CN103862082A - Processing method of small threading hole in fastening screw made of high-temperature alloy - Google Patents
Processing method of small threading hole in fastening screw made of high-temperature alloy Download PDFInfo
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- CN103862082A CN103862082A CN201310674529.7A CN201310674529A CN103862082A CN 103862082 A CN103862082 A CN 103862082A CN 201310674529 A CN201310674529 A CN 201310674529A CN 103862082 A CN103862082 A CN 103862082A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/14—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for very small holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a processing method of a small threading hole in a fastening screw made of high-temperature alloy and relates to the processing method of the small threading hole in the fastening screw made of high-temperature alloy materials. By the adoption of the processing method, the problem of lower efficiency in the existing processing method is solved. The processing method comprises the following steps of: clamping the fastening screw into a special clamping apparatus, adjusting the position of a drilling arm of a drilling machine, and enabling a drilling bit to align to a drilling mold hole; selecting the rotating speed of the drilling bit to be 2-12m/min, and adopting manual feeding to finish the processing of the small threading hole. The special clamping apparatus is characterized in that a left sliding block and a right sliding block are arranged in a sliding channel formed by a front pressing plate, a rear pressing plate and a bottom plate; the screwing directions of lead-screw threads at the two sides of the length direction of a lead screw body are opposite and are respectively screwed with thread holes in a left sliding block body and a right sliding block body; a left drilling mold plate is fixed at the top end of the left sliding block; a right drilling mold plate is fixed at the top end of the right sliding block; V-shaped grooves are respectively processed on the end surface of the right end of the left drilling mold plate and the end surface of the left end of the right drilling mold plate; the drilling mold hole is arranged in the upper surface of the right end of the left drilling mold plate and is downwards communicated with the V-shaped grooves.
Description
Technical field
The present invention relates to the processing method of wearing an aperture on the trip bolt of high temperature alloy material.
Background technology
A kind of trip bolt using on steam turbine is the material of high temperature alloy GH2136, GH4698.As depicted in figs. 1 and 2, for anti-loose, on the turret head of trip bolt 52, need processing to wear an aperture 51.High temperature alloy is hard-cutting material, and reason is: (1) plasticity is good, toughness is large, and work hardening is strong, and high temperature alloy intensity is high, and cutting force is large, and cutting temperature is high.Generally, the Unit cutting force of nickel base superalloy is higher by 50% than medium carbon alloy steel, and hardenability can reach 200 to 500%, and the point of a knife of cutter and boundary wear are extremely serious, and the rill wearing and tearing of minor flank also very easily occur.(2) intensified element content is high, forms the hard point such as metal carbide, intermetallic compound that a large amount of abrasivenesses are very strong in alloy, and tool setting has strong scratch effect.(3) smear metal and rake face bonding phenomenon are serious, very easily produce built-up edge, thereby reduce the cutting ability of machined surface quality and cutter, and easily cause tool surface to peel off.(4) thermal conductivity factor is about 1/2～1/5 of 45 steel, poor thermal conductivity, and a large amount of heat in metal cuttings can not spread out of, therefore cutting temperature is high, the cutting edge aggravation of at high temperature wearing and tearing, even loses processing characteristics.(5) smear metal is difficult for curlingly and fracture, and workpiece and cutter easily occur to be wound around and causes and forges a knife.Especially hole processing, the cut-out etc. to sealing and semiclosed appearance bits, easily causes smear metal to stop up, thereby reduces machined surface quality and cutter tipping.
Difficult point in another one process is: boring procedure is to carry out on an inclined-plane, and drill bit easily skids, bores partially and fractures, and prior art adopts manual processing mode, and therefore working (machining) efficiency is lower.
Summary of the invention
The object of this invention is to provide the processing method that a kind of high temperature alloy trip bolt is worn an aperture, to solve the current lower problem of processing method efficiency.It is realized by following step:
One, Specific Clamps is fixed on Drilling machines bench, trip bolt 52 clampings in Specific Clamps, described Specific Clamps comprises base plate 1, leading screw body 2, leading screw axial direction positioning device, left bushing plate 3-1, right bushing plate 3-2, left slider 14, right slide block 7, front pressuring plate 16 and rear fender 17, front pressuring plate 16 is fixed on the front area of base plate 1 upper surface, rear fender 17 is fixed on the Background Region of base plate 1 upper surface, left slider 14 and right slide block 7 are arranged on front pressuring plate 16, between the slideway that rear fender 17 and base plate 1 form and apportion left and right, the middle part of leading screw body 2 by leading screw axial direction positioning device axial location between left slider 14 and right slide block 7, the both sides threads of lead screw rotation direction of leading screw body 2 length directions is contrary, the both sides of leading screw body 2 length directions respectively with left slider 14 and right slide block 7 entities in screwed hole screw, left bushing plate 3-1 is fixed on the top of left slider 14, right bushing plate 3-2 is fixed on the top of right slide block 7, on the right-hand member end face of left bushing plate 3-1 and on the left end end face of right bushing plate 3-2, be processed with respectively " V " shape groove, described " V " shape groove along continuous straight runs extends, angle between two faces of formation " V " shape of described " V " shape groove is 120 degree, on the right-hand member upper surface of left bushing plate 3-1, have drill jig hole 3-3, drill jig hole 3-3 connects with " V " shape groove vertically downward,
Two, adjust the drill boom position of drilling machine, make drill bit aim at drill jig hole 3-3;
Three, selecting drill speed is 2-12m/min, and hand feed completes the processing of wearing an aperture.
Due to processing method of the present invention, adopt Specific Clamps, drill jig and fixture are integrated, and clamping location is very convenient, solves the current lower problem of processing method efficiency.The problems such as this structure can overcome drill slipping effectively, bore partially, fracture.In addition, the machined parameters of choosing has effectively overcome the unmanageable problem of high temperature alloy material.
Accompanying drawing explanation
Fig. 1 is the structural representation of wearing an aperture 51 that the present invention processes, and Fig. 2 is the side view of Fig. 1, and Fig. 3 is the structural representation of Specific Clamps used in the present invention, and Fig. 4 is the side view of Fig. 3.
The specific embodiment
The specific embodiment one: illustrate present embodiment below in conjunction with Fig. 1 to Fig. 4.Present embodiment realizes by following step: one, Specific Clamps is fixed on Drilling machines bench, trip bolt clamping in Specific Clamps, described Specific Clamps comprises base plate 1, leading screw body 2, leading screw axial direction positioning device, left bushing plate 3-1, right bushing plate 3-2, left slider 14, right slide block 7, front pressuring plate 16 and rear fender 17, front pressuring plate 16 is fixed on the front area of base plate 1 upper surface, rear fender 17 is fixed on the Background Region of base plate 1 upper surface, left slider 14 and right slide block 7 are arranged on front pressuring plate 16, between the slideway that rear fender 17 and base plate 1 form and apportion left and right, the middle part of leading screw body 2 by leading screw axial direction positioning device axial location between left slider 14 and right slide block 7, the both sides threads of lead screw rotation direction of leading screw body 2 length directions is contrary, the both sides of leading screw body 2 length directions respectively with left slider 14 and right slide block 7 entities in screwed hole screw, left bushing plate 3-1 is fixed on the top of left slider 14, right bushing plate 3-2 is fixed on the top of right slide block 7, on the right-hand member end face of left bushing plate 3-1 and on the left end end face of right bushing plate 3-2, be processed with respectively " V " shape groove, described " V " shape groove along continuous straight runs extends, angle between two faces of formation " V " shape of described " V " shape groove is 120 degree, on the right-hand member upper surface of left bushing plate 3-1, have drill jig hole 3-3, drill jig hole 3-3 connects with " V " shape groove vertically downward, on the left end upper surface of right bushing plate 3-2, have drill jig hole 3-4, drill jig hole 3-4 connects with " V " shape groove vertically downward.So arrange, when work, use can be arbitrarily replaced in two drill jig holes.
When clamping trip bolt 52, rotating threaded shaft body 2, because the both sides threads of lead screw rotation direction of leading screw body 2 length directions is contrary, left slider 14 and right slide block 7 rightabouts motion or slide in opposition.In the time of left slider 14 and right slide block 7 move toward one another just clamping the turret head part of trip bolt 52 in the middle of two " V " shape grooves.
Two, adjust the drill boom position of drilling machine, make drill bit aim at drill jig hole 3-3;
Three, selecting drill speed is 2-12m/min, and hand feed completes the processing of wearing an aperture.
The specific embodiment two: illustrate present embodiment below in conjunction with Fig. 3.Present embodiment also comprises ball handle 8 with respect to embodiment one Specific Clamps, and ball handle 8 is fixed on the end, one end of leading screw body 2.So arrange, utilize ball handle 8 rotating threaded shaft body 2 more easily.
The specific embodiment three: illustrate present embodiment below in conjunction with Fig. 3.The leading screw axial direction positioning device of present embodiment Specific Clamps comprises left alignment pin 6-1 and right alignment pin 6-2, the middle part of leading screw body 2 is provided with left shaft shoulder 2-1 and right shaft shoulder 2-2, one end of left alignment pin 6-1 and right alignment pin 6-2 is inserted in the entity of base plate 1, the other end of left alignment pin 6-1 abuts on the right-hand member end of left shaft shoulder 2-1, and the other end of right alignment pin 6-2 abuts on the left end end of right shaft shoulder 2-2.So arrange, realized the rotation that the axial location of leading screw body 2 is not affected to leading screw body 2 simultaneously.
The specific embodiment four: illustrate present embodiment below in conjunction with Fig. 3 and Fig. 4.Present embodiment also comprises column 12 and straight pin 10 with respect to embodiment one, the lower end of column 12 is fixed on base plate 1, one end of straight pin 10 is fixed on column 12, and the other end level of straight pin 10 is stretched out the end at left bushing plate 3-1 and right bushing plate 3-2 " V " shape groove.So arrange, the other end of straight pin 10 withstands on the end of trip bolt 52, when drilling machine processing, increases the soundness of trip bolt 52.
The specific embodiment five: illustrate present embodiment below in conjunction with Fig. 4.Present embodiment also comprises lock-screw 13 with respect to embodiment four, and lock-screw 13 screws in the locating hole 18 of opening in column 12 upper surfaces, and the lower end of lock-screw 13 is pressed on the periphery of straight pin 10.So arrange, easily regulate the extended position of straight pin 10, regulate and change conveniently.Can also be on the periphery of straight pin 10 milling flat or keyway so that the compression of the lower end of lock-screw 13.
Claims (6)
1. high temperature alloy trip bolt is worn the processing method of an aperture, it is characterized in that it realizes by following step:
One, Specific Clamps is fixed on Drilling machines bench, trip bolt (52) clamping in Specific Clamps, described Specific Clamps comprises base plate (1), leading screw body (2), leading screw axial direction positioning device, left bushing plate (3-1), right bushing plate (3-2), left slider (14), right slide block (7), front pressuring plate (16) and rear fender (17), front pressuring plate (16) is fixed on the front area of base plate (1) upper surface, rear fender (17) is fixed on the Background Region of base plate (1) upper surface, left slider (14) and right slide block (7) are arranged on front pressuring plate (16), between the slideway that rear fender (17) and base plate (1) form and apportion left and right, the middle part of leading screw body (2) by leading screw axial direction positioning device axial location between left slider (14) and right slide block (7), the both sides threads of lead screw rotation direction of leading screw body (2) length direction is contrary, the both sides of leading screw body (2) length direction respectively with left slider (14) and right slide block (7) entity in screwed hole screw, left bushing plate (3-1) is fixed on the top of left slider (14), right bushing plate (3-2) is fixed on the top of right slide block (7), on the right-hand member end face of left bushing plate (3-1) and on the left end end face of right bushing plate (3-2), be processed with respectively " V " shape groove, described " V " shape groove along continuous straight runs extends, angle between two faces of formation " V " shape of described " V " shape groove is 120 degree, on the right-hand member upper surface of left bushing plate (3-1), have drill jig hole (3-3), drill jig hole (3-3) connects with " V " shape groove vertically downward,
Two, adjust the drill boom position of drilling machine, make drill bit aim at drill jig hole (3-3);
Three, selecting drill speed is 2-12m/min, and hand feed completes the processing of wearing an aperture.
2. the processing method that high temperature alloy trip bolt according to claim 1 is worn an aperture, it is characterized in that having drill jig hole (3-4) on the left end upper surface of right bushing plate (3-2) of Specific Clamps, drill jig hole (3-4) connects with " V " shape groove vertically downward.
3. the processing method that high temperature alloy trip bolt according to claim 1 is worn an aperture, is characterized in that Specific Clamps also comprises ball handle (8), and ball handle (8) is fixed on the end, one end of leading screw body (2).
4. the processing method that high temperature alloy trip bolt according to claim 1 is worn an aperture, the leading screw axial direction positioning device that it is characterized in that Specific Clamps comprises left alignment pin (6-1) and right alignment pin (6-2), the middle part of leading screw body (2) is provided with the left shaft shoulder (2-1) and the right shaft shoulder (2-2), one end of left alignment pin (6-1) and right alignment pin (6-2) is inserted in the entity of base plate (1), the other end of left alignment pin (6-1) abuts on the right-hand member end of the left shaft shoulder (2-1), the other end of right alignment pin (6-2) abuts on the left end end of the right shaft shoulder (2-2).
5. the processing method that high temperature alloy trip bolt according to claim 1 is worn an aperture, it is characterized in that it also comprises column (12) and straight pin (10), the lower end of column (12) is fixed on base plate (1), it is upper that one end of straight pin (10) is fixed on column (12), and the other end level of straight pin (10) is stretched out the end at " V " shape groove of left bushing plate (3-1) and right bushing plate (3-2).
6. the processing method that high temperature alloy trip bolt according to claim 5 is worn an aperture, it is characterized in that it also comprises lock-screw (13), lock-screw (13) screws in the locating hole (18) of opening in column (12) upper surface, and the lower end of lock-screw (13) is pressed on the periphery of straight pin (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674529.7A CN103862082B (en) | 2013-12-11 | 2013-12-11 | The processing method of an aperture worn by high temperature alloy trip bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674529.7A CN103862082B (en) | 2013-12-11 | 2013-12-11 | The processing method of an aperture worn by high temperature alloy trip bolt |
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| Publication Number | Publication Date |
|---|---|
| CN103862082A true CN103862082A (en) | 2014-06-18 |
| CN103862082B CN103862082B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310674529.7A Active CN103862082B (en) | 2013-12-11 | 2013-12-11 | The processing method of an aperture worn by high temperature alloy trip bolt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439484A (en) * | 2014-11-17 | 2015-03-25 | 钟祥新宇机电制造股份有限公司 | Machining method of semicircular shock excitation block key groove of vibration motor |
| CN113399696A (en) * | 2021-07-01 | 2021-09-17 | 西北工业大学 | Ultrasonic vibration assisted drilling machining method for DD6 single crystal superalloy difficult to machine |
| CN116689823A (en) * | 2023-07-25 | 2023-09-05 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
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| CN102950312A (en) * | 2011-08-23 | 2013-03-06 | 哈尔滨建成集团有限公司 | Porous clamping device capable of automatically centering and drilling long-thin steel-sheet type parts |
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Patent Citations (7)
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| JP2007075934A (en) * | 2005-09-13 | 2007-03-29 | Nippon Spindle Mfg Co Ltd | Workpiece fixing device |
| CN101804571A (en) * | 2010-03-18 | 2010-08-18 | 孙效 | Bracket milling bottom surface and drilling mechanism |
| CN201720707U (en) * | 2010-05-27 | 2011-01-26 | 烟台海德机床有限公司 | Symmetrical clamp for milling machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439484A (en) * | 2014-11-17 | 2015-03-25 | 钟祥新宇机电制造股份有限公司 | Machining method of semicircular shock excitation block key groove of vibration motor |
| CN113399696A (en) * | 2021-07-01 | 2021-09-17 | 西北工业大学 | Ultrasonic vibration assisted drilling machining method for DD6 single crystal superalloy difficult to machine |
| CN116689823A (en) * | 2023-07-25 | 2023-09-05 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
| CN116689823B (en) * | 2023-07-25 | 2024-03-01 | 南通市正大电子有限公司 | Processing device for threading small holes of high-temperature alloy fastening screws |
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| Publication number | Publication date |
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| CN103862082B (en) | 2016-04-13 |
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