CN206662382U - A kind of high-precision roller shears - Google Patents
A kind of high-precision roller shears Download PDFInfo
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- CN206662382U CN206662382U CN201720317152.3U CN201720317152U CN206662382U CN 206662382 U CN206662382 U CN 206662382U CN 201720317152 U CN201720317152 U CN 201720317152U CN 206662382 U CN206662382 U CN 206662382U
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- roller shears
- guide pin
- pin bushing
- prerotation vane
- diameter
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Abstract
The utility model discloses a kind of high-precision roller shears, belong to machining cutter field, the problem of which solving existing roller shears assembly precision difference.The utility model includes cutter shaft, rolling shearing blade and edge bearing, in addition to guide pin bushing, described guide pin bushing and described cutter shaft key connection, and it is provided at both ends with round nut；Described guide pin bushing is provided at both ends with external screw thread, and nut is provided with the screw thread；Pad is provided with the inside of described nut；Prerotation vane is provided with the inside of described pad；Described rolling shearing blade and edge bearing is disposed alternately at the inner side of described prerotation vane.The utility model can effectively improve roller shears overall precision, improve product quality, solve the problems, such as that roller shears maintenance cost present in prior art is high.
Description
Technical field
The utility model belongs to machining cutter field, specifically, is related to a kind of high-precision roller shears.
Background technology
Roller shears are mainly used in shearing the products such as steel disc, steel pipe, copper strips in machining；Traditional roller shears be by blade and
The related accessories such as edge bearing are directly installed on the main shaft of roller shears, but the service life of this roller shears and production efficiency are very low,
Thus its product quality can not meet the needs of client.
Chinese Patent Application No. 201120162794.3, the patent document in publication date on January 25th, 2012, discloses one kind
Circular roller shears, there is the characteristics of can improving the roller shears service life.The roller shears, including tool matrix and cooperation exist
The blade of tool matrix periphery, the keeper for preventing that blade from coming off is provided between tool matrix and blade.Due in matrix
Keeper is provided between blade, so, in the course of the work, the keeper can prevent the inner edge tool matrix of blade
Relative motion occurs for periphery, so as to prevent blade from being come off from tool matrix well, substantially increases the use of roller shears
In the life-span, it is adapted to the popularization and application on the various cutters for inlaying combination.
Chinese Patent Application No. 201511034125.7, the patent application document in publication date on June 1st, 2016, is disclosed
A kind of composite construction disc rolling shearing knife.Including inner ring cutter hub and outer ring cutter hub, the inner ring cutter hub is I-shape construction, described interior
Circle cutter hub and outer ring cutter hub are provided with screw, and the inner ring cutter hub is fixedly connected with outer ring cutter hub.Using disclosed in the patent application
Technical scheme can save precious materials, dismounting blade is convenient, reduces cutter loss and use cost, can greatly improve production effect
Rate.
Through research, still there is following technical problem in existing roller shears：
1st, for the processing of different-thickness material, between the assemblings of each roller shears will be adjusted between blade with edge bearing
Gap；
2nd, edge bearing is difficult to be put into most suitable position in the assembling process of roller shears, so causing every roller shears blade
Gap is inconsistent, uneven, therefore, if in an assembling process can not place edge bearing in position, can cause to roll
The blade of scissors is assemblied in that gap on main shaft is inconsistent, and the product size size for being cut out coming is inconsistent, and plus-minus tolerance is merely able to
Control does not reach the requirement of client in ± 0.08mm or so, the product quality after shearing yet, and the service life of roller shears also reduces；
3rd, the blade of existing roller shears is directly installed on machine shaft, therefore the precision of roller shears is by machine shaft
The influence of precision, main shaft low precision, then the shear precision of roller shears is also poor.
The content of the invention
1st, to solve the problems, such as
The problem of for existing roller shears assembly precision difference, the utility model provide a kind of high-precision roller shears, can be effective
Improve roller shears overall precision, improve product quality, solve above-mentioned technical problem present in prior art.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of high-precision roller shears, including cutter shaft, rolling shearing blade and edge bearing, in addition to guide pin bushing, described guide pin bushing with it is described
Cutter shaft key connection, it is provided at both ends with round nut；Described guide pin bushing is provided at both ends with external screw thread, and spiral shell is provided with the screw thread
It is female；Pad is provided with the inside of described nut；Prerotation vane is provided with the inside of described pad；Described rolling shearing blade and knife
Pad is disposed alternately at the inner side of described prerotation vane.
Preferably, described nut is pairs of anti-loose nut structure.
Preferably, cutter shaft hole is provided with described guide pin bushing；The keyway at insertion both ends is provided with described cutter shaft hole.
Preferably, the thickness of described pad is more than the thickness of described prerotation vane.
Preferably, the diameter of described pad is less than the diameter of described prerotation vane.
Preferably, the diameter of described prerotation vane is more than the diameter of described edge bearing.
Preferably, described guide pin bushing either end is provided with set step close to described externally threaded inner side；Described leads
It is fixed on to piece on described set step.
Preferably, the external diameter of described set step is less than the diameter of described pad, again smaller than the diameter of described edge bearing.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) guide pin bushing that the utility model is set between the cutter shaft and blade, edge bearing of traditional roller shears can be mounted directly
On two cutter shafts of slitting mill, all thickness rolling shearing blade consistent with diameter is then sequentially fixed on guide pin bushing, not by
The influence of cutter shaft precision；
Because the processing cost of guide pin bushing is less than cutter shaft, thus it is easier to keep guide pin bushing that there is higher accurately cylindricity, tears open
The edge bearing of same thickness and diameter need to be only installed when filling blade；
Because that will not be influenceed by edge bearing thickness, so dismounting is very convenient, all edge bearing thickness are consistent, are more not required to
Specially to adjust, it is not required that spy is with assembling, therefore the gap between rolling shearing blade and edge bearing can keep high uniformity and one
Cause, the product size size for being thus cut out coming is consistent, and plus-minus tolerance can ensure in the range of 0.03mm；
Due to dismounting blade process need not consider edge bearing thickness adjustment the problem of, therefore substantially reduce more allowing blade replacement when
Between, thus the production time is saved, improve production efficiency；
(2) nut of the present utility model can increase the firmly installing property of blade using pairs of anti-loose nut structure；
(3) the utility model sets the keyway at insertion both ends on guide pin bushing, facilitates and is installed between guide pin bushing and cutter shaft；
(4) prerotation vane in the utility model between edge bearing and pad is capable of the installation site of positioning blade and edge bearing, really
It is consistent to protect each roller shears assembling structure；
(5) in the utility model pad thickness be more than prerotation vane thickness to protect the not compact deformation of prerotation vane, together
When pad thickness can reserve enough spaces make roller shears cut plate when leftover pieces smoothly drawn off from pad side；
(6) on the one hand the setting for covering step in the utility model on guide pin bushing is used for the position for being accurately positioned prerotation vane, another
Aspect can also play a part of auxiliary positioning blade and edge bearing, can be true so as to need to only process the unified guide pin bushing of set stepped locations
The blade for protecting each roller shears product is consistent with edge bearing installation site；
(7) the utility model is simple in construction, reasonable in design, easily fabricated.
Brief description of the drawings
Fig. 1 is the structural representation (half-sectional structure) of the utility model embodiment 1；
Fig. 2 is the structural representation (half-sectional structure) of the utility model embodiment 2；
Fig. 3 is the end view of guide pin bushing in embodiment 2.
In figure：1st, cutter shaft；2nd, key；3rd, guide pin bushing；31st, step is covered；32nd, keyway；33rd, cutter shaft hole；4th, nut；5th, pad；6、
Prerotation vane；7th, rolling shearing blade；8th, edge bearing.
Embodiment
The utility model is further described below with reference to specific embodiment.
Embodiment 1
As shown in figure 1, a kind of high-precision roller shears, including cutter shaft 1, rolling shearing blade 7 and edge bearing 8, in addition to guide pin bushing 3, institute
Cutter shaft hole 33 is provided with the guide pin bushing 3 stated, the keyway 32 at insertion both ends is provided with described cutter shaft hole 33；
Described guide pin bushing 3 is connected by key 3 with described cutter shaft 1, and it is provided at both ends with round nut (being not drawn into figure), with
Guide pin bushing is limited along cutter shaft axial float；
Described guide pin bushing 3 is provided at both ends with external screw thread, and nut 4 is provided with the screw thread, and described nut 4 is prevented for double nut
Loose structure；
The inner side of described nut 4 is provided with pad 5；The inner side of described pad 5 is provided with prerotation vane 6, described pad
The thickness of piece 5 is more than the thickness of described prerotation vane 6, and the diameter of described pad 5 is less than the diameter of described prerotation vane 6；
Described rolling shearing blade 7 and edge bearing 8 is disposed alternately at the inner side of described prerotation vane 6, described prerotation vane 6 it is straight
Footpath is more than the diameter of described edge bearing 8.
Guide pin bushing of the present utility model can be directly installed on two cutter shafts of slitting mill, and all thickness are consistent with diameter
Rolling shearing blade is then sequentially fixed on guide pin bushing, is not influenceed by cutter shaft precision；Because the processing cost of guide pin bushing is less than cutter shaft,
Thus it is easier to keep guide pin bushing that there is higher accurately cylindricity, the edge bearing of same thickness and diameter need to be only installed when dismounting blade
；Because that will not be influenceed by spacer thickness, so dismounting is very convenient, all edge bearing thickness are consistent, more need not
Specially adjust, it is not required that spy with assembling, therefore the gap between rolling shearing blade and edge bearing can keep high uniformity and unanimously,
Thus the product size size for being cut out coming is consistent, and plus-minus tolerance can ensure in the range of 0.03mm；Due to dismounting blade mistake
Cheng Wuxu considers the problem of edge bearing thickness adjustment, therefore substantially reduces the time of more allowing blade replacement, thus saves the production time,
Improve production efficiency.
Embodiment 2
A kind of high-precision roller shears, on the basis of embodiment 1, as shown in Fig. 2 in the described left end of guide pin bushing 3 close to institute
The externally threaded inner side stated is provided with set step 31；Described prerotation vane 6 is fixed on described set step 31.
The end face structure figure of guide pin bushing in the present embodiment as shown in Figure 3；
The external diameter of set step 31 described in the present embodiment is less than the diameter of described pad 5, again smaller than described edge bearing 8
Diameter, so as to prevent prerotation vane in pad 5 play between edge bearing.
Claims (8)
1. a kind of high-precision roller shears, including cutter shaft (1), rolling shearing blade (7) and edge bearing (8), it is characterised in that：Also include guide pin bushing
(3), described guide pin bushing (3) and described cutter shaft (1) key connection, it is provided at both ends with round nut；Described guide pin bushing (3) both ends are set
External screw thread is equipped with, nut (4) is provided with the screw thread；Pad (5) is provided with the inside of described nut (4)；Described pad
(5) prerotation vane (6) is provided with the inside of；Described rolling shearing blade (7) and edge bearing (8) is disposed alternately at described prerotation vane (6)
Inner side.
A kind of 2. high-precision roller shears according to claim 1, it is characterised in that：Described nut (4) is prevented for double nut
Loose structure.
A kind of 3. high-precision roller shears according to claim 2, it is characterised in that：Knife is provided with described guide pin bushing (3)
Axis hole (33)；The keyway (32) at insertion both ends is provided with described cutter shaft hole (33).
A kind of 4. high-precision roller shears according to claim 3, it is characterised in that：The thickness of described pad (5) is more than
The thickness of described prerotation vane (6).
A kind of 5. high-precision roller shears according to claim 4, it is characterised in that：The diameter of described pad (5) is less than
The diameter of described prerotation vane (6).
A kind of 6. high-precision roller shears according to claim 5, it is characterised in that：The diameter of described prerotation vane (6) is big
In the diameter of described edge bearing (8).
A kind of 7. high-precision roller shears according to claim 1-6 any one, it is characterised in that：Described guide pin bushing (3)
Either end is provided with set step (31) close to described externally threaded inner side；Described prerotation vane (6) is fixed on described set
On step (31).
A kind of 8. high-precision roller shears according to claim 7, it is characterised in that：The external diameter of described set step (31) is small
In the diameter of described pad (5), again smaller than the diameter of described edge bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317152.3U CN206662382U (en) | 2017-03-29 | 2017-03-29 | A kind of high-precision roller shears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720317152.3U CN206662382U (en) | 2017-03-29 | 2017-03-29 | A kind of high-precision roller shears |
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| Publication Number | Publication Date |
|---|---|
| CN206662382U true CN206662382U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720317152.3U Active CN206662382U (en) | 2017-03-29 | 2017-03-29 | A kind of high-precision roller shears |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961716A (en) * | 2019-11-20 | 2020-04-07 | 陕西航空电气有限责任公司 | Universal rolling shear tool |
-
2017
- 2017-03-29 CN CN201720317152.3U patent/CN206662382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961716A (en) * | 2019-11-20 | 2020-04-07 | 陕西航空电气有限责任公司 | Universal rolling shear tool |
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