Bevel Sawing Machine with Movable Vice for Precise Angle Cuts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sawing machines for bevel cuts in metal workpieces face challenges in achieving precise cuts with minimal residual pieces, particularly at negative bevel angles, due to non-symmetrical clamping forces and the need for adjustable band guides, which can lead to inaccurate cuts and increased residual material.
Innovation Solution
The sawing machine incorporates a movable clamping vice integrated with a sawing table that can adjust in the supply direction, allowing for symmetrical clamping and precise positioning of the workpiece, along with motorized band guides that adjust based on the bevel angle to maintain optimal cutting width, and includes pivotable cutting bars to support the workpiece at both sides of the cutting plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fixed clamping jaw is widened to cover the displacement path of the movable clamping jaw for symmetrical clamping during bevel cuts, then symmetrical clamping force is ensured, but residual pieces of material are unnecessarily left over during straight cuts
Solution Approach 1:
The clamping vice is made movable in the supply direction, allowing its position to be dynamically adjusted between a first position for bevel cuts (enabling symmetrical clamping) and a second position for straight cuts (enabling complete material removal). This dynamic repositioning resolves the contradiction by adapting the clamping system's configuration to the specific cutting operation being performed.
2Adaptability or versatility
If the clamping vice is arranged further away from the sawing plane to release the pivot range of the bevel saw, then the pivot range is freed, but dimensional accuracy of cuts deteriorates due to resilient movability of metal workpieces
Solution Approach 1:
The clamping vice can be dynamically repositioned in the supply direction. During bevel cuts, it is positioned at a first location that frees the pivot range, while during straight cuts, it is positioned at a second location closer to the sawing plane that ensures dimensional accuracy by clamping the workpiece as close as possible to the cutting plane.
3Adaptability or versatility
If only the movable clamping jaw is removed from the pivot range to free the pivot range, then the pivot range is released, but non-symmetrical clamping force is produced with corresponding torques and thrust forces
Solution Approach 1:
The entire clamping vice assembly (including both fixed and movable clamping jaws) is made movable in the supply direction. This allows the entire clamping system to be repositioned to free the pivot range during bevel cuts while maintaining the symmetrical arrangement of both clamping jaws relative to each other, thus preserving clamping symmetry while enabling full pivot range.
Data Source
AI summary
A sawing machine for bevel cuts having an upper saw portion with two running wheels, one of which is motor driven, a saw band which rotates about the running wheels, a lifting and lowering device for the upward and downward movement of the upper saw portion to move the saw band with a sawing advance movement in a sawing region, a transport path for supplying a workpiece in a supply direction to the sawing region, a frame, on which the upper saw portion is retained and which is pivotable about a vertical axis in order to adjust a bevel angle between the saw band and the supply direction. A movable sawing table is arranged in the sawing region for positioning the workpiece to be sawn and a clamping vice for clamping the workpiece during the sawing operation. The sawing table and the clamping vice are constructed to be movable in and counter to the supply direction.