CN219503786U

CN219503786U - Welded PCD end mill capable of increasing milling surface roughness value

Info

Publication number: CN219503786U
Application number: CN202320634775.9U
Authority: CN
Inventors: 刘晓明
Original assignee: SHENZHEN XINYUNXIANG PRECISION CUTTING TOOLS CO Ltd
Current assignee: SHENZHEN XINYUNXIANG PRECISION CUTTING TOOLS CO Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-08-11
Anticipated expiration: 2033-03-28

Abstract

A welded PCD end mill for increasing the roughness value of a milling surface belongs to the technical field of metal cutting. The tooth peak of each cutter tooth is R0.45mm, the tooth valley is R0.45mm, the depth of the cutter tooth is 0.051mm, the tooth peak and the tooth valley are in smooth transition, the distance between the tooth peaks is 0.6mm, the cutter tooth positions of a cutter blade, a second cutter blade and a third cutter blade are staggered, the size of the end face of the first cutter blade is 0.4mm from the first cutter tooth, the size of the end face of the second cutter blade is 0.6mm from the first cutter tooth, and the size of the end face of the third cutter blade is 0.8mm from the first cutter tooth. The utility model obtains the surface quality of the milled part with the roughness value meeting the requirement, can control the roughness value of the surface of the milled part to be in the range of the drawing requirement, and can reach the requirement of customers on the surface quality of the part.

Description

Welded PCD end mill capable of increasing milling surface roughness value

Technical Field

The utility model relates to a welded PCD end mill capable of increasing the roughness value of a milling surface, belonging to the technical field of metal cutting.

Background

In the machining of mechanical parts, in particular in the machining of automotive parts. Some parts have different requirements on the machined surface roughness values due to different assembly requirements, and some parts have high requirements on the machined surface quality, for example, the higher the machined surface finish is, the better the machined surface is, but the less the surface finish is required to be polished, and the surface roughness is required to be rough. The surface milled out of these parts is rough and not too shiny as shown in the part machining schematic of fig. 1.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a welded PCD end mill for increasing the roughness value of a milling surface.

The utility model provides an increase milling surface roughness value's welded PCD end mill, cutter arbor coupling head, the cutter blade is connected respectively to the cutter blade, the cutter blade has the knife tip circular arc, the cutter blade includes first cutter blade, second cutter blade and third cutter blade, there is the cutter tooth in the outside of first cutter blade, second cutter blade and third cutter blade respectively, the tooth peak of every cutter tooth is R0.45mm, the tooth valley is R0.45mm, the degree of depth of cutter tooth is 0.051mm, tooth peak and tooth valley smooth transition, the distance between the tooth peak is 0.6mm, the cutter tooth position of a cutter blade, the cutter tooth peak of second cutter blade and third cutter blade is 0.2mm apart from each other, cutter tooth peak looks at 0.011mm has the cutter mark of first cutter blade, the terminal surface of first cutter tooth is 0.4mm apart from the size of first cutter tooth, the terminal surface of second cutter blade is 0.6mm apart from the size of first cutter tooth, the terminal surface of third cutter blade is 0.8mm apart from the size of first cutter tooth.

The cutter arbor and tool bit structure as an organic whole, first cutter blade have 36 cutter teeth, and second cutter blade and third cutter blade have 36 cutter teeth respectively, and the cutter tooth length of first cutter blade is 21.6mm, and the cutter tooth length of second cutter blade and the cutter tooth length of third cutter blade are 21mm respectively.

The utility model has the advantages that the surface quality of the milled part with the roughness value meeting the requirement can be obtained efficiently and stably, the roughness value of the surface of the milled part can be controlled within the range of the drawing requirement, and the requirement of customers on the surface processing quality of the part can be met.

Drawings

The utility model, together with a further understanding of the many of its attendant advantages, will be best understood by reference to the following detailed description, when considered in conjunction with the accompanying drawings, which are included to provide a further understanding of the utility model, and the accompanying drawings, illustrate and describe the utility model and do not constitute a limitation to the utility model, and wherein:

FIG. 1 is a schematic illustration of part processing.

Fig. 2 is a schematic structural view of the present utility model.

Fig. 3 is a side view of the present utility model.

Fig. 4 is a dimensional view of each tooth of the present utility model.

Fig. 5 is a partial view of a cutter tooth according to the present utility model.

Fig. 6 is a position diagram of the end mill of the present utility model when each tooth is in operation.

FIG. 7 is a schematic view of a surface being machined using the present utility model.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

It will be apparent that many modifications and variations are possible within the scope of the utility model, as will be apparent to those skilled in the art based upon the teachings herein.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection (welding, riveting and bolting) or electric connection; can be directly connected or indirectly connected through an intermediate device, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood by those skilled in the art that all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art unless defined otherwise.

Example 1: as shown in fig. 2, 3, 4, 5, 6 and 7, a welded PCD end mill for increasing the roughness value of a milling surface is provided, a cutter bar 1 is connected with a cutter head 2, the cutter head 2 is respectively connected with a cutter blade 3, the cutter blade 3 is provided with a cutter tip arc 7, the cutter tip arc 7 is R0.3mm, the cutter blade 3 comprises a first cutter blade 4, a second cutter blade 5 and a third cutter blade 6, cutter teeth are respectively arranged on the outer sides of the first cutter blade 4, the second cutter blade 5 and the third cutter blade 6, as shown in fig. 5, the tooth peak of each cutter tooth is R0.45mm, the tooth valley is R0.45mm, the depth of the cutter tooth is 0.051mm, the tooth peak and the tooth valley are in smooth transition, the distance between the tooth peaks is 0.6mm, as shown in fig. 6, the cutter tooth positions of the first cutter blade 4, the second cutter blade 5 and the third cutter blade 6 are staggered, the distance between the peaks of the first cutter blade 4, the second cutter blade 5 and the third cutter blade 6 is 0.2mm, the peaks of the cutter teeth are staggered by 0.011mm, as shown in fig. 7, the machining surface of the machined workpiece is 0.011mm, the distance between the peaks of the machining surface of the machined workpiece is 0.2mm, the size of the end face of the first cutter blade 4 from the first cutter tooth is 0.4mm, the size of the end face of the second cutter blade 5 from the first cutter tooth is 0.6mm, the size of the end face of the third cutter blade 6 from the first cutter tooth is 0.8mm, the first cutter blade 4 has 36 cutter teeth, the second cutter blade 5 and the third cutter blade 6 have 36 cutter teeth respectively, the cutter tooth length of the first cutter blade 4 is 21.6mm, and the cutter tooth length of the second cutter blade 5 and the cutter tooth length of the third cutter blade 6 are 21mm respectively.

Because the processed part is made of aluminum alloy, polycrystalline diamond, namely PCD, is suitable for the cutting edge material of the cutter head 2 in order to improve the durability of the end mill; the outer diameter of the end mill is smaller, in order to enhance the rigidity of the end mill, the cutter bar 1 and the cutter head 2 are of an integral structure, a hard alloy cutter body is selected as the integral structure, and PCD of the cutter head 2 is welded on the hard alloy cutter body in a high-frequency welding mode.

The roughness of the surface of the part is worth, namely the height of the residual area after the surface of the part is processed, namely the average value of high points (tool marks) and low points (tool marks). This value is large, indicating that the part surface is rough; this value is small, indicating that the surface finish of the part is high.

In operation of the end mill, the tooth profiles of the first, second and third milling blades 4, 5 and 6 are offset from each other, the distance between adjacent peaks is 0.2mm, and the height of the residual area (tool mark) is 0.011 mm.

As described above, the embodiments of the present utility model have been described in detail, but it will be apparent to those skilled in the art that many modifications can be made without departing from the spirit and effect of the present utility model. Accordingly, such modifications are also entirely within the scope of the present utility model.

Claims

1. The welded PCD end mill is characterized in that a cutter bar is connected with a cutter head, the cutter head is respectively connected with cutter blades, the cutter blades are provided with cutter point arcs, each cutter blade comprises a first cutter blade, a second cutter blade and a third cutter blade, cutter teeth are respectively arranged on the outer sides of the first cutter blade, the second cutter blade and the third cutter blade, the tooth peak of each cutter tooth is R0.45mm, the tooth valley is R0.45mm, the depth of each cutter tooth is 0.051mm, the tooth peaks and the tooth valleys are in smooth transition, the distance between the tooth peaks is 0.6mm, the cutter tooth peaks of the first cutter blade, the second cutter blade and the third cutter blade are staggered from each other by 0.2mm, the cutter tooth peaks of the cutter teeth are staggered by 0.011mm, the end face of the first cutter blade is 0.4mm away from the first cutter tooth, the end face of the second cutter blade is 0.6mm away from the first cutter tooth, and the distance between the end face of the third cutter blade is 0.8mm away from the first cutter tooth.

2. The welded PCD end mill of claim 1, wherein the cutter bar is integrally formed with the cutter head.

3. The welded PCD end mill of claim 1, wherein the first cutter blade has 36 teeth, the second cutter blade and the third cutter blade each have 36 teeth, the first cutter blade has a tooth length of 21.6mm, and the second cutter blade has a tooth length and the third cutter blade has a tooth length of 21mm.