CN104763725A - Patch nut and machining process thereof - Google Patents
Patch nut and machining process thereof Download PDFInfo
- Publication number
- CN104763725A CN104763725A CN201510127889.4A CN201510127889A CN104763725A CN 104763725 A CN104763725 A CN 104763725A CN 201510127889 A CN201510127889 A CN 201510127889A CN 104763725 A CN104763725 A CN 104763725A
- Authority
- CN
- China
- Prior art keywords
- hole
- nut body
- nut
- paster
- welding end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 44
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000009713 electroplating Methods 0.000 claims abstract description 11
- 238000010079 rubber tapping Methods 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 16
- 238000004080 punching Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid 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
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to a patch nut and a machining process thereof. The patch nut comprises a nut body, wherein the nut body is provided with a welding end face, and a circle of zigzag convex teeth protruding towards the outer side is formed on the edge of the welding end face. The machining process comprises the steps of providing a plate raw material, stamping the predetermined position of the plate raw material to form a through hole, extruding the plate raw material provided with the through hole so as to form the nut body, knurling the edge of the welding end face of the nut body, electroplating the nut body so as to form a tin coating layer on the outer surface of the nut body and tapping the through hole. The patch nut can be welded to be firm, reliable, order and attractive. The machining process achieves patch nut machining in a stamping mode, production machining efficiency is higher is about 20 times of machine tool machining, and batch production requirement can be met.
Description
Technical field
The present invention relates to nut processing technique field, particularly a kind of paster nut and processing technology thereof.
Background technique
Nut realizes the fixing of parts and connection function.And paster nut is generally be used in circuit-board industry, for fixed electronic element.Namely, paster nut is welded on circuit boards by scolding tin, and realize the fixing of electronic component by rotating screw.But current this paster nut, when welding on circuit boards, may exist scolding tin uneven, make the carefully and neatly done of welding, meanwhile, during welding, unnecessary scolding tin overflows from nut circumference, affects attractive in appearance, by affecting its electrical property.And, nut only on one face with welding circuit board, its welding after soundness and reliability all lower.In addition, current nut processing technology, is all processed to form by lathe, and machined into mode manufacturing efficiency is low, and cost is high, for this undersized paster nut, adopts this machined into mode, cannot meet the requirement of batch production.
Summary of the invention
Main purpose of the present invention is, for above-mentioned deficiency of the prior art, provides a kind of paster nut and processing technology thereof.
For achieving the above object, on the one hand, paster nut provided by the invention, comprises nut body, and described nut body has a welding end surface, and the edge of described welding end surface is formed with the flexuose double wedge that a circle protrudes laterally.
Preferably, the tip of described flexuose double wedge is concordant with the side of described nut body.
Preferably, described nut body is rectangle, four edges of welding end surface shape described flexuose double wedge in a row respectively on nut body described in rectangle.
Preferably, described nut body is provided with the tapped hole running through described welding end surface.
On the other hand, the processing technology of paster nut provided by the invention, comprising:
One sheet material raw material is provided;
Cold header are utilized to become through hole in described sheet material raw material precalculated position upper punch swaging;
Extruded the sheet material raw material being formed with described through hole by cold header, to form nut body, described through hole is positioned on described nut body;
Embossing is carried out, the flexuose double wedge being formed with a circle to make the edge of welding end surface and protruding laterally by the welding end surface edge of cold header to described nut body;
Utilize electroplating technology to electroplate described nut body, form a tin coating to make the outer surface of nut body;
By tooth machining unit, tapping is carried out to described through hole, to make to form internal thread in described through hole.
Preferably, extruded the sheet material raw material being formed with described through hole by cold header, to form nut body, described through hole also comprises before being positioned on described nut body:
Cold header are utilized to carry out chamfering to the upper edge of described through hole and lower edge.
Preferably, electroplating technology is utilized to electroplate described nut body, to make before the outer surface of nut body forms a tin coating, also to comprise:
By cold header, repairing punching press is carried out to described through hole, formed to make described through hole and meet criterion of acceptability.
Preferably, utilize before electroplating technology electroplates described nut body, also comprise:
By centrifugal grinder, centrifugal grinding is carried out to the outer surface of described nut body and through hole inside, with the burr of the outer surface and through hole of removing described nut body.
Preferably, by tooth machining unit, tapping is carried out to described through hole, after making forming internal thread in described through hole, also comprises:
Magnetic force polishing is carried out to the female through hole of formation.
The invention has the beneficial effects as follows: according to paster nut provided by the invention, be formed with the flexuose double wedge that a circle protrudes laterally at the edge of welding end surface, when welding, unnecessary scolding tin flow to after overflowing in peripheral flexuose double wedge gap, so, on the one hand, the scolding tin of welding end surface can be made even, ensure that the paster nut of welding is carefully and neatly attractive in appearance, on the other hand, the scolding tin overflowed is combined with flexuose double wedge gap, increases bonding area, improves soundness and the reliability of welding.And processing technology provided by the invention, realize the processing of paster nut with impact style, its production and processing efficiency is higher, is equivalent to about 20 times of machined into, can meet the requirement of batch production.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention paster nut overall structure schematic diagram;
Fig. 2 is embodiment of the present invention paster nut Facad structure schematic diagram;
Fig. 3 is the flow chart of embodiment of the present invention paster nut processing technology.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
Shown in Fig. 2, embodiments provide a kind of paster nut, comprise nut body 10, nut body 10 has a welding end surface 101, and the edge of welding end surface 101 is formed with the flexuose double wedge 1011 that a circle protrudes laterally.
In a particular application, by a lap welding tin on the position of opening figure of circuit board, the welding end surface 101 of paster nut is contacted with scolding tin, by welding procedure by nut-welding on circuit boards.In scolding tin melting process, unnecessary scolding tin can be spilled in the gap of the flexuose double wedge 1011 of welding end surface 101 periphery.
In one embodiment of the invention, the tip of flexuose double wedge 1011 is concordant with the side of described nut body 10.So, can, when not increasing the volume of paster nut, welding end surface 101 edge can be made to form flexuose double wedge 1011.
In one embodiment of the invention, nut body 10 is rectangle, four edges of welding end surface 101 shape described flexuose double wedge 1011 in a row respectively on nut body 10 described in rectangle.This structural design can make the structure after welding more solid and reliable.
In addition, nut body 10 is provided with the tapped hole 102 running through described welding end surface 101, and this tapped hole 102 and screw fit can realize element to fix on circuit boards.
In sum, the paster nut that the embodiment of the present invention provides, the flexuose double wedge 1011 that a circle protrudes laterally is formed at the edge of welding end surface 101, when welding, unnecessary scolding tin flow to after overflowing in peripheral flexuose double wedge 1011 gap, so, on the one hand, the scolding tin of welding end surface 101 can be made even, ensure that the paster nut of welding is carefully and neatly attractive in appearance, on the other hand, the scolding tin of spilling is combined with flexuose double wedge 1011 gap, increase bonding area, improve soundness and the reliability of welding.
With reference to shown in Fig. 3, the embodiment of the present invention additionally provides a kind of processing technology of paster nut, comprises the following steps:
S101, provide a sheet material raw material, this sheet material raw material is metal material.
S102, cold header are utilized to become through hole in described sheet material raw material precalculated position upper punch swaging.
It should be noted that, in this step, can the multiple through hole of disposable punching press, the corresponding tapped hole as a paster nut of each through hole.
S103, extruded the sheet material raw material being formed with described through hole by cold header, to form nut body, described through hole is positioned on described nut body.That is, this step is on the sheet material raw material after punching, carry out the external frame that punching press forms paster nut, namely forms blank.
Be understandable that, in step S102 and S103, owing to first carrying out punching, then carry out external frame punching press, so disposable punching press can form multiple blank, that is, this technique can the multiple paster nut of disposable processing.
S104, carry out embossing by the welding end surface edge of cold header to described nut body, the flexuose double wedge being formed with a circle to make the edge of welding end surface and protruding laterally.
S105, utilize electroplating technology to electroplate described nut body, form a tin coating to make the outer surface of nut body.Due to the paster nut after shaping in use, need to weld with circuit board, so, in this step, electroplate one deck tin coating by electroplating technology at the outer surface of nut body, this paster nut can be made to have better welding performance.
S106, by tooth machining unit, tapping is carried out to described through hole, to make to form internal thread in described through hole.
In one embodiment of the invention, by cold header, the sheet material raw material being formed with described through hole is extruded, to form nut body, described through hole also comprises before being positioned on described nut body: utilize cold header to carry out chamfering to the upper edge of described through hole and lower edge.Namely, by this process step, chamfering can be carried out to through hole, so that assemble with threaded piece.
In one embodiment of the invention, electroplating technology is utilized to electroplate described nut body, to make before the outer surface of nut body forms a tin coating, also to comprise: carry out repairing punching press by cold header to described through hole, formed to make described through hole and meet criterion of acceptability.May be there is the problem such as size error or out-of-shape in the through hole formed due to first time punching press, therefore, by this process step, can carry out plastic repair, make through hole meet criterion of acceptability to through hole.
More favorably, in yet another embodiment of the present invention, utilize before electroplating technology electroplates described nut body, also comprise: by centrifugal grinder, centrifugal grinding is carried out to the outer surface of described nut body and through hole inside, with the burr of the outer surface and through hole of removing described nut body.That is, by this process step, deburring process can be carried out to the outer surface of nut body and through hole, make the workpiece formed there is no burr etc.
In addition, in some embodiments of the invention, by tooth machining unit, tapping is carried out to described through hole, after making forming internal thread in described through hole, also comprise: magnetic force polishing is carried out to the female through hole of formation.So, can clear up through hole inside chip, burr etc., make the tapped hole standard more formed.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (9)
1. a paster nut, is characterized in that, comprises nut body, and described nut body has a welding end surface, and the edge of described welding end surface is formed with the flexuose double wedge that a circle protrudes laterally.
2. paster nut according to claim 1, is characterized in that, the tip of described flexuose double wedge is concordant with the side of described nut body.
3. paster nut according to claim 1, is characterized in that, described nut body is rectangle, four edges of welding end surface shape described flexuose double wedge in a row respectively on nut body described in rectangle.
4. paster nut according to claim 1, is characterized in that, described nut body is provided with the tapped hole running through described welding end surface.
5. a processing technology for paster nut, is characterized in that, comprising:
One sheet material raw material is provided;
Cold header are utilized to become through hole in described sheet material raw material precalculated position upper punch swaging;
Extruded the sheet material raw material being formed with described through hole by cold header, to form nut body, described through hole is positioned on described nut body;
Embossing is carried out, the flexuose double wedge being formed with a circle to make the edge of welding end surface and protruding laterally by the welding end surface edge of cold header to described nut body;
Utilize electroplating technology to electroplate described nut body, form a tin coating to make the outer surface of nut body;
By tooth machining unit, tapping is carried out to described through hole, to make to form internal thread in described through hole.
6. the processing technology of paster nut according to claim 5, is characterized in that, is extruded the sheet material raw material being formed with described through hole by cold header, and to form nut body, described through hole also comprises before being positioned on described nut body:
Cold header are utilized to carry out chamfering to the upper edge of described through hole and lower edge.
7. the processing technology of paster nut according to claim 5, is characterized in that, utilizes electroplating technology to electroplate described nut body, to make before the outer surface of nut body forms a tin coating, also to comprise:
By cold header, repairing punching press is carried out to described through hole, formed to make described through hole and meet criterion of acceptability.
8. the processing technology of paster nut according to claim 5, is characterized in that, utilizes before electroplating technology electroplates described nut body, also comprises:
By centrifugal grinder, centrifugal grinding is carried out to the outer surface of described nut body and through hole inside, with the burr of the outer surface and through hole of removing described nut body.
9. the processing technology of paster nut according to claim 5, is characterized in that, carries out tapping by tooth machining unit to described through hole, after making forming internal thread in described through hole, also comprises:
Magnetic force polishing is carried out to the female through hole of formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127889.4A CN104763725A (en) | 2015-03-23 | 2015-03-23 | Patch nut and machining process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127889.4A CN104763725A (en) | 2015-03-23 | 2015-03-23 | Patch nut and machining process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104763725A true CN104763725A (en) | 2015-07-08 |
Family
ID=53645743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510127889.4A Pending CN104763725A (en) | 2015-03-23 | 2015-03-23 | Patch nut and machining process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763725A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587739A (en) * | 2016-03-24 | 2016-05-18 | 陈玲辉 | Multiangular nut with equal wall thickness |
| CN105873408A (en) * | 2016-05-30 | 2016-08-17 | 努比亚技术有限公司 | PCB fixing structure and mobile terminal |
| CN107671498A (en) * | 2017-08-04 | 2018-02-09 | 丹阳市宏泰金属制品厂 | A kind of communications connectors outer conductor processing method |
| CN108057995A (en) * | 2017-12-13 | 2018-05-22 | 厦门金宏达汽车部件制造有限公司 | One kind links closely nut punching tapping technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439793U (en) * | 2009-03-07 | 2010-04-21 | 鸿富锦精密工业（深圳）有限公司 | Welding screw nut |
| CN102764848A (en) * | 2012-08-06 | 2012-11-07 | 浙江明泰标准件有限公司 | Processing technology of welded nut |
| CN103452993A (en) * | 2012-06-01 | 2013-12-18 | 鸿富锦精密工业（深圳）有限公司 | Nut and electronic device shell with same |
| US20150068015A1 (en) * | 2013-09-06 | 2015-03-12 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Embedded nut and method of assembling the embedded nut to an amorphous alloy sheet |
| CN204553486U (en) * | 2015-03-23 | 2015-08-12 | 深圳市中金科五金制造有限公司 | Paster nut |
-
2015
- 2015-03-23 CN CN201510127889.4A patent/CN104763725A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201439793U (en) * | 2009-03-07 | 2010-04-21 | 鸿富锦精密工业（深圳）有限公司 | Welding screw nut |
| CN103452993A (en) * | 2012-06-01 | 2013-12-18 | 鸿富锦精密工业（深圳）有限公司 | Nut and electronic device shell with same |
| CN102764848A (en) * | 2012-08-06 | 2012-11-07 | 浙江明泰标准件有限公司 | Processing technology of welded nut |
| US20150068015A1 (en) * | 2013-09-06 | 2015-03-12 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Embedded nut and method of assembling the embedded nut to an amorphous alloy sheet |
| CN204553486U (en) * | 2015-03-23 | 2015-08-12 | 深圳市中金科五金制造有限公司 | Paster nut |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587739A (en) * | 2016-03-24 | 2016-05-18 | 陈玲辉 | Multiangular nut with equal wall thickness |
| CN105873408A (en) * | 2016-05-30 | 2016-08-17 | 努比亚技术有限公司 | PCB fixing structure and mobile terminal |
| CN107671498A (en) * | 2017-08-04 | 2018-02-09 | 丹阳市宏泰金属制品厂 | A kind of communications connectors outer conductor processing method |
| CN108057995A (en) * | 2017-12-13 | 2018-05-22 | 厦门金宏达汽车部件制造有限公司 | One kind links closely nut punching tapping technique |
| CN108057995B (en) * | 2017-12-13 | 2020-05-05 | 厦门金宏达汽车部件制造有限公司 | Stamping and tapping process for fastening nut |
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| C06 | Publication | ||
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
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| RJ01 | Rejection of invention patent application after publication |