Show algebra to accuse crucial technology

High speed changes a technology to want to realize high speed of numerical control device to change, ask numerical control system can undertake to the machine program that makes by tiny block high speed is handled above all, give the mobile amount of servo electric machinery in order to calculate, at the same time high speed of function of requirement servo report spends the ground to make response. Use 32 microprocessor, it is the significant step that raises high speed of numerical control system to handle ability. Change in high speed of numerical control device in, raise main shaft rotate speed to have important place. The method that main shaft high speed changes is direct join electric machinery and main shaft into an organic whole, can increase main shaft rotate speed greatly thereby. Use technology of linear electric machinery to replace the technology of ball guide screw that at present middling of machine tool drive uses, rising while outline machines rate, raised acceleration. Divide outside using new-style function part ceaselessly, still need to have thorough research in the following respects: Treatment of 1) high speed is kinetic the methodological processing that builds the object below model and motion of control high speed to cannot have used pure static state, numerical control problem also no longer can end is geometrical problem or statics problem. As a dynamic object, it is not " blindly follow sb " the ground follows the control that brings to bear on, and strive shows it " individual character " ; On the other hand, the control that brings to bear on must sufficient take into account is controlled the trends of the object is characteristic, ability gets anticipated control result. Accordingly, the numerical control system that cannot have resembled a tradition in that way, can will control system and controlled consider and the object is made apart, and must be handled as a whole, study the kinetic question that its leave in high speed condition, and the time lag impact that exceeds high speed motion to control the light below the condition, telegraphic number and the issue that its remove. Below high speed circumstance, the whole that must study system of collect numerical control and control object are an organic whole is kinetic build a model, be based on whole of kinetic model nonlinear control strategy, intelligence changes control method to wait. Of parameter of 2) Electromechanical character differentiate, analysis and control optimize core of high speed pilot to depend on realizing tall acceleration, make for this need servo orgnaization is in optimal job status, acquire a system thereby acceleration of the biggest campaign. Accordingly, be based on systematic whole to build modular acceleration to control parameter of Electromechanical of curvilinear choice, servo differentiate optimize, the heat that the cooperative control of much axis gain is current research. Interpolation of operation of interpolation of 3) high speed, high spirit and control algorithm high speed, high spirit is will complex contrail by control the rule decomposes servo to control an instruction. When outline is machined, machine program by huge amount small line segment is formed, high speed treatment is divided need to assure small paragraph of program is continuous outside carrying out, still need to change to forecast each axis position in time according to orbit, realize tall acceleration service requirement. This is about to beg pretreatment of interpolation of pair of small paragraph of high speed of the program, high spirit, high speed, small of paragraph of program impose decelerate control, lead G code is forecasted (Look Ahead) , the direct interpolation of complex contrail and high speed data are transmitted wait for the research that has development. The principle of numerical control process designing that 4) faces high speed expensive precision work and the numerical control process designing with traditional method were solved in the knife in low speed treatment orbit creates a problem, but high speed treatment is right however numerical control process designing raised taller requirement from principle and method. For this. On the foundation that must studying high speed machines craft mechanism, research applies to the principle of numerical control process designing of high speed expensive precision work and method. In this respect, knowledge base of parameter of craft of mechanism of craft of high speed treatment, high speed treatment, be based on high speed treatment is nonlinear athletic error compensatory knife orbit program, machine program is flowing transfer, speed of the feed in high speed treatment is optimized, be based on STEP the standard, advanced NC that faces treatment feature code language is. 2.

High accuracy changes a technology to raise the treatment precision of numerical control machine tool, the sum of errors that can control a system through reducing number commonly uses machine tool error to compensate a technology to come true. Reducing CNC system to command error respect, adopt the resolution that improves numerical control system normally, raise the position to detect the method of precision. Fall in the circumstance of high speed, expensive precision work however, online trends is measured and compensate existence to wear high accuracy and the contradiction between a large number of Cheng geometry quantities, it is the tradition detects the method finishs hard. Accordingly, need to study new measurement and compensation mechanism, the online trends that undertakes geometry of high accuracy, many Cheng is measured namely detects principle research, and those who control an error is online detect with real time, the research such as forecast and compensation method, control of the make a present of before buy of v/arc be on the throne is used in servo and nonlinear the method such as control. Grow to solve the half step in high speed, expensive precision work with the contradiction between great distance, need to study principle of new high speed drive and orgnaization. Technical respect is compensated in machine tool error, divide outside using the technology such as compensation of tine unoccupied place compensation, guide screw pitch error and cutting tool compensation, the research that to equipment in recent years heat is out of shape error compensation and dimensional error compensate a technology integratedly already made worldwide research task. 3.

Intelligence changes a technology the development of theory and the technology such as the network of ambiguous maths, nerve, database, knowledge base, decision-making system that is a foundation with example and model, expert system reachs his the success in manufacturing industry is applied, rise for what intelligence of numerical control equipment changes a standard built credible technical base. Intelligence turns the heat that making research of numerical control equipment and progress, the main technique step that takes at present includes: 1) improves treatment efficiency from adaptive control technology is the target that production processing technique develops lasting pursuit. Present numerical control machine tool is controlled to machining the control of the process or open loop, namely they can the machine program that trustily implements people to had been made up for it beforehand, and the change to the operating mode in treatment process, the identifying with corresponding lack ability and sufficient autonomic control capacity. Accordingly, the treatment quality of the spare parts and treatment efficiency rely on the experience of technologist and knowledge strongly. In addition, treatment state is complex and changeful, technologist often chooses more conservative treatment parameter completely to ensure public security truly, make machine efficiency and quality rise be restricted. In the meantime, machine a state (the vibration in be like cutting tool state, treatment) the efficiency that machines immediate impact equipment, quality and safety, this kind of circumstance machines large part in milling (if machine lamina of large hydraulic turbine) when more such. Accordingly, those who machine a process from adaptive control technology, the efficiency that large to rising part machines, ensuring treatment facilities on the safe side to move is very important. Machine a process from adaptive control technology it is an index accuse equipment to be able to detect influential to oneself information, adjust concerned parameter of the system automatically continuously, achieve the goal that improves a system to run state. If pass the cutting tool in monitoring cutting process to wear away, the treatment quality of force of the damaged, configuration that cut bits, cutting and spare parts, to information of feedback of numerical control system, be together through optimizing monitoring of process control, process, process union, implementation suits oneself adjust, with improving treatment precision is mixed reduce workpiece surface surface roughness, assure to machine equipment safety. The data makes clear, when applying this technology to be machined in milling, its efficiency can raise 30 ％ to control. The common law that technology of 2) expert system machines the expert's experience and cutting and special rule put person computer in, it is in order to machine craft parameter database prop up, build the expert system that has artificial intelligence, offer the cutting parameter that the course optimizes, make machine a system to be in from beginning to end best and most working status of economy, achieve thereby increase process designing efficiency and the technical demand that reduce pair of operation staff, shorten greatly the purpose that produces preparative time. 3) breakdown diagnoses the newest tendercy that system of technical breakdown diagnostician is diagnostic unit development oneself, it offerred to include 2 times to monitor for numerical control equipment, breakdown is diagnosed, safety is ensured and the intelligence that waits for a respect inside diagnoses economic strategy reach safeguard decision-making information compositive system. 4) intelligence changes technology of communication servo drive to already began to consider to be able to identify load automatically at present, and the intelligence of self-correcting parameter changes servo, include intelligent main shaft to communicate actuating device and intelligence to convert feed servo plant, make drive system obtains optimal moving parameter. 4.

The network technology of equipment of network technology numerical control is to point to can support telemonitoring, diagnose and control, supportive network production resource is shared, supportive equipment participates in network environment to issue the technology with production compositive system. Its are main technical content has: The network of numerical control equipment that the compositive technology that the numerical control below 1) network environment equips studies to network environment falls interrelates technology (include to equip between interrelate of technology and equipment interior interrelate technical) , the digitlization below network environment makes equipment distributed handle technology and network of different compose equipment in coordination compositive technology. 2) long-range operation, monitoring and the diagnostic extraction that diagnose a technology remotely to study real time monitors data, identify and shirt-sleeve, the organization of diagnostic knowledge and inference are algorithmic, of the communication agreement with reliable real time and data share a standard to wait; The intelligence of moving condition of equipment of the numerical control below network environment detects, monitoring and diagnostic technology; The network overall situation that numerical control equips attempers technology of technology, long-range design process designing and long-range operation technology. 3) network manages technical research to make an environment fall in the network, network besides with outside at transmitting machine program, implementation the network is operated and be controlled and be being diagnosed remotely, more important is the productivity that improves a machine tool further. Study for this need the network manages a technology, namely network production runs a system, system of CAM of network CAD ／ , the network safety mechanism that the numerical control that faces network to create an environment equips and be on guard the technology. CNC Milling CNC Machining