CN103128520A - Machining method of deep-hole alloy reamer - Google Patents

Abstract

The invention relates to a machining method of a deep-hole alloy reamer. The machining method utilizes the steps of firstly milling an inclined platform and then drilling an inclined hole and guarantees the size precision of the inclined hole. Meanwhile, the step of multiple times of rough grinding and finished grinding at each angle of an alloy blade guarantees the size precision of the alloy blade. The machining method of the deep-hole alloy reamer not only improves production efficiency, largely reduces the occurrence of unqualified products, saves outsourcing cost, and shortens the production cycle.

Description

The processing method of deep hole alloy reamer

Technical field

The present invention relates to a kind of processing method of deep hole alloy reamer, belong to field of machining.

Background technology

In the aviation production of units, a kind of most popular outside chip removal deep hole drill that is is arranged, the characteristics of this depth drill are the common fluted drill that working portion is lengthened.For the depth twist drill of diameter greater than 30 millimeters, cooling in order to be beneficial to, mill two the spiral helicine sulculuses in place at the back of bit edge lobe, with epoxy resin, plastic flexible pipe is bonded in groove, high-pressure coolant is transported to cutting edge from shank, but the difficulty of processing of this depth drill is larger from plastic flexible pipe, result of use is fine, but its difficulty of processing is large, and scrappage is high.

The cutting edge of depth drill is the YS8 carbide bit, 40Cr during cutter hub part material, and the outside dimension of the afterbody trapezoidal thread of T15. alloy reamer is Ф 24mm during the material of guide block part, tolerance is h6, requirement is 0.02mm with respect to the jerk value of basal plane A and basal plane B, and the size of blade cylindrical is 0.015mm with respect to the jerk value of basal plane A and basal plane B.This tool sharpening is complicated, and the arrangement of operation is not scrapped namely causing.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of processing method of deep hole alloy reamer, and the method has not only improved production efficiency, has greatly reduced the appearance of waste product, has saved the outsourcing cost, has shortened the production cycle.

For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of processing method of deep hole alloy reamer is characterized in that comprising the following steps:

1) car moulding: the Cooling Holes Ф 12mm endoporus of subdrilling reamer is to size, lathe tool body Ф 32.8mm cylindrical is to size, the Ф 19mmh6 cylindrical of handle of a knife afterbody and trapezoidal thread cylindrical stay mill 0.5-0.6mm, and rough turn trapezoidal thread stays 0.35-0.45mm, and each chamfering, escape are to requiring size;

2) the E-E section of end mill body end is flat to size;

3) insert groove and the cutter hub blade flute profile of cutter head are carried out milling;

4) join by sliver and mill gathering sill;

5) sloping platform of 30 ° of milling 4-Ф 4mm inclined holes;

6) deburring, frustrate and repair chamfering place relief angle, bore 4-Ф 4mm inclined hole;

7) the reamer integral body tempering heat treatment HRC33-40 that quenches;

8) to sliver and vane body blast;

9) according to drawing welding blade and sliver, guarantee that cylindrical stays mill 0.7-0.8mm;

10) to cutter head carry out blast, the processing of turning blue;

11) grinding center hole and trapezoidal thread;

12) grind off the unnecessary welding slag of blade and sliver place, and the corase grind cutting cone; Corase grind alloy blade relief angle is stayed the 0.5-0.7mm surplus;

13) corase grind alloy blade cylindrical and sliver cylindrical stay mill amount 0.25-0.35mm; Further corase grind alloy blade relief angle is stayed the 0.2mm surplus;

14) slightly finish grind alloy blade everywhere anterior angle to size;

15) adopt and to align the method that reamer afterbody centre bore positions, make limited block be arranged on localization method between two adjacent alloy blades, then the cylindrical of outer mill Ф 19mmh6 and trapezoidal thread cylindrical are to the figure paper size;

16) the finish turning trapezoidal thread is to size;

17) correct grinding alloy blade blade cylindrical and guide block cylindrical, reserve 0.1mm allowance;

18) further finish grind alloy blade blade cylindrical and anti-tapering to size, mill guide block cylindrical is to dimensional requirement;

19) correct grinding alloy blade everywhere after the angle sections relief angle to dimensional requirement;

20) grind the cutting cone intersection point with oilstone and become R0.2-0.3mm.

This deep hole alloy reamer adopts above-mentioned step to realize that successfully cutter one end has alloy blade, and the other end has the procedure of processing of trapezoidal thread; Utilized and first milled sloping platform in the step of rat holing, guaranteed the dimensional accuracy of inclined hole; Each angle of alloy blade is carried out corase grind repeatedly simultaneously, then the step of correct grinding, guarantees the dimensional accuracy of alloy blade; This deep hole alloy reamer adopts above-mentioned steps not only to improve production efficiency, has reduced greatly the appearance of waste product, and has shortened the cycle of producing, and has improved the economic benefit of company.

Description of drawings

Fig. 1 is the structural representation of deep hole alloy reamer

Fig. 2 is the processing dimension front view of deep hole alloy reamer.

Fig. 3 is the left view of the processing dimension of deep hole alloy reamer.

Fig. 4 is the E-E cutaway view of Fig. 2.

Fig. 5 is the partial enlarged drawing of alloy blade in Fig. 1.

Fig. 6 is the A-A cutaway view of Fig. 5.

Wherein 1, centre bore; 2, alloy blade; 3, cutter head; 4, sliver; 5, cutter hub; 6, trapezoidal thread; 7, handle of a knife; 8, Cooling Holes; 9, cutting cone; 10, sloping platform; 11, anti-tapering; 12, gathering sill.

The specific embodiment

To shown in Figure 6, a kind of processing method of deep hole alloy reamer comprises the following steps as Fig. 1:

1) car moulding: the Cooling Holes Ф 12mm endoporus of subdrilling reamer is to size, lathe tool body Ф 32.8mm cylindrical is to size, the Ф 19mmh6 cylindrical of handle of a knife afterbody and trapezoidal thread cylindrical stay mill 0.5-0.6mm, and rough turn trapezoidal thread stays 0.35-0.45mm, and each chamfering, escape are to requiring size;

2) the E-E section of end mill body end is flat to size, as shown in Figure 3;

3) insert groove and the cutter hub blade flute profile of cutter head are carried out milling, so that lay alloy blade in insert groove;

4) join by sliver and mill gathering sill;

5) sloping platform of 30 ° of milling 4-Ф 4mm inclined holes is so that 4-Ф 4mm inclined hole drills through in the plane;

6) deburring, frustrate and repair chamfering place relief angle, bore 4-Ф 4mm inclined hole;

7) the reamer integral body tempering heat treatment HRC33-40 that quenches;

8) to sliver and vane body blast;

9) according to drawing welding blade and sliver, guarantee that cylindrical stays mill 0.7-0.8mm;

10) to cutter head carry out blast, the processing of turning blue;

11) grinding center hole and trapezoidal thread;

12) grind off the unnecessary welding slag of blade and sliver place, and the corase grind cutting cone; Corase grind alloy blade relief angle is stayed the 0.5-0.7mm surplus;

13) corase grind alloy blade cylindrical and sliver cylindrical stay mill amount 0.25-0.35mm; Further corase grind alloy blade relief angle is stayed the 0.2mm surplus, and twice corase grind alloy blade relief angle makes it reach required precision;

14) slightly finish grind alloy blade everywhere anterior angle to size;

15) adopt the method that reamer afterbody centre bore positions that aligns, make limited block be arranged on localization method between two adjacent alloy blades, then the cylindrical of outer mill Ф 19mmh6 and trapezoidal thread cylindrical are to the figure paper size, this location not only makes axis location, and the reamer integral body in the assurance process do not rotate, and simultaneously the alloy blade that processes do not produced destructive clamping;

16) the finish turning trapezoidal thread is to size;

17) correct grinding alloy blade blade cylindrical and guide block cylindrical, stay 0.1mm allowance;

18) further finish grind alloy blade blade cylindrical and anti-tapering to size, mill guide block cylindrical is to dimensional requirement;

19) correct grinding alloy blade everywhere after the angle sections relief angle to dimensional requirement;

20) grind the cutting cone intersection point with oilstone and become R0.2-0.3mm.

Claims (1)

1. the processing method of a deep hole alloy reamer is characterized in that comprising the following steps:

1) car moulding: the Cooling Holes Ф 12mm endoporus of subdrilling reamer is to size, lathe tool body Ф 32.8mm cylindrical is to size, the Ф 19mmh6 cylindrical of handle of a knife afterbody and trapezoidal thread cylindrical stay mill 0.5-0.6mm, and rough turn trapezoidal thread stays 0.35-0.45mm, and each chamfering, escape are to requiring size;

2) the E-E section of end mill body end is flat to size;

3) insert groove and the cutter hub blade flute profile of cutter head are carried out milling;

4) join by sliver and mill gathering sill;

5) sloping platform of 30 ° of milling 4-Ф 4mm inclined holes;

6) deburring, frustrate and repair chamfering place relief angle, bore 4-Ф 4mm inclined hole;

7) the reamer integral body tempering heat treatment HRC33-40 that quenches;

8) to sliver and vane body blast;

9) according to drawing welding blade and sliver, guarantee that cylindrical stays mill 0.7-0.8mm;

10) to cutter head carry out blast, the processing of turning blue;

11) grinding center hole and trapezoidal thread;

12) grind off the unnecessary welding slag of blade and sliver place, and the corase grind cutting cone; Corase grind alloy blade relief angle is stayed the 0.5-0.7mm surplus;

13) corase grind alloy blade cylindrical and sliver cylindrical stay mill amount 0.25-0.35mm; Further corase grind alloy blade relief angle is stayed the 0.2mm surplus;

14) slightly finish grind alloy blade everywhere anterior angle to size;

15) adopt and to align the method that reamer afterbody centre bore positions, make limited block be arranged on localization method between two adjacent alloy blades, then the cylindrical of outer mill Ф 19mmh6 and trapezoidal thread cylindrical are to the figure paper size;

16) the finish turning trapezoidal thread is to size;

17) correct grinding alloy blade blade cylindrical and guide block cylindrical, stay 0.1mm allowance;

18) further finish grind alloy blade blade cylindrical and anti-tapering to size, mill guide block cylindrical is to dimensional requirement;

19) correct grinding alloy blade everywhere after the angle sections relief angle to dimensional requirement;

20) grind the cutting cone intersection point with oilstone and become R0.2-0.3mm.

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