Clamping Hook Positioning Pin Guide Area
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Solution Overview
Problem
Existing devices for positioning and clamping workpieces are complex, require multiple moving components, and lack robustness and ease of maintenance.
Innovation Solution
A device with a stationary stop pin and a positioning pin that receives a guide area from the stop pin, allowing for simple axial displacement of clamping hooks, which can be designed with a widening or tapering cross-section for transverse movement, and includes a restoring mechanism to ensure proper engagement and return of the clamping hooks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple moving components are used to enable clamping hook movement, then the clamping function can be achieved, but the device complexity increases and robustness decreases
Solution Approach 1:
The guide area is integrated directly into the stationary stop pin structure, combining the guiding function and stopping function into a single component. This eliminates the need for separate guide mechanisms, reducing the number of moving parts while maintaining the clamping hook movement capability.
Solution Approach 2:
The guide area is designed with a specific cross-sectional shape (widening or tapering) that segments the movement path into controlled zones. This geometric segmentation enables the clamping hook to follow a predetermined transverse movement path during axial displacement, achieving complex motion with simple structural elements.
2Manufacturing precision
If multiple moving components are used for clamping hook displacement, then positioning accuracy can be achieved, but maintenance requirements increase
Solution Approach 1:
The guide area of the stop pin provides self-guidance for the clamping hook during axial displacement. The geometric contour of the guide area automatically controls the transverse movement of the clamping hook without requiring additional active control mechanisms, reducing maintenance needs while maintaining positioning accuracy.
3Reliability
If a simple structure with minimal components is used, then robustness and ease of maintenance are improved, but adaptability of clamping hook movement is reduced
Solution Approach 1:
The guide area can be designed with different cross-sectional contours (widening, tapering, or constant cross-section) to adapt to different clamping requirements. By changing the geometric parameters of the guide area, the movement characteristics of the clamping hook are adjusted without requiring fundamental structural changes, maintaining robustness while providing adaptability.
Data Source
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AI summary
The invention relates to a device (1) for positioning and clamping workpieces (24), comprising a housing (2), a positioning pin (3) axially displaceable within the housing (2), the positioning pin (3) being movable by means of a drive unit (11). One end of the positioning pin (3) extends axially (Z) out of the housing (2), the positioning pin (3) receiving at least one clamping hook (6) in the region of the extended end, the clamping hook (6) being displaceable transversely to the axial direction (Z) within the positioning pin (3). The device (1) further comprises a stop pin (4) which is fixedly mounted in the housing (2), wherein a guide area (5) of the stop pin (4) protrudes from the housing (2), the positioning pin (3) receives this guide area (5) and the guide area (5) acts on the clamping hook (6) when the positioning pin (4) is moved.