Conductor Shaping Apparatus with Groove and Stopping Member
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Solution Overview
Problem
Conventional conductor shaping apparatuses deform the end portion of conductors during the formation of bent portions due to protrusions interfering with the conductor's end, leading to inaccurate shaping and potential damage.
Innovation Solution
A conductor shaping apparatus that relative rotates upper and lower dies about a rotational axis to form flatwise and edgewise bent portions, using a guiding surface to prevent interference and deformation, with a supporting surface to clamp the conductor tightly and a spring-pressed shaping member to form precise bends without excessive pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a protrusion is used to form the third bent portion in the conventional conductor shaping apparatus, then the third bent portion can be formed, but the protrusion interferes with the end portion of the conductor and deforms it when the movable die is rotated to be separated from the fixed die
Solution Approach 1:
The harmful protrusion is completely removed from the movable die. Instead, a groove is formed to receive the conductor end portion, and a separate stopping member limits the rotation angle to prevent interference with the conductor end portion during die separation.
Solution Approach 2:
A stopping member is introduced as an intermediary element between the movable die and the conductor. This stopping member limits the rotation angle of the movable die, preventing it from interfering with the conductor end portion while still allowing the groove to form the third bent portion.
2Productivity
If the movable die is rotated to form multiple bent portions, then efficient conductor shaping is achieved, but the protrusion causes interference and deformation during the rotation process
Solution Approach 1:
The harmful protrusion is removed from the movable die, eliminating the source of interference during rotation. The groove-based approach allows the conductor end portion to be properly received and shaped without deformation.
Solution Approach 2:
The stopping member acts as an intermediary that controls the rotation process. It allows sufficient rotation to form all three bent portions efficiently while preventing excessive rotation that would cause interference with the conductor end portion.
Data Source
AI summary
A conductor shaping apparatus includes a driving device that relatively rotates an upper die and a lower die and integrally rotates the upper and lower dies with respect to a shaping member. The driving device rotates one of the upper and lower dies in a direction from an edgewise bent portion to a distal end of a conductor so as to separate the one of the upper and lower dies from the other. One of the upper and lower dies includes a supporting surface configured to support a side surface of an end portion of the conductor as the edgewise bent portion is formed in the end portion, and a guide surface that is formed to intersect the support surface. The guide surface extends away from the end portion of the conductor in a direction opposite to a bent direction of a flatwise bent portion closest to the edgewise bent portion as it extends away from the supporting surface on an opposite side of a rotational axis.