Tapered Threaded Insert Mounting for Precise Tool Clamping
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Solution Overview
Problem
Existing threaded inserts for tools with fastening threads are difficult to mount precisely and securely in tool receptacles without complex structural measures, and adhesives are rarely used in machine tool engineering for such applications.
Innovation Solution
A threaded insert with a tapered plug-in region and adhesive depressions for secure press fit and adhesive connection, combined with optional features like conical or polygonal contours, blocking grooves, and additional fastening mechanisms like external threads or force fits, to ensure simple and precise mounting and rotational security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a threaded insert is arranged in a receiving body to be movable transversely with respect to the longitudinal axis for clamping with high concentricity accuracy, then the clamping accuracy and thread protection are improved, but the structural complexity increases due to required structural measures for radial movability
Solution Approach 1:
The threaded insert is designed to be movable transversely with respect to the longitudinal axis of the receiving body, allowing dynamic adjustment during clamping to achieve high concentricity accuracy. This dynamic capability enables the insert to self-align and compensate for positioning tolerances without requiring complex pre-positioning structures.
Solution Approach 2:
The threaded insert utilizes its own structural features (such as the conical plug-in region) to achieve self-centering and self-alignment within the receiving body. The insert automatically positions itself during insertion, eliminating the need for additional complex guiding or positioning mechanisms.
2Ease of manufacture
If adhesive is used to fasten the threaded insert in the receiving opening, then the mounting simplicity and rotational security are improved, but the ease of repair decreases due to permanent bonding
Solution Approach 1:
The adhesive connection parameters (such as adhesive type, application amount, and curing conditions) are selected to provide strong bonding during normal operation while allowing controlled release through heating. This parameter optimization enables the adhesive to function as both a permanent fastener and a temporarily reversible connection.
Solution Approach 2:
The receiving body is designed with thermal expansion characteristics that allow adhesive release through corresponding heating. By controlling the temperature, the adhesive bond can be weakened or broken, enabling removal and replacement of the threaded insert without mechanical damage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for easy, accurate, and secure mounting of threaded inserts in receiving bodies, providing enhanced vibration damping, corrosion protection, and sealing capabilities, while enabling easy replacement by releasing the adhesive connection.
Implementation Method 1
The threaded insert can thus be plugged into a receiving opening of a receiving body with an adhesive introduced into the depression and can be held in a firm and rotationally secure manner not only by a press fit between the receiving body and the threaded insert but also by the additional adhesive connection
Implementation Method 2
The use of an adhesive which fastens the threaded insert by surface attachment (adhesion) and its inner strength (cohesion) in the receiving opening of a receiving body
Implementation Method 3
The threaded insert can thus be plugged into a receiving opening of a receiving body with an adhesive introduced into the depression and can be held in a firm and rotationally secure manner not only by a press fit between the receiving body and the threaded insert
Data Source
AI summary
The invention relates to a threaded insert for securing a tool provided with a securing thread in a tool receiving area. The threaded insert contains a receiving opening with an inner thread for screwing in the tool at the front end face. According to the invention, the threaded insert has a plug-in region which tapers towards the rear end face and which comprises an outer support surface, and at least one depression for receiving an adhesive is arranged on the outer contact surface. The invention additionally relates to a receiving element for such a threaded insert and to a tool receiving area comprising such a threaded insert and a corresponding receiving element.