JP2005052879A - Method and device for manufacturing double layer slide bearing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for manufacturing double layer slide bearings of high sealability and high accuracy in a large quantity and at a low cost. <P>SOLUTION: A device 1 for manufacturing a double layer slide bearing B is provided with: a bearing element forming means 6 to form disk-shaped bearing elements 5 connected to each other by blanking a double layer plate 3 having a slide layer 2; a drawing means 16 to form a recess 15 in a center part 11 by drawing, from the slide layer 2 side, the center part 11 of the disk-shaped bearing element 5 formed by the bearing element forming means 6; a bottom punching means 19 to punch part of a bottom part 14 from the slide layer 2 side so that a circumferential edge portion 17 of the bottom part 14 of the recess 15 formed by the drawing means 16 remains; and an expansion means 20 to expand the circumferential edge portion 17 of the bottom part 14 of the recess 15 with a part 18 of the bottom part 14 punched by the bottom punching means 19 from the slide layer 2 side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a manufacturing method and a manufacturing apparatus for a multi-layer sliding bearing used for a hinge portion of a door of an automobile or the like.

JP 2003-28145 A

  As a manufacturing method of a multi-layer sliding bearing, for example, a multi-layer sliding bearing in which a multi-layer plate material having a sliding layer is pressed to form a recess in the multi-layer plate material (drawing) and the bottom of the recess is punched out. A manufacturing method is proposed in Patent Document 1.

  By the way, in the manufacturing method of such a multi-layer sliding bearing, in order to punch out all the bottoms of the recesses formed in the multi-layer plate material, the multi-layer sliding bearing manufactured by the method is used for a hinge portion of a door of an automobile or the like. In this case, there is a possibility that a gap that allows dust or the like to enter between the end of the bottom sliding side of the multilayer sliding bearing and the shaft rotatably supported by the sliding bearing may be generated. It is difficult to produce a high multi-layer plain bearing.

  Further, in such a method for manufacturing a multilayer sliding bearing, in order to form the recesses by press working, if an attempt is made to form a large number of recesses on the multilayer plate material at positions close to each other, an excessive amount of press working is required. Due to the pressing force, the multi-layer plate material itself may be bent, and it is difficult to manufacture a large amount of high-precision multi-layer slide bearings at low cost.

  The present invention has been made in view of the above-mentioned points. The object of the present invention is to produce a multi-layer plain bearing with high sealing performance, and to produce a high-precision multi-layer slide bearing at low cost. It is an object of the present invention to provide a manufacturing method and a manufacturing apparatus for a multi-layer sliding bearing that can be manufactured in large quantities.

  The manufacturing method of the multi-layer sliding bearing of the first aspect of the present invention includes a bearing element forming step of forming a plurality of disk-shaped bearing elements that are punched out from a multi-layer plate material having a sliding layer and connected to each other. It is formed by a drawing process in which a central part of a plurality of disk-shaped bearing element bodies formed in the bearing body forming process is drawn from the sliding layer side to form a recess in the central part, and a drawing process. A bottom punching process in which a part of the bottom part is punched out from the sliding layer side so that the peripheral part of the bottom part of the concave part remains, and a peripheral part of the bottom part of the recess in which the part of the bottom part is punched in the bottom punching process is slipped. And an expansion step of expanding from the layer side.

  According to the manufacturing method of the multi-layer sliding bearing of the first aspect, a part of the bottom of the recess formed in the drawing process is punched from the sliding layer side, and the peripheral edge of the bottom of the recess thus extracted is the sliding layer. In order to expand from the side, the reduced diameter return force can be left at the bottom end of the multi-layer slide bearing, and a multi-layer slide bearing with high sealing performance can be manufactured.

  According to the second aspect of the present invention, there is provided a method for manufacturing a multi-layer sliding bearing, in which a plurality of disk-shaped bearing element bodies are to be formed at a machining position in the bearing element forming step. The part of the multi-layer board to be processed is the processing position of the drawing process, the part of the multi-layer board to be punched a part of the bottom is to the processing position of the bottom forming process, and the peripheral edge of the bottom of the recess to be expanded It further includes a forward feeding step of feeding the multilayer plate material forward so as to be disposed at the processing position of the spreading step.

  According to the second aspect of the manufacturing method of the multi-layer slide bearing, since the multi-layer plate material is provided with a progressive feed step for sequentially feeding the multi-layer plate material, for example, the multi-layer slide bearing is continuously formed from the coil-wrapped multi-layer plate material. Can be manufactured.

  In the method for manufacturing a multi-layer sliding bearing according to the third aspect of the present invention, in the method for manufacturing a multi-layer sliding bearing according to the first or second aspect, the bearing element forming step is adjacent to each other in the width direction of the multi-layer plate material. Front-row bearing element forming step for forming a plurality of disc-shaped bearing elements on the front-row side, and a plurality of disk-shaped bearing elements on the front-row side formed in the front-row bearing element forming step And a rear-row bearing element forming step for forming a plurality of disc-shaped bearing elements that are positioned adjacent to each other in the width direction of the multilayer plate material.

  In the rear row bearing element forming step, a plurality of disk-shaped bearing elements on the front row side are preferably formed in the front row bearing element forming step, as in the method of manufacturing the multi-layer sliding bearing of the fourth aspect of the present invention. After the multi-layer plate material is sequentially fed twice or more in the forward feeding process in which the multi-layer plate material is fed forward and backward by two rows at the same time, a plurality of disc-shaped bearing elements on the rear row side are formed. .

  According to the fourth aspect of the manufacturing method of the multi-layer sliding bearing, the pressing force applied to the multi-layer plate material can be reduced, and a large number of recesses can be formed at positions close to each other. Accurate multi-layer plain bearings can be manufactured in large quantities at low cost.

  In the bearing element forming step, a plurality of disk-shaped bearing elements arranged in a zigzag manner may be formed as in the method of manufacturing the multi-layer sliding bearing according to the fifth aspect of the present invention.

  Further, in the front row bearing element forming step and the rear row bearing element forming step, the front row side bearing elements which are preferably arranged in a staggered manner as in the method of manufacturing the multi-layer sliding bearing according to the sixth aspect of the present invention. And a rear row side bearing element body.

  According to a seventh aspect of the present invention, there is provided a method for manufacturing a multilayer sliding bearing according to any one of the first to sixth aspects of the present invention, wherein the edge in the width direction of the multilayer plate material is provided. An edge bending step of bending is further provided. Here, after the edge is bent in the edge bending step, the bearing element body of the multilayered plate material is drawn by the drawing step.

  According to an eighth aspect of the present invention, there is provided a method of manufacturing a multilayer sliding bearing according to any one of the first to seventh aspects of the present invention. And further comprising a connecting portion bending step of bending the connecting portions for connecting the respective disk-shaped bearing element bodies to each other, wherein the connecting portion bending step is followed by bending the connecting portion and then a multi-layer plate material by a drawing process. The drawing body of the bearing element is drawn.

  According to the manufacturing method of the multi-layer sliding bearing of the seventh or eighth aspect, the multi-layer plate material itself is bent in order to bend the connecting portion that connects the edge portions in the width direction of the multi-layer plate material or the bearing element bodies to each other. The bending can be eliminated, and the multi-layer sliding bearing can be manufactured with higher accuracy.

  The manufacturing method of the multilayer sliding bearing of the ninth aspect of the present invention is the manufacturing method of the multilayer sliding bearing of any one of the first to eighth aspects, wherein the drawing is performed a plurality of times in the drawing process.

  The manufacturing method of the multi-layer sliding bearing according to the tenth aspect of the present invention is the end of the bearing element body expanded in the expansion step in the manufacturing method of the multi-layer sliding bearing according to any one of the first to ninth aspects. An edge shaping step of pushing up and shaping the peripheral edge of the bottom as a part from below;

  The eleventh aspect of the multi-layer plain bearing manufacturing method according to the eleventh aspect of the present invention is the multi-layer plain bearing manufacturing method according to the tenth aspect, wherein the bottom peripheral edge is pushed up and shaped in the end shaping step. It further includes a coining step of forming an annular groove in the sliding layer at the outer peripheral edge or the inner peripheral edge of the annular collar of the body.

  The manufacturing method of the multilayer sliding bearing of the twelfth aspect of the present invention is the manufacturing method of the multilayer sliding bearing of the eleventh aspect, wherein an annular groove is formed in the sliding layer of the outer peripheral edge of the annular flange portion in the coining step. The formed bearing body is punched from the sliding layer side so as to be sheared at the annular groove portion of the outer peripheral edge portion to obtain a multi-layered sliding bearing with a flange, and the discharge for discharging the multi-layered sliding bearing with a flange is discharged. The method further includes a process.

  According to a thirteenth aspect of the present invention, there is provided a multilayer sliding bearing manufacturing method according to the eleventh aspect of the multilayer sliding bearing manufacturing method, wherein the annular groove is formed in the sliding layer at the inner peripheral edge of the annular flange portion in the coining step. The formed bearing body is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the inner peripheral edge to obtain a double-layered sliding bearing without wrinkles, and the discharge that discharges this multi-layered sliding bearing without wrinkles The method further includes a process.

  A manufacturing apparatus for a multi-layer sliding bearing according to a first aspect of the present invention includes a bearing element forming unit that forms a plurality of disk-shaped bearing elements that are punched out from a multi-layer plate member having a sliding layer and connected to each other. A drawing forming means for drawing a central portion of a plurality of disc-shaped bearing element bodies formed by the bearing element forming means from the sliding layer side to form a recess in the central portion, and a drawing forming means. A bottom punching means for punching a part of the bottom from the sliding layer side so that the peripheral edge of the bottom of the recess remains, and a slip of the peripheral edge of the bottom of the recess punched by the bottom punching means. And expansion means for expanding from the layer side.

  According to the manufacturing apparatus of the multi-layer sliding bearing of the first aspect, a part of the bottom of the recess formed by the drawing means is punched from the sliding layer side by the bottom punching means, and the peripheral edge of the bottom of the recess thus extracted In order to expand the part from the sliding layer side by means of expanding means, it is possible to leave a reduced diameter return force at the bottom end of the multilayer sliding bearing, and to produce a multilayer sliding bearing with high sealing performance. obtain.

  The manufacturing apparatus for a multilayer sliding bearing according to the second aspect of the present invention forms a recess at a machining position of the bearing element forming means at a portion of the multilayer sheet material on which a plurality of disk-shaped bearing elements are to be formed. The part of the multilayer board that should be expanded is moved to the processing position of the drawing means, the part of the multilayer board that should be punched a part of the bottom is moved to the processing position of the bottoming means, and the part of the multilayer board that is to be expanded is expanded Further provided is a progressive means for sequentially feeding the multilayer plate material so as to be arranged at each processing position of the means.

  According to the second aspect of the multi-layer slide bearing manufacturing apparatus, since the multi-layer plate material is provided with the progressive means for sequentially feeding the multi-layer plate material, for example, the multi-layer slide bearing is continuously arranged from the coil-wrapped multi-layer plate material. Can be manufactured.

  In the multi-layer sliding bearing manufacturing apparatus according to the third aspect of the present invention, in the multi-layer sliding bearing manufacturing apparatus according to the first or second aspect, the bearing element forming means are adjacent to each other in the width direction of the multi-layer plate material. Front-row bearing element forming means for forming a plurality of disc-shaped bearing elements on the front-row side, and a plurality of disk-shaped bearing elements on the front-row side formed by the front-row bearing element forming means And a rear-row bearing element forming means for forming a plurality of disc-shaped bearing elements that are positioned adjacent to each other in the width direction of the multilayer plate member.

  The rear row bearing element forming means is preferably formed of a plurality of disc-shaped bearing elements on the front row side by the front row bearing element forming means, like the multi-layer sliding bearing manufacturing apparatus according to the fourth aspect of the present invention. After that, the multi-layer plate material is sequentially fed twice or more by the forward feeding means for feeding the multi-layer plate material forward and backward for two rows at a time, and then a plurality of disk-shaped bearing elements on the rear row side are formed. It is like that.

  According to the fourth aspect of the multi-layer sliding bearing manufacturing apparatus, the pressing force applied to the multi-layer plate material can be reduced, and a large number of recesses can be formed at positions close to each other. Accurate multi-layer plain bearings can be manufactured in large quantities at low cost.

  The bearing element forming means may be configured to form a plurality of disk-shaped bearing elements arranged in a staggered manner as in the multi-layer sliding bearing manufacturing apparatus according to the fifth aspect of the present invention.

  Further, the front row bearing element forming means and the rear row bearing element forming means are preferably arranged in a staggered manner relative to the front row side bearing element as in the multi-layer sliding bearing manufacturing apparatus according to the sixth aspect of the present invention. And a rear row side bearing element body are formed.

  The multi-layer sliding bearing manufacturing apparatus according to the seventh aspect of the present invention is the multi-layer sliding bearing manufacturing apparatus according to any one of the first to sixth aspects, wherein the edge in the width direction of the multi-layer plate material is bent. Bending means is further provided. Here, the drawing forming means draws the bearing element body of the multilayer plate material after the edge is bent by the edge bending means.

  An apparatus for manufacturing a multi-layer sliding bearing according to an eighth aspect of the present invention is the manufacturing apparatus for a multi-layer sliding bearing according to any one of the first to seventh aspects, wherein the discs are formed by a bearing element forming means. And further comprising a connecting portion bending means for bending the connecting portions connecting the respective bearing elements to each other, wherein the draw forming means is a bearing for the multilayer plate material after the connecting portions are bent by the connecting portion bending means. The body is drawn.

  According to the manufacturing apparatus of the multi-layer sliding bearing of the seventh or eighth aspect, the multi-layer plate material itself is bent in order to bend the connecting portion that connects the edges in the width direction of the multi-layer plate material or the bearing element bodies. The bending can be eliminated, and the multi-layer sliding bearing can be manufactured with higher accuracy.

  According to the ninth aspect of the present invention, in the multi-layer sliding bearing manufacturing apparatus according to any one of the first to eighth aspects, the draw forming means includes a plurality of draw forming of the bearing element body. It is supposed to be performed once.

  An apparatus for manufacturing a multi-layer sliding bearing according to a tenth aspect of the present invention is the end of the bearing element body expanded by the expansion means in the multi-layer sliding bearing manufacturing apparatus according to any one of the first to ninth aspects. It further comprises end shaping means for pushing up and shaping the peripheral edge of the bottom as a part from below.

  The eleventh aspect of the multi-layer sliding bearing manufacturing apparatus according to the eleventh aspect of the present invention is the multi-layer sliding bearing manufacturing apparatus according to the tenth aspect of the present invention, in which the bottom peripheral edge is pushed up and shaped from below by the end shaping means. Coining means for forming an annular groove in the sliding layer at the outer peripheral edge or inner peripheral edge of the annular collar of the body is further provided.

  An apparatus for manufacturing a multilayer sliding bearing of the twelfth aspect of the present invention is the manufacturing apparatus for the multilayer sliding bearing of the eleventh aspect, wherein an annular groove is formed in the sliding layer on the outer peripheral edge of the annular flange by the coining means. The formed bearing body is punched from the sliding layer side so as to be sheared at the annular groove portion of the outer peripheral edge portion to obtain a multi-layered sliding bearing with a flange, and the discharge for discharging the multi-layered sliding bearing with a flange is discharged. Means are further provided.

  The manufacturing apparatus for a multi-layer sliding bearing according to the thirteenth aspect of the present invention is the manufacturing apparatus for the multi-layer sliding bearing according to the eleventh aspect, wherein an annular groove is formed in the sliding layer at the inner peripheral edge of the annular flange by the coining means. The formed bearing body is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the inner peripheral edge to obtain a double-layered sliding bearing without wrinkles, and the discharge that discharges this multi-layered sliding bearing without wrinkles Means are further provided.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method and manufacturing of a multilayer sliding bearing which can manufacture a multilayer sliding bearing with high sealing performance, and can manufacture a highly accurate multilayer sliding bearing in large quantities at low cost. An apparatus may be provided.

  Next, the present invention and embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to these examples.

  In this example, the manufacturing apparatus 1 shown in FIGS. 2 and 3 that manufactures the multi-layer sliding bearing B with the flange A shown in FIG. 1 has the unnecessary portion 4 of the multi-layer plate 3 having the sliding layer 2 on one surface. Bearing element forming means 6 for forming a plurality of disk-shaped bearing elements 5 (see FIG. 14) that are punched and connected to each other via connecting parts 9, and both edge parts 7 in the width direction of the multilayer plate 3 A connecting portion that connects the edge bending means 8 (see FIG. 4) for bending (see FIG. 14 to FIG. 16) and the plurality of disk-shaped bearing elements 5 formed by the bearing element forming means 6 to each other. 9 (refer to FIG. 14 to FIG. 16), a connecting portion bending means 10 for bending and a central portion 11 (refer to FIG. 14) of a plurality of disk-shaped bearing element bodies 5 formed by the bearing element body forming means 6 It is drawn from the second side and the cylindrical part 13 and the cylindrical part 13 are formed in the central part 11. A drawing forming means 16 (see FIG. 5) for forming a recess 15 having a continuous bottom 14 and a peripheral edge 17 of the bottom 14 of the recess 15 formed by the drawing forming means 16 are left. A bottom punching means 19 (see FIGS. 6 and 7) for punching the part 18 from the sliding layer 2 side, and a peripheral edge 17 of the bottom 14 of the recess 15 in which the part 18 of the bottom part 14 is punched by the bottom punching means 19 The expansion means 20 (see FIGS. 8 and 9) that expands from the sliding layer 2 side, and the peripheral edge portion 17 of the bottom 14 as the end of the bearing element body 5 expanded by the expansion means 20 are pushed up and shaped from below. End shaping means 26 (see FIGS. 10 and 11) and the bearing element body 5 in which the peripheral edge portion 17 of the bottom 14 of the recess 15 is expanded by the end shaping means 26 are separated from the connecting portion 9 Bearing element body 5 is formed of a multi-layer sliding bearing B. The discharge means 21 (see FIG. 12) for discharging, the forward feed means 22 for feeding the multilayer board 3 forward, the support means 23 for supporting the multilayer board 3 fed forward by the forward feed 22, and the sliding layer 2 are provided. Pilot hole forming means 25 for forming pilot holes 24 for positioning (see FIG. 14) is provided in the multilayer board 3.

  As shown in FIG. 4 and the like, the multilayer plate material 3 is composed of a metal plate layer 31, a sintered layer 33 having copper powder particles 32 sintered on the metal plate layer 31, and a synthetic layer impregnated in the sintered layer 33. And a sliding layer 2 having a resin. As a synthetic resin which is a forming material of the sliding layer 2, polytetrafluoroethylene containing fillers such as polytetrafluoroethylene resin and polyimide resin can be cited as a preferred example.

  The support means 23 includes a lower base 91, an intermediate base 91 a fixed to the lower base 91, and a lower stripper plate connected to the lower base 91 via an elastic means 59 a made of a coil spring and a lifter device 92. 93, an upper base 94 that moves (moves up and down) in the X direction so as to approach and separate from the lower base 91, an upper stripper plate 95 that is connected to the upper base 94 via an elastic member 59b, An elastic support device 85 that elastically supports the multilayer plate 3 from below is provided at a substantially central portion of the region, and is forwardly fed by the forward feed means 22 and placed on the lower stripper plate 93 and the intermediate base 91a. The multi-layer plate member 3 is supported by being sandwiched by the lower stripper plate 93, the intermediate base 91a, and the upper stripper plate 95.

  The elastic means 59a disposed between the lower base 91 and the lower stripper plate 93 cooperates with the lifter device 92 by the elastic force when the upper base 94 is raised as shown in FIG. Similarly, the lower stripper plate 93 is raised as shown in FIG.

  The lifter device 92 is disposed between a rod 92a planted on the lower base 91, a movable plate 92b supported by the rod 92a so as to be movable up and down, and a large end portion of the rod 92a and the movable plate 92b. And a coil spring 92c that elastically pushes up the movable plate 92b, and is disposed on the lower stripper plate 93 so as to be vertically movable in contact with the lower stripper plate 93 at one end and the movable plate 92b at the other end. A transmission rod 92d for transmitting the elastic force of the coil spring 92c via the movable plate 92b to the lower stripper plate 93 is provided. When the upper base 94 is raised as shown in FIG. 13, the elastic means 59a is provided. The lower stripper plate 93 is raised as shown in FIG.

  The elastic support device 85 is disposed between a support rod 85a disposed on the intermediate base 91a so as to be movable up and down, a nut 85b screwed onto the lower base 91, and the support rod 85a and the nut 85b. And a coil spring 85c that elastically urges the support rod 85a upward. The upper base 94 is raised as shown in FIG. 13 and the lower stripper plate 93 is formed by the elastic means 59a and the lifter device 92. When the multi-layer plate 3 is lifted, the support rod 85a is raised by the coil spring 85c so that the upper surface of the support rod 85a is brought into contact with the bottom portion 14, thereby making the multi-layer plate 3 elastic from below. It comes to support.

  The proximity and separation in the X direction with respect to the lower stripper plate 93 and the intermediate base 91a of the upper base 94 and the upper stripper plate 95 are guide holes 97a provided in the upper stripper plate 95, the lower stripper plate 93 and the intermediate base 91a, respectively. It is accurately guided by upper and lower guide pins 97 slidably disposed therein.

  The multi-layer plate 3 disposed between the upper stripper plate 95, the lower stripper plate 93, and the intermediate base 91a is slidably supported by the guide pins 97b at both edges 7, and each guide pin 97b is a coil spring. 97c is elastically supported so as to move up and down.

  The bearing element forming means 6 is a front row bearing element that forms a plurality (five in this example) of disk-shaped bearing elements 5a on the front row side that are arranged adjacent to each other in the width direction of the multilayer plate member 3. A plurality of (in the width direction of the multi-layer plate member 3, which are located on the rear row side with respect to the disk-shaped bearing element body 5 a formed by the forming means 41 and the front row bearing element forming means 41. In this example, there are provided rear-row bearing element forming means 42 for forming five (5) disk-shaped bearing elements 5b.

  The front row bearing element forming means 41 and the rear row bearing element forming means 42 are fixed to the upper base 94 and are provided with punching punches 43 and 44 for punching out unnecessary portions 4, respectively. 44 is moved together with the upper stripper plate 95 by the relative movement in the X direction with respect to the lower base 91 of the upper base 94, thereby moving the unnecessary portion 4 of the multilayer board 3 to the sliding layer 2 side as shown in FIG. Each has come to punch. The unnecessary portion 4 punched out by the punching punches 43 and 44 is discharged from a hole 96 for dropping formed in each part of the lower base 91 located below the punching punches 43 and 44. .

  The bearing element bodies 5a and 5b formed by the front row bearing element body forming means 41 and the rear row bearing element body forming means 42 are in a staggered arrangement with each other as shown in FIG. In this example, the central portion and the central portion of the disc-shaped bearing element body 5b are positioned on lines extending in the direction intersecting with the feeding direction Y and the width direction of the multilayer plate material 3, respectively. The diameters of the disk-shaped bearing elements 5a and 5b are about 24 mm in this example.

  As shown in particular detail in FIG. 4, the edge bending means 8 is fixed to the lower base 91 and is formed by the bearing element forming means 6 so that the disk-shaped bearing elements 5 a and 5 b are formed. A pair of push-up punches 45 that push up the edge 7 of the plate 3 so as to be bent are provided. The push-up punch 45 includes a pressing surface having a length in the feed direction Y that is equal to or longer than a predetermined distance L for pressing the edge portion 7 of the multilayer plate member 3 from the metal plate layer 31 side. The push-up punch 45 raises the edge 7 that is not included in the portion supported by pressure by being raised relative to the upper stripper plate 95 and the lower stripper plate 93 that support the multi-layer plate material 3 by pressing the metal plate layer. It pushes upward from the 31 side.

  The connecting portion bending means 10 is fixed to the lower base 91 and the wavy line-like connecting portion 9 of the multilayer plate material 3 in which the disk-like bearing element bodies 5 a and 5 b are formed by the bearing element forming means 6. A push-up punch 46 that pushes up the portion 9a so as to be bent as shown in FIG. 15 is connected to the upper base 94 via an elastic member 59d and is lifted as the connecting portion 9 is pushed up by the push-up punch 46. A holding member 47 that elastically holds the disc-shaped bearing element body 5a from the sliding layer 2 side is provided. The push-up punch 46 is a part 9a of the connecting portion 9 that is not included in the portion supported by pressure by being raised relative to the upper stripper plate 95 and the lower stripper plate 93 that support the multi-layer plate 3 by pressure. Is pushed upward from the metal plate layer 31 side.

  In this example, the drawing means 16 is formed by drawing the central portion 11 of the disk-shaped bearing element body 5 from the sliding layer 2 side with the large-diameter drawing punch 51 and the die 61, and the disk-shaped bearing element. The cylindrical portion 13 is drawn and reduced by an initial drawing mechanism 52 that forms a cylindrical portion 13 that defines a large-diameter recess 15 in the body 5, and a drawing punch 53 and a die 63 that are smaller in diameter than the drawing punch 51. A redrawing mechanism 54 for reducing the diameter, a drawing punch 55 having a diameter slightly smaller than the diameter of the drawing punch 53, and a die 65. A shaping and drawing mechanism 57 that draws the cylindrical portion 13 with the drawing punch 57a having a diameter equal to or slightly smaller than the diameter of the drawing punch 55 and the die 66 to adjust the shape of the cylindrical portion 13; Cylindrical portion by the initial drawing mechanism 52 3 is provided with a position adjusting mechanism 58 for adjusting the center position of the bearing element body 5 formed with the adjustment punch 67 and the die 68, and the initial drawing mechanism 52, the re-drawing mechanism 54, the fine drawing mechanism 56, and the shaping. The disk-like bearing element body 5 is drawn by a plurality of times by the drawing mechanism 57. In the drawing by the initial drawing mechanism 52, the shoulder 15a is formed between the annular flange 60 and the cylindrical portion 13, and in the drawing by the redrawing mechanism 54, the shape of the cylindrical portion 13 is adjusted and the fine drawing mechanism is formed. In the drawing with 56, the shape of the shoulder 15a between the annular flange 60 and the cylindrical portion 13 is adjusted, and in the drawing with the shaping drawing mechanism 57, from the annular flange 60, the cylindrical portion 13 and the shoulder 15a. The entire shape of the bearing element body 5 is shaped.

  The initial squeezing mechanism 52 includes a squeeze punch 51 fixed to the upper base 94 and a die 61 that is fixed to the intermediate base 91 a and supports the annular flange 60 of the bearing element 5 that is pressed by the squeeze punch 51. And a rod 52a that is disposed on the intermediate base 91a so as to be movable up and down and whose upper surface is in contact with the bottom portion 14, and is disposed between the rod 52a and the intermediate base 91a and elastically moves the rod 52a upward. And a coil spring 52b for biasing to the bearing element of the multilayer plate member 3 in which the edge 7 and the part 9a of the connecting part 9 are bent by the edge bending means 8 and the connecting part bending means 10, respectively. The body 5 is initially drawn by the drawing punch 51 and the drawing punch 51 to form the bearing body 5 composed of the annular flange 60, the cylindrical portion 13, the bottom 14 and the shoulder 15a. The base 94 is shown in FIG. As shown in FIG. 13, the cylindrical portion 13 and the bottom portion 14 are pushed out of the die 61 by the rod 52a elastically biased upward by the coil spring 52b as shown in FIG. ing.

  The redrawing mechanism 54 includes a drawing punch 53 fixed to the upper base 94 and a die 63 that is fixed to the intermediate base 91 a and supports the annular flange 60 of the bearing element body 5 that is pressed against the drawing punch 53. And a rod 54a which is arranged on the intermediate base 91a so as to be movable up and down and whose upper surface is in contact with the bottom 14, and is arranged between a rod 54a and a nut 54c screwed to the lower base 91. And a coil spring 54b that elastically urges the rod 54a upward, and the bearing element body 5 that has been initially drawn by the initial drawing mechanism 52 is redrawn and re-reformed. When the upper base 94 is raised as shown in FIG. 13 after drawing, the cylindrical portion 13 and the bottom portion 14 are shown in FIG. 13 by the rod 54a elastically biased upward by the coil spring 54b. Die 6 So that the push to the outside.

  The micro-drawing mechanism 56 includes a drawing punch 55 fixed to the upper base 94 and a die 65 that is fixed to the intermediate base 91 a and supports the annular flange 60 of the bearing element body 5 that is pressed against the drawing punch 55. And a rod 56a which is arranged on the intermediate base 91a so as to be movable up and down and whose upper surface is in contact with the bottom portion 14, and is arranged between the rod 56a and a nut 56c screwed to the lower base 91. And a coil spring 56b that elastically urges the rod 56a upward, so that the bearing body 5 redrawn by the redraw mechanism 54 is subjected to a minute drawing and a minute amount. When the upper base 94 is raised as shown in FIG. 13 after drawing, the cylindrical portion 13 and the bottom portion 14 are shown in FIG. 13 by the rod 56a elastically biased upward by the coil spring 56b. like Lee 65 so that the push to the outside.

  The shaping and drawing mechanism 57 includes a drawing punch 57a fixed to the upper base 94, and a die 66 that is fixed to the intermediate base 91a and supports the annular flange 60 of the bearing element 5 that is pressed by the drawing punch 57a. And a rod 57b which is arranged on the intermediate base 91a so as to be movable up and down and whose upper surface is in contact with the bottom portion 14, and is arranged between the rod 57b and a nut 57c screwed to the lower base 91. And a coil spring 57d that elastically urges the rod 57b upward. The bearing element body 5 is formed by a minute drawing mechanism 56 and is shaped and drawn. When the upper base 94 is raised as shown in FIG. 13 after drawing, the cylindrical portion 13 and the bottom portion 14 are shown in FIG. 13 by the rod 57b elastically biased upward by the coil spring 57d. So that the push to the outside die 66 as.

  The position adjustment mechanism 58 is fixed to the upper base 94 and is inserted into the recess 15 of the bearing element body 5, and is fixed to the intermediate base 91a and the adjustment punch 67 is inserted therein. A die 68 that supports the bearing element 5 having the recess 15 from the metal plate layer 31 side, a rod 58a that is arranged on the intermediate base 91a so as to be movable up and down, and whose upper surface abuts against the bottom 14, and a rod 58a; A coil spring 58b disposed between the intermediate base 91a and elastically biasing the rod 58a upward is provided, and after the initial drawing by the initial drawing mechanism 52, the redrawing mechanism 54 is provided. Prior to redrawing by the step, the cylindrical portion 13 and the like are clamped by the adjustment punch 67 and the die 68 to adjust the center position of the cylindrical portion 13 and the like, and the upper base 94 after adjustment is shown in FIG. As shown in When it is elevated, the cylindrical portion 13 and a bottom 14 adapted to push the outer die 68 as shown in FIG. 13 by resiliently biased rod 58a upwardly with a coil spring 58b.

  As shown in detail in FIGS. 6 and 7 in particular, the bottom punching means 19 is fixed to the upper base 94 and has a bottom punch having an outer diameter smaller than the inner diameter of the cylindrical portion 13 of the bearing element body 5. 71, and the annular flange 60, the cylindrical portion 13 and the peripheral portion 17 of the bearing element 5 which are fixed to the intermediate base 91a and in which a part 18 of the bottom 14 is punched out by the bottom punch 71 are connected to the metal plate layer 31. The die 72 includes a large-diameter hole die 72b that holds the annular flange 60 and the cylindrical portion 13, and a small-diameter hole die 72c that holds the peripheral edge portion 17. In addition, the bottom of the bearing element 5 drawn by the drawing means 16 is removed. In this example, the cutting edge 72a of the small-diameter hole die 72c has a gentle curved surface of about 0.5 mm.

  As shown in detail in FIGS. 8 and 9A in particular, the expansion means 20 is fixed to the upper base 94 and has an end having a diameter substantially the same as the inner diameter of the cylindrical portion 13 of the bearing element body 5. A part-diameter punch 73, a die 74 fixed to the intermediate base 91a and supporting the annular flange 60 and the cylindrical part 13 of the bearing element body 5 from the metal plate layer 31 side, the intermediate base 91a and the lower base 91a And a rod 20b that is arranged on the base 91 so as to be movable up and down, and abuts against the annular lower end surface 20a of the cylindrical portion 13 by pushing up to push the cylindrical portion 13 out of the hole of the die 74. The peripheral portion 17 which is the end portion on the bottom side is expanded by the end diameter-enlarging punch 73 inserted into the shaped portion 13 and the diameter is expanded, and the upper base 94 is shown in FIG. When raised, the cylindrical portion 13 is moved by the rod 20b. So that the push out die 74 as shown in 13.

  As shown in detail in FIGS. 10 and 11 in particular, the end shaping means 26 is arranged on the intermediate base 91a and the lower base 91 so as to be movable up and down and at the end of the bearing element body 5 so as to be pushed. A cylindrical end shaping punch 77 having a small-diameter cylindrical portion 76 in contact with the expanded peripheral edge portion 17 from the sliding layer 2 side, and a cylindrical shape of the bearing element body 5 fixed to the upper stripper plate 95. An inner peripheral shaping punch 79 that comes into contact with the inner peripheral surface of the portion 13 and a die 80 that is fixed to the intermediate base 91a and supports the bearing element body 5; By pushing up, the end shaping punch 77 is brought into contact with the peripheral edge 17 expanded by the expansion means 20 and is expanded at the bottom end of the cylindrical portion 13 of the bearing element body 5. To shape the peripheral edge 17 When the upper base 94 is raised after the end shaping as shown in FIG. 13, the cylindrical shaping portion 13 is pushed out of the die 80 by the end shaping punch 77 as shown in FIG. It has become.

  In this example, as shown in detail in FIGS. 12A and 12B, the discharge means 21 is fixed to the upper base 94 and is in contact with the annular flange 60 from the sliding layer 2 side. And a die 82 that is fixed to the intermediate base 91 a and shears the bearing element 5 at the peripheral edge of the annular flange 60 in cooperation with the punch 81, and is separated from the connecting portion 9 by the punch 81 and the die 82. And a discharge hole 83 provided in the intermediate base 91 a for discharging the bearing element body 5 completed as the multi-layer sliding bearing B from the manufacturing apparatus 1. The bearing element body 5 whose end is shaped is discharged as a multi-layer sliding bearing B with a flange A downward from the intermediate base 91a.

  Each of the rod 20b and the end shaping punch 77 is elastically pushed upward by the elastic push-up means 86, and the elastic push-up means 86 is fixed to the lower base 91 and the intermediate base 91a. 86a and 86b, a push-up plate 86c guided and supported by the guide rods 86a and 86b so as to move up and down, and a coil disposed between a nut 86d screwed to the push-up plate 86c and the large diameter portion at the lower end of the rod 20b. Between the spring 86e, the coil spring 86g disposed between the nut 86f screwed to the push-up plate 86c and the lower end large-diameter portion of the end shaping punch 77, and the enormous portion of the guide rod 86b and the push-up plate 86c And when the upper base 94 is lifted as shown in FIG. 13, the coil springs 86e, 86g and 86h are provided. So that the push respectively the cylindrical portion 13 is raised more rod 20b and end shaping punch 77 to the outer die 74 and die 80 as shown in FIG. 13.

  The progressive feeding means 22 intermittently rotates the pair of rollers 22a sandwiching the multilayer board 3 to feed out the multilayer board 3 and intermittently at every predetermined distance L (about 56 mm in this example) in the feed direction Y. Is provided with a feeding mechanism 22b for moving the multilayer plate material 3. The feeding mechanism 22b is a multi-layer plate material in which a plurality of disk-shaped bearing elements 5 are to be formed at a processing position of the pilot hole forming means 25 at a position in the feed direction Y of the multi-layer plate material 3 in which the pilot holes 24 are to be formed. 3 in the feed direction Y is the processing position of the bearing element forming means 6, and the site in the feed direction Y of the multilayer board 3 to be bent the edge 7 of the multilayer board 3 is the processing position of the edge bending means 8. The part in the feed direction Y of the multilayer plate 3 to bend the part 9a of the connecting part 9 is the processing position of the connecting part bending means 10, and the part in the feed direction Y of the multilayer board 3 to be formed with the recess 15 is A portion in the feed direction Y of the multilayer board 3 to punch out a part 18 of the bottom 14 at the processing position of the drawing means 16 is moved to a processing position of the bottom punching means 19 in the feed direction Y of the multilayer board 3 to be expanded. Part In the processing position of the spreading means 20, the part in the feed direction Y of the multilayer plate material 3 whose bottom end is to be shaped is the processing position of the end shaping means 26, and the manufacturing apparatus 1 for the multilayer sliding bearing 1 The multi-layer plate material 3 is fed out every predetermined distance L so that the portions in the feed direction Y of the multi-layer plate material 3 from which the bearing element body 5 is to be discharged are respectively arranged at the discharge position of the discharge means 21. .

  The pilot hole forming means 25 includes a punch 25a for forming a pilot hole 24a for positioning the front row side bearing element body 5 in the multilayer plate 3 before the unnecessary portion 4 is punched out by the front row bearing element body forming means 41. A pilot hole forming punch (not shown) for forming pilot holes 24b for positioning the bearing element 5 on the rear row side in the multilayer plate 3 before the unnecessary portion 4 is punched out by the rear row bearing element forming means 42. It is equipped with. Each of the pilot holes 24a and 24b is detected by a detector or the like during processing. In the multi-layer sliding bearing manufacturing apparatus 1 of this example, the detector is set to the position of the pilot holes 24a and 24b. When a mismatch with the position is detected, the operation of the multi-layer plain bearing is temporarily stopped.

  The manufacturing apparatus 1 of the multi-layer sliding bearing of this example configured as described above moves the multi-layer plate material 3 intermittently in the feed direction Y every predetermined distance L in the forward feeding process by the forward feeding means 22 and moves the multilayer On the plate member 3, the bearing element forming means 6, the edge bending means 8, the connecting part bending means 10, the draw forming means 16, the bottoming means 19, the expansion means 20, the end shaping means 26, the discharge means 21, and the pilot hole Processing by each of the forming means 25 is performed simultaneously.

  In the forward feed process by the forward feed means 22, as shown in FIG. 13, the upper stripper plate 95, the lower stripper plate 93, and the intermediate base 91 a are separated from each other based on the rise of the upper base 94, and After the cylindrical portion 13 is extracted from the dies 61, 63, 65, 66, 68, 72, 74 and 80, the feeding mechanism 22b starts to feed the multilayer board 3 and feeds the multilayer board 3 in the feed direction Y. Are moved by a distance L (about 56 mm in this example) that is two rows before and after the bearing element body 5.

  In the front row bearing body forming step by the front row bearing body forming means 41, a punching punch in which the unnecessary portion 4 in the portion of the multilayer plate 3 positioned with reference to the position of the pilot hole 24a is lowered together with the upper base 94. As shown in FIG. 14, a plurality of (in this example, five) disc-shaped bearing elements on the front row are punched out from the sliding layer 2 side by 43 and arranged side by side in the width direction of the multilayer plate material 3. 5a is formed simultaneously. In the rear row bearing element forming step by the rear row bearing element forming means 42, a punching punch in which the unnecessary portion 4 in the portion of the multilayer plate 3 positioned with reference to the position of the pilot hole 24b is lowered together with the upper base 94. As shown in FIG. 14, a plurality of (in this example, five) disc-shaped bearing elements on the rear row side that are arranged side by side in the width direction of the multilayer plate member 3 as shown in FIG. 5b is formed simultaneously. Here, in the rear row bearing element forming step, after the plurality of bearing elements 5a on the front row side are formed in the front row bearing element forming step, the multi-layer plate material 3 is forwarded more than once in the forward feeding step, and then the rear row side A plurality of bearing element bodies 5b are formed. The plurality of bearing elements 5a and 5b formed in this way are in a staggered arrangement with each other in this example. The unnecessary portion 4 punched by the punching punches 43 and 44 is discharged from a hole 96 for dropping formed in each part of the lower base 91 located below the punching punches 43 and 44. Is done.

  In the edge bending step by the edge bending means 8, as shown in FIG. 4, a multilayer plate material is formed by a push-up punch 45 protruding from the lower stripper plate 93 that is pushed down by the upper stripper plate 95 based on the lowering of the upper base 94. 3. Both edge portions 7 of 3 are pushed up from the metal plate layer 31 side, and both edge portions 7 are raised upward by about 1.5 mm. In this example, the push-up punch 45 bends a range of about 56 mm of the multilayer board 3 in the feed direction Y by a single push-up operation.

  In the connecting portion bending step by the connecting portion bending means 10, the connecting portion 9 is moved from the metal plate layer 31 side by the push-up punch 46 protruding from the lower stripper plate 93 pushed down by the upper stripper plate 95 based on the lowering of the upper base 94. While pushing up, the holding member 47 is brought into contact with the plurality of bearing elements 5a to hold down the bearing elements 5a, whereby a part 9a of the connecting portion 9 is bent as shown in FIG.

  In the drawing process by the drawing means 16, the initial drawing mechanism 52, the redrawing mechanism 54, the fine drawing mechanism 56, and the shaping drawing mechanism 57 are divided into a plurality of times so that the bearing element 5 is drawn as shown in FIG. The shoulder portion 15a is formed between the annular flange 60 and the recess 15 by the initial drawing mechanism 52, and after the drawing by the initial drawing mechanism 52, the center position of the bearing body 5 is formed by the position adjusting mechanism 58. Is adjusted once, the shape of the cylindrical portion 13 of the recess 15 is adjusted by the re-drawing mechanism 54, the shape of the shoulder portion between the annular flange 60 and the recess 15 is adjusted by the fine drawing mechanism 56, and the shaping drawing mechanism 57, the entire shape of the bearing element 5 is shaped.

  In the bottoming process by the bottoming means 19, as shown in FIGS. 6 and 7, a part 18 of the bottom portion 14 of the bearing element 5 supported by the die 72 by the bottom punching punch 71 lowered together with the upper base 94. Is pressed from the sliding layer 2 side to cause fluid deformation in the sliding layer 2, and the bottom punch 71 is lowered to a bottom dead center set so as not to contact the cutting edge of the die 72 and part 18 and the periphery The part 17 is separated. The end face of the peripheral edge portion 17 is covered with the sliding layer 2 that is fluidly deformed as the bottom punch 71 descends. A part 18 of the bottom 14 separated from the peripheral edge 17 is discharged from a punching hole 96.

  In the expansion process by the expansion means 20, as shown in FIG. 9A, the cylindrical portion 13 of the bearing element body 5 is supported by the die 74 with the end diameter enlarged punch 73 lowered together with the upper base 94. The peripheral part 17 is lowered so that the inner diameter of the peripheral part 17 as the end part of the bearing element body 5 is substantially the same as the inner diameter of the cylindrical part 13. It is expanded by the punch 73. In addition, since the reduced diameter return force remains at the end of the bearing element body 5 that has been expanded by the end diameter expanding punch 73, the end portion on the bottom side of the bearing element body 5 is the end diameter expanding punch. After drawing 73, the diameter is slightly reduced as shown in FIG.

  In the end shaping step by the end shaping means 26, as shown in FIGS. 10 and 11, the end shaping punch 77 is pushed up from below and brought into contact with the peripheral edge 17, so that the bottom of the cylindrical portion 13 of the bearing element 5 The end portion on the removal side is shaped, and the inner circumferential shaping punch 79 lowered together with the upper base 94 is brought into contact with the inner circumferential surface of the cylindrical portion 13 to shape the inner circumferential surface shape.

  In the discharging process by the discharging means 21, as shown in FIG. 12A, a shearing force is applied to the peripheral edge of the annular flange 60 of the bearing element 5 by the punch 81 that is lowered together with the upper base 94, thereby bearing element. 5 is separated from the connecting portion 9, and the separated multi-layer sliding bearing B as the separated multi-layer sliding bearing B is discharged from the multi-layer sliding bearing manufacturing apparatus 1 through the discharge hole 83 as shown in FIG. . The remaining connecting portion 9 is shredded by the scrap cutter 100.

  According to the multi-layer sliding bearing manufacturing apparatus 1 described above, a bearing element body that forms a plurality of disk-shaped bearing elements 5 that are punched out from the unnecessary portion 4 of the multilayer plate member 3 having the sliding layer 2 and connected to each other. The central portion 11 of the plurality of disk-shaped bearing element bodies 5 formed by the forming means 6 and the bearing element body forming means 6 is drawn from the sliding layer 2 side to form the recess 15 in the central part 11. A drawing means 16; a bottoming means 19 for punching a part 18 of the bottom 14 from the sliding layer 2 side so as to leave a peripheral edge 17 of the bottom 14 of the recess 15 formed by the drawing means 16; Since it has the expansion means 20 for expanding the peripheral edge portion 17 of the bottom portion 14 of the recess 15 from which the portion 18 of the bottom portion 14 is punched by the extraction means 19 from the sliding layer 2 side, the multilayer sliding bearing B The reduced diameter return force remains at the bottom end of the steel Thus, a multi-layer sliding bearing B having a high sealing property can be manufactured, and a portion of the multi-layer plate material 3 on which a plurality of disk-shaped bearing elements 5 are to be formed is recessed at the processing position of the bearing element forming means 6. The portion of the multilayer board 3 where the place 15 is to be formed is the processing position of the drawing means 16, the part of the multilayer board 3 where the part 18 of the bottom portion 14 is to be punched is the processing position of the bottom punching means 19, and In order to further include a forward feed means 22 for sequentially feeding the multilayer plate material 3 so as to place the portions of the multilayer plate material 3 to be spread at the processing positions of the spread means 20, respectively, for example, a multilayer wound by coil The multi-layer sliding bearing B can be continuously manufactured from the plate material 3 one after another, and the rear row bearing element forming unit 42 of the bearing element forming unit 6 is formed by the front row bearing element forming unit 41 to form a plurality of disk-like elements on the front row side. After the bearing element body 5a is formed, the multilayer plate material 3 is attached to the bearing element body 5 at a time. After the multi-layer plate 3 is sequentially fed two or more times by the forward feeding means 22 that sequentially feeds the front and rear two rows, a plurality of disk-shaped bearing elements 5b on the rear row side are formed. 3 can be reduced, and a large number of recesses 15 can be formed at positions close to each other. Therefore, a high-precision multi-layer sliding bearing B can be manufactured in large quantities at low cost. A connecting portion 9 that connects each of a plurality of disc-shaped bearing element bodies 5 formed by the edge bending means 8 and the bearing element forming means 6 that bend the edge 7 in the width direction of the multilayer plate material 3. The drawing forming means 16 further includes a bending portion 10 for bending the edge plate 7 and the connecting portion bending means 10 after the edge portion 7 and the connecting portion 9 are bent. Bearing element body 5 Therefore, it is possible to eliminate the bending of the multilayer plate material 3 itself, and to manufacture the multilayer sliding bearing B with higher accuracy.

  The multi-layer sliding bearing manufacturing apparatus 1 is arranged between the end shaping means 26 and the discharge means 21 as shown in FIGS. 17 and 18, for example. Coining means 104 for forming an annular groove 103 in the sliding layer 2 in the outer peripheral edge 101 of the annular flange 60 of the bearing element 5 with the peripheral edge portion 17 being pushed up from below may be further provided. A cylindrical coining punch 106 fixed to the upper base 94 and having an annular blade 105 for forming an annular groove 103 at the tip thereof, and an annular bearing body 5 in which the annular groove 103 is formed by the coining punch 106. A die 107 that supports the flange portion 60 from the metal plate layer 31 side, and an intermediate base 91 a that is arranged so as to be movable up and down, and that the upper surface is in contact with the bottom end portion of the bearing element body 5. And a coil spring (not shown) that is arranged between the rod 108 and a nut (not shown) screwed to the lower base 91 and elastically biases the rod 108 upward. The annular blade 105 of the coining punch 106 that is lowered together with the upper base 94 is brought into contact with the outer peripheral edge 101 of the annular flange 60 supported by the die 107, and an annular groove is formed in the outer peripheral edge 101. When the upper base 94 is lifted after the formation of the annular groove 103 and the annular groove 103 is formed, the cylindrical portion 13 and the bottom end side end portion are elastically biased upward by a coil spring. May be pushed out of the die 107.

  The multi-layer sliding bearing manufacturing apparatus 1 is arranged between the end shaping means 26 and the discharge means 21 as shown in FIGS. 19 and 20 instead of the coining means 104 shown in FIGS. In addition, the coining means 104a for forming the annular groove 103a in the sliding layer 2 in the inner peripheral edge portion 102 of the annular flange 60 of the bearing element 5 in which the peripheral edge portion 17 of the bottom portion 14 is pushed up and shaped by the end shaping means 26 from below. Such a coining means 104a is fixed to the upper base 94 and has a coining punch 106a having an annular blade 105a for forming the annular groove 103a at the tip thereof, and an annular groove by the coining punch 106a. 103a can be moved up and down on an intermediate base 91a and a die 107a that supports the annular flange 60 of the bearing element body 5 on which the metal plate layer 31 is formed. The upper surface of the bearing element 5 is in contact with the bottom end of the bearing element 5 and a nut 108 (not shown) screwed to the lower base 91. And a coil spring (not shown) that elastically urges the rod 108a upward, and an annular blade 105a supported by the die 107a on the annular blade 105a of the coining punch 106a lowered together with the upper base 94. The annular groove 103a is formed in the inner peripheral edge portion 102 in contact with the inner peripheral edge portion 102 of the portion 60. When the upper base 94 is raised after the formation of the annular groove 103a, the coil spring is elastically upward. Alternatively, the cylindrical portion 13 and the bottom end portion may be pushed out of the die 107a by the rod 108a that is urged.

  The inner angle at which the two defining surfaces 109 defining the annular groove 103 or 103a intersect each other may be 60 degrees or less, and the coining punches 106 and 106a may be cylindrical.

  When the coining means 104 for forming the annular groove 103 shown in FIGS. 17 and 18 is provided, the manufacturing apparatus 1 for the multi-layer sliding bearing is replaced with the discharging means 21 as shown in FIGS. 21 and 22. The bearing element 5 is punched from the sliding layer 2 side so as to be sheared at the portion of the annular groove 103 of the outer peripheral edge portion 101 to obtain a multilayer sliding bearing B with ridge A, and the multilayer sliding bearing with ridge A is obtained. The discharge means 111 for discharging the bearing B may be provided. The discharge means 111 is fixed to the upper base 94 and has a diameter substantially the same as that of the outer peripheral edge portion 101 of the annular flange 60. The punch 112 for punching the element body 5 and the bearing element body 5 fixed to the intermediate base 91 a and formed with the annular groove 103 in cooperation with the punch 112 are sheared at the outer peripheral edge 101 of the annular flange 60. Die 113, punch 112 and A bearing in which a multi-layer sliding bearing B obtained by shearing with a die 113 is provided with a discharge hole 114 provided in the intermediate base 91a so as to be discharged from the manufacturing apparatus 1, and an annular groove 103 is formed by a coining means 104. The element body 5 may be discharged downward from the intermediate base 91a as a multi-layer sliding bearing B with a flange A.

  When the coining means 104a for forming the annular groove 103a shown in FIGS. 19 and 20 is provided, the multilayer sliding bearing manufacturing apparatus 1 is replaced with the discharging means 21 as shown in FIGS. Then, the bearing element body 5 is punched from the sliding layer 2 side so as to be sheared at the portion of the annular groove 103a of the inner peripheral edge portion 102 to obtain a multilayer sliding bearing C without 鍔 A. The discharge means 111a for discharging the slide bearing C may be provided, and the discharge means 111a is fixed to the upper base 94 and has substantially the same diameter as the inner peripheral edge portion 102 of the annular flange portion 60. The punch 112a for punching the bearing element 5 and the bearing element 5 fixed to the intermediate base 91a and formed with the annular groove 103a in cooperation with the punch 112a are formed at the inner peripheral edge 102 of the annular flange 60. Shearing die 113 And a discharge hole 114a provided in the intermediate base 91a for discharging the multi-layer sliding bearing C obtained by shearing by the punch 112a and the die 113a from the manufacturing apparatus 1, and the annular groove 103 is formed by the coining means 104a. The bearing element body 5 on which is formed may be discharged downward from the intermediate base 91a as a multi-layer sliding bearing C without heel A.

  As described above, according to the multi-layer sliding bearing manufacturing apparatus 1 including the coining means 104 or 104a and the discharge means 111 or 111a, the outer peripheral edge 101 or the inner peripheral edge 102 of the annular flange 60 is formed by the coining means 104 or 104a. After the annular groove 103 or 103a is formed in the sliding layer 2 in FIG. 2, the discharge means 111 or 111a performs shearing at the portion of the annular groove 103 or 103a of the outer peripheral edge 101 or the inner peripheral edge 102 of the annular flange 60. The sliding layer 2 can be prevented from breaking during the shearing.

  Further, in this example, the manufacturing apparatus 1 for the multi-layer sliding bearing gives a shearing force to the peripheral edge of the annular flange 60 from the sliding layer 2 side by the punch 81 to separate and discharge the bearing element body 5 from the connecting portion 9. 25, instead of this, as shown in FIG. 25, a cylindrical punching punch 120 fixed to the lower base 91 and having a cylindrical portion at the tip, By cooperating with the die 121 fixed to the upper stripper plate 95, the annular flange 60 of the bearing element 5 is sheared to obtain a multilayer sliding bearing B. The multilayer sliding bearing B is connected to the cylindrical portion 122 via the cylindrical portion 122. The multi-layer plain bearing B pushed out and pushed out upward may be provided with discharge means 124 adapted to eject the manufacturing apparatus 1 from the elastic force of the leaf spring 123 provided on the upper base 94. In such a case, the intermediate base 91 It is arranged to resiliently move up and down. Further, the discharging means 124 may obtain the multilayer sliding bearing C by shearing with the punching punch 120 and the die 121, and discharge the multilayer sliding bearing C in the same manner as described above.

  Each means for processing the bearing element body 5b on the rear row side of the multi-layer sliding bearing manufacturing apparatus 1 described above is shifted by a half of a predetermined distance L from each means for processing the bearing element body 5a on the front row side shown in FIG. The bearing element body 5b on the rear row side is processed in the same manner as the processing for the bearing element body 5a on the front row side.

It is a perspective view of the multilayer sliding bearing manufactured by the example of embodiment of this invention. It is side sectional explanatory drawing of the example of embodiment of this invention. FIG. 3 is an explanatory plan view of the example shown in FIG. 2. FIG. 3 is a partially enlarged explanatory view mainly of edge bending means of the example shown in FIG. 2. FIG. 3 is a partially enlarged explanatory view mainly of a drawing means in the example shown in FIG. 2. FIG. 3 is an enlarged explanatory view mainly showing bottoming means in the example shown in FIG. 2. FIG. 3 is a partially enlarged explanatory view of mainly bottoming means in the example shown in FIG. 2. FIG. 3 is an enlarged explanatory view mainly showing a spreading means in the example shown in FIG. 2. (A) is a partially enlarged explanatory view of the example shown in FIG. 2 mainly at the time of expansion by the expansion means, and (b) is mainly after the expansion by the expansion means of the example shown in FIG. FIG. FIG. 3 is an enlarged explanatory view mainly of an end shaping means of the example shown in FIG. 2. FIG. 3 is a partially enlarged explanatory view mainly of an end shaping means of the example shown in FIG. 2. (A) is a partially enlarged explanatory view of the example of the example shown in FIG. 2 when the bearing element body is separated mainly by the discharging means, and (b) is a bearing element body mainly of the discharging means of the example shown in FIG. It is a partially expanded explanatory view after separation. It is operation | movement explanatory drawing of the example shown in FIG. It is a partially expanded plan explanatory view of the multilayer board processed by the example shown in FIG. It is a partial expanded plane explanatory view of the multilayer board processed by the connection part bending means. It is a cross-sectional explanatory drawing of the multilayer board | plate material processed by the example shown in FIG. FIG. 3 is an enlarged explanatory view mainly of coining means when the coining means of the example shown in FIG. 2 is provided. FIG. 3 is a partially enlarged explanatory view mainly of coining means when the coining means of the example shown in FIG. 2 is provided. FIG. 4 is an enlarged explanatory view mainly showing another coining means in the case where the other coining means shown in FIG. 2 is provided. FIG. 4 is a partially enlarged explanatory view mainly of other coining means in the case where the other coining means is provided in the example shown in FIG. 2. FIG. 5 is an enlarged explanatory view mainly of another discharging means when the other discharging means shown in FIG. 2 is provided. It is a partially expanded explanatory view mainly of the other discharge means in the case where the other discharge means is provided in the example shown in FIG. FIG. 5 is an enlarged explanatory view mainly of another discharging means when the other discharging means shown in FIG. 2 is provided. It is a partially expanded explanatory view mainly of the other discharge means in the case where the other discharge means is provided in the example shown in FIG. It is explanatory drawing of the other discharge means mainly in the case of providing the other discharge means in the example shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 2 Sliding layer 3 Multilayer board | plate material 4 Unnecessary part 5, 5a, 5b Bearing element body 6 Bearing element body formation means 7 Edge part 8 Edge part bending means 9 Connection part 9a, 18 part 10 Connection part bending means 11 Center Part 14 Bottom part 15 Recess 16 Drawing part 17 Peripheral part 19 Bottoming part 20 Expanding part 21, 111, 111a, 124 Discharge means 25 Pilot hole forming means 26 End shaping means 104, 104a Coining means

Claims (26)

  A bearing element forming process for forming a plurality of disk-shaped bearing elements that are punched out of a multilayer plate material having a sliding layer and connected to each other, and a plurality of disk-shaped bearing elements formed in the bearing element forming process A drawing process in which the center part of the body is drawn from the sliding layer side to form a recess in the center part, and the bottom part of the bottom part is left so that the peripheral edge of the bottom part of the recess formed in the drawing process remains. Multi-layer sliding comprising a bottom punching process for punching a portion from the sliding layer side, and a spreading process for expanding the peripheral edge of the bottom of the recess, in which a part of the bottom is punched in the bottom punching process, from the sliding layer side Manufacturing method of bearing.   The part of the multilayer plate that should form a plurality of disc-shaped bearing elements is the processing position in the bearing element forming process, and the part of the multilayer plate that is to form the recess is the processing position in the drawing process. The multi-layer plate material is to be placed at the processing position of the bottoming process, and the peripheral edge of the bottom of the recess to be expanded is disposed at the processing position of the expansion process. The method for manufacturing a multi-layer plain bearing according to claim 1, further comprising a progressive feeding step of progressive feeding.   The bearing element forming step includes a front row bearing element forming step for forming a plurality of disc-shaped bearing elements on the front row arranged adjacent to each other in the width direction of the multilayer plate member, and a front row bearing element forming step. A plurality of disk-shaped bearing elements that are located on the rear line side and are arranged adjacent to each other in the width direction of the multilayer plate material are formed with respect to the plurality of disk-shaped bearing elements on the front row formed in The manufacturing method of the multilayer sliding bearing of Claim 1 or 2 which comprises the back row bearing element | base_body formation process to perform.   The rear row bearing element forming step is a forward feed that sequentially feeds the multi-layer plate material by two rows before and after the bearing element body after a plurality of disc-shaped bearing elements on the front row side are formed in the front row bearing element forming step. The method for manufacturing a multi-layer sliding bearing according to claim 3, wherein a plurality of disk-shaped bearing elements on the rear row side are formed after the multi-layer plate material is fed forward twice or more in the process.   5. The method of manufacturing a multi-layer sliding bearing according to claim 1, wherein in the bearing element body forming step, a plurality of disk-shaped bearing element elements arranged in a staggered manner are formed.   6. The multi-layer sliding bearing according to claim 5, wherein the front row bearing element forming step and the rear row bearing element forming step form a front row side bearing element body and a rear row side bearing element body that are staggered with respect to each other. Method.   Further comprising an edge bending step of bending the edge portion in the width direction of the multilayer plate material, and after the edge portion is bent in the edge bending step, the drawing of the bearing element body of the multilayer plate material by the draw forming step is performed. Item 7. A method for producing a multilayer plain bearing according to any one of Items 1 to 6.   And further comprising a connecting portion bending step of bending a connecting portion for connecting each of the plurality of disc-shaped bearing elements formed in the bearing element forming step, and after the connecting portion is bent in the connecting portion bending step. The manufacturing method of the multilayer sliding bearing as described in any one of Claim 1 to 7 which performs the drawing of the bearing element | base_body of the multilayer board | plate material by a drawing process.   The method for manufacturing a multilayer sliding bearing according to any one of claims 1 to 8, wherein the drawing is performed a plurality of times in the drawing process.   The compounding method according to any one of claims 1 to 9, further comprising an end shaping step of pushing up and shaping a peripheral edge portion of a bottom portion as an end portion of the bearing element body expanded in the pushing expansion step. A method for manufacturing a layered plain bearing.   2. A coining step of forming an annular groove in a sliding layer at an outer peripheral edge or an inner peripheral edge of an annular flange of a bearing element body, wherein the peripheral edge of the bottom is pushed up and shaped from below in the end shaping step. A method for producing a multilayered plain bearing according to claim 10.   The bearing element in which the annular groove is formed in the sliding layer on the outer peripheral edge of the annular flange portion in the coining process is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the outer peripheral edge. The method for producing a multilayer sliding bearing according to claim 11, further comprising a discharging step of obtaining the sliding bearing and discharging the flanged multilayer sliding bearing.   The bearing element in which the annular groove is formed in the sliding layer on the inner peripheral edge of the annular flange in the coining process is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the inner peripheral edge. The method for producing a multi-layer sliding bearing according to claim 11, further comprising a discharging step of obtaining the sliding bearing and discharging the multi-layer sliding bearing without wrinkles.   Bearing element forming means for forming a plurality of disk-shaped bearing elements that are punched out from a multilayer plate material having a sliding layer and connected to each other, and a plurality of disk-shaped bearing elements formed by the bearing element forming means A drawing forming means for drawing a central portion of the body from the sliding layer side to form a recess in the central portion, and a bottom portion of the bottom portion so as to leave a peripheral edge of the bottom of the recess formed by the drawing forming means. A multi-layer slide comprising a bottom punching means for punching a portion from the sliding layer side, and a spreading means for pushing the peripheral edge of the bottom of the recess part punched by the bottom punching means from the sliding layer side Bearing manufacturing equipment.   A portion of the multilayer plate material in which a plurality of disc-shaped bearing elements are to be formed is a processing position of the bearing element body forming means, and a portion of the multilayer plate material in which a recess is to be formed is a processing position of the drawing means, The multi-layer plate material is to be sequentially fed so that a portion of the multi-layer plate material to be punched out is placed at the processing position of the bottoming means, and the multi-layer plate material portion to be expanded is arranged at the processing position of the expansion means. The multi-layer plain bearing manufacturing apparatus according to claim 14, further comprising a progressive feed means.   The bearing element forming means includes a front row bearing element forming means for forming a plurality of disc-shaped bearing elements on the front row arranged adjacent to each other in the width direction of the multilayer plate material, and a front row bearing element forming means. A plurality of disc-shaped bearing elements are arranged on the rear row side and arranged adjacent to each other in the width direction of the multilayer plate material with respect to the plurality of disc-shaped bearing elements on the front row formed by The apparatus for producing a multi-layer sliding bearing according to claim 14 or 15, further comprising rear row bearing element body forming means.   The rear row bearing element forming means is a forward feed that sequentially feeds the multi-layer plate material by two rows before and after the bearing element body after a plurality of disc-shaped bearing elements on the front row side are formed by the front row bearing element forming means. The multi-layer sliding bearing manufacturing apparatus according to claim 16, wherein a plurality of disc-shaped bearing elements on the rear row side are formed after the multi-layer plate material is sequentially fed two or more times by the means.   18. The multi-layer sliding bearing manufacturing apparatus according to any one of claims 14 to 17, wherein the bearing element forming means forms a plurality of disk-shaped bearing elements arranged in a staggered manner.   19. The front row bearing element forming means and the rear row bearing element forming means form a front row side bearing element body and a rear row side bearing element body that are staggered with respect to each other. Laminar plain bearing manufacturing equipment.   Further comprising edge bending means for bending the edge in the width direction of the multilayer plate material, the draw forming means draws the bearing element body of the multilayer plate material after the edge is bent by the edge bending means. The multi-layer sliding bearing manufacturing apparatus according to any one of claims 14 to 19, wherein the manufacturing apparatus is a multi-layer sliding bearing.   It further comprises a connecting part bending means for bending a connecting part for connecting each of a plurality of disk-shaped bearing element bodies formed by the bearing element forming means, and the draw forming means is connected by the connecting part bending means. The multi-layer sliding bearing manufacturing apparatus according to any one of claims 14 to 20, wherein a bearing element body of a multi-layer plate material is drawn after being bent.   The apparatus for producing a multi-layer sliding bearing according to any one of claims 14 to 21, wherein the drawing means performs drawing of the bearing element body a plurality of times.   23. The compound according to any one of claims 14 to 22, further comprising end shaping means for pushing up and shaping a peripheral edge portion of a bottom portion as an end portion of the bearing element body expanded by the expansion means from below. Laminar plain bearing manufacturing equipment.   Claims further comprising coining means for forming an annular groove in the sliding layer at the outer peripheral edge or inner peripheral edge of the annular flange of the bearing element body, wherein the peripheral edge of the bottom is pushed up and shaped from below by the end shaping means. 23. A manufacturing apparatus for a multi-layer sliding bearing according to claim 23.   A bearing element in which an annular groove is formed in the sliding layer on the outer peripheral edge of the annular flange by coining means is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the outer peripheral edge. The multi-layer sliding bearing manufacturing apparatus according to claim 24, further comprising discharge means for obtaining the sliding bearing and discharging the flanged multi-layer sliding bearing.   The bearing element body in which the annular groove is formed in the sliding layer on the inner peripheral edge of the annular flange portion by coining means is punched from the sliding layer side so as to be sheared at the portion of the annular groove on the inner peripheral edge portion. 25. The apparatus for producing a multi-layer slide bearing according to claim 24, further comprising discharge means for obtaining the slide bearing and discharging the multi-layer slide bearing without wrinkles.

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