Cooking Vessel Sensor Tunnel Drilling With Two-Stage Boring
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Solution Overview
Problem
The existing method for drilling tunnels in cooking vessels for sensor reception is inefficient due to the use of fragile, small-diameter drill bits, which lead to premature wear, deviation issues, and difficulties in chip evacuation, resulting in low production rates and inconsistent tunnel dimensions.
Innovation Solution
A method involving a pre-drilling step with a larger diameter drill followed by deep drilling with a smaller diameter drill, along with axial oscillation and controlled rotational speeds, to stabilize the drill bit and optimize production rates, ensuring consistent and rectilinear tunnel dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a small-diameter drill bit is used to drill through the bottom thickness, then the sensor can be positioned at the required distance from the edge, but the drill bit becomes fragile and wears out prematurely
Solution Approach 1:
The drilling process is divided into two distinct stages: first drilling a pilot hole with a small-diameter drill bit to establish accurate positioning, then using a larger-diameter drill bit to complete the tunnel. This segmentation allows each drill bit to be optimized for its specific function, with the small drill providing precision and the large drill providing structural support and chip evacuation capability.
2Manufacturing precision
If a small-diameter drill bit is used, then the sensor can be positioned sufficiently offset from the edge, but the drill deviation increases and production rate decreases
Solution Approach 1:
The pilot hole is drilled first to establish the precise centerline and positioning before the main drilling operation. This preliminary action creates a guide path that ensures the subsequent larger drill bit follows the correct trajectory, guaranteeing dimensional consistency without requiring excessive slow-down for precision control during the main drilling phase.
3Manufacturing precision
If a small-diameter drill bit is used, then the tunnel can be drilled through the bottom, but chip evacuation becomes difficult and heat concentration increases
Solution Approach 1:
The drilling operation is segmented into pilot drilling and main drilling phases. The pilot hole provides initial dimensional control, while the subsequent main drilling with the larger bit features optimized chip evacuation geometry and heat dissipation capabilities, eliminating the need for frequent pecking cycles.
Solution Approach 2:
The drill bit geometry is enhanced by adding evacuation channels and cooling pathways that extend through the bit structure. These additional dimensional features allow chips to be evacuated along multiple paths and provide thermal management without compromising the precision of the drilled tunnel.
Data Source
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AI summary
The invention relates to a method for drilling a tunnel (11) for receiving a sensor, in particular a temperature sensor, in a cooking receptacle (1) comprising a cap (2) comprising a bottom (3 ) having a thickness (e), said method comprising a step of drilling said tunnel carried out in the thickness (e). According to the invention, the drilling step comprises a pre-drilling step using a drill of diameter D1 and a step of deep drilling using a drill of diameter D2, D1 being greater than D2.