CN107618575A - The processing method of fatigue life high heavy truck rear guard support - Google Patents
The processing method of fatigue life high heavy truck rear guard support Download PDFInfo
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- CN107618575A CN107618575A CN201710825582.0A CN201710825582A CN107618575A CN 107618575 A CN107618575 A CN 107618575A CN 201710825582 A CN201710825582 A CN 201710825582A CN 107618575 A CN107618575 A CN 107618575A
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- carrier base
- tube
- stand tube
- stand
- pipe
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Abstract
The present invention relates to a kind of processing method of high heavy truck rear guard support of fatigue life, including：Carrier base and stand tube, stand tube are connected with carrier base side step, and the carrier base is flange arrangement, and its side is provided with the cylindrical step being connected using carrier base center line as axis, with stand tube；Described stand tube is that its end shape is by a radicle tube wall after turgor pressure reaming processing：By the straight tube being connected with carrier base cylinder step and one section of reducer pipe formed in " loudspeaker " shape pipe；Described carrier base and the attachment structure of stand tube are：The two is interference fitted, its junction full weld；Present invention beneficial effect compared with the prior art is：1st, fusion length is added, improves weld strength.2nd, production and processing technology is simple, and production cost is low；3rd, tube wall is not in fatigue fracture phenomenon.
Description
Technical field
It is specifically a kind of to be used for heavy truck splash apron bracket the present invention relates to a kind of auto parts and components.
Background technology
At present, in domestic heavy truck a kind of splash apron bracket of generally use Patent No.：
ZL2012206494798, it is entitled：" a kind of splash apron bracket on heavy-duty car ".Its structure by flange, shape tube and
Pin composition is filled in, flange is arranged on the end outer wall of shape tube, and plug pin is arranged in special-shaped tube end endoporus, flange center hole,
Special-shaped tube end and plug pin lateral surface is shaped as circular triangle, and three is interference fit.The product is producing and used process
In there is following point：1st, because flange center hole, special-shaped tube end and plug pin profile are circular triangle, three is connected as
Interference tight fit, in production to flange, shape tube and fill in pin machining accuracy and axiality require it is very high, therefore production technology compared with
Complexity, cost are higher.2nd, because mud guard is suspended in splash apron bracket on shape tube other end straight section, during use shape tube by
Force distribution situation is nearer from flange, and bigger by pulling-out force, the stress on tube wall is also bigger；When heavy truck exists for a long time
Road conditions compare when running under the conditions of harsh conditions, and tearing with tube wall easily occurs pulling in the plug pin being interference fitted in special-shaped pore
Split problem.
The content of the invention
It is an object of the invention to overcome the shortcomings of in above-mentioned technology, there is provided a kind of product structure and processing technology be simple,
Production cost is low, fatigue life high heavy-duty car splash apron bracket and its processing method.
The technical solution used in the present invention is：A kind of heavy truck splash apron bracket, including：Carrier base and stand tube,
Stand tube is connected with carrier base side step, and the carrier base is flange arrangement, its side be provided with using carrier base center line as
Axis, the cylindrical step being connected with stand tube；Cylindrical step top is provided with convex portion, is chamfering structure, for carrier base with
The assembling of stand tube interference fit.
Described stand tube is that its end shape is by a radicle tube wall after turgor pressure reaming processing：By with support
The straight tube and one section of reducer pipe in " loudspeaker " shape pipe composition that seat cylinder step is connected, the straight tube internal diameter size of reducer pipe are smaller
In carrier base cylinder step diameter dimension, the two is interference fit.
Described carrier base and the attachment structure of stand tube are：In cylinder step press-in stand tube straight tube hole, the two was
It is full of cooperation, its junction full weld.
Heavy truck splash apron bracket processing method of the present invention comprises the following steps：
First, stand tube is processed
1st, blanking, using saw to the tube blank size needed for steel pipe cutting sawing；
2nd, chamfering, chamfering is carried out to pipe using instrument lathe；
3rd, bend pipe, bend pipe is carried out to the pipe after chamfering using bending machine；
4th, rise mouth, with second mate rise mouthful shaping dies the mother rib lateral rotundum of bend pipe one is carried out on a hydraulic press respectively turgor pressure reaming twice into
Shape, bend pipe end is set to form a deformation tube pipe portion.
2nd, carrier base is processed
Blank material is processed using lathe.
3rd, bracket assembled
1st, elastic conjunction, carrier base cylinder step is pressed into stand tube using hydraulic press；
2nd, weld, assembly welding is carried out to stand tube, carrier base using frock clamp；
3rd, ball blast, ball blast is carried out to support using shot-blasting machine；
4th, plastic-spraying, support is surface-treated, plastic-spraying, high-temperature baking；
5th, packaging and storage, to support marking, packaging, packing, labelling, storage processing.
Present invention beneficial effect compared with the prior art is：1st, compared with original product structure, due to carrier base cylinder table
The caliber that rank is connected is more larger than the caliber increase before reaming, therefore adds fusion length, improves weld strength.2nd, support
Seat stand rank is cylinder, stand tube is pipe, and the flange endoporus of original product, special-shaped pipe connected pipe wall and plug pin profile are circular arc
Triangle, both compare, and the former is simple for production and processing technology, and the latter is complicated, so as to which the former reduces production cost；3rd, due to by
One section of support tube end at nearly carrier base is reducer pipe, larger compared to the increase of former caliber in " loudspeaker " shape pipe, thus identical
Under working condition, tube wall of the invention is not in fatigue fracture phenomenon.
Brief description of the drawings
Fig. 1 is the structural representation of heavy truck rear guard support of the present invention.
Embodiment
1 couple of present invention is described in more detail referring to the drawings.
Fig. 1 is the heavy truck rear guard support of the present invention, including：Carrier base 1 and stand tube 2, stand tube 2 and branch
Stand side step 11 is connected, and the carrier base 1 is flange arrangement, its side is provided with using the center line of carrier base 1 as axis, with
The cylindrical step 11 that stand tube 2 connects；The top of cylindrical step 11 is provided with convex portion 12, is chamfering structure, for carrier base 1 with
The assembling that stand tube 2 is interference fitted.
Described stand tube 2 is that its end shape is by a radicle tube wall after turgor pressure reaming processing：By with support
The straight tube 211 and one section of reducer pipe 21 formed in " loudspeaker " shape pipe 212 that seat cylinder step 11 is connected, the straight tube of reducer pipe 21
211 internal diameter sizes are slightly less than the outside dimension of carrier base cylinder step 11, and the two is interference fit.
Described carrier base 1 and the connected mode of stand tube 2 be：Cylinder step 11 is pressed into the hole of stand tube straight tube 211, and two
Person is is interference fitted, its junction full weld.
Heavy truck splash apron bracket processing method of the present invention comprises the following steps：
First, stand tube is processed
1st, blanking, using saw to the tube blank size needed for common steel tube cutting sawing；
2nd, chamfering, chamfering is carried out to pipe using instrument lathe；
3rd, bend pipe, bend pipe is carried out to the pipe after chamfering using bending machine；
4th, rise mouth, with second mate rise mouthful shaping dies the mother rib lateral rotundum of bend pipe one is carried out on a hydraulic press respectively turgor pressure reaming twice into
Shape, bend pipe end is set to form a deformation tube pipe portion.
2nd, carrier base is processed
Carrier base blank material is processed using lathe.
3rd, bracket assembled
1st, elastic conjunction, carrier base cylinder step is pressed into stand tube using hydraulic press；
2nd, weld, assembly welding, sealing are carried out to stand tube, carrier base using frock clamp；
3rd, ball blast, ball blast is carried out to support using shot-blasting machine；
4th, plastic-spraying, support is surface-treated, plastic-spraying, high-temperature baking；
5th, packaging and storage, to support marking, packaging, packing, labelling, storage processing.
Above two technical scheme contrast test
The stand tube diameter range of usual Automobile mudguard support is 30mm ~ 50mm, and it is a diameter of that this sentences heavy goods vehicles stand tube
50mm, wall thickness are：Exemplified by 4mm：
If according to Patent No.：The product of ZL2012206494798 productions, through experiment, is bearing the super 150KN of maximum pulling-out force
When, the plug pin in support pore will occur occur pulling, tube wall tear problem.If according to structure as shown in Figure 1, rear catch
The a diameter of 50mm of mud plate support taper end tube wall, wall thickness 4mm, a diameter of 75mm of butt end tube wall, wall thickness are：3.7mm, through testing,
When bearing the super 260KN of maximum pulling-out force, can just split problem at taper end tube wall.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not that this practicality is sent out
The restriction of bright embodiment, for those of ordinary skill in the field, it can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to
Among the protection domain that the obvious changes or variations that the spirit of the present invention is extended out is invented still in this practicality.
Claims (1)
1. a kind of processing method of heavy truck splash apron bracket, the splash apron bracket include：Carrier base（1）And stand tube
（2）, it is characterised in that：
Stand tube（2）With carrier base side step（11）It is connected, the carrier base（1）For flange arrangement, its side be provided with
Carrier base（1）The cylindrical step that center line is axis, is connected with stand tube 2（11）, cylindrical step top is provided with convex portion
（12）；
Described stand tube（2）It is that its end shape is by a radicle tube wall after turgor pressure reaming processing：By with carrier base
Cylinder step（11）The straight tube being connected（211）It is in " loudspeaker " shape pipe with one section（212）The reducer pipe of composition（21）；
Described carrier base（1）With stand tube（2）Connected mode be：Cylinder step（11）It is pressed into the straight tube of stand tube（211）
Kong Zhong, the two is is interference fitted, its junction full weld；
Described processing method, comprises the following steps：
First, stand tube is processed,
（1）, blanking, using saw to steel pipe cutting sawing needed for tube blank size；
（2）, chamfering, using instrument lathe Dui Guan Pei carry out chamfering；
（3）, bend pipe, using bending machine to after chamfering Guan Pei carry out bend pipe；
（4）, rise mouth, carry out the shaping of secondary turgor pressure to the mother rib lateral rotundum of bend pipe one respectively on a hydraulic press using second mate's mouthful finishing die that rises and expand
Hole machined, bend pipe end is set to form a deformation pipe portion；
2nd, carrier base is processed,
Blank material is processed using lathe；
3rd, bracket assembled,
（1）, elastic conjunction, using hydraulic press by carrier base cylinder step be pressed into stand tube in；
（2）, welding, using frock clamp to stand tube, carrier base carry out assembly welding, sealing；
（3）, ball blast, using shot-blasting machine to support carry out ball blast；
（4）, plastic-spraying, support is surface-treated, plastic-spraying, high-temperature baking；
（5）, packaging and storage, to support marking, packaging, packing, labelling, storage processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825582.0A CN107618575B (en) | 2014-06-03 | 2014-06-03 | The processing method of fatigue life high heavy truck rear guard bracket |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825582.0A CN107618575B (en) | 2014-06-03 | 2014-06-03 | The processing method of fatigue life high heavy truck rear guard bracket |
| CN201410240129.XA CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240129.XA Division CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107618575A true CN107618575A (en) | 2018-01-23 |
| CN107618575B CN107618575B (en) | 2019-05-17 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710825581.6A Active CN107600192B (en) | 2014-06-03 | 2014-06-03 | The higher heavy truck rear guard bracket of weld strength |
| CN201410240129.XA Active CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
| CN201710825582.0A Active CN107618575B (en) | 2014-06-03 | 2014-06-03 | The processing method of fatigue life high heavy truck rear guard bracket |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710825581.6A Active CN107600192B (en) | 2014-06-03 | 2014-06-03 | The higher heavy truck rear guard bracket of weld strength |
| CN201410240129.XA Active CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN107600192B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441599A (en) * | 2020-03-25 | 2021-09-28 | 宝山钢铁股份有限公司 | Tubular part hydraulic forming and flaring combined process and device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588797A (en) * | 2019-10-23 | 2019-12-20 | 安徽华菱汽车有限公司 | Fender support device and machining method thereof |
| CN113879408B (en) * | 2021-07-29 | 2023-07-21 | 东风商用车有限公司 | Lightweight fender bracket assembly and preparation method of fender support rod thereof |
| CN113753135B (en) * | 2021-09-14 | 2022-12-23 | 东风商用车有限公司 | Commercial vehicle fender bracket and manufacturing process |
| IT202200003108U1 (en) * | 2022-07-25 | 2024-01-25 | Lago Access S R L | MOUNT FOR ANCHORING A FENDER TO A VEHICLE. |
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2014
- 2014-06-03 CN CN201710825581.6A patent/CN107600192B/en active Active
- 2014-06-03 CN CN201410240129.XA patent/CN105172902B/en active Active
- 2014-06-03 CN CN201710825582.0A patent/CN107618575B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100472228B1 (en) * | 2001-11-19 | 2005-03-08 | 기아자동차주식회사 | a mud guard for a vehicle |
| KR20050101061A (en) * | 2004-04-16 | 2005-10-20 | 현대자동차주식회사 | Mud guard stay |
| CN202080348U (en) * | 2010-11-09 | 2011-12-21 | 山东美晨科技股份有限公司 | Fender support with elbow pipe groove structure |
| CN201923223U (en) * | 2010-12-10 | 2011-08-10 | 中国重汽集团济南动力有限公司 | Novel mudguard support |
| CN202541653U (en) * | 2012-02-10 | 2012-11-21 | 三一重工股份有限公司 | Bracket device for tire covers and vehicles utilizing same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441599A (en) * | 2020-03-25 | 2021-09-28 | 宝山钢铁股份有限公司 | Tubular part hydraulic forming and flaring combined process and device |
| CN113441599B (en) * | 2020-03-25 | 2023-02-14 | 宝山钢铁股份有限公司 | Hydraulic forming and flaring combined process and device for tubular part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105172902B (en) | 2017-10-17 |
| CN105172902A (en) | 2015-12-23 |
| CN107618575B (en) | 2019-05-17 |
| CN107600192A (en) | 2018-01-19 |
| CN107600192B (en) | 2019-05-21 |
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