Positioning clamp of metal processing machine tool

By designing a clamping system driven by a pneumatic slider and a forward and reverse motor, the problem of low adaptability of existing machine tool clamps has been solved, and a stable clamping and convenient operation of various workpieces has been achieved.

CN121104713APending Publication Date: 2025-12-12LIANYUNGANG YIHANG JINGGONG TECH CO LTD +1
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Patent Information

Application Number
CN202511631598.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

The fixtures on existing machine tools are mostly vises or chucks, which are usually only suitable for a small number of one or two types of workpieces. This results in the need to change fixtures or machine tools when processing multiple types of workpieces, which is not only unsuitable but also inconvenient to operate.

Method used

A positioning fixture for metalworking machine tools was designed, which adopts a pneumatic slider and a forward and reverse motor-driven gear system. Through the combination of Z-shaped bracket and triangular arc plate, it can adapt to various types of workpieces such as rods, tubes, squares and spheres. By utilizing the multi-segment structure of the placement hole and chuck and the deflection of the arc-shaped connecting rod, it can achieve stable clamping and avoid the need to change fixtures or machine tools.

Benefits of technology

It achieves stable clamping of various workpieces, improves ease of use and adaptability, and can process various workpieces without changing fixtures or machine tools, meeting diverse workpiece clamping needs.

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Abstract

The invention relates to the technical field of clamp equipment, and discloses a positioning clamp of a metal processing machine tool, which comprises a base, a sliding rail, a pneumatic sliding block, a supporting plate, a first chuck, a second chuck and the like, a positive and negative rotation motor is powered on to drive a driving gear to be meshed with a gear ring to rotate, the gear ring drives an arc-shaped connecting rod to pull a triangular arc-shaped plate to deflect around a connecting shaft of a fixing ring, the attached arc-shaped plate is dispersed in a vortex shape, and the arc-shaped tip, close to the center of a placement hole, of the arc-shaped plate is exposed out of an approximate circular hole to expose the placement hole; after the rod-like workpiece is inserted, the motor rotates reversely, the arc-shaped connecting rod is linked to push the triangular arc-shaped plate to reset, the arc-shaped tip is tightly attached to the outer wall of the workpiece for clamping and locking, and different inner diameter sections of the placing hole lift the workpiece; a square workpiece is clamped, a positioning plate bolt is screwed, a chuck is rotated to be fixed by 90 degrees, and a pneumatic sliding block approaches along a sliding rail with the chuck and is clamped by the flat end face of the chuck; balls are clamped, and after triangular arc-shaped plates are dispersed, the space between chucks is adjusted so that approximate circular holes can be clamped tightly; and the device is suitable for various workpieces, and is convenient and stable.
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Citation Information

Patent Citations

  • Precise vice clamp for accurately positioning machine tool machining parts

    CN209140403U

  • Forging and positioning tool for automobile hardware production

    CN113441671A

  • Disc type workpiece clamping tool

    CN115255973A

  • Lathe right supporting clamp

    CN213351597U

  • Tool clamp of numerical control machine tool

    CN214518986U