CN208651465U - A kind of universal-joint fork - Google Patents
A kind of universal-joint fork Download PDFInfo
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- CN208651465U CN208651465U CN201821404974.6U CN201821404974U CN208651465U CN 208651465 U CN208651465 U CN 208651465U CN 201821404974 U CN201821404974 U CN 201821404974U CN 208651465 U CN208651465 U CN 208651465U
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Abstract
The utility model discloses a kind of universal-joint forks, including ontology, ontology one end is equipped with a pair of of prong, one end on ontology far from prong is equipped with lug, splined hole and unthreaded hole are additionally provided on ontology, splined hole and unthreaded hole and ontology are coaxial, splined hole and unthreaded hole coaxial communication simultaneously run through ontology, splined hole is located at one end of lug, and unthreaded hole is located at prong one end, is equipped with bearing hole in a pair of of prong, bearing hole is coaxial and vertical with splined hole, it is equipped with the prong widened on the inside of prong, is equipped with step surface on the outside of prong, step surface is vertical with bearing hole；Threaded hole is provided on lug, lug end face is run through in threaded hole one end, and the threaded hole other end is coaxially connected with counterbore, and counterbore runs through lug other end far from one end of threaded hole；Threaded hole and the vertical splined hole of counterbore, are also provided with slot on the body, and slot is parallel with the axis of ontology, and slot is equipped with circular hole close to one end of prong, and slot is connected to splined hole and unthreaded hole.
Description
Technical field
The utility model relates to technical field of automobile parts, specially a kind of universal-joint fork.
Background technique
Automobile steering system is the critical system for controlling vehicle traveling direction, belongs to the safety member in auto parts and components,
Middle universal-joint fork is the key components and parts for wherein connecting steering wheel shaft and steering wheel, plays a part of to transmit torque and revolving speed,
The continual alternating load for bearing positive and negative rotation in work, once universal-joint fork failure this may result in lose control of one's vehicle, vehicle occur
It ruins people and dies accident, therefore safety will be paid close attention to the design of its structure of universal-joint fork in the steering system and manufacturing technique method,
And also to mitigate the weight of product as far as possible.
Summary of the invention
The purpose of this utility model is to provide a kind of universal-joint forks, have surface quality good, light-weight, unstressed collection
In, the high advantage of property stable and reliable for performance solves the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions: a kind of universal-joint fork, including ontology 1, described
1 one end of ontology is equipped with a pair of of prong 2, and one end far from the prong 2 is equipped with lug 5 on the ontology 1, goes back on the ontology 1
Equipped with splined hole 4 and unthreaded hole 6, the splined hole 4 and the unthreaded hole 6 and the ontology 1 are coaxial, the splined hole 4 and the light
6 coaxial communication of hole simultaneously runs through the ontology 1, and the splined hole 4 is located at one end of the lug 5, and the unthreaded hole 6 is located at the fork
2 one end of foot is equipped with bearing hole 3 in a pair of prong 2, and the bearing hole 3 is coaxial and vertical with the splined hole 4, described
It is equipped with the prong 201 widened on the inside of prong 2, step surface 202, the step surface 202 and the bearing are equipped on the outside of the prong 2
Hole 3 is vertical；Threaded hole 10 is provided on the lug 5,5 end face of lug, the screw thread are run through in described 10 one end of threaded hole
10 other end of hole is coaxially connected with counterbore 9, and the counterbore 9 runs through 5 other end of lug far from one end of the threaded hole 10
Face；The threaded hole 10 and the vertical splined hole 4 of the counterbore 9, are also provided with slot 8, the slot 8 on the ontology 1
Parallel with the axis of the ontology 1, the slot 8 is equipped with circular hole 7, the slot 8 and the spline close to one end of the prong 2
Hole 4 and unthreaded hole 6 are connected to.
With the above arrangement, ontology 1 is hollow structure, the position of object part splined shaft is adjusted when on the one hand facilitating installation,
Make steering system that there is optimal mated condition, on the other hand alleviate product weight, be conducive to vehicle loss of weight, reduces energy consumption；
8 tail portion of slot is equipped with circular hole 7, makes assembly that the spline of splined hole be made to be easy to be clamped on object part splined shaft, and do not have and answer
Power concentration phenomenon prevents occurring the safety that initial failure increases steering system in use process under the action of alternating load；
Splined hole 4 is located at one end of lug 5, bolt passed through counterbore 9 when assembly screws in threaded hole 10 and be tightened to regulation torque
Spline is readily clamped on object part splined shaft, is coupled without using conventional nut and bolt, reduces the increasing of spare and accessory parts quantity
Reliability is added.
Further, the slot 8 has angle 11 with the bearing hole 3, and the angle 11 is 87.06 ~ 88.06 degree.
With the above arrangement, angle direction and the direction of direct tangential force when using is made to be staggered, avoids being overlapped, prevent stress
Superposition improves the reliability of universal-joint fork, guarantees using safe.
A kind of manufacturing method of universal-joint fork of the utility model, includes the following steps:
It a, is the blank of 110mm length by 32 raw material sawing of φ；It is breached in the prior art using this specification blanking
Draw ratio reduces in conventional wrought processes less than 3 custom requirements and dials long process, that is, saved the energy, and be conducive to holding ten thousand
Streamline is consistent with product structure after to section fork forming, is conducive to the performance for improving universal-joint fork, improves reliability；
B, lower good blank is used method fast heating 8 ~ 12 seconds of induction heating, make blank temperature reach 1100 ~
1150 degree；By the above method, blank heating speed is fast, and the oxide skin amount of formation is just few, mitigates material consume and loses, saves metal material
Material, and improve production efficiency；
C, the blank heated is put into jumping-up in heading die and tentatively removes the oxide skin generated when heating and by blank
Jumping-up is to height 98-100mm, and continuous use compressed air sprays to blank and mold in upsetting process；Using this jumping-up specification,
On the one hand blank is prevented to be bent, other direction is conducive to the oxide skin generated when removal heating, and the oxide skin that will fall off in time
It blows away, keeps blank and mold clean, avoid forming waste product in the oxide skin that will fall off indentation blank；
D, the good blank one end of jumping-up is put into the ligulate working face 13 that ligulate is rived between die station 12, by blank end exhibition
Width carries out base to 34-36mm；Using the method, on the one hand blank to be formed to the part of prong 2 in subsequent forming process
Blank broadening is conducive to the subsequent molding of prong 2, while ligulate working face 13 is the arc surface of smooth transition, can prevent blank
It is folded in the molding of subsequent prong 2；
E, the good blank of base is further removed into surface scale quickly through high-pressure jet, and prevents blank temperature from dropping
It is low；By the above method, on the one hand guarantees that blank mouldability and prevents burn failure in subsequent processing and forming, form rear surface
It is high-quality；
F, the blank after cleaning completion oxide skin is put into the Preform Die of 250 ton numerical control electric screw press, is carried out
Preforming, pre- forging is 1 ~ 1.5mm thicker than finish-forging part；By the above method, is conducive to prong 2 and fills full, and be conducive to reduce
Deformation extent when finish forging protects mold；
G, the finish-forging die that pre- forging is put into 400 ton numerical control electric screw press is finally shaped, and by finish-forging
Part taking-up, which is placed in iron railings grid, carries out forced air-cooling with axial flow blower, is quickly cooled down finish-forging part uniformly, obtains uniform pearl
Body of light tissue carries out tissue preparation for subsequent flaw detection and heat treatment；
H, removing surface is carried out with strength shot-blasting machine after the completion of cooling；It is that subsequent fluorescent penetrating inspection performs by the above method
Prepare, clean surface is conducive to improve resolution ratio when fluorescent magnetic particle flaw detection, prevents interference phenomenon；
I, complete removing surface after forging fluorescent magnetic particle flaw detection is carried out in 3 hours, the surface defect that will test out into
Row reconditioning prevents defect expansion when subsequent heat treatment from causing scrap of the product；
J, flaw detection finished goods is sent into gas shield grill-hearth travelling oven and carries out modifier treatment, and control product surface decarburized layer is not
Greater than 0.15mm；By the above method, guarantees that universal-joint fork intensity does not reduce, improve the reliability of universal-joint fork.
K, removing surface is carried out with strength shot-blasting machine after the completion of heat treatment；Heat treatment rear universal joint is removed by the above method
The impurity of surface attachment is pitched, is got ready for subsequent fluorescent penetrating inspection, when clean surface is conducive to improve fluorescent magnetic particle flaw detection
Resolution ratio prevents interference phenomenon；
L, the forging after completing removing surface carries out fluorescent magnetic particle flaw detection in 3 hours, and Surface Quality carries out again
Confirmation；By the above method, prevents defective products from entering subsequent manufacturing procedure, on the one hand reduce the loss of subsequent processing, another party
Further improve the reliability of universal-joint fork in face；
M, flaw detection finished goods, which is put into the coining die of 500 t hydraulic press, carries out cold-coining processing；By the above method, into
The dimensional accuracy of the raising universal-joint fork of one step is conducive to subsequent machining positioning, improves the uniform quality of product after machining
Property；
N, antirust treatment is carried out with thin-layer rust-preventative oil to the good universal-joint fork of cold-coining；Make universal-joint fork by the above method
Non-corrosive in process is conducive to improve holding product quality；
O, with 1 outer circle of ontology and the bottom outlet of the positioning of 2 end of prong preboring splined hole 4 and unthreaded hole 6；
P, it is located on numerically controlled lathe with the bottom outlet of knife smart car splined hole 4 with 1 outer circle of ontology and 2 end of prong and completes light
The final processing in hole 6 and 4 end face of the splined hole processing of ontology 1；
R, clamped one time is positioned with the bottom outlet of splined hole 4 and its end face, prong 2, drilled and reamed on numerical control machining center with knife
It completes bearing hole 3, step surface 202 is gone out, using coaxial mounted two using coaxial mounted two face and side cutter Milling Machinings
Profile milling cutter Milling Machining discharging hole 201；By the above method, disposable clamping completes the processing of association size characteristic, is conducive to
Guarantee product quality, reduces clamping times, improves production efficiency；
S, it is positioning with bearing hole 3, splined hole 4 is pulled out on three-dimensional broaching machine；By the above method, when processing, is conducive to protect
Demonstrate,prove bearing hole 3 and 4 verticality precision of splined hole；
T, it is positioned with splined hole 4 and its end face, bores the bottom outlet of counterbore 9 and threaded hole 10 and that completes threaded hole 10 attacks spiral shell
Line；By the above method, disposable clamping completes the processing of association size characteristic, advantageously ensures that counterbore 9 and threaded hole 10
Concentricity prevents bolt and counterbore wall when assembly from interfering, reduces clamping times, improves production efficiency；
U, with 4 positioning process circular hole 7 of bearing hole 3 and splined hole；
V, it is positioned with bearing hole 3 and splined hole 4, mills out slot 8 and be connected to circular hole 7, splined hole 4, unthreaded hole 6, and guarantee to press from both sides
Angle 11 is 87.06 ~ 88.06 degree；
W, product supersonic wave cleaning machine is put into carry out cleaning oil removing and impurity and carry out antirust treatment；
X, core conductor in steel is passed through into splined hole 4 and unthreaded hole 6 magnetization fluorescent penetrating inspection is carried out to universal-joint fork and detected and move back
Magnetic.By the above method, the surface quality of universal-joint fork is further confirmed that, prevent the product of fold cracks from leaking out factory, into one
Step improves the reliability of universal-joint fork；
Y, it product is put into supersonic wave cleaning machine carries out cleaning and remove the residual magnetic powder being attached on part and carry out antirust treatment；
By the above method, universal-joint fork surface cleaning is kept, guarantees coating quality after assembly.
Further, high-pressure jet described in the step e is high-pressure water jet.Pass through above-mentioned setting, high-pressure water shot
Flowing pressure high flow rate is fast, big to the impact force of blank surface oxide skin, peeling effect is good, and in blank surface residence time pole
It is short, it not will lead to blank temperature decline, be conducive to subsequent forging molding.
The utility model has the beneficial effects that a kind of universal-joint fork provided by the utility model, is designed by reasonable structure
And rigorous process flow manufacture, it is stable, high reliablity excellent with good, light-weight, the unstressed concentration of surface quality, performance
Point.
Detailed description of the invention
Fig. 1 is the main view of the utility model.
Fig. 2 is the top view of the utility model.
Fig. 3 is the A-A cut-away view of Fig. 1.
Fig. 4 is the B-B cut-away view of Fig. 1.
Fig. 5 is that the utility model ligulate is rived die station structural front view.
Fig. 6 is that the utility model ligulate is rived die station structure right view.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-6, a kind of universal-joint fork, including ontology 1, described 1 one end of ontology is equipped with a pair of of prong 2, on ontology 1
One end far from prong 2 is equipped with lug 5, splined hole 4 and unthreaded hole 6 is additionally provided on ontology 1, splined hole 4 and unthreaded hole 6 and ontology 1 are together
Axis, splined hole 4 and 6 coaxial communication of unthreaded hole simultaneously run through ontology 1, and splined hole 4 is located at one end of lug 5, and unthreaded hole 6 is located at prong 2 one
It holds, bearing hole 3 is equipped in a pair of of prong 2, bearing hole 3 is coaxial and vertical with splined hole 4, and the fork widened is equipped on the inside of prong 2
Mouthfuls 201, step surface 202 is equipped on the outside of prong 2, and step surface 202 is vertical with bearing hole 3；Threaded hole 10, spiral shell are provided on lug 5
5 end face of lug is run through in 10 one end of pit, and 10 other end of threaded hole is coaxially connected with counterbore 9, the one end of counterbore 9 far from threaded hole 10
Through 5 other end of lug；Threaded hole 10 and the vertical splined hole 4 of counterbore 9, are also provided with slot 8, slot 8 and ontology on ontology 1
1 axis is parallel, and slot 8 is equipped with circular hole 7 close to one end of prong 2, and slot 8 is connected to splined hole 4 and unthreaded hole 6.
Preferably, slot 8 and bearing hole 3 have angle 11, and angle 11 is 87.06 ~ 88.06 degree.
A kind of manufacturing method of universal-joint fork of the utility model, includes the following steps:
It a, is the blank of 110mm length by 32 raw material sawing of φ；
B, lower good blank is used method fast heating 8 ~ 12 seconds of induction heating, make blank temperature reach 1100 ~
1150 degree；
C, the blank heated is put into jumping-up in heading die and tentatively removes the oxide skin generated when heating and by blank
Jumping-up is to height 98-100mm, and continuous use compressed air sprays to blank and mold in upsetting process；
D, the good blank one end of jumping-up is put into the ligulate working face 13 that ligulate is rived between die station 12, by blank end exhibition
Width carries out base to 34-36mm；
E, the good blank of base is further removed into surface scale quickly through high-pressure jet, and prevents blank temperature from dropping
It is low；
F, the blank after cleaning completion oxide skin is put into the Preform Die of 250 ton numerical control electric screw press, is carried out
Preforming, pre- forging is 1 ~ 1.5mm thicker than finish-forging part；
G, the finish-forging die that pre- forging is put into 400 ton numerical control electric screw press is finally shaped, and by finish-forging
Part taking-up, which is placed in iron railings grid, carries out forced air-cooling with axial flow blower, is quickly cooled down finish-forging part uniformly, obtains uniform pearl
Body of light tissue carries out tissue preparation for subsequent flaw detection and heat treatment；
H, removing surface is carried out with strength shot-blasting machine after the completion of cooling；
I, complete removing surface after forging fluorescent magnetic particle flaw detection is carried out in 3 hours, the surface defect that will test out into
Row reconditioning prevents defect expansion when subsequent heat treatment from causing scrap of the product；
J, flaw detection finished goods is sent into gas shield grill-hearth travelling oven and carries out modifier treatment, and control product surface decarburized layer is not
Greater than 0.15mm；
K, removing surface is carried out with strength shot-blasting machine after the completion of heat treatment；
L, the forging after completing removing surface carries out fluorescent magnetic particle flaw detection in 3 hours, and Surface Quality carries out again
Confirmation；
M, flaw detection finished goods, which is put into the coining die of 500 t hydraulic press, carries out cold-coining processing；
N, antirust treatment is carried out with thin-layer rust-preventative oil to the good universal-joint fork of cold-coining；
O, with 1 outer circle of ontology and the bottom outlet of the positioning of 2 end of prong preboring splined hole 4 and unthreaded hole 6；
P, it is located on numerically controlled lathe with the bottom outlet of knife smart car splined hole 4 with 1 outer circle of ontology and 2 end of prong and completes light
The final processing in hole 6 and 4 end face of the splined hole processing of ontology 1；
R, clamped one time is positioned with the bottom outlet of splined hole 4 and its end face, prong 2, drilled and reamed on numerical control machining center with knife
It completes bearing hole 3, step surface 202 is gone out, using coaxial mounted two using coaxial mounted two face and side cutter Milling Machinings
Profile milling cutter Milling Machining discharging hole 201；
S, it is positioning with bearing hole 3, splined hole 4 is pulled out on three-dimensional broaching machine；
T, it is positioned with splined hole 4 and its end face, bores the bottom outlet of counterbore 9 and threaded hole 10 and that completes threaded hole 10 attacks spiral shell
Line；
U, with 4 positioning process circular hole 7 of bearing hole 3 and splined hole；
V, it is positioned with bearing hole 3 and splined hole 4, mills out slot 8 and be connected to circular hole 7, splined hole 4, unthreaded hole 6, and guarantee to press from both sides
Angle 11 is 87.06 ~ 88.06 degree；
W, product supersonic wave cleaning machine is put into carry out cleaning oil removing and impurity and carry out antirust treatment；
X, core conductor in steel is passed through into splined hole 4 and unthreaded hole 6 magnetization fluorescent penetrating inspection is carried out to universal-joint fork and detected and move back
Magnetic；
Y, it product is put into supersonic wave cleaning machine carries out cleaning and remove the residual magnetic powder being attached on part and carry out antirust treatment.
Preferably, the high-pressure jet in step e is high-pressure water jet.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (2)
1. a kind of universal-joint fork, it is characterised in that: including ontology (1), described ontology (1) one end is equipped with a pair of of prong (2), described
One end on ontology (1) far from the prong (2) is equipped with lug (5), is additionally provided with splined hole (4) and unthreaded hole on the ontology (1)
(6), coaxially, the splined hole (4) and the unthreaded hole (6) are same for the splined hole (4) and the unthreaded hole (6) and the ontology (1)
Axis is connected to and runs through the ontology (1), and the splined hole (4) is located at one end of the lug (5), and the unthreaded hole (6) is located at institute
State prong (2) one end, be equipped with bearing hole (3) on a pair of prong (2), the bearing hole (3) it is coaxial and with the spline
Hole (4) vertically, is equipped with the prong (201) widened, is equipped with step surface (202) on the outside of the prong (2) on the inside of the prong (2),
The step surface (202) is vertical with the bearing hole (3)；Threaded hole (10), the threaded hole are provided on the lug (5)
(10) lug (5) end face is run through in one end, and threaded hole (10) other end is coaxially connected with counterbore (9), the counterbore (9)
The lug (5) other end is run through in one end far from the threaded hole (10)；The threaded hole (10) and the counterbore (9) are equal
The vertical splined hole (4), is also provided with slot (8) on the ontology (1), and the axis of the slot (8) and the ontology (1) is flat
Row, the slot (8) are equipped with circular hole (7) close to the one end of the prong (2), the slot (8) and the splined hole (4) and light
Hole (6) connection.
2. a kind of universal-joint fork according to claim 1, it is characterised in that: the slot (8) has with the bearing hole (3)
Angle (11), the angle (11) are 87.06 ~ 88.06 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404974.6U CN208651465U (en) | 2018-08-29 | 2018-08-29 | A kind of universal-joint fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404974.6U CN208651465U (en) | 2018-08-29 | 2018-08-29 | A kind of universal-joint fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651465U true CN208651465U (en) | 2019-03-26 |
Family
ID=65792052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821404974.6U Active CN208651465U (en) | 2018-08-29 | 2018-08-29 | A kind of universal-joint fork |
Country Status (1)
| Country | Link |
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| CN (1) | CN208651465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869560A (en) * | 2018-08-29 | 2018-11-23 | 浙江正昌锻造股份有限公司 | A kind of universal-joint fork |
-
2018
- 2018-08-29 CN CN201821404974.6U patent/CN208651465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869560A (en) * | 2018-08-29 | 2018-11-23 | 浙江正昌锻造股份有限公司 | A kind of universal-joint fork |
| CN108869560B (en) * | 2018-08-29 | 2023-12-19 | 浙江正昌锻造股份有限公司 | Universal joint fork |
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