JPH04273111A - Coil end treatment apparatus - Google Patents

Abstract

PURPOSE:To simple execute a series of treatment operations for coil ends. CONSTITUTION:A plurality of coil holding units 3 are arranged so as to be parallel with chains 26a, 26b; the chains 26a, 26b are made to travel by using a driving motor 28. Coils C are hooked at hooking pins 37 at the coil holding units 3. Ends at the individual coils C are treated sequentially by using a coil end cutting device 4, an insulating film stripping device 5, a cleaning and drying device, a flux applying device and a preliminary solder applying device while they are being transferred.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil end processing device, and more particularly to a coil end processing device that can easily perform coil end processing operations such as cutting off a coil end and peeling off an insulating coating.

0002

[Prior Art] Processing work for coil terminals usually involves: - cutting the coil terminal to a predetermined length, - peeling off the insulation coating from the cut coil terminal, and - applying flux to the coil terminal from which the insulation coating has been peeled off. There are four steps: 1) attaching solder to the part of the coil terminal where flux has been applied;

Conventionally, coil terminals have been processed by sequentially performing the steps (1) to (4) using a single-function device that performs only one step.

[0004] Furthermore, as a method for peeling off the insulating coating from the coil terminal described in (2) above, the following two methods are conventionally known. One is a method of chemically stripping the insulating coating by immersing the coil terminal in a stripping solution, as disclosed in, for example, Japanese Patent Laid-Open No. 58-215905 and Japanese Patent Laid-Open No. 1-61817. .

[0005] The other one is, for example, Japanese Patent Application Laid-open No. 1340-1983.
As disclosed in Japanese Patent No. 9 and Japanese Unexamined Patent Publication No. 62-144514, the end of the coil is rubbed with a rotating grindstone or brush to mechanically peel off the insulating coating.

[0006]

[Problems to be Solved by the Invention] Since the conventional coil terminal processing method described above uses a plurality of single-function devices, it is necessary to move the coil between each single-function device after one task is completed. There are problems in that it is necessary and complicated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a coil end processing device which eliminates the need for coil moving work, which was conventionally required every time each work is completed, and which can easily perform a series of coil end processing work. There is a particular thing.

[0008]

[Means for Solving the Problems] A coil terminal processing device of the present invention includes a coil holding means, a transfer means for transferring the coil holding means, and processing the terminal of the coil held by the coil holding means. A coil end processing means provided along the transfer means, and a control means for controlling the coil holding means to hold and transfer a plurality of coils and to process the ends of the coils in parallel. The coil terminal processing means includes a cutting section for cutting the coil terminal into a predetermined length, a peeling section for stripping the insulation coating of the coil terminal cut into the predetermined length, and a coil terminal from which the insulation coating has been peeled off. It includes a cleaning section for cleaning, a drying section for drying the cleaned coil terminals, a flux application section for applying flux to the dried coil terminals, and a soldering section for applying solder to the fluxed coil terminals. Further, at least the cutting section, the peeling section, and the cleaning section are characterized in that the processing length of the coil end can be adjusted by changing the amount of displacement of the coil.

[0009]

[Function] In the coil terminal processing device of the present invention, the operations of cutting the coil terminals, peeling off the insulation coating, cleaning, drying, fluxing, and soldering are carried out in parallel while a plurality of coils are transferred by the transfer means. This series of operations is automatically performed simply by holding the coil in the coil holding means.

[0010] Therefore, the operator only has to hold the coil in the coil holding means, which simplifies the process of processing the coil terminals.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that this invention is not limited to this.

(Structure) FIG. 1 is a perspective view of the main parts of a coil end processing device according to an embodiment of the present invention, and FIG. 2 is a plan view showing the arrangement of each component of the coil end processing device.

The coil terminal processing device 1 includes a coil transfer device 2, a plurality of coil holding units 3 that are transferred around the coil transfer device 2, and a coil terminal processing device 1 that cuts the coil terminals into a predetermined length on a support base 10. a cutting device 4 that removes the insulation coating from the coil terminal, a peeling device 5 that peels off the insulation coating from the coil terminal, and a cleaning/drying device 6 that cleans and dries the coil terminal from which the insulation coating has been peeled off.
, a flux application section 7 that applies flux to the coil terminal after cleaning and drying, a preliminary solder application section 8 that applies preliminary solder to the flux-adhered portion of the coil terminal, and a control device 9 that controls the whole. We are prepared.

The above-mentioned cutting device 4, peeling device 5, cleaning/drying device 6, flux adhesion section 7 and preliminary solder adhesion section 8
constitutes a coil terminal processing means.

The coil transfer device 2 includes two chains 26a and 26b arranged vertically and spaced apart between a lower plate 22 and an upper plate 23 provided on a table 21. Both chains 26a and 26b are meshed with and supported by sprockets 25a and 25b at four locations, respectively, and run rectangularly. Since the sprockets 25a and 25b are connected to each other by the shaft 24, both chains 26a,
26b run synchronously. Both chains 26a, 26b
A plurality of coil holding units 3 are locked at equal intervals. Note that the number of coil holding units 3 is preferably the same as the number of devices that perform each process.

A drive motor 28 is provided on the upper plate 23 via a motor stand 27. The drive motor 28 rotationally drives the sprockets 25a and 25b via a transmission shaft 29. In this way, the plurality of coil holding units 3 latched to the chains 26a, 26b are transferred so as to draw a rectangular shape.

Endless belts can also be used instead of chains 26a, 26b.

As shown in detail in FIG. 3, the coil holding unit 3 has a guide 35 fixed to the front lower part of the support plate 31, and two rods 33 are inserted into the guide 35 in the vertical direction. There is. A pressing plate 32 is attached to the upper end of each rod 33.
A bracket 36 is connected to the lower end. Further, a compression spring 34 is fitted around each rod 33 between the pressing plate 32 and the guide 35. Two locking pins 37 for locking the air-core coil C are attached to the front surface of the bracket 36.

Since the pressing plate 32 is urged upward by the compression spring 34, as shown by the solid line in FIG.
The pressing plate 32, the rod 33, and the bracket 36 are normally located at a position where the bracket 36 abuts the guide 35. When the press plate 32 is pressed downward by an air cylinder 57, which will be described later, etc., the press plate 32, rod 33, and bracket 36 descend as shown by the dashed line in FIG.

The coil holding unit 3 also includes a support plate 31.
It is locked to the chains 26a, 26b on the back side of the handle, and moves as the chains 26a, 26b run. Further, it is guided to move stably by a guide (not shown).

When the coil holding unit 3 holds the air-core coil C, as shown in FIG. C
Leave 0 hanging down.

The pitch between the two locking pins 37 is set to be slightly larger than the maximum value of the through hole of the air-core coil C, so that the air-core coil C is pushed slightly outward when locked. is preferred. This has the advantage that the air-core coil C can be elastically deformed and stably held.

As shown in FIG. 1, the cutting device 4 includes two air cylinders 43 arranged opposite to each other on a support plate 42 supported horizontally by two support legs 41. There is. A cutter 44 is attached to each cylinder rod of both air cylinders 43, and the blade portions of both cutters 44 intersect when both cylinder rods are extended. Therefore, the terminal C0 of the air core coil C is
Terminal C0 can be disconnected by operating the air cylinder 43 between 4 and 4.

By changing the installation height of the cutting device 4, the cutting length of the terminal C0 can be easily changed.

The peeling device 5, as shown in detail in FIG.
It has a stripping liquid tank 51 containing a stripping liquid. Stripping liquid L
are housed in an inner wall 52 to which heaters 53a and 53b for heating the stripping liquid L are attached. Stripping liquid tank 51
An air cylinder 54 for raising and lowering the bucket is attached to the outer surface of the bucket. A bucket 56 is attached to the tip of the cylinder rod of the air cylinder 54 via a connecting member 55. The bucket 56 is located approximately at the center of the stripping liquid tank 51, and is moved up and down by the operation of the air cylinder 56 to be immersed in the stripping liquid L or exposed upward. When the bucket 56 moves to the highest level, at least its upper part is exposed from the stripping liquid L, and the stripping liquid L is filled therein.

The peeling device 5 further includes an air cylinder 57 above the coil holding unit 3 for lowering the coil. The air cylinder 57 is connected to the upper plate 2 of the coil transfer device 22.
3, and the stroke can be adjusted.

When the bucket 56 rises to a predetermined position, the air cylinder 57 presses the pressing plate 32 of the coil holding unit 3 via the pressing member 58 attached to the tip of the cylinder rod, and lowers the air core coil C. , bucket 5
The coil terminal C0 is immersed in the stripping liquid L in 6 for a predetermined time. In this way, the insulation coating of the coil terminal C0 is peeled off by a predetermined length.

By adjusting the stroke of the air cylinder 57, the descending distance of the coil C, that is, the coil terminal C
The immersion length can be adjusted.

In this embodiment, the insulating coating of the coil terminal C0 is stripped by dipping it in a stripping solution, so even if the wire constituting the coil C is thin, it can be removed by a mechanical method using a rotating brush or the like. There is no risk of disconnection like there is. Further, since the stripping operation is automatically performed while the coil C is held and transferred by the coil holding unit 3, there is no danger that the dangerous stripping liquid will come into contact with the operator, making it safe.

The cleaning/drying device 6 includes a coil transfer device 22
A stroke-adjustable air cylinder 61 (see FIG. 1) fixed to the upper plate 23, a water tank equipped with an ultrasonic transmitter, a compressed air blowing nozzle, and a hot air generator blowing out hot air (all not shown). We are prepared. The air cylinder 61 is the same as the air cylinder 57 for lowering the coil of the peeling device 5.

The air cylinder 61 presses the pressing plate 32 to lower the coil holding unit 3 to a predetermined position, and immerses the terminal C0 of the air-core coil C held in the water tank for a predetermined time. During the immersion, the coil terminal C0 is cleaned by ultrasonic waves.

When the ultrasonic cleaning is completed, the air cylinder 6
1 is stopped, and the elastic force of the compression spring 34 causes the coil C to return to its original height. After that, air cylinder 6
1, the coil C is vibrated up and down, and in this state, compressed air is applied to the coil terminal C0 from the blowing nozzle to drain water. Furthermore, the coil terminal C is
Blow hot air onto 0 and dry.

The flux adhering device 7 has a flux tank which is the same as the stripping liquid tank 51 of the stripping device 5 and contains a flux liquid instead of the stripping liquid. The other configurations are the same as the peeling device 5 described above. The coil lowering air cylinder is operated to lower the air-core coil C to a predetermined position, and the coil terminal C0 is immersed in the flux liquid in the raised bucket for a predetermined time. In this way, flux is applied to the part of the coil terminal C0 from which the insulation coating has been peeled off.

Preliminary solder adhesion device 8 has the same structure as flux adhesion device 7 described above, except that a solder tank containing molten solder is provided instead of flux liquid. An air cylinder for lowering the coil is operated to lower the air-core coil C to a predetermined position, and the coil terminal C0 is immersed in the solder in the raised bucket for a predetermined time. In this way, coil terminal C
Attach preliminary solder to 0.

The control device 9 is composed of a sequence controller, and controls the drive motor 28, air cylinders 54, 57, 61, etc. based on signals sent from a positioning sensor and a switch (not shown). When each coil holding unit 3 reaches a predetermined position in the cutting device 3, the peeling device 4, etc., the control device 9 stops the transfer thereof, and then performs a cutting operation, a peeling operation, etc. in the cutting device 3, the peeling device 4, etc. , and when this is completed, the next coil holding unit 3 is transferred until it reaches a predetermined position. Therefore, each device such as the cutting device 3 processes the coil terminal C0 in parallel.

FIG. 5 is a side view showing a coil removal device used together with the coil end processing device 1. As shown in FIG.

The coil removal device 11 is equipped with an air cylinder 111 for moving back and forth fixed to a stand (not shown), and a connecting member 114 is attached to the tip of the cylinder rod.
An air cylinder 116 for vertical movement is attached via 115. A guide 113 is attached to the flange 112 of the air cylinder 111 for forward and backward movement. A guide 117 is attached to the connecting member 115. A support member 118 having a locking pawl 119 is attached to the tip of the cylinder rod of the air cylinder 116 for vertical movement.

[0038] The coil removal device 11 also includes a stand 120.
A magazine rod 121 that extends horizontally and has one end fixed to the
It is equipped with The height of the magazine rod 121 is approximately the same as the locking pin 37 of the coil holding unit 3. The magazine rod 121 holds the coil C that has been removed from the coil holding unit 3. The coil C is held by inserting the magazine rod 121 into its through hole.

When removing the coil C from the coil holding unit 3, operate the air cylinder 111 for moving back and forth to bring the locking pawl 119 close to the coil holding unit 3 as shown by the solid line in FIG. Thereafter, the vertically moving air cylinder 116 is operated to lower the locking pawl 119 to the position shown by the dashed line in FIG. Therefore, when the cylinder rod is retracted by operating the air cylinder 111 for forward and backward movement, the coil C is moved from the locking pin 37 onto the magazine rod 121 by the locking claw 119. When the number of coils C reaches a predetermined number, they are removed from the magazine rod 121.

The coil removing device 11 is preferably provided immediately before the coil holding unit 3 is sent to the cutting device 4.

Note that this coil removal device 11 has a plurality of coils C hung on the magazine rod 121 in advance, and when each coil holding unit 3 comes to a predetermined position, moves the coils C to the side of the coil holding unit 3 in turn. By doing so, it can also be used to lock and hold the coil C. Further, the coil C may be removed and locked manually without using the coil removal device 11.

(Operation) Next, the operation of the coil terminal processing device 1 having the above configuration will be explained.

First, the air-core coil C is locked to the locking pin 37 of the coil holding unit 3. This work is performed manually or by using the coil removal device 11 when the coil holding unit 3 is on the control device 9 side. The air-core coil C is held in a manner as shown in FIG.

The coil holding unit 3 holding the air-core coil C is transferred in the direction of the arrow in FIG. 3 transfer is interrupted. after that,
The pressing plate 32 of the coil holding unit 3 is pressed by an air cylinder (not shown), and the coil C is lowered to a predetermined position. Then, both air cylinders 43 are activated, and the cutter 44 cuts the coil terminal C0 to a predetermined length.

When the cutting is completed, the pressing by the air cylinder is stopped, and the elastic force of the compression spring 34 causes the coil C to rise and return to its original position.

Then, the transfer is restarted, and the coil holding unit 3 moves again in the direction of the arrow in FIG.

[0047] When the coil holding unit 3 reaches a predetermined position on the peeling device 5, the transfer is interrupted. Then, the air cylinder 54 was activated and the bucket 5 buried in the stripping liquid L was removed.
6 is lifted to a predetermined position, while the coil C is lowered to a predetermined position by the operation of the air cylinder 57. In this way, the coil terminal C0 is immersed in the stripping liquid L for a predetermined length for a predetermined time, and the insulating coating of the coil terminal C0 is stripped off.

When the peeling is completed, the air cylinder 57 is activated again to return the coil C to its original position, while the air cylinder 54 is activated again to lower the bucket 56 to its original position.

Subsequently, when the coil holding unit 3 reaches a predetermined position in the washing/drying device 6, the transfer is interrupted in the same manner as above, and the coil C is lowered by the air cylinder 61, and the coil terminal C0 is placed in the water tank. Soak in water for a specified period of time and perform ultrasonic cleaning. When cleaning is completed, the coil C is pulled up and vibrated, compressed air is blown onto the coil terminal C0 to remove water droplets, and hot air is blown onto the coil terminal C0 to dry it.

[0050] When the cleaning and drying are completed, the coil holding unit 3 is transferred to the flux applying device 7. In the flux adhesion device 7, in the same manner as in the peeling device 5, the coil C is lowered and immersed in the coil terminal C0 flux liquid for a predetermined time to adhere flux.

When the flux attachment is completed, the coil holding unit 3 is transferred to the preliminary solder attachment device 8, and preliminary solder is attached to the coil terminal C0 in the same manner.

[0052] When the above steps are completed, the coil is removed by the above-mentioned coil removing device 11 or manually.
The coil C locked to the coil holding unit 3 is removed. The coil removal work is performed before the position where the coil C is locked and held.

[0053]

[Effects of the Invention] According to the coil end processing device of the present invention, there is no need for the coil moving work that was conventionally required every time each work is completed, and a series of coil end processing work can be easily performed. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of a coil end processing device according to an embodiment of the present invention.

FIG. 2 is an explanatory plan view showing the arrangement of each component of the coil terminal processing device.

FIG. 3 shows a coil holding unit of the same coil end processing device, with (a) being a side view and (b) being a front view.

FIG. 4 is an explanatory side view showing a peeling device of the coil end processing device.

FIG. 5 is an explanatory side view showing a coil removal device used in the coil end processing device.

[Explanation of symbols]

1 Coil terminal processing device 2 Coil transfer device 3 Coil holding unit 4 Cutting device 5 Peeling device 6　Washing/drying equipment 7 Flux adhesion device 8 Preliminary solder attachment device 9 Control device 11 Coil removal device 21 units 24 Rotation axis 25a, 25b sprocket 26a, 26b Chain 28 Drive motor 31 Support plate 32 Press plate 33 Rod 34 Compression spring 35 Guide 36 Bracket 37 Locking pin C Air core coil C0　Air core coil terminal

Claims (1)

[Claims] 1. Coil holding means, transfer means for transferring the coil holding means, and coil end processing means provided along the transfer means for processing the ends of the coil held by the coil holding means. and control means for controlling the coil holding means to hold and transfer a plurality of coils and to process the terminals of the coils in parallel, and the coil terminal processing means for controlling the coil terminals to be processed in parallel. a cutting section that cuts the coil to a predetermined length; a peeling section that strips the insulating coating of the coil terminal cut to the predetermined length; a cleaning section that cleans the coil terminal from which the insulating coating has been stripped;
a drying section that dries the cleaned coil terminal; a flux application section that attaches flux to the dried coil terminal;
The coil terminal includes a solder attachment section that attaches solder to the coil terminal to which flux is attached, and further, at least the cutting section, the peeling section, and the cleaning section are configured to change the processing length of the coil terminal by changing the amount of displacement of the coil. A coil terminal processing device characterized by being adjustable.