Grinder Mount Disk Automatic Engagement Mechanism
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Solution Overview
Problem
The existing grinders used in semiconductor packaging processes require a significant amount of time and effort to exchange the grinding wheel, making the process cumbersome and difficult for operators.
Innovation Solution
A grinder design featuring a spindle, grinding wheel, inner and outer disks, and combination shafts that allow for automatic engagement and disengagement based on rotation direction, enabling quick and efficient replacement of the grinding wheel by rotating the spindle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bolts and fasteners are used to secure the grinding wheel, then the grinding wheel can be firmly attached, but the exchange process becomes time-consuming and difficult
Solution Approach 1:
The mounting mechanism is divided into separate functional components: the mount disk with engagement features, the combination shafts with geared portions and screwed portions, and the grinding wheel with corresponding engagement structures. This segmentation allows for rapid assembly and disassembly without complex fastening operations.
Solution Approach 2:
The system uses self-engaging mechanisms where the combination shafts automatically engage with the grinding wheel through gear interaction and screw threading when the mount disk rotates, eliminating the need for manual fastening operations and reducing exchange time.
2Reliability
If manual fastening operations are required for grinding wheel exchange, then secure attachment is achieved, but operator difficulty and complexity increase
Solution Approach 1:
The combination shafts are designed to automatically engage and secure the grinding wheel through gear and screw mechanisms that self-actuate upon rotation of the mount disk, eliminating manual fastening operations and reducing operator difficulty.
Solution Approach 2:
The mount disk acts as an intermediary component that mediates between the spindle and the grinding wheel, providing a simplified interface for wheel attachment and removal through rotational motion that automatically triggers the engagement mechanisms.
3Productivity
If automated engagement mechanisms are implemented, then exchange speed improves, but device complexity increases
Solution Approach 1:
Multiple functions are merged into the combination shafts, which integrate geared portions for rotational engagement and screwed portions for axial securing, eliminating the need for separate fastening components and reducing overall system complexity despite automated functionality.
Solution Approach 2:
The mount disk serves multiple functions: it transmits rotational motion from the spindle, engages the combination shafts through gear interaction, and controls the axial movement of the grinding wheel via the screwed portions, providing a multi-functional component that reduces the need for additional specialized parts.
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 rapid and easy exchange of the grinding wheel, reducing the time and difficulty associated with maintenance and replacement, thereby improving operational efficiency in semiconductor wafer processing.
Implementation Method 1
The spindle may be configured to generate a rotary force
Implementation Method 2
The geared portion may be configured to engage the inner gear surface and the outer gear surface
Implementation Method 3
The screwed portion may be extended from the geared portion. The screwed portion may be configured to engage or disengage the grinding wheel based on a rotation direction of the geared portion
Data Source
AI summary
A grinder may include a spindle, a grinding wheel and a mount disk. The spindle may be configured to generate a rotary force. The grinding wheel may be configured to receive the rotary force from the spindle and grind an object. The mount disk may be between the spindle and the grinding wheel and may be configured automatically engage or disengage the grinding wheel based on a rotation direction of the mount disk. Thus, an exchange or replacement of the grinding wheel may be performed in a short time by rotating the spindle so that the grinding wheel is disengaged from the mount disk.