Clamping Drive Extension Element for Vise Jaw Range
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Solution Overview
Problem
Clamping drives, particularly in vices, face challenges in securing workpieces with dimensions that exceed the travel path of jaw carriers or clamping jaws, limiting their clamping range.
Innovation Solution
A clamping drive system that includes a detachable extension element attachable to the drive spindle, allowing the clamping parts to be inserted into jaw carriers in a form-fitting manner, enabling the extension of the clamping range by maintaining the drive spindle's position and preventing its removal, with features like bayonet locks, anti-rotation elements, and non-circular contours for secure attachment and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the jaw carriers or clamping jaws are used with standard travel path, then the clamping drive structure remains compact, but the clamping range is limited for larger workpieces
Solution Approach 1:
The drive spindle is segmented into a base spindle and a detachable extension element. The extension element can be attached to increase the effective length of the drive spindle, thereby extending the clamping range for larger workpieces without requiring a completely different clamping drive structure
Solution Approach 2:
The clamping drive system is made dynamically adjustable through the detachable extension element that can be added or removed based on workpiece size requirements. This allows the same clamping drive to adapt to different clamping ranges, transforming a static system into a dynamic one
2Adaptability or versatility
If the drive spindle is made detachable for range extension, then the clamping range can be adjusted, but the risk of spindle removal during operation increases
Solution Approach 1:
The attachment interface between the extension element and the drive spindle uses asymmetric features including a non-circular contour with flat sections and corresponding recesses. This asymmetric design prevents rotational movement and ensures the extension element can only be attached in the correct orientation, eliminating the risk of accidental detachment
Solution Approach 2:
The attachment interface incorporates non-circular contours with flat sections instead of circular symmetry. The flat sections engage with corresponding flat recesses to create a mechanically locked connection that prevents both rotational and axial displacement of the extension element
3Adaptability or versatility
If the extension element is added to increase clamping range, then larger workpieces can be clamped, but the device complexity increases
Solution Approach 1:
The drive spindle is divided into a standard base spindle and a separate extension element. This segmentation allows the extension functionality to be added only when needed, keeping the basic clamping drive simple for small workpieces while providing extended capability for larger workpieces through the optional extension element
Solution Approach 2:
The extension element serves multiple functions: it extends the clamping range for larger workpieces, provides a standardized attachment interface for reproducible assembly, and includes anti-rotation features that also serve as alignment references. This multi-functionality reduces the need for additional separate components
Data Source
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AI summary
The invention relates to a clamping drive (1) with a first clamping part (2) and with a second clamping part (3), wherein the first clamping part (2) and the second clamping part (3) are each connectable or connected to a jaw carrier (4), wherein the first clamping part (2) and the second clamping part (3) are translationally movable relative to each other by means of a drive spindle (5), wherein the first clamping part (2) is arranged on a first end face (6) of the drive spindle (5) and wherein the second clamping part (3) is arranged on a second end face (7) of the drive spindle (5).In a clamping drive (1) that makes it possible to extend the clamping range of the clamping drive (1), in particular a clamping drive for a vise, it is provided that the first clamping part (2) is detachably connectable to the drive spindle (5), that an extension element (12) is provided, wherein the extension element (13) can be attached with a first end (13) to the first end face (6) of the drive spindle (5) when the first clamping part (2) is detached from the drive spindle (5), wherein the first clamping part (2) can be attached to a second end (14) of the extension element (12), so that in an extended state of the drive spindle (5) the extension element (12) is arranged between the drive spindle (5) and the first clamping part (2).