JPH09295272A - Deburring tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deburr properly, even when a deburring motive power device gripping a deburring tool is mounted on a robot and used. SOLUTION: In a deburring tool 1, an abrasive grain electro-deposited part 12 is formed by that a borazon abrasive grain 13 or diamond abrasive grain 13 with a proper grain diameter is electro-deposited on the surface of other end side, while leaving a handle part 11 on one end side of an elastic metal wire 14. The deburring motive power device 2 grips the handle part of the deburring tool 1 and is formed so as to give a rotation drive and vibration drive or either one of them to the deburring tool 1. The deburring motive power device 2 mounted on the end of the arm A of an industrial robot is sent along an end edge with a burr and removes the burr properly, while putting the abrasive grain electro-deposited part in the crossing direction to the end edge with burr of a work by the operation of the arm A of the industrial robot and being held in a state push-pressed from the side to the end edge and bent by a proper amount.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring tool for removing burrs generated on a workpiece by cutting or forming, and more particularly to a deburring tool mounted on a robot or the like.

[0002]

2. Description of the Related Art A deburring tool mounted on a robot for removing burrs generated on a workpiece by cutting, forming or the like is a cone-shaped carbide rotary river in the prior art (see FIG. 3 (a)). A rotary power unit equipped with and a vibration power unit equipped with a flat sheet (see FIG. 3B) are used. Further, one end is fixed to the tip of the central axis a, and the other end is formed into a canopy-like shape by inserting a plurality of elastic wire rods d inserted into the radial groove holes c of the disk b attached to the central axis a. The rotary power unit with the attached tool (see FIG. 3C) is used.

[0003]

When a robot is equipped with a rotary power unit equipped with the above-described carbide rotor revolver or a vibration power unit equipped with a flat plate, the arm of the robot is equipped with a tool. Since the teaching is performed so as to move a certain machining path, not only the burr but also the part of the work body due to the rigidity of the carbide rotor river and flat file due to the positioning error of the work and the state of the burr. The problem of scraping arises. Therefore, high precision deburring such as thread chamfering is impossible.

On the other hand, if a rotary power unit equipped with a tool having a plurality of elastic wire rods d in the shape of an umbrella is attached to a robot, the problem of excessive shaving described above can be solved for the time being. This is good for work pieces made of materials that can be easily removed by contact, but for work pieces made of materials such as aluminum and synthetic resin, the burr is tenacious, making it difficult to scrape it off. Can not.

Therefore, in any case, it is difficult to automate the deburring work by the robot equipped with the power unit equipped with the deburring tool, and it is necessary to manually perform the deburring. This is particularly noticeable in deburring narrow spaces or edges having complicated shapes, for example, deburring of edges of T-shaped grooves as shown in FIG. The present invention provides a deburring tool that enables proper deburring in the case of robot deburring work.

[0006]

A deburring tool of the present invention comprises a grinding portion provided on the surface of one end of an elastically deformable wire and a handle portion provided on the other end.
The grinding portion is, for example, an abrasive grain electrodeposition portion in which abrasive grains such as borazon abrasive grains or diamond abrasive grains are electrodeposited on the surface of the wire rod, and the wire rod is, for example, a piano wire.

The deburring tool is used by being attached to a rotary power unit or a vibration power unit attached to the end of the arm of the industrial robot, and the abrasive grain electrodeposition unit is operated by the operation of the arm of the industrial robot. Is oriented to intersect the burred edge of the workpiece and is fed along the burred edge while being pressed laterally against the edge and flexed by an appropriate amount. The burrs are removed by the pressing force caused by the bending, and the burrs are properly removed without scraping the part of the work body.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A deburring tool according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1A, a deburring tool 1 according to the present invention is held by a chuck 21 of a rotary or vibration deburring power unit 2 and is rotationally or vibrationally driven. The deburring power unit 2 is used by being attached to the end of the arm A of the industrial robot as shown in the figure.

As shown in FIG. 1B, the deburring tool 1
Is an appropriate thinness with large elastic deformation (for example, 1-3 mm diameter)
Of the piano wire 14 having an appropriate length (for example, 80 mm), leaving the handle portion 11 (for example, 30 mm) on one end side, and an abrasive grain 13 having an appropriate grain size (for example, 250 to 188 μm) on the surface of the other portion, for example, borazon abrasive grain Alternatively, diamond abrasive grains are electrodeposited to form the abrasive grain electrodeposition portion 12.

In the deburring work, the abrasive grain electrodeposition portion 12 of the deburring tool 1 held by the chuck 21 of the deburring power unit 2 mounted on the end portion of the arm A of the industrial robot.
Is arranged in a direction intersecting with the edge of the workpiece W on which there is a burr, and is pressed by the edge of the workpiece W from the side to keep a certain amount (for example, about 2 mm) of the burr while keeping the burr. It follows the trajectory that is sent along the edge. (See Fig. 2)

Therefore, the operator preliminarily teaches the industrial robot to give the arm A a machining locus of the above movement. Then, when the deburring tool 1 in the deburring power unit 2 is driven to rotate or vibrate and the industrial robot is operated, the industrial robot operates as taught, and the abrasive grains of the deburring tool 1 rotate or vibrate. The electrodeposited portion 12 is fed along the edge with burrs in the bent state as described above, and the abrasive grain electrodeposited portion 12 appropriately scrapes off the burrs by the pressing force due to the elastic deflection.

Thus, the deburring work is performed on the workpieces one after another, even if there is some variation (for example, 0.3 to 0.5 mm) in the position of the edge of the workpiece where the deburring occurs. Since the abrasive grain electrodeposition portion 12 is in contact with the edge with burrs due to the pressing force due to the elastic deflection of the deburring tool 1,
There is no problem in deburring work.

Moreover, since the abrasive grain electrodeposition portion 12 has a mere fine wire form, it can be easily inserted even in a narrow working area. Therefore, for example, deburring or thread chamfering of the edge of the T-shaped groove S resulting from cutting as shown in FIG. 2 can be easily performed. The deburring power unit 2 may be one that rotationally drives the deburring tool 1 as well as vibrates. It should be noted that, in this embodiment, although the deburring tool is driven to rotate or vibrate, the deburring tool is fixed and the fixed deburring tool is driven to rotate or vibrate. Alternatively, the burrs may be removed by contacting with each other.

[0014]

When the deburring tool of the present invention is mounted on the end of the arm of an industrial robot and deburring is carried out, the abrasive grain electrodeposition portion has a burred edge in a bent state. The burrs are properly scraped off by the pressing force due to elastic bending. Thus, even if there is some variation in the position of the burred edge of the workpiece, the abrasive grain electrodeposition portion is in contact with the burred edge due to the pressing force due to the elastic deflection of the deburring tool 1. There is no problem in deburring work.
Moreover, since the abrasive grain electrodeposition portion is simply a fine line shape,
It can be easily inserted even in a narrow processing area. Therefore, for example, deburring or thread chamfering at a portion such as the end edge of the T-shaped groove is easily performed.

[Brief description of drawings]

FIG. 1 is a front view (a) of a deburring tool and an enlarged view (b) of an abrasive grain electrodeposition portion of the deburring tool according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a usage state of the deburring tool according to the embodiment of the present invention.

FIG. 3 is a front view of a conventional deburring tool.

[Explanation of symbols]

 1 Deburring Tool 11 Handle 12 Abrasive Grain Electrodeposition 13 Abrasive Grain 14 Piano Wire 2 Deburring Power Device 21 Chuck A Industrial Robot Arm W Workpiece

Claims (4)

[Claims] 1. A deburring tool comprising a grinding portion provided on the surface of one end of an elastically deformable wire and a handle portion provided on the other end. 2. The deburring tool according to claim 1, wherein the grinding portion is an abrasive grain electrodeposition portion in which abrasive grains are electrodeposited on the surface of a wire rod. 3. The deburring tool according to claim 2, wherein the abrasive grains of the abrasive grain electrodeposition portion are borazone abrasive grains or diamond abrasive grains. 4. The deburring tool according to claim 1, wherein the wire is a piano wire.