CN207154800U - A kind of rotatable radial expansion cutter - Google Patents
A kind of rotatable radial expansion cutter Download PDFInfo
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- CN207154800U CN207154800U CN201621335221.5U CN201621335221U CN207154800U CN 207154800 U CN207154800 U CN 207154800U CN 201621335221 U CN201621335221 U CN 201621335221U CN 207154800 U CN207154800 U CN 207154800U
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- cutter
- cutter head
- pull bar
- blade
- radial expansion
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Abstract
The utility model discloses a kind of rotatable radial expansion cutter, belongs to hole machined technical field, solves middle part broad in the middle small in ends with the special-shape deep-hole parts such as the face of cylinder, clear fillet R or chamfering C processing problem.The cutter includes cutter head assembly, sliding rotary mechanism, boring cutter body, handle locking structure and supporting rod etc..Cutter head assembly uses replaceable module；Sliding cylinder pin forms the screw pair coordinated by being interference fitted to load behind pull bar front end with two spiral square grooves on cutter head rotating seat, rectilinear movement is dexterously transformed into rotary motion, two that pull bar and cutter head rotating seat are arranged on boring cutter body have in the eccentric stepped hole of certain eccentric amount e, realize the radial extent in cutter head rotary course and shortening；Whole cutter can be by supporting rod or matched handle of a knife clamping on general car, general milling, machining center.It can be used in the processing of creeper tread.Simple in construction, ingenious practicality, require described multiple functional when in use.
Description
Technical field
The utility model belongs to hole machined technical field, is related in a kind of special-shaped hole machined and solves in the middle part of the aperture of both ends greatly
The dedicated tool technology of the problems such as hole machined or clearly middle part fillet R, chamfering C.
Background technology
Hole machined is in field of machining and its universal, and common hole machined technology is very ripe, but for irregularly-shaped hole
For processing certain difficulty be present, particularly small in ends, processing middle part macropore or the problems such as clear middle part fillet R, chamfering C, at present
In the market conventional tool is all rigidly big using cutter head, the great cantilever processing that certain radical length is installed on elongated knife bar, cutter
Slacken greatly, dynamic balance performance it is also bad, cause that stock-removing efficiency is limited, crudy is not also high.When super more five times of draw ratio of processing
More than such deep hole when, rigid wretched insufficiency, " allow knife " phenomenon protrude, cutter again can not radial expansion adjustment well, can not
Processed into internal cavities, be typically designed personnel and all avoid such hole machined problem as far as possible.In military industry field because of specific demand
It can not avoid, such hole machined problem can not be solved effectively always, turn into a big bottleneck.
Utility model content
The technical problem that the utility model solves is to provide a kind of rotatable radial expansion cutter, solves a kind of similar to certain
Military creeper tread inner side chamfering can not highly-efficient processing dedicated tool, be particularly used for solving middle part broad in the middle small in ends and carrying
The special-shape deep-hole parts such as the face of cylinder, clear fillet R or chamfering C processing problem has more unique advantage.
The technical solution of the utility model is：A kind of rotatable radial expansion cutter, including cutter head assembly, sliding rotary
Mechanism, boring cutter body, handle locking structure and supporting rod；Described cutter head assembly includes blade, body of tool bit, cutter head pressing plate；Blade
In the corresponding cutter groove of body of tool bit, cutter head pressing plate compresses blade and is fastened on by screw on body of tool bit；Cutter head assembly is removable
Installation is unloaded to be fastened on cutter head rotating seat；Described sliding rotary mechanism includes pull bar, sliding cylinder pin, cutter head rotating seat；
Described boring cutter body is cylindrical drum, is had in a centre bore and eccentric stepped hole in it, pull bar front end have eccentric orfice with
And eccentric step；The eccentric step of pull bar coordinates with boring cutter body and eccentric step, enables pull bar back segment in boring cutter body
Moved in centre bore；Cutter head turning seat is in pull bar eccentric orfice front end；There are two helicla flutes on cutter head rotating seat；Slide
Straight pin radially loads in the eccentric hole wall of pull bar front end；Sliding cylinder pin is matched somebody with somebody with two helicla flutes on cutter head rotating seat
It is combined into screw pair；Described handle locking structure includes handlebar；Described supporting rod is hollow stem, its front end and boring cutter
Body afterbody is connected, and handlebar is fixed through the oval notch on supporting rod with pull bar.
Preferably, latch is arranged on boring cutter body front end by interference fit.
Preferably, blade can be A types blade and Type B blade, and it is indexable hard alloy coated blade.
Preferably, A types blade and Type B blade are arranged on by cross recessed countersunk head sscrew in the corresponding cutter groove of body of tool bit, then
Cutter head pressing plate is fastened on body of tool bit by hexagon socket cap head screw.
Preferably, after A types blade and Type B blade assemble, two points of a knife are located on the same diametral plane of whole cutter.
Preferably, handle locking structure is further defined to：Also include three baffle rings, spacer ring, stripped nuts；Three
Individual baffle ring, spacer ring, stripped nut are sequentially arranged on supporting rod periphery, and bulb handle, handlebar are screwed in handlebar one end
The other end is screwed into push-and-pull rod rear end screwed hole through the oval notch on supporting rod.
Preferably, 0 °, 90 °, 180 ° of three kinds of angles can be rotated by promoting bulb handle and rotating baffle ring.
Preferably, it is two large pitch precision auger square grooves that two helicla flutes are arranged symmetrically on cutter head rotating seat, lead angle
β is dextrorotation in 12 °~30 ° values and the hand of spiral.
Preferably, two eccentric boss offsets are e on two eccentric stepped holes and pull bar on boring cutter body.
Preferably, oval flute length matches with two spiral square groove helical pitches on cutter head rotating seat on supporting rod, cutter head rotating seat
It can be rotated in the angle in 0 °~180 °.
Preferably, handle locking structure is further defined to：Also include three baffle rings, spacer ring, stripped nuts；Three
Individual baffle ring, spacer ring, stripped nut are sequentially arranged on supporting rod (15) periphery, and the periphery of supporting rod has stair-step,
The rear end baffle ring of three baffle rings is contacted with step surface, and the smaller diameter end of supporting rod is connected with boring cutter body afterbody.
It is of the present utility model to have the technical effect that：：
Because the cutter using eccentric rotary mechanism realizes cutter head radial direction automatic telescopic, cutter structure is ingenious, and connection can
Lean on so that processing middle part broad in the middle small in ends becomes practical with special-shape deep-holes such as the face of cylinder, fillet R or chamfering C；Knife
Head assembly modularized design, according to processing, or not similar shape face demand flexibly with changing, function does not expand extension further；Handle lock tight knot
Structure make it that practical operation is easy to use sensitive.
Effectively solve simultaneously highly-efficient processing special-shape deep-hole inner cavity of component big hole machined, clear fillet R or chamfering broad in the middle small in ends
The problems such as C.Simple in construction, ingenious practicality, require described multiple functional when in use.
Cutter head assembly uses replaceable module design philosophy, has expanded the additional function of cutter significantly；Sliding cylinder pin
By being interference fitted to load behind pull bar front end the spiral shell coordinated is formed with two large pitch precision auger square grooves on cutter head rotating seat
Rotation is secondary, and rectilinear movement dexterously is transformed into rotary motion, two pull bar and cutter head rotating seat are arranged on boring cutter body
In eccentric stepped hole with certain eccentric amount e, the radial extent in cutter head rotary course and shortening are realized；Handle lock tight knot
Structure utilizes three states in cutter head rotary course using convenient practical baffle ring solidification：0 ° of (point of a knife contraction state, for safety
Enter withdrawing), 90 ° of (optimized cutting state, radial feeds are maximum in rotary course, the change of cutter front-and-back angle is small), 180 ° of (knives
The maximum stretching state of point, cuts compensator section)；Whole cutter can by supporting rod or matched handle of a knife clamping general car,
In general milling, machining center.Chip removal mode of the present utility model is designed as external chip discharging.
Brief description of the drawings
Fig. 1 is 3-D view of the present utility model；
Fig. 2 is front view of the present utility model；
Fig. 3 is top view of the present utility model；
Fig. 4 is left view of the present utility model；
Fig. 5 is Fig. 4 A_A direction views；
Fig. 6 is Fig. 5 B-B direction schematic diagram；
Fig. 7 is Fig. 5 C-C to schematic diagram；
Fig. 8 is Fig. 5 D-D to schematic diagram；
Fig. 9 is monolithic knife right angle setting figure in several cutter head assembly modules of the present utility model；
Figure 10 is the vertically arranged front view of monolithic knife in several cutter head assembly modules of the present utility model；
Figure 11 is Figure 10 D-D direction views；
Figure 12 is monolithic in several cutter head assembly modules of the present utility model to edging installation diagram；
Figure 13 is that circular arc blade right angle setting figure is shaped in several cutter head assembly modules of the present utility model.
Wherein, 1, cutter head pressing plate, 2, hexagon socket cap head screw, 3, body of tool bit, 4, cross recessed countersunk head sscrew, 5, A type knives
Piece, 6, Type B blade, 7, cylindrical pin with internal thread, 8, cutter head rotating seat, 9, boring cutter body, 10, sliding cylinder pin, 11, pull bar,
12nd, stripped nut, 13, spacer ring, 14, Mohs baffle ring, 15, supporting rod, 16, end cap, 17, head bolts, 18, rotation stop pin,
19th, latch, 20, bulb handle, 21, handlebar
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, it is of the present utility model a kind of based on certain military creeper tread highly-efficient processing shown in Fig. 3, Fig. 4, Fig. 5
Rotatable radial expansion cutter, including cutter head assembly, sliding rotary mechanism, boring cutter body 9, Mohs handle locking structure and clamping
Bar.
Described cutter head assembly includes blade, body of tool bit, cutter head pressing plate；Blade is located in the corresponding cutter groove of body of tool bit, knife
Head pressing plate compresses blade and is fastened on by screw on body of tool bit.Detachably installation is fastened on cutter head rotating seat 8 to cutter head assembly
On.Cutter head assembly is arranged on cutter head rotating seat 8 by cylindrical pin with internal thread 7.
Further, as shown in Fig. 5,8, blade can be A types blade 5,6 two kinds of Type B blade simultaneously, A types blade 5 and B
Type blade 6 is hard alloy coated blade.
Described sliding rotary mechanism includes pull bar 11, sliding cylinder pin 10, cutter head rotating seat 8；Pull bar 11 is pacified
In the eccentric stepped hole with certain eccentric amount e on boring cutter body 9, cutter head turning seat 8 is located at pull bar front end；Knife
There are two helicla flutes on head rotating seat 8；Sliding cylinder pin radially loads in (bias) hole wall of pull bar front end；Slide circle
Pin is matched somebody with somebody with two helicla flutes on cutter head rotating seat is combined into screw pair.
Further limit, there is a centre bore and eccentric stepped hole as shown in figure 5, boring cutter body 9 is cylindrical drum, in it
Interior, the front end of pull bar 11 has eccentric orfice and eccentric step；The eccentric step of pull bar 11 is matched somebody with somebody with boring cutter body and eccentric step
Close, the back segment of pull bar 11 is moved in the centre bore of boring cutter body 9；Before cutter head rotating seat 8 is located at seat pull bar eccentric orfice
End.
So pass through screw mechanism (two of cutter head rotating seat in the case where pull bar 11 is movable in sliding rotary mechanism
Helicla flute and sliding cylinder pin) cutter head assembly eccentric rotary on boring cutter body 9 is driven, realize the radial expansion of point of a knife；
Further, whole cutter head assembly is fastened on cutter head rotating seat by the installation of cylindrical pin with internal thread 7,
Further, latch 19 is arranged on boring cutter body front end by interference fit.Latch 19 is pacified by being interference fitted
Mounted in the front end of boring cutter body 9, the flexible rotating of protection cutter head rotating seat 8 is without play；Rising prevents pull bar 11 in movable process
It is middle to rotate and play position limitation protection effect.
Supporting rod 15 is tightened in the tail handle bar 21 of boring cutter body 9 through the oval notch and pull bar on supporting rod 15
11 fix.Further, handlebar 21 is screwed into the tailing screw flight hole of pull bar 11 through the oval notch on supporting rod 15,
Bulb handle 20 is mounted in the other end of handlebar 21.
Further, as shown in figure 5, three notched baffle rings 14, spacer ring 13, stripped nuts 12 are successively (from upper
Fall down) lower end periphery of supporting rod 15 is enclosed on, the bulb handle other end is screwed on through the oblong slots on supporting rod in the one end of handlebar 15
Mouth is screwed into composition handle locking structure in push-and-pull rod rear end screwed hole；
0 ° of cutter of control, 90 °, 180 ° of three kinds of use states can fast be adjusted by promoting bulb handle and rotating baffle ring 14.
Further, end cap 16 is fixed on the afterbody of supporting rod 15 by four head bolts 17,
Further, indexable hard alloy coating A types blade 5 and Type B blade 6 are installed by cross recessed countersunk head sscrew 4
It is fastened in the corresponding cutter groove of body of tool bit 3, then by cutter head pressing plate 1 by hexagon socket cap head screw 2 on body of tool bit 3, so
Constitute whole cutter head assembly.
Further, after the assembling of described indexable hard alloy coating A types blade and Type B blade, two points of a knife ensure
On the same diametral plane of whole cutter.
Further, two large pitch precision auger square grooves are arranged symmetrically on described cutter head rotating seat, lead angle β exists
12 °~30 ° values and the hand of spiral are dextrorotation.
Further, eccentric boss offset is e and satisfaction on eccentric stepped hole and pull bar on described boring cutter body
Coordinate and require.
Handle locking structure can accurately control 0 ° of cutter head, 90 °, 180 ° of three kinds of rotation status, convenient practical, energy during use
Quick adjustment locking.
Oval flute length matches with two precision auger square groove helical pitches on cutter head rotating seat on described supporting rod, ensures
Adjusted in the range of 0 °~180 ° freely, rotate it is flexible.
Further, sliding cylinder pin 10 is loaded in pull bar 11 by being interference fitted, then overall to be mounted in boring cutter body 9
In cylindrical hole,
Described supporting rod is hollow stem, and its front end is connected with boring cutter body afterbody, and handlebar passes through oval on supporting rod
Notch is fixed with pull bar.The periphery of supporting rod has stair-step, and the smaller diameter end of supporting rod is connected with boring cutter body afterbody,
Three baffle rings, spacer ring, stripped nuts are sequentially arranged at the smaller diameter end of supporting rod periphery from back to front, three baffle rings
Rear end baffle ring contacts with step surface.
Assembling process of the present utility model is：
Indexable hard alloy coating A types blade 5 and Type B blade 6 are arranged on body of tool bit 3 by cross recessed countersunk head sscrew 4
Corresponding cutter groove in, then cutter head pressing plate 1 is fastened on body of tool bit 3 by hexagon socket cap head screw 2, so constituted whole
Individual cutter head assembly.
Sliding cylinder pin 10 is loaded in pull bar 11 by being interference fitted, then overall in the cylindrical hole of boring cutter body 9,
Now rotation stop pin 18 is loaded in boring cutter body 9 and aligns the slip notch on pull bar 11, cutter head rotating seat 8 is being inserted into boring
In the eccentric stepped hole of the front end of cutter hub 9, in front and rear pulling pull bar 11, rotation blade rotating seat 8 slides sliding cylinder pin 10
Enter in two spiral square grooves on cutter head rotating seat 8, latch 19, so whole sliding rotary are loaded after being then adjusted in place
Mechanism installs；Now cutter head assembly is arranged on cutter head rotating seat 8 by cylindrical pin with internal thread 7；Then by supporting rod
15 are tightened in the afterbody of boring cutter body 9；Handlebar 21 is screwed into the tailing screw flight hole of pull bar 11 through the oval notch on supporting rod 15
It is interior, bulb handle 20 is mounted in the other end of handlebar 21；By three Mohs baffle rings 14, spacer ring 13 and stripped nut 12 according to
In secondary loading supporting rod 15；End cap 16 is finally fixed on the afterbody of supporting rod 15, whole knife by four head bolts 17
Tool assembly connection finishes.
Claims (10)
- A kind of 1. rotatable radial expansion cutter, it is characterised in that including cutter head assembly, sliding rotary mechanism, boring cutter body (9), Handle locking structure and supporting rod (15)；Described cutter head assembly includes blade, body of tool bit, cutter head pressing plate；Blade is located in the corresponding cutter groove of body of tool bit, cutter head pressure Plate compresses blade and is fastened on by screw on body of tool bit；Cutter head assembly installation is fastened on cutter head rotating seat (8)；Described sliding rotary mechanism includes pull bar (11), sliding cylinder pin (10), cutter head rotating seat (8)；Described boring cutter body (9) is cylindrical drum, and it is interior with a centre bore and eccentric stepped hole, and pull bar (11) front end has There are eccentric orfice and eccentric step；The eccentric step of pull bar (11) coordinates with boring cutter body and eccentric step, after pull bar (11) Section can move in the centre bore of boring cutter body (9)；Cutter head rotating seat (8) is located at pull bar (11) eccentric orfice front end；Cutter head revolves There are two helicla flutes on swivel base (8)；Sliding cylinder pin radially loads in the eccentric hole wall of pull bar front end；Sliding cylinder pin with Two helicla flutes on cutter head rotating seat, which are matched somebody with somebody, is combined into screw pair；Described handle locking structure includes handlebar (21)；Described supporting rod (15) is hollow stem, and its front end is connected with boring cutter body (9) afterbody, and handlebar (21) passes through supporting rod (15) the oval notch and pull bar (11) on are fixed.
- 2. a kind of rotatable radial expansion cutter according to claim 1, it is characterised in that latch (19) passes through interference Cooperation is arranged on boring cutter body (9) front end.
- 3. a kind of rotatable radial expansion cutter according to claim 1, it is characterised in that blade can be A type blades With Type B blade, it is indexable hard alloy coated blade.
- 4. a kind of rotatable radial expansion cutter according to claim 3, it is characterised in that A types blade and Type B blade lead to Cross recessed countersunk head sscrew is crossed to fasten by hexagon socket cap head screw in the corresponding cutter groove of body of tool bit, then by cutter head pressing plate On body of tool bit.
- 5. a kind of rotatable radial expansion cutter according to claim 3, it is characterised in that A types blade and Type B blade dress After matching somebody with somebody, two points of a knife are located on the same diametral plane of whole cutter.
- 6. a kind of rotatable radial expansion cutter according to claim 1, it is characterised in that handle locking structure is further It is defined to：Also include three baffle rings, spacer ring, stripped nuts；Three baffle rings, spacer ring, stripped nuts are sequentially arranged at On supporting rod (15) periphery, the periphery of supporting rod has stair-step, and the rear end baffle ring of three baffle rings contacts with step surface, clamping The smaller diameter end of bar is connected with boring cutter body afterbody.
- 7. a kind of rotatable radial expansion cutter according to claim 6, it is characterised in that promote bulb handle and rotate Baffle ring can rotate 0 °, 90 °, 180 ° of three kinds of angles.
- A kind of 8. rotatable radial expansion cutter according to claim 1, it is characterised in that symmetrical cloth on cutter head rotating seat It is two large pitch spiral square grooves to put two helicla flutes, and lead angle β is dextrorotation in 12 °~30 ° values and the hand of spiral.
- A kind of 9. rotatable radial expansion cutter according to claim 1, it is characterised in that two eccentric step on boring cutter body Two eccentric boss offsets are e on hole and pull bar.
- A kind of 10. rotatable radial expansion cutter according to claim 1, it is characterised in that oval flute length on supporting rod Match with two spiral square groove helical pitches on cutter head rotating seat, cutter head rotating seat can be in the angle rotation in 0 °~180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621335221.5U CN207154800U (en) | 2016-12-07 | 2016-12-07 | A kind of rotatable radial expansion cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621335221.5U CN207154800U (en) | 2016-12-07 | 2016-12-07 | A kind of rotatable radial expansion cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207154800U true CN207154800U (en) | 2018-03-30 |
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ID=61708459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621335221.5U Active CN207154800U (en) | 2016-12-07 | 2016-12-07 | A kind of rotatable radial expansion cutter |
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| Country | Link |
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| CN (1) | CN207154800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738221A (en) * | 2019-01-22 | 2019-05-10 | 安徽建筑大学 | A kind of laboratory test simulation system of jacking construction |
| CN115780847A (en) * | 2022-11-11 | 2023-03-14 | 大连理工大学 | Cutter utensil is inserted to interchangeable tool bit formula honeycomb core supersound |
-
2016
- 2016-12-07 CN CN201621335221.5U patent/CN207154800U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738221A (en) * | 2019-01-22 | 2019-05-10 | 安徽建筑大学 | A kind of laboratory test simulation system of jacking construction |
| CN115780847A (en) * | 2022-11-11 | 2023-03-14 | 大连理工大学 | Cutter utensil is inserted to interchangeable tool bit formula honeycomb core supersound |
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