CN106853582A - A kind of bidirectional locking mechanism - Google Patents
A kind of bidirectional locking mechanism Download PDFInfo
- Publication number
- CN106853582A CN106853582A CN201611257928.3A CN201611257928A CN106853582A CN 106853582 A CN106853582 A CN 106853582A CN 201611257928 A CN201611257928 A CN 201611257928A CN 106853582 A CN106853582 A CN 106853582A
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- screw
- locking
- sliding block
- locking tool
- chuck
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- 230000007246 mechanism Effects 0.000 title claims abstract description 43
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000005381 potential energy Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035611 feeding Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A kind of bidirectional locking mechanism, including two locking tools in drive mechanism, moving direction when two locking tools work are opposite.Moving forward and backward for drive mechanism, can drive corresponding locking tool to work, and moving forward and backward for drive mechanism be impulse stroke, and destroked waste improves the utilization rate of drive mechanism, and easy to use, compact conformation.
Description
Technical field
The present invention relates to screw locking technical field, and in particular to screw locking mechanism.
Background technology
Screw gun, is a kind of locking tool, for lock screw.Application publication number is special for the invention of the A of CN 105750894
Sharp application documents disclose a kind of screw of insert row kludge and are screwed into device, wherein, lifting slider coordinates with slide rail, and L-shaped is installed
Four lead columns are fixed with the level board of plate, lead column is passed down through guide plate, the guiding between L-shaped installing plate and guide plate
Buffer spring is cased with post, electric screwdriver is arranged in L-shaped installing plate.Above-mentioned screw is screwed into the buffer spring in device, uses
Compensated in the locking process that device is screwed into screw.
Above-mentioned screw is screwed into device, for drive electric screwdriver lift drive mechanism (including lifting slider, L-shaped pacify
Dress plate), it drives electric screwdriver to decline, and is impulse stroke, and drives electric screwdriver to rise and reset, be then non-working line
Journey, in this way, the half action that drive mechanism is made is impulse stroke, second half action is non-impulse stroke, not only causes the energy
Waste, and, operating efficiency cannot be improved.Above-mentioned impulse stroke and inoperative stroke are collectively referred to as the two-way row of drive mechanism
Journey.
The content of the invention
Technical problem solved by the invention：How the utilization of the two-way travel of the drive mechanism that is provided with screw gun is improved
Rate, to improve the operating efficiency of screw gun lock screw.
In order to solve the above technical problems, the present invention provides following technical scheme：A kind of bidirectional locking mechanism, including be arranged on
Two locking tools in drive mechanism, moving direction when two locking tools work is opposite.
By above-mentioned technical proposal, drive mechanism moves ahead, and drives the first locking tool in two locking tools to move ahead, and first
Part of the locking tool locking in front of it；Drive mechanism is retreated and resetted, and drives the second locking work in two locking tools
Row after tool, moving direction when being worked due to two locking tools conversely, drive mechanism drives row after the second locking tool, for
It is then forward, part of the second locking tool locking in front of it for second locking tool.In this way, the advance of drive mechanism
And retrogressing, can drive corresponding locking tool to work, moving forward and backward for drive mechanism be impulse stroke, destroked wave
Take.
In above-mentioned technical proposal, locking tool can be screw gun, and the part that locking tool is locked mutually should be screw.
The drive mechanism include linear reciprocation driver element, the first sliding block on linear reciprocation driver element and
Second sliding block, the first locking tool in two locking tools is arranged on the first sliding block, the second lock in two locking tools
Clamping tool is arranged on the second sliding block, and adjustable spring is provided between the first sliding block and the second sliding block.The linear reciprocation drives single
Unit is preferably Rodless cylinder, and the piston of cylinder moves ahead, and drives the first sliding block thereon and the first locking tool to move ahead, the first locking
The front end of instrument is working end, and working end pushes against screw to be tightened, meanwhile, adjustable spring is compressed, and gathers elastic potential energy, the
The working end rotation of one locking tool, drives screw rotation and is screwed into corresponding parts, to make the working end with screw
Move and move, the elastic potential energy of adjustable spring accumulation is released, before ordering about the first sliding block and the first locking tool thereon
OK, the working end of the first locking tool is made to be moved with the movement of screw, it is ensured that working end pushes against screw.Adjustable spring is to
The role of two locking tools are same as adjustable spring to the role of first locking tool.In the work of the first locking tool
When, for elastic potential energy is released to the second locking tool by the adjustable spring for avoiding compression, the side of the second sliding block is provided with and limits it
Slide the second block；Similarly, when the second locking tool works, for be released to for elastic potential energy by the adjustable spring for avoiding compression
First locking tool, the side of the first sliding block is provided with and limits its first block of slip.
The rear end of the first locking tool is fixed on the first sliding block by fixation kit after first, before the first locking tool
Fixation kit is connected with the first sliding block before end passes through first, is provided with the first flexible bullet before first between fixation kit and the first sliding block
Spring, the telescopic direction of the first adjustable spring is same as moving direction when the first locking tool works；After second locking tool
End is fixed on the second sliding block by fixation kit after second, the front end of the second locking tool pass through second before fixation kit and the
Two sliding blocks are connected, and are provided with the second adjustable spring, the flexible side of the second adjustable spring before second between fixation kit and the second sliding block
To the moving direction being same as when the second locking tool works.The effect of above-mentioned first adjustable spring is same as the second flexible bullet
Spring, by taking the first adjustable spring as an example, when the first locking tool works, the heat that the first locking tool motor is produced can make first
There is micro axial deformation in locking tool, the first adjustable spring can compensate for this axial deformation；The work of the first locking tool
Hold and screw Accurate align to be tightened and contact, working end need to occur micro radial displacement, and the first adjustable spring can make work
Make end and micro radial displacement occurs.
The drive mechanism is arranged in frame, and frame is provided with the first coupling assembly, and the first coupling assembly is provided with spiral shell
Silk chuck, screw chuck is located at the front of the first locking tool in two locking tools；Frame is provided with the second coupling assembly, the
Two coupling assemblies are provided with Screw clamp, and Screw clamp is located at the front of the second locking tool in two locking tools.Above-mentioned spiral shell
Silk chuck and Screw clamp are the different devices for clamping screw, and the working end of locking tool turns screw, makes screw chuck
Or the screw in Screw clamp is screwed into corresponding parts, afterwards, screw chuck or Screw clamp discharge screw again, lock work
Tool can further tighten screw.
The screw chuck include be fixed in the first coupling assembly screw chuck fixed block, be hinged on screw chuck consolidate
Determine the left screw chuck and right screw chuck on block, linear air cylinder, linear gas are provided between left screw chuck and right screw chuck
The piston rod of cylinder is flexibly connected with the tail end of left screw chuck, and the cylinder body of linear air cylinder connects with the tail end activity of right screw chuck
Connect.By above-mentioned design, during clamping screw, linear air cylinder is extended action, and linear air cylinder drives the front end and the right side of left screw chuck
The front end opposite direction rotating of screw chuck, clamping screw；During release screw, linear air cylinder makees contractive action.
The Screw clamp is including the clamping jaw cylinder in the second coupling assembly, on the left clamping jaw of clamping jaw cylinder
Left Screw clamp and the right Screw clamp on the right clamping jaw of clamping jaw cylinder.
The present invention is a kind of bidirectional locking mechanism, and the mechanism can be used for the locking of locking tool itself non-displacement compensation function
Instrument, mechanism can be compensated to the displacement that locking process is produced, and, two lock set clamping tools share a set of bit shift compensation
Mechanism, cost-effective, save space.
Mechanism controls two cover locking tool feedings by a cylinder, and completes locking action, saves working space, cylinder
Stretch out and return and be impulse stroke, improve cylinder utilization rate.This kind of mechanism installs, easy to use, compact conformation.
Brief description of the drawings
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of front view of bidirectional locking mechanism of the invention；
Fig. 2 is a kind of top view of bidirectional locking mechanism of the invention；
Fig. 3 is a kind of dimensional structure diagram of bidirectional locking mechanism in Fig. 1；
Fig. 4 is a kind of dimensional structure diagram at another visual angle of bidirectional locking mechanism in Fig. 1；
Fig. 5 is the combining structure schematic diagram of the first locking tool 21 and the second locking tool 22 in Fig. 1；
Fig. 6 is the stereogram of Fig. 5.
Symbol description in figure：
10th, cylinder；11st, the first sliding block；12nd, the second sliding block；13rd, adjustable spring；14th, substrate；15th, the first slide rail；16th,
Two slide rails；17th, the first block；18th, the second block；
21st, the first locking tool；22nd, the second locking tool；
31st, fixation kit after first；32nd, fixation kit before first；321st, fixed block before first；322nd, fixture block before first；
33rd, the first adjustable spring；
40th, frame；
50th, screw chuck；51st, screw chuck fixed block；52nd, left screw chuck；53rd, right screw chuck；54th, screw chuck
Mounting blocks；55th, screw chuck contiguous block；
60th, Screw clamp；61st, clamping jaw cylinder；62nd, left Screw clamp；63rd, right Screw clamp；64th, clamping jaw cylinder connection
Plate；65th, clamping jaw cylinder mounting plate.
Specific embodiment
With reference to Fig. 1 to Fig. 4, a kind of bidirectional locking mechanism, including two locking tools in drive mechanism, two
Moving direction when locking tool works is opposite.Two locking tools are respectively the first locking tool and the second locking tool.
With reference to Fig. 3 to Fig. 6, the drive mechanism is including the cylinder 10 in frame 40, on cylinder piston
Substrate 14, the first slide rail 15 on substrate and the second slide rail 16, the first sliding block for being slidably fitted on the first slide rail
11 are arranged on the first sliding block with the second sliding block 12 being slidably fitted on the second slide rail, the first locking tool 21, the second locking
Instrument 22 is arranged on the second sliding block, and adjustable spring 13 is provided between the first sliding block and the second sliding block.The substrate is provided with
One block 17 and the second block 18, the first sliding block 11 and the second sliding block 12 are located between the first block and the second block.
With reference to Fig. 5, Fig. 6, fixation kit 31 is fixed on the first sliding block 11 after the rear end of the first locking tool 21 passes through first
On, fixation kit 32 is connected with the first sliding block before the front end of the first locking tool passes through first, fixation kit and first before first
The first adjustable spring 33 is provided between sliding block, the telescopic direction of the first adjustable spring is same as shifting when the first locking tool works
Dynamic direction.Wherein, fixture block 322 before fixed block 321 and first before fixation kit 32 includes first before first, the described first flexible bullet
Spring 33 be connected to first before on fixed block 321, fixed block clamps by way of clamping up and down before fixture block and first before first
One locking tool.
The rear end of the second locking tool 22 is fixed on the second sliding block 12 by fixation kit after second, the second locking tool
Front end be connected with the second sliding block by fixation kit before second, being provided with second between fixation kit and the second sliding block before second stretches
Contracting spring, the telescopic direction of the second adjustable spring is same as moving direction when the second locking tool works.Wherein, it is solid before second
Determining component includes fixture block before fixed block and second before second, second adjustable spring before being connected to second on fixed block, second
Fixed block clamps the second locking tool by way of clamping up and down before preceding fixture block and second.
The frame 40 is u-shaped, and a fork bifurcation of U-shaped frame is provided with the first coupling assembly, the first coupling assembly
Screw chuck 50 is provided with, screw chuck is located at the front of the first locking tool 21 in two locking tools.U-shaped frame it is another
One fork bifurcation is provided with the second coupling assembly, and the second coupling assembly is provided with Screw clamp 60, and Screw clamp is located at two lockings
The front of the second locking tool 22 in instrument.
With reference to Fig. 3, Fig. 4, the screw chuck 50 include being fixed on screw chuck fixed block 51 in the first coupling assembly,
Left screw chuck 52 and right screw chuck 53 on screw chuck fixed block are hinged on, between left screw chuck and right screw chuck
Linear air cylinder is provided with, the piston rod of linear air cylinder is flexibly connected with left screw chuck, the cylinder body of linear air cylinder and right screw chuck
It is flexibly connected.Wherein, the first coupling assembly includes that the screw chuck mounting blocks 54 being fixedly connected with frame and screw chuck are installed
The screw chuck contiguous block 55 that block is fixedly connected, the screw chuck fixed block 51 is fixed on screw chuck contiguous block.
The Screw clamp 60 is including the clamping jaw cylinder 61 in the second coupling assembly, installed in the left folder of clamping jaw cylinder
Left Screw clamp 62 on pawl and the right Screw clamp 63 on the right clamping jaw of clamping jaw cylinder.Wherein, the second coupling assembly bag
The clamping jaw cylinder connecting plate 64 being fixedly connected with frame 40, the clamping jaw cylinder being fixedly mounted on clamping jaw cylinder connecting plate is included to install
Plate 65, the clamping jaw cylinder 61 is arranged on clamping jaw cylinder mounting plate.
In real work, the piston of cylinder 10 moves ahead, and drives the first sliding block 11 thereon and the first locking tool 21 to move ahead,
The working end of the first locking tool pushes against the screw to be tightened clamped by screw chuck 50, meanwhile, adjustable spring 13 is compressed, the
Two sliding blocks 12 are stopped that adjustable spring 13 gathers elastic potential energy by the second block 18.
Screw is screwed into corresponding parts by the first locking tool 21, and screw advances, the elastic potential energy of the accumulation of adjustable spring 13
Be released, order about the first sliding block 11 and the first locking tool 21 thereon moves ahead, make the working end of the first locking tool with
The movement of screw and move, it is ensured that working end push against screw.
After thread part is screwed into corresponding parts, the left screw chuck 52 and right screw chuck 53 of screw chuck 50 discharge
The screw clamped by it；Afterwards, the first locking tool 21 continues to tighten screw.
The piston of cylinder 10 is retreated and resetted, and drives row after the second sliding block 12 and the second locking tool 22 thereon, for the
For two locking tools 22, the retrogressing of the piston of cylinder 10 is its advance, and the working end of the second locking tool is pushed against by screw clamp
The screw to be tightened of the clamping of tool 60, meanwhile, adjustable spring 13 is compressed, and the first sliding block 11 is stopped by the first block 17, and stretch bullet
Spring 13 gathers elastic potential energy.
Screw is screwed into corresponding parts by the second locking tool 22, and screw advances, the elastic potential energy of the accumulation of adjustable spring 13
Be released, order about the second sliding block 12 and the second locking tool 22 thereon moves ahead, make the working end of the second locking tool with
The movement of screw and move, it is ensured that working end push against screw.
After thread part is screwed into corresponding parts, Screw clamp 60 discharges the screw clamped by it；Afterwards, the second locking
Instrument 22 continues to tighten screw.
Above content is only better embodiment of the invention, for one of ordinary skill in the art, according to the present invention
Thought, will change in specific embodiments and applications, this specification content should not be construed as to this hair
Bright limitation.
Claims (6)
1. a kind of bidirectional locking mechanism, including two locking tools in drive mechanism, it is characterised in that：Two lockings
Moving direction during tool work is opposite.
2. a kind of bidirectional locking mechanism as claimed in claim 1, it is characterised in that：The drive mechanism is driven including linear reciprocation
Moving cell, the first sliding block (11) and the second sliding block (12) on linear reciprocation driver element, in two locking tools
First locking tool (21) on the first sliding block, installed in second slide by the second locking tool (22) in two locking tools
On block, adjustable spring (13) is provided between the first sliding block and the second sliding block.
3. a kind of bidirectional locking mechanism as claimed in claim 2, it is characterised in that：The rear end of the first locking tool (21) passes through
Fixation kit (31) is fixed on the first sliding block (11) after first, and the front end of the first locking tool is by fixation kit before first
(32) it is connected with the first sliding block, is provided with the first adjustable spring (33) before first between fixation kit and the first sliding block, first stretches
The telescopic direction of spring is same as moving direction when the first locking tool works；
The rear end of the second locking tool (22) is fixed on the second sliding block (12) by fixation kit after second, the second locking tool
Front end be connected with the second sliding block by fixation kit before second, being provided with second between fixation kit and the second sliding block before second stretches
Contracting spring, the telescopic direction of the second adjustable spring is same as moving direction when the second locking tool works.
4. a kind of bidirectional locking mechanism as claimed in claim 1, it is characterised in that：The drive mechanism is arranged on frame (40)
On, frame is provided with the first coupling assembly, and the first coupling assembly is provided with screw chuck (50), and screw chuck is located at two lockings
The front of the first locking tool (21) in instrument；
Frame is provided with the second coupling assembly, and the second coupling assembly is provided with Screw clamp (60), and Screw clamp is located at two locks
The front of the second locking tool (22) in clamping tool.
5. a kind of bidirectional locking mechanism as claimed in claim 4, it is characterised in that：The screw chuck (50) is including being fixed on
Screw chuck fixed block (51), left screw chuck (52) and the right side being hinged on screw chuck fixed block in first coupling assembly
Screw chuck (53), is provided with linear air cylinder, the piston rod of linear air cylinder and left screw between left screw chuck and right screw chuck
Chuck is flexibly connected, and the cylinder body of linear air cylinder is flexibly connected with right screw chuck.
6. a kind of bidirectional locking mechanism as claimed in claim 4, it is characterised in that：The Screw clamp (60) is including being arranged on
Clamping jaw cylinder (61) in second coupling assembly, the left Screw clamp (62) on the left clamping jaw of clamping jaw cylinder and installed in folder
Right Screw clamp (63) on the right clamping jaw of pawl cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257928.3A CN106853582B (en) | 2016-12-30 | 2016-12-30 | A kind of bidirectional locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257928.3A CN106853582B (en) | 2016-12-30 | 2016-12-30 | A kind of bidirectional locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106853582A true CN106853582A (en) | 2017-06-16 |
| CN106853582B CN106853582B (en) | 2018-10-30 |
Family
ID=59126552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611257928.3A Active CN106853582B (en) | 2016-12-30 | 2016-12-30 | A kind of bidirectional locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106853582B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496728A (en) * | 2020-11-25 | 2021-03-16 | 上汽通用五菱汽车股份有限公司 | Automatic tightening mechanism with axial telescopic function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009095209A1 (en) * | 2008-01-31 | 2009-08-06 | Robert Bosch Gmbh | Assembly tool |
| US20100162854A1 (en) * | 2006-04-12 | 2010-07-01 | Michael Vollmuth | Screwdriving system with variably adjustable screwdriving spindles |
| WO2012126204A1 (en) * | 2011-03-21 | 2012-09-27 | 山东同力达智能机械有限公司 | Axle-end nuts assembling system for crh2-type multiple units |
| CN103240587A (en) * | 2013-04-02 | 2013-08-14 | Tcl海外电子（惠州）有限公司 | Automatic screw locking device |
| CN103692200A (en) * | 2013-12-27 | 2014-04-02 | 苏州博众精工科技有限公司 | Locking mechanism |
| CN104759873A (en) * | 2015-04-13 | 2015-07-08 | 吴中区木渎蒯斌模具加工厂 | Camshaft screw screwing device for parts assembling machine of sewing machine |
| CN105750894A (en) * | 2016-04-18 | 2016-07-13 | 苏州鸿普精密模具有限公司 | Screw twisting device of socket assembling machine |
| CN205817257U (en) * | 2016-07-19 | 2016-12-21 | 中山市鑫光智能系统有限公司 | A kind of rigging screw device automatically |
-
2016
- 2016-12-30 CN CN201611257928.3A patent/CN106853582B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100162854A1 (en) * | 2006-04-12 | 2010-07-01 | Michael Vollmuth | Screwdriving system with variably adjustable screwdriving spindles |
| WO2009095209A1 (en) * | 2008-01-31 | 2009-08-06 | Robert Bosch Gmbh | Assembly tool |
| WO2012126204A1 (en) * | 2011-03-21 | 2012-09-27 | 山东同力达智能机械有限公司 | Axle-end nuts assembling system for crh2-type multiple units |
| CN103240587A (en) * | 2013-04-02 | 2013-08-14 | Tcl海外电子（惠州）有限公司 | Automatic screw locking device |
| CN103692200A (en) * | 2013-12-27 | 2014-04-02 | 苏州博众精工科技有限公司 | Locking mechanism |
| CN104759873A (en) * | 2015-04-13 | 2015-07-08 | 吴中区木渎蒯斌模具加工厂 | Camshaft screw screwing device for parts assembling machine of sewing machine |
| CN105750894A (en) * | 2016-04-18 | 2016-07-13 | 苏州鸿普精密模具有限公司 | Screw twisting device of socket assembling machine |
| CN205817257U (en) * | 2016-07-19 | 2016-12-21 | 中山市鑫光智能系统有限公司 | A kind of rigging screw device automatically |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496728A (en) * | 2020-11-25 | 2021-03-16 | 上汽通用五菱汽车股份有限公司 | Automatic tightening mechanism with axial telescopic function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106853582B (en) | 2018-10-30 |
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Address after: The Wujiang economic and Technological Development Zone West Road Wujiang District of Suzhou City, Jiangsu Province, No. 666 215200 Applicant after: BOZHON PRECISION INDUSTRY TECHNOLOGY Co.,Ltd. Address before: The Wujiang economic and Technological Development Zone West Road Wujiang District of Suzhou City, Jiangsu Province, No. 666 215200 Applicant before: BOZHONG (SUZHOU) PRECISION INDUSTRY TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20231206 Address after: 611230 Floors 1 to 2, Building 112, Standardization Plant, No. 333, Middle Chenxi Avenue, Chongzhou Intelligent Application Industry Functional Zone, Chengdu, Sichuan Patentee after: Sichuan Zhongda Precision Technology Co.,Ltd. Address before: 215200 No. 666, Hu Xin Road, Wujiang economic and Technological Development Zone, Wujiang District, Suzhou, Jiangsu Patentee before: BOZHON PRECISION INDUSTRY TECHNOLOGY Co.,Ltd. |