CN103084665A

CN103084665A - Gun reamer

Info

Publication number: CN103084665A
Application number: CN2013100376890A
Authority: CN
Inventors: 张鹏飞; 王波; 岳鹏; 苗涛
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2013-05-08

Abstract

The invention discloses a gun reamer which comprises a reamer body which is formed by sequentially arranging a reamer head, a neck portion and a handle portion in a front-and-rear mode. A blade is arranged on the reamer head, and the reamer body is provided with a center water injection hole which sequentially penetrates through the reamer head, the neck portion and the handle portion. A plug block is arranged in the front end of the center water injection hole, and water outlets are sequentially and axially arranged from the reamer head to the neck portion at intervals. One ends of the water outlets are communicated with the center water injection hole, and the other ends of the water outlets are led to the surface of an outer circle of the reamer head or the surface of the outer circle of the neck portion. The gun reamer is characterized in that the water outlets are arranged by surrounding the circumference of the center water injection hole simultaneously at intervals. According to the gun reamer, the surface smoothness of a machined hole can be enhanced.

Description

The rifle reamer

Technical field

The present invention relates to a kind of rifle reamer.

Background technology

The rifle reamer has one or more cutter tooth, and the rifle reamer is used for the hole after drilling (or reaming) processing on the ream workpiece, is mainly in order to improve the machining accuracy in hole, to reduce the roughness of hole surface, and general allowance is less.But existing rifle reamer is because the apopore utilization rate is low, and smear metal easily accumulates at working surface, is unfavorable for improving machining quality and working (machining) efficiency and workpiece quality, has productivity effect low, crudy is low, and cutter life is short, the vibrative shortcoming of working angles.

Summary of the invention

The purpose of this invention is to provide a kind of rifle reamer that strengthens processed hole surface fineness.

For achieving the above object, the present invention adopts following technical scheme: a kind of rifle reamer, comprise by setting gradually the cutter hub that forms before and after cutter head, neck and shank, cutter head is provided with blade, cutter hub is provided with the central water flooding hole of running through successively cutter head, neck and shank, establish sprue in the front end in central water flooding hole, axially spaced-apart is provided with apopore successively from cutter head to neck, the outer surface that apopore one end is connected with the central water flooding hole, the other end leads to cutter head or the outer surface of neck, described apopore arrange around central water flooding hole circumferential interval simultaneously.

Described apopore is oblique straight hole, and the end that apopore is communicated with the central water flooding hole is the rear end of this apopore.

The neck rear end is provided with the V-arrangement projection, and the front end correspondence of shank is provided with the v-depression adaptive with the V-arrangement convex shape, the V-arrangement projection of neck rear end and the v-depression butt welding of shank forward end, the V-arrangement angle of described V-arrangement projection be 109 ° 30 '-110 ° 30 ' between.

The side of described shank rear end is provided with rises as high as the banks, and rises as high as the banks to be become the tapered plane of obtuse angle angle to consist of with the baseplane with one by axially extended baseplane, and the shank rear end part at the place of rising as high as the banks consists of platform.

The relief angle of the cutter head end tooth that is made of blade is 6 °.

Described central water flooding bore dia is 5mm.

Cutter head and neck are the integral type structure, and the cutter hub outer surface is provided with the axially extended sliver that extends to the neck rear end from cutter head.

Rifle reamer of the present invention, have following beneficial effect: apopore is set to Spiral distribution, has improved the apopore utilization ratio, prevents that smear metal from accumulating at working surface, thereby improves machining quality and working (machining) efficiency and workpiece quality.Relief angle changes 6 ° into by 9 ° that have the rifle reamer now, can eliminate vibration, guarantees the concentricity in hole.Interior cold hole changes φ 5 into by φ 3 makes cooling effect more abundant, has improved the surface quality of machining hole.Shank arranges platform, to increase the power of stepping up of cutter, makes reamer not produce rotating relative to gripping sleeve.Rifle reamer of the present invention has advantages of the surface smoothness that strengthens machining hole, and its linearity, axiality is high, durability is high, and precision is good, can repeat reconditioning, has extended cutting-tool's used life, thereby has reduced production cost to the client.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the left view of Fig. 1.

The specific embodiment

By a kind of rifle reamer illustrated in figures 1 and 2, the Double-Edge Gun Drills cutter that described rifle reamer is φ 18, comprise by cutter head 12, neck 4 and shank 7 front and back and set gradually the cutter hub that forms, cutter head 12 and neck 4 is carbide alloy for integral type structure and cutter head 12 and neck 4 materials, shank 7 materials are 9SiCr, cutter head 12 is provided with two blades 11, and described two blades 11 are arranged at respectively in two cutter grooves 10 on cutter head 12.The relief angle of the cutter head end tooth that is made of blade 11 is 6 °.Surface, cutter hub outer ring is provided with the axial sliver 5 that extands rearward to neck 4 rear ends from cutter head 12.

Cutter hub is provided with the axial central water flooding hole 3 of running through successively cutter head 12, neck 4 and shank 7, central water flooding hole 3 foremost in establish sprue 1, described central water flooding hole 3 diameters are 5mm.4 are interval with apopore 2 before and after axially successively from cutter head 12 to neck, and described apopore 2 is simultaneously around central water flooding hole 3 circumferential interval settings, and namely all apopores 2 are arranged on cutter hub for being from front to back zigzag shape.Apopore 2 arranges eight altogether, described apopore 2 one ends and central water flooding hole 3 is communicated with, the other end leads to cutter head 12 surface, outer ring or the surface, outer ring of neck 4, and when apopore 2 was positioned at cutter head, the surface, outer ring of cutter head 12 was led in the end of this apopore 2; When apopore 2 was positioned at neck 4, the surface, outer ring of neck 4 was led in the end of this apopore 2.Apopore 2 is oblique straight hole, and the end that apopore 2 is communicated with central water flooding hole 3 is the rear end of this apopore 2.Because sprue 1 is plugged in central water flooding hole 3 foremost, the cooling water that flows to from center water injection hole 3 can only flow out from apopore 2.

Described neck 4 rear ends are provided with rearwardly projecting V-arrangement projection 6, the front end correspondence of shank 7 is provided with the v-depression adaptive with V-arrangement projection 6 shapes, described V-arrangement projection 6 can obtain by the method for removing cutter head 12 rear end side material along two inclined-planes, the v-depression butt welding of the V-arrangement of neck 4 rear ends projection 6 and shank 7 front ends, the V-arrangement angle of described V-arrangement projection 6 is 110 °.Certainly, the present invention is not limited to above-mentioned form, the V-arrangement angle of V-arrangement projection 6 rear ends can be 109 ° 30 '-110 ° 30 ' between arbitrarily angled value.

The side of described shank 7 rear ends is provided with rises as high as the banks, and the baseplane 9 of being extended by axial front and back of rising as high as the banks consists of with a tapered plane 8 with the 9 one-tenth obtuse angle angles in baseplane, and shank 7 rear end parts at the place of rising as high as the banks consist of platform.Described tapered plane 8 and cutter hub axis angle at 45 °.This is risen as high as the banks and also obtains at shank 7 rear ends removal materials for passing through.

Rifle reamer of the present invention, apopore 2 is set to Spiral distribution, has improved apopore 2 utilization ratios, prevents that smear metal from accumulating at working surface, thereby improves machining quality and working (machining) efficiency and workpiece quality.Cutter head end tooth relief angle is 6 °, can eliminate vibration, guarantees the concentricity in hole.In cold hole---central water flooding hole 3 makes cooling effect more abundant for φ 5, has improved the surface quality of machining hole.Shank 7 arranges platform, to increase the power of stepping up of cutter, makes reamer not produce rotating relative to gripping sleeve.

Claims

1. rifle reamer, comprise by setting gradually the cutter hub that forms before and after cutter head, neck and shank, cutter head is provided with blade, cutter hub is provided with the central water flooding hole of running through successively cutter head, neck and shank, establish sprue in the front end in central water flooding hole, axially spaced-apart is provided with apopore successively from cutter head to neck, the surface, outer ring that apopore one end is connected with the central water flooding hole, the other end leads to cutter head or surface, the outer ring of neck is characterized in that: described apopore arranges around central water flooding hole circumferential interval simultaneously.

2. rifle reamer as claimed in claim 1, it is characterized in that: described apopore is oblique straight hole, the end that apopore is communicated with the central water flooding hole is the rear end of this apopore.

3. rifle reamer as claimed in claim 1 or 2, it is characterized in that: the neck rear end is provided with the V-arrangement projection, the front end correspondence of shank is provided with the v-depression adaptive with the V-arrangement convex shape, the v-depression butt welding of the V-arrangement of neck rear end projection and shank forward end, the V-arrangement angle of described V-arrangement projection be 109 ° 30 '-110 ° 30 ' between.

4. rifle reamer as claimed in claim 3 is characterized in that: the side of described shank rear end is provided with rises as high as the banks, and rising as high as the banks is become the tapered plane of obtuse angle angle to consist of with the baseplane with one by axially extended baseplane, and the shank rear end part at the place of rising as high as the banks consists of platform.

5. rifle reamer as claimed in claim 4 is characterized in that: the relief angle of the cutter head end tooth that is made of blade is 6 °.

6. rifle reamer as claimed in claim 5, it is characterized in that: described central water flooding bore dia is 5mm.

7. rifle reamer as claimed in claim 6, it is characterized in that: cutter head and neck are the integral type structure, surface, cutter hub outer ring is provided with from cutter head extends backward axial sliver to the neck rear end.