Masking Jig Attachment Using Dual-Robot Synchronization
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Solution Overview
Problem
The existing masking operations using masking jigs are inefficient due to increased cycle time requirements for attaching and positioning masking jigs on workpieces, especially when using robots, as they necessitate multiple sequential steps that prolong the masking process.
Innovation Solution
A masking device comprising two robots, one with an object gripping part and the other with a masking jig gripping part, along with an applying unit for adhesive, which detects and corrects misalignments to efficiently attach and position the masking jig on the workpiece, reducing cycle time by sharing processes and using a temporary placement table for alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a robot is used to attach masking jig to workpiece through sequential steps (taking out workpiece, positioning, applying adhesive, taking out masking jig, withdrawing), then the masking operation can be automated, but the cycle time for the masking operation is increased
Solution Approach 1:
The patent combines the workpiece holding function and masking jig attachment function into a single robotic system. The robot holds both the workpiece and masking jig simultaneously, allowing adhesive application and jig attachment to occur in an integrated manner rather than as separate sequential steps, thereby reducing cycle time while maintaining automation.
Solution Approach 2:
The robot performs preliminary positioning of both the workpiece and masking jig before adhesive application. By pre-positioning components and maintaining their relative positions during the adhesive application process, the system eliminates the need for separate positioning steps and reduces overall cycle time while keeping the operation automated.
2Manufacturing precision
If adhesive is applied to workpiece and masking jig is attached, then the masking operation is completed, but the sequential nature of these steps increases the total operation time
Solution Approach 1:
The robotic system maintains continuous useful action by holding both the workpiece and masking jig throughout the adhesive application process. The robot moves the masking jig and applies adhesive in a continuous motion without stopping for repositioning or separate attachment steps, thereby improving productivity while maintaining positioning accuracy through continuous control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces the total operation time and cycle time for the masking process by enabling simultaneous and precise attachment of the masking jig, even when initial alignment is off, and utilizing a water-soluble adhesive with increased viscosity and a water-absorbing masking jig for quicker bonding.
Implementation Method 1
utilizing a water-soluble adhesive with increased viscosity and a water-absorbing masking jig for quicker bonding
Data Source
AI summary
A masking device capable of effectively carrying out a masking operation using a masking jig by means of a robot. A step S5, wherein the masking jig is taken out by a second robot, must be completed prior to step S6, and may be carried out until step S2 has been completed, otherwise, may be carried out concurrently with step S4. Since the taking out operation of the masking jig by the second robot may be concurrently with the detecting/taking-out operation of the workpiece or the applying operation of adhesive by the first robot, cycle time may be reduced.