CN202137390U - Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole - Google Patents

Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole Download PDF

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Publication number
CN202137390U
CN202137390U CN201120013933U CN201120013933U CN202137390U CN 202137390 U CN202137390 U CN 202137390U CN 201120013933 U CN201120013933 U CN 201120013933U CN 201120013933 U CN201120013933 U CN 201120013933U CN 202137390 U CN202137390 U CN 202137390U
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CN
China
Prior art keywords
boring cutter
cutter
boring
deep
clearance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201120013933U
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Chinese (zh)
Inventor
庞俊忠
赵荣
彭小明
林亚
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North University of China
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North University of China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by North University of China filed Critical North University of China
Priority to CN201120013933U priority Critical patent/CN202137390U/en
Application granted granted Critical
Publication of CN202137390U publication Critical patent/CN202137390U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an inner reaming cutting tool based on the continuous and automatic front chip discharge of a deep through hole, which is beneficial to machining special parts, such as a deep through hole having an irregular complex curved surface including a conical surface, a spherical surface, a cylindrical surface and the like and with a large middle and two small ends. The entire cutting tool comprises a boring cutter holder, an intermediate boring cutter and a boring cutter. The boring cutter holder is in a fastening connection with the intermediate boring cutter through two positioning pins and four screws. The intermediate boring cutter is in a fastening connection with the boring cutter through the interference fit of three coupling keys arranged at an angle of 120 degrees with respect to each other and internal and external edge margins. Twelve guide strips and three vibration damping strips are arranged along the radial direction at an angle of 120 degrees with respect to each other on the external diameter of the boring cutter. The rear end of the boring cutter and a boring bar are connected with each other through matched rectangular square-tooth threads. A pull bar and a guide rail are connected with each other through conical pins so as to form a push-and-pull mechanism. A rotation-stop pin and the boring cutter are connected with each other in an interference fit manner. A diamond-shaped coating machine clamp blade is fixed to a small boring cutter through a special countersink screw so as to form a moveable cutter holder mechanism. The chip discharge mode of the inner reaming cutting tool is front chip discharge.

Description

A kind of interior broad based on the continuously automatic front clearance of deep via
Technical field
The utility model relates to deep hole Machining Technology field, is a kind of interior broad based on the continuously automatic front clearance of deep via specifically.
Background technology
In deep hole machining, all be to adopt subdrilling, expansion again, last accurately machined way processing at present.It is the processing of aperture that traditional expanding method is confined to the big centre in equal diameter hole or end; The normal deep hole reamer of counterboring with step core drill cutter or conventional different model that adopts just can solve; And have the peculiar part of the irregular irregularly-shaped hole of certain taper for some small in the end and big in the middle or middle parts in the mechanical industries such as Aero-Space, automobile making, light industry mould; Cutter lost efficacy because of getting into internal cavities when particularly draw ratio was also bigger, can't realize or was difficult to realize reaming.This type of part reaming becomes restriction traditional mechanical processing one big bottleneck always.Adopt Electrolyzed Processing, the production cycle is long, cost is high, efficient is low, technology controlling and process is strict, and has a lot of problems in the possible in theory practical application.
Summary of the invention
The purpose of the utility model provides a kind of interior broad based on the continuously automatic front clearance of deep via that more helps processing irregular complex curved surfaces such as having the conical surface, sphere and the face of cylinder in the deep via and peculiar part small in the end and big in the middle.
Whole cutter body is made up of boring cutter base body, middle boring cutter body and boring cutter body three parts; The boring cutter base body is fastenedly connected through two alignment pins and four screws and middle boring cutter body, and middle boring cutter body links to each other with the boring cutter body is fastening with inside and outside rim of the mouth interference fit through three linking bonds that are 120 ° of directions; 12 slivers and three vibration damping bars radially are 120 ° of directions and are arranged on the boring cutter body diameter; Boring cutter body rear end is connected through the rectangle square thread that matches with boring bar; Pull bar and guide rail are connected to form push-pull mechanism through taper bolt; The spline pin is connected through interference fit with the boring cutter body, works to prevent that guide rail from rotating in sliding process and spacing; Rhombus coating machine clip blade is fixed on specific sunk screw forms follow rest mechanism on the little boring cutter body; Under the push-pull mechanism move left and right, the boss slide block that drives on the little boring cutter body slides in the guide rail skewed slot, and then changes the radial motion of follow rest mechanism into, realizes the flexible of cutter; End cap is fixed on boring cutter base body front end with two screws, rises to prevent that cutting fluid and cutting from flowing into inner chamber;
After described rhombus coating machine added blade assembling, point of a knife guaranteed in this kind on the broad circle diameter direction; And it is stable that the rhombus coating machine adds blade assembling back, combines closely with little boring cutter body.
Skewed slot tapering on the described guide rail and little boring cutter body convex platform slide block tapering are 14 ° 2 ' 10 " (1: 4).
Described little boring cutter body convex platform slide block slides in slant rail and wants accurately smooth.
The chute length of described spline pin on guide rail should be suitably greater than four times of the cutter stroke, and the gap between guide rail front end face and the end cap bottom surface should guarantee that cutter is capable of expansion and contraction suitably greater than four times of the cutter stroke, does not block and does not bump.
Described boring cutter body rear portion closely is connected through the rectangle square thread with boring bar.
Described boring bar rear end is provided with the rectangle square thread and is connected with rotating power source.
Described pull bar rear end is provided with the rectangle square thread and is connected with cutter axial stretching power source.
Described rhombus machine adds blade and adopts the SCREW-ON blade, and the alloy blade of high wearability, shock resistance and red hardness is arranged.
Described sliver adopts the flexibility design, and many arranged accurately lead.
According to broad in this kind of the utility model, the chip removal mode is designed to front clearance, and promptly high-pressure cutting fluid flows into cutting region from the external wall of part inwall and boring cutter and carries cutting and wash away forward; Flow into through filtering the back circulation; Under the pulling of pull bar, drive the radially flexible automatically cut of cutter head, thereby reduce cutting vibration, reduction machined surface roughness; Monolateral reaming scope is big, is that the monolateral reaming surplus of broad is 8mm-21mm in this kind of 40mm-90mm for diameter.
The beneficial effect of the utility model is: have irregular irregularly-shaped hole parts, particularly these special-shaped hole sites such as the conical surface, sphere and the face of cylinder conventional tool can't get into all and can accurately control cutter through Digit Control Machine Tool and move and be achieved in part middle part for special type, extends the function of having expanded deep hole boring machine; Changed the situation that traditional boring machine can't be processed greatly; Improved production efficiency, cutting in use is stable, and chip breaking is even; Multiple functional, surface quality is high.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the B-B profile of the utility model.
Among the figure, 1, alignment pin, 2, cutter body, 3, rhombus coating machine clip blade, 4, sunk screw; 5, little boring cutter body, 6, sunk screw, 7, end cap, 8, the boring cutter base body; 10, guide rail, 11, sliver, 12, the spline pin, 13, sunk screw 14, taper bolt; 15, boring cutter body, 16,, pull bar 17, damping bar, 18, sunk screw, 19, boring bar.
The specific embodiment
Like Fig. 1,2,3, shown in 4, pull bar 16 is connected to form push-pull mechanism through taper bolt 14 and guide rail 10; Spline pin 12 is connected with boring cutter body 15 through interference fit, works to prevent that guide rail 10 from rotating in sliding process and spacing; The specific sunk screw 4 of rhombus coating machine clip blade 3 usefulness is fixed on forms follow rest mechanism on the little boring cutter body 5; Under pull bar 16 move left and right, drive little boring cutter body 5 and in the skewed slot of guide rail 10, slide, realize radially stretching motion freely of whole cutter frame mechanism; Two sunk screws 6 of end cap 7 usefulness are fixed on boring cutter base body 8 front ends, rise to prevent that cutting fluid and cutting from flowing into inner chamber; 12 slivers 11 and three vibration damping bars 17 radially are 120 ° of directions to be arranged and is fixed in the boring cutter body 15 corresponding notches with sunk screw 13 and sunk screw 18, and sliver 11 plays the positioning and guiding effect, and 17 of vibration damping bars steadily cut damping effect; Boring cutter body 15 rear ends are connected through the rectangle square thread that matches with boring bar 19.

Claims (9)

1. one kind based on the continuous automatically interior broad of front clearance of deep via; Whole cutter body is made up of boring cutter base body, middle boring cutter body and boring cutter body three parts; It is characterized in that the boring cutter base body is fastenedly connected through two alignment pins and four screws and middle boring cutter body, middle boring cutter body links to each other with the boring cutter body is fastening with inside and outside rim of the mouth interference fit through three linking bonds that are 120 ° of directions; 12 slivers and three vibration damping bars radially are 120 ° of directions and are arranged on the boring cutter body diameter; Boring cutter body rear end is connected through the rectangle square thread that matches with boring bar; Pull bar and guide rail are connected to form push-pull mechanism through taper bolt; The spline pin is connected through interference fit with the boring cutter body, works to prevent that guide rail from rotating in sliding process and spacing; Rhombus coating machine clip blade is fixed on sunk screw forms follow rest mechanism on the little boring cutter body; Under the push-pull mechanism move left and right, the boss slide block that drives on the little boring cutter body slides in the guide rail skewed slot, and then changes the radial motion of follow rest mechanism into, realizes the flexible of cutter; End cap is fixed on boring cutter base body front end with two screws, rises to prevent that cutting fluid and cutting from flowing into inner chamber.
2. as claimed in claim 1 a kind of based on the continuous automatically interior broad of front clearance of deep via, it is characterized in that the rhombus coating machine adds the blade assembling after, point of a knife guarantees in this kind on the broad circle diameter direction; And it is stable that the rhombus coating machine adds blade assembling back, combines closely with little boring cutter body.
3. a kind of interior broad based on the continuously automatic front clearance of deep via as claimed in claim 1 is characterized in that skewed slot tapering and the little boring cutter body convex platform slide block tapering on the guide rail is 14 ° 2 ' 10 ".
4. a kind of interior broad as claimed in claim 1 based on the continuously automatic front clearance of deep via; It is characterized in that the chute length of spline pin on guide rail should be greater than four times of cutter stroke; Gap between guide rail front end face and the end cap bottom surface should be suitably greater than four times of cutter stroke; The assurance cutter is capable of expansion and contraction, does not block and does not bump.
5. a kind of interior broad based on the continuously automatic front clearance of deep via as claimed in claim 1 is characterized in that boring cutter body rear portion closely is connected through the rectangle square thread with boring bar.
6. a kind of interior broad based on the continuously automatic front clearance of deep via as claimed in claim 1 is characterized in that the boring bar rear end is provided with the rectangle square thread and is connected with rotating power source.
7. a kind of interior broad based on the continuously automatic front clearance of deep via as claimed in claim 1 is characterized in that the pull bar rear end is provided with the rectangle square thread and is connected with cutter axial stretching power source.
8. a kind of interior broad based on the continuously automatic front clearance of deep via as claimed in claim 1 is characterized in that the rhombus machine adds blade and adopts the SCREW-ON blade, and the alloy blade of high wearability, shock resistance and red hardness is arranged.
9. a kind of interior broad as claimed in claim 1 based on the continuously automatic front clearance of deep via; It is characterized in that the chip removal mode is designed to front clearance; To be high-pressure cutting fluid flow into cutting region from part inwall and the external wall of boring cutter carries cutting and washes away forward, flows into through filtering the back circulation, under the pulling of pull bar; Drive the radially flexible automatically cut of cutter head, thereby reduce cutting vibration, reduction machined surface roughness.
CN201120013933U 2011-01-18 2011-01-18 Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole Expired - Fee Related CN202137390U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120013933U CN202137390U (en) 2011-01-18 2011-01-18 Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120013933U CN202137390U (en) 2011-01-18 2011-01-18 Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole

Publications (1)

Publication Number Publication Date
CN202137390U true CN202137390U (en) 2012-02-08

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Application Number Title Priority Date Filing Date
CN201120013933U Expired - Fee Related CN202137390U (en) 2011-01-18 2011-01-18 Inner reaming cutting tool based on continuous and automatic front chip discharge of deep through hole

Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104227050A (en) * 2014-09-17 2014-12-24 西安万威刀具有限公司 Deep-hole smooth bottle cavity profiling boring cutter
CN106541160A (en) * 2016-12-07 2017-03-29 北京北方车辆集团有限公司 A kind of rotatable radial expansion cutter
CN108608066A (en) * 2018-05-09 2018-10-02 东风汽车有限公司 A kind of process tool
CN109570536A (en) * 2018-12-21 2019-04-05 株洲钻石切削刀具股份有限公司 A kind of achievable linear boring cutter for becoming feeding cutting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104227050A (en) * 2014-09-17 2014-12-24 西安万威刀具有限公司 Deep-hole smooth bottle cavity profiling boring cutter
CN106541160A (en) * 2016-12-07 2017-03-29 北京北方车辆集团有限公司 A kind of rotatable radial expansion cutter
CN106541160B (en) * 2016-12-07 2019-04-19 北京北方车辆集团有限公司 A kind of rotatable radial expansion cutter
CN108608066A (en) * 2018-05-09 2018-10-02 东风汽车有限公司 A kind of process tool
CN109570536A (en) * 2018-12-21 2019-04-05 株洲钻石切削刀具股份有限公司 A kind of achievable linear boring cutter for becoming feeding cutting

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20130118