Funnel-Shaped Spindle Sprayer With Integrated Cooling Ducts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing spindle protection systems for dental milling cutters fail to prevent dust and machining residues from reaching the spindle and bearings during machine shutdown and do not allow adequate lubrication and cooling of the milling cutter without separate nozzles or devices, leading to wear and potential malfunctions.
Innovation Solution
A sprayer with a funnel-shaped body containing convergent passage ducts for lubricating/cooling fluids, which directs jets of fluid onto the milling cutter, providing protection from dust and residues while allowing for integrated lubrication and cooling without separate nozzles, and is made using 3D printing or metallic materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cap is used to protect the spindle and bearings region, then protection from dust and machining residues is improved, but adequate lubrication and cooling of the milling cutter cannot be achieved without separate nozzles
Solution Approach 1:
The patent combines the protective cap function with lubrication and cooling functions into a single integrated device. The cap includes internal channels that deliver lubricating/cooling fluid directly to the milling cutter cutting edges, eliminating the need for separate nozzles and reducing overall device complexity while maintaining protection capabilities
Solution Approach 2:
The cap is designed to perform multiple functions simultaneously: it protects the spindle and bearings from dust, delivers lubricating/cooling fluid to the cutting edges, and directs air jets to remove machining residues. This multi-functional design eliminates the need for separate dedicated components for each function
2Productivity
If pneumatic blowers and suction means are used to remove machining residues, then removal during machining is improved, but prevention of dust deposition during machine shutdown is not achieved
Solution Approach 1:
The cap includes air jets that can be activated before machining operations begin to prevent dust and machining residues from depositing on the spindle and bearings during machine shutdown periods. This preliminary action maintains cleanliness without interfering with the primary machining removal function
3Reliability
If separate nozzles are used for lubrication and cooling, then adequate lubrication and cooling are achieved, but construction complexity and overall cost increase
Solution Approach 1:
The lubrication and cooling functions are merged into the cap structure itself through internal channels that deliver fluid directly to the cutting edges. This integration maintains adequate lubrication and cooling effectiveness while significantly reducing construction complexity and eliminating separate nozzle components
Solution Approach 2:
The cap serves itself by incorporating the lubrication and cooling delivery system within its own structure. The cap does not require external separate nozzles to perform its protective function, as it independently delivers the necessary lubricating/cooling fluid through its integrated channels
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 sprayer effectively protects the spindle and bearings from dust and residues, ensures adequate lubrication and cooling of the milling cutter, reduces construction complexity and cost, and is highly reliable and easy to implement.
Implementation Method 1
such jets being directed onto such tool by the sprayer
Implementation Method 2
pl passage ducts for a lubricating/cooling fluid inside said body
Data Source
Figure 1
Figure 2~3
Figure 4a~4b
AI summary
A sprayer (10) for a tool holding spindle (11), the sprayer (10) comprising a substantially funnel-shaped body (13) having, along its axis of extension (X): - a first annular end (14), - a second annular end (15) with a smaller diameter than the first annular end (14), at the second annular end (15) there being an outlet (16) for the exit of the spindle (11). The sprayer (10) comprises a plurality of passage ducts (17, 24) for a lubricating/cooling fluid within the body (13), the ducts (17, 24) being inside the material that constitutes the walls of the body (13) and having a course that is at least partially convergent toward the axis of extension (X).