Adjustable Abutment Positioning for Machine Tool Workpiece Support
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Solution Overview
Problem
Existing machine tools, such as mitre saws, face challenges in optimally supporting workpieces during machining, particularly when dealing with varying lengths, as the abutment bodies are not adjustable relative to the longitudinal axis, leading to suboptimal handling and support.
Innovation Solution
The abutment body in the machine tool is designed to be releasably fixed on the machine base in at least two different longitudinal positions relative to the longitudinal axis, allowing for adjustable support of workpieces of varying lengths, with the aid of a holding device that includes clamping means and positive engagement contours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the abutment body is fixed in a single longitudinal position, then the device structure is simple, but the workpiece support is suboptimal for varying lengths
Solution Approach 1:
The abutment body is made adjustable along the longitudinal axis through a holding device with clamping means and positive engagement contours, allowing it to be repositioned to different longitudinal positions depending on workpiece length requirements
Solution Approach 2:
The machine base is divided into functional zones with the abutment body positioned at specific longitudinal locations, allowing independent adjustment of support points to match different workpiece configurations
2Reliability
If two abutment bodies are provided in a longitudinal space, then the workpiece support is improved, but the device complexity increases
Solution Approach 1:
The holding device with clamping means and positive engagement contours serves multiple functions: it secures the abutment body, allows repositioning, and provides stable support for various workpiece configurations, replacing the need for multiple fixed abutment bodies
Data Source
AI summary
A machine tool for machining workpieces has a machine base for setting down on a ground surface. The machine tool further has a drive assembly arranged on the machine base with a drive motor and a tool receptacle drivable by the drive motor. The machine base has a support surface for supporting the workpiece and has at least one side contact body with a side contact surface. The side contact body is at an angle to the support surface and extends along a longitudinal axis. The machine tool further has at least one abutment body with an abutment surface, which is configured to be fixed opposite the support surface by a holding device on the machine tool, so that the workpiece is supported adjacent to the side contact surface sandwiched between the support surface and the abutment surface.