JPH10310742A - Fixing of part and part-attaching apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify adhesion process in fixing a nut part to a member to be attached by an adhesive and improve productivity of the adhesive process. SOLUTION: A nut part 3 sent from a nut feeder 1 to a nut inserting machine 2 is held by an arm 2a of the nut inserting machine 2 and carried to the center part of an induction coil 4a of a heater 4 and once stopped and heated by electromagnetic induction action. On other hand, an adhesive 7 is applied to the attaching hole 5a of a member 5 to be attached by a coating device 6. Then, the arm 2a is extended and the nut part 3 is fitted into the attaching hole 5a and the adhesive 7 is heated by heat transmitted from the nut part 3 and cured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component fixing method and a component mounting apparatus in which components are bonded with an adhesive.

[0002]

2. Description of the Related Art Heretofore, there has been known a method of using an adhesive as a means for fixing a nut component having a female screw (so-called outsert nut) to a member to be mounted such as a synthetic resin member. In such a case, an adhesive that is cured by heating may be used. This is generally higher in adhesive strength than an adhesive that cures by natural drying,
Further, it is easier to handle than the two-liquid type adhesive.

In order to bond the above-mentioned nut component to a member to be mounted with such a heat-curable adhesive, first, an adhesive is applied to the nut component, and the nut component is attached to a component mounting position of the member to be mounted. At this time, the adhesive has no adhesive strength in an unheated state, but a certain holding power can be expected due to the viscosity of the adhesive. Also, if the mounting member is provided with a mounting hole or an appropriate locking portion having substantially the same size as the nut component, and the nut component is fitted into the mounting member, the nut component is not cured until the adhesive hardens. Is prevented from being detached from the attached member. Thereafter, the member to be mounted is heated in the heating furnace for a predetermined time. In this heating furnace, an atmosphere temperature at which the adhesive is hardened can be obtained. In some cases, the member to be mounted is manually put into and taken out of the heating furnace, and the time required for the adhesive to harden is set in the heating furnace. May be provided. Further, in order to cure without using a heating furnace, a method in which hot air is blown in the vicinity of the adhesive for a predetermined time using, for example, a drier is also possible.

[0004]

However, the above-mentioned curing means using a conventional heating furnace requires equipment large enough to cover the member to be mounted. On the other hand, this is not the case if a dryer is used. However, for example, when attaching parts to a plurality of locations on one member to be attached, it takes time and effort with one dryer. However, there is a problem that the equipment becomes complicated and the cost increases. In addition, it is necessary to heat the adhesive for a predetermined time (several minutes or more) in order to cure the adhesive, and there is a problem that the heating equipment becomes large-scale especially in mass production.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to simplify a bonding process when fixing a component to a member to be mounted with an adhesive and improve productivity.

[0006]

Means for Solving the Problems In order to solve this problem, the following component fixing method and component mounting device were created. That is, a first invention is a method of fixing a component to a member to be mounted, in which an appropriate amount of a thermosetting adhesive is previously attached to a component mounting position of the member to be mounted, and the component is bonded to the bonding member. It is characterized in that the agent is heated to such an extent that it can be hardened and then arranged at the component mounting position.

According to the above component fixing method, when the thermosetting adhesive comes into contact with the component, it is heated and cured by the heat transmitted from the component, and the component and the member to be mounted are bonded. That is, it is not necessary to use a conventional heating and curing furnace, the component bonding step is simplified, and no special time is required for curing the adhesive.

According to a second aspect of the present invention, there is provided an apparatus for mounting a metal part on a member to be mounted, an application means for applying an appropriate amount of a thermosetting adhesive to a part mounting position of the member to be mounted, and It is characterized by comprising heating means for electromagnetically heating a component to a predetermined temperature, and mounting means for supporting the metal component heated by the heating means and disposing the metal component at the component mounting position. .

In the above-described component mounting apparatus, the metal component is heated by the electromagnetic induction heating by the heating means and then placed at the component mounting position by the mounting means. Since a thermosetting adhesive is applied in advance to the component mounting position by the application means, the adhesive adheres to the metal component and is heated and cured by the heat transfer from the metal component. In other words, since the above-described component fixing method is used, there is no need to use a conventional heating furnace, the component bonding process is simplified, and no special time is required for curing the adhesive. . In addition, the heating time can be shortened because only the metal parts need to be heated, and the heater part of the apparatus is relatively simple and compact because the metal parts are heated by electromagnetic induction. At the same time, it can contribute to energy saving.

[0010]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically showing a configuration of a component mounting device, and FIG. 2 is an enlarged sectional view showing a mounted state of a component (outsert nut). As shown in FIG.
The component mounting device, specifically, an outsert nut bonding machine is roughly classified into a nut feeder 1, a nut insertion device 2, a heating device 4 for heating the nut component 3, and an adhesive to the member 5 to be mounted in advance. And an adhesive application device 6 to be applied.

The above-mentioned nut feeder 1 feeds the nut component 3 to the nut inserter 2 with the nut component 3 in a predetermined posture. It is inserted into the mounting hole 5a of the member 5. The nut component 3 is a so-called outsert nut made of metal (iron) in this example, and is formed in a flanged shape. The heating device 4 is connected to a power supply (not shown) and heats the nut component 3 located inside the induction coil 4a by an induction current generated by electromagnetic induction. The adhesive applying device 6 is configured such that the mounting member 5 made of, for example, a synthetic resin is carried into a predetermined position, and then the mounting hole 5a is formed.
Is configured to apply an appropriate amount of the adhesive 7. In this case, since the nut component 3 has a shape through which the screw hole penetrates, it is preferable that the adhesive 7 is adhered to the hole edge and the inner peripheral surface avoiding the bottom of the mounting hole 5a. When the nut component 3 has a bottomed shape, an appropriate amount of the adhesive 7 may be placed on the bottom of the mounting hole 5a, and the adhesive 7 is less likely to protrude and is finished with a good appearance.

Next, the operation of the outsert nut bonding machine having the above configuration will be described. Now, the nut component 3 sent from the nut feeder 1 to the nut insertion machine 2 is carried to the center of the induction coil 4a after being held by the arm 2a, temporarily stopped there, and the electromagnetic force of the induction coil 4a being energized. Heated by induction. In this example, the heating is 3
Heated to about 200 ° C for ~ 5 seconds.

On the other hand, an appropriate amount of adhesive 7 is applied by an adhesive applying device 6 to the edge of the mounting hole 5a of the member 5 to be mounted. Note that the member 5 to be attached is provided with the adhesive 7 in the previous process.
May be carried in and used. In that case, the adhesive application device 6 becomes unnecessary.

Thereafter, the arm 2a extends, the heated nut part 3 is fitted into the mounting hole 5a, and the adhesive 7 is pressed and adheres to the nut part 3. All the operations up to this point are automatically performed. Here, the correspondence between the above-described embodiment and the configuration of the present invention will be summarized.
The nut component 3 constitutes a component or a metal component, the adhesive application device 6 constitutes application means, the heating device 4 constitutes heating means, and the nut inserter 2 constitutes mounting means.

As described above, the nut part 3 is
As shown in (2), it is in a state of being fitted in the mounting hole 5a, but is not firmly fixed immediately after being fitted, and is held by the adhesiveness of the adhered adhesive 7.
Although not shown, the nut part 3 can be held by fitting the nut part 3 with the mounting hole 5a.
An appropriate locking means may be provided on the side of the mounting hole 5a. From this state, the heat of the nut component 3 is transmitted to the adhesive 7 and the curing of the adhesive 7 starts. The amount of heat transmitted to the adhesive 7 is determined by the heat capacity of the nut component 3, but the amount of the adhesive 7 applied and the heat capacity (size, shape, material) of the nut component 3 to the extent that the adhesive 7 is reliably cured. Shall be defined.

As described above, since the adhesive 7 is hardened by the heat transmitted from the nut component 3 attached to the member 5 to be attached, the member 5 to be attached is heated for heating the adhesive 7.
The (molded article) does not need to be placed in a specific place (for example, a heating furnace). Therefore, the next process is the nut part 3
If it is a manufacturing process other than the process related to the above, it can be started immediately, and it can be immediately transported to another factory or a warehouse. That is, the curing step of the adhesive 7 proceeds simultaneously with another molding step or the transportation of the molded article, and the molding cycle of the product can be shortened.

Since the heating device 4 employs the electromagnetic induction method, only the nut part 3 can be efficiently heated, and the arm 2a of the nut insertion machine 2 is connected to the member 5 to be mounted.
The structure around the operating part to be separated from and brought into contact with can be made relatively simple. Therefore, the component mounting device becomes compact and easy to install, and automation becomes easy.
The heating means is not limited to the electromagnetic induction method, but may be any other means. A heating means that can be heated in a short time is preferable for mass production. Further, the component to be bonded and fixed with the adhesive 7 is not limited to the nut component 3, but may be any component and material having a sufficient heat capacity, and may be applied to any metal component. be able to. In addition, it is needless to say that the present invention can be implemented in various modified embodiments based on the knowledge of those skilled in the art.

[0018]

As described above, according to the component fixing method of the present invention, the pre-heated component comes into contact with the thermosetting adhesive and is heated and cured. It is not necessary to use a conventional heating and curing furnace, the component bonding step is simplified, and no special time for curing the adhesive is required, so that productivity is improved. Also,
In addition to the above effects, the component mounting device of the present invention has a configuration in which only metal components are heated by electromagnetic induction, so that the heating time can be shortened, and the device can be made compact and easy to automate, It can also contribute to energy saving.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a configuration of a component mounting device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mounting state of a nut part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nut feeder 2 Nut insertion machine 3 Nut part 4 Heating device 5 Member to be attached 5a Mounting hole 6 Adhesive coating device 7 Adhesive

Claims (2)

[Claims] 1. A method for fixing a part to a member to be mounted, wherein a suitable amount of a thermosetting adhesive is previously attached to a part mounting position of the member to be mounted, and the part is cured by curing the adhesive. A component fixing method wherein the component is fixed to the component mounting position after being heated to such an extent that it can be heated. 2. An apparatus for mounting a metal part to a member to be mounted, an application means for applying an appropriate amount of a thermosetting adhesive to a part mounting position of the member to be mounted, and an apparatus for heating the metal part to a predetermined temperature. And a mounting means for supporting the metal component heated by the heating means and disposing the metal component at the component mounting position.