Camshaft Receiving Assembly for Precise Gearwheel Grinding Alignment
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Solution Overview
Problem
Existing camshaft receiving arrangements suffer from position errors and tolerance issues between the gearwheel toothing and functional elements due to shrink-fitting, leading to short service lives and difficulties in precise machining.
Innovation Solution
A receiving arrangement with a gearwheel featuring a receiving means, such as a conical recess, allows for precise engagement with a receiving body, enabling grinding machining with minimal concentricity errors by forming a common geometrical grinding center, which can be produced with narrow tolerances, even in camshafts with protruding shaft ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the gearwheel is shrink-fitted onto the shaft body before machining, then the gearwheel can be securely mounted, but position errors occur between the toothing and functional elements
Solution Approach 1:
The invention applies preliminary action by machining the functional elements on the shaft body before shrink-fitting the gearwheel. This sequence ensures that the shaft body's functional elements are precisely machined while the gearwheel is still separate, eliminating position errors that would occur if machining were attempted after shrink-fitting. The gearwheel is then shrink-fitted onto the already-machined shaft body, securing it firmly without compromising the precision of the functional elements.
2Strength
If the gearwheel is pressed onto the shaft body, then mounting can be achieved, but excessively large position deviations occur between the toothing and functional elements
Solution Approach 1:
The invention resolves this contradiction by performing the machining of functional elements on the shaft body before the gearwheel is pressed or shrink-fitted onto it. This preliminary machining ensures that all functional elements achieve their final precise dimensions and positions while the gearwheel is still separate. After machining, the gearwheel is then pressed onto the shaft body, which secures the mounting without affecting the previously achieved position tolerances of the functional elements.
Data Source
AI summary
Receiving arrangements for receiving camshafts and methods for grinding machining camshafts may be used with camshafts that have a shaft body that extends along an axis of rotation and includes functional elements. A gearwheel may be mounted on the shaft body, wherein a receiving body is provided, by means of which the camshaft can be at least partially received for purposes of performing a grinding machining process. The gearwheel may include a receiving means onto which the receiving body can be engaged and by way of which it is made possible for the camshaft to be received by the receiving body.