CN108162680B - Rim manufacturing system, rim and manufacturing method thereof - Google Patents
Rim manufacturing system, rim and manufacturing method thereof Download PDFInfo
- Publication number
- CN108162680B CN108162680B CN201810097868.6A CN201810097868A CN108162680B CN 108162680 B CN108162680 B CN 108162680B CN 201810097868 A CN201810097868 A CN 201810097868A CN 108162680 B CN108162680 B CN 108162680B
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- roll forming
- lower die
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 58
- 238000005096 rolling process Methods 0.000 claims abstract description 139
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 60
- 238000003466 welding Methods 0.000 claims description 21
- 239000011324 bead Substances 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 238000009683 ultrasonic thickness measurement Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B21/00—Rims
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- 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
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/30—Making other particular articles wheels or the like wheel rims
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
- B60B2310/224—Shaping by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/60—Surface treatment; After treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The system comprises a frame, wherein a conveying platform for conveying the rim is arranged on the frame, a plurality of rim rolling mechanisms are sequentially arranged on one side of the conveying platform from front to back, each rim rolling mechanism is provided with a rotating base for installing a lower die of a rim rolling die and an upper die rotating shaft for installing an upper die of the rim rolling die, a jacking unit is arranged on the rotating base, a lower die rotating shaft for installing the lower die of the rim rolling die is transversely arranged on the jacking unit, and the lower die rotating shaft is arranged right below the upper die rotating shaft; the manufacturing device reasonably integrates a plurality of rim roll forming procedures on one piece of equipment, effectively improves the rim production efficiency, simultaneously produces rims with closed annular curled edges, strengthens the strength of the rims, plays a good supporting role on tires, and can avoid the problems that the rims are broken or the tires are separated.
Description
Technical Field
The present invention relates to a vehicle component processing apparatus, and more particularly, to a rim manufacturing system, a rim manufactured by the manufacturing system, and a method for manufacturing the rim.
Background
The wheels are important parts of the automobile and are also important bearing parts, and the axles transmit the force to the tires through the wheels and then to the ground. The steel tubeless wheel has the advantages of good heat dissipation performance, mature manufacturing process, good balance, high material utilization rate, safety and the like, and is still the most widely used wheel model in the global scope at present.
However, the tubeless wheel has the defects that the rim is easy to deform and collapse to cause accidents such as tire removal, and in order to solve the problem, the current common practice in society is to thicken the rim material to prevent the rim from deforming, but the weight of the thickened material product is increased, which is contrary to the thinking that the weight of the automobile and various related products of the automobile is required to be reduced in the global scope.
Disclosure of Invention
The invention aims to solve the technical problem of providing a manufacturing system for a special rim, which has reasonable design, high rolling efficiency and strong shock resistance and can be used for manufacturing the special rim.
Another technical problem to be solved by the invention is to provide a manufacturing method for manufacturing the special rim by the manufacturing system for the special rim.
Another technical problem to be solved by the present invention is to provide a special rim manufactured by the manufacturing system of the special rim.
The technical problems to be solved by the invention are realized by the following technical proposal. The invention relates to a manufacturing system of a special rim, which comprises a frame, wherein a conveying platform for conveying the rim is arranged on the frame, a plurality of rim rolling mechanisms are sequentially arranged on one side of the conveying platform from front to back, each rim rolling mechanism is provided with a rotating base for installing a lower die of a rim rolling die and an upper die rotating shaft for installing an upper die of the rim rolling die, a jacking unit is arranged on the rotating base, a lower die rotating shaft for installing the lower die of the rim rolling die is transversely arranged on the jacking unit, and the lower die rotating shaft is arranged right below the upper die rotating shaft;
a primary roll-forming die, a secondary roll-forming die, a tertiary roll-forming die, a quaternary roll-forming die, a fifth roll-forming die for forming a closed annular structure at the rim of the rim and an expansion finishing die are respectively arranged on the rim roll-forming mechanism arranged from the front end to the rear end of the conveying platform;
the primary roll forming die, the secondary roll forming die, the tertiary roll forming die, the quaternary roll forming die and the quintic roll forming die comprise an upper die and a lower die, and a plurality of straight section parts for forming a bead seat matched with the tire on the rim are arranged on the upper die and the lower die;
the three-time rolling die comprises a three-time rolling upper die and a three-time rolling lower die, wherein the three-time rolling upper die is also provided with an upper inclined surface part for forming a downward inclined surface at the rim of the rim, and the three-time rolling lower die is also provided with a lower inclined surface part matched with the upper inclined surface part;
the four-roll forming die comprises a four-roll forming upper die and a four-roll forming lower die, wherein the four-roll forming upper die is also provided with an upper vertical part for rolling down an inclined plane to form a vertical plane, and the four-roll forming lower die is also provided with a lower vertical part matched with the upper vertical part;
the five-time rolling die comprises a five-time rolling upper die and a five-time rolling lower die, wherein the five-time rolling upper die is also provided with an upper arc-shaped groove which is used for inwards curling a downward vertical rim to form an annular structure, and the five-time rolling lower die is also provided with a lower arc-shaped groove matched with the upper arc-shaped groove.
The technical problem to be solved by the invention can be further solved by the following technical scheme, for the manufacturing system of the special rim, the upper die of the rim roll forming die and the lower die of the rim roll forming die are both provided with mounting grooves, and the upper die rotating shaft and the lower die rotating shaft are both provided with mounting lugs which are clamped with the mounting grooves.
The technical problem to be solved by the invention can be further solved by the following technical scheme, for the manufacturing system of the special rim, the rim roll-forming mechanisms on two sides of each upper die rotating shaft are also provided with positioning rollers matched with the rim, and the positioning rollers are arranged on the rim roll-forming mechanisms through the telescopic units.
The technical problem to be solved by the invention can be further solved by the following technical scheme, and for the manufacturing system of the special rim, the jacking unit comprises a jacking cylinder, and the upper die rotating shaft is arranged at the jacking end of the jacking cylinder.
The technical problem to be solved by the invention can be further solved by the following technical scheme, and for the manufacturing system of the special rim, a welding seam detection device, a thickness detection device and a rim flaw detection device for checking in the rim manufacturing process are also arranged on the frame on the same side of the rim rolling mechanism; the welding seam detection device is arranged at the front side of the rim roll forming mechanism provided with the primary roll forming die, the thickness detection device is arranged at the front side of the rim roll forming mechanism provided with the tertiary roll forming die, and the rim flaw detection device is arranged at the rear side of the rim roll forming mechanism provided with the five-time roll forming die; the thickness detection device is an ultrasonic thickness measurement device, the ultrasonic thickness measurement device is provided with a rim placing seat, a plurality of ultrasonic detection heads are uniformly arranged on the rim placing seat in a rotating manner in the circumferential direction, and the lengths of the ultrasonic detection heads are consistent with the widths of rims; the rim flaw detection device is a radiographic inspection device, and the radiographic inspection device comprises a rotary flaw detection platform and a radiographic inspection head arranged on the rotary flaw detection platform.
The technical problem to be solved by the invention can be further solved by the following technical scheme, namely, a manufacturing method of the special rim, which adopts the manufacturing system of the special rim to manufacture the special rim, and comprises the following steps:
(1) Cutting, rounding and upsetting raw materials for manufacturing the rim, butt welding and flaring the raw materials to form a primary rim through a welding process, detecting a welding seam of the obtained primary rim by using a welding seam detection device, and conveying the primary rim qualified in detection to a conveying platform for conveying to the next process;
(2) The conveying platform conveys the primary rim to the first rolling mechanism, the primary rim is rolled by utilizing a primary rolling die, and a wheel groove matched with the tire is formed on the primary rim;
(3) The conveying platform conveys the primary rim to the second rolling mechanism, the secondary rolling die is utilized to roll the rim after the primary rolling die rolls, a straight section matched with the tire and a tire bead seat are further formed on the wheel groove, and then a thickness detection device is utilized to detect whether the thicknesses of the obtained rim are uniform or not, and the rim which is qualified in detection is conveyed to the next procedure;
(4) The primary rim is conveyed to a third rolling mechanism by a conveying platform, the primary rim is sleeved on a third rolling lower die manually, the third rolling lower die is propped up to a third rolling upper die through a jacking unit, then the third rolling upper die and the third rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, various surfaces of the rim after the rolling of the second rolling die are rolled to a specified size, and the rim is rolled to an inclined surface inclined towards the lower side;
(5) The conveying platform conveys the primary rim to a fourth rolling mechanism, the primary rim is sleeved on a fourth rolling lower die manually, the fourth rolling lower die is propped up to a fourth rolling upper die through a jacking unit, then the fourth rolling upper die and the fourth rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and the inclined surface of the rim is rolled further to enable the inclined surface to be in a downward vertical shape;
(6) The primary rim is conveyed to a fifth roll forming mechanism by a conveying platform, the primary rim is sleeved on a five-time roll forming lower die manually, the five-time roll forming lower die is propped up to a five-time roll forming upper die through a jacking unit, then the five-time roll forming upper die and the five-time roll forming lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and a downward vertical rim formed on the rim is curled inwards to form a closed annular structure;
(7) Detecting whether cracks and air holes exist at each part of the obtained rim by using a rim flaw detection device, and conveying the rim which is qualified in detection to the next working procedure;
(8) The conveying platform conveys the primary rim to a sixth roll forming mechanism, and the rim subjected to roll forming of the five-time roll forming die is subjected to expansion finishing through an expansion finishing die;
(9) And (3) performing planing, rolling and cutting process treatment on the rim obtained in the step (8), then performing manual polishing, finally performing air tightness test, and punching a valve hole to obtain a rim finished product.
The technical problem to be solved by the invention can be further solved by the following technical scheme, and for the manufacturing method of the special rim, the downward inclination angle of the inclined plane is 20-25 degrees.
The technical problem to be solved by the invention can be further solved by the following technical scheme, namely the special rim is manufactured by adopting the manufacturing system of the special rim, the rim comprises a rim main body, and the edge of the rim main body is provided with a curled edge designed in a closed annular structure.
The technical problem to be solved by the invention can be further solved by the following technical scheme, and for the special rim, the ratio of the diameter of the curled edge designed by the closed annular structure to the diameter of the rim is 1:20-1:30.
Compared with the prior art, the production method has the advantages that the production of special rims is carried out through the assembly line operation of a plurality of rolling mechanisms, defective products are detected by matching with detection equipment, the production precision and the production consistency of the rims are ensured, and meanwhile, the production efficiency of the rims is effectively improved; the produced special rim has a closed annular curled edge, plays a good supporting role on the tire, ensures that the wheel is not easy to deform, effectively solves the problems of air leakage caused by the breakage or deformation of the rim and the tire detachment phenomenon caused by serious occurrence of severe occurrence of the tire detachment phenomenon, and simultaneously solves the tire detachment problem in the process of vehicle sharp turning. The manufacturing device reasonably integrates a plurality of rim roll forming procedures on one piece of equipment, effectively improves the rim production efficiency, simultaneously produces rims with closed annular curled edges, strengthens the strength of the rims, plays a good supporting role on tires, and can avoid the problems that the rims are broken or the tires are separated.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention;
FIG. 2 is a schematic view of a first stage structure of the present invention;
FIG. 3 is a schematic view of a second stage structure of the present invention;
FIG. 4 is a schematic view of a third segment structure of the present invention;
FIG. 5 is a schematic view of a three-roll mold structure according to the present invention;
FIG. 6 is a schematic diagram of a four-roll die structure according to the present invention;
FIG. 7 is a schematic diagram of a five-roll mold structure according to the present invention;
FIG. 8 is a schematic view of the structure of the present invention after three roll forming steps for manufacturing a special rim;
FIG. 9 is a schematic view of the structure of the present invention after four roll forming for manufacturing a special rim;
fig. 10 is a schematic view of the structure of the present invention after five roll forming steps for manufacturing a special rim.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 10, a manufacturing system of a special rim comprises a frame, wherein a conveying platform 1 for conveying the rim is arranged on the frame, a plurality of rim rolling mechanisms are sequentially arranged on one side of the conveying platform 1 from front to back, each rim rolling mechanism is provided with a rotating base for installing a lower die of a rim rolling die and an upper die rotating shaft for installing an upper die of the rim rolling die, a jacking unit is arranged on the rotating base, a lower die rotating shaft for installing the lower die of the rim rolling die is transversely arranged on the jacking unit, and the lower die rotating shaft is arranged right below the upper die rotating shaft;
a primary roll-forming die, a secondary roll-forming die, a tertiary roll-forming die, a quaternary roll-forming die, a five-time roll-forming die for forming a closed annular structure at the rim of the rim and an expansion finishing die are respectively arranged on a rim roll-forming mechanism arranged from the front end to the rear end of the conveying platform 1;
the primary roll forming die, the secondary roll forming die, the tertiary roll forming die, the quaternary roll forming die and the quintic roll forming die comprise an upper die and a lower die, and a plurality of straight section parts for forming a bead seat matched with the tire on the rim are arranged on the upper die and the lower die;
the triple roll forming die comprises a triple roll forming upper die 18 and a triple roll forming lower die 19, wherein an upper inclined surface part 20 for forming a downward inclined surface at the rim of the rim is further arranged on the triple roll forming upper die 18, and a lower inclined surface part 21 matched with the upper inclined surface part 20 is further arranged on the triple roll forming lower die 19;
the four-roll forming die comprises a four-roll forming upper die 22 and a four-roll forming lower die 23, wherein an upper vertical part 24 for rolling the inclined surface downwards and forming a vertical surface is further arranged on the four-roll forming upper die 22, and a lower vertical part 25 matched with the upper vertical part 24 is further arranged on the four-roll forming lower die 23;
the five-time roll forming die comprises a five-time roll forming upper die 26 and a five-time roll forming lower die 27, an upper arc-shaped groove 28 which is used for inwards curling a downward vertical rim to form an annular structure is further arranged on the five-time roll forming upper die 26, and a lower arc-shaped groove 29 which is matched with the upper arc-shaped groove 28 is further arranged on the five-time roll forming lower die 27.
The upper die and the lower die of the rim roll forming die are respectively provided with a mounting groove, mounting lugs clamped with the mounting grooves are respectively arranged on the upper die rotating shaft and the lower die rotating shaft, the mounting grooves and the mounting lugs are convenient for the rim roll forming upper die and the rim roll forming lower die to be better mounted on the upper die rotating shaft and the lower die rotating shaft, and the rim roll forming upper die and the rim roll forming lower die are driven by the upper die rotating shaft and the lower die rotating shaft to roll the roll rim.
The rim roll forming mechanisms on two sides of the rotating shaft of each upper die are also provided with positioning rollers matched with the rims, and the positioning rollers are arranged on the rim roll forming mechanisms through telescopic units. The telescopic unit is a telescopic cylinder, and the positioning idler wheel is arranged at the output end of the telescopic cylinder through a buffer spring and used for positioning and propping up a rim arranged on a lower die rotating shaft.
The jacking unit comprises a jacking oil cylinder, and the upper die rotating shaft is arranged at the jacking end of the jacking oil cylinder.
The frame on the same side of the rim rolling mechanism is also provided with a welding seam detection device 7, a thickness detection device 10 and a rim flaw detection device 14 which are used for checking in the rim manufacturing process; the welding seam detection device 7 is arranged at the front side of the rim roll forming mechanism provided with the primary roll forming die, the thickness detection device 10 is arranged at the front side of the rim roll forming mechanism provided with the tertiary roll forming die, and the rim flaw detection device 14 is arranged at the rear side of the rim roll forming mechanism provided with the five-time roll forming die; the thickness detection device 10 is an ultrasonic thickness measurement device, the ultrasonic thickness measurement device is provided with a rim placement seat, a plurality of ultrasonic detection heads are uniformly arranged on the rim placement seat in a rotating manner in the circumferential direction, and the lengths of the ultrasonic detection heads are consistent with the widths of rims; the rim flaw detection device 14 is a radiographic inspection device, and the radiographic inspection device comprises a rotary flaw detection platform and a radiographic inspection head arranged on the rotary flaw detection platform.
A method for manufacturing a special rim adopts the special rim manufacturing system provided by the application to manufacture the special rim, and comprises the following steps:
(1) Cutting, rounding and upsetting raw materials for manufacturing the rim, butt welding and flaring the raw materials to form a primary rim through a welding process, detecting a welding seam of the obtained primary rim by using a welding seam detection device, and conveying the primary rim qualified in detection to a conveying platform for conveying to the next process;
(2) The conveying platform conveys the primary rim to the first rolling mechanism, the primary rim is rolled by utilizing a primary rolling die, and a wheel groove matched with the tire is formed on the primary rim;
(3) The conveying platform conveys the primary rim to the second rolling mechanism, the secondary rolling die is utilized to roll the rim after the primary rolling die rolls, a straight section matched with the tire and a tire bead seat are further formed on the wheel groove, and then a thickness detection device is utilized to detect whether the thicknesses of the obtained rim are uniform or not, and the rim which is qualified in detection is conveyed to the next procedure;
(4) The primary rim is conveyed to a third rolling mechanism by a conveying platform, the primary rim is sleeved on a third rolling lower die manually, the third rolling lower die is propped up to a third rolling upper die through a jacking unit, then the third rolling upper die and the third rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, various surfaces of the rim after the rolling of the second rolling die are rolled to a specified size, and the rim is rolled to an inclined surface inclined towards the lower side;
(5) The conveying platform conveys the primary rim to a fourth rolling mechanism, the primary rim is sleeved on a fourth rolling lower die manually, the fourth rolling lower die is propped up to a fourth rolling upper die through a jacking unit, then the fourth rolling upper die and the fourth rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and the inclined surface of the rim is rolled further to enable the inclined surface to be in a downward vertical shape;
(6) The primary rim is conveyed to a fifth roll forming mechanism by a conveying platform, the primary rim is sleeved on a five-time roll forming lower die manually, the five-time roll forming lower die is propped up to a five-time roll forming upper die through a jacking unit, then the five-time roll forming upper die and the five-time roll forming lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and a downward vertical rim formed on the rim is curled inwards to form a closed annular structure;
(7) Detecting whether cracks and air holes exist at each part of the obtained rim by using a rim flaw detection device, and conveying the rim which is qualified in detection to the next working procedure;
(8) The conveying platform conveys the primary rim to a sixth roll forming mechanism, and the rim subjected to roll forming of the five-time roll forming die is subjected to expansion finishing through an expansion finishing die;
(9) And (3) performing planing, rolling and cutting process treatment on the rim obtained in the step (8), then performing manual polishing, finally performing air tightness test, and punching a valve hole to obtain a rim finished product.
The downward inclination angle of the inclined plane is 20-25 degrees, and the downward inclination angle of the inclined plane is 25 degrees, so that the subsequent process is more facilitated.
The manufacturing system of the manufacturing system is sequentially provided with a rim shearing plate mechanism 2, a rim circle mechanism 3, a rim butt welding mechanism 4, a slag planing end cutting mechanism 5, a flaring mechanism 6, a welding seam detection device 7, a primary rolling mechanism 8, a secondary rolling mechanism 9, a thickness detection device 10, a tertiary rolling mechanism 11, a quaternary rolling mechanism 12, a quintic rolling mechanism 13, a rim flaw detection device 14, an expansion finishing mechanism 15, an airtight detection mechanism 16 and a punching valve hole mechanism 17 from front to back, the whole rim production process is to firstly shear a raw material into a rim, then to carry out rim circle, then to sequentially carry out rim butt welding, slag planing, rolling, end cutting and water cooling groove cooling, then to carry out rolling, the rolling process is to firstly flare, then to sequentially carry out primary rolling gate, secondary rolling, tertiary rolling, quintic rolling and expanding, then to carry out airtight experiment and punching valve hole mechanism 17, and finally to polish, thus obtaining a rim finished product.
A special rim manufactured by the manufacturing system of the special rim provided by the application comprises a rim body 30, wherein the edge of the rim body 30 is provided with a curled edge 33 designed in a closed annular structure. The bead 33 is formed by forming the inclined surface 31 at the rim, then forming the vertical surface 32 by four roll forming, and finally forming the bead 33 by five roll forming.
The ratio of the diameter of the closed annular structure designed bead 33 to the diameter of the rim is 1:20-1:30, preferably, the ratio of the diameter of the closed annular structure designed bead 33 to the diameter of the rim is 1:25, so that the strength of the rim is effectively increased, and the tire is prevented from deviating.
The primary rolling die, the secondary rolling die and the expansion finishing die can adopt the die of a common rim in the prior art to finish the three-sequence work; the primary rolling is responsible for extruding the groove bottom of the rim and is positioned by subsequent rolling, the secondary rolling is used for primarily rolling and forming the straight section of the rim, the bead seat and other parts, the tertiary rolling is used for rolling the other molded surfaces of the rim except the rim to the specified size of the national standard and rolling the rim into an inclined surface which is inclined by 20-25 degrees from the highest point to the outside and is inclined by the lower part, the quaternary rolling and the fifth rolling are only responsible for rolling the rim part and cannot roll other parts, and the quaternary rolling is used for processing the outer side of the rim into a downward vertical pattern by rolling and stretching, so that preparation is made for the fifth rolling; the outer side of the rim which is stretched into a vertical mode during four rolling is curled inwards by rolling for five times, and the outer side part of the whole rim is rolled into a ring-shaped structure, so that the weakest part in the rim, namely the strength of the rim, is increased, and the shock resistance is effectively improved.
The technical effect that this application can reach:
1. the rim is processed into an annular structure by adopting a cold rolling and rolling process, the rim forms a ring body, the problem of folds, wave patterns and the like of products caused by flanging can be avoided at the rim, and the problem of fuzzing and accumulated knots at the rim edge of a common rim in the production process can be effectively solved by repeated rolling and flanging;
2. through laboratory tests and loading road tests, the rated load of a single wheel is 3750Kg, the test load is 4875Kg, under the condition that the test load is improved by 30% compared with a common rim, the rim of the wheel which continuously runs at 4000Km is inspected to have no deformation, and the shock resistance of the product is improved by 30-32% compared with the common rim.
Claims (6)
1. A method of manufacturing a rim, characterized by: the method uses a rim manufacturing system, which comprises a frame, wherein a conveying platform for conveying the rim is arranged on the frame, a plurality of rim rolling mechanisms are sequentially arranged on one side of the conveying platform from front to back, each rim rolling mechanism is provided with a rotating base for installing a lower die of a rim rolling die and an upper die rotating shaft for installing an upper die of the rim rolling die, a jacking unit is arranged on the rotating base, a lower die rotating shaft for installing the lower die of the rim rolling die is transversely arranged on the jacking unit, and the lower die rotating shaft is arranged right below the upper die rotating shaft;
a primary roll-forming die, a secondary roll-forming die, a tertiary roll-forming die, a quaternary roll-forming die, a fifth roll-forming die for forming a closed annular structure at the rim of the rim and an expansion finishing die are respectively arranged on the rim roll-forming mechanism arranged from the front end to the rear end of the conveying platform;
the primary roll forming die, the secondary roll forming die, the tertiary roll forming die, the quaternary roll forming die and the quintic roll forming die comprise an upper die and a lower die, and a plurality of straight section parts for forming a bead seat matched with the tire on the rim are arranged on the upper die and the lower die;
the three-time rolling die comprises a three-time rolling upper die and a three-time rolling lower die, wherein the three-time rolling upper die is also provided with an upper inclined surface part for forming a downward inclined surface at the rim of the rim, and the three-time rolling lower die is also provided with a lower inclined surface part matched with the upper inclined surface part;
the four-roll forming die comprises a four-roll forming upper die and a four-roll forming lower die, wherein the four-roll forming upper die is also provided with an upper vertical part for rolling down an inclined plane to form a vertical plane, and the four-roll forming lower die is also provided with a lower vertical part matched with the upper vertical part;
the five-time rolling die comprises a five-time rolling upper die and a five-time rolling lower die, wherein the five-time rolling upper die is also provided with an upper arc-shaped groove which is used for inwards curling a downward vertical rim to form an annular structure, and the five-time rolling lower die is also provided with a lower arc-shaped groove matched with the upper arc-shaped groove;
the method comprises the following steps:
(1) Cutting, rounding and upsetting raw materials for manufacturing the rim, butt welding and flaring the raw materials to form a primary rim through a welding process, detecting a welding seam of the obtained primary rim by using a welding seam detection device, and conveying the primary rim qualified in detection to a conveying platform for conveying to the next process;
(2) The conveying platform conveys the primary rim to the first rolling mechanism, the primary rim is rolled by utilizing a primary rolling die, and a wheel groove matched with the tire is formed on the primary rim;
(3) The conveying platform conveys the primary rim to the second rolling mechanism, the secondary rolling die is utilized to roll the rim after the primary rolling die rolls, a straight section matched with the tire and a tire bead seat are further formed on the wheel groove, and then a thickness detection device is utilized to detect whether the thicknesses of the obtained rim are uniform or not, and the rim which is qualified in detection is conveyed to the next procedure;
(4) The primary rim is conveyed to a third rolling mechanism by a conveying platform, the primary rim is sleeved on a third rolling lower die manually, the third rolling lower die is propped up to a third rolling upper die through a jacking unit, then the third rolling upper die and the third rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, various surfaces of the rim after the rolling of the second rolling die are rolled to a specified size, and the rim is rolled to an inclined surface inclined towards the lower side;
(5) The conveying platform conveys the primary rim to a fourth rolling mechanism, the primary rim is sleeved on a fourth rolling lower die manually, the fourth rolling lower die is propped up to a fourth rolling upper die through a jacking unit, then the fourth rolling upper die and the fourth rolling lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and the inclined surface of the rim is rolled further to enable the inclined surface to be in a downward vertical shape;
(6) The primary rim is conveyed to a fifth roll forming mechanism by a conveying platform, the primary rim is sleeved on a five-time roll forming lower die manually, the five-time roll forming lower die is propped up to a five-time roll forming upper die through a jacking unit, then the five-time roll forming upper die and the five-time roll forming lower die are driven to rotate simultaneously by an upper die rotating shaft and a lower die rotating shaft, and a downward vertical rim formed on the rim is curled inwards to form a closed annular structure;
(7) Detecting whether cracks and air holes exist at each part of the obtained rim by using a rim flaw detection device, and conveying the rim which is qualified in detection to the next working procedure;
(8) The conveying platform conveys the primary rim to a sixth roll forming mechanism, and the rim subjected to roll forming of the five-time roll forming die is subjected to expansion finishing through an expansion finishing die;
(9) And (3) performing planing, rolling and cutting process treatment on the rim obtained in the step (8), then performing manual polishing, finally performing air tightness test, and punching a valve hole to obtain a rim finished product.
2. A method of manufacturing a rim according to claim 1, wherein: the upper die and the lower die of the rim roll forming die are respectively provided with a mounting groove, and the upper die rotating shaft and the lower die rotating shaft are respectively provided with a mounting lug which is clamped with the mounting grooves.
3. A method of manufacturing a rim according to claim 2, wherein: the rim roll forming mechanisms on two sides of the rotating shaft of each upper die are also provided with positioning rollers matched with the rims, and the positioning rollers are arranged on the rim roll forming mechanisms through telescopic units.
4. A method of manufacturing a rim according to claim 1, wherein: the jacking unit comprises a jacking oil cylinder, and the upper die rotating shaft is arranged at the jacking end of the jacking oil cylinder.
5. A method of manufacturing a rim according to claim 1, wherein: the frame on the same side of the rim rolling mechanism is also provided with a welding seam detection device, a thickness detection device and a rim flaw detection device which are used for detection in the rim manufacturing process; the welding seam detection device is arranged at the front side of the rim roll forming mechanism provided with the primary roll forming die, the thickness detection device is arranged at the front side of the rim roll forming mechanism provided with the tertiary roll forming die, and the rim flaw detection device is arranged at the rear side of the rim roll forming mechanism provided with the five-time roll forming die; the thickness detection device is an ultrasonic thickness measurement device, the ultrasonic thickness measurement device is provided with a rim placing seat, a plurality of ultrasonic detection heads are uniformly arranged on the rim placing seat in a rotating manner in the circumferential direction, and the lengths of the ultrasonic detection heads are consistent with the widths of rims; the rim flaw detection device is a radiographic inspection device, and the radiographic inspection device comprises a rotary flaw detection platform and a radiographic inspection head arranged on the rotary flaw detection platform.
6. A method of manufacturing a rim as claimed in claim 1, wherein: the inclined surface is inclined downwards by 20-25 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810097868.6A CN108162680B (en) | 2018-01-31 | 2018-01-31 | Rim manufacturing system, rim and manufacturing method thereof |
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| CN201810097868.6A CN108162680B (en) | 2018-01-31 | 2018-01-31 | Rim manufacturing system, rim and manufacturing method thereof |
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| CN108162680A CN108162680A (en) | 2018-06-15 |
| CN108162680B true CN108162680B (en) | 2024-03-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109352271A (en) * | 2018-11-01 | 2019-02-19 | 山东环宇车轮有限公司 | The enlarging die of expanding wheel rim and its new process for improving rim for automobile wheel fatigue behaviour |
| CN112171301B (en) * | 2020-08-10 | 2022-11-08 | 唐山兴民钢圈有限公司 | Rim production line |
| CN113977197B (en) * | 2021-10-28 | 2023-04-07 | 东风汽车车轮随州有限公司 | Chamfering process and mould for inner rim and outer rim of steel wheel |
| CN114393375A (en) * | 2022-01-14 | 2022-04-26 | 重庆市超群工业股份有限公司 | Process method for manufacturing two-piece type lock pin wheel rim by utilizing T-shaped section |
| CN114654170A (en) * | 2022-03-21 | 2022-06-24 | 张家港今日精锻有限公司 | Method for forming cantilever beam type steel wheel rim |
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| CN103273800A (en) * | 2013-06-04 | 2013-09-04 | 山东华轮实业有限公司 | Rim and production method thereof |
| CN105345405A (en) * | 2015-11-24 | 2016-02-24 | 山东云洲车轮有限公司 | Agricultural machine wheel rim roll forming process |
| CN107283129A (en) * | 2017-07-31 | 2017-10-24 | 枣庄运达机床有限公司 | A kind of compatible steel wheel for tubeless tires wheel rim and agricultural steel wheel rim contour roll forming production line |
| CN207808924U (en) * | 2018-01-31 | 2018-09-04 | 连云港华鼎车轮有限公司 | A kind of manufacture system and special type wheel rim of special type wheel rim |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273800A (en) * | 2013-06-04 | 2013-09-04 | 山东华轮实业有限公司 | Rim and production method thereof |
| CN105345405A (en) * | 2015-11-24 | 2016-02-24 | 山东云洲车轮有限公司 | Agricultural machine wheel rim roll forming process |
| CN107283129A (en) * | 2017-07-31 | 2017-10-24 | 枣庄运达机床有限公司 | A kind of compatible steel wheel for tubeless tires wheel rim and agricultural steel wheel rim contour roll forming production line |
| CN207808924U (en) * | 2018-01-31 | 2018-09-04 | 连云港华鼎车轮有限公司 | A kind of manufacture system and special type wheel rim of special type wheel rim |
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