Dual-Seizing Machining Machine for Two-Sided Workpiece Transfer
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Solution Overview
Problem
Existing machines for machining oblong wood elements suffer from poor flexibility and structural complexity, limiting their versatility and efficiency.
Innovation Solution
A machine with parallel seizing units and movable seizing assemblies, allowing transfer of workpieces between different seizing units and operative heads for sequential machining of both sides, combined with a movable crosspiece for flexible and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional machining machines are used for oblong wood elements, then machining operations can be performed, but the flexibility of use is poor and structural complexity is high
Solution Approach 1:
The machine is divided into modular seizing units, each with independent seizing assemblies that can be positioned and operated separately. This segmentation allows the system to handle different workpiece sizes and machining requirements without requiring a completely different machine configuration, thereby improving flexibility while maintaining manageable complexity through standardized modules.
Solution Approach 2:
The machine employs multiple seizing assemblies that can seize workpieces at different positions and orientations, allowing a single machine to perform multiple machining operations on various types of oblong elements. The crosspiece with movable seizing units can accommodate different workpiece lengths and configurations, making the machine universally applicable to diverse machining tasks.
2Adaptability or versatility
If multiple seizing assemblies are used to improve flexibility, then workpiece transfer between assemblies is enabled, but the number of moving parts increases
Solution Approach 1:
Multiple seizing assemblies are integrated onto a single crosspiece structure that moves as one unit along the machining center line. This merging approach allows workpiece transfer between seizing assemblies without requiring independent movement mechanisms for each assembly, reducing the total number of moving parts while maintaining the flexibility to transfer workpieces between different seizing positions.
Solution Approach 2:
The seizing assemblies are designed with movable components that can dynamically adjust their positions along the crosspiece, allowing flexible workpiece transfer. The crosspiece itself can move along the machining center, providing dynamic repositioning capability. This dynamic design enables adaptability without requiring a fixed, complex arrangement of multiple independent mechanisms.
3Productivity
If sequential machining of both sides is implemented, then machining efficiency is improved, but the machining time for each side increases due to transfer operations
Solution Approach 1:
The machine enables continuous machining operations by maintaining workpiece clamping during crosspiece movement. The workpiece remains seized by the assemblies throughout the transfer and machining process, eliminating the need for unclamping and re-clamping operations. This continuity allows sequential machining of both sides without interruptive transfer operations, maintaining high productivity while minimizing time loss.
Solution Approach 2:
The workpiece is initially seized and positioned by the first seizing assembly before machining begins. This preliminary action establishes a stable clamping state that persists through the crosspiece movement and subsequent machining operations. By preparing the workpiece in advance with proper clamping, the system avoids time-consuming repositioning and re-clamping during the machining sequence.
Data Source
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AI summary
Described is a machine (1) for machining at least one workpiece where there are defined a first side (F1) and a second side (F2) which is opposite to said first side (F1), said machine (1) comprising: at least one first seizing unit (5) comprising a first seizing system (8a, 8b, 8c) and a second seizing system (9a, 9b, 9c) which are oriented parallelly to a first axis (X1) and faced to each other relative to a second axis (Y) which is orthogonal to said first axis (X1), said first seizing system (8a, 8b, 8c) comprising at least one first seizing assembly (8a) for seizing, in use, said at least one workpiece (P) at said second side (F2), said second seizing system (9a, 9b, 9c) comprising at least one second seizing assembly (9a) for seizing, in use, said at least one workpiece (P) at said first side (F1), wherein said at least one first seizing assembly (8a) is movable parallelly to said second axis (Y) relative to said at least one second seizing assembly (9a) or said at least one second seizing assembly (9a) is movable parallelly to said second axis (Y) relative to said at least one first seizing assembly (8a) such as to allow transferring said at least one workpiece (P) from said at least one first seizing assembly (8a) to said at least one second seizing assembly (9a) or from said at least one second seizing assembly (9a) to said at least one first seizing assembly (8a) when said at least one first seizing assembly (8a) and said at least one second seizing assembly (9a) are adjacently faced to each other; a crosspiece (15) which is placed above said first seizing unit (5), wherein said first seizing unit (5) is movable according to said first axis (X1) relative to said crosspiece (15) or said crosspiece (15) is movable according to said first axis (X1) relative to said first seizing unit (5); and operative means (16, 17) for executing at least one machining operation on said at least one workpiece (P), said operative means (16, 17) being movably connected with said crosspiece (15) such as to allow, in use, sequentially machining said first side (F1) and said second side (F2) of said at least one workpiece (P) by relative motion between said first seizing unit (5) and said crosspiece (15) and by transferring said at least one workpiece (P) from said at least one first seizing assembly (8a) to said at least one second seizing assembly (9a) or from said at least one second seizing assembly (9a) to said at least one first seizing assembly (8a).