---
publication_id: "OT-2026-000001564"
title: "Adaptive tool holder for robotic arm"
published_at: "2026-09-15T19:06:42.333406Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001564"
categories:
  - "manufacturing-assembly-equipment/joining-and-welding"
keywords:
  - "b23k20/1255"
  - "b23k20/1255"
  - "b23k20/1255"
  - "b23k20/12"
  - "b25j11/00"
  - "b25j11/005"
---

# Adaptive tool holder for robotic arm

## Abstract

An adaptive tool holder of a robotic arm includes: a tool shank; a hollow barrel seat, connected below the tool shank; a ball spline with an upper section, an outer convex ring and a lower section; a spring seat, disposed within the barrel seat and located on the upper section of the ball spline; an elastic element, disposed within the barrel seat, where both ends of the elastic element abut against a bottom of the tool shank and the spring seat respectively; a spring guide pin, disposed through the spring seat; a connecting post, disposed within the lower section of the ball spline, where a top of the connecting post is connected and fixed to the spring guide pin; and a friction stir welding tool inserted and fixed detachably at a bottom end of the connecting post.