JPH0780106B2 - Rotor assembly machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a rotor assembling machine for inserting a lock plate and a coil spring into a rotor arranged in a key cylinder such as an ignition key or a door key of a vehicle. It is about.

(Prior Art) Conventionally, in a rotor assembly machine, a coil spring is inserted into a lock plate hole formed in advance in the rotor,
After that, the lock plate is inserted. Then, the coil springs are separated one by one from the parts feeder storing a large number of coil springs and inserted into the lock plate holes. That is, as shown in FIG. 14, the coil spring 41 is guided from the parts feeder in a vertically stacked state by the guide hole 42, and the upper locking pin 43 and the lower locking pin 44 are inserted in the guide hole 42 by the cam mechanism. It is provided so that it can appear and disappear. As shown in FIG. 14, when the lower locking pin 44 projects into the guide hole 42,
A large number of coil springs 41 are stacked above the coil springs 41 supported by 44, and from this state, as shown in FIG. 15, both locking pins 43 and 44 both project into the guide hole 42, As shown in FIG. 16, when the lower locking pin 44 is retracted, the lowermost one coil spring 41 falls due to its own weight and is set in the lock plate hole of the rotor. Then, the above-described operation is repeated and one coil spring 41 is provided in each lock plate hole.
Are sequentially inserted.

(Problems to be solved by the invention) However, in the above-described assembly machine, even if the lower engaging pin 44 is retracted as shown in FIG.
In some cases, the lowermost coil spring 41 may not fall due to entanglement between the upper end of the upper end 41 and the lower end of the upper coil spring 41 or magnetism. As a result, there is a problem that a defective rotor of the coil spring 41 may be assembled and a defect may occur.

Configuration of the Invention (Means for Solving the Problems) In order to solve the above problems, the present invention is directed to a rotor assembly that guides a coil spring to its assembly position by utilizing its own weight through a guide hole extending downward from a parts feeder. In the machine, the transfer jig is reciprocally supported between the lower end of the guide hole and the rotor assembling position, and the transfer jig communicates with the guide hole when positioned at the lower end of the guide hole and is connected to the coil spring. An insertion hole is formed to insert a second locking pin into and out of the guide hole, and the transfer jig is provided with a second locking pin into and out of the insertion hole. , The second locking pin is projected into the insertion hole to hold the lowermost coil spring in the insertion hole, and the first locking pin is projected into the guide hole so that the coil immediately above the lowermost coil spring is It has a configuration which is adapted to move the rotor assembly position from the guide hole bottom of the transfer jig while holding the Le spring.

(Operation) By the above means, the second locking pin is projected into the insertion hole of the transfer jig to be held in the insertion hole of the lowermost spring transfer jig and the first locking pin is projected into the guide hole. Then, the coil spring immediately above the lowermost coil spring is held in the guide hole. When the transfer jig in this state is moved from the lower end of the guide hole to the rotor assembly position, the lowermost coil spring and the coil spring immediately above it are reliably separated. The separated lowermost coil spring is assembled to the rotor at the rotor assembly position.

(Embodiment) An embodiment embodying the present invention will be described below with reference to the drawings. A rotor assembly machine 1 shown in FIG. 1 has a lock plate hole of a puller rotor (hereinafter referred to as rotor) 2 shown in FIG. 3, the coil spring 4 and the lock plate 5 can be simultaneously inserted from the both sides of the rotor 2 at the same position, and operate based on sequence control. First, its outline will be described. Coil spring 4
Further, in front of the mounting position P of the lock plate 5, a rotor transfer device 6 is provided so as to be movable in the left-right direction in the figure. Up to five rotors 2 are vertically supported by a rotor jig 7 on the rotor transport device 6, respectively, and the rotor jigs 7 are sequentially moved to the assembling position P so that the rotors 2 are attached to the rotors 2. The coil spring 4 and the lock plate 5 are inserted.

A key reading device 8 is arranged on the side of the rotor transport device 6 so as to detect the height of the key crest of the inserted key. Elevators 9 having a plurality of upper and lower grooves are arranged on both sides of the assembling position P, and pushing cylinders 10 for driving push arrows 16 are arranged beside the elevators 9, respectively. Then, a lock plate corresponding to each lock plate hole is selected from four types of lock plates based on the height of the key mountain read by the key reading device 8 and is inserted into each groove of the elevator 9 to lock the lock plate. The plate is adapted to be inserted into the rotor 2 with the push arrow 16. The key reading device 8 and the elevator 9 are known devices disclosed in Japanese Patent Laid-Open No. 62-45873, and a cam mechanism (not shown) provided under the machine base of the rotor assembling machine 1 is used. It is designed to work based on it.

A parts feeder 11 having a large number of coil springs is provided in the upper rear part of the assembling position P, and the coil springs 4 in the parts feeder 11 are transferred to the assembling position P by a predetermined number by a transfer jig 19 described later. Simultaneously with the insertion of the lock plate 5, the push arrow 16 inserts it into the lock plate hole 3.

The contact detector 12 is movably held forward of the assembly position P, and after the coil spring 4 and the lock plate 5 are inserted into the rotor 2, the contact detector 12 is advanced to the assembly position P and the coil spring 4 and The lack of the lock plate 5 is detected.

A dummy key insertion device 13 is provided above the assembling position P, and a large number of dummy keys 14 are always stacked in the horizontal direction with respect to the rotor 2 in which the coil spring 4 and the lock plate 5 are inserted. The lock plate 5 and the coil spring 4 inserted into the rotor 2 by inserting them one by one are prevented from coming off.

Next, a detailed structure of each of the above parts will be described.

As shown in FIG. 2, the elevators 9 arranged on both sides of the mounting position P are formed with a plurality of grooves 15 at the upper and lower sides.
A push arrow 16 is movably inserted in each. The tip of the push arrow 16 is formed in a shape along the edge of the lock plate 5 as shown in FIG.
As a result, the reciprocating motion is carried out within a range from a state where the elevator 9 is removed to a position where the tip of the elevator 9 penetrates the groove 15 and the rotor jig 7 and reaches the inside of the rotor 2. In addition,
In this embodiment, five push arrows 16 are projected from the left side and four push arrows 16 are projected from the right side with respect to the rotor 2. In the elevator 9, the lock plate 5 is provided in each groove 15 by the cam mechanism based on the reading result of each key mountain by the key reading device 8.
Are inserted one by one, and the push arrows 16 project from the side of the elevator 9 after the insertion, and the lock plates 5 are simultaneously inserted into the rotor 2 from the elevators 9 on both sides by the push arrows 16. . Incidentally, FIG. 2 and FIG.
As shown in the figure, the rotor jig 7 is formed with a plurality of insertion holes 17 for inserting push arrows 16 from the left and right, and an insertion hole 18 for inserting the contact detector 12 in the front-rear direction. Are formed.

As shown in FIG. 3, a pair of transfer jigs 19 for transferring a predetermined number of coil springs 4 to the assembly position P are disposed below the parts feeder 11, and the transfer jigs are provided.
19 is attached to the tip of the rotary arm 20 which is always held in the horizontal direction. The rotating arm 20 is supported so as to be vertically rotatable about its base end as a fulcrum as shown by a chain line in the figure, and is also supported so as to be movable forward. As shown in FIG. 19 is moved to the both sides of the rotor jig 7, that is, between the rotor jig 7 and the elevator 9.

As shown in FIGS. 4 and 5, the transfer jig 19 is provided with a plurality of insertion holes 21 through which the coil spring 4 and the lock plate 5 are inserted. In this embodiment, there are 5 transfer jigs on the left side and 4 transfer jigs on the right side.
An insertion hole 21 is formed at a place. Then, in a state in which the rotating arm 20 is supported in the horizontal direction, each insertion hole 21 is connected to a guide hole 23 provided in a guide member 22 extending downward from the part feeder 11, and the part in the guide hole 23 is connected to the guide hole 23. A large number of coil springs 4 dropped from the feeder 11 are stacked in series.

At the lower end of the guide member 22, there is provided a first locking pin 24 that protrudes and retracts horizontally into the guide hole 23 and acts as a holding means for the coil spring 4, and a hydraulic cylinder 25 provided at the rear portion of the guide member 22. Driven by. That is, the first locking pin 24 is a transmission member supported by the guide member 22 so as to be movable back and forth.
One end of a cam 27a which is supported by 26 and rotates about a shaft 27 as a fulcrum is engaged with the transmission member 26, and the other end of the cam 27a is connected to the hydraulic cylinder 25. When the cam 27a is rotated based on the operation of the hydraulic cylinder 25, the transmission member 26
The first locking pin 24 is reciprocally moved via the, and the tip of the first locking pin 24 projects into and out of the guide hole 23.

In the insertion hole 21 of the transfer jig 19, second and third locking pins 28 and 29 as holding means are supported so as to be retractable. The second and third locking pins 28, 29 are supported by a support member 30 supported by the rotating arm 20 so as to be movable back and forth, and the third locking pin 28
The tip of 29 projects forward from the second locking pin 28.
Then, the lower end of the transmission member 26 projects into the engagement recess 31 provided on the upper surface of the support member 30, and the support member 30 retracts as the transmission member 26 retracts, and the first locking pin 24 guides. When it is retracted from the hole 23, the second locking pin 28 is retracted from the insertion hole 21 with some delay, and the third locking pin 29 is still inserted into the insertion hole 21.
It is designed to project inward. Therefore, when the first and second locking pins 28 and 29 are sunk from the guide hole 23 and the insertion hole 21 in a state where the coil spring 4 is not housed in the insertion hole 21, they are stacked in the guide hole 23. The coil spring 4 is moved downward by its own weight, and the lowermost one coil spring 4 is moved onto the third locking pin 29 in the insertion hole 21, and in that state, the first and second engaging members are engaged. When the stop pins 24 and 28 move forward, the second locking pin 28 is inserted into the insertion hole as shown in FIG.
It engages with the coil spring 4 in 21 and the first locking pin 24
Engages with the coil spring 4 above it. When the rotating arm 20 is rotated downward from this state, the transfer jig 19 is rotated downward with one coil spring 4 accommodated in the insertion hole 21. ing.

An engaging protrusion 32 that protrudes upward is formed on the rear portion of the support member 30, and the engaging protrusion 32 contacts a stopper (not shown) when the rotating arm 20 is vertically rotated and moves forward. Therefore, the movement of the support member 30 is prevented. Therefore, when the transfer jig 19 is moved to both sides of the rotor jig 7, the third locking pin 29 is in a state of being sunk from the insertion hole 21.
The coil spring 4 can be pushed out into the rotor 2 by inserting the push arrow 16 therein.

The contact detector 12 is moved to the assembly position P after the coil spring 4 and the lock plate 5 are inserted into the rotor 2 by the push arrow 16 so that the missing parts of the coil spring 3 and the lock plate 5 can be detected. Has become.
That is, as shown in FIG. 6, a plurality of contact detectors 12 are provided vertically corresponding to the lock plate holes 3, and the front detector 12a and the rear detector 12b are connected to the transfer member 33 in series and moved back and forth. Supports possible, always both detectors 12a, 12b
A predetermined gap S exists between them. The transfer member 33 is transferred forward by a hydraulic cylinder (not shown). At that time, the front end of the front detector 12a is inserted into the insertion hole 17 of the rotor jig 7 as shown in FIG.
Thus, when the lock plate 5 is pushed out of the rotor 2, the detector 12a comes into contact with the lock plate 5. Then, the front detector 12a comes into contact with the lock plate 5 and moves slightly rearward, so that both detectors 12a,
An ON signal is output to the discrimination circuit described later when the ends of the 12b contact.

The result of detection of the lack of the lock plate 5 and the coil spring 4 by the contact detector 12 is output to a discriminating circuit 34 configured in a sequence as shown in FIG. 12, and the display device is based on the output of the discriminating circuit 34. The presence or absence of the lock plate 5 and the coil spring 4 of each rotor 2 is displayed on 35,
When a product is out of stock, in addition to the display on the display device 35, a warning sound is emitted from the alarm device 36.

Next, the operation of the rotor assembly machine 1 configured as described above will be described.

When the lock plate 5 and the coil spring 4 are inserted into a set of five rotors in the rotor assembling machine 1, first, the five rotor jigs 7 attached to the rotor transport device 6 are respectively attached to the rotor jigs 7. 2 is supported vertically and the key is inserted into the key reader 8. When the operation of the rotor assembling machine 1 is started in this state, first, the key crest of the inserted key is read by the key reading device 8, and at the same time, the first rotor jig 7 is conveyed to the assembling position P. , The lock plate 5 corresponding to each key ridge is selected and inserted into each groove 15 of the elevator 9.

Further, in the transfer jig 19 and the guide member 22, the hydraulic cylinder 25 operates and the first and second locking pins 24 and 28 retract and are retracted from the guide hole 23 and the insertion hole 21. Then, the first locking pin
The coil spring 4 stacked in the guide hole 23 on 24 moves to above the third locking pin 29, and the transfer jig 19 accommodates one coil spring 4 at the bottom.
Then, the first and second locking pins 24, 28 move forward to engage with the coil spring 4 in the transfer jig 19 and the coil spring 4 at the lowermost part in the guide hole 23, and in this state, the rotating arm 20. Is rotated downward. Then, the coil spring 4 in the transfer jig 19 and the coil spring 4 in the guide hole 23 are engaged with the first and second locking pins 24 and 28, respectively. The transfer jigs 19 are separated and rotated downward with the coil springs 4 housed in the insertion holes 21 one by one.

After rotating the rotating arm 20 up to the vertical direction, as shown in FIG. 3, the rotating arm 20 advances until the transfer jig 19 is positioned on both sides of the rotor jig 7 at the assembly position P. At this time, the second and third locking pins 28, 29 in the transfer jig 19 are sunk from the insertion holes 21, and the insertion holes 21 are inserted into the grooves 15 of the elevator 9 and the insertion holes 17 of the rotor jig 7. It will be in a state of communicating with.

When the transfer jig 19 reaches both sides of the rotor jig 7, the push arrow 16
Are moved from both sides toward the mounting position P, and the lock plate 5 located in each groove 15 of the elevator 9 at each tip portion.
The coil spring 4 located in each insertion hole 21 of the transfer jig 19 by its lock plate 5, and the lock plate of each rotor 2 is inserted from each insertion hole 17 of the rotor jig 7 as shown in FIG. The lock plate 5 and the coil spring 4 are inserted into the hole 3.

When the lock plate 5 and the coil spring 4 are inserted, the contact detector 12 moves forward and the insertion hole 18 of the rotor jig 7 is inserted.
The lock plate 5 and the coil spring 4
Out of stock is detected. That is, as shown in FIG. 7, by pushing the push arrow 16 forward and pushing the lock plate 5, one end thereof is projected to the outside of the rotor 2, and in this state, the contact detector 12 is pushed forward to check the presence or absence of the lock plate 5. To detect. That is, when the contact detector 12 comes into contact with the lock plate 5 as shown in the same figure, the presence of the lock plate 5 is detected, and even if the push arrow 16 is advanced as shown in FIG. When 12 does not contact the lock plate 5,
The lack of the lock plate 5 is detected.

Further, from the state shown in FIG. 7, the push arrow 16 and the contact detector 12
And the contact detector 12 is advanced again as shown in FIG. 8 to detect the presence or absence of the coil spring 4. That is, as shown in FIG.
If the contact spring 12 does not come into contact with the lock plate 5, as shown in FIG. 10, the lack of the coil spring 4 is detected. Then, such an out-of-stock detection operation is performed simultaneously by the corresponding push arrow 16 and contact detector 12 in each lock plate hole 3 of the rotor 2, and the detection result is displayed by the display device 35.
Is displayed in.

When the out-of-stock detection operation ends in this way, the dummy key insertion device 13 inserts the dummy key 14 into the rotor 2 from above, and as shown in FIG. The lock plate 5 and the coil spring 4 are prevented from coming off.

With the above, the assembly of the lock plate 5 and the coil spring 4 with respect to one rotor is completed, the rotor jig 7 supporting the rotor 2 is moved from the assembly position P,
The next rotor jig 7 is conveyed to the assembly position P, and the above-described assembly work is repeated. If the lock plate 5 or the coil spring 4 is missing at any one of the positions when the assembly work of the five rotors 2 is completed, the alarm device 36 emits a warning sound.

As described above, in the rotor assembling machine 1, the assembling position P
The lock plates 5 corresponding to the lock plate holes 3 of the rotor 2 are selected by the elevators 9 on both sides of the
15, the coil spring 4 corresponding to each groove lock plate hole 3 is transferred between the rotor jig 7 and the elevator 9 by the transfer jig 19, and the lock plate 5 and the coil spring 4 are pushed by the push arrow 16. Rotor 2 together
Is inserted into each lock plate hole 3. Therefore, the lock plate 5 and the coil spring 4 can be inserted into the rotor 2 at the same mounting position P.

The transfer jig 19 is rotated downward with one coil spring 4 accommodated in each insertion hole 21, and at that time, the coil spring 4 in the insertion hole 21 and the coil in the guide hole 23 above it. The spring 4 has first and second locking pins 24, 2
Since 8 are engaged with each other, the coil spring 4 in the insertion hole 21 and the coil spring 4 in the guide hole 23 above it are reliably separated. Therefore, since the transfer jig 19 is moved to both sides of the rotor jig 7 with one coil spring 4 being surely accommodated in each insertion hole 21, the coil spring 4 is prevented from being out of stock. can do.

On the other hand, the contact detector 12 for detecting a missing item is moved from a direction orthogonal to the insertion direction of the lock plate 5 and the coil spring 4 with respect to the rotor 2, and the lock plate that emerges from the rotor 2 based on the operation of the push arrow 16. Since the contact detector 12 is brought into contact with 5 to detect the lack of the lock plate 5 and the coil spring 4, the push arrow 16 does not interfere with the lack detection operation, and the lock plate in the rotor 2 is prevented. 5 and the missing parts of the coil spring can be quickly detected at the assembly position P.

Effects of the Invention As described in detail above, according to the present invention, since the coil spring is reliably transferred to the assembly position by the transfer jig, it is possible to prevent the rotor, which lacks the coil spring, from being installed. Be effective. Also, in order to separate the coil springs from each other, simply inserting the locking pin, the structure is extremely simple and highly versatile as a small coil spring separating mechanism.
It has an excellent effect that it can prevent the deformation of the coil spring.

[Brief description of drawings]

1 is a plan view showing a rotor assembling machine embodying the present invention, FIG. 2 is a front view showing the vicinity of the assembling position, and FIG.
FIG. 4 is a front view showing the operation of the transfer jig, FIG. 4 is a vertical sectional view of the guide member and the transfer jig, and FIG. 5 is a transverse sectional view of the transfer jig.
FIG. 6 is a side view of the contact detector, FIGS. 7 to 10 are cross-sectional views of the rotor jig showing the missing item detecting operation, and FIG. 11 is a cross-sectional view of the rotor jig showing a dummy key inserted state, FIG. 12 is a block diagram showing the electrical configuration of the shortage detection device, FIG. 13 is an exploded perspective view of the rotor, and FIGS. 14 to 16 are conceptual diagrams showing a conventional coil spring transfer device. 2 ... Rotor, 4 ... Coil spring, 11 ... Parts feeder, 19 ... Transfer jig, 23 ... Guide hole, 24 ...
First locking pin, 28 ... second locking pin.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 47/78 D 7716-3F

Claims (1)

[Claims] 1. In a rotor assembling machine for guiding a coil spring to an assembling position by utilizing its own weight through a guide hole extending downward from a parts feeder, a transfer jig (19) is provided with a lower end of the guide hole (23) and a rotor assembly. The transfer jig (19) is supported so that it can reciprocate between the mounting position (P) and the guide hole (23) of the transfer jig (19) when it is located at the lower end of the guide hole (23).
An insertion hole (21) communicating with the coil spring (4) and through which the coil spring (4) is inserted, and provided with a first locking pin (24) which can be retracted into the guide hole (23) at the lower part of the guide hole (23). The transfer jig (19) is provided with a second locking pin (28) capable of projecting and retracting in the insertion hole (21), and the second locking pin (28)
To the insertion hole (21) to hold the lowermost coil spring (4) in the insertion hole (21) and to project the first locking pin (24) into the guide hole (23). The transfer jig (19) is moved from the lower end of the guide hole (23) to the rotor assembly position (P) while holding the coil spring (4) immediately above the lower coil spring (4). Characteristic rotor assembly machine.