Working machinery

The inclined machine bed with overlapping guideways and auxiliary carriages in lathes and turning mill machines addresses the challenge of positioning the tailstock or counterspindle close to the main spindle, resulting in a compact and stable machine tool design that enhances machining efficiency and stability.

JP2026121276APending Publication Date: 2026-07-23DMG MORI BIELEFELD GMBH
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DMG MORI BIELEFELD GMBH
Filing Date
2025-12-15
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing machine tools, such as lathes and turning mill machines, face challenges in positioning the tailstock or counterspindle close to the main spindle without increasing machine dimensions or compromising stability, often leading to offset issues that affect spindle housing support carriage stability or requiring larger machine sizes.

Method used

The machine tool design incorporates an inclined machine bed with parallel guideways on its support sides, allowing for compact and stable positioning of the tailstock or counterspindle by using auxiliary carriages and guideways that overlap partially, ensuring minimal overhang and enhanced stability without enlarging the machine.

Benefits of technology

This configuration achieves a compact and highly rigid machine tool design with improved stability, enabling efficient machining of workpieces from multiple angles and reducing the risk of chip entry into guideways.

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Abstract

To provide a machine tool that allows the tailstock point or counterspindle to be positioned very close to the main spindle without increasing the dimensions of the machine and / or without compromising the stability of the tailstock or counterspindle carriage. [Solution] The invention relates to a machine tool (100) having a machine bed (10), a first spindle carrier (13), and a main carrier (14), wherein the main carrier comprises a main carriage (15) and at least one first auxiliary carriage (16a, 16b), and the main carriage and the first auxiliary carriage are each guided by at least two of a plurality of guideways (30a, 30b, 30c) on a first support side (11), are movable in the longitudinal direction of the machine bed, and have a common guideway (30a, 30b, 30c) and at least one other guideway (30a, 30b, 30c).
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