CN104620005A - Yoke for universal joint and production method therefor - Google Patents
Yoke for universal joint and production method therefor Download PDFInfo
- Publication number
- CN104620005A CN104620005A CN201480002326.6A CN201480002326A CN104620005A CN 104620005 A CN104620005 A CN 104620005A CN 201480002326 A CN201480002326 A CN 201480002326A CN 104620005 A CN104620005 A CN 104620005A
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- Prior art keywords
- mentioned
- universal joint
- piece
- base portion
- press
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
- F16D3/382—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another constructional details of other than the intermediate member
- F16D3/387—Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork
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- 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
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/762—Coupling members for conveying mechanical motion, e.g. universal joints
- B21K1/765—Outer elements of coupling members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
- F16D1/068—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
- F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
- F16D1/0858—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to the elasticity of the hub (including shrink fits)
Abstract
A yoke for a universal joint, having provided in a coupling hole (14a): a press-fit hole section (21) for press-fitting an end section of a shaft, provided between a center section and another end section in the axial direction; and a non-press-fit hole section (22) having a larger diameter than the press-fit hole section (21) and not having the shaft end section press-fitted therein, provided at one end section in the axial direction.
Description
Technical field
The present invention relates to and form the Y-piece of universal-joint-pin type universal joint (Hooks coupling universal coupling) and the improvement of its manufacture method, this universal-joint-pin type universal joint can transmitting torque for being connected to each other to by the running shaft forming the steering gear.
Background technique
The steering gear of automobile is formed as shown in Figure 11.The action of the steering wheel 1 of driver's operation is transmitted to the input shaft 6 of steering gear unit 5 via steering shaft 2, universal joint 3a, jack shaft 4, other universal joint 3b.And be configured to, utilize the pinion and rack being built in steering gear unit 5 to carry out push-and-pull pairing left and right drag link 7,7, and a pair handling maneuver wheel give the suitable steering angle corresponding with the operation amount of steering wheel 1 to the left and right.
As universal joint 3a, 3b of being arranged at such the steering gear, generally speaking, widely use Figure 12 illustrate represent, the universal-joint-pin type universal joint that is referred to as Hooks coupling universal coupling.Universal joint 3a, 3b possess respectively a pair Y-piece 8a, 8b (8c, 8d) and by connected to each other for the front end of a pair Y-piece 8a, 8b (8c, 8d) be the cross axle 9 that can swing.The base portion of a Y-piece 8a (8c) is can the mode of transmitting torque combine fixing in the rearward end (front end as the female axle 11 of hollow shaft) of the male axle 10 as solid shaft being formed jack shaft 4.The base portion of another Y-piece 8b (8d) is can the mode of transmitting torque combine fixing at the front end (rearward end of input shaft 6) of steering shaft 2.Jack shaft 4 is by with can transmitting torque and the mode of relative displacement vertically can combine male axle 10 and female axle 11 forms.
Figure 13 represents as Y-piece 8a, a 8c forming universal joint 3a, 3b and can use, be referred to as the first case in the past constructed of the Y-piece indulged into formula.As in the past well-known in recorded in patent documentation 1 grade, by implementing to metallic sheet materials such as steel plates the punch process comprising punch press process and bending, or by implementing forging processing, punch press process to metallic material such as steel poles, carry out the Y-piece 8e shown in integrally manufactured Figure 13.Such Y-piece 8e possesses base portion 12 and a pair arm 13,13.Base portion 12 is formed as approximate circle ring-type, has vertically the joining hole 14 that (above-below direction of Figure 13) is formed in radial center portion.Joining hole 14 is circular holes that inner peripheral surface is formed as simple barrel surface, or forms the sawtooth hole of concavity sawtooth at the inner peripheral surface of such circular hole.Arm 13,13 is arranged with the state outstanding to axially one-sided (upside of Figure 13) extension from two positions becoming radial opposition side of base portion 12.At the front end of arm 13,13, be formed with mutually concentric circular hole 15,15 respectively.Under the state being assembled with universal-joint-pin type universal joint, in circular hole 15,15, the bearing cup 16,16 (with reference to Figure 12) of embedded fixing bottomed cylindrical respectively.Further, in bearing cup 16,16, respectively can the end of free rotation ground supporting cross axle 9 (with reference to Figure 12) via many spicules 17,17.The inner side surface of mutually opposing arm 13,13 and the axial single side face of base portion 12 continuous smoothly respectively by concave curved surface.
When Y-piece 8e as described above base portion 12 in conjunction with jack shaft etc. make the end of the axle 18 of cylindric or circular tube shaped, first, by the joining hole 14 (embedded in an interference fit) of the end of axle 18 press-in base portion 12.In addition, when joining hole 14 is sawtooth holes, convex sawtooth is formed at the end outer circumferential face of axle 18.And, along with press-in, engage with sawtooth hole while there is magnitude of interference to make convex sawtooth.Next, implement to weld by the bight between the axial another side (downside of Figure 13) to base portion 12 and the outer circumferential face of axle 18, set up weld metal 19 each other on two sides.As a result, base portion 12 at Y-piece 8e is become so that the mode of transmitting torque the state of the end of axle 18 can be fixed with.
Figure 14 represents the second case in the past constructed indulged into formula Y-piece.When the Y-piece 8f of the second case constructed in the past, in base portion 12a, at peripheral part of axial the other end of joining hole 14, be provided with compared with peripheral part of the axial the other end near joining hole 14, outstanding ring portion 20 that radial wall thickness diminishes.And, to set up the state of weld metal 19 between the outer circumferential face of outstanding ring portion 20 and the outer circumferential face of front-end face and axle 18, outstanding ring portion 20 and axle 18 are welded.
When such second case constructed in the past, when carrying out above-mentioned welding, the outstanding ring portion 20 (heat putting on outstanding ring portion 20 can be made to be difficult to disperse to the axial intermediate portion side of base portion 12a) of heating can be concentrated.Therefore, it is possible to increase the outer circumferential face of outstanding ring portion 20 and the penetration amount of front-end face, thus correspondingly easily guarantee the intensity of weld part.
When above-mentioned each construct in the past, using overall for joining hole 14 as the press-in hole portion being used for the end being pressed into axle 18.In the skin section of such joining hole 14, along with the end of press-in axle 18, produce larger circumferential stress (tensile stress of circumferencial direction).On the other hand, at the one end open peripheral portion (the P portion of Figure 13, Figure 14) of the joining hole 14 in the continuous portion as the axial single side face of base portion 12 (12a) and the inner peripheral surface of joining hole 14, when carrying out transmission of torque under the state being assembled with universal-joint-pin type universal joint, produce result from reverse stress concentrate.That is, when above-mentioned each construct in the past, at the one end open peripheral portion (P portion) of joining hole 14, overlapped generation is concentrated with being pressed into the larger circumferential stress that causes and resulting from the stress reversed, thus the maximum value of stress becomes large.Therefore, the design in order to ensure the intensity of base portion 12 (12a) becomes difficult.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2013-24369 publication
Summary of the invention
Invent problem to be solved
The present invention is the invention in view of the above circumstances and for realizing following structure and its manufacture method, namely, using along with in the end of joining hole press-in axle, skin section in the press-in hole portion of joining hole produces larger circumferential stress and in transmission of torque time to produce at the one end open peripheral portion of joining hole and result from universal joint Y-piece that the stress that reverses concentrates as object, easily can carry out the design for guaranteeing intensity.
For solving the scheme of problem
Above-mentioned purpose of the present invention is realized by following structure.
(1) a universal joint Y-piece, possesses:
Base portion, it is formed as ring-type, and has the joining hole formed vertically in radial center portion; And
A pair arm, it is using two positions as radial opposition side from above-mentioned base portion to axially one-sided state setting of stretching out,
In above-mentioned universal joint Y-piece,
Above-mentioned joining hole is configured to, axial intermediate portion is to the press-in hole portion of at least axial intermediate portion in the other end as the end for being pressed into axle, further, using the axially end adjoined with above-mentioned press-in hole portion vertically as diameter than above-mentioned press-in hole portion diameter greatly and be not pressed into the non-depressed entrance bore portion of the end of above-mentioned axle.
(2) according to the universal joint Y-piece recorded in (1), above-mentioned base portion and above-mentioned axle are welded.
(3) according to the universal joint Y-piece recorded in (1) or (2), chamfered section is provided with in the continuous portion of the inner peripheral surface of above-mentioned non-depressed entrance bore portion and the axial single side face of above-mentioned base portion.
(4) according to the universal joint Y-piece recorded in any one of (1) ~ (3), in above-mentioned base portion, at peripheral part of axial the other end of above-mentioned joining hole, be provided with outstanding ring portion, the wall thickness of this outstanding ring portion radial direction compared with peripheral part of the axial the other end near above-mentioned joining hole diminishes.
(5) according to the universal joint Y-piece recorded in (4), the wall thickness of the radial direction of above-mentioned outstanding ring portion diminishes along with towards axial forward end side.
(6) according to the universal joint Y-piece recorded in any one of (1) ~ (5), above-mentioned non-depressed entrance bore portion, in two positions becoming radial opposition side orthogonal with the inner side surface opposed direction each other of above-mentioned a pair arm, possesses radially depression and the rigidity reduction recess of axial single side face opening at above-mentioned base portion respectively.
(7) manufacture method of the universal joint Y-piece recorded in a kind of (4),
Prepare the punching press metal mold possessing the non-depressed entrance bore portion working surface as working surface consistent with above-mentioned non-depressed entrance bore portion at front end outer circumferential face, and, after obtaining having the medium material for the formation of the roughly discoideus of above-mentioned base portion or roughly columned base portion thickness portion, be pressed into the front end of above-mentioned punching press metal mold to the inside in above-mentioned base portion thickness portion by the central part of the axial single side face from above-mentioned base portion thickness portion, the part integrated with above-mentioned non-depressed entrance bore portion working surface in the part of this press-in is set to above-mentioned non-depressed entrance bore portion, and the central part of the axial another side in above-mentioned base portion thickness portion is bloated vertically, and the part this bloated is set to the outstanding ring portion thickness portion for the formation of above-mentioned outstanding ring portion.
(8) according to the manufacture method of the universal joint Y-piece recorded in (7),
Above-mentioned press-in hole portion is formed at the central part in above-mentioned base portion thickness portion,
By the formation along with above-mentioned press-in hole portion, and remove the central part in above-mentioned outstanding ring portion thickness portion, form above-mentioned outstanding ring portion,
The end of above-mentioned axle is pressed in above-mentioned press-in hole portion,
And weld above-mentioned outstanding ring portion and above-mentioned axle in the mode covering above-mentioned outstanding ring portion.
(9) according to the manufacture method of the universal joint Y-piece recorded in (7),
Manufacturing object is the universal joint Y-piece recorded in (4), and this universal joint Y-piece is provided with chamfered section in the continuous portion of the inner peripheral surface of above-mentioned non-depressed entrance bore portion and the axial single side face of above-mentioned base portion, and forms above-mentioned chamfered section by punch process,
At the front end outer circumferential face of above-mentioned punching press metal mold, except above-mentioned non-depressed entrance bore portion working surface, be also provided with the chamfered section working surface as working surface consistent with above-mentioned chamfered section,
By being pressed into the front end of above-mentioned punching press metal mold from the central part of axial single side face in base portion thickness portion forming above-mentioned medium material to the inside in above-mentioned base portion thickness portion, the part integrated with above-mentioned non-depressed entrance bore portion working surface in the part of this press-in is set to above-mentioned non-depressed entrance bore portion, and the part integrated with above-mentioned chamfered section working surface is set to above-mentioned chamfered section.
The effect of invention is as follows.
(1) when the universal joint Y-piece recorded in, the skin section in the press-in hole portion of joining hole is the part along with producing larger circumferential stress in the end of this joining hole press-in axle, continuous portion (the one end open peripheral portion of this joining hole) between the inner peripheral surface of the non-depressed entrance bore portion of joining hole and the axial single side face of base portion results from when producing during transmitting torque under the state being assembled with universal-joint-pin type universal joint the part that the stress that reverses concentrates, and above-mentioned skin section and above-mentioned continuous portion exist in the position be separated from each other.Therefore, in situation of the present invention, with above-mentioned each construct the part that produces larger circumferential stress like that with press-in in the past and produced result from the overlapped structure of part that the stress that reverses concentrates and compare, be lower by the maximum value suppression of the stress that base portion produces.Its result, easily can carry out the design of the intensity for guaranteeing this base portion.
According to the universal joint Y-piece recorded in (2), owing to welding base portion and axle, so the base portion of Y-piece and the end of axle become more firmly in conjunction with fixing state.
According to the universal joint Y-piece recorded in (3), because the continuous portion between the inner peripheral surface of the non-depressed entrance bore portion at joining hole and the axial single side face of base portion is provided with chamfered section, thus can relax produce in this continuous portion, the stress reversed that results from concentrates.Therefore, the maximum value of the stress that base portion produces is suppressed for lower.Its result, can be more prone to carry out the design for the intensity and rigidity guaranteeing this base portion.
(4) when the universal joint Y-piece recorded in, when when the end of axle is in conjunction with base portion, if by the end of this axle press-in joining hole and under the state of setting up weld metal between the outer circumferential face of this axle and the outer circumferential face of outstanding ring portion and front-end face, weld these axles and outstanding ring portion, then when carrying out this welding, this outstanding ring portion of heating (heat putting on this outstanding ring portion can be made to be difficult to disperse to the axial intermediate portion side of base portion) can be concentrated.Therefore, it is possible to increase the outer circumferential face of this outstanding ring portion and the penetration amount of front-end face, correspondingly, guarantee that the intensity of weld part becomes easy.
According to the universal joint Y-piece recorded in (5), because the wall thickness of the radial direction of outstanding ring portion diminishes along with towards axial forward end side, so be pressed into the state having the end of axle in press-in hole portion under, the face of the embedding part acted between press-in hole portion and the end of axle can be prevented to be pressed in the segment set corresponding with the axial forward end portion of outstanding ring portion and to uprise.
According to the universal joint Y-piece recorded in (6), based on the existence of a pair rigidity reduction recess, the rigidity circumferentially of the part in the continuous portion between the inner peripheral surface of non-depressed entrance bore portion and the axial single side face of base portion, beyond these two rigidity reduction recesses can be made to reduce.Therefore, correspondingly, when during transmitting torque, the elastic deformation amount of the circumferencial direction of this part being increased under the state being assembled with universal-joint-pin type universal joint.Its result, can relax respectively as this part a part, along the circumferential direction concentrate with the stress of the part (stress reversed that results from concentrates four parts especially becoming large) of the width direction two end part homophase of the base end part of a pair arm.
According to the manufacture method of the universal joint Y-piece recorded in (7), by the central part of the axial single side face in the base portion thickness portion from the medium material front end to the inside press-in punching press metal mold in this base portion thickness portion, non-depressed entrance bore portion and the outstanding ring portion thickness portion for the formation of outstanding ring portion can be formed simultaneously.Therefore, the manufacture cost of universal joint Y-piece is suppressed.
According to the manufacture method of the universal joint Y-piece recorded in (8), when welding, the outstanding ring portion of heating can be concentrated, thus the outer circumferential face of outstanding ring portion and the penetration amount of front-end face can be increased, correspondingly, guarantee that the intensity of weld part becomes easy.
According to the manufacture method of the universal joint Y-piece recorded in (9), by the central part of the axial single side face in the base portion thickness portion from the medium material front end to the inside press-in punching press metal mold in this base portion thickness portion, non-depressed entrance bore portion and chamfered section, outstanding ring portion thickness portion for the formation of outstanding ring portion can be formed simultaneously.Therefore, the manufacture cost of universal joint Y-piece is suppressed.
Accompanying drawing explanation
Fig. 1 is the stereogram of the Y-piece of the first case representing embodiments of the present invention.
Fig. 2 (A) is the end view drawing of the Y-piece of top view from (B).(B) be the sectional view of Y-piece.(C) be the end view drawing of the Y-piece observed from the below of (B).
Fig. 3 is a portion enlarged view of Fig. 2 (B).
Fig. 4 (A) ~ (C) is the sectional view of the example representing the manufacture method of Y-piece according to process sequence.
Fig. 5 is the sectional view for illustration of obtaining the operation of the medium material shown in Fig. 4 (B) from the medium material shown in Fig. 4 (A).
Fig. 6 combines with the base portion at Y-piece the partial sectional view being fixed with the state representation of the end of axle.
Fig. 7 (A) is the b portion enlarged view of the Fig. 6 eliminating weld metal.(B) be with (A) the identical figure relevant with comparative example.
Fig. 8 (A) is end view drawing that represent the second case of embodiments of the present invention, that observe from the forward end of Y-piece.(B) be the c-c sectional view eliminating arm and represent (A).
Fig. 9 (A) is end view drawing that represent the 3rd example of embodiments of the present invention, that observe from the forward end of Y-piece.(B) be the d-d sectional view of (A).
That Figure 10 is other example of the shape representing the chamfered section that can adopt in enforcement situation of the present invention, identical with Fig. 3 figure.
Figure 11 is the side view in partial cross-section of the example representing well-known the steering gear in the past.
Figure 12 is the side view in partial cross-section of the jack shaft being combined with the universal-joint-pin type universal joint in the past possessing the Y-piece indulged into formula at its two end part.
Figure 13 combines with the base portion of the Y-piece at the first case constructed in the past the partial sectional view being fixed with the state representation of the end of axle.
Figure 14 is that be correlated with the Y-piece of the second case constructed in the past, identical with Figure 13 figure.
Figure 15 is the major component amplification view of the 4th example representing embodiments of the present invention.
Figure 16 is the major component amplification view of the 5th example representing embodiments of the present invention.
Embodiment
(first case of mode of execution)
Fig. 1 ~ Fig. 7 represents the first case of embodiments of the present invention.The structure of the joining hole 14a that the feature of this example is mainly arranged in the radial center portion of base portion 12b and possess the manufacture method of Y-piece 8g of such joining hole 14a.The central part being included in the axial another side of base portion 12b is provided with this one side of outstanding ring portion 20 that can improve weld strength, structure and the effect of other parts are identical with the situation of the second case constructed shown in above-mentioned Figure 14 in the past, thus the repetitive description thereof will be omitted or be described briefly, below, be described centered by the characteristic of this example.In the following description, at Y-piece 8g (and its medium material) axially, the one-sided upside referred in each figure of Fig. 1, Fig. 2 B, Fig. 4 ~ Fig. 6, opposite side refers to the downside in these each figure.
When the Y-piece 8g of this example, using joining hole 14a as the press-in hole portion 21 being used for the end axial intermediate portion being pressed into axle 18 to the other end.Further, an axially end adjacent vertically relative to press-in hole portion 21 is large and cannot be pressed into the non-depressed entrance bore portion 22 of the end of axle 18 as the diameter of diameter specific pressure entrance bore portion 21.Press-in hole portion 21 and non-depressed entrance bore portion 22 are arranged mutually with one heart, and are provided with the step surface 23 of ring-type (being Round Wheel in illustrated example) each other at the axial ora terminalis of press-in hole portion 21 and non-depressed entrance bore portion 22.Press-in hole portion 21 is the circular hole identical with the joining hole 14 of the formation Y-piece 8f of the second case constructed shown in above-mentioned Figure 14 in the past or sawtooth hole.On the other hand, the circular hole of non-depressed entrance bore portion 22 to be inner peripheral surfaces be simple barrel surface.(the inner side surface continuous print concave curved surface smoothly making axial single side face and a pair arm 13,13 is comprised at the inner peripheral surface of non-depressed entrance bore portion 22 and the axial single side face of base portion 12b.) continuous portion, be provided with the section shape local shown in Fig. 3 in the R chamfered section 24 of arc-shaped throughout complete cycle.When this example, R chamfered section 24 is formed by punch process.
Next, the manufacture method of Y-piece 8g of this example with above-mentioned structure is described.When manufacturing Y-piece 8g, first, by implementing to metallic sheet materials such as steel plates the punch process comprising punch press process and bending, or by implementing forging processing to metallic material such as steel poles, obtain the first medium material 25 shown in Fig. 4 (A).First medium material 25 possesses: for the formation of the roughly discoideus of base portion 12b or roughly columned base portion thickness portion 26; Arrange with the state outstanding to axially one-sided extension from two positions of the radial opposition side becoming base portion thickness portion 26, for the formation of a pair arm thickness portion 27,27 of the difference tabular in the form of a substantially rectangular of a pair arm 13,13.
After obtaining the first such medium material 25, next, under the state that the first medium material 25 is configured at the cavity of not shown die, be pressed into the front end of the punching press metal mold (pressing drift) 28 shown in Fig. 5 to the inside in base portion thickness portion 26 from the central part of the axial single side face in base portion thickness portion 26.The front-end face of punching press metal mold 28 becomes the plane with axially vertical circle.Outside diameter part in the front-end face of punching press metal mold 28 becomes the step surface working surface 29 as working surface consistent with step surface 23.The front end outer circumferential face of punching press metal mold 28 becomes the non-depressed entrance bore portion working surface 30 as working surface consistent with the inner peripheral surface of non-depressed entrance bore portion 22 and becomes the R chamfered section working surface 31 as working surface consistent with R chamfered section 24.In addition, step surface working surface 29 and non-depressed entrance bore portion working surface 30 are continuous smoothly by the convex surface of section shape local in arc-shaped.And, as mentioned above, by being pressed into from the central part of the axial single side face in base portion thickness portion 26 to the inside in base portion thickness portion 26 by the front end of punching press metal mold 28, make the central part of the axial single side face in base portion thickness portion 26 recessed.And, in this recessed part (part of the front end of press-in punching press metal mold 28), the part integrated with step surface working surface 29 is set to step surface 23, the part integrated with non-depressed entrance bore portion working surface 30 is set to non-depressed entrance bore portion 22, and the part integrated with R chamfered section working surface 31 is set to R chamfered section 24.Further, the central part of the axial another side in base portion thickness portion 26 is bloated vertically, and the part this bloated is set to the outstanding ring portion thickness portion 32 for the formation of outstanding ring portion 20, and is set to the second medium material 33 shown in Fig. 4 (B).
In addition, the external surface shape in ring portion thickness portion 32 is given prominence to except the opening portion in press-in hole portion 21, consistent with the external surface shape of outstanding ring portion 20.When this example, in order to obtain the external surface shape in outstanding ring portion thickness portion 32, in the part that the internal surface of die is opposed with cavity, the part opposed with the central part of the axial another side in base portion thickness portion 26, be provided with there is the internal surface consistent with the outer surface in outstanding ring portion thickness portion 32 accept recess.And, as mentioned above, accepting in recess based on making the thickness bloated vertically from the central part of the axial another side in base portion thickness portion 26 be filled in, obtaining the external surface shape in outstanding ring portion thickness portion 32 as described above.
After obtaining the second medium material 33 as described above, next, punch press process, cutting is implemented (when press-in hole portion 21 is set to sawtooth hole by the central part in the base portion thickness portion 26 to formation second medium material 33, also implement the wire pulling method for the formation of concavity sawtooth), form press-in hole portion 21.Removed the central part in outstanding ring portion thickness portion 32 by the formation along with press-in hole portion 21, form outstanding ring portion 20.Further, by implementing punch press process, cutting to the arm front end in thickness portion 27,27, circular hole 15,15 is formed.In addition, by implementing other aft-loaded airfoil as required, thus complete Y-piece 8g such shown in Fig. 4 (C).
When the end of the base portion 12b combined axis 18 at Y-piece 8g as described above, as shown in Figure 6, first, by the press-in hole portion 21 of the end of axle 18 press-in joining hole 14a.When press-in hole portion 21 is sawtooth holes, forms convex sawtooth at the end outer circumferential face of axle 18, along with press-in, this convex sawtooth is engaged with sawtooth hole with having magnitude of interference.In addition, when the circular hole of to be inner peripheral surfaces be in press-in hole portion 21 simple barrel surface, the end outer circumferential face of axle 18 is formed as barrel surface, and the press-in hole portion 21 that this barrel surface is formed with by circular hole with having magnitude of interference engages.In addition, also press-in hole portion 21 can be set to circular hole, the end outer circumferential face of axle 18 be set to convex sawtooth, and this convex sawtooth is pressed into press-in hole portion 21.In addition, also press-in hole portion 21 can be set to sawtooth hole, the end outer circumferential face of axle 18 be set to barrel surface, and this barrel surface is pressed into press-in hole portion 21.Next, to set up the state of weld metal 19 between the outer circumferential face of outstanding ring portion 20 and the outer circumferential face of front-end face and axle 18, namely with the state that the entirety of outstanding ring portion 20 is capped, the outstanding ring portion 20 of welding and axle 18.Especially, when axle 18 is hollow shafts, outstanding ring portion 20 is roughly the same with the wall thickness of axle 18, axle 18 and the equal melting of Y-piece 8g both sides when welding, thus can improve weld strength.
In the case of this example, in joining hole 14a, axial intermediate portion to the other end comprising the part corresponding with outstanding ring portion 20 is set to press-in hole portion 21.Further, the outer circumferential face of outstanding ring portion 20 is set to the part-conical face tilted to the direction that diameter diminishes along with the axial forward end side towards outstanding ring portion 20.Therefore, the wall thickness (rigidity) of the radial direction of outstanding ring portion 20 diminishes along with towards axial forward end side.Therefore, under being pressed in press-in hole portion 21 state having the end of axle 18, can prevent the face of the embedding part acted between the end of press-in hole portion 21 and axle 18 from pressing σ
puprise in the segment set corresponding with the axial forward end portion of outstanding ring portion 20.
That is, as shown in Fig. 7 (B), due to the outer circumferential face of outstanding ring portion 20a is set to cylindrical shape, so the wall thickness (rigidity) of radial direction at outstanding ring portion 20a is constant vertically, act on the face pressure σ of embedding part
pthe part (inlet-side end portions of above-mentioned press-in that is the underpart of this figure) corresponding in the axial forward end portion with outstanding ring portion 20a is had to concentrate the tendency uprised.On the other hand, when this example, as shown in Fig. 7 (A), because the wall thickness (rigidity) of the radial direction of outstanding ring portion 20a diminishes along with towards axial forward end side, so the face pressure σ acting on embedding part can be prevented
pconcentrate in the part (underpart of this figure) corresponding with the axial forward end portion of outstanding ring portion 20 and uprise.Therefore, in the case of this example, at the end sections near axle 18, effectively suppress at face pressure σ
pσ is pressed in region and the face of effect
pthe shearing stress that boundary part between the region do not acted on applies.Its result, easily can carry out the design of the durability for guaranteeing this boundary part.The effect that such effect is especially favourable when axle 18 is hollow shafts.In order to fully obtain the effect of suppression face as described above pressure, preferably the outer circumferential face (part-conical face) of outstanding ring portion 20 is set as the scope of 20 ~ 70 degree relative to the angle of inclination of the central shaft of outstanding ring portion 20.
When the universal joint Y-piece of this example formed as described above, the skin section in the press-in hole portion 21 of joining hole 14a is the part along with producing larger circumferential stress in the end of joining hole 14a press-in axle 18, continuous portion (being provided with the part of R chamfered section 24) between the inner peripheral surface of the non-depressed entrance bore portion 22 of joining hole 14a and the axial single side face of base portion 12b results from when producing during transmitting torque under the state being assembled with universal-joint-pin type universal joint the part that the stress that reverses concentrates, the skin section in the press-in hole portion 21 of this joining hole 14a, with the continuous portion (being provided with the part of R chamfered section 24) between the inner peripheral surface of the non-depressed entrance bore portion 22 of joining hole 14a and the axial single side face of base portion 12b exists in the position be separated from each other.Therefore, in the case of this example, with described above respectively constructed to produce like that in the past result from the overlapped structure of part that the stress that reverses concentrates with part be pressed into the larger circumferential stress caused compare with producing, be lower by the maximum value suppression of the stress of generation on base portion 12b.Its result, easily can carry out the design of the intensity for guaranteeing base portion 12b.
Further, in the case of this example, because the continuous portion between the inner peripheral surface and the axial single side face of base portion 12b of non-depressed entrance bore portion 22 is provided with R chamfered section 24, concentrate so the stress reversed that results from produced in continuous portion can be relaxed.In addition, in the case of this example, R chamfered section 24 is formed by punch process.Therefore, it is possible to give compressive residual stress to the skin section in continuous portion.There is the effect of the generation of the damage of the cracking suppressing to result from the stress applied when using etc., so the allowable stress in continuous portion can be improved due to compressive residual stress.Its result, can be more prone to the design of the intensity of carrying out for guaranteeing base portion 12b.
And, in the case of this example, by the central part of the axial single side face in the base portion thickness portion 26 from the first medium material 25 front end to the inside press-in punching press metal mold 28 in base portion thickness portion 26, can forming station terrace 23, non-depressed entrance bore portion 22, R chamfered section 24 and outstanding ring portion thickness portion 32 simultaneously.Therefore, the manufacture cost of universal joint Y-piece is suppressed.
(second case of mode of execution)
Fig. 8 represents the second case of embodiments of the present invention.When the Y-piece 8h of this example, form in the non-depressed entrance bore portion 22a of joining hole 14b, in two positions of (phase place relevant with sense of rotation every 90 degree stagger) orthogonal to the inner side surface opposed direction each other (above-below direction of Fig. 8 A) of a pair arm 13,13 radial (left and right directions of Fig. 8 A, Fig. 8 B) opposition side, be provided with radially depression respectively as a part of non-depressed entrance bore portion 22a and the rigidity reduction recess 35,35 of axial single side face opening to base portion 12c.Further, in the case of this example, Y-piece 8h is also with the method manufacture that the situation of the first case with above-mentioned mode of execution is identical.For this reason, non-depressed entrance bore portion working surface 30 and the R chamfered section working surface 31 (with reference to Fig. 5) of punching press metal mold 28, additional consistent with rigidity reduction recess 35,35 and their opening edge shape is being formed in advance.In addition, in enforcement situation of the present invention, R chamfered section 24 also can only be formed in the part circumferentially staggered from rigidity reduction recess 35,35.In this situation, only R chamfered section working surface 31 is set in the part corresponding with the part that this staggers in advance.
According to the universal joint Y-piece of this example with structure as described above, based on the existence of rigidity reduction with recess 35,35, in continuous portion (being provided with the part of R chamfered section 24) between the inner peripheral surface and the axial single side face of base portion 12c of non-depressed entrance bore portion 22a, the rigidity circumferentially of the part beyond rigidity reduction recess 35,35 can be made to reduce.Therefore, correspondingly, when when the state transfer torque being assembled with universal-joint-pin type universal joint, the elastic deformation amount circumferentially of this part can be increased.Its result, can relax respectively as this part a part, along the circumferential direction with the part of the width direction two end part homophase of the base end part of arm 13,13, namely result from the stress that reverses and concentrate the stress of four parts (α part) represented with oblique grid in Fig. 8 A especially becoming large to concentrate.Structure and the effect of other part are identical with the situation of the first case of above-mentioned mode of execution.
(the 3rd example of mode of execution)
Fig. 9 represents the 3rd example of embodiments of the present invention.When the Y-piece 8i of this example, at the width direction intermediate portion of the front end of the inner side surface of a pair arm 13a, 13a, be respectively equipped with guiding recess 36,36.Further, make a part (end of the forward end of arm 13a, 13a) for the circular hole 15,15 of the front end being located at arm 13a, 13a to guiding recess 36,36 opening.Thus, in circular hole 15,15, each axle portion of cross axle 9 (with reference to Figure 12) is easily inserted by guiding recess 36,36.
Further, in the case of this example, Y-piece 8i is also with the method manufacture that the situation of the first case with above-mentioned mode of execution is identical.And, while formation non-depressed entrance bore portion 22 and outstanding ring portion thickness portion 32 and R chamfered section 24 (with reference to Fig. 4 B), form guiding recess 36,36.For this reason, in advance at close the base end part outer circumferential face of punching press with metal mold 28 (with reference to Fig. 5), setting and guiding recess 36,36 consistent (for the formation of guiding recess 36,36) guiding recess working surface.Structure and the effect of other part are identical with the situation of the first case of above-mentioned mode of execution.
In addition, in enforcement situation of the present invention, also guiding recess 36,36 can be set relative to the Y-piece of the second case of above-mentioned mode of execution.In this situation, method that also can be identical with the 3rd example with above-mentioned mode of execution forms guiding recess 36,36.
(the 4th example of mode of execution)
Figure 15 represents the 4th example of embodiments of the present invention.In this example, non-depressed entrance bore portion 22 is not set at Y-piece 8e, but is provided as the axle path cylindrical part 40 of non-press-in portion in the end of the Y-piece 8e side of axle 18.Utilize this axle path cylindrical part 40, also the maximum value of the stress that the base portion 12 of Y-piece 8e produces is suppressed for lower identically with non-depressed entrance bore portion 22.In addition, in this example, illustrate and apply example of the present invention in the universal joint fork-shaped part employing the Y-piece 8e that outstanding ring portion 20 is not set, but also can apply the present invention in the universal joint fork-shaped part employing Y-piece 8g, 8h, 8i of being provided with outstanding ring portion 20.In addition, joining hole 14 may not be circular hole, but sawtooth hole.In this situation, form convex sawtooth at the end outer circumferential face of axle 18.
(the 5th example of mode of execution)
Figure 16 represents the 5th example of embodiments of the present invention.In this example, non-depressed entrance bore portion 22 is not set at Y-piece 8e, but larger chamfered section 41 is set at Y-piece 8e.Utilize this chamfered section 41, also the maximum value of the stress that the base portion 12 of Y-piece 8e produces is suppressed for lower identically with non-depressed entrance bore portion 22.In addition, in this example, illustrate and apply example of the present invention in the universal joint fork-shaped part employing the Y-piece 8e that outstanding ring portion 20 is not set, but also can apply the present invention in the universal joint fork-shaped part employing Y-piece 8g, 8h, 8i of being provided with outstanding ring portion 20.In addition, joining hole 14 may not be circular hole, but sawtooth hole.In this situation, form convex sawtooth at the end outer circumferential face of axle 18.
Industrial utilizability
In enforcement situation of the present invention, do not need to arrange chamfering in the continuous portion between the inner peripheral surface of the non-depressed entrance bore portion of joining hole and the axial single side face of base portion.Further, when arranging chamfered section, chamfered section also can be the linearly C chamfered section 34 of the section shape shown in Figure 10.
And, when implementing the manufacture method of universal joint Y-piece of the present invention, such as also can be configured to use the punching press metal mold of the shape of the R chamfered section working surface 31 (with reference to Fig. 5) eliminating punching press metal mold 28, and with the method identical with above-mentioned mode of execution, form non-depressed entrance bore portion 22 and outstanding ring portion thickness portion 32 simultaneously, afterwards, by using the punch process of other punching press metal mold or cutting to come to form chamfered section 24 (with reference to Fig. 4) in continuous portion in other operation.
And, when manufacturing Y-piece of the present invention, when Y-piece possesses chamfered section 24 and a pair rigidity reduction recess 35, time 35 (with reference to Fig. 8), also can be configured to, first by the punch process of use first punching press metal mold, and with the method identical with above-mentioned mode of execution, formed simultaneously and rigidity reduction recess 35 is not set, the non-depressed entrance bore portion 22 of 35 and outstanding ring portion thickness portion 32 (with reference to Fig. 4), afterwards, by using the punch process of the second punching press metal mold, form chamfered section 24 and rigidity reduction recess 35 simultaneously, 35.
And, when manufacturing Y-piece of the present invention, when Y-piece possesses chamfered section 24 and a pair guiding recess 36, time 36 (with reference to Fig. 9), also can be configured to, first by the punch process of use first punching press metal mold, and with the method identical with above-mentioned mode of execution, form non-depressed entrance bore portion 22 (with reference to Fig. 4) or 22a (with reference to Fig. 8) and outstanding ring portion thickness portion 32 (reference Fig. 4) simultaneously, afterwards, by using the punch process of the second punching press metal mold, form chamfered section 24 and guiding recess 36 simultaneously, 36.
In addition, when manufacturing Y-piece of the present invention, when Y-piece possesses chamfered section 24, a pair rigidity reduces with recess 35, 35 and a pair guiding recess 36, 36 (with reference to Fig. 8, time Fig. 9), also can be configured to, first by the punch process of use first punching press metal mold, and with the method identical with above-mentioned mode of execution, formed simultaneously and rigidity reduction recess 35 is not set, the non-depressed entrance bore portion 22 of 35 and outstanding ring portion thickness portion 32 (with reference to Fig. 4), afterwards, by using the punch process of the second punching press metal mold, form chamfered section 24 simultaneously, rigidity reduces with recess 35, 35, and guide with recess 36, 36.
Further, in enforcement situation of the present invention, outstanding ring portion does not need to use as the position of setting up weld metal between axle, can only use as the position of the axial length for guaranteeing joining hole yet.
Further, in enforcement situation of the present invention, axial the other end of joining hole may not be press-in hole portion, but non-depressed entrance bore portion.
The Japanese patent application 2014-116393 of the Japanese patent application 2013-147233 that the application applied for based on July 16th, 2013, the Japanese patent application 2013-228672 of application on November 1st, 2013, the Japanese patent application 2014-108684 of application on May 27th, 2014, application on June 5th, 2014, quotes its content in this as reference.
The explanation of symbol
1-steering wheel, 2-steering shaft, 3a, 3b-universal joint, 4-jack shaft, 5-steering gear unit, 6-input shaft, 7-drag link, 8a ~ 8i-Y-piece, 9-cross axle, 10-male axle, 11-female axle, 12, 12a ~ 12c-base portion, 13, 13a-arm, 14, 14a, 14b-joining hole, 15-circular hole, 16-bearing cup, 17-spicule, 18-axle, 19-weld metal, 20, 20a-outstanding ring portion, 21-press-in hole portion, 22, 22a-non-depressed entrance bore portion, 23-step surface, 24-R chamfered section, 25-the first medium material, 26-base portion thickness portion, 27-arm thickness portion, 28-punching press metal mold, 29-step surface working surface, 30-non-depressed entrance bore portion working surface, 31-R chamfered section working surface, 32-outstanding ring portion thickness portion, 33-the second medium material, 34-C chamfered section, 35-rigidity reduction recess, 36-guiding recess, 40-axle path cylindrical part (non-press-in portion), 41-chamfered section (non-press-in portion).
Claims (9)
1. a universal joint Y-piece, possesses:
Base portion, it is formed as ring-type, and has the joining hole formed vertically in radial center portion; And
A pair arm, it is using two positions as radial opposition side from above-mentioned base portion to axially one-sided state setting of stretching out,
The feature of above-mentioned universal joint Y-piece is,
Above-mentioned joining hole is configured to, axial intermediate portion is to the press-in hole portion of at least axial intermediate portion in the other end as the end for being pressed into axle, further, using the axially end adjoined with above-mentioned press-in hole portion vertically as diameter than above-mentioned press-in hole portion diameter greatly and be not pressed into the non-depressed entrance bore portion of the end of above-mentioned axle.
2. universal joint Y-piece according to claim 1, is characterized in that,
Above-mentioned base portion and above-mentioned axle are welded.
3. universal joint Y-piece according to claim 1 and 2, is characterized in that,
Chamfered section is provided with in the continuous portion of the inner peripheral surface of above-mentioned non-depressed entrance bore portion and the axial single side face of above-mentioned base portion.
4., according to the universal joint Y-piece described in any one of claims 1 to 3, it is characterized in that,
In above-mentioned base portion, at peripheral part of axial the other end of above-mentioned joining hole, be provided with outstanding ring portion, the wall thickness of this outstanding ring portion radial direction compared with peripheral part of the axial the other end near above-mentioned joining hole diminishes.
5. universal joint Y-piece according to claim 4, is characterized in that,
The wall thickness of the radial direction of above-mentioned outstanding ring portion diminishes along with towards axial forward end side.
6., according to the universal joint Y-piece described in any one of Claims 1 to 5, it is characterized in that,
Above-mentioned non-depressed entrance bore portion, in two positions becoming radial opposition side orthogonal with the inner side surface opposed direction each other of above-mentioned a pair arm, possesses radially depression and the rigidity reduction recess of axial single side face opening at above-mentioned base portion respectively.
7. a manufacture method for universal joint Y-piece, it is the manufacture method of universal joint Y-piece according to claim 4, it is characterized in that,
Prepare the punching press metal mold possessing the non-depressed entrance bore portion working surface as working surface consistent with above-mentioned non-depressed entrance bore portion at front end outer circumferential face, and, after obtaining having the medium material for the formation of the roughly discoideus of above-mentioned base portion or roughly columned base portion thickness portion, be pressed into the front end of above-mentioned punching press metal mold to the inside in above-mentioned base portion thickness portion by the central part of the axial single side face from above-mentioned base portion thickness portion, the part integrated with above-mentioned non-depressed entrance bore portion working surface in the part of this press-in is set to above-mentioned non-depressed entrance bore portion, and the central part of the axial another side in above-mentioned base portion thickness portion is bloated vertically, and the part this bloated is set to the outstanding ring portion thickness portion for the formation of above-mentioned outstanding ring portion.
8. the manufacture method of universal joint Y-piece according to claim 7, is characterized in that,
Above-mentioned press-in hole portion is formed at the central part in above-mentioned base portion thickness portion,
By the formation along with above-mentioned press-in hole portion, and remove the central part in above-mentioned outstanding ring portion thickness portion, form above-mentioned outstanding ring portion,
The end of above-mentioned axle is pressed in above-mentioned press-in hole portion,
And weld above-mentioned outstanding ring portion and above-mentioned axle in the mode covering above-mentioned outstanding ring portion.
9. the manufacture method of universal joint Y-piece according to claim 7, is characterized in that,
Manufacturing object is universal joint Y-piece according to claim 4, and this universal joint Y-piece is provided with chamfered section in the continuous portion of the inner peripheral surface of above-mentioned non-depressed entrance bore portion and the axial single side face of above-mentioned base portion, and forms above-mentioned chamfered section by punch process,
At the front end outer circumferential face of above-mentioned punching press metal mold, except above-mentioned non-depressed entrance bore portion working surface, be also provided with the chamfered section working surface as working surface consistent with above-mentioned chamfered section,
By being pressed into the front end of above-mentioned punching press metal mold from the central part of axial single side face in base portion thickness portion forming above-mentioned medium material to the inside in above-mentioned base portion thickness portion, the part integrated with above-mentioned non-depressed entrance bore portion working surface in the part of this press-in is set to above-mentioned non-depressed entrance bore portion, and the part integrated with above-mentioned chamfered section working surface is set to above-mentioned chamfered section.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-147233 | 2013-07-16 | ||
| JP2013147233 | 2013-07-16 | ||
| JP2013-228672 | 2013-11-01 | ||
| JP2013228672 | 2013-11-01 | ||
| JP2014-108684 | 2014-05-27 | ||
| JP2014108684 | 2014-05-27 | ||
| JP2014-116393 | 2014-06-05 | ||
| JP2014116393 | 2014-06-05 | ||
| PCT/JP2014/068079 WO2015008647A1 (en) | 2013-07-16 | 2014-07-07 | Yoke for universal joint and production method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104620005A true CN104620005A (en) | 2015-05-13 |
| CN104620005B CN104620005B (en) | 2017-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480002326.6A Active CN104620005B (en) | 2013-07-16 | 2014-07-07 | Universal joint Y-piece and its manufacture method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5910758B2 (en) |
| CN (1) | CN104620005B (en) |
| WO (1) | WO2015008647A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141051A (en) * | 2015-04-20 | 2016-11-23 | 赖传荣 | The forming method of female conjunction of universal joint and device thereof |
| CN111545696A (en) * | 2020-05-13 | 2020-08-18 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6521065B2 (en) * | 2015-06-09 | 2019-05-29 | 日本精工株式会社 | Universal Joint Yoke |
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| JPS62215128A (en) * | 1986-03-13 | 1987-09-21 | Kanae Kogyo Kk | Processing of yoke in universal joint and the like |
| JP2008196650A (en) * | 2007-02-15 | 2008-08-28 | Nsk Ltd | Universal joint, steering device using it, and electric power steering device |
| JP2011161457A (en) * | 2010-02-05 | 2011-08-25 | Nsk Ltd | Method for manufacturing yoke of universal joint |
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| JP2012112509A (en) * | 2010-11-29 | 2012-06-14 | Nsk Ltd | Method and structure for coupling between shaft and yoke |
| JP2013024369A (en) * | 2011-07-25 | 2013-02-04 | Nsk Ltd | Joint part between shaft and universal joint yoke, and method for manufacturing the same |
| JP2013043521A (en) * | 2011-08-23 | 2013-03-04 | Nsk Ltd | Torque transmission apparatus for steering device |
-
2014
- 2014-07-07 CN CN201480002326.6A patent/CN104620005B/en active Active
- 2014-07-07 JP JP2014551350A patent/JP5910758B2/en active Active
- 2014-07-07 WO PCT/JP2014/068079 patent/WO2015008647A1/en active Application Filing
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| JPS62215128A (en) * | 1986-03-13 | 1987-09-21 | Kanae Kogyo Kk | Processing of yoke in universal joint and the like |
| JP2008196650A (en) * | 2007-02-15 | 2008-08-28 | Nsk Ltd | Universal joint, steering device using it, and electric power steering device |
| JP2011161457A (en) * | 2010-02-05 | 2011-08-25 | Nsk Ltd | Method for manufacturing yoke of universal joint |
| CN102292563A (en) * | 2010-02-17 | 2011-12-21 | 日本精工株式会社 | Joint cross type universal joint yoke and method of manufacturing same |
| JP2012112509A (en) * | 2010-11-29 | 2012-06-14 | Nsk Ltd | Method and structure for coupling between shaft and yoke |
| JP2013024369A (en) * | 2011-07-25 | 2013-02-04 | Nsk Ltd | Joint part between shaft and universal joint yoke, and method for manufacturing the same |
| JP2013043521A (en) * | 2011-08-23 | 2013-03-04 | Nsk Ltd | Torque transmission apparatus for steering device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106141051A (en) * | 2015-04-20 | 2016-11-23 | 赖传荣 | The forming method of female conjunction of universal joint and device thereof |
| CN106141051B (en) * | 2015-04-20 | 2018-06-08 | 赖传荣 | The forming method and its device of female engaging member of universal joint |
| CN111545696A (en) * | 2020-05-13 | 2020-08-18 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
| CN111545696B (en) * | 2020-05-13 | 2022-01-11 | 上海长特锻造有限公司 | Flange tube fork forging forming process and flange tube fork formed by using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2015008647A1 (en) | 2017-03-02 |
| CN104620005B (en) | 2017-04-05 |
| WO2015008647A1 (en) | 2015-01-22 |
| JP5910758B2 (en) | 2016-04-27 |
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