CN103573778A - Novel fastener - Google Patents
Novel fastener Download PDFInfo
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- CN103573778A CN103573778A CN201210260438.4A CN201210260438A CN103573778A CN 103573778 A CN103573778 A CN 103573778A CN 201210260438 A CN201210260438 A CN 201210260438A CN 103573778 A CN103573778 A CN 103573778A
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Abstract
The invention provides a novel fastener in order to solve the problem that thread stripping is easy to occur in rivet nuts to result in connection failure. The novel fastener comprises a base body and a built-in part; the base body comprises a deformation portion and an assembly portion; the inside of the deformation portion is provided with an unthreaded hole communicated with the outside; the inside of the assembly portion is provided with an internal thread hole, and the internal thread hole is communicated with the unthreaded hole of the deformation portion; the built-in part comprises a hollow sleeve, the inside wall of the hollow sleeve is provided with internal threads, and the outside wall of the hollow pipe is provided with external threads; the built-in part is assembled inside the internal thread hole of the assembly portion through the external threads of the built-in part. By means of the novel fastener structure of the novel fastener, the assembly is convenient and the costs are low. The screw pitch and thread form deviation between a screw or bolt and the novel fastener can be eliminated, screw stripping, mismatched threads and the like can be avoided, release is not easy to occur, loads are distributed evenly, and accordingly the bearing capacity and the fatigue resistance of threaded connection can be improved. Apart from good maintenance convenience, abrasion resistance, corrosion resistance, vibration resistance and looseness resistance of the fastener can also be improved.
Description
Technical field
The fastening field that the present invention relates to thin plate, especially refers to the fastener areas for fastening metal thin plate.
Background technique
Insert Nut is for the fastening field of the process industries such as all kinds of sheet metals, tubing.Use widely at present the fit at the electromechanics such as automobile, aviation, railway, refrigeration, elevator, switch, instrument, furniture, decoration and light industrial goods.Assembling flexibility, riveted joint efficiency, ease of use and outfit equipment cost aspect are all better than welded nut.
Insert Nut and be mated the bolt of use or usually fastening for sheetmetal of screw, although compare traditional fastening pieces such as welded nut, there is more excellent properties, but still there is defect, such as having determined that due to riveting process method traditional Insert Nut strength of materials is not high, and improve the existing Insert Nut strength of materials and become very difficult.And it exists the situation of the sliding tooth of screw thread, produce phenomenons such as connecting inefficacy and cannot make up and reprocess.
Summary of the invention
Easily there is the sliding tooth of screw thread for solving above-mentioned Insert Nut in the present invention, produces connection and lost efficacy and cannot make up the problem of reprocessing, and a kind of novel fastener is provided.
Novel fastener provided by the invention, comprises a matrix and a built-in part; Matrix comprises deformations and department of assembly; In deformations, be provided with the unthreaded hole communicating with the external world; In department of assembly, be provided with interior threaded hole, described interior threaded hole communicates with the unthreaded hole in described deformations; Built-in part comprises a hollow bushing, and hollow bushing madial wall is provided with internal thread, and outer side wall is provided with outside thread; Built-in part is assemblied in the interior threaded hole in described department of assembly by its outside thread.
Preferably, deformations top is provided with convex edge.
Preferably, convex edge is tack, countersunk head or countersunk raised head.
Preferably, matrix profile is hexagonal.
Interior threaded hole on matrix is through hole or blind hole.
Preferably, the outer surface of matrix is provided with annular knurl.
Adopt fastener constructions of the present invention, easy to assembly, cost is low.Can eliminate pitch and tooth form deviation between screw or bolt and screw, avoid stripped thread, grind one's teeth etc., and be difficult for threading off, load is uniformly distributed, thereby improve bearing capacity and the fatigue resistance being threaded.Wear resistance and the corrosion resistance of fastening piece have been improved; Antidetonation, anti-loose, its locking property is better than other locking devices.Particularly there is good servicing ease, when occurring that novel fastener internal thread is damaged and need to change, can by changing built-in part, realize easily at the scene the recovery of novel fastener function, do not change original bind mode, solved the difficult problem that always cannot change since Insert Nut comes out.
Accompanying drawing explanation
Fig. 1 is that in the specific embodiment of the invention, novel fastener is partly cutd open schematic diagram;
Fig. 2 is built-in part schematic diagram in the specific embodiment of the invention;
Fig. 3 is that in the specific embodiment of the invention, embodiment 1 novel fastener master looks schematic diagram;
Fig. 4 is fastening piece elevational schematic view in Fig. 3;
Fig. 5 is that in the specific embodiment of the invention, embodiment 1 built-in part master looks schematic diagram;
Fig. 6 is built-in part schematic top plan view in Fig. 5;
Fig. 7 is embodiment's 2 matrix schematic diagram in the specific embodiment of the invention;
Fig. 8 is that in Fig. 7, schematic diagram is looked on the matrix right side;
Fig. 9 is embodiment's 2 built-in part schematic diagram in the specific embodiment of the invention;
Figure 10 is that in Fig. 9, schematic diagram is looked on a built-in part left side;
Figure 11 is sheetmetal mounting hole schematic diagram;
Figure 12 is that novel fastener is fit into schematic diagram after sheetmetal.
Embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described in detail.
Inventor finds in automobile R&D process, the Insert Nut matching with bolt or screw on automobile metal thin plate screws in particularly at dynamic load Environmental Conditions (in automobile running) at bolt, be easy to occur the situation of the sliding tooth of Insert Nut screw thread, produce and connect failure phenomenon, when this happens, need reparation but because changing Insert Nut, to drop.What adopt due to this nut is the mounting type of riveted joint, is therefore non-detachable.If dismantle, have to take the mode of destroying to be carried out, therefore change that Insert Nut often becomes very difficult and cost is very large.For this reason, inventor is through a large amount of simulation analysis and experimental verification, finally found a kind of improved novel fastener, adopt this kind of fastening piece can in dynamic load Environmental Conditions, still keep excellent performance, even and there is the situation that must repair, repair process is also very convenient, simple, economical.In this part, will describe technical solution of the present invention in detail.
Following Fig. 1, Fig. 2, novel fastener 100 provided by the invention, comprises a matrix 1 and a built-in part 2; Matrix 1 comprises deformations 11Ji department of assembly 12; In deformations 11, be provided with the unthreaded hole 110 communicating with the external world; In department of assembly 12, be provided with interior threaded hole 120, described interior threaded hole 120 communicates with the unthreaded hole 110 in described deformations 11; Built-in part 2 is a hollow bushing 20, and hollow bushing madial wall is provided with internal thread 21, and outer side wall is provided with outside thread 22; Built-in part 2 is assemblied in the interior threaded hole 120 in described department of assembly 12 by its outside thread 22.
Due to the built-in part 2 that has been threaded in the interior department of assembly 12 of matrix 1, owing to having adopted built-in part 2, can eliminate pitch and tooth form deviation between screw or bolt and interior threaded hole 120, avoid stripped thread, grind one's teeth etc., and be difficult for threading off, load is uniformly distributed, thereby improves bearing capacity and the fatigue resistance being threaded.Wear resistance and the corrosion resistance of fastening piece have been improved; Antidetonation, anti-loose, its locking property is better than other locking devices.
The total length of deformations 11Ji department of assembly 12 is 16.5-34.5mm, and the length of described deformations 11 is 12.5-21mm, and the length of department of assembly 12 is 10-12mm.
Convex edge 13 is tack, countersunk head or countersunk raised head etc.Can effectively prevent between built-in part and matrix, rotating and moving axially when bolt screws in Insert Nut.The top surface edge chamfering of convex edge 13 or rounding 13a.Matrix 1 profile is hexagonal, can prevent that 3 of novel fastener 100 and sheetmetals from rotating mutually.Interior threaded hole 120 on matrix 1 is through hole or blind hole.The outside of matrix 1 can be formed with annular knurl as required.
The material of matrix 1 can be selected steel (Zincing passivation) etc.
The material of built-in part 2 can be selected stainless steel.
As shown in Fig. 2, Fig. 5, Fig. 9, preferably, on built-in part 2, be provided with mounting groove 2a, so that by interior threaded hole 120 on built-in part 2 matrixes 1, such as established mounting groove 2a in Fig. 5, Fig. 9 on built-in part.
By in advance, by interior threaded hole 120 on built-in part 2 screw-in matrixes 1, form fastening piece 100 of the present invention.The method that packs built-in part 2 into matrix 1 can adopt and well known to a person skilled in the art installation method.Can adopt installation method manually or automatically, take is manually example, and the instrument that employing can coordinate with mounting groove on built-in part is rotated into built-in part on matrix in interior threaded hole.Attention can't be installed and apply larger axial force at built-in part 2, in case " disorderly button ".In order further to improve the firm degree of connection of built-in part 2 and matrix 1, can on the outside thread of built-in part 2, scribble locking glue.
Using method: as shown in figure 11, have the novel fastener mounting hole 30 of hexagonal in sheetmetal 3 upper punches, the method for Installation of New Type fastening piece can adopt manual or electronic mode to realize.To adopt the electronic mode of riveting gun, give an example, first this novel fastener 100 is contained on riveting gun, then, by novel fastener 100 snapping in the novel fastener mounting hole 30 on sheetmetal 3 tightly, then starts riveting gun, make riveting gun main shaft return axle, realize the installation of novel fastener.Install the schematic diagram of novel fastener 100 as shown in figure 12.
Restorative procedure: if find that there is the problems such as slide nut tooth, need to replace the built-in part in novel fastener, need to adopt and can coordinate the extracting tool (as special screwdriver) that mounting groove is used to take out built-in part, adopt preceding method that new built-in part is installed, the built-in part of taking-up can not re-use again.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, this example has provided a kind of through hole tack hexagonal novel fastener.The specification of novel fastener is M4, M5, M6 etc.; In figure, each meaning of parameters is: D is the large footpath of built-in part screw, and D can select M4, M5, M6 etc.; D is the large footpath of built-in part outside thread, can select M8, M10 etc.; d
k1for built-in part countersunk head diameter, its scope is 10.89-14.30mm; T is built-in part straight groove (being mounting groove) groove depth, and its scope is 2.0-3.0mm; A is built-in part tool withdrawal groove size, its overall dimensions a
maxfor 2.5-3.0mm; K is the built-in part countersunk head degree of depth, the overall dimensions K of its degree of depth
maxfor 4.65-5.0mm; N is built-in part straight groove (being mounting groove) groove width, and its scope is 1.2-1.6mm; l
0for built-in part length, about 21-22mm; S is matrix hexagonal opposite side size, the about 12.89-16.00mm of its scope; D
1for matrix pipe shaft aperture, be about 11.8-15.1mm; d
kfor matrix tack diameter, be about 19-24mm; H is matrix tack thickness, is about 1.88-2.32mm; M is matrix screw length, its minimum zone m
minfor 16-20mm; C is base end chamfering, and size is 2.0-2.2mm; L is matrix length, is about 29.5-24.5mm; D
bodyfor the large footpath of matrix screw, can select M8, M10 etc.
While using the present embodiment novel fastener, as shown in Figure 11,12, as shown in figure 11, in sheetmetal 3 upper punches, there is the novel fastener mounting hole 30 of hexagonal, then novel fastener 100 is fit in novel fastener mounting hole 30, wherein, S
1for novel fastener mounting hole opposite side size, R is novel fastener mounting hole chamfer radius, and b is sheet metal thickness, l
1for novel fastener riveted joint back nut height.S1 is 13-16mm; R is 0.4-0.5mm, and b is 1.0-3.5mm; l
1for 23.0-40.0mm.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10, this example has provided a kind of blind hole tack hexagonal novel fastener, and inventor has designed the blind hole tack hexagonal novel fastener of some specifications, as M4, M5, M6 etc.
Wherein, D can select M4, M5, M6 etc.; D can select M8, M10 etc.; T is built-in part straight groove (being mounting groove) groove depth, and its scope is 2.0-3.0mm; N is built-in part straight groove (being mounting groove) groove width, and its scope is 1.2-1.6mm; l
1for built-in part length, about 10-12mm; S is matrix hexagonal opposite side size, the about 12.89-13.00mm of its scope; D
1for matrix pipe shaft aperture, be about 9.6-11.8mm; d
kfor matrix tack diameter, be about 19-24mm; H is matrix tack thickness, is about 1.88-2.32mm; M is matrix screw length, its minimum zone m
minfor 16-19mm; C is base end chamfering, and size is 1.7-2.0mm; L is matrix length, is about 29.5-24.5mm; L in figure
0for built-in part length, its scope 21-22mm; D
this bodyfor the large footpath of matrix screw, can select M8, M10 etc.
While using the present embodiment novel fastener, as shown in Figure 11,12, as shown in figure 11, in sheetmetal 3 upper punches, there is the novel fastener mounting hole 30 of hexagonal, then novel fastener 100 is fit in novel fastener mounting hole 30.
Wherein S1 is 11-13mm; R is set to 0.4mm, and b is 0.7-3.5mm; l
1for 8.0-16.5mm.
Above-mentioned two embodiments have just enumerated the novel fastener of some specifications parameters, and numerical value is not wherein in order to limit the present invention.The parameter that those skilled in the art can need according to explanation according to the present invention design completely.
The present invention is not limited to above-mentioned embodiment, and the technological scheme it will be apparent to those skilled in the art that, in the situation that not departing from the spirit or scope of the present invention, is made various changes and/or modification to the present invention, still belongs to the scope of protection of the invention.
Claims (10)
1. a novel fastener, is characterized in that: comprise a matrix and a built-in part;
Described matrix comprises deformations and department of assembly;
In described deformations, be provided with the unthreaded hole communicating with the external world; In described department of assembly, be provided with interior threaded hole, described interior threaded hole communicates with the unthreaded hole in described deformations;
Described built-in part comprises a hollow bushing, and described hollow bushing madial wall is provided with internal thread, and outer side wall is provided with outside thread;
Described built-in part is assemblied in the interior threaded hole in described department of assembly by its outside thread.
2. novel fastener according to claim 1, is characterized in that: described deformations top is provided with convex edge structure.
3. novel fastener according to claim 2, is characterized in that: top surface edge chamfering or the rounding of described convex edge.
4. novel fastener according to claim 2, is characterized in that: described convex edge is tack, countersunk head or countersunk raised head.
5. novel fastener according to claim 1, is characterized in that: described matrix profile is hexagonal.
6. novel fastener according to claim 1, is characterized in that: the interior threaded hole on described matrix is through hole or blind hole.
7. novel fastener according to claim 1, is characterized in that: the outer surface of described matrix is provided with annular knurl.
8. novel fastener according to claim 1, is characterized in that: described built-in part is provided with mounting groove.
9. novel fastener according to claim 1, is characterized in that: on the outside thread of built-in part, scribble locking glue.
10. novel fastener according to claim 1, is characterized in that: the length of described deformations is 12.5-21mm, and the length of department of assembly is 10-12mm, and the thickness of convex edge is 1.18-2.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260438.4A CN103573778A (en) | 2012-07-25 | 2012-07-25 | Novel fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210260438.4A CN103573778A (en) | 2012-07-25 | 2012-07-25 | Novel fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573778A true CN103573778A (en) | 2014-02-12 |
Family
ID=50046292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210260438.4A Pending CN103573778A (en) | 2012-07-25 | 2012-07-25 | Novel fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302407A (en) * | 2018-11-13 | 2021-08-24 | 宾工程工厂公司 | Fastener for sheet material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1073472A (en) * | 1967-06-21 | 1967-06-28 | Proctor Ronald | Improvements relating to blind nuts |
| EP0198275A1 (en) * | 1985-04-16 | 1986-10-22 | Ludwig Kraemer | Rivet nut |
| GB2240603A (en) * | 1990-01-31 | 1991-08-07 | Bollhoff & Co | Blind rivet nut |
| CN2184111Y (en) * | 1993-04-23 | 1994-11-30 | 湖北祥泽铆钉制造有限公司 | Low carbon steel riveting nut fastener |
| EP1384905A1 (en) * | 2002-07-22 | 2004-01-28 | Bollhoff Otalu S.A. | Clinch nut with self-restraining threaded insert |
| CN101135331A (en) * | 2006-08-14 | 2008-03-05 | 伯尔霍夫连接技术有限公司 | Fastening device with tolerance compensation |
| CN202811767U (en) * | 2012-07-25 | 2013-03-20 | 广州汽车集团股份有限公司 | Novel fastener |
-
2012
- 2012-07-25 CN CN201210260438.4A patent/CN103573778A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1073472A (en) * | 1967-06-21 | 1967-06-28 | Proctor Ronald | Improvements relating to blind nuts |
| EP0198275A1 (en) * | 1985-04-16 | 1986-10-22 | Ludwig Kraemer | Rivet nut |
| GB2240603A (en) * | 1990-01-31 | 1991-08-07 | Bollhoff & Co | Blind rivet nut |
| CN2184111Y (en) * | 1993-04-23 | 1994-11-30 | 湖北祥泽铆钉制造有限公司 | Low carbon steel riveting nut fastener |
| EP1384905A1 (en) * | 2002-07-22 | 2004-01-28 | Bollhoff Otalu S.A. | Clinch nut with self-restraining threaded insert |
| CN101135331A (en) * | 2006-08-14 | 2008-03-05 | 伯尔霍夫连接技术有限公司 | Fastening device with tolerance compensation |
| CN202811767U (en) * | 2012-07-25 | 2013-03-20 | 广州汽车集团股份有限公司 | Novel fastener |
Non-Patent Citations (3)
| Title |
|---|
| 国家标准: "《GB/T 17880.1-1999》", 11 October 1999 * |
| 机械设计手册编委会: "《机械设计手册》", 31 August 2004 * |
| 王维新: "《钳工》", 31 May 2005, 《化学工业出版社》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302407A (en) * | 2018-11-13 | 2021-08-24 | 宾工程工厂公司 | Fastener for sheet material |
| CN113302407B (en) * | 2018-11-13 | 2023-04-11 | 宾工程工厂公司 | Fastener for sheet material |
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| PB01 | Publication | ||
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Application publication date: 20140212 |