CN203831125U - Clamping force adjustable clamp for clamping machined part - Google Patents
Clamping force adjustable clamp for clamping machined part Download PDFInfo
- Publication number
- CN203831125U CN203831125U CN201420205030.1U CN201420205030U CN203831125U CN 203831125 U CN203831125 U CN 203831125U CN 201420205030 U CN201420205030 U CN 201420205030U CN 203831125 U CN203831125 U CN 203831125U
- Authority
- CN
- China
- Prior art keywords
- pressure source
- rod
- lever boosting
- fixture
- processing parts
- 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
Links
- 238000009434 installation Methods 0.000 claims description 25
- 239000002828 fuel tank Substances 0.000 claims description 6
- 230000008034 disappearance Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a clamping force adjustable clamp for clamping a machined part. The clamp comprises a bottom plate, a lower clamping block and an upper clamping block, wherein the bottom plate can be conveniently mounted on a machine tool, the lower clamping block is mounted on the bottom plate, and the upper clamping block cooperates with the lower clamping block to clamp the machined part. The clamp further comprises a pressure source mounting component, a pressure source, an upper clamping head support and a lever type stress application rod, wherein the pressure source mounting component is mounted on the bottom plate, the pressure source is mounted in the pressure source mounting component, the upper clamping head support is mounted on the pressure source mounting component, the fulcrum of the lever type stress application rod is hinged to the upper portion of the upper clamping head support, and the pressure output end of the pressure source makes contact with the rear end of the lever type stress application rod. Upward pressure is applied to the rear end of the lever type stress application rod, the front end of the lever type stress application rod moves downwards under the leverage of the lever type stress application rod to drive the lower clamping block to move downwards, and then the machined part is clamped between the upper clamping block and the lower clamping block. The clamping force of the clamp can be controlled according to different machined parts, and the clamp is particularly suitable for clamping thin-wall machined parts.
Description
Technical field
The utility model relates to the fixture using in mechanical processing process, particularly the fixture of the adjustable clamping thin-walled parts of a kind of chucking power.
Background technology
At present, in controlled fixture field, the mode that adopts online hydraulic pressure to continue voltage supply realizes the clamping of institute's processing parts more, is wherein by pressure-reducing valve and overflow valve control fixture end output pressure.And in the field of off-line fixture, be all generally to adopt mechanical system to pressurize, its clamping force is many to be arranged with operating personnel's personal experience, often because clamping force is on the low side, make to add part rigidity variation in man-hour, part vibrations are strengthened, and have influence on the machining accuracy of part; Or clamping force is higher, make some thin-walled parts distortion, cause thin-walled parts to damage or mismachining tolerance increase.
Utility model content
Technical problem to be solved in the utility model is to provide the adjustable and chucking power of a kind of chucking power to observe the fixture that clamps intuitively processing parts for existing off-line fixture in the clamping existing problem of thin-walled parts.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A fixture for the clamping processing parts that chucking power is adjustable, comprising:
One is convenient to be arranged on the base plate on lathe;
Be arranged on the lower fixture block on described base plate,
The upper fixture block that coordinates clamping institute processing parts with described lower fixture block, is characterized in that, also comprises:
One is arranged on the pressure source installation component on described base plate, and described pressure source installation component comprises a mounting seat and a cylindrical shell being arranged in described mounting seat, offers pressure source action pane on described cylindrical shell;
Be arranged on the pressure source in the cylindrical shell of described pressure source installation component, the operation part of described pressure source is appeared by the pressure source action pane on the cylindrical shell of described pressure source installation component;
Be installed in rotation on the upper grip bearing on the cylindrical shell of described pressure source installation component, in described upper grip bearing, be provided with push-rod hole;
The one pressurization push rod through described push-rod hole, the Output pressure end in contact of the bottom of described pressurization push rod and described pressure source;
One is hinged on the lever boosting-rod on described upper grip bearing, the upper end of described pressurization push rod acts on the rear end of described lever boosting-rod, forces the front end of described lever boosting-rod to act on upper grip and by described upper grip described institute processing parts is clamped between described upper and lower fixture block by leverage.
In a preferred embodiment of the present utility model, described pressure source is a hand jack, and the top of the piston mandril in described hand jack contacts with the bottom of described pressurization push rod.
In a preferred embodiment of the present utility model, dispose a LOAD CELLS or force cell in the bottom of described hand jack, be applied to the power on lever boosting-rod rear end in order to detect hand jack, described LOAD CELLS or force cell connect a pressure display instrument table.
In a preferred embodiment of the present utility model, described hand jack is hand hydraulic jack or Manual mechanical jack; In the time that described hand jack is hand hydraulic jack, be arranged on the outer wall of cylindrical shell of described pressure source installation component with the matching used fuel tank of this hand hydraulic jack, between described fuel tank and the plunger shaft of hand hydraulic jack, be connected by oil pipe.
In a preferred embodiment of the present utility model, in the cylindrical shell of described pressure source installation component, dispose a hand jack setting element, so that hand jack setting element is carried out radially and axis location.
In a preferred embodiment of the present utility model, described hand jack setting element comprises that one is fixed on the mounting flange on the cylinder inboard wall of described pressure source installation component and adopts securing member to be arranged on the locating flange on described mounting flange, and described locating flange carries out radial and axial location to the cylinder body in described hand jack.
In a preferred embodiment of the present utility model, described upper grip bearing comprises a support column and the support arm being connected with described support column, be provided with an annular groove in the bottom of described support column, the support column of annular groove bottom part inserts in the cylindrical shell of described pressure source installation component, adopt securing member that two semicircular back-up blocks are installed at the cylindrical shell top of described pressure source installation component, two semicircular back-up blocks are embedded in the annular groove of described support column, and described upper grip bearing can rotate around self axis of described support column; Described lever boosting-rod is hinged on the front end of described support arm.
In a preferred embodiment of the present utility model, the gravitational moment of described lever boosting-rod the second end is greater than the gravitational moment of first end.
In a preferred embodiment of the present utility model, hinged employing one fulcrum pin between described lever boosting-rod and upper grip bearing carries out hinged.
In a preferred embodiment of the present utility model, on described fulcrum pin, be wound with a torsion spring, described torsion spring one end acts on described lever boosting-rod, the other end acts on described upper grip bearing, described torsion spring acts on by pressurization push rod after the pressure disappearance on described lever boosting-rod rear end at described pressure source, force the rear end of described lever boosting-rod to move downward, the pressure that lever boosting-rod front end is added on described upper fixture block disappears.
In a preferred embodiment of the present utility model, between the rear end of described lever boosting-rod and described upper grip bearing, be connected with stage clip or extension spring, described pressure source acts on after the pressure disappearance on described lever boosting-rod rear end by pressurization push rod, described stage clip or extension spring force the rear end of described lever boosting-rod to move downward, and the pressure that lever boosting-rod front end is applied on described upper fixture block disappears.
Owing to having adopted technical scheme as above, the utility model is by the acting in conjunction of hand jack and lever boosting-rod, in driving, fixture block moves downward, coordinate institute's processing parts is clamped with lower fixture block, again by being arranged on LOAD CELLS or the force cell of bottom of hand jack, the effect that utilizes power is mutual principle, measure hand jack and be applied to the power on lever boosting-rod rear end, thereby measure the chucking power between upper and lower fixture block, reach institute's processing parts difference, the object that chucking power is controlled.The utility model is particularly suitable for clamping thin-walled processing parts.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Detailed description of the invention
Referring to Fig. 1 to Fig. 3, the fixture of the clamping processing parts that a kind of chucking power shown in figure is adjustable, comprises base plate 100, and this base plate 100 adopts T-shaped bolt 210 to be arranged on the work top 200 of lathe.Its position can be adjusted according to the difference of part in the position of base plate 100 on the work top 200 of lathe like this.
On base plate 100, by T-shaped bolt 110, lower fixture block 310 is installed, plays like this position of fixture block 310 on base plate 100 to adjust its position according to the difference of part.Lower fixture block 310 can be different according to the part difference of clamping V-block form.
One pressure source installation component 410 is also installed on base plate 100, and this pressure source installation component 410 comprises a mounting seat 411 and a cylindrical shell 412 being arranged in mounting seat 411, offers pressure source action pane 412a on cylindrical shell 412; Mounting seat 411 adopts and is bolted on base plate 100, and the bottom of cylindrical shell 412 adopts bolt to be arranged in mounting seat 411.
One hand hydraulic jack 420 is installed in cylindrical shell 412, and the operating sleeve 421 in hand hydraulic jack 420 sees through pressure source action pane 412a, so that action bars is inserted in operating sleeve 421.
Hand hydraulic jack 420 adopts a hand jack setting element 460 to carry out radially and axis location.This hand jack setting element 460 comprises that one is welded on the mounting flange 461 on cylindrical shell 412 inwalls of pressure source installation component 410 and adopts securing member to be arranged on the locating flange 462 on mounting flange 461, and locating flange 462 carries out radial and axial location to the cylinder body 422 in hand hydraulic jack 420.
In order to coordinate hand hydraulic jack 420, on cylindrical shell 412, be provided with a fuel tank, fuel tank is connected with the plunger shaft of hand hydraulic jack 420 by oil pipe.
One upper grip bearing 430 is installed on cylindrical shell 412, this upper grip bearing 430 comprises a support column 431 and the support arm 432 being connected with support column 431, be provided with an annular groove 431a in the bottom of support column 431, when installation, the support column 431 of annular groove 431a bottom part is inserted in the cylindrical shell 412 of pressure source installation component 410, then adopt bolt that two semicircular back-up blocks 433 are installed at cylindrical shell 412 tops, two semicircular back-up blocks 433 are embedded in the annular groove 431a of support column 431, upper grip bearing 430 can rotate around self axis of support column 431 like this, in the time of unloading clip, can first outwards rotate upper grip bearing 430, take out upper fixture block 320 to facilitate, when clamping, again upper grip bearing 430 is gone back to original position.In support column 431, be provided with a push-rod hole 431b, in push-rod hole 431b, slide arrangement has a pressurization push rod 440, and the pressurization bottom of push rod 440 and piston mandril 423 tops of hand hydraulic jack 420 contact.Can certainly adopt Manual mechanical jack to replace hand hydraulic jack.
The fulcrum of the lever boosting-rod 500 in this fixture is hinged on the top of upper grip bearing 410 by a fulcrum pin 510, its one end is provided with a pressure head 520, and the other end is provided with a top 530, and top 530 contacts with the top of pressurization push rod 440.Under clamp position, pressure head 520 just contacts with upper fixture block 320, and upper fixture block 320 is common by processed part, as the valve body 600 in figure clamps with lower fixture block 310.
In the time of needs clamping valve 600, first valve body 600 is placed on lower fixture block 310, then upper fixture block 320 is placed on valve body 600, then manual operation hand hydraulic jack 420 pressurizes.In pressure process, the piston mandril 423 in hand hydraulic jack 420 protrudes upward gradually, promotes pressurization push rod 440 and moves upward.And the pressurization push rod 440 moving upward is equipped with 530 rear end, top and moves upward by coming directly towards 530 activation lever formula boosting-rods 500, and being equipped with the front end of pressure head 520, lever boosting-rod 500 moves downward, exert pressure to upper fixture block 320, by upper fixture block 320, valve body 600 is clamped, so that processing.
For measure lever boosting-rod 500 be equipped with pressure head 520 one end give 320 applied pressures of upper fixture block, and then adjustment institute applied pressure, between the bottom of hand hydraulic jack 420 and mounting seat 411, be provided with LOAD CELLS 450 or a force cell, be applied to lever boosting-rod 500 power of 530 rear end, top is housed in order to detect hand hydraulic jack 420, this LOAD CELLS 450 or force cell connect a pressure display instrument table, be applied to lever boosting-rod 500 power of 530 rear end, top is housed directly to observe hand hydraulic jack 420.So just can adjust chucking power size between upper and lower fixture block 320,310 according to institute's processing parts.
When after valve body 600 completion of processing, for processed valve body 600 for convenience detach, the gravitational moment that lever boosting-rod 500 is equipped with 530 rear end, top by the utility model is designed to be greater than lever boosting-rod 500 and is equipped with the gravitational moment of the front end of pressure head 520, like this after the piston mandril 423 of hand hydraulic jack 420 moves downward, after it is acted on pressure that lever boosting-rod 500 is equipped with 530 rear end, top and is disappeared by push rod 440, the front end that lever boosting-rod 500 is equipped with top 530 can decline automatically, and being equipped with the front end of pressure head 520, lever boosting-rod 500 will automatically rise, then outwards rotate upper grip bearing 430, so just easily by upper fixture block 320 removal from valve body 600, the valve body 600 that taking-up processes.
Certainly after valve body 600 completion of processing, for processed valve body 600 for convenience detach, after the piston mandril 423 of hand hydraulic jack 420 moves downward, after it is acted on pressure that lever boosting-rod 500 is equipped with 530 rear end, top and is disappeared by pressurization push rod 440, can also have following various ways to force lever boosting-rod 500 that 530 rear end, top is housed and automatically decline, and lever boosting-rod 500 is equipped with the front end of pressure head 520 and will automatically rises:
1, on the fulcrum shaft 510 of lever boosting-rod 500, a torsion spring is set, torsion spring one end acts on lever boosting-rod 500, the other end acts on upper grip bearing 410, after the piston mandril 423 of hand hydraulic jack 420 moves downward, after it is acted on pressure that lever boosting-rod 500 is equipped with 530 rear end, top and is disappeared by pressurization push rod 440, torsion spring just can make the rear end that lever boosting-rod 500 is equipped with top 530 automatically decline, and being equipped with the front end of pressure head 520, lever boosting-rod 500 automatically rises
2, be equipped with between 530 rear end, top and upper grip bearing 410 and be connected with stage clip or extension spring at lever boosting-rod 500, after the piston mandril 423 of hand hydraulic jack 420 moves downward, after it is acted on pressure that lever boosting-rod 500 is equipped with 530 rear end, top and is disappeared by pressurization push rod 440, stage clip or extension spring just can make lever boosting-rod 500 that 530 rear end, top is housed automatically to decline, and lever boosting-rod 500 is equipped with the front end of pressure head 520 and automatically rises.
Claims (11)
1. a fixture for the adjustable clamping processing parts of chucking power, comprising:
One is convenient to be arranged on the base plate on lathe;
Be arranged on the lower fixture block on described base plate,
The upper fixture block that coordinates clamping institute processing parts with described lower fixture block, is characterized in that, also comprises:
One is arranged on the pressure source installation component on described base plate, and described pressure source installation component comprises a mounting seat and a cylindrical shell being arranged in described mounting seat, offers pressure source action pane on described cylindrical shell;
Be arranged on the pressure source in the cylindrical shell of described pressure source installation component, the operation part of described pressure source is appeared by the pressure source action pane on the cylindrical shell of described pressure source installation component;
Be installed in rotation on the upper grip bearing on the cylindrical shell of described pressure source installation component, in described upper grip bearing, be provided with push-rod hole;
The one pressurization push rod through described push-rod hole, the Output pressure end in contact of the bottom of described pressurization push rod and described pressure source;
One is hinged on the lever boosting-rod on described upper grip bearing, the upper end of described pressurization push rod acts on the rear end of described lever boosting-rod, forces the front end of described lever boosting-rod to act on upper grip and by described upper grip described institute processing parts is clamped between described upper and lower fixture block by leverage.
2. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 1, is characterized in that, described pressure source is a hand jack, and the top of the piston mandril in described hand jack contacts with the bottom of described pressurization push rod.
3. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 2, it is characterized in that, dispose a LOAD CELLS or force cell in the bottom of described hand jack, be applied to the power on lever boosting-rod rear end in order to detect hand jack, described LOAD CELLS or force cell connect a pressure display instrument table.
4. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 2, is characterized in that, described hand jack is hand hydraulic jack or Manual mechanical jack; In the time that described hand jack is hand hydraulic jack, be arranged on the outer wall of cylindrical shell of described pressure source installation component with the matching used fuel tank of this hand hydraulic jack, between described fuel tank and the plunger shaft of hand hydraulic jack, be connected by oil pipe.
5. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 2, it is characterized in that, in the cylindrical shell of described pressure source installation component, dispose a hand jack setting element, so that hand jack setting element is carried out radially and axis location.
6. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 5, it is characterized in that, described hand jack setting element comprises that one is fixed on the mounting flange on the cylinder inboard wall of described pressure source installation component and adopts securing member to be arranged on the locating flange on described mounting flange, and described locating flange carries out radial and axial location to the cylinder body in described hand jack.
7. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 1, it is characterized in that, described upper grip bearing comprises a support column and the support arm being connected with described support column, be provided with an annular groove in the bottom of described support column, the support column of annular groove bottom part inserts in the cylindrical shell of described pressure source installation component, adopt securing member that two semicircular back-up blocks are installed at the cylindrical shell top of described pressure source installation component, two semicircular back-up blocks are embedded in the annular groove of described support column, described upper grip bearing can rotate around self axis of described support column, described lever boosting-rod is hinged on the front end of described support arm.
8. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 1, is characterized in that, the gravitational moment of described lever boosting-rod the second end is greater than the gravitational moment of first end.
9. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 1, is characterized in that, hinged employing one fulcrum pin between described lever boosting-rod and upper grip bearing carries out hinged.
10. the fixture of the adjustable clamping processing parts of a kind of chucking power as claimed in claim 9, it is characterized in that, on described fulcrum pin, be wound with a torsion spring, described torsion spring one end acts on described lever boosting-rod, the other end acts on described upper grip bearing, described torsion spring acts on by pressurization push rod after the pressure disappearance on described lever boosting-rod rear end at described pressure source, force the rear end of described lever boosting-rod to move downward, the pressure that lever boosting-rod front end is added on described upper fixture block disappears.
The fixture of the clamping processing parts that 11. a kind of chucking powers as claimed in claim 1 are adjustable, it is characterized in that, between the rear end of described lever boosting-rod and described upper grip bearing, be connected with stage clip or extension spring, described pressure source acts on after the pressure disappearance on described lever boosting-rod rear end by pressurization push rod, described stage clip or extension spring force the rear end of described lever boosting-rod to move downward, and the pressure that lever boosting-rod front end is applied on described upper fixture block disappears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205030.1U CN203831125U (en) | 2014-04-24 | 2014-04-24 | Clamping force adjustable clamp for clamping machined part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205030.1U CN203831125U (en) | 2014-04-24 | 2014-04-24 | Clamping force adjustable clamp for clamping machined part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203831125U true CN203831125U (en) | 2014-09-17 |
Family
ID=51509013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205030.1U Expired - Lifetime CN203831125U (en) | 2014-04-24 | 2014-04-24 | Clamping force adjustable clamp for clamping machined part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203831125U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493587A (en) * | 2014-12-16 | 2015-04-08 | 重庆迪科汽车研究有限公司 | Sheet metal part clamping modular device |
| CN104924240A (en) * | 2015-06-25 | 2015-09-23 | 温州大学 | Stroke-fixed cam supporting device capable of monitoring clamping force and method thereof |
| CN105142326A (en) * | 2015-08-26 | 2015-12-09 | 中国工程物理研究院流体物理研究所 | Support device |
| CN106735497A (en) * | 2016-11-28 | 2017-05-31 | 南安市威速电子科技有限公司 | A kind of efficient handware intercept unit |
-
2014
- 2014-04-24 CN CN201420205030.1U patent/CN203831125U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493587A (en) * | 2014-12-16 | 2015-04-08 | 重庆迪科汽车研究有限公司 | Sheet metal part clamping modular device |
| CN104924240A (en) * | 2015-06-25 | 2015-09-23 | 温州大学 | Stroke-fixed cam supporting device capable of monitoring clamping force and method thereof |
| CN104924240B (en) * | 2015-06-25 | 2016-07-13 | 温州大学 | Clamping force can be monitored and determine stroke cam support devices and methods therefor |
| CN105142326A (en) * | 2015-08-26 | 2015-12-09 | 中国工程物理研究院流体物理研究所 | Support device |
| CN106735497A (en) * | 2016-11-28 | 2017-05-31 | 南安市威速电子科技有限公司 | A kind of efficient handware intercept unit |
| CN106735497B (en) * | 2016-11-28 | 2018-05-29 | 南安市威速电子科技有限公司 | A kind of handware intercept unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203831125U (en) | Clamping force adjustable clamp for clamping machined part | |
| US20190030664A1 (en) | Wheel bolt pressing device | |
| CN201960377U (en) | Hydraulic clamp for finish machining of motor housing | |
| CN201988969U (en) | Fixture for hydraulic clamping vehicle for thin-walled parts | |
| CN203003556U (en) | Hydraulic quick-change clamp for drilling and tapping machining of belt pulley | |
| CN102001002B (en) | Fixture for machining knuckle backing pin hole | |
| CN203992498U (en) | A kind of CA6140 lathe tail-bracket boring grab | |
| CN104647089A (en) | Hydraulic driving type centering clamping device for outer circle | |
| CN201235474Y (en) | Lathe float hydraulic fixture | |
| CN202877977U (en) | Frock clamp for tensioning inner hole | |
| CN104493580A (en) | Quick clamping fixture for rough boring of engine cylinder block | |
| CN104084811A (en) | Dual-ring positioning clamp for output shaft | |
| CN201189610Y (en) | Clamper for positioning and clamping abnormal form part on lathe | |
| CN102699715B (en) | Clamping device | |
| CN216029526U (en) | Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare | |
| CN104209860A (en) | Special flat floating fixture for precision honing machine | |
| CN102430936B (en) | Self-adaptive blank outline clamping mechanism | |
| CN104511668A (en) | Shaft clamp capable of replacing clamping head | |
| CN203831139U (en) | Hydraulic clamp with adjustable clamping force capable of being observed directly | |
| CN203712368U (en) | Sheet-type component inner hole turning clamp | |
| CN203936662U (en) | A kind of output shaft dicyclo positioning fixture | |
| CN203765338U (en) | Gas-liquid pressure clamp system for drilling T-shaped guide rail connecting hole of elevator | |
| CN203751708U (en) | Jaw type self-centering machine tool center frame | |
| CN203610994U (en) | External floating clamping mechanism with spring expansion self-locking function | |
| CN201579603U (en) | Numerical controlling, machining and locating, and clamping device for elongator case behind automobile engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160727 Address after: Pudong New Area town 201300 Shanghai Huicheng Road No. 718 Building 2 Patentee after: SHANGHAI HONGON MECHANICAL TECHNOLOGY Co.,Ltd. Address before: 201300 Shanghai city Pudong New Area South Road No. 9408 Patentee before: SHANGHAI MAUD GROUP Co.,Ltd. Patentee before: SHANGHAI HONGON MECHANICAL TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |