JPS5811471Y2 - Deburring cutter of deburring machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a deburring cutter for a deburring machine.

An example of a deburring machine for cutting and removing burrs generated on the inner circumferential wall of a cylinder block or the like during casting is shown in FIG. 1.

This deburring machine has tools e1 to e3 protruding from a tool post C attached to a slide base b that is reciprocated by a drive source such as a hydraulic cylinder a, corresponding to a plurality of deburrs d1 to d5 to be removed. However, cutters f1 to f5 are formed at the side ends of this tool, and the reciprocating movement of the slide base b causes the cutters f1 to f5 to remove burrs.

In addition, in such a configuration, if each pari is removed at the same time, a large thrust is required from the drive source, which may have an adverse effect on the workpiece, so the cutter is The distances between and paris are arranged at t 1 > t 2 > t a and al > a2, and the paris are removed in the order of d4 → d2 → d1 in the forward process, and in the order of d3 → d5 in the return process. In order Paris is to be excised.

As mentioned above, in conventional deburring machines, multiple deburring cutters do not perform deburring work at the same time, but in each cutter 11 to 15, the entire cutter contacts the deburring at the same time. , and because the cutter was designed to cut at the same time, a large amount of cutting force was required from each cutter, and since the pari was cut simultaneously along its entire length, large stress was generated at the root of the pari, which could cause cracks to occur in this area. be.

Furthermore, due to the above, there was a problem that the life of the cutter was short.

The present invention was developed in consideration of the above points, and the cutting force acting on each cutter can be reduced, and large stress will not be applied to the base of the cutter, and the life of the cutter can be extended. It is an object of the present invention to provide a deburring cutter for a deburring machine as described above.

The configuration will be explained below based on the embodiment shown in FIG. 2 and below.

In the figure, 1 is a hydraulic cylinder as a driving source, 2 is a slide base, 3 is a blade mount, 4 a , 4 b , and 4 C are tools, and 5 a to 5 e are cutters formed at the side ends of the tools.

A plurality of protrusions 6 are provided along the edge of each of the cutters 5a to 5e on the front side in the cutting direction.

Further, the cutters 5a to 5e are inclined at an angle α with respect to the barrier, as shown in FIG.

Further, the projection 6 may have a triangular pyramid, a quadrangular pyramid, or a conical shape, and each has a relief angle β.

Note that the above example shows that the cutter is inclined at an angle α with respect to the barrier, but in this case, the cutter is made parallel to the paris, and the height of the protrusion 6 is changed so that the line connecting the protrusion 6 is inclined with respect to the buff. It's okay.

When the cutters 5a to 5e are moved in the axial direction to cut the barrier, the protrusion 6 first hits the barrier as shown in FIG. A crack 9 is formed at the notch 8.

The barrier in this state is then cut by cutters 5a to 5e.

At this time, the plurality of protrusions 6 and the cutters 5a to 5e contact the barrier from one side and sequentially crush and cut the barrier from one side.

The present invention is as described above, and in the deburring cutter of the deburring machine in which the cutters 5a to 5e cut the barrier by reciprocating, an edge is attached to the front edge of the cutters 5a to 5e in the cutting direction. Although a plurality of protrusions 6 are provided along the barrier, the protrusions 6 contact the barrier before the cutters 5a to 5e cut the barrier, and a plurality of notches 8 are formed in the barrier before cutting by the cutters 5a to 5e. As a result, the cutting force acting on each cutter can be reduced, and the barrier can be cut without applying large stress to the base of the barrier, thereby preventing cracks from forming at the cut part of the barrier. can.

Furthermore, since no large cutting force is applied to each individual cutter, the life of the cutter can be significantly extended.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a conventional example, Fig. 2 and the following show embodiments of the present invention, Fig. 2 is a sectional view, Fig. 3 is a front view,
FIG. 4 is a plan view of the main part, and FIGS. 5 and 6 are a sectional side view and a front view showing the operating state. 5a-5e are cutters, 6 is a kick, 7 is a pari.

Claims (1)

[Scope of utility model registration request] In a deburring cutter of a deburring machine in which the cutters 5a to 5e cut the barrier by reciprocating, a plurality of protrusions 6 are provided along the edges of the cutters 5a to 5e on the front edge in the cutting direction. A deburring cutter for a deburring machine, characterized in that it is provided with a deburring cutter.