JPH0739869Y2 - Oil seal supply device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an oil seal supply device, and is used, for example, when supplying an oil seal with a lip portion press-fitted into a tubular portion of a knuckle arm to a press-fit punch. The present invention relates to a supply device that does.

[Conventional technology]

Generally, an oil seal supply device is used to supply the oil seal to the press-fitting punch. FIG. 5 shows a conventional oil seal supply device of this type. In FIG. 5, (1) is a guide tube which is installed upright at a predetermined position, and openings (2) and (3) are formed at the lower end side symmetrical portions of the guide tube (1). (4) is a guide tube (1)
An annular oil seal that is housed in multiple layers inside
(5) is a pusher installed on the lower end side portion of the guide tube (1) so as to be horizontally movable. The pusher (5) is used to install the oil seal (4) located at the lowest stage in the guide tube (1). The openings (2) and (3) of the guide cylinder (1) are used to push out to the outside of the guide cylinder (1) and supply to the press-fitting punch.

By the way, as shown in FIG. 6, on one side of the seal body (6a), a small-diameter lip portion (6b) having a width narrower than that of the seal body (6a) is integrally formed in a concentric annular shape. The oil seal (6) is attached to the tip portion of the press-fitting punch (7) with the lip portion (6b) positioned above and is press-fitted into the tubular portion (8a) of the knuckle arm (8). It is not possible to supply the oil seal (6) having the lip portion (6b) to the press-fitting punch (7) by using the oil seal supply device. That is, as shown in FIG. 7, when the oil seals (6) are stacked and housed in the guide cylinder (1), the lip portion (6b) of the lower oil seal (6) is located on the upper oil seal. (6) is fitted into the seal body (6a), and therefore when the pusher (5) presses the oil seal (6) located at the lowermost stage in the guide cylinder (1) through the opening (3). , The lip portion (6b) of the lower oil seal (6) is the main body (6) of the upper oil seal (6).
Hook on the a) and put the oil seal (6) on the guide tube (1).
Cannot be extruded from the outside to the press-fitting punch (7). Therefore, in the past, an operator used an oil seal (6).
Was distributed to each of the press-fitting punches (7), and after visually confirming that the lip portion (6b) was located above, they were attached to the press-fitting punches (7).

Incidentally, as related arts of the conventional techniques, there are those described in Japanese Utility Model Publication No. 61-141079 and Japanese Utility Model Publication No. 62-19178.

[Problems to be solved by the device]

According to the conventional technique, whether or not the operator manually distributes one oil seal (6) and supplies it to the press-fitting punch (7), and whether the lip portion (6b) is located above or not. Since it is necessary for the operator to visually check, the worker requires a great deal of labor and labor, and there is a problem that the workability is extremely poor.

The present invention has been proposed in view of the above problems, and an object thereof is to provide an oil seal supply device capable of automatically supplying an oil seal.

[Means for Solving the Problems]

The present invention has been proposed in view of the above problems, and the first invention is a guide rod in which an oil seal having a lip portion is held upright and is stacked and inserted in multiple stages, and the guide rod is vertically movable. And the moving body on which the oil seals are stacked and mounted so that the uppermost oil seal can be projected and held from the upper end of the guide rod when moving upward, and the base end is centered near the guide rod. And a swivel arm at the tip of which is openably mounted with a chuck claw for gripping an oil seal that is held by the movable body so as to project from the upper end of the guide rod. After the work is gripped, the movable body is moved downward so that the uppermost annular work and the next annular work can be separated from each other.

A second invention is a transport chute for transporting an oil seal having a small-diameter lip portion having a width smaller than that of the seal body, and an oil formed on a top surface of the transport chute so as to be vertically movable. A lifting body in which the oil seal is placed in a centered state at the rising end position on the seal mounting portion, and a radial direction from the center point of the oil seal mounting portion of the lifting body whose optical axis is located at the rising end. The light emitting device and the light receiving device are provided so as to be offset from each other so that the projected light can pass tangentially along the outer peripheral surface of the lip portion protruding above the oil seal on the lifting body. When the seal main body of the oil seal of (1) projects upward, the projection light from the projector is blocked by the seal main body.

[Action]

According to the first aspect of the invention, the oil seal having the lip portions that are stacked and inserted in the guide rod in multiple stages is pushed up by the moving body,
When the uppermost oil seal is projected and held above the upper end of the guide rod, the uppermost oilseal is gripped by the chuck claw at the tip of the swivel arm, and then the moving body descends and the uppermost oilseal and the next stage. Separated from the oil seal of. After that, the swivel arm swivels, and the oil seal gripped by the chuck claws is transferred to a predetermined position.

According to the second invention, the position of the lip portion can be determined by utilizing the difference in the outer diameter between the seal main body portion of the oil seal and the lip portion. That is, when the lip portion of the oil seal placed on the oil seal placing portion of the lifting body is located above, the projection light emitted from the projector passes tangentially along the outer peripheral surface of the lip portion and is received. When the seal body portion is positioned above, the projection light from the projector is blocked by the seal body portion.

〔Example〕

An embodiment of the device of the present invention will be described below with reference to FIGS. 1 to 4. Incidentally, the same components as those shown in FIG. 6 are designated by the same reference numerals, and the description thereof will be omitted. First
In FIG. 4 to FIG. 4, (11) is a rotary table installed at a fixed position for intermittent rotation, and (12) is a rotary table (1
The plurality of guide rods are fixed upright at the circumferentially equidistant positions of 1), and the oil seals (6) are stacked and inserted on the guide rods (12) in multiple stages. (13) is a moving body provided on each guide rod (12). This moving body (13) is a plate piece (1
An annular portion (15) on which oil seals (6) are laminated in multiple stages is integrally provided at the tip of 4), and the annular portion (15) is vertically movably fitted into each guide rod (12). Reference numeral (16) is an operating cylinder for moving the moving body (13) up and down, and the operating cylinder (16) is placed upright at a position outside the oil seal take-out position (a) close to the rotary table (11). And the tip of the actuating rod (17) to the moving body (1
The plate piece (14) of (3) is made to oppose the plate piece (14) so as to be able to collide with and separate from it. Reference numeral (18) is a stopper for restricting upward movement of the uppermost oil seal (6) pushed up by the moving body (13) along the guide rod (12). The stopper (18) is The guide rod (12) positioned at the oil seal removal position (a) by the rotation of the rotary table (11)
It is provided above and above it so as to be vertically movable at a predetermined interval. The stopper (18) has a stopper body (19) at the tip.
As shown in FIG. 2, the lower surface of the stopper body (19) has a seal body portion (6a) of the oil seal (6).
Annular ridge (20) that presses the upper surface of the
0), and a recess (21) into which the lip portion (6b) is fitted is formed. Reference numeral (22) is a gutter-shaped transfer chute for transferring the oil seal (6) to the press-fitting punch (7). The transfer chute (22) is located near the rotary table (1) and at the oil seal extraction position. It is installed on the side of (a). Reference numeral (23) is a swivel arm which is disposed in the vicinity of the turntable (11) so as to swivel horizontally around the base end (25) of the arm body (24).
In 3), the moving body (13) transfers the oil seal (6) projectingly held from the upper end of the guide rod (12) located at the oil seal extraction position (a) to a predetermined position above the transport chute (22). To do. The swivel arm (23) is a pair of chuck claws (26) (26) at the tip of the arm body (24) that opens and closes by an appropriate means to grip the oil seal (6).
Is attached. (27) is a delivery means for delivering the oil seal (6) gripped by the swivel arm (23) onto the transfer chute (22), and the delivery means (27) is a fluid pressure cylinder held upright. An elevating body (30) having an oil seal mounting portion (31) on its upper surface is attached to the upper end of the rod (29) of (28). The lifting body (30) passes through a through hole (22a) formed in a predetermined portion of the transfer chute (22) so as to be able to move up and down, and a chuck claw (26) of the turning arm (23) located at the turning end. It is held below (26). Further, the oil seal mounting portion (31) of the lifting body (30)
Forms an annular support wall (32a) that supports the seal body portion (6a) of the oil seal (6), is surrounded by the annular support wall (32a), and is the lip portion (of the oil seal (6) ( A recess (32b) into which 6b) can be fitted is formed. Reference numeral (33) is a detecting means for detecting whether the lip portion (6b) of the oil seal (6) held on the elevating body (30) is located above or below, and this detecting means (33).
Is composed of a light projector (34) and a light receiver (35). The light transmitter (34) and the light receiver (35) have an optical axis on both sides of the lifting body (30) located at the rising end so that the optical axis of the lifting and lowering body (30) does not interfere with the rotation arm (23). The outer periphery of the lip portion (6b), which is displaced in the radial direction from the center point of the mounting portion (31), and in which the projection light (36) faces upward of the oil seal (6) on the oil seal mounting portion (31). A seal body (6a) and a lip portion (6b) of the oil seal (6), which are tangentially passed along the surface (6c).
When the lip portion (6b) is located above due to the fact that the outer diameters α and β of α are β> β, the projection light (36) from the light projector (34) is incident on the light receiver (35). If the seal body (6a) is located above, the projection light (36)
Is configured to be shielded from light by the seal body (6a).

The operation procedure of the device of the present invention will be described below.

A large number of oil seals (6) are fitted into the guide rods (12) at predetermined intermittent stop positions of the rotary table (11), and are stacked and placed in multiple stages on the ring portion (15) of the moving body (13). When the rotary table (11) rotates intermittently and the guide rod (12) fitted with the oil seal (6) is located at the oil seal removal position (a), the working rod (17) of the working cylinder (16) projects and moves. Push the body (13) upwards. This moving body (13)
As shown in FIG. 2, the oil seal (6), which is inserted into the guide rod (12) in a multi-step manner, moves the uppermost oil seal (6) into an annular protrusion of the stopper (18). Pushed up until it abuts the article (20). Then, when the uppermost oil seal (6) abuts on the stopper (18) and is projected and held from the upper end of the guide rod (12), the swivel arm (23) moves around the base end (25). Chuck jaws (26) that are open after being swung in one direction and held at one swivel end
(26) closes and grips the uppermost oil seal (6). When the oil seal (6) is gripped by the chuck claws (26) (26), the stopper (18) rises,
Moreover, the moving body (13) moves downward due to the withdrawal of the working rod (17) of the working cylinder (16), and the next uppermost oil seal (6) and stopper (18) are the uppermost oil seal. Move away from (6). Then, the swivel arm (2
3) rotates counterclockwise around the base end (25) and is held at the other turning end, and the oil seal (6) held by the chuck claws (26) (26) and the delivery means (27). ), And the elevating body (30) held at the descending end of the () vertically opposes. After that, the rod (29) of the fluid pressure cylinder (28) is projected, and the annular support wall (31) of the lifting body (30) is changed to oil as shown in FIG. 3 (a) or FIG. 4 (a). When the seal (6) rises until it abuts the seal body (6a), the chuck claws (26) (26) of the swing arm (23) open and the oil seal (6) moves to the oil of the lifting body (30). Seal rest (3
1) It is placed on the top in a centered state. Thus the lifting body (3
When the oil seal (6) is placed on (0), the chuck claws (26) (26) of the turning arm (23) are opened and then
Projection light (36) is emitted from the projector (34). And
When the lip portion (6b) of the oil seal (6) placed on the lifting body (30) is located above as shown in FIGS. 3 (a) and 3 (b), it is emitted from the projector (34). Projection light (36)
Passes tangentially along the outer peripheral surface (6c) of the lip (6b) and enters the photodetector (35), and the mounting state of the oil seal (6) on the elevator (30) is normal. It is detected that there is. When it is detected that the oil seal (6) mounted on the lifting body (30) is normal, the rod (29) of the fluid pressure cylinder (28) retracts, and the lifting body (30) descends. And is held below the through hole (22a) of the transfer chute (22). While the lifting body (30) is descending, the oil seal (6) on the lifting body (30) is transferred onto the transfer chute (22) and is transferred onto the transfer chute (22) to be pressed into the punch (7). )
Is supplied to. On the other hand, the lip portion (6b) of the oil seal (6) placed on the lifting body (30) is shown in FIG. 4 (a).
As shown in (b), when the seal body (6a) is located in the recess (32) of the lift body (30) and is located below and the seal body (6a) is located above, the seal body (6a) and Since the outer diameters α and β of the lip portion (6b) are α> β, the light emitter (3
The projection light (36) emitted from the 4) is
The light is shielded by a), and as a result, it is detected that the mounting state of the oil seal (6) on the lifting body (30) is abnormal.
When the mounting state of the oil seal (6) on the lift body (30) is detected to be abnormal, the oil seal (6) is removed from the lift body (30) by the operator. The above operation is repeated below. Thus, in this embodiment, the oil seal (6)
It is possible to detect whether the lip part (6b) of the upper or lower position is up or down, and automatically check whether the oil seal (6) on the lifting body (30) is placed normally or abnormally. The workability can be greatly improved.

[Effect of device]

According to the present invention, one oil seal can be surely distributed in the supply path of the oil seal with a lip portion, and the position of the lip portion can be accurately determined. Therefore, the oil seal with the lip portion can be automatically and continuously supplied to the press-fitting punch or the like, the labor of the operator can be remarkably reduced, and the workability can be greatly improved. .

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the device of the present invention, and FIG. 2 is a cross-sectional view of essential parts showing a state in which an oil seal stacked and inserted into a guide rod in multiple stages is pushed up and brought into contact with a stopper. ,
FIGS. 3 (a) and (b) and FIGS. 4 (a) and (b) show the procedure for detecting the position of the lip portion of the oil seal.
FIG. 3 (a) is a longitudinal sectional view of an essential part showing a state in which an oil seal is placed on an elevating body with the lip portion protruding upward, and FIG. 3 (b) shows the lip portion upward. Plan explanatory drawing which shows the projection state of projection light at the time of protrusion, FIG. 4 (a)
Is a longitudinal sectional view of an essential part showing a state in which an oil seal is placed on an elevating body with the seal main body protruding upward, and FIG. 4 (b) is a projection when the seal main body protrudes upward. It is a plane explanatory view showing a projection state of light. FIG. 5 is a sectional view showing a conventional oil seal supply device, FIG. 6 is a sectional explanatory view showing a procedure for press-fitting an oil seal with a lip into a knuckle arm, and FIG. 7 is a sectional view showing a conventional oil seal supply device. It is a principal part sectional view for demonstrating the problem at the time of supplying the oil seal with a lip part. (6) …… Oil seal, (6a) …… Seal body,
(6b) …… Lip part, (6c) …… Outer peripheral surface, (12) …… Guide rod, (13) …… Moveable body, (22) …… Conveying rail,
(23) …… Swivel arm, (26) (26) …… Chuck claw,
(30) …… elevator, (34) …… emitter, (35) …… receiver, (36) …… projected light.

Claims (2)

[Scope of utility model registration request] 1. A guide rod in which oil seals that are held upright and have a lip portion are stacked and inserted in multiple stages, and a guide rod that is vertically movably inserted into the guide rod and that moves upward when the oil is in the uppermost stage. A movable body on which an oil seal is stacked so that the seal can be projected and held from the upper end of the guide rod, and a movable body is disposed near the guide rod so as to be rotatable around the base end portion and at the tip end thereof. It consists of a swivel arm that opens and closes a chuck claw that holds the oil seal that is projected and held from the upper end of the guide rod, and after the oil seal is gripped by the chuck claw, the top and next oil seals can be separated. An oil seal supply device characterized in that the moving body is moved downward. 2. A transport chute for transporting an oil seal having a small-diameter lip portion whose width is narrower than that of the seal body portion,
It is pierced through a predetermined part of the transfer chute so that it can move up and down, and
An oil-seal mounting portion formed on the upper surface includes an elevating body in which an oil seal is placed in a centered state at an ascending end position, and an oil seal mounting portion of an elevating body having an optical axis at the ascending end. Equipped with a light emitter and a light receiver that are offset from each other in the radial direction from the center point, and are arranged so as to allow the projected light to pass tangentially along the outer peripheral surface of the lip portion protruding above the oil seal on the lifting body. An oil seal supply device is characterized in that when the seal body of the oil seal on the elevating body projects upward, the projection light from the projector is blocked by the seal body.