WO2017195949A1 - Procédé de fabrication d'un étrier de tube - Google Patents

Procédé de fabrication d'un étrier de tube Download PDF

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Publication number
WO2017195949A1
WO2017195949A1 PCT/KR2016/011671 KR2016011671W WO2017195949A1 WO 2017195949 A1 WO2017195949 A1 WO 2017195949A1 KR 2016011671 W KR2016011671 W KR 2016011671W WO 2017195949 A1 WO2017195949 A1 WO 2017195949A1
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WO
WIPO (PCT)
Prior art keywords
yoke
forming
tube
spline
die
Prior art date
Application number
PCT/KR2016/011671
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English (en)
Korean (ko)
Inventor
황태민
박상균
Original Assignee
(주)성진포머
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)성진포머 filed Critical (주)성진포머
Priority to CN201680001982.3A priority Critical patent/CN107438466A/zh
Publication of WO2017195949A1 publication Critical patent/WO2017195949A1/fr

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Classifications

    • 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
    • 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
    • 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
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • 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
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/022—Special design or construction multi-stage forging presses
    • 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
    • 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

Definitions

  • the present invention relates to a method for manufacturing a tube yoke, and more particularly, a method for manufacturing a tube yoke that can quickly produce a tube yoke having a spline formed in a tube portion through a forging process, and can prevent distortion of the shape of the spline. It is about.
  • the driven shaft when the driven shaft is not in the same line and is inclined at a predetermined angle with respect to a rotating main shaft such as a steering shaft of a vehicle or a propulsion shaft that transmits the power of the engine, or the same axis, the power of the main shaft is driven. It is configured to facilitate delivery to.
  • FIG. 1 is a perspective view of a conventional tube yoke, the tube yoke is composed of a yoke portion 2 and a shaft 3 coupled to the lower portion of the yoke portion 2.
  • the yoke part 2 and the shaft 3 were manufactured separately, and then the tube yoke was manufactured by welding the lower part of the yoke 2 and the upper part of the shaft 3.
  • the conventional tube yoke which manufactures the yoke portion and the shaft by welding, as described above, has the trouble of producing the knuckle portion and the shaft in a separate device, and thus, the equipment cost increases, and the knuckle by the heat during welding Deformation such as warpage of the part or shaft may occur, and the welding part is vulnerable, and thus has a problem in that it is not firmly used.
  • the tube yoke formed integrally with the yoke portion and the shaft portion may be manufactured in a forging process, and the spline formation may be manufactured through a separate processing process, which is excessive in production time. In addition to the increase, manufacturing costs are rising.
  • Patent Registration 10-0767105 (Registration Date October 08, 2007)
  • An object of the present invention for solving the problems according to the prior art, a tube yoke manufacturing method that can quickly produce a tube yoke, the spline is formed in the tube portion through a forging process, can prevent the distortion of the spline distortion In providing.
  • Tube yoke production method of the present invention for solving the above technical problem, the tube yoke forging molding process for forming a tube yoke consisting of the tube portion and the yoke portion by inserting the material into the die and pressurized with a punch; And a spline forging molding step of forming a spline inside the tube part by inserting a forming pin having a spline part formed on an outer circumferential surface into the tube part.
  • the spline portion corresponding to one side in the longitudinal direction of the forming pin may be formed with a land portion protruding in the outer circumferential direction.
  • the land portion may include a first land portion formed at one end in the longitudinal direction of the forming pin and a second land portion formed at a position spaced apart from the first land portion to the other side.
  • the protruding height of the first land portion may be formed to be higher than that of the second land portion.
  • the length of the spline portion of the forming pin may be formed longer than the depth of the inner diameter hole of the tube portion.
  • the tube yoke forging process the center groove forming step of supplying the cut material to the center groove forming die and pressurized with a punch to form the center groove on one side of the material;
  • a first back extrusion molding process of supplying the material to the first back extrusion die and then moving the die pin forward to form a tube part having an inner diameter hole formed at one side of the material; Supplying the material to the secondary back extrusion molding die and then moving the die pin forward to form a second back extrusion molding process for forming the tube portion on one side of the material to increase in length;
  • a pre yoke forming step of supplying the raw material to the pre yoke forming die and pressing the punch to form a pre yoke portion having a guide groove formed on the other side of the raw material;
  • a yoke forming process of supplying the material to the yoke forming die and pressing the yoke forming punch to make the yoke part and at the same time, forming the inner
  • the present invention as described above has the advantage that it is possible to quickly manufacture a tube yoke, the spline is formed in the tube portion through a forging process.
  • FIG. 1 is a perspective view showing a conventional tube yoke.
  • FIG. 2 is a view showing the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • Figure 3 is a view showing a center groove forming mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • Figure 4 is a view showing a primary back extrusion molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 5 is a view showing a second back extrusion molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 6 is a view showing a pre-yoke molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a view showing a yoke forming mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • Figure 8 is a view showing a spline molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • 9 to 11 is a view showing a process of forming a spline through the spline molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 12 is a view showing a forming pin provided in the spline molding mold of the tube yoke manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 13 is a sectional view taken along the line A-A of FIG.
  • the terms are used only for the purpose of distinguishing one component from another.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • Tube yoke production apparatus (A) according to an embodiment of the present invention, as shown in Figure 2, the center groove molding mold 110, the first back extrusion molding mold 120, the second back extrusion molding mold ( 130), the preliminary yoke molding mold 140, the yoke molding mold 150, and a spline molding mold (160).
  • center groove molding mold 110 The above-described center groove molding mold 110, the first back extrusion molding mold 120, the second back extrusion molding mold 130, the preliminary yoke molding mold 140, the yoke molding mold 150 and the spline molding mold 160 ) Are supplied to each of the materials to be molded at the same time is formed together.
  • the first material is molded in the center groove forming mold 110 and then supplied to the first back extrusion molding mold 120 through a moving device, wherein the new second material is moved together with the movement of the first material. Simultaneously supplied to the center groove forming mold (110).
  • the first material is molded in the first back extrusion molding mold 120 and then supplied to the second back extrusion molding mold 130, in which the second material with the movement of the first material is the first back extrusion molding.
  • a new new third material is simultaneously supplied to the center groove forming mold 110.
  • one material is the center groove molding mold 110, the first back extrusion molding mold 120, the second back extrusion molding mold 130, the preliminary yoke molding mold 140, the yoke molding mold 150 ) And the spline molding mold 160 is sequentially transported and formed, as well as the material is continuously supplied and molded.
  • the molding operation of 160 is configured to be performed together at one time, and the plurality of materials which have been molded in the corresponding mold are respectively configured to be moved together and supplied to the mold of the next process by the moving device.
  • the center groove forming mold 110 As described above, while the material is continuously supplied, the center groove forming mold 110, the first back extrusion molding mold 120, the second back extrusion molding mold 130, the preliminary yoke molding mold 140, and the yoke Since the molding operations of the molding mold 150 and the spline molding mold 160 are performed together at one time, and all molding operations are performed at once, one cycle operation of the tube yoke manufacturing apparatus A according to an embodiment of the present invention (punch It is possible to manufacture one finished product for each movement), which moves to die and forms the material and then returns.
  • center groove molding mold 110 the center groove molding mold 110, the first back extrusion molding mold 120, the second back extrusion molding mold 130, the preliminary yoke molding mold 140, the yoke molding mold 150, the spline molding mold An outline of the structure of 160 is described.
  • the center groove forming mold 110 presses one side of the material supplied to the center groove forming die 111 and the center groove forming die 111 to receive the cut material. It is configured to include a punch 113 to the center groove is molded on one side.
  • the center groove may be molded through a die pin 111P provided in the center groove forming die 111.
  • the center groove may be formed on one side of the material during one cycle operation of the center groove molding mold 110.
  • the first back extrusion molding mold 120 is disposed adjacent to the center groove forming mold 110, and as shown in FIG. 4, the center groove forming mold 110. Pressurize the material supplied through the primary back-extrusion molding die 121 and the primary back-extrusion molding die 121 to receive the material formed through a separate transfer device (not shown) to one side of the material It is configured to include a die pin 121P for back extrusion molding the tube portion formed with the inner diameter hole.
  • Primary back extrusion may be achieved as the punch 123 presses on the top of the material.
  • the tube portion having an inner diameter hole formed on one side of the material may be back-extruded to be molded.
  • the second back extrusion molding mold 130 is disposed adjacent to the first back extrusion molding mold 120, and the first back extrusion molding mold is illustrated in FIG. 5. Insert the material formed through the mold 120 into the inner back hole of the material supplied to the secondary back extrusion molding die 131 and the secondary back extrusion molding die 131 supplied through a separate transfer device (not shown). It is configured to include a die pin (131P) for back extrusion molding so that the length of the tube portion is increased.
  • a separate transfer device not shown. It is configured to include a die pin (131P) for back extrusion molding so that the length of the tube portion is increased.
  • Secondary back extrusion may be achieved as the punch 133 presses onto the top of the material.
  • the length of the tube portion formed on one side of the material may be rear extruded to be molded.
  • the pre-yoke molding mold 140 is disposed adjacent to the second back extrusion molding mold 130, and as shown in FIG. 6, the second back extrusion molding mold ( 130 is a guide groove on the other side of the material by pressing the material supplied to the pre-yoke molding die 141 and the pre-yoke molding die 141 that is supplied through a separate transport device (not shown) It comprises a punch 143 for molding the formed pre yoke portion.
  • the pre-yoke molding die 141 is provided with a die pin 141P inserted into the inner diameter hole.
  • the pre yoke portion for forming the yoke portion on the other side of the raw material may be molded.
  • the yoke forming mold 150 is disposed adjacent to the pre yoke forming mold 140 as shown in FIG. 2, and is molded through the pre yoke forming mold 140 as shown in FIG. 7. And a punch 153 for pressing the material supplied to the yoke forming die 151 to form the yoke by pressing the supplied material through a separate transfer device (not shown).
  • the yoke molding mold 150 is provided with a die pin (151P) to be inserted into the inner diameter hole to complete the shape of the inner diameter hole.
  • the yoke portion may be formed on the other side of the raw material during one cycle of the yoke forming mold 150.
  • the spline molding mold 160 is disposed adjacent to the yoke molding mold 150, and as illustrated in FIG. 8, the material molded through the yoke molding mold 150.
  • the forming pin 161P having a spline forming die 161 supplied through a separate conveying device and a spline portion 161P-a formed on an outer circumferential surface to be inserted into the tube portion to form a spline SP inside the tube portion. It is configured to include).
  • the spline SP may be formed inside the tube part of the material.
  • the length of the spline portion (161P-a) of the forming pin (161P) is formed longer than the depth of the inner diameter hole of the tube portion.
  • a cross section of the spline portion 161P-a of the forming pin 161P is alternately formed with a concave recess and a convex convex portion, in particular, one side in the longitudinal direction of the forming pin 161P.
  • Land portions L1 and L2 protruding along the outer circumferential direction are formed in the spline portion 161P-a corresponding to the spline portion 161P-a.
  • the land parts L1 and L2 may include a first land part L1 and a first land part formed at one end of the molding pin 161P in the longitudinal direction. It consists of a second land portion (L2) formed at a position spaced apart from the other side in L1, the protruding height of the first land portion (L1) is formed to be higher than the second land portion (L2).
  • a portion of the material inside the tube portion may have a portion that does not exceed the yield strength.
  • the portion still has the property of remaining in the elastic region to return to its original shape, and for this reason, there is a problem that the shape of the spline SP may be molded poorly.
  • the first land portion L1 discharges a portion of the material inside the tube portion remaining in the elastic region in the process of forming the spline SP while the forming pin 161P is inserted into the tube portion to return to the original shape.
  • SP shape of the spline
  • forming pin 161P As the forming pin 161P is inserted into the tube portion, a portion of the material is lower than the protrusion height of the first land portion L1 after the first land portion L1 passes (see FIG. 13). Returning to 'R') is partially restored, but in the process of discharging the forming pin (161P) is to press the part again restored to make plastic deformation.
  • the structure does not have the first land portion (L1)
  • the forming pin (161P) when the forming pin (161P) is inserted into the tube portion, part of the raw material does not exceed the yield strength when discharged to restore some elasticity to its original shape to form a bad spline
  • the first land portion (L1) by applying a strain so that the spline is formed twice, it is possible to make the shape of the spline (SP) is good so that plastic deformation is made in the entire portion.
  • the second land portion L2 is inserted into the spline portion 161P-a formed by the first land portion L1 while the forming pin 161P is inserted into the tube portion and then discharged. It serves to guide the discharge of the forming pin (161P), the shape of the spline (SP) by the second land portion (L2) can be formed better.
  • Tube yoke manufacturing method the tube yoke forging molding process (S100), including the spline forging molding process (S200).
  • the tube yoke forging molding process is a process of forming a tube yoke consisting of a tube portion and a yoke portion by inserting a material into a die and pressing with a punch.
  • the center groove forming process (S110) and the first back extrusion It may be made of a molding process (S120), a second back extrusion molding process (S130), a preliminary yoke forming process (S140) and a yoke forming process (S150).
  • tube yoke forging molding consisting of a center groove forming process (S110), a first back extrusion molding process (S120), a second back extrusion molding process (S130), a preliminary yoke forming process (S140), and a yoke forming process (S150).
  • S110 center groove forming process
  • S120 first back extrusion molding process
  • S130 second back extrusion molding process
  • S140 preliminary yoke forming process
  • S150 a yoke forming process
  • the center groove forming step (S110) is a process of supplying the cut material to the center groove forming die and pressing the punch to form the center groove on one side of the material.
  • the center groove forming process (S110) may be performed through the above-described center groove forming mold 110.
  • the first back extrusion molding process (S120) is a process of forming a tube part having an inner diameter hole formed on one side of the material by moving the die pin forward after supplying the material to the first back extrusion molding die.
  • the first back extrusion molding process S120 may be performed through the first back extrusion molding mold 120 described above.
  • the secondary back extrusion molding step (S130) is a process of forming the tube portion on one side of the material is increased by moving the die pin forward after supplying the material to the secondary back extrusion molding die.
  • the second back extrusion molding process S130 may be performed through the second back extrusion molding mold 130 described above.
  • the preliminary yoke forming step (S140) is a process of supplying the raw material to the preliminary yoke forming die and pressing the punch to form a preliminary yoke portion having a guide groove formed on the other side of the raw material.
  • the preliminary yoke forming process S140 may be performed through the preliminary yoke forming mold 140 described above.
  • the yoke forming step (S150) is a process of supplying the material to the yoke forming die and pressing with a yoke forming punch to make the yoke part and at the same time completely forming the inner diameter hole with a die pin.
  • the yoke molding process S150 may be performed through the yoke molding mold 150 described above.
  • the tube consisting of the center groove forming step (S110), the first back extrusion molding step (S120), the second back extrusion molding step (S130), the preliminary yoke forming step (S140) and the yoke forming step (S150).
  • S100 the yoke forging molding process
  • the spline forging process (S200) is carried out, specifically, the spline forging process (S200) is a forming pin (161P-a) formed on the outer circumferential surface ) Is a step of forming a spline (SP) inside the tube portion to be inserted into the tube portion of the tube yoke.
  • the spline forging molding process S200 may be performed through the spline molding mold 160 described above.
  • a concave recess and a convex convex portion are alternately formed, and a spline corresponding to one side in the longitudinal direction of the forming pin 161P.
  • Land portions L1 and L2 protruding along the outer circumferential direction are formed at the convex portions of the portions 161P-a.
  • the land parts L1 and L2 are formed at a position spaced apart from the first land part L1 and the first land part L1 formed at one end in the longitudinal direction of the molding pin 161P. It comprises a land portion (L2), the protruding height of the first land portion (L1) is formed to be higher than the second land portion (L2).
  • the length of the spline portion 161P-a of the forming pin 161P is formed longer than the depth of the inner diameter hole of the tube portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un étrier de tube, capable de fabriquer rapidement un étrier de tube pourvu d'une cannelure sur une partie tube par l'intermédiaire d'une étape de forgeage, tout en empêchant la distorsion induisant une forme torsadée de la cannelure. A cet effet, le procédé de fabrication de l'étrier de tube selon la présente invention comprend : une étape de moulage par forgeage d'étrier de tube, consistant à injecter un matériau dans des matrices et à presser avec un poinçon pour mouler l'étrier de tube comprenant la partie tube et une partie étrier ; et une étape de moulage par forgeage de cannelure, consistant à former la cannelure sur l'intérieur de la partie tube par insertion, dans la partie de tube, d'une broche de moule pourvue d'une partie de cannelure sur sa surface circonférentielle externe.
PCT/KR2016/011671 2016-05-09 2016-10-18 Procédé de fabrication d'un étrier de tube WO2017195949A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201680001982.3A CN107438466A (zh) 2016-05-09 2016-10-18 管轭制造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0056352 2016-05-09
KR1020160056352A KR101685497B1 (ko) 2016-05-09 2016-05-09 튜브요크 제조방법

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WO2017195949A1 true WO2017195949A1 (fr) 2017-11-16

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CN (1) CN107438466A (fr)
WO (1) WO2017195949A1 (fr)

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KR102436815B1 (ko) * 2021-01-27 2022-08-29 주식회사 코우 중공타입 요크샤프트 제조방법
KR102483752B1 (ko) 2022-07-04 2023-01-02 박근종 샤프트의 제조방법 및 이를 제조하기 위한 압출 성형 장치

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KR100767105B1 (ko) 2006-08-25 2007-10-12 주식회사 코우 요크 제조 방법
KR100876420B1 (ko) * 2007-05-08 2008-12-31 고진범 요크제조방법
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Publication number Priority date Publication date Assignee Title
JPH115137A (ja) * 1997-06-11 1999-01-12 Aichi Steel Works Ltd 中空軸を有する鍛造品の製造方法
KR100655940B1 (ko) * 2006-02-22 2006-12-11 주식회사 코우 요크 제조 방법
KR20080009863A (ko) * 2006-07-25 2008-01-30 삼창기업 주식회사 원자력 발전소 안전 계통에 사용되는 브이엠이버스 기반의디지털 신호 입력장치및 방법
KR20090078601A (ko) * 2008-01-15 2009-07-20 (주)협진단철 요크 제조공정
KR20160006431A (ko) * 2014-07-09 2016-01-19 (주)성진포머 자동차 조향장치용 파이프 조인트의 제조방법

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KR101685497B1 (ko) 2016-12-13

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