CN107790761A - Forming knife for watch inner case - Google Patents

Abstract

The invention discloses a watch inner shell forming cutter, which comprises a cutter head and a cutter rod, and is characterized in that: the tool bit terminal surface is equipped with combined forming cutting part and chip groove, and this combined forming cutting part includes rake face, combination back knife face, and the crossing combination cutting edge that constitutes of rake face and combination back knife face, the rake face constitutes for a side of chip groove, the combination cutting edge is including the first sword of erectting, first transition sword, second sword, first chisel edge, second transition sword and the second chisel edge that connect gradually.

Description

Forming knife for watch inner case

technical field

The invention relates to a processing tool, in particular to a watch inner case forming knife.

Background technique

Watches are common personal belongings of people in today’s society. Watches generally require high precision, especially mechanical watches, all of which are mechanically coordinated to make the pointer rotate accurately, so the precision is higher. If we want to ensure the accuracy of use, we first require the processing accuracy to reach Requirements, thereby the applicant has designed a forming knife to process watch inner case, guarantees machining accuracy.

Contents of the invention

In order to overcome the deficiencies of the prior art, the invention provides a watch inner case forming knife.

The technical solution adopted by the present invention to solve its technical problems is:

A wrist watch inner case forming knife, comprising a cutter head and a cutter bar, characterized in that: the end face of the cutter head is provided with a composite molding blade and a chip removal groove, and the composite molding blade includes a rake surface and a composite flank surface, And the combined cutting edge formed by the intersection of the rake face and the combined flank face, the rake face is formed by one side of the flute, and the combined cutting edge includes the first vertical edge, the first transition edge, the second Two vertical edges, a first chisel edge, a second transition edge, and a second chisel edge.

The chip removal groove is a V-shaped groove, and an inclined surface is provided on the cutter head, and the inclined surface intersects with the side surface to form the chip removal groove.

The combined flank includes a first vertical edge flank, a first transition edge flank, a second vertical edge flank, a first chisel flank, a second transition edge flank, and a second transition edge flank. The flank of the chisel edge, the first vertical edge is formed by the intersection of the flank of the first vertical edge and the rake face, the first transitional edge is formed by the intersection of the flank of the first transitional edge and the rake face, and the The second vertical edge is formed by the intersection of the second vertical edge flank and the rake face, the first chisel edge is formed by the intersection of the first chisel flank and the rake face, and the second transition edge is formed by the second transition The flank of the blade is formed by the intersection of the rake face, and the second chisel edge is formed by the intersection of the flank of the second chisel edge and the rake face.

The beneficial effects of the present invention are: the present invention comprises that the end face of the cutter head is provided with a combined forming edge portion and a chip removal groove, and the combined forming edge portion includes a rake face, a combined flank face, and the intersection of the rake face and the combined flank face constitutes The combined cutting edge, the rake face is formed by one side of the chip flute, and the combined cutting edge is composed of several straight lines. The above structure can not only complete the watch inner case forming process, but also the combined forming edge has high strength and is not easy to Collapse, good chip removal.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the front view of the present invention;

Fig. 2 is a view from another direction of the present invention.

Detailed ways

Referring to Fig. 1 and Fig. 2, the present invention discloses a watch inner casing molding knife, which includes a cutter head 1 and a cutter bar 2, and the end surface of the cutter head 1 is provided with a composite molding blade and a chip removal groove 3, and the composite molding blade The part includes a rake face 4, a combined flank, and a combined cutting edge formed by the intersection of the rake face 4 and the combined flank. The rake face 4 is formed by one side of the flute 3.

The combined cutting edge includes the first vertical edge 5, the first transition edge 6, the second vertical edge 7, the first chisel edge 8, the second transition edge 9, and the second chisel edge 10 connected in sequence; The blade surface includes the first vertical edge flank, the first transitional flank, the second vertical flank, the first chisel flank, the second transitional flank, and the second chisel flank The first vertical edge 5 is formed by the intersection of the first vertical edge relief surface and the rake surface 4, and the first transition edge 6 is formed by the intersection of the first transition edge flank and the rake surface 4. The second vertical edge 7 is formed by the intersection of the second vertical edge flank and the rake face 4, the first chisel edge 8 is formed by the intersection of the first chisel flank and the rake face 4, and the second transition edge 9 is constituted by the intersection of the second transition edge flank and the rake face 4 , and the second chisel edge 10 is constituted by the intersection of the second chisel flank and the rake face 4 .

The chip removal groove 3 is a V-shaped groove, and the cutter head 1 is provided with an inclined surface 11, the inclined surface 11 intersects with the side surface to form the chip removal groove 3, because this structure is combined cutting of cutting edges, each The position and height of the cutting edge are different, so in order to ensure the strength and function of the cutting edge, it is preferable to set it as a V-shaped groove, and the V-shaped groove has a large space to escape.

The above is a detailed introduction to a watch inner case forming knife provided by the embodiment of the present invention. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

Claims (3)

1. A wrist watch inner case forming knife, comprising a cutter head and a knife bar, characterized in that: the end face of the cutter head is provided with a combined molding blade and a chip removal groove, and the combined molding blade includes a rake face, a combined back knife surface, and the combined cutting edge formed by the intersection of the rake face and the combined flank face. The rake face is formed by one side of the flute. , the second vertical edge, the first chisel edge, the second transition edge, and the second chisel edge. 2. A watch inner case molding knife according to claim 1, characterized in that: the chip removal groove is a V-shaped groove, and the cutter head is provided with an inclined surface, the inclined surface intersects with the side surface to form the chip flute. 3. A watch inner case forming knife according to claim 1, wherein the combined flank includes a first vertical flank flank, a first transitional flank flank, and a second vertical flank flank surface, the first chisel flank, the second transitional flank, and the second chisel flank, the first vertical edge is formed by the intersection of the first vertical flank and the rake face, the The first transition edge is formed by the intersection of the flank of the first transition edge and the rake face, the second vertical edge is formed by the intersection of the flank of the second vertical edge and the rake face, and the first chisel edge is formed by the intersection of the first chisel The second transition edge is formed by the intersection of the second transition edge flank and the rake face, and the second chisel edge is composed of the second chisel flank and the rake face Intersect composition.