JP2005052960A - Installation method of ring part and installation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation method and an installation device of ring parts capable of installing the ring parts by one device and in one work process regardless of the number of grooves of a columnar member and without causing nonconformity such as overturning, etc. <P>SOLUTION: This installation device of the ring parts is furnished with a cylindrical jig 1 formed roughly in a circular-conical shape to cover an outer periphery of the columnar member 9 and a holding jig 15 inserted on the outer peripheral side of the cylindrical jig 1 and provided with the grooves to hold a seal ring 32 while constraining it in the axial direction and assembles the seal ring 32 on an outer periphery of the columnar member 9 by covering the outer periphery of the columnar member 9 by the cylindrical jig 1 and extracting the cylindrical jig 1 in a state of arranging the holding jig 15 setting the seal ring 32 in the groove on the outer peripheral side of this cylindrical jig 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a ring component mounting device for mounting a ring component such as an O-ring in a groove formed on the outer periphery of a mounted member, and a ring component mounting method using this device.

  When a ring component such as an O-ring is mounted in a groove provided on the outer peripheral surface of the columnar member, a tapered cone jig formed in a substantially truncated cone shape may be used. The taper cone jig is formed in a shape in which the diameter of the lower end portion is substantially the same as the diameter of the upper end portion of the cylindrical member, and gradually tapers as it goes upward. Then, an O-ring is inserted into the upper part of the taper cone jig, and in this state, after the taper cone jig is placed on the upper end of the cylindrical member, the O-ring is slid downward along the inclined surface of the taper cone jig, It is made to fit in the groove | channel of a cylindrical member.

In recent years, a ring component is automatically press-fitted using a press-fitting device (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 11-832

  However, when the conventional taper cone jig has a plurality of grooves formed in the cylindrical member, it is necessary to use different jigs corresponding to the respective groove positions. It was necessary to prepare a jig, which increased the cost and increased the number of man-hours for mounting ring parts.

  Further, in the press-fitting device, since the press-fitting operation is performed in a state where the O-ring is not regulated in the axial direction of the cylindrical member, there is a problem that the O-ring is turned up during the press-fitting. Furthermore, when a seal ring provided with a cut in a part in the circumferential direction as a ring component is mounted in the groove of the cylindrical member, there is a problem that the edge of the cut portion is displaced in the vertical direction.

  Therefore, the present invention provides a mounting method and mounting for a ring component that can be mounted in one device and in one operation regardless of the number of ring components to be mounted on the mounted member, and does not cause problems such as turning over. An object is to provide an apparatus.

  In the present invention, in the ring component mounting method for attaching the ring component to the groove formed on the outer periphery of the columnar mounted member, the ring component is restrained by restricting movement of the mounted member in the axial direction. It is characterized by being assembled in the groove portion of the mounted member while expanding in the radial direction.

  According to the ring component mounting method of the present invention, the ring component is assembled while being restrained in the axial direction of the member to be mounted. Work can be done. Further, even when a seal ring provided with a cut as a ring component is mounted on the mounted member, the edge of the cut does not shift up and down.

[First embodiment]
Hereinafter, a ring component mounting apparatus according to a first embodiment of the present invention will be described in detail with reference to the drawings. This mounting apparatus is composed of a cylindrical jig and a holding jig. In this embodiment, the cylindrical jig is first described, and then the holding jig is described.

  FIG. 1 is a perspective view showing a cylindrical jig 1 according to the present embodiment, and FIG. 2 is a cross-sectional view taken along line AA of the cylindrical jig 1 of FIG. The upper part of the cylindrical jig 1 is formed in a substantially truncated cone-shaped tapered part 3 having an inclined surface 2, and the lower part is formed in a cylindrical cylindrical part 5. In addition, a protrusion 7 that can be gripped by an elevating device or the like is provided at the upper end of the tapered portion 3. Further, as shown in FIG. 2, a cavity having a size capable of accommodating the columnar member 9 indicated by a two-dot chain line in the same figure is provided inside the cylindrical portion 5 of the cylindrical jig 1. A slight gap is formed between the inner peripheral surface 11 of the cylindrical portion 5 of the jig 1 and the outer peripheral surface 13 of the columnar member 9.

  FIG. 3 is a perspective view showing the holding jig 15 according to the present embodiment. The holding jig 15 includes an upper holding member 17, a lower holding member 19, and a connecting member 21, and the upper holding member 17 and the connecting member 21, and the lower holding member 19 and the connecting member 21 will be described later. It is configured to be slidable through the rod 23.

  The upper holding member 17 includes a pair of holding members 25 and 27 formed symmetrically. Each of the holding members 25 and 27 is formed with two grooves 29 and 30 at a substantially central portion in the height direction with a space in the vertical direction, and a seal ring 32 as a ring component is formed in the grooves 29 and 30. Inserted into. The seal ring 32 is formed so as to be elastically deformed and plastically deformed so that a part of the circumferential direction is cut off and expandable and contractable in the radial direction. These grooves 29 and 30 extend through the holding members 25 and 27 along the sliding direction indicated by the arrows in FIG. The width dimension W of the grooves 29 and 30 is set to be slightly larger than the diameter D of the seal ring 32, and the height dimension H is set to be slightly larger than the height h of the seal ring 32. When the ring 32 is inserted, the height position of the seal ring 32 is reliably regulated. The seal ring 32 is a seal ring provided with a cut (bias cut), and since it is molded from a synthetic resin or the like, the diameter of the seal ring 32 is increased by plastic deformation when expanded beyond a predetermined dimension. When pressed inward, the diameter is reduced and shaped.

  In addition, curved surfaces 31 and 33 having a substantially semicircular cross section are formed on the inner side in the sliding direction of the holding members 25 and 27. The curved surfaces 31 and 33 facing each other extend substantially vertically. A guide hole 35 is formed. A total of four insertion holes 36 through which the rod 23 is inserted are formed at both ends in the width direction with a space therebetween in the vertical direction. A pair of holding members 25, 27 and two connecting members 21, 21 are inserted into the rod 23, and the holding members 25, 27 and connecting members 21, 21 are slid in the sliding direction via the rod 23. It is slidably supported by. Further, a spring 37 is provided on the rod 23, and the spring 37 presses the pair of holding members 25 and 27 inward in the sliding direction. Further, notches 39, 39 are formed at both ends in the width direction of the holding members 25, 27, and prismatic connecting members 21, 21 are accommodated in these notches 39, 39.

  The lower holding member 19 has substantially the same structure as the upper holding member 17, and a groove 41 for inserting the seal ring 32 is formed at the center in the height direction, and provided at both ends in the width direction. A rod 43 is inserted through the insertion hole, and a spring 45 is provided on the rod 43.

  FIG. 4 is a cross-sectional view showing the columnar member 9 which is a member to which the seal ring 32 is attached. The columnar member 9 is surrounded by a wall portion 47 on the outer peripheral side, and a columnar portion 49 is erected at the inner central portion thereof. Three grooves 51, 53, 55 are formed on the outer periphery of the columnar part 49 at a predetermined interval in the vertical direction, and the seal ring 32 is fitted into the grooves 51, 53, 55.

  A procedure for assembling the seal ring 32 to the outer peripheral portion of the columnar member 9 using the cylindrical jig 1 and the holding jig 15 having the above-described configuration will be briefly described with reference to FIGS. 5 to 12, the connecting member 21, the rod 23, and the like are omitted in order to clarify the movement of the holding members 25 and 27.

  First, as shown in FIG. 5, when the cylindrical jig 1 is put on the columnar portion 49 of the columnar member 9 from above, all the three grooves 51, 53, and 55 of the columnar portion 49 are hidden in this state. Next, as shown in FIGS. 6 and 7, when the holding jig 15 with the three seal rings 32 mounted in advance is inserted from above the cylindrical jig 1, the lower holding member 19 of the holding jig 15 is columnar. Open in the radial direction of the member 9. Then, as shown in FIG. 8, when the holding jig 15 is further lowered, both the lower holding member 19 and the upper holding member 17 of the holding jig 15 are separated from the inclined surface 2 on the upper side of the cylindrical jig 1. It is pressed toward the outside in the radial direction and opens left and right. As shown in FIG. 9, the lowering limit of the holding jig 15 is a position where the seal ring 32 faces the grooves 51, 53, 55 of the columnar part 49. Since the seal ring 32 is elastically pushed outward in the radial direction by the outer peripheral surface of the cylindrical jig 1, the outer peripheral surface of the cylindrical jig 1 is always pressed to shrink inward. Then, as shown in FIG. 10, when the cylindrical jig 1 is raised, the seal ring 32 contracts radially inward in the lower holding member 19 from which the cylindrical jig 1 has been removed. The seal ring 32 is assembled in the 49 grooves 51, 53 and 55. Further, as shown in FIG. 11, when the cylindrical jig 1 is further raised, the upper holding member 17 slightly moves radially inward, and the seal ring 32 locked to the upper holding member 17 is contracted. , Assembled into the groove of the columnar portion 49. In this state, as shown in FIG. 12, when the upper holding member 17 and the lower holding member 19 of the holding jig 15 are moved radially outward, the inner peripheral surfaces of the upper holding member 17 and the lower holding member 19 are Since it is radially outward from the outer peripheral surface of the seal ring 32, it can be removed without being caught by the seal ring 32 by raising the holding jig 15 as it is.

  As shown in FIG. 13, the holding jig 15 is slightly raised and sealed with a shaping surface 57 provided at the lower part of the upper holding member 17 and a shaping surface 59 provided at the lower part of the lower holding member 19. If the outer peripheral surface of the ring 32 is pressed toward the inside in the radial direction, the seal ring 32 is reduced in diameter and shaped.

  As described above, the ring component mounting apparatus and mounting method according to the present embodiment have the following operational effects.

  The holding jig 15 is provided with grooves 29, 30, 41 for inserting the seal ring 32 corresponding to the positions of the grooves 51, 53, 55 formed in the columnar portion 49 of the columnar member 9. The seal ring 32 can be attached to the columnar member 9 with one holding jig 15 and is very inexpensive. Moreover, since the mounting work is only required once, work efficiency is greatly improved.

  Further, conventionally, there has been a problem that the edge of the seal ring 32 is shifted up and down during the mounting operation. However, according to the present embodiment, such a shift is eliminated. And even if the seal ring 32 is expanded and expanded in diameter, it is possible to reduce the diameter of the seal ring 32 inward by the shaping surface 57 of the holding jig 15, so there is no need to separately perform shaping work after mounting, Very efficient.

[Second Embodiment]
Next, the second embodiment will be described, but the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  FIG. 14 is a side view schematically showing the entire mounting apparatus according to the second embodiment of the present invention.

  The mounting device 61 according to the present embodiment moves the holding jig 63 toward the columnar member 67 and expands / contracts the holding jig 63 while pushing the seal ring into the groove of the holding jig 63 and inserting it. Driving means 69 is provided. The driving means 69 is configured to lower the holding jig 63 toward the columnar member 67 to which the cylindrical jig 1 is mounted, and to open the holding jig 63 in contact with the cylindrical jig 1. ing.

  As shown in FIGS. 14 and 15, the supply means 65 includes a stocker 73 that is pivotally supported on a support shaft 71 so as to be rotatable toward the drive means 69, and a seal ring that is discharged from the lower end of the stocker 73. And an extruding device 75 for extruding 32. The stocker 73 is a cylindrical body having a hollow interior, and is housed in a state where a plurality of separated seal rings 32 are stacked. Further, when the seal ring 32 is inserted into the stocker 73, the stocker 73 is configured to be tiltable so that the stocker 73 can be tilted to an inclined position shown by a two-dot chain line in FIG. A seal ring 32 is supplied. The extrusion device 75 is provided with a slide plate 77 that slides left and right to push out the seal ring 32 one by one.

  FIG. 16 is an enlarged side view showing the driving means according to the second embodiment.

  A ball screw 79 and an LM guide 85 are extended along the top and bottom of the driving means 69, and a support 83 is slidably attached to these. An NC servo motor 87 for controlling the height of the holding jig 63 is provided at the upper end of the ball screw 79, and an opening / closing device 81 for opening and closing the holding jig 63 is provided above the holding jig 63. Yes. The opening / closing device 81 includes an opening / closing cylinder 89 connected to the support 83 and fixed at a relative position with respect to the support 83, and a link body 91 attached to the tip of the opening / closing cylinder 89. The outer jig 93 is pivotally supported by the outer head 93 of the holding jig 63.

  Further, on the lower side, as shown in FIGS. 14 and 16, a cylindrical jig conveying device 95 that moves the cylindrical jig 1 up and down and left and right is provided. The cylindrical jig conveying device 95 includes a vertical rodless cylinder 97 that moves up and down, a forward retreating rodless cylinder 99 that moves left and right, and a gripping tool 101 that holds the cylindrical jig 1. The tool 101 can be moved in the vertical and horizontal directions while holding the upper end of the cylindrical jig 1.

  FIG. 17 is an enlarged side view showing a holding jig of the mounting apparatus according to the second embodiment, and FIG. 18 is a cross-sectional view taken along line AA of FIG.

  As shown in these drawings, the holding jig 63 includes an outer outer head 93 and an inner holding jig main body 103, and two slide shafts 105 penetrate the outer head 93 and the holding jig main body 103. It extends. A link body 91 is pivotally supported at the upper end of the outer head 93 so as to be rotatable. Further, the holding jig main body 103 is formed with two grooves 107 and 109 on the upper and lower sides, and the outer head 93 is formed with one groove 111. Further, the holding jig body 103 and the outer head 93 are provided with a proximity switch 113 which is an enrollment detection device for determining whether or not the seal ring 32 is accommodated.

  FIG. 19 is an enlarged schematic view showing the columnar member according to the second embodiment.

  A support surface 115 is extended on the outer periphery of the columnar member 67, and a positioning hole 115 a is formed in the support surface 115. Further, a height adjusting device 117 is disposed on the floor surface F, and a columnar member 67 is placed on the height adjusting device 117. By operating the height adjusting device 117, the height adjusting device 117 is operated. The columnar member 67 can be moved up and down. A positioning pin 119 is inserted into the positioning hole 115a, thereby fixing the left and right positions of the columnar member 67.

  A procedure for assembling the seal ring 32 to the outer periphery of the columnar member 67 using the mounting device 61 having the above-described configuration will be briefly described with reference to FIGS.

  First, the positioning pin 119 is inserted into the positioning hole 115 a of the columnar member 67 and placed on the height adjusting device 117. Then, when the operator presses an activation button (not shown), the cylindrical jig 1 is held by the cylindrical jig conveying device 95 as shown in FIG. 20, and in this state, the columnar portion 49 of the columnar member 67 is viewed from above. When the cylindrical jig 1 is covered, all three grooves of the columnar portion 49 are hidden. And the conveying apparatus 95 raises and retracts to the right side.

  Next, as shown in FIG. 21, the seal ring 32 is sequentially inserted from the supply means 65 into the groove of the holding jig 63. Specifically, when the seal rings 32 stacked and accommodated in the stocker 73 are discharged one by one from the lower end of the stocker 73, the slide plate 77 of the extrusion device 75 slides to the right in FIG. The seal ring 32 is inserted into the lowermost groove 111 (see FIG. 18) of the outer head 93. After that, the NC servo motor 87 shown in FIG. 16 is operated, and the support 83 and the opening / closing device 81 connected to the support 83 are lowered, and the slide plate is directed toward the second-stage groove 109 (see FIG. 18). 77 slides and descends again, and the seal ring 32 is inserted into the uppermost groove 107 (see FIG. 18).

  Then, when the NC servo motor 87 is operated and the opening / closing device 81 and the holding jig 63 are lowered to the vicinity of the columnar member 67 and the rod 121 of the opening / closing cylinder 89 protrudes downward as shown in FIG. 63 is pushed into the cylindrical jig 1, and the outer head 93 and the holding jig main body 103 are opened to the left and right together with the link body 91. At this time, since the seal ring 32 is elastically pushed outward in the radial direction by the outer peripheral surface of the cylindrical jig 1, the outer peripheral surface of the cylindrical jig 1 is always pressed to shrink inward. . Then, as shown in FIG. 23, when the conveying device 95 is operated to raise the cylindrical jig 1 and retract to the original position on the right side, the seal ring 32 contracts radially inward, so that the columnar portion 67 A seal ring 32 is assembled in the groove.

  24, the height adjusting device 117 is operated to slightly lower the height of the columnar member 67 (for example, about 1 to 2 mm), and is provided on the inner peripheral surface of the holding jig 63. If the outer peripheral surface of the seal ring 32 is pressed toward the inside in the radial direction by the shaping surface 57, the seal ring 32 is reduced in diameter and shaped.

  Further, as shown in FIGS. 16 and 25, the opening / closing device 81 and the support body 83 are moved upward, the holding jig 63 is raised while being opened, and the holding jig 63 is closed when returning to the original position at the upper end. It will be in a standby state. Further, the columnar member 67 is lifted upward by operating the height adjusting device 117, and finally, when the operator takes out the columnar member 67 for which the seal ring 32 has been assembled, a series of cycles is completed.

  As described above, the ring component mounting apparatus and mounting method according to the present embodiment have the following operational effects.

  First, a plurality of the seal rings 32 are provided, the plurality of seal rings 32 are moved toward the columnar member 67, and further, the seal ring 32 is expanded in the radial direction while being restrained in the axial direction of the columnar member 67. Since the seal members 32 are sequentially assembled to the columnar member 67, the plurality of seal rings 32 can be assembled to the columnar member 67 continuously and with a simple operation.

  Further, since the holding jig 63 and the cylindrical jig 1 are lowered toward the columnar member 67 and the driving means 69 for expanding and contracting the holding jig 63 is provided, the seal ring 32 is moved down by one stroke. The columnar member 67 can be automatically assembled.

  Further, the driving means 69 is configured to lower the holding jig 63 toward the columnar member 67 to which the cylindrical jig 1 is mounted, and push the holding jig 63 into the cylindrical jig 1 to open. Therefore, the seal ring 32 can be automatically mounted with a simple operation.

  Since the supply means 65 for inserting the seal ring 32 into the groove of the holding jig 63 is provided, from the supply of the seal ring 32 to the mounting of the seal ring 32 to the columnar member 67 and the shaping of the seal ring 32, Everything can be automated.

  And since the proximity switch 113 which is an enrollment detection device is provided in the holding jig 63, when the seal ring 32 is not accommodated in the holding device, the abnormality detection is activated, and the seal ring is not reliably attached. can do.

  Furthermore, since the seal ring 32 is pushed out by the supply means 65 and supplied to the holding jig 63 and interlocked with the vertical drive of the holding jig 63, the seal ring 32 can be continuously supplied to the holding jig 63. Yes, it can be used as an automatic assembly device.

  In addition, since the stocker 73 is configured to be retractable, the stocker 73 can be supplied into the stocker 73 with the seal ring 32 stacked.

  As described above, the ring component mounting method and mounting device according to the present invention have been described by taking the above embodiment as an example, but the present invention is not limited to this embodiment and does not depart from the gist of the present invention. Various embodiments can be adopted within a range.

  For example, in the first embodiment, the case where the seal ring 32 with a cut is mounted has been described, but an O-ring or the like without a cut may be used as the ring component.

It is a perspective view which shows the cylindrical jig | tool by the 1st Embodiment of this invention. It is sectional drawing of FIG. It is a perspective view which shows the holding jig by the 1st Embodiment of this invention. It is sectional drawing which shows the columnar member which is a to-be-mounted member used for the 1st Embodiment of this invention. It is sectional drawing which shows the state which covered the cylindrical jig | tool by the 1st Embodiment of this invention on the columnar member. It is sectional drawing which shows the state just before inserting a holding jig in the top part of the cylindrical jig | tool of FIG. It is sectional drawing which shows the state which inserted the holding jig in the top part of the cylindrical jig. It is sectional drawing which shows the state in the middle of inserting the holding jig in the cylindrical jig. It is sectional drawing which shows the state which insertion of the holding jig was completed. It is sectional drawing which shows the state in the middle of extracting the cylindrical jig | tool upward. It is sectional drawing which shows the state which extracted the cylindrical jig | tool completely. It is sectional drawing which shows the state which extended the holding jig to the radial direction outer side. It is sectional drawing which shows the state which diameter-reduced the seal ring with the holding jig and is shaping. It is a side view which shows roughly the whole mounting device of the ring components by the 2nd Embodiment of this invention. It is a side view which expands and shows the supply means of the ring components by 2nd Embodiment. It is a side view which expands and shows the drive means by 2nd Embodiment. It is a side view which expands and shows the holding jig of the mounting apparatus by 2nd Embodiment. It is sectional drawing by the AA line of FIG. It is sectional drawing which expands and shows the columnar member by 2nd Embodiment. It is sectional drawing which shows the state which covered the cylindrical jig on the columnar member by 2nd Embodiment. It is sectional drawing which shows the state which inserts a seal ring from a supply means in the groove | channel of a holding jig. It is sectional drawing which shows the state which has inserted the holding jig in the cylindrical jig. It is sectional drawing which shows the state which has removed the cylindrical jig | tool from the columnar member. It is sectional drawing which shows the state which diameter-reduced the seal ring with the holding jig and is shaping. It is sectional drawing which shows the state which moved the holding jig upward by the drive means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cylindrical jig 9, 67 ... Columnar member (member to be mounted)
15, 63 ... Holding jig 25, 27 ... Holding member 29, 30, 41 ... Groove 32 ... Seal ring (ring part)
57 ... Shaping surface 61 ... Mounting device 65 ... Supply means 69 ... Drive means

Claims (10)

  In the mounting method of the ring component for attaching the ring component to the outer peripheral portion of the mounted member formed in a columnar shape, the ring component is constrained in the axial direction of the mounted member and is expanded in the radial direction while being attached to the mounted member. A mounting method for ring parts, characterized by being assembled.   A plurality of the ring components are provided, the plurality of ring components are moved toward the mounted member, and further, the ring components are constrained in the axial direction of the mounted member and are expanded in the radial direction, and then sequentially on the mounted member. The ring component mounting method according to claim 1, wherein the ring component is assembled.   3. The ring part according to claim 1, wherein after the ring part is assembled to the outer peripheral portion of the mounted member, the diameter of the ring part expanded by the assembly is pressed inward in the radial direction to reduce the diameter. How to install ring parts.   A cylindrical jig formed in a substantially conical shape covering the outer periphery of the mounted member formed in a columnar shape, and inserted into the outer peripheral side of the cylindrical jig, while restraining the ring component in the axial direction A holding jig provided with a holding groove, covering the outer periphery of the mounted member with the cylindrical jig, and a holding jig in which a ring component is set in the groove on the outer peripheral side of the cylindrical jig. An apparatus for mounting a ring component, wherein the ring component is assembled to an outer periphery of a member to be mounted by pulling out the cylindrical jig in an arranged state.   The height and width dimensions of the groove are formed to be slightly larger than the height and diameter of the ring component, so that the ring component is held while being restrained in the axial direction. Item 5. The ring component mounting device according to Item 4.   The holding jig is composed of a pair of holding members divided on the left and right sides, and these holding members are slidably connected in a direction perpendicular to the axial direction so that the holding jig can be expanded and contracted. 6. The ring component mounting device according to claim 4, wherein the ring component mounting device is configured.   The ring component mounting device according to claim 6, wherein a shaping surface that presses an outer peripheral surface of the ring component radially inward is provided on an inner side of the holding member.   The ring component according to any one of claims 4 to 7, further comprising a driving unit that moves the holding jig and the cylindrical jig toward the mounted member and expands and contracts the holding jig. Mounting device.   The drive means is configured to lower the holding jig toward the mounted member on which the cylindrical jig is mounted, and to open the holding jig in contact with the cylindrical jig. The ring component mounting device according to claim 8.   

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