Bodymaker Ram Attachment Using Segmented Locator and Clamp Ring
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Solution Overview
Problem
The existing bodymaker ram attachment requires significant downtime for dismantling and realignment when removing the ram to change seals, as the clamp ring and flange have a larger diameter than the bore of the ram bush assembly, necessitating removal from the rear of the machine.
Innovation Solution
A ram attachment with a locator and clamp ring system that allows the ram to be securely fixed to the slide block without loosening the locator-slide block connection, using a locking element and adjustable clamp ring to maintain alignment and prevent rotation, enabling the ram to be removed and reinstalled from the front without realignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the clamp ring and flange have a larger diameter than the bore of the ram bush assembly, then the ram can be securely clamped to the slide block, but the ram must be removed from the rear of the machine requiring significant downtime for dismantling and realignment
Solution Approach 1:
The invention divides the attachment system into separate functional components: a locator element that remains fixed to the slide block and a clamp ring that can be independently removed. This segmentation allows the clamp ring to be removed from the front of the machine without disturbing the locator-slide block connection, eliminating the need for rear removal and realignment while maintaining secure clamping during operation
Solution Approach 2:
The locator element acts as an intermediary between the slide block and the ram. It provides a fixed reference point that remains attached to the slide block while allowing the ram and clamp ring to be removed from the front. The locator's cylindrical portion with external threads engages with the ram's internal threads, maintaining alignment without requiring the clamp ring to have a large diameter
2Strength
If the clamp ring and flange have a larger diameter than the bore of the ram bush assembly, then the ram can be securely clamped to the slide block, but extensive disassembly and realignment is required when removing the ram
Solution Approach 1:
The attachment system is segmented into the locator element (fixed to slide block), the ram, and the clamp ring. This allows the clamp ring to be removed from the front without disturbing the locator-slide block connection, simplifying the disassembly process from extensive multi-step dismantling to simply removing the clamp ring bolts
Solution Approach 2:
Instead of removing the entire assembly from the rear as in conventional designs, the invention allows removal from the front by inverting the attachment approach. The locator remains fixed while the ram and clamp ring are detached from the front, reversing the traditional removal direction and eliminating complex disassembly
3Ease of repair
If the ram is removed from the rear of the machine, then the clamp ring and flange can be detached, but the alignment of registration diameter on the locator to bushing assembly must be re-established
Solution Approach 1:
The locator element is pre-aligned and fixed to the slide block before the ram is attached. This preliminary alignment action ensures that when the ram is removed and reinstalled, the alignment is automatically maintained through the locator's fixed position and threaded connection, eliminating the need for re-alignment procedures
Solution Approach 2:
The locator serves as a permanent intermediary that maintains the registration diameter alignment between the slide block and bushing assembly. Since the locator remains fixed to the slide block and provides threaded engagement for the ram, the alignment precision is preserved without requiring re-establishment during maintenance operations
Data Source
AI summary
A bodymaker ram attachment has a screwed locator (60), which is fastened to a slide block (70) of the bodymaker and can be aligned to the machine. A new ram with an internal thread and location diameter is screwed onto the locator. A clamp ring (65) tightens a locking element (80) so as to fix the ram (50) to the locator (60) when screws (68), which fasten the clamp ring to the locator, are tightened. The advantage of this new attachment is that the ram can be removed quickly by loosening the clamp ring and locking element then unscrewing the ram from the locator. The ram can then be removed and replaced by sliding through the front of the machine without the need for further disassembly.