Adjustable Abutment Positioning for Crown Molding Saw Support
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Solution Overview
Problem
Existing machine tools lack optimal support mechanisms for workpieces, particularly in handling longer or shorter pieces, leading to suboptimal machining results due to fixed abutment body positions relative to the longitudinal axis.
Innovation Solution
The abutment body is made adjustable along the longitudinal axis, allowing for optimal positioning relative to both the workpiece and the working tool, with multiple longitudinal positions and the ability to be detachably fastened to the side contact body using a holding device with clamping and guide mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the abutment body is fixed in position with respect to the longitudinal axis of the side contact surface, then the structure is simple and stable, but the support for workpieces of varying lengths is suboptimal
Solution Approach 1:
The abutment body is made adjustable along the longitudinal axis of the side contact surface, transforming from a fixed static component to a dynamic one that can be repositioned. This allows the abutment body to adapt to different workpiece lengths by moving to optimal positions, resolving the contradiction between structural simplicity and adaptability.
Solution Approach 2:
The side support body is divided into separate functional components: the side contact surface with its longitudinal axis and the abutment body that can be independently adjusted. This segmentation allows the abutment body to be positioned separately along the longitudinal axis without affecting the overall structure, enabling adaptability while maintaining structural integrity.
2Manufacturing precision
If the abutment body is adjustable along the longitudinal axis, then the support precision for different workpiece lengths is improved, but the handling and positioning complexity increases
Solution Approach 1:
The abutment body is pre-positioned at optimal locations along the longitudinal axis for different workpiece lengths. Users can select and adjust to predetermined positions rather than making continuous adjustments, which simplifies the operation while maintaining high machining precision for various workpiece dimensions.
3Adaptability or versatility
If multiple abutment bodies are provided, then the support coverage is improved, but the device complexity and cost increase
Solution Approach 1:
The abutment body is designed as a multi-functional component that can serve different support functions at different positions along the longitudinal axis. By adjusting the position of this single versatile component rather than using multiple fixed components, the system achieves comprehensive support coverage while minimizing device complexity.
Data Source
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AI summary
The invention relates to a machine tool, in particular a semi-stationary or mobile machine tool (10) and/or sawing machine, for machining workpieces (W) using a work tool (36), in particular a cutting tool or a sawing tool, wherein the machine tool (10) has a machine base (11) provided for placement on a surface and a drive assembly (30) that is arranged on the machine base and comprises a drive motor (32) and a tool receptacle (31) for the work tool (36), in particular for a cutting tool, which tool receptacle can be driven by the drive motor (32), wherein the machine base (11) has a support surface (14, 17) for supporting the workpiece (W) and at least one lateral contact body (40, 41) having a lateral contact surface (42) that is at an angle, in particular at a right angle, to the support surface (14, 17) and extends along a longitudinal axis (L), and wherein the machine tool (10) has at least one abutment body (70, 170) having an abutment surface (79) that can be secured, using a holding device (60), to the machine tool (10) so as to be opposite the support surface (14, 17), such that the workpiece (W) is supported between the support surface (14, 17) and the abutment surface (79) so as to rest against the lateral contact surface (42) for being machined by the work tool (36), in particular in order to produce a crown molding cut. According to the invention, the abutment body (70, 170) can be releasably secured, by means of the holding device (60), to the machine base (11) in at least two different longitudinal positions (L1, L2) with respect to the longitudinal axis (L).