Press-Fitting Jig Positioning for Accurate Stop Control
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Solution Overview
Problem
The existing press-fitting apparatuses face challenges in achieving high accuracy due to delays in stopping the press-fitting tool, resulting from sensor detection, calculation, and motor driving times, leading to misalignment and reduced precision in manufacturing press-fit products.
Innovation Solution
A press-fitting apparatus with a support portion and a pressing mechanism that includes a press-fitting tool with a pressing surface and a restriction surface, equipped with a position setting mechanism to accurately set the pressing and restriction positions based on the dimensions of the press-fitting components, utilizing a press-fitting jig with plural restriction portions arranged at intervals for precise alignment and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a sensor-based control system is used to measure distance and calculate movement, then the press-fitting apparatus can automate the stopping position, but delays occur in detection, calculation, and motor response causing the tool to advance past the intended position
Solution Approach 1:
The press-fitting tool is equipped with a position setting mechanism that pre-establishes the pressing position and restriction position based on the dimensions of the press-fitting component and press-fitting target component. By calculating and setting the required movement distance in advance (before the press-fitting operation begins), the system eliminates real-time calculation delays and ensures the tool stops at the precise intended position without advancing past it.
2Speed
If real-time sensor measurement and motor control are implemented, then the press-fitting tool can be dynamically controlled, but the response time delay causes positioning errors
Solution Approach 1:
The position setting mechanism calculates the movement distance in advance based on pre-measured dimensions of the components, establishing the stopping position before the press-fitting operation begins. This eliminates real-time calculation delays and ensures the tool stops at the precise intended position without advancing past it.
Solution Approach 2:
A restriction portion with a restriction surface is introduced as an intermediary mechanical element that physically contacts the press-fitting target component at a predetermined restriction position. This mechanical intermediary ensures precise positioning by providing a fixed reference point that the press-fitting tool must reach, eliminating reliance on fast but potentially inaccurate electronic sensing and control systems.
Data Source
AI summary
A press-fitting apparatus includes: a support portion and a pressing mechanism having a press-fitting tool configured to move in a press-fitting direction with respect to the support portion. The press-fitting tool includes: a pressing portion having a pressing surface which presses a press-fitting component; a restriction portion having a restriction surface configured to come into contact with a press-fitting target component; and a position setting mechanism which sets a press-fitting position of the pressing surface in the press-fitting direction and a restriction position of the restriction surface in the press-fitting direction according to the press-fitting component and the press-fitting target component.