Microtome Cutter Holder with Screwless Eccentric Clamping
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Solution Overview
Problem
Existing cutter holders for microtomes require time-consuming screw adjustments for mounting and replacing the pressing plate, and regulating clamping force, which affects efficiency and convenience.
Innovation Solution
A cutter holder design featuring a pivotably mounted pressing plate with an eccentric shaft and sliding assembly, allowing easy mounting and replacement of the pressing plate, and regulation of clamping force through eccentric shaft rotation without multiple screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple screws are used for mounting the pressing plate and regulating clamping force, then the clamping mechanism can be securely assembled and adjusted, but the mounting and replacement process becomes time-consuming and operationally complex
Solution Approach 1:
The invention extracts and eliminates the screws from the clamping mechanism, replacing them with a screwless design where the pressing plate is directly mounted on the base through a pivot connection. This removes the time-consuming screw assembly and disassembly operations while maintaining secure clamping through the eccentric shaft mechanism.
Solution Approach 2:
The invention introduces dynamic elements including a pivotable pressing plate that can rotate about a pivot shaft, and an eccentric shaft that converts rotational motion into linear clamping motion. This dynamic design enables quick mounting and replacement without screws, while the eccentric mechanism provides reliable clamping force regulation through simple rotational adjustment.
2Reliability
If multiple screws are used for mounting and clamping force regulation, then the structure can be securely assembled, but the device complexity and number of components increase
Solution Approach 1:
The invention removes multiple screws and adjustment components from the system, replacing them with a simplified screwless mounting structure. The pressing plate is secured through a pivot connection and eccentric shaft mechanism, eliminating the need for multiple fastening screws while maintaining assembly security.
Solution Approach 2:
The eccentric shaft serves multiple functions simultaneously: it acts as a mounting connection, provides clamping force regulation, and enables quick release. This multi-functional design replaces what would otherwise require multiple separate components (mounting screws, adjustment screws, spring mechanisms), thereby reducing overall device complexity.
3Reliability
If multiple screws require operation for mounting and clamping force regulation, then the clamping mechanism can be assembled and adjusted, but the working efficiency decreases
Solution Approach 1:
The invention employs dynamic mechanisms including a pivotable pressing plate and an eccentric shaft that converts simple rotational motion into effective clamping action. This allows the operator to quickly mount and adjust the clamping force by merely rotating the eccentric shaft, dramatically improving working efficiency compared to manually assembling and adjusting multiple screws.
Solution Approach 2:
The spring-loaded pressing plate automatically engages with the cutter when the eccentric shaft is rotated into the clamping position, eliminating the need for manual adjustment of multiple screws. The mechanism self-regulates the clamping force through the spring load, improving operational speed and efficiency while maintaining reliable clamping functionality.
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
Enhances working efficiency and reliability by simplifying the mounting and replacement process of the pressing plate and enabling clamping force adjustment with a single eccentric shaft operation.
Implementation Method 1
an eccentric shaft rotatably mounted in the base; and a sliding assembly slidably mounted in the base. The sliding assembly is arranged between the pressing plate and the eccentric shaft and in contact with the eccentric shaft, and the sliding assembly is movable towards the pressing plate when the eccentric shaft rotates
Data Source
AI summary
The present disclosure relates to a cutter holder for a microtome. The cutter holder includes: a base; a pressing plate pivotably mounted to the base and having a first end configured to clamp the cutter; an eccentric shaft rotatably mounted in the base; and a sliding assembly slidably mounted in the base. The sliding assembly is arranged between the pressing plate and the eccentric shaft and is in contact with the eccentric shaft, and the sliding assembly is movable towards the pressing plate when the eccentric shaft rotates, so as to force the first end of the pressing plate to clamp the cutter with the base. The cutter holder according to embodiments of the present disclosure allows easy mounting and replacement of the pressing plate, facilitates clamping of the cutter and regulation of a clamping force, and has high working efficiency and high reliability.