JP5602960B1 - Joining jig, manufacturing method of joined body, and joined body - Google Patents

Abstract

A method of manufacturing a joining jig and a joined body capable of easily joining three or more joining members, or a joining member in which an insulating material or a sealing material is disposed on the surface of a metal material, and thereby The obtained joined body is provided.
A joining portion of a joining member 21 is placed between a die 11 and a punch 12 so as to be relatively moved so that the die 11 and the punch 12 approach each other and the joining portion 21 is pressed. Thus, the joining member 21 is joined. The die 11 movably inserts the inner member 11B into the through hole of the cylindrical outer frame 11A, and forms the recess 11C by moving the inner member 11B relative to the outer frame 11A. A gap 11D through which a fluid such as air can flow is provided between the outer frame 11A and the inner member 11B.
[Selection] Figure 1

Description

  The present invention relates to a joining jig for joining three or more joining members, or a joining member in which an insulating material or a sealing material is disposed on the surface of a metal material, a method for manufacturing a joined body, and a joined body.

  As a method of joining two metal joining members, for example, by stacking two metal joining members on a die provided with a recess, and locally pushing the joining member into the recess of the die by punching, What joins a joining member by plastically deforming is known (for example, refer to patent documents 1). This method is preferable because it is possible to join materials that are difficult to weld or dissimilar materials, and can improve recyclability, light weight, and environmental harmony while reducing costs.

JP 2009-90354 A

  However, this joining method has a problem that the peel strength of the joined body is weaker than that of welding or the like, and it is difficult to obtain sufficient joining strength when joining three or more metal joining members. Also, if you want to join a joining member whose surface is covered with an insulating material such as rubber, or if you join another joining member such as rubber between metal joining members, weld it. However, it is preferable to be able to join by this method, but there is a problem that even if the punch is stacked on the die and pushed by a punch, the joining member slips and it is difficult to join.

  The present invention has been made on the basis of such a problem, and it is possible to easily join three or more joining members or a joining member in which an insulating material or a sealing material is disposed on the surface of a metal material. It aims at providing the manufacturing method of a jig | tool and a conjugate | zygote, and the conjugate | zygote obtained by it.

  A joining jig according to the present invention includes a die having a recess and a punch arranged to face the die, and the joining parts of three or more joining members are arranged so as to overlap each other between the die and the punch. Alternatively, a joining portion of a joining member in which an insulating material or a sealing material is disposed on the surface of the metal material and the joining portion of one or more other joining members are arranged so as to be relatively close to each other so that the die and the punch are brought close to each other. By pressing the joint and moving it to form an extruded part with one surface protruding and the other surface depressed, and joining the joining member, the die comprising an outer frame, An inner member movably inserted into a through-hole provided in the outer frame, and a recess is formed by moving the inner member relative to the outer frame. A gap through which fluid can flow is provided between the materials and the inner member is punched. When pressing the bonding portion, in accordance with the relative movement of the punch relative to the outer frame, the relative moving direction of the punch, in which the relatively movable in respect to the outer frame.

  In the method of manufacturing a joined body according to the present invention, a punch is placed opposite to a die having a recess, and the joined portions of three or more joining members are placed between them, or insulated between the surfaces of the metal material therebetween. The joining portion of the joining member on which the material or the sealing material is disposed and the one or more joining members are arranged so as to overlap each other, and the die and the punch are relatively moved so as to approach each other to press the joining portion. By forming an extruded part with one surface protruding and the other surface recessed, the joining member is joined, and the die can move the inner member into a through hole provided in the outer frame. A recess is formed by inserting and moving the inner member relative to the outer frame. A gap through which fluid can flow is provided between the outer frame and the inner member, and the joint is pressed by a punch. When the punch moves relative to the outer frame, The relative moving direction, in which relatively moving the inner member relative to the outer frame.

  In the joined body of the present invention, a joined portion of three or more joining members is placed between a die having a recess and a punch placed opposite to the die, or on the surface of a metal material. The joining part of the joining member provided with the insulating material or the sealing material and the joining part of one or more other joining members are arranged so as to overlap each other, and are moved relatively so that the die and the punch come close to press the joining part. By doing so, an extruded part in which one surface protrudes and the other surface is depressed is formed, and a joined member is joined, which is obtained by the method for producing a joined body of the present invention. .

  According to the present invention, the inner member is movable with respect to the outer frame, a gap through which fluid can flow is provided between the outer frame and the inner member, and in accordance with the relative movement of the punch with respect to the outer frame, Since the inner member is moved relative to the outer frame in the relative movement direction of the punch, for example, compressed air accumulates at the corners of the concave portion of the die when the joint is pressed, It can suppress that thickness becomes thin or a crack generate | occur | produces in an extrusion part. Thereby, it is possible to easily and satisfactorily join three or more joining members, or a joining member in which an insulating material or a sealing material is disposed on the surface of a metal material.

  If the diameter of the punch, the diameter of the recess, and the total thickness of the joint have a predetermined relationship, the depth of the recess, the insertion depth of the punch, and the total thickness of the joint are predetermined. If the relationship is satisfied, a higher effect can be obtained.

It is a figure showing the structure of the joining jig which concerns on one embodiment of this invention. It is a figure showing the structural example of the joining member joined by the joining jig | tool shown in FIG. It is a figure showing the other structural example of the joining member joined by the joining jig | tool shown in FIG. It is a figure showing the manufacturing process of the conjugate | zygote using the joining jig shown in FIG. It is a figure showing the manufacturing process following the manufacturing process shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a configuration of a joining jig 10 according to the present embodiment. FIG. 1 (A) shows a state in which a punch 12 is arranged on a die 11, and FIG. 1 (B) shows a die 11. This shows a state in which the punch 12 is inserted into the recess 11A. 2 and 3 show a configuration example of the joining member 21 to be joined by the joining jig 10. The joining jig 10 includes a die 11 having a recess 11 </ b> A and a punch 12 disposed to face the die 11. For example, the bonding jig 10 is configured such that bonding portions of a plurality of bonding members 21 are arranged between the die 11 and the punch 12 so that the die 11 and the punch 12 are relatively moved so as to approach each other. The plurality of joining members 21 are joined by pressing the joining portion.

  Examples of the bonding member 21 include a metal bonding member 21A made of a metal material, but an insulating bonding member 21B made of an insulating material such as rubber or a sealing material, at least a part of the surface of the metal material, or at least one of them. An insulating coating joining member 21C having an insulating material such as rubber or a sealing material disposed on its surface can also be used.

  In particular, the joining jig 10 is preferably used when three or more joining members 21 are joined. For example, as shown in FIG. 2A, when three or more metal joining members 21A are joined, as shown in FIG. 2B, an insulating joining member 21B is interposed between a pair of metal joining members 21A. In some cases, the insulating bonding member 21B and the metal bonding member 21A are alternately bonded between the pair of metal bonding members 21A as shown in FIG. 2C. Can be mentioned. Especially, when at least 1 joining member 21 located inside 3 or more joining members 21 is insulating joining member 21B, it can use preferably.

  Moreover, this joining member 10 is preferably used also when, for example, the insulating coating joining member 21C and one or more other joining members 21 are joined. For example, as shown in FIG. 3 (A), when joining the metal joining member 21A and the insulation coating joining member 21C, or as shown in FIG. 3 (B), two insulation coating joining members 21C. In some cases, the metal bonding member 21A is sandwiched between the two, or as shown in FIGS. 3C and 3D, two or more insulating coating bonding members 21C are bonded.

  FIG. 3 (A) represents a case where the insulating coating joining member 21C in which the insulating material or the sealing material is disposed on one surface of the metal material is joined with the insulating material or the sealing material side inside. Show. FIG. 3B representatively shows a case where the metal bonding member 21A is sandwiched between two insulating coating bonding members 21C in which an insulating material or a sealing material is disposed on both surfaces of the metal material. . FIG. 3C shows an insulating coating joining member 21C in which an insulating material or a sealing material is disposed on both surfaces of a metal material, and an insulating coating in which an insulating material or a sealing material is disposed on one surface of the metal material. The joining member 21C is shown as a representative case where the metallic material and the insulating material or the sealing material are joined alternately. FIG. 3D represents a case where two insulating coating joining members 21C each having an insulating material or a sealing material disposed on one surface of a metal material are joined with the insulating material or the sealing material side facing each other. As shown.

  The die 11 has, for example, a cylindrical outer frame 11A, and an inner member 11B that is movably inserted into a through hole provided in the outer frame 11A. The inner member 11B is attached to the outer frame 11A. The concave portion 11C is formed by relatively moving the concave portion 11C. Further, when the inner member 11B presses the joint portion with the punch 12, the inner member 11B is relative to the outer frame 11A in the relative movement direction of the punch 12 in accordance with the relative movement of the punch 12 with respect to the outer frame 11A. It is configured to be movable.

  The outer peripheral shape of the inner member 11B is, for example, a columnar shape, and a gap 11D through which a fluid such as air can flow is provided between the outer frame 11A and the inner member 11B. This is because, for example, compressed air accumulates at the corners of the recess 11C when the joint is pressed, and the thickness of the extruded portion is reduced, or cracks are generated in the extruded portion. The size of the gap 11D is preferably 5 μm or more and 15 μm or less, for example. If it is too small, it is difficult to circulate a fluid such as air, and if it is too large, the position of the inner member 11B is liable to shift, causing cracks in the pressing portion. The gap 11D is preferably provided over the entire outer periphery of the inner member 11B, that is, over the entire area between the outer frame 11A and the inner member 11B. This is because the joint can be pressed more uniformly.

  For example, a protrusion 11E that protrudes in the direction facing the punch 12 is preferably formed at the center of the surface of the inner member 11B facing the punch 12, that is, the center of the bottom surface of the recess 11C. . The protrusion 11E has, for example, a truncated cone shape that is larger on the base end side (the side opposite to the punch 12) than on the tip end side (the punch 12 side). The depth of the concave portion 11C is configured such that, for example, the central portion is shallow and the outer edge portion is deepened like a donut. The punch 12 has, for example, a cylindrical shape having a diameter φ2 smaller than the diameter φ1 of the recess 11C.

  1/2 of the difference between the diameter φ1 of the recess 11C and the diameter φ2 of the punch 12 is in the range of 50% to 58% of the total thickness T of the bonded portion of the bonding member 21, that is, T × 0.5 ≦ ( It is preferable that φ1−φ2) /2≦T×0.58. The diameter φ2 of the punch 12 is preferably in the range of 3 to 4 times the total thickness T of the joined portion of the joining member 21, that is, T × 3 ≦ φ2 ≦ T × 4. This is because the joining member 21 can be favorably joined within these ranges.

  Further, the difference between the depth H1 of the recess 11C and the insertion depth H2 of the punch 12 with respect to the recess 11C is in the range of 40% to 47% of the total thickness T of the bonded portion of the bonding member 21, that is, T × 0. It is preferable that 4 ≦ H1−H2 ≦ T × 0.47. The insertion depth H2 of the punch 12 with respect to the recess 11C is preferably in the range of 20% to 22% of the total thickness T of the joint, that is, T × 0.2 ≦ H2 ≦ T × 0.22. This is because the joining member 21 can be joined more favorably within these ranges. The depth H1 of the recess 11C is the depth at the outer edge of the recess 11C, and is the maximum depth when the joint is pressed with the punch 12. Further, the insertion depth H2 of the punch 12 with respect to the recess 11C is the maximum depth when the joint is pressed.

  4 and 5 show a method for manufacturing a joined body according to the present embodiment. In addition, the manufacturing method of the joined body which concerns on this Embodiment joins the joining member 21 using the joining jig | tool 10 mentioned above, and the joined body 20 which concerns on this Embodiment is obtained by this manufacturing method. It is what was done.

  In the method for manufacturing a joined body according to the present embodiment, first, for example, as shown in FIG. 4A, the die 11 and the punch 12 are arranged to face each other. The inner member 11B of the die 11 is moved toward the punch 12. Next, the joint portions of three or more joining members 21 are overlapped between the die 11 and the punch 12, or the joint portions of the insulating coating joining member 21C and one or more other joining members 21 are overlapped. Deploy. It is preferable that the diameter φ1 of the recess 11C and the diameter φ2 of the punch 12 have the above-described relationship with the total thickness T of the joint.

  Subsequently, for example, as shown in FIG. 4B, the punch 12 is pushed toward the die 11, so that the die 11 and the punch 12 are relatively moved so as to approach each other. After that, for example, as shown in FIG. 5, the punch 12 with respect to the outer frame 11A is moved while the punch 12 is moved relative to the outer frame 11A so as to press the joined portion of the joining member 21 with the punch 12. The inner member 11B is moved relative to the outer frame 11A in the relative movement direction of the punch 12 in accordance with the relative movement. That is, the joint portion is sandwiched between the inner member 11B and the punch 12, and the inner member 11B and the punch 12 are moved relative to the outer frame 11A in a direction in which the punch 12 is pushed into the recess 11C.

  Thus, since the inner member 11B is moved, the amount of air between the inner member 11B and the joint portion can be reduced, and the amount of air accumulated in the recess 11C can be reduced. Further, the air existing between the inner member 11B and the joint is discharged from the gap 11D between the inner member 11B and the outer frame 11A in accordance with the pressing of the joint. Therefore, the amount of air that accumulates in the recess 11C can be further reduced. Thereby, one surface of the joint is protruded, and an extruded portion in which the other surface is depressed is formed, and the joint member 21 is joined to form the joined body 20. It is preferable that the depth H1 of the recess 11C and the insertion depth H2 of the punch 12 with respect to the recess 11A have the above-described relationship with the total thickness T of the joint.

  Thus, according to the present embodiment, the inner member 11B can be moved with respect to the outer frame 11A, the gap 11D through which fluid can flow is provided between the outer frame 11A and the inner member 11B, and the outer frame 11A. The inner member 11B is moved relative to the outer frame 11A in the relative movement direction of the punch 12 in accordance with the relative movement of the punch 12 relative to the outer frame 11A. For example, it can be suppressed that compressed air accumulates at the corner of the concave portion 11 </ b> C of the die 11, and the thickness of the extruded portion is reduced or cracks are generated in the extruded portion. Thereby, the 3 or more joining members 21 or the insulation coating joining member 21C can be joined easily and satisfactorily.

  Further, if the diameter φ1 of the recess 11A, the diameter φ2 of the punch 12 and the total thickness T of the joint have a predetermined relationship, or the depth H1 of the recess 11A and the punch 12 relative to the recess 11A, If the insertion depth H2 and the total thickness T of the joint portion have a predetermined relationship, it is possible to perform better joining.

Example 1
As described above, the die 11 and the punch 12 shown in FIG. 1 are used, and the punch 12 and the inner member 11B are moved relative to the outer frame 11A so as to be disposed between the die 11 and the punch 12. The plate-shaped joining members 21 were joined. As the joining member 21, two insulating coating joining members 21C in which rubber insulating materials are disposed on both surfaces of a metal material and one metal joining member 21A are prepared, and the two insulating coating joining members 21C are provided. The metal joining member 21A was sandwiched and joined. The thickness of the insulating covering bonding member 21C is 0.3 mm, the thickness of the metal bonding member 21A is 0.2 mm, and the total thickness T of the bonding portion is 0.8 mm.

  Further, the diameter φ1 of the recess 11C of the die 11 is 3.3 mm, the diameter φ2 of the punch 12 is 2.4 mm, the depth H1 of the recess 11C is 0.5 mm, and the insertion depth H2 of the punch 12 into the recess 11C is 0.17 mm. It was. A protrusion 11E is provided at the center of the surface of the inner member 11B facing the punch 12, that is, the center of the bottom surface of the recess 11C, and the entire area between the outer frame 11A and the inner member 11B is 5 μm. A gap 11D of about 15 μm was formed. As a result, the joining member 21 was able to be favorably joined.

(Comparative Example 1)
As Comparative Example 1 with respect to Example 1, Example 1 is used except that the inner member is not provided and a die in which a concave portion is formed on the columnar base so as to have the same shape as Example 1 is used. In the same manner, the joining member 21 was joined. The diameter of the recess was 3.3 mm, the depth of the recess was 0.5 mm, and the same protrusion as in Example 1 was provided at the center of the bottom surface of the recess. As a result, the thickness of the joint was thinner than that of Example 1, and the peel strength was weaker than that of Example 1.

  That is, as shown in the first embodiment, the punch 12 and the inner member 11B are moved relative to the outer frame 11A, and a gap 11D is provided between the outer frame 11A and the inner member 11B. It was found that good bonding can be achieved.

  The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made.

  It can be used for joining three or more joining members, or joining members in which an insulating material or a sealing material is provided on the surface of a metal material.

  DESCRIPTION OF SYMBOLS 11 ... Die, 11A ... Outer frame, 11B ... Inner member, 11C ... Recess, 11D ... Gap, 11E ... Projection, 12 ... Punch, 20 ... Joined body, 21 ... Joining member, 21A ... Metal joining member, 21B ... Insulation Joining member, 21C: insulation coating joining member, φ1: diameter of recess, φ2: diameter of punch, T: total thickness of joint, H1: depth of recess, H2: insertion depth of punch into recess

Claims (6)

A die having a recess, and a punch disposed opposite the die,
Between the die and the punch, by overlapping the junction of three or more joint members are arranged, by pressing the bonding portion is relatively moved so as to approach and said and said die punch , A joining jig for joining the joining member by forming an extruded portion in which one surface protrudes and the other surface is depressed,
When the three or more joining members are joined by sandwiching an insulating joining member made of rubber between a pair of metal joining members made of a metal material, or between a metal joining member made of a pair of metal materials, rubber It is used when joining by sandwiching alternately the insulating joining member made of and the metal joining member made of a metal material,
The die has an outer frame and an inner member inserted so as to be movable with respect to a through-hole provided in the outer frame, and the inner member is moved relative to the outer frame to move the die. A recess is formed,
Between the outer frame and the inner member is provided a gap through which fluid can flow,
The size of the gap is not less than 5 μm and not more than 15 μm,
The inner member is relative to the outer frame in the relative movement direction of the punch in accordance with the relative movement of the punch with respect to the outer frame when the joint is pressed by the punch. Is configured to be movable ,
The diameter of the punch is in the range of 3 to 4 times the total thickness of the joint,
1/2 of the difference between the diameter of the recess and the diameter of the punch is in the range of 50% to 58% of the total thickness of the joint,
The difference between the depth of the recess and the depth of insertion of the punch into the recess is in the range of 40% to 47% of the total thickness of the joints,
The joining jig characterized in that the insertion depth of the punch into the recess is in the range of 20% to 22% of the total thickness of the joint. A die having a recess, and a punch disposed opposite the die,
By placing the joints of a plurality of joining members in an overlapping manner between the die and the punch, and relatively moving the die and the punch closer together to press the joints, A joining jig that joins the joining member by forming an extruded portion with one surface protruding and the other surface depressed.
The plurality of joining members are used when joining an insulating coating joining member in which rubber is disposed on the surface of a metal material and one or more other joining members,
The die has an outer frame and an inner member inserted so as to be movable with respect to a through-hole provided in the outer frame, and the inner member is moved relative to the outer frame to move the die. A recess is formed,
Between the outer frame and the inner member is provided a gap through which fluid can flow,
The size of the gap is not less than 5 μm and not more than 15 μm,
The inner member is relative to the outer frame in the relative movement direction of the punch in accordance with the relative movement of the punch with respect to the outer frame when the joint is pressed by the punch. Is configured to be movable ,
The diameter of the punch is in the range of 3 to 4 times the total thickness of the joint,
1/2 of the difference between the diameter of the recess and the diameter of the punch is in the range of 50% to 58% of the total thickness of the joint,
The difference between the depth of the recess and the depth of insertion of the punch into the recess is in the range of 40% to 47% of the total thickness of the joints,
The joining jig characterized in that the insertion depth of the punch into the recess is in the range of 20% to 22% of the total thickness of the joint.

A punch is disposed opposite to a die having a concave portion, and a joint portion of three or more joining members is disposed therebetween, and the die and the punch are relatively moved so as to approach each other. Is a method of manufacturing a joined body that joins the joining member by forming an extruded portion in which one surface protrudes and the other surface is depressed.
As the three or more joining members, an insulating joining member made of rubber is sandwiched between a pair of metal joining members made of a metal material, or an insulating joining made of rubber between a metal joining member made of a pair of metal materials Alternately sandwiching members and metal joints made of metal materials,
The die is movably inserted into a through-hole provided in the outer frame, and the inner member is moved relative to the outer frame to form the recess,
Between the outer frame and the inner member, a gap through which fluid can flow is provided,
The size of the gap is not less than 5 μm and not more than 15 μm,
When pressing the joint by the punch, the inner member is moved relative to the outer frame in the relative movement direction of the punch in accordance with the relative movement of the punch with respect to the outer frame. Move
The diameter of the punch is in the range of 3 to 4 times the total thickness of the joint,
1/2 of the difference between the diameter of the recess and the diameter of the punch is in the range of 50% to 58% of the total thickness of the joint,
The difference between the depth of the recess and the depth of insertion of the punch into the recess is in the range of 40% to 47% of the total thickness of the joint,
The method for manufacturing a joined body , wherein an insertion depth of the punch into the concave portion is in a range of 20% to 22% of a total thickness of the joint portion . A punch is disposed opposite to a die having a recess, a plurality of bonding members are overlapped therebetween, and the die and the punch are relatively moved so as to approach each other. A method of manufacturing a joined body for joining the joining member by forming an extruded portion in which one surface protrudes by pressing and the other surface is depressed,
As the plurality of bonding members, an insulating covering bonding member in which rubber is disposed on the surface of a metal material and one or more other bonding members are overlapped,
The die is movably inserted into a through-hole provided in the outer frame, and the inner member is moved relative to the outer frame to form the recess,
Between the outer frame and the inner member, a gap through which fluid can flow is provided,
The size of the gap is not less than 5 μm and not more than 15 μm,
When pressing the joint by the punch, the inner member is moved relative to the outer frame in the relative movement direction of the punch in accordance with the relative movement of the punch with respect to the outer frame. Move
The diameter of the punch is in the range of 3 to 4 times the total thickness of the joint,
1/2 of the difference between the diameter of the recess and the diameter of the punch is in the range of 50% to 58% of the total thickness of the joint,
The difference between the depth of the recess and the depth of insertion of the punch into the recess is in the range of 40% to 47% of the total thickness of the joint,
The method for manufacturing a joined body , wherein an insertion depth of the punch into the concave portion is in a range of 20% to 22% of a total thickness of the joint portion .

A die having a recess, between the oppositely disposed punched the die, by overlapping the junction of three or more joint members are arranged, relative to said die and said punch approaches By moving and pressing the joined portion, one surface is protruded, the other surface is depressed to form an extruded portion, and the joined member is joined,
A joined body obtained by the method for producing a joined body according to claim 3 . Between the die having the recess and the punch arranged opposite to the die, the joining portions of a plurality of joining members are arranged so as to move relatively so that the die and the punch come close to each other. By pressing the joint part, one side is protruded, the other surface is depressed to form an extruded part, and the joined member is joined,
A joined body obtained by the method for producing a joined body according to claim 4 .

Images