CN102107707B - Head stock bowl group manufacturing method - Google Patents
Head stock bowl group manufacturing method Download PDFInfo
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- CN102107707B CN102107707B CN2009101131038A CN200910113103A CN102107707B CN 102107707 B CN102107707 B CN 102107707B CN 2009101131038 A CN2009101131038 A CN 2009101131038A CN 200910113103 A CN200910113103 A CN 200910113103A CN 102107707 B CN102107707 B CN 102107707B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/06—Bearings specially adapted for steering heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/18—Connections between forks and handlebars or handlebar stems
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a method for throughout automatically manufacturing an upper cover, an upper bowl and a lower bowl of a head stock bowl group. The upper cover, the upper bowl and the lower bowl are completed through conducting a series of cold-forging processing on metal rods in preset shapes and weights by using a continuous die formed by multiple groups of dies. The upper cover is formed in a manner that a non-through inserting hole is formed on the top surface of the head stock bowl group; a compression ring protrudes from the bottom surface of the head stock bowl group; the inserting hole is continuously cold-forged through the continuous die, so as to enable the inserting hole to pass through the two surfaces of the head stock bowl group and satisfy the dimension requirement; and a push-pull surface is formed on the top surface of the head stock bowl group in a cold-forged manner by using the continuous die. As for the upper bowl and the lower bowl, a ring propping shoulder capable of being connected to the outer end of a head tube in a propped manner and a cylinder body capable of extending into the head tube are formed, and a non-through accommodating hole is formed on the end surface of the ring propping shoulder; then the ring propping shoulder, the cylinder body and the accommodating hole are continuously cold-forged through the continuous die; and afterwards, a perforation hole which is concentric with the accommodating hole and has a necked-down hole diameter is formed on the end surface of the cylinder body, thereby completing the manufacturing of the upper bowl and the lower bowl. Through the adoption of the manufacturing method, the requirements for high precision and high strength can be satisfied, the production cost can be reduced, and the processing efficiency can be improved.
Description
Technical field
The present invention relates to a kind of meet high precision and high strength requirement, and can reduce production costs and improve the headset group manufacture method of work efficiency.
Background technology
Standard bicycle headset group, just shown in the first figure in the TaiWan, China application No. 090115223 " headset group ", mainly be by a loam cake, one is installed on the upper bowl between loam cake and head tube top, one be installed on lower bowl of the head tube bottom form, make between loam cake and the upper bowl and can one head bearing be installed through packing ring on, as for lower bowl then sees through packing ring one lower bearing is installed, make front fork be installed on one heart, among the lower bearing, front fork can be seen through to be somebody's turn to do, lower bearing and around the rotation at head tube center, can see through the direct of travel that is arranged at the handle rack on front fork top and controls bicycle to make things convenient for the user.
Traditional manufacturing step of this loam cake, upper bowl and lower bowl is warp sequentially: prepare the extruded signing panel rod → go out with the lathe tool cutting forming on the lathe the interior hole dimension of circumferential profile → getting out with drill bit on lathe endoporus → processing with internal lathe-tool on the lathe → on the lathe with parting-off tool with loam cake, on bowl or lower bowl severing → finished product.This kind cutting method for making has following shortcoming:
(1) needs to use various different tool sharpenings, the situation of efficient deficiency when a large amount of production;
(2) can't reduce its whole overhours, so the problem that has manufacturing cost to reduce;
(3) when turning, there are a large amount of waste materials to produce, quite waste material;
(4) can't strengthen its density of material and intensity.
Because traditional cutting has above-mentioned shortcoming, so just there is a kind of technology of hot-forging forming headset to produce, its manufacturing step is warp sequentially: preparation extruded signing panel rod → need cut than secondary processing punching press after the more material of moulding object (increase material cost) → material heating (increasing the heat energy cost) → forge hot punch forming (must have unnecessary material in work material flash district on every side at formed in mould object in order to make shaped article certain this moment) → moulding blanking and remove flash → turning or grind the aperture size that splintery fracture → the turning machining needs of removing flash and producing.
Hence one can see that, the technology of this hot-forging forming headset, and it really has the waste material, increases the heat energy cost, needs deburring etc. not enough to be improved, and the inventor grinds through continuous design, wound, develops to have practical the present invention.
Summary of the invention
Main purpose of the present invention is to provide a kind of meet high precision and high strength requirement, and can reduce production costs and improve the headset group manufacture method of work efficiency.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; Loam cake is the modulus of continuity that the metal bar of reservation shape and weight forms with many groups mould to be carried out a series of cold forgings form, make it at the non-through jack of end face moulding one, the bottom surface is extruded with a pressure ring, then via modulus of continuity cold forging and with the typing of this jack and pressure ring repeatedly, so that this jack connects the two sides, thereby consist of required loam cake; Upper bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, thereby have a ring that can be connected to the head tube top and support shoulder, a stack shell that can stretch in the head tube, and support the non-through appearance hole of end face moulding one of shoulder in ring, then via modulus of continuity repeatedly cold forging should support shoulder, stack shell and hold the hole by ring, then, the end face of stack shell form one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction; Lower bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, thereby have a ring that can be connected to the head tube bottom and support shoulder, a stack shell that can stretch in the head tube, and support the non-through appearance hole of end face moulding one of shoulder in ring, then via modulus of continuity repeatedly cold forging should support shoulder, stack shell and hold the hole by ring, then, the end face of stack shell form one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction.
The modulus of continuity of above-mentioned loam cake, upper bowl and lower bowl is installed on a screw forming machine or a screw forming machine, to carry out a series of Cold Forging.
Above-mentioned loam cake modulus of continuity is the height of cold forging pressure rolling metal bar at first, then at the non-through class's jack of end face cold-forge forming one, and at the outstanding pressure ring of bottom surface cold-forge forming one; Again with modulus of continuity this jack of cold forging repeatedly, and make this jack connect the two sides, and form chamfering in the upper and lower ora terminalis of this jack; Continuation is with repeatedly this jack reaming of cold forging of modulus of continuity, and whole height, eliminating the chamfering of the upper and lower ora terminalis of jack, and goes out the make progress pushing face-drawing of convergent of diameter in the end face cold-forge forming; Just with modulus of continuity jack, pressure ring, pushing face-drawing are finalized the design at last, make it to mold required loam cake.
Above-mentioned upper and lower bowl modulus of continuity is the height of cold forging pressure rolling metal bar at first, and then just cold-forge forming goes out stack shell, ring and supports shoulder, non-through appearance hole; Again with the modulus of continuity appearance hole depth that progressively stretches, and the pressure rolling whole height, and form the cushion hole in a fovea superior and non-through appearance hole in the stack shell bottom face; Continuation is with modulus of continuity cold forging this appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with this modulus of continuity stack shell, ring are supported shoulder, appearance hole, perforation moulding.
Above-mentioned upper and lower bowl modulus of continuity is engraved required pattern, thereby makes this modulus of continuity mold corresponding pattern at upper and lower bowl surface.
A kind of headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; Described loam cake is the modulus of continuity that the metal bar of reservation shape and weight forms with many groups mould to be carried out a series of cold forgings form, this metal bar height of cold forging pressure rolling at first, then in the non-through jack of end face cold-forge forming one, and in the outstanding pressure ring of bottom surface cold-forge forming one; Again with modulus of continuity this jack of cold forging repeatedly, and make this jack connect the two sides, and form chamfering at the upper and lower ora terminalis of this jack; Continuation is with repeatedly this jack reaming of cold forging of modulus of continuity, and whole height, eliminating the chamfering of the upper and lower ora terminalis of jack, and goes out the make progress pushing face-drawing of convergent of diameter in the end face cold-forge forming; Just with this modulus of continuity jack, pressure ring, pushing face-drawing are finalized the design at last, make it to mold required loam cake.
The modulus of continuity of above-mentioned loam cake is engraved required pattern, thereby makes this modulus of continuity mold corresponding pattern at the loam cake pushing face-drawing.
Above-mentioned lower bowl shape and upper bowl are up and down and are symmetrical arranged, this upper and lower bowl is that the metal bar with reservation shape and weight carries out a series of cold forgings with the modulus of continuity that many groups mould forms, this metal bar height of cold forging pressure rolling at first, then just cold-forge forming goes out a ring that can be connected to the head tube outer end and supports shoulder, a stack shell that can stretch in the head tube, and supports the non-through appearance hole of shoulder end face moulding one in ring; Again with modulus of continuity repeatedly this stack shell of cold forging, ring support shoulder, and progressively stretch and hold hole depth, and the pressure rolling whole height, and form the cushion hole in a recessed and non-through appearance hole in the stack shell top end face; Continuation is with the modulus of continuity cold forging aforementioned appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with modulus of continuity stack shell, ring are supported shoulder, hold the hole typing, and in the end face of stack shell be penetrated with one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction, make it to mold required upper and lower bowl.
A kind of headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; Described lower bowl shape and upper bowl are up and down and are symmetrical arranged, this upper and lower bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, this metal bar height of cold forging pressure rolling at first, then just cold-forge forming goes out a ring that can be connected to the head tube outer end and supports shoulder, a stack shell that can stretch in the head tube, and supports the non-through appearance hole of shoulder end face moulding one in ring; This stack shell of cold forging, ring support shoulder, and the aforementioned appearance hole depth that progressively stretches, and pressure rolling whole height, and form the cushion hole in a recessed and non-through appearance hole in the stack shell top end face repeatedly with modulus of continuity again; Continuation is with modulus of continuity cold forging this appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with this modulus of continuity stack shell, ring are supported shoulder, hold the hole typing, and in the end face of stack shell be penetrated with one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction, make it to mold required upper and lower bowl.
Above-mentioned upper and lower bowl modulus of continuity is engraved required pattern, thereby makes this modulus of continuity go out corresponding pattern at the surface forming of upper and lower bowl.
After adopting such scheme, the present invention always automation ground with the loam cake of headset group, upper bowl and lower bowl respectively manufacturing finish, and need not other secondary processing, in order to reach principle and the novel capabilities that reduces production costs and work efficiency is provided, a kind of innovative techniques of effective solution is proposed for the manufacture of headset group really.
Description of drawings
Fig. 1 is the primary member decomposing schematic representation of headset group of the present invention;
Fig. 2 is the thin section member decomposing schematic representation of headset group of the present invention;
Fig. 3 is the schematic appearance that headset group of the present invention is installed on bicycle;
Fig. 4 A is the three-dimensional manufacturing process scheme drawing of loam cake of the present invention;
Fig. 4 B be loam cake of the present invention analyse and observe the manufacturing process scheme drawing;
Fig. 4 C is another three-dimensional manufacturing process scheme drawing of loam cake of the present invention;
Fig. 5 A is the three-dimensional manufacturing process scheme drawing of bowl in the present invention;
Fig. 5 B be in the present invention bowl analyse and observe the manufacturing process scheme drawing;
Fig. 6 A is lower bowl of the present invention's three-dimensional manufacturing process scheme drawing;
Fig. 6 B be lower bowl of the present invention analyse and observe the manufacturing process scheme drawing;
Fig. 7 is the second embodiment scheme drawing of headset group of the present invention;
Fig. 8 is the 3rd embodiment scheme drawing of headset group of the present invention.
The main element nomenclature
A loam cake a1 metal bar a2 is idiosome just
11 jacks, 12 pressure rings, 13 pushing face-drawings
14 patterns
The upper bowl of B b1 metal bar b2 is idiosome just
21 stack shells, 22 rings support shoulder 23 and hold the hole
24 cushion holes, 25 perforation, 26 patterns
Lower bowl of c1 metal bar c2 of C be idiosome just
31 stack shells, 32 rings support shoulder 33 and hold the hole
34 cushion holes, 35 perforation, 36 patterns
Packing ring on 41 head bearings, 42 lower bearings 43
44 times packing ring 45 pads
50 vehicle frames, 51 head tubes, 52 handle racks
The specific embodiment
Below in conjunction with drawings and the specific embodiments structure of the present invention, feature and other purpose are elaborated.
See also Fig. 1 to shown in Figure 3, headset group provided by the present invention, mainly by bowl B on the loam cake A, one and once a bowl C form, with so that front fork can be installed in the head tube 51 of vehicle frame 50 pivotally, make it to control for handle rack 52 the bicycle direction of advancing.
Please cooperate in addition shown in Fig. 4 B, loam cake A has a jack 11 that can supply front fork to run through, and in the bottom surface projection one pressure ring 12 concentric with jack 11 arranged, and then having the make progress pushing face-drawing 13 of convergent of diameter as for the end face of this loam cake A, this pushing face-drawing 13 forms required pattern 14 or LOGO.
Please cooperate in addition shown in Fig. 5 B, upper bowl B has a stack shell 21, that can insert in the head tube 51 can be connected to the ring on head tube 51 tops to shoulder 22, the one appearance hole 23 that is arranged with from top to bottom, and form an aperture in stack shell 21 bottoms and hold the perforation 25 that hole 23 is little and can run through for front fork, thereby between appearance hole 23 and front fork, head bearing 41 is installed, and the pressure ring 12 that makes loam cake A can be suppressed packing ring 43 and a pad 45 on one, in order to head bearing 41 location, and form required pattern 26 or LOGO at the end face of upper bowl B.
Please cooperate in addition shown in Fig. 6 B, the shape of lower bowl C and upper bowl B are symmetrical, can be connected to the ring of head tube 51 bottoms to shoulder 32, the one appearance hole 33 that is arranged with from bottom to top and have a stack shell 31, that can insert in the head tube 51, and form an aperture at the top of stack shell 31 and hold the perforation 35 that hole 33 is little and can run through for front fork, thereby between appearance hole 33 and front fork, lower bearing 42 is installed, and make packing ring 44 with lower bearing 42 location, then form required pattern 36 or LOGO at ring to the end face of takeing on 32 as for this lower bowl C.
Thus, so that front fork can see through upper and lower bearing 41,42 and around head tube 51 center rotations, adjust the direct of travel of bicycle to make things convenient for the user.
Please referring to Fig. 4 A, Fig. 4 B and Fig. 4 C, the manufacturing step of its loam cake A includes:
1) the aluminum metal bar a1 of preparation reservation shape and weight;
2) will organize the serial modulus of continuity that mould forms more and be installed on a nut shaping machine (NutFormer) or screw forming machine (Bolt Former), at first the height of this metal bar of cold forging pressure rolling a1 forms a first idiosome a2;
3) then at the non-through class's jack 11 of the end face cold-forge forming one of first idiosome a2, and at the outstanding pressure ring 12 of bottom surface cold-forge forming one;
4) again with the modulus of continuity repeatedly aforementioned jack 11 of cold forging and whole height, and make this jack 11 connect two sides, and form chamfering at the upper and lower ora terminalis of this jack 11;
5) continue with modulus of continuity this jack 11 reamings and whole height of cold forging repeatedly, eliminating the chamfering of jack 11 upper and lower ora terminalis, and go out the make progress pushing face-drawing 13 of convergent of diameter in the end face cold-forge forming;
6) last, just with modulus of continuity jack 11, pressure ring 12, pushing face-drawing 13 are finalized the design, make it to mold required loam cake A, and see through modulus of continuity and engrave required pattern or LOGO, thereby the pushing face-drawing 13 at loam cake A forms pattern 14 or LOGO, in order to reach required indication effect, if this value added uses traditional method for making really to be difficult to realize, pattern 14 or LOGO can select to protrude according to actual needs or be recessed.
Please referring to Fig. 5 A and Fig. 5 B, the manufacturing step of upper bowl B includes:
1) the aluminum metal bar b1 of preparation reservation shape and weight;
2) will organize the serial modulus of continuity that mould forms more and be installed on a nut shaping machine (NutFormer) or screw forming machine (Bolt Former), at first the height of cold forging pressure rolling metal bar b1 forms a first idiosome b2;
3) then on first idiosome b2 cold-forge forming one can stretch into the ring that stack shell 21, in the head tube 51 can be connected to head tube 51 tops and support shoulder 22, and support the non-through appearance hole 23 of end face moulding one of shoulder 22 in ring;
4) again with modulus of continuity repeatedly the aforementioned stack shell 21 of cold forging, ring support shoulder 22, and progressively stretch and hold the degree of depth in hole 23, and the pressure rolling whole height, and form the cushion hole 24 in a fovea superior and non-through appearance hole 23 in stack shell 21 bottom faces;
5) continue with modulus of continuity repeatedly cold forging stretch and hold the degree of depth in hole 23, and will hold hole 23 reamings, thereby make cushion hole 24 can offset the drastic deformation amount in appearance hole 23;
6) last, just with modulus of continuity stack shell 21, ring are supported shoulder 22, hold hole 23 typings, and in the end face of stack shell 21 be penetrated with one with the perforation 25 of holding the concentric and aperture constriction in hole 23, make it to mold required upper bowl B, and see through modulus of continuity and engrave required pattern or LOGO, thereby the end face that supports shoulder 22 at ring forms pattern 26 or LOGO, and in order to reach required indication effect, this pattern 26 or LOGO can select to protrude according to actual needs or be recessed.
Please referring to Fig. 6 A and Fig. 6 B, the shape of lower bowl C is up and down with upper bowl of B and is symmetrical arranged, so the same flow process of its need can create, its manufacturing step includes:
1) the aluminum metal bar c1 of preparation reservation shape and weight;
2) will organize the serial modulus of continuity that mould forms more and be installed on a nut shaping machine (NutFormer)) or screw forming machine (Bolt Former), at first the height of this metal bar of cold forging pressure rolling c1 forms a first idiosome c2;
3) then first idiosome c2 cold-forge forming one can be stretched into the ring that stack shell 31, in the head tube 51 can be connected to head tube 51 bottoms and support shoulder 32, and support the non-through appearance hole 33 of end face moulding one of shoulder 32 in ring;
4) again with modulus of continuity repeatedly the aforementioned stack shell 31 of cold forging, ring support shoulder 32, and progressively stretch and hold the degree of depth in hole 33, and the pressure rolling whole height, and form the cushion hole 34 in a recessed and non-through appearance hole 33 in the top end face of stack shell 31;
5) continue with modulus of continuity repeatedly cold forging stretch and hold the degree of depth in hole 33, and will hold hole 33 reamings, thereby make cushion hole 34 can offset the drastic deformation amount in appearance hole 33;
6) last, just with modulus of continuity stack shell 31, ring are supported shoulder 32, hold hole 33 typings, and in the end face of stack shell 31 be penetrated with one with the perforation 35 of holding the concentric and aperture constriction in hole 33, make it to mold required lower bowl C, and see through modulus of continuity and engrave required pattern or LOGO, thereby the end face that supports shoulder 32 at ring forms pattern 36 or LOGO, and in order to reach required indication effect, this pattern 36 or LOGO can select to protrude according to actual needs or be recessed.
Learnt by above manufacture method, the manufacture method of the loam cake A of headset group of the present invention, upper bowl B and lower bowl C, it has the following advantages at least:
(1) crowded type metal bar a1, b1, c1 need not to heat and can process, and improve the thermal energy consumption of traditional forge hot processing;
(2) finished product does not have flash and defective material problem, need not to cut off flash or defective material with secondary processing, so do not have waste material and the follow-up deburring problem of traditional forge hot processing;
(3) the made finished size precision of the present invention is high, need not other turning processing, so can effectively reduce operation, and overcome waste material waste problem fully;
(4) the made finished product of the present invention is behind continuous cold forging, and whole density of material and intensity are all more good;
(5) the made finished product of the present invention only needs a Cold Forging can reach high precision and the good characteristics of superficiality.
See also Fig. 7 and Fig. 8, it further specifies upper bowl B among the present invention and pattern 36 settings of lower bowl C, and its visual user's demand and the selectivity setting does not perhaps arrange then necessarily is provided with pattern 14 as for loam cake A.
In sum, the production procedure that discloses among the present invention breaks through reform fully and commonly uses the problem that method for making production efficiency is low, the quality fraction defective is deteriorated, is the height creation on the technical concept, meets the patent application important document.The above only is preferred embodiment of the present invention, and every equalization of doing according to claim of the present invention changes and modifies, and all should still belong in the scope that the present invention contains.
Claims (10)
1. headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; It is characterized in that:
Loam cake is the modulus of continuity that the metal bar of reservation shape and weight forms with many groups mould to be carried out a series of cold forgings form, make it at the non-through jack of end face moulding one, the bottom surface is extruded with a pressure ring, then via modulus of continuity cold forging and with the typing of this jack and pressure ring repeatedly, so that this jack connects the two sides, thereby consist of described loam cake;
Upper bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, thereby have a ring that can be connected to the head tube top and support shoulder, a stack shell that can stretch in the head tube, and support the non-through appearance hole of end face moulding one of shoulder in ring, then via modulus of continuity repeatedly cold forging should support shoulder, stack shell and hold the hole by ring, then, the end face of stack shell form one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction;
Lower bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, thereby have a ring that can be connected to the head tube bottom and support shoulder, a stack shell that can stretch in the head tube, and support the non-through appearance hole of end face moulding one of shoulder in ring, then via modulus of continuity repeatedly cold forging should support shoulder, stack shell and hold the hole by ring, then, the end face of stack shell form one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction.
2. headset group manufacture method as claimed in claim 1 is characterized in that: the modulus of continuity of described loam cake, upper bowl and lower bowl is installed on a screw forming machine or a nut shaping machine, to carry out a series of Cold Forging.
3. headset group manufacture method as claimed in claim 1 or 2, it is characterized in that: described loam cake modulus of continuity is the height of cold forging pressure rolling metal bar at first, then at the described jack of the non-through step shape of end face cold-forge forming one, and at the outstanding described pressure ring of bottom surface cold-forge forming one; Again with modulus of continuity this jack of cold forging repeatedly, and make this jack connect the two sides, and form chamfering in the upper and lower ora terminalis of this jack; Continuation is with modulus of continuity repeatedly this jack reaming of cold forging and pressure rolling whole height, eliminating the chamfering of the upper and lower ora terminalis of jack, and goes out the make progress pushing face-drawing of convergent of diameter in the end face cold-forge forming; Just with modulus of continuity jack, pressure ring, pushing face-drawing are finalized the design at last, make it to mold described loam cake.
4. headset group manufacture method as claimed in claim 3 is characterized in that: described upper and lower bowl modulus of continuity is the height of cold forging pressure rolling metal bar at first, and then just cold-forge forming goes out stack shell, ring and supports shoulder, non-through appearance hole; Again with the modulus of continuity appearance hole depth that progressively stretches, and the pressure rolling whole height, and form the cushion hole in a fovea superior and non-through appearance hole in the stack shell bottom face; Continuation is with modulus of continuity cold forging this appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with this modulus of continuity stack shell, ring are supported shoulder, appearance hole, perforation moulding.
5. headset group manufacture method as claimed in claim 3 is characterized in that: described upper and lower bowl modulus of continuity is engraved required pattern, thereby makes this modulus of continuity mold corresponding pattern at upper and lower bowl surface.
6. headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; It is characterized in that: described loam cake is the modulus of continuity that the metal bar of reservation shape and weight forms with many groups mould to be carried out a series of cold forgings form, this metal bar height of cold forging pressure rolling at first, then in the non-through jack of end face cold-forge forming one, and in the outstanding pressure ring of bottom surface cold-forge forming one; Again with modulus of continuity this jack of cold forging repeatedly, and make this jack connect the two sides, and form chamfering at the upper and lower ora terminalis of this jack; Continuation is with modulus of continuity repeatedly this jack reaming of cold forging and pressure rolling whole height, eliminating the chamfering of the upper and lower ora terminalis of jack, and goes out the make progress pushing face-drawing of convergent of diameter in the end face cold-forge forming; Just with this modulus of continuity jack, pressure ring, pushing face-drawing are finalized the design at last, make it to mold described loam cake.
7. headset group manufacture method as claimed in claim 6, it is characterized in that: the modulus of continuity of described loam cake is engraved required pattern, thereby makes this modulus of continuity mold corresponding pattern at the loam cake pushing face-drawing.
8. such as claim 6 or 7 described headset group manufacture methods, it is characterized in that: described lower bowl shape and upper bowl are up and down and are symmetrical arranged, this upper and lower bowl is that the metal bar with reservation shape and weight carries out a series of cold forgings with the modulus of continuity that many groups mould forms, this metal bar height of cold forging pressure rolling at first, then just cold-forge forming goes out a ring that can be connected to the head tube outer end and supports shoulder, a stack shell that can stretch in the head tube, and supports the non-through appearance hole of shoulder end face moulding one in ring; Again with modulus of continuity repeatedly this stack shell of cold forging, ring support shoulder, and progressively stretch and hold hole depth, and the pressure rolling whole height, and form the cushion hole in a recessed and non-through appearance hole in the stack shell top end face; Continuation is with the modulus of continuity cold forging aforementioned appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with modulus of continuity stack shell, ring are supported shoulder, hold the hole typing, and in the end face of stack shell be penetrated with one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction, make it to mold described upper and lower bowl.
9. headset group manufacture method, this headset group include on the loam cake, a bowl and bowl once; It is characterized in that: described lower bowl shape and upper bowl are up and down and are symmetrical arranged, this upper and lower bowl is that modulus of continuity that the metal bar with reservation shape and weight forms with many groups mould carries out a series of cold forgings and forms, this metal bar height of cold forging pressure rolling at first, then just cold-forge forming goes out a ring that can be connected to the head tube outer end and supports shoulder, a stack shell that can stretch in the head tube, and supports the non-through appearance hole of shoulder end face moulding one in ring; This stack shell of cold forging, ring support shoulder, and the aforementioned appearance hole depth that progressively stretches, and pressure rolling whole height, and form the cushion hole in a recessed and non-through appearance hole in the stack shell top end face repeatedly with modulus of continuity again; Continuation is with modulus of continuity cold forging this appearance hole depth that stretches repeatedly, and will hold the hole reaming, thereby makes cushion hole can offset the drastic deformation amount in this appearance hole; At last, just with this modulus of continuity stack shell, ring are supported shoulder, hold the hole typing, and in the end face of stack shell be penetrated with one with hold that the hole is concentric to be communicated with and the perforation of aperture constriction, make it to mold described upper and lower bowl.
10. headset group manufacture method as claimed in claim 9 is characterized in that: described upper and lower bowl modulus of continuity is engraved required pattern, thereby makes this modulus of continuity go out corresponding pattern at the surface forming of upper and lower bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101131038A CN102107707B (en) | 2009-12-24 | 2009-12-24 | Head stock bowl group manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101131038A CN102107707B (en) | 2009-12-24 | 2009-12-24 | Head stock bowl group manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107707A CN102107707A (en) | 2011-06-29 |
| CN102107707B true CN102107707B (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101131038A Active CN102107707B (en) | 2009-12-24 | 2009-12-24 | Head stock bowl group manufacturing method |
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| CN (1) | CN102107707B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6508002B1 (en) * | 2000-11-22 | 2003-01-21 | Douglas Chiang | Bicycle crank arm and method of making same |
| CN2771089Y (en) * | 2004-12-31 | 2006-04-12 | 李坤元 | Cycle head bowl set |
| CN101168376A (en) * | 2006-10-26 | 2008-04-30 | 洛克塞格尔国际公司 | Cycle headset |
| CN201258065Y (en) * | 2008-09-22 | 2009-06-17 | 元大金属实业（深圳）有限公司 | Improved vehicle head bowl group rolling mechanism |
-
2009
- 2009-12-24 CN CN2009101131038A patent/CN102107707B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6508002B1 (en) * | 2000-11-22 | 2003-01-21 | Douglas Chiang | Bicycle crank arm and method of making same |
| CN2771089Y (en) * | 2004-12-31 | 2006-04-12 | 李坤元 | Cycle head bowl set |
| CN101168376A (en) * | 2006-10-26 | 2008-04-30 | 洛克塞格尔国际公司 | Cycle headset |
| CN201258065Y (en) * | 2008-09-22 | 2009-06-17 | 元大金属实业（深圳）有限公司 | Improved vehicle head bowl group rolling mechanism |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-170238A 2003.06.17 |
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| CN102107707A (en) | 2011-06-29 |
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