JP2001008419A - Insulation sticking device - Google Patents

Abstract

(57) [Problem] To simplify a step of pressing and heating an adhesive applied with an adhesive and a long conductor (work). An insulator sticking apparatus includes a work table (a rail, a roller, a carriage, a mounting table, and a work table) on which a long conductor and an insulator superimposed on a fixed work position via an adhesive are placed as a work OB. 15 and an up-and-down mechanism 16);
A plurality of pressing mechanisms 2... 2 for pressing the work OB placed on the work table 1 at a plurality of positions in the longitudinal direction in a direction in which the long conductor and the insulator are overlapped with each other, and each of the pressing mechanisms 2. Heating element 3 for heating work OB under pressure by 2
(Including a long conductor heating power supply 30a and a dummy material heating power supply 31a), and each pressing mechanism corresponding to the elongation when the work OB is heated and expanded in the longitudinal direction by the heating element 3. 2... 2 (including a plurality of link mechanisms 4... 4, a beam 5, and an up-and-down mechanism 6).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for attaching an insulator to a long conductor with an adhesive, and particularly to a rotor coil material of a large generator (10 MW or more) and an insulator via an adhesive. The present invention relates to a device for curing an adhesive by applying pressure and heat when bonding.

[0002]

2. Description of the Related Art In a rotor of a large generator, a rotor coil material (a long conductor: a composition close to pure copper), which is coated with an insulator coated with a varnish (adhesive material), is attached. . Here, pressure and heat treatment are performed when attaching and bonding an insulator coated with varnish to the rotor coil material, for example, in the case of pressure, using a vise or shrink tape, in the case of heating, This is performed by using a heating furnace or winding a ribbon-shaped electric heater around the rotor coil material.

[0003] The main reasons for performing the pressure treatment in the above-mentioned insulating material attaching step are (1) applying an adhesive material between the rotor coil material and the insulating material thinly without leakage, and (2) applying the rotor coil material. This is because insulators having different thermal expansion coefficients (amounts) can be expanded or contracted in accordance with the thermal expansion and contraction of the conductor.

Further, since the rotor coil material is generally provided with a ventilation hole or a ventilation groove for cooling as described above,
As the insulating material to be attached thereto, a material in which a corresponding hole is previously opened before attaching the insulating material according to the position of the hole or the groove is used. In this case, if the positions of the holes are misaligned after pasting, the cooling capacity of the rotor will decrease.To prevent this, the insulator and the rotor coil material will be placed in the positions of the holes and grooves at least until the adhesive is cured. Therefore, it is necessary to take measures such as restraining so as not to shift. Therefore, in the past, the rotor coil material was pressurized with a vise or shrink tape before heating so that the hole for cooling of the rotor coil material and the position of the hole of the insulator corresponding to the hole did not shift even after pasting. A process of strongly integrating the material and the insulator is performed.

[0005]

However, in the above-described insulator attaching step of the conventional example, the rotor coil material and the insulator are longer than 10 m in the case of a large-capacity large generator, There is a problem that it takes a lot of man-hours to integrate it manually by using a vise or shrink tape.

[0006] The method of heating the rotor coil material and the insulator (work) integrated as described above has been performed by using a heating furnace or an electric heater as described above. When the electric heater is used, the operation of taking in and out the electric heater becomes complicated.

In addition, in any of the heating methods, the number of rotor coils is several tens per rotor for a large generator.
In order to reach the book, a large number of man-hours were required as a whole, and labor was required for the work and a considerable amount of time was required. In addition to the time required for heating, the cooling after heating is naturally radiative cooling, and it takes several hours to cool a plurality of lots, so that the work efficiency is extremely poor.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems of the prior art, and simplifies a step of pressing and heating an adhesive applied with an adhesive and a long conductor (work). Its main purpose is to:

It is another object of the present invention to further simplify the steps performed by a person in setting up a step of pressing and heating a work and moving the work.

Still another object of the present invention is to reduce the lead time by forcibly cooling a heated workpiece.

[0011]

Means for Solving the Problems In order to achieve the above object, the present inventor is an apparatus for heating a long conductor and an insulator under pressure by a pressurizing mechanism and a heating element and applying the same with an adhesive. The pressurizing mechanism is composed of a plurality of components, each of which is joined to a common support member, and the heating element is capable of thermally expanding the long conductor and the insulator in the longitudinal direction by heating the common element. The supporting member has a pressing mechanism that presses in the longitudinal direction corresponding to the elongation of the long conductor and the insulator when the long conductor and the insulator are heated by the heating element and thermally expanded in the longitudinal direction. We focused on a configuration that can be supported movably.

In the above configuration, the pressurizing mechanism includes an actuator such as an air cylinder or a hydraulic cylinder that presses the work, a casing that holds the actuator, and the like. The heating element includes a heating power supply or a heat source. Therefore, a material containing a dummy material or the like is desirable.

For example, the plurality of pressurizing mechanisms are joined to a common support member via a link mechanism, while each of the pressurizing mechanisms includes an air cylinder as each actuator, and presses a work (a long conductor and an insulator) by the air cylinder. When the work is heated by the heat source of the heating element, the work expands in the longitudinal direction by thermal expansion. At this time, since the pressurizing mechanism is thermally isolated from the heat source via the insulator, there is almost no temperature rise, and therefore, the thermal expansion of this part is smaller than that of the work. The structure of the equipment is overwhelmed. However, in the above configuration, since the common support member supports each pressurizing mechanism during pressurization so as to be movable in the longitudinal direction of the work, the movement of each pressurizing mechanism makes it possible to follow the elongation of the work. Thereby, the unreasonableness to the equipment due to the difference in thermal expansion can be eliminated.

The above-mentioned supporting member is constituted by, for example, a beam parallel to a long conductor and an insulator. This beam is joined to a plurality of pressure mechanisms via, for example, a plurality of link mechanisms. Accordingly, when the long conductor and the insulator expand in the longitudinal direction by heating, the pressurizing mechanism during pressurization can move with respect to the beam by utilizing the fact that the link mechanism freely moves in the longitudinal direction. The above-described link mechanism is configured to perform a pendulum motion using, for example, a pin as a rotation axis. As an example of this link mechanism, a link capable of pendulum movement about the pin is provided between the beam and the pressurizing mechanism via a pin, and the pressurizing mechanism side (lower side) is provided via this link. A configuration in which the beam is freely moved in the lateral direction (almost horizontal direction) with respect to the beam side (upper side) can be given. In this configuration, the beam side portion of the link side hole through which the pin passes can be formed as a long hole extending substantially up and down by the width of the pin diameter. As a result, the link and the pressure mechanism side move up and down integrally along the elongated hole, so that the vertical displacement can be absorbed.

In the above configuration, in addition to the pressurizing mechanism and the heating element, a stand for placing the long conductor / insulator is further provided, and the pressurizing / heating is performed with the long conductor / insulator placed on the stand. However, it is also possible to further provide an up-and-down mechanism for retracting the pressurizing mechanism upward after the completion. By moving the pressure mechanism and the support member upward by this vertical mechanism, the pressure
The work before and after heating can be easily moved in the front-back direction. In addition, when a long coil and an insulator in a half coil state are to be used as a workpiece, both ends of the half coil are usually formed in an arc shape, and the arc portion of the end portion is directed downward. If the pressing mechanism is detached from the work, the pressing mechanism can be easily moved upward when the pressing mechanism is removed from the work.

In the above configuration, in addition to the pressurizing mechanism, the heating element, the up-down mechanism, and the table on which the work is placed, the preparation area, the pressurizing / heating area, the stock area, etc. A moving mechanism for setting the area and moving the work to each position can be provided. According to this moving mechanism, for example, the work is moved from the pressurizing / heating area to the stock area after the pressurizing mechanism is evacuated upward after the pressurizing / heating of the current work is completed. After that, the next work to be worked is further heated from the preparation area.
It can be moved to the pressurized area.

The moving mechanism desirably includes, for example, an air cylinder for moving the work up and down on the table, an actuator for horizontally moving the work in the table, and in this case, the work is once lifted upward at a predetermined position by the air cylinder. From there, the actuator can be moved in the horizontal direction by the actuator, and the operation of lowering the workpiece at the next predetermined position can be performed. With this moving mechanism, the work can be performed smoothly and quickly by laterally moving the work.

In the above configuration, a dummy material made of a material having a linear thermal expansion coefficient equivalent to that of the long conductor can be arranged outside the insulator located on the outermost side of the work. In this case, when the dummy material is pressurized by the pressurizing mechanism, the dummy material which has received the pressing force presses the insulator and the long conductor, and the long conductor, the insulator, and the dummy material are pressed under this pressure. Heated at the same time,
These extend to the same length, so that the insulator on the dummy material side, that is, the long conductor having the same thermal expansion and the one sandwiched between the dummy materials have the same length as the horizontal long conductor. Because they expand, the insulators do not shift relative to them.

In the above case, it is desirable that the dummy material is made of the same material as the long conductor. This is because the linear thermal expansion coefficient can be set to be the same by using the same material for both, so that the same amount of thermal expansion can be obtained only by heating at the same temperature increase rate, and the control thereof becomes easy.

In the above case, it is desirable that the heating element is one that performs heating of the long conductor and the dummy material by energization. This is because, when the heating is performed by the electric current, it is not necessary to consider the internal heat transfer to the long conductor and the dummy material as compared with the method of heating from the outside, so that the temperature control becomes easy. In this case, it is more desirable that the heating element is one that conducts and heats the long conductor and the dummy material with separate power sources. In order to heat the long conductor and the dummy material at the same temperature rise rate, it is necessary for the same power supply to have the same cross-sectional area, so that the dummy material also needs to be replaced according to the size of the work However, in the case of a separate power supply, it can be used with the dummy material attached, and replacement is easy.

In the above structure, the member of the pressing mechanism that presses the long conductor, the insulator or the dummy material is made of a heat-resistant and slippery material, and the casing of the pressing mechanism is configured such that the long conductor is heated during heating. , The insulator or the dummy material may have a thermal expansion difference in the longitudinal direction. Thereby, the member of the sliding material slides on the long conductor, the insulator or the dummy material, so that the difference in thermal expansion between the casing of the pressurizing mechanism and the dummy material can be absorbed.

In the above configuration, a cooling element for cooling the work at that position after the pressurization / heating of the work is completed can be provided. Thereby, it is not necessary to separately provide a cooling space in a later step.

The cooling element is constituted by, for example, a gas blowing device. Also, the cooling element can be configured using a dummy material. In this case, a water pipe is provided in the dummy material, and the long conductor / insulator can be cooled by passing water through the water pipe. As described above, by using the dummy material for cooling, it is possible to suppress an increase in parts dedicated to cooling, and to increase the cooling efficiency (time reduction) by cooling with water. in this case,
It is desirable that the water pipe is made of a material having a thermal expansion coefficient equivalent to that of the dummy material. This is because the positional deviation between the water pipe and the dummy material can be reduced during heating and cooling.

In the above configuration, a plurality of pairs of long conductors and insulators are intended, and the heating element is formed by electrically connecting a plurality of long conductors forming the pair in series with each other. Can be performed. Although the cost of the power supply mainly depends on the current value, in this configuration, it is possible to use the same current output device as the current that heats one long conductor simply by increasing the voltage of the power supply, thereby reducing the power supply. Can be configured at low cost. In this case, a pair of two dummy materials is provided outside the long conductor and the insulator, and the heating element is a device for electrically heating the pair of dummy materials by electrically joining them in series. Desirably.

In the above configuration, the dummy member can be attached to the pressing mechanism. In this case, the dummy material is
The up-and-down mechanism moves up and down at the same time as the pressing mechanism, and the work is pressed by the pressing mechanism from both sides. By attaching the dummy material to the pressing mechanism in this way, the setup for setting the dummy material for each pressurization and heating can be omitted.

The present invention has been completed based on the above idea.

That is, the insulator sticking apparatus according to the first aspect of the present invention is to heat the long conductor and the insulator which are overlapped with each other via the adhesive at a predetermined work position under pressure and mutually. A device for attaching the insulator on the elongated conductor via the adhesive, wherein the plurality of pressurizations are applied in a direction in which the elongated conductor and the insulator are overlapped with each other at a plurality of positions in a longitudinal direction thereof. A mechanism, a heating element for heating the long conductor and the insulator under pressure by the plurality of pressure mechanisms, and when the long conductor and the insulator are heated by the heating element and expand and expand in the longitudinal direction. And a support member for supporting the plurality of pressing mechanisms movably in the longitudinal direction in accordance with the elongation.

According to a second aspect of the present invention, in the first aspect of the invention, the supporting member is arranged in parallel with the longitudinal direction above the long conductor and the insulator disposed at the working position. And a plurality of link mechanisms joined at a plurality of positions in the longitudinal direction of the beam and supporting the plurality of pressurizing mechanisms in a hanging state.

The invention according to claim 3 is the invention according to claim 2, further comprising a work table on which the long conductor and the insulator are placed as a work at the work position, wherein the support member includes the beam and the plurality of beams. An up-down mechanism for vertically moving the plurality of pressurizing mechanisms via a link mechanism, wherein the work table moves the work to the work table while the up-down mechanism retracts the plurality of pressurizing mechanisms upward; And a mechanism for moving to a preparatory area, a pressurizing / heating area, and a stock area preset at different positions in the horizontal direction.

According to a fourth aspect of the present invention, in the second aspect of the invention, the long conductor is made of a material having a linear thermal expansion coefficient equivalent to that of the long conductor, and is disposed on both sides of the work when the work is pressurized and heated. The plurality of pressurizing mechanisms press the work through the dummy materials disposed at both ends of the work, and the heating element includes a pressurizing mechanism by the plurality of pressurizing mechanisms. The work and the dummy material are simultaneously heated under pressure, whereby the dummy material is stretched to the same length together with the long conductor and the insulator forming the work.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, there is provided a cooling element for cooling the work at a predetermined position after pressurizing and heating the work, and the cooling element is provided in the dummy material. A water pipe is provided, and the water pipe cools a long conductor and an insulator constituting the work with water passed through the water pipe.

According to a sixth aspect of the present invention, in the second aspect of the present invention, the plurality of pressurizing mechanisms include a casing having an opening through which at least the work placed on the worktable can be fitted from above. A pressing member that presses the work fitted into the opening of the casing against the inner wall of the opening and pressurizes the work; the pressing member includes a heat-resistant member on at least the work side; Further, it has a sliding characteristic capable of absorbing a thermal expansion difference generated in the longitudinal direction between the work and the inner wall of the opening of the casing.

According to a seventh aspect of the present invention, in the second aspect of the present invention, the work is formed by stacking a plurality of long conductors and insulators forming a pair, and the heating element is
An electric heating device for performing electric heating with the plurality of long conductors electrically connected in series is provided.

[0034]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an insulator sticking apparatus according to the present invention; FIG. This embodiment is applied to an apparatus for attaching an insulator to a rotor coil material of a large generator via an adhesive.

Here, in the case of a large generator, the rotor coil is provided with holes and grooves for cooling. However, since these holes and grooves have a complicated shape, after the coil is wound, It cannot be processed, and therefore, a hole or groove is formed in a linear material before winding, and the end of the material is bent after this processing (hereinafter referred to as “half coil”).
One to several tens of coils are prepared, and their end portions are sequentially joined in series to form one coil.

In this embodiment, a half coil prepared in the manufacturing process of such a rotor coil, for example, a linearly extending body and a shoulder formed by bending the longitudinal end thereof. Laminating a long conductor such as copper in a substantially U-shape and an insulator such as glass-fiber-filled epoxy resin that is attached to it with an adhesive such as varnish, both of which are alternately stacked in the width direction. A body (see FIGS. 2 and 3 (b) described later) is a work (work target) OB.

The insulator bonding apparatus shown in FIG. 1 uses the long conductor OB1 as the half coil and the insulator OB.
2 that can support the work OB composed of the work 2 in a state where the arm of the shoulder is downward, and a plurality of positions in the longitudinal direction of the body relative to the work OB supported by the work table 1 And a heating element 3 for heating the work OB during the pressing by the pressing mechanisms 2... 2 through a dummy material DM prepared in advance in the width direction. When the work OB is thermally expanded in the longitudinal direction by the heating element 3, the respective pressurizing mechanisms 2... 2 under pressure are moved in the longitudinal direction of the work OB so as to eliminate the influence of the thermal expansion of the work OB. And a supporting member SP movably supporting the supporting member SP.

The support member SP includes a plurality of link mechanisms 4 for supporting the plurality of pressurizing mechanisms 2 in a hanging state from above.
4, a beam 5 as a common support for holding the link mechanisms 4... 4, the beam 5 and the link mechanisms 4
And a vertical mechanism 6 for facilitating the movement of the work OB in the front-rear direction before and after pressurizing and heating by moving each of the pressurizing mechanisms 2 up and down via. The lifting mechanism 6 causes the beam 5, each link mechanism 4...
FIG. 2 shows a state in which... 2 are integrally moved upward (evacuated).

Each of the plurality of link mechanisms 4... 4 includes an upper bracket 22 a and an upper bracket 22 a fixed to the upper surface of the plurality of pressing mechanisms 2. A lower bracket 22b and a link 24 that mechanically couples between the two brackets 22a, 22b via the upper pin 23a and the lower pin 23b so as to enable the pendulum movement about the respective pins 23a, 23b.
2 can be freely moved in the horizontal direction (substantially horizontal direction) with respect to the beam 5 via these elements. The link hole on the side of the upper pin 23a is a long hole, so that a deviation in the vertical direction can be absorbed.

As shown in FIG. 4, a cooling air blowing nozzle 7 is provided on the beam 5 as a part of the cooling element of the present invention. Cooling is possible at that position.

The work table 1 has a roller 11 having a roller 11 which can move in the longitudinal direction according to the size of the work OB along a rail 10 previously arranged on a floor on which the apparatus is installed as shown in FIG. 12, a work mounting table 15 on which a Teflon plate 14 for heat insulation and electrical insulation is mounted on the trolley 12 via a leg 13 having a predetermined height, and a work mounting table 15 mounted between the pedestal 15 and the trolley 12. And a moving mechanism 16. Since the Teflon plate 14 has a small friction, there is an advantage that the work OB can be more easily aligned on the plate 14.

As shown in FIG. 4, the moving mechanism 16 has a work receiver 1 having a recess having a predetermined size, into which the work OB placed on the work mounting table 15 can be fitted from the bottom side.
7, an air cylinder 18 that lifts the work OB received in the work receiver 17 upward through the work receiver 17 and moves the work OB up and down freely from that state, and the air cylinder 18 and the support thereof. A plurality of setting areas having different horizontal positions in the front-back direction (see the two-dot chain line arrow in FIG. 4) on the work mounting table 15 integrally with the work OB, ie, the preparation area A1 and the pressurization / heating area A
2 and an actuator 19 such as a linear motion mechanism for laterally moving in parallel between the stock areas A3.

Each of the plurality of pressurizing mechanisms 2.
As shown in FIGS. 6A to 6C and FIG. 6, the work OB placed on the worktable 1 is opposed to the work OB in a direction substantially orthogonal to the longitudinal direction (the direction in which the long conductor and the insulator are overlapped). A substantially U-shaped casing 20 composed of a front plate 20a and a rear plate 20b, an upper plate 20c connecting the two plates 20a and 20b, and a piston (a pressing member) ) 21 having a plurality of (three for one pressurizing mechanism 2 in FIG. 5 (b)) 21a, and driving each of the air cylinders 21. Head side and front side plate 20 in casing 20
The work OB is sandwiched and pressed between the inside of the work a and the inner wall side of the work a through a Teflon material TF (a heat-resistant member having a slip) and a dummy material DM, whereby the work OB is pressed.

Here, when the Teflon material TF is not provided, the dummy material DM shifts with respect to the casing 20 when the work OB is heated, but the Teflon material T is provided outside the dummy material DM.
When F is arranged, the dummy material DM is the Teflon material TF
The gap between the casing 20 and the casing 20 can be absorbed by sliding.

Further, a cooling pipe 8 is arranged in the dummy material DM as a cooling element different from the cooling air blowing nozzle 7. Can be cooled at that position.

The heating element 3 includes a work O as shown in FIG.
A state in which ends of the long conductors OB1... OB1 in the laminated body forming B are electrically connected in series via a plurality of conducting plates 29 (see circles 1 to 4 in FIG. 7). And a long conductor heating power supply 30a for controlling the heating temperature of the long conductor heating power supply 30a to a set value.

As shown in FIG. 6, the heating element 3 includes two dummy materials DM arranged on both sides of the work OB,
A state in which DMs are electrically connected in series (circled number 1 in FIG. 7)
Heating power supply 31 for dummy material for energizing and heating in (1) and (12).
a, and a dummy material temperature control panel 31b for controlling the heating temperature of the dummy material heating power supply 31 under the condition of a temperature rise curve equivalent to that of a long conductor.

The two heating power supplies 30a and 31a are composed of, for example, a DC low-voltage and large-current output heating power supply (actual specification level: voltage V to several tens of volts, current 1000 A). Since the cost associated with the power supply has a small voltage dependence and is almost determined by the current value, there is an advantage that by connecting the long conductor OB1 and the dummy material DM in series, it is possible to introduce the equipment at low cost with little equipment.

The two temperature control panels 30b and 31b are
When the dummy material DM is made of the same material (for example, copper) as the long conductor OB1, the temperature is increased under the condition that the temperature gradients are equal to each other at the time of each heating, so that both the workpiece OB and the dummy material DM are heated. The heating temperature is controlled so that the thermal expansion amounts are equal. The heating temperature is set such that the long conductor O of the work OB is set before it is placed in the preparation area A1 (see FIG.
The temperature is set to a temperature range necessary for fixing the adhesive (varnish) applied to the B1 side, and thus varies depending on the type of the varnish, but is usually in the range of 100 ° C to 200 ° C.

Here, the overall operation of this embodiment will be described.

First, the work OB is placed in the preparation area A on the installation table 1.
1 and the moving mechanism 16 of the mounting table 1 is driven in a state where the pressing mechanisms 2... 2 are retracted upward through the beam 5 and the link mechanisms 4.
Is moved to the heating / heating area A2 (see FIG. 4).

The work OB is moved by the actuator 19 in a state where the work OB is lifted by the air cylinder 18 of the moving mechanism 16 via the work receiver 17 and is integrally moved by the actuator 19 from the preparation area A1 to the heating / heating area A2. To the air cylinder 18 at the position of A2.
The work OB is lowered and installed.

Next, each of the pressurizing mechanisms 2...
2 to the work OB pressing position
Work OB and dummy material DM and their respective heating power supplies 30
a and 31a are electrically connected to each other, and in this state, pressurization by the pressurizing mechanisms 2 and 2 and heating by the heating element 3 are started.

While the work OB is pressurized and heated, the work OB extends in the longitudinal direction due to thermal expansion. However, the amount of thermal expansion of each of the pressing mechanisms 2... Move in the direction of the arrow shown in FIG.
Can follow the growth of For example, if the length of the work OB is 10
m, it extends about 10 mm horizontally under the condition of a heating temperature of 150 ° C. If the distance between the upper pin 23a and the lower pin 23b of each link mechanism 4 is 100 mm, each pressing mechanism 2. Can be moved substantially horizontally.

When the pressurization / heating of the work OB is completed, the work OB is cooled at the position of the pressurization / heating area A1 on the installation table 1. The cooling of the work OB not only utilizes the heat radiation to the surroundings, but also blows air from the cooling air blowing nozzle 7 and hits the work OB,
This is performed by passing water through the cooling pipe 8 in the dummy material DM.

When the cooling of the work OB is completed, each pressurizing mechanism 2... 2 is moved upward by the vertical mechanism 6, and the moving mechanism 16 is driven in this state to move the cooled work OB to the stock area A 3. Move. Concurrently, by placing the next work OB in the preparation area A1, the same steps as described above are sequentially and repeatedly performed.

Therefore, according to this embodiment, the work to which the adhesive has been applied is pressurized by the pressurizing mechanism joined to the beam (common support member), and at the same time, heated by the heating element. Since each of the pressing mechanisms is configured to move without difficulty following the thermal expansion, the pressing and heating process of the work can be greatly simplified as compared with the conventional example. Further, the following advantageous effects can be obtained as compared with the conventional example.

1) The table on which the work is placed is divided into a preparation area, a pressurizing / heating area, and a stock area according to each process.
Since the movement of the work between the regions is performed by the moving mechanism, the setup of the insulator attaching step is further facilitated than in the conventional example, and the work can be moved efficiently. 2) By placing a dummy material on the outside of the insulator, the insulator can be prevented from being displaced during thermal expansion, whereby the productivity can be further improved. 3) By electrically heating the work and the dummy material, the work can be heated in a short time even when the work is made of a combination of a number of long conductors and insulators, and the control can be more easily performed. 4) By performing forced cooling at the pressurized position, this step can be repeatedly performed with a short lead time.

In this embodiment, a heating means by energization heating is employed as a heating element. However, the present invention is not limited to this. For example, a heating means such as a plate-type electric heater can be used. is there.

Further, in this embodiment, the case where the long conductor is a half coil is described as an example. However, the present invention is not limited to this, and the step of attaching an insulator to a long conductor other than the half coil is performed. Yes, of course, it can be applied.

Further, in this embodiment, the dummy member is provided separately from the pressurizing mechanism. However, the present invention is not limited to this, and the two members may be integrally formed. This example is shown in FIG.

FIG. 8 shows a casing 20 for sandwiching the work OB.
An example of a pressing mechanism in which a dummy material DM is attached to each of the front plate 20a side and the head side of the piston 21a via a plurality of claw members 40. In this case, the dummy material DM can be moved up and down integrally by driving the vertical mechanism together with the pressing mechanism via the claw-shaped member 40.

[0063]

As described above, according to the present invention,
Equipped with a plurality of pressure mechanisms, heating elements, and support members, and when the heating element heats the long conductor and the insulator and expands and expands in the longitudinal direction, a plurality of pressure mechanisms are shared according to the elongation The support members are movably supported in the longitudinal direction, so when pressing and heating the work to which the adhesive has been applied, each pressing mechanism joined to the support member is used to reduce the thermal expansion of the long conductor and insulator. Therefore, the pressing and heating steps of the work can be greatly simplified as compared with the conventional example.

In the above configuration, when a work table for placing a work having a divided moving area and a moving mechanism for moving the work to the moving area are further added, the setup of the above process can be further facilitated. There is also an advantage that it can be moved more easily.

In the above structure, when a dummy material is further arranged outside the insulator, the insulator can be prevented from being displaced by the dummy material when the work thermally expands, thereby further improving the productivity. Is also possible.

In the above configuration, when the work and the dummy material are electrically heated, the work can be heated in a short time even when the work is made of a combination of a number of long conductors and insulators, and the control can be easily performed. become.

In the above configuration, when the work is forcibly cooled at the pressurized position, the cycle time from heating to cooling can be further shortened, and this has the advantage that this process can be repeatedly performed with a shorter lead time. is there.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an overall configuration of an insulator attaching apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic front view illustrating a state in which each pressing mechanism is lifted by an up-down mechanism.

FIGS. 3A and 3B are diagrams illustrating a main configuration of a link mechanism, and FIG.
Is a schematic front view, and (b) is a schematic side view.

FIG. 4 is a schematic diagram when the work table is viewed along the line AA in FIG. 1;

FIGS. 5A and 5B are diagrams illustrating a configuration of a main part of a pressing mechanism, wherein FIG. 5A is a schematic front view, FIG. 5B is a schematic plan view taken along line BB in FIG. Is a schematic side view.

FIG. 6 is a schematic side view illustrating details of a pressing mechanism.

FIG. 7 is a schematic power supply connection diagram for explaining a main configuration of a heating element using electric heating.

FIG. 8 is a schematic side view illustrating a case where a dummy member is integrally attached to a pressing mechanism via a claw-shaped member.

[Explanation of symbols]

 OB Work OB1 Long conductor OB2 Insulator DM Dummy material TF Teflon plate 1 Workbench A1 Preparation area A2 Pressurization / heating area A3 Stock area 2 Pressurization mechanism SP Support member 4 Link mechanism 5 Beam 6 Vertical mechanism 7 Cooling air blowing nozzle Reference Signs List 8 cooling pipe 10 rail 11 roller 12 cart 13 leg 14 teflon plate 15 work mounting base 16 moving mechanism 17 work receiver 18 air cylinder 19 actuator 20 casing 20a front side plate 20b rear side plate 20c upper plate 21 air cylinder 22a upper bracket 22b lower Side bracket 23a Upper pin 23b Lower pin 24 Link 29 Conducting plate 30a Heating power supply for long conductor 30b Temperature control panel for long conductor 31a Heating power supply for dummy material 31b Temperature control panel for dummy material 40 Claw-shaped member

Claims (8)

[Claims] 1. A long work and an insulator which are overlapped with each other via an adhesive at a predetermined work position are heated under pressure to each other, whereby the insulator is placed on the elongated conductor via the adhesive. A device for attaching, a plurality of pressing mechanisms for pressing the long conductor and the insulator in a direction of overlapping each other at a plurality of positions in the longitudinal direction,
A heating element that heats the elongated conductor and the insulator under pressure by the plurality of pressure mechanisms; and a heating element that heats the elongated conductor and the insulator to expand and expand in the longitudinal direction. And a support member for supporting the plurality of pressurizing mechanisms so as to be movable in the longitudinal direction. 2. The beam according to claim 1, wherein the supporting member is arranged above the long conductor and the insulator disposed at the working position and in parallel with the longitudinal direction thereof, and the longitudinal direction of the beam. And a plurality of link mechanisms that are joined at a plurality of positions in the direction and support the plurality of pressure mechanisms in a hanging state. 3. The invention according to claim 2, further comprising a work table on which the elongated conductor and the insulator are placed as a work at the work position, wherein the support member is provided with the beam via the beam and a plurality of link mechanisms. A vertical mechanism for vertically moving the plurality of pressurizing mechanisms, wherein the work table is different from the work table in a horizontal direction within the work table while the plurality of pressurizing mechanisms are retracted upward. An insulator pasting device, comprising: a mechanism for moving to a preparation area, a pressurization / heating area, and a stock area each of which is set in advance at a position. 4. The invention according to claim 2, further comprising a dummy material made of a material having a linear thermal expansion coefficient equivalent to that of the elongated conductor, and disposed on both sides of the work when the work is pressurized and heated. The plurality of pressing mechanisms press the work via the dummy members disposed on both ends of the work, and the heating element includes the work and the dummy under pressure by the plurality of pressing mechanisms. To heat the materials at the same time,
Thereby, the dummy material extends to the same length together with the long conductor and the insulator that constitute the work. 5. The invention according to claim 4, further comprising: a cooling element for cooling the work at a predetermined position after pressurizing and heating the work, wherein the cooling element includes a water pipe arranged in the dummy material. The insulator sticking apparatus, wherein the water pipe cools a long conductor and an insulator forming the work by water passed through the water pipe. 6. The invention according to claim 2, wherein the plurality of pressurizing mechanisms include a casing having an opening through which at least a work placed on the worktable can be fitted from above, and a casing having an opening in the casing. A pressing member that presses the fitted work against the inner wall of the opening and pressurizes the work, wherein the pressing member includes a heat-resistant member at least on the work side, and the heat-resistant member includes the work and the casing during heating of the work. Characterized in that it has a slip characteristic capable of absorbing a difference in thermal expansion generated in the longitudinal direction between the inner wall and the opening. 7. The invention according to claim 2, wherein the work is formed by stacking a plurality of long conductors and insulators forming a pair, and the heating element electrically connects the plurality of long conductors. An insulator pasting device, comprising: an electric heating device that performs electric heating while being connected in series. 8. A method for attaching an insulator to a rotor coil, comprising using the insulator attaching apparatus according to claim 1.