JP2000263320A - Cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a vibration and a noise transmitted to a whole product at the time of cutting by providing a shock absorber to a fence surface supporting an upper surface of a base portion on which a material to be processed is placed and the material to be processed. SOLUTION: In the case where a material to be processed is cut with an angle in a horizontal direction against a fence 3, a grip 4 is loosed and a turn table 2 is turned. An angle of the fence 3 and a table 2 is turned. An angle of the fence 3 and a cutting blade 6 is adjusted to a predetermined position and a grip 4 is tightened to fix a position of the table 2. A cutting work is the same as the case of a right angle cutting. At the time of the cutting, a material to be processed 15 is continuously cut by a tip end of the cutting blade 6 formed with a cutting blade at a predetermined pitch and an elastic deformation of the material to be processed 15 occurring by a cutting reflection force at this time is relaxed by a rubber sheet 12. When the elastic deformation is returned to an original state, since a vibration and a noise generated by hitting the base portion 11 and the fence 3 hit the rubber sheet the impact is absorbed and a vibration and a noise are reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine for reducing vibration and noise transmitted to the entire cutting machine during cutting.

[0002]

2. Description of the Related Art As a conventional cutting machine, a metal fence for supporting a processing material is provided on an upper surface of a metal base on which the processing material is placed, and a cutting blade body having a cutting blade above the base is vertically swingable. It is pivoted. The work material is cut by pushing down the cutting blade body. The cutting blades are usually provided with cutting blades at a predetermined pitch except for a cutting grindstone, and are intermittently cut at the time of cutting.

[0003]

During the cutting, a cutting reaction force is repeatedly applied to the work material due to the intermittent cutting, so that vibration occurs in each component mainly when the metal is cut as the work material. In particular, when a thin work material is cut, the work material is elastically deformed by the cutting reaction force and repeatedly returns to the original state, and each time the work material hits the fence or the base, causing severe vibration. This vibration has caused the entire cutting machine to move, the joint of the entire cutting machine to be loosened, and the operating handle to vibrate to adversely affect the operator. Furthermore, noise was generated when the processed material hit the fence or base.

An object of the present invention is to solve the above-mentioned conventional problems and to reduce the vibration and noise of a work material as much as possible.

[0005]

The above object is achieved by providing a buffer on the upper surface of the base and on the fence surface.

[0006]

1 and 2 show an embodiment of the present invention.
This will be described below. 1 is a left side view of the cutting machine, and FIG.
FIG.

In the figure, a turntable 2 is embedded in the center of a base 1 so as to be rotatable in a horizontal direction, and the upper surface of the turntable 2 is flush with the upper surface of the base 1. A workpiece 15 is placed on the upper surfaces of the base 1 and the turntable 2. In the present invention, the members (the base 1 and the turntable 2 in this embodiment) on which the workpiece 15 is placed are collectively referred to as a base portion 11. A fence 3 for supporting a side surface of the workpiece 15 is fixed to the upper surface of the base 1. The grip 4 is screw-fitted to the side surface of the turntable 2, and the side surface of the base 1 is pressed by turning the grip 4, thereby restricting the rotation of the turntable 4. The side surface of the base 1 is provided with a vice device 5 for fixing the workpiece 15. A holder 9 is provided upright at the rear end of the turntable 2, and a cutting blade body 10 is pivotally supported on a top of the holder 9 via a shaft 13 so as to be vertically swingable with respect to an upper surface of a base portion 11. Between the holder 9 and the cutting blade body 10, there is a cutting blade body 10
Is provided. The cutting blade body 10 includes a motor 7 for moving the cutting blade 6 and a handle 8 for pushing down the cutting blade body 10.

A rubber sheet 12 serving as a buffer is provided on a work material mounting surface 11a on the base portion 11 and a work material support surface 3a of the fence 3.

In the above configuration, when the work material 15 is cut at right angles to the fence 3, the work material 1 is cut in the state shown in FIG.
5 is pressed against the surface of the fence 3 and fixed by the vise device 5, and the cutting blade main body 10 is pushed down by the operation handle 8 to perform right angle cutting.

Next, when cutting the fence 3 at an angle in the horizontal direction, the grip 4 is loosened, the turntable 2 is rotated, and the angle between the fence 3 and the cutting blade 6 is adjusted to a predetermined position to grip. 4 to fix the position of the turntable 2. The cutting operation is the same as in the case of the right angle cutting.

At the time of cutting, the workpiece 15 is intermittently cut by the tip of the cutting blade 6 having a cutting blade at a predetermined pitch, and the rubber sheet 12 relieves elastic deformation of the workpiece 15 caused by the cutting reaction force at this time. When the elastic deformation returns to its original state, the vibration and noise generated by hitting the base portion 11 and the fence 3 hit the rubber sheet 12, so that the shock is absorbed and the vibration and noise are reduced.

Although the present embodiment has been described with reference to a cutting machine that swings a circular saw, it is also applicable to a cutting machine such as a band saw.

[0013]

According to the present invention, the shock absorber provided on the upper surface of the base portion on which the work material is placed and the fence surface supporting the work material reduces vibration and noise transmitted to the entire product at the time of cutting. Can be.

[Brief description of the drawings]

FIG. 1 is a left side view of a cutting machine showing an embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

[Explanation of symbols]

1: Base, 2: Turntable, 3: Fence, 3a
... working material support surface, 10 ... cutting knife body, 11 ... base portion, 11a ... working material mounting surface, 12 ... rubber sheet (buffer), 15 ... working material.

Claims (1)

[Claims] 1. A cutting machine provided with a fence for supporting a work material on an upper surface of a base portion on which the work material is placed and a cutting blade body having a cutting blade above the base portion. A cutting machine characterized by providing a buffer on the fence surface.