JPS6224481Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotary blade tilting device suitable for forming grooves using a saw machine or a milling machine.

[Prior Art] Conventionally, when forming a groove in a workpiece using, for example, a circular saw blade, it has not been possible to form a groove that is wider than the width of the blade. In the case of a milling cutter, it is also called a grooved cutter and has a blade width corresponding to the width of the groove to be cut, but it is impossible to cut a groove of that width due to wear of the cutting edge.

[Problems to be Solved by the Invention] The problem to be solved by the invention is to make it possible to cut a somewhat wide groove with a thin blade.

[Means for solving the problem] Therefore, in the present invention, the groove is formed by tilting the rotary blade and causing the so-called "swinging". The location is always the same, and since only half of the cutting portion on both sides hits the material in areas other than both sides, the blade wears significantly in areas where both sides are removed. Therefore, this part is simply moved from time to time to prevent wear on this part only.

The means of the present invention is as follows: (a) A flange 4 is integrally protruded from the center of one of a pair of clamping plates 2 and 3 that are in contact with both sides of the rotary blade 1, and is inserted and held in the center hole 5 of the rotary blade 1. (b) clamping plates 9, 10 having contact surfaces 7, 8 inclined at an arbitrary angle with respect to the axis of the rotating shaft 6 are attached to the outside of both clamping plates 2, 3; A spherical flange 1 that fits into the rotating shaft 6 is provided at the center of the 9 and 10.
5 and 16 are integrally provided, and the outer spherical surface portion thereof is brought into contact with the inner surface of the holding plate flange 4.

[Embodiment] In the illustrated embodiment, 1 is a rotary blade, and a flange 4 is integrally provided at the center of one of a pair of clamping plates 2 and 3 which are in contact with both sides thereof. The flange 4 is inserted and held in the center hole 5 of the rotary blade 1, and furthermore, on the outside of both the clamping plates 2 and 3, there are clamps having contact surfaces 7 and 8 inclined at an arbitrary angle with respect to the axis of the rotary shaft 6. Pressure plates 9, 10
is attached. Reference numerals 15 and 16 are rotary blade tilting devices in which spherical flanges 15 and 16 are formed on pressure plates 9 and 10. 11 and 12 are fixed plates, 13 is a tightening nut, 14 is a spherical flange 15 of the pressure plates 9 and 10,
16 to each other.

[Effects of the invention] According to the invention, by loosening the nut and simply rotating the blade by hand, the position of the blade that cuts the groove can be moved, making it easy and quick to shift the parts that are subjected to severe use one by one. . In particular, in the present invention, spherical flanges 15 and 16 are formed on the clamping plates 9 and 10, and the spherical surfaces on the outer periphery contact the inner surface of the clamping plate flange 4, so that when the rotary blade 1 is tilted, the clamping plate flange 4 move along the spherical surface. Therefore, there is an effect that the rotary blade can be tilted smoothly.

[Brief explanation of the drawing]

The drawings show an embodiment of the rotary blade tilting device according to the present invention, with FIG. 1 being a longitudinal sectional front view and FIG. 2 being a longitudinal sectional side view. 1... Rotating blade, 2, 3... Holding plate, 4... Flange, 5... Center hole, 6... Rotating shaft, 7, 8...
Contact surface, 9, 10... pressure plate, 15, 16... spherical flange.

Claims (1)

[Claims for Utility Model Registration] A rotary blade tilting device consisting of a combination of the following three elements. (b) A pair of clamping plates 2 that touch both sides of the rotary blade 1,
A flange 4 is integrally protruded from the center of one side 2 of 3 and is inserted and held in the center hole 5 of the rotary blade 1. (b) Clamping plates 9 and 10 having contact surfaces 7 and 8 inclined at arbitrary angles with respect to the axis of the rotating shaft 6 are attached to the outside of both clamping plates 2 and 3. (c) Spherical flanges 15 and 16 that fit onto the rotating shaft 6 are integrally provided at the center of the clamping plates 9 and 10, and the outer spherical portions thereof are brought into contact with the inner surface of the clamping plate flange 4.