CN105172902B - Heavy truck rear guard support and processing method - Google Patents
Heavy truck rear guard support and processing method Download PDFInfo
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- CN105172902B CN105172902B CN201410240129.XA CN201410240129A CN105172902B CN 105172902 B CN105172902 B CN 105172902B CN 201410240129 A CN201410240129 A CN 201410240129A CN 105172902 B CN105172902 B CN 105172902B
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Abstract
The present invention relates to a kind of heavy truck splash apron bracket, including：Carrier base and stand tube, stand tube are connected with the Side steps of carrier base one, and the carrier base is flange arrangement, and one 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 constituted 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, weld strength is improved.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, a kind of Patent No. of the splash apron bracket generally used in domestic heavy truck：
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, plug pin is arranged in special-shaped tube end endoporus, flange center hole,
Special-shaped tube end and the outer Side faces of plug pin are 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's connection
For interference tight fit, very high is required to the machining accuracy and axiality of flange, shape tube and plug pin in production, therefore production technology
More complicated, cost is higher.2nd, because mud guard is suspended in splash apron bracket on shape tube other end straight section, shape tube when using
Stress point distribution situation is nearer from flange, and bigger by pulling-out force, the stress on tube wall is also bigger；When heavy truck is long-term
When being run under the conditions of road conditions compare harsh conditions, the plug pin being interference fitted in special-shaped pore easily occurs pulling and occurred with tube wall
Tear 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 it is 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 the Side steps of carrier base one, the carrier base be flange arrangement, one Side be provided with using carrier base center line as
Axis, the cylindrical step being connected with stand tube；Cylindrical step top be provided with convex portion, be 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
Straight tube and one section of reducer pipe constituted in " loudspeaker " shape pipe 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, the tube blank size needed for sawing is cut to steel pipe using saw；
2nd, chamfering, chamfering is carried out using instrument lathe to pipe；
3rd, bend pipe, bend pipe is carried out using bending machine to the pipe after chamfering；
4th, rise mouth, and mouthful shaping dies that risen with second mate carries out turgor pressure reaming twice to the Side circular holes of bend pipe one on a hydraulic press respectively
Shaping, makes bend pipe end form a deformation tube pipe portion.
2nd, carrier base is processed
Blank material is processed using lathe.
3rd, bracket assembled
Carrier base cylinder step, is pressed into stand tube by the 1st, elastic conjunction 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 using shot-blasting machine to support；
4th, plastic-spraying, is surface-treated to support, 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 that cylinder, stand tube are 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 that the former reduces production cost；3rd, due to by
One section of support tube end at nearly carrier base is reducer pipe, in " loudspeaker " shape pipe, increases larger compared to former caliber, 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 with
The Side steps 11 of carrier base one are connected, the carrier base 1 be flange arrangement, one Side be provided with by axis of the center line of carrier base 1,
The cylindrical step 11 being connected with stand tube 2；The top of cylindrical step 11 is provided with convex portion 12, is chamfering structure, for carrier base 1
The assembling being interference fitted with stand tube 2.
Described stand tube 2 is that its end shape is by a radicle tube wall after turgor pressure reaming processing：By with support
Straight tube 211 and one section of reducer pipe 21 constituted 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：In the hole of the press-in stand tube of cylinder step 11 straight tube 211, two
Person is interference fit, 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, the tube blank size needed for sawing is cut to common steel tube using saw；
2nd, chamfering, chamfering is carried out using instrument lathe to pipe；
3rd, bend pipe, bend pipe is carried out using bending machine to the pipe after chamfering；
4th, rise mouth, and mouthful shaping dies that risen with second mate carries out turgor pressure reaming twice to the Side circular holes of bend pipe one on a hydraulic press respectively
Shaping, makes bend pipe end form a deformation tube pipe portion.
2nd, carrier base is processed
Carrier base blank material is processed using lathe.
3rd, bracket assembled
Carrier base cylinder step, is pressed into stand tube by the 1st, elastic conjunction 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 using shot-blasting machine to support；
4th, plastic-spraying, is surface-treated to support, 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 this sentences heavy goods vehicles support pipe diameter
It is for 50mm, wall thickness：Exemplified by 4mm：
If according to Patent No.：The product of ZL2012206494798 productions, through experiment, surpasses bearing maximum pulling-out force
During 150KN, will occur the plug pin in support pore and occur pulling, tube wall tear problem.If according to structure as shown in Figure 1,
The a diameter of 50mm of rear guard support taper end tube wall, wall thickness are 4mm, and a diameter of 75mm of butt end tube wall, wall thickness are：3.7mm, warp
Experiment, 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, 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 (2)
1. a kind of heavy truck rear guard support, including：Carrier base（1）And stand tube（2）, stand tube（2）With carrier base
Side step（11）It is connected, it is characterised in that：The carrier base（1）For flange arrangement, its side is provided with carrier base（1）In
Heart line is axis and stand tube（2）The cylindrical step of connection（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 interference fit, its junction full weld；
Described convex portion（12）For chamfering structure；
The reducer pipe（21）Straight tube（211）Internal diameter size is slightly less than carrier base cylinder step（11）Outside dimension, the two
For interference fit.
2. a kind of processing method of heavy truck rear guard support, it is characterised in that comprise the following steps：
First, stand tube is processed,
（1）, blanking, using saw to steel pipe cut sawing needed for tube blank size；
（2）, chamfering, using instrument lathe to pipe carry out chamfering；
（3）, bend pipe, using bending machine to after chamfering pipe 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, makes bend pipe end form one and deforms 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 (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710825581.6A CN107600192B (en) | 2014-06-03 | 2014-06-03 | The higher heavy truck rear guard bracket of weld strength |
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240129.XA CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710825582.0A Division CN107618575B (en) | 2014-06-03 | 2014-06-03 | The processing method of fatigue life high heavy truck rear guard bracket |
| CN201710825581.6A Division CN107600192B (en) | 2014-06-03 | 2014-06-03 | The higher heavy truck rear guard bracket of weld strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105172902A CN105172902A (en) | 2015-12-23 |
| CN105172902B true CN105172902B (en) | 2017-10-17 |
Family
ID=54895492
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240129.XA Active CN105172902B (en) | 2014-06-03 | 2014-06-03 | Heavy truck rear guard support and processing method |
| CN201710825581.6A Active CN107600192B (en) | 2014-06-03 | 2014-06-03 | The higher heavy truck rear guard bracket of weld strength |
| 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 After (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 |
| CN201710825582.0A Active CN107618575B (en) | 2014-06-03 | 2014-06-03 | The processing method of fatigue life high heavy truck rear guard bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN105172902B (en) |
Families Citing this family (5)
| 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 |
| 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 |
| 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 |
| EP4311746A1 (en) * | 2022-07-25 | 2024-01-31 | Lago Accessori S.r.l. | Support for anchoring a mudguard to a vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1043216A1 (en) * | 1999-03-29 | 2000-10-11 | Polyrim | Fixing device for a mudguard for road or agricultural vehicle |
| CN2411378Y (en) * | 1999-12-06 | 2000-12-20 | 永定县长丰机械制造厂 | Integral supporting axle end |
| EP2193981A1 (en) * | 2008-12-01 | 2010-06-09 | Scania CV AB (publ) | Mudguard suspension strut |
| CN201971065U (en) * | 2011-03-10 | 2011-09-14 | 北汽福田汽车股份有限公司 | Mudguard for vehicle wheel |
| CN203078227U (en) * | 2012-12-10 | 2013-07-24 | 中国第一汽车股份有限公司 | Embedded type welding axle housing |
| CN203888892U (en) * | 2014-06-03 | 2014-10-22 | 常州良旭车辆配件有限公司 | Rear-wheel fender support of heavy truck |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19810252C2 (en) * | 1998-03-10 | 2003-03-13 | Man Nutzfahrzeuge Ag | Device for clamping a holding tube and holding tube for commercial vehicles |
| 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 |
| CN201309509Y (en) * | 2008-12-10 | 2009-09-16 | 山东美晨科技股份有限公司 | Novel fender support |
| DE202009016505U1 (en) * | 2009-12-07 | 2010-03-25 | Alberth, Günter | Security support tube bracket |
| 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 |
| CN203345068U (en) * | 2013-06-25 | 2013-12-18 | 常州良旭车辆配件有限公司 | Support for fixing fender of truck front wheel |
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2014
- 2014-06-03 CN CN201410240129.XA patent/CN105172902B/en active Active
- 2014-06-03 CN CN201710825581.6A patent/CN107600192B/en active Active
- 2014-06-03 CN CN201710825582.0A patent/CN107618575B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1043216A1 (en) * | 1999-03-29 | 2000-10-11 | Polyrim | Fixing device for a mudguard for road or agricultural vehicle |
| CN2411378Y (en) * | 1999-12-06 | 2000-12-20 | 永定县长丰机械制造厂 | Integral supporting axle end |
| EP2193981A1 (en) * | 2008-12-01 | 2010-06-09 | Scania CV AB (publ) | Mudguard suspension strut |
| CN201971065U (en) * | 2011-03-10 | 2011-09-14 | 北汽福田汽车股份有限公司 | Mudguard for vehicle wheel |
| CN203078227U (en) * | 2012-12-10 | 2013-07-24 | 中国第一汽车股份有限公司 | Embedded type welding axle housing |
| CN203888892U (en) * | 2014-06-03 | 2014-10-22 | 常州良旭车辆配件有限公司 | Rear-wheel fender support of heavy truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107600192B (en) | 2019-05-21 |
| CN107600192A (en) | 2018-01-19 |
| CN105172902A (en) | 2015-12-23 |
| CN107618575B (en) | 2019-05-17 |
| CN107618575A (en) | 2018-01-23 |
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