JPH0873928A - Induction heating apparatus - Google Patents

Abstract

PURPOSE: To drastically shorten a preparing time accompanied with the change of a work. CONSTITUTION: A jig part 20 having work jigs 22a, 22b matched for works 30a, 30b to be induction-heated is prepared in advance and fitted to a driving part 10. A heating coil 21 is energized in the condition of setting the works 30a, 30b to the work jigs 22a, 22b. On the other hand, at the time of driving a motor 11, the rotational force of the motor is transmitted to jig receivers 23a, 23b by a connecting mechanism part C, and the works 30a, 30b are rotated together with the work jigs 22a, 22b. In this result, the works 30a, 30b are induction-heated. Thereafter, the jig part 20 fitted to the driving part 10 is taken out and is exchanged to the separately prepared jig part thereby changing the work to another kind thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating device for high-frequency heating while rotating a work together with a work jig.

[0002]

2. Description of the Related Art Conventionally, this type of high frequency heating apparatus has a structure in which main components such as a heating coil, a work jig receiver, and a work rotating mechanism are attached to one housing.

[0003]

However, in the case of the above-mentioned conventional example, the following drawbacks are pointed out. That is, each time the type of work is changed, the work jig must be replaced with another one. In particular,
If the work jig is not completely attached, the positional relationship between the work and the heating coil may be displaced, resulting in a large number of defective products. For this reason, it is very difficult to shorten the setup time due to the work change.

The present invention has been made under the above-mentioned background, and its main object is to provide a high-frequency heating apparatus which does not have the above-mentioned drawbacks.

[0005]

A high frequency heating apparatus according to claim 1 of the present invention is provided with a heating coil for high frequency heating a work and a jig receiver for rotatably supporting a work jig of the work. A jig part, a driving part to which the jig part is detachably mounted and a motor for rotating the work is mounted, and the jig part is mounted to the driving part. It is characterized by comprising a connecting mechanism portion for connecting the motor and the jig receiver in a state.

In the high frequency heating apparatus according to claim 2 of the present invention, in addition to the structure of claim 1, the jig receiver is a tube extending in the vertical direction and is inserted into the jig portion. The lower end of the work jig is attached to the upper hollow part of the jig receiver, while the lower outer circumference of the jig receiver protruding from the bottom of the jig part is A lever is provided, and the coupling mechanism section is rotatably supported on the upper surface of the drive section and a gear coupled to the motor, and is erected on the peripheral edge of the gear and abuts on the lever. It is characterized by being composed of pins.

According to a third aspect of the present invention, in addition to the structure of the second aspect, the jig is constructed by inserting the lower end of the jig receiver into a hole formed in the shaft core of the gear. It is characterized in that the unit is detachably attached to the drive unit.

According to a fourth aspect of the present invention, in addition to the structure of the third aspect, the work jig has the lower end of the work jig attached to the upper side of the jig holder. The hole formed in the inside of the jig communicates with the hollow part of the jig receiver, and the jig is inserted into the driving part in a state where the jig part is mounted on the driving part. It is characterized in that air for blowing out and removing the work mounted on the work jig is fed from the lower end of the receiving part.

[0009]

First, the high-frequency heating device according to claim 1 will be described. A jig part having a work jig suitable for the work to be subjected to high-frequency heating is prepared in advance and mounted on the drive part. Energize the heating coil with the work set in the work jig. On the other hand, when the motor is driven, the rotational force of the motor is transmitted to the jig receiver by the connecting mechanism, and the work rotates with the work jig. As a result, the work is heated at high frequency. After that, by removing the jig part to which the drive part is attached and replacing it with a separately prepared jig part, it is possible to perform high-frequency heating of another type of work.

A high-frequency heating device according to claim 2 will be described. When the work jig is mounted in the hollow portion above the jig receiver, the work jig is positioned. Then, when the motor is driven with the jig portion mounted on the drive portion, the pin rotates together with the gear, and the jig receiver also rotates through the lever that is in contact with the pin. Along with this, the work rotates with the work jig.

A high frequency heating apparatus according to claim 3 will be described. The lower end of the jig holder that has come out from under the jig,
When the jig portion is inserted into the hole formed in the shaft center portion of the gear provided on the upper surface of the drive portion, the jig portion is detachably attached to the drive portion. By doing the opposite, the jig part can be removed from the drive part.

A high frequency heating apparatus according to claim 4 will be described. With the jig part attached to the driving part, air is blown from the tip of the lower end of the jig receiving part that has entered into the driving part and is passed through the hole formed in the hollow part of the jig receiving part and the work jig. Due to this air pressure, the work after heating is blown off from the work jig and comes off.

[0013]

Embodiments of the high frequency heating apparatus of the present invention will be described below with reference to the drawings. 1 is a vertical cross-sectional view of the high-frequency heating device, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a view corresponding to FIG. 3 showing a manner of mounting a jig part on a drive part. .

The high-frequency heating apparatus described by way of example here is an apparatus capable of high-frequency heating two workpieces at once, and is roughly divided into a drive section 10 and a jig section 20. ing. The heating coil 21 and the work jigs 22a and 22b are provided in the jig portion 20, while the motor 11 for rotating the works 30a and 30b is provided in the driving portion 10. The jig section 20 is detachably mountable on the upper surface 16 of the frame 17 of the drive section 10.

First, the details of the jig portion 20 will be described. The frame of the jig portion 20 includes a top plate 25 such as a bake, a spacer 26, and a lower plate 27.

Bearings 24a and 24b for rotatably supporting the jig receivers 23a and 23b are attached to the lower plate 27, respectively. The jig receiver 23a is a pipe extending vertically,
A hollow portion 231a as shown is formed. The upper side of the jig receiver 23a is inserted into the jig portion 20, and the lower end portion of the work jig 22a is mounted in the hollow portion 231a. On the other hand, the lower side of the jig receiver 23a extends out from under the jig portion 20, and a lever 232a is provided on the outer periphery thereof.

The work jig 22a has a cylindrical shape and has a hole 221a as shown in the drawing. The work 30a is positioned by the upper portion of the hole 221a. With the lower end of the work jig 22a attached to the upper side of the jig receiver 23a, the hole 2
21a and the hollow portion 231a communicate with each other.

The work 30a has a hole 2 formed in the top plate 25.
The work jig 22a is set through the 51a. The jig receiver 23b and the work jig 22b
Is exactly the same as above.

As shown in FIG. 2, a heating coil 20 having a spectacle shape is screwed onto the top surface of the top plate 25. In the heating coil 21, the works 30a and 30b are passed through the portions indicated by 211a and 21b in the drawing, respectively. The heating coil 21 is a pipe made of copper or the like, through which a cooling liquid passes. That is, the heating coil 21
Also serves as a cooling jacket, and a large number of holes (not shown) are formed in the inner peripheral surface of the portions indicated by 211a and 211b, respectively, and the cooling liquid is jetted from these holes to finish the work 30a, b is cooled respectively.

Next, details of the drive unit 10 will be described. As shown in FIG. 1, a motor 11 is mounted in the frame 17 of the drive unit 10. Three gears 12, 13a and 13b are axially supported on the upper surface 16 of the frame 17, respectively. The gear 12 is directly connected to the shaft of the motor 11, and the gears 13a and 13b both mesh with the gear 12. In the figure, 14a and 14b are gears 13
The bearings support a and b respectively.

A pin 131a is erected on the peripheral portion of the gear 13a. A hole 132a penetrating in the vertical direction is formed in the shaft center of the gear 13a. The lower end of the jig receiver 23a is inserted into the hole 132a.
The same applies to the gear 13b.

The distance between the gears 13a and 13b and the jig receiver 23
Since the distance between a and 23b is set to be exactly the same, the lower ends of the jig receivers 23a and 23b have holes 132a and 1a.
32b, respectively. The holes 132a and 132b are the jig portion 20.
Is to be detachably attached to the drive unit 10, so the hole diameter thereof is set to be slightly larger than the outer diameter of the jig receivers 23a and 23b.

When the jig portion 20 is mounted on the drive portion 10 in this manner, the levers 232a and 232b are moved to the pin 13
1a and 131b will be contacted, respectively. as a result,
When the motor 11 is driven, this driving force is applied to the gears 12, 1
It is transmitted to the jig receivers 23a and 23b through 3a and 13b, respectively. In addition, such a motor 11 and a jig receiver 23
A series of mechanisms for connecting a and 23b constitute a connecting mechanism section C.

An air supply source (not shown) is provided inside the drive unit 10. In FIG. 1, 15a and 15b are pipes of an air supply source. The pipes 15a and 15b are in communication with the hollow portions at the lower end portions of the jig receivers 23a and 23b that have entered the driving unit 10 in a state where the jig unit 20 is attached to the driving unit 10. ing.

The operation of the high-frequency heating device configured as described above will be described. First, the jig unit 20 having the work jigs 22a and 22b suitable for the works 30a and 30b to be subjected to high frequency heating is prepared in advance, and is mounted on the drive unit 10 as shown in FIG. At the time of this mounting, the lower ends of the jig receivers 23a and 23b protruding from the bottom of the jig portion 20 are inserted into the holes 132a and 132b of the gears 13a and 13b, respectively. When such a form is adopted, since the height of the jig portion 20 can be easily adjusted, the workpieces 30a, 30b can be easily adjusted.
This work can be eased when relying on human hands for the set.

Work pieces 30a, 30b are attached to the work jigs 22a, 22b.
The heating coil 21 is energized in the state where is set. On the other hand, when the motor 11 is driven, the rotational force of the motor 11 is transmitted to the jig receivers 23a and 23b by the coupling mechanism C, and the works 22a and 22b rotate in the same direction as the work jigs 22a and 22b. To do. As a result, the work 30
High frequency heating of a and b is performed at once.

When the high frequency heating is completed, the above air supply source is activated. Then, the air sent from the air supply source passes through the pipe 15a, the hollow portion 231a of the jig receiver 23a, and the hole 221a of the work jig 22a. The pressure of the air blows off the work 30a after the heating from the work jig 22a. Work 30b
Is exactly the same.

After that, the jig portion 2 mounted on the driving portion 10
By removing 0 and replacing it with a separately prepared jig, it is possible to perform high-frequency heating of another type of work.

The high-frequency heating apparatus according to the present invention is not limited to the above-described embodiment. For example, in the coupling mechanism section, the shaft of the motor provided in the drive section is used as a jig while the jig section is mounted in the drive section. It is also possible to adopt a form in which the shaft is connected to the jig receiver at the jig portion so that the shaft is inserted into the portion.

[0030]

As described above, in the case of the high-frequency heating apparatus according to claim 1 of the present invention, since the jig portion can be removably attached to the driving portion, the jig can be changed when changing the type of work. Only the parts need to be replaced, and the setup time associated with changing the workpiece can be greatly shortened. Moreover, unlike the prior art, since it is not necessary to remove the work jig as the type of work is changed, the positional relationship between the work and the heating coil is always kept constant, and there is no fear of producing many defective products.

In the case of the high frequency heating apparatus according to the second aspect of the present invention, since the connecting mechanism portion for transmitting the driving force of the motor to the jig receiver has a very simple structure, not only are there few failures, The cost of the device can be reduced.

In the case of the high-frequency heating apparatus according to claim 3 of the present invention, the structure for detachably mounting the jig portion on the drive portion is very simple, so that the cost of the apparatus can be reduced.

In the case of the high-frequency heating apparatus according to claim 4 of the present invention, the work after heating is blown off from the work jig by the pressure of air,
The removal of the work will be automated, which is significant in improving the performance of the device.

[Brief description of drawings]

FIG. 1 is a view for explaining an embodiment of the present invention and is a vertical cross-sectional view of a high frequency heating device.

FIG. 2 is a plan view of the device.

FIG. 3 is a side view of the same device.

FIG. 4 is a diagram corresponding to FIG. 3, which also shows how the jig unit is mounted on the drive unit.

[Explanation of symbols]

 10 Drive Part 11 Motor 20 Jig Part 21 Heating Coil 30a, b Work 22a, b Work Jig 23a, b Jig Receiver C Connection Mechanism Part

Claims (4)

[Claims] 1. A jig part to which a heating coil for heating a work at high frequency, a jig receiver for rotatably supporting a work jig of the work, and a jig part are detachably mounted. A drive unit, which is a support base, to which a motor for rotating the work is attached, and a connection mechanism unit that connects the motor and the jig receiver in a state in which the jig unit is mounted on the drive unit. A high-frequency heating device comprising: 2. The jig receiver is a pipe extending in the vertical direction, and the lower end of the work jig is mounted in a hollow portion above the jig receiver that is inserted into the jig portion. On the other hand, a lever is provided on the outer periphery of the lower side of the jig receiver that is exposed from under the jig portion, and the coupling mechanism portion is provided on the upper surface of the drive portion. The high-frequency heating device according to claim 1, wherein the high-frequency heating device comprises a gear that is axially supported and connected to the motor, and a pin that stands on a peripheral portion of the gear and that abuts on the lever. 3. The jig portion is detachably attached to the drive portion by inserting a lower end portion of the jig receiver into a hole formed in an axis of the gear. Item 2. The high frequency heating device according to item 2. 4. A hole formed inside the work jig and a hollow portion of the jig receiver communicate with each other with the lower end portion of the work jig attached to the upper side of the jig receiver. With the jig part attached to the drive part, the work attached to the work jig is blown off from the lower end of the jig receiver that has entered the drive part. The high-frequency heating device according to claim 3, wherein the air for supplying is supplied.