JP4821996B2 - Vibration welding component holding device, vibration welding device, and method of manufacturing vibration welding product - Google Patents

Description

  The present invention relates to a vibration welding apparatus and a method for manufacturing a vibration welded product, and in particular, a vibration welding apparatus that performs vibration welding in a state where three or more parts are at least partially overlapped, and a component holding used in the vibration welding apparatus. The present invention relates to an apparatus and a method for manufacturing a vibration welded product formed by vibration welding three or more components that are superimposed.

  Vibration welding is a technique in which frictional heat is generated on a joint surface by relatively pressing and vibrating two parts, and the parts are welded by locally melting the joint surface. Vibration welding is suitable for joining large parts and parts having complicated shapes, and is used for joining plastic parts in various fields such as automobiles, home appliances, OA equipment and medical equipment.

  A vibration welding apparatus used for vibration welding usually has a vibration generator and a lifting table arranged to face the vibration generator. A first jig for holding one of the two parts to be joined is attached to the vibration generator. The lifting table is provided so as to be able to approach and separate from the vibration generator. A second jig for holding the other of the two parts to be joined is attached to the lifting table.

  In order to vibration weld the two parts, the parts are first held by the first jig and the second jig, respectively, and the lifting table is driven to bring the joint surfaces of the two parts into contact with each other under pressure. In this state, the two parts are relatively vibrated by the vibration generator, whereby the two parts are welded.

Some products are manufactured by welding not only two parts but also three or more parts in a stacked state. Also in this case, the first part and the second part are first held and welded to the jigs, respectively, and then the assembly in which the first part and the second part are welded is combined with the third part. Welding is performed by repeating the above procedure such that each is held by a jig and welded (see Patent Document 1). Patent Document 2 discloses that the three parts are welded simultaneously by vibrating the middle part in a state where the three parts are pressed in a sandwich shape.
JP 2005-319613 A JP 2005-297273 A

  When three or more parts are joined by vibration welding, the above-described conventional technique has the following problems.

  In the method of repeating welding one group at a time as disclosed in Patent Document 1, it is necessary to reassemble parts and jigs for each welding. Therefore, the product production efficiency was not so good. Further, since the same number of jigs as the number of parts are required, the management of the jigs is complicated.

  Since the technique disclosed in Patent Document 2 can weld three parts at the same time, the three parts can be welded efficiently. However, since this technique needs to hold a plurality of parts individually so that they can be pressed against each other, it is difficult to apply this technique to welding four or more parts. Even if it can be applied, it is necessary to vibrate a plurality of parts in order to weld four or more parts at the same time. Therefore, in addition to a mechanism for pressurizing each part, a plurality of vibrations generated by a vibration generator are used. A mechanism for transmitting to the other parts is also required. As a result, the configuration of the jig itself or the entire apparatus becomes complicated.

  An object of the present invention is to enable vibration welding of three or more parts with an extremely simple configuration and efficiency.

  In order to achieve the above object, a component holding device of the present invention is a component holding device used for manufacturing a vibration welded product having a welded portion in which three or more components are stacked and integrated. 1 jig | tool, a 2nd jig | tool, and a holding mechanism. A 1st jig | tool hold | maintains one component arrange | positioned in the outermost layer among the components welded. The second jig is opposed to the first jig in order to press the remaining parts that are not held by the first jig among the parts to be welded together with the parts held by the first jig. Be placed. The holding mechanism holds an arbitrary number of parts from the second jig side among the remaining parts so as to be fixed to the second jig.

  The vibration welding apparatus of the present invention is a vibration welding apparatus that manufactures a vibration welded product having a welded portion in which three or more parts are stacked and integrated, and includes a vibration generator that generates vibration, and vibration generation And a table that is disposed to face the vibration generator in a direction orthogonal to the vibration direction generated by the machine and moves relative to the vibration generator in a direction opposite to the vibration generator. The vibration welding apparatus of the present invention has the same first jig, second jig, and holding mechanism as the above-described component holding apparatus of the present invention. The first jig is attached to either the vibration generator or the table. The second jig is attached to the other of the vibration generator and the table so as to face the first jig.

  In the present invention configured as described above, all the parts to be welded are overlapped with each other and sandwiched between the first jig and the second jig. The holding mechanism first holds all the remaining parts not held by the first jig so as to be fixed to the second jig. By relatively vibrating the first jig and the second jig in this state, the parts held by the first jig and the parts adjacent thereto are vibration welded. Next, the number of parts held by the holding mechanism is reduced by one, and the next part is similarly vibration welded. By repeating this operation up to the last part, three or more parts are vibration welded without changing the jig and the parts.

  The method for manufacturing a vibration welded product according to the present invention is a method for manufacturing a vibration welded product having a welded portion in which three or more components are overlapped and integrated, and the three or more components are overlapped and added. The step of pressing, the step of sequentially repeating vibration welding of two adjacent components from the component side arranged on the outermost layer in a state where three or more components are pressed, and vibration for all components After welding, releasing the pressure of the parts.

  In the method for manufacturing a vibration welded product according to the present invention, the step of performing vibration welding is a state in which all the parts except the parts arranged on the outermost layer are held, and these held parts are arranged together on the outermost layer. The first welding step for vibration welding the component arranged on the outermost layer and the component adjacent thereto by vibrating relative to the component, and holding the welded component after the first welding step At least one second welding step of vibrating and welding the welded part and a part adjacent thereto by causing the remaining parts to be released and relatively vibrated with the welded parts; It is preferable to have.

  According to the present invention, all components can be vibration welded while three or more components to be welded are superposed and pressurized. As a result, vibration welding of three or more parts can be performed efficiently. Moreover, the mechanism newly added to realize such vibration welding is that any number of parts from the second jig side among the remaining parts not held by the first jig are attached to the second jig. Since only a holding mechanism for holding the parts fixed is required, the structure of the component holding device or the vibration welding device is very simple.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a main part of a vibration welding apparatus according to an embodiment of the present invention together with parts to be welded.

  A vibration welding apparatus 10 illustrated in FIG. 1 includes a vibration generator 11 and a table 12 disposed to face the vibration generator 11. In this embodiment, the table 12 is located below the vibration generator 11.

  The vibration generator 11 reciprocally vibrates in a plane orthogonal to the direction facing the table 12 using, for example, a repulsive force between a spring and an electromagnetic coil. Alternatively, there is a vibration generator configured to move elliptically in a certain direction. In any case, generally, the vibration frequency is appropriately set within a range of 100 to 250 Hz and the amplitude within a range of 5 mm or less.

  The table 12 is supported so as to be movable toward and away from the vibration generator 11, and is moved in this direction by a drive mechanism (not shown). For example, a hydraulic cylinder or a ball screw mechanism can be used as the drive mechanism.

  The vibration generator 11 and the table 12 can be the same as those used in the conventional vibration welding apparatus. Moreover, although the example in which the table 12 is driven by the drive mechanism is shown here, the drive mechanism may be provided on the vibration generator 11 side. In this case, the vibration generator 11 moves in the direction approaching and separating from the table 12 in addition to vibrating as described above.

  A first jig 13 is detachably attached to the vibration generator 11. A second jig 14 is detachably attached to the table 12 at a position facing the first jig 13 attached to the vibration generator 11. The first component 101, the second component 102, and the third component 103 that are welded by the vibration welding apparatus 10 are held in a state of being overlapped by the first jig 13 and the second jig 14.

  In the first component 101 to the third component 103, the third component 103, the second component 102, and the first component 101 are superposed in this order from the table 12 side. In FIG. 1, the first component 101 to the third component 103 are shown in a flat plate shape, but this merely shows a portion to be welded, and the whole need not be a flat plate shape. The parts of the first part 101 to the third part 103 shown in the figure may be, for example, those flange parts.

  As a material of the first component 101 to the third component 103, any material can be used as long as it is a thermoplastic resin that can be bonded by vibration welding. For example, when manufacturing an intake manifold for an automobile, polyamide 6, polyamide 66, or the like can be preferably used.

  On the surface of the first jig 13 that faces the second jig 14, a recess 13 a corresponding to the planar shape of the first part 101 that is the part located closest to the first jig 13 is formed. The first component 101 is held by the first jig 13 by being fitted into the recess 13a.

  The second jig 14 is provided with a convex portion on the surface facing the first jig 13 so that the third component 103 can be supported in an appropriate posture and a necessary pressure can be applied at the time of welding. ing. The second jig 14 is formed with a through hole 14 a penetrating the second jig 14 in a direction facing the first jig 13. A movable pin 15 is slidably inserted into each through hole 14a. The movable pin 15 is moved by a pin driving mechanism (not shown) so as to protrude from the surface of the second jig 14 facing the first jig 13 toward the first jig 13.

  On the other hand, the second component 102 and the third component 103 have the second component 102 and the third component 103 in positions corresponding to the movable pins 15 in a state where the second component 102 and the third component 103 are appropriately supported by the second jig 14. A plurality of through-holes 102a and 103a are formed to penetrate 102 and the third component in the direction in which the movable pin 15 moves. That is, each through hole 102a of the second component 102, each through hole 103a of the third component 103, and each through hole 14a of the second jig 14 are arranged so that the second component 102 and the third component 103 are on the second jig 14. When properly supported, it is aligned. The through-holes 102a and 103a are formed so that the size of the through-holes 102a and 103a is “clear fit” with the movable pins 15 so that the movable pins 15 can smoothly slide in the through-holes 102a and 103a. It is preferable.

  Next, the welding procedure of three components by the vibration welding apparatus 10 of this embodiment will be described.

  First, the table 12 is placed in the state farthest from the vibration generator 11. In this state, as shown in FIG. 2, the third component 103 and the second component 102 are supported on the second jig 14, and the movable pin 15 protrudes toward the first jig 13, thereby The component 102 is penetrated, and the tip is positioned in the through hole 103 a of the second component 103. Thereby, the second component 102 and the third component 103 are held so that the second jig 14 is fixed by the movable pin 15.

  The protrusion of the movable pin 15 may be performed before or after the second component 102 and the third component 103 are supported on the second jig 14. If the movable pin 15 is projected in advance, the second component 102 and the third component 103 can be easily positioned. Further, in a state where the movable pin 15 holds the second component 102 and the third component 103, it is preferable that the movable pin 15 is not in contact with the first component 101 and the first jig 13 when the first component 101 is welded. The leading end is located in the through hole 102 a of the second member 102.

  On the other hand, the first component 101 is held in the first jig 13 by fitting the first component 101 into the recess 13a.

  When the first part 101 is held by the first jig 13 and the second part 102 and the third part 103 are held by the second jig 14, the table 12 is moved to the vibration generator 11 side, and the first part 101 is moved. The part 101 and the second part 102 are pressed. In this state, the vibration generator 11 is driven to vibrate the first component 101 held by the first jig 13 in a plane parallel to the pressing surfaces of the first component 101 and the second component 102.

  Since the second component 102 and the third component 103 are fixed by the movable pin 15, the second component 102 and the third component 103 are moved together with the first component 101 when the first component 101 vibrates. It vibrates relatively. As a result, frictional heat is generated in the first component 101 and the second component 102 in a region where they are pressurized with each other. The first component 101 and the second component 102 are locally melted by frictional heat, and both are welded.

  Thereafter, the operation of the vibration generator 11 is stopped, and the welded portion 104 between the first component 101 and the second component 102 is naturally cooled. Thereby, the welding part 104 of the 1st component 101 and the 2nd component 102 solidifies, and both are integrated.

  After joining the first component 101 and the second component 102, as shown in FIG. 3, the movable pin 15 is pulled in, and the movable pin 15 does not enter the through hole 102a of the second component 102, preferably the movable pin. The 15 tip portions are positioned in the through hole 103 a of the third component 103. As a result, the holding of the second component 102 by the movable pin 15 is released, and the movable pin 15 holds the third component 103 so that the third component 103 is fixed to the second jig 14.

  In this state, the vibration generator 11 is driven. Since the second component 101 and the first component 101 are welded to each other, the second component 102 vibrates integrally with the first component 101 by driving the vibration generator 11. Since the third component 103 is fixed by the movable pin 15, the second component 102 and the third component 103 are vibrated by virtue of the vibration of the second component 102, similarly to the welding of the first component 101 and the second component 102 described above. The part 103 is welded.

  Thereafter, the operation of the vibration generator 11 is stopped, and the welded portion 105 between the second component 102 and the third component 103 is naturally cooled. Thereby, the welding part 105 of the 2nd component 102 and the 3rd component 103 is solidified, and both are integrated.

  Next, as shown in FIG. 4, the table 12 is moved in a direction away from the vibration generator 11 to release the pressurized state of the first component 101, the second component 102, and the third component 103. Thereafter, the vibration welded product 106 formed by vibration welding and integrating the first component 101, the second component 102, and the third component 103 is connected to the first jig 13 and the second jig 14. Remove from between.

  In the above description, the case where three parts are welded is described as an example. However, according to the first jig 13 and the second jig 14 of the present embodiment, the welded portion has four or more layers. It is also possible to weld four or more superposed parts.

  In that case, the welding of the component held by the first jig 13 and the component adjacent thereto is performed in the same manner as described above. For subsequent welding, the operation performed in the above-described welding process of the second component 102 and the third component 103 is performed while the movable pin 15 is sequentially moved so that the holding of the welded component is released. The relative vibration between the parts held by the pins 15 and the parts already welded is repeated until the parts directly supported on the second jig 14 and the parts adjacent thereto are welded. Can be done.

  As described above, according to the present embodiment, by providing the movable pin 15, the second jig 14 is the second of the remaining parts excluding one part held by the first jig 13. It is possible to create a state in which an arbitrary number of parts are held with respect to the second jig 14 from the jig 14 side. In this way, all the components are first overlapped and arranged between the first jig 13 and the second jig 14, and then the remaining parts not held by the first jig 13 are held. The two adjacent parts can be welded sequentially from the side of the first jig 13 holding the outermost part part while reducing the number of the parts one by one.

  Therefore, only one set of the first jig 13 and the second jig 14 is used. In addition, the jig itself may be simply configured by adding a new movable pin 15 and a structure associated therewith to the second jig 14, and can have a very simple configuration. Further, during the above-described series of steps, it is not necessary to rearrange parts or jigs, so that it is possible to save the labor of rearrangement, and as a result, a vibration welded product can be manufactured efficiently.

  Next, another embodiment of the present invention will be described with reference to FIG.

  The vibration welding apparatus shown in FIG. 5 also has a vibration generator 11 and a table 12 as in the vibration welding apparatus shown in FIG. A first jig 13 is detachably attached to the vibration generator 11. A second jig 24 is detachably attached to the table 12 at a position facing the first jig 13. Among them, the vibration generator 11, the table 12, and the first jig 13 can be the same as those used in the above-described embodiment, and therefore, the same reference numerals as those in FIG. Description is omitted.

  The second jig 24 has a plurality of first through holes 24a and a plurality of second through holes 24b. A tapered first tapered movable pin 25a is inserted into each first through hole 24a so as to be movable in a direction in which the first jig 13 and the second jig 24 face each other. A second taper-shaped second movable pin 25b is also inserted into the second through hole 24b so as to be movable in a direction in which the first jig 13 and the second jig 24 face each other.

  The first movable pin 25a and the second movable pin 25b are moved by a pin drive mechanism (not shown) as in the above-described embodiment. The first movable pin 25a and the second movable pin 25b may have the same shape or different shapes.

  A plurality of first through holes 113 a and a plurality of second through holes 113 b are formed in the third component that is directly supported on the second jig 24. The first through hole 113a is formed at a position corresponding to the first movable pin 25a. The second through hole 113b is formed at a position corresponding to the second movable pin 25b.

  The first through hole 113a is formed in such a size that the tip of the first movable pin 25a can penetrate the third component 113 and protrude from the opposite surface. As long as it is formed in such a size, the 1st through-hole 113a may be a taper shape, and does not need to be a taper shape.

  The 2nd through-hole 113b is formed in the taper shape which has the same inclination as the taper shape of the 2nd movable pin 25b. However, the size of the second movable pin 25b that has entered the second through hole 113b of the third component 113 from the second jig 24 side cannot pass through the third component 113.

  A plurality of first through holes 112a are formed at positions corresponding to the first movable pins 25a in the second component 112 that is overlapped adjacent to the third component 113. The first through hole 112a is formed in a tapered shape having the same inclination as the tapered shape of the first movable pin 25a, and the size thereof is the first through hole 112a of the second component 112 from the second jig 24 side. The distal end portion of the first movable pin 25a that has entered the inside has a size that cannot pass through the second component 112.

  The vibration welding apparatus of the present embodiment is also basically the same as described in the above-described embodiment, with the first component 111 and the second component being held together with the second component 112 and the third component 113 first. The part 112 is welded, and then the second part 112 to which the first part 111 is welded is welded to the third part 113. However, in the present embodiment, the holding of the second component 112 and the third component 113 in each welding process is switched by changing the operation timing of the first movable pin 25a and the second movable pin 25b.

  Specifically, when welding the first component 111 and the second component 112, as shown in FIG. 6, the second movable pin 25b is not driven and only the first movable pin 25a is driven. Accordingly, the first movable pin 25a protrudes toward the first jig 13 side. The protruding first movable pin 25 a passes through the first through hole 113 a of the third component 113, and the distal end portion is positioned in the first through hole 112 a of the second component 112.

  Since the first through hole 112a of the second component 112 is formed in the size as described above, the second component 112 can be more reliably fixed by the first movable pin 25a. As a result, the displacement of the second component 112 due to the vibration of the first component 111 is prevented, and the frictional heat between the first component 111 and the second component 112 can be generated more effectively.

  Depending on the size of the first through hole 113 a of the third component 113, the third component 113 may move relative to the first movable pin 25. However, in the welding stage of the first component 111 and the second component 112, there is no problem in welding as long as at least the second component 112 is fixed on the second jig 24 side.

  Furthermore, when the second component 112 and the third component 113 are welded after the first component 111 and the second component 112 are welded, as shown in FIG. 7, the first movable pin 25a is moved to the original position, Alternatively, at least the second part 112 is returned to a position where it does not enter the first through hole 112a. Instead, the second movable pin 25b protrudes toward the first jig 13 and enters the second through hole 113b of the third component 113.

  Since the second through hole 113b of the third component 113 is formed in the size as described above, the third component 113 can be more reliably fixed by the second movable pin 25b. As a result, the displacement of the third component 113 due to the vibration of the first component 111 and the second component 112 is prevented, and the frictional heat between the second component 112 and the third component 113 is more effectively generated. Can do.

  When the welding of the first component 111 and the second component 112 and the welding of the second component 112 and the third component 113 are completed as described above, the table 12 is moved from the vibration generator 11 as shown in FIG. The vibration welding product 116 formed by moving the first component 111 to the third component 113 by vibration welding is taken out from between the first jig 11 and the second jig 24.

  According to the present embodiment, the accuracy of fixing the second component 112 and the third component 113 to the second jig 24 is improved, so that more reliable welding is possible.

  In the example shown in FIG. 5, the first movable pin 25 a and the second movable pin 25 b are shown as having a tapered shape as a whole, but the tapered shape is obtained when the movable pin is inserted into the through hole of the component. , Show the effect in the inserted part. Therefore, the movable pin does not need to be entirely tapered, and at least the portion inserted into the through hole of the component may be tapered.

  Further, in the present embodiment, the case where three parts are welded is described as an example, but if the second jig 24 of the present embodiment is applied, the welded portions are overlapped so as to have four or more layers. Four or more parts can be welded. In that case, the number of movable pins equal to the number of remaining parts not held by the first jig 13 is provided, and the remaining parts not held by the first jig 13 are provided with a predetermined number corresponding to each type of movable pin. A tapered tapered through hole is formed that can receive the movable pin up to the part. The “type” of the movable pin mentioned here means that the operation timing is different regardless of the shape and material.

  In addition, the welding operation of each part in this case is also different only in the movable pin that holds the part in each welding process, and the welding of each part is released while releasing the held part every time the part welding is completed. This is performed in the same manner as in the above-described embodiment.

  Next, still another embodiment of the present invention will be described with reference to FIG.

  The vibration welding apparatus shown in FIG. 9 is different from the vibration welding apparatus shown in FIG. 1 in the position of the movable pin 35 provided on the second jig 34. Since the first jig 13 attached to the vibration generator 11, the table 12, and the vibration generator 22 is the same as that shown in FIG. 1, the same reference numerals as those in FIG. Description is omitted.

  In the present embodiment, when the plurality of movable pins 35 protrude from the surface of the second jig 34 facing the first jig 13, the second pin 122 and the third part 123 are in contact with the side surfaces of the second part 122 and the third part 123. The first component 121 to the third component 123 are provided so as to be movable in the overlapping direction.

  By disposing the movable pin 35 in this manner, the movable pin 35 can hold the side surfaces of the second component 122 and the third component 123. As a result, the same procedure as in the embodiment shown in FIG. 1 can be performed, and the first component 121 to the third component 123 can be sequentially welded while moving the movable pin 35 stepwise. Four or more parts can be welded in the same manner as described in the example shown in FIG.

  As described above, the present embodiment holds the side surfaces of the remaining parts that are not held by the first jig 13. Therefore, this embodiment is suitable when the plane dimensions of the side surfaces of these components are equal to each other in the portion held by the movable pin 35. In the present embodiment, it is not necessary to form a through hole in each component.

  The present invention has been described above with some typical examples, but the present invention is not limited to these embodiments.

  For example, in each of the above-described embodiments, the case where the movable member that holds the component is a pin is illustrated, but the movable member may be plate-shaped. Alternatively, a screw member that moves forward and backward while rotating can also be used as the movable member. In this case, if each through hole formed in each component is a screw hole into which this screw member is screwed, each component can be more firmly held with respect to the second jig.

  Moreover, although each embodiment mentioned above showed the example which attached the 1st jig | tool to the vibration generator and attached the 2nd jig | tool to the table, these attachments may be reverse.

  Furthermore, although the movable member has been described as a part of the configuration of the jig, it may be provided as a part of the configuration of the vibration generator or the table.

It is sectional drawing which shows the principal part of the vibration welding apparatus by one Embodiment of this invention with the components to weld. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 1, and has shown the welding process of a 1st component and a 2nd component. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 1, and has shown the welding process of 2nd components and 3rd components. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 1, and has shown the state which the welding of three components was complete | finished. It is sectional drawing which shows the principal part of the vibration welding apparatus by other embodiment of this invention with the components to weld. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 5, and has shown the welding process of a 1st component and a 2nd component. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 5, and has shown the welding process of 2nd components and 3rd components. It is sectional drawing for demonstrating the welding procedure by the vibration welding apparatus shown in FIG. 5, and has shown the state which the welding of three components was complete | finished. It is sectional drawing which shows the principal part of the vibration welding apparatus by further another embodiment of this invention with the components to weld.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vibration welding apparatus 11 Vibration generator 12 Table 13 1st jig | tool 14,24,34 2nd jig | tool 15,25a, 25b, 35 Movable pin 101,111,121 1st part 102,112,113 2nd part 103 , 102, 103 Third part

Claims (10)

A component holding device used to manufacture a vibration welded product having a welded portion in which three or more components are stacked and integrated,
A first jig for holding one component arranged on the outermost layer among the components;
Arrangement facing the first jig for pressing the remaining parts that are not held by the first jig among the three or more parts so as to overlap the parts held by the first jig. A second jig,
A holding mechanism that holds an arbitrary number of parts from the second jig side among the remaining parts so as to be fixed to the second jig;
A component holding device. The holding mechanism has a movable member protruding from the second jig toward the first jig,
2. The component holding device according to claim 1, wherein a through-hole through which the movable member penetrates is formed at a position corresponding to the movable member in the remaining components that are not held by the first jig. The holding mechanism is driven at different operation timings so as to protrude from the second jig toward the first jig of the same type as the number of remaining parts not held by the first jig. At least the tip has a movable member that is tapered and tapered,
The remaining parts not held by the first jig have tapered tapered through holes that can receive the movable members up to predetermined parts corresponding to the respective types of movable members. The component holding device according to claim 1, wherein the component holding device is formed at a position to be moved.   The component holding apparatus according to claim 1, wherein the holding mechanism includes a movable member disposed at a position for holding a side surface of the remaining component that is not held by the first jig. A vibration welding apparatus for producing a vibration welded product having a welded portion in which three or more parts are overlapped and integrated,
A vibration generator that generates vibration;
A table that is disposed opposite to the vibration generator in a direction orthogonal to the vibration direction generated by the vibration generator, and moves relative to the vibration generator in a direction opposite to the vibration generator;
A first jig which is attached to one of the vibration generator and the table and holds one component arranged on the outermost layer among the components;
The other of the vibration generator and the table for pressing the remaining parts that are not held by the first jig among the three or more parts so as to overlap and press the parts held by the first jig A second jig attached to face the first jig,
A holding mechanism that holds an arbitrary number of parts from the second jig side among the remaining parts so as to be fixed to the second jig;
A vibration welding apparatus having: The holding mechanism has a movable member protruding from the second jig toward the first jig,
The vibration welding apparatus according to claim 4, wherein a through-hole through which the movable member passes is formed in a remaining part not held by the first jig at a position corresponding to the movable member. The holding mechanism is driven at different operation timings so as to protrude from the second jig toward the first jig of the same type as the number of remaining parts not held by the first jig. At least the tip has a movable member that is tapered and tapered,
The remaining parts not held by the first jig have tapered tapered through holes that can receive the movable members up to predetermined parts corresponding to the respective types of movable members. The vibration welding apparatus according to claim 4, wherein the vibration welding apparatus is formed at a position where the welding is performed.   The vibration welding apparatus according to claim 4, wherein the holding mechanism includes a movable member disposed at a position for holding a side surface of the remaining part that is not held by the first jig. A method of manufacturing a vibration welded product having a welded portion in which three or more parts are overlapped and integrated,
A step of superposing and pressing the three or more parts;
A process of repeatedly performing vibration welding between two adjacent parts while sequentially pressing the three or more parts from the part side disposed on the outermost layer;
Releasing the pressure of the parts after the vibration welding for all parts;
A method for manufacturing a vibration welded product. The step of performing vibration welding includes:
In a state where all the parts except the parts arranged on the outermost layer are held, the held parts are caused to vibrate together with the parts arranged on the outermost layer, thereby the outermost layer. A first welding step of vibration welding the parts arranged on the part and the parts adjacent thereto;
After the first welding step, the holding of the welded part is released, and the remaining part that is held is vibrated relative to the welded part, thereby adjacent to the welded part. At least one second welding step for vibration welding the parts to be
The method for producing a vibration welded product according to claim 9, comprising:

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