Threading Device for Precise Hole Blocking
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Solution Overview
Problem
Manual blocking of small-sized holes in workpieces before processes like anodizing is inefficient and lacks precision.
Innovation Solution
A threading device with a rough positioning mechanism, an accurate positioning mechanism, a transmitting mechanism, and a cutting mechanism that aligns and pushes a thread into a hole of a workpiece, allowing for precise blocking using a thread-pushing rod, thread-transmitting rod, and cutting member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual blocking method is used, then operation simplicity is maintained, but productivity and precision are poor
Solution Approach 1:
The threading device is divided into distinct functional modules: a rough positioning mechanism for coarse alignment, an accurate positioning mechanism for precise hole alignment, and a transmitting mechanism for thread delivery. This segmentation allows each module to be optimized independently while collectively achieving high productivity and precision in the hole blocking process.
2Manufacturing precision
If manual blocking method is used, then device complexity is low, but manufacturing precision is poor
Solution Approach 1:
The rough positioning mechanism performs preliminary alignment of the workpiece and thread before the accurate positioning mechanism takes over for final precise positioning. This preliminary action ensures that the thread is pre-aligned with the hole, enabling high precision blocking while managing device complexity through staged positioning.
Solution Approach 2:
The transmitting mechanism acts as an intermediary between the positioning mechanisms and the hole blocking operation. It receives the positioned thread, transports it through the aligned hole, and delivers it to the workpiece, thereby enabling precise hole blocking while coordinating the complex positioning subsystems.
3Productivity
If automated threading device is used, then productivity is improved, but device complexity increases
Solution Approach 1:
The rough positioning mechanism and accurate positioning mechanism are merged into a single integrated positioning system that operates sequentially. This merging allows the device to achieve high automated threading speed while managing complexity by combining multiple positioning functions into one coordinated mechanism rather than separate independent systems.
Data Source
AI summary
The threading device includes a thread-pushing rod, a thread-transmitting rod, a first transmission subassembly, a second transmission subassembly, and a first pushing member. The thread-pushing rod defines a first through hole. The thread-transmitting rod is mounted on the thread-pushing rod and defines a second through hole. The first transmission subassembly includes a first rotating member and a spur gear mounted on the first rotating member. The second transmission subassembly includes a second rotating member and a second spur gear mounted on the second rotating member. The second spur gear meshes the first spur gear. A passage is defined by the first rotating member and the second rotating member. A tangent of the passage is aligned with the first through hole and the second through hole. The first pushing member is coupled to the first rotating member and configured to rotate the first rotating member.