Motor Assembly Temporary Securing Mechanism for Jig-Free Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric working machines require significant labor and time for assembly due to the need for precise alignment of components using jigs, which increases man-hours and production costs.
Innovation Solution
The electric working machine and its assembly method incorporate a motor assembly with a temporarily securing mechanism that automatically aligns and secures the motor and rod fixture to the body casing without specific jigs, using a tubular fixture and bracing pieces to coaxially arrange screws and holes, allowing for simplified and accelerated assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional assembly methods with jigs are used, then alignment precision is improved, but assembly time and labor cost increase
Solution Approach 1:
The tubular fixture is pre-installed on the rod fixture before assembly, serving as a preliminary alignment guide. This preliminary action establishes the coaxial relationship between components, eliminating the need for time-consuming jig-based alignment during final assembly.
Solution Approach 2:
The tubular fixture acts as an intermediary element between the rod fixture and the operating rod. It provides a mechanical guide that automatically ensures coaxial alignment, mediating the alignment function that would otherwise require complex jigs and manual adjustment.
2Adaptability or versatility
If multiple components are assembled separately, then assembly flexibility is improved, but assembly complexity increases
Solution Approach 1:
The motor and rod fixture are merged into a single motor assembly unit that is pre-assembled and tested together. This merging reduces the number of separate assembly operations required, simplifying the overall assembly process while maintaining the flexibility to assemble different components separately when needed.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An electric working machine and method for assembling the same that do not require specific jigs, so as to facilitate assembling work and reduce man-hours and production cost. A motor assembly 25 is relatively inserted into a body casing 23, with a mounting base 42 disposed behind a partitioning wall portion 24 allowing a tubular fixture 44 to project through an insertion hole 26 toward the front of the partitioning wall portion 24, and a temporarily securing mechanism 39 temporarily secures the motor assembly 25 to retain the position of the motor assembly 25 by automatically moving it in rotating and two orthogonal directions on a plane along the partitioning wall portion 24, so as to coaxially arrange the tubular fixture 44 and insertion hole 26, and through-hole 27 and screw hole 45 of the mounting base 42 for screwing the bolt 28. In such a temporarily secured state, the motor assembly 25 is finally secured by screwing the bolt 28 through the through-hole 27 into the screw hole 45 of the mounting base 42.