A four-track bed

Abstract

The invention relates to the field of numerical control machine tools, in particular to a four-rail lathe bed. The four-rail lathe bed comprises a base, an inclined lathe bed, tailstock guide rails and a saddle guide rail, wherein the inclined lathe bed is located on the base, the saddle guide rail is located on the inclined lathe bed, the tailstock guide rails are located on the base, and the topsurfaces of the tailstock guide rails and the top surface of the saddle guide rail are parallel to the horizontal plane; the tops of the plurality of tailstock guide rails are located on the same horizontal plane; and a cleaning assembly used for cleaning the tailstock guide rails is arranged on the base. According to the scheme, the machining precision of the whole machine tool is improved.

Description

technical field [0001] The invention relates to the field of numerically controlled machine tools, in particular to a four-rail bed. Background technique [0002] The basic component of the CNC lathe is the bed, and one of the important bed layout designs is the inclined bed. [0003] The CNC machine tool adopts the inclined bed layout, which can not only reduce the floor area of ​​the machine tool under the same conditions; but also improve the rigidity of the bed through the overall closed section design, especially when processing workpieces, due to the inclined bed Inclined setting, different angles of tools can be arranged on the inclined bed, so that the workpiece can be processed from multiple angles and in all directions, and the operation is more convenient. Therefore, CNC machine tools with inclined bed layout have been widely used in the lathe machining industry in recent years for the multi-variety processing of sophisticated and complex rotary parts. [0004] ...

AI Technical Summary

Problems solved by technology

combine figure 2 As shown, whether it is the saddle guide rail 3 or the tailstock guide rail 5, the top surface of the guide rail has a certain inclination, that is to say, there is an angle between the top surface of the guide rail and the top surface of the base 1. Since the top surface of the guide rail is inclined Therefore, the slider at the bottom of the saddle assembly 8 slidably connected to the saddle guide rail 3 and the slider of the tailstock assembly 4 slidably connected to the tailstock guide rail 5 need to be designed to cooperate with the top surface of the guide rail. In this way, the production and processing of the slider is relatively harsh, and the production cost of the slider is relatively high, and it is troublesome to install the slider on the guide rail with an inclined top surface.

Moreover, the gravity on the saddle guide rail 3 and the tailstock guide rail 5 is also relatively large. Since the top surface of the guide rail is inclined, the force on the top of the guide rail is uneven, and the top surface of the guide rail is easily deformed, thereby making the service life of the guide rail longer. Shorter, affecting the accuracy of processing

[0005] In the same way, the pair of tailstock guide rails 5 on the bed of the machine tool are usually provided with high and low steps at present, that is, the height of the guide rail on the left side of the tailstock guide rail 5 is less than the height of the guide rail on the right side of the tailstock guide rail 5, and there is a gap between the two. There is an included angle between the formed plane and the top surface of the base 1, so that the gravity of the tailstock assembly 4 borne by the tailstock guide rail 5 is unstable, and the tailstock guide rail 5 is easily deformed, so that the service life of the tailstock guide rail 5 is shortened. Short, it will also affect the accuracy of processing

[0006] In addition, the metal iron filings produced by current processing are easy to accumulate at the root of the tailstock guide rail 5, and it is difficult to clean it. In addition, the accumulated iron filings are also easy to enter between the slide block of the tailstock assembly 4 and the tailstock guide rail 5. Occasionally affect the normal sliding of the tailstock assembly 4, affecting the machining accuracy

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