CN201405135Y

CN201405135Y - Flexible reamer used for processing starting motor components of automobile

Info

Publication number: CN201405135Y
Application number: CN2009200900052U
Authority: CN
Inventors: 王新乐; 王益慈; 焦晓洛
Original assignee: CHINA LUOYANG GUCHENG MACHINERY Co Ltd
Current assignee: CHINA LUOYANG GUCHENG MACHINERY Co Ltd
Priority date: 2009-05-05
Filing date: 2009-05-05
Publication date: 2010-02-17
Anticipated expiration: 2019-05-05

Abstract

The utility model belongs to a machining tool and provides a flexible reamer used for processing starting motor components of an automobile. The flexible reamer comprises a cutting part 1, a cutter bar 2 and a hilt 3, and the diameter of the cutter bar 2 is smaller than that of the cutting part of the reamer, wherein the diameter of the cutting part 1 is smaller than the length of the reamer being10mm; the diameter of the cutter bar 2 is 0.75-0.6 times that of the cutting part, the diameter of the cutting part 1 is between 10-25mm being the diameter of the reamer; and the diameter of the cutter bar 2 is 0.6-0.4 times that of the cutting part. Joining parts between the cutter bar 2 and the cutting part 1 and between the cutter bar 2 and the hilt 3 are provided with an arc. The cutter bar has flexibility, thus avoiding the phenomenon that the cutting edge of the original reamer does not totally participate in cutting in processing course. All the cutting edges of the reamer are abradeduniformly, thus improving the processing quality, prolonging the service life of the cutter and saving cost.

Description

A kind of flexible reamer that is used for processing automobile starter motor parts

Technical field

The utility model belongs to machine tool, mainly proposes a kind of flexible reamer that is used for processing automobile starter motor parts.

Background technology

Reamer as the endoporus finisher in hole processing particularly the aperture manufacture field be used widely, particularly in production in enormous quantities, more can show its unrivaled superiority.Reamer is made up of cutting tip, knife bar, handle of a knife, and the mill foremost of reamer cutting tip has the basil, and the handle of a knife clamping is on lathe.Common reamer has high-speed reamer, carbide inserts sword reamer, solid carbide reamer, band coating carbide-tipped reamer etc., reamer can be divided into straight shank reamer, taper-shank reamer by handle of a knife, and we can select suitable reamer to process according to actual needs.The advantage that reamer has has:

Stock-removing efficiency height, efficient are more than several times of boring processing or Vehicle Processing.Machining accuracy height, machining accuracy can reach 6 grades even higher.

Machined surface roughness is little, machined surface roughness Ra≤0.8 μ m.

In reamer manufacturing and application process, to reamer with and the requirement that attaches all very strict, must be coaxial as Tool in Cutting part and handle of a knife sharpening, the attaching of cutter clamping hole and clamping connecting portion beated and will be controlled at according to the required precision in processed hole in 1/2 even the littler scope of hole precision, what the required precision in processed hole was high must use high-precision attaching, and also will proofread and correct and trial cut work after the cutter clamping is finished.Because the clamping of the sharpening of cutter and cutter is beated and can not be reached the perfect condition of not beating, like this since existing reamer in process, certainly exist following problem:

Single or two cutting edge processing capacities are big and other several cutting edge processing capacities are less or the basic phenomenon of just participating in cutting of indivedual cutting edges is arranged, cause bigger single of reamer processing capacity or two the cutting edge wearing and tearing are very fast and other several sharpenings decrease slow or not wearing and tearing;

Because the cutting edge of reamer does not all participate in cutting, cause processed hole surface roughness also must participate in the cutting state surface roughness height of processing down than all cutting edges;

After the reamer clamping is finished, for guaranteeing to process qualified product, the plenty of time must be spent and energy carries out centering, thereby production efficiency is lower.

Summary of the invention

The purpose of this utility model is to propose a kind of flexible reamer that is used for processing automobile starter motor parts, makes it have that finished surface is bright and clean, working (machining) efficiency is high, long-lived characteristics.

The utility model is finished the technical scheme that its invention task takes: a kind of flexible reamer that is used for processing automobile starter motor parts, and it comprises cutting tip, knife bar and handle of a knife; Its diameter of described knife bar is less than the diameter of reamer cutting tip, wherein, the cutting tip diameter is less than the reamer of 10mm, the knife bar diameter is 0.6～0.75 times of cutting tip diameter, the reamer of cutting tip diameter between 10～25mm, the knife bar diameter is 0.4～0.6 times of cutting tip diameter, and the knife bar diameter makes reamer have flexibility guaranteeing that knife bar can bear under the prerequisite of Tool in Cutting torsion.

Have circular arc at knife bar and cutting tip and knife bar and handle of a knife handing-over position, concentrate to avoid stress.

The utility model knife bar attenuates and has flexibility, thereby make it in process, can make cutting edge all participate in cutting by free floating, it is single or two cutting edge processing capacities are big and the less or indivedual cutting edges of other cutting edge processing capacity do not participate in cutting phenomenon in process to have overcome original reamer, all cutting edge wearing and tearing of reamer evenly, thereby prolonged the service life of cutter, provided cost savings; Because cutting edge all participates in cutting, the fineness of processed hole surface is good, and the crudy of part is good; Capable of direct processing after the reamer clamping is finished, precision can guarantee, thereby saved the non-cutting time in the fraising process, improved efficient.

Description of drawings

Fig. 1 is the utility model embodiment 1 structural representation.

Fig. 2 is the utility model embodiment 2 structural representations.

Among the figure: 1, cutting tip, 2, knife bar, 3, handle of a knife.

The specific embodiment

The embodiment that provides is in conjunction with the accompanying drawings further specified the utility model:

As shown in Figure 1 and Figure 2, the utility model comprises cutting tip 1, knife bar 2 and handle of a knife 3, described knife bar 2 its diameters are less than the diameter of reamer cutting tip 1, make the reamer work in-process produce ff with the hole according to the pliability of processed hole site by knife bar.Referring to Fig. 1, the utility model is for the reamer of cutting tip diameter less than 10mm, and knife bar 2 diameters are 0.6～0.75 times of cutting tip 1 diameter; Among this embodiment, the cutting tip diameter is 8mm, and knife bar 2 diameters are 5,5mm.Referring to Fig. 2, the reamer of cutting tip diameter between 10～25mm, knife bar 2 diameters are 0.4～0.6 times of cutting tip 1 diameter; Among this embodiment, the cutting tip diameter is 18mm, and knife bar 2 diameters are 9mm; Make reamer have flexibility, thereby realize reamer cutting tip free floating, further, make cutting edge all participate in cutting and improve crudy; Have circular arc at knife bar 2 and cutting tip 1 and knife bar 2 with handle of a knife 3 handing-over positions, concentrate to avoid stress.Reamer generally is used for fine finishining, and man-hour Tool in Cutting amount is little adding, and the cutting ability of cutter can not change yet in working angles.

Claims

1, a kind of flexible reamer that is used for processing automobile starter motor parts, it comprises cutting tip (1), knife bar (2) and handle of a knife (3); It is characterized in that: its diameter of described knife bar (2) is less than the diameter of reamer cutting tip, wherein, cutting tip (1) diameter is less than the reamer of 10mm, knife bar (2) diameter is 0.6～0.75 times of cutting tip diameter, the reamer of cutting tip (1) diameter between 10～25mm, knife bar (2) diameter are 0.4～0.6 times of cutting tip diameter.

2, according to the described a kind of flexible reamer that is used for processing automobile starter motor parts of claim 1, it is characterized in that: have circular arc with handle of a knife (3) handing-over position at knife bar (2) and cutting tip (1) and knife bar (2).