Spindle Tool Holder Gauge for One-Handed Critical Distance Setting
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Solution Overview
Problem
Current methods for measuring and adjusting the critical distance of the tool holding portion in machine tool spindles are inefficient, requiring manual handling of measuring devices and compromising accuracy and speed due to the vertical orientation of spindles.
Innovation Solution
A device with a magnetic attachment and a compressible indicator tip that allows single-handed measurement and adjustment of the tool holding portion, enabling simultaneous rotation and measurement of the spool component relative to the spindle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a micrometer caliper is used to measure the critical distance, then measurement can be performed, but it requires two hands (one for holding the measuring device, one for adjusting the spool) and compromises accuracy and speed
Solution Approach 1:
The patent combines the measurement function and adjustment function into a single integrated device. The indicator gauge is mounted on an adjustable arm that can be positioned and locked, allowing the device to simultaneously measure the critical distance and allow adjustment of the spool position through a single set screw mechanism.
Solution Approach 2:
The patent introduces an intermediary adjustable arm with a locking mechanism that mediates between the fixed indicator gauge and the movable spool. This intermediary structure allows the indicator to remain stable for accurate measurement while the spool can be adjusted independently through the set screw, enabling single-handed operation.
2Productivity
If the spindle is mounted vertically above the operator's head, then the machine tool configuration is standard, but it becomes difficult to accurately measure and adjust the tool holding portion
Solution Approach 1:
The patent extends the measurement capability into the vertical dimension by providing an adjustable arm that can reach upward to the vertically mounted spindle. The indicator gauge can be positioned at the appropriate height, and the adjustable arm allows the operator to access the measurement point from below, making it easier to read the measurement and perform adjustments without strain.
3Ease of operation
If the spool is adjusted by rotating it in or out of the clamp set, then the critical distance can be changed, but it requires precise manual adjustment that is difficult to verify accurately
Solution Approach 1:
The patent incorporates a dial indicator or digital gauge that provides real-time feedback on the critical distance as the spool is adjusted. The indicator is positioned to contact the spool or a reference surface, and as the spool rotates in or out, the indicator displays the changing distance, allowing the operator to see exactly when the target critical distance is achieved.
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
Facilitates accurate and speedy positioning of the tool holding portion, allowing one person to measure and adjust the critical distance with higher precision and ease, improving the efficiency of tool installation and verification.
Implementation Method 1
The datum surface includes a magnetic portion for magnetically connecting a distal end of the first component to the datum surface
Data Source
AI summary
A device for simultaneously measuring and adjusting the tool holding portion of a spindle. The device has a body defining a datum surface providing a magnetic portion and an indicator portion. A socket extends from the magnetic portion, the socket dimensioned and adapted to receive and seat a first component of the tool holding portion on the magnetic portion. A compressible indicator tip extends in an outward-biased manner from the indicator portion, wherein a distance from the distal end of the indicator tip and the indicator portion of the datum surface is displayed along the body.