A bimetallic composite structure gear cutter

Abstract

The utility model discloses a bimetallic composite structure car gear cutter belongs to metal cutting tool technical field, including the blade, the cutter tooth body and the connecting layer, the blade is connected with the cutter tooth body through the connecting layer, the utility model discloses, the traditional whole structure's car gear cutter (namely uses the product of one piece high -speed tool steel or powder high -speed steel or hard alloy) is decomposed into two parts, makes the cutter tooth body part in it adopt the alloy tool steel of low price to be made, the blade part adopts the hard alloy material or powder high -speed steel of expensive price to be made, when the blade part is set as hard alloy material, the blade and cutter tooth body are connected through brazing or screw thread connection, when the blade part is set as powder high -speed steel, the blade and cutter tooth body are connected through friction welding and brazing, compared with the whole structure's car gear cutter of this bimetallic composite structure car gear cutter, the consumption of high -speed tool steel is saved 60% 70%, and the manufacturing cost has dropped 30%, and the good steel is fully reflected on the cutting edge.

Description

Technical Field

[0001] This utility model belongs to the field of metal cutting tool technology, specifically relating to a bimetallic composite structure gear cutting tool. Background Technology

[0002] Gear cutting cutters (gear scrapers / gear hobbing cutters) are a new type of cutting tool used to process cylindrical internal gears and external gears, replacing conventional gear cutters. They are widely used in the gear manufacturing industry of automobiles, tractors, machine tools, sewing machines and power tools, and are especially used for internal gear rings of new energy vehicles and internal and external gears without hollow cutters.

[0003] Currently, the gear cutting cutters (scraping cutters / shaping cutters) used in the gear industry both domestically and internationally are all integral structures made of high-speed tool steel or cemented carbide. In practical applications, only 1 / 4 of the total weight of such gear cutting cutters (scraping cutters / shaping cutters) is actually used for cutting and creating value. Therefore, a bimetallic composite structure gear cutting cutter is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a bimetallic composite structure gear cutting tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bimetallic composite turning tooth cutter, comprising a cutting blade, a tooth body, and a connecting layer, wherein the cutting blade is connected to the tooth body through the connecting layer.

[0006] As a preferred embodiment, the blade is made of cemented carbide material or powdered high-speed steel, which is pressed and sintered.

[0007] As a preferred embodiment, the thickness of the blade is set to 1-30 mm.

[0008] As a preferred embodiment, the cutting tooth body is made of alloy tool steel.

[0009] As a preferred embodiment, the connecting layer may be brazed, threaded, or friction welded.

[0010] As a preferred embodiment, the cutting tooth body can be configured as a disc-shaped cutting tooth body, a bowl-shaped cutting tooth body, or a tapered shank cutting tooth body.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention decomposes a traditional integral turning cutter (i.e., a product made of a single piece of high-speed tool steel, powdered high-speed steel, or cemented carbide) into two parts. The cutting tooth body is made of inexpensive alloy tool steel, while the cutting blade is made of expensive cemented carbide or powdered high-speed steel. When the cutting blade is made of cemented carbide, the cutting blade and the cutting tooth body are connected by brazing or threading. When the cutting blade is made of powdered high-speed steel, the cutting blade and the cutting tooth body are connected by friction welding and brazing. Compared with the integral turning cutter, this bimetallic composite turning cutter reduces the amount of high-speed tool steel used by 60%-70% and the manufacturing cost by 30%, fully demonstrating that good steel is used on the cutting edge. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a disc-shaped turning tool with a carbide blade, as described in this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of a bowl-shaped turning tooth cutter with a carbide blade as the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of a tapered shank turning tool with a carbide blade, as described in this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the disc-shaped toothed cutter of this utility model, whose blade is made of powdered high-speed steel.

[0017] Figure 5 This is a schematic diagram of the structure of the bowl-shaped turning tooth cutter of this utility model, whose blade is made of powdered high-speed steel.

[0018] Figure 6 This is a schematic diagram of the structure of a tapered shank gear cutting tool with powdered high-speed steel blades, as described in this utility model.

[0019] In the diagram: 1. Blade; 2. Tooth body; 3. Connecting layer. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figure 1-6This utility model provides a bimetallic composite structure turning tooth cutter, including a cutting blade 1, a tooth body 2 and a connecting layer 3. The cutting blade 1 is connected to the tooth body 2 through the connecting layer 3. The cutting blade 1 is made of cemented carbide material or powder high-speed steel by pressing and sintering. The thickness of the cutting blade 1 is set to 1-30mm. The material of the tooth body 2 is alloy tool steel. The connecting layer 3 can be brazed, threaded or friction welded. The tooth body 2 can be a disc-shaped tooth body 2, a bowl-shaped tooth body 2 or a tapered shank tooth body 2.

[0023] When the blade 1 is made of cemented carbide and is brazed to the tooth body 2 to form a whole, and the tooth body 2 can be set as a disc-shaped tooth body 2, a bowl-shaped tooth body 2 or a tapered shank tooth body 2;

[0024] like Figure 1 As shown, when the cutter body 2 is set as a disc-shaped cutter body 2, the module is within 0.1-10. The rear part of the cutter body 2 has a support surface with a thickness range of 1-30mm. The connection part between the cutter body 2 and the blade 1 is flat. The thickness of the blade 1 is consistent and ranges from 1-30mm.

[0025] like Figure 2 As shown, when the cutter body 2 is set as a bowl-shaped cutter body 2, the module is within 0.1-10. The rear part of the cutter body 2 has a support surface with a thickness range of 1-30mm. The connection part between the cutter body 2 and the blade 1 is flat. The thickness of the blade 1 is consistent and ranges from 1-30mm.

[0026] like Figure 3 As shown, when the cutting tooth body 2 is set as a tapered shank cutting tooth body 2, the module is within 0.1-2, the rear part of the cutting tooth body 2 has a support surface with a thickness range of 1-30mm, the connection part between the cutting tooth body 2 and the blade 1 is flat, and the thickness of the blade 1 is consistent and ranges from 1-30mm.

[0027] When the blade 1 is made of powdered high-speed steel and is connected to the blade body 2 by brazing or friction welding to make it a whole;

[0028] like Figure 4 As shown, when the cutting tooth body 2 is set as a disc-shaped cutting tooth body 2, the module is within 0.1-10. The rear part of the cutting tooth body 2 has a support surface with a thickness range of 1-30mm. The connection part between the cutting tooth body 2 and the blade 1 is flat. The thickness of the blade 1 is consistent and ranges from 1-30mm.

[0029] like Figure 5 As shown, when the cutter body 2 is set as a bowl-shaped cutter body 2, the module is within 0.1-10. The rear part of the cutter body 2 has a support surface with a thickness range of 1-30mm. The connection part between the cutter body 2 and the blade 1 is flat. The thickness of the blade 1 is consistent and ranges from 1-30mm.

[0030] like Figure 6As shown, when the cutting tooth body 2 is set as a tapered shank cutting tooth body 2, the module is within 0.1-2, the rear part of the cutting tooth body 2 has a support surface with a thickness range of 1-30mm, the connection part between the cutting tooth body 2 and the blade 1 is flat, and the thickness of the blade 1 is consistent and ranges from 1-30mm.

[0031] The working principle and usage process of this utility model are as follows: When the blade 1 is made of cemented carbide, the blade 1 and the tooth body 2 are connected by brazing or threading. When the blade 1 is made of powder high-speed steel, the blade 1 and the tooth body 2 are connected by friction welding and brazing.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bimetallic composite turning tooth cutter, comprising a cutting blade (1), a tooth body (2), and a connecting layer (3), characterized in that: The blade (1) is connected to the tooth body (2) through the connecting layer (3); the blade (1) is made of cemented carbide material or powder high-speed steel pressed and sintered; the tooth body (2) is made of alloy tool steel; the connecting layer (3) can be brazed, threaded or friction welded.

2. The bimetallic composite turning tool according to claim 1, characterized in that: The thickness of the blade (1) is set to 1-30 mm.

3. The bimetallic composite turning tool according to claim 1, characterized in that: The cutting tooth body (2) can be configured as a disc-shaped cutting tooth body (2), a bowl-shaped cutting tooth body (2), or a cone-shaped cutting tooth body (2).

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