JPH036441B2 - - Google Patents

Description

[Detailed Description of the Invention] [Background and Objectives of the Invention] The present invention relates to an inspection device for a high-pressure hose with an intermediate joint fitting, and is particularly suitable for inspecting length, angular phase, internal hole clogging, etc. It is related to.

In the conventional completed product inspection work for high pressure hoses with intermediate joint fittings, as shown in FIG. Place only the book on the surface plate 5 and inspect the specified dimensions L ₁ , L ₂ , L ₃ with the ruler 6, then,
In this state, fix the intermediate joint fitting 2 with your fingers and check whether the angular phase of both end fittings 3 and 4 with respect to the intermediate joint fitting 2 is within the specified angular phase.
As shown in FIGS. 2a and 2b, inspect with angled block gauges 7a and 7b, and finally grasp the cap fitting 4 with your hands and hold it slightly larger than the diameter of the protective pipe inside the cap fittings 3 and 4 at both ends. A gauge rod 8, which is slightly longer than the overall length _L1 of the high-pressure hose 1 having a small diameter, is manually inserted into the high-pressure hose 1 to check for clogging of the internal holes. However, such inspection work has the following problems.

(1) Since it is a visual inspection of specified dimensions using a ruler 6, there are individual differences in the inspection and errors in inspection accuracy occur.

(2) Angular phase inspection is performed using angled block gauge 7.
Since the test pieces a and 7b are inserted into the space between the end caps 3 and 4 and the surface plate 5 depending on the angular phase, the test results in variations due to individual differences.

(3) When inspecting the internal hole clogging in the high-pressure hose 1 with an intermediate joint fitting, alignment work when inserting the gauge rod 8 was not easy, and the inner seat surface of the fitting 4 was damaged when the gauge rod 8 was inserted. is often attached.

(4) If different metal fittings are mixed in, it may be overlooked.

The present invention has been made in view of the above, and its purpose is to easily inspect the length of a high-pressure hose with an intermediate joint fitting, the angular phase of both end fittings with respect to the intermediate joint fitting, and internal hole clogging inspection. Moreover, it is an object of the present invention to provide an inspection device for a high-pressure hose with an intermediate joint fitting that can be accurately inspected.

[Summary of the invention]

The features of the present invention include an intermediate joint fitting block that matches the shape of the intermediate joint fitting of a high pressure hose with an intermediate joint at a predetermined position, and an angular phase of both end fittings of the high pressure hose with respect to the intermediate fitting fitting within a tolerance. a surface plate fixed with two cap blocks configured such that the both end caps fit therein when the two end caps are placed in the surface plate; The above-mentioned centering is performed by means of aligning an alignment jig with one of the above-mentioned caps of the high-pressure hose with the intermediate joint caps cut so that the above-mentioned caps fit into each of the blocks on a surface plate. Inserting and passing a gauge rod through a jig into the set high pressure hose to check whether the hole in the high pressure hose is clogged.If the hole in the high pressure hose is clogged, stop inserting the gauge rod and at the same time comprising a gauge rod insertion means equipped with a means for transmitting a hole clogging detection signal;
The present invention is configured to visually inspect the length of the high-pressure hose and the angular phase of the end fittings of the high-pressure hose with respect to the intermediate joint fitting, thereby automatically inspecting the hole clogging of the high-pressure hose.

〔Example〕

The present invention will be explained in detail below using the embodiments shown in FIGS. 3 to 7.

FIG. 3 is a perspective view showing one embodiment of the inspection device of the present invention, showing a state in which a high pressure hose 1 with an intermediate joint fitting is set. In FIG. 3, 9 is a surface plate, 10 is an intermediate joint fitting block that matches the shape of the intermediate joint fitting 2, and 11 and 12 are both end fitting blocks, which are fixed at a predetermined position on the surface plate 10. be. 13 is a centering jig 15 with a spring 14
The presser branch 16 holding the centering jig 15 while pressing the centering jig 16 moves the presser plate 13 in the direction of the cap 4 of the high pressure hose 1 with an intermediate joint cap that is set on the surface plate 9 and removes the cap. 4 and a centering jig 15 to perform centering; a centering jig extrusion cylinder; 17;
Reference numeral 19 indicates a presser branch which holds the tip of the gauge rod 8 through a hole clogging detection jig 18, and 19 indicates a presser bar that holds the tip of the gauge rod 8 through a hole clogging detection jig 18;
This is a gauge rod insertion cylinder that is moved so as to be inserted into the high pressure hose 1 with an intermediate joint fitting.

First, in the state shown in FIG. 3, the angular phase of both end fittings 3 and 4 with respect to the intermediate joint fitting 2 is inspected. 4 and 5 respectively show the state in which the angular phase of both end fittings 3 and 4 with respect to the intermediate joint fitting 2 is inspected using blocks 11 and 12 at both end fittings (however, in this case, the It is assumed that the joint fitting 2 fits into the intermediate joint fitting block 10). Both end fitting block 11,1
2 is the width of the parallel portion of the caps 3 and 4, respectively, so that the caps will not enter the cap blocks 11 and 12 unless the angular phase of the caps 3 and 4 is within the tolerance.
The dimensions l ₁ ′ and l ₂ ′ for l ₁ and l ₂ are set to values that take into account the angular phase tolerance. Therefore, the fourth
As shown in FIG. 5, when the caps 3 and 4 enter the blocks 11 and 12, respectively, as shown in FIG.
Since it shows that the angular phase is within the tolerance, it can be determined that the inspection has passed.

Further, the both end fitting blocks 11 and 12 connect the high pressure hose 1 with the intermediate fitting fitting to the intermediate fitting fitting 2.
When setting the high pressure hose 1 so that it enters the intermediate joint fitting block 10, the dimensions of each part of the high pressure hose ₁ L1,
When L ₂ and L ₃ (see Figure 1) are the maximum allowable dimensions, the outer end surfaces of the caps 3 and 4 coincide with the outer end surfaces of the cap blocks 11 and 12, respectively, and when they are the minimum allowable dimensions, the caps 3 , 4 are provided with a margin in the longitudinal direction so that their inner end surfaces coincide with the inner end surfaces of the cap blocks 11 and 12, respectively, so that the lengths can be inspected at the same time.

Next, a hole clogging test will be explained. In the state where the high pressure hose 1 with the intermediate joint fitting is set as described above, first place the presser plate 13 on the cylinder 1.
6, move it to the surface plate 9 side, as shown in Fig. 6.
Centering is performed by bringing the conical tapered portion 21 at the tip of the centering jig 15 into contact with the seat surface 20 of the cap fitting 4. In this case, even if the presser plate 13 moves too much, the centering jig 15 presses the cap fitting 4 with the force of the spring 14, so that an excessive load will not be applied to the spring 14. Next, the holding plate 17 is moved to the surface plate 9 side using the cylinder 19, and the gauge rod 8 is passed through the hole clogging detection jig 18 to the centering jig 15, which has completed centering.
It is inserted into the high-pressure hose 1 with the intermediate joint fitting through the fitting 4 through the fitting 4, and is passed through the high-pressure hose 1. At this time, if there is a hole clogging (inner diameter contraction) in the high pressure hose 1, as shown in FIG.
Since a load is applied to the gauge rod 8 due to hole clogging, the hole clogging detection jig 18 detects the gauge rod 8 at that point.
(This is because the hole clogging detection jig 18 is pressed against the holding plate 17 with a certain predetermined force). Therefore, the hole clogging is detected by the stop limit switch 22 of the hole clogging detection jig 18, and the hole clogging can be detected based on the detection signal.

According to the embodiment of the present invention described above, (a) It is possible to visually determine whether the length of the high-pressure hose 1 with an intermediate joint fitting is good or bad.

(b) Both end fittings 3 and 4 for intermediate joint fitting 2
Whether or not the angular phase of the two ends is within the tolerance can be determined by whether or not they enter the both end cap blocks 11 and 12.

(c) A hole clogging test for the high pressure hose 1 with an intermediate joint fitting can be automatically performed.

There is an advantage.

In addition, by devising each block 9 to 12, it is also possible to inspect whether or not different types of cap fittings are used. Further, a configuration may be adopted in which multiple pieces are inspected at the same time, and this can be easily realized.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to easily and accurately inspect the length of a high-pressure hose with an intermediate joint fitting, the angular phase of both end fittings with respect to the intermediate joint fitting, and internal hole clogging inspection. There is an effect that it can be done.

[Brief explanation of drawings]

Figure 1 is a perspective view of a device for explaining the conventional inspection method for high-pressure hoses with intermediate joint fittings;
The figure is an explanatory diagram of a conventional angular phase inspection of both end fittings with respect to the intermediate fitting of a high pressure hose with an intermediate fitting, and Fig. 3 shows an embodiment of the inspection device for a high pressure hose with an intermediate fitting of the present invention. 4 and 5 are explanatory diagrams of the angle phase inspection of both end fittings using the both end fitting blocks shown in Fig. 3, and Fig. 6 is an illustration of the centering using the fittings and centering jig shown in Fig. 3. FIG. 7 is a cross-sectional view for explaining removal, and is an explanatory diagram of hole clogging detection using the hole clogging detection jig shown in FIG. 3. 1: High pressure hose with intermediate joint fitting, 2: Intermediate joint fitting, 3, 4: Both end fittings, 8: Gauge rod, 9: Surface plate, 10: Intermediate joint fitting block,
11, 12: Both end fitting block, 13, 17:
Holding plate, 14: Spring, 15: Centering jig,
16, 19: Cylinder, 18: Hole clogging detection jig,
20: Seat surface, 21: Conical taper part, 2
2: Limit switch.

Claims (1)

[Claims] 1. When the angular phase of the intermediate joint fitting block that matches the shape of the intermediate joint fitting of the high-pressure hose with the intermediate fitting fittings in their respective predetermined positions and the intermediate fitting fittings of both end fittings of the high-pressure hose with respect to the intermediate fitting fittings is within the tolerance. a surface plate to which two cap blocks configured such that the both end caps can be inserted therein, and a surface plate provided in the direction in which one of the both end caps of the surface plate is located; means for aligning an alignment jig with one of the caps of the high pressure hose with an intermediate joint cap that is set so that the caps fit into each block; A gauge rod for inspecting a clogged hole in the high pressure hose is inserted into the set high pressure hose and passes through the high pressure hose.If a hole is clogged in the high pressure hose, the insertion of the gauge rod is stopped and a hole clogged detection signal is output. The method includes a gauge rod insertion means equipped with a feeding means, and visually inspects the length of the high-pressure hose and the angular phase of the end fittings of the high-pressure hose with respect to the intermediate joint fitting, and automatically detects clogging of holes in the high-pressure hose. An inspection device for a high-pressure hose with an intermediate joint fitting, characterized by having a configuration for inspection.