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Substrate end-face grinder and grind judgment method

A grinding device and end face technology, which is applied in the direction of automatic control devices, grinding machines, grinding machine parts, etc., can solve the problem of no reflection of the depth of the grinding wheel groove, and achieve the effects of improving life, improving production performance, and reducing the number of stops

Active Publication Date: 2014-07-16
NAKAMURATOME SEIMITSU IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Patent Documents 1 and 2 disclose the technology of adjusting the cut-in speed according to the electric power value of the grinding stone drive motor, and Patent Document 3 discloses the technology of calculating the average value of the machining load of the final disk to correct the cut-in amount. The depth of grooves formed in the grinding wheel is reflected in the amount of cut

Method used

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  • Substrate end-face grinder and grind judgment method
  • Substrate end-face grinder and grind judgment method
  • Substrate end-face grinder and grind judgment method

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Embodiment Construction

[0045] The embodiments of the present invention will be described below based on the drawings.

[0046] Figure 4 A perspective view showing the appearance of the polishing device according to the present invention, Figure 5 Indicates the part of the grinding mechanism.

[0047] Image 6 It shows a state in which the cover 14 of the grinding wheel is removed and a cross-sectional view along the line A-A.

[0048] The grinding wheel 10 is detachably attached to the shaft 22, and is controlled by a rotation drive motor (rotation drive assembly) 20 of the grinding wheel.

[0049] The grinding wheel 10 is connected to a servo motor 30 as a cutting-in and sending-out assembly together with the rotation drive motor 20.

[0050] Such as Figure 4 As shown, in this embodiment, a pair of rotary drive motors 20a, 20b are provided, which are controlled by the positions of (X axis, Z axis), (U axis, W axis), so that they can perform simultaneous operations on both sides of the glass substrate. G...

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Abstract

The object of the invention is to provide a substrate end-face grinder having a high reliability and adaptive control, capable of introducing correcting elements to the abrasion groove depth of a grinding wheel, and a method for judging whether the grind of the substrate end-face is well or not. The substrate end-face grinder is characterized in that it comprises a grinding wheel for grinding the substrate end-face, a rotary drive component of the grinding wheel and a feeding component of the grinding wheel; the rotary drive component of the grinding wheel comprises a load current detection component using substrate end-face contact, and a correcting component for generating the load current by contacting the side face of the abrasion groove generated by the grinding wheel to the substrate.

Description

Technical field [0001] The present invention relates to a polishing device for polishing the end surface of a glass substrate such as a liquid crystal substrate, and a judging method for judging whether the polishing finish is good. Background technique [0002] In glass substrates used in liquid crystal substrates, etc., there are microscopic irregularities and cracks on the cut end surface. Therefore, in order to suppress the generation of dust and improve the end surface by finishing the end surface other than the chamfering of the ridge line portion into a mirror surface For the purpose of strength, polishing is performed. [0003] A grinding wheel used to grind the end surface of a hard and brittle material such as a glass substrate into a mirror surface. It uses diamond abrasive grains, silicon carbide abrasive grains, CBN (cubic boron nitride) abrasive grains, or cerium oxide abrasive grains, but to prevent For micro cracks and scratches on the polishing surface, a polishin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B7/16B24B7/24B24B49/10
CPCB23Q15/12B24B9/10B24B49/16
Inventor 辰田胜彦山岸宗司猪饲修松冈豊伊势广教
Owner NAKAMURATOME SEIMITSU IND