JPH0753862Y2 - O-ring mounting device - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Field of Industrial Application The present invention is an O-ring for mounting an O-ring temporarily held on the outer periphery of a spindle in an annular groove formed on the surface of a work. Regarding mounting device.

(2) Conventional technology Conventionally, such an O-ring mounting device has been practically used as a Shokai 63-169223.
The one described in Japanese Patent Publication is known.

The above-mentioned O-ring attaching device makes the tip of the spindle, which temporarily holds the O-ring on the outer periphery, face the O-ring attaching groove of the work, and then mounts the O-ring on the spindle by a sleeve slidably fitted on the outer periphery of the spindle. It is adapted to be pressed along and fitted into the O-ring mounting groove.

(3) Problem to be Solved by the Invention However, in the above-described conventional O-ring mounting device, when the O-ring is mounted in the O-ring mounting groove of the workpiece and then the spindle is retracted, the O-ring once mounted is Pulled back while attached to the tip of the sleeve,
There was a case where it fell off from the O-ring mounting groove.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an O-ring mounting device that can surely mount an O-ring in a mounting groove formed in a work without damaging it.

B. Configuration of the Invention (1) Means for Solving the Problem In order to achieve the above object, the present invention provides an O-ring mounting device for mounting an O-ring in an annular groove recessed in the surface of a work, A spindle for temporarily holding the O-ring on the outer circumference of the front portion, a sleeve slidably fitted on the outer circumference of the spindle, and a tip surface of which can abut against the back of the temporarily-held O-ring, and the sleeve described above. Relative movement means for relatively moving the O-ring on the outer periphery of the spindle into the annular groove by moving the spindle relative to the spindle to a predetermined pushing position, and for attaching the O-ring to the annular groove by the sleeve, the spindle is preliminarily attached to the O-ring. The first moving means for moving the ring to the predetermined guide position capable of guiding the mounting, the spindle at the predetermined guide position and the sleeve at the predetermined push position are connected to the spindle or the spindle. A second moving means for moving a part of the front end surface of the sleeve along the surface of the work while facing the O-ring in the annular groove to leave the O-ring in the annular groove. The spindle is characterized by being provided with a grease supply hole for supplying grease to an O-ring that is temporarily held on the outer circumference of the spindle.

(2) Operation According to the present invention having the above-mentioned configuration, the spindle is moved to a predetermined guide position while the O-ring is temporarily held on the outer circumference of the sleeve, and the sleeve fitted to the outer circumference of the spindle is attached to the spindle. Move forward to the specified push-in position. Then, the O-ring whose back portion is pressed by the sleeve is guided by the spindle and pushed out from the spindle to be mounted in the annular groove of the work.

Subsequently, when the spindle at the predetermined guide position and the sleeve at the inward pushing position are moved along the surface of the work, a shearing force acts on the contact portion between the O-ring in the annular groove and the spindle or the tip of the sleeve, and the O-ring. Are forcibly separated from the sleeve and spindle (ie, forced to remain in the annular groove). Moreover, in the process of moving the spindle and the sleeve along the work surface, a part of the tip surface of the spindle or the sleeve faces the O-ring in the annular groove, so that the axial thickness of the O-ring is larger than the depth of the annular groove. The O-ring can be pressed by either the spindle end surface or the sleeve end surface, which effectively prevents the O-ring from dancing and jumping out of the annular groove. Damage to the edges of the sleeve and sleeve is avoided.

Further, since grease is supplied to the O-ring on the outer periphery of the spindle from the grease supply hole provided in the spindle,
Adhesive force is applied to the O-ring that is temporarily held on the outer periphery of the spindle, which is effective not only to prevent the O-ring in the temporarily held state from falling off the spindle, but also after the O-ring is mounted in the work annular groove. It is also effective to prevent falling off from the annular groove.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention.
The figure is an overall front view of the O-ring mounting device, and Fig. 2 is the first diagram.
II direction arrow view of the figure, FIG. 3 is a III direction arrow view of FIG. 1,
4 is a sectional view taken along line IV-IV in FIG. 1, and FIG. 5 is V in FIG.
It is a -V line sectional view.

As shown in FIGS. 1, 2 and 5, a pair of guide rails 2 provided on the upper surface of a base 1 supports a first moving table 4 via a slider 3 so that the first moving table 4 can reciprocate left and right. There is. A cylinder 6 is mounted on a mounting bracket 5 provided at one end of the base 1, and a tip of a rod 7 thereof is connected to a connecting member 8 provided on the base 1. Stopper bolts 10 and 11 are screwed to the mounting bracket 5 and the bracket 9 provided at the other end of the base 1, respectively, to restrict the left and right moving ends of the base 1.

A pair of guide rails 12 provided on the upper surface of the first moving table 4.
A second moving table 14 is supported by the slider 13 via a slider 13. The first moving table 4 is provided with a cylinder 16 via a mounting bracket 15, and the rod 17 thereof is the second moving table.
It is connected to 14. Therefore, the first moving table 4 reciprocates in the left-right direction with respect to the base 1, and the second moving table 14 reciprocates in the front-rear direction while being mounted on the first moving table 4.

A plate-shaped vertical member 18 is erected on the front end of the second moving table 14, and an inclined substrate 19 inclined at an angle of about 45 ° is fixed to the vertical member 18. Further, as apparent from FIGS. 3 and 4, a pair of guide rails are provided on the rail supporting member 20 provided along the longitudinal direction of the inclined substrate 19.
21 is provided, and the slider 22 is attached to the guide rail 21.
An elevator 23 having an L-shaped cross section is supported via. Mounting brackets 24 are provided on both left and right ends of the lifting platform 23, and a rodless type cylinder 25 is supported between the brackets 24. The output bracket 26, which moves along the side wall of the cylinder 25, is connected to the elevating table 23 so as to elevate the elevating table 23 obliquely along the guide rail 21. End members 27 are fixed to both ends of the output bracket 26, and by bringing the end members 27 into contact with stopper bolts 28 screwed to the mounting bracket 24, the upper and lower moving ends of the lifting table 23 are regulated. ing.

An O-ring mounting mechanism 30 is supported on the upper end of a pillar 29 that is erected upward on the upper surface of the lift 23. As is apparent from FIG. 2, the O-ring mounting mechanism 30 includes a cylindrical support member 31 fixed to the support column 27, and a cylinder 32 is attached to the rear portion of the support member 31, and
A sleeve 33 is fixed to the inner circumference of the front part. A spindle 34 having a slightly tapered tip is slidably fitted inside the sleeve 33, and is connected to the cylinder 32 via a rod 35 to be driven in the front-rear direction. Spindle 34
A plurality of grease supply holes 36 are opened on the side wall of the tip of the spindle 34, and are configured to give an adhesive force to the O-ring R temporarily held on the outer periphery of the spindle 34 to prevent the O-ring R from falling off.

As shown in FIG. 2, an O-ring supply mechanism 37 is provided on the right front side of the base 1 corresponding to the right end of the movement path of the O-ring attachment mechanism 30. The O-ring supply mechanism 37 includes a support member 40 having a spindle 38 capable of holding the O-ring R and a cylinder 39 attached to the outer periphery, and a sleeve 41 fitted to the outer periphery of the spindle 38 is connected to the cylinder 38. It is configured to slide back and forth. A work W is placed on the left front side of the base 1 corresponding to the left end of the movement path of the O-ring attachment mechanism 30. Work W
An annular groove G is formed on the surface of the O-ring, and an O-ring R temporarily held on the outer periphery of the spindle 34 of the O-ring mounting mechanism 30 is mounted in the annular groove G.

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

1 and 2, first, the O-ring mounting mechanism 30
Is set to the first position P1 on the right end, and its spindle
The 34 is opposed to the spindle 38 of the O-ring supply mechanism 37.
When the sleeve 41 of the O-ring supply mechanism 37 is advanced by the cylinder 39 from this state, the O-ring R held on the outer circumference of the spindle 38 is pressed by the sleeve 41 and the outer circumference of the spindle 34 of the O-ring mounting mechanism 30. It is handed over to and temporarily held. At this time, the O-ring R is prevented from coming off from the spindle 34 due to the adhesive force of the grease supplied from the grease supply hole 36 formed in the spindle 34 of the O-ring mounting mechanism 30.

Then, the cylinder 6 is extended to move the first moving table 4 leftward along the guide rails 2 to the positions indicated by the solid lines in FIGS. 1 and 2, and the second moving table 14 is placed above the first moving table 4. The O-ring mounting mechanism 30 supported via the lift 23 reaches the intermediate second position P2. Next, when the rodless type cylinder 25 provided on the tilted substrate 19 obliquely fixed to the vertical member 18 of the second moving table 14 is driven, the O-ring mounting mechanism is
The elevating table 23 supporting 30 rises diagonally along the guide rail 21, and the O-ring mounting mechanism 30 reaches the third position P3 at the left end facing the work W.

As is clear from FIG. 2 and FIG. 5, when the cylinder 16 as the first moving means is extended at the third position P3, the second moving base 14 moves forward along the guide rail 12 to the upper part thereof. The O-ring mounting mechanism 30 approaches the work W together with the lift 23 supported. As shown in FIG. 6A, when the tip of the spindle 34 of the O-ring mounting mechanism 30 comes into contact with the center of the annular groove G recessed in the surface of the work W,
The cylinder 32 as the relative moving means contracts in synchronization with the extension speed of the cylinder 16 for advancing the O-ring attachment mechanism 30. As a result, the tip of the spindle 34 makes the work W
While the sleeve 33 is in contact with the surface of the work piece 34, the sleeve 33 advances relatively to the spindle 34 to a predetermined pushing position Y, and the O-ring R temporarily held by the spindle 34 is pushed out at its tip to be mounted in the annular groove G of the work W. To do. During this time, the spindle 34
The O-ring R, which is at a predetermined guide position X capable of guiding the mounting of the ring R in the annular groove G, that is, the O-ring R pressed against the tip surface of the sleeve 33 is guided to the outer periphery of the tip of the spindle 33 and smoothly moves into the annular groove G. O-ring R into the groove G because it can move to
Can be properly attached.

Next, when the rodless type cylinder 25 as the second moving means is driven to lower the elevating table 23, as shown in FIG. 6 (b), the O-ring mounting mechanism 30 has its spindle 34 and sleeve. The O-ring R is left inside the annular groove G of the work W while moving a part of the tip end surface of 33 while sliding on the surface of the work W. At this time, even if the O-ring R tries to adhere to the tip of the spindle 34 or the sleeve 33, the spindle 34 and the sleeve are not contacted with each other.
The O-ring R can be forcibly left in the annular groove G by a shearing force caused by the lateral movement of the 33, acting as an O-ring R.
It is effective to prevent the falling off from the annular groove G. Moreover, in the movement process of the spindle 34 and the sleeve 33 along the work surface, part of the tip end surface of the spindle 34 or the sleeve 33 is made to face the O-ring R in the annular groove G. Even if the thickness in the axial direction is larger than the depth of the annular groove G, the O-ring R can be pressed by either the end surface of the spindle 34 or the end surface of the sleeve 33, so that the O-ring R dances out of the annular groove G. That is, the O-ring can be installed on the spindle 34 and the sleeve 33.
Damage at the edges of the is effectively avoided.

When the O-ring mounting mechanism 30 returns to the second position P2 after the lowering of the lifting platform 23 is completed, the cylinder 16 is contracted to move the second position P2.
The movable table 14 is retracted, the cylinder 32 is extended, and the spindle 34 is advanced to the original position with respect to the sleeve 33. Subsequently, the cylinder 6 is contracted to move the first moving table 4 to the right, and the O-ring attachment mechanism 30 is returned to the first position P1 facing the O-ring R supply mechanism 37, thus completing one cycle.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made without departing from the present invention described in the scope of claims for utility model registration. It is possible to

For example, the spindle 34 and sleeve of the O-ring mounting mechanism 30
As means for relatively moving the 33, instead of retracting the spindle 34 by the cylinder 32 with respect to the sleeve 33 fixed to the support member 31, the spindle 34 is fixed to the support member 31, and the cylinder 32 is fixed to the spindle 34. With sleeve 33
May be relatively advanced. Further, as means for moving the spindle 34 and the sleeve 33 along the surface of the work W, the cylinder 25 is used to move the O-ring mounting mechanism 30 obliquely downward, and instead, the cylinder 6 is used to move the O-ring mounting mechanism 30. May be moved laterally.

C. Effect of the Invention According to the above-described invention, after the spindle is moved to the predetermined guide position while the O-ring is temporarily held on the outer circumference of the sleeve, the sleeve fitted on the outer circumference of the spindle is fixed to the spindle. By advancing to the pushing position, the O-ring that is pressed against the sleeve tip surface is pushed out from the spindle while being guided by the spindle and mounted in the annular groove of the work. After the mounting, the spindle and the sleeve are attached to the surface of the work. Since the O-ring mounted on the annular groove tries to adhere to the spindle or the sleeve, a shearing force acts on the contact portion due to the movement of the spindle and the sleeve along the work surface, and the O-ring is moved along the workpiece surface. Can be forcibly left in the annular groove, which is effective in preventing the O-ring from falling out of the annular groove. Moreover, in the process of moving the spindle and the sleeve along the work surface, a part of the tip surface of the spindle or the sleeve is made to face the O-ring in the annular groove, so that the axial thickness of the O-ring is equal to that of the annular groove. Even if the O-ring is larger than the depth, the O-ring can be pressed by either the spindle end surface or the sleeve end surface, and therefore the O-ring can be effectively prevented from dancing and jumping out of the annular groove. Damage to the O-ring at the spindle or sleeve edges is avoided.

Further, since grease can be supplied to the O-ring on the outer circumference of the spindle from the grease supply hole provided on the spindle, the O-ring temporarily held on the outer circumference of the spindle is given an adhesive force so that the O-ring in the temporary holding state can be provided. It is possible to effectively prevent the ring from falling off the spindle, and moreover, by mounting the O-ring with the grease adhered to the annular groove of the work, the O-ring can also be effectively removed from the annular groove. Can be prevented.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention.
The figure is an overall front view of the O-ring mounting device, and Fig. 2 is the first diagram.
II direction arrow view of the figure, FIG. 3 is a III direction arrow view of FIG. 1,
4 is a sectional view taken along line IV-IV in FIG. 1, and FIG. 5 is V in FIG.
FIG. 6 is a cross-sectional view taken along line -V and is an explanatory view of the operation. C ... Annular groove, R ... O-ring, W ... Work, X ... Predetermined guide position, Y ... Predetermined pushing position, 16 ... Cylinder as first moving means, 25 ... Cylinder as second moving means, 32 ...
Cylinder as relative moving means, 33 ... Sleeve, 34 ... Spindle, 36 ... Grease supply hole

Claims (1)

[Scope of utility model registration request] 1. An O-ring mounting device for mounting an O-ring (R) in an annular groove (G) recessed in the surface of a work (W), wherein the O-ring (R) is temporarily held on the outer circumference of the front part. Spindle (34), a sleeve (33) slidably fitted to the outer periphery of the spindle (34), and the tip end surface of which can abut against the back of the temporarily held O-ring (R), and this sleeve. Relative moving means (32) for moving the (33) relative to the spindle (34) to a predetermined pushing position (Y) to mount the O-ring (R) on the outer periphery of the spindle (34) in the annular groove (G). And when mounting the O-ring (R) in the annular groove (G) by the sleeve (33), the spindle (34) is previously
First moving means (16) for moving to a predetermined guide position (X) capable of guiding the mounting of the O-ring (R), the spindle (34) and the predetermined push position at the predetermined guide position (X). The surface of the work (W) while the sleeve (33) of (Y) faces the O-ring (R) in the annular groove (G) with a part of the tip surface of the spindle (34) or the sleeve (33). Along the O-ring (R)
And a second moving means (25) for allowing the oil to remain in the annular groove (G), and the spindle (34) supplies grease to the O-ring (R) temporarily held on the outer periphery of the spindle (34). An O-ring mounting device, characterized in that it is provided with a grease supply hole (36).