JP6429675B2 - Washer manufacturing method - Google Patents

Description

The present invention includes a first member, a technique of producing how the washer comprising a second member made of a different material than the first member.

  2. Description of the Related Art Conventionally, a technique for a washer having a member formed of a material whose sliding part and other parts are different has been publicly known. Since such a washer is manufactured using, for example, an expensive bimetal material, a technique for improving the material yield is required. As a technique for improving the material yield, for example, a method described in Patent Document 1 is known.

  In the technique described in Patent Document 1, a plurality of arc-shaped divided race pieces are formed by pressing a steel plate, the ends of the arc-shaped divided races are butted together, and the butted portions are joined by laser welding to provide a washer ( A roller bearing race).

  However, in the technique described in Patent Document 1, all the steel plates cannot be used because the steel plates are punched along the shape of the arc-shaped divided race pieces (see scrap 901 shown in FIG. 9). There is room for improvement in this respect regarding the technology for improving the material yield.

JP 2008-101737 A

The present invention has been made in view of the above-described circumstances, is to provide a manufacturing how a washer which can improve the material yield.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, in claim 1, by bending the longitudinal member, the first member formed in an arc shape when viewed from one direction and the longitudinal member made of a material different from the first member are bent. By preparing the second member formed in an arc shape when viewed from the one direction, and arranging the first member and the second member side by side along the one direction, An attachment step for attaching the first member and the second member.

  According to a second aspect of the present invention, the attaching step includes a caulking step for caulking at least one of the first member and the second member with respect to the other.

  In claim 3, in the preparation step, the first member having a depression on the second member side is prepared, and in the attachment step, the second member is arranged inside the depression. Further, the method further includes a deformation step in which the second member is crushed and plastically deformed so as to follow the shape of the recess.

  According to a fourth aspect of the present invention, the method further includes an adjustment step of adjusting a thickness of at least one of the first member and the second member in a state where the first member and the second member are attached. Is.

  In Claim 5, said 1st member and / or said 2nd member are formed from a column-shaped longitudinal member.

  As effects of the present invention, the following effects can be obtained.

  In the first aspect, the material yield can be improved.

  In Claim 2, it can suppress easily that a 1st member and a 2nd member remove | deviate.

  In Claim 3, it can suppress that a 1st member and a 2nd member remove | deviate.

  In the fourth aspect, the thickness of the washer can be arbitrarily adjusted.

  In the fifth aspect, the washer can be easily manufactured.

The flowchart of the manufacturing method of the washer which concerns on one Embodiment of this invention. (A) The perspective view of a 1st longitudinal member. (B) The perspective view of the 1st longitudinal member which comprises a board part, a 1st wall part, and a 2nd wall part. (A) The top view of the base member immediately after prepared. (B) AA line sectional view shown in Drawing 3 (a). (A) The perspective view of a 2nd longitudinal member. (B) The top view of the sliding member immediately after being prepared. (A) The top view which shows the state in which the sliding member was mounted in the base member. (B) Cross section similarly. (A) Sectional drawing which shows the state which crushed the sliding member. (D) Sectional drawing which shows the state which formed the crimp part in the base member. (C) Sectional drawing which shows the state which adjusted the thickness of the sliding member. (A) The top view of the washer which concerns on one Embodiment of this invention. (B) Similarly bottom view. (C) BB sectional drawing shown in FIG.7 (b). The bottom view of the washer concerning another embodiment of the present invention. The figure which shows the scrap which is the stamped steel plate.

  In the following, the directions indicated by arrow U, arrow D, arrow F, arrow B, arrow L and arrow R in the figure are defined as upward, downward, forward, backward, leftward and rightward, respectively. To explain.

  Below, the manufacturing method of the washer 1 which concerns on one Embodiment of this invention, and the washer 1 are demonstrated.

  The washer 1 shown in FIG. 7 is a member for receiving an appropriate load. The washer 1 is formed in a semicircular shape (arc shape) in plan view. The washer 1 includes a base member 10 and a sliding member 20, and is manufactured by attaching the sliding member 20 to the base member 10.

  First, a method for manufacturing the washer 1 for manufacturing the washer 1 will be described.

  As shown in FIG. 1, in the manufacturing method of the washer 1, first, a preparation process is performed (step S10). The preparation step is a step of preparing the base member 10 and the sliding member 20. In the preparation process, the base member 10 is prepared by performing the following processing on the first longitudinal member 30 shown in FIG.

  As shown in FIG. 2 (a), the first longitudinal member 30 has a substantially plate-like member (a longitudinal direction extending in a predetermined direction) with its longitudinal direction directed in the left-right direction and its plate surface directed in the vertical direction. Member). The first longitudinal member 30 is made of a metal material such as iron. The first longitudinal member 30 is manufactured, for example, by cutting a linear metal member with an appropriate length.

  In the preparation step, as shown in FIG. 2B, the rear end portion of the first longitudinal member 30 is subjected to appropriate processing such as bending processing on the first longitudinal member 30, It is bent upward. As a result, the left end portion to the right end portion of the rear end portion of the first longitudinal member 30 are bent. The bent portion is formed as the first wall portion 11. The first wall portion 11 is formed to extend in the forward direction as it goes upward.

  In the preparation step, the front end portion of the first longitudinal member 30 is bent upward. As a result, the portion from the left end to the right end at the front end of the first longitudinal member 30 is bent. The bent portion is formed as the second wall portion 12. The second wall portion 12 is formed so as to extend backward as it goes upward.

  Moreover, the part which is not bent in the 1st longitudinal member 30, ie, the front-and-rear halfway part of the 1st longitudinal member 30, is formed as the board part 13 which orient | assigned the plate | board surface to the up-down direction.

  After the first wall portion 11, the second wall portion 12, and the plate portion 13 are formed on the first longitudinal member 30, the first longitudinal member 30 is bent as shown in FIG. By being subjected to such appropriate processing, it is bent in a semicircular shape in plan view. Thereby, the first longitudinal member 30 is prepared as the base member 10.

The first wall portion 11, the second wall portion 12 and the plate portion 13 of the base member 10 prepared as described above are from the left rear end portion (one circumferential end portion) of the base member 10 to the right rear end portion ( It is formed so as to extend in the circumferential direction over the other end in the circumferential direction.
The upper side surface of the base member 10 is formed in a shape that is depressed by the first wall portion 11, the second wall portion 12, and the plate portion 13.

  After the base member 10 is prepared, the sliding member 20 is prepared in the preparation process. At this time, the sliding member 20 is prepared by subjecting the second longitudinal member 40 shown in FIG. 4A to the following processing.

  As shown to Fig.4 (a), the 2nd longitudinal member 40 is a substantially cylindrical member which orient | assigned the longitudinal direction to the left-right direction. The second elongate member 40 is made of a metal material different from the metal material constituting the base member 10 (first elongate member 30). More specifically, the second longitudinal member 40 is made of a metal material such as copper having a lower coefficient of friction than the metal material constituting the base member 10. The second longitudinal member 40 is manufactured, for example, by cutting a linear metal member with an appropriate length (similar to the first longitudinal member 30 before being bent into a semicircular shape in plan view). The second longitudinal member 40 can be placed on the plate portion 13 of the base member 10, and the upper end portion of the second longitudinal member 40 is placed on the plate portion 13 from the first wall portion 11 and the second wall portion 12. Also has an outer diameter that projects upward (see FIG. 5B).

  In the preparation step, as shown in FIG. 4B, the second longitudinal member 40 is subjected to an appropriate process such as a bending process so that it has a semicircular shape in plan view substantially the same as the base member 10. Bend. Thereby, the second longitudinal member 40 is prepared as the sliding member 20.

  As shown in FIG. 1, after the preparation process is performed, in the method for manufacturing the washer 1, a deformation process is performed (step S20). The deformation process is a process of plastically deforming the sliding member 20. In the deformation step, first, as shown in FIG. 5, the sliding member 20 is placed on the base member 10. Thereby, the base member 10 and the sliding member 20 are arranged side by side in the vertical direction so that the lower end portion of the sliding member 20 contacts the plate portion 13. At this time, the upper end portion of the sliding member 20 projects upward from the first wall portion 11 and the second wall portion 12. Further, a gap is formed between the inner surface of the first wall portion 11, the upper surface of the plate portion 13, and the outer peripheral surface of the sliding member 20. A gap is formed between the inner surface of the second wall portion 12, the upper surface of the plate portion 13, and the outer peripheral surface of the sliding member 20.

  After the base member 10 and the sliding member 20 are arranged side by side, in the deformation step, as shown in FIG. 6A, the sliding member 20 is pressed and crushed from above. Thereby, the sliding member 20 is arranged so as to follow the shape of the inner surface of the first wall portion 11 and the upper surface of the plate portion 13 (the inner surface of the first wall portion 11 and the upper surface of the plate portion 13). It is plastically deformed so as to fill a gap between the outer peripheral surface of the sliding member 20. The plastically deformed portion is formed as the first fitting portion 21. Further, the sliding member 20 slides along the shape of the inner side surface of the second wall portion 12 and the upper side surface of the plate portion 13 (the inner side surface of the second wall portion 12 and the upper side surface of the plate portion 13 slide with each other. Plastic deformation is performed so as to fill a gap between the moving member 20 and the outer peripheral surface. The plastically deformed portion is formed as the second fitting portion 22.

  By forming the first fitting portion 21 and the second fitting portion 22 in this way, the base member 10 can be configured so that the first wall portion 11 and the sliding member 20 are moved upward. The sliding member 20 can be hooked on the second wall portion 12, and the sliding member 20 can be restricted from coming off.

  When the sliding member 20 is crushed, the upper end portion (upper side surface) of the sliding member 20 is formed in a flat shape. Thus, the upper surface of the sliding member 20 formed in a flat shape is formed as the sliding portion 23.

  As shown in FIG. 1, after performing a deformation | transformation process, in the manufacturing method of the washer 1, a crimping process is performed (step S30). The caulking process is a process of caulking the base member 10 against the sliding member 20. In the caulking step, as shown in FIG. 6 (b), the first wall portion 11 and the second wall portion 12 of the base member 10 are crushed so that the upper end portion is close to the plate portion 13. It is caulked against the first fitting portion 21 and the second fitting portion 22 of the sliding member 20. At this time, the first wall portion 11 and the second wall portion 12 are caulked with an interval in the circumferential direction. The caulked portion is formed as a caulking portion 14. The caulking portion 14 formed by caulking the first wall portion 11 and the caulking portion 14 formed by caulking the second wall portion 12 are formed so that the positions in the circumferential direction are substantially the same ( FIG. 7B shows a caulking portion 14 indicated by a two-dot chain line).

  Thus, a plurality of caulking portions 14 are formed (the first wall portion 11 and the second wall portion 12 are left without being caulked), whereby the first wall portion 11 and the second wall portion are formed. It is possible to change the shape of the twelve shapes (so that the shape does not become the same along the circumferential direction). Therefore, the base member 10 can hook the first fitting portion 21 and the second fitting portion 22 of the sliding member 20 on the caulking portion 14 even when the sliding member 20 is about to shift in the circumferential direction. It is possible to restrict the sliding member 20 from being detached from the base member 10. Moreover, the part which controls the shift | offset | difference of the circumferential direction with respect to the base member 10 of the sliding member 20 can be formed easily.

  As shown in FIG. 1, after the caulking process is performed, the adjusting process is performed in the method for manufacturing the washer 1 (step S40). The adjustment process is a process of adjusting the thickness of the sliding member 20. In the adjustment step, as shown in FIG. 6C, the sliding member 20 is pressed from above and crushed so as to spread in the radial direction of the base member 10. Accordingly, the sliding member 20 is adjusted so that the thickness of the washer 1 is uniform. At this time, the sliding portion 23 is formed to be further flat.

  As shown in FIG. 1, after performing the adjustment process, in the manufacturing method of the washer 1, a groove forming process is performed (step S50). The groove forming step is a step of forming a groove in the sliding member 20. In the groove forming step, the left front part and the right front part of the sliding part 23 are pressed from above. Thereby, the left front part and the right front part of the sliding member 20 are formed so that the thickness becomes thinner than the thickness of another part. The left front part and the right front part of the sliding member 20 are formed as a groove part 24 (see FIG. 7A). The groove portion 24 is formed to extend in the radial direction from the radially inner end portion of the sliding portion 23 to the radially outer end portion.

  This completes the manufacture of the washer 1 shown in FIG.

  The washer 1 manufactured as described above includes a base member 10 and a sliding member 20 as shown in FIG. One such washer 1 is abutted against the circumferential end of another washer 1. The one washer 1 is joined to another washer 1 by appropriate means such as laser welding. The joined washer 1 is provided on an appropriate member (for example, a housing or the like that supports the shaft member). In this state, the washer 1 can receive a load (for example, an axial load from the shaft member). Further, the sliding portion 23 of the washer 1 can slide with respect to the shaft member. Lubricating oil is supplied to the groove 24 of the washer 1 from a predetermined lubricating oil passage. The lubricating oil flows along the shape of the groove 24 and a part of the lubricating oil is held by the washer 1.

  By using the manufacturing method of the washer 1 according to the present embodiment, without using blanking, which is a process of punching a plate-like member (just by appropriately deforming the first longitudinal member 30 and the second longitudinal member 40). The washer 1 having different materials at the upper part and the lower part can be manufactured. Therefore, according to the manufacturing method of the washer 1, the material required for manufacturing the washer 1 can be used without waste, and the material yield can be improved (see FIG. 9).

  In addition, according to the method for manufacturing the washer 1, the washer 1 can be manufactured without using an expensive bimetal material obtained by sintering a metal having high wear resistance on the surface, thereby effectively reducing the manufacturing cost. can do.

  Further, according to the method for manufacturing the washer 1, the washer 1 is easily manufactured because the caulking portion 14 is formed so that the base member 10 and the sliding member 20 are not easily detached (not easily displaced in the circumferential direction and the vertical direction). Can do.

  Moreover, according to the manufacturing method of the washer 1, the first fitting portion 21 and the second fitting portion 22 are formed such that the sliding member 20 is crushed and conforms to the shape of the inner surface of the first wall portion 11. By forming the washer 1, the base member 10 and the sliding member 20 are not easily detached. In particular, as in the present embodiment, the base member 10 and the sliding member 20 are more formed by forming the first wall portion 11 and the second wall portion 12 of the base member 10 to be tapered. The washer 1 that is difficult to come off can be manufactured.

  Moreover, according to the manufacturing method of the washer 1, the thickness of the washer 1 can be made uniform by pressing the sliding member 20 attached to the base member 10 and adjusting the thickness. Further, as in the present embodiment, when the thickness of the sliding member 20 is adjusted, the surface that slides with respect to other members (sliding portion 23) is flattened, so that it is difficult to wear. 1 can be manufactured.

  In addition, according to the method for manufacturing the washer 1, the sliding member 20 can be easily deformed by processing the sliding member 20 formed in a substantially cylindrical shape. Can be easily manufactured. In particular, as in the present embodiment, the member (sliding member 20) disposed between the first wall portion 11 and the second wall portion 12 is formed in a substantially cylindrical shape, so that the sliding member 20 is formed. However, it becomes easy to be crushed along shapes, such as the inner surface of the 1st wall part 11. FIG. Therefore, the washer 1 can be manufactured more easily by the method for manufacturing the washer 1.

  As described above, in the method for manufacturing the washer 1 according to the present embodiment, by bending the first longitudinal member 30 (longitudinal member), the base member 10 (formed in an arc shape when viewed from above (one direction)) ( The first member) and the second longitudinal member 40 (longitudinal member) made of a material different from that of the base member 10 to bend the sliding member 20 formed in an arc shape when viewed from above. A preparation step of preparing (second member), and an attachment step of attaching the base member 10 and the sliding member 20 by arranging the base member 10 and the sliding member 20 side by side along the upper direction. And.

  By comprising in this way, a material yield can be improved.

  Further, the attaching step includes a caulking step in which at least one of the base member 10 and the sliding member 20 is caulked with respect to the other.

  By comprising in this way, it can suppress easily that the base member 10 and the sliding member 20 remove | deviate.

  In the preparation step, the base member 10 including the first wall portion 11, the second wall portion 12 (dent) and the plate portion 13 on the upper side (the sliding member 20 side) is prepared, and the attachment In the process, the sliding member 20 is disposed inside the first wall portion 11, the second wall portion 12 and the plate portion 13, and the sliding wall member 20 is crushed to crush the first wall portion 11, It further includes a deformation step of plastically deforming along the shape of the second wall portion 12 and the plate portion 13.

  By comprising in this way, it can suppress that the base member 10 and the sliding member 20 remove | deviate.

  The method for manufacturing the washer 1 further includes an adjustment step of adjusting the thickness of at least one of the base member 10 and the sliding member 20 in a state where the base member 10 and the sliding member 20 are attached. To do.

  By comprising in this way, the thickness of the washer 1 can be adjusted arbitrarily.

  Further, the base member 10 and / or the sliding member 20 is formed from a columnar longitudinal member.

  By comprising in this way, the washer 1 can be manufactured easily.

  Further, the washer 1 according to the present embodiment includes a base member 10 formed in an arc shape when viewed from the upper direction (one direction) and a material different from the base member 10 and is viewed from the upper direction. And a sliding member 20 that is formed in an arc shape and is arranged side by side along the upward direction with respect to the base member 10 and attached to the base member 10.

  By comprising in this way, a material yield can be improved.

  Further, at least one of the base member 10 and the sliding member 20 is attached to the other by being caulked against the other.

  By comprising in this way, it can suppress easily that the base member 10 and the sliding member 20 remove | deviate.

The base member 10 according to this embodiment is an embodiment of the first member according to the present invention.
Moreover, the 1st wall part 11, the 2nd wall part 12, and the board part 13 which concern on this embodiment are one Embodiment of the hollow which concerns on this invention.
The sliding member 20 according to this embodiment is an embodiment of the second member according to the present invention.
Further, the upward direction in the present embodiment corresponds to one direction according to the present invention.

  The embodiment of the present invention has been described above, but the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

  For example, the shape of the washer according to the present invention may be an arc shape in plan view, and is not limited to a semicircular shape in plan view as in the present embodiment.

  Moreover, in the preparatory process which concerns on this embodiment, although the linear metal member (the 1st longitudinal member 30 and the 2nd longitudinal member 40) cut | disconnected by appropriate length shall be bent, it is based on this invention. The order of cutting and bending in the preparation step is not limited to this. That is, in the preparation step according to the present invention, the bent metal member may be cut after the metal member is bent.

  In the preparation process according to the present embodiment, the sliding member 20 is prepared after the base member 10 is prepared. However, the first member (base member 10) and the second member according to the present invention are prepared. The order in which (sliding member 20) is prepared is not limited to this. That is, in the preparation step according to the present invention, the first member may be prepared after the second member is prepared, or the first member and the second member may be prepared simultaneously.

  Moreover, in the preparatory process which concerns on this embodiment, after the 1st wall part 11, the 2nd wall part 12, and the board part 13 are formed, the 1st elongate member 30 is bent by planar view semicircle shape. However, the timing at which the depressions (the first wall portion 11, the second wall portion 12, and the plate portion 13) in the preparation process according to the present invention are formed is not limited to this. That is, the dent according to the present invention may be formed after the longitudinal member is bent, or may be formed (simultaneously) when the longitudinal member is bent.

  Moreover, in the manufacturing method of the washer 1 according to the present embodiment, the base member 10 is caulked and the sliding member 20 is crushed so that the base member 10 and the sliding member 20 are attached. In the washer manufacturing method according to the above, the means to which the first member (base member 10) and the second member (sliding member 20) are attached is not limited to this. That is, in the washer manufacturing method according to the present invention, the first member and the second member may be attached by an adhesive, ultrasonic bonding, or the like.

  In addition, although the base member 10 is caulked in the method for manufacturing the washer 1 according to the present embodiment, the member caulked in the caulking process according to the present invention is not limited to this. In the caulking process according to the present invention, the second member (sliding member 20) may be caulked against the first member (base member 10), and the first member and the second member are caulked, respectively. May be.

  In the present embodiment, the caulking portion 14 formed by caulking the first wall portion 11 and the caulking portion 14 formed by caulking the second wall portion 12 are the same in the circumferential direction of the base member 10. However, the present invention is not limited to this, and is shifted in the circumferential direction of the first member (base member 10), such as the caulking portion 14 of the washer 101 shown in FIG. It may be formed at a different position.

  Moreover, although the multiple crimping | crimped part 14 which concerns on this embodiment shall be formed in the base member 10, this invention is not limited to this, One is only a 1st member (base member 10). It may be formed.

  Moreover, the 1st wall part 11, the 2nd wall part 12, and the board part 13 which concern on this embodiment shall be formed so that it may extend from the circumferential direction one end part of the base member 10 to the circumferential direction other end part. However, the shape (planar shape) of the dent according to the present invention is not limited to this. That is, the recess according to the present invention may be formed in the middle in the circumferential direction of the first member (base member 10), and a plurality of depressions are formed at intervals in the circumferential direction (dotted points). Yes).

  Further, the shapes of the first wall portion 11, the second wall portion 12 and the plate portion 13 (the shape of the recess according to the present invention) are not limited to the tapered shape as in the present embodiment. The shape which does not carry out, for example, the shape which the part (the 1st wall part 11 and the 2nd wall part 12) which comprises the side wall of a hollow extends in parallel with respect to an up-down direction may be sufficient.

  Moreover, although the thickness of the sliding member 20 shall be adjusted in the adjustment process which concerns on this embodiment, the member whose thickness is adjusted in the adjustment process which concerns on this invention is not limited to this. That is, in the adjustment process according to the present invention, the first wall portion 11 and the second wall portion 12 forming the side wall of the hollow of the first member (base member 10) are crushed, so that the first The thickness of the member may be adjusted. Moreover, in the adjustment process which concerns on this invention, the thickness of both the 1st member and the 2nd member (sliding member 20) may be adjusted.

  Moreover, the shape of the first longitudinal member 30 and the second longitudinal member 40 is not limited to the present embodiment, and may be a substantially prismatic shape or the like.

  Moreover, although the groove part 24 was formed after the thickness of the sliding member 20 was adjusted in the manufacturing method of the washer 1 which concerns on this embodiment, the manufacturing method of the washer which concerns on this invention is limited to this Not. That is, in the method for manufacturing the washer according to the present invention, the adjustment of the thickness and the formation of the groove portion 24 may be performed simultaneously in the adjustment step in which the thickness of the second member (sliding member 20) is adjusted. In this case, in the adjustment step, the second member may be pressed by a mold in which the portion forming the groove 24 protrudes from the other portion.

1 Washer 10 Base member (first member)
14 Caulking portion 20 Sliding member (second member)
30 First longitudinal member (longitudinal member)
40 Second longitudinal member (longitudinal member)

Claims (5)

By bending the longitudinal member, the first member formed in an arc shape when viewed from one direction, and the longitudinal member formed of a material different from the first member, by bending the longitudinal member, viewed from the one direction. A preparation step of preparing a second member formed in an arc shape;
Mounting the first member and the second member side by side along the one direction, and attaching the first member and the second member;
Comprising
Washer manufacturing method. The attaching step includes
A caulking step for caulking at least one of the first member and the second member against the other;
The washer manufacturing method according to claim 1. In the preparation step,
Preparing the first member having a depression on the second member side;
The attaching step includes
Further comprising a deformation step of disposing the second member inside the depression and plastically deforming the second member by crushing the second member.
The washer manufacturing method according to claim 1 or 2. An adjustment step of adjusting the thickness of at least one of the first member and the second member in a state where the first member and the second member are attached;
The method for manufacturing a washer according to any one of claims 1 to 3. The first member and / or the second member are:
Formed from a cylindrical longitudinal member,
The method for manufacturing a washer according to any one of claims 1 to 4 .

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