JP2018069444A - Piston packing installing jig - Google Patents

Piston packing installing jig Download PDF

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Publication number
JP2018069444A
JP2018069444A JP2017189246A JP2017189246A JP2018069444A JP 2018069444 A JP2018069444 A JP 2018069444A JP 2017189246 A JP2017189246 A JP 2017189246A JP 2017189246 A JP2017189246 A JP 2017189246A JP 2018069444 A JP2018069444 A JP 2018069444A
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JP
Japan
Prior art keywords
piston packing
jig
piston
pushing
packing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2017189246A
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Japanese (ja)
Inventor
彰 上田
Akira Ueda
彰 上田
純一 山下
Junichi Yamashita
純一 山下
謙一 ▲高▼橋
謙一 ▲高▼橋
Kenichi Takahashi
Original Assignee
日本バルカー工業株式会社
Nippon Valqua Ind Ltd
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Priority to JP2016206622 priority Critical
Priority to JP2016206622 priority
Application filed by 日本バルカー工業株式会社, Nippon Valqua Ind Ltd filed Critical 日本バルカー工業株式会社
Priority claimed from PCT/JP2017/037717 external-priority patent/WO2018074519A1/en
Publication of JP2018069444A publication Critical patent/JP2018069444A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/12Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same mounting or demounting piston rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs

Abstract

PROBLEM TO BE SOLVED: To provide a piston packing installing jig capable of easily installing a piston ring on a position by a simple device constitution.SOLUTION: In this piston packing installing jig, a piston packing 20 is fitted in a first outer diameter area 100A of a piston packing inserting jig 100 in a state of inserting a piston head 1 into a second outer diameter area 100B so that a lower end part of the second outer diameter area 100B of the piston packing inserting jig 100 becomes a vicinal position of an annular groove 1g, and a piston packing push-in jig 200 is also installed along an outer peripheral surface of the piston packing inserting jig 100, and the piston packing push-in jig 200 is moved along the axial direction, so that the piston packing 20 is push-advanced by a push-in side 220, and the piston packing 20 passes through the lower end part of the second outer diameter area 100B in a state of diametrically expanding in response to an outside diametrical dimension of the second outer diameter area 100B, so that the piston packing 20 can be installed in the annular groove 1g.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a piston packing mounting jig.

  In order to increase the work efficiency of the piston in the cylinder, a piston packing is mounted on an outer circumferential surface of the cylindrical piston that reciprocates in the cylinder in an annular groove provided in the outer peripheral surface of the piston. When mounting the piston packing in the groove, it is necessary to once expand the piston packing in the radial direction. For example, Japanese Patent Laid-Open No. 10-235527 (Patent Document 1) discloses a piston ring mounting device.

Japanese Patent Laid-Open No. 10-235527

  However, since the piston ring mounting device disclosed in Patent Document 1 has a large-scale device configuration, handling thereof may be required.

  An object of the present invention is to provide a piston packing mounting jig capable of easily mounting a piston ring to a piston with a simple device configuration.

  This piston packing mounting jig is a piston packing mounting jig used when mounting a piston packing in an annular groove provided on the outer peripheral surface of the piston head, and has the following configuration.

  A substantially cylindrical piston packing insertion jig mounted on the piston head along the axial direction of the piston head, and a piston packing insertion jig provided to be movable along the axial direction of the piston head. A piston packing pushing jig mounted along the outer peripheral surface of

  The piston packing insertion jig includes a first outer diameter region having an outer diameter equal to or less than an inner diameter of the piston packing, and a first outer diameter larger than the first outer diameter region, in which the piston head is inserted. 2 outer diameter regions. The piston packing pushing jig is arranged in a state of being divided into a plurality along the circumferential direction, and has an elastically deformable pushing side that extends along the axial direction.

  When the piston packing is mounted in the annular groove provided on the outer peripheral surface of the piston head, the lower end portion of the second outer diameter region of the piston packing insertion jig is positioned near the annular groove. In the state where the piston head is inserted into the second outer diameter region so as to become, the piston packing is fitted into the first outer diameter region of the piston packing insertion jig, and the piston packing push-in treatment is further performed. By mounting the tool along the outer peripheral surface of the piston packing insertion jig and moving the piston packing pushing jig along the axial direction, the piston packing is pushed forward by the pushing side, and the second The piston packing passes through the lower end of the second outer diameter region in a state where the diameter has been expanded according to the outer diameter size of the outer diameter region, so that the ring It said piston packing is to allow it to be mounted in the groove.

  In another embodiment, the piston packing insertion jig is arranged in a state of being divided into a plurality along the circumferential direction, each having a guide side extending along the axial direction, and inside the plurality of the guide sides. Is provided with a first outer dimension variable mechanism that varies the outer diameter dimension of the first outer diameter area and the second outer diameter area by moving each of the guide sides outward in the radial direction, Inside the plurality of pushing sides, there is provided a second outer dimension variable mechanism that makes the outer diameter of the piston packing pushing jig variable by moving each pushing side outward in the radial direction. ing.

  In another embodiment, in order to shrink the piston packing mounted in the annular groove of the piston head in the radial direction, the piston packing insertion jig and the piston packing pressing jig are removed from the piston head, and then A piston packing fastening device is further provided that winds around the piston head and contracts the piston packing in a radial direction in a state where the piston packing is mounted in the annular groove.

  According to this piston packing mounting jig, it is possible to easily mount the piston ring to the piston with a simple device configuration.

1 is an overall perspective view showing an external configuration of a piston packing mounting jig according to Embodiment 1. FIG. FIG. 3 is a first schematic diagram illustrating a mounting state of a piston packing using the piston packing mounting jig in the first embodiment. FIG. 6 is a second schematic diagram illustrating a mounting state of the piston packing using the piston packing mounting jig in the first embodiment. FIG. 3 is a longitudinal sectional view of a piston packing insertion jig according to the first embodiment. 3 is a plan view of a cam plate constituting the piston packing insertion jig in Embodiment 1. FIG. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. FIG. 3 is a plan view of a bottom plate constituting the piston packing insertion jig in the first embodiment. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7. FIG. 6 is a longitudinal sectional view of a state in which an outer diameter is enlarged using a first outer dimension variable mechanism of the piston packing insertion jig in the first embodiment. FIG. 3 is a longitudinal sectional view of the piston packing pushing jig in the first embodiment. FIG. 3 is a plan view of a cam plate that constitutes the piston packing pushing jig in the first embodiment. FIG. 3 is a plan view of a bottom plate that constitutes the piston packing pushing jig in the first embodiment. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. It is a longitudinal cross-sectional view of the state which expanded the outer diameter dimension using the 2nd external dimension variable mechanism of the piston packing pushing jig | tool in Embodiment 1. FIG. FIG. 5 is an overall perspective view showing an external configuration of a piston packing fastening device in a second embodiment. FIG. 10 is an overall perspective view showing an external configuration of a piston packing pushing jig in a third embodiment. FIG. 10 is a bottom view of a piston packing pushing jig in a third embodiment. FIG. 10 is a first overall exploded perspective view showing an external configuration of a piston packing pushing jig according to a third embodiment. FIG. 10 is a second overall exploded perspective view showing an external configuration of a piston packing pushing jig according to Embodiment 3. 6 is a longitudinal sectional view of a piston packing pushing jig in Embodiment 3. FIG. It is XXI-XXI sectional view taken on the line in FIG. FIG. 21 is a cross-sectional view taken along line XXII-XXII in FIG. 20. FIG. 10 is an overall perspective view showing an external configuration in a state where a diameter of a pushing side of a piston packing pushing jig in Embodiment 3 is most expanded.

  A piston packing mounting jig according to an embodiment of the present invention will be described below with reference to the drawings. Note that in the embodiments described below, when referring to the number, amount, and the like, the scope of the present invention is not necessarily limited to the number, amount, and the like unless otherwise specified. The same parts and corresponding parts are denoted by the same reference numerals, and redundant description may not be repeated.

(Embodiment 1: Piston packing mounting jig)
With reference to FIGS. 1 to 3, a piston packing mounting jig in the present embodiment will be described. FIG. 1 is an overall perspective view showing an external configuration of a piston packing mounting jig, and FIGS. 2 and 3 are first and second schematic views showing a mounting state of the piston packing using the piston packing mounting jig. is there.

  As shown in FIG. 1, the piston packing mounting jig in the present embodiment is for mounting a piston packing used when mounting an endless annular piston packing 20 in an annular groove 1 g provided on the outer peripheral surface of the piston head 1. It is a jig.

  The piston packing jig includes a piston packing insertion jig 100 and a piston packing pushing jig 200. The piston packing insertion jig 100 has a substantially cylindrical shape that is attached to the piston head 1 along the axial direction of the piston head 1. The piston packing insertion jig 100 has a first outer diameter region 100A having an outer diameter equal to or smaller than the inner diameter of the piston packing 20, and the piston head 1 inserted therein, and has an outer diameter larger than the first outer diameter region 100A. And a second outer diameter region 100B.

  In the present embodiment, the first outer diameter region 100A further includes a parallel region 100A1 in which the outer diameter does not change, and a tapered region 100A2 that smoothly connects the parallel region 100A1 and the second outer diameter region 100B. ing.

  Although details will be described later, the piston packing insertion jig 100 of the present embodiment is provided with a first outer dimension variable mechanism that can change the outer diameter of the first outer diameter area 100A and the second outer diameter area 100B. ing. The piston packing insertion jig 100 is arranged in a state of being divided into a plurality of portions along the circumferential direction in order to make the outer diameter dimension variable, and has guide sides 130 that respectively extend along the axial direction. In the present embodiment, it is divided into six on the circumference and has six guide sides 130. In the state shown in FIG. 1, the outer diameter dimension of the piston packing insertion jig 100 is set to the smallest dimension position.

  The piston packing pushing jig 200 is arranged in a state of being divided into a plurality along the circumferential direction, and has an elastically deformable pushing side 220 that extends along the axial direction. In the present embodiment, it is divided into 12 on the circumference and has 12 pushing edges 220. The pushing side 220 is made of, for example, a resin molded product.

  Although details will be described later, the piston packing pushing jig 200 of the present embodiment is also provided with a second outer dimension variable mechanism that makes the outer diameter dimension of the piston packing pushing jig 200 variable. The upper end of each pushing side 220 is fixed to the cam plate 210. In the state shown in FIG. 1, the outer diameter dimension of the piston packing pushing jig 200 is set to the smallest dimension position.

(Installation procedure of piston packing 20)
Next, referring to FIG. 2 and FIG. 3, the piston packing insertion jig 100 and the piston packing pushing jig 200 having the above configuration are used to insert the piston into the annular groove 1 g provided on the outer peripheral surface of the piston head 1. A procedure for mounting the packing 20 will be described.

  As shown in FIG. 2, the piston head 1 is inserted into the second outer diameter region 100B so that the lower end portion of the second outer diameter region 100B of the piston packing insertion jig 100 is positioned near the annular groove 1g. . Next, the piston packing 20 is fitted into the first outer diameter region 100 </ b> A of the piston packing insertion jig 100. Next, the piston packing pushing jig 200 is mounted along the outer peripheral surface of the piston packing inserting jig 100.

  As shown in FIG. 3, by moving the piston packing pushing jig 200 along the axial direction (the direction of arrow P in the figure), each pushing edge 220 expands along the outer surface of the piston packing inserting jig 100. (In the direction of arrow L1 in the figure) The piston packing 20 is pushed forward. Thereby, the piston packing 20 is expanded in accordance with the outer diameter of the second outer diameter region 100B of the piston packing insertion jig 100. Further, the piston packing 20 is pushed by the piston packing pushing jig 200 (in the direction of arrow P1 in the figure), so that the piston packing 20 passes through the lower end portion of the second outer diameter region 100B and is provided on the outer peripheral surface of the piston head 1. The piston packing 20 is mounted (inserted) into the annular groove 1g.

  In this way, the piston packing 20 is easily attached to the annular groove 1g provided on the outer peripheral surface of the piston head 1 only by pushing the piston packing pushing jig 200 along the outer surface of the piston packing insertion jig 100. be able to.

(First external dimension variable mechanism / second external dimension variable mechanism)
When there is only one type of piston head 1, it is not necessary to provide the first outer dimension variable mechanism and the second outer dimension variable mechanism in each of the piston packing insertion jig 100 and the piston packing pushing jig 200. However, the piston head 1 has various sizes, and there are piston packings 20 of various sizes that match the size.

  Although a piston packing mounting jig may be created for each size, in the present embodiment, the first outer dimension variable mechanism is provided for each of the piston packing insertion jig 100 and the piston packing pushing jig 200. By providing the second outer dimension variable mechanism, the piston head 1 and the piston packing 20 of various sizes can be handled with a single piston packing mounting jig.

(First external dimension variable mechanism employed in the piston packing insertion jig 100)
With reference to FIGS. 4 to 9, the first outer dimension variable mechanism employed in the piston packing insertion jig 100 will be described. 4 is a longitudinal sectional view of a piston packing insertion jig, FIG. 5 is a plan view of a cam plate constituting the piston packing insertion jig, and FIG. 6 is a sectional view taken along line VI-VI in FIG. 7 is a plan view of the bottom plate constituting the piston packing insertion jig, FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 is a first drawing of the piston packing insertion jig. It is a longitudinal cross-sectional view of the state which expanded the outer diameter using the external dimension variable mechanism.

  Referring to FIG. 4, a slide plate 160 is provided inside each guide side 130. The slide plate 160 may be formed integrally with the guide side 130 or may be a separate structure from the guide side 130 and may be integrated with a bolt or the like. The upper end portion of the slide plate 160 has an elongated shape extending in the radial direction, and is provided to be slidable along a radial direction in a guide groove 152 (see FIG. 7) provided in the bottom plate 150 described later. A cam plate 140 is located on the upper side of the slide plate 160, and a cylindrical handle knob 110 is fixed to the center position of the cam plate 140 using a bolt B1. A bottom plate 150 is positioned below the cam plate 140.

  5 and 6, a bolt hole 142 is provided at the center of the cam plate 140, and there are three bolt holes 144 for fixing the handle knob 110 concentrically around the bolt hole 142. Is provided. Further, around the bolt hole 144, a plurality of cam holes 143 extending radially on a concentric circle are provided. In the present embodiment, cam holes 143 are provided at a total of six locations at a pitch of 60 degrees. The cam holes 143 are provided in a staircase shape, and stop areas 143p in which positioning pins P1 described later can be temporarily stopped are provided at a total of five locations. Therefore, the diameter expansion dimension can be adjusted in five stages.

  7 and 8, the bottom plate 150 includes a columnar core member 154 and a disk-shaped guide plate 151 that expands outward from the upper end of the core member 154 in the radial direction. A female screw hole 153 is provided at the center position of the guide plate 151. The guide plate 151 is provided with a total of six guide grooves 152 extending in the radial direction at a pitch of 60 degrees. Further, a longitudinal groove 155 communicating with the guide groove 152 is provided on the side wall of the core member 154 where the guide groove 152 is located.

  Referring to FIG. 4 again, the handle knob 110, the cam plate 140, and the bottom plate 150 are fixed so as to be integrated using a bolt 120 or the like. The slide plate 160 is slidably fitted along the guide groove 152 of the guide plate 151 along the radial direction, and a positioning pin P1 provided on the slide plate 160 is inserted into the cam hole 143. A coil spring CS is mounted between the vertical groove 155 and the spring hole 160a provided in the slide plate 160 to urge the slide plate 160 outward with respect to the vertical groove 155.

  With the above configuration, when the handle knob 110 is rotated clockwise (in the direction of arrow C in the figure), the positioning pin P1 moves outward in the radial direction along the rotation of the cam hole 143. As a result, as shown in FIG. 9, the slide plate 160 and the guide side 130 are also moved outward in the radial direction, so that the outer diameter of the piston packing insertion jig 100 can be increased. On the other hand, when the handle knob 110 is rotated counterclockwise, the outer diameter of the piston packing insertion jig 100 can be reduced.

(Second external dimension variable mechanism employed in the piston packing pushing jig 200)
With reference to FIGS. 10 to 14, the second outer dimension variable mechanism structure employed in the piston packing pushing jig 200 will be described. 10 is a longitudinal sectional view of the piston packing pushing jig 200, FIG. 11 is a plan view of a cam plate 210 constituting the piston packing pushing jig, and FIG. 12 is a bottom plate 240 constituting the piston packing pushing jig. FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12, and FIG. 14 is a longitudinal cross-sectional view of the piston packing push-in jig 200 using the second outer dimension variable mechanism to enlarge the outer diameter. FIG.

  Referring to FIG. 10, a slide plate 230 is provided inside each pushing side 220. The slide plate 230 may be formed integrally with the pushing side 220, or may be formed as a separate structure from the pushing side 220 and may be formed as an integral structure using a bolt or the like. The upper end portion of the slide plate 230 has an elongated shape extending in the radial direction, and is slidable along a radial direction in a guide groove 242 (see FIG. 12) provided in the bottom plate 240 described later. A cam plate 210 is positioned above the slide plate 230. A bottom plate 240 is located below the cam plate 210.

  Referring to FIG. 11, cam plate 210 is provided with six concentric circular arc-shaped bolt holes 213 through which bolt B <b> 1 used for fixing bottom plate 240 passes. Further, around the bolt hole 213, a plurality of cam holes 212 extending radially on a concentric circle are provided. In the present embodiment, cam holes 212 are provided at a total of 12 locations at a pitch of 30 degrees. The cam holes 212 are provided in a stepped manner, and stop regions 212p in which positioning pins P1 described later can be temporarily stopped are provided at a total of five locations. Therefore, the diameter expansion dimension can be adjusted in five stages.

  Referring to FIGS. 12 and 13, the bottom plate 240 has a disc-shaped guide plate 241. The guide plate 241 is provided with guide grooves 242 extending in the radial direction at a pitch of 30 degrees in a total of 12 locations. ing. Between the guide grooves 242, bolt holes 243 for fixing the cam plate 210 to the bottom plate 240 using bolts B <b> 1 are provided at a total of six locations at a pitch of 60 degrees.

  Referring to FIG. 10 again, cam plate 210 and bottom plate 240 are fixed so as to be integrated with bolt B1. The slide plate 230 is fitted so as to be slidable along the guide groove 242 of the bottom plate 240 along the radial direction, and a positioning pin P <b> 1 provided on the slide plate 230 is inserted into the cam hole 212. A coil spring CS that biases the slide plate 230 outward is mounted between the bottom plate 240 and the spring hole 230a provided in the slide plate 230.

  With the above configuration, when the cam plate 210 is rotated clockwise (in the direction of arrow C in the figure), the positioning pin P1 moves outward in the radial direction along with the rotation of the cam hole 212. Accordingly, as shown in FIG. 14, the slide plate 230 and the pushing side 220 are also moved outward in the radial direction, so that the outer diameter of the piston packing pushing jig 200 can be increased. On the other hand, when the cam plate 210 is rotated counterclockwise, the outer diameter of the piston packing pushing jig 200 can be reduced.

(Embodiment 2: Piston packing fastening device 300)
Next, the configuration of the piston packing fastening device 300 will be described with reference to FIG. FIG. 15 is an overall perspective view showing an external configuration of the piston packing fastening device 300.

  When the piston packing 20 is mounted in the annular groove 1g provided on the outer peripheral surface of the piston head 1 by using the piston packing mounting jig shown in the first embodiment, the piston packing 20 is once outside in the radial direction. It is in a state stretched toward the direction. Therefore, it is preferable to perform an operation of reducing the inner diameter of the piston packing 20 by using the piston packing fastening device 300 of the present embodiment.

  The piston packing fastening device 300 includes a dimension correcting jig 310 wound around the body of the piston head 1, a fastening belt 320 for fastening the dimension correcting jig 310 to the body of the piston head 1, and a fastening tool 330 for fastening the fastening belt 320. Including. For the dimension correcting jig 310, it is possible to adopt a structure in which a band-shaped member is wound, a structure in which a half-shaped member is abutted, or the like. The fastening belt 320 is engaged with an engagement hole (rack) provided in the fastening belt 320 and a claw portion (pinion) provided in the fastener 330 is engaged, and the fastening belt 320 is tightened by rotating the claw portion. A structure can be adopted.

(Embodiment 3: Piston packing pushing jig 400)
With reference to FIG. 16 to FIG. 23, the configuration of the piston packing fastening device 400 in the present embodiment will be described. 16 is an overall perspective view showing the external configuration of the piston packing pushing jig 400, FIG. 17 is a bottom view of the piston packing pushing jig 400, and FIG. 18 is a first drawing showing the external configuration of the piston packing pushing jig 400. FIG. 19 is a second overall exploded perspective view showing the external configuration of the piston packing pushing jig 400, FIG. 20 is a longitudinal sectional view of the piston packing pushing jig 400, and FIG. FIG. 22 is a cross-sectional view taken along the line XXI-XXI, FIG. 22 is a cross-sectional view taken along the line XXII-XXII in FIG. 20, and FIG. FIG.

  Similar to the piston packing mounting jig described in the first embodiment, the piston packing fastening device 400 is used together with the piston packing inserting jig 100. The procedure for attaching the piston packing 20 to the annular groove 1g provided on the outer peripheral surface of the piston head 1 using the piston packing insertion jig 100 and the piston packing pushing jig 400 is shown in FIGS. The procedure is the same, and redundant description will not be repeated.

  The piston packing pushing jig 400 is arranged in a state of being divided into a plurality along the circumferential direction, and has an elastically deformable pushing side 420 that extends along the axial direction. In the present embodiment, it is divided into six on the circumference and has six pushing edges 420. The pushing side 420 is made of, for example, a resin molded product.

  The piston packing pushing jig 400 according to the present embodiment is also provided with a second external dimension variable mechanism that makes the outer diameter dimension of the piston packing pushing jig 400 variable, similarly to the piston packing pushing jig 200 described above. ing. The upper end of each pushing side 420 is movable to the base plate 410. In the state shown in FIG. 16, the outer diameter dimension of the piston packing pushing jig 400 is set to the smallest dimension position.

  With reference to FIGS. 16 to 19, the six pushing sides 420 are held to be movable with respect to the base plate 410. A second external dimension variable mechanism that allows the diameter of the circle defined by the pushing side 420 to be enlarged or reduced by rotating the handle 460 provided at the center of the base plate 410 is employed. Yes. The base plate 410 is provided with a pair of handshake portions 410a extending in the radial direction with the handle 460 interposed therebetween. The handle 460 includes a grip portion 460a and a rotation shaft 460b that is fixed to a rotating plate 470 described later.

  Referring to FIG. 17, six arc-shaped guide grooves 410 h are provided on a concentric circle on the back surface side of base plate 410. Each guide groove 410h has an arc shape that gradually moves away from the rotation center PC of the base plate 410 from one end side to the other end side. As a result, the pushing side 420 can be selected between a small diameter position and a large diameter position.

  Referring to FIGS. 18 and 19, push side 420 has a thin region 420 a in the middle region and an upper thick region 420 e that is thicker than thin region 420 a on the upper end side. Similarly, the lower thick region 420c is thicker than the thin region 420a on the lower end side. The upper thick region 420e is provided with a fixing hole 420h for fixing a slide pin 430 described later. The lower thick region 420c has a tapered shape that increases in thickness toward the lower end. A groove 420d extending in the circumferential direction is provided on the outer peripheral surface of the lower thick region 420c.

  A turntable 470 is provided on the back side of the base plate 410. The turntable 470 is provided to be rotatable about the rotation center PC with respect to the base plate 410 as the handle 460 rotates. On the side surface of the rotating disk 470, six guide holes 470p extending in the radial direction are provided in the circumferential direction.

  A guide pin 420b protruding upward is provided at the upper end of the pushing side 420, and a sliding ring 490 is fitted into the guide pin 420b. A guide pin 420 b in which the sliding ring 490 is fitted is accommodated in an arc-shaped guide groove 410 h provided on the back side of the base plate 410.

  One end of a sliding pin 430 extending in the radial direction is fixed to a fixing hole 420h provided in the upper thick region 420e of the pushing side 420 using a fixing pin 480 (see FIG. 20). The other end side of the sliding pin 430 is slidably accommodated in the guide hole 470p provided on the side surface of the rotating disk 470 described above. As shown in FIG. 19, a plurality of ring grooves 470g are provided on the outer surface of the sliding pin 430 at a position opposed to 180 degrees.

  Referring to FIG. 20, on the outer surface of sliding pin 430 provided with ring groove 470g, positioning pin 495 that abuts in the direction intersecting the axial direction of sliding pin 430 in guide hole 470p. Is provided. The positioning pin 495 is always urged toward the sliding pin 430 by an elastic member (not shown) in the axial direction of the positioning pin 495.

  In the piston packing pushing jig 400 having the above-described configuration, the rotating disk 470 is rotated by rotating the handle 460. With the rotation of the turntable 470, the pushing side 420 also rotates. The pushing side 420 moves along a guide groove 410 h provided at the upper end of the pushing side 420 on the back surface side of the base plate 410. At the same time, the sliding pin 430 moves along the guide hole 470p. As a result, the pushing side 420 moves inward or outward in the radial direction according to the rotation direction of the handle 460. At this time, in the sliding pin 430 with which the positioning pin 495 contacts, the positioning pin 495 fits into the ring groove 470g, so that the positioning state of the pushing side 420 can be fixed stepwise.

  FIG. 16 shows the state where the pushing side 420 is the smallest diameter state, and FIG. 23 shows the state where the pushing side 420 is the largest diameter state when the handle 460 is rotated. Thus, according to piston packing pushing jig 400 in the present embodiment, the position of pushing side 420 can be easily changed only by rotating handle 460.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 piston head, 1 g annular groove, 20 piston packing, 100 piston packing insertion jig, 100A1 parallel region, 100A2 taper region, 100A first outer diameter region, 100B second outer diameter region, 110 handle knob, 130 guide side, 140, 210 Cam plate, 142, 144, 213, 243 Bolt hole, 143, 212 Cam hole, 143p, 212p Stop region, 150, 240 Bottom plate, 151, 241 Guide plate, 152, 242 Guide groove, 153 Female screw hole 154 Core member, 155 Vertical groove, 160, 230 Slide plate, 160a, 230a Spring hole, 200, 400 Piston packing pushing jig, 220, 420 pushing edge, 300 Piston packing fastening device, 310 Dimension correction jig, 320 Fastening belt, 330 Fastener, 410 Base plate, 410a Handshake part, 410h Guide groove, 420a Thin wall area, 420b Guide pin, 420c Lower thick wall area, 420d Groove, 420h Fixing hole, 420e Upper thick wall area, 430 Sliding Pin, 460 handle, 460a gripping part, 460b rotating shaft, 470 rotating disk, 470g ring groove, 470p guide hole, 480 fixed pin, 490 sliding ring, 495 positioning pin, B1 bolt, CS coil spring, P1 positioning pin.

One end of a sliding pin 430 extending in the radial direction is fixed to a fixing hole 420h provided in the upper thick region 420e of the pushing side 420 using a fixing pin 480 (see FIG. 20). The other end side of the sliding pin 430 is slidably accommodated in the guide hole 470p provided on the side surface of the rotating disk 470 described above. As shown in FIG. 19, a plurality of ring grooves 430g are provided on the outer surface of the sliding pin 430 at a position opposed to 180 degrees.

Referring to FIG. 20, the outer surface of the sliding pin 430 to the ring groove 430g is provided, in the guide hole 470p, the positioning pin 495 abuts in the direction intersecting with the axial direction of the slide pin 430 Is provided. The positioning pin 495 is always urged toward the sliding pin 430 by an elastic member (not shown) in the axial direction of the positioning pin 495.

In the piston packing pushing jig 400 having the above-described configuration, the rotating disk 470 is rotated by rotating the handle 460. With the rotation of the turntable 470, the pushing side 420 also rotates. The pushing side 420 moves along a guide groove 410 h provided at the upper end of the pushing side 420 on the back surface side of the base plate 410. At the same time, the sliding pin 430 moves along the guide hole 470p. As a result, the pushing side 420 moves inward or outward in the radial direction according to the rotation direction of the handle 460. At this time, in the sliding pin 430 with which the positioning pin 495 abuts, the positioning pin 495 is fitted into the ring groove 430g , so that the positioning state of the pushing side 420 can be fixed stepwise.

1 piston head, 1 g annular groove, 20 piston packing, 100 piston packing insertion jig, 100A1 parallel region, 100A2 taper region, 100A first outer diameter region, 100B second outer diameter region, 110 handle knob, 130 guide side, 140, 210 Cam plate, 142, 144, 213, 243 Bolt hole, 143, 212 Cam hole, 143p, 212p Stop region, 150, 240 Bottom plate, 151, 241 Guide plate, 152, 242 Guide groove, 153 Female screw hole 154 Core member, 155 Vertical groove, 160, 230 Slide plate, 160a, 230a Spring hole, 200, 400 Piston packing pushing jig, 220, 420 pushing edge, 300 Piston packing fastening device, 310 Dimension correction jig, 320 fastening Belt, 33 Fasteners, 410 base plate, 410a handshake section, 410h guide groove, 420a thin regions, 420b guide pins, 420c lower thick-walled region, 420d groove, 420h fixing hole, 420e upper thick-walled region, 430 slide pin, 430 g ring Groove, 460 handle, 460a gripping part, 460b rotating shaft, 470 rotating disk, 470p guide hole, 480 fixing pin, 490 sliding ring, 495 positioning pin, B1 bolt, CS coil spring, P1 positioning pin.

Claims (3)

  1. A piston packing mounting jig used when mounting a piston packing in an annular groove provided on the outer peripheral surface of the piston head,
    A substantially cylindrical piston packing insertion jig mounted on the piston head along the axial direction of the piston head;
    A piston packing pushing jig provided movably along the axial direction of the piston head and mounted along the outer peripheral surface of the piston packing inserting jig,
    The piston packing insertion jig is
    A first outer diameter region having an outer diameter equal to or smaller than the inner diameter of the piston packing;
    A second outer diameter region having the piston head inserted therein and having an outer diameter larger than the first outer diameter region;
    The piston packing pushing jig is
    It is arranged in a state of being divided into a plurality along the circumferential direction, and each has an elastically deformable pushing side extending along the axial direction,
    When mounting the piston packing in the annular groove provided on the outer peripheral surface of the piston head,
    The piston packing is inserted in a state where the piston head is inserted into the second outer diameter region so that the lower end portion of the second outer diameter region of the jig for inserting the piston packing is located in the vicinity of the annular groove. The piston packing is fitted into the first outer diameter region of the jig for jig, and the piston packing pushing jig is mounted along the outer peripheral surface of the piston packing inserting jig, and the piston packing pushing jig is attached to the piston packing pushing jig. By moving along the axial direction, the piston packing is pushed forward by the pushing side, and the piston packing is expanded in accordance with the outer diameter of the second outer diameter region, and the piston packing is moved to the second outer diameter region. A piston packing mounting jig that allows the piston packing to be mounted in the annular groove by passing through the lower end of the piston packing.
  2. The piston packing insertion jig is arranged in a state of being divided into a plurality along the circumferential direction, each having a guide side extending along the axial direction,
    In the plurality of guide sides, the guide sides are moved outward in the radial direction to change the outer diameter of the first outer diameter region and the second outer diameter region. An external dimension variable mechanism is provided,
    Inside the plurality of pushing sides, there is provided a second external dimension variable mechanism that makes the outer diameter size of the piston packing pushing jig variable by moving each of the pushing sides outward in the radial direction. The piston packing mounting jig according to claim 1.
  3.   In order to shrink the piston packing mounted in the annular groove of the piston head in the radial direction, the piston packing is removed from the piston head after the piston packing insertion jig and the piston packing pressing jig are removed from the piston head. 3. The piston packing mounting jig according to claim 1, further comprising a piston packing fastening device that winds around the piston head and contracts the piston packing in a radial direction while being mounted in the groove.
JP2017189246A 2016-10-21 2017-09-29 Piston packing installing jig Pending JP2018069444A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016206622 2016-10-21
JP2016206622 2016-10-21

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020197011315A KR20190053246A (en) 2016-10-21 2017-10-18 Jig for Mounting Piston Packings
CN201780064592.5A CN109843511A (en) 2016-10-21 2017-10-18 Piston washer tool for assembling
PCT/JP2017/037717 WO2018074519A1 (en) 2016-10-21 2017-10-18 Piston packing fitting jig
TW106136067A TW201819094A (en) 2016-10-21 2017-10-20 Piston packing fitting jig

Publications (1)

Publication Number Publication Date
JP2018069444A true JP2018069444A (en) 2018-05-10

Family

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JP2017189246A Pending JP2018069444A (en) 2016-10-21 2017-09-29 Piston packing installing jig

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JP (1) JP2018069444A (en)
KR (1) KR20190053246A (en)
CN (1) CN109843511A (en)
TW (1) TW201819094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109759986A (en) * 2019-02-19 2019-05-17 武汉工程大学 A kind of assembly device of gas control valve core Glais ring

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2039613U (en) * 1988-10-12 1989-06-21 开封空分设备厂 Shrunk-on tool of ensemble guide ring
JPH10235527A (en) 1997-02-24 1998-09-08 Hirata Corp Piston ring mounting device
JP2001162553A (en) * 1999-12-03 2001-06-19 Nok Corp Mounting jig
US6427301B1 (en) * 2000-12-07 2002-08-06 John R. Foster Piston ring compressor tool system
JP4313960B2 (en) * 2001-04-27 2009-08-12 トヨタ自動車株式会社 Piston ring assembly machine
CN2863370Y (en) * 2005-12-23 2007-01-31 上海外高桥造船有限公司 Sealing element mounting tools
CN202137727U (en) * 2011-06-23 2012-02-08 宁波宝新不锈钢有限公司 Installation device for sealing piston of hydraulic cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109759986A (en) * 2019-02-19 2019-05-17 武汉工程大学 A kind of assembly device of gas control valve core Glais ring

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TW201819094A (en) 2018-06-01
KR20190053246A (en) 2019-05-17
CN109843511A (en) 2019-06-04

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