CN103386620A - Hub processing friction type secondary fine positioning mechanism - Google Patents
Hub processing friction type secondary fine positioning mechanism Download PDFInfo
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- CN103386620A CN103386620A CN2013103406370A CN201310340637A CN103386620A CN 103386620 A CN103386620 A CN 103386620A CN 2013103406370 A CN2013103406370 A CN 2013103406370A CN 201310340637 A CN201310340637 A CN 201310340637A CN 103386620 A CN103386620 A CN 103386620A
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- wheel hub
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- 238000012545 processing Methods 0.000 title abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 53
- 239000010931 gold Substances 0.000 claims description 46
- 229910052737 gold Inorganic materials 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of hub processing equipment, in particular to a hub processing friction type secondary fine positioning mechanism. The hub processing friction type secondary fine positioning mechanism comprises a bottom plate, a gasket, a gasket cushion block and a rotation pressing device, wherein the gasket and the gasket cushion block are used for supporting a hub; the rotation pressing device is used for pressing the hub to be processed against the gasket; the gasket cushion block is fixed on the bottom plate; the gasket is fixed on the gasket cushion block; a convex positioning bolt which is used for stopping a positioning bump from passing is further arranged on the gasket; a stirring device which is used for stirring a hub body is further arranged on the bottom plate and comprises a friction wheel and a friction wheel driving device which is arranged on the bottom plate. The hub processing friction type secondary fine positioning mechanism has the beneficial effects that the mechanism can accurately position the hub, and is ingenious in design and reasonable in structure; one of through holes to be processed in the hub needs to be aligned while the rest do not need to be positioned, and direct drilling is performed; the accuracy is ensured, and the production efficiency is improved.
Description
Technical field
The present invention relates to the wheel hub technical field of processing equipment, relate in particular to a kind of wheel hub processing friction-type secondary fine detent mechanism.
Background technology
Tire itself is software, and in tire, the drum-shaped De, center of wide support tire is that the parts that are contained on axle just are wheel hub.Along with the development of wheel hub industry, also more and more higher to the quality requirement of wheel hub, no matter be that mechanical performance or the requirement of dimensional tolerance have strict regulation requirement.With regard to the wheel hub industry, the bias of wheel hub is to perplex a large common fault of manufacturer always, and a lot of producers all solve eccentricity issues seeking a kind of better method.
On a lot of wheel hub part circumference, the ideal position in hole is determined by a plurality of benchmark such as keyway, plane, cylindricals simultaneously, and the position degree in this class hole requires high.At present wheel hub adds man-hour, wheel hub need to be positioned on machine table, after having good positioning, then wheel hub is carried out the processing such as groove milling boring, because the processing request precision such as groove milling boring are all very high, so the location of wheel hub has been proposed high requirement.During the wheel hub processing sets up, the center of circle of looking for wheel hub trouble and easily the people, for makeing mistakes, greatly affected process velocity, reduced the efficiency of processing.
the wheel hub that the present invention need to process such as Fig. 1, shown in 2, the mandrel 2 that it comprises hub body 1 and is located in hub body 1 center, mandrel 2 evaginations are the first prominent circle in the part of the lower surface of hub body 1, hub body 1 lower surface also evagination has around the first prominent the second prominent circle 1-2 that encloses, because the first prominent circle is dashed forward and enclosed 1-2 higher than second, therefore its raised area has formed locator card platform 2-1, the lower surface of described hub body 1 also evagination to have in a plurality of petal positioning convex 1-3(figure that is distributed on around the second prominent circle 1-2 be five positioning convex 1-3, also increase and decrease as required number), the outer convex surface of positioning convex 1-3 and the second prominent circle 1-2 is at same plane, there is locating dowel 3 lower end of mandrel 2 also integrative-structure, the external diameter of locating dowel 3 is slightly smaller than the external diameter of mandrel 2, it is excessive that both junctions are rounded corner.The present invention need to offer through hole 1-1 at each positioning convex 1-3De center of as shown in Figure 1, 2 wheel hub, because its overall structure is special, locate very difficult, if through hole bias, to cause all through holes all eccentric, this shows, develop a kind of frock of positioning fixture accurately, is the technical problem that those skilled in the art are badly in need of solving.
Summary of the invention
The technical problem to be solved in the present invention is:, in order to locate more accurately wheel hub processing, the invention provides a kind of wheel hub processing friction-type secondary fine detent mechanism.
the technical solution adopted for the present invention to solve the technical problems is: a kind of wheel hub processing friction-type secondary fine detent mechanism, comprise base plate, be used for setting off the seat gold of wheel hub, the golden cushion block of seat and be used for wheel hub to be processed is compressed rotary compacting device on present gold, the golden cushion block of described seat is fixed on base plate, on the fixing present golden cushion block of seat gold, the center of described seat gold and the golden cushion block of seat offers respectively be used to the first centre bore that holds the wheel hub locating dowel and the second centre bore, the first centre bore is consistent with the second center hole size, the outer ring of described the first centre bore and locator card platform is complementary,
Offer the circular cavity of indent on described base plate, described circular cavity, the first centre bore and the coaxial setting of the second centre bore, the internal diameter of circular cavity is slightly larger than the internal diameter of the second centre bore and less than the external diameter of seat gold cushion block, the height sum of the first centre bore and the second centre bore is at least greater than the height of locating dowel, the degree of depth of circular cavity is slightly larger than or equals the height of locator card platform
Described seat gold upper also offers the working groove that on a plurality of and wheel hub, lead to the hole site to be processed is complementary, and setting any two adjacent working grooves is the first working groove and the second working groove, offers step between described the first working groove and the second working groove,
Also be provided with the bolt that is used for keeping out the positioning convex process of evagination on described seat gold, described bolt is positioned at the side of the first working groove away from the second working groove,
Also be provided with the striking gear that rotates be used to stirring hub body on described base plate, described striking gear comprises friction pulley and the fraction wheel drive device of present golden side is installed, intersect the excircle configuration of described friction pulley and the outer ring of hub body to be processed, for the ease of being arranged under the crossing condition in the excircle configuration that guarantees friction pulley and the outer ring of hub body to be processed, described friction pulley outer ring also is processed with tangent plane, i.e. the cut-out friction pulley.
wheel hub processing friction-type secondary fine detent mechanism of the present invention can accurately be located wheel hub, bolt is the reference point that sets in advance, when any one positioning convex is positioned bolt while keeping out, can control one of them through hole to be processed and working groove aligns, all the other through holes to be processed also all can accurately be located, during operation, stir wheel hub to be processed by the rotation of friction pulley, when the positioning convex of wheel hub turns to bolt, can not rotate again owing to being subject to keeping out of bolt, make through hole to be processed and working groove on wheel hub align, play accurate location.
In order to compress wheel hub, be convenient to processing, described rotary compacting device comprises and is arranged on base plate the symmetrical cylinder that rotatably compresses that is positioned at the golden both sides of seat, rotatably compress on the external part of piston rod of cylinder and be provided with the depression bar vertical with the piston rod axis, the below, end of depression bar is fixed with the briquetting for the hub body on the pressed seat gold.
Eccentric while for fear of hub body, rotating, the golden outer ring of described seat is slightly larger than the outer ring of the golden cushion block of seat, and the outer ring of seat gold also is provided with the rib higher than the seat gold.
Rotate for the ease of friction pulley, described step has athwartship plane and longitudinal surface, described athwartship plane extends to the first working groove, the second working groove and the golden outer ring of seat, and athwartship plane is lower than friction pulley, and longitudinal surface extends to the upper surface of the first working groove, the second working groove and seat gold.
For the ease of fraction wheel drive device is installed, the secondary fine detent mechanism also comprises the bolt that is set with spring, the golden outer ring of seat between described the first working groove and the second working groove is processed with the golden tangent plane of seat, offer bolt mounting holes on the golden tangent plane of described seat, described fraction wheel drive device comprises tilt cylinder and output shaft, described output shaft parallels with the axis of seat gold, friction pulley is sleeved on output shaft, described bolt penetrates the be fixed outside of present golden tangent plane of tilt cylinder, and described spring is between the top of tilt cylinder and bolt.
Can to process simultaneously wheel hub by a plurality of unit with wheel hub of the present invention processing friction-type secondary fine detent mechanism as a unit in order increasing work efficiency, to share one between adjacent Unit two and rotatably compress cylinder and get final product.
The invention has the beneficial effects as follows, wheel hub processing friction-type secondary fine detent mechanism of the present invention can accurately be located wheel hub, designs ingenious, rational in infrastructure, on wheel hub, through-hole alignment to be processed is one, and all the other all need not in location, directly Drilling operation, also improved production efficiency when guaranteeing precision.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the present invention's wheel hub to be processed;
Fig. 2 is another visual angle structural representation of the present invention's wheel hub to be processed;
Fig. 3 is the structural representation of base plate of the present invention;
Fig. 4 is the structural representation of seat gold of the present invention;
Fig. 5 is the structural representation of seat gold cushion block of the present invention;
Fig. 6 is the structural representation of wheel hub processing friction-type secondary fine detent mechanism of the present invention;
Fig. 7 is the partial structurtes schematic diagram of wheel hub processing friction-type secondary fine detent mechanism of the present invention.
in figure: 1, hub body, 1-1, through hole, 1-2, the second prominent circle, 1-3, positioning convex, 2, mandrel, 2-1, the locator card platform, 3, locating dowel, 4, base plate, 4-1, circular cavity, 5, the seat gold, 5-1, the first working groove, 5-2, the second working groove, 5-3, rib, 5-4, the first centre bore, 5-5, the golden tangent plane of seat, 5-6, bolt mounting holes, 6, the golden cushion block of seat, 6-1, the second centre bore, 7, friction pulley, 7-1, tangent plane, 8, rotatably compress cylinder, 8-1, piston rod, 8-2, depression bar, 8-3, briquetting, 9-1, athwartship plane, 9-2, longitudinal surface, 10, tilt cylinder, 11, output shaft, 12, bolt, 13, bolt.
The specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
as shown in Fig. 3-6, optimum embodiment of the present invention, comprise base plate 4, be used for setting off the seat gold 5 of wheel hub, the golden cushion block 6 of seat and be used for the hub body of wheel hub to be processed 1 is compressed rotary compacting device on 5 of present gold, the golden cushion block 6 of seat is fixed on base plate 4, on the fixing present golden cushion block 6 of seat gold 5, offer the circular cavity 4-1 of three indents side by side on base plate 4, seat gold 5 and the golden cushion block 6 of seat also are three, corresponding with three circular cavity 4-1, the center of seat gold 5 and the golden cushion block 6 of seat offers respectively be used to the first centre bore 5-4 that holds wheel hub locating dowel 3 and the second centre bore 6-1, circular cavity 4-1, the first centre bore 5-4 and the second coaxial setting of centre bore 6-1, the first centre bore 5-4 and the second centre bore 6-1 in the same size, the outer ring of the first centre bore 5-4 and locator card platform 2-2 is complementary, the internal diameter of circular cavity 4-1 is slightly larger than the internal diameter of the second centre bore 6-1 and less than the external diameter of seat gold cushion block 6, the height sum of the first centre bore 5-4 and the second centre bore 6-1 is at least greater than the height of locating dowel 3, the degree of depth of circular cavity 4-1 is slightly larger than or equals the height of locator card platform 2-2, seat gold 5 upper also offers the working groove that on a plurality of and wheel hub 1, through hole 1-1 to be processed is complementary, setting any two adjacent working grooves on each gold 5 is the first working groove 5-1 and the second working groove 5-2, the other rotary compacting device that is equipped with of each gold 5, rotary compacting device comprise be arranged on base plate 4 symmetrical be positioned at golden 5 both sides of seat rotatably compress cylinder 8, rotatably compress on the external part of piston rod 8-1 of cylinder 8 and be provided with the depression bar 8-2 vertical with piston rod 8-1 axis, the below, end of depression bar 8-2 is fixed with the briquetting 8-3 for the hub body 1 on pressed seat gold 5, share one between adjacent two seat gold 5 in the present embodiment and rotatably compress cylinder 8, need four altogether and rotatably compress cylinder 8, middle two rotatably compress cylinder 8 and adopt the both arms depression bar, the cylinder 8 that rotatably compresses of both sides adopts the single armed depression bar.
Also be provided with three groups on base plate 4 and be used for stirring the striking gear that hub body 1 is rotated, every group of striking gear comprises friction pulley 7 and the fraction wheel drive device of present golden 5 sides is installed, the excircle configuration of the excircle configuration of friction pulley 7 and hub body to be processed 1 intersects, and friction pulley 7 outer rings also are processed with tangent plane 7-1.Secondary fine detent mechanism of the present invention also comprises the bolt 13 that is set with spring, golden 5 outer rings of seat between the first working groove 5-1 and the second working groove 5-2 are processed with the golden tangent plane 5-5 of seat, offer bolt mounting holes 5-6 on the golden tangent plane 5-5 of seat, fraction wheel drive device comprises tilt cylinder 10 and output shaft 11, output shaft 11 parallels with the axis of seat gold 5, friction pulley 7 is sleeved on output shaft 11, bolt 13 penetrates the be fixed outside of present golden tangent plane 5-5 of tilt cylinder 10, and spring is between the top of tilt cylinder 10 and bolt 13.Also offer step between the first working groove 5-1 and the second working groove 5-2, step has athwartship plane 9-1 and longitudinal surface 9-2, athwartship plane 9-1 extends to the first working groove, the second working groove 5-2 and golden 5 outer rings of seat, and athwartship plane 9-1 is lower than friction pulley 7, longitudinal surface 9-2 extends to the upper surface of the first working groove, the second working groove 5-2 and seat gold 5, and having formed can be for the space of friction pulley 7 motions.
Also be provided with the bolt 12 that is used for keeping out positioning convex 1-3 process of evagination on seat gold 5, bolt 12 is positioned at the side of the first working groove 5-1 away from the second working groove 5-2, golden 5 outer rings of seat are slightly larger than the outer ring of the golden cushion block 6 of seat, and the outer ring of seat gold 5 also is provided with the rib 5-3 higher than seat gold 5.
initially, rotatably compress cylinder 8 and be in lifting status, depression bar 8-2 is arranged in parallel, locating dowel 3 is inserted in the first centre bore 5-4 and the second centre bore 6-1, locator card platform 2-2 just in time is embedded in the first centre bore 5-4, hub body 1 outer ring is embedded in rib 5-3, this moment, wheel hub did not also turn to machinable position, start tilt cylinder 10, rotary output axis 11 drives friction pulley 7 and rotates, friction pulley 7 is in rotation process, tilt cylinder 10 can be adjusted position according to the stroke of friction pulley 7, the outer ring and hub body 1 outer ring that guarantee friction pulley 7 by the spring on hold-down bolt 13 are leaning mutually, but the tangent plane 7-1 of friction pulley 7 goes to while with hub body 1 outer ring, leaning on mutually, can start to stir hub body 1 rotates to bolt 12, tilt cylinder 10 can be controlled friction pulley 7 and rotate forward or backwards, when the positioning convex 1-3 of hub body 1 lower surface turns to bolt 12, can not rotate again owing to being subject to keeping out of bolt 12, make position and the working groove of through hole to be processed on wheel hub align, 90 ° of rotating piston bar 8-1, lower moulded rod 8-2, make briquetting 8-3 compress wheel hub to be processed, but do not block the position of through hole to be processed on wheel hub, carry out Drilling operation after precise positioning.
Take above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to the claim scope.
Claims (5)
1. a wheel hub is processed friction-type secondary fine detent mechanism, it is characterized in that: comprise base plate (4), be used for setting off seat gold (5), the seat golden cushion block (6) of wheel hub and be used for wheel hub to be processed is compressed rotary compacting device on present gold (5), the golden cushion block of described seat (6) is fixed on base plate (4), on the fixing present golden cushion block (6) of seat gold (5)
The center of described seat gold (5) and the golden cushion block of seat (6) offers respectively be used to the first centre bore (5-4) that holds wheel hub locating dowel (3) and the second centre bore (6-1), the first centre bore (5-4) and the second centre bore (6-1) in the same size, described the first centre bore (5-4) is complementary with the outer ring of locator card platform (2-2)
Offer the circular cavity (4-1) of indent on described base plate (4), described circular cavity (4-1), the first centre bore (5-4) and the coaxial setting of the second centre bore (6-1), the internal diameter of circular cavity (4-1) is slightly larger than the internal diameter of the second centre bore (6-1) and less than the external diameter of seat gold cushion block (6), the height sum of the first centre bore (5-4) and the second centre bore (6-1) is at least greater than the height of locating dowel (3), the degree of depth of circular cavity (4-1) is slightly larger than or equals the height of locator card platform (2-2)
Described seat gold (5) upper also offers a plurality of working grooves that are complementary with upper through hole to be processed (1-1) position of wheel hub (1), setting any two adjacent working grooves is the first working groove (5-1) and the second working groove (5-2), offer step between described the first working groove (5-1) and the second working groove (5-2)
Also be provided with the bolt (12) that is used for keeping out positioning convex (1-3) process of evagination on described seat gold (5), described bolt (12) is positioned at the side of the first working groove (5-1) away from the second working groove (5-2),
Also be provided with the striking gear that rotates be used to stirring hub body (1) on described base plate (4), described striking gear comprises friction pulley (7) and the fraction wheel drive device of present gold (5) side is installed, intersect the outer ring of the excircle configuration of described friction pulley (7) and hub body to be processed (1), and described friction pulley (7) outer ring also is processed with tangent plane (7-1).
2. wheel hub as claimed in claim 1 is processed friction-type secondary fine detent mechanism, it is characterized in that: described rotary compacting device comprise be arranged on that the upper symmetry of base plate (4) is positioned at golden (5) both sides rotatably compress cylinder (8), rotatably compress on the external part of piston rod (8-1) of cylinder (8) and be provided with the depression bar (8-2) vertical with piston rod (8-1) axis, the below, end of depression bar (8-2) is fixed with the briquetting (8-3) for the hub body (1) on pressed seat gold (5).
3. wheel hub as claimed in claim 1 is processed friction-type secondary fine detent mechanism, it is characterized in that: described seat gold (5) outer ring is slightly larger than the outer ring of the golden cushion block of seat (6), and the outer ring of seat golden (5) also is provided with the rib (5-3) higher than seat gold (5).
4. wheel hub as claimed in claim 1 is processed friction-type secondary fine detent mechanism, it is characterized in that: described step has athwartship plane (9-1) and longitudinal surface (9-2), described athwartship plane (9-1) extends to the first working groove, the second working groove (5-2) and seat gold (5) outer ring, and athwartship plane (9-1) is lower than friction pulley (7), and longitudinal surface (9-2) extends to the upper surface of the first working groove, the second working groove (5-2) and seat gold (5).
5. wheel hub as claimed in claim 1 is processed friction-type secondary fine detent mechanism, it is characterized in that: also comprise the bolt (13) that is set with spring, seat gold (5) outer ring between described the first working groove (5-1) and the second working groove (5-2) is processed with seat golden tangent plane (5-5), offer bolt mounting holes (5-6) on the golden tangent plane of described seat (5-5), described fraction wheel drive device comprises tilt cylinder (10) and output shaft (11), described output shaft (11) parallels with the axis of seat gold (5), friction pulley (7) is sleeved on output shaft (11), described bolt (13) penetrates the be fixed outside of present golden tangent plane (5-5) of tilt cylinder (10), described spring is positioned between the top of tilt cylinder (10) and bolt (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310340637.0A CN103386620B (en) | 2013-08-06 | 2013-08-06 | Hub processing friction type secondary fine positioning mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310340637.0A CN103386620B (en) | 2013-08-06 | 2013-08-06 | Hub processing friction type secondary fine positioning mechanism |
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| CN103386620A true CN103386620A (en) | 2013-11-13 |
| CN103386620B CN103386620B (en) | 2014-05-21 |
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| CN201310340637.0A Active CN103386620B (en) | 2013-08-06 | 2013-08-06 | Hub processing friction type secondary fine positioning mechanism |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103753319A (en) * | 2014-01-26 | 2014-04-30 | 浙江联宜电机股份有限公司 | Automatic machining tool of box machining center |
| CN105598720A (en) * | 2015-10-12 | 2016-05-25 | 贵州裕高电子有限责任公司 | Part inner hole milling fixture and use method thereof |
| CN106112579A (en) * | 2016-08-26 | 2016-11-16 | 叶青 | A kind of vertical fixing device of wheel hub |
| CN106112588A (en) * | 2016-07-21 | 2016-11-16 | 河南森源电气股份有限公司 | A kind of hole plate class clamping workpiece device |
| CN108098398A (en) * | 2016-11-24 | 2018-06-01 | 上海国上机电科技有限公司 | A kind of processing bearing pin numerical control attachment device |
| CN109333214A (en) * | 2018-09-07 | 2019-02-15 | 安徽省含山县兴建铸造厂 | A kind of full-automatic scouring machine of automobile platen |
| CN112092042A (en) * | 2020-09-14 | 2020-12-18 | 天长市永南橡塑制品有限公司 | Tire cutting device |
| CN113634976A (en) * | 2021-10-17 | 2021-11-12 | 南通宝雪冷冻设备有限公司 | Spiral sprocket piece assembly device for quick-freezer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753319A (en) * | 2014-01-26 | 2014-04-30 | 浙江联宜电机股份有限公司 | Automatic machining tool of box machining center |
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| CN112092042A (en) * | 2020-09-14 | 2020-12-18 | 天长市永南橡塑制品有限公司 | Tire cutting device |
| CN113634976A (en) * | 2021-10-17 | 2021-11-12 | 南通宝雪冷冻设备有限公司 | Spiral sprocket piece assembly device for quick-freezer |
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| CN103386620B (en) | 2014-05-21 |
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Address after: 213164 Wujin new and high tech Industrial Development Zone, Jiangsu, Hui Hui Road, No. 7, A3, Patentee after: STON ROBOT CHANGZHOU Co.,Ltd. Address before: 213100 No. 7 Xinhui Road, South villa, Wujin District, Jiangsu, Changzhou Patentee before: STON ROBOT MANUFACTURING (CHANGZHOU) Co.,Ltd. |
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Denomination of invention: Hub processing friction type secondary fine positioning mechanism Effective date of registration: 20180202 Granted publication date: 20140521 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd. Pledgor: STON ROBOT CHANGZHOU Co.,Ltd. Registration number: 2018990000126 |
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Denomination of invention: Hub processing friction type secondary fine positioning mechanism Effective date of registration: 20190202 Granted publication date: 20140521 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd. Pledgor: STON ROBOT CHANGZHOU Co.,Ltd. Registration number: 2019990000114 |
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Denomination of invention: Friction type secondary fine positioning mechanism for wheel hub machining Effective date of registration: 20201119 Granted publication date: 20140521 Pledgee: Jiangsu Jiangnan Rural Commercial Bank Limited by Share Ltd. Pledgor: STON ROBOT CHANGZHOU Co.,Ltd. Registration number: Y2020990001361 |
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