CN102744616A - Support device and machine tool - Google Patents
Support device and machine tool Download PDFInfo
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- CN102744616A CN102744616A CN2012102194892A CN201210219489A CN102744616A CN 102744616 A CN102744616 A CN 102744616A CN 2012102194892 A CN2012102194892 A CN 2012102194892A CN 201210219489 A CN201210219489 A CN 201210219489A CN 102744616 A CN102744616 A CN 102744616A
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- strutting arrangement
- bracing
- supporting component
- tapered sleeve
- bearing
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Abstract
The invention relates to the technical field of machine tools, and discloses a support device and a machine tool. The support device is used for randomly supporting a rotatable cantilevered member bar; the support device comprises a first support component and a second support component; the first support component is used for being axially and movably sleeved on the member bar; and the second support component is rotatably matched with the first support component. The support device provided by the embodiment of the invention is arranged on the extension direction of the member bar in the using process so as to guarantee the straightness accuracy of the member bar; when the member bar is rotated, the first support component can be driven to rotate in the second support component; when the member bar is elastic, the support device can axially move relative to the first support device; therefore, the support device guarantees the moving performance of the member bar, and also has good supporting for the member bar; moreover, the stability and the service life of the member bar are improved, and the influence to processing quality caused by larger deformation of the member bar is prevented.
Description
Technical field
The present invention relates to the machine tool technology field, the particularly a kind of bracing or strutting arrangement of the rotatable rod member that overhangs of servo-actuated support and lathe of being used for this bracing or strutting arrangement.
Background technology
In recent years; The construction machinery industry fast development in the whole world; The demand of heavy mechanical equipments such as the pump truck of all size, hydraulic crawler excavator, Coal Mechanical and blower fan is increasing, therefore, as the requisite parts of these heavy-duty machineries---the output of hydraulic cylinder is also more and more.
Because the endoporus of hydraulic cylinder has very high request for cylindricity and surface roughness, usually need be with scraping Precision Machining bore area of roller, to improve the surface quality of endoporus.When the draw ratio of oil cylinder was big, the draw ratio of the boring bar that is used for mounting cutter that need use was also bigger, and in process, the boring bar distortion is serious, is difficult to guarantee the surface roughness and the cylindricity of workpiece endoporus.
Existing machine tool boring bar or be unsettled setting is out of shape greatlyyer, is difficult to guarantee the axiality of workpiece endoporus; In knife end support is installed; Pass in and out the workpiece endoporus by supporting with cutter, bracing or strutting arrangement is contacted with the surface of workpiece endoporus, can't guarantee the surface quality of workpiece endoporus.
Therefore, how improving to existing boring bar supporting way, is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the present invention aims to provide a kind of bracing or strutting arrangement and lathe, supports so that the rotatable rod member that overhangs (like boring bar) is carried out servo-actuated, avoids rod member to influence crudy greatly because of distortion.
On the one hand; The invention provides a kind of bracing or strutting arrangement; Be used for servo-actuated and support the rotatable rod member that overhangs; This bracing or strutting arrangement comprises first supporting component and second supporting component, and said first supporting component is used for being set in said rod member with moving axially, and said second supporting component cooperates with said first supporting component rotation.
Further, said bracing or strutting arrangement also comprises bearing, and the inner ring of said bearing is set on said first supporting component, and said second supporting component is set on the outer ring of said bearing.
Further, the number of said bearing is two, and said two bearings are provided with at interval.
Further, be provided with spacer between said two bearings.
Further, said bracing or strutting arrangement also comprises the sealing flange on second supporting component that is installed on said bearing both sides, and the flange hole edge of said sealing flange and said first supporting component are sealed and matched.
Further; Said first supporting component comprises first tapered sleeve with male cone (strobilus masculinus) and second tapered sleeve with inner conical surface; Said first tapered sleeve is used for being set in said rod member with moving axially; Said second tapered sleeve is set on said first tapered sleeve, and the inner ring of said bearing is set on said second tapered sleeve.
Further, said second tapered sleeve is provided with and can drives said first tapered sleeve with respect to the axially movable degree of tightness regulating element of said second tapered sleeve.
Further, said second supporting component comprises: base; Supporting seat is fixedly arranged on the base; Be set in the support set on the outer ring of said bearing, be installed on the said supporting seat.
Further, the outer shroud of said support set is provided with groove, and said supporting seat is provided with the convexity that is complementary with said groove; The position of contiguous said protruding elongated end is provided with and can compresses the clamping plate that contacts with the bottom of said groove on the said supporting seat.
Further, said bracing or strutting arrangement also comprises guide rail, and said second supporting component is arranged on the said guide rail movably.
On the other hand; The present invention also provides a kind of lathe: this lathe is provided with above-mentioned preceding nine each described bracing or strutting arrangements; Also be provided with bed ways on the said lathe; Said rod member and said bed ways laterally arrange, and said second supporting component is arranged on the said bed ways movably; Perhaps this lathe is provided with the tenth described bracing or strutting arrangement, and said guide rail and said rod member laterally arrange.
Further, said lathe is for scraping roller, and said rod member is a boring bar, and the said boring bar case of scraping roller links to each other through connector with said second supporting component.
A kind of bracing or strutting arrangement provided by the invention carries out the servo-actuated support through first supporting component and second supporting component that constitutes the rotation cooperation to the rotatable rod member that overhangs (like boring bar); In use, this bracing or strutting arrangement is arranged on the bearing of trend of said rod member, to guarantee the linearity of said rod member; Said rod member when rotated; Can drive first supporting component and in second supporting component, rotate, said rod member can move axially with respect to first supporting component when elastic; Promptly this bracing or strutting arrangement had both guaranteed the activity performance of said rod member; Can carry out excellent support to said rod member again, not only improve the stability and the service life of said rod member, and avoid said rod member to influence crudy because of producing moderate finite deformation.
A kind of lathe provided by the invention has above-mentioned bracing or strutting arrangement, and in use, second supporting component of this bracing or strutting arrangement can slide on the bed ways that are arranged at lathe or on the guide rail of self said rod member carried out servo-actuated and support.Because above-mentioned bracing or strutting arrangement has above-mentioned technique effect, therefore, this lathe also has the corresponding techniques effect.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
The axonometric drawing of a kind of bracing or strutting arrangement that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the front view of bracing or strutting arrangement shown in Figure 1;
Fig. 3 be among Fig. 2 A-A to cutaway view.
The specific embodiment
Should be pointed out that description and the description order to concrete structure only is the explanation to specific embodiment in this part, should not be regarded as that protection scope of the present invention is had any restriction.In addition, under the situation of not conflicting, embodiment and the characteristic among the embodiment in this part can make up each other.
Please be simultaneously with reference to figure 1, Fig. 2 and Fig. 3, below with reference to accompanying drawing and combine embodiment that the present invention is done further detailed description.
As shown in the figure, the bracing or strutting arrangement of this embodiment is used for that boring bar 3 is carried out servo-actuated to be supported.This bracing or strutting arrangement mainly comprises: first supporting component, and second supporting component, and be located at the bearing 7 and bearing 9 between first supporting component and second supporting component.
Wherein, first supporting component mainly comprises first tapered sleeve 4, clamping sleeve 5 and second tapered sleeve 6 etc.; First tapered sleeve 4 has male cone (strobilus masculinus), and first tapered sleeve 4 can be set on the boring bar 3 with moving axially, and promptly first tapered sleeve 4 can move axially with respect to boring bar 3, and first tapered sleeve 4 can rotate with respect to boring bar 3 synchronously; Second tapered sleeve 6 has inner conical surface; Second tapered sleeve 6 can be set on first tapered sleeve 4 with moving axially; The i.e. inner conical surface contact matching of the male cone (strobilus masculinus) of first tapered sleeve 4 and second tapered sleeve 6; First tapered sleeve 4 can move axially with respect to second tapered sleeve 6, and then changes the degree of tightness cooperate degree between first tapered sleeve 4 and second tapered sleeve 6.
The length of first tapered sleeve 6 is greater than the length of second tapered sleeve 4; The inner conical surface of second tapered sleeve 6 both sides in the longitudinal direction are provided with internal thread; Clamping sleeve 5 is provided with the external screw thread that is complementary with this internal thread, and the number of clamping sleeve 5 is two, respectively with second tapered sleeve, 6 inner conical surfaces both sides threaded engagement in the longitudinal direction; The end of thread end face of clamping sleeve 5 compresses with the end face of first tapered sleeve 4 and contacts; Promptly, first tapered sleeve 4 is moved axially with respect to second tapered sleeve 6, with the degree of tightness mated condition between the inner conical surface of the male cone (strobilus masculinus) that changes first tapered sleeve 4 and second tapered sleeve 6 through rotatably compressing cover 5; And then change the fit clearance between first tapered sleeve 4 and the boring bar 3, thereby adjust the rigidity of support of first supporting component to boring bar 3.
Bearing 7 is provided with bearing 9 at interval; The inner ring of bearing 7 and bearing 9 is set on second tapered sleeve 6 of first supporting component; Second supporting component is set on the outer ring of bearing 7 and bearing 9, is connected with spacer 8 between the outer ring of bearing 7 and bearing 9, and spacer 8 can play the effect of separating; Guarantee the span between bearing 7 and the bearing 9, increase stability; When boring bar 3 rotation, the inner ring that drives first tapered sleeve 4, second tapered sleeve 6 and bearing 7 and bearing 9 is rotated synchronously, because boring bar 3 and first tapered sleeve 4 etc. rotate synchronously, help to reduce the wearing and tearing of boring bar 3, the service life of raising lever 3.
Second supporting component mainly comprises support set 13, supporting seat 2 and base 1 etc.; Supporting seat 2 is fixed on the base 1; Supporting seat 2 is an assembly structure or one-body molded with base 1, and the outer shroud of support set 13 is installed on the supporting seat 2, and inner ring sleeve is loaded on the outer ring of bearing 7 and bearing 9; The outer shroud of support set 13 is provided with groove 131; Supporting seat 2 is provided with the convexity 21 that is complementary with this groove 131; Protruding 21 around forming semicircle breach; The outer shroud of support set 13 is installed in this semicircle breach, makes protruding 21 to insert in the groove 131, thereby realizes the axial limiting of support set 13; The position of bump, adjacent 21 elongated ends is provided with clamping plate 14 on the supporting seat 2; The force side of clamping plate 14 can compress with the bottom of the groove 131 of support set 13 and contact; Gap between the bottom of the force side of clamping plate 14 and groove 131 can be through control handle 15 controls; During practical implementation, the position of bump, adjacent 21 elongated ends is provided with first notch of certain-length on the supporting seat 2, and clamping plate 14 is provided with the slotted eye of respective length; One end inserting end of control handle 15 passes said slotted eye and is embedded in the said notch; Can adjust the distance between clamping plate 14 and the supporting seat 2 through rotating control handle 15, and then the gap between the bottom of the force side of adjustment clamping plate 14 and groove 131, promptly clamping plate 14 is loaded on support set 13 geometrical clamps on the supporting seat 2 through control handle 15.
In the foregoing description; For lubricant outflow dustproof and that prevent bearing 7 and bearing 9; Can on the support set 13 of the both sides of bearing assembly, a sealing flange 11 be set respectively, particularly, sealing flange 11 is fixed on the support set 13 through bolt 12; The flange hole edge of sealing flange 11 is provided with groove; Be provided with felt circle 10 in this groove, the flange hole edge of sealing flange 11 is compassingly set on the outer surface of second tapered sleeve 6, and is sealed and matched through the outer surface of the black washer 10 and second tapered sleeve 6.
In use, can above-mentioned bracing or strutting arrangement be arranged on the bearing of trend of boring bar 3, particularly, base 1 be arranged on movably on the bed ways (scheming not shown) of boring bar 3 belows; Boring bar 3 is passed in first tapered sleeve 4, and an end is installed on the boring bar case, and the other end is installed process tool; And with connectors such as chains bracing or strutting arrangement is linked to each other with the boring bar case, adding man-hour, when boring bar 3 swivel feedings; The inner ring that boring bar 3 drives first tapered sleeve 4, second tapered sleeve 6 and bearing 7 and 9 rotates synchronously, and before the boring bar case touched boring bar 3, boring bar 3 is sliding feed in first tapered sleeve 4; At this moment, bracing or strutting arrangement plays the effect of fixed support, after the boring bar case touches bracing or strutting arrangement; The boring bar case will promote this bracing or strutting arrangement and travel forward together, and at this moment, bracing or strutting arrangement plays the effect of synchronous support; When after the boring bar case moves to range, returning, the boring bar case is returned to initial position through the chain between itself and the bracing or strutting arrangement with this bracing or strutting arrangement.Need to prove; Bracing or strutting arrangement can be by boring bar case control (like above-mentioned situation) to the Support Position of boring bar 3; In other embodiments, also can control, for example realize through the control module of additional configuration through other modes; This control module obtains the motion state of boring bar, and moves to the relevant position according to this motion state control bracing or strutting arrangement along bed ways boring bar 3 is supported.
Among the above-mentioned various embodiment, in order to improve the rigidity of support to boring bar 3, contacting between boring bar 3 and first tapered sleeve 4 and between base 1 and the bed ways is preferably the face contact, in other embodiments, also can adopt other forms as required.
Among the above-mentioned various embodiment; Adopt clamping sleeve 5 as the degree of tightness regulating element; Be used to regulate the degree of tightness cooperate degree between first tapered sleeve 4 and second tapered sleeve 6; In other embodiments, also can adopt other forms as required, as long as can realize driving the fit clearance that first tapered sleeve 4 moves axially certain distance with respect to second tapered sleeve 6 and then changes both.
Among the above-mentioned various embodiment, be provided with spacer between the outer ring of bearing 7 and bearing 9, the effect of be used to play at interval, stablizing span in other embodiments, also can be passed through other form as required and realize.
Among the above-mentioned various embodiment, preferably adopt bearing 7 and bearing 9 to be arranged between first supporting component and second supporting component simultaneously, in other embodiments, also can adopt the bearing of other numbers as required, for example one or two are with first-class.
Among the above-mentioned various embodiment; Preferred between first supporting component and second supporting component through bearing realization rotation cooperation, in other embodiments, also can adopt other form as required; As long as can realize the rotation between first supporting component and second supporting component cooperates; Correspondingly, in other forms, sealing flange 11 and corresponding felt circle 10 etc. also can omit as required.
Among the above-mentioned various embodiment; First supporting component preferably includes first tapered sleeve 4, second tapered sleeve 6 and degree of tightness regulon, in other embodiments, also can adopt other form as required; Need only and to realize moving axially, and get final product with boring bar 3 rotation synchronously with respect to boring bar 3.
Among the above-mentioned various embodiment, second supporting component preferably includes support set 13 and supporting seat 2 etc., and support set 13 is clipped on the supporting seat 2 through clamping plate 14 etc.; In other embodiments; Support set 13 also can be installed on the supporting seat 2 through other form fix, in addition, and in other embodiments; Second supporting component also can adopt other forms, as long as can be through cooperating the supplemental support that realizes boring bar 3 with the rotation of first supporting component.
Among the above-mentioned various embodiment; This bracing or strutting arrangement in use is arranged on its base 1 on the bed ways, in other embodiments movably; This bracing or strutting arrangement can have the guide rail of self; Be arranged at movably on this guide rail and fall base 1, in use, this guide rail is set in parallel in the below of boring bar 3.
Among the above-mentioned various embodiment, be used to support boring bar 3 with this bracing or strutting arrangement and illustrate, in other embodiments, be not limited thereto, under the situation of not conflicting, also can this bracing or strutting arrangement be used to support the other forms of rotatable rod member that overhangs.
To sum up, the embodiment of the invention and based on the various modification of this embodiment and the bracing or strutting arrangement that expansion provided is carried out servo-actuated to the rotatable rod member that overhangs (like boring bar) and is supported through constituting first supporting component that rotation cooperates and second supporting component; In use, this bracing or strutting arrangement is arranged on the bearing of trend of said rod member, to guarantee the linearity of said rod member; Said rod member when rotated; Can drive first supporting component and in second supporting component, rotate, said rod member can move axially with respect to first supporting component when elastic; Promptly this bracing or strutting arrangement had both guaranteed the activity performance of said rod member; Can carry out excellent support to said rod member again, not only improve the stability and the service life of said rod member, and avoid said rod member to influence crudy because of producing moderate finite deformation.
The embodiment of the invention also provides a kind of lathe, and this lathe has above-mentioned any described bracing or strutting arrangement.For example, this lathe is for scraping roller, and this boring bar case of scraping roller links to each other through connectors such as chains with second supporting component, and this kind situation can be referring to the associated description of the foregoing description.Because above-mentioned bracing or strutting arrangement has above-mentioned technique effect, therefore, this lathe also has the corresponding techniques effect, and the practical implementation process of its appropriate section and above-mentioned similar is not given unnecessary details now.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. bracing or strutting arrangement; Be used for servo-actuated and support the rotatable rod member that overhangs; It is characterized in that: said bracing or strutting arrangement comprises first supporting component and second supporting component; Said first supporting component is used for being set in said rod member with moving axially, and said second supporting component cooperates with said first supporting component rotation.
2. bracing or strutting arrangement as claimed in claim 1 is characterized in that: said bracing or strutting arrangement also comprises bearing, and the inner ring of said bearing is set on said first supporting component, and said second supporting component is set on the outer ring of said bearing.
3. bracing or strutting arrangement as claimed in claim 2 is characterized in that: the number of said bearing is two, and said two bearings are provided with at interval.
4. bracing or strutting arrangement as claimed in claim 3 is characterized in that: be provided with spacer (8) between said two bearings.
5. bracing or strutting arrangement as claimed in claim 2; It is characterized in that: said bracing or strutting arrangement also comprises the sealing flange (11) on second supporting component that is installed on said bearing both sides, and the flange hole edge of said sealing flange (11) and said first supporting component are sealed and matched.
6. like each described bracing or strutting arrangement of claim 2 to 5; It is characterized in that: said first supporting component comprises first tapered sleeve (4) with male cone (strobilus masculinus) and second tapered sleeve (6) with inner conical surface; Said first tapered sleeve (4) is used for being set in said rod member with moving axially; Said second tapered sleeve (6) is set on said first tapered sleeve (4), and the inner ring of said bearing is set on said second tapered sleeve (6).
7. bracing or strutting arrangement as claimed in claim 6 is characterized in that: said second tapered sleeve (6) is provided with and can drives said first tapered sleeve (4) with respect to the axially movable degree of tightness regulating element of said second tapered sleeve (6).
8. like each described bracing or strutting arrangement of claim 2 to 5, it is characterized in that said second supporting component comprises:
Base (1);
Supporting seat (2) is fixedly arranged on the base (1);
Be set in the support set (13) on the outer ring of said bearing, be installed on the said supporting seat (2).
9. bracing or strutting arrangement as claimed in claim 8 is characterized in that: the outer shroud of said support set (13) is provided with groove (131), and said supporting seat (2) is provided with the convexity (21) that is complementary with said groove (131); The position of the upward contiguous said protruding elongated end of said supporting seat (2) is provided with and can compresses the clamping plate (14) that contacts with the bottom of said groove (131).
10. like each described bracing or strutting arrangement of claim 1 to 5, it is characterized in that: said bracing or strutting arrangement also comprises guide rail, and said second supporting component is arranged on the said guide rail movably.
11. a lathe is characterized in that:
Said lathe is provided with each described bracing or strutting arrangement of claim 1 to 9, also is provided with bed ways on the said lathe, and said rod member and said bed ways laterally arrange, and said second supporting component is arranged on the said bed ways movably; Perhaps
Said lathe is provided with the described bracing or strutting arrangement of claim 10, and said guide rail and said rod member laterally arrange.
12. lathe as claimed in claim 11 is characterized in that: said lathe is for scraping roller, and said rod member is boring bar (3), and the said boring bar case of scraping roller links to each other through connector with said second supporting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219489.2A CN102744616B (en) | 2012-06-28 | 2012-06-28 | Bracing or strutting arrangement and lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219489.2A CN102744616B (en) | 2012-06-28 | 2012-06-28 | Bracing or strutting arrangement and lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744616A true CN102744616A (en) | 2012-10-24 |
| CN102744616B CN102744616B (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210219489.2A Expired - Fee Related CN102744616B (en) | 2012-06-28 | 2012-06-28 | Bracing or strutting arrangement and lathe |
Country Status (1)
| Country | Link |
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| CN (1) | CN102744616B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121116A (en) * | 2013-03-18 | 2013-05-29 | 山东普利森集团有限公司 | Shock-absorbing boring bar |
| CN103481087A (en) * | 2013-09-22 | 2014-01-01 | 林春红 | Double-end machining air compressing machine tool clamping base with constant locking force and cooling function |
| CN105458748A (en) * | 2015-12-24 | 2016-04-06 | 张家口第一煤矿机械有限公司 | Lathe center frame and use method thereof |
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| DE102004033299B3 (en) * | 2004-07-08 | 2006-01-26 | Starragheckert Gmbh | Tool clamping unit in particular for processing inner surface of long object, comprising two asymmetrically shaped disks |
| CN2843679Y (en) * | 2005-08-18 | 2006-12-06 | 南京数控机床有限公司 | Bearing-ring style centering holder |
| CN201231327Y (en) * | 2008-06-13 | 2009-05-06 | 广西玉柴机器股份有限公司 | Boring-bar bearing device |
| CN201685105U (en) * | 2010-04-20 | 2010-12-29 | 重庆川东船舶重工有限责任公司 | Centering center rest support |
| CN202239704U (en) * | 2011-09-19 | 2012-05-30 | 广东天恒液压机械有限公司 | Shock-absorption guide structure device with adjustable deep hole boring rod for deep hole boring machine |
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2012
- 2012-06-28 CN CN201210219489.2A patent/CN102744616B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004033299B3 (en) * | 2004-07-08 | 2006-01-26 | Starragheckert Gmbh | Tool clamping unit in particular for processing inner surface of long object, comprising two asymmetrically shaped disks |
| CN2843679Y (en) * | 2005-08-18 | 2006-12-06 | 南京数控机床有限公司 | Bearing-ring style centering holder |
| CN201231327Y (en) * | 2008-06-13 | 2009-05-06 | 广西玉柴机器股份有限公司 | Boring-bar bearing device |
| CN201685105U (en) * | 2010-04-20 | 2010-12-29 | 重庆川东船舶重工有限责任公司 | Centering center rest support |
| CN202239704U (en) * | 2011-09-19 | 2012-05-30 | 广东天恒液压机械有限公司 | Shock-absorption guide structure device with adjustable deep hole boring rod for deep hole boring machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121116A (en) * | 2013-03-18 | 2013-05-29 | 山东普利森集团有限公司 | Shock-absorbing boring bar |
| CN103121116B (en) * | 2013-03-18 | 2015-08-12 | 山东普利森集团有限公司 | Damping boring bar |
| CN103481087A (en) * | 2013-09-22 | 2014-01-01 | 林春红 | Double-end machining air compressing machine tool clamping base with constant locking force and cooling function |
| CN103481087B (en) * | 2013-09-22 | 2016-08-03 | 林春红 | There is constant locking force and band refrigerating function both-end processing pneumatics toolroom machine holder |
| CN105458748A (en) * | 2015-12-24 | 2016-04-06 | 张家口第一煤矿机械有限公司 | Lathe center frame and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744616B (en) | 2015-09-02 |
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Effective date of registration: 20151016 Address after: 201400, Shanghai, Fengxian District, 19 Lang Road, No. 3 Patentee after: SHANGHAI BRANCH OF SANY GROUP CO., LTD. Address before: 201413, No. two, 318 Avenue, Lingang Industrial Park, Shanghai, Fengxian District Patentee before: Seiki Co., Ltd. Shanghai Sany |
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Granted publication date: 20150902 Termination date: 20170628 |
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