Transparent Chuck Table Front-Back Image Alignment
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Solution Overview
Problem
The existing processing apparatuses face difficulties in displaying images of the front and back surfaces of a workpiece in a manner that allows operators to easily recognize their correspondence, leading to increased operator burden during operations like cutting and alignment, especially when imaging from the lower side of a chuck table.
Innovation Solution
A processing apparatus with a chuck table having a transparent material region and dual imaging units positioned above and below the chuck table, along with a control unit that processes images to invert them appropriately, ensuring correct orientation and display of the front and back surface images on a display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a second camera is disposed under the chuck table to image the front surface side, then the front surface side can be observed when the back surface side is held upward, but the displayed image is inverted relative to the back surface image, making it difficult for operators to recognize correspondence
Solution Approach 1:
The patent applies inversion by detecting the inverted orientation of the front surface image and deliberately inverting it back to match the back surface image orientation. The control unit inverts the front surface image in the vertical direction so that both images display in the same orientation, allowing operators to easily recognize correspondence between front and back surfaces without confusion from inverted displays.
2Device complexity
If images from both surfaces are displayed as acquired without processing, then the display is simple, but the operator burden increases due to difficulty in recognizing surface correspondence
Solution Approach 1:
The patent applies preliminary action by performing image orientation adjustment before display. The control unit detects the orientation of the front surface image and pre-processes it to match the back surface image orientation, so that when images are displayed, they are already in corresponding orientations, eliminating the need for operators to mentally adjust for inversion.
3Adaptability or versatility
If the chuck table is made transparent to visible light, then imaging from below is enabled, but additional imaging equipment and control processing are required
Solution Approach 1:
The patent applies universality by making the chuck table transparent to visible light, allowing it to serve dual purposes: holding the workpiece and permitting optical transmission for imaging from below. This multi-functional design eliminates the need for separate transparent holders, integrating the imaging transmission function directly into the chuck table structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration simplifies the recognition of surface correspondences, reducing operator burden by aligning and displaying images in a manner that mimics the view from the back surface to the front surface, facilitating accurate alignment and operation.
Implementation Method 1
a plate-shaped holding component having a predetermined region formed of a transparent material from the one surface to the other surface
Data Source
AI summary
A processing apparatus includes a chuck table including a plate-shaped holding component having a predetermined region transparent from one surface to the other surface, a processing unit that processes a workpiece, a first imaging unit disposed over the chuck table to acquire a normal image of the back surface side, and a second imaging unit disposed under the chuck table to acquire a normal image of the front surface side, a display device, and a control part that executes image processing of the normal image of either the back or front surface side to cause the normal image subjected to the image processing to be displayed on the display device in the state of being inverted in a predetermined direction in order to allow the orientation of the normal image of the back surface side to correspond with the orientation of the normal image of the front surface side.