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邵陽學(xué)院畢業(yè)設(shè)計(jì)(論文)
Modular Machine Tool and Machine portfolio
automatic line installation and adjustment
I. Introduction portfolio Machine
Combination machine is based on the general components of the mixture by specific workpiece shape and design of the processing components and special fixture, The semi-automatic or automatic dedicated machine.
Combination commonly used multi-axis machine tools, more knives, multi-process, multi-faceted public places or while processing approach production efficiency higher than generic machine several times or more. As generic components have been standardized and serialized and may need to be flexible configuration, can shorten design and manufacturing cycle. Therefore, the combination of both low-cost machine and the advantages of high efficiency, the large, mass production to be widely applied. which may be used to form automated production lines.
Combination machine for processing general or special boxlike shape parts. Processing, generally rotating the workpiece, the tool rotation and tool and workpiece relative to the Progressive Movement, to achieve the drilling and reaming, Drill, Reaming, boring, milling plane, and cutting internal and external threaded cylindrical processing and ends, etc.. Some combination of machine tools used workpiece clamping Turning first to make it rotate tool for by the Feed Campaign can achieve some rotating parts (such as wheels, automobile rear axle, etc.) and the cylindrical end processing.
20 since the 1970s, with the turning tool, the Federated tooth cutter, Boring size automatic detection and automatic cutter compensation technology, the combination of precision machine has been upgraded. Milling plane flatness up to 0.05 mm per 1000 mm, Surface roughness can be as low as 2.5~0.63 micron; Boring accuracy IT7~6 level, Holespacing 0.03~0.02 micron accuracy.
Special machines, with the rise of the auto industry and develop. Special machines in some parts due to repeated use, and gradually developed into generic parts, resulting in a combination machine.
The combination of the first 1911 machines is manufactured in the United States, for processing, vehicle parts. Initially, the machine tool factories have their own standards of common parts. In order to improve the different factories generic parts interchangeability, user-friendly and maintenance 1953 Ford Motor Company and General Motors Corporation and the American Machine Tool factory consultations determine the general components of combination machines standardized principle that the strict requirements of the various components of the link between size, But parts of the structure are not provided.
Common components and functional components can be divided into power, the bearing parts, transmission parts, components and auxiliary control of the five components. Dynamic components are combined to provide the main machine Progressive Movement and the Movement for parts. The main power box, cutting head and power slider.
Supporting parts are used for the installation of power slider, with Feed the cutting head or fixture components, and a side of the dock, Middle Cradle, frame, adjustable frame, columns and columns such as base.
Transportation for the transfer of parts of the workpiece spindle box or to the processing station components, who are mainly degrees rotary tables Ring rotary indexing table, indexing drum and reciprocating movement of workstations, etc.
Control components are used to control the machine automatically work cycle components, hydraulic station, electrical cabinets and control board, and so on. Auxiliary parts are lubricating device, cooling devices and Chip devices.
To portfolio in small and medium-sized machine can be applied to mass production, often require the application of group technology, Process and structural similarity of parts in a concentrated portfolio processing machine to improve machine utilization. These machines have two common, for box-type spindle machine tools and portfolio composition machine turret.
Modular Machine future development will be the introduction of more speed motor and ball screw drive, and so on, to simplify the structure, Beat shortening production; digital control systems and spindle box fixture automatic replacement system to enhance the process adjustable; and into the FMS system.
Ⅱ. portfolio machine automatic line installation and adjustment
(1) Combination Machine Automatic Line Installation general order, casting concrete foundation, as automatic line and bolts in the end of planar hole location map inspection, in the case of trench BTA. Should install automatic line BTA equipment, pass the inspection after watering.
Intermediate machine installed base (together with the fixture), and is adjusted for the intermediate base installations, Installation adjustment conveyor transmission device, the initial inspection machine level and away from the center, and adjust the base of the middle horizontal position, so that the machine side of the base and columns, adjust the machine checks the accuracy, after passing the base of the lateral and intermediate base of fastener. And the spacing adjustment screw machine, bed spacing.
Installation of hydraulic station and the installation of hydraulic pipe .
Install bolts and creating hard to be solid, to the side of the machine base. The base of the middle belt and gear tightening the bolts, machine tools and precision.
Installation support among restrictor plate and side panels, the installation of the conveyor system parts.
Electrical installation counters and electrical equipment, auto electrical wiring line.
For those who can transport the individual work spaces, public spaces should the whole installation, the installation to reduce the workload.
(2) Automatic Line, on the basis of the "bottom line automatically plane and screw hole location map" casting base In addition to the line of automatic machine tools, workpieces conveyors and other equipment installation location and bolts in place, must also consider the line to the automatic water supply, ventilation and electrical alignment of the pipeline trench locations, the installation of transmission equipment chip trench. its ends than 3~4m BTA equipment lengthened. For the demolition and maintenance.
Automatic Line thickness of the base should be based on the machine to determine characteristics. Horizontal drilling and general Tapping Machine, from 400mm thick foundation, vertical drilling for 500mm; vertical milling machine and some heavy boring machine should be larger than 800mm, machine weight of more than 12t, Reinforced base should be increased.
Automatic Line of finishing machine, should be installed in a separate basis, so that it automatically separates the overall line to shock absorbers.
Automatic Line ground plane on the ground should be lower than 80mm workshop. To install machine Mountings, machine tools and other equipment of the plane and the end of workshop horizon line.
(3) Automatic Line Machine portfolio adjustments automatically installed in place, that should be automatic line debugging of preparations, essential preparation for a sufficient number of test materials. Two knives and tools, together with a diagram processing readjusting.
When the automatic line installation is complete, and pass the inspection, carried out the necessary safety interlocking action of the pilot, will be qualified to undertake the following tasks, single machine tools and equipment, air operations, the section of the air operation, and a full range of air operations, adjusted test cycle by cutting the workpiece by automatic test cycle cut workpiece.
Automatic Line Commissioning general the following order, electricity lines will automatically check the machine and equipment motor rotation direction. Dynamic adjustment of the parts for air operations pilot. Folder positioning adjustment of hydraulic pressure transmission device, adjust belt transmission device, adjust the belt gear hydraulic system, positioning and clamping of the workpiece carrier air operation test ,
Test entire air operation, the installation has stressed good size knives and tools, according to the adjusted test cycle cut workpiece, Inspection of the workpiece quality and processing accuracy and eliminate air operations and test all parts exposed in the course of the defect. Automatic cycle by a group of the workpiece cutting tests to check the workpiece machining precision, Cutting adjustment and the elimination test exposed, the final automatic line job stability and productivity of the cutting plant test qualified automatically routes can be opened.