WO2004112984A1 - ホイールリムハンプ部成形方法及びその装置 - Google Patents
ホイールリムハンプ部成形方法及びその装置 Download PDFInfo
- Publication number
- WO2004112984A1 WO2004112984A1 PCT/JP2004/008760 JP2004008760W WO2004112984A1 WO 2004112984 A1 WO2004112984 A1 WO 2004112984A1 JP 2004008760 W JP2004008760 W JP 2004008760W WO 2004112984 A1 WO2004112984 A1 WO 2004112984A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- wheel rim
- peripheral wall
- hump
- vehicle wheel
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/30—Making other particular articles wheels or the like wheel rims
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49496—Disc type wheel
- Y10T29/49499—Assembling wheel disc to rim
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49496—Disc type wheel
- Y10T29/49499—Assembling wheel disc to rim
- Y10T29/49501—Assembling wheel disc to rim with disc shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49496—Disc type wheel
- Y10T29/49504—Disc shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49524—Rim making
- Y10T29/49529—Die-press shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49481—Wheel making
- Y10T29/49492—Land wheel
- Y10T29/49524—Rim making
- Y10T29/49531—Roller forming
Definitions
- the present invention relates to a method and an apparatus for forming a wheel rim hump portion in which a hump portion is provided by raising an outer peripheral wall surface of a vehicle wheel rim.
- a disk-shaped disc is mounted inside a cylindrical vehicle wheel rim (hereinafter sometimes simply referred to as a rim).
- a rim cylindrical vehicle wheel rim
- two-piece wheels that are inserted and joined by MIG welding or the like.
- the rim is manufactured, for example, as follows. First, the end faces of the rectangular plate are brought into contact with each other to form a cylindrical body, and then the contacted end faces are joined by resistance welding or the like. Next, a concave portion called a drop portion is formed along the circumferential direction at a substantially central portion of the outer peripheral wall surface of the cylindrical body by applying a multi-stage roll forming force, and then the end of the cylindrical body is bent. A force part is provided.
- the cylindrical body further prevents air from leaking from the tire fitted to the wheel, and also prevents the bead portion of the tire from dropping into the drop portion provided at the center of the rim.
- a hump is provided, which leads to a rim.
- Patent Document 1 discloses that a cylindrical workpiece is subjected to rough molding to extend an outer peripheral wall surface, and then a mold having a concave portion is attached to the outer peripheral wall surface. There has been proposed a method in which the outer peripheral wall surface is further stretched by applying a finish molding while pressing, and a hump portion is formed by flowing the flesh of the outer peripheral wall surface into the concave portion to raise the outer peripheral wall surface.
- Patent Document 2 a first roller having a convex portion provided on a side peripheral wall portion is inserted into a cylindrical body, and a second roller having a concave portion is provided outside the cylindrical body. It is disclosed that a hump portion is provided by displacing the first roller and the second roller in a direction to each other, and finally pressing the inner peripheral wall surface of the cylindrical body by the convex portion of the first roller to be raised. Have been You. The raised outer peripheral wall surface of the cylindrical body enters the concave portion of the second roller.
- a disc is inserted into the rim thus manufactured, and the two are joined by MIG welding or the like, whereby a wheel is obtained.
- Patent Document 1 JP-A-10-71443
- Patent Document 2 JP-A-2-70304
- the hump portion needs to have good dimensional accuracy to reliably prevent air from leaking from the tire fitted to the wheel.
- the outer peripheral wall surface in contact with the tire is required to have numerical values such as the radius of curvature and the distance between the apex of the hump portion and the curl portion within a predetermined range.
- a general object of the present invention is to provide a hump portion having good dimensional accuracy, and to obtain a wheel that can eliminate the fear that air leaks from a tire.
- An object of the present invention is to provide a method for forming a rim hump portion.
- a main object of the present invention is to provide a wheel rim hump forming method capable of easily forming a hump having good dimensional accuracy.
- Another object of the present invention is to provide an apparatus for forming a wheel rim hump for implementing the above-described method for forming a wheel rim hump.
- the first type supports the vehicle wheel rim from the outer wall surface side
- the second wheel type rim connected to the rotating shaft is provided at a position corresponding to the concave portion to connect the vehicle wheel rim to the inner wall surface.
- Side, and the outer peripheral wall side of the vehicle wheel rim is raised by the pressing on the convex portion
- the convex portion is displaced along the circumferential direction on the inner peripheral wall surface of the vehicle wheel rim, so that the Provided is a method for forming a wheel rim hump portion in which a hump portion is formed by raising an outer peripheral wall surface.
- the first mold is further provided with a concave portion different from the concave portion, and when the vehicle wheel rim is supported from the outer peripheral wall surface side, a force provided at an end portion of the vehicle wheel rim is provided. It is preferable that one of the recesses is accommodated and supported in another of the recesses.
- a roller having a protruding portion formed on a side peripheral wall portion may be used as the second mold.
- two movable plates that are individually movable are provided in the first mold, and the vehicle wheel rim is placed on a mounting table in a state where the first mold is opened, and one of the first molds is provided.
- the remaining movable plate is closed and the first mold is closed to support the outer peripheral wall surface of the vehicle wheel rim and provide the hump portion.
- the step of providing the hump portion is performed by bringing a support member into contact with an end surface of the curl portion.
- an apparatus for forming a wheel rim hump portion wherein a hump portion is provided along a circumferential direction on an outer peripheral wall surface of a vehicle wheel rim gripped by gripping means,
- a first mold having a recess and supporting the vehicle wheel rim from the outer peripheral wall side; a second mold connected to a rotating shaft and having a projection provided at a location corresponding to the recess; and rotating the rotating shaft.
- the vehicle wheel rim is pressed from the inner peripheral wall side by the convex portion of the second type, and the plastically deformed meat enters the concave portion of the first type, whereby the outer peripheral wall side of the vehicle wheel rim is pressed.
- Uplift
- the convex portion is displaced along the circumferential direction on the inner peripheral wall surface of the vehicle wheel rim, and the outer peripheral wall surface is raised along the circumferential direction.
- the first mold in the device further has a concave portion different from the concave portion.
- the other concave portion supports a curl portion provided at an end portion of the vehicle wheel rim when the vehicle wheel rim is supported from the outer peripheral wall surface side.
- a preferable example of the second type is a roller having a projection formed on a side peripheral wall.
- the apparatus includes a reversing means for reversing the gripping means.
- the first mold has two movable plates and that the movable plates can be individually moved.
- the hump unit closes one movable plate of the first type with respect to the vehicle wheel rim mounted on the mounting table in a state where the first type is opened. Later, by closing the remaining movable plate and closing the first mold, the outer peripheral wall surface of the vehicle wheel rim is formed in a supported state.
- the device is provided with fixing means for positioning and fixing the closed first mold.
- the pressing force of one of the movable plates is larger than that of the remaining movable plate.
- the apparatus preferably includes a support member that supports the curl portion from an end face side, and a support member displacement unit that displaces the support member.
- the hump portion is formed in a state where the support member is in contact with an end surface of the curl portion.
- FIG. 1 is an overall schematic perspective view of a hump portion forming apparatus that performs a wheel rim hump portion forming method according to the present embodiment.
- FIG. 2 is a schematic side view of the hump section forming apparatus of FIG. 1.
- FIG. 3 is a schematic front view of the hump portion forming apparatus of FIG. 1.
- FIG. 4 is an enlarged front view of a main part of the clamp means shown in FIG.
- FIG. 5 is an explanatory side view of the clamping means of FIG. 4.
- FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 4.
- FIG. 7 is an explanatory front view of a main part showing a state where the first left mold and the right first mold shown in FIG. 3 are closed.
- FIG. 8 is a fragmentary cross-sectional explanatory view showing displacement means for displacing the roller mold on the inner peripheral wall surface of the work and turning means for turning the roller mold.
- FIG. 9 is a schematic side view of a main part of a positioning cylinder for positioning and fixing the left first mold and the right first mold in FIG. 7;
- FIG. 10 is a schematic side view of a main part showing a state in which a work placed on a mounting table is gripped by first and second claws.
- FIG. 11 is a fragmentary cross-sectional explanatory view showing a state where a roller mold is displaced to the inner peripheral wall surface of a work to press the inner peripheral wall surface to form a raised portion.
- FIG. 12 is an overall schematic side view of a vehicle wheel rim provided with a hump portion.
- FIG. 1 a whole schematic perspective view
- FIG. 2 a schematic side view
- FIG. 3 a schematic front view
- the hump forming apparatus 10 is provided with a drop part D and curl parts Cl and C2.
- a mounting table 12 for mounting a rim (hereinafter, also referred to as a work) W having no hump portion
- a clamp means 14 for holding the work W
- an outer peripheral wall for holding the work W.
- the mounting table 12 is installed on the left end of the base 17 in FIG. 2 via a mounting table elevating cylinder 18, and is capable of moving up and down under the action of the mounting table elevating cylinder 18.
- Guide rods 20 are provided on the left and right sides of the lifting cylinder 18 for the mounting table, and these guide rods 20 slide in the through holes of the guide bush 22 to move the mounting table 12 up and down. Tilt in operation is avoided.
- a rising portion 24 is provided on the periphery of the mounting table 12, and a supporting frame 26 is detachably provided near the inner wall surface of the rising portion 24.
- the rising portion 24 and the supporting frame 26 prevent the workpiece W from falling off.
- the clamping means 14 includes a first claw 30 and a second claw 32 approaching or separating from each other under the action of the claw opening / closing means 28, and the first claw 30 and the second claw 32.
- the claw displacing means 34 moves forward or backward in the direction of the arrow X in FIG. 2, and the claw reversing means 36 reverses the positions of the first and second claws 30 and 32 to exchange their positions.
- a buffer member 37 is attached to each work contact surface of the first claw 30 and the second claw 32.
- An elongate in-vehicle member 40 provided with a rail 38 at each of the left and right ends of the upper end surface thereof is provided on the upper portion of the base 17. Further, on the upper end surface of the guide member 40, a pawl displacement cylinder 42 constituting the pawl displacement means 34 is also provided.
- the gantry 44 supporting the first claw 30 and the second claw 32 is slidably engaged with the rail 38 via a sliding block 46.
- a rod 48 of the pawl displacement cylinder 42 is connected to the gantry 44, and accordingly, the gantry 44, and thus the first and second claws 30 and 32 move forward with the rod 48 moving forward and backward. 'Move back.
- the gantry 44 includes a linear displacement section 50 to which the sliding block 46 is connected, and a rotary operation section 52 rotatable with respect to the linear displacement section 50.
- the rod 48 of the claw displacement cylinder 42 is connected to the linear displacement portion 50 of the rod 48.
- a projection 54 is formed at the upper end of the rotating section 52 so as to protrude (see FIG. 4), and at the lower end of the linear displacement section 50, a stopper that comes into contact with the projection 54 is provided. 56 are provided.
- a reversing actuator 58 constituting the claw reversing means 36 is provided on the upper part of the gantry 44.
- a rotation shaft 60 is connected to the reversing actuator 58, and the rotation shaft 60 is passed through through holes 62 and 64 provided in the linear displacement portion 50 and the rotation operation portion 52, respectively.
- a cylindrical shaft 70 having a small-diameter portion 66 and a large-diameter portion 68 is externally fitted to the rotating shaft 60.
- the small-diameter portion 66 of the cylindrical shaft 70 is inserted into a through hole 64 of the rotating portion 52. Has been entered.
- the large-diameter portion 68 of the cylindrical shaft 70 rotates via a bolt (not shown). It is connected to the operation unit 52. Therefore, when the rotating shaft 60 is urged to rotate, the cylindrical shaft 70 rotates following the rotation, and the rotating portion 52, and thus the first claw 30 and the second claw 32, perform a 180 ° inversion operation. .
- the lower end of the rotating shaft 60 protruding from the small diameter portion 66 of the cylindrical shaft 70 is passed through a through hole of a cylindrical member 72 constituting the claw opening / closing means 28 and a through hole of a substantially rhombus-shaped cam 74. After that, it is axially supported by a bearing portion 76 provided in the rotating portion 52. Note that bearings 77 are interposed between the rotary shaft 60 and the linear displacement portion 50, the cylindrical member 72, and the cam 74, respectively.
- the upper end of the cylindrical member 72 is notched in the circumferential direction, and the first gear 80 is fitted into the notch 78.
- the first gear 80, the cylindrical member 72 and the cam 74 are connected to each other by bolts and bolts (not shown).
- FIG. 6 which is a cross-sectional view taken along line VI—VI of FIG. 4, a first arm 82 and a second arm 84 are connected to both ends in the longitudinal direction of the cam 74, respectively. ing. The first claw 30 and the second claw 32 are connected to the first arm 82 and the second arm 84, respectively.
- the claw opening / closing means 28 further includes a rotation actuator 86 and a rotation angle sensor 88 respectively supported by the rotation operation section 52.
- the rotation actuator 86 and the rotation angle sensor 88 are connected to the main rotation shaft 90.
- a secondary rotation shaft 92 a secondary rotation shaft 92.
- a second gear 94 and a third gear 96 are fitted to the main rotating shaft 90 and the driven rotating shaft 92, respectively.
- the second gear 94 and the third gear 96 are combined with the first gear 80. are doing.
- the rotational driving force is transmitted to the first gear 80 via the second gear 94, thereby being connected to the first gear 80.
- the cam 74 rotates in the arrow Y direction shown in FIG.
- the first arm 82 moves forward in the direction of arrow Z1
- the second arm 84 moves forward in the direction of arrow Z2.
- the second claws 32 advance in the direction of arrow Z1, respectively, and as a result, the first claws 30 and the second claws 32 are separated from each other. That is, the nail opens. At this time, the opening amounts of the first claw 30 and the second claw 32 are detected by the rotation angle sensor 88.
- the left first mold 16a and the right first mold 16b include a left first mold syringe.
- the rods 98a and 100b of the right type 1 cylinder 98b are connected to each other, and the left type 1a 16a and the right type 1 16b are moved by the forward and backward movement of the rods 100a and 100b.
- a support die 106 for supporting the work W is detachably installed in the arc-shaped openings of the left first die 16a and the right first die 16b.
- a first concave portion 108 for forming the hump portion and a second concave portion 110 for supporting the curled portions Cl and C2 from the outer peripheral wall surface side are provided.
- the other end face of the flat bracket 102 is provided with positioning means constituting positioning means for preventing the left first mold 16a and the right first mold 16b from being opened.
- the cylinder 112 is fixed.
- the rod 114 of the positioning cylinder 112 is connected to a rod displacement member 116 that is bent in an arc shape.
- a rod 118 projecting from a through hole provided in the flat bracket 102 is connected to an upper end and a lower end of the rod displacement member 116, respectively. A part of the tip of each rod 118 is cut out, and this notch 120 slides on the sliding contact portion 122 of the left first mold 16a and the right first mold 16b when the rod 118 moves forward. It is laminated in contact.
- the hump section forming apparatus 10 further includes a roller mold 124 as a second mold for providing a hump section, and the roller mold 124 on the inner peripheral wall surface side of the workpiece W. It has a displacing means 126 for displacing, and a turning means 128 for turning the roller mold 124 in the circumferential direction of the work W.
- the displacement means 126 is connected to a roller mold displacement cylinder 130 supported by the base 17 (see FIG. 2) and a rod 132 of the roller mold displacement cylinder 130 via a connection bracket 134.
- a long rod 136 as a rotating shaft
- an engaging cam 138 fixed to the distal end of the long rod 136 and provided with an inclined surface, and a work as the engaging cam 138 moves forward.
- a moving cam 140 that is displaced toward the inner peripheral wall surface of W.
- a bearing (not shown) is interposed between the long rod 136 and the connecting bracket 134.
- the moving cam 140 is constantly urged toward the engaging cam 138 under the action of a coil spring (not shown).
- the moving cam 140 is provided on the inclined surface of the engagement cam 138.
- the shaft member 142 connected to the moving cam 140 is pivoted.
- the supported roller mold 124 is displaced downward in FIG. 8, in other words, toward the inner peripheral wall surface side of the work W.
- the turning means 128 has a rotating body 144 in which a long rod 136 is accommodated in a hole 147 thereof, and a motor 146 for rotating the rotating body 144.
- long rod 136 is inserted into hole 147 provided in rotating body 144.
- Most of the rotating body 144 is surrounded by a fixed frame 148.
- a bearing 150 is interposed between the rotating body 144 and the fixed frame 148.
- a belt 154 is wound around a pulley 152 fixed to the end of the rotating shaft of the motor 146.
- a gear 156 is fitted to a side peripheral wall protruding from the fixed frame 148, and the gear 156 is engaged with a concave portion 157 provided on the inner peripheral surface of the belt 154.
- a bearing 158 is interposed between the rotating body 144 and the long rod 136. Accordingly, as the pulley 152 is urged to rotate, the long rod 136 is also moved through the rotating body 144. Rotate.
- the fixed frame body 148 is provided with an annular support member 160 for supporting the curled portions Cl and C2 from the end face side. More specifically, the fixed frame 148 is provided with a first support member cylinder 162 and six second support member cylinders 164, and the annular support member 160 Each of the ports 166 and 168 constituting the cylinder 162 and the second support member cylinder 164 is provided at the distal end. The rods 166 and 168 are moved forward and backward in synchronization, so that the contact surface of the annular support member 160 simultaneously contacts the end surface of the curled portion C1 or the curled portion C2.
- a convex portion 170 is provided at a position corresponding to each first concave portion 108 of each support die 106 in the left first die 16a and the right first die 16b. It protrudes and is formed.
- the first claw 30 and the second claw 32 are brought close to the left first mold 16a and the right first mold 16b. Then, the claws 30 and 32 are separated from each other. Specifically, the rotary actuator 86 is urged to rotate the main rotation shaft 90 and the sub rotation shaft 92, and the second gear 94 and the second gear 94 fitted to the main rotation shaft 90 and the sub rotation shaft 92 are rotated. The first gear 80 is rotated via the third gear 96. Following this, the cylindrical member 72 rotates and the cam 74 rotates in the direction of arrow Y in FIG. 6, and as a result, the first arm 82 and the second arm 84 advance in the directions of arrows Zl and Z2, respectively. By operating, the first claw 30 and the second claw 32 advance in a direction away from each other. In other words, the nail opens. As described above, the opening amount of the nail at this time is detected by the rotation angle sensor 88 (see FIG. 5).
- the mounting table 12 is positioned at the top dead center by urging the mounting table elevating cylinder 18.
- the work (rim) W is mounted on the mounting table 12.
- the longitudinal direction of the work W is made to coincide with the longitudinal direction of the hump section forming device 10. That is, the park W is placed so that the curl portion C1 at one end faces the first left mold 16a and the first right mold 16b of the hump forming apparatus 10.
- the first pawl 30 and the 2 Displace the claw 32 to the drop part D of the work W.
- the main rotation shaft 90 of the rotary actuator 86 is rotated in the opposite direction to the above, whereby the first claw 30 and the second claw 32 are brought closer to each other.
- the first claw 30 and the second claw 32 finally grip the drop portion D of the work W, as shown in FIG.
- the mounting table elevating cylinder 18 is urged to lower the mounting table 12.
- the work W is detached from the mounting table 12, and the work W is held only by the first and second claws 30 and 32.
- the first claw 30 and the second claw 32 are retracted by urging the claw displacement cylinder 42 to cause the rod 48 to retreat, whereby the curl portion C1 of the work W is moved to the left first position. Retract to the position of mold 16a and right mold 16b.
- the right first mold cylinder 98b is urged to move the rod 100b forward toward the workpiece W, and the rod 100b is guided by the rail 104 of the flat bracket 102 and displaces.
- the curl portion C1 is made to approach the second concave portion 110 of the support die 106, and the other part of the support die 106 is made to approach the side peripheral wall of the work W.
- rod 100b up to The right first die 16b to the forward end position.
- the left first-type cylinder 98a is urged, and the rod 100a is directed toward the workpiece W to move forward.
- the second concave portion 110 of the support die 106 of the left first die 16a displaced by being guided by the rail 104 approaches the curled portion C1, and the other part of the support die 106 is placed on the side peripheral wall of the workpiece W. approach.
- the rod 100a moves forward with approximately half the driving force of the rod 100b. Therefore, the left first mold 16a stops as the end surface of the support mold 106 in the left first mold 16a comes into contact with the end surface of the support mold 106 in the right first mold 16b waiting at the forward end position. That is, in the present embodiment, the rod 100a stops with reference to the forward end position of the right first mold 16b when the rod 100b is moved forward to the maximum, thereby causing the left first mold 16a to move. Stop-positioned. With this positioning, the mold closing is completed, the curl portion C1 is supported from the side peripheral wall side, and the side peripheral wall portion of the work W is supported.
- the right first mold 16b and the left first mold 16a are individually operated. For this reason, for example, when the workpiece W is unevenly distributed on the right first mold 16b side, the work W is pressed by the right first mold 16b which moves forward first, thereby causing the forward end of the right first mold 16b to move forward. It is displaced to the position, and is positioned and supported by the left first mold 16a at this forward end position. On the other hand, when the work W is unevenly distributed on the left first mold 16a side, the work W is already pushed forward by the left first mold 16a that moves forward, so that the work W has already finished the forward movement and is at the forward end position.
- the workpiece W can be reliably positioned at a predetermined position. In other words, it is possible to prevent the workpiece W from being displaced.
- the first support member cylinder 162 and the six second support member cylinders 164 are urged to move the rods 166 and 168 forward, and the annular support member 160 is moved toward the end face of the curl portion C1.
- the annular support member 160 is moved toward the end face of the curl portion C1.
- the longitudinal direction of the work W and the longitudinal direction of the long rod 136 are aligned. That is, it is possible to prevent the work W from being inclined with respect to the long rod 136 and, consequently, the roller mold 124.
- the positioning cylinder 112 is moved backward by directing it toward the flat bracket 102.
- the rod 118 is further protruded from the through-hole of the plate-shaped bracket 102, and the cutout portion of the rod 118 is slid on the sliding contact portion 122 of the first left mold 16a and the right first mold 16b.
- the left first mold 16a and the right first mold 16b are positioned and fixed, and opening of the mold is suppressed.
- the rod 132 of the roller mold displacement cylinder 130 is moved forward, so that the long rod 136 is moved forward via the connecting bracket 134.
- the inclined portion of the engagement cam 138 slides on the inclined portion of the moving cam 140, so that the moving cam 140 is displaced toward the inner peripheral wall surface of the work W.
- the convex portion 170 of the roller mold 124 contacts the inner peripheral wall surface of the workpiece W.
- the inner peripheral wall surface is depressed by the plastic deformation and the outer peripheral wall surface is raised to form a raised portion.
- the raised portion is accommodated in the first concave portion 108 of each support die 106 in the first left mold 16a to the right first mold 16b.
- the pulley 152 attached to the tip of the rotating shaft of the motor 146 is urged to rotate.
- This rotation bias causes the rotating body 144 to rotate following the start of the rotation of the belt 154 and the gear 156, and the long rod 136 to rotate via the bearing 158. Since the bearing 150 is interposed between the rotating body 144 and the fixed frame 148, the fixed frame 148 does not rotate at this time. The same applies to the long rod 136 and the connecting bracket 134.
- the inner peripheral wall surface is pressed by the roller mold 124 so that the hump is performed.
- Part H is formed. Therefore, the hump portion H can be provided at a position separated from the curled portion C1 by a predetermined distance.
- the inner peripheral wall surface of the workpiece W is pressed by the convex portion 170 of the roller mold 124 in this case.
- the meat of the work W pressed by the convex portion 170 is caused to enter the first concave portion 108 of the support die 106 in the left first die 16a or the right first die 16b to be plastically deformed.
- the radius of curvature on the inner peripheral wall surface side and the outer peripheral wall surface side of the provided hump portion H can be within a predetermined numerical range. In other words, the hump portion H having good dimensional accuracy can be formed.
- the hump portion H whose trajectory extends along the circumferential direction of the work W can be provided.
- the work W can be moved to either the left first mold 16a or the right first mold 16b. Even if the workpiece W is unevenly distributed, the workpiece W is finally displaced to the forward end position of the right first die 16b and positioned at this position. For this reason, since the roller mold 124 pivots along the circumferential direction of the inner peripheral wall surface without causing displacement, it is possible to obtain a bump H having no unevenness in the height of the protrusion and the radius of curvature.
- the workpiece W is inverted. That is, the work W is released from the roller mold 124 through a process reverse to the above, and the rod 114 of the positioning cylinder 112 is immersed in the through holes of the left first mold 16a and the right first mold 16b. After opening the mold. Then, the reversing actuator 58 is urged to rotate the rotating shaft 60 of the reversing actuator 58.
- the cylindrical shaft 70 externally fitted to the rotating shaft 60 rotates.
- the rotary operation part 52 connected to the cylindrical shaft 70 rotates, and as a result, the first claw 30 and the second claw 32 supported by the rotary operation part 52 are inverted.
- the cam 74 rotates, but cannot rotate in the direction of the arrow Y (see FIG. 6). Therefore, the first claw 30 and the second claw 32 do not separate from each other. In other words, the state where the workpiece W is gripped is maintained even when the rotation operation unit 52 is reversed. It should be noted that the inverted rotating operation part 52 is stopped when the projection part 54 comes into contact with the stop part 56 of the linear displacement part 50.
- the support frame 26 may be removed from the mounting table 12.
- the support dies 106 of the first left mold 16a and the right first mold 16b are sized according to the opening diameter. What is necessary is just to replace it with the one having.
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/561,791 US7520056B2 (en) | 2003-06-23 | 2004-06-22 | Method and device for molding wheel rim hump part |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-178481 | 2003-06-23 | ||
JP2003-178500 | 2003-06-23 | ||
JP2003-178507 | 2003-06-23 | ||
JP2003178507A JP3839796B2 (ja) | 2003-06-23 | 2003-06-23 | ホイールリムハンプ部成形方法 |
JP2003178500A JP3874742B2 (ja) | 2003-06-23 | 2003-06-23 | ホイールリムハンプ部成形用装置 |
JP2003-178488 | 2003-06-23 | ||
JP2003178488A JP3839795B2 (ja) | 2003-06-23 | 2003-06-23 | ホイールリムハンプ部成形用装置 |
JP2003178481A JP3839794B2 (ja) | 2003-06-23 | 2003-06-23 | ホイールリムハンプ部成形用装置 |
Publications (1)
Publication Number | Publication Date |
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WO2004112984A1 true WO2004112984A1 (ja) | 2004-12-29 |
Family
ID=33545464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/008760 WO2004112984A1 (ja) | 2003-06-23 | 2004-06-22 | ホイールリムハンプ部成形方法及びその装置 |
Country Status (2)
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US (1) | US7520056B2 (ja) |
WO (1) | WO2004112984A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101804432A (zh) * | 2010-04-09 | 2010-08-18 | 潘卫民 | 轮辋内撑式滚圈机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270340A (ja) * | 1988-09-05 | 1990-03-09 | Kanai Shiyarin Kogyo Kk | チタン製ホイールの製造方法 |
JPH035035A (ja) * | 1989-05-31 | 1991-01-10 | Honda Motor Co Ltd | ホイールリムのハンプ部成形装置 |
JPH1071443A (ja) * | 1997-08-01 | 1998-03-17 | Reizu Eng:Kk | 軽合金ホイールの製造方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0712505B2 (ja) | 1989-05-15 | 1995-02-15 | 本田技研工業株式会社 | ホイールリムの製造方法及びその製造装置 |
US5531024A (en) * | 1994-03-31 | 1996-07-02 | Motor Wheel Corp | Method of making a full face wheel |
DE10248356A1 (de) * | 2002-10-17 | 2004-04-29 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg | Verfahren und Vorrichtung zur Herstellung einer gewichtsoptimierten Luftreifenfelge |
JP2005349455A (ja) * | 2004-06-14 | 2005-12-22 | Work:Kk | ホイールの製造方法 |
-
2004
- 2004-06-22 WO PCT/JP2004/008760 patent/WO2004112984A1/ja active Application Filing
- 2004-06-22 US US10/561,791 patent/US7520056B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0270340A (ja) * | 1988-09-05 | 1990-03-09 | Kanai Shiyarin Kogyo Kk | チタン製ホイールの製造方法 |
JPH035035A (ja) * | 1989-05-31 | 1991-01-10 | Honda Motor Co Ltd | ホイールリムのハンプ部成形装置 |
JPH1071443A (ja) * | 1997-08-01 | 1998-03-17 | Reizu Eng:Kk | 軽合金ホイールの製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101804432A (zh) * | 2010-04-09 | 2010-08-18 | 潘卫民 | 轮辋内撑式滚圈机 |
Also Published As
Publication number | Publication date |
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US7520056B2 (en) | 2009-04-21 |
US20070107223A1 (en) | 2007-05-17 |
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