CN202847340U - Car axle housing - Google Patents
Car axle housing Download PDFInfo
- Publication number
- CN202847340U CN202847340U CN 201220369910 CN201220369910U CN202847340U CN 202847340 U CN202847340 U CN 202847340U CN 201220369910 CN201220369910 CN 201220369910 CN 201220369910 U CN201220369910 U CN 201220369910U CN 202847340 U CN202847340 U CN 202847340U
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- axle housing
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Abstract
The middle portion of a round steel pipe is formed by inner high-pressure, two ends of the round steel pipe are pressed to reduce diameter and the middle portion is formed by compression. A through hole in the middle of the upper side of the round steel pipe is cut and processed. The car axle housing comprises a hollow body which stretches along the length direction of the body to form two end portions. The body is symmetrical with a center line which is formed by the two end portions as a center line of the body. The body is gradually shrunk from the middle to the two end portions. The portion between the two end portions is provided with a first side face and a second side face, wherein the first side face and the second side face are connected with the two end portions and parallel to each other. A through hole is formed in the middle of the first side face. A protrusion portion which protrudes toward the direction far away from the body is arranged at the position of the second side face corresponding to the through hole. The two end portions and the portion between the two end portions integrally form the body without weld joint.
Description
Technical field
The utility model relates to the product of a kind of automotive parts shaping dies and shaping.The product that particularly relates to a kind of automobile axle housing body shaping dies and shaping.
Background technology
Using in the Steel Sheet automobile axle housing in the past, be steel plate to be cut a section blanking become two blanks, two blanks are struck out respectively two arc-shaped grooved spares, cutting commissure, then with two arc-shaped grooved spares to being welded into the axle housing main body, the bonnet of burn-oning again becomes axle housing.So an axle housing will be with being welded into after the three block plate punching presses.The axle housing of producing in this way, because weld seam is long, welding quality requires height, if control improperly, is easy to occur the quality problems such as low, oil impregnate commissure fatigue life.Because three block plates will be cut out respectively blanking, so stock utilization is low, production procedure is long.
The utility model content
The purpose of this utility model is to provide a kind of production weight lighter, and intensity is higher, and productive costs is lower, and working environment is the automobile axle housing formed product of environmental protection more.
A kind of automobile axle housing that the utility model provides, has such feature: the body with hollow structure, this body forms two ends along its length direction extension, and symmetrical about the line of centers that these two ends form, this body is shrinking gradually from the centre to two ends, is in two parts between the end and has two sides all connecting two ends and be parallel to each other as the first side and the second side; The centre of the first side is provided with a through hole, and the second side is provided with one to the lug boss away from the direction projection of body corresponding to the position of through hole, and wherein, two ends and the part that is between these two ends are integrally formed as body.
Further, the automobile axle housing that the utility model provides can also comprise: two spindle noses, be separately positioned on two ends, and these two spindle noses can be formed as one with body, also can be to be welded on the body and to be integral.
Further, the automobile axle housing that provides of the utility model can also have such feature: lug boss is the circumferential edge of sphere and the step that intermediate is connected towards the body transition in the middle of outwards projection has of the centre from the second side.
The utility model effect:
The automobile axle housing that the automobile axle housing shaping dies that provides by the utility model is produced, axle housing is a complete integral body, and each connecting portion does not all have weld seam, the long weld seam that does not more parallel to the axis on the axle housing, there is not the set square weld seam yet, the product strength and stiffness improve, and production procedure is shortened, and stock utilization improves, working environment is environmental protection more, productive costs is low, and is simple to operate, easy to implement.
Description of drawings
Fig. 1 is the structural representation of the utility model automobile axle housing body in an embodiment;
Fig. 2 is the structural representation of the utility model the first middle product in an embodiment;
Fig. 3 is the utility model the first mold use scheme drawing in an embodiment;
Fig. 4 is the structural representation of the utility model the second middle product in an embodiment;
Fig. 5 is in an embodiment the second mold use scheme drawing of the utility model;
Fig. 6 is the structural representation of the utility model the 3rd middle product in an embodiment;
Fig. 7 is in an embodiment the 3rd mold use scheme drawing of the utility model;
Fig. 8 is the in an embodiment structural representation of the 4th middle product of the utility model;
Fig. 9 is the utility model the 4th mold use scheme drawing in an embodiment;
Figure 10 is the structural representation of the utility model the 5th middle product in an embodiment;
Figure 11 is the structural representation of other boss shapes of the utility model automobile axle housing body in an embodiment.
Figure 12 is the structural representation with the automobile axle housing body of spindle nose of the utility model in variation.
The specific embodiment
With reference to the accompanying drawings the specific embodiment of the present utility model is described in detail.
Fig. 1 is the structural representation of the utility model automobile axle housing body in an embodiment.As shown in Figure 1, the automobile axle housing of present embodiment 10 is made of body, and this body is made of hollow bulb 11 and lug boss 12.Hollow bulb 11 extends and forms two ends along its length direction, and the line of centers that forms about these two ends is symmetrical, is in two parts between the end and has and all connect two ends and the first side that is parallel to each other and the second side.
The centre of the first side is provided with a through hole, and when axle housing held automotive rear axle differential gear and retarder, this through hole was used.Lug boss 12 is on the position corresponding to described through hole of the second side, outwards projection.This lug boss 12 consists of this sphere by the sphere of centre and around sphere with the surrounding that the second side is connected.
Because this hollow bulb 11 and lug boss 12 are to be shaped with a round steel pipe, so do not have weld seam in the bottom of hollow bulb 11.Namely, there is not splicing welding joint at the edge of the lug boss 12 of the second side yet yet.The upper and lower of hollow bulb 11 is also without any along its length splicing welding joint.
It is wide that width is compared in the central area part of hollow bulb 11 and two ends, and this hollow bulb 11 from the center area part to two ends shrinking gradually.
In the present embodiment, through hole is circular hole, but is not restricted to present embodiment, and reality also can be as required, and through hole is notched circular hole.
In sum, on axle housing of the present utility model without any splicing welding joint.
Fig. 2 is the structural representation of the utility model the first middle product 1 in an embodiment.As shown in Figure 2, engineering step 1: round steel pipe is cut into the first middle product 1, and the external diameter of this first middle product 1 is D1, and internal diameter is the round steel pipe of d1, and length is L.D1, d1, L are by the required decision of product.
In the engineering step 1 of present embodiment, the first middle product 1 usefulness sawing machine incising circular steel pipe obviously can also come the incising circular steel pipe with other modes to the length L of the automobile axle housing that needs to make.
Engineering step 2: with obtain after the cutting in the engineering 1 first in the middle of product 1 in the first mould, carry out internal high pressure forming to be molded as shape be product 2 in the middle of second.
Fig. 3 is the utility model the first mold use scheme drawing in an embodiment.As shown in Figure 3, the first mould, the first die 31(with first die cavity of formation closed together is upper cavity die) and the second die (being lower cavity die) 32, and two drifts 33 that can cover respectively the two ends of described the first die cavity are denoted as the first drift (being left drift 33) and the second drift (being right drift 33), the axle center of these two drifts 33 all is provided with the through hole of a circulation highly pressurised liquid, die cavity is to be that radius is D22 by the centre, length is the great circle cylindricality of H, two ends all are that radius is the small cylindrical of D2, two truncated cones that certain distance forms are stretched with the cone angle of 60 ~ 100 degree respectively in two ends along big column to two ends, and with the circular arc formation of these two truncated cones with small cylindrical and cylindrical phase transition broad in the middle, wherein, D22 is 1.3 ~ 1.6 times of D1;
Fig. 4 is the structural representation of the utility model the second middle product in an embodiment.As shown in Figure 4, product 2 Central Symmetries in the middle of second, by the centre be the big column two ends be the internal diameter external diameter all identical small column consist of, the external diameter of big column equals D22, length equals H, stretch certain distance to both sides with the cone angle A of 60 ~ 100 degree respectively along the two ends of this big column and form two frustums of a cone, the small column of these two frustums of a cone by circular arc and two ends be connected the cylinder transition and be connected, the external diameter of small column is D2, internal diameter is d2, and this D22 is 1.3 ~ 1.6 times of D1.
Engineering step 3: the second middle product 2 that obtains in the engineering step 2 is put into the second mould its internal high pressure forming is molded as the 3rd middle product 3.
Fig. 5 is in an embodiment the second mold use scheme drawing of the utility model.As shown in Figure 5, the 3rd die 51(that the second mould has second die cavity of formation closed together is upper cavity die) and the 4th die 52(be lower cavity die), and two drifts 53 that can cover respectively the two ends of described the second die cavity are denoted as respectively the 3rd drift (being left drift 53) and the 4th drift (being right drift 53), the axle center of these two drifts all is provided with the through hole of a circulation highly pressurised liquid, the second die cavity is spherical corresponding to the position of great circle cylindricality, is a whole circular arc corresponding to the position of truncated cone and above-mentioned circular arc.
The second middle product 2 is put into lower cavity die 52, and press is descending, product 2 in the middle of upper cavity die 51 compresses second, and left and right drift 53 moves ahead, thus product 2 seals up two end in the middle of inserting second.Inject the highly pressurised liquid of 45-75MPa from the through hole of left and right drift 53, left and right drift 53 continues to move ahead, and promotes tube wall, along the inward feeding of tube axis direction.Under the effect of inner high voltage and axial thrust, pipe stage casing material begins the plastic expansion distortion, and is again mobile outward, until fill up die cavity, being shaped obtains the 3rd middle product 3.
Fig. 6 is the structural representation of the utility model the 3rd middle product 3 in an embodiment.As shown in Figure 6, in the middle of the 3rd product 3 be by the big column of product 2 in the middle of second by internal high pressure forming for outside projection for spherical, the frustum of a cone and above-mentioned circular arc become as a whole circular arc and the centrosymmetric product that forms.
Engineering step 4: whole circular arc and the two side taper platforms of axle housing pars intermedia are stated in the pressing residence, and the shrinking small column is the needed shape of automobile axle housing, thereby so that the 3rd middle product 3 becomes the 4th middle product 4.
Fig. 7 is in an embodiment the 3rd mold use scheme drawing of the utility model.As shown in Figure 7, the 3rd mould, having the first module 71(is upper module), the second module 72(is lower module), and at least two group have the die group of the 5th die (being left die) and the 6th die (being right die), this first module and the second module be closed, and to form one be the 3rd cavity corresponding to described spherical in described the second die cavity, the shape of the left die of each group and the hollow structure of right die all is that the position from the aperture of minimum begins the truncated cone that the taperings with 40 ~ 60 degree extend, and the shape at this place, minimum-value aperture is corresponding to the needed shape of described automobile axle housing.
The 3rd middle product 3 that obtains in the engineering step 3 is put into lower module 72, and press is descending, product 3 in the middle of upper module 71 compresses, the left and right die 73 of first group of die group moves ahead, with two end shrinkings, left and right die 73 retreats, and changes the left and right die 73 of the second die group; The left and right die 73 of the second die group moves ahead again, with the further shrinking of two ends, analogizes in proper order through shrinking repeatedly, until reach till product required form and the size.
Wherein, the minimum-value aperture in first group of die group is D7, and this D7 is 85 ~ 90% of described D1, and the minimum-value aperture in all die groups afterwards all is the 90-95% of last group of die group minimum diameter, and comes with above-mentioned tapering 40 ~ 60 degree expansions.
Fig. 8 is the in an embodiment structural representation of the 4th middle product 4 of the utility model.As shown in Figure 8, product 4 is tapering at 40 ~ 60 taper platform for the whole circular arc of product 3 in the middle of the compression the 3rd in the middle of the 4th, and the described small column of shrinking, is configured as that the needed shape of described automobile axle housing gets.
Engineering step 5: product 4 makes it become the 5th middle product 5 in the middle of suppressing the described the 4th.
Fig. 9 is the utility model the 4th mold use scheme drawing in an embodiment.As shown in Figure 9, it is upper cavity die that the 4th mould has the 7th die 91() and the 8th die 92(be lower cavity die), the shape of closed the 4th cavity that forms of the 7th die and the 8th die is corresponding to the shape of whole described automobile axle housing.
The 4th middle product 4 that obtains in the engineering step 4 is put into lower cavity die 92, and press is descending, and product 4 in the middle of upper cavity die 91 compressions closes product and lower cavity die 92 die cavity notes, is shaped to obtain the 5th middle product.
Figure 10 is the structural representation of the utility model the 5th middle product in an embodiment.As shown in figure 10, product 5 has two ends in the longitudinal direction for product 4 in the middle of the compacting the 4th becomes it in the middle of the 5th, and the product of the line of centers symmetry that forms about these two ends, in the middle of the 5th product 5 from the centre to these two ends shrinking gradually, and be in two parts between the end and have two sides that all connect two ends and be parallel to each other, the centre of one of them side has an outwards lug boss of projection.
Engineering step 6 is that another side with product 5 in the middle of the 5th is that cut the centre of upper side, forms the required through hole of automobile axle housing, and product 5 in the middle of the 5th can be configured as needs the automobile axle housing body 10 made in the present embodiment.
More than the specific embodiment of the present utility model is illustrated, but the utility model is as limit, only otherwise break away from aim of the present utility model, the utility model can also have various variations, these is not got rid of from scope of the present utility model.
For example, in the present embodiment, the lug boss 12 of axle housing is similar hemispheric, but the boss shapes of axle housing is not as limit.Figure 11 is the structural representation of other boss shapes of expression automobile axle housing body of the present utility model.As shown in figure 11, the lug boss of axle housing can also be other shapes such as segment-shaped that intermediate projections, both sides reduce.
Variation
In the above-described embodiments, axle housing is not with spindle nose, but the shape of axle housing is not as limit.Figure 12 is the structural representation with the shape of the automobile axle housing body of spindle nose in this variation.As shown in figure 12, axle housing also can be with spindle nose 13.In the forming process, as long as the length L of the first middle product 1 is lengthened, when shown in Figure 7 two proper crowded shrinkings are shaped the 4th middle product 4, increase left and right die group number, increase shrinking shaping number of times, two end shrinkings to the required spindle nose size of product, can be obtained the automobile axle housing body with spindle nose as shown in figure 12, and obviously spindle nose and automobile axle housing body are formed as one.
Embodiment effect and effect
In sum, the automobile axle housing that the automobile axle housing shaping dies that present embodiment provides is produced, axle housing are a complete integral body, each connecting portion does not all have weld seam, the long weld seam that does not more parallel to the axis on the axle housing does not have the set square weld seam yet, and the product strength and stiffness improve, production procedure is shortened, stock utilization improves, and working environment is environmental protection more, and productive costs is low, simple to operate, easy to implement.
Above-mentioned embodiment is not used for limiting protection domain of the present utility model as preferred embodiment of the present utility model.
Claims (3)
1. automobile axle housing is characterized in that having:
The body of hollow structure,
This body is along its length direction extension and form two ends, and symmetrical about the line of centers of these two ends formation,
This body is shrinking gradually from the centre to two described ends, is in two parts between the described end and has two sides all connecting two described ends and be parallel to each other as the first side and the second side; The centre of described the first side is provided with a through hole, and described the second side is provided with one to the lug boss away from the direction projection of described body corresponding to the position of described through hole,
Wherein, two described ends and the described part that is between these two ends are integrally formed as described body.
2. automobile axle housing according to claim 1 characterized by further comprising:
Two spindle noses are separately positioned on two described ends, and these two spindle noses are formed as one with described body.
3. automobile axle housing according to claim 1 is characterized in that:
Described lug boss is for sphere in the middle of having from the outside projection in the centre of described the second side and with the circumferential edge of intermediate towards the step of described body transition connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369910 CN202847340U (en) | 2012-07-27 | 2012-07-27 | Car axle housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369910 CN202847340U (en) | 2012-07-27 | 2012-07-27 | Car axle housing |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145703 Division CN203209512U (en) | 2012-07-27 | 2012-07-27 | Automobile axle housing forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202847340U true CN202847340U (en) | 2013-04-03 |
Family
ID=47978574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369910 Expired - Lifetime CN202847340U (en) | 2012-07-27 | 2012-07-27 | Car axle housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202847340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568724A (en) * | 2012-07-27 | 2014-02-12 | 上海永太汽车零部件厂 | Automobile axle housing, automobile axle housing forming die and automobile axle housing forming method |
-
2012
- 2012-07-27 CN CN 201220369910 patent/CN202847340U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568724A (en) * | 2012-07-27 | 2014-02-12 | 上海永太汽车零部件厂 | Automobile axle housing, automobile axle housing forming die and automobile axle housing forming method |
| CN103568724B (en) * | 2012-07-27 | 2015-11-18 | 上海永太汽车零部件厂 | Automobile axle housing and automobile axle housing shaping dies and automobile axle housing manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 202156 Beixin Highway 418, Chongming County, Shanghai Patentee after: SHANGHAI YONGTAI AUTO PARTS Co.,Ltd. Address before: 202156 Beixin Highway 418, Chongming County, Chongming County, Shanghai Patentee before: Shanghai Yongtai Automotive Component Factory |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190513 Address after: Room 402, Zone E, 921 Lane 2, Xinshen Road, Xinhe Town, Chongming District, Shanghai 202156 Patentee after: SHANGHAI JIANGHAN AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 202156 Beixin Highway 418, Chongming County, Chongming County, Shanghai Patentee before: SHANGHAI YONGTAI AUTO PARTS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |