Modular Clamping Device for Grinding Machine Workpiece Positioning
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Solution Overview
Problem
Existing clamping devices for grinding machines are large and inflexible, making it difficult to pivot them into the cup-shaped grinding wheel for appropriate positioning of cutting tools, which reduces throughput and quality due to increased re-clamping and adjustment times.
Innovation Solution
A modular clamping device comprising a support unit, a clamping unit with a rotatably supported and axially movable clamping anvil, and a drive unit with a rotationally drivable drive anvil, allowing for adjustable mounting clearance and flexible positioning of the workpiece relative to the grinding wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a large and rigid clamping device is used to ensure stiffness and accuracy, then manufacturing precision is improved, but the device cannot be pivoted into the cup-shaped grinding wheel for appropriate positioning, reducing adaptability
Solution Approach 1:
The clamping device is divided into modular components: a clamping unit with clamping anvil and clamping element, a drive unit with drive anvil and drive element, and a support unit. These modules can be independently positioned and assembled, allowing the device to maintain stiffness where needed while achieving flexibility in positioning relative to the cup-shaped grinding wheel
Solution Approach 2:
The invention introduces additional positioning dimensions by allowing the clamping device to be pivoted and positioned in multiple orientations. The support unit provides multiple mounting positions and angles, enabling the device to access the cup-shaped grinding wheel from different dimensional perspectives, thus achieving both precision and adaptability
2Reliability
If the clamping device is made large and rigid to maintain stability, then reliability is improved, but the device size increases, requiring more space and reducing ease of operation
Solution Approach 1:
By segmenting the clamping device into separate functional modules (clamping unit, drive unit, support unit), each module can be optimized for its specific function. The clamping and drive elements maintain reliability through rigid construction, while the modular support unit provides ease of positioning and operation
Solution Approach 2:
The invention incorporates dynamic positioning capabilities where the support unit and mounting structures can be adjusted and pivoted to different positions. This dynamic adjustment allows the operator to easily position the device for different workpiece configurations while maintaining stable clamping once positioned
3Adaptability or versatility
If the clamping device is made large to accommodate complex workpieces, then adaptability is improved, but the device complexity increases, resulting in more components and higher maintenance requirements
Solution Approach 1:
The modular clamping and drive units are designed with universal interfaces and adjustable positioning capabilities that can accommodate various workpiece sizes and geometries. The same basic modules can be configured for different applications, reducing overall device complexity while maintaining high adaptability
Solution Approach 2:
The segmented modular design allows each component to perform multiple functions. The support unit provides both structural support and positioning functions, while the clamping and drive units can be independently adjusted for different workpiece requirements, achieving versatility without proportional increases in complexity
4Manufacturing precision
If the clamping device is made large and rigid, then manufacturing precision is improved, but the device throughput decreases due to increased re-clamping and adjustment times
Solution Approach 1:
The modular design allows for preliminary positioning and setup of the clamping and drive units before actual grinding operations. Once positioned, the units can maintain their configuration for multiple workpieces, reducing repeated adjustment times and improving throughput while preserving precision
Solution Approach 2:
The dynamic positioning capabilities of the support unit allow for quick adjustments between workpieces without requiring complete re-clamping. The device can be rapidly repositioned and locked into new configurations, maintaining grinding precision while significantly reducing cycle times between operations
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 modular design enables efficient and precise positioning of cutting tools, allowing for high-quality grinding of complex geometries in a single setting while maintaining the stiffness and accuracy of the grinding machine, thus improving throughput and reducing re-clamping times.
Implementation Method 1
Since the workpiece is only clamped frictionally between the plungers, a high axial and constantly applied clamping force is required
Implementation Method 2
The clamping force can be forwarded by means of a transmission element and may be applied by a rocker construction or lever construction
Data Source
AI summary
A clamping device for holding a workpiece, in particular a cutting tool, during machining in a grinding machine, wherein peripheral grinding of the workpiece is performed by means of a particularly approximately cup-shaped grinding wheel, wherein the clamping device comprises a support unit provided to be mounted on the grinding machine, a clamping unit comprising a clamping anvil supported in a clamping anvil holding element and translationally drivable to apply a clamping force parallel to a clamping axis, and a drive unit comprising a drive anvil supported in a drive axis and rotationally drivable for rotary orientating the workpiece by means of the drive axis. The clamping unit and the drive unit are provided as individual components, which are releasably or slidably attached to the support unit to form a workpiece spindle headstock of the grinding machine.