JPS60245897A - Hose joint fitting incorporating machine - 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 of the Invention] The present invention relates to a hose fitting fitting assembly machine that automatically incorporates a fitting fitting (socket) into a high-pressure rubber hose and tightens and fixes the fitting together with a press. be.

[Technical background of the invention and its problems]

A high-pressure rubber hose l, which is generally used to connect a hydraulic circuit, is made of a thick-walled rubber tube 2 covered with a rubber cover 4, which serves as an outer skin, through a reinforcing layer 3 made of wire mesh or the like wrapped around the outer periphery, as shown in Fig. 6. It has a structure. A fitting 5 is attached to the end of the high-pressure rubber hose l that will be the connection part, but since the rubber cover 4 that serves as the outer skin is an elastic body, the rubber cover 4 at this end is removed and the reinforcing layer 3 is removed. is exposed, and the joint fitting 5 is inserted there and tightened and fixed together.

Conventionally, the method of connecting this joint fitting 5 is as shown in FIG. Then, as shown in Fig. 8, the pawls 8 are arranged radially, and as the cam ring 9 rotates, the pawls 8 move radially toward the center. The joint fitting 5 was set in a moving eight-way tightening press 10, pressed from eight directions, and was integrally tightened and fixed to the high-pressure rubber hose 1, resulting in the structure shown in FIG. 6.

However, in the conventional method, the assembly and press-fitting of the joint fittings 5 and the pressing by the hemlock press 10 are performed in separate steps, which has the disadvantage of poor workability.

[Purpose of the invention]

As a result of various studies in view of this point, the present invention provides a hose fitting fitting assembly machine that improves workability by performing compression fitting fitting fitting fitting and hemwise tightening press work with one device. The purpose is to

[Summary of the invention]

In the present invention, a high-pressure rubber hose is clamped from both sides, the end of the hose is press-fitted into a joint fitting attached to a core metal with a stopper provided through a hexagonal tightening press, and then the core metal with a stopper and the clamping device are fixed. Embodiments of the invention are characterized in that the joint fittings are tightened and pressed in a state in which the hose is free in the axial direction by releasing the rubber hose, and the rubber hose is tightened and fixed together while releasing the elongation of the rubber hose. ] Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

A cylinder 12 is provided on the support Q11, and a clamp 13 is attached to the tip of the cylinder 12, forming a clamp device 6 for clamping the high pressure rubber hose 1 from both sides. Furthermore, another cylinder 14 is connected to the support stand 11 and supported so as to be movable in the direction of arrow B on a table 15.

A forward tightening press 10 is arranged in front of the clamping device 6, and as shown in FIG.
Eight pieces 16 having curved rear ends are arranged radially in a ring-shaped holder 17, and the outer side of the pieces 16 is surrounded by a cam ring 18.

The cam ring 18 is rotated in the direction of the arrow by a drive mechanism (not shown), and furthermore, a curved cam surface 19 and eight escape grooves 20 are formed alternately on the inner peripheral edge of the cam ring 18. , the cam surface 19 pushes the top 16 inward and moves the claws 8 from eight directions toward the center.

2 is a core metal with a stopper, and this core metal part 22 passes through the center of the forward tightening press 10. Further, the cylindrical stopper part 23 has an inclined surface 24 formed at its end.
It is movably supported in the middle by a cylindrical sleeve 25.

Reference numeral 26 denotes a table, and a support base 27 is movably supported on the table 26 by a feed screw mechanism. A cylinder 28 is attached to the support base 27 facing upward, and a wedge 29 is provided at the upper end of the cylinder 28 so as to come into contact with the inclined surface 24 of the stopper portion 23. A support plate 30 is attached to the support stand 27 and comes into contact with one side of the wedge 29.

A pressure detection device (not shown) is attached to the hemlock press 10, and the cylinder 12.
A control mechanism is provided for operating 28.

Next, the operation of the assembling machine having the above structure will be explained.

First, the joint fitting 5 is attached to the core metal part 2 of the core metal 21 with a stopper.
2 and position it on the stopper part 23. Next, remove the rubber cover 4 from the tip of the high pressure rubber hose l.
Insert it into the core metal part 22 from the tip side, and set the middle part to the clamp device 6.

Next, a switch (not shown) is turned on, the cylinder 12 is moved in the direction of arrow A, and the high pressure rubber hose 1 is clamped and supported from both sides by the clamps 13. When the cylinder 14 is then operated, the support base 11 moves on the table 15 in the direction of arrow B, and the tip of the high-pressure rubber hose l is press-fitted into the joint fitting 5 while being clamped, as shown in FIG. Incorporation is performed. At this time, the pressure applied from the cylinder 14 to the stoppered core metal 21 is supported by the support plate 30 via the wedge 29.

Next, when the drive mechanism (not shown) of the hexagonal tightening press 10 is operated to rotate the cam ring 18 in the direction of the arrow as shown in FIG. The claws 8 placed in the contact fittings 5 hit the joint fittings 5. The oil pressure at this time is detected by a pressure detection device, and when it reaches a predetermined pressure, the control mechanism is activated to
．． 28 to the contraction side.

As a result, the clamp 13 connected to the cylinder 12 is opened and the high pressure rubber hose l is unclamped, and the wedge 29 attached to the upper end of the cylinder 28 is lowered as shown in FIG. The inclined surface 24 of 21 and the wedge 29 are separated and become freely movable in the axial direction, and the high pressure rubber hose 1 becomes free in the axial direction.

In this state, the claws 8 are further moved toward the center, and the joint fitting 5 is tightened toward the center under high pressure to integrally connect it to the high-pressure rubber hose 1. By tightening this joint fitting 5 ・inward,
Although the high-pressure rubber hose 1 stretches back and forth along the axial direction and undergoes plastic deformation, it is maintained in a free state, so that it is firmly connected to the joint A5.

When this forward tightening press operation is completed and the claws 8 are opened, the cylinder 12.28 is operated again in the extending direction, and the clamp 13 clamps and holds the high pressure rubber hose l from both sides, and the wedge 29 is It rises and is inserted between the stoppered core metal 2 and the support plate 30. Next, the cylinder 14 moves in the direction opposite to the direction of arrow B, and the high-pressure rubber hose l to which the fitting 5 is connected is pulled out from the tightening press lO, and then the cylinder I2 is operated to the contraction side to release the clamp 13, Take out the high pressure rubber hose 1,
Finish the series of steps.

In the above embodiments, the hexagonal tightening press 10 and [2] are shown in which the pawls 8 move in the radial direction, but a press in which the claws 8 move in the axial direction and tighten at the center may also be used. Further, the support mechanism for fixedly and movably supporting the stoppered core metal 2) along the axial direction is not limited to the one using the wedge 29 as in the above embodiment, but may be of other structure.

〔Effect of the invention〕

As explained above, according to the hose fitting fitting assembling machine according to the present invention, the press-fitting fitting of the fitting fitting, which was conventionally done in separate processes, and the hemlock press work can be performed in one machine, thereby improving work efficiency. Moreover, it has a remarkable effect in that it can release the elongation in the axial direction of the rubber hose and securely tighten it in the hemwise tightening press state. 5

[Brief explanation of drawings]

Fig. 1 and Fig. 5 show a simple embodiment of the present invention. Fig. 1 is a side view of a hose joint fitting assembled, Fig. 2 is a plan view thereof, and Fig. 3 is a hem tightening press. Main part vertical front view, No. 4
5 and 5 are side views of main parts showing the operating state of the wedge,
FIG. 6 is a side view of a new high-pressure rubber hose, FIG. 7 is a plan view showing a state in which a joint fitting is installed in a conventional device, and FIG. 8 is a longitudinal sectional side view of a hemlock press. No...High pressure rubber hose 2...Rubber tube 5...
・Joint fitting 6...Clamp device 8...Claw 10・
... Height tightening press 12.14.28 ... Cylinder 13 ... Clamp 18 ... Cam ring 21 ...
Core metal with stopper 22... Core metal part 23... Stopper part 24...
・Slope 29...Fusa, Bi Applicant Agent 1N 3 Figure 1゜Figure 4 Figure 5 Figure 6rlJ Figure 8 0

Claims (1)

[Claims] A clamp mechanism that clamps the hose from both sides, a drive mechanism that moves this clamp mechanism in the axial direction, and radially provided claws located in front of this drive mechanism that operate from eight directions toward the center, It consists of an Happo-jime press for pressing, a core metal with a stopper supported through the center of the Happo-jime press, and a support mechanism that fixes and movably supports this core metal with a stopper in the axial direction. A hose joint fitting assembly machine featuring: