JPS5946740B2 - Grinding wheel correction method and equipment in grinding process - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for correcting a grindstone during grinding.

Recently, machines that control the grinding force have been developed in the field of grinding, and efforts are being made to maximize the performance of the grindstone.

However, Kanjin's control during towing and dressing is extremely rough. That is, in the case of conventional A-type and C-type grindstones, only a diamond dresser was used to cut by a predetermined amount based on the grain size, degree of bonding, etc. However, in the case of Porazon whetstones or diamond whetstones, which have attracted attention in recent years, the whetstone base is made of metal.
It has extremely high rigidity, making it nearly impossible to forcefully cut and dress it as in the past. The present invention was developed focusing on the above-mentioned conventional problems, and the structure of the present invention will be described below with reference to the embodiment shown in FIGS. 1 and 2. First, the objectives of this invention can be summarized into the following three points.

In other words, (in order to perform dovetailing and dressing at a constant pressure, use a slide bearing, a spring, a buffering means such as air, etc., so that a constant pressure is always applied to the diamond part, and (2) nib diamond. (3) Secondarily, the point of circumferential speed o is created at the center of rotation of the nib diamond, and the setting is made to improve the sharpness of the whetstone.Hereinafter, the present invention will be explained. The configuration of a specific device for dressing A-type and C-type grindstones is as follows.In the drawing, 1 is a nib diamond, 2 is a shaft that supports the nib diamond so that it can slide and rotate; The dresser is changed as appropriate depending on the grindstone to be dressed. For example, a GC grindstone can be attached to a Porazon grindstone.

3 is a housing case, 4 is a slide bearing, 5 is a thrust bearing, and 6 is a buffer means such as a spring or air.

A force of several hundred grams is applied to the nib diamond 1 in the axial direction during towing and dressing. If you check the abrasive crushing conditions, the force required to grind the binder, etc. in advance to determine the force that will give you the best sharpness, and then set it using a spring or air 6, when a force exceeding the set value is applied to the nib diamond 1, the diamond 1
Try to quickly reduce the amount of touring dressing and keep it constant. The most notable effect is that as Porazon whetstones are put into practical use in the future, they will be ideal for restoring surface roughness and for applying a small amount of touring and dressing as a countermeasure against excessive dressing. The operation of this device is such that when an axial force is applied to the nib diamond 1, the shaft 2 attempts to escape from the pole slide bearing 4VC in the axial direction against a spring or air force. On the other hand, nib diamond 1
rotates according to the rotational force of the grindstone 7, eliminates the center difference between the core of the grindstone 7 and the core of the diamond 1, and produces a sharp grindstone as if it were a single diamond at the center of rotation. Incidentally, in order to control the rotational force and rotational speed of the nib diamond 1, a drive type dressing device shown in FIG. 2 may also be considered. This also solves the problem of drive and axial movement in the spline section 8. 9 is a motor.

Furthermore, for reference, the difference between a nib diamond dresser and a rotary diamond dresser is as shown in FIG. The diamond dresser 13 has no diamond in the center, but diamonds 14 are arranged near the outer periphery. As explained above, in order to keep the pressure constant during touring and dressing during grinding, the present invention supports the nib diamond dresser through a buffering means such as a spring or air. Correcting the grinding wheel during grinding by rotating it directly or indirectly to prevent the occurrence of center discrepancies, and also by creating a point of zero circumferential speed at the center of rotation of the nib diamond dresser to improve the sharpness of the grinding wheel. The specific structure of this method is to support a nib diamond dresser slidably and rotatably within a hole of a housing case with its center line as an axis through a slide bearing and a thrust bearing, and the rear part of the dresser is supported by a spring, air, etc. This relates to a device configured to apply pressure using a buffering means.

That is, the pressure during touring and dressing during the correction of the grindstone can be easily and reliably kept constant. Furthermore, by rotating the nib diamond attached to the tip (driven type or driven type), the problem of center difference due to misalignment between the center of the grindstone and the diamond is eliminated. Moreover, at the center of the nib diamond, the rotational circumferential speed is 0, and retrieval dressing can be performed reliably.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a driven type grindstone correction device according to the present invention. FIG. 2 is a drawing showing a drive type grindstone correction device according to the present invention. FIG. 3 is a drawing for explaining the difference between a nib diamond dresser and a rotary diamond dresser. 1...Nib diamond, 2.
...Axis, 3...Housing case, 4.
...Slide bearing, 5...Thrust bearing, 6...Buffering means such as spring, air, etc., 7...
・Whetstone.

Claims (1)

[Claims] 1. In order to keep the pressure constant during touring and dressing during grinding, the dresser is supported via a buffering means such as a spring or air, and the dresser is actively or passively rotated. A method for correcting a grinding wheel in grinding processing, which is characterized by preventing the occurrence of center discrepancies and improving the sharpness of the grinding wheel. 2. The dresser is configured to be slidably and rotatably supported within the hole of the housing case with its center line as the axis via a slide bearing and a thrust bearing, and the rear portion thereof is compressed by a buffering means such as a spring or air. A grinding wheel correction device for grinding.