Orbital Grinder Braking Mechanism for Defined Pad Positioning
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Solution Overview
Problem
Orbital grinding machines face issues with the mounting plate coming to a standstill in an undefined position and continuing to rotate after the motor is switched off, which delays the automated wheel-changing process.
Innovation Solution
A braking device with a fixed frame, a leaf spring, and a lever connected to a pneumatic or electric actuator is integrated into the machine tool, allowing the actuator to tension the spring and press the lever against the mounting plate to brake it into a defined angular position, preventing further rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the motor is switched off, then energy consumption is reduced, but the mounting plate continues to rotate for a relatively long time, delaying the changing process
Solution Approach 1:
The braking device is activated before the motor is switched off to counteract the rotational momentum of the mounting plate. The actuator engages the brake pad against the mounting plate surface, creating friction that opposes the rotation and brings the plate to a controlled stop, preventing the delay in the wheel changing process
2Device complexity
If the mounting plate is allowed to stop freely, then the device complexity is reduced, but the mounting plate comes to a stop in an undefined position, complicating the automated changing process
Solution Approach 1:
The braking device incorporates a spring-loaded mechanism that automatically positions the brake pad against the mounting plate without requiring external intervention. The spring maintains constant pressure to ensure the plate stops at a predetermined position, enabling the automated changing system to reliably locate and service the wheel
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
This solution enables faster and more reliable automated wheel-changing by ensuring the mounting plate is in a consistent position and immediately stops rotating when the motor is turned off, streamlining the process.
Implementation Method 1
a leaf spring (21), which is fixed to the frame (25) at a first end, and a lever (22), which is connected to a second end of the spring (21). The braking device (2) further comprises an actuator (23) which is designed to move the lever (22), wherein, upon movement of the lever (22), the spring (21) is tensioned
Implementation Method 2
presses a portion of the lever against the mounting plate of the machine tool
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a device with a machine tool and a braking device, the machine tool having an eccentrically supported, rotatable backing pad for receiving a tool. According to one embodiment, the braking device has a frame, which is attached to the machine tool; a spring, a first end of which is fixed on the frame; and a lever, which is connected to a second end of the spring. The braking device also has an actuator, which is designed to move the lever, wherein in the event of a movement of the lever, the spring is compressed and a part of the lever is pressed against the backing pad of the machine tool.