CN113427056A

CN113427056A - Inner-cooling type spiral blade drilling and reaming forming alloy cutter

Info

Publication number: CN113427056A
Application number: CN202110724460.9A
Authority: CN
Inventors: 刘新平; 吴乐; 张红兵; 王建锋
Original assignee: Hebei Gaogong Tool Co ltd
Current assignee: Hebei Gaogong Tool Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-09-24

Abstract

The invention relates to an internal-cooling type spiral blade drilling and reaming forming alloy cutter, which comprises a cutter handle and a cutting blade, wherein the cutter handle is connected with the cutting blade, the cutting blade comprises a drilling blade and a reaming blade, the cross section of the cutter body is of a circular structure, a spiral cooling hole is arranged inside the cutter body, the conveying of cutting fluid during cutting and machining is guaranteed, the cutter body is provided with the blade, the blade comprises the drilling blade and the reaming blade, the drilling blade is arranged at the top end of the cutter, the drilling blade is manufactured according to the technical requirements of drilling, and the reaming blade is annularly arranged on the cutter body, so that the reaming and extrusion machining of a drilled hole is realized. According to the internal-cooling type helical-blade drilling and reaming forming alloy cutter, the process of the precise hole of the hydraulic part is changed into one process from the original four processes of drilling, expanding, reaming and extruding, so that the processing efficiency is improved, the processing equipment is reduced, the processing precision is guaranteed, and the resources are saved.

Description

Inner-cooling type spiral blade drilling and reaming forming alloy cutter

Technical Field

The invention belongs to the technical field of cutting blades, and particularly relates to an inner-cooling type spiral blade drilling and reaming forming alloy cutter.

Background

The machining process of the traditional hydraulic valve part hole generally comprises rough drilling, hole expanding and rough and fine reaming, at least four machining processes are needed, the main cutters are drill bits and reamers, if the hole is deep, multiple times of tool withdrawal and tool feeding are needed in machining so as to remove cuttings and cool the cutters, machining efficiency is low, the machined surface is easily scratched by withdrawing the cutters for multiple times during reaming, quality is difficult to guarantee, and high-speed development of hydraulic part manufacturing industry in China is severely restricted.

Disclosure of Invention

In order to solve the problems, the invention provides an internal-cooling type spiral-blade drilling and reaming alloy cutter which comprises a cutter handle and a cutting blade, wherein the cutter handle is connected with the cutting blade, the cutting blade comprises a cutter body and a blade, the cross section of the cutter body is of a circular structure, the cutter body is provided with the blade, the blade comprises a drilling blade and a hole extruding cutting blade, the drilling blade is arranged at one end, far away from the cutter handle, of the cutter body, the hole extruding cutting blade is annularly arranged on the cutter body, the drilling blade is used for drilling, and the rear half part of the drilling blade is used for rough and fine reaming and hole extruding cutting.

Preferably, the cutter body is made of 42CrMo4 material through heat treatment and surface treatment.

In any of the above embodiments, the drilling blade is preferably made of an alloy material, and the alloy material may be selected from the type YG, YT, or YW depending on the material to be processed.

In any of the above aspects, preferably, a connecting portion is provided between the holder and the cutting edge.

In any of the above aspects, the connection portion is preferably provided with a coolant connection port.

In any one of the above aspects, preferably, a cooling channel is provided in the cutter body, and the cooling channel is connected to the coolant connection port.

In any of the above schemes, preferably, the tool shank is a standard morse taper shank or a non-standard straight shank.

The invention has the beneficial effects that: according to the internal-cooling type helical-blade drilling and reaming forming alloy cutter, machining of the precise hole of the hydraulic part can be completed by three or four original working procedures, so that the machining efficiency is improved, machining equipment is reduced, and resources are saved.

Drawings

FIG. 1 is a schematic view of a preferred embodiment of an internally cooled helical-edged drill-and-ream forming alloy tool according to the invention;

FIG. 2 is a schematic cross-sectional view A-A of the embodiment of FIG. 1 of an internally cooled helical-edged drill-reaming-forming alloy tool according to the invention.

The figures are labeled as follows: 1-a knife handle; 2-a connecting part; 3-a cutting edge; 4-hole-extruding cutting edge; 5-drilling a blade; 6-a reinforcement; 7-coolant connection port; 8-cooling channel.

Detailed Description

In order that the invention may be further understood, the invention will now be described in detail with reference to specific examples.

As shown in fig. 1 and 2, the invention provides an internal-cooling type alloy cutter with a spiral blade for drilling and reaming, which comprises a cutter handle 1 and a cutting blade 3, wherein the cutter handle 1 is connected with the cutting blade 3, the cutting blade 3 comprises a cutter body and a blade, the section of the cutter body is of a circular structure, the cutter body is provided with the blade, the blade comprises a drilling blade 5 and a hole-extruding blade 4, the drilling blade is arranged at one end of the cutter body far away from the cutter handle, the hole-extruding blade 4 is annularly arranged on the cutter body, the drilling blade 5 is used for drilling, the rear half part is used for rough and fine reaming hole-extruding cutting, the cutter body is made of 42CrMo4 material through heat treatment and surface treatment, the drilling blade 5 is made of alloy material, the alloy blade material can be selected from YG, YT or YW types according to the processing material, a connecting part 2 is arranged between the cutter handle 1 and the cutting blade 3, the connecting portion 2 is provided with a cooling liquid connecting port 7, the cutter body is internally provided with a cooling channel 8, the cooling channel 8 is connected with the cooling liquid connecting port 7, and one side of the hole-extruding cutting edge 4 is provided with a reinforcing portion 6.

The tool shank 1 of the invention is a standard Morse taper shank, is suitable for most machine tools, can also customize as the nonstandard straight shank according to the demand, the cutter body of the said cutting blade 3 is 42CrMo4 material through heat treatment and surface treatment, can guarantee the rigidity and intensity of the cutter body and resist abrasion and corrosion, also have good processing performance, the front half of the cutter body is a drilling and reaming hole part, the alloy blade material can choose YG, YT, YW, etc. type according to the processing material, used for drilling processing, the latter half is a rough, fine reaming and squeezing hole cutting blade, because the drilling speed of the front half is higher, the latter half reaming blade is distributed parallel to the axis according to the ordinary reamer, will produce the vibration and tipping while reaming at high speed, adopt the oblique arrangement (the effect of cutting blade and axis included angle is best 2-3 degrees) through the experimental reaming blade can greatly reduce the vibration while reaming and reduce the roughness while reaming, the cutting blade adopts the internal water course of cutter body to cool, the coolant brings the cutting chips out of the machined hole from the chip groove, and in order to smoothly discharge the cutting chips generated during drilling, the sectional area of the chip groove of the reaming part is increased and is communicated with the chip groove of the front end drilling part on the premise of ensuring the integral rigidity of the cutter.

It will be understood by those skilled in the art that the present invention relates to an internally cooled helical-edge drill-and-ream forming alloy tool, which comprises any combination of the above-mentioned summary and detailed description of the invention, and the parts shown in the drawings, and is not described in detail for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an inner-cooling spiral sword drilling and reaming shaping alloy cutter, includes handle of a knife and cutting edge, the handle of a knife is connected with the cutting edge, the cutting edge includes cutter body and cutting edge, the cross-section of cutter body is circular structure, set up the cutting edge on the cutter body, its characterized in that, the cutting edge includes drilling cutting edge and crowded hole cutting edge, the setting of drilling cutting edge is in the cutter body is kept away from the one end of handle of a knife, crowded hole cutting edge encircles and is established on the cutter body.

2. The alloy tool bit with the inner-cooling spiral blade for drilling and reaming formation as claimed in claim 1, wherein the tool body is made of 42CrMo4 material through heat treatment and surface treatment.

3. The alloy tool bit as claimed in claim 1, wherein the drilling blade is made of alloy, and the alloy blade is selected from YG, YT or YW type according to the machining material.

4. The alloy cutter for drilling and reaming with the inner-cooling spiral blade as recited in claim 1, wherein a connecting part is arranged between the cutter handle and the cutting blade.

5. The alloy cutter for internal cooling type helical blade drilling and reaming formation according to claim 4, wherein the connecting portion is provided with a cooling liquid connecting port.

6. The internal cooling type helical blade drilling and reaming molding alloy cutter as claimed in claim 5, wherein a cooling channel is arranged in the cutter body, and the cooling channel is connected with a cooling liquid connecting port.

7. The internal cooling type helical blade drilling and reaming molding alloy cutter as claimed in claim 1, wherein the cutter handle is a standard Morse taper shank or a nonstandard straight shank.