Workpiece Clamping Device Centering Mechanism
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Solution Overview
Problem
Existing workpiece clamping devices face challenges in centering the threaded spindle relative to a center plane and maintaining the clamping device simply and easily.
Innovation Solution
A workpiece clamping device design featuring two base bodies with contact surfaces, a centering body, and separate terminal parts with multiple contact surfaces, allowing for precise centering of the threaded spindle without additional support between base bodies, and enabling easy maintenance through releasable attachment and tolerance compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support block with threaded sleeves and strengthening sleeve is used to support the threaded spindle, then the threaded spindle can be supported between base bodies, but the centering of the threaded spindle relative to the center plane becomes complex and requires additional support structures
Solution Approach 1:
The patent removes the support block and its associated threaded sleeves and strengthening sleeve from the system. Instead, the threaded spindle is directly supported by the two base bodies through integrated bearing surfaces, eliminating the need for separate support structures and simplifying the centering mechanism.
Solution Approach 2:
The support function previously separated in the support block is merged into the base bodies themselves. The bearing surfaces are integrated directly into the base bodies, combining the support and centering functions into the primary structural components, thereby reducing overall device complexity.
2Stability of the object's composition
If the base bodies are permanently attached to the support, then structural stability is improved, but maintenance and replacement of components becomes difficult
Solution Approach 1:
The attachment between base bodies and support is made dynamic rather than static. The base bodies can be releasably attached and detached, allowing for maintenance and replacement while maintaining structural stability during operation. This enables the system to transition between stable operation and easy maintenance states.
Solution Approach 2:
The system is divided into separable modules where base bodies can be independently removed and replaced. This segmentation allows maintenance personnel to access and service individual components without disassembling the entire structure, significantly improving ease of repair while maintaining overall structural integrity.
3Manufacturing precision
If additional support structures are added between base bodies to ensure centering, then centering precision is improved, but the device becomes more complex and harder to maintain
Solution Approach 1:
The centering function is built into the base bodies through pre-configured bearing surfaces with precise geometric relationships. The centering geometry is established in advance during base body manufacturing, eliminating the need for additional adjustable support structures and reducing overall device complexity.
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
Ensures centralized clamping of workpieces relative to a center plane with simplified centering and maintenance, reducing the need for additional support and allowing for modular configurations to accommodate various workpiece sizes.
Implementation Method 1
two clamping bodies (45, 46) that can be moved in a clamping direction (R) toward each other or away from each other by driving a threaded spindle (39)
Implementation Method 2
The centering body (47) has one centering surface (48) on each of the two sides facing in clamping direction (R) respectively. The two centering surfaces (48, 49) define a centering plane (M) that is centrally arranged between the two centering surfaces (48, 49)
Implementation Method 3
Each clamping body (45, 46) can comprise a clamping surface (27, 28) with which they act on a workpiece for clamping
Data Source
AI summary
A workpiece clamping device having a first base body on which a first clamping body is slidably supported in a clamping direction, as well as a second base body on which a second clamping body is slidably supported in the clamping direction. The two clamping bodies are in engagement with a threaded spindle. A contact surface is provided on each base body on the side that faces the other base body respectively. The contact surfaces are arranged with base body distance in the clamping direction. A centering body of the threaded spindle has centering surfaces that abut at one assigned contact surface respectively in order to position the threaded spindle in clamping direction without clearance as far as possible.