JP2540363Y2 - Oil application equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil applicator for applying oil to a ring-shaped oil seal while the oil seal is being supplied by a pusher along a conveying path.

[0002]

2. Description of the Related Art Conventionally, as a device for press-fitting a ring-shaped oil seal into an annular groove of an assembly, an expandable collet holding an inner periphery of the oil seal is provided at the center of the annular groove of the assembly. An oil seal is known in which the oil seal is pushed into the annular groove from the collet by a press-fit head which is axially slidably fitted to the outer periphery of the collet after the coaxial positioning is performed (Japanese Patent Laid-Open No. 61-209827). Reference).

In such an oil seal press-fitting device, it is necessary to apply oil to the outer periphery of the oil seal in advance in order to smoothly push the oil seal into the annular groove of the assembly. Therefore, conventionally, a method of directly applying the oil to the oil seal or indirectly applying the oil by passing the oil seal through the inside of a ring-shaped member that has leaked with the oil has been adopted.

[0004]

However, it is difficult to apply the oil uniformly to the outer periphery of the oil seal by any of the above-mentioned conventional methods, which may hinder the press-fitting operation of the oil seal. was there.

The present invention has been made in view of the above circumstances, and has as its object to provide an oil application device for uniformly applying oil to the outer periphery of an oil seal press-fit into an annular groove of an assembly. I do.

[0006]

In order to achieve the above object, the present invention applies oil to a ring-shaped oil seal while the oil seal is supplied along a conveyance path by being pressed by a pusher. An oil application device, wherein the pusher rotatably supports a roller that simultaneously contacts one side wall of the conveyance path and the outer periphery of the oil seal,
A first feature is that a plurality of nozzles for ejecting oil are provided inside the transport path, and the oil ejected from the nozzles is applied to the outer periphery of an oil seal that moves while rotating by a roller provided on the pusher. .

The present invention has a second feature in that, in addition to the first feature described above, a scraper is provided on the lower surface of the pusher so as to be in sliding contact with the bottom of the transport path.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 to 7 show an embodiment of the present invention. FIG. 1 is an overall side view of an oil seal supply device, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 3-3 section view of
4 is a sectional view taken along line 4-4 of FIG. 3, FIG. 5 is an enlarged view of a main part of FIG. 1, FIG. 6 is a sectional view taken along a line 6-6 of FIG. 5, and FIG.

As shown in FIGS. 1 and 2, the oil seal supply device takes out one oil seal storage mechanism 1 from the oil seal storage mechanism 1 for holding a large number of ring-shaped oil seals W in a stacked state. An oil seal transport mechanism 2, which transports the oil seal W in a horizontal posture and applies oil to the outer periphery of the oil seal W in the transport path;
Provided at an intermediate portion in the longitudinal direction of the oil seal transport mechanism 2,
An oil seal front / back check mechanism 3 for checking the front and back of the conveyed oil seal, an oil seal reversing mechanism 4 for turning the oil seal W conveyed in a horizontal posture to a vertical posture and supplying the oil seal W downward, and an oil seal W for a vertical posture. And an oil seal delivery mechanism 5 for receiving the oil seal W from the oil seal delivery mechanism 5 and transporting the oil seal W to the assembly.

The transport path 11 of the oil seal transport mechanism 2 is
A base plate 13 is provided on the upper surface of a base 12 erected on a floor surface, and is formed of a long plate-like member having a transfer groove 11a for guiding the oil seal W along the longitudinal direction of the upper surface.
, And its tip is supported between a pair of side plates 15 provided on the left and right sides of a base 14 erected on the floor.

The oil seal storage mechanism 1 is provided in the conveying path 1.
Guide member 1 provided so as to cover the upper part on the base end side of 1
6, a plurality of guide posts 17 erected on the upper surface of the guide member 16, and a weight member 18 provided vertically movably along the guide posts 17. The space formed between the guide posts 17 passes through the inside of the guide member 16 and reaches the transport groove 11a of the transport path 11, and a number of oil seals W stored in the space are directed downward by the weight member 18. Is pressed. Therefore, the lowermost oil seal W is always located inside the conveying groove 11a, and when the oil seal W is pushed out by a pusher described later, the next oil seal W descends and moves down the conveying groove 11a.
a. The oil seal storage mechanism 1 includes upper and lower two sensors 20 and 21 provided on a stay 19, and these sensors 20 and 21 use the flange 1 of the weight member 18.
By detecting 8a, the upper and lower limits of the storage amount of the oil seal W are confirmed.

Next, the structure of the oil seal transport mechanism 2 will be described in detail with reference to FIGS. 3 and 4. The oil seal transport mechanism 2 includes a cylinder 22 disposed in parallel below the transport path 11, and the tip of an output rod 22 a thereof is connected via a connecting member 24 to a pusher 23 that presses and transports the oil seal W. You. The pusher 23 has a narrow lower plate 23b that engages with an oil groove 11b formed one step lower at the bottom of the transport groove 11a of the transport path 11, and a slightly wider plate that is coupled to the upper surface thereof and engages with the transport groove 11a. The lower plate 23b is slidably supported by a plurality of slide guides 25 provided on the substrate 13. An oil groove 1 is provided at the lower end of the lower plate 23b of the pusher 23.
A scraper 26 made of an elastic material is provided for scraping oil accumulated inside 1b.

A driven roller 27 for pressing the oil seal W is pivotally supported at the center of the distal end of the pusher 23, and a drive head 28 provided at the distal end of the pusher 23 is in contact with the left side wall of the transport groove 11 a. A roller 29 is supported. The drive roller 29 rotates by the reaction force received from the left side wall of the transport groove 11a with the movement of the pusher 23. The driving roller 29 and the driven roller 27
1a, the right side and the left side of the oil seal W in the conveying direction are supported by the right side wall of the conveying groove 11a and the driving roller 29, respectively. The rear surface of W is driven roller 27
Supported by

Downstream of the conveying path 11, three nozzles 30 are provided so as to open to the right side wall of the conveying groove 11a, and an oil seal W passing from the nozzle 30 through the conveying path 11 is provided.
Oil is sprayed toward.

Reference numerals 31 and 32 in FIG. 2 denote sensors for detecting the forward and backward ends of the pusher 23 and controlling the driving of the cylinder 22. 2 to 4
Reference numeral 33 denotes a stopper pin for positioning provided on the supply head 28 so as to be located inside the auxiliary groove 11c formed one step lower along the left side of the transport groove 11a.

As shown in FIGS. 1 and 2, the oil seal front / back confirmation mechanism 3 includes a positioning rod 36 connected to a cylinder 34 provided on the left side of the transport path 11 via a connecting member 35. The positioning rod 36 protrudes into the transport path 11 to regulate the front end of the oil seal W supplied by the pusher 23, and at the same time, abuts the stopper pin 33 provided on the supply head 28 to stop the movement of the pusher 23. A detection cup 39 for detecting the front and back of the oil seal W is supported on an output rod 38 a of a cylinder 38 provided on an upper portion of a frame body 37 spanning the transport path 11 via a spring 40 so as to be vertically movable. The output rod 38a of the cylinder 38 is provided with a sensor 42 via a stay 41. The sensor 42 detects the rising distance of the detection cup 39 in contact with the oil seal W to determine the front and back of the oil seal W.

As shown in FIGS. 5 and 6, the oil seal reversing mechanism 4 includes a motor 43 supported on one wall surface of a pair of left and right side plates 15 located at the front end of the transport path 11. The rotating shaft 43a of the motor 43 supports a reversing head 44 having a retaining structure 44a for retaining the oil seal W therein, between a horizontal position regulated by a stopper bolt 45 and a vertical position regulated by a stopper bolt 46. At 90 °
Rotate over. When the reversing head 44 is in the horizontal position, the holding groove 44 a is linearly connected to the tip of the transport path 11, and the oil seal W is received from the transport path 11 by the pressing force of the pusher 23 into the holding groove 44 a of the reversing head 44. Passed. At this time, a positioning rod 49 connected via a connecting member 48 to a cylinder 47 provided on the other side plate 15 projects into the holding groove 44a of the reversing head 44 (see FIG. 2), and the above-described oil seal front / back confirmation mechanism 3 The oil seal W is positioned in the same manner as described above. The oil seal W inside the holding groove 44a is held inside the holding groove 44a by a frictional force acting between the oil seal W and the holding member 50 made of an elastic material.

A dispensing rod 53 is provided on a cylinder 52 which is supported downward on a left and right side plate 15 via a bracket 51 and which can protrude into a holding groove 44a of the reversing head 44 at a vertical position. Further, right and left guide members 54 for guiding the oil seal W pushed out by the payout rod 53 from the holding groove 44a are provided below the reversing head 44.

As shown in FIG. 5 and FIG. 7, an oil seal is provided on a guide rail 55 which is disposed from the lower portion of the oil seal reversing mechanism 4 to the oil seal press-fitting mechanism 6 so as to be orthogonal to the conveying path 11. A slide base 56 of the transfer mechanism 5 is supported by a cylinder (not shown) via a slide guide 57 so as to be reciprocally movable. Slide base 56
A holding block 61 in which a guide rod 60 is slidably engaged with an upper and lower guide cylinder 59 on a vertical substrate 58 provided upright
Is supported. A delivery head 62 is slidably engaged inside the holding block 61, and a spring 63 is contracted between the holding block 61 and the delivery head 62.
Output rod 64a of cylinder 64 provided on vertical substrate 58
Is connected to one end of a link 66 whose intermediate portion is pivotally supported by the bracket 65, and the other end of the link 66 is connected to the delivery head 62.

As is apparent from FIG. 6, the holding block 6
An arc-shaped support portion 61a for supporting a lower half portion of the oil seal W is formed at a lower portion of the end surface of the pair 1 and a pair of flexible synthetic resin made of a flexible synthetic resin having upper ends fixed to pins 67 on both left and right sides. A holding member 68 is provided. Usually, the holding member 6
8 is restricted by the stopper bolt 69 and is at the position shown by the solid line. However, when the oil seal W falls from the guide member 54, the oil seal W expands right and left to the position shown by the chain line due to its weight, and the support portion 61a The oil seal W is held in cooperation.

As shown in FIGS. 2 and 7, the oil seal press-fitting mechanism 6 is supported by a guide
1 is provided with a press-fit head 72 driven forward and backward. The press-fit head 72 is disposed at a position facing the oil seal W held by the holding block 61 when the slide base 57 moving along the guide rail 55 comes into contact with the stopper bolt 73 and stops. Then, on the opposite side of the oil seal press-fitting mechanism 6 with the oil seal transfer mechanism 5 interposed therebetween,
An assembly 74 having an annular groove 74a to which the oil seal W is to be mounted is positioned and fixed.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

1 and 2, when the cylinder 22 of the oil seal transport mechanism 2 is contracted and the pusher 23 sliding inside the transport path 11 is driven leftward, the distance between the guide columns 17 of the oil seal storage mechanism 1 is reduced. Of the many oil seals W stacked in the stack, the lowermost oil seal W is separated and pushed out by the pusher 23. At this time, the right side surface and the left side surface of the oil seal W in the conveying direction are supported by the right wall of the conveying groove 11a and the driving roller 29 and pressed by the driven roller 27, but the driving roller 29 is placed on the left wall of the conveying groove 11a. Since the oil seal W abuts and rolls on the drive roller 29, the oil seal W abuts on the drive roller 29 and advances in the transport groove 11 a by the pressing force of the driven roller 27 while being rotated by the drive roller 29. In addition, since the driven roller 27 contacts the rotating oil seal W, the driven roller 27 also rotates to rotate the oil seal W freely.

When the oil seal W reaches the lower part of the oil seal front / back confirmation mechanism 3, the cylinder 34 contracts and the positioning rod 36 protrudes into the transport path 11 to temporarily stop the oil seal W at that position. . Subsequently, the cylinder 38 is extended, the detection cup 39 is lowered, and comes into contact with the upper portion of the stopped oil seal W. At this time, since the shape of the front and back of the oil seal W is slightly different, if the oil seal W is turned upside down, the detection cup 39 cannot be fitted to the outer periphery of the oil seal W, and the detection cup 39 Is the output rod 38 while compressing the spring 40.
It rises relatively to a. Thereby, the sensor 42
Operates to detect that the oil seal W is in an inverted state. On the other hand, if the oil seal W is in the normal face up position, the detection cup 39 descends integrally with the output rod 38a and fits into the oil seal W, so that the sensor 42 does not output an abnormal signal.

When the front and back of the oil seal W are confirmed, the positioning rod 36 retreats again, and the oil seal W is again pushed forward by the pusher 23 while rotating. At this time, the oil is ejected from the three nozzles 30 provided in the transport path 11 and uniformly adheres to the outer circumference of the oil seal W which advances while rotating. Excess oil that has not adhered to the oil seal W accumulates in the oil groove 11b of the transport path 11,
The oil is scraped out by a scraper 26 provided on the lower surface of the pusher 23.

The oil seal W having the oil applied to the outer periphery as described above is further pressed by the pusher 23 and supplied to the oil seal reversing mechanism 4 shown in FIGS. 5 and 6, where the reversing head 44 is in a horizontal posture. Supplied inside. At this time, if the oil seal W is in the correct face up position, the positioning rod 4 which is advanced and retracted by the cylinder 47 is used.
9 protrudes into the holding groove 44a, and the positioned oil seal W is held in the holding groove 44a by the elasticity of the holding member 50.
To fit inside. On the other hand, if the oil seal W is turned over, the positioning rod 49 remains retracted, and the oil seal W pressed by the pusher 23 is discharged to the outside through the inside of the holding groove 44a of the reversing head 44.

Reversing head 44 holding oil seal W
Is rotated 90 ° from the horizontal position to the vertical position by the motor 43, the cylinder 52 is extended, the dispensing rod 53 protrudes into the reversing head 44, and the oil seal W held by the elasticity of the holding member 50 is moved from the holding groove 44a. Discharge downward. The oil seal W separated from the reversing head 44 is guided by the guide member 54, and falls toward the holding block 61 of the oil seal transfer mechanism 5 waiting below the guide member 54.
Then, the pair of holding members 68 provided on the holding block 61 expand right and left by the weight of the oil seal W, and hold the oil seal W in cooperation with the arc-shaped support portion therebelow.

The oil seal transfer mechanism 5 that has received the oil seal W moves along the guide rail 55 from the position shown in FIG. 2, and stops at the position shown in FIG. Subsequently, the cylinder 64 is extended to extend the link 6
When swinging is performed, the delivery head 62 holding the oil seal W and the holding block 61 integrally move toward the press-fit head 72. When the cylinder 64 is further extended, only the transfer head 62 is further moved while compressing the spring 63, and the pushed oil seal W is moved to the press-fit head 7
Handed over to 2. When the oil seal delivery mechanism 5 that has completed the delivery of the oil seal W returns to the original position, the cylinder 71 extends and the press-fit head 72 holding the oil seal W moves forward, and the oil seal is inserted into the annular groove 74 a of the assembly 74. Press in W. At this time, since the oil is uniformly applied to the outer periphery of the oil seal W, the mounting operation is performed smoothly.

Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above-described embodiments, and does not depart from the present invention described in the claims for utility model registration.
Various small design changes can be made.

For example, the supply head 28 of the pusher 23
Is not always necessary, and can be omitted.

[0032]

As described above, according to the first feature of the present invention, when the oil seal pressed by the pusher moves along the transport path, the oil seal is provided on the pusher and the oil seal is provided on the side wall of the transport path. The oil seal moves forward while rotating due to the action of the roller that comes into contact with the oil seal at the same time, so that the oil ejected from the nozzle can be uniformly applied to the outer periphery of the oil seal. Further, since the rotation of the oil seal is performed without using a special driving source, there is no problem that the structure becomes complicated and the cost increases.

According to the second feature of the present invention, of the oil ejected from the nozzle, the surplus oil that has not adhered to the oil seal can be automatically discharged from the conveying groove by the scraper provided in the pusher. it can.

[Brief description of the drawings]

FIG. 1 is an overall side view of an oil seal supply device.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 3;

FIG. 5 is an enlarged view of a main part of FIG. 1;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is an enlarged view of a main part of FIG. 2;

[Explanation of symbols]

 11. Conveyance path 23. Pusher 26. Scraper 29. Roller (drive roller) 30. Nozzle W: Oil seal

Claims (2)

(57) [Scope of request for utility model registration] An oil application device for applying oil to the oil seal (W) while the oil seal (W) having a ring shape is pressed by a pusher (23) and supplied along the transport path (11). In addition, a roller (29) that simultaneously contacts one side wall of the transport path (11) and the outer periphery of the oil seal (W) is rotatably supported by the pusher (23), and the pusher (23) A plurality of nozzles (30) for jetting oil are provided inside the pusher (23).
An oil applying device for applying oil spouted from said nozzle (30) to the outer periphery of an oil seal (W) which moves while rotating by a roller (29) provided in said oil applying device. 2. The oil application device according to claim 1, wherein a scraper (26) is provided on a lower surface of the pusher (23) to be in sliding contact with the bottom of the transport path (11).