The welded CNC machine tool frame

Abstract

Machine tools are built based on cast-iron bodies. Cast iron well dumps down vibrations and is dimensionally stable. Therefore, many conventional machine tools are modernized and modified into CNC machine tools based on the seasoned old bodies of those machine tools. Nevertheless, CNC machine tools are also manufactured based on polymer concrete, which vibration damping ability is even better. On the other hand, attempts made in the past by leading machine tool manufacturers to use welded frames in CNC machine tools failed. The revival of interest in welded frames was spurred by economic considerations, as steel systems are much thinner compared to cast-iron ones. They are able to carry the same loads. The construction of CNC machine tools with a welded steel frame undertaken at the Institute of Mechanical Technologies (ITM) of the Czestochowa University of Technology is an attempt to solve this constructional problem. The machine tool frame was designed with use of CAD solid works system. The ultimate success of using the welded frame is determined not only by the frame itself, but also generally the design of the machine tool and its operation parameters. The welded frame was used for a high-accuracy three-axis milling machine. In this respect, it is equal of professional machine tools manufactured by reputed companies. It can be either a production machine tool or a test stand.

The design of the CNC milling machine

“…The vibration technology provides dimensional stability similar to the stability obtained during natural ageing [14]. This has allowed a rigid frame structure to be obtained [1].…”

“…Aside from professional CNC machine tools used in many branches of industry [1,2], the market of amateur solutions of such machine tools is intensively developing. For amateur CNC machine tools, their main distinguishing feature is a low manufacturing cost.…”

Digital possibilities of the reconstruction of machine parts

“…Dedicated measurement and post processing software integrated with scan3D UNIVERSE is a complex solution which enables end user to prepare 3D documentation process and perform virtual research such as cuts or modeling of missed parts of the scanned object. Multiple export formats as well as: standard raw data format allows the data to be used in all popular CAD or 3D graphical software such as: Maya, ZBrush or 3Dmax, SolidWorks [6]. User can easily share the results with other researchers thanks to a free SMARTTECH3Dmeasure Viewer software [23].…”

Experimental Study on Compressive Strength and Flexural Rigidity of Epoxy Granite Composite Material

“…The major desired factor which affected on structure and material of machine tools' properties are high structural stiffness, excellent damping, and low thermal sensitivity [2]. Therefore, the produced material is expected to be ideal to develop alternative materials for machine tools structures with excellent flexible operation performance [3], [4]High productivity, and low cost [5]-. Table 1.…”