JPH11156633A - Method for machining blade clearance groove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a blade clearance groove corresponding to the thickness of a blade by advancing the blade into a fixed holding part and the area of a slider table main body partitioned by the fixed holding part and a movable holding part and cutting the blade. SOLUTION: A slider table is moved, and the fixed holding part 15 of a slider table main body 14 is cut by a blade 12 to be penetrated. Thus, a blade clearance groove 23 as a cut having a width equal to the thickness of the blade 12 is formed in the fixed holding part 15. Then, the slider table 11 is moved more, and a blade clearance groove 24 having a width equal to the thickness of the blade 12 is formed in the longitudinal direction in the slider table main body 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table-top type cutting device, and more particularly, to a blade escape groove provided in the slider table in order to prevent interference between a slider table holding a workpiece and a cutting blade. The method relates to a processing method.

[0002]

2. Description of the Related Art As a tabletop type cutting device, for example, a cutting device 30 shown in FIG. 5 is known. This cutting device 3
Reference numeral 0 generally comprises a slider table 32 on which the workpiece 31 is placed and held, and a blade 33 for cutting the workpiece 31 held by the slider table 32. Slider table body 35 slidable on 34
A fixed holding portion 36 erected on the slider table body 35 and fixed; a movable holding portion 37 for moving on the slider table body 35 and holding the workpiece 31 between the fixed holding portion 36; A feed screw 39 provided with a handle 38 at the tip to press and move the movable holding portion 37;
Feed screw support 4 which is screwed to feed screw 39 and is erected.
0.

[0006] As shown in FIG.
6 and the movable holding portion 37 are provided with blade relief grooves 41 and 42 for preventing interference with the blade 33 when the slider table 35 moves in the L direction. Furthermore,
The slider table body 35 is provided with a blade escape groove 43 for preventing interference with the blade 33 and a slide groove 44 for guiding the movement of the movable holding portion 37. The blade escape grooves 41, 42, 43
In order to completely avoid interference with the blade 33, the blade 33 is formed to have a width sufficiently larger than the thickness of the blade 33.

[0004] When the columnar workpiece 31 is sliced by using the cutting apparatus 30 having the above-described configuration, for example, as shown in FIG. The movable holding portion 37 is fixedly held by rotating the handle 38 in a predetermined direction and screwing the ball screw 39 after placing the movable holding portion 37 on the fixed holding portion 36 by contacting a part of the outer peripheral surface thereof with the fixed holding portion 36. The workpiece 31 is held between the fixed holding section 36 and the movable holding section 37 by sliding in the direction approaching the section 36.

As described above, when the workpiece 31 is held by the fixed holding portion 36 and the movable holding portion 37 and is fixed on the slider table main body 35, the slider table 32 moves in the direction approaching the blade 33, The blade escape groove 41 provided in the fixed holding portion 36 is
Passes, and the blade 33 relatively moves along the blade escape groove 43 provided in the slider table main body 35.
Cut and sliced.

[0006]

The slider table body 35, the fixed holding section 36, and the movable holding section 37 are manufactured individually, and the blade escape grooves 41, 42, 43 are also formed individually. The blade escape grooves 41, 42, 43 are formed so as to allow a slight play between the blade 33 and the blade 33 in consideration of the possibility that an error may occur at the time of assembling the steps.

Therefore, in the cutting device 30 after the assembly, a slight gap may be generated between the blade 33 and the side wall of the blade escape groove 43. When such a gap occurs,
When the workpiece is cut thin, if the gap is larger than the thickness of the workpiece after cutting, there is an adverse effect that the workpiece after cutting falls from the gap.

As described above, in the conventional cutting device,
An object is to prevent the workpiece after cutting from dropping from the gap between the blade and the side wall of the blade escape groove.

[0009]

As a specific means for solving the above-mentioned problems, the present invention provides a slider table for holding a workpiece and a blade for cutting the workpiece held on the slider table. In the cutting device configured, in order to avoid interference with the blade at the time of cutting the workpiece by moving the slider table by the action of the blade, a method of processing a blade relief groove formed in advance in the slider table. The slider table comprises a slider table body, a fixed holding section and a movable holding section disposed on the slider table body to hold the workpiece, and at least a blade escape groove formed in the fixed holding section. And a blade relief formed in the area of the slider table body separated by the fixed holding portion and the movable holding portion. The groove is formed by moving the slider table in the direction of the blade, cutting the blade into and out of the fixed holding portion and the area of the slider table body separated by the fixed holding portion and the movable holding portion. The present invention provides a method for processing a blade relief groove.

The blade is a circular blade,
An additional requirement is to form a blade clearance groove by cutting by rotation of the circular blade.

According to such a method of processing the blade relief groove, since at least the fixed holding portion and the blade relief groove of the slider table can be formed corresponding to the thickness of the blade, the blade and the side wall of the blade relief groove can be formed. There is almost no gap between them.

[0012]

Next, embodiments of the present invention will be described with reference to the drawings. Cutting device 10 shown in FIG.
Is generally composed of a slider table 11 for holding the workpiece, and a blade 12 for cutting the workpiece held on the slider table 11. The slider table 11 holds the workpiece and holds the work table. 13, a slider table body 14 slidable in the horizontal direction, a fixed holding portion 15 erected and fixed on the slider table body 14, and a pair of sliding members of a required length formed on the slider table body 14. The movable holding section 17 is guided by the groove 16 and is movable.

In the movable holding portion 17, bolts 18a and 18b are passed through two through holes provided in the vertical direction, and by rotating the bolts 18a and 18b by a required angle, the slider table body of the movable holding portion 17 is rotated. 14
The fixed state to the can be adjusted. That is, bolt 1
When 8a and 18b are rotated in the loosening direction, the movable holding portion 1
7 can be moved along the sliding groove 16,
When the bolts 18a and 18b are rotated in the tightening direction, the movable holding portion 17 is fixed to the slider table body 14.

On the fixed holding portion 15 side of the movable holding portion 17, there is provided a tilting portion 20 which rotates by a required angle about the support shaft 19 as a rotation axis and tilts. The tilting portion 20 is provided with a pressing lever 21. When rotated in a predetermined direction, it is pressed and tilted. Further, the movable holding portion 17 is provided with a blade escape groove 22 in a vertical direction in order to avoid interference with the blade 12 during cutting.

Unlike the conventional cutting device 30, the fixed holding portion 15 and the slider table main body 14 are not formed with blade relief grooves in advance.

A method of forming a blade relief groove in the slider table 11 constituting the cutting device 10 of FIG. 1 will be described. First, as shown in FIG. 2A, a blade 12 used for cutting is mounted and rotated. Then, as shown in FIG. 2B, the slider table 11 is moved in the L direction.

When the blade 12 rotates and the slider table 11 moves in the L direction, the blade 12 first cuts into the left end of the slider table body 14. When the slider table 11 further moves in the L direction,
The blade 12 is further cut into the slider table body 14 and also into the fixed holding section 15 so that the blade 12 is fixed to the fixed holding section 1.
5 through. When the blade 12 penetrates the fixed holding portion 15 in this way, as shown in FIG. 3A, a blade escape groove 23 which is a notch having the same width as the thickness of the blade 12 is formed in the fixed holding portion 15. You.

Then, as shown in FIG. 2C, when the slider table 11 further moves in the L direction, the slider table body 14 has a width similar to the thickness of the blade 12 as shown in FIG. The blade escape groove 24 is formed in the longitudinal direction.

FIG. 2C shows the movement of the slider table 11 when the blade escape groove 24 is formed up to a region near the right end of the slider table main body 14. At least the slider table main body 14 is shown. If the area partitioned by the fixed holding portion 15 and the movable holding portion 17 of 14 is cut by the blade 12, the workpiece can be cut.

Thus, the blade escape grooves 23, 2
4 is formed to the minimum necessary width by its own blade 12 in a state where the cutting device 10 is assembled.

When a workpiece is cut using a cutting device in which the blade escape grooves 23 and 24 are formed in the fixed holding portion 15 and the slider table main body 14 by the above-described processing method, first, FIG. 2), the workpiece 25 is placed on the slider table main body 14 and a part of the outer peripheral surface thereof is brought into contact with the fixed holding portion 15. And
By rotating the bolts 18a and 18b in a loosening direction, the movable holding portion 17 is slid in a direction approaching the fixed holding portion 15, and the workpiece 25 is held between the fixed holding portion 15 and the movable holding portion 17, and the bolt 18a , 18b in the tightening direction to fix the movable holding portion 17.

After the workpiece 25 is fixed in this way, next, in order to prevent the workpiece 25 from moving upward due to the rotation of the blade 12 during cutting, as shown in FIG. Is rotated in a predetermined direction to tilt the tilting portion 20 to apply a pressing force to the workpiece 25 from above. By applying the pressing force from above, the support state of the workpiece 25 is stabilized.

By sliding the slider table 11 in the L direction while the workpiece 25 is stably held in this manner, the workpiece 25 is sliced by the rotating blade 12.

At this time, since the blade relief groove 24 is formed to have a width substantially equal to the thickness of the blade 12, the blade 12 and the side wall of the blade relief groove 24 formed in the slider table main body 14 are very close to each other. Since there is almost no gap, even if the workpiece 25 is sliced thinly, the workpiece after slicing does not fall downward from the blade relief groove 24.

[0025]

As described above, according to the blade relief groove processing method of the present invention, a blade relief groove can be formed corresponding to the thickness of the blade, and the blade and the side wall of the blade relief groove can be formed. Since there is almost no gap between them, the workpiece after cutting does not fall from the blade relief groove.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cutting device before being processed by a blade relief groove processing method according to the present invention.

2 (A), 2 (B), and 2 (C) show a method for processing the blade relief groove in the order of steps.

FIGS. 3A and 3B are explanatory views showing how a blade relief groove is formed by the blade relief groove processing method.

FIG. 4 is an explanatory view showing a state in which the workpiece is held on a slider table when the workpiece is cut using a cutting device having a blade relief groove formed by the blade relief groove processing method. .

FIG. 5 is an explanatory diagram showing a state of cutting a workpiece in a conventional cutting device.

FIG. 6 is an explanatory view showing a conventional cutting device.

[Explanation of symbols]

10 Cutting device 11 Slider table 12
... Blade 13 ... Work table 14 ... Slider table main body 15 ... Fixed holding section 16 ... Sliding groove 17 ... Movable holding section 18a, 18b
... Bolts 19... Support shafts 20... Tilting parts 21... Pressing levers 22, 23, 24... Blade relief grooves 25... Workpiece 30... Cutting device 31. 33 blade 34 working table 35 slider table body 36 fixed holding section 37 movable holding section 38 handle 39 feed screw 40 feed screw support section 41, 42, 43 Blade escape groove 44 ... Sliding groove

Claims (2)

[Claims] 1. A cutting apparatus comprising: a slider table for holding a workpiece; and a blade for cutting the workpiece held by the slider table, wherein the slider table is moved by the action of the blade. In order to avoid interference with the blade when cutting a workpiece, a method for processing a blade relief groove formed in advance in the slider table, wherein the slider table is a slider table body,
A fixed holding portion and a movable holding portion disposed on the slider table body for holding the workpiece; at least a blade escape groove formed in the fixed holding portion; and the fixed holding portion and the movable holding portion. And a blade escape groove formed in an area of the slider table main body, which is separated by a portion, moves the slider table in a blade direction, and moves the blade to the fixed holding portion, the fixed holding portion, and the movable holding portion. And a blade escape groove formed by cutting into the area of the slider table main body partitioned by the above. 2. The method according to claim 1, wherein the blade is a circular blade, and the blade is cut by rotating the circular blade to form a blade relief groove.