Support Arm Brake Mechanism for Precise Positioning
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Solution Overview
Problem
Existing robotic support arms lack a positioning function, which prevents them from securely fastening objects at predetermined positions, compromising subsequent operations.
Innovation Solution
A Support arm with a brake mechanism comprising a fixing frame, resilient device, brake, supporting rod, and flexible components, where the brake mechanism engages to stabilize the object at a desired height, using a magnetic system to switch between releasing and braking positions controlled by an electrical switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a resilient component is used to provide supporting force for the support arm, then the support arm can move up and down to transport objects, but the support arm lacks a positioning function and cannot fasten objects steadily at predetermined positions
Solution Approach 1:
The patent combines the resilient supporting component with an electromagnetic braking component into an integrated brake mechanism. The resilient component (spring) provides continuous supporting force for vertical movement, while the electromagnetic brake (with armature, coil, and friction plate) adds positioning capability. When the support arm reaches the desired height, the electromagnetic brake engages to lock the position, resolving the contradiction between movement capability and positioning function.
Solution Approach 2:
The brake mechanism serves multiple functions: the resilient component provides continuous mechanical support during movement, while the electromagnetic braking unit provides on-demand positioning and locking. This multi-functional design allows the same mechanism to handle both the dynamic movement phase and the static positioning phase, eliminating the need for separate positioning mechanisms.
2Reliability
If an electromagnetic brake mechanism is added to provide positioning function, then the support arm can fasten objects at predetermined positions, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical locking mechanisms with an electromagnetic braking system. Instead of using mechanical gears, cams, or linkages for positioning, the invention uses an electromagnetic coil that generates magnetic force to actuate an armature, which in turn engages a friction plate to lock the support arm. This electromagnetic approach simplifies the control system and reduces mechanical complexity while maintaining reliable positioning.
Solution Approach 2:
The electromagnetic brake utilizes changes in electrical parameters (current flow through the coil) to control the positioning function. When voltage is applied to the coil, it generates magnetic field strength that actuates the armature; when voltage is removed, the magnetic field collapses and the brake releases. This parameter-based control allows for simple on/off positioning control without complex mechanical adjustment mechanisms.
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
Enables the Support arm to securely position and fasten objects at predetermined heights, enhancing operational ease and stability by providing a resilient support force and precise control over the supporting rod.
Implementation Method 1
The resilient component is disposed in the mounting slot of the mounting base and has an end abutting against the first side surface of the mounting base
Implementation Method 2
a resilient component, and an end cover. The mounting base is disposed at the fixing frame and has a first side surface
Implementation Method 3
If the armature is in a state of electrical disconnection, the armature plate will be attracted to the armature, thereby switching the brake to a braking position
Data Source
AI summary
A Support arm with brake mechanism, characterized in that: a resilient component generates a resilient force acting in opposition to gravity, such that a supporting rod can move an object steadily; and, in the course of moving the object, a brake is started as needed to brake the supporting rod and fasten the supporting rod to a predetermined position.