JPH0440855Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a machine for press-fitting a fitting into a hose.

<Prior art and its problems> Generally, when connecting and fixing a fitting to the cut end of a flexible hose made of rubber or synthetic resin, the cut end is crowned with a soft metal cap tube; The fitting is press-fitted into the hose from the cut end, and the tube is caulked and integrated to keep the hose in a compressed state between the inside and outside of the fitting. The opening diameter of the hose is small compared to the fitting, and although the hose is flexible, it is still quite thick and hard, so it is difficult to press the fitting into it securely. It is impossible to set.

Conventionally, the hose has been immersed in hot water to expand and soften, or lubricant oil has been applied between the hose and the fitting, but both methods are extremely troublesome and require large quantities to be processed. Especially if lubricating oil is applied, it may easily come off.

<Means for Solving the Problems> The present invention aims to provide a press-fit setting machine that is useful for improving the above-mentioned problems. In order to press-fit the fitting into the hose from the inside of the hose, there is a ramp that is fixedly installed on the installation board so that it slopes upward at a certain angle; By a pair of left and right side walls that stand up integrally from the stand, or by a plurality of pairs of free-rolling rollers on the left and right that are pivoted in an upright position from the slope, gradually moving forward and downward. A chuck segment receiving recess is formed into a narrow inverted V-shape in plan view, and a chuck segment is slid into the recess from a slope.
and a pair of left and right chuck segments that are received and restrained in such a way that they cannot fall out of the recess, and that create a through hole for receiving a hose on the mutually matching inner surfaces facing each other, and that correspond to the through holes of both chuck segments. The press rod is supported at the rear upper end of the ramp and is moved back and forth in the front and rear directions by an operating handle, and the fitting is temporarily inserted into the cut end of the hose. , the hose is gripped into the through hole of the chuck segment, and the joint fitting is pushed and press-fitted into the hose by forward movement of the pressing rod.

<Example> Hereinafter, the specific configuration of the present invention will be described in detail based on the illustrated example. In FIGS. 1 to 21 showing the entire press-fit setting machine, 11 is placed on a work table T of a constant height. An installation board that is fixed with mounting bolts or a vise, 12 is the required number of supports that are integrally erected from the board surface, and 13 is the support 12.
It is a tilting table that is fixedly supported on the installation board 11 in an upwardly tilted installation state after a certain angle θ, and on the flat surface 14 at the lower front end position, there are a plurality of sets of left and right pairs (Fig. A total of four screw holes 15 and 16 are drilled in such a manner that the left and right intervals W1 and W2 of the set are varied.

In other words, as is clear from FIGS. 1 to 4, a pair of left and right first screw holes 15 are provided in the upper position of the flat surface 14, and the mutual distance W1 between the facing holes is wide.
Similarly, a pair of left and right second screw holes 16 are provided at the lower position of the flat surface 14, with the opposing mutual interval W
2 narrow openings are arranged, and each of them is distributed in a form that is symmetrical with respect to the longitudinal center line Y-Y of the tilting table 13 itself. and,
The first and second screw holes 15 and 16 each have a roller.
The support shafts 17 and 18 are screwed together in a fixed height planted state as shown in FIGS. 5 to 8, and the roller support shafts 17 and 18 have collars 19 and 20.
The idler rollers 21 and 22 are also respectively fitted through the sleeves.

The idle rollers 21, 22 and their spindles 17,
18 are all the same, and the first and second screw holes 15,
Since the left and right mutual intervals W1 and W2 of 16 vary widely as described above, the first and second screw holes 15,
Idle rollers 21, 22 that are planted from 16
Coupled with the constant height of the roller support shafts 17 and 18, the internal space surrounded by the virtual tangent line connecting the left side and the virtual tangent line connecting the right side is generally forward and downward in plan view. The recess G for receiving the chuck segment is defined as an inverted V-shaped chuck segment receiving recess G which becomes narrower toward the end. A total of 4 idle rollers 2 consisting of 2 pairs on the left and right
1 and 22 form the upright side wall surface of the recess G.

In that case, as is clear from FIGS. 1 to 4, the pair of left and right first preliminary screw holes 23 are also located at the upper level of the flat surface 14, and the distance between the left and right first screw holes 15 is W.
1, while a pair of left and right second spare screw holes 24 are also opened at the lower position of the flat surface 14 with a distance W3 between them that is slightly narrower than that of the second screw holes 16. They are opened at a slightly narrow mutual interval W4, and the left-right interval W4 of the second preliminary screw holes 24 is set to be narrower than the left-right interval W3 of the first preliminary screw holes 23.

Then, as suggested from the comparison between FIG. 7 and FIG. 13, the roller support shafts 17 and 18 are removed from the first and second screw holes 15 and 16, and the
By replacing and fastening them into the spare screw holes 23 and 24 of No. 2, the opening groove width of the receiving recess G can be adjusted to be wide or narrow in relation to the size of the chuck segment, which will be described later. If the flexible hose is thick, a large chuck segment is used, and if the hose is thin, a small chuck segment is used, so the idea is to make the receiving recess G correspond to this. The number of pairs of openings of the first and second preliminary screw holes 23 and 24 can be further increased.

Reference numeral 25 denotes a gear box formed in a bulge at the rear upper end position of the inclined table 13, and a pinion gear 26 is installed therein as shown in FIG.
Reference numeral 27 denotes a gear shaft to which the gear 26 is fixedly mounted, and is horizontally suspended along the left-right direction of the inclined table 13, and a square shaft end 28 exposed from the gear box 25 has a gear shaft for rotating the pinion gear 26. An operating handle 29 is attached for this purpose. Although a ratchet handle is shown in the figure as the handle 29, it is of course not limited to this. 30 is a bearing metal of the gear shaft 27, and 31 is a cover plate of the gear box 25, which is fastened to the box 25 with bolts 32.

Further, 33 is a pressing rod that penetrates the gear box 25 so as to be perpendicular to the gear shaft 27 and extends on the longitudinal center line Y-Y of the inclined table 13, and is pressed through a rack gear 34 carved on the lower surface of the pressing rod. and is meshed with the pinion gear 26. Therefore,
By rotating the operating handle 29, the tilting table 13
This results in a forward and backward sliding action along the front and rear directions. Reference numeral 35 designates a centering conical pin screwed into the lower front end position of the pressing rod 33, and 36 represents a stopper pin screwed into the rear upper end position of the pressing rod 33, which defines the working stroke of the pressing rod 33. do. In addition, 37 is a bearing metal of the rod 33, and 38 is a fixing bolt between the tilting table 13 and its support 12.

Further, reference numeral 39 denotes a pair of left and right chuck segments that are inserted and set into the chuck segment receiving recess G from the rear and upper side while utilizing the slope of the inclined table 13, and are assembled. In the aligned state, both outer surfaces exhibit an inverted V-shape in overall plan view, and are received and restrained by the free rotating rollers 21 and 22 arranged in a corresponding manner so that they cannot fall off forward and downward. The two inner surfaces, which are aligned and aligned in the same manner, make it possible to define a through hole S for receiving a hose, which is concentric with the pressing rod 33.

That is, as enlarged in FIGS. 14 to 18, in the upper position of the inner surface of each chuck segment 39, there is a large-diameter groove 40 for relief of the cap cylinder, which becomes a perfect circular opening when aligned. At the lower position of the side surface, a small diameter concave groove 41 for gripping the hose, which becomes an elliptical opening shape when aligned, is machined so as to communicate concentrically with each other, thereby forming a through hole S for receiving the hose. This is how it has become. In addition, the small diameter groove 41 is provided with a spiral strip and other irregularities 42 that function to prevent the hose from slipping.

Then, the cap tube b, which is crowned by the cut end of the flexible hose a, is inserted into the through-hole S of both chuck segments 39 and is received into the large-diameter groove 40 in a relief manner. In addition, the hose a itself is positioned correspondingly to the small diameter groove 41, and the relationship is set such that the hose a itself can be held stably and reliably in conjunction with the concave and convex portions 42 inside thereof.

43 is a step existing at the upper and lower boundary positions of the two types of grooves 40 and 41, and 44 is an alignment guide piece that is attached and integrated with the lower surface of either one of the chuck segments 39 using screws 45 or the like. Since the chuck segment 39 is extended to a length that can receive the other chuck segment 39 from below, when both chuck segments 39 are inserted and set into the recess G, it is possible to prevent the chuck segments 39 from being misaligned with each other. It serves to prevent and maintain the correct state of alignment. It goes without saying that the through hole S is not blocked by the alignment guide piece 44.

Next, FIGS. 24 to 28 show a modification of the present invention, in which the chuck segment receiving recess G is located on the flat surface 1 of the inclined table 13.
A pair of left and right side walls 46, 4 that stand up integrally from 4.
7, it is also defined as an inverted V-shape in plan view. In other words, the idle roller 2 of the basic example above
1 and 22 and their roller support shafts 17 and 18, but even with these rigid side walls 46 and 47, it is possible to receive and restrain the chuck segment 39 so that it cannot fall off forward and downward. Because it can be done, it is worth adopting. The rest of the configuration is substantially the same as the basic example shown in Figs. 1 to 21, so we will only write the corresponding symbols in Figs. 1 to 21 in Figs. 24 to 28 and provide detailed explanations. Omitted.

<Function> When press-fitting the fitting c into the flexible hose a using the present invention having the above configuration, the pressing rod 33 must be retracted backward and upward. , first, a pair of left and right chuck segments 3
9 is slid into the recess G of the inclined table 13 from above and is restrained, while the hose a, whose cut end is previously covered with the cap tube b, is inserted into both chuck segments 39. In this case, both chuck segments 39 are retracted upward and rearward so as to be slightly split open, and the operating hand is released.

By doing so, the outer surfaces of both chuck segments 39 and the recesses G for receiving the chuck segments 39 form an inverted V-shape in plan view that gradually becomes narrower toward the bottom, acting as a so-called wedge. Since the through hole S of the chuck segment 39 is provided with a small diameter groove 41 with unevenness 42, the hose a itself can be inserted into the small diameter groove 41 without fear of falling off or shifting its position. This results in a stable grip. Further, the base tube b is also correctly inserted into the large diameter groove 40.

Therefore, next, temporarily insert and set the fitting c into the cut end of the hose a as shown in FIG.
By advancing the pressing rod 33 forward and downward as shown in Figures 0 and 21, the fitting c is attached to the hose a.
Push it inside. By doing so, a state in which the fitting c is press-fitted into the hose a as shown in FIG. 22 can be obtained. Then, the cap tube b is caulked as shown in FIG. 23, and the connection and fixation between the joint fitting c and the hose a is completed.

In that case, since the joint c has an overhanging flange, there is no risk of over-press-fitting the hose a, but the forward and backward strokes of the press rod 33 can be adjusted in advance using the stopper pin 36. If the positioning is done in advance, it is possible to prevent over- or under-press fitting.

Also, depending on the change in the thickness of the hose a, chuck segments 39 of different sizes with corresponding through holes S may be used. 17 and 18 are replaced with the spare screw holes 23 and 24 of the inclined table 13, thereby making it possible to adapt the device without any trouble. Incidentally, it is also possible to first insert and set the hose a into the through hole S of the chuck segment 39, and then slide it down so as to receive the chuck segment 39 into the recess G and restrain it.

<Effects of the invention> As described above, the present invention provides an installation panel for press-fitting the fitting c into the hose a from the cut end of the flexible hose a with the cap tube b capped. A ramp 13 is fixedly installed to tilt upward after a certain angle θ above the ramp 11;
a pair of left and right side walls 46 that stand up integrally from 3;
47, or by a plurality of pairs of left and right rotating rollers 21, 22 that are pivoted in an upright position from the inclined table 13, the width of the rollers in plan view becomes gradually narrower as it goes forward and downward. A recess G for receiving a chuck segment formed into an inverted V-shape, and a chuck segment that is slid into the recess G from the slope 13 and is received and restrained in such a manner that it cannot fall out from the recess G. At the same time, a pair of left and right chuck segments 39 are formed to form through-holes S for receiving hoses on the mutually aligned inner surfaces facing each other. The hose a is provided with a pressing rod 33 which is supported by a bearing at the upper end position of the rear part and is moved back and forth in the front and rear directions by the operation handle 29, and when the fitting c is temporarily inserted into the cut end of the hose a. is set to be held in the through hole S of the chuck segment 39, and then the fitting c is pushed into the hose a by the forward operation of the pressing rod 33, so as shown at the beginning. The problems of the prior art described above can be easily solved, and the joint fitting c can be press-fitted into the hose a very easily, efficiently and accurately.

In particular, as in the illustrated embodiment, the recess G for receiving the chuck segment 39 is defined by a plurality of idle rollers 21, 22, and the screw holes 15, 16, including the spare screw holes 23 and 24, the chuck segment 39, which has various through holes S depending on the thickness of the hose a, can be inserted into the recess G without that restriction. It can be said that it is even more beneficial in the sense that it can be inserted and used, and that the versatility with respect to changes in the thickness of the hose a can be increased.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention with the idler roller removed, Figures 2 and 3 are side and rear views, and Figure 4 is a sectional view taken along line 4-4 in Figure 2. , Fig. 5 is a perspective view of the present invention showing the state in which the chuck segment is restrained by the idle roller, and Fig. 6 is a perspective view of the present invention.
The figure is also a side view, and figures 7 and 8 are 7-7 in figure 6.
9 is an enlarged sectional view taken along line 9-9 of FIG. 6, FIG. 10 is a sectional view taken along line 10-10 of FIG. 7, and FIGS. 11 and 12. 13 is a side view and a plan view of the idle roller support shaft, FIG. 13 is a cross-sectional plan view showing the restrained state of the small chuck segment corresponding to FIG. 7, and FIGS. 14 and 15 show the aligned state of the chuck segment. A back (rear) view and a front (front) view, FIG. 16 is a cross-sectional view taken along the line 16-16 in FIG. 15, FIG. 17 is a cross-sectional view taken along the line 17-17 in FIG. 16,
Fig. 18 is a sectional plan view showing the alignment action of the chuck segments, Figs. 19 and 20 are side sectional views showing the process of press-fitting the fitting into the hose,
Figure 21 is a cross-sectional view taken along the line 21-21 in Figure 20.
2 and 23 are side views showing a state in which the fitting has been press-fitted into the hose and a state in which the cap tube is crimped, and FIG. 24 is a perspective view showing a modification of the present invention corresponding to FIG. FIG. 25 is a side view, FIG. 26 is a sectional view taken along the line 26-26 in FIG. 25, FIG. 27 is a perspective view showing the restrained state of the chuck segment corresponding to FIG. 5, and FIG. FIG. a... Hose, b... Cap tube, c... Coupling fitting, G... Recess, S... Penetration opening, 13... Inclined table, 15, 16... Screw hole, 17, 18... Roller support Shaft, 21, 22...Reverse roller, 23,
24...Spare screw hole, 29...Operation handle, 3
3...Press rod, 39...Chuck segment, 46, 47...Side wall.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. As a device for press-fitting and setting a fitting c into the hose a from the cut end of a flexible hose a covered with a cap tube b, fixedly placed on the installation board 11. A tilting table 13 fixedly installed in an upwardly tilted state after an angle θ, and a pair of left and right side walls 4 that stand integrally from the tilting table 13 at the front lower end position of the tilting table 13.
6, 47, or by a plurality of pairs of left and right free rotating rollers 21, 22 which are pivoted in an upright position from the inclined table 13, the plane gradually becomes narrower as it goes forward and downward. A recess G for receiving a chuck segment formed into an inverted V-shape when viewed from above, and a chuck segment that is slid into the recess G from the inclined table 13 and is received and restrained so that it cannot fall out from the recess G. and a pair of left and right chuck segments 39 that form a through hole S for receiving a hose on the mutually aligned inner surfaces facing each other; A pressing rod 3 is supported by a bearing at the rear upper end position of the rod 13 and is moved back and forth in the front and back direction by an operating handle 29.
3, the fitting c is temporarily inserted into the cut end of the hose a, the hose a is held in the through hole S of the chuck segment 39, and the fitting c is The above pressing rod 33
1. A press-fitting setting machine for a fitting fitting for a hose, characterized in that the fitting is press-fitted into the hose a by a forward operation of the fitting. 2. Drill a large number of screw holes 15, 16 on the left and right, in which the idle roller support shafts 17, 18 are to be installed, including the spare screw holes 23, 24, at the front lower end position of the tilting table 13. In addition, by replacing and fastening the roller support shafts 17, 18 to the screw holes 15, 16, 23, 24, it is possible to receive and adjust the chuck segment 39, which changes in size, into the recess G. Scope of Utility Model Registration Claims: 1. A machine for press-fitting a fitting into a hose as set forth in item 1.