KR20170077445A

KR20170077445A - Automatic apparatus for assemblying of o-ring

Info

Publication number: KR20170077445A
Application number: KR1020150187331A
Authority: KR
Inventors: 신은선
Original assignee: 티티이 주식회사
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2017-07-06
Also published as: KR101774787B1

Abstract

The present invention relates to an O-ring automatic assembling apparatus, and more particularly, to an O-ring automatic assembling apparatus capable of automatically securing an O-ring to an outer diameter of a shaft member and preventing the O-ring from being damaged.
The O-ring automatic assembling apparatus 1000 according to the present invention is configured to move the cylinder block in the axial direction by the fluid supplied to both ends of the pick-up chamber, A pick-up rod 1320 is provided so as to protrude from the center of the shaft of the member in the direction opposite to the pick-up cylinder, a pick-up means 1300 capable of holding an O-ring on the end of the pick- The expansion cylinder 1410 is installed in the expansion chamber so as to move in the axial direction by the fluid supplied to both ends of the expansion chamber while being inserted into the expansion chamber 1420. The tip of the expansion tube 1420 surrounds the outer peripheral surface of the pickup means, The strip cylinder is provided in the strip chamber and the strip cylinder is moved in the axial direction by the fluid supplied to both ends of the strip chamber. The strip tube 1520 is installed so as to protrude from the opposite frame of the pick-up cylinder, and the end portion of the strip tube moves in the axial direction so that the O-ring inserted into the expansion means And strip means 1500 that can be pushed and assembled to the shaft member.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic o-

More particularly, the present invention relates to an O-ring automatic assembling apparatus, and more particularly, to an O-ring automatic assembling apparatus capable of automatically gripping an O-ring so as to be automatically fitted to an outer diameter of a shaft member, To an automatic assembly apparatus.

In general, a shaft member is attached to a variable displacement compressor for compressing a refrigerant gas in a refrigeration cycle of an automotive air conditioner, and a plurality of O-rings are provided on the outer circumferential surface of the shaft member.

Conventionally, since the O-ring is manually assembled to the outer circumferential surface of the shaft member by the coupler, the operator needs labor hard to perform the O-ring insertion operation. As a result, the efficiency of work is lowered and the productivity is lowered.

On the other hand, Korean Patent Laid-Open Publication No. 10-1997-0020295 discloses an automatic o-ring assembly device for automatically assembling such o-rings, and a plurality of divided check boxes are expanded or narrowed, .

However, since the O-ring automatic assembling apparatus has a problem in that the O-ring is broken when the O-ring is gripped due to the O-ring being assembled by grasping the O-ring as the split check bar is opened, the defect rate is high and the productivity is decreased. There is a problem that the depth insertion can not be performed.

Reference Document: Korean Patent Laid-Open Publication No. 10-1997-0020295 entitled "Automatic O-ring Assembly Device ".

It is an object of the present invention to provide an O-ring automatic assembling apparatus and a method of manufacturing the O-ring automatic assembling apparatus, which are capable of automatically gripping an O- The present invention has been made in view of the above problems.

According to an aspect of the present invention, there is provided an automatic O-ring assembly apparatus including: a frame mounted on a stand of a mechanical device; A cylinder block assembled so as to be partitioned into a pickup chamber, an expansion chamber and a strip chamber, in which fluid is introduced and discharged while being guided and positioned inside the frame; A pick-up cylinder installed in the pick-up chamber and having one end fixed to the frame to move the cylinder block in the axial direction by a fluid supplied to both ends of the pick-up chamber; A pick-up rod fixed to be projected from a center of the partition member in a direction opposite to the pick-up cylinder, pickup means for holding an O-ring on the end of the pick-up rod; An expansion cylinder installed in the expansion chamber in such a manner that the center of the shaft is fitted to the pickup rod and moved in the axial direction by a fluid supplied to both ends of the expansion chamber, The tip of the expansion tube provided so as to protrude from the frame opposite to the pick-up cylinder with the axis of the shaft inserted into the pickup rod in the direction opposite to the direction in which the cylinder is installed can be moved in the axial direction while surrounding the outer peripheral surface of the pickup means; A strip cylinder installed in the strip chamber so as to be axially centered on the expansion tube and adapted to move in the axial direction by a fluid supplied to both ends of the strip chamber; The strip tube is provided so as to protrude from the frame opposite to the pick-up cylinder by being inserted into the expansion tube in the opposite direction, and the end portion of the strip tube is moved in the axial direction to push the O-ring fitted into the expansion means, And a stripping means adapted to allow the stripping of the strip.

The pick-up means includes a pickup guide tip which is detachably assembled to an end portion of the pickup rod and whose end portion has a small diameter and the rear portion has a large diameter so as to be fitted into the inner circumferential surface of the O-ring.

The expansion means includes an expansion cylinder tube tip which is assembled at the tip of the expansion tube and can move a certain length in the axial direction while surrounding the outer circumferential surface of the pickup guide tip.

The stripping means is assembled to the end of the strip tube, and moves in the axial direction while wrapping the outer circumferential surface of the tube tip of the expansion cylinder, thereby pushing the O-ring fitted to the tip of the tube of the expansion cylinder, And includes a strip tube tip.

And a strip tube guiding bush is further provided for guiding the strip tube when the strip cylinder of the strip means is fitted in the center of the axial direction and the strip cylinder is moved by the fluid, in addition to being fixed to the end of the frame.

As described above, according to the O-ring automatic assembling apparatus of the present invention, since the O-ring can be automatically fitted to the outer diameter of the shaft member by grasping the O-ring with a mechanized device, no damage is caused to the O-ring, have.

According to the O-ring automatic assembling apparatus of the present invention, the tip of the pick-up guide and the tip of the expansion cylinder tube constituting the expansion means and the tip of the expansion cylinder tube constituting the strip means are detachably attached to the end of the pick- So that the manufacturing can be facilitated.

According to the O-ring automatic assembling apparatus of the present invention, the strip tube guide bush is installed at the end of the frame, and the cylinder block can be easily guided up and down, and wear of the frame can be prevented.

According to the automatic O-ring assembly apparatus of the present invention, the O-ring can be inserted deeply at the end of the shaft member.

1 is a perspective view of an automatic O-ring assembling apparatus according to an embodiment of the present invention,
Fig. 2 is a front view of Fig. 1,
Fig. 3 is a rear view of Fig. 1,
Fig. 4 is a left side view of Fig. 1,
Fig. 5 is a right side view of Fig. 1,
Fig. 6 is a plan view of Fig. 1,
Fig. 7 is a bottom view of Fig. 1,
8 is an explanatory view showing a state in which the O-ring automatic assembling apparatus of the present invention is mounted on a frame of the machine,
9 (A) to 9 (D) are explanatory diagrams of frames constituting the O-ring automatic assembling device of the present invention,
Fig. 10 is an explanatory diagram of a pick-up cylinder constituting the o-ring automatic assembling apparatus of the present invention,
11A and 11B are explanatory diagrams of a pickup guide tip constituting the O-ring automatic assembling device of the present invention,
12 is an explanatory diagram of an expansion cylinder constituting the O-ring automatic assembling apparatus of the present invention,
13A and 13B are explanatory diagrams of an expansion cylinder tip constituting the O-ring automatic assembling device of the present invention,
Fig. 14 is an explanatory diagram of a strip cylinder constituting the o-ring automatic assembling apparatus of the present invention,
15A and 15B are explanatory diagrams of a strip cylinder tip constituting the O-ring automatic assembling device of the present invention,
16 is a sectional view showing an initial state in which the O-ring automatic assembling apparatus according to the embodiment of the present invention is moved to a position where the O-ring is placed,
17 is a sectional view showing a state in which a pick-up cylinder constituting an automatic O-ring assembling apparatus of the present invention advances and an O-ring is held by an expansion cylinder tip;
18 is a cross-sectional view showing a state in which a pick-up cylinder constituting an O-ring automatic assembling apparatus of the present invention is reversed and an O-ring is moved to an assembling position of a shaft member in a state in which a pick-
19 is a cross-sectional view showing a state in which the expansion cylinder tip of the expansion ring cylinder moves forward to be fitted into the shaft member in a state where the expansion cylinder of the automatic O-
20 is a sectional view showing a state in which a strip cylinder constituting the O-ring automatic assembling apparatus of the present invention advances and a strip cylinder tip is pushed from the tip of an expansion cylinder into a groove of a shaft member and assembled;
21 is an explanatory diagram showing a state in which the automatic O-ring assembling apparatus of the present invention is moved to a standby position for gripping an O-ring supplied by a feeder.

Hereinafter, an automatic O-ring assembly apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, the same reference numerals are given to the same elements even when they are shown in different drawings. In the drawings, the same reference numerals as used in the accompanying drawings are used to designate the same or similar elements. And detailed description of the configuration will be omitted. Also, directional terms such as "top", "bottom", "front", "back", "front", "forward", "rear", etc. are used in connection with the orientation of the disclosed drawing (s). Since the elements of the embodiments of the present invention can be positioned in various orientations, the directional terminology is used for illustrative purposes, not limitation.

The automatic O-ring assembly apparatus 1000 of the present invention includes a frame 1100 mounted with a fastening means such as a bolt (not shown) on the stand A of the machine, as shown in Figs. 1 to 8, 1200, a pick-up means 1300, an expansion means 1400 and a strip means 1500.

The frame 1100 includes two side plates 1110 and 1120 fixed on the stand A with a predetermined gap therebetween and the pickup means 1300 and the expansion means 1400 and the strip means A guide plate 1130 assembled at one end of the side plates 1110 and 1120 with a fastening screw to guide the side plates 1110 and 1120 and a fixing plate 1140 assembled at the other end of the side plates 1110 and 1120 with fastening screws.

The guide plate 1130 is further provided with a strip tube guide bush 1150 which is inserted in the axial direction center so as to guide the strip means 1500.

In addition, a pickup cylinder fastening hole 1141 is formed in the fixing plate 1140 so as to fix a pick-up cylinder described later of the pick-up means 1300, and a pick-up cylinder fitting groove 1142 is formed for firmly fixing the pick- Can be formed.

The frame 1100 is fixed to the stand A of the machine and is located inside the cylinder block 1200 and is firmly fixed together with the pickup means 1300, the expansion means 1400 and the strip means 1500, Direction.

In addition, a strip tube guide bush 1150 is provided at the end of the frame 1100 to easily guide the cylinder block 1200 up and down, and to prevent wear of the frame 1100, thereby facilitating maintenance and repair.

The cylinder block 1200 includes first, second and third chamber members 1260 and 1260 so as to be divided into a pickup chamber 1210, an expansion chamber 1220, and a strip chamber 1230 from a side where the fixing plate 1140 is present. 1270 and 1280 are partitioned by the first and second partitioning members 1240 and 1250 so that fastening means not shown in the axial direction are connected and assembled to the four corners and the first and third chamber members 1260 and 1280, The first and second chamber forming members 1291 and 1292 are assembled.

Fluid inlet and outlet valves 1201 to 1206 are installed at both ends of the pickup chamber 1210, the expansion chamber 1220, and the strip chamber 1230.

The pick-up chamber 1210, the expansion chamber 1220 and the strip chamber 1230 are provided with first and second partition members 1240 and 1250 and first and second chamber forming members 1291 and 1292 The first and second chamber forming members 1291 and 1292 are installed in the first and third chamber members 1260 and 1280 by a stop ring It is assembled.

The cylinder block 1200 is connected to the pickup chamber 1210, the expansion chamber 1220 and the strip chamber 1230 to allow the pickup means 1300, the expansion means 1400 and the strip means 1500 to move forward and backward, ).

8-11, the pickup unit 1300 is installed in the pickup chamber 1210 and one end of the pickup unit 1300 is fixed to the fixing plate 1140 of the frame 1100, A pickup cylinder 1310 sealed to move the cylinder block 1200 in the axial direction by a fluid supplied to both ends of the cylinder block 1200 and a first partition member 1240 for separating the pickup chamber 1210 and the expansion chamber 1220 A pickup rod 1320 fixed to be protruded toward a guide plate 1130 which is a frame 1100 in the opposite direction provided with a pick-up cylinder 1310 at the center of the axis of the pickup ring 1300; And a pickup guide tip 1330 whose end portion is small in diameter and whose rear portion is large in diameter so as to be fitted into the pickup guide tip 1330.

One end of the pick-up bar 1320 is inserted into a groove 1241 formed at the center of the first partition member 1240 and is fastened to the first partition member 1240 And a screw portion 1321 for fastening with the pickup guide tip 1330 is formed at an axial center end of the other end.

The pick-up guide tip 1330 includes a threaded portion 1331 fastened to the threaded portion 1321 and a wedge-shaped O-ring insertion tip 1332 extending in a state of being enlarged at one end of the threaded portion 1331, (1332).

A hexagonal groove 1332a is formed at the center of the axis of the O-ring insertion team 1332 so that it is easy to assemble the pickup guide tip 1330 with a wrench when assembling the pickup guide tip 1330 to the pickup rod 1320.

Therefore, when fluid is supplied to the fluid inlet / outlet valve 1202 of the pick-up means 1300 in the standby state of FIG. 16, as shown in FIGS. 8, 10, 11 and 16 to 17, The inner diameter of the O-ring is gripped by the tip 1332 of the pick-up guide tip 1330 and gripped.

In addition, the pickup guide tip 1330 can be separately detachably assembled to the end of the pickup rod 1320 constituting the pickup means 1300, thereby facilitating manufacture.

As shown in FIGS. 1 to 8, 12, and 13, the expansion unit 1400 is installed in the expansion chamber with its axis centered on the pickup rod 1320, An expansion cylinder 1410 which is moved in the axial direction by the fluid to be supplied, and an expansion cylinder 1410 which is assembled to the center of the axis of the expansion cylinder and which is axially centered on the pickup rod in a direction opposite to the direction in which the pick- And an expansion cylinder tube tip 1430 which is installed at the tip of the expansion tube and which can move a certain length in the axial direction while surrounding the outer circumferential surface of the pick-up guide tip do.

A through hole 1411 is formed in the center of the axis of the expansion cylinder 1410 in the vicinity of the first partition member 1240 so as to receive the pickup rod 1320. In the opposite side of the through hole, A threaded portion 1412 to which the pension tube 1420 is fastened is formed.

The expansion tube 1420 is formed with a pickup rod fitting hole 1421 so that the pickup rod 1320 is fitted in the axial center thereof and is connected to the threaded portion 1412 of the expansion cylinder 1410 A male screw portion 1422 is formed at an end of the expansion cylinder 1422 and a female screw portion 1423 is formed at an opposite end of the male screw portion 1422 where the male screw portion 1422 is not formed.

Also, since the expansion tube tube tip 1430 can be detachably assembled to the end of the expansion tube 1420 constituting the expansion means 1400, the manufacture is facilitated.

The expansion cylinder tube tip 1430 includes a threaded portion 1431 formed at one end thereof and fastened to the female threaded portion 1423, and a tube tip 1430 having a wedge- A pickup tip guide hole 1433 formed through the shaft center of the threaded portion 1431 and the tube tip 1432 and a guide hole 1433 formed at the center of the tube tip to communicate with the pickup guide hole, A pickup guide tip receiving groove 1434 formed to accommodate the tip 1330 is formed.

Reference numeral 1424 denotes an assembly hole for assembling the expansion tube 1420 by turning.

8 and 18, after the automatic insertion apparatus 1000 moves to a position where the shaft member and the O-ring can be assembled in a state of holding the O-ring 2000, the fluid inlet / When the fluid is supplied to the first partition member 1203 in the state shown in FIG. 19, the expansion cylinder 1410 is brought into close contact with the second partition member 1250 having the through hole 1251 for guiding the expansion tube 1420 .

At this time, the expansion tube 1420 assembled to the expansion cylinder 1410 advances in the axial direction to grip the O-ring, and the expansion cylinder tube tip 1430 grasps the upper portion of the shaft member.

8, 14, and 15, the strip unit 1500 is installed in the strip chamber with the shaft center inserted in the expansion tube 1420, and the fluid supplied to both ends of the strip chamber A strip cylinder 1510 for moving the strip cylinder 1510 in the axial direction of the strip cylinder, a strip cylinder 1510 mounted on the strip cylinder 1510 so as to move in the axial direction of the strip cylinder, A tube 1520 and an O-ring inserted into the expansion cylinder tube tip 1430 by moving in the axial direction while being wrapped around the outer peripheral surface of the expansion cylinder tube tip 1430, And a strip tube tip 1530 adapted to be assembled to the member.

The strip cylinder 1510 is formed with a through hole 1511 for guiding the expansion tube 1420 about an axis at one side and a female screw 1512 for fastening the strip tube 1520 to the other side. .

The strip tube 1520 is formed with a through hole 1521 for guiding the expansion tube 1420 in the axial direction and a male screw portion 1522 fastened to the female screw portion 1512 is formed on the outer circumferential surface of one end portion And a male screw portion 1523 fastened to the strip tube tip 1530 is formed on the outer surface of the other end portion. An assembling hole 1524 is formed at a predetermined position on the outer circumferential surface of the shaft tube.

Further, the strip tube tip 1530 is formed with a female screw 1531 fastened to the male screw portion 1523 at one axial center and accommodates the expansion cylinder tube tip 1430 at the other axial center, An o-ring strip 1533 having a predetermined thickness formed with a tube-tip receiving groove 1532 to move along the axis, and an assembly hole 1534 passing through the axis at a predetermined position on the outer circumferential surface.

19, when fluid is supplied to the fluid inlet / outlet valve 1205 of the strip unit 1500 with the expansion cylinder tube tip 1430 gripping the O-ring 2000, the state of FIG. 20 is reached, The strip tube 1520 and the strip tube tip 1520 which have received the expansion tube 1420 and the expansion cylinder tube tip 1430 are brought into close contact with the second chamber forming member 1292, 1530 are advanced in the axial direction, the O-ring that has been in the expansion cylinder tube tip 1430 is pushed into the groove of the shaft member to assemble the O-ring.

When fluid flows into the fluid inlet / outlet valves 1201, 1204 and 1206 of the pick-up means 1300, the expansion means 1400 and the strip means 1500, the fluid flows into the cylinder block 1200, the expansion cylinder 1410, The strip cylinder 1510 moves in the axial direction and is reset to the state of FIG. 21, and returns to a position where it can grasp the O-ring supplied from the feeder, and is placed in the standby state.

As described above, since the pick-up guide tip 1330 and the expansion cylinder tube tip 1430 which are uniformly spread without using a chuck are used when gripping the O-ring, the O-ring is not damaged and the strip tube tip 1530) is assembled to the shaft member by pushing the O-ring from the expansion cylinder tube tip (1430). Therefore, there is little deficiency when inserting the O-ring, and it is possible to mechanize the insertion of the O-ring deeply at the end of the shaft member, .

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such modifications and changes will fall within the scope of the present invention if they are apparent to those skilled in the art.

1000: O-ring automatic assembling apparatus 1100: Frame
1150: Strip tube guide bushing 1200: Cylinder block
1300: pickup means 1310: pickup cylinder
1320: pick-up rods 1330: pick-up guide tips
1400: Expansion means 1410: Expansion cylinder
1420: Expansion tube 1430: Expansion cylinder tube tip
1500: strip means 1510: strip cylinder
1520: Strip tube 1530: Strip tube tip

Claims

A frame 1100 mounted on a stand of the machine;
A cylinder block 1200 assembled so as to be partitioned into a pickup chamber 1210 in which fluid is introduced and discharged while being guided and positioned inside the frame, and an expansion chamber 1220 and a strip chamber 1230;
A pick-up cylinder (1310) installed in the pick-up chamber and having one end fixed to the frame to move the cylinder block in the axial direction by a fluid supplied to both ends of the pick-up chamber; A pick-up bar 1320 fixed to be protruded from a frame in the direction opposite to the pick-up cylinder at the center of the first partitioning member is installed. Pick-up means 1300 for holding an O- and;
An expansion cylinder 1410 which is installed in the expansion chamber with the shaft center inserted in the pickup rod 1320 and is moved in the axial direction by a fluid supplied to both ends of the expansion chamber, The tip of the expansion tube 1420 installed so as to protrude from the frame opposite to the pick-up cylinder with the center of the shaft being inserted into the pickup rod in the opposite direction to the pickup cylinder is mounted on the outer peripheral surface of the pick- Expansion means 1400;
A strip cylinder 1510 installed in the strip chamber and axially moved by fluids supplied to both ends of the strip chamber with the shaft center inserted in the expansion tube 1420, In addition, a strip tube 1520 is provided so that the shaft center is inserted into the expansion tube in a direction opposite to the direction in which the pick-up cylinder is installed and protruded to the frame opposite to the pickup cylinder. The end portion of the strip tube is moved in the axial direction, And a strip means (1500) for pushing an O-ring (2000) sandwiched between the O-rings (1400) and assembled to the shaft member.

The method according to claim 1,
The pickup means (1300)
And a pickup guide tip (1330) detachably attached to an end of the pickup rod and having a small diameter at an end portion and a large diameter at a rear portion so as to be fitted into the inner circumferential surface of the O-ring.

3. The method of claim 2,
The expansion means 1400 includes:
And an expansion cylinder tube tip (1430) assembled at a front end of the expansion tube so as to move a predetermined length in an axial direction while surrounding an outer circumferential surface of the pickup guide tip.

The method of claim 3,
The strip means (1500)
Which is assembled to the end of the strip tube and moves in the axial direction while wrapping the outer circumferential surface of the expansion cylinder tube tip 1430 to push the O-ring fitted into the expansion cylinder tube tip 1430 to be assembled to the shaft member And a strip tube tip (1530).

The method according to claim 1,
The strip tube 1520 of the strip means 1500 is fitted in the axial center so as to guide the strip tube 1520 when the strip cylinder 1510 is moved by the fluid And a strip tube guide bush (1150) is further installed.