JPH07237743A - Work feeder - Google Patents

Abstract

PURPOSE:To feed and attach works delivered from a parts holder automatically to a work attaching position one at a time by operating a working table, a work feed transmitting means, a work feeding means and a signal transmitting means in mutual linkage. CONSTITUTION:When a work attaching position of a work attaching parts 4 held by a working table, which rotates in synchronism with a transmitting table 6, comes in close vicinity to a feeding shoot 3, a feeding arm 10 pushes one end of a feeding cam 12. As a result, the other end of the feeding arm 12 moves the end part of a feeding plate 8 through a connecting pin 9 and also moves a delivery rail 2 through a fulcrum 14. A feed rail 1 has works fed from a parts feeder 7 orderly stored thereon and, when the delivery rail 2 is connected to the lower end of the feed rail 1, works are moved to the delivery rail 2 one at a time. Works are then guided to the work attaching position by their tare weight and forcibly attached thereon by a press-in device 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supply device,
Specifically, in a process of assembling a product including a plurality of constituent members such as automobile parts (for example, an oil separator), a specific portion (referred to as a workpiece mounting portion) of one component member (referred to as a workpiece mounting portion) of the product, The present invention relates to a device for mounting another component (called a work).

[0002]

2. Description of the Related Art In a conventional product assembling process, a work mounting part is held on a work table, and a necessary work is manually mounted on a work mounting part of the work mounting part, or after the work, for example, It was attached by press-fitting with a press-fitting device. This is because, generally, the work mounting portion of the work mounting component is narrow, the work is small, and it is necessary to accurately mount the units one by one, which makes it difficult to perform automatic mounting by a machine. Here, one unit usually means one by one, and when a plurality of the same works are simultaneously supplied to the same site, the unit is said.

[0003]

In the prior art, since the work is mounted by hand, there is a problem that it takes a long time to mount the work. Further, it takes a long time for the worker to master the work. In addition, when the press-fitting device was used, there was a case in which a hand was put inside the device, which was a safety problem.

A work mounting apparatus of the present invention aims to solve the above problems.

[0005]

In order to achieve the above object, a work supply apparatus of the present invention comprises: a) a horizontally supported work table for holding a work mounting part; and b) a work feeding / transmitting means. , C) A supply rail that stores the work, and is installed near the end of the supply rail so that it can hold a single unit of work and move a distance equal to or less than the width of the work in a direction orthogonal to the flow direction of the work. With a feeding rail,
Work supply means constituted by a supply chute, one end of which is close to the end of the delivery rail, and the other end of which is supported above the work mounting portion of the work mounting component which is held on the work table, d) Signal transmitting means for activating the means for moving the feed rail in response to the signal transmitted by the work feeding / transmitting means.
In addition, the cross section of the supply rail, the delivery rail, and the supply chute has a concave shape, and has a size such that the work can move only one line inside. Further, the supply rail, the delivery rail, and the supply chute are arranged in this order according to the flow of the work. The supply chute is attached with a distance less than the width of the work (distance that the delivery rail moves) from the extension of the supply rail in the length direction.

The above work table may be a work table or the like that moves left and right, but it is desirable that the work table is supported by a rotary shaft in a disk shape. When the work table is supported by the rotary shaft, the rotary shaft may be provided with a transmission table having a feed arm in the peripheral portion as work feed transmission means.

When the work table is supported by the rotary shaft, it is possible to have a feed arm as a work feed transmitting means in the peripheral portion of the work table.

As the signal transmission means, a) a feed cam which has a connecting pin at one end for connecting to the feed plate, and is pivotally supported by a fulcrum at a position where the other end contacts the feed arm, and b ) A feed plate having one end abutting on the feed rail and the other end connected to the connecting pin of the feed cam and rotatably supported by the fulcrum, and c) means for returning the feed rail to the work start position can be provided. . As the pulling back means, for example, a coil spring or the like can be attached to the push rail.

As another means of the signal transmission means, a)
It is also possible to have a sensor for detecting the feed arm, and b) means for moving the feed rail which is actuated by the electrical signal of this sensor. As a concrete means, the feed arm is detected by an optical sensor, a magnetic sensor, etc., and the signal is used to move the feed rail by operating a solenoid, an air cylinder, a rack and pinion mounted on the feed rail. You can also

Further, a press-fitting device may be provided above the work table for strongly mounting the work on the work mounting part.

[0011]

The work mounting apparatus of the present invention having the above-described structure can achieve its purpose by the following operations.

First, by horizontally supporting the work table for holding the work mounting parts, the work mounting parts can be stably held on the work table, and the work supplied by the supply chute above the work table can be stably held. It can be mounted on the workpiece mounting parts. When using the press-fitting device, it is possible to support the press-fitting force.

The work feeding / transmitting means sends a signal for operating the work feeding means when the work mounting portion of the work mounting component approaches the lower end of the supply chute. With this signal, the delivery rail can be operated to supply the work to the work mounting portion.

On the supply rail, the works supplied from the parts feeder are stored in a state of being aligned one by one. When the delivery rail is connected to its lower end,
The work moves one unit by one unit by its own weight (slides down). At this time, the delivery rail and the supply chute are discontinuous, and the work moved to the delivery rail does not move to the supply chute further.

The delivery rail holds only one unit of the work, so that the works continuously stored in the supply rail can be separated into each unit and sent to the supply chute. Further, the delivery rail is connected to the supply chute by moving a distance equal to or less than the width of the work in a direction orthogonal to the flow direction of the work. As a result, the work received when connected to the supply rail is moved to the supply chute. At this time, the delivery rail and the supply rail are discontinuous, and the work does not drop from the supply rail to the delivery rail.

The supply chute receives the work by continuing to the above-mentioned delivery rail which holds the work at one end thereof. The other end of the supply chute is
Since the work mounting part supported by the work table is supported above the work mounting part, the received work slides down by its own weight and is guided to the work mounting part.

The signal transmission means moves the delivery rail to a position where it is connected to the supply chute by transmitting the signal transmitted by the work feed transmission means to the delivery rail as a force. Accordingly, when the work mounting portion of the work mounting component on the work table comes closest to the end of the supply chute, the work held by the feed rail can be supplied to the work mounting portion via the supply chute.

As described above, the work table, the work feeding / transmitting means, the work feeding means, and the signal transmitting means operate in cooperation with each other, so that the work sent from the parts holder is worked one unit at a time when necessary. Can be supplied to the mounting site.

When the work table is supported by the rotary shaft as in the work supply device of the second aspect, the work mounting parts can be continuously supplied and the products can be continuously removed. In this case, by providing a transmission table having a feed arm on the periphery of the rotary shaft, it is possible to transmit a work feed signal at a specific position on the work table in synchronization with the progress of the work mounting work.

According to the third aspect of the present invention, the device can be downsized by providing the feed arm at the peripheral portion of the work table for the convenience of the device design depending on the kind of the product and the number of parts. Can be reduced.

The signal transmitting means according to the fourth aspect comprises a feed cam, a feed plate, and means for returning the feed rail to the work starting position.

The feed cam receives the mechanical feed signal (force) from the feed arm by coming into contact with the feed arm of the transmission table, and pivots about the fulcrum to feed the force through the connecting pin. Can be transmitted to. The feed plate changes the direction of force by a fulcrum and moves to a position where the feed rail holding the work is connected to the supply chute. As a result, the work held on the delivery rail is sent onto the work mounting component via the supply chute. By the means for returning the delivery rail to the work start position, the delivery rail that has sent the work to the supply chute is returned to the delivery work start position so that the next work feeding work can be started.

In another signal transmitting means according to a fifth aspect, when the feed arm is detected by a sensor and is transmitted as an electric signal to the feed rail, when the signal transmitting path becomes complicated in the device design, and the distance thereof. It can be used for long periods.

By providing the press-fitting device of the sixth aspect above the work table, the work can be mounted on the work mounting portion by applying a constant pressure. As a result, a work with high dimensional accuracy can be mounted on a work mounting site with high dimensional accuracy.

[0025]

EXAMPLE First, a product assembled by the work supply apparatus of this example will be briefly described with reference to FIG. This product is a component used for an oil separator of an automobile, the work mounting component 4 is a plastic injection-molded product, and has work mounting portions 23 at three positions, and the work 16 is mounted on each of them ( FIG. 6A). Work 1
6 is a metal cylinder having a hollow portion 22 (see FIG. 6).
(B)).

An embodiment of the work supply device according to the present invention will be described below with reference to FIGS. 1 to 5. FIG. 1 shows a side view for explaining the configuration of the embodiment. 2 shows a front view thereof, and FIG. 3 shows a plan view thereof.

The work table 5 of the present embodiment has a disk shape which is supported by a rotary shaft 13 so as to be horizontally pivotable in the vicinity of a lower part of a work supply means 25, which will be described later, and has a guide pin 21 on its upper surface. Is equipped with. Work mounting part 4
Is passed through the work mounting portion 23 (see FIG. 6) of the guide pin 21 and held by the work table 5. As a result, the work 16 (see FIG. 6) supplied from the work supply means 25 described later is guided to the work mounting portion 23 (FIG. 3) via the guide pin 21.

In this embodiment, the press fitting device 15 is used.
Since one product has three work mounting portions 23, the work 16 is sequentially guided to these three work mounting portions 23, and then the press-fitting device 15 is lowered to lower the work 16. Is press-fitted into the workpiece mounting portion 23.

The rotary shaft 13 is provided with a transmission table 6 having a feed arm 10 on the periphery thereof below the work table 5. This transmission table 6 has a rotary shaft 13
It rotates in the direction of arrow A in FIG. At the periphery of the transmitting table 6, the work mounting portion 23 of the work mounting component 4 held on the work table 5 is moved to a position where it can contact the feed cam 12 when the work mounting portion 23 is closest to the tip of the supply chute 3. Arm 10
Is attached. The mechanical signal (force) of the feed arm 10 is transmitted to the work supply means 25 described later via the signal transmission means 24 described later. As a result, the work 16 is guided by the guide pin 21 of the work table 5.
And is accurately guided to the work mounting portion 23.

The work supply means 25 of this embodiment comprises a supply rail 1, a delivery rail 2 and a supply chute 3. The work supply means 25 transfers the work 16 sent from the parts feeder 7 to the work table 5
Only one guide pin 21 is supplied in one operation. Here, the function of supplying the works 16 one by one by the work supply means 25 will be described with reference to FIG.

The supply rail 1 stores a required number of works 16. By appropriately inclining the supply rail 1, the work 16 can move in the direction of the delivery rail 2 by its own weight. The delivery rail 2 is shown in FIG.
From the position (the position where the supply rail 1 and the delivery rail 2 are connected) to the position of FIG. 5B (the position where the delivery rail 2 and the supply chute 3 are connected). The supply rail 1 is attached with a distance less than or equal to the width of the work 16 from the extension of the supply chute 3 in the work movement direction (arrow Z direction).

The movement of the work 16 due to the movement of the delivery rail 2 will be described. Before the start of the delivery work, the state is as shown in FIG. 5A, the supply rail 1 and the delivery rail 2 are connected, and only one work 16 moves to the delivery rail 2. At this time, the end of the supply chute 3 plays a role of preventing the work 16 from flowing out below the delivery rail 2. When the feed-out rail 2 moves in the X direction and is connected to the supply chute 3 by the feed signal of the signal transmission means 24 which will be described later (the state shown in FIG. 5B), the end of the feed-out rail 2 becomes the feed rail 1. The work 16 is further prevented from flowing out, and the held work 16 moves to the supply chute 3 by its own weight. Workpiece 16 is arrow Z
When it flows in the direction of
Fall on top of. After that, the feed-out rail 2 is moved in the Y direction by the pulling-back means (not shown) and returned to the position before the work is started (the position (a)). By this series of operations, the works 16 can be supplied to the work mounting parts 4 one by one.

The signal transmission means 24 of the present embodiment transmits the signal transmitted by the feed arm 10 of the transmission table 5 to
It is transmitted to the delivery rail 2 and serves to move the delivery rail 2 in a direction orthogonal to the flow direction of the work 16. Thereby, as described above, the works 16 can be moved to the supply chute 3 one by one. The embodiment will be described here with reference to FIG.

The signal transmission means 24 of this embodiment has a) a feed pin 8 which is provided at one end with a connecting pin 9 for connecting to the feed plate 8 and is supported by a fulcrum 11 at a position where the other end contacts the feed arm 10. Cam 12 and b) Send out one end rail 2
The feed plate 8 which is connected to the connecting pin 9 of the feed cam 12 and is pivotally supported by the fulcrum 14 and c) the feed plate 8 moves the feed rail 3 to feed the work 16 3 (see FIG. 5), and is configured to pull back the delivery rail 2 to the delivery work start position (position in FIG. 5A) (not shown). Next, the movement of these configurations will be described.

The transmitting table 6 rotates in the direction of arrow A,
The workpiece mounting portion 23 of the workpiece mounting component 4 held on the above-described work table 5 that rotates in synchronization is the supply chute 3
(See FIG. 3), the feed arm 10 pushes one end of the feed cam 12 in the direction of arrow A. The other end of the feed cam 12 moves in the direction of arrow B and moves the end of the feed plate 8 in the same direction via the connecting pin 9. The other end of the feed plate 8 moves in the direction of arrow C by the fulcrum 14,
The delivery rail 2 is moved in the same direction. FIG. 4 shows a state where the delivery rail 2 has completed the movement. After the movement is completed and the work 16 is sent out, the sending-out rail 2 is drawn back to the sending-out work start position by a not-shown returning means such as a coil spring or an air cylinder.

[0036]

According to the work supply apparatus of the present invention as described above, the worker supplies the necessary amount of works to the parts feeder, so that the work mounting parts of the work mounting parts can be mechanically and continuously mounted one by one. Can be supplied. As a result, compared to the conventional manual feeding work, the work learning period of the worker is shortened, and the assembling speed is greatly improved since there is no simple repetitive work.

By providing the transmission table as the work feeding / transmitting means in the apparatus of claim 2, the work can be supplied in synchronization with the progress of the work mounting work. Further, by providing the feed arm in the apparatus of claim 3 on the work table, the apparatus can be made smaller.

Signals can be transmitted by using mechanical means such as a feed cam and a feed plate as the signal transmission means of the apparatus according to the fourth aspect. In the device according to the fifth aspect, the device can be simplified by converting the signal of the feed arm into an electric signal as another signal transmitting means.

By using the press-fitting device in the device according to the sixth aspect, the gap between the work mounting portion and the work is small, and the mounting can be easily performed even when a strong force is required for mounting. Further, the operator does not have to put his / her hand inside the apparatus, and the safety problem is eliminated.

[Brief description of drawings]

FIG. 1 is a side view for explaining an outline of an embodiment of a work supply device according to the present invention.

FIG. 2 is a front view of the work supply device of FIG.

3 is a plan view of the work supply device of FIG. 1, in which a press-fitting device is excluded.

FIG. 4 is a conceptual diagram illustrating a signal transmission means in an embodiment of the work supply device according to the present invention.

FIG. 5 is a conceptual diagram for explaining a single piece feeding means in an embodiment of the work supply apparatus according to the present invention. The delivery rail 2 includes (a), (b), (c), and
Move in the order of (a).

FIG. 6 illustrates a product as a work target of the embodiment of the work supply device according to the present invention. FIG. 6A shows a work mounting part in which a work is incorporated, and FIG. 6B shows a shape of the work.

[Explanation of symbols]

 1 ... Supply rail 2 ... Feed-out rail 3 ... Supply chute 4 ... Work mounting part 5 ... Work table 6 ... Transmission table 7 ... Parts feeder 8 ... Feed plate 9 ... Connecting pin 10 ... Feed arm 12 ... Feed cam 13 ... Rotary shaft 16 ... Work 24 ... Signal transmission device 25 ... Work supply means

Claims (6)

[Claims] 1. A work supply device for supplying a work to a work mounting portion of a work mounting component one by one, a horizontally supported work table for holding the work mounting component, a work feeding / transmitting means, and a work. A supply rail to be stored, and a delivery rail that is mounted close to the end of the supply rail and holds only one unit of the work and can move a distance equal to or less than the width of the work in a direction orthogonal to the work flow direction, Work supply means constituted by a supply chute, one end of which is close to the end of the delivery rail, and the other end of which is supported above the work mounting portion of the work mounting component which is held on the work table, By the signal sent by the work feed sending means,
A work supply device, comprising: a signal transmission unit that operates a unit that moves the delivery rail. 2. The work table is supported by a rotary shaft, and a rotary table having a feed arm in the peripheral portion is provided on the rotary shaft as the work feed transmitting means.
The work supply device described in 1. 3. The work supply apparatus according to claim 1, wherein the work table is supported by a rotary shaft, and a feed arm is provided as a work feed transmission means on the periphery of the work table. 4. A feed cam, which has a connecting pin connected to a feed plate at one end and is pivotally supported by a fulcrum at a position where the other end contacts the feed arm, as the signal transmission means, A feed plate which is in contact with the feed rail and the other end of which is connected to a connecting pin of the feed cam and which is rotatably supported by a fulcrum; and means for pulling the feed rail back to the work start position. The work supply device according to item 3. 5. The work supply apparatus according to claim 1, further comprising a sensor for detecting a feed arm, and a means for moving a feed rail operated by an electric signal of the sensor, as the signal transmission means. 6. The work supply device according to claim 1, further comprising a press-fitting device provided above the work table.