current insert blank; s20, determining a target forming grade based on the size and the shape of the blank, wherein the target forming grade comprises a first-grade insert, a second-grade insert and a third-grade insert; s30, determining a current flexible machining strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the zero position of the current insert blank and the current working state of each machine tool positioned at the downstream, wherein the current flexible machining strategy comprises a machining process and a machining path, the machining process comprises a rough machining process, a semi-finishing process and a finishing process, the machining path comprises a feeding path, a machining processing path and a blanking path, and the machining processing path adopts a zigzag path; s41, acquiring the preprocessing precision of the preprocessing machine tool of the current insert blank in the next processing procedure under the current flexible processing strategy; s42, if the preprocessing precision of the preprocessing machine tool does not meet the preset processing requirement, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy; s43, if the preprocessing precision of the preprocessing machine tool meets the preset processing requirement, entering a next procedure machine tool for machining according to the current flexible processing strategy; and repeating the steps S41 to S43 until the current insert blank is processed into the current die insert.
According to the multi-machine-tool combined flexible die insert machining method, under the condition that the base of the robot arm moves linearly, the Z-shaped machining path is adopted for the current insert blank through the matching of each numerical control machine tool, so that the flexible combination of a plurality of numerical control machine tools can be realized, the repeated transportation of guide rail robots is reduced, and the production efficiency of a factory is improved; the current flexible processing strategy can be updated at any time according to the processing working condition, the flexible processing of the die insert and the production automation are realized, the labor intensity of workers is effectively reduced, and the labor cost of a factory is greatly reduced.
Further, the method also comprises the following steps: s50, judging whether the current die insert meets the machining precision requirement; and S60, if the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to a storage rack of a corresponding grade through a robot arm. In the invention, the unified die inserts are stored by adopting the scheme that if the current die inserts meet the machining precision requirement, the current die inserts are delivered out of the warehouse to the storage racks with corresponding levels through the robot arms, so that the management and the transportation are convenient.
Further, the method also comprises the following steps: when the robot arm is in an idle state, acquiring a machine tool with a worn cutter as a machine tool to be maintained, determining the machine tool to be maintained with the minimum cutter changing stroke as a target maintenance machine tool when the robot arm is at the current position, and changing the cutter of the target maintenance machine tool through the robot arm. In the invention, the numerical control machine tool is maintained in time, so that continuous machining is facilitated.
Further, step S42 specifically includes: and if the preprocessing precision of the preprocessing machine tool does not meet the preset processing precision requirement or the waiting time for the preprocessing machine tool is longer than the preset time, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy. It can be understood that the preset time duration can be 1 minute, can be other times such as 2 minutes, and when the machine tool needs to wait for a long time or is damaged and is offline in the next procedure, the current flexible machining strategy is updated in time, so that machining interruption is avoided, and the machining efficiency is high.
Further, S50 specifically includes: judging the insert molding grade of the current die insert and judging whether the current die insert meets the machining precision requirement; s60 specifically comprises the following steps: if the insert molding grade of the current die insert is arranged on the first-grade insert and the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to a first storage rack through a robot arm: if the insert molding grade of the current die insert is set in the second-grade insert and the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to a second storage rack through a robot arm; if the insert molding grade of the current die insert is set on the third-grade insert and the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to the third storage rack through the robot arm,
it can understand, follow rectilinear movement and through the digging arm activity of robot arm and then carry out the warehouse with current die insert to the storage frame of corresponding grade through the base of robot arm, in order to improve the warehouse-out efficiency, be convenient for distinguish the current die insert of management various grades and reduce robot arm's removal displacement volume, still include the step: acquiring the stock quantity of one side of a first stock shelf, and controlling the first stock shelf to rotate around a rotation axis to enable one side to receive a die insert conveyed by a robot arm if the stock quantity of one side of the first stock shelf reaches a preset stock quantity; acquiring the stock quantity of one side of a second stock shelf, and controlling the second stock shelf to rotate around a rotation axis to enable one side to receive a die insert conveyed by a robot arm if the stock quantity of one side of the second stock shelf reaches a preset stock quantity; and acquiring the stock quantity of one side of the third stock shelf, and controlling the third stock shelf to rotate around the rotation axis so that the controlled side receives the die insert conveyed by the robot arm if the stock quantity of one side of the third stock shelf reaches the preset stock quantity. According to the invention, the movable base of the robot arm moves linearly on the conveying guide rail, the die inserts of different types are processed in a self-adaptive manner and stored on the corresponding storage racks, and the generation efficiency of the die inserts is high.
The present invention is not limited to the above-described embodiments, but various modifications and changes can be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A multi-machine-tool combined flexible die insert processing system is characterized by comprising
The detection unit is positioned at the upstream of the machining section and is used for acquiring the blank size, the blank shape and the blank zero point position of the current insert blank;
an inventory unit downstream of said processing station for storing current die inserts formed after said current insert blank processing;
the transportation unit comprises a transportation guide rail and a robot arm arranged on the transportation guide rail, the machining unit comprises numerical control machine tools arranged on two sides of the transportation guide rail, the numerical control machine tools arranged on two sides of the transportation guide rail are distributed in a staggered mode so that all the numerical control machine tools form a zigzag structure,
the monitoring unit is used for acquiring the current working state of the numerical control machining tool, and the current working state comprises a fault state, a processing procedure and the current machining precision;
the control unit comprises a central processing module, and the central processing module is used for determining a target forming grade according to the blank size, the blank appearance and the blank zero point position of the current insert blank; the central processing module is further configured to determine a current flexible machining strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the current insert blank zero point position, and the current working state of each downstream machine tool, where the current flexible machining strategy includes a machining process and a machining path, the machining process includes a rough machining process, a semi-finishing process, and a finishing process, the machining path includes a feeding path, a machining processing path, and a discharging path, and the machining processing path adopts a zigzag path; the central processing module is also used for driving the robot arm to work according to the current flexible processing strategy.
2. The multi-machine-combination, flexible die insert machining system of claim 1,
the target molding grade comprises a first grade insert, a second grade insert and a third grade insert,
the inventory unit comprises a first inventory shelf for storing first-level inserts, a second inventory shelf for storing second-level inserts and a third inventory shelf for storing third-level inserts, and the first inventory shelf, the second inventory shelf and the third inventory shelf are arranged in parallel and at intervals.
3. The multi-machine-combination, flexible die insert machining system of claim 1,
the device also comprises an identification unit positioned at the upstream of the detection unit, the identification unit is used for acquiring the current material appearance of the current material to be processed,
the central processing module is further configured to determine whether the current material to be processed is a target processing object according to the current material morphology, and determine that the material to be processed is the current insert blank if the material to be processed is the target processing object.
4. A multi-machine-tool-combination, flexible die insert tooling system according to any of claims 1-3,
the multi-machine tool-integrated, flexible die insert machining system further comprises a tool magazine unit,
at least two robot arms are respectively arranged on the transportation guide rail,
the central processing module is also used for processing the numerical control machine tools in different current working states according to preset priority levels when the robot arm is idle and is not interfered:
the first priority is that the robot arm is controlled to change the tool of the numerical control machining machine tool damaged by the tool when the robot arm is idle and not interfered;
and the second priority is used for controlling the robot arm to change the tool of the numerical control machining machine tool with insufficient tool precision when the robot arm is idle and is not interfered.
5. A multi-machine-tool-combination, flexible die insert machining system according to claim 4,
the control unit further comprises a processing strategy updating module, and the processing strategy updating module is used for updating the current flexible processing strategy when the processing error of the current flexible processing strategy is larger than a preset error or when the current flexible processing strategy is interfered.
6. A multi-machine-tool-combination, flexible die insert machining system according to claim 4,
further comprising a checking unit upstream of said inventory unit for checking whether said current die insert is acceptable,
the central processing module is further used for controlling the robot arm to load the qualified current die insert onto the inventory unit after the current die insert is qualified.
7. A multi-bed combination, flexible nest processing method for the multi-bed combination, flexible nest processing system of any one of claims 4 to 6, comprising the steps of:
s10, obtaining blank attributes of the current insert blank, wherein the blank attributes comprise the blank size, the blank appearance and the zero position of the current insert blank;
s20, determining a target forming grade based on the size and the shape of the blank, wherein the target forming grade comprises a first-grade insert, a second-grade insert and a third-grade insert;
s30, determining a current flexible machining strategy of the current insert blank according to the blank size, the blank shape, the target forming grade, the zero point position of the current insert blank and the current working state of each machine tool at the downstream, wherein the current flexible machining strategy comprises a machining process and a machining path, the machining process comprises a rough machining process, a semi-finishing process and a finishing process, the machining path comprises a feeding path, a machining processing path and a blanking path, and the machining processing path adopts a zigzag path;
s41, acquiring the preprocessing precision of the preprocessing machine tool of the current insert blank in the next processing procedure under the current flexible processing strategy;
s42, if the preprocessing precision of the preprocessing machine tool does not meet the preset processing requirement, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy;
s43, if the preprocessing precision of the preprocessing machine tool meets the preset processing requirement, entering a next-procedure machine tool for machining according to the current flexible processing strategy;
repeating steps S41 to S43 until the current insert blank is machined into the current die insert.
8. The multi-machine-combination, compliant die insert machining method of claim 7,
further comprising the steps of:
s50, judging whether the current die insert meets the machining precision requirement;
and S60, if the current die insert meets the machining precision requirement, the current die insert is delivered out of the warehouse to a storage rack of a corresponding grade through a robot arm.
9. The multi-machine-combination, compliant die insert machining method of claim 8,
further comprising the steps of:
when the robot arm is in an idle state, acquiring a machine tool with a worn cutter as a machine tool to be maintained, determining that the machine tool to be maintained has the minimum cutter changing stroke when the robot arm is at the current position as a target maintenance machine tool, and changing the cutter of the target maintenance machine tool through the robot arm.
10. The multi-machine-combination, compliant die insert machining method of claim 8,
step S42 specifically includes:
and if the preprocessing precision of the preprocessing machine tool does not meet the preset processing precision requirement or if the waiting time for waiting the preprocessing machine tool is longer than the preset time, ignoring the preprocessing machine tool and entering the step 30 to update the current flexible processing strategy.
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| GB1363503A (en) * | 1970-08-20 | 1974-08-14 | Heidelberger Druckmasch Ag | Machining installation |
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| GB1363503A (en) * | 1970-08-20 | 1974-08-14 | Heidelberger Druckmasch Ag | Machining installation |
| SU1431915A1 (en) * | 1986-05-30 | 1988-10-23 | Воронежское Специальное Конструкторское Бюро Кузнечно-Прессовых Машин И Автоматических Линий | Flexible manufacturing module for cutting blanks from round rods and square rolled stock |
| JPH1190791A (en) * | 1997-09-11 | 1999-04-06 | Toyoda Mach Works Ltd | Flexible machining device and pallet therefor |
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| CN115213740B (en) | 2023-08-18 |
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