Force Sensor Cable Routing via Arm Through-Hole
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In robot systems with force detecting devices, the electric cables often interfere with peripheral jigs and tools due to their layout, making it difficult to position them accurately and increasing the risk of cable stress when the robot arm changes posture.
Innovation Solution
A force detecting device with a recess on its outer surface and a through-hole in the robot arm allows the electric cable to be inserted directly into the arm, reducing interference and stress, and includes a ring-shaped connecting member and notched sections for screw fixation, enabling easier cable management and reduced device diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electric cable is disposed around the force detecting device, then the force detecting device can be connected to the robot arm, but the electric cable interferes with peripheral jigs and tools and causes deviation of setting positions
Solution Approach 1:
The electric cable is inserted through a through-hole in the robot arm and routed through the interior space of the force detecting device, nesting the cable within the device structure rather than allowing it to extend externally. This eliminates cable interference with peripheral jigs and tools while maintaining connection reliability
2Reliability
If the electric cable is disposed around the force detecting device, then the force detecting device can be connected to the robot arm, but it becomes difficult to lay out the electric cable
Solution Approach 1:
The cable routing path is extracted from the external periphery and moved to the interior through-hole of the robot arm. The cable is inserted through the through-hole from the rear surface side of the force detecting device, separating the cable path from the peripheral area and simplifying cable layout
3Ease of operation
If the electric cable is drawn around on the outside of the force detecting device, then the cable can be connected, but excessive stress occurs in the cable according to robot arm posture changes
Solution Approach 1:
The cable is nested within the force detecting device structure by routing it through the through-hole and positioning it in the interior space. This protects the cable from external stresses caused by robot arm posture changes and eliminates the need for external cable management
Data Source
AI summary
A force detecting device includes a recess located on the outer surface of the force detecting device and an electric connector provided in the recess. An electric cable for the force detecting device attached to the electric connector is inserted into the through-hole.