JPS58102636A - Boot and boot ring fitting device for oil hydraulic actuator - Google Patents

Abstract

PURPOSE:To facilitate and quicken the fitting work of boots and boot rings, in an automatic assembly device in which a boot and a boot ring are fitted to seal the gap between cylinder and piston, by inserting the boot between the cylinder and piston under guidance of a tapered guide piece. CONSTITUTION:A guide piece 2 is set at the working end of the piston 7 inserted in a cylinder 6, and a boot 3 is placed from over the guide piece 2. The shaft part 16 of a drift finger is inserted in a vertical hole provided in the guide piece 2, and grooves in pawls 18, 18 of the drift finger levers 13, 13 are put in contact with a ring-shaped projection provided at the boot 3, where two points in the ring at the internal circumference of the boot 3 are enlarged gradually by the pawls 18, 18 to be guided along the tapered surface of the guide piece 2 in accompany with sink of the drift finger to insert the boot 3 between the piston 7 and cylinder 6.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is assembled to the open end of a cylinder of a hydraulic actuator and the working end of a piston that is slidably fitted into the cylinder and can move forward and backward by hydraulic operation, for sealing between the cylinder and the piston. Conventionally, assembling boots and boot rings was done by hand, which was not only inefficient but also labor intensive. It is a process that requires delicate movements and skill, and the output varies greatly depending on the level of proficiency, and it was a major barrier to achieving multi-skilled work or reducing the number of workers. ◎ Honto #4 addresses these obstacles. This was done in order to solve the problem of the drift caused by the guide element that is set at the piston operating end and the drift that is guided by the guide and is provided on the outer periphery of the piston operating end to push in the boot fitting #1IIC boot and boot ring. Finkar and force are the same thing. In other words, the upper ends of the pair of drift finger rods each having a claw body with a concave portion corresponding to the shape of the annular protrusion of the boot at the bottom thereof are placed at symmetrical positions above the longitudinally elongated drift finger body. Each of the triad fingers is movable (pivotally attached and suspended), and a portion having a stepped portion with a diameter smaller than that of the main body is provided at the bottom of the triad finger body, so that the pawl body corresponds to the shaft portion. A drift finger is set at a position where the boot, the boot ring, and the drift finger are guided, and the shaft is set at the piston operating end and has a vertical hole in the center for rotatably fitting the shaft of the drift finger. The guide element has a generally ladder-shaped cross section in one direction.

Below, an embodiment of the device of the present invention will be explained in terms of rotation. Figure 1 shows the drift fingers of the device of the present invention.
It is also an exploded explanatory view of the boot (2), the boot ring (2), and the cylinder (6) and piston (7) of the hydraulic actuator (2).

The drift finger ■ has protrusions (11) (1) on the upper left and right sides.
1) and a vertically elongated substantially T-shaped drift finger main body (12) and the protrusion (II).
A pair of drift finger rods (13x13) are pivoted and suspended, and a pair of drift finger rods (13
c Handle part (14) and stepped part (15) provided at the bottom of the main body
A shaft 1 (16) with a diameter of Part (17
) on the lower part of the claw body (18) (1g), lower 4
i11EK and republic those claw bodies (18) (18)
The upper end (1
9) (19) is the protrusion (11) (1) of the main body (12).
1) with a pin (11' x 11') so as to be swingable and suspended.--The shaft part (16
) has a smaller diameter than the main body and is formed into a stepped part (15)', and this stepped part (15) is provided with a bearing (15') for making the direction of rotation circular. The claw body (
18) (18) #i Position K corresponding to the shaft portion (16)
In addition, the engagement between the pair of claw bodies is set to be approximately equal to the inner diameter of the boot.

Guide ■/Ii has a roughly ladder-shaped cross section in the direction of rotation, and is a piston operating part (71) & tC set companion, piston-mouth part (
It has a fitting part (21)i-at the lower part corresponding to the shaft part (16) of the drift finger body (12).
) has a vertical hole (22) in the center that rotates freely, and is provided on the outer periphery of the piston operating end. )
In order to guide the drift fin car ■, the outer diameter (1) of the top 11s (23) of the certain inner lobe) is the inner diameter of the boot -)
Smaller and piston operated! @(71) Outer diameter (e) of the skirt (24) in contact with the piston operating direction (71)
) are set slightly larger than the outer diameter (d) of the top part (2
3) and the hem (24) are formed with four tapered surfaces (25).

Now, to explain the operation of the device of the present invention with reference to FIG. ) Place the boots (3) on top. So L7
Insert the details of the drift finger (L61) into the V-hole of the guide (2) and insert the drift finger rod 1.
131. C31 claw body α&.

The open concave groove 0η, Q7) is brought into contact with the annular protrusion 6υ of the boot, and as the drift finger +11 descends, the 2117+r of the ear C13 on the inner circumference of the boot is brought into contact with the taper th+□□□( 2. Claw body guided along Q&, 0■
It is gradually expanded by (two pushes). At that time, the
), as shown in (b), the boots (3: are the guides (2:
Since it is restrained by the claws ON and C81 along the tapered surface (c) of the boot, the areas around the boot at two points that are restrained by the claws AS and US are stretched when approaching the hem (to). , the width of the boots Enzuka Miyako (el is the piston operation h m 1
The gap U between 71J and the cylinder opening end becomes narrower when the drift finger (II) is in contact with the top of the guide (21). The respective boot fittings 1111a and (1
Smooth l: interspersed with 4. 3 (al is a partial explanatory diagram when the boot (3) is attached to the guide element (21),
-1bl is boots (31 is claw body Q81, boots song groove 1
4 and (11=partial explanatory diagrams of the fitting dimension 1 are shown respectively) T0 Further, the inidrift finger +11 is rotated several 1111 times around the shaft part (=therefore, the boot (3) v is rotated over the entire circumference. It can be assembled to the boot soft white groove ring and C10.In that case, as shown in FIG. Since the oscillation points l and 2 are connected with each other with a slight gap between them, by rotating the drift finger 111, the drift fins can be rotated by a gap of 11 (arrows 5 and 5). )
It also includes a mechanism for moving the boot (3) in the opposite direction to the four-turn direction to a slightly outer position (18') and forcing the boot (3) into the boot fitting groove of the cylinder (6). Furthermore, w14
Figures (a) and (bl show a side view and a partial orientation view of the drift finger, respectively.
5') is provided, and the same rotation of the drift finger (11) can be performed smoothly. Since it has an inner two-arc shape corresponding to the protrusion C1l+, there is no need to get the boots together.

Furthermore, assemble the boot ring (41?1'
The installation of the missing boots is completed.

As mentioned above, the device of the present invention allows anyone to easily and quickly assemble boots and boot rings instead of the conventional manual work of attaching hot wires, which not only improves productivity but also , Labor saving - This is an abstract thing that connects the two.

[Brief explanation of drawings]

Figure 1 is an exploded view of the device of the present invention, hydraulic actuator, boot, and boot ring. Figure 2 is an explanatory diagram of the operation of the device of the present invention. The third factor (al is the part when the boot is placed on the guide) Explanatory drawing, (BL is a partial explanatory drawing of the boot just before it is inserted into the boot fitting with the claw body, FIG. 4 (AL, (BL is a side view of the drift finger and a plan view of the drift finger, respectively) .l・・・・・・－・・・・・・ Drift finger 2...
・・・・・・・・・Guidance 3・・・・・−・・Boots 4・・・・・・・−・・Boot ring 5・−・・・・−
・・・・・・Hydraulic actuating device 6・・−・−・−・・・Cylinder tough・・−・−・−・−・・Piston 12・・・・・・・・・・・・−・−・・ Drift finger Main body 13...Drift finger rod 14...Handle 16...Shaft 18・・・・・・〜・−・・・・・・Claw body figure 2 (b)

Claims (1)

[Scope of Claims] U) A vertically elongated substantially T-shaped drift finger body having protrusions on the left and right sides is provided with a handle at the top, and a lower part of the drift finger body has a step portion with a diameter smaller than that of the body. A pair of claws having a shaft portion having a shaft portion and a claw body having a downwardly facing concave groove portion corresponding to an annular protrusion of the boot at the lower end thereof and extending symmetrically upward from the claw body in a substantially S-shape. The upper ends of each of the drift finger rods are pivotally connected to and suspended from the left and right protrusions of the drift finger body,
In order to force the drift fin, the claw body is set at a position corresponding to the shaft, and the drift fin is set at the working end of the piston, and the shaft of the drift fin body is rotated. A generally trapezoidal cross-section in the rotational direction for guiding the boot, boot ring and drift finger into the boot fitting groove provided at the edge of the piston operating end -/S, P#J. A boot and boot ring assembly device for a hydraulically actuated device consisting of a guide element and a force member. (The boot and boot ring assembly device for a hydraulically actuated device according to claim 4, wherein the concave groove of the four-claw body has an arc shape corresponding to the annular protrusion of the boot. Claim 1 or 2, characterized in that the spacing between the pawl bodies of a pair of drift finger rods pivotally connected to and suspended from one add finger body is set to be approximately equal to the inner diameter of the boot. A boot and boot ring assembly device for a hydraulically actuated device. (4) Patent claim #1 in which a pair of rings is provided at the step between the triad finger body and the shaft, which is the tw value.
1! , a boot and boot ring assembly device for a hydraulically actuated device according to any one of items 1 to 3. (5) The outer diameter of the top of the guide, which has a substantially trapezoidal cross section in the direction of rotation, is smaller than the inner diameter of the boot, and the outer diameter of the skirt that contacts the piston operating end of L2) is slightly larger than the outer diameter of the piston operating end.脣F characterized by being set! ff#f
4. The boot and boot ring assembly device for a hydraulically actuated device according to item 1, which is any one of items 1 to 4. (6) Any one of claims 1 to 5, characterized in that a fitting part corresponding to the piston opening is provided at the lower part of the guide set at the piston operating end. A boot and boot ring assembly device for a hydraulically actuated device as described in .