JPS6134928B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing burrs from the end surface of a workpiece such as a gear, which removes burrs generated on the end surface of the workpiece when the workpiece is formed.

Generally, when forming a tooth profile on the outer periphery of a gear, burrs protrude from the back side of the gear, so in order to remove the burrs, there is a method of removing the burrs from the end face of the gear using a wire brush, and rotating paper. There are two methods: one method is to remove burrs using the surface of the paper, the other is to cut burrs by bringing a cutter that is continuously rotated by a motor into contact with the burr on the workpiece and displacing it along the outer circumference of the workpiece. It is used.

However, methods using wire brushes, paper, etc. are effective when the burr is thin, but cannot be used when the burr is thick, and the cutting parts wear out rapidly, making it difficult to replace the parts. The problem is that it is required.

In addition, in the case of a method using a rotary cutter, the durability of the cut parts improves, but in the direction of rotation of the cutter, the burrs on the mountain side of the gear can be removed, but the burrs on the valley side fall down, so be sure to remove them carefully. However, there is a problem that burrs still remain.

The present invention has been made in view of the above-mentioned problems, and uses a cutting tool as a cutting part, and makes it possible to completely remove burrs from the end surface of the workpiece by bringing the cutting tool into reliable contact with the burr protruding from the end surface of the workpiece. Moreover, the object of the present invention is to provide a method for deburring the end face of a workpiece such as a gear, which is extremely sturdy and has significantly improved durability because a cutting tool is used for the cut part.

The basic configuration of the present invention is such that a workpiece such as a gear having a tooth profile formed on its outer periphery is moved along the end surface of the workpiece by a cutting tool having a blade portion having a width larger than the pitch width of the tooth profile. By reciprocating in the radial direction, burrs on the tooth profile portion are removed, and then the workpiece is sequentially rotated by the pitch width of the tooth profile to repeat the deburring operation.

An embodiment of the method of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a workpiece such as an annular gear with a tooth profile 2 formed on the outer periphery during molding, and a burr 3 is present on the back side 1b of both end surfaces 1a and 1b of the workpiece 1. It protrudes in a direction perpendicular to the back surface 1b.

4 is a work chuck that is attached to the machine side and supports the work 1; this work chuck 4 has a shaft 5 extending in the horizontal direction;
The inner circumference 1c of the workpiece 1 is fitted and attached to the tip of the
Thereafter, the workpiece 1 is fixed to the workpiece chuck 4 by attaching the chuck member 6 to the tip of the shaft 5. Work chuck 4
is set so that when the shaft 5 rotates by the pitch width H of the tooth profile 2 of the workpiece 1, it stops for a predetermined time, and by repeating this rotation, the workpiece 1 rotates once around the axis of the workpiece 1.

In the method of the present invention using these members and devices, first, the workpiece 1 is supported and positioned by the workpiece chuck 4, and then the cutting tool 7 having the blade portion 7a slightly larger than the pitch width H of the workpiece 1 is moved into the cylinder. Using the device 8, the cutting tool 7 is reciprocated from the lower and outer side of the work 1 in the radial direction of the work 1 to a position perpendicular to the burr 3 protruding from the back surface 1b of the work 1. Remove burr 3 for pitch width H.

At that time, the cutting tool 7 moves along the back surface 1b of the workpiece 1, and the blade part 7 of the cutting tool 7 moves to the burr 3.
Since the burrs 3 are abutted so as to be perpendicular to each other and the burrs 3 are removed, the burrs 3 protruding from the back surface 1b of the workpiece are reliably removed.

In addition, as a device for operating the cutting tool 7, it is sufficient to use a portable and space-saving simple cylinder device 8 in which a cylinder (not shown) is operated by air pressure, so it can be installed anywhere and is convenient to carry. In addition, the remaining space can be used effectively.

Next, the workpiece 1 is rotated by the workpiece chuck 4 by the pitch width W around the axis of the workpiece 1, and the burr 3 protruding from the back surface 1b of the workpiece 1 is removed by the bite 7.
The blade portion 7a is opposed to the blade portion 7a.

In this manner, by repeating the above steps and rotating the workpiece 1, all of the burrs 3 protruding from the back surface 1b of the workpiece 1, such as a gear, are reliably removed.

Note that the workpiece 1 is not limited to the gear 1, but may be a spline or the like having tooth profiles on the outer periphery.

FIG. 3 shows a second embodiment of the method of the present invention, in which a cutting tool 7 in which the blade portion 7a of the cutting tool 7 of the embodiment is formed into a substantially inverted V shape is used. 3, the blade portion 7'a of the cutting tool 7' is fitted and the burr 3 can be removed more reliably.

As is clear from the above-described configuration, according to the method of the present invention, a cutting tool is used as the cutting part, and the burr on the end surface of the workpiece can be completely removed by ensuring that the tool comes into contact with the burr protruding from the end surface of the workpiece. Moreover, since a cutting tool is used for the cutting parts, it is very sturdy and has the effect of improving durability.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the method of the present invention;
FIG. 2 is a side view showing the arrangement relationship between the cutting tool and the burr shown in FIG. 1, and FIG. 3 is a partial front view of the periphery of the blade of the cutting tool showing another embodiment. 1... Workpiece, 1b... Back side of workpiece (end surface),
2...Tooth profile, 3...Burr, 7,7'...Bite,
7a, 7'a...Blade part, H...Pitch width, W...
Blade width.

Claims (1)

[Scope of Claims] 1. For a workpiece such as a gear having a tooth profile formed on its outer periphery, a cutting tool having a blade portion having a width larger than the pitch width of the tooth profile is inserted along the end face of the workpiece in the radial direction of the workpiece. Deburring the end surface of a workpiece such as a gear, the workpiece being reciprocated to remove burrs on the tooth profile portion, and then the workpiece being sequentially rotated by the pitch width of the tooth profile and the deburring operation described above being repeated. Method.