Movable Carriage Drilling Machine for Scratch-Free Board Processing
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Solution Overview
Problem
Existing machines for machining plate-shaped workpieces, such as those used in the furniture industry, often cause scratches or abrasions due to the need to move the workpiece for drilling, which is undesirable for finished furniture pieces.
Innovation Solution
A machine with a linearly displaceable carriage equipped with a positioning device featuring a rotatable, multi-sided positioning bar and actuating elements allows for quick and precise movement of the carriage along the positioning strip, enabling efficient drilling of long rows of holes without requiring the workpiece to be moved, thus minimizing surface damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the machine is stationary and the workpiece is moved on the support table to reach different drilling positions, then the drilling operations can be performed, but scratches or abrasion marks appear on the workpiece surface
Solution Approach 1:
Instead of moving the workpiece on the support table to reach different drilling positions, the invention inverts the approach by making the carriage with the drilling tool movable along the positioning strip. The workpiece remains stationary on the support table, and the tool moves to different positions to perform drilling operations, thereby avoiding surface scratches on the workpiece.
Solution Approach 2:
The invention introduces a carriage as an intermediary carrier that moves along the positioning strip. This carriage carries the drilling tool and positioning elements, serving as a mediator between the stationary machine structure and the workpiece. The carriage's movement along the positioning strip enables different drilling positions to be accessed without moving the workpiece itself, thus preventing surface damage.
2Productivity
If a positioning device with multiple positioning elements is used to enable rapid carriage movement, then the drilling speed increases, but the device complexity increases
Solution Approach 1:
The positioning device is segmented into multiple independent positioning elements (first, second, and third positioning elements) that can be independently engaged with corresponding positioning elements on the positioning strip. This segmentation allows the carriage to be positioned at different locations along the strip by engaging different positioning elements, enabling rapid movement and drilling operations without requiring a complex monolithic positioning mechanism.
Solution Approach 2:
The positioning elements are designed to be disengageable and reengageable, allowing the carriage to dynamically move along the positioning strip by engaging different positioning elements as needed. This dynamic capability enables the carriage to be quickly repositioned for different drilling operations, increasing productivity while maintaining a relatively simple device structure through modular, movable components.
Data Source
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AI summary
The machine (1) has a set of positioning elements (11) and another positioning element, where the set of positioning elements (11) and a third positioning element are formed complementary to each other so that the elements are engaged with each other. The set of elements (11) is arranged at a positioning rail (10), and the latter and third elements are arranged at a carriage (4). An actuator is connected with the third element, and a relative position of the third element is changed relative to the carriage in a movement direction (A) of the carriage.