JP2020114593A - Joint device - Google Patents

Abstract

To provide a joint device which can cope with both a material which can be easily jointed in a vertical oscillation and a material which can be easily jointed in a lateral oscillation.SOLUTION: A joint device 1 comprises: a first horn 41 arranged on a first member 71 side; a second horn 141 arranged on a second member 72 side; a compression device 50 for applying a pressure between the first horn 41 and the second horn 141 so as to reduce a gap between the first horn 41 and the second horn 141; a first oscillation device 30 for applying oscillation in a direction being orthogonal to a compression direction of the compression device 50 to the first horn 41; and a second oscillation device 130 for applying oscillation in a direction being parallel to a compression direction of the compression device 50 to the second horn 141. According to the above-mentioned structure, by one joint device 1, oscillation in a lateral direction and oscillation in a vertical direction can be applied to a joint object member.SELECTED DRAWING: Figure 1

Description

The present invention relates to a joining device.

Japanese Unexamined Patent Application Publication No. 2016-117100 (Patent Document 1) discloses a joining device for joining metal members or a metal member and an inorganic member by sonic vibration or ultrasonic vibration.

JP, 2016-117100, A JP, 2005-142537, A

In the joining device disclosed in Japanese Unexamined Patent Application Publication No. 2016-117100 (Patent Document 1), in order to join the metal members to each other or the metal member and the inorganic member, the first resonator vibrates in a lateral direction orthogonal to the pressing direction. And applied to the bonding target part from the second resonator.

On the other hand, depending on the material of the members to be joined, it may be easier to join by applying vertical vibration along the pressing direction. For example, Japanese Unexamined Patent Application Publication No. 2005-142537 (Patent Document 2) discloses a joining device that applies longitudinal vibration.

Therefore, in order to cope with joining to members made of various materials, it is preferable to have a joining device for joining by lateral vibration and a joining device for joining by longitudinal vibration. However, it is not preferable to prepare two joining devices in terms of installation area and cost.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a joining device capable of applying vertical vibration and horizontal vibration by one unit. ..

Briefly, the present invention is a joining device for joining a first member and a second member, wherein a first horn arranged on the first member side and a second horn arranged on the second member side, A pressure device that applies pressure between the first horn and the second horn so as to narrow the space between the first horn and the second horn, and vibration in a direction orthogonal to the pressure direction of the pressure device. A first vibrating device that applies to the horn, and a second vibrating device that applies vibration in a direction parallel to the pressurizing direction of the pressurizing device to the second horn.

With such a configuration, it is possible to apply the horizontal vibration and the vertical vibration to the joining target members with one joining device.

Preferably, the joining device further includes a control device that controls the first vibration device and the second vibration device. The joining device has a first mode and a second mode as operation modes. The control device operates the first vibrating device in the first mode with the second vibrating device stopped, and operates the second vibrating device in the second mode with the first vibrating device stopped. Let

With such an operation mode, materials that are easily joined by lateral vibration can be joined in the first mode, and materials that are easily joined by longitudinal vibration can be joined in the second mode. The joining can be handled by one joining device.

More preferably, the joining device further has a third mode as an operation mode. The control device operates the first vibrating device as well as the second vibrating device during one joining operation in the third mode.

By operating in the third mode, it is possible to satisfactorily bond a material that is easily joined by lateral vibration and a material that is easily joined by longitudinal vibration.

Preferably, the first member is made of metal and the second member is made of a material containing resin. Therefore, it is possible to realize a joining device capable of joining a metal material and a material containing resin.

Preferably, the contact area of the second horn with the second member is larger than the contact area of the first horn with the first member. When the surface hardness of the first member with which the first horn contacts differs from the surface hardness of the second member with which the second horn contacts, the member having the smaller surface hardness due to the pressure applied to the contact surface between the horn and the member. The contact surface on the side is easily scratched. Therefore, the area in which the second horn, which is the member side with low hardness, contacts the second member is made larger than the area in which the first horn, which is the member side with high hardness, contacts the first member. As a result, it is possible to produce the joint joint without damaging the contact surface between the horn and the member as much as possible.

According to the joining apparatus of the present invention, one apparatus can perform both joining by longitudinal vibration and joining by lateral vibration.

It is a figure which shows the structure of the joining apparatus which concerns on this Embodiment. It is a waveform diagram for explaining the control by the control device 100 in the case of applying lateral vibration to the joining target (first mode). It is a waveform diagram for explaining control by control device 100 in the case of applying vertical vibration to a joining object (2nd mode). FIG. 6 is a waveform diagram for explaining control by the control device 100 in the case where vertical vibration and horizontal vibration are applied to a bonding target during one bonding operation (third mode).

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Hereinafter, a plurality of embodiments will be described, but it is planned from the beginning of the application to appropriately combine the configurations described in the embodiments. In the drawings, the same or corresponding parts are designated by the same reference numerals and the description thereof will not be repeated.

FIG. 1 is a diagram showing the configuration of the joining device according to the present embodiment. With reference to FIG. 1, the joining device 1 includes a power source 20, a first vibration device 30, a first horn 41, a second vibration device 130, a second horn 141, and a pressure device 50. And a control device 100.

The joining device 1 joins the first member 71 and the second member 72. The first horn 41 is arranged on the first member 71 side. The second horn 141 is arranged on the second member 72 side.

The first member 71 and the second member 72 are plate members, for example. The first member 71 and the second member 72 are overlapped and sandwiched between the first horn 41 and the second horn 141.

The pressurizing device 50 applies pressure between the first horn 41 and the second horn 141 so as to narrow the space between the first horn 41 and the second horn 141.

The first vibration device 30 includes a vibrator 31 that vibrates by receiving a high frequency from the power supply 20 that generates a high-frequency AC voltage for joining from the commercial power supply 10, and an amplifier 32 that amplifies the vibration of the vibrator 31. The second vibration device 130 includes a vibrator 131 that vibrates by receiving a high frequency from the power supply 20 that generates a high frequency AC voltage for joining from the commercial power supply 10, and an amplifier 132 that amplifies the vibration of the vibrator 131.

The first vibration device 30 applies vibration to the first horn 41 in a direction orthogonal to the pressure direction of the pressure device 50. In other words, the first vibration device 30 applies vibration in the direction parallel to the joint surface to the first horn. The second vibration device 130 applies vibration to the second horn 141 in a direction parallel to the pressure direction of the pressure device 50. In other words, the second vibrating device 130 applies vibration in the direction perpendicular to the joint surface to the second horn.

With such a configuration, it is possible to apply the horizontal vibration and the vertical vibration to the joining target member by the single joining device 1.

For example, for metals, it is known that good bonding can be obtained by arranging the objects to be bonded on a fixed anvil and applying pressure from above using a horn that vibrates in the lateral direction. Also, for example, in CFRP (Carbon Fiber Reinforced Plastics), good bonding can be obtained by placing the objects to be bonded on a fixed anvil and applying a pressure from above using a horn that vibrates in the vertical direction. Are known.

Therefore, according to the joining device 1, it is possible to join objects to be joined of various materials with one joining device.

When vibration is applied by at least one of the first vibration device 30 and the second vibration device 130, relative movement occurs between the second member 72 and the first member 71. By this relative movement, frictional heat is generated between the second member 72 and the first member 71, and the second member 72 and the first member 71 are welded.

The joining device 1 further includes a control device 100 that controls the first vibration device 30 and the second vibration device 130. The bonding apparatus 1 has a first mode and a second mode as operation modes.

When the control signal V1 is in the ON state, the first vibration device 30 operates, and when the control signal V1 is in the OFF state, the first vibration device 30 stops.

When the control signal V2 is in the ON state, the second vibration device 130 is activated, and when the control signal V2 is in the OFF state, the second vibration device 130 is stopped.

The control device 100 transmits the control signal V1 to the first vibration device 30 and the control signal V2 to the second vibration device 130 to cause the bonding device to perform the operation in the first mode and the second mode. be able to. The control device 100 can be realized by a microcomputer including a processor and a memory. The control device 100 controls the first vibration device 30 and the second vibration device 130 such that the program stored in the memory is read by the processor and corresponds to the designated operation mode.

FIG. 2 is a waveform diagram for explaining control by the control device 100 in the case of applying lateral vibration to the joining target (first mode). As shown at times t1 to t2 in FIG. 2, the control device 100 controls the control signals V1 and V2 so as to operate the first vibration device 30 while the second vibration device 130 is stopped in the first mode. To the transducers 31 and 131, respectively.

FIG. 3 is a waveform diagram for explaining the control by the control device 100 when the vibration in the vertical direction is applied to the joining target (second mode). As shown at times t11 to t12 in FIG. 3, the control device 100 causes the control signals V1 and V2 to operate the second vibration device 130 while the first vibration device 30 is stopped in the second mode. To the transducers 31 and 131, respectively.

Since these materials have these operation modes, materials that are easily joined by lateral vibration are joined in the first mode, and materials that are easily joined by longitudinal vibration are joined in the second mode. Can be handled by a single joining device.

More preferably, the first member 71 is made of metal and the second member 72 is made of a resin-containing material (for example, CFRP). Therefore, it is possible to realize a joining device capable of joining a metal material and a material containing resin.

The contact area of the second horn 141 that gives suitable longitudinal vibration to the resin material and the like to the second member 72 is the contact area of the first horn 41 that gives suitable lateral vibration to the metal material and the like to the first member 71. It is preferable to be larger than.

When the surface hardness of the first member 71 with which the first horn 41 contacts differs from the surface hardness of the second member 72 with which the second horn 141 contacts, the surface hardness is reduced by the pressure applied to the contact surface between the horn and the member. The contact surface on the smaller member side is easily scratched. Therefore, the area in which the second horn 141, which is the member side with low hardness, contacts the second member 72 is made larger than the area in which the first horn 41, which is the member side with higher hardness, contacts the first member 71. As a result, it is possible to produce the joint joint without damaging the contact surface between the horn and the member as much as possible.

More preferably, the bonding apparatus 1 further has a third mode as an operation mode. The control device 100 operates the first vibration device 30 and also the second vibration device 130 during one joining operation in the third mode.

FIG. 4 is a waveform diagram for explaining the control by the control device 100 in the case where the vibration in the vertical direction and the vibration in the horizontal direction are applied to the object to be joined during one joining operation (third mode).

As illustrated at times t31 to t32 in FIG. 4, the control device 100 controls the control signal V1( so as to operate the first vibration device 30 while the second vibration device 130 is stopped in the first half of the third mode. =ON) and V2 (=OFF) are transmitted to the vibrators 31 and 131, respectively.

Further, as shown from time t32 to t33 in FIG. 4, the control device 100 causes the control signal V1 to operate the second vibration device 130 in a state where the first vibration device 30 is stopped in the latter half of the third mode. (=OFF) and V2 (=ON) are transmitted to the vibrators 31 and 131, respectively.

By operating the joining device 1 in such a third mode, it is possible to favorably dissimilar materials between a material that is easily joined by lateral vibration (for example, metal) and a material that is easily joined by longitudinal vibration (for example, CFRP). The possibility of joining to is increased.

Although the example in which the first vibrating device 30 is moved first and the second vibrating device 130 is moved later is shown, the order of moving may be reversed. Further, the time for moving the first vibration device 30 and the time for moving the second vibration device 130 may overlap.

As described above, according to the joining device 1 of the present embodiment, it is possible to join metals and resins with one device. Therefore, it is possible to reduce the installation area of the equipment in a manufacturing process having multiple steps. In addition, the possibility of joining dissimilar materials such as joining metal and resin is also increased.

It should be considered that the embodiments disclosed this time are exemplifications in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 1 joining device, 10 commercial power source, 20 power source, 30,130 vibrating device, 31,131 vibrator, 32,132 amplifier, 41 first horn, 50 pressurizing device, 71 first member, 72 second member, 100 Controller, 141 Second horn.

Claims (5)

A joining device for joining a first member and a second member,
A first horn disposed on the first member side;
A second horn arranged on the second member side;
A pressurizing device for applying a pressure between the first horn and the second horn so as to narrow the space between the first horn and the second horn;
A first vibrating device that applies vibration to the first horn in a direction orthogonal to the pressing direction of the pressing device;
A second vibrating device that applies vibration in a direction parallel to the pressing direction of the pressing device to the second horn. Further comprising a control device for controlling the first vibration device and the second vibration device,
The joining device has a first mode and a second mode as operation modes,
The control device operates the first vibrating device in a state in which the second vibrating device is stopped in the first mode, and operates in a state in which the first vibrating device is stopped in the second mode. The joining apparatus according to claim 1, which operates the second vibration device. The joining device further has a third mode as the operation mode,
The joining apparatus according to claim 2, wherein the control device operates the first vibrating device as well as the second vibrating device during one joining operation in the third mode. The joining device according to claim 1, wherein the first member is made of metal, and the second member is made of a material containing resin. The joining device according to any one of claims 1 to 4, wherein a contact area of the second horn with the second member is larger than a contact area of the first horn with the first member.

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