JP5836245B2 - Fitting insertion jig - Google Patents

Description

  The present invention relates to a joint insertion jig, and more specifically to a joint insertion jig for inserting a joint into an end portion of a tube.

  Conventionally, there has been proposed a joint insertion jig capable of easily inserting a joint into an end portion of a tube (see, for example, Patent Document 1).

  The technique described in Patent Document 1 includes a tube holding portion that holds a tube, a joint holding portion that is provided at a position facing the tube holding portion, is supported so as to be movable along the axis of the joint, and holds the joint. And a moving mechanism for moving the holding portion.

  The moving mechanism includes a rack provided in the joint holding portion, a pinion that meshes with the rack, and a swinging lever that rotates the pinion. Accordingly, since the joint holding portion can be moved only by operating the swing lever, the joint can be easily inserted into the end portion of the tube.

JP 2010-139054 A

  However, in the technique described in Patent Document 1, it is necessary to provide a moving mechanism including a rack, a pinion, and a swinging lever in order to move the joint holding portion, and there is a disadvantage that the apparatus becomes complicated and large.

  Accordingly, an object of the present invention is to provide a joint insertion jig that solves the above-described problems and that allows a joint to be easily inserted into an end portion of a tube while having a simple and compact configuration. .

In order to solve the above-described problem, in claim 1, a tube holding portion that holds a tube, and the tube holding portion are arranged opposite to each other, and are coaxially or substantially coaxially with an axis of the tube. A joint holding portion for holding the joint so that the axis of the joint is located, and at least one of the tube holding portion and the joint holding portion is moved in the axial direction of the tube and the one end of the tube In a joint insertion jig configured to insert a joint, an air supply unit capable of supplying air into the tube, and provided between the tube holding unit and the joint holding unit, the tube holding unit and the tube When moving at least one of the joint holding portions in the axial direction of the tube, a switch for detecting a moving position of the tube holding portion or the joint holding portion. When protrudes to the switch side is provided in the tube holder or the joint holder, further includes a convex guide contacting the switch with the least movement of one of said tube holding portion and the joint holding part The air supply unit is configured to supply air into the tube when it is detected that the moving position has reached a predetermined position .

  In the joint insertion jig according to claim 2, the air supply unit is configured to supply the air into the tube from the other end with respect to the one end.

In the joint insertion jig according to claim 3, the air supply unit includes an air supply source, an air discharge port, an air supply path connecting the air supply source and the air discharge port, and the air A switching valve that is inserted in a supply path and switches between communication / blocking of the air supply source and the air discharge port, the switch is provided in the switching valve, and the switching valve is in response to ON / OFF of the switch. And can be switched .

In the joint insertion jig according to claim 1, the joint is disposed so as to face the tube holding portion and the tube holding portion so that the joint axial center is located coaxially or substantially coaxially with the tube axial center. In a joint insertion jig in which at least one of the joint holding portions for holding the tube is moved in the axial direction of the tube and the joint is inserted into one end of the tube, an air supply portion capable of supplying air into the tube ; A switch that is provided between the tube holding portion and the joint holding portion and detects the moving position of the tube holding portion or the joint holding portion when moving at least one of the tube holding portion and the joint holding portion in the axial direction of the tube; Projecting to the switch side and provided at the tube holding part or the joint holding part. And a convex guide in contact with the pitch, the air supply unit, when the movement position reaches a predetermined position is detected, since it is configured as that to supply air to the interior of the tube, a compact and simple In addition to the configuration, the diameter of the tube is increased by supplying air, so that the joint can be easily inserted into the end portion (one end) of the tube. In addition, it is possible to perform work with high accuracy regardless of the characteristics of the worker (age, presence / absence of disability). It is also possible to optimize the air supply timing.

  In the joint insertion jig according to claim 2, since the air supply unit is configured to supply air into the tube from the other end of the tube, in addition to the effects described above, a joint is attached to the end of the tube. It can be inserted more easily.

It is a perspective view of the joint insertion jig which concerns on the Example of this invention. It is explanatory drawing for demonstrating the tube and joint used with the joint insertion jig | tool shown in FIG. FIG. 2 is an explanatory diagram for explaining a state in which a tube is inserted into a joint in the joint insertion jig shown in FIG. 1. It is explanatory drawing for demonstrating a mode that the movement position of a tube holding part is detected.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for implementing a joint insertion jig according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a joint insertion jig according to an embodiment of the present invention, and FIG. 2 is an explanatory view for explaining a tube and a joint used in the joint insertion jig.

  In FIG. 1, reference numeral 10 denotes a joint insertion jig. The joint insertion jig 10 includes a base 12, a tube holding part 14 that is supported by the base 12 and holds the tube t, and a joint holding part 16 that is also supported by the base 12 and holds the joint c.

  As shown in FIG. 2, the tube t used in the joint insertion jig 10 has a substantially crank shape in a sectional view and has a disk portion t1 at an intermediate position. Further, the joint c is bent in an L shape, and one end thereof is inserted into one end of the tube t by the joint insertion jig 10.

  Returning to the description of FIG. 1, the base 12 is a metal plate-like member for installing the tube holding portion 14 and the joint holding portion 16 and has a rectangular shape in plan view. The base 12 is provided with a stopper 18 extending in the vertical direction from the vicinity of one end portion of the upper surface and two cylindrical guides 20 extending in the horizontal direction along the long side from the stopper 18 in parallel with a predetermined distance from each other. It is done.

  The tube holding portion 14 includes a block-shaped base member 22. More specifically, when the joint insertion jig 10 is viewed from the side surface, the horizontal portion 22 a extending in the horizontal direction and the vertical portion 22 b extending in the vertical direction are seen. It is the resin-like member which exhibits cross-sectional view substantially T-shape consisting of.

  Two guides 20 pass through the vertical portion 22 b of the base member 22, and the base member 22 is configured to be movable along the axial direction of the guide 20.

  A tube fixing groove 22c for guiding and fixing the tube t in a predetermined direction is formed on the upper surface of the base member 22 (horizontal portion 22a). The “predetermined direction” means a direction in which the axial direction of the tube t substantially coincides with the axial direction of the guide 20.

  The tube fixing groove 22c is formed in a concave shape on the upper surface of the base member 22 in accordance with the shape of the tube t. However, the tube fixing for fixing (pressing from above) the tube t near the approximate center position of the tube fixing groove 22c. A claw (not shown) is formed, where the tube t is fixed. As described above, since the tube t has the disk part t1 at the intermediate position, in this embodiment, the tube fixing claw is provided so as to press the disk part t1.

  The joint holding portion 16 is disposed so as to face the tube holding portion 14, and the joint c is positioned so that the axial center of the joint c is coaxially or substantially coaxial with the axial center of the tube t held by the tube holding portion 14. Hold.

  The joint holding portion 16 includes a block-shaped base member 24 as in the tube holding portion 14, but has a more specific shape that is substantially a cube, unlike the tube holding portion 14.

  The end portion of the guide 20 is fixed below the surface of the joint holding portion 16 facing the tube holding portion 14.

  A joint fixing base 24 a for fixing the joint c is detachably provided on the upper surface of the joint holding portion 16 from the base member 24. A groove corresponding to the shape of the joint c (for example, an I-shaped joint in addition to the L-shaped joint shown in FIG. 2) is cut on the surface of the joint fixing base 24a facing the tube holding portion 14. The joint c can be inserted into the groove from the axial direction of the guide 20 and set.

  By adopting a configuration in which the joint c is inserted from the axial direction of the guide 20, after the tube t is inserted into the joint c, the tube c is inserted into the joint fixing base by returning the tube holding portion 14 to the original position. 24a can be taken out. However, the fixing method of the joint c is limited to the above method as long as the axis of the joint c can be fixed so as to be positioned coaxially or substantially coaxially with the axial center of the tube t held by the tube holding portion 14. Not.

  Next, the operation of the joint insertion jig 10 according to this embodiment will be described. FIG. 3 is an explanatory diagram for explaining how the tube is inserted into the joint in the joint insertion jig.

  First, as shown in FIG. 3A, when the tube t and the joint c are set in the tube holding part 14 and the joint holding part 16, respectively, the tube holding part 14 is moved along the guide 20. In this embodiment, the operator manually moves the tube holding portion 14.

  Next, as shown in FIG. 3B, when the tube holding part 14 moves a predetermined distance and reaches a predetermined position, air is supplied from the air supply part 30 to the inside (inner cylinder part) of the tube t (tube t Air is supplied from the end t3 on the side opposite to the end t2 on the side where the joint c is inserted into the tube t).

  When air is supplied from the air supply unit 30 to the inside of the tube t, the inner diameter of the tube t is increased, so that the tube t can be easily inserted into the joint c.

  The air supply unit 30 is inserted into an air supply source (not shown), an air discharge port 30a, an air supply path 30b connecting the air supply source and the air discharge port 30a, and the air supply path 30b. It comprises a two-port switching valve (mechanical air valve) 30c for switching communication / blocking between the supply source and the air discharge port 30a.

  Switching between communication / blocking between the air supply source and the air discharge port 30a is performed by turning on / off a switch 30d provided in the switching valve 30c. The switching valve 30c allows the air supply source and the air discharge port 30a to communicate with each other when the switch 30d is turned on, and blocks the communication between the air supply source and the air discharge port 30a when the switch 30d is off.

  The switching valve 30c is installed on the side of the guide 20 between the tube holding part 14 and the joint holding part 16 in a state where the tube holding part 14 is not moved (the state shown in FIG. 3A). The When the tube holding part 14 moves by a predetermined distance, the switching valve 30c has a base member 22, more specifically, one of the vertical parts 22b of the base member 22 on the side orthogonal to the moving direction of the tube holding part 14. It is installed at a position where the switch 30d is turned on by the wall surface.

  FIG. 4 is an explanatory diagram for explaining how the movement position of the tube holding portion is detected.

  As shown in FIG. 4A, in a situation where the moving position of the tube holding portion 14 has not yet reached the predetermined position, the switching valve 30c is located between the tube holding portion 14 and the joint holding portion 16, and the switching valve 30c. The switch 30d is off. Therefore, air is not supplied into the tube t.

  However, when the tube holding part 14 moves a predetermined distance and reaches a predetermined position, as shown in FIG. 4B, the switch 30d is turned on, the switching valve 30c is opened, and the supply of air is started.

  The switch 30d is turned on when one wall surface of the vertical portion 22b of the base member 22 of the tube holding portion 14 comes into contact. Specifically, the switch 30d is turned on to one wall surface of the vertical portion 22b. Therefore, a convex guide 22d protruding in a trapezoidal shape is provided on the switch 30d side.

  In the trapezoidal convex guide 22d, a portion corresponding to the lower bottom is attached to the wall surface of the vertical portion 22b, and a portion corresponding to the upper bottom contacts the switch 30d. Accordingly, when the tube holding portion 14 moves by a predetermined distance, the switch 30d first comes into contact with a portion corresponding to one leg of the convex guide 22d, and then is turned on for a while at a portion corresponding to the upper bottom, It turns off while contacting the portion corresponding to the leg, and moves away from the convex guide 22d.

  Therefore, by adjusting the position where the convex guide 22d is attached and the length of the portion corresponding to the upper base of the convex guide 22d, the position where the switch 30d is turned on and the time during which it is turned on, in other words, the supply of air is started. It is possible to adjust the position to perform and the time for supplying air.

  In FIG. 4C, air is still being supplied because the switch 30d is turned on by the convex guide 22d.

  However, in FIG. 4D, the tube holding portion 14 is further moved by a predetermined distance, and the switch 30d passes the convex guide 22d. Therefore, the switch 30d is turned off again, and the supply of air is stopped.

  Returning to the description of FIG. 3, as shown in FIG. 3C, since air is supplied to the inside of the tube t, the inner diameter of the tube t is expanded by the air, and the joint c is connected to the tube t. It is easy to insert into t. Accordingly, the joint c is smoothly inserted into the tube t.

  In FIG. 3D, the joint c is completely inserted into the tube t, and the switch 30d of the switching valve 30c is also turned off, so that the supply of air is also stopped.

  As described above, in the embodiment of the present invention, the tube holding portion 14 that holds the tube t and the tube holding portion 14 are disposed so as to be opposed to and coaxial with or substantially coaxial with the axis of the tube t. And a joint holding portion 16 for holding the joint c so that the axis of the joint c is located at least one of the tube holding portion 14 and the joint holding portion 16 is moved in the axial direction of the tube t. Thus, the joint insertion jig 10 in which the joint c is inserted into one end t2 of the tube t is configured to include an air supply portion 30 capable of supplying air into the tube t.

  Thereby, while being a simple and compact structure, the diameter of the tube t can be increased by supplying air, so that the joint c can be easily inserted into the end t2 of the tube t. Highly accurate work can be performed regardless of whether there is a fault.

  Further, since the air supply unit 30 is configured to supply the air into the tube t from the other end t3 to the one end t2, the joint c is further provided at the end (other end) t2 of the tube t. Can be inserted easily.

  In addition, a moving position detecting means 30c for detecting a moving position of the tube holding part 14 or the joint holding part 16 is provided, and when the air supply part 30 detects that the moving position has reached a predetermined position, Since air is supplied to the inside of the tube t, the air supply timing can be optimized.

  In the embodiment, the example in which the operator manually moves the tube holding unit 14 is shown. However, the movement of the tube holding unit 14 is not limited to this, and for example, a drive source such as a motor or an actuator and the like. You may make it carry out automatically using the controller etc. which control this.

Further, the joint holding part 16 is fixed to the base 12 and the tube holding part 14 is configured to be movable. However, the present invention is not limited to this, and the tube holding part 14 is fixed to the base 12 and the joint holding part is provided. 16 may be movable. Further, both the tube holding part 14 and the joint holding part 16 may be movable.

  Further, it is detected by the switch 30d provided in the switching valve 30c that the moving position of the tube holding portion 14 has reached a predetermined position. When the switch 30d is turned on, the switching valve 30c is switched (opened). ) Although air is supplied, the present invention is not limited to this. For example, a sensor for detecting the movement position of the tube holding portion 14 (regardless of a contact type / non-contact type sensor) is provided. The sensor may be used to determine whether or not the tube holder 14 has reached a predetermined position, and air may be supplied when it is determined that the tube holder 14 has reached a predetermined position.

  The tube t and the joint c shown in the embodiment are merely examples, and other tubes and joints having different shapes and sizes may be used.

  Although the shape and the material of the base 12 and the base member 22 of the tube holding part 14 or the base member 24 of the joint holding part 16 are specifically shown, the shape and the material are not limited thereto.

  10 joint insertion jig, 12 base, 14 tube holding part, 16 joint holding part, 30 air supply part, 30c switching valve, t tube, one end of t2 tube t, other end of t3 tube t, c joint

Claims (3)

A tube holding portion that holds the tube, and a joint holding portion that is disposed to face the tube holding portion and holds the joint such that the joint axis is located coaxially or substantially coaxially with the tube axis. A joint insertion jig in which at least one of the tube holding portion and the joint holding portion is moved in the axial direction of the tube so that the joint is inserted into one end of the tube. An air supply unit capable of supplying air to the tube, and provided between the tube holding unit and the joint holding unit to move at least one of the tube holding unit and the joint holding unit in the axial direction of the tube A switch for detecting a movement position of the tube holding part or the joint holding part, and a projection protruding toward the switch side to the tube holding part. Given that is provided the joint holding portion, further comprising a convex guide tube holder and that with the least movement of one of the joint holding part in contact with the switch, the air supply unit, the movement position A joint insertion jig characterized by supplying air into the tube when it is detected that the position has been reached .   The joint insertion jig according to claim 1, wherein the air supply unit supplies the air into the tube from the other end with respect to the one end. The air supply unit is interposed in the air supply source, the air discharge port, the air supply path that connects the air supply source and the air discharge port, and the air supply path. 3. A switching valve for switching communication / blocking with a discharge port, wherein the switch is provided in the switching valve, and the switching valve is switched according to on / off of the switch. Fitting insertion jig.

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