CN205009912U - Adoption chassis torsion beam that thick plate was made that varies - Google Patents

Adoption chassis torsion beam that thick plate was made that varies Download PDF

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Publication number
CN205009912U
CN205009912U CN201520785599.4U CN201520785599U CN205009912U CN 205009912 U CN205009912 U CN 205009912U CN 201520785599 U CN201520785599 U CN 201520785599U CN 205009912 U CN205009912 U CN 205009912U
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China
Prior art keywords
crossbeam
torsion beam
sides
stress area
chassis
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CN201520785599.4U
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Chinese (zh)
Inventor
陆志伟
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Zhejiang Motorbacs Technology Co Ltd
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Zhejiang Motorbacs Technology Co Ltd
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Abstract

The utility model discloses an adoption chassis torsion beam that thick plate was made that varies belongs to vehicle chassis suspension system, and it is including horizontal crossbeam in the overall width direction, the part is described for the channel bar that the cross -section is U -shaped, V -arrangement or rectangle to the crossbeam, at two longitudinal walls that are fixed with of the mutual symmetry in crossbeam both ends, the crossbeam adopts the thick plate that varies to make, and this crossbeam is the setting of arc structure, and it is regional that its both sides are the gaff, the middle little stress region that is, and the board type of crossbeam is sunken to the middle part by both sides to both sides are the arc with the junction at middle part, and the regional board thickness of above -mentioned gaff will be greater than the thick at least 2mm of the regional board of above -mentioned little stress.

Description

A kind of chassis torsion beam adopting unequal thickness plate to make
Technical field
The utility model relates to a kind of chassis torsion beam, particularly relate to a kind of chassis torsion beam adopting unequal thickness plate to make, it is increasing the distortion of original torsion beam and yield strength, is improve on the basis of Product Safety, also reduce the difficulty of processing of product simultaneously, alleviate total quality, more meet the demand of automotive light weight technology processing thus.
Background technology
Torsion beam, is called torsion beam again, and be arranged on car chassis and hang, its two ends are connected to a wheel, and it is mainly used for balancing the bob of left and right wheels, to reduce rocking of vehicle, keep the steady of vehicle.
In prior art, normally employing waits the sheet material of wall thickness to manufacture torsion beam, its concrete manufacturing process has drawing or internal high pressure forming etc., be such as in the Chinese invention patent of 201410118246.9 in the patent No., applicant Baoshan Iron & Steel Co., Ltd discloses a kind of pipe fitting torsion beam press-processing method, comprise the following steps: 1) determine pipe fitting torsion beam architectural feature, pipe fitting torsion beam is divided into interlude from middle successively to two ends, transition phase and region, three, end, and to selected characteristic cross section, each region, characteristic cross-section line is obtained according to characteristic cross-section, i.e. V-arrangement, U-shaped, rectangle, and design diel upper and lower mould with this, 2) adopt 2 ~ 5 passage substep drawing modes to form according to above-mentioned section line feature to the regional of the pipe as raw material, in forming of transition section process, insert plug to transition phase region, plug leading dimensions is less than transition phase characteristic cross-section, 3) shaping processing is carried out to pipe fitting end, in the pipe fitting adopting shaping mould to insert between diel upper and lower mould, the transition phase of shaping mould front shape size and torsion beam finished product, the shape size of end are basically identical, with this, shaping is carried out to pipe fitting end fillet and profile, thus reach predetermined torsion beam profile.
Be such as in the Chinese invention patent of 201410705725.0 in the patent No. again, applicant Xi'an Communications University discloses a kind of low pressure internal high pressure forming device of torsion beam, comprise torsion beam internal high pressure forming mould, the servo pressure control setup of Dual-motors Driving and charging loop, charging loop is communicated with the servo pressure control setup of Dual-motors Driving with torsion beam shaping dies respectively by pressure duct, torsion beam internal high pressure forming mould comprises upper die and lower die, the servo pressure control setup of Dual-motors Driving comprises pressure cylinder, piston rod in pressure cylinder is connected with sliding panel, two straight-bars are through sliding panel, two ball-screw nuts are connected on sliding panel, servomotor is connected with ball-screw, the utility model belongs to " passive internal high pressure forming ", hyperpressure is provided without the need to superelevation potential source, the fluid pressure of tubing inside is moved down by mould and produces with the sealing of tubing internal liquid, reduce the requirement to high voltage power source, reduce technology difficulty.
Torsion beam has the requirement of torsional stiffness at the torsion position of its both sides, in order to this requirement, torsion position needs to reach certain wall thickness, but in fact other parts do not need so many wall thickness, if but adopt existing several technique to manufacture torsion beam, after it is shaped, the wall thickness at each position is all equal, this is while increasing difficulty of processing and installation difficulty (internal high pressure forming needs larger Clamping force), also increase the weight of whole torsion beam, do not meet auto-industry weight-saving trend.
Utility model content
Technical problem to be solved in the utility model provides a kind of chassis torsion beam adopting unequal thickness plate to make for the above-mentioned state of the art, it is on the basis ensureing original torsional stiffness, reduce the difficulty of processing of product, alleviate total quality, more meet the demand of automotive light weight technology processing thus.
For achieving the above object, the utility model provides following technical scheme:
A kind of chassis torsion beam adopting unequal thickness plate to make, belong to automobile chassis suspension system, it includes the crossbeam being horizontally placed on overall width direction, and described crossbeam is that cross section takes the shape of the letter U, the groove rod-like members of V-arrangement or rectangle, be fixed with two trailing arms symmetrically at crossbeam two ends, its feature is:
Described crossbeam adopts unequal thickness plate to make, the curved vibrational power flow of this crossbeam, its both sides are high-stress area territory, centre is little stress area, the template of crossbeam is by two side direction medial recess, and the joint at both sides and middle part is curved, and the thickness of slab in above-mentioned high-stress area territory is greater than the thickness of slab at least 2mm of above-mentioned little stress area, and on this crossbeam, also offer at least one lightening hole, overall weight can be reduced further.
Compared with prior art, the utility model has the advantage of: can while total quality alleviates, increase the intensity of sheet material, while improve the safety of automobile, stability, also mitigate the total quality of automobile.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional torsion beam product in the utility model embodiment;
Fig. 2 is the torsion beam structural representation of Integral upset 1mm in the utility model embodiment;
Fig. 3 is the torsion beam structural representation that in the utility model embodiment, local thickeies 2mm.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 3, the present embodiment is a kind of chassis torsion beam adopting unequal thickness plate to make, belong to automobile chassis suspension system, it includes the crossbeam 1 being horizontally placed on overall width direction, described crossbeam is that cross section takes the shape of the letter U, the groove rod-like members of V-arrangement or rectangle, be fixed with two trailing arm (not shown)s symmetrically at crossbeam two ends, described crossbeam adopts unequal thickness plate to make, the curved vibrational power flow of this crossbeam, its both sides are high-stress area territory 2, centre is little stress area 3, the template of crossbeam is by two side direction medial recess, and the joint at both sides and middle part is curved, the thickness of slab in above-mentioned high-stress area territory is greater than the thickness of slab at least 2mm of above-mentioned little stress area, and on this crossbeam, also offer multiple lightening hole 4, overall weight can be reduced further.
As shown in Figure 1, this torsion beam is that now its quality is 9.337Kg not through the interval conventional products thickeied,
In order to strengthen distortion and the yield strength of torsion beam, need to thicken it, if adopt Integral upset mode general at present, as shown in Figure 2, after Integral upset 1MM, the quality of torsion beam reaches 12.35Kg.
If adopt unequal thickness plate material of the present utility model to manufacture torsion beam, as shown in Figure 3, at high-stress area territory partial thickening 2mm, the sheet material of little stress area does not thicken, and now, the total quality of sheet material is 11.08Kg.
As can be seen here, when interval thickeies 2mm, the total quality of sheet material is also less than the situation of Integral upset 1mm, and now, high-stress area territory is owing to having thickened 2mm, and its intensity will much larger than the intensity of the sheet material of Integral upset 1mm.So, adopt the advantage of the utility model torsion beam to be: while total quality alleviates, the intensity of sheet material can be increased, while improve the safety of automobile, stability, also mitigate the total quality of automobile.
In order to manufacture the torsion beam of above-mentioned unequal thickness plate, following several technique can be adopted:
1, Heat forming, namely first by high temperature, sheet material (tubing) is heat-treated, then the template being pressed into and not waiting thickness of slab is prolonged, carry out again cooling thus obtaining unequal thickness plate, this forming technology accurately can control the wall thickness at each position, but cost is higher, and more time-consuming, be not suitable for large batch of torsion beam and produce;
2, the special thickness of slab milling train such as is not adopted to carry out cold roll forming technique.Its cardinal principle is utilizing the diff-H between roll, makes the rolling plate surface out also corresponding template defining different-thickness.Last make pipe by carrying out welding by the not strip ratio-frequency welding of uniform thickness mill milling again.This manufacturing process cost is lower, and work efficiency is high, is applicable to batch manufacturing.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (2)

1. the chassis torsion beam adopting unequal thickness plate to make, belong to automobile chassis suspension system, it includes the crossbeam being horizontally placed on overall width direction, and described crossbeam is that cross section takes the shape of the letter U, the groove rod-like members of V-arrangement or rectangle, be fixed with two trailing arms symmetrically at crossbeam two ends, its feature is:
Described crossbeam adopts unequal thickness plate to make, the curved vibrational power flow of this crossbeam, its both sides are high-stress area territory, centre is little stress area, the template of crossbeam is by two side direction medial recess, and the joint at both sides and middle part is curved, the thickness of slab in above-mentioned high-stress area territory is greater than the thickness of slab at least 2mm of above-mentioned little stress area.
2. chassis according to claim 1 torsion beam, is characterized in that: on described crossbeam, also offer at least one lightening hole.
CN201520785599.4U 2015-10-12 2015-10-12 Adoption chassis torsion beam that thick plate was made that varies Active CN205009912U (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106042816A (en) * 2016-06-19 2016-10-26 浙江摩多巴克斯科技股份有限公司 Multi-weld-pass high-strength car torsion beam with unequal wall thicknesses and forming method thereof
CN108312803A (en) * 2017-01-16 2018-07-24 浙江摩多巴克斯科技股份有限公司 A kind of high-strength sealed Formula V shape chassis torsion beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106042816A (en) * 2016-06-19 2016-10-26 浙江摩多巴克斯科技股份有限公司 Multi-weld-pass high-strength car torsion beam with unequal wall thicknesses and forming method thereof
CN108312803A (en) * 2017-01-16 2018-07-24 浙江摩多巴克斯科技股份有限公司 A kind of high-strength sealed Formula V shape chassis torsion beam

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