Spectacle Arm Lamination with Indexed Insert Cutting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for manufacturing spectacle arms with slender metal inserts surrounded by external laminated wood fittings face challenges in achieving precise adjustment and shaping of cover plates around the inserts.
Innovation Solution
A process involving grooving of the internal face of a first cover plate with parallel and spaced grooves, using a template with elongated inserts and indexing means, and cutting the cover plates with a tool guided by these means to ensure precise cutting around the inserts, while allowing for laminated construction of the cover plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to manufacture spectacle arms with laminated cover plates and elongated inserts, then the manufacturing process is simpler, but the precision of adjustment and shaping of cover plates around inserts deteriorates
Solution Approach 1:
The template is prepared in advance with pre-positioned elongated inserts, front bridge, and rear bridge. The indexing means are pre-configured on the bridges. This preliminary preparation allows the cover plates to be accurately positioned and shaped without requiring complex real-time adjustments during manufacturing, thereby improving precision while keeping the actual manufacturing process relatively simple.
Solution Approach 2:
The template acts as an intermediary device between the manufacturing process and the final product. It carries the indexing means and guides the cutting tool to achieve precise shaping of cover plates. The front and rear bridges with their indexing means serve as intermediaries to transfer precise positioning information to the cover plates, enabling accurate adjustment and shaping without direct complex control mechanisms.
2Manufacturing precision
If indexing means are added to ensure precise cutting positioning, then cutting precision improves, but the template structure becomes more complex
Solution Approach 1:
The indexing means are segmented into separate front indexing means on the front bridge and rear indexing means on the rear bridge. Each indexing means corresponds to specific elongated inserts (front or rear). This segmentation allows the template to achieve precise cutting positioning at different locations independently, improving overall cutting precision while keeping each indexing subsystem relatively simple and manageable.
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
This method ensures precise adjustment and cutting of cover plates around the inserts, resulting in accurately shaped spectacle arms with improved manufacturing efficiency and accuracy.
Implementation Method 1
grooving an internal face of a first cover plate, so as to provide several grooves in said internal face extending parallel and spaced apart one after the other
Implementation Method 2
the front indexing means and the rear indexing means are formed of holes or notches, and the cutting tool, prior to cutting around an elongated insert, is positioned and held in place with screws -à-vis said slender insert by means of pins engaged in the holes or notches
Implementation Method 3
flattening and gluing a second cover plate on the inside face of the first cover plate, so that the elongated inserts are inserted between the first cover plate and the second cover plate
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A method for manufacturing eyeglass temples (4) comprising the following steps: - grooving an inner face of a first cover plate (1) to create grooves; - providing a template (3) comprising elongated inserts, front and rear bridges (33, 35) joining the front and rear ends of the elongated inserts and equipped with front and rear indexing means (34, 36); - placing the template on the inner face of the first plate so that the elongated inserts are arranged in the grooves; - applying and gluing a second cover plate (2) onto the inner face of the first plate so that the elongated inserts are inserted between the plates; - cutting the plates with a cutting tool (8) around the elongated inserts after being positioned and held in place by cooperating with the front and rear indexing means.