CN104930037B - Self-tapping nail nut seat, detachable assembly applying same and machining process - Google Patents
Self-tapping nail nut seat, detachable assembly applying same and machining process Download PDFInfo
- Publication number
- CN104930037B CN104930037B CN201510342589.8A CN201510342589A CN104930037B CN 104930037 B CN104930037 B CN 104930037B CN 201510342589 A CN201510342589 A CN 201510342589A CN 104930037 B CN104930037 B CN 104930037B
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- CN
- China
- Prior art keywords
- self
- pedestal
- nut seat
- threading pin
- tapping nail
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- 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.)
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- 238000003754 machining Methods 0.000 title claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 title abstract description 16
- 238000004080 punching Methods 0.000 claims abstract description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 68
- 238000000465 moulding Methods 0.000 claims description 43
- 238000012545 processing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000004513 sizing Methods 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 28
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 210000005056 cell body Anatomy 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012913 prioritisation Methods 0.000 description 4
- 241000565675 Oncomelania Species 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/02—Nuts or like thread-engaging members made of thin sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention belongs to the technical field of automobile parts, and particularly relates to a self-tapping nail nut seat, a detachable assembly applying the same and a machining process. The self-tapping nail nut seat, the detachable assembly and the machining process solve the problems that in the prior art, it is difficult to assemble, and practicability is poor. The self-tapping nail nut seat comprises a seat body formed by stamping a plate. The seat body is provided with a forming protrusion, wherein the outer end of the forming protrusion protrudes out of one face of the seat body, the inner side is provided with an inner thread capable of being connected with an outer thread of a self-tapping nail in a threaded mode. One end of the seat body is provided with a peripheral positioning mechanism capable of preventing the seat body from rotating in the peripheral direction after the seat body is fixed. The other end of the seat body is provided with a damping mechanism capable of being connected with the tip end of the self-tapping nail. The detachable assembly comprises the self-tapping nail nut seat and the self-tapping nail arranged on the self-tapping nail nut seat in a penetrating mode. The self-tapping nail nut seat forming protruding machining process includes the steps of A, small hole punching, B, forming and C fine punching. The self-tapping nail nut seat, the detachable assembly and the machining process have the advantages of being easy to assemble and high in practicability.
Description
Technical field
The invention belongs to technical field of automobile parts, its detachable of more particularly, to a kind of self threading pin nut seat and application
Assembly and processing technique.
Background technology
Self threading pin nut seat and the detachable member matching with self threading pin are a kind of conventional auto parts machineries, self tapping oncomelania
Automobile hub cap can be installed by female seat with reference to self threading pin.Existing self threading pin nut seat is threaded connection with self threading pin, but
It is to be not easy to carry out assembling assembling between existing self threading pin nut seat and self threading pin and screw in torsion and destruction torsion is poor,
Mainly the female thread accuracy of manufacture on self threading pin nut seat is poor, virtually shortens the service life of self threading pin, secondly, self tapping
Oncomelania female seat and self threading pin easily loosens and noise is larger after matching with self threading pin, in addition, self threading pin nut seat is difficult to position
It is susceptible to displacement, processing technique is complicated, service life is short and poor practicability after fixing and fixing.
Present invention
The purpose of the present invention is for the problems referred to above, provides a kind of design more reasonable, can reach more preferable screw in torsion and
Destroy torsion and practical self threading pin nut seat.
Another object of the present invention is for the problems referred to above, provides one kind to be easily assembled and is not susceptible to loosen, has
The detachable member preferably screwing in torsion and destroying torsion.
A further object of the invention is for the problems referred to above, provides a kind of process is simple and can reach more preferable screw-in torsion
The raised processing technique of molding of power and the self threading pin nut seat destroying torsion.
For reaching above-mentioned purpose, present invention employs following technical proposal: this self threading pin nut seat is included by plate stamping
The pedestal made, pedestal forms outer end protrude from pedestal one side is outer and be formed with can be with the external screw thread of self threading pin for inner side
The molding of threaded internal coiling is raised, can prevent this pedestal from week occurring after one end of pedestal forms and fixed when pedestal
To the circumferentially positioned mechanism rotating, form, in the other end of pedestal, the damping being connected with self threading pin tip.
In this application, raised due to being provided with the molding with internal coiling, it can be easy to assemble, and virtually improves
Efficiency of assembling and can reach more preferable screw in torsion and destroy torsion, and multiple Reusability effect, and can be preferably
Protect self threading pin；Fixing fixing can be improved due to being provided with circumferentially positioned mechanism further；Due to being provided with damping
Mechanism has two effects being prevented from that self threading pin loosens and plays damping；Practical.
In above-mentioned self threading pin nut seat, described molding projection includes being connected as a single entity and have the ring of punching with pedestal
Shape protuberance, and the first otch that at least one is connected with punching is offered on annular protrusion.
In above-mentioned self threading pin nut seat, described damping includes molding bending and protrudes from pedestal in molding projection
Damping portion simultaneously, and between damping portion and pedestal, leave deformation gap, damping portion is provided with and is connected to molding when self threading pin
Can prevent described self threading pin from departing from the anti-loose structure of internal coiling when on raised internal coiling.
In above-mentioned self threading pin nut seat, described anti-loose structure includes being molded in damping portion and symmetrically arranged outstanding
Arm shell fragment, leaves for the space of self tapping nail tip end entrance and self threading pin tip is connected between two pieces of adjacent cantilever shell fragments
On cantilever shell fragment.
In above-mentioned self threading pin nut seat, two pieces of corresponding one end of cantilever shell fragment are respectively provided with arc-shaped concave.
In above-mentioned self threading pin nut seat, one end both sides being connected in damping portion in cantilever shell fragment are respectively provided with decompression
Cell body.
In above-mentioned self threading pin nut seat, described circumferentially positioned mechanism includes molding and bends in pedestal another side and one-tenth
The type overbending direction location division contrary with the molding overbending direction of damping portion, was provided with nail at location division center, in location division
Side have some to the angle turning down away from pedestal side.
This detachable member includes self threading pin nut seat and the self threading pin being located on self threading pin nut seat, this self tapping oncomelania
Female seat includes the pedestal being made up of plate stamping, pedestal forms outer end protrude from pedestal one side outer and inner side is formed with
The molding of the internal coiling that can threaded with self threading pin external screw thread is raised, forms energy after pedestal is fixed in one end of pedestal
Prevent the circumferentially positioned mechanism that this pedestal circumferentially rotates, form and subtracting that self threading pin tip is connected in the other end of pedestal
Shake mechanism.There is more preferable screw-in torsion and destroy torsion, and multiple Reusability effect, and can preferably protect
Self threading pin.
The molding projection processing technique of this self threading pin nut seat comprises the steps:
A, rush aperture: by small hole punching mold tool one aperture of punching on pedestal；
B, molding: processing and forming is carried out by mould to the aperture on pedestal, after processing and forming processing, passes through shaping
Mould carries out shaping at least one times, i.e. has the first otch connecting with aperture on pedestal, forms outer end convex on pedestal
The molding that one side for pedestal and inner side are formed with internal coiling is raised, and the inner side edge in internal coiling is reserved with finish-machining allowance；
C, fine are cut: carry out fine cut by die cutting die to the finish-machining allowance being reserved in internal coiling inner side edge, that is, tool is obtained
There is the molding of the internal coiling that can threaded with the external screw thread of self threading pin raised.
In the molding projection processing technique of above-mentioned self threading pin nut seat, in above-mentioned b step, on described pedestal
Have some the second otch connecting with aperture, and the first described otch and the second otch radially distribute.
Compared with prior art, it is an advantage of the current invention that: 1, design is more reasonable, has internal coiling due to being provided with
Molding is raised, and it can be easy to assemble, and virtually improves efficiency of assembling；Can be further due to being provided with circumferentially positioned mechanism
Improve fixing fixing；Due to being provided with damping, there are two effects being prevented from that self threading pin loosens and plays damping；
More preferable screw-in torsion can be reached and destroy torsion, practical.2nd, structural strength height and long service life.3rd, process is simple and
It is easily manipulated, virtually improves machining accuracy and the quality stability of product, there is more preferable screw-in torsion and destroy torsion,
And multiple Reusability effect, and can preferably protect self threading pin.
Brief description
Fig. 1 is the self threading pin nut seat perspective view that the present invention provides.
Fig. 2 is the self threading pin nut seat main structure diagram that the present invention provides.
Fig. 3 is the present invention looks up structural representation of Fig. 2.
Fig. 4 is the overlooking the structure diagram of Fig. 2.
Fig. 5 is the structural representation of the detachable member blast that the present invention provides.
Fig. 6 is that the processing technique that the present invention provides simplifies structural representation.
In figure, pedestal 1, self threading pin 2, molding projection 3, internal coiling 31, punching 32, annular protrusion 33, the first otch 34, week
To detent mechanism 4, location division 41, cross nail 42, angle 43, damping 5, damping portion 51, deformation gap 52, cantilever shell fragment
53rd, arc-shaped concave 53a, decompression cell body 54, molding gas pressure relief slot 55.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As Figure 1-4, this self threading pin nut seat includes the pedestal 1 being made up of plate stamping, forms outer on pedestal 1
End protrudes from outside the one side of pedestal 1 and inner side is formed with the molding of the internal coiling 31 that can threaded with the external screw thread of self threading pin 2
Raised 3, molding projection 3 includes being connected as a single entity and have the annular protrusion 33 of punching 32 with pedestal 1, and opens on annular protrusion 33
It is provided with the first otch 34 that at least one is connected with punching 32, by mould by described annular protrusion 33 molding, arrange
First otch 34 can be easy to the molding of annular protrusion 33.The inner side edge of internal coiling 31 is located at the externally threaded teeth groove of self threading pin 2
In, realize being connected.By integrally formed structure, not only structural strength is high, and is easy to manufacture processing, also virtually
Improve production efficiency and reduce production cost.
Prioritization scheme, forming when pedestal 1 after by fixation in one end of pedestal 1 to prevent this pedestal 1 from circumferentially rotating
Circumferentially positioned mechanism 4, form, in the other end of pedestal 1, the damping 5 being connected with self threading pin 2 tip.
Specifically, the damping 5 of the present embodiment include molding bending protrude from subtracting of pedestal 1 one side in molding projection 3
Leave deformation gap 52 between shake portion 51, and damping portion 51 and pedestal 1, damping portion 51 is provided with and is connected to molding when self threading pin
Can prevent described self threading pin from departing from the anti-loose structure of internal coiling 31 when on raised 3 internal coiling 31.Prioritization scheme, anti-loose structure
Including being molded in damping portion 51 and symmetrically arranged cantilever shell fragment 53, leave between two pieces of adjacent cantilever shell fragments 53 and supply self tapping
Nail tip end enter space and self threading pin tip be connected on cantilever shell fragment 53.The height in deformation gap 52 sets from pedestal 1
The one end having damping portion 51 is gradually reduced to the other end of pedestal 1.
Further, it is respectively provided with arc-shaped concave 53a two pieces of corresponding one end of cantilever shell fragment 53.Two pieces of cantilever shell fragments
The center of circle of the arc-shaped concave 53a on 53 is misaligned.One end both sides being connected in damping portion 51 in cantilever shell fragment 53 are respectively provided with
Decompression cell body 54.It is respectively provided on two sides with molding gas pressure relief slot 55 in damping portion 51 and pedestal 1 junction.Cantilever shell fragment 53 hanging
End is respectively provided with arc closing in portion, and described arc-shaped concave 53a is arranged on arc closing in portion one end away from cantilever shell fragment 53.
Prioritization scheme, the circumferentially positioned mechanism 4 of the present embodiment includes molding and bends in pedestal 1 another side and molding bending side
To the contrary location division 41 of the molding overbending direction with damping portion 51, it was provided with nail 42 at location division 41 center, in location division
41 side have some to the angle 43 turning down away from pedestal 1 side.It is empty that pedestal 1 and location division 41 are connected to form deformation
Between, one end that deformation spatial altitude is provided with damping portion 51 from pedestal 1 is gradually increased to the other end of pedestal 1.
In order to reach above-mentioned goal of the invention,
As Figure 1-5, the detachable member that this application self threading pin nut seat is made includes self threading pin nut seat and wears
Self threading pin 2 on self threading pin nut seat, prioritization scheme, this self threading pin nut seat includes the pedestal 1 being made up of plate stamping,
Outer end is formed on pedestal 1 and protrudes from one side is outer and inner side is formed with and can be threadeded with self threading pin 2 external screw thread of pedestal 1
The molding projection 3 of spiral 31, forming when pedestal 1 after by fixation in one end of pedestal 1 to prevent this pedestal 1 from circumferentially rotating
Circumferentially positioned mechanism 4, form, in the other end of pedestal 1, the damping 5 being connected with self threading pin 2 tip.
In order to reach above-mentioned goal of the invention,
As shown in figures 1 to 6, the molding projection processing technique of this self threading pin nut seat comprises the steps:
A, rush aperture: by small hole punching mold tool one aperture of punching on pedestal 1；
B, molding: processing and forming is carried out by mould to the aperture on pedestal 1, after processing and forming processing, passes through shaping
Mould carries out shaping at least one times, i.e. have the first otch 34 connecting with aperture on pedestal 1, forms outer on pedestal 1
End protrudes from the one side of pedestal 1 and inner side is formed with the molding projection 3 of internal coiling 31, and the inner side edge in internal coiling 31 is reserved with
Finish-machining allowance；
C, fine are cut: carry out fine cut by die cutting die to the finish-machining allowance being reserved in internal coiling 31 inner side edge, that is, be obtained
There is the molding projection 3 of the internal coiling 31 that can threaded with the external screw thread of self threading pin.
In above-mentioned b step, described pedestal 1 is had some the second otch 35 being connected with aperture, and described
First otch 34 and the second otch 35 radially distribute.Secondly, shaping number of times is at least twice.Described small hole punching mold has, becomes
Pattern tool, shaping mould and die cutting die are successively set on a former.
By molding and multiple integer is so that the total build shape of internal coiling 31 meets self threading pin screw thread requirement；By internal
The refine of spiral 31 shape is so that whole shape at utmost meets the requirement of self threading pin；Reach more preferable screw-in torsion, destruction
Torsion and multiple Reusability effect, and can preferably protect self threading pin.
The simulation hood-like state of installation wheel hub carries out screwing in torsional test data as follows (unit nm):
The part testing data of the present embodiment
| 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# | 9# | 10# |
| 0.124 | 0.183 | 0.204 | 0.095 | 0.154 | 0.179 | 0.226 | 0.193 | 0.105 | 0.203 |
Itw part testing data
| 1# | 2# | 3# | 4# |
| 0.09 | 0.12 | 0.47 | 0.12 |
The simulation hood-like state of installation wheel hub carries out destroying torsional test data as follows (unit nm):
The part testing data of the present embodiment
| 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# | 9# | 10# |
| 7.0 | 6.0 | 6.5 | 7.0 | 8.0 | 7.5 | 6.5 | 6.5 | 7.0 | 7.0 |
Itw part testing data
| 1# | 2# |
| 6.5 | 5.5 |
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Although more employing pedestal 1, self threading pin 2, molding projection 3, internal coiling 31, punching 32, annular protrusion herein
33rd, the first otch 34, circumferentially positioned mechanism 4, location division 41, excessively nail 42, angle 43, damping 5, damping portion 51, shape
The terms such as Varied clearance 52, cantilever shell fragment 53, arc-shaped concave 53a, decompression cell body 54, molding gas pressure relief slot 55, but be not precluded from using
The probability of other terms.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；Them
It is all contrary with spirit of the present invention for being construed to any additional restriction.
Claims (2)
1. a kind of molding projection processing technique of self threading pin nut seat is it is characterised in that this processing technique comprises the steps:
A, rush aperture: by small hole punching mold tool in upper one aperture of punching of pedestal (1)；
B, molding: processing and forming is carried out by mould to the aperture on pedestal (1), after processing and forming processing, passes through sizing die
Tool carries out shaping at least one times, i.e. have the first otch (34) connecting with aperture on pedestal (1), in the upper molding of pedestal (1)
There is outer end to protrude from the one side of pedestal (1) and inner side is formed with molding projection (3) of internal coiling (31), and in internal coiling (31)
Inner side edge is reserved with finish-machining allowance；
C, fine are cut: carry out fine cut by die cutting die to the finish-machining allowance being reserved in internal coiling (31) inner side edge, that is, tool is obtained
There is molding projection (3) of the internal coiling (31) that can threaded with the external screw thread of self threading pin.
2. the molding projection processing technique of self threading pin nut seat according to claim 1 is it is characterised in that in above-mentioned b
In step, described pedestal (1) is had some the second otch (35) being connected with aperture, and described the first otch (34) and
Second otch (35) radially distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342589.8A CN104930037B (en) | 2015-06-18 | 2015-06-18 | Self-tapping nail nut seat, detachable assembly applying same and machining process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510342589.8A CN104930037B (en) | 2015-06-18 | 2015-06-18 | Self-tapping nail nut seat, detachable assembly applying same and machining process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930037A CN104930037A (en) | 2015-09-23 |
| CN104930037B true CN104930037B (en) | 2017-01-18 |
Family
ID=54117372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510342589.8A Active CN104930037B (en) | 2015-06-18 | 2015-06-18 | Self-tapping nail nut seat, detachable assembly applying same and machining process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104930037B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422569A (en) * | 2015-12-29 | 2016-03-23 | 博耐尔汽车电气系统有限公司 | Fastening mechanism for connection of parts |
| CN105508375A (en) * | 2015-12-29 | 2016-04-20 | 博耐尔汽车电气系统有限公司 | Fixing method for connecting and fixing mechanisms for parts |
| CN105422568A (en) * | 2015-12-29 | 2016-03-23 | 博耐尔汽车电气系统有限公司 | Connection-fixation mechanism for parts |
| CN105387054A (en) * | 2015-12-29 | 2016-03-09 | 博耐尔汽车电气系统有限公司 | Fastening structure for connecting parts through fast-assembly nut |
| CN105387052A (en) * | 2015-12-29 | 2016-03-09 | 博耐尔汽车电气系统有限公司 | Fast-assembly nut |
| CN108533594B (en) * | 2018-03-08 | 2020-06-30 | 浙江吉达金属有限公司 | Anti-drop screw assembly and manufacturing process thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771113A (en) * | 1953-08-18 | 1956-11-20 | Tinnerman Products Inc | Sheet metal lock nut with spring locking arm |
| US3308708A (en) * | 1964-08-14 | 1967-03-14 | Tinnerman Products Inc | Fastening device |
| DE3536473A1 (en) * | 1985-10-12 | 1987-04-16 | Raymond A Fa | SELF-LOCKING CLAMP TYPE NUT |
| FR2899658B1 (en) * | 2006-04-10 | 2010-08-27 | Raymond A & Cie | CLAMPING DEVICE |
| DE202007006097U1 (en) * | 2007-04-27 | 2008-09-04 | Lisi Automotive Rapid | Device for fastening components to one another with the aid of a clamp which can be pushed onto a component |
| CN203170810U (en) * | 2013-04-03 | 2013-09-04 | 舟山市上舟柴油机厂 | Punching machine |
| CN204692281U (en) * | 2015-06-18 | 2015-10-07 | 嘉兴汉工汽车紧固件有限公司 | Self threading pin nut seat and the detachable member applying it |
-
2015
- 2015-06-18 CN CN201510342589.8A patent/CN104930037B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104930037A (en) | 2015-09-23 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Self-tapping nail nut seat, detachable assembly applying same and machining process Effective date of registration: 20190925 Granted publication date: 20170118 Pledgee: Zhejiang Jiashan rural commercial bank Limited by Share Ltd. science and technology sub branch Pledgor: JIAXING HANGONG AUTOMOBILE FASTENER CO.,LTD. Registration number: Y2019330000085 |
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Date of cancellation: 20210811 Granted publication date: 20170118 Pledgee: Zhejiang Jiashan rural commercial bank Limited by Share Ltd. science and technology sub branch Pledgor: JIAXING HANGONG AUTOMOBILE FASTENER Co.,Ltd. Registration number: Y2019330000085 |
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Denomination of invention: Self tapping screw nut seat and its detachable components and processing technology Effective date of registration: 20230908 Granted publication date: 20170118 Pledgee: Zhejiang Jiashan rural commercial bank Limited by Share Ltd. science and technology sub branch Pledgor: JIAXING HANGONG AUTOMOBILE FASTENER CO.,LTD. Registration number: Y2023330002002 |
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