CN109131692A - A kind of back fork of bicycle bone structure, its manufacturing method and bicycle - Google Patents
A kind of back fork of bicycle bone structure, its manufacturing method and bicycle Download PDFInfo
- Publication number
- CN109131692A CN109131692A CN201810933580.8A CN201810933580A CN109131692A CN 109131692 A CN109131692 A CN 109131692A CN 201810933580 A CN201810933580 A CN 201810933580A CN 109131692 A CN109131692 A CN 109131692A
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- tubing
- furcula
- left back
- bicycle
- behind
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 241000567465 Furcula Species 0.000 claims abstract description 78
- 238000005452 bending Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 19
- 238000000137 annealing Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 16
- 238000007127 saponification reaction Methods 0.000 claims description 16
- 238000005496 tempering Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000005237 degreasing agent Methods 0.000 claims description 5
- 239000013527 degreasing agent Substances 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 description 69
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 69
- 239000004411 aluminium Substances 0.000 description 63
- 238000003466 welding Methods 0.000 description 14
- 238000000465 moulding Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005242 forging Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Classifications
-
- 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
- B62K21/02—Front wheel forks or equivalent, e.g. single tine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The present invention discloses a kind of back fork of bicycle bone structure, it is related to bicycle art, including rear furcula, furcula after furcula includes left back furcula and is right after described, the left back furcula includes left back yoke and left back hook piece, furcula is including hooking piece behind yoke behind the right side and the right side behind the right side, the left back yoke and left back hook piece are integral type setting, yoke and hook piece behind the right side are integral type setting behind the right side, furcula is asymmetric setting after the left back furcula and the right side, and wherein the angle of the rear furcula outward bending of side is greater than the angle of the outward bending of the rear furcula of the other side.Invention additionally discloses a kind of manufacturing method of back fork of bicycle bone structure and a kind of bicycles.Not only intensity is big and precision is high for the back fork of bicycle bone structure, and reduces human cost.
Description
Technical field
The present invention relates to bicycle arts, and in particular to a kind of back fork of bicycle bone structure, its manufacturing method and bicycle.
Background technique
Back fork of bicycle bone structure is largely welded together using individually rear furcula with piece is hooked on existing market, is reached
The effect of assembly.Back fork of bicycle bone structure has the following problems on existing market: rear furcula and the welding bead appearance for hooking piece welding
Unsightly, the step of welding is easy to make pipe deformations, and precision deviation is big, and integrally-built intensity is low, welding increases manpower
Cost.
Summary of the invention
The first purpose of the invention is to provide a kind of intensity greatly and back fork of bicycle bone structure with high accuracy.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of back fork of bicycle bone structure, including rear furcula, furcula after the rear furcula includes left back furcula and is right are described
Left back furcula includes left back yoke and left back hook piece, and furcula is including hooking piece, the left back fork behind yoke behind the right side and the right side behind the right side
Arm and left back hook piece are integral type setting, hook piece behind yoke and the right side behind the right side as integral type setting, the left back furcula and the right side
Furcula is asymmetric setting afterwards, and wherein the angle of the rear furcula outward bending of side is greater than the outward bending of the rear furcula of the other side
Angle.
Preferably, the left back yoke is solid setting close to left back one end for hooking piece, the other end is hollow setting；Institute
One end of piece is hooked as solid setting after stating the nearly right side of right rear fork arm rest, and the other end is hollow setting.Using the above structure, solid one
Hook piece is processed at end, makes to hook piece and rear yoke forms integral structure, compared with welding, intensity is bigger, and safety is more preferable, eliminates
Because of the deformation that welding generates, reduce subsequent correction, saved the working hour of correction, greatly reduced accuracy error, increases
Shock-proof effect.
Preferably, the left back yoke is held level with both hands with left back hook piece close to the one of left back yoke close to left back one end for hooking piece
Row but be not overlapped, hooked after the right rear fork arm rest is close right one end of piece with it is right after to hook piece one end of yoke behind the right side parallel but not
It is overlapped.
A second object of the present invention is to provide a kind of manufacturing methods of back fork of bicycle bone structure.
A kind of manufacturing method of back fork of bicycle bone structure, comprising the following steps:
1) tubing of the furcula after manufacturing left back furcula and the right side is forged；
2) saponification process is carried out to the tubing forged；
3) tubing after saponification process is carried out taking out pipe processing, tubing is processed into thickness in 2.0MM or less；
4) pipe will be taken out treated that tubing makes annealing treatment；
5) tubing after annealing is subjected to draw processing；
6) draw treated tubing is pressed up and down by the mold with mold cavities, is pressed into the shape of needs；
7) it is processed finally by CNC, the hook plate shape of tubing one end is milled out to come.
Preferably, in the step 1) for forge one end be it is solid, the other end is hollow tubing.
Preferably, saponification process in the step 2) the following steps are included:
A) first tubing is put into the room temperature sink with degreasing agent 8-16 minutes；
B) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
C) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
D) tubing is put into film agent temperature 2-4 minutes in the sink of 80-90 degree again；
E) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
F) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
G) finally tubing is put into 2-8 minutes in the sink that lubricant temperature is 80-90 degree.
Preferably, if tubing is 6061 materials, tubing, which is placed in temperature, is in the annealing of the step 4)
0.8-1.2 hours in 400-460 DEG C of tempering furnace, tubing webster hardness is to 0-3 degree after Temperature fall.
Preferably, if tubing is 7005 materials, tubing, which is placed in temperature, is in the annealing of the step 4)
1.3-1.8 hours in 400-460 DEG C of tempering furnace, tubing webster hardness is in 6-8 degree after Temperature fall.
Preferably, if tubing is 6066 materials, tubing, which is placed in temperature, is in the annealing of the step 4)
0.8-1.2 hours in 400-460 DEG C of tempering furnace, tubing webster hardness is in 3-5 degree after Temperature fall.
Third object of the present invention is to provide a kind of bicycles.
A kind of bicycle, including such as above-mentioned back fork of bicycle bone structure.
The beneficial effects of the present invention are:
1. the left back yoke of back fork of bicycle bone structure of the invention and left back hooks piece are that integral type is arranged, behind the right side yoke and
It is that integral type is arranged that piece is hooked behind the right side, and specious, overall structural strength is big, and precision is high, and stability is high, eliminate left back yoke and
The welding step of yoke and hook piece behind the right side, reduces subsequent correction, to reduce after the left back welding step for hooking piece and the right side
Human cost；
2. the left back furcula of back fork of bicycle bone structure of the invention and it is right after furcula be asymmetric setting, wherein side
The angle of furcula outward bending is greater than the angle of the outward bending of the rear furcula of the other side afterwards, and the big side of outward bending degree is certainly
The drive mechanism being arranged on driving hind axle leaves space, and the small side of outward bending degree tightly holds hind axle, knot
Structure is compact and firm, is suitable for minibike field, is readily transported and installs；
3. in the manufacturing method of back fork of bicycle bone structure of the invention, metal can be eliminated in smelting process by forging
The defects of as cast condition of generation is loose optimizes heterogeneous microstructure, simultaneously because complete metal streamline is saved, the machinery of forging
Performance is better than the casting of same material；
4. tube surfaces lubrication and formation in the manufacturing method of back fork of bicycle bone structure of the invention, after saponification process
One layer of epithelium can prevent next procedure and pull；
5. annealing can prevent tubing due to hardness is really up to the mark in the manufacturing method of back fork of bicycle bone structure of the invention
It is pulled off in next procedure；
6. in the manufacturing method of back fork of bicycle bone structure of the invention, passing through the thickness of draw process reform tubing hollow end
Degree, to mitigate weight, change the bore of hollow end part by draw technique, tubing is again under intensity standard up to standard
Reach the apparent size of beautiful moulding and needs by the compression moulding of mold.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of back fork of bicycle bone structure in the embodiment of the present invention.
Appended drawing reference: 1, left back furcula；2, furcula behind the right side；3, left back yoke；4, left back hook piece；5, yoke behind the right side；6, right
After hook piece.
Specific embodiment
Embodiment 1
As shown in Figure 1, the embodiment of the present invention provides a kind of back fork of bicycle bone structure, which includes
Furcula afterwards, furcula 2 after rear furcula includes left back furcula 1 and is right, left back furcula 1 includes left back yoke 3 and left back hook piece 4, after right
Furcula 2 includes yoke 5 and hook piece 6 behind the right side behind the right side, and left back yoke 3 is that integral type is arranged with left back hook piece 4, yoke 5 and the right side behind the right side
Hook piece 6 afterwards as integral type setting, furcula 2 is asymmetric setting, the angle of left back 1 outward bending of furcula after left back furcula 1 and the right side
Greater than the angle of the outward bending of furcula 2 behind the right side.
Left back yoke 3 is solid setting close to left back one end for hooking piece 4, and the other end is hollow setting；Yoke 5 is close behind the right side
One end that piece 6 is hooked behind the right side is solid setting, and the other end is hollow setting, and hook piece is processed into solid one end, makes to hook piece and rear fork
Arm forms integral structure, and compared with welding, intensity is bigger, and safety is more preferable, eliminates the deformation generated by welding, reduces
Subsequent correction has saved the working hour of correction, has greatly reduced accuracy error, increase shock-proof effect.
Piece 6 is hooked in the form of sheets behind yoke 5 and the right side behind left back yoke 3, left back hook piece 4, the right side, and left back yoke 3 is close to left back hook
One end of piece 4 is parallel close to one end of left back yoke 3 with left back hook piece 4 but is not overlapped, and yoke 5 hooks piece 6 behind the right side behind the right side
Hooking piece 6 behind one end and the right side, one end of yoke 5 is parallel behind the right side but is not overlapped.
A kind of manufacturing method of back fork of bicycle bone structure, comprising the following steps:
1) aluminium tube selects 6061 materials, forges the aluminium tube of the furcula 2 after manufacturing left back furcula 1 and the right side, aluminum pipe
One end of material be it is solid, the other end is hollow；
2) to the aluminium tube progress saponification process come is forged, saponification process is the following steps are included: a) first put aluminium tube
Enter in the room temperature sink with aluminium degreasing agent 12 minutes；B) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；C) again by aluminium
Tubing is put into the Rinsing Area of room temperature 1 minute；D) aluminium tube is put into film agent temperature 3 points in 85 degree of sink again
Clock；E) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；F) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；g)
Finally aluminium tube is put into the sink for being 85 degree with lubricant temperature 5 minutes.
3) aluminium tube after saponification process is carried out taking out pipe processing, mandrel is inserted into aluminium tube through external mold, control is passed through
The aluminium tube thickness of needs is extracted in gap between core spindle and external mold out, and aluminium tube is processed into thickness in 1.5MM；
4) pipe will be taken out treated that aluminium tube makes annealing treatment, aluminium tube is placed in the tempering furnace that temperature is 430 DEG C
In 1 hour, aluminium tube webster hardness is to 0-3 degree after Temperature fall.
5) aluminium tube after annealing is subjected to draw processing, is inwardly squeezed by 4 sheet molds that will be rotated, makes aluminum pipe
The internal-and external diameter of material generates variation, to reach the moulding of different size caliber, so as to the assembly and moulding of vehicle frame below；
6) draw treated aluminium tube is pressed up and down by the mold with mold cavities, is pressed into the shape of needs
Shape；
7) it is processed finally by CNC, the hook plate shape of aluminium tube one end is milled out to come.
A kind of bicycle, including such as above-mentioned back fork of bicycle bone structure.
Embodiment 2
As shown in Figure 1, the embodiment of the present invention provides a kind of back fork of bicycle bone structure, which includes
Furcula afterwards, furcula 2 after rear furcula includes left back furcula 1 and is right, left back furcula 1 includes left back yoke 3 and left back hook piece 4, after right
Furcula 2 includes yoke 5 and hook piece 6 behind the right side behind the right side, and left back yoke 3 is that integral type is arranged with left back hook piece 4, yoke 5 and the right side behind the right side
Hook piece 6 afterwards as integral type setting, furcula 2 is asymmetric setting, the angle of left back 1 outward bending of furcula after left back furcula 1 and the right side
Greater than the angle of the outward bending of furcula 2 behind the right side.
Left back yoke 3 is solid setting close to left back one end for hooking piece 4, and the other end is hollow setting；Yoke 5 is close behind the right side
One end that piece 6 is hooked behind the right side is solid setting, and the other end is hollow setting, and hook piece is processed into solid one end, makes to hook piece and rear fork
Arm forms integral structure, and compared with welding, intensity is bigger, and safety is more preferable, eliminates the deformation generated by welding, reduces
Subsequent correction has saved the working hour of correction, has greatly reduced accuracy error, increase shock-proof effect.
Piece 6 is hooked in the form of sheets behind yoke 5 and the right side behind left back yoke 3, left back hook piece 4, the right side, and left back yoke 3 is close to left back hook
One end of piece 4 is parallel close to one end of left back yoke 3 with left back hook piece 4 but is not overlapped, and yoke 5 hooks piece 6 behind the right side behind the right side
Hooking piece 6 behind one end and the right side, one end of yoke 5 is parallel behind the right side but is not overlapped.
A kind of manufacturing method of back fork of bicycle bone structure, comprising the following steps:
1) aluminium tube selects 7005 materials, forges the aluminium tube of the furcula 2 after manufacturing left back furcula 1 and the right side, aluminum pipe
One end of material be it is solid, the other end is hollow；
2) to the aluminium tube progress saponification process come is forged, saponification process is the following steps are included: a) first put aluminium tube
Enter in the room temperature sink with aluminium degreasing agent 12 minutes；B) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；C) again by aluminium
Tubing is put into the Rinsing Area of room temperature 1 minute；D) aluminium tube is put into film agent temperature 3 points in 85 degree of sink again
Clock；E) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；F) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；g)
Finally aluminium tube is put into the sink for being 85 degree with lubricant temperature 5 minutes.
3) aluminium tube after saponification process is carried out taking out pipe processing, mandrel is inserted into aluminium tube through external mold, control is passed through
The aluminium tube thickness of needs is extracted in gap between core spindle and external mold out, and aluminium tube is processed into thickness in 1.5MM；
4) pipe will be taken out treated that aluminium tube makes annealing treatment, aluminium tube is placed in the tempering furnace that temperature is 430 DEG C
In 1.5 hours, aluminium tube webster hardness is to 6-8 degree after Temperature fall.
5) aluminium tube after annealing is subjected to draw processing, is inwardly squeezed by 4 sheet molds that will be rotated, makes aluminum pipe
The internal-and external diameter of material generates variation, to reach the moulding of different size caliber, so as to the assembly and moulding of vehicle frame below；
6) draw treated aluminium tube is pressed up and down by the mold with mold cavities, is pressed into the shape of needs
Shape；
7) it is processed finally by CNC, the hook plate shape of aluminium tube one end is milled out to come.
A kind of bicycle, including such as above-mentioned back fork of bicycle bone structure.
Embodiment 3
As shown in Figure 1, the embodiment of the present invention provides a kind of back fork of bicycle bone structure, which includes
Furcula afterwards, furcula 2 after rear furcula includes left back furcula 1 and is right, left back furcula 1 includes left back yoke 3 and left back hook piece 4, after right
Furcula 2 includes yoke 5 and hook piece 6 behind the right side behind the right side, and left back yoke 3 is that integral type is arranged with left back hook piece 4, yoke 5 and the right side behind the right side
Hook piece 6 afterwards as integral type setting, furcula 2 is asymmetric setting, the angle of left back 1 outward bending of furcula after left back furcula 1 and the right side
Greater than the angle of the outward bending of furcula 2 behind the right side.
Left back yoke 3 is solid setting close to left back one end for hooking piece 4, and the other end is hollow setting；Yoke 5 is close behind the right side
One end that piece 6 is hooked behind the right side is solid setting, and the other end is hollow setting, and hook piece is processed into solid one end, makes to hook piece and rear fork
Arm forms integral structure, and compared with welding, intensity is bigger, and safety is more preferable, eliminates the deformation generated by welding, reduces
Subsequent correction has saved the working hour of correction, has greatly reduced accuracy error, increase shock-proof effect.
Piece 6 is hooked in the form of sheets behind yoke 5 and the right side behind left back yoke 3, left back hook piece 4, the right side, and left back yoke 3 is close to left back hook
One end of piece 4 is parallel close to one end of left back yoke 3 with left back hook piece 4 but is not overlapped, and yoke 5 hooks piece 6 behind the right side behind the right side
Hooking piece 6 behind one end and the right side, one end of yoke 5 is parallel behind the right side but is not overlapped.
A kind of manufacturing method of back fork of bicycle bone structure, comprising the following steps:
1) aluminium tube selects 6066 materials, forges the aluminium tube of the furcula 2 after manufacturing left back furcula 1 and the right side, aluminum pipe
One end of material be it is solid, the other end is hollow；
2) to the aluminium tube progress saponification process come is forged, saponification process is the following steps are included: a) first put aluminium tube
Enter in the room temperature sink with aluminium degreasing agent 12 minutes；B) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；C) again by aluminium
Tubing is put into the Rinsing Area of room temperature 1 minute；D) aluminium tube is put into film agent temperature 3 points in 85 degree of sink again
Clock；E) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；F) aluminium tube is put into the Rinsing Area of room temperature 1 minute again；g)
Finally aluminium tube is put into the sink for being 85 degree with lubricant temperature 5 minutes.
3) aluminium tube after saponification process is carried out taking out pipe processing, mandrel is inserted into aluminium tube through external mold, control is passed through
The aluminium tube thickness of needs is extracted in gap between core spindle and external mold out, and aluminium tube is processed into thickness in 1.5MM；
4) pipe will be taken out treated that aluminium tube makes annealing treatment, aluminium tube is placed in the tempering furnace that temperature is 430 DEG C
In 1 hour, aluminium tube webster hardness is to 3-5 degree after Temperature fall.
5) aluminium tube after annealing is subjected to draw processing, is inwardly squeezed by 4 sheet molds that will be rotated, makes aluminum pipe
The internal-and external diameter of material generates variation, to reach the moulding of different size caliber, so as to the assembly and moulding of vehicle frame below；
6) draw treated aluminium tube is pressed up and down by the mold with mold cavities, is pressed into the shape of needs
Shape；
7) it is processed finally by CNC, the hook plate shape of aluminium tube one end is milled out to come.
A kind of bicycle, including such as above-mentioned back fork of bicycle bone structure.
Claims (10)
1. a kind of back fork of bicycle bone structure, which is characterized in that including rear furcula, after the rear furcula includes left back furcula and is right
Furcula, the left back furcula include left back yoke and left back hook piece, and furcula is including hooking piece behind yoke behind the right side and the right side behind the right side, institute
It is integral type setting that left back yoke, which is stated, with left back hook piece, and yoke and hook piece behind the right side are integral type setting behind the right side, described left back
Furcula is asymmetric setting after furcula and the right side, and wherein the angle of the rear furcula outward bending of side is greater than the rear furcula of the other side
The angle of outward bending.
2. back fork of bicycle bone structure according to claim 1, which is characterized in that the left back yoke is close to left back hook piece
One end be solid setting, the other end be hollow setting；One end that piece is hooked behind the nearly right side of the right rear fork arm rest is solid setting, separately
One end is hollow setting.
3. back fork of bicycle bone structure according to claim 1, which is characterized in that the left back yoke is close to left back hook piece
One end it is parallel close to one end of left back yoke with left back hook piece but be not overlapped, the right rear fork arm rest it is close it is right after hook one end of piece
One end of yoke is parallel behind the right side but is not overlapped with piece is hooked behind the right side.
4. a kind of manufacturing method of back fork of bicycle bone structure as described in any one of claims 1-3, which is characterized in that including
Following steps:
1) tubing of the furcula after manufacturing left back furcula and the right side is forged；
2) saponification process is carried out to the tubing forged；
3) tubing after saponification process is carried out taking out pipe processing, tubing is processed into thickness in 2.0MM or less；
4) pipe will be taken out treated that tubing makes annealing treatment；
5) tubing after annealing is subjected to draw processing；
6) draw treated tubing is pressed up and down by the mold with mold cavities, is pressed into the shape of needs；
7) it is processed finally by CNC, the hook plate shape of tubing one end is milled out to come.
5. the manufacturing method of the back fork of bicycle bone structure according to claim 4, which is characterized in that the step
1) in for forge one end be it is solid, the other end is hollow tubing.
6. the manufacturing method of the back fork of bicycle bone structure according to claim 4, which is characterized in that the step
2) saponification process in the following steps are included:
A) first tubing is put into the room temperature sink with degreasing agent 8-16 minutes；
B) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
C) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
D) tubing is put into film agent temperature 2-4 minutes in the sink of 80-90 degree again；
E) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
F) tubing is put into the Rinsing Area of room temperature 0.5-1.5 minutes again；
G) finally tubing is put into 2-4 minutes in the sink that lubricant temperature is 80-90 degree.
7. the manufacturing method of the back fork of bicycle bone structure according to claim 4, which is characterized in that the step
4) in annealing, if tubing is 6061 materials, tubing is placed in 0.8-1.2 in the tempering furnace that temperature is 400-460 DEG C
Hour, tubing webster hardness is to 0-3 degree after Temperature fall.
8. the manufacturing method of the back fork of bicycle bone structure according to claim 4, which is characterized in that the step
4) in annealing, if tubing is 7005 materials, tubing is placed in 1.3-1.8 in the tempering furnace that temperature is 400-460 DEG C
Hour, tubing webster hardness is in 6-8 degree after Temperature fall.
9. the manufacturing method of the back fork of bicycle bone structure according to claim 4, which is characterized in that the step
4) in annealing, if tubing is 6066 materials, tubing is placed in 0.8-1.2 in the tempering furnace that temperature is 400-460 DEG C
Hour, tubing webster hardness is in 3-5 degree after Temperature fall.
10. a kind of bicycle, which is characterized in that including back fork of bicycle bone structure as described in any one of claims 1-3.
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|---|---|---|---|
| CN201810933580.8A CN109131692A (en) | 2018-08-16 | 2018-08-16 | A kind of back fork of bicycle bone structure, its manufacturing method and bicycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933580.8A CN109131692A (en) | 2018-08-16 | 2018-08-16 | A kind of back fork of bicycle bone structure, its manufacturing method and bicycle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561042A (en) * | 2019-08-28 | 2019-12-13 | 升励五金（深圳）有限公司 | Method, device and equipment for forming body of scooter and readable storage medium |
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