Clamp Device Spring Mounting via Pressing Bolt
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Solution Overview
Problem
Conventional clamp devices require a powerful return spring for immediate return-drive, necessitating a special tool for assembling and maintenance, which is time-consuming and labor-intensive.
Innovation Solution
A clamp device design featuring a cylinder hole and piston extending straight, with a through hole for a return spring mounted via a female screw hole, allowing easy compression and decompression of the spring using a pressing bolt, eliminating the need for a special tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a powerful return spring is used to immediately return-drive the clamp arm, then the return speed and reliability are improved, but the difficulty of assembly and maintenance increases due to requiring special tools
Solution Approach 1:
The spring mounting structure is segmented into separate components: the spring itself, the pressing bolt, and the spring receiving portion with female screw hole. This allows the spring to be installed or removed by simply tightening or loosening the pressing bolt, eliminating the need for special tools while maintaining the reliability of a powerful spring
Solution Approach 2:
The pressing bolt acts as an intermediary mechanism between the operator and the return spring. By rotating the pressing bolt, the operator can compress or release the spring without directly handling the powerful spring ends, making assembly and maintenance simple while still allowing a powerful spring to be used
2Force
If a powerful return spring is used to immediately return-drive the clamp arm, then the return force is improved, but the time and labor required for assembly and maintenance increase
Solution Approach 1:
The spring mounting structure is segmented into separate components: the spring itself, the pressing bolt, and the spring receiving portion with female screw hole. This allows the spring to be installed or removed by simply tightening or loosening the pressing bolt, eliminating the need for special tools while maintaining the reliability of a powerful spring
Solution Approach 2:
The pressing bolt mechanism allows operators to service the return spring themselves without requiring specialized tools or expertise. By simply rotating the pressing bolt, the spring can be compressed or released, enabling quick assembly and maintenance that reduces time loss
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
Enables efficient assembly and disassembly of the return spring, reducing labor and time required for maintenance, while allowing the use of a powerful spring without needing a special tool.
Implementation Method 1
the output portion of the clamp arm is pressed up by a biasing force of the return spring
Implementation Method 2
a pressure fluid is supplied into a working chamber located at the lower side of the piston. Accordingly, the input portion of the clamp arm is pressed up by the piston
Data Source
AI summary
An output part is provided to the left end of a clamp arm that is supported by a housing so as to be slidable in the vertical direction. At the left end of the housing, a first hole for spring fitting opens obliquely upward towards the output part. A through hole that links the upper surface and the lower surface of the clamp arm is disposed obliquely upward at a left-leaning part of the clamp arm. A second hole for spring fitting and a female screw hole are formed, in that order, upwards in the through hole. A return spring that is installed through the first hole and the second hole impels the output part upwards. A push bolt that is screwed into the female screw hole rom above compresses the return spring.