CN111922262A - Near-net-shape forming equipment of spiral bevel gear, manufacturing method of near-net-shape forming equipment and rolling assembly - Google Patents
Near-net-shape forming equipment of spiral bevel gear, manufacturing method of near-net-shape forming equipment and rolling assembly Download PDFInfo
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- CN111922262A CN111922262A CN202011028897.0A CN202011028897A CN111922262A CN 111922262 A CN111922262 A CN 111922262A CN 202011028897 A CN202011028897 A CN 202011028897A CN 111922262 A CN111922262 A CN 111922262A
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- rolling
- spiral bevel
- bevel gear
- assembly
- spiral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/04—Making gear wheels, racks, spline shafts or worms bevel gears
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
- B21H8/02—Rolls of special shape
Abstract
The application discloses spiral bevel gear's near net shaping equipment and manufacturing method and rolling subassembly thereof, wherein the rolling subassembly includes at least one rolling spare and a guide rolling mechanism, wherein the week of rolling spare is equipped with spiral bevel gear along at least part, rolling spare with can connect in a mode of rolling around a circumference guide rolling mechanism to when rolling spare is rolling along the week of shaping base, on the rolling spare spiral bevel gear roll extrusion behind the shaping base, smoothly roll out from the spiral bevel gear groove on the shaping base, and then solve the problem of difficult drawing of patterns in the spiral bevel gear shaping process.
Description
Technical Field
The invention relates to spiral bevel gear forming equipment, in particular to near-net-shape forming equipment of a spiral bevel gear, a manufacturing method of the near-net-shape forming equipment and a rolling assembly.
Background
The spiral bevel gear has the advantages of large overlapping coefficient, strong bearing capacity, high transmission ratio, stable transmission, low noise and the like, and is widely applied to the mechanical transmission fields of automobiles, aviation, mines and the like. The principle of engagement between spiral bevel gears and the theory of machining and forming of spiral bevel teeth on the spiral bevel gears are extremely complex, and a special machine tool is generally adopted for machining. The machining technology set for the spiral bevel teeth on spiral bevel gears is basically monopolized by Gleason (Gleason), orlikon (Oerlikon) switzerland (Klingelnberg) in germany, and the spiral bevel gears are designed and machined according to the "grid" system, "gram" system and "ox" system standards (currently, orlikon and Klingelnberg have been combined, but different tooth systems remain). The grid is made into a hypoid gear (comprising a circular arc tooth bevel gear), the tooth trace is a circular arc, and generally, a contraction tooth is adopted. The 'ao' gear is an extended epicycloid gear, the 'g' gear is a quasi-involute gear, and the 'ao' gear and the 'g' gear have tooth lines which are part of a cycloid and are generally equal-height teeth. For the automotive industry, the American and Japanese systems generally use the Gerison gears, such as BUICK and TOYOTA, while the European systems generally use the Olympic gears, such as BENZ, BMW and AUDI. The spiral bevel gear on the spiral bevel gear is spiral, and the tooth profile is complex, so the spiral bevel gear is difficult to be processed and formed by adopting a common forging method, mainly because a die used for forging is difficult to demould after forging. Therefore, the prior art mostly adopts a machining mode.
A spiral bevel gear is formed by machining a bevel gear, machining such as cutting, milling, grinding and the like is performed by adopting a cutter on the basis of forging a gear blank, and the machining technology has the defects of large material benefit cutting allowance, long machining period and low efficiency. More importantly, the forging flow line is cut off, and the bending fatigue strength of the tooth root, the contact fatigue strength of the tooth surface, the wear resistance and the like are seriously reduced, so that the service life of the gear is short.
Further, when machining a forged gear blank, if it is necessary to form spiral bevel gears having different numbers of teeth and different heights of spiral bevel teeth, it is necessary to be able to appropriately modify the control program and appropriately modify the running locus of the cutting blade. Therefore, not only is certain difficulty brought to the software design of machining, but also the complexity of the machine is increased.
The near net shape forming technology means that the shape of the blank is close to the shape of the final part after the blank is processed once or a small number of times. The method has the advantages of reducing working procedures, shortening processing period and improving product quality. If the near-net forming technology of the spiral bevel gear can be developed, the subsequent machining amount can be greatly reduced, the short-flow machining is realized, the efficiency is improved, the material is saved, the cost is reduced, the streamline integrity is kept, and the fatigue life of the gear is prolonged.
In order to reduce machining allowance and improve machining efficiency and fatigue life, researchers in various countries strive to develop a precise forging method of a bevel gear, at present, a closed die forging method and a swing forging method can be adopted for machining a straight bevel gear, but the two methods cannot be used for machining a spiral bevel gear, and after machining is finished, the spiral bevel gear on the spiral bevel gear is in a spiral shape, so that the gear is clamped in a die, and direct demolding cannot be achieved. Researchers have designed rotatable dies for demolding spiral bevel gears, but this greatly increases the complexity of the dies, undoubtedly brings great difficulties to the design, manufacture and gear machining of the dies, and no better solution exists at present.
US3605467A discloses a finishing apparatus using a gear ring that rotates about a fixed axis of rotation to spin form helical bevel teeth around the circumference of a workpiece. This approach is only suitable for further finishing of workpieces that have been rough-cut with helical bevel teeth along the workpiece periphery. If such an apparatus is used for finishing helical bevel teeth, the workpiece is initially free of helical bevel teeth and the ring gear is rotated about a fixed axis of rotation only, so that slippage between the ring gear and the workpiece is likely to occur, resulting in a disordered tooth profile. Further, such finishing equipment requires the workpiece to be rotated in accordance with the rotation of the ring gear, so that when the ring gear stops rotating, the workpiece may have a tendency to rotate in the axial direction, thereby causing troubles in demolding.
Disclosure of Invention
An object of the present invention is to provide a near-net-shape forming apparatus for a spiral bevel gear, a method of manufacturing the same, and a rolling assembly, wherein the near-net-shape forming apparatus for a spiral bevel gear is capable of forming spiral bevel teeth on a formed blank to be processed by rolling, so that a mold release is not required when the spiral bevel teeth are formed.
An object of the present invention is to provide a near-net-shape forming apparatus for a spiral bevel gear, which rolls on a tooth path of a molded body all the time when the molded body is roll-formed, thereby forming uniform spiral bevel teeth on the molded body, a method of manufacturing the same, and a rolling assembly.
Another object of the present invention is to provide a near-net-shape forming apparatus for a spiral bevel gear, a method of manufacturing the same, and a rolling assembly, wherein when the near-net-shape forming apparatus for a spiral bevel gear rolls on a formed blank, the formed blank can be kept fixed in the rolling direction of a rolling member, thereby preventing slippage.
Another object of the present invention is to provide a near-net-shape forming apparatus for a spiral bevel gear, a method of manufacturing the same, and a rolling assembly, in which a forging line of a formed blank is not cut off when the formed blank is processed by rolling, thereby greatly increasing a fatigue life of the formed spiral bevel gear.
Another object of the present invention is to provide a near-final forming apparatus for a spiral bevel gear, which is capable of forming spiral teeth having different numbers of teeth, a method of manufacturing the same, and a rolling assembly.
It is another object of the present invention to provide a near-net-shape forming apparatus of a spiral bevel gear capable of forming spiral gears of different depths, a method of manufacturing the same, and a rolling assembly.
In order to achieve at least one of the above objects, the present invention provides a rolling assembly, wherein the rolling assembly comprises at least one rolling member and a rolling guide mechanism, wherein the rolling member is provided with helical teeth at least partially on the circumference, and the rolling member is connected to the rolling guide mechanism in a manner of rolling around a circumference.
According to an embodiment of the invention, the roller is embodied as a spiral bevel gear.
According to an embodiment of the present invention, the roller guiding mechanism is a spiral bevel gear plate, wherein a circumferential edge of the spiral bevel gear plate is provided with a driving spiral bevel gear.
According to an embodiment of the present invention, the positioning member is implemented as a rod-shaped connecting structure, wherein the rod-shaped connecting joint has a first transverse rod and a vertical rod perpendicular to the first transverse rod, the rolling member is fixed to one end of the first transverse rod, and the rolling member is driven by the spiral bevel gear disc to rotate around the direction in which the first transverse rod extends, the spiral bevel gear disc is fixed to one end of the vertical rod, and the spiral bevel gear disc is driven to rotate around the direction in which the vertical rod extends.
According to an embodiment of the present invention, the rolling assembly includes at least two rolling members, wherein the positioning member further includes at least one second transverse rod coplanar with the extending direction of the first transverse rod and perpendicular to the vertical rod, one rolling member is fixed to one end of each second transverse rod, and the rolling members rotate around the extending direction of the second transverse rod after being driven by the spiral bevel gear.
According to an embodiment of the invention, the roller members are symmetrically arranged.
According to an embodiment of the present invention, the positioning member includes at least one positioning rod, at least one positioning wheel and at least one ring-shaped limiting member, the positioning wheel and the rolling member are coaxially disposed at two ends of the positioning rod, the ring-shaped limiting member forms at least one raceway, and the positioning wheel is rollably limited on the raceway.
According to an embodiment of the present invention, the positioning component includes two ring-shaped limiting members, specifically, a first ring-shaped limiting member and a second ring-shaped limiting member, the first ring-shaped limiting member integrally extends to form a plurality of first guiding teeth, wherein the plurality of first guiding teeth form a first raceway, the second ring-shaped limiting member integrally extends to form a plurality of second guiding teeth, wherein the plurality of second guiding teeth form a first raceway, the positioning wheel is implemented as a gear, and two symmetrical portions of the positioning wheel are respectively engaged with the first raceway and the first raceway.
According to another aspect of the present invention to achieve at least one of the above objects, there is provided a spiral bevel gear terminal forming apparatus, wherein the near-final forming apparatus of a spiral bevel gear comprises:
the rolling assembly as described in any of the above; and
a drive assembly, wherein the helical teeth of the rolling elements are connected to the drive assembly in a manner to roll the periphery of the shaped blank.
According to an embodiment of the present invention, the driving assembly includes a driving unit, wherein the spiral bevel gear is rotatably connected to the driving unit.
According to an embodiment of the present invention, the driving assembly includes a pressing unit, wherein the pressing unit is implemented as a telescopic member and forms a telescopic end, and wherein the spiral bevel gear is telescopically connected to the pressing unit in synchronization with the telescopic end.
According to an embodiment of the invention, the predetermined distance by which the telescopic end is telescopic is implemented to be adjustable.
According to an embodiment of the present invention, the driving assembly includes a pressing unit, wherein the pressing unit is implemented as a telescopic member and forms a telescopic end for pressing the forming blank positioned at the telescopic end against the helical teeth of the rolling member.
According to an embodiment of the invention, the predetermined distance by which the telescopic end is telescopic is implemented to be adjustable.
According to one embodiment of the present invention, the roll-on-roll assembly is removably coupled to the drive assembly.
According to an embodiment of the present invention, the method for manufacturing the spiral bevel gear comprises the steps of:
a rolling member having a driving peripheral edge at least partially provided with helical teeth rolls the preform along the peripheral edge of a preform.
According to an embodiment of the present invention, a method for manufacturing a spiral bevel gear includes the steps of:
and driving a spiral conical fluted disc meshed with the rolling piece to rotate and press the forming blank so as to roll the forming blank in a rolling manner.
Further objects and advantages of the present invention will be fully apparent from the ensuing description and drawings, wherein at least two of the rolling members are driven to rollingly roll the shaped blank, wherein the rolling members in rotational engagement with the helical bevel disk are symmetrically arranged, in accordance with an embodiment of the present invention.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, which is to be read in connection with the accompanying drawings.
Drawings
Fig. 1 shows a perspective view of the helical bevel near net shape forming apparatus of the first embodiment of the present invention.
Fig. 2 shows an exploded view of the spiral bevel near net shape forming apparatus of the first embodiment of the present invention.
Fig. 3 shows a perspective view of the helical bevel near net shape forming apparatus of a second embodiment of the present invention.
Fig. 4 is an exploded view showing a partial structure of the helical bevel near-net-shape forming apparatus according to the second embodiment of the present invention.
Fig. 5 shows a schematic view of the spiral bevel near-finish forming apparatus of a variant embodiment of the second embodiment of the present invention when processing a parison.
Fig. 6 shows a schematic view of the helical bevel near-finish forming apparatus according to a third embodiment of the present invention when processing a parison.
Fig. 7 shows an exploded view of the helical bevel near net shape forming apparatus according to a third embodiment of the present invention.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
A spiral bevel near-net-shape forming apparatus according to a preferred embodiment of the present invention, which is capable of forming spiral bevel teeth on at least one preform 900 to facilitate further processing of the preform 900 into a spiral bevel gear, will be described in detail below with reference to fig. 1 to 7 of the specification.
The spiral bevel near-net-shape forming equipment comprises a rolling assembly 10 and a driving assembly 20. The rolling assembly 10 comprises at least one rolling member 11, wherein the circumferential edge of the rolling member 11 is at least partially provided with spiral bevel teeth 111. The spiral bevel teeth 111 of the rolling members 11 are connected to the driving assembly 20 in such a manner as to roll the peripheral edge of the formed blank 900. It is worth mentioning that the rolling members 11 can roll the formed blank 900 on a circumference of the formed blank 900 after being driven by the driving assembly 20, so as to form the spiral tapered tooth slot 901 on the circumference of the formed blank 900 correspondingly. A spiral bevel tooth is defined between two adjacent spiral bevel tooth slots 901. Thus, the blank mold 900 can be formed into a spiral bevel gear.
Preferably, the rolling members 11 are implemented as a spiral bevel gear, that is, the rolling members 11 are provided with spiral bevel teeth on the peripheral edges thereof.
The rolling assembly 10 further comprises a roller guide mechanism, wherein the rolling members 11 are connected to the roller guide mechanism in such a way as to be capable of rolling on at least one circumference, so that the rolling members 11 can be driven by the roller guide mechanism to roll around the formed blank 900 to be rolled. That is, a circular raceway is formed on one circumference of the rail mechanism, wherein the roller members 11 are rollably mounted to the circular raceway.
The roller guide mechanism is implemented as a spiral bevel gear plate 12, wherein the periphery of the spiral bevel gear plate 12 is provided with a driving spiral bevel gear 121 to form the circular raceway. A portion of the spiral bevel teeth 111 on the rolling members 11 remain engaged with the driving spiral bevel teeth 121 on the spiral bevel gear disc 12, so that when the spiral bevel gear disc 12 is driven to rotate, the rolling members 11 are driven to roll the formed blank 900 along one circumferential position of the formed blank 900.
Since the molded product 11 is driven by the spiral bevel gear disc 12 to roll the molded blank 900 along one circumferential position of the molded blank 900, after the spiral bevel grooves are formed at the corresponding positions on the molded blank 900, the molded product 11 accommodated in the spiral bevel grooves of the molded blank 900 can continue to roll, and can smoothly roll out of the spiral bevel grooves of the molded blank 900, so that a problem of difficulty in mold release does not occur.
Preferably, the rolling assembly 10 includes at least two rolling members 11, wherein at least two rolling members 11 are engaged with the helical bevel gear disc 12. More preferably, a plurality of said rolling members 11 are symmetrically held in engagement with said helical bevel disk 12. It is because at least two rolling members 11 can be engaged with the spiral bevel gear disc 12 at the same time, when the spiral bevel gear disc 12 is driven to rotate, at least two rolling members 11 synchronously roll the formed blank 900 along one circumferential position of the formed blank 900.
The roll-on-roll assembly 10 also includes a locating feature 13. The roller members 11 are held in engagement with the helical bevel disk 12 by the positioning members 13.
More preferably, the rolling assembly 10 comprises at least two of the rolling members 11. At least two of the roller presses 11 are held in engagement with the helical bevel disk 12 by the positioning elements 13.
In one embodiment of the present invention, the positioning member 13 is implemented as a rod-shaped connecting structure, wherein the rod-shaped connecting joint has a first transverse rod 131 and a vertical rod 132 perpendicular to the first transverse rod 131. The rolling member 11 is fixed to one end of the first transverse rod 131, and the rolling member 11 rotates around the direction in which the first transverse rod 131 extends after being driven by the helical bevel gear 12. The spiral bevel gear plate 12 is fixed at one end of the vertical rod 132, and after the spiral bevel gear plate 12 is driven to rotate, the spiral bevel gear plate 12 rotates around the direction in which the vertical rod 132 extends.
When the spiral bevel gear plate 12 is driven, the spiral bevel gear plate 12 rotates about the vertical rod 132. Meanwhile, the rolling members 11 are driven by the spiral bevel gear disc 12 to roll. That is, the roller members 11 are held in engagement with the helical bevel disk 12 by the positioning members 13.
Preferably, the positioning member 13 further includes at least one second transverse rod 133 coplanar with the extending direction of the first transverse rod 131 and perpendicular to the vertical rod 132. One end of each of the second transverse rods 133 is fixed to one of the rolling members 11, and the rolling members 11 rotate around the extending direction of the second transverse rods 133 after being driven by the spiral bevel gear disc 12.
In this way, the helical bevel disk 12 can engage with a plurality of roller presses 11. In addition, when the rolling members 11 are pressed against the formed blank 900, since at least two rolling members 11 roll on the formed blank 900, the efficiency of processing can be improved.
Preferably, the roller members 11 are symmetrically arranged when at least two roller members 11 are engaged with the helical toothed disc 12.
When at least two rolling members 11 are symmetrically engaged with the spiral bevel gear plate 12, the spiral bevel gear plate 12 is stably supported on the formed blank 900 and is difficult to shift, so that the spiral bevel gear grooves formed on the formed blank 900 can be kept consistent when a plurality of spiral bevel gear plates 12 are simultaneously driven by the spiral bevel gear plate 12.
In another embodiment of the present invention, the positioning component 13A includes at least one positioning rod 131A, at least one positioning wheel 132A, and a ring-shaped limiting component 133A. The positioning wheels 132A and the roller presses 11 are coaxially provided at both end portions of the positioning rod 131A. The ring-shaped retaining member 133A forms at least one raceway 13301A. The positioning wheel 132A is rollably constrained to the raceway 13301A.
Preferably, the ring-shaped position-limiting member 133A includes a first ring-shaped position-limiting member 1331A and a second ring-shaped position-limiting member 1332A. The first ring-shaped limiting member 1331A integrally extends to form a plurality of first guide teeth 133101A, wherein the plurality of first guide teeth 133101A form a first raceway 133102A. The second ring-shaped limiting element 1332A integrally extends to form a plurality of second guide teeth 133201a, wherein the plurality of second guide teeth 133201a form a first raceway 133202A. The positioning wheel 132A is implemented as a gear, and two symmetrical portions of the positioning wheel 132A are engaged with the first raceway 133102A and the first raceway 133202A, respectively.
By this arrangement, the roller members 11 are held in engagement with the helical bevel disk 12. Preferably, the rolling assembly 10 includes a plurality of rolling members 11, wherein each of the rolling members 11 is held in engagement with the helical conical toothed disc 12 by one of the positioning members 13.
The driving assembly 20 comprises a driving unit 21, wherein the rolling members 11 are configured to be driven by the driving unit 21 to roll along a circumferential position of the blank 900. Therefore, when the roller 11 is pressed against the formed blank 900, since the roller 11 can be driven to rotate by the driving unit 21, the spiral tapered teeth 111 on the roller 11 can correspondingly form the spiral tapered tooth grooves 901 on the formed blank 900.
The helical bevel gear disc 12 is rotatably connected to the drive unit 21 such that, when the drive unit 21 is activated, the helical bevel gear disc 12 can rotate to roll the rolling members 11 along one circumferential position of the formed blank 900.
In the embodiment where the positioning member 13 is implemented as a rod-shaped connecting structure, when the plurality of rolling members 11 are engaged with the spiral bevel gear disc 12, the plurality of rolling members 11 can be not only fixed relative to the spiral bevel gear disc 12, but also synchronously driven by the spiral bevel gear disc 12 to roll along a circumferential position of the blank 900 by the rod-shaped connecting structure.
In the embodiment where the positioning component 13 is implemented to include at least the positioning rod 131A, at least one positioning wheel 132A and the ring-shaped limiting piece 133A, since the positioning wheel 132A and the rolling member 11 are respectively fixed to two ends of the positioning rod 131A, after the driving unit 21 is started, the rolling member 11 will be driven by the helical bevel gear disc 12, and accordingly, the positioning wheel 132A will roll along the raceway 13301A coaxially with the rolling member 11.
The driving assembly 20 further includes a pressing unit 22, and the rolling member 11 is pressed against the formed blank 900 by the pressing unit 22. Preferably, the pressing unit 22 is implemented as a telescopic member, such as a hydraulic cylinder.
When the pressing unit 22 is implemented as a telescopic member, the pressing unit 22 forms a telescopic end 221. When the formed blank 900 needs to be machined, the rolling member 11 gradually approaches the formed blank 900 by driving the telescopic end 221 of the pressing unit 22 to extend out until the formed blank 900 is pressed, and at the same time, the spiral conical toothed disc 12 is driven by the driving unit 21 to rotate, and the spiral conical toothed disc 12 drives the rolling member 11 to roll on the formed blank 900. Subsequently, the blank 900 will be rolled by the helical bevel gear disc 12, thereby forming the helical bevel slots on the blank 900.
After the telescopic end 221 moves a predetermined distance, the spiral taper slots with a predetermined depth are formed on the blank 900. In other words, by controlling the distance that the telescopic end 221 moves, the depth of the formed spiral taper slot can be controlled.
In an embodiment of the present invention, the driving unit 21 is fixed to a telescopic end 221 of the pressing unit 22. When the formed blank 900 needs to be machined, the formed blank 900 may be first fixed in a position coaxial with the spiral bevel gear plate 12. Subsequently, the pressing unit 22 and the driving unit 21 are activated to roll the helical teeth 111 on the rolling members 11 onto the formed blank 900.
In a variant embodiment of the invention, the blank 900 is fixed to a telescopic end 221 of the pressing unit 22. When a parison 900 is to be processed, the parison 900 may first be secured in a position coaxial with the spiral bevel disk 12. Subsequently, the pressing unit 22 and the driving unit 21 are activated to roll the helical teeth 111 on the rolling members 11 onto the formed blank 900.
More preferably, the roll-on-roll assembly 10 is replaceably connected to the drive unit 21. In this way, when it is desired to form the spiral bevel gears with different numbers of teeth, the roll press assembly 10 adapted thereto may be replaced correspondingly.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (19)
1. The rolling assembly is characterized by comprising at least one rolling piece and a rolling guide mechanism, wherein spiral conical teeth are arranged on at least part of the periphery of the rolling piece, and the rolling piece is connected to the rolling guide mechanism in a mode of rolling around a circumference.
2. The stitching assembly of claim 1 wherein the stitching member is implemented as a spiral bevel gear.
3. The rolling assembly of claim 2, wherein the roller guide mechanism is a spiral bevel disk, wherein a peripheral edge of the spiral bevel disk is provided with drive spiral bevel teeth, and wherein the roller members are rollably engaged with the drive spiral bevel teeth of the spiral bevel disk along the peripheral edge of the spiral bevel disk.
4. The roll-on assembly of any one of claims 1 to 3 further comprising a retaining member by which the roll-on members are retained in engagement with the helical bevel gear disc.
5. The rolling assembly of claim 4, wherein the positioning member is implemented as a rod-like connection structure having a first transverse rod and a vertical rod perpendicular to the first transverse rod, the rolling member is fixed to an end of the first transverse rod, and the rolling member is driven by the helical bevel gear disc to rotate about a direction in which the first transverse rod extends, the helical bevel gear disc is fixed to an end of the vertical rod, and the helical bevel gear disc is driven to rotate about a direction in which the vertical rod extends.
6. The rolling assembly of claim 5, wherein the rolling assembly comprises at least two rolling members, and wherein the positioning member further comprises at least a second transverse rod coplanar with the extending direction of the first transverse rod and perpendicular to the vertical rod, one rolling member is fixed to an end of each second transverse rod, and the rolling members rotate around the extending direction of the second transverse rod after being driven by the spiral bevel gear.
7. The stitching assembly of claim 6 wherein the stitching members are symmetrically disposed.
8. The rolling assembly of claim 4 wherein the positioning member comprises at least one positioning rod, at least one positioning wheel and at least one ring retainer, the positioning wheel and the rolling member being coaxially disposed at opposite ends of the positioning rod, the ring retainer defining at least one raceway, the positioning wheel being rollably retained in the raceway.
9. The rolling assembly according to claim 8, wherein the positioning member comprises two ring-shaped retaining members, in particular a first ring-shaped retaining member and a second ring-shaped retaining member, the first ring-shaped retaining member integrally extends to form a plurality of first guide teeth, wherein a plurality of the first guide teeth form a first raceway, the second ring-shaped retaining member integrally extends to form a plurality of second guide teeth, wherein a plurality of the second guide teeth form a first raceway, the positioning wheel is implemented as a gear, and two symmetrical portions of the positioning wheel are engaged with the first raceway and the first raceway, respectively.
10. Near-net-shape forming equipment for a spiral bevel gear, wherein the near-net-shape forming equipment for a spiral bevel gear comprises:
the roll-on-roll assembly of any one of claims 1 to 9; and
a drive assembly, wherein said helical crenellations of said rolling elements are connected to said drive assembly in a manner to enable rolling of a parison perimeter.
11. The near net shaping device for spiral bevel gears of claim 10, wherein the drive assembly comprises a drive unit, wherein the spiral bevel disk is rotatably connected to the drive unit.
12. The near-net-shape forming apparatus for spiral bevel gears according to claim 10, wherein the driving assembly includes a pressing unit, wherein the pressing unit is implemented as a telescopic member and forms a telescopic end, and wherein the spiral bevel gear plate is telescopically connected to the pressing unit in synchronization with the telescopic end.
13. The near net forming apparatus for a spiral bevel gear according to claim 12, wherein the predetermined distance by which the telescopic end is telescopic is implemented to be adjustable.
14. The near-net forming apparatus for spiral bevel gears according to claim 10, wherein the driving assembly includes a pressing unit, wherein the pressing unit is implemented as a telescopic member and forms a telescopic end for pressing the formed blank positioned at the telescopic end against the spiral bevel teeth of the rolling member.
15. The near net forming apparatus for a spiral bevel gear according to claim 14, wherein the predetermined distance by which the telescopic end is telescopic is implemented to be adjustable.
16. The near net forming apparatus for a spiral bevel gear according to claim 10, wherein the rolling assembly is removably connected to the drive assembly.
17. The manufacturing method of the spiral bevel gear is used for manufacturing a parison into the spiral bevel gear, and is characterized by comprising the following steps of:
the preform is rolled along the periphery of a preform by driving a rolling member having a peripheral edge at least partially provided with helical teeth.
18. The method of manufacturing a spiral bevel gear according to claim 17, wherein the method of manufacturing the spiral bevel gear comprises the steps of:
and driving a spiral conical fluted disc meshed with the rolling piece to rotate and press the forming blank so as to roll the forming blank.
19. The method for manufacturing a spiral bevel gear according to claim 18, wherein at least two of the rolling members are driven to roll the formed blank, wherein the rolling members rotatably engaged with the spiral bevel gear disc are symmetrically arranged.
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| CN202011028897.0A CN111922262B (en) | 2020-09-27 | 2020-09-27 | Near-net-shape forming equipment of spiral bevel gear, manufacturing method of near-net-shape forming equipment and rolling assembly |
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| CN202011028897.0A CN111922262B (en) | 2020-09-27 | 2020-09-27 | Near-net-shape forming equipment of spiral bevel gear, manufacturing method of near-net-shape forming equipment and rolling assembly |
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| JPH0592226A (en) * | 1991-09-30 | 1993-04-16 | Nissan Motor Co Ltd | Bottom rolling device |
| US20070068211A1 (en) * | 2005-03-14 | 2007-03-29 | Nobuo Ogishi | Gear roll-forming apparatus |
| CN101927309A (en) * | 2010-08-03 | 2010-12-29 | 北京机电研究所 | Precision plastic forming manufacture technology of spiral bevel gear |
| CN109899455A (en) * | 2019-03-23 | 2019-06-18 | 大连碧蓝节能环保科技有限公司 | Landing tee sets twin shaft output few teeth difference bipyramid tooth mechanical differential structure |
-
2020
- 2020-09-27 CN CN202011028897.0A patent/CN111922262B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3605467A (en) * | 1969-10-30 | 1971-09-20 | Lear Siegler Inc | Rolling of tapered gears |
| JPH0592226A (en) * | 1991-09-30 | 1993-04-16 | Nissan Motor Co Ltd | Bottom rolling device |
| US20070068211A1 (en) * | 2005-03-14 | 2007-03-29 | Nobuo Ogishi | Gear roll-forming apparatus |
| CN101927309A (en) * | 2010-08-03 | 2010-12-29 | 北京机电研究所 | Precision plastic forming manufacture technology of spiral bevel gear |
| CN109899455A (en) * | 2019-03-23 | 2019-06-18 | 大连碧蓝节能环保科技有限公司 | Landing tee sets twin shaft output few teeth difference bipyramid tooth mechanical differential structure |
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| CN111922262B (en) | 2020-12-25 |
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Effective date of registration: 20221024 Address after: 200120 building C, No. 888, Huanhu West 2nd Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Jibo Laser Technology Co.,Ltd. Address before: Room a-171, building 1, 1758 Luchaogang Road, Nanhui new town, Pudong New Area, Shanghai, 200941 Patentee before: SHANGHAI DALU TIANRUI LASER SURFACE ENGINEERING CO.,LTD. |