The robot replaces a machine tool

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  • source:OURLOVE CNC Machining
Put in a kind of typical communication obstacle inside machinist factory. The robot runs their respective specific brand language, and machine tool of traditional CNC computerized numerical control is read take the G code that generates through CAM software. But if be opposite the controller process designing of the robot, make its are read from inside CAD/CAM program directly take G code, how should that do? This robot can obtain the function of machine tool of computerized numerical control of a CNC, include all face of 5 axes outline machines a function, and enter a process designing of several minutes to it can make its are on aleatoric 3 axes or 5 axes workpiece undertake machining. Current technology prepares those who begin the work to head for past need a few hours in the robot, even the process designing between a few climate. In addition, include this kind of robot inside the replacement scheme that machines unit to be able to offer a kind of low cost will replace machining center undertakes with hollowing planer the spare parts is machined 2 times, and can remove the working area restriction when those machine tools are machining large part. Programming Plus company (Www.

Robotmachining.

Com) the robot treatment unit that weighs it plants this " if how do " assume became reality. This robot machines unit key to depend on New Berlin, the software that Wisc company develops, the prepares to be used at 5 axes machine tool G code that it generates CAM is changed smoothly into code of practicable of 6 axes robot. The robot of PPI sells engineer Tim Brooks to say, there still are an any other companies on the world accomplished this. Programming Plus is engaged in CAD/CAM, DNC and workshop automation technically. Programming Plus uses Delcam (www.

Delcam.

A future life of Com) Power-Mill software becomes Kuka Robotics (www.

Kukarobotics.

The G code of Com) robot, the treatment that provides its robot is unit (RMC) . Because this unit resembles a machine tool working in that way, so operator can be started or shut the runner shaft of the robot, change Rpm, and decision speed and feed. Brooks says, so far, still cannot execute these functions, because they are not inside the control limits of the robot. The workshop often uses the traditional robot that matchs stock main shaft, so that be all round spare parts outline,long edge, cut is mixed go burr. But these workshops must " teach " robot, move them to the spare parts all round a certain number of on the dot, the part is more complex, the professor's time is longer. The spare parts that teachs a robot to move to differ to another from a spare parts needs more professors. The robot inside treatment unit need not teach the robot to be able to move from a spare parts next spare parts, no matter the complex degree of the spare parts how, they prepare in 30 minutes shift can be finished in time. If operator is dissatisfactory,the robot machines the robot cutting method inside unit, so he can change cutting way in CAM system, in he can teach this kind of change by hand and perhaps thrusting its way, save a program afresh and run it. In addition, because the robot machines the PowerMill software of unit use Delcam, so the workshop can carry out robot and spare parts treatment to emulate the collision that will examine a possibility and obstacle, the ongoing travel that running a program interferes an examination. Additional, the software that Brooks calls him the company will make the workshop can pass camera before long, from the remote supervisory and controlling equipment on Internet implement person. The software of Programming Plus still can offer for the workshop go to the lavatory otherly: Solve bizarre sex problem. Be close to when all axes of the robot for zero hour, produce bizarre sex problem. So that catch up with,they raise rate, they arrive a certain a little bit, herein they move too quickly, and be in go up somehow, their lock is decided and stop. What this kind of circumstance is similar to a lathe to go up is constant exterior footage. The problem is the workshop cannot expect bizarre sex to will be in where to happen. Fortunately, when the robot machines unit software to change G code to the robot, it evaluates a program to whether exist to cause the physics of bizarre sex possibly to configure. If discover any such physical configuration, criterion software modifies a program in order to eliminate them. Most workshop did not rise treatment of face of 5 axes outline and robot connection, advocate the data dot that if because need,spend many time,will be necessary place teachs a robot. Contrary, the workshop uses machine tool of CNC computerized numerical control. If be large part, count a workpiece and assemble what they are become to suit a machine tool by cent afresh after cutting rise. In other words, the workshop will demolish machine tool face plate and door of feed a machine, so that will need the workpiece part of cutting to secure,go up in the machine tool, and make part of spare parts the rest from side impending or extend. The workshop with use robot unit treatment can be in in intending the work, one pace machines whole spare parts, because this unit unlike machining center has essence of life in that way,decide justice working area. It is OK perhaps on the ground of the workshop that the spare parts can be laid aside them clip holds the workpiece clip on workbench to go up, should prepare the job to be in only of the robot can amount to limits inside, they can be machined. Below certain circumstance, of the robot extend length but outspread reach 25 feet. The ideal application with robot unit and current treatment is a kind of such application, it is involved will be in 4 axes or the large, complex part that 5 axes machine on machining center, they by weak data, for example: The data that uses in complex of fiber of plastic, fibre glass, carbonization and prototype design is made. But, brooks hopes our company robot machines unit to be in the end of the year is used at machining soft metal this year. When machining a metal, two elements restricted most robot: Precision and torque. Average and character, the robot nowadays arrived accurately 0.

004 inches. Although most metal spare parts needs accurate treatment, but the precision that the robot can accept in still having a few application, for example: Prepare rough machining spare parts, the precision work that attends at machine tool of CNC computerized numerical control with benefit. Use more the runner shaft of high-power can obtain a robot to machine what soft metal place needs to enhance torque, but robot must enough and strong and solid so that the palm accuses those runner shaft, brooks says. Programming Plus uses Kuka robot in unit of its robot treatment, the strategic alliance of Kuka company is in charge of Joe Campbell to say to a few technologies support a robot to machine. For example, the company such as such as Kuka is making bigger than be being had before mechanical tigidity, solidder robot now. Annulus the tine gap that the closer public errand in the department reduced a robot, and emulation tool of finite ultimate analysis and computer has helped the bending that eliminates robot cast. Robot more intelligence, show tight athletic control, manufacturer people the inaccuracy that can improve them better than in the past. "We have a robot platform that is worth to be engaged in machining now, " Campbell says, "It sounds likely it doesn't matter is alarming, but compare with the bulk photograph of the robot, considering the bulk of the machine tool, the robot nowadays comparatives to be mixed stably strong. " Kuka offers a variety of robots to be used at treatment, include its KR60-HA, KR210 and KR240. KR60s is the robot with the most accurate Kuka at present, the gear series that introduced form a complete set because of them and other assemble engineering technology, these technical calibration they with benefit at high accuracy. When Campbell explanation says to machining horniness metal, want between the material that the robot excises and precision level mutual and eclectic. For example, one workshop keeps clear of from wheel of Die Casting motor mould earmark and casting makings, it may use machine tool of computerized numerical control of a CNC, but this job special agree with robot, because of it claimed accuracy is mixed a few material cutting. On the other hand, he says on horniness material cut keyway is not agree with the ideal application of the robot. "The robot cannot finish what what do on the machine tool to make much work. But, a lot of workshops use machine tool of CNC computerized numerical control to implement fabricating technology, and the robot can be engaged in these treatment completely. " Campbell says. Robot of KR210 and KR240 Kuka handles big load. Although milling machine main shaft not so heavy, but so that the position is maintained when moving along cutting method,the robot has mighty electric machinery power. "Machine tool manufacturer people the horse power that discusses machine tool main shaft. We are engaged in robot business caring effective and laden ability. " Campbell says. The Kuka robot that Programming Plus place uses bears the weight of easy to doly the 30 main shaft that reach 40 horse power. The robot with the strongest Kuka, length range is extended in 25 feet its inside, can raise the effective load that hefts 1100 pounds. The company is devoting oneself to to develop larger robot, campbell says they will cause metallic cutting to use medium more possibility. The other Kuka robot in experimenting at present has low floating rate, but the material cutting capacity that tall torque and tigidity can increase a robot further. In treatment application, so that,the robot often uses force and torque sensor at them " perception " abhorrent sex of the surface and not integrality, the data that excises minimum will correct them. For example, be together to combine two surfaces, the torque that robot self-correcting place applies and force, avoid in order to help it to injure the surface to perhaps excise overmuch material from the spare parts. Force and torque sensor are compositive inside the toggle in the robot, robot controller is surveillant their job. Those sensor and controller union make the user can stipulate the robot uses the way of thrust augmentation together, campbell says. A typical robot machines unit to comprise by the following equipment: A robot, it has a 5 main shaft to 10 horsepower, have a lid change tool carrier, it contains 10 cutting tool, one decides the device of length of laden cutting tool, still have system of a laser, workpiece of its fixed position with simplifying the spare parts works to the preparation between the spare parts. Main shaft dimension depends on application. Robot of system of a Programming Plus can change a knife automatically. Campbell says to change in robot one party cutting tool is very common, the standard milling head of the company trades knife unit direct, simple. This kind of ability makes unit robot can oneself lade. They tear open next milling cutter, lade the spare parts to unit inside, reinstall cutting tool and cutting spare parts. "We hear the motive of the client that is interested in RMC is crop. Machine tool of most CNC computerized numerical control, unless be automatic, otherwise their utilization rate is inferior, the milling head that this means them is planning time and activity of other blame cutting, be not hour rotating. Contrary, the easy to do job in them holds our robot treatment unit inside the area many spare partses, allow a robot to move from a spare parts another spare parts, so that use less capital total to obtain quite big crop, " Campbell says. Robots Run On Brand-specific Languages All Their Own, while Conventional CNC Machine Tools Read G-code Generated Through CAM Software.

But What If A Robots Control Was Programmed To Read G-code Directly From A CAD/CAM Program? Relevant link: Raise cutting tool function to be machined in the light of specific applied situation " appropriate " edge is not easy thing. Advanced before long, people still thinks to make edge chamfer body all the time is not science, is a kind of art more, because cutting cutting tool is in,wearability and hardness quality respect ask very tall, the groovy look that because this is machined,gives satisfaction is very difficult. But, machine proper cutting blade to have very big effect to cutting tool function and life. Correct cutting blade machines a process to be able to reduce common invalidation cause, such as: Break off crack, the invalidation that hot induction causes and cut bits tumour to wait and prolong cutting tool life, and can the very big dependability that raises cutting tool. The cutting tool of proper honing still can raise those who machine working procedure to repeat precision, conduce to implementation unmanned guard treatment. Edge honing is the abrasion process that has on microcosmic dimensions, control of process of whole set of need have the aid of will carry close together noncombatant duty. But, metallic purify rate and edge consistency are controlled very hard on material of cutting cutting tool. Normally, honing process is guide through guessing well-trainedly bring, and the skill of the change of machine tool of be enslaved to be enslaved to and operator. Common honing process machines the corner of cutting tool easily too much, and because of supplied materials each are not identical, be in very hard a knife undertakes controlling on foundation of a knife. Not only edge honing is controlled very hard, because cutting condition also follows individual cutting,at the same time blade happening changes, because this machines cutting,the optimal dimension of blade can follow treatment workpiece change and along cutting blade happening changes. Close hold bring project of machinery of university of science and technology - the engineering is mechanical the associate professor of the department, it is to be located in at the same time close hold the machines analytic technology company president William J of city of the Houghton that bring a city.

Dr. Enders thinks: "The user asks radius of the crucial point of point of cutting tool turning is lesser, because of the corner of edge of the ply that cut bits that did not cut radius decreases. " in the time that goes more than 10 years, he is studying edge machines the problem of the respect all the time. In cutting tool before on blade, not the ply of bits of be sure to is the biggest, edge needs the greatest protection. But, in cutting tool hind on blade, not ply of bits of be sure to drops almost for 0, accordingly honing quantity should be reduced accordingly. To constant honing is measured -- size is made for the blade before protection, the honing quantity on blade is compared after not ply of bits of be sure to is big, the rate of material of cutting blade purify is very accordingly low, raised force of attrition, cutting, temperature to reach wear away. Up-to-date, the technical development that if other side concerns cutting cutting tool,the method that machines cutting blade also does not have is rapid, form of matrix of such as material, chamfer and coating. Use technology of oneself project small geometry, be located in guest evening standard the company of Conicity science and technology of city rolled out Ni Yazhou Cresco to be in same differ cutting tool apparently the edge honing technique that processes a different measurement. This craft uses compact carborundum fiber to brush union to computer number is controlled and process an edge form accurately always, tolerancepublic errand is amounted to 0.

0003 inches, the precision of method of more traditional than much honing raised an amount level. The executive vice-president Bill Shaffer of Conicity says: "Through controlling edge parameter, craft of project small geometry can stop material purify process when achieving correct honing to measure. Accordingly, edge machines dimension to distributing on cutting blade, maintain some specific not ply of bits of be sure to machines dimension to compare to edge. " he continues to say: "For example, be in but on dislocation razor blade or cutting tool of blade holder type, ministry radius part is carried in cutting tool, edge treatment is shirt-sleeve in edge treatment process not ply of bits of be sure to changes. As not ply of bits of be sure to is reduced, edge machines dimension to reduce. " the efficiency of cutting tool cutting that has metabolic type where a thing can be put to best use is taller, because of its cutting blade dimension produces change, the material that cuts can be clipped in order to prevent between cutting tool and workpiece. Can reduce cutting tool wear and tear so, thereby cutting tool pressure and cutting force are reduced, cutting tool and workpiece temperature rise are contractible also. Prolonged cutting tool life thereby, raise workpiece surface flatness, reduce the formation of burr at the same time. Metabolic type edge can be in almost include the broach, multiform cutting that establishs milling cutter and dumpling knife to wait inside use on cutting tool. Craft of project small geometry still can be in a knife uses same the crucial point to machine a process on foundation of a knife, this kind of craft machines a method to have better consistency than traditional edge. In addition, this craft is OK still form of optimal and microcosmic chamfer is implemented in every cutting application. Below certain circumstance, this kind of practice is meant even honing amount is formed on whole cutting blade; And express to use alterable honing quantity to realize proper where a thing can be put to best use to machine a process below additionally a few circumstances. Proper treatment edge a the most apparent and immediate advantage is to improve cutting tool life. To craft of project small geometry, edge machines the cost that business costs commonly to be a new 10%~20% that replaces cutting tool, and this craft can prolong the life of cutting tool 300%~800% however. It is very important to prolong cutting tool life, have a variety of reason among them, include to be able to be saved be ground again and change the cost of new knife. For example, to make full use of its 5 coordinate machining center, one is located in the company of accurate manufactory Oberg Industries of city of Freeport of Ni Yazhou of guest evening standard, change high-powered hard alloy to cutting tool from high-speed steel cutting tool, the machines with craft of project small geometry blade that used company of Seim Tool of city of Latrobe of Ni Yazhou of guest evening standard to offer among them. The toolhouse manager Bob Binner of Oberg says: "Through using a project small geometry craft machines edge, ground the time between the knife to be lengthened commonly 300% the left and right sides, this is the tremendous redound that invests craft of project small geometry. Replace time is lengthened between cutting tool still mean can reduce the number that suspends production, reduce labor cost. " Binner thinks more important is indirect cost is saved. "This kind of edge machined a process to eliminate the appearance that break a knife almost, the phenomenon that break a knife can produce a series of undesirable consequence in automation process. The knife happens to be able to cause the domino effect of damaged of downstream cutting tool on the machine tool of unmanned guard. Such breakdown phenomenon can produce huge loss because of attaint cutting tool and costly spare parts, and subsequently problem is possible very difficult rehabilitate. Contain the hard alloy cutting tool of the edge that with the project small geometry craft machines through using, the circumstance come off work that can not changing broach and reamer occasionally makes a few weeks. " the economic benefits that prolongs cutting tool life is highlighted especially in aviation and medical treatment domain, include to want to get cut and process tough data, alloy of such as chromic ferronickel and titanium. CNC Milling