CN201235417Y - Tube material disconnecting device - Google Patents
Tube material disconnecting device Download PDFInfo
- Publication number
- CN201235417Y CN201235417Y CNU2008200376541U CN200820037654U CN201235417Y CN 201235417 Y CN201235417 Y CN 201235417Y CN U2008200376541 U CNU2008200376541 U CN U2008200376541U CN 200820037654 U CN200820037654 U CN 200820037654U CN 201235417 Y CN201235417 Y CN 201235417Y
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- Prior art keywords
- blade
- external
- counteredge
- pipe
- cut
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Abstract
The utility model discloses a cutting device of pipe materials, which comprises an inner fixing blade, an external fixing blade, an inner moving blade and an external moving blade, wherein the inner fixing blade and the external fixing blade are arranged coaxially, the inner fixing blade is fixed on the inner of the cut pipe materials, the external fixing blade is fixed on the external of the cut pipe materials, the inner moving blade and the external moving blade are respectively eccentric blades, the eccentricity of the inner moving blade and the external moving blade is a half of the thickness of the cut pipe materials, the distance between the rotation center of the inner moving blade and the external moving blade and the center of the inner fixing blade is a half of the thickness of the cut pipe materials. Compared with the prior art, the cutting surface of the pipe materials which are cut by the cutting device of the pipe materials of the utility model has good quality, the pipe mouth has no necking and deformation, and no scrap rubber and burr, simultaneously, the advantage of the gradual shearing of the pipe materials of an inner wall and an external wall is that the productivity is high.
Description
Technical field:
The utility model relates to a kind of machining equipment, especially a kind of cutter sweep that is used to manage material processing.
Background technology:
The method of cut-out pipe material commonly used has three kinds at present:
1. sawing: comprise bow saw, band saw, circular saw and abrasive cutoff saw etc.The end face quality of sawing pipe material is coarse, and scale error is big, and productivity ratio is low.Saw kerf need consume certain material, (kerf width is 3 ~ 7 millimeters).Collapse tooth easily with bow saw or band saw, circular saw sawing pipe material, so only in single-piece or small lot batch manufacture, adopt more.
2. car is cut: be exactly expect with lathe, pipe cutting machine cutting pipe.Though the surface quality and the geometric accuracy of car Pipe Cutting material are higher, productivity ratio and stock utilization are low, are to adopt more baiting method during China produces in batches at present.
3. shear: manual pipe cutter commonly used, shear water gas pipe.Productivity ratio is low, and there is the reducing phenomenon termination.
At present from the welded tube unit of external introduction, also adopted the flying shear technology, highly efficient in productivity, but otch has serious plastic deformation, and the aperture needs shaping, and cutting edge needs to consume certain material (6～10 millimeters of side cut width).Application is at present also lacked than imitating in China.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of production efficiency height, otch no choke, carrot-free pipe material shearing device
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of pipe material cutter sweep, it is characterized in that: comprise interior counteredge, outer counteredge, interior mobile blade and outer mobile blade, counteredge and the coaxial setting of outer counteredge in described, counteredge is fixed on the inside that is cut the pipe material in described, described outer counteredge is fixed on the outside that is cut the pipe material, mobile blade is eccentric blade in described, the eccentric throw of interior mobile blade is to be cut half that pipe is expected thickness, the centre of gyration of interior mobile blade is to be cut half that pipe is expected thickness to the distance at the center of interior counteredge, described outer mobile blade is eccentric blade, the eccentric throw of outer mobile blade is to be cut half that pipe is expected thickness, and the centre of gyration of outer mobile blade is to be cut half that pipe is expected thickness to the distance at the center of interior counteredge.
Inside and outside wall at pipe material to be sheared respectively is provided with shearing knife edge, and shearing knife edge is made up of two external and internal fixation blades and two inner and outer movable blades, and as two scissors, one being sheared to inwall by outer wall, and another is sheared to outer wall by inwall.Dislocation motion (progressive motion) along the circumferential direction takes place for movable blade cutting edge and dead knife cutting edge can be decomposed into two components in the speed (or power) that two cutting edges intersect the place, the one, along the radial shear of a certain cutting edge, promptly produce pure shear, another component is along the sliding cutting component on the cutting edge tangential direction, this sliding cutting component makes cutting edge sharp level and smooth, thereby can obtain shear surface quality preferably.Simultaneously can make that also shear history is comparatively steady.The pipe section of cutting is smooth, and the inside and outside mouth of pipe does not have overlap, does not have the wedge angle burr.The progressive shear optimum is sheared cold rolling, cold-drawn spermaduct.
Compared with prior art, the utility model pipe material cutter sweep adopts eccentric inner and outer movable blade and external and internal fixation blade to move mutually, cuts the pipe material, pipe material cutting surface quality is good, the distortion of mouth of pipe no choke does not have overlap and burr, simultaneously yet, the superiority of the disconnected pipe material of inside and outside wall progressive shear is productivity ratio very high (being that car downcuts more than ten times of material), device structure is simple, is ELEMENTARY INTRODUCTION TO NON, economizes raw material.The pipe end face that cuts out is smoothly neat, and non-trimming, no wedge angle burr, no choke, size are accurate.It is the process means of producing most economical, the optimal cut-out pipe material that is adopted in enormous quantities.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Wherein 1, interior counteredge, 2, outer counteredge, 3, outer mobile blade, 4, interior mobile blade, 5, mandrel
Fig. 2 is the location diagram of outer counteredge of the utility model and outer mobile blade.
Wherein the centre of gyration of mobile blade is O, and the center of circle of external and internal fixation blade is O
1, the center of circle of inner and outer movable blade is O
2, the center of circle O of mobile blade
2The track that center O is changeed in wraparound is that R is the circle of 1/2 δ.
Fig. 3 is that the pipe material is inwardly sheared the shearing area that reaches the diverse location of outwards being sheared by inwall by outer wall;
Wherein: the center of circle O of Fig. 3-1, mobile blade
2Turn round 90 ° of instantaneous shearing areas;
The center of circle O of Fig. 3-2, mobile blade
2Turn round 180 ° of instantaneous shearing areas;
The center of circle O of Fig. 3-3, mobile blade
2Turn round 270 ° of instantaneous shearing areas;
The center of circle O of Fig. 3-4, mobile blade
2Turn round 360 ° of instantaneous shearing areas;
The center of circle O of Fig. 3-5, mobile blade
2The shearing track of 360 ° of processes of revolution;
Fig. 4 is the movement locus schematic diagram of mobile blade;
Wherein working as the anglec of rotation is
The time A name a person for a particular job and be moved to A '
Fig. 5 is the movement locus of any 1 E ' on the mobile blade.
Fig. 6: shear the trajectory diagram that track is made with handheld calculator LBC-1100 computing.
The specific embodiment:
As shown in Figure 1, shearing knife edge is by counteredge and rotate blade and forms, and what be arranged on pipe material outer wall is respectively outer counteredge and outer mobile blade, and pipe expects that middle mandrel is respectively interior counteredge and interior mobile blade.Outer mobile blade and interior counteredge and interior mobile blade promptly are respectively two blade faces shearing the pipe material with the field of conjugate action of outer counteredge.(selecting different shear gaps for use) according to the different-thickness of shearing tube wall.
As shown in Figure 2, the center of circle O of external and internal fixation blade
1With the centre of gyration O of mobile blade eccentric 1/2 δ, the center of circle O of inner and outer movable blade are arranged
2Same and centre of gyration O has eccentric 1/2 δ.When the center is changeed in the mobile blade wraparound to a certain angle, the center of circle O of external and internal fixation blade
1Center of circle O with mobile blade
2Overlap, this moment, the pipe material can pass through external and internal fixation blade aperture and inner and outer movable blade aperture (feeding) smoothly.Continuing revolution then begins to shear.
When mobile blade rotates with angular velocity omega, outer mobile blade cutting edge is last cutting edge, interior counteredge cutting edge is following cutting edge, the cutting edge of interior mobile blade at this moment transmits shearing force by outer cutting edge by tubing and plays the cutting edge effect, and the cutting edge of outer counteredge removes the cutting edge effect, and mobile blade off-centre rotates a circle to manage and expects just successfully to be sheared like this.The also available graphing method of this principle is found out its shearing track.(diagrammatic sketch 3)
When shearing the pipe material,, on shear surface and circumference thereof, produce one-sided uneven stress, in the one-sided generation nonuniform plastic deformation of shear surface because shearing force only acts on a direction (pure shear) with common shearing method.This is the major reason that produces many shearing defectives.Adopt now the rotary shifted progressive motion of shear blade can make shearing force along circumferencial direction act on successively pipe material section circumference have a few, the motion mode of shearing can be finished by an eccentric shaft, movable shear-blade has the circular motion that relative pipe material axle center constantly increases the degree of eccentricity, till the pipe material is cut off fully.
The design of accurate-shearing equipment should be to be based upon on such theoretical foundation, promptly the pipe material under the situation of multidirectional pressurized, better than the state of plastic deformation when the unidirectional pressurized.So the cutting edge circle of inside and outside blade is should be as far as possible identical with the interior external diameter of pipe material, the gap is the smaller the better not influencing under the situation that the pipe material passes through.
The derivation of equation of movement locus:
When rotating blade center of circle O ' and counteredge center of circle O
1During coincidence, it is A (diagrammatic sketch 4) O that this circle intersects a bit with the X-axis line
1A=O ' A '=R
If: the anglec of rotation is
The time A name a person for a particular job and be moved to A ', this point coordinates is (X
0, Y
0) from figure, learn O
1 
Maybe when rotate blade with angular velocity omega when center of circle O rotates, the track that A is ordered is:
X
o=R?COSωt-H(1-COSωt)
Y
o=(H+R)Sin?ωt
Ask movement locus (diagrammatic sketch 5) with respect to any 1 E ' of O ' A ' angle α
E’G=R?Sin?α
A’G=R-O’G=R—R?COS?α=R(1-COS?α)
Or X=R COS ω t (COS α-Sin α tg ω t)-H (1-COS ω t)
Y＝Sinωt[H-R(Sin?α?tgωt-COS?α)]+R?Sin?α/COS?ωt。
Shear track with handheld calculator LBC-1100 computing:
10?LPRINT?CHR$(18)
20?FOR?I＝0?TO?360 STEP?45
30?A＝3.1416*I/180
40?FOR?K＝0?TO?360 STEP?15
50?B＝3.1416*K/180
60?R＝80
70?H＝7.5
80?X＝R*COS(A)*(COS(B)-SIN(B)*TAN(A))-H*(1-COS(A))+110
90?Y＝SIN(A)*(H-R*(SIN(B)*TAN(A)-COS(B)))+R*SIN(B)/COS(A)
100?X1＝INT(X)
110?Y1＝INT(Y)
120?IF?B＝0?THEN?LPRINT“M”；X1；“，”；Y1：GOTO?140
130?LPRINT“D”；X1；“，”；Y1
140?NEXT?K
150?NEXT?I
160?LPRINT“M”；0；“，”；Y1：LPRINT“D”；190；“，”；Y1
170?LPRINT“M?110，110”：LPRINT“D?110，-110”
180?LPRINT“M?102，55”：LPRINT“D?102，-55”
190?LPRINT“M?0，-110”
200 LPRINT " A ": END (track is seen diagrammatic sketch 6).
Claims (1)
1, a kind of pipe material cutter sweep, it is characterized in that: comprise interior counteredge, outer counteredge, interior mobile blade and outer mobile blade, counteredge and the coaxial setting of outer counteredge in described, counteredge is fixed on the inside that is cut the pipe material in described, described outer counteredge is fixed on the outside that is cut the pipe material, mobile blade is eccentric blade in described, the eccentric throw of interior mobile blade is to be cut half that pipe is expected thickness, the centre of gyration of interior mobile blade is to be cut half that pipe is expected thickness to the distance at the center of interior counteredge, described outer mobile blade is eccentric blade, the eccentric throw of outer mobile blade is to be cut half that pipe is expected thickness, and the centre of gyration of outer mobile blade is to be cut half that pipe is expected thickness to the distance at the center of interior counteredge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200376541U CN201235417Y (en) | 2008-06-27 | 2008-06-27 | Tube material disconnecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200376541U CN201235417Y (en) | 2008-06-27 | 2008-06-27 | Tube material disconnecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201235417Y true CN201235417Y (en) | 2009-05-13 |
Family
ID=40648154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200376541U Expired - Fee Related CN201235417Y (en) | 2008-06-27 | 2008-06-27 | Tube material disconnecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201235417Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637831B (en) * | 2009-08-20 | 2011-09-28 | 江苏合丰机械制造有限公司 | Pipe no-chip cutting device |
| CN103386505A (en) * | 2012-05-09 | 2013-11-13 | 罗建国 | Progressive rotary shearing blanking method and progressive rotary shearing machine |
| CN104080564A (en) * | 2012-02-28 | 2014-10-01 | 株式会社Cvtec | Rotational cutting device and rotational cutting method |
| CN105682838A (en) * | 2013-11-28 | 2016-06-15 | 日本精工株式会社 | Method for manufacturing annular member |
| CN105856313A (en) * | 2016-06-23 | 2016-08-17 | 上海怡博船务有限公司 | Propelling device of tube cutting machine for rubber tube |
| CN114515862A (en) * | 2022-03-29 | 2022-05-20 | 四川名钺机械设备制造有限公司 | Progressive rotary shearing machine capable of keeping cutter spacing |
-
2008
- 2008-06-27 CN CNU2008200376541U patent/CN201235417Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637831B (en) * | 2009-08-20 | 2011-09-28 | 江苏合丰机械制造有限公司 | Pipe no-chip cutting device |
| CN104080564A (en) * | 2012-02-28 | 2014-10-01 | 株式会社Cvtec | Rotational cutting device and rotational cutting method |
| CN104080564B (en) * | 2012-02-28 | 2016-10-12 | 株式会社Cvtec | Rotary cutoff device and rotation cutting-off method |
| CN103386505A (en) * | 2012-05-09 | 2013-11-13 | 罗建国 | Progressive rotary shearing blanking method and progressive rotary shearing machine |
| CN103386505B (en) * | 2012-05-09 | 2016-04-20 | 罗建国 | Progressive rotary shearing blanking method and progressive rotary shearing machine |
| CN105682838A (en) * | 2013-11-28 | 2016-06-15 | 日本精工株式会社 | Method for manufacturing annular member |
| JPWO2015079684A1 (en) * | 2013-11-28 | 2017-03-16 | 日本精工株式会社 | Manufacturing method of annular member |
| US10471555B2 (en) | 2013-11-28 | 2019-11-12 | Nsk Ltd. | Method for manufacturing annular member |
| CN105856313A (en) * | 2016-06-23 | 2016-08-17 | 上海怡博船务有限公司 | Propelling device of tube cutting machine for rubber tube |
| CN114515862A (en) * | 2022-03-29 | 2022-05-20 | 四川名钺机械设备制造有限公司 | Progressive rotary shearing machine capable of keeping cutter spacing |
| CN114515862B (en) * | 2022-03-29 | 2024-04-26 | 四川名钺机械设备制造有限公司 | Progressive rotary shearing machine capable of keeping cutter spacing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20120627 |