Cutter holder mounting structure and cutter holder joint

Abstract

The present invention provides a cutter holder mounting structure capable of preventing a cutter holder from being obliquely displaced at the initial stage of scribing and capable of accurately forming a scribe line. The revolving shaft (8) of the cutter holder mounting structure (1) having a cutter wheel (6) at the lower end is rotatably mounted on the scribing head (9) of a scribing device (A) via a ball bearing (10). The outer ring (10b) of the ball bearing (10) is mounted on the scribing head (9) or a portion connected to the scribing head (9), and the inner rings (10a, 11a) of the ball bearings (10, 11) are mounted on the revolving shaft (8). A magnet (18) that always sucks and lifts the revolving shaft (8) and the inner rings upward together is disposed above the revolving shaft (8),thereby suppressing the looseness of the cutter holder mounting structure (1) caused by the internal clearance (L2) of the ball bearing (10).

Description

technical field [0001] The present invention relates to a tool holder mounting structure and a tool holder joint for installing a tool holder holding a cutter wheel (also called a scribing wheel) on a scribing head of a scribing device. Used for scribe line (grooving) for surface machining and cutting. Background technique [0002] In the past, in the process of cutting a brittle material substrate such as a glass substrate, the following method is generally known: a cutter wheel is pressed against the surface of the substrate to form a plurality of scribe lines in the X-Y direction orthogonal to each other, and then, along the scribe line The wire applies an external force from the back side to bend the substrate, thereby cutting the unit substrate. For example, Patent Document 1 discloses such a method. [0003] The cutter wheel is mounted to the scribing head of the scribing device via a tool holder for use. Figure 5 ~ Figure 7 The existing tool holder and the installat...

AI Technical Summary

Problems solved by technology

In this way, when the cutter wheel deviates obliquely at the initial stage of scribing, in the subsequent driving, even if it returns to straight driving due to the caster effect, it will still be as smooth as possible. Figure 8 As shown in the figure, the scribed line S3 deviated by the distance Z from the predetermined planned scribing line S is formed, and a high-precision and high-quality product cannot be obtained.

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