CN101210584A - Technique for manufacturing vehicle door bonnet lock nut plate - Google Patents
Technique for manufacturing vehicle door bonnet lock nut plate Download PDFInfo
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- CN101210584A CN101210584A CN 200710172400 CN200710172400A CN101210584A CN 101210584 A CN101210584 A CN 101210584A CN 200710172400 CN200710172400 CN 200710172400 CN 200710172400 A CN200710172400 A CN 200710172400A CN 101210584 A CN101210584 A CN 101210584A
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- vehicle door
- lock nut
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Abstract
The invention discloses a manufacturing process of a lock nut panel for a vehicle door. The lock nut panel is a baseplate provided with two lug bosses, each lug boss is provided with a screw hole, and the baseplate is provided with a hem and two square holes; and the lock catch nut panel for a front door uses Type 45 steel. The manufacturing process comprises the following steps: feeding sheet materials, stretching 1, stretching 2, stretching 3, stretching 4, stretching 5, molding, punching, shaping, ripping edges, punching the square holes, folding the hem, grinding the platform, tapping thread, quenching, tempering in low temperature and black oxide coating. By adopting the structure, the invention ensures the quality of components and the security of the whole vehicle, avoids the problem of high scrap rate of components due to instable quality, and effectively saves the cost.
Description
Technical field
The present invention relates to a kind of part manufacturing process, particularly a kind of manufacturing process of vehicle door bonnet lock nut plate.
Background technique
The Qianmen snap close nut plate of automobile is to be used for fixing the Qianmen snap close, for guaranteeing traffic safety, rules to the technical requirements (GB/T3098.2-2000,10.9 grade standards) of the Qianmen snap close nut plate of automobile are: (1) guarantees that load requires to reach 10 grades (38100N); (2) minimal torque is more than or equal to 25NM; (3) Rockwell hardness HRC46-50; (4) satisfy 100,000 car doors and open and close test.
Can't engineering demands with the Qianmen snap close nut plate that former production domesticization substitution material H262YD+ZF50/50 makes.By the CKD part is carried out chemical composition analysis, adopt the 45# steel to make this part, and adopt new production technology: after the annealed state 45# steel shaping operation, carry out quenching heat treatment again.
New moulding process adopts the technology of stretching-shaping-stretching-shaping-annealing-stretching-shaping-moulding.Though the part of manufacturing experimently out energy engineering demands; but because 45# steel hardness height; drawability is poor; though adopt annealing process can reduce hardness in the drawing process; improve tensile property; but because annealing process unprotect atmosphere (needs special annealing furnace; there is this ability in China unavailability merchant temporarily); cause part part material decarburization in the annealing process, so short 1-1.5 the tooth line of partial nut screw die line aspect ratio requirement the part hardness reduction appears, in following process; cause engagement property poor; guarantee that load does not reach 10 grades; and the attenuation of tooth line gate material, part quality instability, scrappage height.
During the on-the-spot installation of entrucking November 30 in 2006 snap close nut plate takes place and break, original production process can't guarantee part quality, and causes high scrappage, badly influences complete vehicle quality, becomes to produce cost and entrucking efficient.
Because the defective that the manufacturing process of above-mentioned existing vehicle door bonnet lock nut plate exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and practice in addition, in the hope of creating the manufacturing process of the stable vehicle door bonnet lock nut plate of part quality.Constantly study, test and improve through the inventor, create the present invention.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of manufacturing process that can produce stay-in-grade vehicle door bonnet lock nut plate.
For solving the problems of the technologies described above, the described buckling nut plate of the manufacturing process of vehicle door bonnet lock nut plate of the present invention is that two boss are set on the substrate, one tapped hole is set on each boss, one flanging is set on the described substrate, two square holes are set on described substrate, Qianmen snap close nut plate adopts the 45# steel, and manufacturing process comprises the steps
The first, plate cutting;
The second, stretch, described sheet material is repeatedly stretched stretched two described boss;
The 3rd, punching, punching respectively on two boss;
The 4th, integer;
The 5th, cutting edge is carried out cutting edge according to the size and dimension that designs to part;
The 6th, towards square hole, on described substrate, go out two square through holes;
The 7th, flanging carries out flanging on substrate;
The 8th, polish platform, the hole of two boss and boss is polished flat;
The 9th, the mode tapping of thread-rolling screw is adopted in tapping in the hole of boss;
The tenth, the back tempering of quenching is carried out carrying out the low-temperature tempering processing after the Quenching Treatment to whole buckling nut plate.
Preferably, the temper of described Qianmen snap close nut plate is carried out in salt bath furnace.
Preferably, described substrate is carried out five times stretch, stretched two described boss on described substrate, and then carry out the one-off drawing moulding.
Preferably, whole buckling nut plate carried out tempering after, the processing of turning black again.
After adopting such structure, guaranteed part quality and car load safety after adopting new material and technology, avoided effectively providing cost savings because of the unstable high problem of part scrappage that takes place of quality.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the plan view of Qianmen snap close nut plate.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 be among Fig. 2 A-A to sectional view.
Embodiment
The manufacturing process of vehicle door bonnet lock nut plate comprises following several manufacturing procedure according to the present invention, hereinafter will be described in detail this with reference to accompanying drawing.
This manufacturing process will be made is as shown in Figure 1 and Figure 2 buckling nut plate, the structure of this buckling nut plate is as follows: the buckling nut plate is that two boss 1 are set on the substrate 4, on each boss 1 tapped hole is set, a flanging 2 and two square holes 3 are set on the substrate 4.This substrate 4 is a rectangular sheet material, respectively is symmetrical arranged a tubaeform boss 1 about on the substrate 4, and a tapped hole is set on the boss 1.The middle part of substrate 4 and limit portion respectively are provided with a square through hole.One side of substrate 4 is turned up, make it vertical with substrate 4.The part of square through hole is also holded up along with flanging 2, and is vertical with the square hole of not turning up 3, the part that two boss 1 are not still being turned up.
The first step of this manufacturing process adopts the 45# steel to carry out plate cutting as expanded material;
Second goes on foot, and after the 45# steel is carried out stretching for five times, carries out final drawing and forming again, and it is that taper shape, top are columniform tubaeform that stretched two above-mentioned platforms, platform become the bottom.Because the process characteristic that the 45# steel is difficult to stretch, so, stretch and final drawing and forming the shape and the height that stretch for totally six times and just can reach the drawing requirement by five times.Five stretchings are the preferred forms of this technology, before drawing and forming, can repeatedly stretch to part, and promptly twice above stretching is all within protection scope of the present invention;
The 3rd step, punching respectively on two boss 1;
In the 4th step, integer guarantees that effective thread length reaches designing requirement;
In the 5th step, cutting edge is carried out cutting edge according to the size and dimension that designs to part;
In the 6th step,, respectively dash a square hole 3 at the middle part of part and limit portion towards square hole;
The 7th step, part is carried out flanging, as shown in Figure 3, the knuckle internal diameter is 0.5mm;
The 8th step polished platform, and the top and circular hole of platform is polished flat;
In the 9th step, the process step of tapping is finished in tapping by the mode of thread-rolling screw.Because sheet metal thickness is thin, has only 1.6mm, the internal diameter at Ф 10 places, stretched back has only Ф 7.4, can't obtain the screw thread of M8 with conventional tapping.Therefore, screw thread adopts the mode of extruding to obtain;
In the tenth step, part is carried out Quenching Treatment;
In the 11 step, in salt bath furnace, carry out low-temperature tempering and handle.
Wherein the tenth go on foot the 11 heat treatment process that goes on foot, can effectively improve screw strength, this tempering mode is to guarantee the effective ways of screw strength.
After part is carried out temper, can also be at last to the part processing of turning black.
The manufacturing process of vehicle door bonnet lock nut plate of the present invention has solved not only that the decarburization phenomenon appears in the part part material in the 45# steel annealing process, cause part hardness to reduce, the part quality problem of unstable, and stretch and extruding by the limit when stretching, effectively guarantee tooth line wall thickness (2mm), produce exemplar and satisfied engine request.
On December 19th, 2006 adopted new technology and provides since the part, and not only the test sampling observation is qualified, and installation question does not appear in scene again, and had passed through 100,000 times door knob test.
Guaranteed part quality and car load safety after adopting new material and technology, avoided effectively providing cost savings because of the unstable high problem of part scrappage that takes place of quality.
Claims (4)
1. the manufacturing process of a vehicle door bonnet lock nut plate, described buckling nut plate is that two boss are set on the substrate, one tapped hole is set on each boss, one flanging is set on the described substrate, two square holes are set on described substrate, it is characterized in that: described Qianmen snap close nut plate adopts the 45# steel, and manufacturing process comprises the steps
The first, plate cutting;
The second, stretch, described sheet material is repeatedly stretched stretched two described boss;
The 3rd, punching, punching respectively on two boss;
The 4th, integer;
The 5th, cutting edge is carried out cutting edge according to the size and dimension that designs to part;
The 6th, towards square hole, on described substrate, go out two square through holes;
The 7th, flanging carries out flanging on substrate;
The 8th, polish platform, the hole of two boss and boss is polished flat;
The 9th, the mode tapping of thread-rolling screw is adopted in tapping in the hole of boss;
The tenth, the back tempering of quenching is carried out carrying out the low-temperature tempering processing after the Quenching Treatment to whole buckling nut plate.
2. the manufacturing process of vehicle door bonnet lock nut plate according to claim 1, it is characterized in that: the temper to described Qianmen snap close nut plate is carried out in salt bath furnace.
3. the manufacturing process of vehicle door bonnet lock nut plate according to claim 1 is characterized in that: described substrate carried out five times stretches, and stretched two described boss on described substrate, and then carry out the one-off drawing moulding.
4. the manufacturing process of vehicle door bonnet lock nut plate according to claim 1 is characterized in that: after whole buckling nut plate is carried out tempering, and the processing of turning black again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710172400 CN100549437C (en) | 2007-12-21 | 2007-12-21 | The manufacturing process of vehicle door bonnet lock nut plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710172400 CN100549437C (en) | 2007-12-21 | 2007-12-21 | The manufacturing process of vehicle door bonnet lock nut plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101210584A true CN101210584A (en) | 2008-07-02 |
| CN100549437C CN100549437C (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710172400 Expired - Fee Related CN100549437C (en) | 2007-12-21 | 2007-12-21 | The manufacturing process of vehicle door bonnet lock nut plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN100549437C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091913A (en) * | 2010-12-19 | 2011-06-15 | 镇江中虎弹簧有限公司 | Thread machining process of striker nut plate |
| CN102152066A (en) * | 2010-12-20 | 2011-08-17 | 昆山市大地化工新技术开发有限公司 | Process for stamping and tapping TV backboard nut |
| CN102240769A (en) * | 2011-05-20 | 2011-11-16 | 河南星光机械制造有限公司 | Method for manufacturing special vehicular lock part |
| CN102493983A (en) * | 2011-12-01 | 2012-06-13 | 长春轨道客车股份有限公司 | Screwing-type screw hole-free fixation method for stainless steel roof chromium zirconium copper bar |
| CN102817901A (en) * | 2012-08-28 | 2012-12-12 | 靖江市新程汽车零部件有限公司 | Adjusting device convenient to fasten and mount |
| CN103008452A (en) * | 2013-01-11 | 2013-04-03 | 上海电机学院 | Threaded plate forming process and die |
| CN106194963A (en) * | 2016-07-04 | 2016-12-07 | 刘玲娟 | A kind of automobile metal support stiffnut plate structure |
| CN106222367A (en) * | 2016-08-31 | 2016-12-14 | 抚州申铃汽车配件有限责任公司 | A kind of pollution-free blackening processing technology of flange |
| CN106216561A (en) * | 2016-07-04 | 2016-12-14 | 刘玲娟 | A kind of automobile metal support stiffnut plate technique |
| CN109340242A (en) * | 2018-12-25 | 2019-02-15 | 温州市鸿图汽车零部件有限公司 | A kind of preparation process of abnormity nut |
| CN110080637A (en) * | 2019-04-30 | 2019-08-02 | 阿尔特汽车技术股份有限公司 | A kind of automobile side-door lock nutplate fixed structure and its installation method |
| CN110965866A (en) * | 2019-12-10 | 2020-04-07 | 北京汽车集团越野车有限公司 | Automobile door lock hasp nut plate and vehicle that has it |
-
2007
- 2007-12-21 CN CN 200710172400 patent/CN100549437C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091913A (en) * | 2010-12-19 | 2011-06-15 | 镇江中虎弹簧有限公司 | Thread machining process of striker nut plate |
| CN102152066A (en) * | 2010-12-20 | 2011-08-17 | 昆山市大地化工新技术开发有限公司 | Process for stamping and tapping TV backboard nut |
| CN102240769A (en) * | 2011-05-20 | 2011-11-16 | 河南星光机械制造有限公司 | Method for manufacturing special vehicular lock part |
| CN102493983A (en) * | 2011-12-01 | 2012-06-13 | 长春轨道客车股份有限公司 | Screwing-type screw hole-free fixation method for stainless steel roof chromium zirconium copper bar |
| CN102817901A (en) * | 2012-08-28 | 2012-12-12 | 靖江市新程汽车零部件有限公司 | Adjusting device convenient to fasten and mount |
| CN103008452B (en) * | 2013-01-11 | 2015-02-11 | 上海电机学院 | Threaded plate forming process and die |
| CN103008452A (en) * | 2013-01-11 | 2013-04-03 | 上海电机学院 | Threaded plate forming process and die |
| CN106194963A (en) * | 2016-07-04 | 2016-12-07 | 刘玲娟 | A kind of automobile metal support stiffnut plate structure |
| CN106216561A (en) * | 2016-07-04 | 2016-12-14 | 刘玲娟 | A kind of automobile metal support stiffnut plate technique |
| CN106222367A (en) * | 2016-08-31 | 2016-12-14 | 抚州申铃汽车配件有限责任公司 | A kind of pollution-free blackening processing technology of flange |
| CN109340242A (en) * | 2018-12-25 | 2019-02-15 | 温州市鸿图汽车零部件有限公司 | A kind of preparation process of abnormity nut |
| CN109340242B (en) * | 2018-12-25 | 2020-07-21 | 温州市鸿图汽车零部件有限公司 | Preparation process of special-shaped nut |
| CN110080637A (en) * | 2019-04-30 | 2019-08-02 | 阿尔特汽车技术股份有限公司 | A kind of automobile side-door lock nutplate fixed structure and its installation method |
| CN110080637B (en) * | 2019-04-30 | 2023-05-26 | 阿尔特汽车技术股份有限公司 | Automobile side door lock catch nut plate fixing structure and installation method thereof |
| CN110965866A (en) * | 2019-12-10 | 2020-04-07 | 北京汽车集团越野车有限公司 | Automobile door lock hasp nut plate and vehicle that has it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100549437C (en) | 2009-10-14 |
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Granted publication date: 20091014 Termination date: 20191221 |