JPS60161075A - Device for incorporating elastic ring - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a one-time elastic ring assembly device for mounting an elastic ring such as an O-ring into a groove of a II ('J4) component.

[Prior art]

Conventionally, when inserting an elastic ring into the groove of a component (A), the insertion was tightened only by the elastic force of the elastic ring. After inserting the assembly into the housing C, when assembling the assembly part into the housing d, which is another member C, the elastic ring a
When it is fully inserted into C and Jj is protruding,
As shown in FIG. 9, the end of the elastic ring a may be pinched and a portion of the elastic ring C may protrude. As a result, the pinched portion may be cut off, which has a negative effect on the sealing effect.

(Object of the Invention) In order to eliminate the above-mentioned conventional drawbacks, the present invention attempts to provide an elastic ring assembly device that can reliably attach an elastic ring to a groove of an assembly component.

[Structure of the invention]

The present invention is an assembling device for inserting an elastic ring into a groove of an assembled part, which comprises a rotatable work head and a movable connection provided to be able to reciprocate in the direction of the rotation axis of the work head. between the elastic ring support position which is linked to the movable connecting body and expands and supports the elastic ring, and the elastic ring insertion position where the elastic ring is inserted into the groove of the set (=j parts). multiple support claws,
an elastic ring pressing device that is installed in the work head and has a part that can freely approach the groove of the component, and that presses the elastic ring inserted into the groove in the direction of the groove; It consists of

Here, the elastic ring suppressing device is used to further press the elastic ring inserted into the groove of the assembled component from the outside by the action of the support claw to ensure that the elastic ring is inserted into the groove, In a preferred embodiment, a cylinder member is fixed to the work head, compressed air is sent into the cylinder, a piston that is reciprocally movable within the cylinder is pressed, and a ring presser member that is swingably provided is actuated. It is preferable that a roller provided at the lower end of the holding member be in contact with the elastic ring, and the roller may be transferred onto the elastic ring by rotating the working rod.

〔Effect of the invention〕

According to the present invention, the elastic ring can be inserted into the groove of the component during assembly by the operation of the support claw, and after the insertion, the elastic ring can be reliably pressed and inserted into the groove by the elastic ring suppressing device. In the assembly after the charging, even when the parts are assembled into the housing, there is no possibility that a part of the elastic ring will be caught between the housing and the assembled parts and cut off.

(Example〕 Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the present invention, with reference numeral 1 in the figure.
．． Reference numerals 2 denote work heads fixed to each other, and the upper lj side work head 1 of the work heads 1.2 is rotatably supported at the tip of the arm of the robot at a portion not shown, and is driven by a drive motor. Two cylinders 2a and 2b are formed in the working head 2 on the lower side, which is connected to a rotatably driven tray seat, and both working heads 1.2 are connected to a shaft PII.
It can be rotated around O.

A first piston 4 urged downward by a spring 3 is provided in the cylinder 2a so as to be movable in the axial direction, and a spring 5 is provided in the other cylinder 21).
A second screw 1 hem 6, which is biased upward by , is provided so as to be slidable in the axial direction.Air chambers 4A and 6 are provided on the lower surface of the first piston 4 and the upper surface of the second piston 6, respectively.
A is formed. The first piston 4 is formed with a downwardly extending radial portion 4a, and the second piston 6 is formed with a radius 4a extending downward.
A movable connecting body 7 is screwed to the connecting body 7, and the rod portion 4a is configured to be able to freely slide back and forth within the center hole of the connecting body 7.

There are six (third
A support body 8 (see figure) is fixed by a bolt 9 (see Figure 2). The upper end of a link 11 is pivotally attached to the inside of each support 8 by a pin 12, while the movable linkage 7
Another link 13 is pivotally connected to the lower end of the link 13 by a pin 14, and the other end of the link 13 is connected to the link 1 by a pin 15.
It is pivotally mounted approximately at the center of 1. Further, an intermediate member 16 is fixed to the lower end of the support body 8, a guide groove 18 is formed in the lateral direction in the intermediate member 16, and a pin provided at the lower end of the link 11 is formed in the longitudinal direction of the groove 18. 19 is slidably engaged.

Further, the support claw 21 (
A total of 6 pieces) are pivotally attached to the lower end of the link 11, and 2 pieces for the nucleus.
1 can swing around the bottle 19 and at the same time can move in the longitudinal direction of the guide groove 18. On the other hand, a movable connecting body 22 is screwed to the lower end of the rod portion 4a, and one end of a link 23 is attached to a pin 24 at six locations on the circumference of the lower end of the connecting body 22.
The other end of the link 23 is pivotally connected to the support claw 2.
1 by means of a pin 25.

In FIG. 3 and FIG. 4, which is a sectional view taken along the arrows IV-IV IfA of FIG. A piston 27 that is movable up and down is mounted inside the piston 27, and a ring holding member 29 that can swing freely around the bottle 28 is pivotally attached to the lower end of the piston 27. An air chamber 27A is formed on the upper surface of the piston 27, into which compressed air can be fed through an inlet 27B. A roller 31 is mounted on the lower end of the ring pressing member 29.

Each component numbered 26 to 31 above constitutes the "elastic ring suppression device" D.

(Usually, the roller 31 is held in a position where it does not interfere with the insertion of the elastic ring a by the action of the spring 32, but compressed air is sent into the air v27Δ and the screw I-on 27 is sprung. The member 29 swings as shown by the two-dot chain line in FIG. 4, and the roller 31 presses an elastic ring (not shown) into the groove C of the assembly part.

Further, four of the six support members 8 are pressed against a bending portion extending downward from the support plate 1-17 fixed to the support member 8 so as to be able to reciprocate in the vertical direction. The rod 33 is cut in stages. Large diameter portions 338 and 33b are formed at the upper and lower ends of the rod 33, respectively.
a is urged upward by a coil spring 34. When the above-mentioned movable coupling body 7 descends, the upper end face of the upper large diameter portion 33a is pressed by the radially extending portion 7a, and the descending large diameter portion 33b descends to the position indicated by the two-dot chain line in FIG. It is now possible to do so. The above pressing is done by rod 33. Spring 34. Plate 17 presses
J&:J[1 device QJE is constructed.

Next, the operation of this embodiment will be described.

In this device in the state shown in Fig. 1, the rond part 4a is raised by sending compressed air to the air chamber 4A, and the lower link 23.21 is moved to the state shown in Fig. 5 (this state is the "elastic ring removal position"). (referred to as °°). In this state, by moving the entire device mounted on the robot arm, the inner periphery of the uppermost O-ring a installed on the outside of the storage drum 35 as shown in FIG. , position the lower end protrusion 21a of the support claw 21,
By lowering the rod 4a again, the support claw 21 is swung as shown by the two-dot chain line in FIG. (referred to as Pa)'c is maintained.

Next, the entire device is moved to a place where the parts are placed as shown in FIG. 6, and compressed air is sent to the air chamber 6A shown in FIG. is lowered, the link 11 is swung around the bin 12 via the link 13, and the bin 19 is rotated outward along the guide groove 18. As a result, the link 21 is moved around the bin 25.
As a result, the O-ring a comes off the lower end projection 21a of the link 21 and pops out, and the assembled parts It is inserted into the groove C of the drain plate.

However, the ring a is not always inserted accurately into the groove C, and instead protrudes as shown in the protrusion ff1e in FIG. 7, which causes the ring breakage phenomenon as shown in FIG. 9. For this reason, the elastic ring suppressing device shown in FIG. The ring presser member 29 is press-fed to the chamber 27A and placed in the bottle 2.
With the roller 31 in contact with the ring a, the entire device is further rotated around the axis 0. In the case of the rod device E with 131qI, when the elastic ring insertion position is reached as shown in FIG. 6, the movable connecting body 7 is lowered to the position shown in FIG. 6, and the extending portion 7a is pushed during this downward movement. (By pressing the upper end surface of the Nororad 33, the lower large diameter portion 33b acts to reliably push the elastic ring a into the groove C. However, this pressing is not always necessary for the Rondo mounting ME. .

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, FIG. 2 is a partial side view seen from the ■ direction in FIG. 1, and FIG.
-■ cross-sectional view from the line arrow, Figure 4 is the IV -TV line arrow in Figure 3? J! 5 and 6 are operating state diagrams showing the lower half of FIG. 1, and FIG.
Figures 8 and 9 show conventional examples, and the assembly is performed by assembling the elastic ring a to the component, and then assembling the component to the housing d. It is a sectional view showing the situation. 1.2...Working head 4,6...Piston 7...
・Movable connection body 11. ．． 13...Link 21...Support claw D...Elastic ring pressing device E...Press is rod device a...Elastic ring (0 ring) b...Assembly [Pu parts patent applicant] Toyoda Machinery Co., Ltd. Figure 1 Crow', 3 [;1 Construction 4+''1 Figure 8 1 Figure 91/21

Claims (2)

[Claims] (1) Assembling an elastic ring [J a movable connecting body linked to the movable connecting body and extending and supporting at least the elastic ring between an elastic ring supporting position and a ring position where the bullet is inserted into the groove of the silk threading part; a plurality of support claws that are swingable in the
The elastic ring assembly is characterized by comprising an elastic ring pressing device that presses the elastic ring inserted into the groove in the direction of the groove, with the part that can freely approach and separate from 1111 of the butt part on the right side. dino equipment. (2) The elastic ring pressing device includes a cylinder member fixed to the work head, a piston member that reciprocates within the cylinder member, a ring holding member that is swung by the screw ring, and the presser. 2. The elastic ring assembly device according to claim 1, comprising a roller provided at an end of the member (pulled and brought into contact with the elastic ring).