Design of mould for bend trunking in teaching industrial robot
The teaching industrial robot bend pipe trunking is in the shape of a straight pipe+bent pipe.The difficulty in mould design lies in the demoulding of the bent pipe section.The demould-ing of the outer wall of the plastic part was simplified to automatic demoulding and ejector pin methods.For demoulding of the inner wall,two core-pulling mechanisms driven by hydraulic cyl-inder were designed,respectively for the core-pulling of the straight pipe and for the core-pulling of the bent pipe.In the bent pipe core-pulling mechanism,the piston rod of the hydraulic cylinder pushed the slider to move linearly first,and then the slider driven the bent pipe arc slider through the tie rod to perform rotary core-pulling under the joint guidance of the swing lever and the arc pressure strip,which realized the rotary core-pulling demoulding of the inner wall of the bent pipe.
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