Automatic oriented car (AGV)

Automatic oriented car (Automatic Guide Vehicle) be a kind nobody drive, carry equipment with the stock of drive of harbour storage battery, its travel course and berth position are programmable. Since 70 time, electronic technology and computer technology promoted the development of AGV technology, if had magnetic induction, the function such as process designing of infrared ray, laser, language, speech. AGV technology still is in development, at present AGV of some speech pilot can identify 4000 vocabularies. 1, the structure of AGV makes the AGV great majority with useful system in automation is AGV of magnetic induction type, graph 8-13 is a kind of AGV that can carry two work at the same time, it is mixed by cable of travelling bogie, underground 3 parts comprise controller, , the car provides power by accumulator, along bury inside floor chamfer with hand in change the cable of voltaic excitation walks, floor chamfer is buried in underground 4 centimeters are controlled in, ground channel is sealed with epoxy resin fill, form slick the earth's surface, so that sweep,mix safeguard. The layout photograph of the course of going from place to place of the course of oriented cable laid and workshop workpiece and storehouse suits, the course that AGV walks can be divided commonly for linear, branch, annulus road or meshy. Car drive electromotor by installation on board power supply of industrial level accumulator, normally power supply cycle is 20h left and right sides, because this must arrive regularly,safeguard an area to charge or change. Of accumulator changing undertake by hand commonly, charging can be handmade is automatic perhaps, some cars can receive electrify outlet automatically to undertake charging according to the program. To realize workpiece have sex automatically, the car exchanges unit of tray, so that with machine tool or assemble and unassemble automatic connection has between the station. Exchanging unit can be type of round screw die, use the attrition force between round screw die and tray to move tray into move piece, this kind of unit is common with form a complete set of roller type conveyer belt. Exchanging unit also can be slip yoke type, it uses the slip yoke of reciprocate to roll out or pull tray, the bearing roller of both sides is to reduce the attrition force when shift. Unit of trade of lifting platform formula is to use lifting platform to lift tray, the fork asking thing on stock bracket extends tray bottom, lifting platform drops, the fork that ask thing is answered shrink, move tray piece. The working process with immigrant tray is contrary. The car still contains litre fall pair of neat fit, the height when so that eliminate work,having sex is poor. Safe guard is set on AGV car, car around has yellow alarm inspect signal lamp, when the car walks continuously or preparation walks, maize signal lamp twinkles. Every drive wheel contains safety brake, when cutting off the power, brake is received automatically on. The car has emergency stop button and safe bumper each times, there is sensor on its, when the car when slight contact fraise, bumper press press, the car stops. 2, of AGV direct next graphs are magnetic induction AGV directs the principle pursues automatically automatically, car bottom contains arched antenna 3, cross locate with inductive lead 4 for the center and inside as perpendicular as inductive line plane. Inductive line is connected change in order to hand in electric current, generation is handed in change magnetic field. When aerial when any a side of line of 3 deviate induction, voltage of the induction in the attempt of two symmetrical lines of aerial has poor value, error signal passes enlarge, drive is left, right electromotor 2, or so electromotor has rotate speed difference, classics drive wheel 1 make the car changes direction, make inductive line is located in aerial center afresh, till error signal is 0. 1 - drive wheel 2 - drive electric machinery 3 - aerial 4 - AGV of inductive line magnetic induction directs the principle pursues automatically 3, method searchs method is to choose crossroad automatically, AGV walks in the workshop the course is more complex, fork is nodded and a lot of is hand in collect a place. There is central control computer to be in charge of car attempering on the ground control, microprocessor control plate is contained on AGV car, memory is in a takes course to in an attempt to to express form of AGV in computer memory, after giving start and eye punctuation seat, control program chooses automatically to give the optimal line that AGV walks. The car is in directional choice to use frequency to choose a magic art more in crossroad, be in decision-making point point, there are a variety of different frequency signals at the same time in floor chamfer, approach decision-making point when AGV (crossroad mouth) when, be in the position through coding device decides the car is current, AGV is made before adjacent and decision-making dot decision-making, decide the frequency signal that should dog, realize automatic method to search thereby. The travel of automatic oriented car walks the line is programmable, FMS controls a system to be able to change work plan according to need, the course of reorder car, have flexible feature. AGV little lathe work makes on the safe side, berth locates precision can achieve ± 3mm, can have sex with the relevant equipment such as machine tool, conveyer belt deliver goods, injury is not had to workpiece in carriage process, noise is low. CNC Milling