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Apparatus for circumference grinding of workpiece

A technology for processing devices and workpieces, which is applied in the field of peripheral processing devices for workpieces, can solve problems such as inability to be found, and achieve the effects of preventing detection errors, avoiding wasteful processing of unqualified products, and shortening processing time

Inactive Publication Date: 2014-10-01
NAKAMURATOME SEIMITSU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, since the workpiece that has completed the peripheral processing is inspected for defective products, even if defective blanks with notches or waves that cannot be removed during finishing are sent into the peripheral processing device, they cannot be found before finishing.

Method used

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  • Apparatus for circumference grinding of workpiece
  • Apparatus for circumference grinding of workpiece
  • Apparatus for circumference grinding of workpiece

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Embodiment Construction

[0052] Hereinafter, embodiments of the peripheral processing device of the present invention will be described with reference to the drawings. figure 1 It is a schematic side view of the peripheral processing apparatus which performs processing in polar coordinates.

[0053] In the figure, the main shaft 1 is a hollow shaft in the vertical direction, and is rotatably supported by a frame (not shown) via a bearing 11 . A table 12 is fixed to the upper end of the spindle 1, and a workpiece is measured and processed while being fixed to a horizontal upper surface 13 of the table. Negative pressure is supplied to the table 12 through the hollow hole of the main shaft 1, and the workpiece sent to the upper surface 13 of the table is fixed to the table 12 so that the lower surface is vacuum-adsorbed. A spindle motor (servo motor) 15 is connected to the lower end of the spindle 1 . The spindle motor 15 is connected to the controller 4 via a servo amplifier 41 , and controls the ro...

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Abstract

The invention provides an apparatus for circumference grinding of a workpiece, which is suitable for performing circumference grinding fine-machining on a glass plate. The apparatus can perform optimal circumference machining on a blank with a gap or crinkle on the circumference and has functions of: reducing cutting allowance of the workpiece, and realizing machining time shortening and workpiece wear reduction. Furthermore the apparatus can perform quality inspection on the blank. The apparatus performs continuous photographing on the whole circumference or a plurality of circumference areas of the blank which is fed to the apparatus, and detects the inner edge of the circumference of the workpiece according to an image. A correction operating unit operates a correction value according to a derivation (offset) between the circumference of the blank and a product in a product machining manner that the cutting allowance is unified in the whole circumference of the workpiece and the cutting allowance is minimized and defects of a gap or crinkle, etc. can be cut when the defect is detected on the circumference of the workpiece.

Description

technical field [0001] The present invention relates to an apparatus suitable for finishing the periphery of a plate-shaped workpiece, and in particular to an apparatus suitable for processing the periphery of glass plates such as glass substrates and cover glasses of display panels. Background technique [0002] The glass plate used for the display panel is cut into a blank shape (a shape in which a predetermined finishing allowance is added to the product shape) by water jet processing and sandblasting, and then finished into a product shape by a peripheral processing device . like Figure 5 As shown, the cutting surface t of the outer periphery of the glass plate cut by the water jet processing and the sandblasting processing is inclined. The interval d between the outer edge e and the inner edge f of the inclined cutting surface is 0.1 mm to 0.2 mm. And, on the outer periphery of the billet cut in this way, notches (chips) or waves may be generated. If the chipping or...

Claims

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Application Information

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IPC IPC(8): B28D5/02
CPCB24B9/10B24B49/04
Inventor 西村尚贡荒井智则
Owner NAKAMURATOME SEIMITSU IND
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