JP4235508B2 - Method and apparatus for press-fitting disc into wheel rim - Google Patents

Description

  The present invention relates to a method and an apparatus for press-fitting a disc into a rim for a foil that can stably press-fit a disc into a rim prior to welding when manufacturing a foil for an automobile.

  2. Description of the Related Art Conventionally, when manufacturing a wheel for an automobile, an apparatus for accurately inserting a disk into a wheel rim has been used. For example, the disk press-fitting device for a load wheel disclosed in Patent Document 1 includes an upper and lower holder that can approach and separate in the vertical direction.

  The upper holder has one holding member corresponding to the rim and attached via a holding member elastic body, a press-fitting jig corresponding to the disk, and a knockout pin projecting in the press-fitting direction by the elastic body into the press-fitting jig. Is provided. The lower holder is provided with the other holding member that faces the holding member, and a pressure receiving plate that faces the press-fitting jig and is attached via an elastic body for the pressure receiving plate.

  The load wheel disc press-fitting device disclosed in Patent Document 1 is intended to accurately position or hold the rim and the disc. However, a large number of guide pins are used, and a driving device is also provided in the lower die. Therefore, there is a problem that the structure is complicated, the number of parts is large, and the operation is also complicated.

  Therefore, as disclosed in Patent Document 2, the present applicant has proposed a wheel rim and a disk insertion device capable of accurately inserting a disk into a rim with a very simple structure.

Japanese Utility Model Publication No. 61-200622 JP-A 64-83401

  The present invention has been made in connection with the above proposal, and improves the setability of the rim and the disk, and also avoids the floating when the disk is press-fitted into the rim, and the optimum press-fitting depth accuracy. It is an object of the present invention to provide a method and an apparatus for press-fitting a disc into a wheel rim capable of maintaining (positioning accuracy).

  In order to achieve the above object, according to the present invention of claim 1, a disk is set and fixed to the first mold part, and a wheel rim is set and fixed to the second mold part. Subsequently, the first mold part and the second mold part are relatively displaced to press-fit the disc into the opening of the wheel rim. When the disk is press-fitted into the opening of the wheel rim, the abutting member provided in the first mold part and the abutted member provided in the second mold part abut to press the disk into the foil rim. Depth is set.

  Therefore, according to the first aspect of the present invention, the disk is press-fitted into the opening of the wheel rim in a state where the disk is fixed to the first mold part and the wheel rim is fixed to the second mold part. Therefore, the disk can be prevented from floating (tilting). In addition, when the disk is press-fitted into the opening of the wheel rim, the contact member provided in the first mold part and the contacted member provided in the second mold part come into contact with each other, so that Since the press-fitting depth of the disk is set, the press-fitting depth accuracy can be improved. As a result, the product accuracy of the foil can be improved.

  The “floating” refers to an unstable state where the disk is press-fitted in an inclined state with respect to the opening of the wheel rim or the press-fitting depth varies. This floating occurs because at least one of the wheel rim and the disk is not completely fixed when the disk is press-fitted into the wheel rim.

  According to the second aspect of the present invention, the disk is securely fixed to the first mold part by the disk fixing means, and the wheel rim is securely fixed to the second mold part by the rim fixing means. It is press-fitted with. Accordingly, a means for fixing the foil rim to the first mold part is not necessary, and a means for fixing the disk to the second mold part is not required. As a result, the workability of setting the wheel rim and the disk can be improved.

  According to the third aspect of the present invention, a rim holding mold in which a foil rim is set in the second mold portion, and the rim holding mold is replaced with another rim holding mold. In this case, the rim holding mold can be easily exchanged by providing a lifter portion that can be displaced by raising the rim holding mold. As a result, it is possible to deal with multiple types of foils.

  According to the present invention, the following effects can be obtained.

  That is, it is possible to improve the setability of the wheel rim and the disk, and to maintain the optimum press-fitting depth accuracy (positioning accuracy) by avoiding floating when the disc is press-fitted into the rim.

  The disk press-fitting method to the wheel rim according to the present invention will be described in detail below with reference to the accompanying drawings by giving a preferred embodiment in relation to an apparatus for carrying out the method.

  1 to 3, a reference numeral 10 indicates a disk press-fitting device (hereinafter simply referred to as a disc press-fitting device 10) to a wheel rim according to an embodiment of the present invention.

  The disk press-fitting device 10 includes a frame 16 formed by integrally assembling a plurality of support columns 12 extending in a vertical direction and a plurality of horizontal members 14a and 14b extending in a horizontal direction, and the frame A top plate 18 fixed to the upper portion of the body 16, a first cylinder (elevating means) 20 and a pair of guide rods 22a and 22b fixed to the top surface of the top plate 18 along the vertical direction, and the first It has an upper mold part (first mold part) 24 that is provided so as to be displaceable in the vertical direction under the driving action of the cylinder 20 and includes a disk fixing means for fixing the set disk D.

  Further, the disk press-fitting device 10 includes a rim holding mold 26 on which a rim R for foil is set and a lower mold part (second mold part) including a rim fixing means for fixing the rim R to the rim holding mold 26. ) 28 and a lifter portion 32 that raises the rim holding mold 26 when the rim holding mold 26 is replaced with another rim holding mold mounted on the carriage 30 described later.

  As shown in FIG. 2, a pair of second cylinders 34 a and 34 b for holding the upper mold portion 24 and preventing the fall are disposed on the upper portion of the support column 12 constituting the frame body 16. The piston rod 36 protruding from the second cylinders 34a and 34b is inserted into a hole 40 formed on the side of the lifting plate 38, so that the upper mold portion 24 including the lifting plate 38 is held at the uppermost position. Is done.

  The piston rod of the first cylinder 20 and the end portions of the pair of guide rods 22a and 22b are connected to the upper surface of the elevating plate 38, respectively, and the pair of guide rods 22a and 22b are driven by the driving action of the first cylinder 20. The elevating plate 38 is provided so as to be movable up and down integrally with the upper mold portion 24.

  A disk fixing means is provided on the bottom surface of the elevating plate 38 via a connecting member 42 connected to the elevating plate 38. The disk fixing means includes a housing 44 fixed to the connecting member 42, a third cylinder 46 having both rods, and a set of members connected to one rod of the third cylinder 46 via a connecting pin 48. Clamp arms 50a, 50b, both ends are held by the housing 44, and the engagement pins 54 that engage with the substantially groove-shaped long grooves 52 formed in the pair of clamp arms 50a, 50b, and the set A slit 58 in which the claw portions 56 of the clamp arms 50a and 50b move toward or away from each other is formed, and abutment that regulates the press-fitting depth of the disk D by abutting against a contacted member 60 of the lower mold portion 28 described later. A member 62 and a holding plate 64 for holding the disk D clamped by the claw portions 56 of the pair of clamp arms 50a and 50b are included (FIGS. 4 and 5). Irradiation).

  In this case, the holding plate 64 and the abutting member 62 function as the upper mold part 24. When the disk D is set on the holding plate 64, the holding plate 64 and the contact member 62 are inserted into the holes of the disk D and the A positioning pin 66 for positioning the disk D and an erroneous assembly prevention pin 68 for preventing erroneous assembly are fixed (see FIGS. 4 and 6).

  Further, the connection member 42 detects whether or not the disk D is securely clamped by the claw portions 56 of the pair of clamp arms 50a and 50b by detecting the displacement of the other rod of the third cylinder 46. A set of first sensors 70a and 70b is disposed (see FIG. 5).

  Further, as shown in FIG. 5, a pin 72 partially protruding from the bottom surface of the contact member 62 and an L-shaped plate 74 connected to the end of the pin 72 are provided. When the contact member 62 descends and comes into contact with the contacted member 60 of the lower mold portion 28, a part of the pin 72 is pressed upward by the contacted member 60. In this case, the pin 72 and the L-shaped plate 74 are slightly raised integrally, and the L-shaped plate 74 comes into contact with the second sensor 76, so that the contact member 62 is covered with the lower mold portion 28. The contact with the contact member 60 is detected.

  Furthermore, as shown in FIG. 5, the connecting member 42 is provided with a pin 78 that is displaced upward by contacting the set disk D, and the displacement of the pin 78 is detected by a sensor (not shown). By doing so, it is detected that the disk D is set in the upper mold part 24.

  The reference numeral 80 is a cylindrical collar that is fixed in the hole of the abutting member 62 and supports the pin 72 so as to be displaceable. The reference numeral 82 has one end engaged with the collar 80 and the other end. A return spring that is urged so that a part of the pin 72 is exposed to the outside by being engaged with the ring body 84 locked to the pin 72 is shown.

  The lower mold portion 28 includes a rim holding mold 26 in which a rim R is set along the positioning pins 86 and a support surface 88 corresponding to the shape of the rim R is formed on an outer wall, and the rim holding mold. It has a flat pallet 92 on which the mold 26 is placed, and a support plate 94 that supports the rim holding mold 26 and the pallet 92.

  The support plate 94 is perpendicular to the pair of long horizontal members 14a suspended in parallel along the horizontal direction between the columns 12 and the long pair of horizontal members 14a. And a short set of horizontal members 14b connected to each other (see FIGS. 1 to 3).

  The rim holding mold 26 is provided so as to move along the horizontal direction integrally with the pallet 92 when the rim holding mold 26 is exchanged with other rim holding molds. A positioning projection 96 for positioning the pallet 92 at a predetermined position on the support plate 94 is provided (see FIGS. 1 and 8).

  Further, the rim holding die 26 is formed with a substantially circular concave portion 90 that opens upward, and a contact member is formed in the central portion of the concave portion 90 when the upper mold portion 24 is lowered. The abutted member 60 that abuts 62 and regulates the press-fitting depth of the disk D is fixed.

  In this case, as shown in FIGS. 1 and 4, the contacted member 60 is formed by integrally laminating a pair of disk members having different diameters, but the invention is not limited to this. There may be other shapes. It is assumed that the contact member 62 of the upper mold part 24 and the contacted member 60 of the lower mold part 28 are concentric in advance so that the axes coincide with each other in advance.

  Further, on the outer wall surface of the rim holding mold 26, an engagement block 100 (see FIG. 7) having a substantially L-shaped cross section that engages with the curled portion 98 of the rim R is approximately 90 degrees along the circumferential direction. Four pieces are fixed with a separation angle.

  As shown in FIGS. 1, 2 and 8, the rim fixing means is fixed on a connecting plate of a lifter portion 32 described later so as to face each other with the rim holding mold 26 interposed therebetween. A pair of support blocks 102a and 102b, a pair of clamp members 106 pivotally connected to the support blocks 102a and 102b by a predetermined angle with the first connecting pin 104 as a rotation center, and a second connecting pin 108 And a pair of fourth cylinders 110a and 110b that rotate the clamp member 106 at a predetermined angle with the first connecting pin 104 as a fulcrum by the forward and backward movement of the piston rod.

  As shown in FIG. 8, the clamp member 106 has a clamp claw 112 that contacts the curled portion 98 of the rim R and presses the curled portion 98 downward. Further, the fourth cylinders 110a and 110b have cylinder tubes connected to the support blocks 102a and 102b via the third connection pin 114 and the connection fitting 116.

  Bending portions 118 that are bent are formed on the upper portions of the support blocks 102 a and 102 b, and the bending portions 118 are provided so as to press the upper surface of the pallet 92 and fix the pallet 92 on the support plate 94.

  As shown in FIGS. 1 to 3 and 10, the lifter portion 32 is a side wall of a long horizontal member 14 a suspended in a horizontal direction between a pair of struts 12 erected substantially in parallel. A flat plate-like first plate 120 and an L-shaped second plate 122 fixed to each other, a pair of guide members 124a, 124b and a lifter cylinder 126 fixed to a bent portion of the second plate 122, And a flat plate-like lifter plate 130 to which ends of the piston rod 126a of the lifter cylinder 126 and the guide rods 128 of the guide members 124a and 124b are fixed.

  On the upper surface of the lifter plate 130, four hollow rectangular tube-shaped molds 132 a and 132 b stacked in a substantially cross-beam shape are fixed, and a pair of substantially parallel upper molds 132 b that are spaced apart by a predetermined distance. When the lifter plate 130 is raised under the drive action of the pair of support blocks 102a and 102b constituting the rim fixing means and the lifter cylinder 126 via the connecting plate 134, it engages with the lower surface of the pallet 92. The first side plate 138a and the second side plate 138b on which a plurality of rollers 136 that are attached to the shaft are fixed are fixed.

  In this case, when the lifter cylinder 126 is driven, the lifter plate 130 is guided along a pair of guide rods 128, and is formed on the lifter plate 130. 132b, a connecting plate 134, a rim fixing means including fourth cylinders 110a and 110b, a first side plate 138a and a second side plate 138b on which a plurality of rollers 136 are axially mounted are respectively provided so as to be integrally raised or lowered. Yes.

  The disk press-fitting device 10 according to the embodiment of the present invention is basically configured as described above. Next, the operation or effect thereof will be described.

  It is assumed that the upper mold portion 24 is in an initial position where it is locked to the pair of second cylinders 34a and 34b and held at the uppermost position.

  At the initial position as described above, the disk D is engaged with the holding plate 64 and the contact member 62 constituting the upper mold portion 24, and the disk D is set with the positioning pin 66 positioned. After the disk D is thus set on the upper mold part 24, the third cylinder 46 is driven to displace the claw parts 56 of the pair of clamp arms 50a, 50b away from each other. The disk D is fixed to the upper mold part 24 by holding the disk D by the claw part 56.

  On the other hand, the curl portion 98 is clamped by setting the rim R following the support surface 88 of the rim holding die 26 constituting the lower die portion 28 and driving the pair of fourth cylinders 110a and 110b. The rim R is fixed to the rim holding mold 26. When the rim R is set on the rim holding mold 26, the rim R is positioned at a predetermined position by a positioning pin 86 attached to the rim holding mold 26, and on the outer wall of the rim holding mold 26. The curl portion 98 of the rim R is engaged with and guided by four engaging blocks 100 provided along the circumferential direction.

  In this case, after the disk D is first set on the upper mold part 24, the rim R is set on the lower mold part 28. However, the present invention is not limited to this, and the rim R is set on the lower mold part 28 first. After that, the disk D may be set on the upper mold part 24.

  After the disk D is fixed to the upper mold part 24 and the rim R is fixed to the lower mold part 28 in this way, the first cylinder 20 (for example, a hydraulic cylinder) provided on the top plate 18 is driven to The upper mold part 24 is lowered while maintaining the state where the disk D is held by the upper mold part 24 under the guiding action of the pair of guide rods 22a and 22b. In addition, since the lower mold | type part 28 exists in the state fixed to the frame 16 via the support plate 94, it does not displace at all.

  When the disk D is lowered integrally with the upper mold part 24, the disk D is press-fitted along the opening of the rim R, and the contact member 62 of the upper mold part 24 is depressed by the concave part 90 of the rim holding mold 26. By abutting against the abutted member 60 provided inside, the lowering operation of the upper mold part 24 is restricted, and the press-fitting operation of the disk D into the rim R is completed (see FIG. 9).

  After the press-fitting of the disk D into the rim R is completed, the third cylinder 46 is driven and the claws 56 of the pair of clamp arms 50a and 50b are urged so as to approach each other, thereby clamping the disk D. Canceled. Further, the first cylinder 20 is driven to raise the upper mold portion 24 and hold it at the initial position, and the fourth cylinders 110a and 110b are driven to release the clamp on the curl portion 98 of the rim R, thereby enabling the next step. Can be migrated to.

  In this embodiment, the abutting member 62 provided on the movable side abuts on the abutted member 60 on the fixed side, so that the press-fitting depth of the disk D into the opening of the rim R is maintained with a predetermined accuracy. Therefore, the accuracy of the press-fitting depth of the disk D with respect to the rim R can be improved, and the optimum press-fitting depth accuracy can be maintained. As a result, the product accuracy of the foil (not shown) can be improved.

  As shown in FIG. 9, when the disk D is press-fitted into the opening of the rim R, the disk D clamped to the upper mold part 24 is held in a non-contact state with the lower mold part 28, and The rim R clamped to the mold part 28 is held in a non-contact state with the upper mold part 24 except for the holding plate 64. Accordingly, since the disk D and the rim R are press-fitted in a fixed state, the disk D can be prevented from floating (inclined) during the press-fitting.

  Furthermore, in the prior art disclosed in Patent Document 1, the elastic body and the holding member elastic body are provided in the upper holder, and the pressure receiving plate elastic body is used in the lower holder. As a result, floating occurs during press-fitting, and the press-fitting depth of the disc into the rim becomes unstable.

  On the other hand, in the present embodiment, no elastic body is used for the upper mold part 24 and the lower mold part 28, and the disk D and the rim R are fixed to the upper mold part 24 and the lower mold part 28, respectively. Therefore, the press-fitting depth accuracy (positioning accuracy) of the disc D with respect to the rim R can be suitably maintained.

  Furthermore, in the prior art disclosed in Patent Document 1, a disk is set in the opening of the rim and press-fitted through a press-fitting jig, whereas in the present embodiment, the disk is placed in the upper mold part 24. Since D is set, the rim R is set on the lower mold portion 28, and the rim R is set separately from each other, the disk D and the rim R can be set stably.

  Next, a case where the rim holding die 26 and the pallet 92 are integrally replaced using the cart 30 will be described.

  By driving the lifter cylinder 126 of the lifter section 32 at the initial position, the lifter plate 130 is guided along a set of guide rods 128 and is arranged on the lifter plate 130 in the form of four substantially parallel beams. The rim fixing means including the molds 132a and 132b, the connecting plate 134, the fourth cylinders 110a and 110b, and the first side plate 138a and the second side plate 138b on which a plurality of rollers 136 are axially attached are respectively raised integrally (note that FIG. 1 shows a state in which the lifter cylinder 126 is driven and a plurality of rollers 136 are raised.)

  In this case, a plurality of rollers 136 pivotally attached to the first side plate 138a and the second side plate 138b are in contact with both ends of the bottom surface of the pallet 92, and the pallet 92 can be displaced under the rolling operation of the plurality of rollers 136. Supported by Further, the support blocks 102a and 102b constituting the rim fixing means are integrally raised, and the bent portion 118 at the upper part of the support blocks 102a and 102b is separated from the upper surface of the pallet 92, whereby the pallet 92 is fixed. Is released.

  Therefore, as shown in FIG. 10, the cart 30 provided with casters is moved and set on the frame 16 of the disk press-fitting device 10, and the pallet 92 on which the rim holding die 26 is placed is placed on the roller 136. Is moved onto the carriage 30 for rolling operation. Subsequently, the pallet 92 on which another rim holding mold for replacement (not shown) is placed is moved by the carriage 30, and the other rim holding mold for replacement is moved on the support plate 94 along the roller 136. Thus, the replacement work is completed.

  The newly replaced rim holding mold is held in a state where it is positioned at a predetermined position by the positioning projection 96 formed on the support plate 94 engaging with the concave portion of the pallet 92.

  Further, the lifter cylinder 126 is driven again, and the lifter plate 130 and the support blocks 102a and 102b constituting the rim fixing means are integrally lowered, whereby the bent portion 118 at the upper part of the support blocks 102a and 102b becomes the pallet 92. The pallet 92 is fixed on the support plate 94 by pressing the upper surface of the pallet.

  In the present embodiment, the rim holding die 26 and the pallet 92 can be easily and integrally replaced by the carriage 30 to improve workability, and to deal with other types of vehicles. It becomes possible.

  In this case, by making the upper mold part 24 general-purpose, only the lower mold part 28 needs to be replaced, and the replacement work of the lower mold part 28 becomes easy.

  The rim R is divided into various types of rims R according to the difference in the total length along the axial direction. Accordingly, by exchanging other members to be abutted 60 corresponding to the various rims R together with the lower mold part 28, the height direction abutting against the abutting member 62 is adjusted, and the disk D is press-fitted into the rim R. Depth can be set freely.

1 is a perspective view of a disk press-fitting device and a carriage to a wheel rim according to an embodiment of the present invention. It is a partially broken front view of the disk press-fitting device shown in FIG. It is a partially broken side view of the disk press-fitting device shown in FIG. FIG. 3 is a partially omitted enlarged vertical sectional view of an upper mold part and a lower mold part constituting the disk press-fitting device shown in FIG. 1. FIG. 2 is a partially omitted enlarged vertical sectional view of an upper mold part constituting the disk press-fitting device shown in FIG. 1. It is the arrow view seen from the arrow Z direction of FIG. FIG. 3 is an enlarged vertical cross-sectional view showing a part of the lower mold part omitted. FIG. 5 is a partially omitted enlarged longitudinal sectional view showing a state where a rim holding mold constituting the lower mold part is clamped. Partially abbreviated enlarged vertical sectional view showing a state in which the abutting member abuts against the abutted member when the disk secured to the upper die portion is press-fitted into the opening of the rim secured to the lower die portion It is. It is a partially omitted enlarged longitudinal sectional view showing a state in which a carriage is set on a frame body and a rim holding die is exchanged.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Disc press-fit apparatus 12 ... Support | pillar 14a, 14b ... Horizontal member 16 ... Frame 20, 34a, 34b, 46, 110a, 110b ... Cylinder 22a, 22b, 128 ... Guide rod 24 ... Upper mold part 26 ... For rim holding | maintenance Mold 28 ... Lower mold part 30 ... Cart 32 ... Lifter part 38 ... Lift plate 50a, 50b ... Clamp arm 56 ... Claw part 60 ... Abutting member 62 ... Abutting member 64 ... Holding plate 88 ... Support surface 90 ... Concave 92 ... pallet 94 ... support plate 98 ... curled portion 100 ... engagement block 102a, 102b ... support block 106 ... clamp member 112 ... clamp claw 118 ... bent portion 126 ... lifter cylinder 130 ... lifter plate 136 ... rollers 138a, 138b ... side plate

Claims (3)

A method for press-fitting a disc into a wheel rim,
Fixing the disk to the first mold part and fixing the foil rim to the second mold part;
Relatively displacing the first mold part and the second mold part and press-fitting a disc into the opening of the rim for the foil;
When the disc is press-fitted into the opening of the wheel rim, the abutting member provided in the first mold portion and the abutted member provided in the second die portion abut to press the disc into the foil rim. Setting the depth; and
A method for press-fitting a disc into a rim for a foil, comprising: A device for press-fitting a disc into a wheel rim,
A first mold part on which a disc is set;
Disk fixing means for fixing the disk to the first mold part;
A second mold part provided so as to be relatively displaceable with the first mold part via an elevating means, on which the foil rim is set;
Rim fixing means for fixing the foil rim to the second mold part;
With
A wheel rim in which the disk fixed to the first mold part is fixed to the second mold part by the relative displacement of the first mold part and the second mold part under the driving action of the elevating means. The press-fitting depth of the disc with respect to the wheel rim is caused by the contact between the contact member provided in the first mold part and the contacted member provided in the second mold part. A disk press-fitting device for a wheel rim, characterized in that The press-fitting device according to claim 2,
In the second mold part, when the rim holding mold in which the rim for foil is set and the rim holding mold is replaced with another rim holding mold, the rim holding mold is raised. And a lifter portion that is displaceable, and a disk press-fitting device for a wheel rim.

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