Linear guide module and linear motor module foe machine tool feed axis

By adopting a linear motor and sliding guide slider structure in the machine tool feed shaft module, combined with arc type and two-point type contact, the rigidity and accuracy of the module are solved, and efficient and low-cost production and use effects are achieved.

WO2025001964A1PCT designated stage expired Publication Date: 2025-01-02SHENZHEN DYNAMIKWELL TECH
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Patent Information

Application Number
PCT/CN2024/100428
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-30
Filing Date
2024-06-20
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

The linear modules of the feed shafts of existing machine tools are complex in structure and are easy to wear. The installation accuracy depends on screw connection, resulting in insufficient rigidity and accumulated accuracy errors, cumbersome assembly process and high cost.

Method used

The linear motor is used as the power mechanism to achieve high rigidity and high precision through sliding guide sliders and steel ball rolling elements. The guide base is integrated with the sliding table plate to reduce screw connections, and the load-bearing capacity is improved by using arc-type and two-point contact structures. Shock resistance, simplify structure and reduce production costs.

Benefits of technology

It realizes the high structural rigidity, accuracy stability and versatility of the module, reduces production cycle and labor costs, avoids the reduction in accuracy and accumulation of errors caused by loose screws, and is suitable for high-speed and low-speed operating conditions.

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Abstract

A linear guide module, comprising a guide base (1), a sliding table plate (2), and sliding mechanisms (3), wherein the sliding mechanisms (3) are disposed on two sides of the sliding table plate (2), and the sliding table plate (2) is slidably connected to the guide base (1) by means of the sliding mechanisms (3). Each sliding mechanism (3) comprises a sliding block (31), return devices (32), and steel ball rolling elements (33), wherein the sliding block (31) is fixedly connected to one side of the sliding table plate (2); each of two sides of the guide base (1) is provided with a protruding block (11), and the inner surface of the sliding block (31) is provided with a groove (34), the protruding block (11) being slidably connected inside the groove (34); two return devices (32) are provided and respectively located on upper and lower sides of the protruding block (11), the return devices (32) being fixed to the inner surface of the sliding block (31); and upper and lower bottom surfaces of the protruding block (11) and upper and lower walls of the groove (34) are all provided with inwardly-recessed channels, the steel ball rolling elements (33) circulating in said channels.
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Citation Information

Patent Citations

  • Sliding table

    CN111716113A

  • Integrated linear motor module

    CN112491236A

  • Linear guide rail device with long service life and high sealing performance

    CN113187811A

  • Linear motor module capable of being used for machine tool feed shaft

    CN116852151A

  • Base and sliding rail integrated flat plate type linear motor module

    CN210724527U

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