JPH0750644B2 - Automatic winding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winding machine capable of manufacturing a so-called wound resistor, a heater, etc., which is formed by winding a resistance wire around a cylindrical ceramic body. The present invention relates to an automatic winding machine that can automatically manufacture a highly accurate wire-wound resistor or heater by setting a resistance value or the like.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned wire wound resistor has a winding process of a ceramic body on a winding machine, a wire winding process by rotating a spindle, and a welding of a metal cap fixed to both ends of the body and a wire rod. Many processes such as a process and a cutting process of a wire rod are separated from each other, and each process requires a unique technique, and it is said that it is difficult to automate the process.

Under these circumstances, the accuracy of the resistance value of the wire-wound resistor to be manufactured has an error of 5 to 10%, and the manufacturing speed can be shortened by a skilled worker. Even when the work is performed, the limit is 6 to 7 pieces per minute. Therefore, conventionally, in response to such a request
Therefore, an automatic winding machine 65 as shown in FIG. 4 is proposed.
ing. That is, such an automatic winding machine 65 is
A supply mechanism 66 and a resistance wire winding mechanism 67 are provided. So
Then, the resistance wire winding mechanism 67 includes the base 68 and the base 6
Element holding device 69 provided on 8 and resistance wire welding device
And 70. The body holding device 69 is provided on the base 68.
By the drive unit 71 provided at the end and the drive unit 71
It has a driven element holding part 72. This element
The holding part 72 is a pair of cylindrical body holding bars 7 formed in a tubular shape.
3, 74 and one body holding bar 74 via a rod 75.
And an operating lever 76 that can be moved forward or backward.
And press the element body 86 between the element holding bars 73 and 74.
It is held and rotated by the drive unit 71 in the circumferential direction of the element body.
It is configured to be able to.

Further , the resistance wire welding device 70 has a moving unit.
Knit 87 and electrodes provided on the moving unit 87
77, 78, and the element body 8 is attached to the element holding portion 72.
When 6 is held, the body is moved forward on the rail 79.
86, and as shown in FIG.
Energize to weld the resistance wire 80 to the cap 81
It is configured.

In such a conventional automatic winding machine 65,
As shown in FIG. 6, the element forming the element holding section 72 is
The body-holding bars 73, 74 are each formed in a substantially cylindrical shape,
At its tip, a flat surface portion 83 that can come into contact with both ends of the element body,
83 is formed, and lead wire accommodating grooves 82, 82 are engraved in the axial direction of the element holding bars 73, 74 in a state of being opened to the peripheral surface portion from the tip end portion toward the rear. ing.

Incidentally, as shown in FIG.
Has a cylindrical insulator 85 and caps 81, 81 fixed to both ends of the insulator 85, and lead wires 84, 84 are welded to the caps 81, 81 and protruded therefrom. There is. Therefore, in such a conventional automatic winding machine 65, the element body 86 as described above is attached to the element body holding portion 72.
In order to hold the lead wires 84, 84, the lead wires 84, 84 protruding from the caps 81, 81 capped at both ends of the element body
Is stored in the lead wire storage grooves 82, 82 provided in the body holding bars 73, 74 from the circumferential direction of the body holding bars 73, 74, and in this state, the operation lever 76 is operated. One of the body holding bars 74 is brought closer to the other body holding bar 73, and the caps 81, 8 of the body 86 are
1. The flat portions 83, 83 at the tips of the body holding bars 73, 74
And presses the element body 86 between the element body holding bars 73 and 74 (Japanese Patent Application Laid-Open No. 60-111402).
See) .

A conventional automatic winding machine configured as described above
In the case of 65, the element body 8 on which the resistance wire 80 is to be wound
6 is held in the body holding portion 72 via the human hand each time.
The body 72 must be held by the body holding bars 73, 74.
The work of holding the wire wound resistor is extremely complicated.
There was a drawback that the production efficiency was low.

[0008]

Therefore, the technique of the present invention
Problems were made in view of such conventional defects
However, the technical problem in the automatic winding machine is
A resistance wire can be wound around the element body on which the resistance wire is to be wound.
Automatically feed the position to improve winding resistor manufacturing efficiency
There is to let.

[0009]

[Means for Solving the Problems] Such a technical problem solution
In the present invention for the purpose of determination, a columnar insulator , caps attached to both ends of this insulator, and a cap welded to these caps are provided so as to project in the axial direction of the insulator. The resistance wire is welded to the front end side cap of the element body having the lead wire, the resistance wire is wound around the insulator peripheral surface, and the resistance wire is welded to the rear end side cap to wind the resistance wire around the element body. It was inserted inside an automatic winding machine that fixedly fabricates a winding resistor.
The nozzle mechanism that supplies the resistance wire to the body and the end of the body
Grip the chuck mechanism and supply the element body to the chuck mechanism.
Gripping and fixing mechanism by the shooter mechanism and the chuck mechanism.
Spin that rotates the defined element along the circumferential direction of the element
A dollar mechanism and a capacitor with the above resistance wire attached to both ends of the body.
And a welding electrode mechanism for welding
The tutor mechanism supports lead wires protruding from both ends of the element body.
The supporting part to be held and this supporting part by the chuck mechanism
It can be moved to a position where the body can be grasped
And a drive unit.

[0010]

In the present invention, the structure as described above is provided.
Then, wind the resistance wire around the element body
Automatically feeds to a wearable position without human intervention
You can

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a top view showing the structure of one embodiment of the present invention, FIG. 2 is a partial side view thereof, and FIG. 3 is a partial enlarged perspective view showing a chuck mechanism and a shooter mechanism.
As shown in FIGS. 1 and 2, the automatic winding machine 63 according to the present embodiment has caps 29,
By welding the resistance wire 17 to the front end side cap 29 of the element body 24 to which 48 is attached, winding the resistance wire 17 around the peripheral surface of the insulator 46, and welding the resistance wire 17 to the rear end side cap 48. The resistance wire 17 is wound around and fixed to the element body 24 to produce a wire wound resistor.

Then, the automatic winding machine 63 according to the present embodiment.
The spindle 37 is provided on the side plate 57 of the frame 1 toward the inside of the frame 1. Also, the rear end is a joint
Drive signal from the outside connected to the pulse motor 5 via 4
No. of rotations and any number of rotations
It is configured so that it can be rotationally driven by. So
Therefore, the rotation speed is a very small range of 1/200 to 1/400 rotations.
It can also be controlled in the enclosure. This spindle 3
The air cylinder 7 is installed in the axial direction of the spindle 7.
Move forwards and backwards, and an element body is formed between the chuck 38 and the chuck 38 described below.
It is configured to be able to hold 24.

Further , the chuck 38 is provided on the spindle 37.
It is coaxial with the rotation axis and faces the spindle 37.
It is rotatable so that it can hold the body 24 between
In addition, it is fixed to the side plate 62 of the frame 1 so as to be movable back and forth in the axial direction.
The axial movement is fixed outside the side plate 62.
Performed by the fixed air cylinder 7 through the connecting portion 8.
Be done.

In the present embodiment, the element body 2 described above is used.
The chuck mechanism 44 for gripping the end portion of No. 4 is shown in FIG.
As a pair of gripping bars that are arranged facing each other
The chuck 38 and the spindle 37 of
To the chuck 38 and the spindle 37 as the gripping rod body of
Are caps 29 provided at the ends of the element body 24,
It is pressed against 48 and contracts from the front end to the rear end.
Gripping portion 3 including an opening having a tapered inner peripheral surface 45
9, 40 and the rear ends of the grips 39, 40,
If the lead wires 30 are protruding from both ends of the element,
A storage part formed of a cavity capable of storing the lead wire 30 of
41 and 42 are provided.

Diameter of the gripping portions 39, 40 having the above-mentioned openings
Is formed larger than the diameter of the element body 24, and
When 9 and 40 hold the element body 24, the key of the element body 24 is
So that the caps 29, 48 can be gripped on the inner peripheral surface 45.
Is configured. Then, as shown in FIG. 2, above the spindle 2 and above the spindle 2, a pair of welding electrodes 9 are provided on a U-shaped movable frame 10 and an air cylinder 11 respectively.
Thus, a U-shaped swinging frame 12 is similarly mounted inside the movable frame 10 so as to be rotatable in the vertical direction, coaxially with the welding electrode 9.

The swing frame 12 is joined on the movable frame 10 by a pin 47 provided at the tip of an arm 59 provided on the air cylinder 13 fixed to the side plate 57 of the frame 1. Is configured so that it can rotate at a constant angle. Further, the movable frame 10 is supported by the frame 1 via a feed screw 14 having a thread groove and a guide shaft 15, and according to the rotation of a pulse motor 16 for rotationally driving the feed screw 14, The drive frame 10 is moved along the rotation axis direction of the spindle 2 so that the position of the welding electrode 9 can be set appropriately, and a resistance wire 17 is supplied to the central portion of the swing frame 12. A nozzle mechanism section 18 is provided.

The nozzle mechanism portion 18 is supplied when the resistance wire 17 is welded to the rear end side cap 48 of the element body 24 and the nozzle body 50 in which the resistance wire 17 is inserted along the axial direction. When the resistance wire 17 is welded to the rear end side cap 48 of the element body 24, the nozzle main body 50 is set to a predetermined size when the resistance wire 17 is tensioned to the resistance wire 17 by pulling the resistance wire 17. And a nozzle rotating portion 58 that can be rotated at an angle.

In the present embodiment, as shown in FIG. 2, the tension applying means 64 includes a nozzle advancing / retreating drive section 51 capable of retracting the nozzle 20 in a direction away from the element body 24, and the nozzle 20. A resistance wire fixing portion 52 that can fix the resistance wire 17 inside the nozzle 20 after the retreat operation is started. Inside the nozzle body 50, a resistance wire supply groove 56 through which the resistance wire 17 is inserted is provided along the axial direction.

The nozzle advancing / retreating drive unit 51 is composed of two air cylinders 19 fixed to the back surface of the swing frame 12 in the vertical direction. The two air cylinders 19 are attached to the mounting plate of the nozzle body 50. Each of them is fixed to 60 via an arm 61. And the nozzle body 5
0 and the resistance wire fixing portion 52 are fixed to the mounting plate 60, and the nozzle body 50 and the resistance wire fixing portion 52 are separated from the element body 24 by the operation of the air cylinder 19 (see FIG. 1).
It is configured such that it can be retracted to the right with respect to the element body 24 as a reference, and can be advanced to a position where a resistance wire can be wound around the element body 24. In addition, the resistance wire fixing portion 52
Is an air cylinder 23 provided so as to project rearward of the apparatus.
And a clamp mechanism 53 driven by the air cylinder 23.

The clamp mechanism 53 is composed of an L-shaped clamp lever 21 and a shaft 22. The clamp lever 21 is rotated about the shaft 22 by the operation of an air cylinder 23 and is clamped. The resistance wire 20 can be fixed inside the nozzle body 50 by pressing the resistance wire 20 against the inner surface of the resistance wire supply groove 56 by the clamp portion 55 formed at the tip of the lever 21.

The nozzle rotating portion 58 has an air cylinder 13 fixed to the side plate 57 of the frame 1, and an arm 59 for advancing and retracting by the air cylinder 13.
A pin 47 pivotally fixed to the nozzle body 50 at an intermediate portion in the longitudinal direction of the nozzle body 50, so that the nozzle body 50 can be rotated together with the swing frame 12 by a predetermined angle according to the operation of the air cylinder 13. It is configured.

The resistance wire 17 is wound around a bobbin (not shown) and is given a certain tension so that the resistance wire 17 is supplied to the nozzle mechanism portion 18 without slack. Furthermore, FIG. 1 and FIG.
As shown in FIG.
Is the body conveyed from a parts feeder (not shown).
Shooter machine for supplying 24 to the chuck mechanism 44
Structure 25 is provided.

This shooter mechanism 25 is provided on both sides of the body 24.
Supports for supporting the lead wires 30, 30 protruding from the ends
26 and the supporting portion 26 by the chuck mechanism 44.
And a drive unit 28 including an air cylinder that can move the element body 24 to a position where it can be gripped. Above support
Numeral 26 is formed by bending an elongated plate into a planar U-shape.
The upper edge of the front end of the facing surface portions 32, 32 of the support portion 26 is
Lead wires 30 provided so as to project from both ends of the element body 24,
A notch 34 capable of holding 30 is provided. This branch
The upper end is opened outward on both sides of the holding part 26.
The guides 35, 35 bent and formed are provided,
Supporting body 24 supplied from a non-parts feeder
26 is configured to be easily supported.

The pulse motors 5 and 16 and the air cylinders 7, 11, 13, 19, 23 and 28 are so constructed as to be comprehensively controllable by a drive circuit unit having an arithmetic control function (not shown). ing. Next, the operation of the automatic winding machine according to this embodiment will be described with reference to FIGS. First, the resistance value of the resistor to be manufactured, the element body diameter, the element body length, and the resistance value per 1 m of the wire rod are set. The resistance wire 17 is inserted into the resistance wire supply groove 56 in the nozzle mechanism portion 18 and set in the automatic winding machine 63 according to this embodiment, and the number of manufactured pieces is designated. In this case, in a drive circuit unit (not shown), the rotation speed of the pulse motor 5 and the rotation speed of the pulse motor 16 are determined from the total number of windings of the resistance wire 17, and how many times the resistance wire 17 is wound around the element pair 24. Set.

After that, the cores of the shooter mechanism 25 are
The character-shaped support portion 26 is provided from a parts feeder (not shown).
The supplied element body 24 was projected on both ends of the element body 24.
Connect the lead wires 30, 30 to the facing surface portions 32, 3 of the support portion 26.
It supports in the notch parts 34 and 34 provided in 2. So
After that, the air cylinder 28 is actuated, and the chuck mechanism 44
The chuck 38 and the spindle 37, which constitute the
The support portion 26 is provided to reach a position where the both ends can be gripped.
And the element body 24 is conveyed.

Thereafter, as shown in FIG. 3, the air cylinder
The operation of 7, 7 causes the chuck 38 and the spin to spin.
The dollars 37 advance to each other, and the chuck 38 and the spindle
Gripping portions 39 and 40 formed at the tip end portion with 37 and having an inner peripheral surface 45 having a tapered shape that contracts in the direction from the tip end portion to the rear end portion are respectively provided from both end portions of the element body 24. Hold the body 24.

In this case, the ends of the element body 24 are projected.
The lead wires 30, 30 are the rear end portions of the grip portions 39, 40.
Inside the storage parts 41, 42 consisting of elongated cavities connected to the
2 which is housed in and is capped at both ends of the body 24.
9 and 48 are in pressure contact with the inner peripheral surface 45 of the grip portions 39 and 40.
Held by chuck 38 and spindle 37
Be done.

In this case, the chuck 38 and the spindle 3
7 is a grip formed by an opening having a tapered inner peripheral surface 45.
Since the holding portions 39 and 40 are provided, the holding portion 3
9, 40 are lead wires 30, 30 are stored in storage parts 41, 42
It functions as a guide when it is delivered, and the lead wire
30, 30 are smoothly stored in the storage portions 39, 40.
In addition, the lead wires 30 and 30 may be in the axial direction due to manufacturing errors or the like
If there is a gap in the
When the axis line of and the axis center of the insulator 8 do not match.
Even if both ends of the body 24 are gripped by the grips 39 and 40,
Since it is configured as follows, the axial center of the element body 24
In the state where it is aligned with the shaft center of the shaft 38 and the spindle 37.
Holding the element body 24 by the chuck 38 and the spindle 37
can do.

After that, the air cylinder 28 is moved backward, and the supporting portion 26 is returned to the initial position. At this time, the winding tip portion of the resistance wire 17 is the front end side cap 2 of the element body 24.
It is supported by the nozzle mechanism portion 18 so as to come to a position where it can come into contact with 9. Therefore, when the air cylinder 11 is actuated, the welding electrode 9 holds the front end side cap 29 with the resistance wire 17 in contact with the upper part from above and below via the resistance wire 17, and the welding electrode 9 By energizing, the winding tip of the resistance wire 17 can be welded to the upper part of the front end side cap 29.

In this case, when the resistance wire 17 is welded in parallel to the end circumferential surface of the front end side cap 29, the front end side is provided between the peripheral surface of the insulator 8 and the front end side cap 29. Since the step is formed by the thickness of the cap 29, when the resistance wire 17 is wound around the element body 24, the step is formed by the step.
When 4 passes, there is a case where an incomplete contact with the front end side cap 29 of a certain length occurs and the electric resistance of this part becomes unstable.

Therefore, at the time of welding to the front end side cap 29, the air cylinder 13 constituting the nozzle mechanism portion 18 is formed.
Is operated to rotate the swing frame 12 in the clockwise direction in FIG. 1 so that a large angle is formed between the resistance wire 17 and the end edge of the front end side cap 29. Upon completion of welding, the electrode 9 is separated from the resistance wire 17 and the front end side cap 29 by the backward movement of the air cylinder 11.

As a result, the pulse motor 16 rotates at a preset number of revolutions in the drive circuit section, and the nozzle mechanism section 1
The movable frame 10 having 8 is moved from the front end side cap 29 toward the central portion of the insulator 8 and moved to the winding start position on the insulator 8. Here, the air cylinder 13 is actuated again to contract the arm 59, whereby the swing frame 12 also rotates counterclockwise and returns to the position perpendicular to the axial direction of the element body 24.

From this state, the pulse motor 5 rotates to continuously pull out the resistance wire 17 from the nozzle 20, and
When the pulse motor 16 rotates, the movable frame 1
0 moves to the rear end side cap 48 of the element body 24, and
The resistance wire 17 is accurately wound around the insulator 8 of No. 4 by a predetermined interval and length. When the winding of the resistance wire 17 is completed, the air cylinder 13 is activated again and the arm 5
When 9 is projected, the swing frame 12 is rotated clockwise, and the winding direction of the resistance wire 17 is changed to the rear end side cap 4
Modify to form a large angle with the edge of 8.

After that, since the pulse motor 16 rotates by the number of rotations set in advance in the drive circuit section,
The resistance wire 17 rides over a step formed between the rear end cap 48 and the peripheral surface of the insulator 8, and the winding rear end of the resistance wire 17 is set at an appropriate position on the rear end cap 48. It
Next, the air cylinder 11 is operated, and the welding electrode 9 again sandwiches the rear end side cap 48 from above and below via the resistance wire 17.

Then, the tension applying means 64 is actuated to pull the resistance wire 17 toward the nozzle body 50 to apply tension to the resistance wire 17. That is, first, the two air cylinders 19 forming the nozzle advancing / retreating drive unit 51 constituting the tension applying means 64 are actuated to start retracting the nozzle 20 in the direction away from the element body 24.

Next, the air cylinder 23 constituting the resistance wire fixing portion 52 is operated to operate the clamp mechanism 53.
That is, when the clamp lever 21 rotates about the shaft 22, the clamp portion 55 connects the resistance wire 17 to the resistance wire supply groove 5.
By pressing against 6, the resistance wire 17 is fixed inside the nozzle 20. In this case, since the nozzle 20 continues to be separated from the element body 24 as described above, the resistance wire fixing portion 5 is provided.
By the operation of 2, the resistance wire 17 is pulled in the direction of the nozzle 20 and the resistance wire 17 is in a tensioned state.

When the electrode 9 is energized in this state, the resistance wire 17 is welded to the rear end side cap 48, and the nozzle 20 continues to be separated from the element body 24. , Is cut off on the nozzle 20 side of the welded portion, and is automatically fused. Therefore, in this embodiment, the winding and welding operation of the resistance wire 17 is completed without separately providing a cutter mechanism or the like for cutting the rear end of the resistance wire 17 wound around the element body 24 after welding. Further, as described above, in this embodiment, the nozzle 2
After starting the backward movement operation of 0, the resistance wire 17 is connected to the resistance wire fixing portion 52.
Is configured to be fixed inside the nozzle 20, and the nozzle mechanism portion 18 is configured to fix and melt the resistance wire 17 after starting to separate from the element body 24. By the movement of 18, the resistance wire 17 of a predetermined length is projected from the tip of the nozzle body 50.

Therefore, the resistance wire 17 after cutting is in a state of protruding by a predetermined length from the tip of the nozzle body 50, and the front end side cap 29 of the new element body 24 to be wound next time.
When welding to a wire, the length of the resistance wire 1 necessary for welding again
The process of sending out 7 can be omitted. In the present embodiment, the resistance value of the resistance wire 17 accurately wound and welded by the pulse motors 5 and 6 is extremely accurate, and only an error in the shape of the element body 24 remains, and the measurement accuracy is 2
%. After the fusing of the resistance wire 17 is completed, the welding electrode 9 is returned in the vertical direction by the air cylinder 11 and the pulse motor 16 is rotated in the reverse direction to return the entire movable frame 10 to the initial winding operation position. When the holding of the body 24 by the chuck 6 is released by the cylinder 7, the completed winding resistor is the spindle 2
And is dropped downward and stored in a stacker (not shown).

If the above steps are repeated by the designated number of manufactured products, the wound resistor is manufactured one after another, and no manpower is required during this period. In addition, the operation is extremely efficient because it is a continuous series of operations using a pulse motor and an air cylinder, and the time required to manufacture one piece is actually over 6 seconds, which is 50% faster than the speed performed by humans. . In the present embodiment, the case where the tension applying means includes the nozzle advancing / retreating drive section 51 and the resistance wire fixing section 52 has been described as an example, but the configuration of the tension applying means is the present embodiment. It is not limited to

Further , in this embodiment, the supporting portion 2 is
The case where 6 is bent and formed by an elongated plate material has been described as an example, but the present invention is not limited to this embodiment, and is configured to be able to support the element body 24 on which the lead wire 30 is projected. It suffices if it is sufficient, and for example, it may be configured by a rod-shaped support arm. Further, in this embodiment, the lead wires 3 are provided on both ends.
The resistance wire 17 is wound around the element body 24 on which 0 and 30 are projected.
Although the case has been described as an example, the present invention is not limited to this example.
By changing the configuration of the tutor mechanism appropriately, both ends
Body or end without lead wires 30, 30 protruding from
A body with a child at one or both ends,
Is also held by the chuck mechanism 44 according to this embodiment,
The wire 17 can be wound.

[0041]

The present invention is constructed as described above.
Therefore, trying to wind a resistance wire on an automatic winding machine.
Automatically supplies the element body to the position where the resistance wire can be wound
It is possible to improve the manufacturing efficiency of the winding resistor.
Has the effect of

[Brief description of drawings]

FIG. 1 is a top view showing the structure of an embodiment of an automatic winding machine according to the present invention.

FIG. 2 is a partial front view showing the structure of one embodiment of the automatic winding machine according to the present invention.

FIG. 3 is a diagram showing a chuck used in the automatic winding machine according to the present invention .
Partial enlargement showing an embodiment of the structure of the feed mechanism and feed mechanism
It is a large perspective view.

FIG. 4 is a perspective view showing an example of a conventional automatic winding machine.
It

[Fig. 5] Using a conventional automatic winding machine, melt the resistance wire into the element body.
It is a partial sectional view showing the case of wearing.

FIG. 6 shows a chuck mechanism for a body of a conventional automatic winding machine.
FIG.

FIG. 7 is a perspective view generally showing a wirewound resistor.

[Explanation of symbols]

1 Frame 3 Recess 4 Joint 5 Pulse Motor 7 Air Cylinder 8 Coupling 9 Welding Electrode 10 Movable Frame 11 Air Cylinder 12 Swing Frame 13 Air Cylinder 14 Feed Screw 15 Guide Shaft 16 Pulse Motor 17 Resistance Wire 18 Nozzle Mechanism 19 Air cylinder 20 Nozzle 21 Clamp lever 22 Shaft 23 Air cylinder 24 Element body 25 Shooter mechanism 26 Support
Portion 28 Air cylinder 29 Front end side cap 30 Lead wire 32 Opposite
Surface portion 34 Notch portion 35 Guide 36 Air cylinder 37 Spindle 38 Chuck 39 Grasping
Part 40 Grip 41 Storage
Part 42 storage part 44
Mechanism 45 inner surface 46 insulation
Body 47 Pin 48 Rear end side cap 50 Nozzle body 51 Nozzle advancing / retreating drive part 52 Resistance wire fixing part 53 Clamping mechanism 55 Clamping part 56 Resistance wire supplying groove part 57 Side plate 58 Nozzle rotating part 59 Arm 60 Mounting plate 61 Arm 62 Side plate 63 Automatic Winding machine 64 Tension applying means 65 Automatic winding machine 66 Resistance
Wire supply mechanism 67 Resistance wire winding mechanism 68 Base 69 Element holding device 70 Resistance
Wire welding device 71 Drive unit 72 Element body
Holding unit 73 Holding body 74 Holding body
Holding bar 75 Rod 76 operation
Lever 77 Electrode 78 Electrode 79 Rail 80 Resistance
Line 81 Cap 82 Lee
Wire receiving groove 83 Flat portion 84 Lee
Wire 85 Insulator 86 Element 87 Moving unit

Claims (1)

[Claims] 1. A columnar insulator and both ends of the insulator
Attached caps and welded to these caps
Body having a lead wire protruding in the axial direction of the insulator
Resistance wire is welded to the front end side cap of the
For winding the wire and welding the resistance wire to the rear end side cap.
Wire-wound resistor is made by winding and fixing the resistance wire around the element body.
In an automatic winding machine, a nozzle mechanism that supplies the resistance wire inserted inside to the element body
A chuck mechanism for gripping the end of the element body, and a chuck
The shooter mechanism that supplies the element body to the mechanism and the chuck
The element body gripped and fixed by the mechanism is
Spindle mechanism to rotate by rotating the above resistance wire
Welding electrode machine for welding to a cap attached to
The shooter mechanism has a lead structure provided at both ends of the body.
A supporting part for supporting the wire, and the supporting part for the chuck mechanism.
Can be moved to a position where the body can be grasped by
And a drive section capable, the support portion is formed in a flat substantially U-shaped, of the support portion
At each of the facing parts, the ribs protruding from both ends of the element body are provided.
A notch that can hold the lead wire is provided , the drive unit is an air cylinder, and the support unit
Characterized by being configured to move out or back
Automatic winding machine.