JPH06126833A - Apparatus for bonding synthetic rein hollow member and jig usable therefor - Google Patents

Abstract

PURPOSE:To provide an apparatus for bonding a synthetic resin hollow member capable of reducing a production cost by improving workability of bonding operation and a jig usable for the apparatus by a method wherein a jig which has a high general serviceability is used. CONSTITUTION:In a bonding apparatus wherein a jig 1 consisting of a lower receiving part 16, a heating coil 17, and an upper receiving part 18, is freely detachably arranged, the lower receiving part 16 of the jig 14 is freely rotatably arranged on a horizontal surface and besides at least one heating coil 17 which is divided into a plurality of parts and the lower receiving part 16 are respectively movably forward and backward arranged. Hollow member 28, 43 are made to be easily set and taken out, and besides various hollow members are enabled to be dealt with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining apparatus for joining hollow members made of synthetic resin by using a high frequency current, and a jig usable for the joining apparatus.

[0002]

2. Description of the Related Art Conventionally, for example, air cleaners for motorcycles, various ducts for electric equipment, etc. are formed by molding synthetic resin into a plurality of, for example, cylindrical hollow members. A predetermined shape is obtained by joining the hollow members. An apparatus for joining such hollow members is known, for example, in Japanese Utility Model Publication No. 63-34908.
In this device, a groove is provided on the upper joint surface of the case body made of synthetic resin, and a metal wire is attached to this groove,
The cap is joined to the case by forming a convex shape on the joint surface, fitting the convex shape into the concave groove, and heating the metal wire with high frequency. Since it is necessary to position the case and the cap in this joining, the case and the cap are set in predetermined jigs and joined.

[0003]

However, in this apparatus, although good joining strength can be obtained, there is a problem that the workability of joining work is poor. That is, since hollow members such as a case and a cap are joined in a state where they are positioned by a jig, for example, when both hollow members have the same shape but their positioning is slightly different due to model change or design change, Alternatively, when one of the hollow members has, for example, a convex portion and a different shape, a dedicated jig is required for each, and the jig must be set in the joining device one by one. The workability of the joining work will be poor. Therefore, the present invention has been made in view of the above circumstances, and by using a highly versatile jig, the synthetic resin hollow member that can improve the workability of the joining work and reduce the production cost. It is an object of the present invention to provide a joining device and a jig that can be used for the device.

[0004]

In order to achieve such an object, a joining device for hollow members made of synthetic resin according to the present invention comprises a lower receiving portion and an upper receiving portion which respectively support a pair of hollow members made of synthetic resin, A jig having a heating coil divided into a plurality and arranged so as to surround the joint portion of the hollow member is detachably arranged, and the predetermined pressure is applied to the upper receiving portion. In a joining device for supplying a high frequency current to a heating coil to join end faces of a pair of hollow members, the lower receiving portion is rotatably arranged on a horizontal plane, and at least one of the heating coils and the lower receiving portion. And movably arranged in the front-rear direction. Further, a jig that can be used in the above joining device of the present invention is arranged so as to be movable in the front-rear direction by an operating member,
And a disc in which a spherical body is rotatably accommodated in a concave portion or a concave groove formed on the upper surface thereof, and a concave groove or a concave portion which is disposed on the disc and into which a part of the spherical body is fitted is formed. A rotating disk, a guide disk disposed above the rotating disk and guiding at least one of a pair of synthetic resin hollow members, and disposed above the guide disk,
It is characterized in that it is provided with a heating coil divided into a plurality each having an arc portion, and a coil moving device for moving at least one of the heating coils in the front-back direction.

[0005]

According to the apparatus for joining hollow members made of synthetic resin of the present invention, one hollow member is set in the lower receiving portion of the jig detachably arranged in the apparatus, and the other hollow member is placed on this hollow member. Set the hollow member. Then, while the upper receiving portion presses the other hollow member with a predetermined pressure, a high-frequency current is supplied to the heating coil arranged at the joining portion. The high-frequency current melts the resin in the joint portion of the hollow members to join the both hollow members. The lower receiving portion is rotatably arranged, and by rotating the member, positioning of both hollow members becomes easy.
Further, the hollow member can be easily set and removed by moving a part of the lower receiving portion and the heating coil in the front-rear direction. Further, according to the jig of the present invention, the pair of hollow members to be joined are set in and removed from the jig while rotating the rotary disc and moving the heating coil and the rotary disc appropriately in the front-back direction. Therefore, even when the positioning positions of the pair of hollow members are changed, or when the shape is changed due to the addition of a convex portion or the like to the hollow members, they can be joined using one jig. A highly versatile jig can be obtained.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 show a front view and a side view of a joining apparatus according to the present invention. In the figure, the joining apparatus 1 has a frame 3 movable by casters 2, and a gate 5 is erected on the frame 3 via a lower plate 4. A cylinder 6 is arranged on the upper girder 5a of the gate 5, and a shaft 6a of the cylinder 6 is provided.
The upper plate 7 is fixed to the lower end of the. A pair of guide shafts 8 a and 8 a are provided at both ends of the upper plate 7.
The guide shafts 8a and 8b are connected to the upper girder 5a of the gate 5 and the lower plate 4, respectively. A power feeding box 9 is arranged at the rear portion of the lower plate 4, and the power feeding box 9 has a joining portion 9a, cylinders 10a and 10b, and a connecting plate 11.
a, 11b, etc. are provided. The connection plates 11a and 11b of the power feeding box 9 are electrically connected to a high frequency generator 12 including, for example, a transistor inverter. A copper pipe (not shown) is fixed to the surface of each of the connection plates 11a and 11b of the power feeding box 9 by brazing, and the high frequency generator 1 is attached to the pipe.
The cooling water is supplied and circulated from the connection plate 2 and the connection plates 11a and 11b
This prevents heat generation when energized.

Each of the lower plate 4 and the upper plate 7 is provided with four air clamps 13, and a jig 14 is set between the upper and lower plates 4 and 7 by the air clamps 13. The jig 14 is configured as shown in FIG. That is, the jig 14 has a lower receiving portion 16 arranged on the plate 15, a heating coil 17, an upper receiving portion 18, etc., and is housed and arranged in a case 19 surrounded by insulating plates 19a to 19d. Has been done. The lower receiving part 16
Is a disk 21 fixed on the plate 20, a rotating disk 22 rotatably arranged on the disk 21, and a guide disk arranged on the rotating disk 22 via four columns 23. It consists of 24 mag. As shown in FIG.
Further, as shown in FIG. 5, eight spherical recesses 21a are provided, and the lower part of the metal ball 25 is rotatably accommodated in the recess 21a. Further, a concave groove 22a is provided on the lower surface of the rotary disk 22, and when the rotary disk 22 is placed on the disk 21, the upper part of the metal ball 25 is fitted into the concave groove 22a. Due to the rotating operation of the metal ball 25, the rotating disk 22 is rotated 360 degrees on the disk 21. The disc 21 and the rotary disc 22 are integrally formed by inserting the fixing member 26 into the through holes 21b and 22b provided in the central portions thereof and screwing the bolt 27 into the screw portion of the fixing member 26. It is connected. Further, the upper and lower sides of the column 23 are fixed to the rotary disc 22 and the guide disc 24 by screws (not shown). As shown in FIG. 5, the guide disk 24 is provided with a guide hole 24a into which a hollow member 28 to be joined is fitted.

One end of a drive rod 28 is fixed to the front surface (right side in FIG. 3) of the plate 20 to which the lower receiving portion 16 is fixed, and the other end of the drive rod 28 is connected via a coil spring 29. One end of the operating rod 30 is connected. The operating rod 30 is slidably fitted in a hole formed in the side wall 19c of the case 19 and has an operating ball 30a at the other end.
Is fixed. The plate 20 is movably arranged on the guide rails 31a and 31b.
As a result, when the operating ball 30a is pulled in the direction of arrow A in FIG. 3 against the biasing force of the coil spring 29, the plate 2
0 moves together with the lower receiving portion 16 in the arrow B direction. When the pulling force of the operation ball 30a is released,
The lower receiving portion 16 and the like return to the original predetermined position, that is, the position having the predetermined positional relationship with the heating coil 17, by the biasing force of the coil spring 29.

The heating coil 17 is disposed in the opening of the upper surface of the case 19 and is composed of three flat copper plates 17a to 17c each having an arc portion. These copper plates 17a
˜17c has copper pipes 32a˜32c at the upper end.
Are fixed, and the hose connectors 33 are fixed to both ends of the pipes 32a to 32c, respectively.
Connection conductors 34a to 34d are fixed to the front end portions of the copper plates 17a and 17b and the rear end portion of the copper plate 17c. Also,
The copper plate 17c is arranged so as to be movable in the front-rear direction, and the front end portion thereof is connected to the cylinder 3 via the connecting member 35.
6 are connected. By the operation of this cylinder 36,
The copper plate 17c moves as shown by the arrow C, the connecting conductor 34c becomes the connecting conductor 34a, and the connecting conductor 34d becomes the connecting conductor 34.
b respectively. The copper plates 17a and 17b are connected to the connection plates 37a and 37b.
7b is fixed to mounting plates 38a and 38b arranged on the side surface 19a of the case 19. Then, the connection plates 37a, 37b are inserted into the joint portion 9a of the power feeding box 9, and the cylinders 10a, 10b are actuated,
The heating coil 17 and the power feeding box 9 are electrically connected to each other by pressing the connection plates 37a and 37b by a pressing plate (not shown) connected to the cylinders 10a and 10b.
The cylinder 36 operates by operating the operation member 39 arranged on the plate 15 of the jig 14. The upper receiving portion 18 has a plate 39 and a guide member 40 fixed to the lower surface of the plate 39, and a copper pipe 41 is wound around the lower end of the guide member 40 once. The pipe 41 extends upward along the side wall of the guide member 40, and has the hose connector 4 at both ends thereof.
2 are fixed respectively. And this upper receiving part 1
The other hollow member 4 to be joined to the guide member 40 of FIG.
3 is fitted. In addition, the upper receiving portion 18 is provided in the jig 14
Is not set in the joining device 1, 4
It is supported on the plate 15 by a book support rod 44.

Next, an example of how to use the joining apparatus 1 will be described. First, the jig 14 is placed on the lower plate 4 from the front of the joining device 1 and pushed backward by using a guide or the like arranged on the lower plate 4. When the jig 14 is pushed, the connection plates 37a and 37b are inserted into the joint portion 9a of the power feeding box 9, and the heating coils 17 and the power feeding box 9 are electrically connected by the operation of the cylinders 10a and 10b. Further, each hose connector of the jig 14 and each hose connector (not shown) of the power feeding box 9 are connected by a hose. Then, the cylinder 6 is operated to lower the upper plate 7 until it comes into contact with the plate 39 of the upper receiving portion 18, and the plate 39 is fixed to the upper plate 7 and the plate 15 is fixed to the lower plate 4 by the air clamp 13. To do. Then, the upper plate 7 is raised to remove the support rod 44. In this state, the upper receiving portion 18 moves up and down by the operation of the cylinder 6. Next, while setting one hollow member 28 in the lower receiving portion 16,
On the upper joint surface of this hollow member 28, the other hollow member 43
To place. At this time, the positioning of the hollow members 28 and 43 is performed by manually rotating the hollow member 28 or the like by a predetermined angle or by appropriately operating the operation ball 30a.

In this state, the cylinder 6 is operated to fit the guide portion 40 of the upper receiving portion 18 into the hollow member 43 and press the hollow member 43 against the hollow member 28 with a predetermined pressure. Then, the operating member 39 is operated to operate the cylinder 36 to move the copper plate 17c in the arrow C direction,
The copper plates 17a and 17b are brought into contact with each other. As a result, the copper plates 17a-17c-17b are electrically conducted, and the single-winding heating coil 17 is formed. After the heating coil 17 is formed, the high frequency generator 12 is operated to supply a high frequency current to the heating coil 17 via the power supply box 9 and the like, and also supply cooling water to each pipe. Thereby, for example, the joint portion is heated and melted via the conductive member disposed at the joint portion of the hollow members 28 and 43, and the both are joined.
At this time, the pipe 41 of the guide member 40 is also heated by the induction current of the heating coil 17, so that the pipe 41 is heated from the inside and outside. When the joining of the hollow members 28 and 43 is completed, the cylinder 6 is operated to raise the upper plate 7, the guide member 40 is extracted from the hollow member 43, and the operating member 39 is operated to operate the cylinder 36. To move the copper plate 17c forward. Then, for example, the operation ball 30a is operated to pull the lower receiving portion 16 to a predetermined position, and the joined hollow members 28 and 43 are taken out upward. Then, the next hollow members 28 and 43 are set, and the same joining work as above is performed. The series of operations described above are sequence-controlled by, for example, a control device provided in the high frequency generator 12 section.

Thus, according to the above embodiment, the jig 1
Since the lower receiving part 16 of 4 is rotatable in the horizontal plane by 360 degrees and is movable in the front-rear direction, and the copper plate 17c is also movable in the front-rear direction, it is easy to set and remove the hollow member 28, and in particular, the hollow member 28 is hollow. Even if the members 28 and 43 have convex portions, they can be easily set and removed. Further, even when the positioning positions of the hollow member 43 and the hollow member 28 are changed due to, for example, a change in the design of the hollow member 43, the lower receiving portion 16 can be rotated by a predetermined angle for positioning and the hollow member can be positioned. Two
8, 43 can be joined at any position of 360 degrees. As a result, the workability of the joining work can be greatly improved, and the production cost can be reduced. Further, the jig 14 has significantly improved versatility as described above, and it is not necessary to manufacture a new jig for each product, and the production cost can be further reduced. Furthermore, the jig 14 is
Placed on the lower plate 4 of the joining device 1 and pushed backward,
Only by operating the cylinders 10a and 10b, the electric connection with the power feeding box 9 can be performed, and the jig 14 can be easily set and removed. Still further, the lower receiving portion 16 includes a metal ball 25 arranged on the disk 21.
The rotary disk 22 can be rotated with a simple structure in which the rotary disk 22 is fitted into the concave groove 22a of the rotary disk 22, and the lower receiving portion 16 can be easily assembled and maintained.

In the above embodiment, the case where the pair of hollow members 28 and 43 are cylindrical has been described, but the present invention is not limited to this, and may be a hollow member having an elliptical cross section, for example. It may be a hollow member having a rectangular cross section, and can be applied to all hollow members made of synthetic resin. In the jig 14 of the above embodiment, the disc 2
Although the concave portion 21a is provided on the upper surface of 1 and the concave groove 22a is provided on the lower surface of the rotary disk 22, for example, the concave groove may be provided on the upper surface of the disk 21 and the concave portion may be provided on the lower surface of the rotary disk 22. is there. Furthermore, it goes without saying that the shape of the heating coil 17 and the configuration of the lower receiving portion 16 and the upper receiving portion 17 in the above embodiment are merely examples, and various modifications can be made without departing from the scope of the present invention.

[0014]

As described in detail above, according to the apparatus for joining hollow members made of synthetic resin according to the present invention and the jig usable for the apparatus, it is easy to set and remove the hollow members, and the joining work is performed. And the production cost can be reduced.
In addition, it is possible to obtain a highly versatile jig, and it is possible to deal with hollow members having various shapes.

[Brief description of drawings]

FIG. 1 is a front view of an apparatus for joining synthetic resin hollow members according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an exploded perspective view in which a part of the jig is cut away.

FIG. 4 is an exploded perspective view of the lower receiving portion.

FIG. 5 is a sectional view of the lower receiving portion.

[Explanation of symbols]

 1: Joining device 4: Lower plate 6: Cylinder 7: Upper plate 9: Power supply box 14: Jig 16: Lower receiving part 17: Heating coil 18: Upper receiving part 21: Disk 22: Rotating disk 24: Guide disk 25: Metal spheres 28, 43: Hollow member 36: Cylinder 40: Guide member

Claims (2)

[Claims] 1. A lower receiving part and an upper receiving part respectively supporting a pair of hollow members made of synthetic resin, and a heating coil arranged so as to surround a joint portion of the hollow members and divided into a plurality of parts. A jig having a jig is detachably disposed, and a high-frequency current is supplied to the heating coil while applying a predetermined pressure to the upper receiving portion to join the end faces of the pair of hollow members together. The lower receiving portion is rotatably arranged on a horizontal plane, and at least one of the heating coils and the lower receiving portion are arranged so as to be movable in the front-rear direction. apparatus. 2. A disk, which is movably arranged in the front-rear direction by an operating member, and in which a spherical body is rotatably housed in a recess or groove formed on the upper surface thereof, and which is arranged on the disk.
A rotary disk having a concave groove or a recess formed in a lower surface thereof into which a part of the spherical body is fitted, and a guide disk disposed above the rotary disk and guiding at least one of a pair of synthetic resin hollow members. And a heating coil disposed above the guide disk and divided into a plurality of parts each having an arc portion, and a coil moving device for moving at least one of the heating coils in the front-rear direction. A jig that can be used in a device for joining synthetic resin hollow members.