CN203908473U - Comprehensive gauge of parallel degree and center distance of large and small holes of connecting rod - Google Patents
Comprehensive gauge of parallel degree and center distance of large and small holes of connecting rod Download PDFInfo
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- CN203908473U CN203908473U CN201420283018.2U CN201420283018U CN203908473U CN 203908473 U CN203908473 U CN 203908473U CN 201420283018 U CN201420283018 U CN 201420283018U CN 203908473 U CN203908473 U CN 203908473U
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- connecting rod
- aperture
- mandrel
- slide
- macropore
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- 238000009966 trimming Methods 0.000 claims description 9
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001915 proofreading effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a comprehensive gauge of the parallel degree and the center distance of large and small holes of a connecting rod. The comprehensive gauge comprises a base. A vertical plate is arranged on one side of the end face of the base. An expansion type large hole core shaft assembly fixedly runs through the vertical plate. The large hole of the connecting rod sleeves the expansion type large hole core shaft assembly. An expansion type small hole core shaft assembly is sleeved in the small hole of the connecting rod. The expansion type small hole core shaft assembly comprises a small hole core shaft. A guide rail is arranged on the other side of the end face of the base. A guide rail is connected with a first sliding seat in a sliding manner. A support nail with adjustable height is arranged on the first sliding seat. The top end of the support nail abuts against the lower margin of the small hole end of the connecting rod. The guide rail is connected with a second sliding seat in a sliding manner. A support frame is arranged on the second sliding seat. The support frame comprises a side plate and a top plate. A pair of horizontal dial indicator is arranged on the side plate. A pair of vertical dial indicator is arranged on the top plate. The comprehensive gauge provided by the utility model has the advantages of accurate positioning, high data detection accuracy, small error and rapid and accurate measurement, and meets the demand of online rapid detection when connecting rod batch production is carried out.
Description
Technical field
The utility model relates to the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod and centre distance.
Background technology
Connecting rod, as the force transferring part of engine, bears alternate load, and condition of work is severe, easily occurs bending and the torsional deformation of connecting rod.Link parallelism overproof (being bending and torsional deformation), make piston crooked in cylinder, cause the eccentric wear of piston and cylinder, the connecting-rod bearing and rod journal, the work to toggle is had a huge impact, thereby affect engine power, economy and serviceable life.The variation of connecting rod centre distance is larger on the impact of engine compression ratio, has affected the power of engine.So it is particularly important that the depth of parallelism of the large aperture of control link and centre distance seem, the General Requirements depth of parallelism is less than or equal to 0.05mm (100mm length), be controlled at ± 0.05mm of centre distance.
The conventional vee-block of the measurement of paralleism supports location twice, and adopts spindle taper as plug, repeatedly to beat the method for table, or adopts the method for three-dimensional coordinates measurement sampling; Connecting rod center distance measurement is generally first measured respectively the large hole diameter size of connecting rod, obtain its radius size, and then measure maximum or minor increment between two holes, add or deduct two hole real radiuss, thereby obtain operating center distance, or the method for three-dimensional coordinates measurement sampling.But while surveying the depth of parallelism twice location repeatedly beat table really loaded down with trivial details, efficiency is low, and what adopt is spindle taper, the handling of Small Taper axle are very difficult, easily scratch workpiece, and because the existence of tapering can produce certain measuring error; And three-dimensional sampling is too short, be converted to 100mm after error obviously become large.Measured center apart from time while measuring between two holes maximum or minor increment personal error impact larger, repeated repeatability is poor, and centre distance will can calculate after measuring between He Liang hole, large small-bore maximum or minor increment, cumulative errors are larger.Moreover three-dimensional cost is high, the cycle of check is long, cannot meet the requirement of the fast detecting depth of parallelism and centre distance on production line, is not easy to produce.
Summary of the invention
The purpose of this utility model is to provide the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod and centre distance, and this comprehensive check tool registration detects data precision high, and error is little, measures convenient and swiftly, and is applicable to the connecting rod of different size model.
For achieving the above object, the utility model is by the following technical solutions:
The comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod and centre distance, comprise base, described base end face one side is provided with riser, on riser, wear and be fixed with expanding macropore mandrel component, and the axial line of expanding macropore mandrel component is perpendicular to riser, and the macropore of described connecting rod is sheathed on expanding macropore mandrel component; In the aperture of described connecting rod, be arranged with expanding aperture mandrel component, described expanding aperture mandrel component comprises aperture mandrel, connecting rod aperture is extended respectively at the two ends of aperture mandrel: described base end face opposite side is provided with guide rail, on guide rail, slidably connect the first slide, the first slide is provided with Height Adjustable support nail, and the top of support nail is resisted against the lower edge of connecting rod small bore end; On described guide rail, also slidably connect the second slide, the second slide is positioned at the first slide away from a side of connecting rod, described the second slide is provided with bracing frame, bracing frame comprises side plate and top board, described side plate is provided with a pair of horizontal clock gauge, this measuring head to horizontal clock gauge is the corresponding lateral margin of measuring end, aperture mandrel two ends respectively, and described top board is provided with a pair of vertical clock gauge, and this is to the corresponding upper limb of measuring end, aperture mandrel two ends of vertical clock gauge difference; One side of described guide rail is provided with the limit assembly moving on guide rail for limiting the first slide and the second slide.
Described limit assembly comprises the first limited block and the second limited block, described base is positioned at guide rail one side and is provided with the chute with guide rail parallel, corresponding the first slide of described the first limited block and the second limited block and the second slide are sequentially slidably arranged in chute, chute is all extended in the bottom of the first limited block and the second limited block, and is all connected with set nut; The upper end of described the first limited block is fixedly connected with the side of the first slide; The upper end level of described the second limiting plate is provided with trimming bolt, and the root of trimming bolt wears the second limited block, and is resisted against the side wing of the second slide side.
Described macropore mandrel component comprises macropore mandrel and the first expansion sleeve, described macropore mandrel vertically wears and is fixed on riser, described macropore mandrel is provided with tapered portion, the stub end of tapered portion is towards riser, the inside surface of described the first expansion sleeve is the conical surface that the tapered portion with macropore mandrel matches, the macropore of described connecting rod is set in outside the first expansion sleeve, and the first expansion sleeve is locked through the first expansion nut, expands and is close to the hole wall of connecting rod macropore.
Described aperture mandrel component also comprises the second expansion sleeve, the stage casing of described aperture mandrel is provided with tapered portion, the inside surface of described the second expansion sleeve is the conical surface that the tapered portion with aperture mandrel matches, the second expansion sleeve is set in the tapered portion of aperture mandrel, the aperture of described connecting rod is set in outside the second expansion sleeve, the stub end end of described tapered portion is provided with step, and this step is close to an end face of connecting rod small bore end; Described the second expansion sleeve is locked through the second expansion nut, expands and is close to the hole wall of connecting rod aperture.
Described guide rail is provided with limiting plate away from the end, one end of macropore mandrel component, and limiting plate top is provided with banking pin.Banking pin can prevent that the second slide from departing from from guide rail.
Described horizontal clock gauge and the vertically measuring head of clock gauge are flat head structure.Such structure, so that reduce the measurement data distortion that the difference of measuring head contacting points position on aperture mandrel of spherical or cylindrical structure causes.
Described guide rail is high precision line slide rail.
The utility model adopts above technical scheme, has the following advantages: 1, the large aperture of connecting rod all adopts expanding mandrel component, can realize gapless precision centering, eliminates the impact of the tolerance of the large aperture of connecting rod own.
2, the macropore mandrel in employing expanding macropore mandrel component is simulated the axis of connecting rod macropore, aperture mandrel in employing expanding aperture mandrel component is simulated the axis of connecting rod aperture, the utility model be take macropore mandrel as benchmark, adopt two horizontal clock gauges to detect bending value, two vertical clock gauges are for detection of distortion value, four clock gauges form a whole and can measure bending value and distortion value simultaneously, thereby one-time positioning just can record the depth of parallelism of the large aperture of connecting rod.In addition, the center distance measurement of the large aperture of connecting rod of the present utility model, adopts comparison exemplar mensuration, measures the difference of tested connecting rod and standard test connecting rod centre distance by two horizontal clock gauges on bracing frame, just can calculate the centre distance of tested connecting rod.
3, adjustable for height support nail is fixed on the first slide, can realize support top and regulate up and down, guarantees that this cubing can meet the connecting rod measurement needs of different centre distance and small head external diameter size.
4, the first slide and the second slide are slidably connected to respectively on guide rail, have guaranteed for the support nail of support link small bore end and can independent left move right for fixing the bracing frame of four clock gauges.
5, the first limited block can slide in chute, and by set nut locking positioning, thereby can the support nail on the first slide be positioned.The second slide block can slide equally in chute, and by set nut locking positioning, by trimming bolt, can finely tune the position of the second slide on guide rail in addition, thereby accurate adjustment is carried out in four clock gauge positions on the second slide, thereby, the utility model can be measured the connecting rod of different model, specification, and usable range is very wide.
In a word, comprehensive check tool registration of the present utility model, detects data precision high, and error is little, measures convenient and swiftly, has realized the object of quick and precisely measuring, and has met on-line quick detection demand when connecting rod is produced in enormous quantities.
Accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the utility model is described in further details:
Fig. 1 is the three-dimensional structure diagram of the utility model integral body;
Fig. 2 is the front elevation of the utility model integral body;
The vertical view of Fig. 3 the utility model integral body;
Fig. 4 is the schematic diagram of expanding macropore mandrel component;
Fig. 5 is the schematic diagram of expanding aperture mandrel component;
Fig. 6 is the three-dimensional structure diagram of the first expansion set;
Fig. 7 is the three-dimensional structure diagram of horizontal clock gauge.
Embodiment
As one of Fig. 1 to Fig. 7 the utility model comprises base 1, described base 1 end face one side is provided with riser 2, on riser 2, wear and be fixed with expanding macropore mandrel component 3, and the axial line of expanding macropore mandrel component 3 is perpendicular to riser 2, and the macropore of described connecting rod 4 is sheathed on expanding macropore mandrel component 3; In the aperture of described connecting rod 4, be arranged with expanding aperture mandrel component 6, described expanding aperture mandrel component 6 comprises aperture mandrel 61, connecting rod aperture is extended respectively at the two ends of aperture mandrel 61: described base 2 end face opposite sides are provided with guide rail 7, on guide rail 7, slidably connect the first slide 71, the first slide 71 is provided with Height Adjustable support nail 711, and the top of support nail 711 is resisted against the lower edge of connecting rod small bore end; On described guide rail 7, also slidably connect the second slide 72, the second slide 72 is positioned at the first slide 71 away from a side of connecting rod 4, described the second slide 72 is provided with bracing frame 73, bracing frame 73 comprises side plate and top board, described side plate is provided with a pair of horizontal clock gauge 8, this measuring head to horizontal clock gauge 8 is the corresponding lateral margin of measuring aperture mandrel 61 ends, two ends respectively, and described top board is provided with a pair of vertical clock gauge 9, and this is to the corresponding upper limb of measuring aperture mandrel 61 ends, two ends of vertical clock gauge 9 difference; One side of described guide rail 7 is provided with the limit assembly moving on guide rail 7 for limiting the first slide 71 and the second slide 72.
Described limit assembly comprises the first limited block 11 and the second limited block 12, described base 2 is positioned at guide rail 7 one sides and is provided with the chute parallel with guide rail 7 10, corresponding the first slide 71 of the first limited block 11 and the second limited block 12 and the second slide 72 are sequentially slidably arranged in chute 10, chute 10 is all extended in the bottom of the first limited block 11 and the second limited block 12, and is all connected with set nut; The upper end of described the first limited block 11 is fixedly connected with the side of the first slide 71; The upper end level of described the second limiting plate 12 is provided with trimming bolt 13, and the root of trimming bolt 13 wears the second limited block 12, and is resisted against the side wing of the second slide 72 sides.
Described macropore mandrel component 3 comprises macropore mandrel 31 and the first expansion sleeve 32, described macropore mandrel 31 vertically wears and is fixed on riser 2, described macropore mandrel 31 is provided with tapered portion, the stub end of tapered portion is towards riser 2, the inside surface of described the first expansion sleeve 32 is conical surfaces that the tapered portion with macropore mandrel 31 matches, the macropore of described connecting rod 4 is set in outside the first expansion sleeve 32, and the first expansion sleeve 32, through the first expansion nut 33 lockings, expands and is close to the hole wall of connecting rod macropore.
Described aperture mandrel component 6 also comprises the second expansion sleeve 62, the stage casing of described aperture mandrel 61 is provided with tapered portion, the inside surface of described the second expansion sleeve 62 is conical surfaces that the tapered portion with aperture mandrel 61 matches, the second expansion sleeve 62 is set in the tapered portion of aperture mandrel 61, the aperture of described connecting rod 4 is set in outside the second expansion sleeve 62, the stub end end of described tapered portion is provided with step, and this step is close to an end face of connecting rod small bore end; Described the second expansion sleeve 62, through the second expansion nut 63 lockings, expands and is close to the hole wall of connecting rod aperture.
Described guide rail 7 is provided with limiting plate 74 away from the end, one end of macropore mandrel component 3, and limiting plate 74 tops are provided with banking pin 5.Banking pin 5 can prevent that the second slide 72 from departing from from guide rail 7.
Described horizontal clock gauge 8 and the vertically measuring head of clock gauge 9 are flat head structure.The measurement data distortion that the difference of measuring head contacting points position on aperture mandrel of spherical or cylindrical structure of being convenient to flat head structure to reduce causes.
When the utility model is measured the depth of parallelism of the large aperture of connecting rod, when switching different machine, should be first by adjusting the position of the first slide 71, and the height of support nail 711, the axis of the large aperture of connecting rod is positioned on surface level, then can be by adjusting position and the trimming bolt 13 of the second slide 72, make the measuring head of two horizontal clock gauges 8 and two vertical clock gauges 9 be contacted with respectively the end, two ends of aperture mandrel 61.Then adopt standard proof-reading block respectively two horizontal clock gauges 8 and two vertical clock gauges 9 to be proofreaded to rezero operation, wherein, as shown in Figure 2 or Figure 3, the radius of the tested end of standard size=L-R+ aperture mandrel of proof-reading block horizontal direction, wherein L is the centre distance of macropore mandrel 31 and aperture mandrel 61, R is on macropore mandrel 31, is positioned at the radius of the cylindrical portion at tapered portion stub end end; The radius of the tested end of standard size=H+ aperture mandrel of proof-reading block vertical direction, wherein H is the distance of macropore mandrel 31 and base 1 end face.
Then the small end of connecting rod 4 is positioned on the support nail 711 of adjusting in advance left and right high and low position, the macropore of connecting rod 4 is set in outside the first expansion sleeve 32, and the large end madial wall of connecting rod 4 is close to the shaft shoulder of macropore mandrel 31, realize the location of measuring connecting rod 4, screw the first expansion nut 33, the first expansion sleeve 32 is squeezed and expands and be close to the hole wall of connecting rod macropore, realizes locking.Then adjustment the second slide 72 is moved to right, allow out position fill expanding aperture mandrel component 6, expanding aperture mandrel component 6 is installed on the aperture of connecting rod 4, by screwing the second expansion nut 63, the second expansion sleeves 62, is squeezed and expands and be close to the hole wall of connecting rod aperture equally.Then the second slide 72 moves on to and is adjacent to trimming bolt 13, just can read respectively the reading of four clock gauges.Wherein, the measurement of paralleism of the large aperture of connecting rod comprises the measurement of diastrophic measurement and torsional deformation, the absolute value of the reading difference of two horizontal clock gauges 8 is bending value, the absolute value of the reading difference of two vertical clock gauges 9 is distortion value, so just can complete the measurement of paralleism of the large aperture of connecting rod.
When the utility model is measured the large aperture centre distance of connecting rod, with the connecting rod of two horizontal clock gauge 8 measurement standards, two horizontal clock gauges 8 are all made zero, then measure tested connecting rod, if the reading of two horizontal clock gauges is respectively B
1and B
2, the centre distance of its Plays connecting rod is B
0, tested connecting rod centre distance=(B
1+ B
2)/2+B
0.
When measuring will unload lower link 4 time, as long as unscrew two expansion nut, two expansion sleeves tighten up under the resilient force of self, can take down connecting rod 4, and unloading is very easy to.
Claims (7)
1. the comprehensive check tool of the large aperture depth of parallelism of connecting rod and centre distance, comprise base, it is characterized in that: described base end face one side is provided with riser, on riser, wear and be fixed with expanding macropore mandrel component, and the axial line of expanding macropore mandrel component is perpendicular to riser, and the macropore of described connecting rod is sheathed on expanding macropore mandrel component; In the aperture of described connecting rod, be arranged with expanding aperture mandrel component, described expanding aperture mandrel component comprises aperture mandrel, connecting rod aperture is extended respectively at the two ends of aperture mandrel: described base end face opposite side is provided with guide rail, on guide rail, slidably connect the first slide, the first slide is provided with Height Adjustable support nail, and the top of support nail is resisted against the lower edge of connecting rod small bore end; On described guide rail, also slidably connect the second slide, the second slide is positioned at the first slide away from a side of connecting rod, described the second slide is provided with bracing frame, bracing frame comprises side plate and top board, described side plate is provided with a pair of horizontal clock gauge, this measuring head to horizontal clock gauge is the corresponding lateral margin of measuring end, aperture mandrel two ends respectively, and described top board is provided with a pair of vertical clock gauge, and this is to the corresponding upper limb of measuring end, aperture mandrel two ends of vertical clock gauge difference; One side of described guide rail is provided with the limit assembly moving on guide rail for limiting the first slide and the second slide.
2. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, it is characterized in that: described limit assembly comprises the first limited block and the second limited block, described base is positioned at guide rail one side and is provided with the chute with guide rail parallel, corresponding the first slide of described the first limited block and the second limited block and the second slide are sequentially slidably arranged in chute, chute is all extended in the bottom of the first limited block and the second limited block, and is all connected with set nut; The upper end of described the first limited block is fixedly connected with the side of the first slide; The upper end level of described the second limiting plate is provided with trimming bolt, and the root of trimming bolt wears the second limited block, and is resisted against the side wing of the second slide side.
3. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, it is characterized in that: described macropore mandrel component comprises macropore mandrel and the first expansion sleeve, described macropore mandrel vertically wears and is fixed on riser, described macropore mandrel is provided with tapered portion, the stub end of tapered portion is towards riser, the inside surface of described the first expansion sleeve is the conical surface that the tapered portion with macropore mandrel matches, the macropore of described connecting rod is set in outside the first expansion sleeve, the first expansion sleeve is locked through the first expansion nut, expands and is close to the hole wall of connecting rod macropore.
4. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, it is characterized in that: described aperture mandrel component also comprises the second expansion sleeve, the stage casing of described aperture mandrel is provided with tapered portion, the inside surface of described the second expansion sleeve is the conical surface that the tapered portion with aperture mandrel matches, the second expansion sleeve is set in the tapered portion of aperture mandrel, the aperture of described connecting rod is set in outside the second expansion sleeve, the stub end end of described tapered portion is provided with step, and this step is close to an end face of connecting rod small bore end; Described the second expansion sleeve is locked through the second expansion nut, expands and is close to the hole wall of connecting rod aperture.
5. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, is characterized in that: described guide rail is provided with limiting plate away from the end, one end of macropore mandrel component, and limiting plate top is provided with banking pin.
6. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, is characterized in that: described horizontal clock gauge and the vertically measuring head of clock gauge are flat head structure.
7. the comprehensive check tool of the large aperture depth of parallelism of a kind of connecting rod according to claim 1 and centre distance, is characterized in that: described guide rail is high precision line slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283018.2U CN203908473U (en) | 2014-05-30 | 2014-05-30 | Comprehensive gauge of parallel degree and center distance of large and small holes of connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283018.2U CN203908473U (en) | 2014-05-30 | 2014-05-30 | Comprehensive gauge of parallel degree and center distance of large and small holes of connecting rod |
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| Publication Number | Publication Date |
|---|---|
| CN203908473U true CN203908473U (en) | 2014-10-29 |
Family
ID=51782736
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283018.2U Expired - Fee Related CN203908473U (en) | 2014-05-30 | 2014-05-30 | Comprehensive gauge of parallel degree and center distance of large and small holes of connecting rod |
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| Country | Link |
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| CN (1) | CN203908473U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019728A (en) * | 2014-05-30 | 2014-09-03 | 福州钜立机动车配件有限公司 | Integration testing fixture for parallelism and center distance of large hole and small hole of a connecting rod |
| CN107356181A (en) * | 2017-07-18 | 2017-11-17 | 安徽江淮汽车集团股份有限公司 | A kind of synchronous ring cubing |
| WO2018188064A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Positioning device for automobile brake cable detection |
| CN110345851A (en) * | 2019-08-27 | 2019-10-18 | 南阳威奥斯图车辆减振器有限公司 | A kind of rail dampener symmetry checking device |
| CN110440677A (en) * | 2019-08-22 | 2019-11-12 | 桂林福达曲轴有限公司 | A crankshaft journal taper angle detection device and using method thereof |
-
2014
- 2014-05-30 CN CN201420283018.2U patent/CN203908473U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019728A (en) * | 2014-05-30 | 2014-09-03 | 福州钜立机动车配件有限公司 | Integration testing fixture for parallelism and center distance of large hole and small hole of a connecting rod |
| CN104019728B (en) * | 2014-05-30 | 2016-08-31 | 福州钜立机动车配件有限公司 | A kind of connecting rod big aperture depth of parallelism and the comprehensive check tool of centre-to-centre spacing |
| WO2018188064A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Positioning device for automobile brake cable detection |
| CN107356181A (en) * | 2017-07-18 | 2017-11-17 | 安徽江淮汽车集团股份有限公司 | A kind of synchronous ring cubing |
| CN107356181B (en) * | 2017-07-18 | 2019-06-28 | 安徽江淮汽车集团股份有限公司 | A kind of synchronous ring cubing |
| CN110440677A (en) * | 2019-08-22 | 2019-11-12 | 桂林福达曲轴有限公司 | A crankshaft journal taper angle detection device and using method thereof |
| CN110345851A (en) * | 2019-08-27 | 2019-10-18 | 南阳威奥斯图车辆减振器有限公司 | A kind of rail dampener symmetry checking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 350000 No.3 comprehensive office building, No.8, Shangmao Avenue, Nantong town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Huawei Juquan Precision Technology Co.,Ltd. Address before: Jinan District Fuk new road 350000 Fuzhou city of Fujian Province, No. 245 Patentee before: FUZHOU JULI MOTOR PARTS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |