CN204036241U - Tractor - Google Patents
Tractor Download PDFInfo
- Publication number
- CN204036241U CN204036241U CN201420348145.6U CN201420348145U CN204036241U CN 204036241 U CN204036241 U CN 204036241U CN 201420348145 U CN201420348145 U CN 201420348145U CN 204036241 U CN204036241 U CN 204036241U
- Authority
- CN
- China
- Prior art keywords
- tractor
- rocker piece
- lower cover
- block
- shift fork
- 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 - Lifetime
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 229920003266 Leaf® Polymers 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000009191 jumping Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 13
- 238000003754 machining Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
Abstract
The utility model provides a kind of tractor, and described tractor comprises adjusts central block, top, driving member, lower cover, slide block, spring leaf, finger, shift fork block, Bai Gang, upper cover plate, outer ring, rocker piece, little briquetting.As can be seen here, tractor that the utility model provides coordinates the manipulator of automatic charging feeding or robot and automatic detection device, the Unmanned operation from blank material loading, clamping, processing, measurement, the whole process circulation of feeding can be completed, namely the full-automation of cylindrical grinder field of machining is completed, thus greatly improve working (machining) efficiency, and reduce cost of labor, fill up the blank of domestic technique application, improve the level of grinding machine automatic industrial.
Description
Technical field
The utility model relates to a kind of grip device for cylindrical grinder mill shaft-like workpiece, specifically, relates to a kind of tractor for slender type axis products.
Background technology
At present, the fixture being suitable for cylindrical grinder grinding in prior art roughly has several: 1, heart-shaped fixture: a kind of cylindrical grinder grinding application a kind of fixture very widely, is characterized in convenient mounting and clamping, but at the bottom of efficiency, can only artificial clamping, its automation clamping workpiece can not be realized; 2, Three-jaw fixture: a kind of fixture being applicable to cylindrical grinder processing, be characterized in that the clamping time is longer, can only artificial clamping, and need time adjustment when coordinating with cylindrical grinder, be only applicable to shorter, that precision is not high shaft-like workpiece, its automation clamping workpiece can not be realized; 3, collet chuck: a kind of fixture being applicable to cylindrical grinder processing, although automation clamping can be realized, need the annex such as oil cylinder or cylinder to realize its automatic function when coordinating with cylindrical grinder, add equipment cost, and the process need time of calibration, be only applicable to shorter shaft-like workpiece; 4, tractor: a kind of fixture being applicable to cylindrical grinder processing, be similar to the application, but weak point is, clamping work pieces easily skids later, not clamping, and volume is large, heavier.
In sum, all there is following shortcoming in existing several fixture being applicable to cylindrical grinder: can not be applicable to automation processing, the folder time is long, easily skids, affect working (machining) efficiency after clamping; Need time adjustment when coordinating with lathe, machining accuracy is not high and scope that is that use is subject to the restriction of workpiece.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of tractor, to overcome defect of the prior art.
To achieve these goals, the utility model provides a kind of tractor, described tractor comprises transmission cavity, driving member, three fingers, three shift fork blocks and three white steel, wherein, described transmission cavity is a circular cylindrical cavity with centre bore, the shell of described transmission cavity is by lower cover, upper cover plate and outer ring composition, described lower cover and described upper cover plate are covered on the left and right sides of described outer ring respectively, slide block is provided with in the inner chamber of described transmission cavity, adjust central block, rocker piece and rocker piece pin, described slide block is arranged at the right upper portion center of described lower cover, the right-hand member of described slide block 12 is provided with a pin, the right flank of described tune central block 20 is provided with a circular groove, the lower central place of described circular groove is provided with the first U-type groove, the left surface central upper portion place of described tune central block 20 is provided with the second U-type groove, described pin is inserted in described second U-type groove, to do tangential motion along described second U-type groove, described rocker piece is stuck in described circular groove, the its right end face of described rocker piece is provided with a Y type boss, the left lower of described rocker piece is provided with a pin-and-hole, rocker piece pin is inserted with in described pin-and-hole, the other end of described rocker piece pin is arranged in the first U-type groove, to do tangential motion along described first U-type groove, described driving member is arranged at the left upper portion center of described lower cover, and described driving member and described slide block are connected with each other, to realize transmission, described three white steel are connected on the Y type boss of described rocker piece in uniform way, be uniformly distributed to described three fingers and described three Bai Gangtong angles and lock onto its right end face of described upper cover plate, described three shift fork blocks offer separately a circular hole and a U-shaped groove, described three white steel are inserted in the respective described circular hole on described three shift fork blocks respectively, and fix with the respective described circular hole matched in clearance on described three shift fork blocks respectively, described three fingers are inserted in the respective described U-shaped groove on described three shift fork blocks respectively, and respectively with the respective described U-shaped groove matched in clearance on described three shift fork blocks.
As further illustrating tractor described in the utility model, preferably, the second needle bearing and copper oil sealing block is provided with in the centre bore of described tune central block.
As further illustrating tractor described in the utility model, preferably, described second needle bearing is positioned at its right end face of described lower cover, and described copper oil sealing block is positioned at its right end face of the second needle bearing, enters in described second needle bearing to prevent oil, water smoke and dust.
As further illustrating tractor described in the utility model, preferably, the below of the left and right sides of described lower cover is provided with two balance weights symmetrically, prevents described tractor generation skidding with counterweigh.
As further illustrating tractor described in the utility model, preferably, six spring leafs are arranged with in the circular groove of the right flank of described tune central block, described six spring leafs are end to end formation one regular hexagon each other, described rocker piece is arranged at described orthohexagonal inside, jumps with the radial direction controlling described rocker piece.
As further illustrating tractor described in the utility model, preferably, the right flank of described tune central block has three little briquettings by screw locking, to push down the outer edge of described rocker piece, described rocker piece is axially positioned in the circular groove of described tune central block right flank, and is axially jumping.
As further illustrating tractor described in the utility model, preferably, be equipped with No. four, Mohs top in the centre bore of described lower cover, No. four, described Mohs is top to be connected with the lathe head transmission shaft of cylindrical grinder.
As further illustrating tractor described in the utility model, preferably, the top outer right wall of No. four, described Mohs is arranged with two the first needle bearings, and is connected with described lower cover, and the outside of described first needle bearing is also arranged with bearing holder (housing, cover).
As further illustrating tractor described in the utility model, preferably, the top its right end face of No. four, described Mohs is provided with a jump-ring slot, be arranged with a jump ring of its right end face being positioned at described copper oil sealing in described jump-ring slot, described first needle bearing and described bearing holder (housing, cover) are fastened between the top its right end face of No. four, described Mohs and described jump-ring slot.
As further illustrating tractor described in the utility model, preferably, also be folded with copper backing between the top and described bearing holder (housing, cover) of No. four, described Mohs, described copper backing is for adjusting the fit-up gap between the top right side of No. four, described Mohs and described jump-ring slot.
As can be seen here, the tractor that the utility model provides in use, only needs when coordinating with cylindrical grinder, by No. 4, the Mohs of top for Mohs insertion machine bed head frame standard or the spindle taper hole of No. 3, Mohs, need not adjust correction, and assembling is simple; Cooperative mechanical hand and robot use, and can realize, from the full-automatic unmannedization operation of blank material loading, clamping, processing, measurement, the whole process circulation of feeding, reducing cost of labor, decreasing the clamping time, improve working (machining) efficiency.When lathe needs adjustment, also the debugging of artificial clamping workpiece can be realized, 50 ~ 300mm can be about by processing work length range, applied widely, when the external diameter of workpiece changes, only need to change the demand that fork block of the present utility model can meet processing different workpieces, the diameter of work scope that can clamp is about 5 ~ 20mm.When the diameter of work processed is in the clamping range of this tractor, non-slip after clamping, can processing request be met, and good looking appearance, light and handy.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of tractor of the present utility model;
Fig. 2 is the sectional view of tractor of the present utility model;
Fig. 3 A and Fig. 3 B is the installation diagram of tractor of the present utility model.
Description of reference numerals is as follows:
Little briquetting 1, rocker piece 2, outer ring 3, upper cover plate 4, Bai Gang 5, shift fork block 6, finger 7, spring leaf 8, copper oil sealing block 9, rocker piece pin 10, second needle bearing 11, slide block 12, balance weight 13, lower cover 14, driving member 15, bearing holder (housing, cover) 16, first needle bearing 17, top 18, copper backing 19, adjust central block 20.
Detailed description of the invention
Structure of the present utility model, feature and other objects is understood further in order to enable auditor, preferred embodiment appended by now combining is accompanied by accompanying drawing and is described in detail as follows, embodiment illustrated by this accompanying drawing is only for illustration of the technical solution of the utility model, and non-limiting the utility model.
First, please refer to Fig. 1 and Fig. 2, Fig. 1 is the decomposition texture schematic diagram of tractor of the present utility model, and Fig. 2 is the sectional view of tractor of the present utility model.As depicted in figs. 1 and 2, the tractor that the utility model provides comprises transmission cavity, driving member 15, three fingers 7, three shift fork blocks 6 and three white steel 5.Wherein, please further refer to Fig. 3 B, Fig. 3 B be the installation diagram of tractor of the present utility model.As shown in Figure 3 B, transmission cavity of the present utility model is a circular cylindrical cavity with centre bore, and the shell of transmission cavity is made up of lower cover 14, upper cover plate 4 and outer ring 3, and lower cover 14 and upper cover plate 4 are covered on the left and right sides of outer ring 3 respectively.And as illustrated in fig. 1 and 2, slide block 12 is provided with in the inner chamber of transmission cavity, adjust central block 20, rocker piece 2 and rocker piece pin 10, slide block 12 is arranged at the right upper portion center of lower cover 14, the right-hand member of slide block 12 is provided with a pin, the right flank of central block 20 is adjusted to be provided with a circular groove, the lower central place of described circular groove is provided with the first U-type groove, the central upper portion place of the left surface adjusting central block 20 is provided with the second U-type groove, the pin of slide block 12 is inserted in described second U-type groove, to do tangential motion along described second U-type groove.Rocker piece 2 is stuck in described circular groove, the its right end face of rocker piece 2 is provided with a Y type boss, the left lower of rocker piece 2 is provided with a pin-and-hole, rocker piece pin 10 is inserted with in described pin-and-hole, the other end of rocker piece pin 10 is arranged in the first U-type groove of the right flank adjusting central block 20, to do tangential motion along described first U-type groove.Thus, when slide block 12 starts to drive tune central block 20 to rotate, the pin of its right-hand member does tangential motion along adjusting second U-type groove on central block 20 left surface top, thus drives rotating and reverse of tune central block 20.When adjusting central block 20 first to rotate, then driving rocker piece 2 to rotate again by rocker piece pin 10, then forming follow-up action.
Composition graphs 1 and Fig. 2 visible, driving member 15 is arranged at the left upper portion center of lower cover 14, and slide block 12 is arranged at the right upper portion center of lower cover 14, and driving member 15 and slide block 12 are connected with each other, to realize transmission, the rotation by cylindrical grinder sends tractor of the present utility model to.Three white steel 5 are connected on the Y type boss of rocker piece 2 in uniform way, three fingers 7 and three uniform its right end face locking onto upper cover plate 4 in white steel 5 equal angular ground, three shift fork blocks 6 offer separately a circular hole and a U-shaped groove, three white steel 5 are inserted in the respective described circular hole on three shift fork blocks 6 respectively, and fix with the respective described circular hole matched in clearance on three shift fork blocks 6 respectively, three fingers 7 are inserted in the respective described U-shaped groove on three shift fork blocks 6 respectively, and respectively with the respective described U-shaped groove matched in clearance on three shift fork blocks 6.As can be seen here, the tractor that the utility model provides by offering a circular hole and a U-shaped groove on three shift fork blocks 6, and circular hole and white steel 5 matched in clearance are fixed, and freely can rotate, thus play the effect of location.And U-shaped groove and finger 7 matched in clearance, when rocker piece 2 rotates, three white steel 5 can and then rotate, and then drive three shift fork blocks 6 to rotate, and now the U-shaped groove of three shift fork blocks 6 matches with three fingers 7, thus play directed effect.
Further, as shown in Figure 1, adjust central block 20 centre bore in be provided with the second needle bearing 11 and copper oil sealing block 9.Second needle bearing 11 is positioned its right end face of lower cover 14, and copper oil sealing block 9 is positioned its right end face of the second needle bearing 11, enters in the second needle bearing 11 to prevent oil, water smoke and dust.Thus, when driving member 15 drives slide block 12 to rotate, then slide block 12 drives and adjusts central block 20 to rotate, and adjusts central block 20 circular-rotation to come by the second needle bearing 11.Copper oil sealing block 9 is arranged in the centre bore of tune central block 20, locate with the right flank of the second needle bearing 11, left surface is by jump ring location, and the effect of copper oil sealing block 9 prevents oil and water smoke and dust from entering in the second needle bearing 11, affects its service behaviour and service life.
In order to realize counterweigh, the below of the left and right sides of lower cover 14 of the present utility model is provided with two balance weights 13 symmetrically, thus when the haulage gear of lathe drives driving member 15 to rotate, because driving member 15 is arranged at the left upper portion center of lower cover 14, and two balance weights 13 are arranged at the lower central place of the left and right sides of lower cover 14, like this while whole tractor rotates, balance weight 13 plays the effect of counterweigh, and tractor can not be skidded when clamping work pieces.
In addition, adjust in the circular groove of the right flank of central block 20 and be arranged with six spring leafs, 8, six spring leafs 8 end to end formation one regular hexagon each other, rocker piece 2 is arranged at described orthohexagonal inside, jumps with the radial direction controlling rocker piece 2.Adjust the right flank of central block 20 to have three little briquettings 1 by screw locking, to push down the outer edge of rocker piece 2, rocker piece 2 is axially positioned in the circular groove of tune central block 20 right flank, and is axially jumping.
As can be seen here, the utility model defines the regular hexagon of a standard by utilizing six spring leafs 8, rocker piece 2 is arranged at the orthohexagonal inside that spring leaf 8 forms standard, the end face of rocker piece 2 is by adjusting the right flank location of central block 20, three little briquetting 1 right flanks of screw locking at tune central block 20, rocker piece 2 is pushed down in effect, be axially positioned in the circular groove of tune central block 20 right flank, but be not compress completely, it is made axially to jump, because spring leaf 8 is flexible, so jump when rocker piece 2 also has certain radial direction when spring leaf 8 forms the orthohexagonal inside of a standard, when driving tune central block 20 to rotate when slide block 12 rotates, by the effect of rocker piece pin 10, rocker piece 2 is driven to rotate together, and then drive shift fork block 6 to rotate together, thus form clamping, unclamp the effect of workpiece.And the effect jumped is when rocker piece 2 rotates, three white steel 5 can and then rotate, and then drive three shift fork blocks 6 to rotate, like this will clamping work pieces, when lathe starts grinding, due to the effect by grinding force, can be jumped by rocker piece 2, just can correct or reduce the error that clamping brings, along with the effect of grinding force changes center, the workpiece processed so just can ensure its very strict circularity requirement.
Please continue to refer to Fig. 1, in the tractor that the utility model provides, Mohs No. four top 18 are equipped with in the centre bore of lower cover 14, Mohs No. four top 18 is connected with the lathe head transmission shaft of cylindrical grinder, thus when coordinating with cylindrical grinder, only need, by No. four, the Mohs of top for No. four, Mohs of the present utility model 18 insertion machine bed head frame standards or the spindle taper hole of No. three, Mohs, need not adjust correction, assembling is simple.Further, as shown in Figure 1, the outer right wall that Mohs of the present utility model is No. four top 18 is arranged with two the first needle bearings 17, and is connected with lower cover 14, and the outside of the first needle bearing 17 is also arranged with bearing holder (housing, cover) 16.
Please simultaneously composition graphs 1 and Fig. 2, the its right end face that Mohs of the present utility model is No. four top 18 is provided with a jump-ring slot, be arranged with a jump ring of its right end face being positioned at copper oil sealing 9 in described jump-ring slot, the first needle bearing 17 and bearing holder (housing, cover) 16 are fastened between its right end face of top 18 and described jump-ring slot.Also be folded with copper backing 19 between Mohs No. four top 18 and bearing holder (housing, cover) 16, copper backing 19 is for adjusting the fit-up gap between the right side of top 18 and described jump-ring slot.
As can be seen here, the tractor that the utility model provides in use, only needs when coordinating with cylindrical grinder, by No. 4, the Mohs of top for Mohs insertion machine bed head frame standard or the spindle taper hole of No. 3, Mohs, need not adjust correction, and assembling is simple; Cooperative mechanical hand and robot use, and can realize, from the full-automatic unmannedization operation of blank material loading, clamping, processing, measurement, the whole process circulation of feeding, reducing cost of labor, decreasing the clamping time, improve working (machining) efficiency.When lathe needs adjustment, also the debugging of artificial clamping workpiece can be realized, 50 ~ 300mm can be about by processing work length range, applied widely, when the external diameter of workpiece changes, only need to change the demand that fork block of the present utility model can meet processing different workpieces, the diameter of work scope that can clamp is about 5 ~ 20mm.When the diameter of work processed is in the clamping range of this tractor, non-slip after clamping, can processing request be met, and good looking appearance, light and handy.
It is to be understood that, above-mentioned utility model content and detailed description of the invention be intended to prove the utility model the practical application of technical scheme is provided, should not be construed as the restriction to the utility model protection domain.Those skilled in the art in spirit of the present utility model and principle, when doing various amendment, equivalent replace or improve.Protection domain of the present utility model is as the criterion with appended claims.
Claims (10)
1. a tractor, is characterized in that, described tractor comprises transmission cavity, driving member (15), three fingers (7), three shift fork blocks (6) and three white steel (5), wherein,
Described transmission cavity is a circular cylindrical cavity with centre bore, the shell of described transmission cavity is by lower cover (14), upper cover plate (4) and outer ring (3) composition, lower cover (14) and upper cover plate (4) are covered on the left and right sides of outer ring (3) respectively, slide block (12) is provided with in the inner chamber of described transmission cavity, adjust central block (20), rocker piece (2) and rocker piece pin (10), slide block (12) is arranged at the right upper portion center of lower cover (14), the right-hand member of slide block (12) is provided with a pin, the right flank of central block (20) is adjusted to be provided with a circular groove, the lower central place of described circular groove is provided with the first U-type groove, the second U-type groove is provided with adjusting the left surface central upper portion place of central block (20), described pin is inserted in described second U-type groove, to do tangential motion along described second U-type groove, rocker piece (2) is stuck in described circular groove, the its right end face of rocker piece (2) is provided with a Y type boss, the left lower of rocker piece (2) is provided with a pin-and-hole, rocker piece pin (10) is inserted with in described pin-and-hole, the other end of rocker piece pin (10) is arranged in the first U-type groove, to do tangential motion along described first U-type groove,
Driving member (15) is arranged at the left upper portion center of lower cover (14), and driving member (15) and slide block (12) are connected with each other, to realize transmission;
Three white steel (5) are connected on the Y type boss of rocker piece (2) in uniform way, three fingers (7) and three white steel (5) are uniformly distributed with angle and lock onto its right end face of upper cover plate (4), three shift fork blocks (6) offer separately a circular hole and a U-shaped groove, three white steel (5) are inserted in the respective described circular hole on three shift fork blocks (6) respectively, and fix with the respective described circular hole matched in clearance on three shift fork blocks (6) respectively, three fingers (7) are inserted in the respective described U-shaped groove on three shift fork blocks (6) respectively, and respectively with the respective described U-shaped groove matched in clearance on three shift fork blocks (6).
2. tractor as claimed in claim 1, is characterized in that, adjusts in the centre bore of central block (20) and is provided with the second needle bearing (11) and copper oil sealing block (9).
3. tractor as claimed in claim 2, it is characterized in that, second needle bearing (11) is positioned at its right end face of lower cover (14), copper oil sealing block (9) is positioned at its right end face of the second needle bearing (11), enters in the second needle bearing (11) to prevent oil, water smoke and dust.
4. tractor as claimed in claim 3, it is characterized in that, the below of the left and right sides of lower cover (14) is provided with two balance weights (13) symmetrically, prevents described tractor generation skidding with counterweigh.
5. tractor as claimed in claim 1, it is characterized in that, adjust in the described circular groove of the right flank of central block (20) and be arranged with six spring leafs (8), six spring leafs (8) end to end formation one regular hexagon each other, rocker piece (2) is arranged at described orthohexagonal inside, jumps with the radial direction controlling rocker piece (2).
6. tractor as claimed in claim 1, it is characterized in that, the right flank of central block (20) is adjusted to have three little briquettings (1) by screw locking, to push down the outer edge of rocker piece (2), rocker piece (2) is axially positioned in the described circular groove of tune central block (20) right flank, and is axially jumping.
7. the tractor as described in as arbitrary in claim 1 ~ 6, it is characterized in that, be equipped with No. four, Mohs top (18) in the centre bore of lower cover (14), No. four, Mohs top (18) is connected with the lathe head transmission shaft of cylindrical grinder.
8. tractor as claimed in claim 7, it is characterized in that, the outer right wall of No. four, Mohs top (18) is arranged with two the first needle bearings (17), and be connected with lower cover (14), the outside of the first needle bearing (17) is also arranged with bearing holder (housing, cover) (16).
9. tractor as claimed in claim 8, it is characterized in that, the its right end face of No. four, Mohs top (18) is provided with a jump-ring slot, a jump ring of its right end face being positioned at copper oil sealing (9) is arranged with, between its right end face that the first needle bearing (17) and bearing holder (housing, cover) (16) are fastened on No. four, Mohs top (18) and described jump-ring slot in described jump-ring slot.
10. tractor as claimed in claim 8, it is characterized in that, also be folded with copper backing (19) between No. four, Mohs top (18) and bearing holder (housing, cover) (16), copper backing (19) is for adjusting the fit-up gap between the right side of No. four, Mohs top (18) and described jump-ring slot.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420348145.6U CN204036241U (en) | 2014-06-25 | 2014-06-25 | Tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201420348145.6U CN204036241U (en) | 2014-06-25 | 2014-06-25 | Tractor |
Publications (1)
Publication Number | Publication Date |
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CN204036241U true CN204036241U (en) | 2014-12-24 |
Family
ID=52236949
Family Applications (1)
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CN201420348145.6U Expired - Lifetime CN204036241U (en) | 2014-06-25 | 2014-06-25 | Tractor |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105196169A (en) * | 2014-06-25 | 2015-12-30 | 东莞市德威精密机械有限公司 | Tractor |
-
2014
- 2014-06-25 CN CN201420348145.6U patent/CN204036241U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105196169A (en) * | 2014-06-25 | 2015-12-30 | 东莞市德威精密机械有限公司 | Tractor |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20141224 |