CN105619029A - Automobile drive axle housing and manufacturing technology and manufacturing mold of automobile drive axle housing - Google Patents
Automobile drive axle housing and manufacturing technology and manufacturing mold of automobile drive axle housing Download PDFInfo
- Publication number
- CN105619029A CN105619029A CN201610060493.7A CN201610060493A CN105619029A CN 105619029 A CN105619029 A CN 105619029A CN 201610060493 A CN201610060493 A CN 201610060493A CN 105619029 A CN105619029 A CN 105619029A
- Authority
- CN
- China
- Prior art keywords
- axle housing
- steel pipe
- increasing
- blank
- thick
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000005516 engineering process Methods 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 230000032683 aging Effects 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 144
- 239000010959 steel Substances 0.000 claims description 144
- 238000012856 packing Methods 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 11
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000001228 spectrum Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 8
- 230000035882 stress Effects 0.000 abstract description 7
- 230000008719 thickening Effects 0.000 abstract 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 5
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 5
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 230000006735 deficit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- HCOLPNRPCMFHOH-UHFFFAOYSA-N Prodigiosin Natural products CCCCCC1C=C(C=C/2N=C(C=C2OC)c3ccc[nH]3)N=C1C HCOLPNRPCMFHOH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- TWFGRJUTAULJPZ-USZBIXTISA-N prodigiosin Chemical compound N1=C(C)C(CCCCC)=C\C1=C/C1=NC(C=2[N]C=CC=2)=C[C]1OC TWFGRJUTAULJPZ-USZBIXTISA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Vehicle Body Suspensions (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention belongs to the technical field of automobile manufacturing and provides an automobile drive axle housing and a manufacturing technology and a manufacturing mold of the automobile drive axle housing. The manufacturing technology comprises a blanking process, a thickening process, a shifting process, a hydraulic molding process, an aging process, a finish machining process, a welding process, a drilling process and a coating process. According to the automobile drive axle housing and the manufacturing technology and the manufacturing mold of the automobile drive axle housing, by additionally arranging the thickening process, the shifting process and the hydraulic molding process, the welding positions of the automobile drive axle housing and the juncture number of parts are reduced, so that the finish machined axle housing is of a structure formed integrally; the problems of stress concentration and cold joint caused by the welding process are avoided, the finished product sealing performance of the whole axle housing is ensured, and occurring of the oil leakage phenomenon is reduced; in addition, by means of the structure formed integrally, the strength of the automobile drive axle housing can be improved, fracture is prevented, and the reliability of the whole automobile drive axle housing is improved; accordingly, the axle housing is light in weight, and the cost is reduced.
Description
Technical field
The invention belongs to field of automobile, be specifically related to a kind of automobile drive axle housing and manufacturing process, manufacture mould.
Background technology
Automobile drive axle housing is one of major part of automobile, and Drive axle housing plays a part supporting automobile load, and transfers load to wheel. Existing Drive axle housing is as shown in Figure 1, including the first gear involucrum 101 and the second gear involucrum 102 fastened mutually, therebetween main reducing gear installing hole it is provided with, two end faces of main reducing gear installing hole are connected to final drive casing packing ring 104 and rear master subtracts lid 105, and the two ends of the first gear involucrum 101 are connected to steel pipe 103; Existing this automobile drive axle housing, usually by each parts of Making mold, then passes through welding sequence and fits together. Each through being welded to connect between this structure adjacent component, being easily generated the problems such as stress concentration, rosin joint due to welding procedure self, junction is likely to result in leakage of oil, even ruptures, and causes complete vehicle fault; And the assembling of each parts is comparatively laborious, increase technological process, reduce efficiency of assembling; Simultaneously because the quantity of the parts of this structure is more, cause the number of mould to increase, increase manufacturing cost.
Present axle housing shaped by fluid pressure is also progressively beginning to use, but hydroforming process causes the thick section wall thickness of increasing excessively thin now, and intensity and reliability not can fully ensure that, the axle housing life-span is short.
Summary of the invention
It is an object of the invention to provide a kind of automobile drive axle housing and manufacturing process, manufacture mould, increase unskilled workman's sequence, skew operation and shaped by fluid pressure operation, manufacture integrated polish axle housing, reduce the welding position of automobile drive axle housing, reduce the seam quantity between part, ensure the sealing of whole axle housing finished product, reduce the generation of oil leakage phenomenon, improve the reliability of Drive axle housing.
To achieve these goals, the present invention provides following technical scheme:
The beneficial effects of the present invention is:
A kind of manufacturing process of automobile drive axle housing, including:
Step S1: blanking procedure, selects hollow metal tube, described hollow metal tube is cut to steel tube blank;
Step S2: increase unskilled workman's sequence, highly pressurised liquid is added in the inside of described steel tube blank, extruded described steel tube blank by the portion wherein, two ends of described steel tube blank simultaneously, formed and increase thick steel pipe, described increasing thick steel pipe includes increasing thick section and first steel pipe at the two ends being connected to the thick section of described increasing and the second steel pipe, the wall thickness of the thick section of described increasing is more than the wall thickness 1��2mm of described first steel pipe, and more than the wall thickness 1��2mm of described second steel pipe, second centerline collineation increasing thick centrage, the first centrage of described first steel pipe and described second steel pipe of the thick section of described increasing;
Step S3: skew operation, fixing described first steel pipe and described second steel pipe, the inside of described increasing thick steel pipe keeps the pressure of 0.5Mpa, the power being perpendicular to described first centrage is added in the side of the thick centrage of described increasing, the middle part of thick for described increasing section is pressed to the one side away from described first centrage, make the outer surface of the side being extruded of the thick section of described increasing and described first centerline parallel, and with the outer surface of described first steel pipe, the outer surface of described second steel pipe is tangent, the outer surface of opposite side protrudes to the side away from described first centrage relative to the appearance of described first steel pipe and described second steel pipe, thus forming increasing slightly offset blank,
Step S4: shaped by fluid pressure operation, slightly offsets blank by described increasing and is positioned in mould, and the thick section of described increasing is placed in the forming cavity of described mould, seals the outer end of described first steel pipe and the outer end of described second steel pipe, highly pressurised liquid is injected in the inside slightly offseting blank to described increasing, inwall until the thick section of described increasing with described forming cavity is fitted, the wall thickness of the thick section of described increasing is less than the wall thickness 1.5��2.5mm of described first steel pipe, and less than the wall thickness 1.5��2.5mm of described second steel pipe, the rounded plane of outer surface of the side of the thick section of described increasing, the distance of described circular flat and described first centrage is more than the radius of described first steel pipe, the outer surface of opposite side protrudes to the side away from described first centrage relative to the appearance of described first steel pipe and described second steel pipe, and spherically, form axle housing blank,
Step S5: aging sequence, is positioned over timeliness space by described axle housing blank and carries out Ageing Treatment;
Step S6: finishing step, increasing main installing hole, oil leak hole, passage, the tank filler sleeve of subtracting of thick section processing in described axle housing blank, formation polish axle housing;
Step S7: welding sequence, makes final drive casing packing ring and described master subtract installing hole coaxial, and described final drive casing packing ring is welded in described polish axle housing;
Step S8: drilling operating, the circumference along described final drive casing packing ring bores several screwed holes;
Step S9: coating process, polish axle housing described in application, form axle housing finished product.
Preferably, the side increasing thick section of described axle housing blank is circular flat, and opposite side is the sphere of outwardly convex, described first centrage and described second centerline collineation, and be the centrage of axle housing blank, the thick section of described increasing is symmetrical relative to the centrage of described axle housing blank; The line of the centre of sphere of the center of circle of described circular flat and described sphere, with the central axis of described axle housing blank the central point intersecting at described axle housing blank.
Preferably, the aging sequence in described step S5 is star spectra data.
Preferably, the binding face of the described final drive casing packing ring of traverse of the described screwed hole in described step S8 and described polish axle housing.
Preferably, described coating process is to described oil leak hole, described passage, described tank filler sleeve and the not application of described screwed hole.
The present invention also provides for a kind of automobile drive axle housing, including polish axle housing and final drive casing packing ring, described polish axle housing is formed in one structure, the first steel pipe and the second steel pipe including the two ends increasing thick section and be connected to the thick section of described increasing, the wall thickness of the thick section of described increasing is less than the wall thickness of described first steel pipe, and less than the wall thickness of described second steel pipe, the thick section of described increasing is provided with circular flat and the sphere relative with described circular flat, described sphere is convex to the direction away from described circular flat, and described circular flat is provided with master and subtracts installing hole; The central point of described polish axle housing subtracts on the centrage of installing hole described master, and described final drive casing packing ring is installed on described circular flat, and to subtract installing hole coaxial with described master.
Preferably, it is cylindrical hole that described master subtracts installing hole, and one side closed near described sphere of described cylindrical hole.
Preferably, oil leak hole is located at the sidewall side near ground of described Drive axle housing; Passage is located at the sidewall side away from ground of described Drive axle housing, and is provided with spacing with the axle housing central point of described Drive axle housing; Tank filler sleeve is located at the sphere of described Drive axle housing, and is positioned at the axle housing centrage side near ground of described driving axle housing.
The present invention also provides for the manufacture mould of a kind of automobile drive axle housing, including mould, described mould includes the shaping upper and the molding counterdie that interconnect, axle housing blank chamber is formed between described shaping upper and described molding counterdie, described axle housing blank chamber includes forming cavity and connects and be respectively placed in the steel pipe chamber at its two ends with described forming cavity, the thick section of increasing of axle housing blank is positioned over described forming cavity, and the first steel pipe of described axle housing blank and the second steel pipe are respectively placed in two described steel pipe chambeies.
Preferably, also including increasing roughcast tool, the increasing that described increasing roughcast tool includes interconnecting slightly is gone up mould and increases thick counterdie, and described increasing is slightly gone up and is provided with the thick chamber of increasing between mould and the thick counterdie of described increasing; Steel tube blank is positioned over described increasing and slightly goes up between mould and the thick counterdie of described increasing, and its two ends connect end pressurization augmentor and liquid injection port respectively.
The present invention increases unskilled workman's sequence, skew operation and shaped by fluid pressure operation, the profile not only making steel tube blank by increasing unskilled workman's sequence increases thick, and the two ends of steel tube blank apply pressure, make the wall thickness of the wall thickness of the thick section of the increasing wall thickness slightly larger than the first steel pipe and the second steel pipe, again through shaped by fluid pressure operation, the profile that increasing slightly offsets blank is made to increase, now the two ends owing to increasing thick skew blank do not apply pressure, increase the wall thickness wall thickness compared with the first steel pipe of thick section, the wall thickness of the second steel pipe is thin, but it is relatively larger to increase thick section section factor, thus intensity is enough, solve prior art and increase the excessively thin problem causing intensity not enough of thick section, reduce the seam quantity between the welding position of automobile drive axle housing and part, polish axle housing is made to be formed in one structure, the stress that welding procedure causes is avoided to concentrate, the problem of rosin joint, ensure the sealing of whole axle housing finished product, reduce the generation of oil leakage phenomenon, and integrated formed structure can increase the intensity of automobile drive axle housing, prevent fracture, improve the reliability of whole automobile drive axle housing, make axle housing lightweight, reduce cost, the solution of the present invention adopts integrated formed structure simultaneously, it is possible to reduce assembly process, improves efficiency of assembling, and the number of molds needed for minimizing parts machining, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art automobile drive axle housing;
Fig. 2 is the flow chart of a kind of detailed description of the invention of automobile drive axle housing manufacturing process provided by the present invention;
Fig. 3 is the structure chart of a kind of detailed description of the invention steel tube blank of automobile drive axle housing manufacturing process provided by the present invention;
Fig. 4 be a kind of detailed description of the invention of automobile drive axle housing manufacturing process provided by the present invention increase unskilled workman's sequence increases roughcast tool and steel tube blank coordinate sectional view;
Fig. 5 is the structure chart that a kind of detailed description of the invention of automobile drive axle housing manufacturing process provided by the present invention increases thick steel pipe;
Fig. 6 is the structure chart after automobile drive axle housing provided by the present invention manufactures the thick skew of increasing of a kind of detailed description of the invention of mould;
Fig. 7 is that in a kind of detailed description of the invention shaped by fluid pressure operation of automobile drive axle housing manufacturing process provided by the present invention, mould slightly offsets, with increasing, the sectional view that blank coordinates;
Fig. 8 is that automobile drive axle housing provided by the present invention manufactures the mould of a kind of detailed description of the invention of mould and the explosive view of axle housing blank;
Fig. 9 is the structure chart of a kind of detailed description of the invention polish axle housing of automobile drive axle housing provided by the present invention;
Figure 10 is the structure chart of another angle of a kind of detailed description of the invention polish axle housing of automobile drive axle housing provided by the present invention;
Figure 11 is the structure chart of a kind of detailed description of the invention axle housing finished product of automobile drive axle housing provided by the present invention.
Accompanying drawing labelling:
In FIG:
101, the first gear involucrum, the 102, second gear involucrum, 103, steel pipe, 104, final drive casing packing ring, 105, rear main subtract lid;
In Fig. 2-Figure 11:
201, steel tube blank, 202, increase thick section, the 203, first steel pipe, 204, the second steel pipe, 205, shaping upper, 206, molding counterdie, 207, forming cavity, 208, steel pipe chamber, 209, main subtract installing hole, 210, oil leak hole, 211, passage, 212, polish axle housing, 213, tank filler sleeve, 214, final drive casing packing ring, 215, screwed hole, 216, thick upper mould is increased, 217, increase thick counterdie, 218, end pressurization augmentor.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 2-Figure 11, in a kind of detailed description of the invention, the manufacturing process of a kind of automobile drive axle housing provided by the present invention, including:
Step S1: blanking procedure, selects hollow metal tube, hollow metal tube is cut to steel tube blank 201, as shown in Figure 3; First qualified raw material is selected, raw material outer surface not damaged, inside pipe wall non-corroding, not damaged, within the linearity of tubing to ensure 0.2/1000mm, qualified hollow metal pipe is cut into single times of material of axle housing, i.e. steel tube blank 201 by the model specification of Drive axle housing.
Step S2: increase unskilled workman's sequence, as shown in Figure 4, highly pressurised liquid is added in the inside of steel tube blank 201, extruded steel tube blank 201 by the portion wherein, two ends of steel tube blank 201 simultaneously, formed and increase thick steel pipe, as shown in Figure 5, increase thick steel pipe to include increasing thick section 202 and being connected to first steel pipe 203 and second steel pipe 204 at the two ends increasing thick section 202, increase the wall thickness wall thickness 1��2mm more than the first steel pipe 203 of thick section 202, and more than the wall thickness 1��2mm of the second steel pipe 204, the thick centrage of increasing of the thick section of described increasing, first centrage of described first steel pipe and the second centerline collineation of described second steel pipe. it is put into the thick upper mould 216 of increasing by steel tube blank 201 and increases between thick counterdie 217, increase thick upper mould 216 with bolt is fixing and increases thick counterdie 217, not clamping steel tube blank 201, then load onto pressurization augmentor 218 in end at the two ends of steel tube blank 201 respectively. generally, first at the closing reinforcing F=16500N of end pressurization augmentor 218, in opposite direction, extrude to middle part, then add the highly pressurised liquid of 190MPa to the inside of steel tube blank 201 from the liquid injection port at two ends, the surrounding making the middle part of steel tube blank 201 increases thick, is formed and increases thick steel pipe, so makes the interior thickness 1��2mm bigger than the thickness at two ends of increasing thick steel pipe,
Step S3: skew operation, fix the first steel pipe 203 and the second steel pipe 204, first steel pipe and the second steel pipe coaxially increase the pressure of the inside maintenance 0.5Mpa of thick steel pipe, the power being perpendicular to the first centrage is added in the side increasing thick centrage, the middle part increasing thick section 202 is pressed to the one side away from the first centrage, make to increase outer surface and first centerline parallel of the side being extruded of thick section, and with the outer surface of the first steel pipe 203, the outer surface of the second steel pipe 204 is tangent, the outer surface of opposite side protrudes to the side away from the first centrage relative to the appearance of the first steel pipe 203 and the second steel pipe 204, thus forming increasing thick skew blank blank, see Fig. 6, now, first centrage and the second centerline collineation, but increase thick centrage and become curve, not with the first centrage and the second centerline collineation,
Step S4: shaped by fluid pressure operation, increasing slightly skew blank is positioned in mould, and increase thick section 202 and be placed in the forming cavity 207 of mould, seal the outer end (outer end of the first steel pipe refers to that the first steel pipe is away from the one end increasing thick section) of the first steel pipe 203 and the outer end (outer end of the second steel pipe refers to that the second steel pipe is away from the one end increasing thick section) of the second steel pipe 204, highly pressurised liquid is injected to increasing the thick inside offseting blank, fit until increasing the thick section 202 inwall with forming cavity 207, increase the wall thickness wall thickness 1.5��2.5mm less than the first steel pipe 203 of thick section 202, and less than the wall thickness 1.5��2.5mm of the second steel pipe 204, increase the rounded plane of outer surface of the side of thick section, the distance of circular flat and described first centrage is more than the radius of the first steel pipe, generally difference 1��2mm, the outer surface of opposite side protrudes to the side away from the first centrage relative to the appearance of the first steel pipe and the second steel pipe, and spherically, form axle housing blank, as shown in Figure 7 and Figure 8, the axle housing blank chamber of shaping upper 205 and molding counterdie 206 is put into by increasing the thick blank that offsets, seal fixing by increasing the thick two ends offseting blank, film 206 under fixed-type upper mould 205 and molding, highly pressurised liquid is injected toward increasing the thick inside offseting blank, generally select the highly pressurised liquid of 210MPa, make increasing slightly offset blank to deform to the inner chamber of shaping upper 205 and molding counterdie 206, until the outside increasing thick section 202 all fits to shaping upper 205 and the inwall of molding counterdie 206, forming axle housing blank, the inner chamber of axle housing blank can hold main reducing gear.
Step S5: aging sequence, is positioned over timeliness space by axle housing blank and carries out Ageing Treatment; Preferred star spectra data processes;
Step S6: finishing step, increasing main installing hole 209, oil leak hole 210, passage 211, the tank filler sleeve 213 of subtracting of thick section 202 processing in axle housing blank, formation polish axle housing 212, as shown in Fig. 8 and Fig. 9-10;
Step S7: welding sequence, makes final drive casing packing ring 214 and master subtract installing hole 209 coaxial, final drive casing packing ring 214 is welded in polish axle housing 212;
Step S8: drilling operating, the circumference along final drive casing packing ring 214 bores several screwed holes 215, as shown in figure 11;
Step S9: coating process, application polish axle housing 212, form axle housing finished product.
Above-described embodiment increases unskilled workman's sequence, skew operation and shaped by fluid pressure operation, the profile of steel tube blank is not only made to increase by increasing unskilled workman's sequence, and the two ends of steel tube blank apply pressure, make the wall thickness of the wall thickness of the thick section of the increasing wall thickness slightly larger than the first steel pipe and the second steel pipe, again through shaped by fluid pressure operation, the profile that increasing slightly offsets blank is made to increase, now the two ends owing to increasing thick skew blank do not apply pressure, increase the wall thickness wall thickness compared with the first steel pipe of thick section, the wall thickness of the second steel pipe is thin, but it is relatively larger to increase thick section section factor, thus intensity is enough, solve prior art and increase the excessively thin problem causing intensity not enough of thick section, reduce the seam quantity between the welding position of automobile drive axle housing and part, polish axle housing 212 is made to be formed in one structure, the stress that welding procedure causes is avoided to concentrate, the problem of rosin joint, ensure the sealing of whole axle housing finished product, reduce the generation of oil leakage phenomenon, and integrated formed structure can increase the intensity of automobile drive axle housing, prevent fracture, improve the reliability of whole automobile drive axle housing, make axle housing lightweight, reduce cost, this embodiment adopts integrated formed structure simultaneously, it is possible to reduce assembly process, improves efficiency of assembling, and the number of molds needed for minimizing parts machining, reduce manufacturing cost.
Liquid injection port may be located at pressurization augmentor 218, it is also possible to is directly arranged in increasing roughcast tool.
The number of screwed hole 215 is offered as required, is generally uniformly provided with 12 along the circumference of final drive casing packing ring 214.
The outer impairment value of the outer surface of hollow metal tube is less than the first preset value, and the corrosion area of inwall pre-sets less than the 3rd less than the interior impairment value of the second preset value, inwall, and the linearity of hollow metal tube is less than the 4th preset value. By this setting ensure that minimizing correction stretch, the operation such as rust cleaning, Simplified flowsheet, and ensure the intensity of steel tube blank 201, it is prevented that various operations cause it ftracture, and then the quality of raising automobile drive axle housing.
First preset value, the second preset value, the 3rd preset value and the 4th preset value set according to the prescription of axle housing finished product. First preset value and the 3rd preset value can be pit area, it is also possible to for pit depth, it is also possible to for other impairment parameter, such as cut etc., make inside and outside surface nondestructive hinder as far as possible. Second preset value is generally as close possible to zero. 4th preset value is preferably 0.2/1000mm.
The side increasing thick section of axle housing blank is circular flat, and opposite side is the sphere of outwardly convex, described first centrage and described second centerline collineation, and be the centrage of axle housing blank, and the thick section of described increasing is relative to the centrage symmetry of described axle housing blank; The line of the centre of sphere of the center of circle of described circular flat and described sphere, with the central axis of described axle housing blank the central point intersecting at described axle housing blank.
Aging sequence in step S5 is star spectra data, and namely the temperature in timeliness space is constant temperature, is put in the constant temperature space of 150 DEG C by axle housing blank and carries out Ageing Treatment, general placement 5 hours. To ensure the timeliness effect of workpiece, it is prevented that its follow-up machining deformation is serious. Above-mentioned constant temperature space is often referred to thermostatic chamber, and star spectra data operation is the time of selected timeliness generally according to the difference of material, to discharge the internal stress of part.
Certain aging sequence can also adopt weathering.
In step S7, the neighboring excircle of final drive casing packing ring (neighboring refer to) along final drive casing packing ring 214 is welded, and to ensure the sealing of final drive casing packing ring 214 and polish axle housing 212. Welding by circumferentially limit, it is possible to increase the sealing of axle housing finished product, and weld seam or weldering bits will not interfere with main reducing gear. Can certainly weld along the inner ring periphery of final drive casing packing ring 214, or directly weld the circular flat of final drive casing packing ring 214 and polish axle housing 212 by the mode of spot welding and fit.
Screwed hole 215 in step S8 passes the binding face of final drive casing packing ring 214 and polish axle housing 212. By screwed hole 215 is extended into axle housing blank 212, after making main reducing gear install, it installs the bolt deep enough polish axle housing 212 of energy, and then ensures the reliability that main reducing gear is connected with axle housing finished product 212. Screwed hole 215 can also only be opened in final drive casing packing ring 214.
Coating process is to oil leak hole 210, passage 211, tank filler sleeve 213 and screwed hole 215 not application, to ensure being smoothed out of assembling.
The present invention also provides for a kind of automobile drive axle housing, including polish axle housing 212 and final drive casing packing ring 214, polish axle housing 212 is formed in one structure, including increasing thick section 202 and being connected to first steel pipe 203 and second steel pipe 204 at the two ends increasing thick section 202, increase the wall thickness wall thickness less than the first steel pipe 203 of thick section 202, and less than the wall thickness of the second steel pipe 203, increase thick section 202 and be provided with circular flat and the sphere relative with circular flat, sphere is convex to the direction away from circular flat, and circular flat is provided with master and subtracts installing hole 209; The central point of polish axle housing subtracts on the centrage of installing hole 209 main, and final drive casing packing ring 214 is installed on circular flat, and with main to subtract installing hole 209 coaxial.
Above-described embodiment is by being set to integrated formed structure by polish axle housing 212, reduce the seam quantity between the welding position of automobile drive axle housing and part, avoid the stress that welding procedure causes to concentrate, the problem of rosin joint, ensure the sealing of whole axle housing finished product, reduce the generation of oil leakage phenomenon, and integrated formed structure can increase the intensity of automobile drive axle housing, it is prevented that fracture, improve the reliability of whole automobile drive axle housing; This embodiment adopts integrated formed structure simultaneously, it is possible to reduce assembly process, improves efficiency of assembling; And the number of molds needed for minimizing parts machining, reduce manufacturing cost.
The main installing hole 209 that subtracts is for cylindrical hole, and one side closed near sphere of cylindrical hole, namely main subtract installing hole and is offered to sphere by circular flat, and not open-minded. This structure is led after eliminating while subtracting lid, still is able to ensure the sealing of main reducing gear to improve the sealing of whole automobile drive axle housing; Reduce processing and assembly process simultaneously, reduce production cost.
Oil leak hole 210 is located at the sidewall side near ground of Drive axle housing; Passage 211 is located at the sidewall side away from ground of Drive axle housing, and is provided with spacing with the axle housing central point of Drive axle housing; Tank filler sleeve 213 is located at the sphere of Drive axle housing, and is positioned at the axle housing centrage side near ground of Drive axle housing. It is more convenient for by this setting the connection of automobile drive axle housing and other parts, makes the space of car load arrange more reasonable. Certain oil leak hole 210, passage 211 and tank filler sleeve 213 can also be respectively arranged on other position of automobile drive axle housing.
Above-mentioned polish axle housing 212 can be processed as one molding structure by the mode of machining; Or by mould one-shot forming.
The present invention also provides for the manufacture mould of a kind of automobile drive axle housing, such as Fig. 6, including the shaping upper 205 interconnected and molding counterdie 206, axle housing blank chamber is formed between shaping upper 205 and molding counterdie 206, axle housing blank chamber includes forming cavity 207 and connects and be respectively placed in the steel pipe chamber 208 at its two ends with forming cavity 207, namely axle housing blank chamber includes forming cavity 207 and two steel pipe chambeies 208, two steel pipe chambeies 208 are connected to the two ends of forming cavity 207, and connect with forming cavity 207 respectively; The thick section 202 of increasing of axle housing blank 212 is positioned over forming cavity 207, and the first steel pipe 203 of axle housing blank and the second steel pipe 204 are respectively placed in two steel pipe chambeies 208.
Above-described embodiment forms axle housing blank chamber by shaping upper 205 and molding counterdie 206, and then manufacture the axle housing blank of integrated formed structure, polish axle housing 212 is formed again through machining, reduce the seam quantity between the welding position of automobile drive axle housing and part, avoid the stress that welding procedure causes to concentrate, the problem of rosin joint, ensure the sealing of whole axle housing finished product, reduce the generation of oil leakage phenomenon, and integrated formed structure can increase the intensity of automobile drive axle housing, prevent fracture, improve the reliability of whole automobile drive axle housing; This embodiment adopts integrated formed structure simultaneously, it is possible to reduce assembly process, improves efficiency of assembling; And only need one set of die can reduce the number of molds needed for parts machining, reduce manufacturing cost.
Manufacture mould also to include increasing roughcast tool, as shown in Figure 4, increase the increasing that roughcast tool includes interconnecting and slightly go up mould 216 and increase thick counterdie 217, increase thick upper mould 216 and increase to be provided with between thick counterdie 217 and increase thick chamber; Steel tube blank 201 is positioned over the thick upper mould 216 of increasing and increases between thick counterdie 217, and its two ends connect end pressurization augmentor 218 and liquid injection port respectively. The Forming Quality enough being made increasing thick steel pipe by employing increasing roughcast prodigiosin is better, provides high-quality matrix for subsequent handling, thus ensureing the quality of axle housing finished product.
Although the present invention is described in conjunction with above example, but the present invention is not limited to above-described embodiment, and it being only limited by the restriction of claim, it easily can be modified and change by those of ordinary skill in the art, but and without departing from the essential idea of the present invention and scope.
Claims (10)
1. the manufacturing process of an automobile drive axle housing, it is characterised in that including:
Step S1: blanking procedure, selects hollow metal tube, described hollow metal tube is cut to steel tube blank;
Step S2: increase unskilled workman's sequence, highly pressurised liquid is added in the inside of described steel tube blank, extruded described steel tube blank by the portion wherein, two ends of described steel tube blank simultaneously, formed and increase thick steel pipe, described increasing thick steel pipe includes increasing thick section and first steel pipe at the two ends being connected to the thick section of described increasing and the second steel pipe, the wall thickness of the thick section of described increasing is more than the wall thickness 1��2mm of described first steel pipe, and more than the wall thickness 1��2mm of described second steel pipe, second centerline collineation increasing thick centrage, the first centrage of described first steel pipe and described second steel pipe of the thick section of described increasing;
Step S3: skew operation, fixing described first steel pipe and described second steel pipe, the inside of described increasing thick steel pipe keeps the pressure of 0.5Mpa, the power being perpendicular to described first centrage is added in the side of the thick centrage of described increasing, the middle part of thick for described increasing section is pressed to the one side away from described first centrage, make the outer surface of the side being extruded of the thick section of described increasing and described first centerline parallel, and with the outer surface of described first steel pipe, the outer surface of described second steel pipe is tangent, the outer surface of opposite side protrudes to the side away from described first centrage relative to the appearance of described first steel pipe and described second steel pipe, thus forming increasing slightly offset blank,
Step S4: shaped by fluid pressure operation, slightly offsets blank by described increasing and is positioned in mould, and the thick section of described increasing is placed in the forming cavity of described mould, seals the outer end of described first steel pipe and the outer end of described second steel pipe, highly pressurised liquid is injected in the inside slightly offseting blank to described increasing, inwall until the thick section of described increasing with described forming cavity is fitted, the wall thickness of the thick section of described increasing is less than the wall thickness 1.5��2.5mm of described first steel pipe, and less than the wall thickness 1.5��2.5mm of described second steel pipe, the rounded plane of outer surface of the side of the thick section of described increasing, the distance of described circular flat and described first centrage is more than the radius of described first steel pipe, the outer surface of opposite side protrudes to the side away from described first centrage relative to the appearance of described first steel pipe and described second steel pipe, and spherically, form axle housing blank,
Step S5: aging sequence, is positioned over timeliness space by described axle housing blank and carries out Ageing Treatment;
Step S6: finishing step, increasing main installing hole, oil leak hole, passage, the tank filler sleeve of subtracting of thick section processing in described axle housing blank, formation polish axle housing;
Step S7: welding sequence, makes final drive casing packing ring and described master subtract installing hole coaxial, and described final drive casing packing ring is welded in described polish axle housing;
Step S8: drilling operating, the circumference along described final drive casing packing ring bores several screwed holes;
Step S9: coating process, polish axle housing described in application, form axle housing finished product.
2. the manufacturing process of automobile drive axle housing according to claim 1, it is characterized in that, the side increasing thick section of described axle housing blank is circular flat, opposite side is the sphere of outwardly convex, described first centrage and described second centerline collineation, and be the centrage of axle housing blank, the thick section of described increasing is symmetrical relative to the centrage of described axle housing blank; The line of the centre of sphere of the center of circle of described circular flat and described sphere, with the central axis of described axle housing blank the central point intersecting at described axle housing blank.
3. the manufacturing process of automobile drive axle housing according to claim 1, it is characterised in that the aging sequence in described step S5 is star spectra data.
4. the manufacturing process of automobile drive axle housing according to claim 1, it is characterised in that the described screwed hole in described step S8 passes the binding face of described final drive casing packing ring and described polish axle housing.
5. the manufacturing process of automobile drive axle housing according to claim 1, it is characterised in that described coating process is to described oil leak hole, described passage, described tank filler sleeve and the not application of described screwed hole.
6. an automobile drive axle housing, including polish axle housing and final drive casing packing ring, it is characterized in that, described polish axle housing is formed in one structure, the first steel pipe and the second steel pipe including the two ends increasing thick section and be connected to the thick section of described increasing, the wall thickness of the thick section of described increasing is less than the wall thickness of described first steel pipe, and less than the wall thickness of described second steel pipe, the thick section of described increasing is provided with circular flat and the sphere relative with described circular flat, described sphere is convex to the direction away from described circular flat, and described circular flat is provided with master and subtracts installing hole; The central point of described polish axle housing subtracts on the centrage of installing hole described master, and described final drive casing packing ring is installed on described circular flat, and to subtract installing hole coaxial with described master.
7. automobile drive axle housing according to claim 6, it is characterised in that it is cylindrical hole that described master subtracts installing hole, and one side closed near described sphere of described cylindrical hole.
8. automobile drive axle housing according to claim 7, it is characterised in that oil leak hole is located at the sidewall side near ground of described Drive axle housing; Passage is located at the sidewall side away from ground of described Drive axle housing, and is provided with spacing with the axle housing central point of described Drive axle housing; Tank filler sleeve is located at the sphere of described Drive axle housing, and is positioned at the axle housing centrage side near ground of described driving axle housing.
9. the manufacture mould of an automobile drive axle housing, it is characterized in that, including mould, described mould includes the shaping upper and the molding counterdie that interconnect, axle housing blank chamber is formed between described shaping upper and described molding counterdie, described axle housing blank chamber includes forming cavity and connects and be respectively placed in the steel pipe chamber at its two ends with described forming cavity, the thick section of increasing of axle housing blank is positioned over described forming cavity, and the first steel pipe of described axle housing blank and the second steel pipe are respectively placed in two described steel pipe chambeies.
10. the manufacture mould of automobile drive axle housing according to claim 9, it is characterized in that, also including increasing roughcast tool, the increasing that described increasing roughcast tool includes interconnecting slightly is gone up mould and increases thick counterdie, and described increasing is slightly gone up and is provided with the thick chamber of increasing between mould and the thick counterdie of described increasing; Steel tube blank is positioned over described increasing and slightly goes up between mould and the thick counterdie of described increasing, and its two ends connect end pressurization augmentor and liquid injection port respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060493.7A CN105619029B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile drive axle housing and its manufacturing process, manufacture mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060493.7A CN105619029B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile drive axle housing and its manufacturing process, manufacture mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105619029A true CN105619029A (en) | 2016-06-01 |
| CN105619029B CN105619029B (en) | 2017-11-03 |
Family
ID=56034579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610060493.7A Expired - Fee Related CN105619029B (en) | 2016-01-26 | 2016-01-26 | A kind of automobile drive axle housing and its manufacturing process, manufacture mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105619029B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903818A (en) * | 2016-06-29 | 2016-08-31 | 江西江铃底盘股份有限公司 | Forming mold for automobile drive axle housing body |
| CN108994533A (en) * | 2018-07-21 | 2018-12-14 | 河北弘凯重型机床有限公司 | A kind of vehicle rear-axle housing and its processing technology |
| CN109894877A (en) * | 2019-04-02 | 2019-06-18 | 广州中设机器人智能装备（武汉）有限公司 | A kind of axle housing automatic welding production line and its production method |
| CN112158071A (en) * | 2020-10-13 | 2021-01-01 | 北京汽车集团越野车有限公司 | Transmission system and automobile |
| CN113102624A (en) * | 2021-04-08 | 2021-07-13 | 吉林省车桥汽车零部件有限公司 | Internal expansion high-pressure forming method for special pipe of automobile axle housing |
| CN114669650A (en) * | 2021-12-21 | 2022-06-28 | 倍力汽车轻量化科技(潍坊)有限公司 | Expansion forming process for driving axle housing |
| CN114789217A (en) * | 2022-04-27 | 2022-07-26 | 广东轻量科技发展有限责任公司 | Automobile axle housing, automobile axle housing mold and forming method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2002549A1 (en) * | 1968-02-23 | 1969-10-17 | Nakamura Masanobu | |
| JPS5838256B2 (en) * | 1980-01-08 | 1983-08-22 | 工業技術院長 | Manufacturing method for automotive axle housings |
| DE4311875A1 (en) * | 1993-04-10 | 1994-10-13 | Gkn Automotive Ag | Method for the production of hollow shafts with a profile |
| JP4083613B2 (en) * | 2003-03-28 | 2008-04-30 | プレス工業株式会社 | Axle housing |
| CN102581569A (en) * | 2012-03-01 | 2012-07-18 | 青岛华瑞汽车零部件有限公司 | Machining process for light stamping and welding type driving axle housing |
| 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 |
| CN103658502A (en) * | 2012-09-26 | 2014-03-26 | 潘富荣 | Manufacturing process of integrally forged and pressed axle housing without welding seam |
-
2016
- 2016-01-26 CN CN201610060493.7A patent/CN105619029B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2002549A1 (en) * | 1968-02-23 | 1969-10-17 | Nakamura Masanobu | |
| JPS5838256B2 (en) * | 1980-01-08 | 1983-08-22 | 工業技術院長 | Manufacturing method for automotive axle housings |
| DE4311875A1 (en) * | 1993-04-10 | 1994-10-13 | Gkn Automotive Ag | Method for the production of hollow shafts with a profile |
| JP4083613B2 (en) * | 2003-03-28 | 2008-04-30 | プレス工業株式会社 | Axle housing |
| CN102581569A (en) * | 2012-03-01 | 2012-07-18 | 青岛华瑞汽车零部件有限公司 | Machining process for light stamping and welding type driving axle housing |
| 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 |
| CN103658502A (en) * | 2012-09-26 | 2014-03-26 | 潘富荣 | Manufacturing process of integrally forged and pressed axle housing without welding seam |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903818A (en) * | 2016-06-29 | 2016-08-31 | 江西江铃底盘股份有限公司 | Forming mold for automobile drive axle housing body |
| CN108994533A (en) * | 2018-07-21 | 2018-12-14 | 河北弘凯重型机床有限公司 | A kind of vehicle rear-axle housing and its processing technology |
| CN109894877A (en) * | 2019-04-02 | 2019-06-18 | 广州中设机器人智能装备（武汉）有限公司 | A kind of axle housing automatic welding production line and its production method |
| CN109894877B (en) * | 2019-04-02 | 2020-08-04 | 广州中设机器人智能装备（武汉）有限公司 | Automatic axle housing welding production line and production method thereof |
| CN112158071A (en) * | 2020-10-13 | 2021-01-01 | 北京汽车集团越野车有限公司 | Transmission system and automobile |
| CN113102624A (en) * | 2021-04-08 | 2021-07-13 | 吉林省车桥汽车零部件有限公司 | Internal expansion high-pressure forming method for special pipe of automobile axle housing |
| CN114669650A (en) * | 2021-12-21 | 2022-06-28 | 倍力汽车轻量化科技(潍坊)有限公司 | Expansion forming process for driving axle housing |
| CN114789217A (en) * | 2022-04-27 | 2022-07-26 | 广东轻量科技发展有限责任公司 | Automobile axle housing, automobile axle housing mold and forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105619029B (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105619029A (en) | Automobile drive axle housing and manufacturing technology and manufacturing mold of automobile drive axle housing | |
| CN102764808B (en) | Hydraulic forming device and method of reducing cylindrical part | |
| CN104607524B (en) | The tailor welded integral drawing forming device of a kind of large-scale curved part and method | |
| CN102327946B (en) | Manufacture the method for valve chest | |
| CN101722396A (en) | Process for repairing inner surface damages in outer cylinder and inner cylinder of mine hydraulic support column | |
| CN104827243A (en) | Wheel rim manufacturing method and wheel rims | |
| CN105033590A (en) | Machining process of valve body of large-flow cartridge valve | |
| CN112108840A (en) | Manufacturing method of light truck 80L compressed natural gas normal-temperature high-pressure gas cylinder | |
| CN205716122U (en) | A kind of flexible attachment structure of pipe fitting | |
| CN101344181A (en) | Water tap valve body and its process technique | |
| CN114472602B (en) | Hydraulic sizing method for multi-cavity special-shaped thin-wall section pipe | |
| CN103128509B (en) | A kind of integral automobile steel ring production technology | |
| CN105172902A (en) | Rear wheel splash guard supporting frame of heavy truck and machining method of rear wheel splash guard supporting frame of heavy truck | |
| CN204573202U (en) | The high antiseptic steel-plastic ball valve of combustion gas | |
| CN104070101B (en) | Heavy wall bimetallic three-way pipe cold pressing forming process | |
| CN105195637B (en) | Bimetal composite pipe liquid expansion forming feeding device and process | |
| CN106825189B (en) | The manufacturing method of automobile three-way tailpipe | |
| CN113492295A (en) | Shaping process of steel pipe with unequal wall thickness | |
| CN204726509U (en) | For the beam of vehicle | |
| CN210501668U (en) | Assembled roller without welding seam | |
| CN102886460B (en) | Overall composite mechanical push rod type bulging process for car drive axle | |
| CN114799590B (en) | Manufacturing method of front guide cylinder of large-size tubular pump | |
| CN113477779B (en) | Water injection rod assembly | |
| CN115366299B (en) | Manufacturing method of tire mold | |
| CN206889071U (en) | One kind exhaust pipe assembly and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 |