Mounting Head Holding Device Mechanical Engagement
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Solution Overview
Problem
The increased speed of component mounters results in larger inertial forces acting on mounting heads, causing insufficient holding force and potential slippage or detachment of mounting heads from the head holding section, leading to component pickup and mounting defects.
Innovation Solution
A component mounter mounting head holding device with a mechanically engaging mechanism using an L-shaped or J-shaped engaging member and an air cylinder to securely attach and detach the mounting head, enhancing holding power and preventing positional deviation or detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If negative air pressure is used to hold the mounting head, then the mounting head can be detachably attached to the head holding section, but the holding force becomes insufficient under high inertial forces causing slippage or detachment
Solution Approach 1:
The patent replaces the pneumatic holding system (negative air pressure) with a mechanical engagement system. The engaging member with hook shape mechanically interlocks with the member to be engaged on the mounting head, providing sufficient holding force to counteract high inertial forces during high-speed operation while maintaining detachability.
Solution Approach 2:
The holding mechanism is segmented into distinct components: the engaging member on the head holding section and the member to be engaged on the mounting head. This segmentation allows the mechanical engagement features to be independently designed and optimized for maximum holding force while preserving the ability to detach by separating these segments.
2Device complexity
If the mounting head holding device uses only negative pressure attachment, then the structure remains simple, but the mounting head may deviate positionally or fall off during operation
Solution Approach 1:
The patent introduces a mechanical engagement system where the engaging member hooks onto the member to be engaged, replacing the insufficient pneumatic attachment. This mechanical interlocking provides reliable holding that prevents positional deviation and detachment during high-speed operation, accepting increased structural complexity as necessary for achieving the required reliability.
3Force
If mechanical engagement is added to the head holding section, then the holding power increases, but the device complexity increases
Solution Approach 1:
The patent implements a mechanical engagement system where the engaging member with hook shape mechanically interlocks with the member to be engaged on the mounting head, providing sufficient holding force to counteract high inertial forces during high-speed operation while maintaining detachability.
Solution Approach 2:
The engaging member is designed to automatically engage with the member to be engaged when the mounting head is attached to the head holding section. The spring member provides automatic engagement force, and the hook shape ensures proper alignment and interlocking without requiring additional adjustment mechanisms, reducing the overall complexity despite adding mechanical engagement capability.
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 mechanical engagement system provides increased holding power, preventing mounting head slippage and detachment, ensuring stable operation and reducing defects during component mounting.
Implementation Method 1
an air cylinder provided on the head holding section which is the power source for moving the engaging member between the engagement position and the release position
Implementation Method 2
a member to be engaged provided on the connecting section for the head holding section of the mounting head; an engaging member provided on the head holding section which moves between an engagement position for holding the mounting head in which the engaging member is engaged with the member to be engaged
Data Source
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AI summary
A component mounter mounting head holding device for detachably holding a mounting head 12 to a head holding section 11 of a component mounter comprising: pin to be engaged 17 provided on connection section 15 for head holding section 11 of mounting head 12; engaging member 13 provided on head holding section 11 which moves between an engagement position for holding mounting head 12 in which engaging member 13 is engaged with pin to be engaged 17 and a release position in which engaging member 13 is separated from the pin to be engaged 17; and air cylinder 18 provided on head holding section 11 which is the power source for moving engaging member 13 between the engagement position and the release position. When attaching/detaching mounting head 12 to/from head holding section 11, head holding section 11 is rotated to a position in which engaging member 13 can pass by the side of pin to be engaged 17.