The design of forming machine of electric spark of numerical control of 4 axes nicety is developed

Summary: Introduced forming machine of a kind of new-style electric spark of 4 axes nicety, structure of main body of this machine tool uses pillar type to arrange plan, main shaft and feed system use electric main shaft and machine tool of; of drive of linear electric machinery to control a system to use the system of open mode numerical control that is based on PC respectively, workbench drive adopts plan of half closed-loop control, main shaft feed used; of plan of full closed-loop control to develop the control software that is based on Windows operating system. In recent years, development of technology of form cutting of foreign electric spark is very rapid, the development of the technology such as treatment of the treatment of electric spark milling, treatment that mix pink, ambiguous control, imperceptible electric spark and linear electric machinery and expert fasten the application of all, make the function of electric spark forming machine gets rising very well. Our country is compared in this two respects and foreign photograph far apart, forming machine of existing electric spark of odd axis numerical control cannot realize electric spark milling to machine, the research that face of lens of internal heat of the electricity that mix pink machines still is in start level, treatment of ambiguous control, imperceptible electric spark still be in research phase button. For this, we face small and medium sized business, link the demand that mould technology expands. Research developed a technology advanced, function the forming machine of electric spark of rigid numerical control of moderate of advantageous, price. The total construction of forming machine of electric spark of nicety of total construction design is like forming machine of scintilla of 1 essence cipher telegram the graph is shown 1 times, the machine tool is mixed by base, pillar, workbench, main shaft working fluid the composition such as circulatory system. The structural composition form with electric spark common forming machine has pillar type and dragon door type. Workbench of motion of pillar form figuration realizes X axis and Y axis translation, main shaft realizes motion of Z axis feed and whirligig. Dragon door type, installation of main shaft orgnaization is on dragon door, dragon door realizes Y axis translation, main shaft realizes X axis translation and motion of Z axis feed and whirligig on dragon door. We use pillar type to decorate, working fluid circulatory system is decorated independently relative to the machine tool. The athletic system of forming machine of scintilla of 2 essence cipher telegram designs system of campaign of machine tool workbench to use scroll guide normally servo of oriented, dc (or the pace enters electric machinery) drive, drive of ball guide screw, current, machine tool of domestic and international figuration of numerical control electric spark adopts plan of this kind of drive mostly, more mature on the technology. What forming machine of existing electric spark of 3 axes numerical control uses mostly is a graph 2. Shows plan, installation of main shaft component is in smooth board on, use direct current or communicate servo electric machinery direct drive, motion of main shaft feed uses scroll slideway to direct, flow continuously or communicate drive of servo electric machinery, drive of ball guide screw, drive smooth board feed. This kind of structure the wallop that to bear leap of main shaft high speed produces, use thicker ball guide screw and larger bearing, make the weight of main shaft is increased, to improve the high speed performance of main shaft, choose the electric machinery of high-power and high rotate speed. In recent years, technology of main shaft of direct drive, report develops linear electric machinery very fast, main shaft of the successfully will linear electric machinery such as Germany, Japan, report applies in machine tool structure, this design adopts the plan that graph 2b place shows, motion of main shaft feed uses THK nicety to roll slideway directs point-blank, xi Menzi is linear electric machinery is direct drive, the whirl of main shaft by electric main shaft direct drive. Take out ball guide screw and its belt support, the structure of such main shaft box is more compact. As a result of leave out intermediate component, reduced the weight of main shaft box, transmission precision is taller, high speed motility can be better. Fire of 3 essence cipher telegram, total construction is like the system of control of forming machine of accurate electric spark that the article designs construction of system of control of beautiful forming machine the graph is shown 3 times. Plan uses the open mode numerical control that is based on industrial PC, the system is controlled by servo drive one, condition of clearance of pulse report source control, discharge detects with fluid of control, job circulatory system is controlled wait for a part to comprise, to shorten research and development is periodic, electric machinery of the GT-400-SV that uses solid high-tech 4 axes controls card to undertake 4 axes electric machinery is controlled, the ACL-8112 that uses approach China science and technology muti_function the data that DAQ card has pulse report source control and treatment state is collected. Servo precision control is the key in servo control system, in the actual application that controls a system, have open loop, half closed circuit and complete closed circuit form of 3 kinds of control. The forming machine of electric spark of diameter of high accuracy number that abroad imports adopts the closed-loop control plan that graph 4a place shows commonly, the characteristic is precision tall, but systematic structure is complex, debug maintenance difficulty is great, the price is more expensive also. In this design, workbench uses transmission of ball guide screw, have taller move precision, consider the factor of the respect such as economic cost integratedly, the servo control of workbench adopts the plan of half closed-loop control that graph 4b place shows, and the servo control precision of main shaft has bigger effect to machining a process, because servo of feed of this main shaft adopts plan of full closed-loop control, if the graph is shown 5 times, because this design uses linear electric machinery direct drive, reduced intermediate segment, reduced debugged difficulty. The control software development of forming machine of scintilla of 4 essence cipher telegram is aimed at the demand that controls a system, the article uses fictitious instrument to developed software LabWindows/CVI to develop control software below Windows operating system, software main body includes user management, craft management, system to debug, the functional module such as the help. The increase and decrease that user management module is in charge of systematic user and safeguard, the system is landed debug; with what cancel the configuration that waits for craft of administrative job; to manage module to include to machine craft setting and treatment process to control; system to debug module to be able to undertake machine tool parameter and numerical control and power source module help. Software advocate the interface is shown 6 times like the graph. 5 summary create development demand of the technology in the light of the mould, the design developed forming machine of scintilla of cipher telegram of 4 axes essence, this equipment has a structure reliable, system can extend concise, function the gender is strong wait for an advantage. CNC Milling