CN204621112U - A kind of convex tapering forming cutter - Google Patents

Abstract

The utility model relates to a forming knife for convex taper, which comprises a knife handle and a knife head arranged at one end of the knife handle. The radius of the blade gradually increases from the end of the blade toward the handle, and then gradually increases until it is equal to the radius of the handle. The forming knife for convex taper of the utility model makes the radius of the blade gradually shrink from the end of the blade toward the handle of the knife and then gradually increases to be equal to the radius of the handle of the knife, so that the blade has a concave taper, so that it can be used in one process. The convex taper is processed at one time, which improves the processing efficiency and reduces the processing cost.

Description

A forming knife for convex taper

technical field

The utility model relates to a machining tool, in particular to a forming knife for machining convex tapers.

Background technique

As an important part of machining tools, forming knives are special tools for processing non-forming surfaces, and are used to process places that ordinary milling cutters cannot or cannot process in place. At present, when processing the convex taper, it needs to be completed by multiple forming knives in multiple processes, which reduces the processing efficiency and increases the processing cost.

In view of the above-mentioned defects, the designer actively researches and innovates in order to create a forming knife for processing convex taper, so that it has more industrial utilization value.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a forming knife that can process a convex taper in only one process.

The forming knife for convex taper of the present utility model comprises a handle and a cutter head arranged at one end of the handle, the head includes two blades which are axisymmetric with the central axis of the handle, and the blades are The radius gradually increases from the end of the blade toward the handle, and then gradually increases to be equal to the radius of the handle.

Further, one side of the two blades is provided with chamfers along their edges.

Further, the side surfaces of the two blades transition to the handle through arcs.

Further, the end face of the cutter head is a plane.

Further, the knife handle and the knife head are integrally formed of cemented carbide.

By virtue of the above scheme, the forming knife for convex taper of the present utility model gradually increases the radius of the blade to be equal to the radius of the handle by making the radius of the blade gradually shrink from the end of the blade toward the handle, so that the blade has a concave taper, thereby The convex taper can be processed in one process, which improves the processing efficiency and reduces the processing cost.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the end face of the cutter head in the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

Referring to Fig. 1 and Fig. 2, a kind of convex taper forming knife described in a preferred embodiment of the present invention comprises a knife handle 10 and a knife head 20 arranged at one end of the knife handle 10, and the knife head 20 includes two knives The central axis of the handle 10 is an axisymmetric blade 21 , and the radius of the blade 21 gradually increases to be equal to the radius of the handle 10 after tapering from the end of the blade 21 toward the handle 10 . The radius of the blade 21 is the shortest distance from the farthest edge of the blade 21 to the axis of the handle 10 . In the utility model, by making the radius of the blade 21 gradually shrink from the end of the blade 21 toward the handle 10, it gradually increases to be equal to the radius of the handle 10, so that the blade 21 has a concave taper, so that it can be used once in a process. Process a convex taper.

Preferably, one side of the two blades 21 is provided with a chamfer 22 along its edge. In the process of processing, the chamfer 22 can be used to remove the margin first, reduce wear and tear, protect the blade 21, and prevent chipping, thereby improving service life.

Furthermore, the side surfaces of the two blades 21 transition to the handle 10 through the arc surface 30, the grooves are shallow, the core thickness is increased, the strength is improved, and the blade is not easy to chip.

The end face of the cutter head 20 in the utility model is a plane, and the design of the plane strengthens the centering function, making the centering more stable.

The knife handle 10 and the knife head 20 of the present utility model are integrally formed by cemented carbide and have high rigidity.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. It should be pointed out that for those of ordinary skill in the art, they can also do Several improvements and modifications are made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims (5)

1. a kind of protruding taper is characterized in that: comprise handle of a knife and be arranged on the cutter head of described handle of a knife one end, described cutter head comprises two with the central axis of described handle of a knife as axisymmetric blade, The radius of the blade gradually increases to be equal to the radius of the handle after tapering from the end of the blade toward the handle. 2 . The forming knife for convex taper according to claim 1 , wherein one side of the two blades is provided with a chamfer along its edge. 3 . 3 . The forming knife for convex taper according to claim 2 , wherein the side surfaces of the two blades transition to the handle through arcs. 4 . 4. The forming knife for convex taper according to claim 3, characterized in that: the end surface of the knife head is a plane. 5. The forming knife for convex taper according to claim 4, characterized in that: the knife handle and the knife head are integrally formed of cemented carbide.