CN104791354B - A kind of right angle self-fastening nut and preparation method thereof - Google Patents
A kind of right angle self-fastening nut and preparation method thereof Download PDFInfo
- Publication number
- CN104791354B CN104791354B CN201510172310.6A CN201510172310A CN104791354B CN 104791354 B CN104791354 B CN 104791354B CN 201510172310 A CN201510172310 A CN 201510172310A CN 104791354 B CN104791354 B CN 104791354B
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- Prior art keywords
- rectangle
- right angle
- outer ring
- string
- fastening nut
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- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000004080 punching Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000012943 hotmelt Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000005097 cold rolling Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010309 melting process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The present invention provides a kind of right angle self-fastening nut, top is outer ring portion, it is connected with the panel section of bottom, nut portion is embedded in outer ring portion, outer ring portion material is plastics or rubber, panel section is metal with nut portion material, corresponding preparation method is also provided, specially panel section is made using punching press or welding procedure, nut portion is made using machining, then outer ring portion is molded with Shooting Technique and be connected while shaping with panel section, nut portion is embedded in outer ring portion with cold pressing or hot melt.This right angle self-fastening nut and corresponding preparation method can realize the production in enormous quantities of product, the standard component of specification can be specified to each several part, preparing component and combine the technique of component can standardized work, reduce the waste of material, and can be combined at any time for the component of various pieces, therefore this preparation method reduces production cost, improves production efficiency.
Description
Technical field
Field, more particularly to a kind of right angle self-fastening nut and its making side are manufactured the present invention relates to a kind of machine components
Method.
Background technology
Right angle self-fastening nut is widely used in the PCB in the installation of rectangular area, the corner of such as computer housing, positioning cabinet
Plate (Printed Circuit Board, printed circuit board (PCB)), compartment hangs clothing and buckles etc. position.Replaced and passed using self-fastening technology
The welding of system, saves material, reduces installation steps and is fastenedly connected there is provided more reliable.
The technique of manufacture right angle self-fastening nut has two kinds in the prior art, and one kind is PM technique, another
It is the cold rolling different in nature bar technology of cold-drawn, is then surface-treated.
Powder metallurgy is to produce metal dust or made with metal dust (or mixture of metal dust and non-metal powder)
For raw material, by shaping and sintering, the technology of manufacture metal material, composite and all kinds product.Powder smelting
Technology for gold possesses notable energy-conservation, material saving, excellent performance, Product Precision height and the series of advantages such as stability is good, is very suitable for
Produce in enormous quantities.But right angle self-fastening nut is prepared, it can make if PM technique is used in the case of without batch
Single products cost is higher, and requires very high to sintering process, and the right angle self-fastening spiral shell that often prepared by existing powder metallurgy
Female product surface is not fine and closely woven, and the defect that surface is produced after plating is clearly.
Cold-drawn refers to that material carries out drawing under conditions of being in normal temperature.It is cold rolling to refer to that with coils of hot-rolled steel be raw material, through pickling
Cold continuous rolling is carried out after scale removal, its finished product is to roll hard volume.Because flow harden caused by continuous cold deformation makes to roll what is rolled up firmly
Intensity, hardness rise, and tough modeling index declines, therefore punching performance will deteriorate, so the cold rolling part for being only used for simple deformation.
And when preparing right angle self-fastening nut, use cold-drawn cold-rolling process can be so that the buying of raw material and manufacturing process complexity are carried
Height, so as to add cost.Part of the cold-drawn cold-rolling process due to being only suitable for simple deformation, can not well forming tank or
The details areas such as hole, therefore the percent defective produced is higher, moreover, the die life extreme difference cold rolling for cold-drawn, to sum up institute
State, use cold-drawn cold-rolling process that production cost is remained high.
When disadvantage mentioned above causes lifting right angle self-fastening nut yield, huge cost input can be produced, it is therefore necessary to
A kind of convenient novel right self-fastening nut made of invention, and corresponding relatively simple, convenient preparation method, reduction should
The production cost of product, improves yield.
The content of the invention
, will the invention provides a kind of right angle self-fastening nut and corresponding preparation method in order to solve the above problems
Product is divided into three parts, makes various pieces using different materials, then three parts are spliced or are assembled, from
And the production cost of the product is reduced, improve yield.
In order to achieve the above object, the present invention provides a kind of right angle self-fastening nut, the right angle self-fastening nut top
For outer ring portion, it is connected with the panel section of bottom, nut portion, the outer ring portion material is embedded in the outer ring portion
Expect for plastics or rubber, the panel section is metal with the nut portion material.
Preferably, the outer ring portion is divided into ring part and trapezoidal portions, the annular portion according to shape of cross section
Point there is cylindrical and inner circle, it is described it is cylindrical be followed successively by first string and the second string from top to bottom in the horizontal direction provided with two strings,
The first string and the second string are on the central shaft axial symmetry in ring part horizontal direction, and the first string chord length is less than cylindrical
Diameter is simultaneously more than interior circular diameter, and the ring part is shaped as the cylindrical first string above section and second string
The shape that following part is formed after removing.
Preferably, the shape of cross section of the trapezoidal portions be isosceles trapezoid in get rid of two squares being stitched together
The shape formed after shape, described two rectangles being stitched together are respectively the first rectangle and the second rectangle, institute from top to bottom
The straight line where the long side of the second rectangle side is gone to the bottom with the isosceles trapezoid is stated to overlap, the long side of the second rectangle opposite side and
The long side in side of first rectangle is on same straight line, and the length on the long side of the second rectangle is long less than first rectangle
Side.
Preferably, the outer ring portion be plane in the isosceles trapezoid where bottom with where second string
Plane is combined to form.
Preferably, the described cylindrical and inner circle is concentric circles, by the straight of two base angles formation of the isosceles trapezoid
Angle triangle is removed, and the right angle side length of the right angled triangle is less than the height of the isosceles trapezoid.
Preferably, the panel section shape of cross section is spliced by the rectangle of four long side all horizontal positioneds, from
Up to lower respectively the 3rd rectangle, the 4th rectangle, the 5th rectangle and the 6th rectangle, the 3rd rectangle and first rectangle
Identical, the 4th rectangle is identical with second rectangle, and the long edge lengths of the 5th rectangle are equal to or more than the described 3rd
Rectangle, the length on the long side of the 6th rectangle is more than remaining all rectangle and more than isosceles trapezoid bottom length.
Preferably, the nut portion be shaped as two circular concentrics into annulus, described two concentric circles from outside to
In be respectively the first circle and the second circle, first circle with it is described cylindrical identical, second it is round it is all on be dispersed with screw thread, it is described
First circle is embedded in described cylindrical interior.
Preferably, all drift angles exposed to outside are all fillet.
The present invention also provides a kind of preparation method of above-mentioned right angle self-fastening nut, and the outer ring portion manufacture craft is
Injection, the nut portion manufacture craft is machining, and the panel section manufacture craft is punching press and welding, and by three
Individual part connection.
Preferably, the nut portion is embedded in the outer ring portion by cold pressing or hot melting process, the outer shroud
Part is connected by Shooting Technique with the panel section.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention by right angle self-fastening nut be divided into outer ring portion,
Panel section and nut portion, outer ring portion material are plastics or rubber, and panel section is gold with the nut portion material
Category, so makes outer ring portion using Shooting Technique, makes panel section using punching press or welding procedure, uses machining
Nut portion is made, then outer ring portion is connected with panel section with Shooting Technique, with cold pressing or hot melt by nut portions
Divide in embedded outer ring portion.The right angle self-fastening nut and corresponding preparation method that this different materials are spliced can be real
The production in enormous quantities of existing right angle self-fastening nut product, and can various pieces be specified with the standard component of specification, and prepare son
The technique of part and combination component can reduce the waste of material with standardized work, and can for the component of various pieces
To combine at any time, therefore this preparation method reduces production cost, improves production efficiency.
Brief description of the drawings
The cross-sectional view for the right angle self-fastening nut that Fig. 1 provides for the present invention；
The upward view for the right angle self-fastening nut that Fig. 2 provides for the present invention.
In figure：1- outer ring portions, 11- ring parts, 12- trapezoidal portions, 111- are cylindrical, 112- inner circles, 113- first strings,
121- isosceles trapezoids, the rectangles of 122- first, the rectangles of 123- second, 2- nut portions, 21- first justify, 22- second justifies, 23- spiral shells
Line, 3- panel sections, the rectangles of 31- the 3rd, the rectangles of 32- the 4th, the rectangles of 33- the 5th, the rectangles of 34- the 6th.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Fig. 1 is refer to, the present invention provides a kind of right angle self-fastening nut, and the right angle self-fastening nut top is outer portion
Divide 1, be connected with the panel section 3 of bottom, nut portion 2, the material of outer ring portion 1 are embedded in the outer ring portion 1
For plastics or rubber, the panel section 3 is metal with the material of nut portion 2.
1 point of outer ring portion is ring part 11 and trapezoidal portions 12, and the ring part 11 has cylindrical 111 and inner circle
112, usually, cylindrical 111 be concentric circles with inner circle 112, and described cylindrical 111 in the horizontal direction provided with two strings, from up to
Under be followed successively by the string (not shown) of first string 113 and second, the string of first string 113 and second is on the horizontal direction of ring part 11
On central shaft axial symmetry, the chord length of first string 113 be less than cylindrical 111 diameter and more than inner circle 112 diameter, will be cylindrical
111 above section of first string 113 below second string with partly removing.
The shape of cross section of trapezoidal portions 12 is gets rid of institute's shape after two rectangles being stitched together in isosceles trapezoid 121
Into shape, two rectangles for being stitched together are respectively the first rectangle 122 and the second rectangle 123, the second rectangle from top to bottom
Straight line where the long side of 123 sides and isosceles trapezoid 121 are gone to the bottom is overlapped, the long side of the opposite side of the second rectangle 123 with it is described
The long side in side of first rectangle 122 is on same straight line, that is to say, that since the plane where the bottom of isosceles trapezoid 121,
It is bottom surface with the second rectangle 123, highly equal to the cuboid of the thickness of panel section 3 first to cut out one, and one is then cut out again
It is individual be bottom surface with the first rectangle 122, thickness be equal to the thickness of panel section 3 cuboid, the long side of second rectangle 123
Length is less than the long side of first rectangle 122.
The isosceles trapezoid 121 has two base angles, is taken on waist a bit, makees the straight line perpendicular to bottom downwards, with base angle
Right angled triangle is formd, the one of acute angle of right angled triangle is the base angle of the isosceles trapezoid 121, the right angle trigonometry
The length of any one right-angle side of shape is smaller than the height of isosceles trapezoid 121, and the two right angled triangles are removed, then terraced
The shape of cross section of shape part 12 be isosceles trapezoid 121 cut out since bottom the first rectangle 122 and the second rectangle 123,
The shape formed after the right angled triangle comprising base angle is got rid of at two base angles.
By the plain splice where bottom in the plane where the second string described in outer ring portion 1 and the isosceles trapezoid 121
The outer ring portion 1 is formd together, the angle that junction is formed is made as fillet.
The shape of cross section of panel section 3 is spliced by the rectangle of four long side all horizontal positioneds, is distinguished from top to bottom
For the 3rd rectangle 31, the 4th rectangle 32, the 5th rectangle 33 and the 6th rectangle 34, the 3rd rectangle 31 and first rectangle
122 is identical, will the place of the 3rd rectangle 31 be partially submerged into first rectangle 122, the 4th rectangle 32 and institute
State that the second rectangle 123 is identical, will be partially submerged into second rectangle 123 where the 4th rectangle 32, the described 5th
The long edge lengths of rectangle 33 are equal to or more than the 3rd rectangle 31, refer to Fig. 2, the length on the long side of the 6th rectangle 34 is big
In remaining all rectangle and more than the isosceles trapezoid 121 bottom length, because the part where the 6th rectangle 34 is
The substrate of whole right angle self-fastening nut, under same thickness, the area of the bottom surface of panel section 3 is maximum, so add with
The area of other workpiece contacts, also can preferably support whole right angle self-fastening nut.
Between 3rd rectangle 31, the 4th rectangle 32, the 5th rectangle 33 and the 6th rectangle 34, two adjacent rectangles are all
With the long side on same straight line, the straight line where the long side in the side of the 3rd rectangle 31 and the 4th rectangle 32 1 as described
Straight line where the long side in side is overlapped.
It is preferred that drift angle all on the cuboid at the place of the 6th rectangle 34 is all fillet, the 5th rectangle 33 and institute
The angle for stating the 6th rectangle 34 connection place formation is also fillet.
The outer ring portion 1 is by where the 3rd rectangle 31 and the 4th rectangle 32 with the junction of panel section 3
Be partially submerged into the isosceles trapezoid 121, that is, embedded the first rectangle of shape of cross section 122 and the second rectangle 123 is recessed
Lack place.
The nut portion 2 be shaped as two circular concentrics into annulus, described two concentric circles are from being respectively outside to inside
First circle 21 and the second circle 22, the first circle 21 are identical with cylindrical 111, i.e., the first circle 21 is embedded in cylindrical 111, justify in the second circle 22
Screw thread 23 is dispersed with week, the external diameter of screw thread 23 is equal to the diameter of the second circle 22.
It is preferred that all drift angles exposed to outside are all fillet.
With described cylindrical 111 vertical direction a diameter of axle, the shape of cross section of whole right angle self-fastening nut on
The axle axial symmetry.
The present invention also provides a kind of preparation method of above-mentioned right angle self-fastening nut, concretely comprises the following steps：
Step one：Because the nut portion 2 and the material of panel section 3 are all metal, so nut portion 2 makes
Technique is machining, and the manufacture craft of panel section 3 is punching press and welding；
Step 2：One mould for being shaped as the shape of outer ring portion 1 is provided, and according to the shape and egative film shown in Fig. 1
Part 3 is communicated, i.e., the part where described 3rd rectangle 31 and the 4th rectangle 32 is embedded in first rectangle 122 and second respectively
At notch where rectangle 123, the shaping of outer ring portion 1 is completed by being molded, while also completing outer ring portion 1 and egative film portion
Points 3 connection.
Step 3：Nut portion 2 is embedded in cylindrical 111 in outer ring portion 1 by cold pressing or hot melting process.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention
And scope.If these modifications and variations of the present invention belong within the scope of the claims in the present invention and its equivalent technologies, then
The present invention is also intended to including these changes and modification.
Claims (5)
1. a kind of right angle self-fastening nut, it is characterised in that the right angle self-fastening nut top is outer ring portion, with bottom
Panel section is connected, and nut portion is embedded in the outer ring portion, and the outer ring portion material is plastics or rubber, institute
It is metal that panel section, which is stated, with the nut portion material, and the outer ring portion is divided into ring part and ladder according to shape of cross section
Shape part, the ring part has a cylindrical and inner circle, described cylindrical in the horizontal direction provided with two strings, from top to bottom successively
For first string and the second string, the first string and the second string are described on the central shaft axial symmetry in ring part horizontal direction
First string chord length is less than outside diameter and more than interior circular diameter, the ring part be shaped as by the cylindrical first string with
Upper part and the shape formed after partly being removed below second string, the shape of cross section of the trapezoidal portions is isosceles trapezoid
In get rid of the shape formed after two rectangles being stitched together, described two rectangles being stitched together divide from top to bottom
Not Wei the first rectangle and the second rectangle, the long side of the second rectangle side is gone to the bottom in same straight line with the isosceles trapezoid
On, the second rectangle opposite side it is long when long with the side of first rectangle on same straight line, second rectangle
It is long while length be less than first rectangle it is long while；The panel section shape of cross section by four long sides all horizontal positioneds square
Shape is spliced, from top to bottom respectively the 3rd rectangle, the 4th rectangle, the 5th rectangle and the 6th rectangle, the 3rd rectangle
Identical with first rectangle, the 4th rectangle is identical with second rectangle, the long edge lengths of the 5th rectangle be equal to or
Person is more than the 3rd rectangle, and the length on the long side of the 6th rectangle is more than remaining all rectangle and more than the isosceles trapezoid
Bottom length.
2. self-fastening nut in right angle as claimed in claim 1, it is characterised in that the outer ring portion is in the isosceles trapezoid
Plane where bottom is combined to form with the plane where second string.
3. self-fastening nut in right angle as claimed in claim 1, it is characterised in that the described cylindrical and inner circle is concentric circles,
The right angled triangle that two base angles of the isosceles trapezoid are formed is removed, the right angle edge lengths of the right angled triangle are less than described
The height of isosceles trapezoid.
4. self-fastening nut in right angle as claimed in claim 1, it is characterised in that the nut portion is shaped as two concentric circles
The annulus of formation, described two concentric circles are from being respectively outside to inside the first circle and the second circle, and described first justifies and the cylindrical phase
Together, screw thread is dispersed with the second round week, first circle is embedded in described cylindrical interior.
5. self-fastening nut in right angle as claimed in claim 1, it is characterised in that the drift angle exposed to outside is all fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172310.6A CN104791354B (en) | 2015-04-13 | 2015-04-13 | A kind of right angle self-fastening nut and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510172310.6A CN104791354B (en) | 2015-04-13 | 2015-04-13 | A kind of right angle self-fastening nut and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104791354A CN104791354A (en) | 2015-07-22 |
| CN104791354B true CN104791354B (en) | 2017-08-11 |
Family
ID=53556419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510172310.6A Active CN104791354B (en) | 2015-04-13 | 2015-04-13 | A kind of right angle self-fastening nut and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791354B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787906Y (en) * | 2005-01-26 | 2006-06-14 | 重庆宗申技术开发研究有限公司 | Rubber nut |
| CN1918747A (en) * | 2004-02-17 | 2007-02-21 | Pem管理股份有限公司 | Circuit board mounting bracket |
| CN203676444U (en) * | 2014-02-17 | 2014-07-02 | 吕玉英 | Suction cup type three-hole line clip |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489175A (en) * | 1994-05-25 | 1996-02-06 | Winton, Iii; George R. | Flush-mounting right-angle fastener |
| US5810501A (en) * | 1996-10-22 | 1998-09-22 | Penn Engineering & Manufacturing Corp. | Perpendicular edge fastener |
| US20060289710A1 (en) * | 2005-06-22 | 2006-12-28 | Bentrim Brian G | Combined circuit board tie-wrap bracket |
| CN203967647U (en) * | 2014-05-15 | 2014-11-26 | 厦门理工学院 | Multifunction clips wire clamp or winding clamp |
| CN204610515U (en) * | 2015-04-13 | 2015-09-02 | 宾科精密部件(中国)有限公司 | A kind of right angle self-fastening nut |
-
2015
- 2015-04-13 CN CN201510172310.6A patent/CN104791354B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1918747A (en) * | 2004-02-17 | 2007-02-21 | Pem管理股份有限公司 | Circuit board mounting bracket |
| CN2787906Y (en) * | 2005-01-26 | 2006-06-14 | 重庆宗申技术开发研究有限公司 | Rubber nut |
| CN203676444U (en) * | 2014-02-17 | 2014-07-02 | 吕玉英 | Suction cup type three-hole line clip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104791354A (en) | 2015-07-22 |
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