JPH11188521A - Beveling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability and to simplify a machine structure by minimizing the tilting moving range of a cutter as far as possible. SOLUTION: A cutter 2 is provided so as to face a work piece W fixed on a table 1 by a clamp, the cutter 2 is tilted and moved, and the groove angle is adjusted. The cutting edge of the cutter 2 is constituted of a bottom cutting edge (a) and an outer peripheral cutting edge (b), the outer peripheral cutting edge (b) is so formed as to be make an obtuse angle in relation to the bottom cutting edge (a), and the cutting edges are clearly divided. The bottom cutting edge (a) and the outer peripheral cutting edge (b) are selected and used according to the beveling angle to performed beveling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a groove processing apparatus for forming a groove, a K shape, or the like on an end of a welding member (work material).

[0002]

2. Description of the Related Art In order to perform a welding process, a groove process for a work material is indispensable. In order to obtain a sound welding quality, a cutting process using a cutter has been frequently performed in recent years. For example, in the case of a plate member or the like, processing such as a groove of FIG. 1 and a groove of K in FIG. 12 is performed, and such processing is performed as described in JP-A-4-13509. Machine is provided.

In this conventional groove processing machine, as shown in FIG. 13, a workpiece W is clamped and fixed on a table 11, while a cutter 12 is moved forward and backward (Y-axis direction), up and down (Z-axis direction), and inclined ( The cutter 12 is configured so that it can be moved and adjusted in each axial direction (R-axis direction). After setting the position of the cutter 12 to a required processing position, the cutter 12 is moved in the front and back directions in the drawing to perform the groove processing.

[0004]

The conventional beveling machine described above uses only the bottom blade m of the cutter 12, so that a K-shaped beveling process is performed on the workpiece W. In the first step, the cutter 12 is tilted downward in the first step, and the cutter 12 is tilted upward in the subsequent second step to perform cutting.

[0005] Therefore, in order to cope with a large groove angle, the inclination movement range of the cutter 12 and the spindle unit 13 holding the cutter 12 becomes extremely large, and there is an operational problem that the angle cannot be set quickly. Was. In addition, the design condition becomes severe due to the expansion of the tilting movement range described above, resulting in an adverse effect such as an increase in the overall configuration of the machine and a decrease in rigidity of the spindle unit 13 due to overhang.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and achieves a quick operation by reducing the range of the tilting movement of the cutter, and eliminates the adverse effects on the design. An object of the present invention is to provide a groove processing apparatus that can simplify the configuration.

[0007]

In order to achieve the above object, a groove processing apparatus according to the present invention is configured as follows.

That is, the gist of the present invention is to provide a groove processing apparatus in which a work material and a cutter are provided in correspondence with each other, and a groove processing angle is adjusted by tilting the cutter side. The cutting edge of the cutter is constituted by a bottom edge and an outer peripheral edge, and the cutting edge is clearly divided by these, and one of the two edges is selected for cutting.

[0009] Further, the groove processing apparatus according to the present invention is characterized in that in claim 2, the opening angle between the bottom blade and the outer peripheral blade is set to a right angle or an obtuse angle.

[0010] Further, the groove processing apparatus according to the present invention is characterized in that in claim 3, the cutting of the work material is performed simultaneously by a plurality of cutters.

In the above-mentioned beveling apparatus, the bottom blade and the outer peripheral blade of the cutter are inclined and moved together, but the inclination angle is always different due to a distinct difference in the cutting edge. Therefore, when the groove angle is small as shown in FIGS. 2, 3 and 7, for example, the bottom blade is used. When the groove angle is large as shown in FIGS. 5, 6, 9 and the like, the outer blade is used. By using the cutter, the range of the tilt movement of the cutter can be made as small as possible.

When the cutter is constructed as in claim 2 and the opening between the bottom blade and the outer peripheral blade is set to an obtuse angle of 120 degrees, for example, the actual groove angle (in the range of 60 degrees upward to 60 degrees downward) is set. To cover the cutter with a 60 degree tilt movement.

FIG. 11 is a block diagram showing the configuration of the third embodiment;
The groove can be temporarily processed by simultaneously supporting the cutters on a number of groove surfaces of the K-shaped groove shown in FIG.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a groove processing apparatus according to the present invention will be specifically described. In FIG. 1, W is a workpiece 2 clamped and fixed on a table 1 and a cutter provided corresponding to the workpiece W.
a is provided with a bottom blade a and a peripheral blade b as cutting edges. The outer peripheral edge b has an opening angle of a right angle or an obtuse angle (120 degrees in the embodiment) with respect to the bottom edge a, and clearly separates the cutting edge.

The cutter 2 is mounted on a rotary shaft 3 at an end of a spindle unit (not shown) and is driven to rotate.
The main spindle unit has the same structure as the conventional example, and has a front-rear (Y-axis direction), a vertical (Z-axis direction), and an inclination (R-axis direction).
The cutting position and angle of the cutter 2 with respect to the workpiece W are set.

The configuration of the groove processing apparatus according to one embodiment is as described above, and includes, for example, the end face processing (groove angle 0 °) shown in FIG. 2 to the groove processing (groove angle +30 degrees) shown in FIG. When the groove angle is small, the cutter 2 is inclined or moved horizontally or downward, and cutting is performed in correspondence with the workpiece W and the bottom blade a. In this case, the inclination movement range of the cutter 2 is 0 degrees to
30 degrees downward.

Next, when the groove angle is large, such as the groove processing (groove angle +45 degrees) in FIG. 4 to the groove processing (groove angle +84 degrees) in FIG. 6, the cutter 2 is tilted upward and downward. Then, the processing is performed in accordance with the outer peripheral blade b of the workpiece W. In this case, the inclination movement range of the cutter 2 is 15
Degrees to 26 degrees downward.

A groove angle (not shown) +30 degrees to +45
In the processing of the degree, the cutter 2 is tilted upward and moved so that the outer peripheral blade b corresponds to the workpiece W. In this case, the inclination movement range of the cutter 2 is upward 30 degrees to 15 degrees.

Further, the groove processing (groove angle of -20 degrees) shown in FIG.
When the groove angle up to the degree is small, the cutter 2 is tilted upward and moved, and processing is performed corresponding to the processing material W with the bottom blade a. In this case, the inclination movement range of the cutter 2 is as follows.
0 degrees to 30 degrees upward.

When the groove angle is large, such as the groove processing (groove angle -30 degrees) shown in FIG. 8 to the groove processing (groove angle -60 degrees) shown in FIG. 10, the cutter 2 is tilted downward and moved downward. Then, a cutting process is performed corresponding to the outer peripheral blade b of the workpiece W. In this case, the inclination movement range of the cutter 2 is 30 degrees downward.
0 degrees.

As described above, when the outer peripheral blade b is configured to have an opening of 120 degrees with respect to the bottom blade a, the cutter is set with respect to a practical groove angle (groove angle +84 degrees to groove angle -60 degrees). 2 can be set within a range from 30 degrees downward to 30 degrees upward.

Under such conditions, the inclination angle of the cutter 2 is set with respect to the required groove angle, and when the movement adjustment is completed, the vertical position of the cutter 2 is considered in consideration of the root face size of the workpiece W. After that, the cutter 2 is moved in the front and back directions in the figure. As a result, required groove processing can be performed on the work material W.

In the above embodiment, the opening angle between the bottom blade a and the outer blade b in the cutter 2 is set to 120 degrees.
By setting the opening angle larger than that, the inclination movement range of the cutter 2 can be further reduced. For example, when the opening angle is 135 degrees, the inclination movement range can be set within the range from 15 degrees downward to 15 degrees upward at a practical groove angle (groove angle +60 degrees to groove angle -60 degrees).

By increasing the opening angle of the cutter 2 as described above, the tilting movement range can be reduced. However, the outer dimensions of the cutter 2 are contradictoryly increased. Becomes noticeable. Therefore, the appropriate range is determined according to the allowable value in the cutting process.

The opening angle of the cutter 2 is within the recommended range from an obtuse angle to a right angle (90 degrees).
It is not recommended to practice outside of favorable design conditions because the range of the tilt movement becomes progressively larger.

In one embodiment, the case where the groove processing is performed by one cutter has been described. However, in the case of a K-shaped groove having two groove surfaces as shown in FIG. It is correspondingly provided with two cutters 2.
By performing the simultaneous machining in this manner, the working efficiency can be further improved.

[0027]

As described above, the groove processing apparatus according to the present invention can greatly reduce the inclination movement range of the cutter by performing cutting using the bottom blade and the outer peripheral blade. As a result, it is possible to rationally achieve an improvement in workability by speeding up the tilt adjustment and a simplification of the machine configuration by improving the design conditions.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of a groove processing apparatus according to the present invention.

FIG. 2 is an explanatory diagram of a processing state by a groove processing apparatus of the present invention.

FIG. 3 is an explanatory view of a processing state.

FIG. 4 is also an explanatory diagram of a processing state.

FIG. 5 is an explanatory view of a processing state.

FIG. 6 is also an explanatory diagram of a processing state.

FIG. 7 is an explanatory view of a processing state.

FIG. 8 is an explanatory view of a processing state.

FIG. 9 is also an explanatory view of a processing state.

FIG. 10 is an explanatory view of a processing state.

FIG. 11 is an explanatory view showing another embodiment of the groove processing apparatus according to the present invention.

FIG. 12 is an explanatory diagram of a conventional groove processing state.

FIG. 13 is an explanatory view of a conventional groove processing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Table 2 Cutter 2a Body a Bottom blade b Outer edge 3 Rotation axis W Work material

Claims (3)

[Claims] 1. A bevel processing apparatus in which a work material and a cutter are provided in correspondence with each other, and a bevel processing angle is adjusted by tilting and moving the cutter side. It consists of a blade and an outer peripheral blade, and these clearly separate the cutting edge,
A beveling apparatus characterized in that one of the two cutting edges is selected for cutting. 2. The groove processing apparatus according to claim 1, wherein an opening angle between the bottom blade and the outer peripheral blade is a right angle or an obtuse angle. 3. The groove processing apparatus according to claim 1, wherein the cutting of the workpiece is performed simultaneously by a plurality of cutters.