Caliper Body Identifier Placement for Machining Accuracy
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Solution Overview
Problem
The quality of caliper bodies and disk brakes needs improvement, particularly in terms of machining accuracy and tool longevity due to the formation and removal of identifiers during the casting process.
Innovation Solution
A caliper body design that includes a cylinder portion with a piston and a bleeder boss portion with a bleeder hole, where at least one identifier is formed in a region hidden by a bleeder plug attached to the bleeder boss portion, allowing for improved recognition of attachment positions without the need to remove unnecessary identifiers during machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If identifiers are formed on the caliper body during casting, then attachment position recognition is enabled, but unnecessary identifiers must be removed during machining which reduces machining accuracy and tool longevity
Solution Approach 1:
The patent applies local quality by forming identifiers at specific locations on the caliper body where they are needed for attachment position recognition, while intentionally placing at least one identifier in a region that will be hidden by the bleeder plug. This selective positioning ensures that only necessary identifiers remain visible after assembly, eliminating the need to remove unnecessary identifiers during machining and thereby preserving machining accuracy.
Solution Approach 2:
The patent implements preliminary action by pre-positioning the bleeder plug on the caliper body before final assembly, allowing the identification of which identifier regions will be hidden. This enables the casting process to form identifiers with precise spatial awareness, ensuring that at least one identifier is placed in a hidden region from the outset, thus avoiding subsequent machining operations to remove unnecessary identifiers.
2Loss of information
If identifiers are formed on the caliper body during casting, then attachment position recognition is enabled, but removal of unnecessary identifiers increases device complexity and processing steps
Solution Approach 1:
By forming identifiers at specific local positions on the caliper body with awareness of the bleeder plug location, the patent ensures that unnecessary identifiers are placed in hidden regions. This eliminates the need for additional machining steps to remove identifiers, thereby reducing device complexity and processing steps while maintaining attachment position recognition capability.
Solution Approach 2:
The patent performs preliminary positioning of the bleeder plug during the casting process to pre-determine which identifier regions will be hidden. This preliminary action allows the casting system to directly form identifiers in appropriate locations without requiring subsequent removal operations, thereby simplifying the overall manufacturing process and reducing device complexity.
3Loss of information
If identifiers are formed on the caliper body during casting, then attachment position recognition is enabled, but machining operations to remove unnecessary identifiers increase loss of time
Solution Approach 1:
The patent applies local quality by strategically positioning identifiers on the caliper body, with at least one identifier placed in a region hidden by the bleeder plug. This ensures that after assembly, only the necessary identifiers remain visible, eliminating the need for time-consuming machining operations to remove unnecessary identifiers and thereby reducing total manufacturing time.
Solution Approach 2:
The patent implements preliminary action by pre-positioning the bleeder plug during casting to identify hidden regions, allowing the casting process to directly form identifiers in appropriate locations. This eliminates subsequent machining operations entirely, saving significant machining time while maintaining attachment position recognition capability.
Data Source
AI summary
This caliper body includes a cylinder portion (26) that has a piston disposed therein and is internally provided with a liquid pressure chamber, a bleeder boss portion (29) that communicates with the liquid pressure chamber and includes a bleeder hole configured to discharge air from the liquid pressure chamber, and a plurality of identifiers (112 and 116). At least one identifier (112) of the identifier (112 and 116) is formed in a region hidden by a bleeder plug (131) attached to the bleeder boss portion (29).