JPS60213801A - Device for bore-hole insertion inspection of high pressure hose having metal mouthpieces at both ends - Google Patents

Abstract

PURPOSE:To omit manual working and to eliminate individual difference in the title inspection, by providing a detecting means, which detects the feeding load of a gage rod when the load exceeds a specified value, stops the insertion of the gage rods, and determines the clogging of the hole. CONSTITUTION:An inspecting device is provided with a clogged-hole detecting jig 10 and a gage rod 11, whose upper part is fixed to the axial center of the cylindrical clogged-hole detecting jig 10. The tip of a centering guide 5 is pushed into a metal mothpiece 2a by the action of a spring 7 and centering is performed. Then a gage-rod pushing plate 13 is lowered and the gage rod 11 is inserted into a high pressure hose 1 through the centering guide 5. Then the bore- hole insertion inspection is performed. At this time, a conical groove 15 of the centering guide 5 is closely contacted with a sheet surface 14 of the metal mouthpiece 2a. Thus the centering of the metal mouthpiece 2a and the gage rod 11 can be performed automaically. Manual working can be omitted and the individual difference in inspection operation can be eliminated.

Description

[Detailed Description of the Invention] [Background and Objectives of the Invention] The present invention relates to an inspection device for inspecting the inner diameter of a high-pressure hose with a cap fitting on both ends, and particularly for checking the center alignment of a cap fitting and a gauge rod, and the inner diameter of a high-pressure hose or a cap fitting. This invention relates to an inner diameter hole inspection device that is suitable for automatically detecting defects such as shrinkage.

Conventional internal hole inspection of high-pressure hoses with both-end fittings is done manually by grasping about a handful of high-pressure hoses with both-end fittings, inserting a gauge rod into each high-pressure hose, and inspecting both end fittings. The entire inner diameter of the attached high-pressure hose was inspected. However, since it was done manually, there were the following problems.

(1) Because inspection is carried out by grasping a handful of high-pressure hoses with fittings on both ends, the gauge rod may not be inserted properly.

(2) When inserting the gauge rod, the tip of the gauge rod may hit the inner wall of the fitting, which may cause damage to the inner wall of the fitting.

(3) When there is a constricted part of the inner diameter inside the high-pressure hose with fittings at both ends, there will be individual differences in determining whether the product is good or not.

The present invention has been made in view of the above, and its purpose is to align the gage rod and the gage rod on the side of the high-pressure hose with cap fittings on both ends, and to insert the gage rod into the inner diameter hole. An object of the present invention is to provide an inspection device for inspecting the inner diameter of a high-pressure hose with caps on both ends, which can automatically detect defects such as shrinkage in the inner diameter of the high-pressure hose or cap during inspection.

[Summary of the invention]

The present invention is characterized by a centering means that automatically aligns the gage rod insertion side cap fitting of a high-pressure hose with cap fittings on both ends and a gauge rod inserted into the cap fitting, and a centering means that automatically aligns the centering of the gage rod insertion side cap fitting of a high-pressure hose with cap fittings at both ends. gauge rod insertion means for automatically inserting the gauge rod into the high pressure hose with fittings at both ends after
When the feed load of the gauge rod increases to more than a predetermined value due to shrinkage of the inner diameter or blockage of the hole when the gauge rod is inserted into the high pressure hose with fittings at both ends using this insertion means and a hole inspection is performed. The hole clogging detection means detects this and stops the insertion of the goo 2 rod.

〔Example〕

The present invention will be explained in detail below using the embodiments shown in FIGS. 1 to 5.

FIG. 1 is a perspective view of the overall configuration of an embodiment of the inspection device for inspecting the internal diameter of a high-pressure hose with fittings at both ends according to the present invention. 1st
In the figure, reference numeral 1 denotes a high-pressure hose with caps 2a and 2b at both ends. In the inner diameter threading inspection device according to the present invention, a cap holder that holds one cap 2a is a plate 3, a high pressure hose holder that holds a high pressure hose 1 near the other cap 2b is a plate 4, and a centering guide 5. , a centering guide which is driven vertically by the rods of a pair of cylinders 5a and 5b, supports the centering guide 5 in a vertically movable manner, and is attached with a spring 7 which presses the centering guide 5 against the fitting 2a. A press plate 8, a gauge rod 11 whose upper end is fixed to the axis of a cylindrical hole clogging detection jig 10 having an annular groove 9 on the outer periphery of the central part thereof, and a passage hole and a hole of the hole clogging detection jig 10. The gauge rod 11 of the guide 5 for centering the gauge rod 11 having a spring granger 12 whose tip fits into the annular groove 9 of the clogging detection jig 10
It consists of a gauge rod pushing plate 13 that is driven up and down and inserted into and pulled out of the high pressure hose 1 with fittings at both ends through a hole slightly larger than the outer diameter of the gauge rod.

The cap fitting 2a of the high pressure hose 1 with cap fittings on both ends is held by the cap plate 3, and the high pressure hose 1 near the cap fitting 2b is held by the high pressure hose holder plate 4, and the centering guide pressing plate 8 is lowered by the cylinders 6a and 6b, and the tip of the centering guide 5a is pushed into the cap fitting 2a by the action of the spring 7 to perform centering.Then, the gauge rod pushing plate 13 is lowered and the gauge rod is J1 is inserted into the high-pressure hose 1 with fittings at both ends via the centering guide 5, and passed through the inner diameter hole to perform an inspection.

2 and 3 are diagrams showing the relationship between the hole clogging detection jig 10 and the spring plunger 12 in FIG. 1. Normally, as shown in FIG. The tip of the spring plunger 12 is fitted, and as the gauge rod pushing plate 13 is lowered, the gauge rod 11 is lowered to inspect the inner diameter hole. If a hole is clogged inside the high-pressure hose l with cap fittings at both ends while passing through the gauge rod 11, and the gauge rod 11 stops descending even though the gauge rod pushing plate 13 is lowered, the lowering of the gauge rod 11 stops as shown in Fig. 3. Then, the spring plunger 12 is disengaged from the annular groove 9 and moves in the direction of arrow a in the figure. This movement is detected by a hole clogging detector (not shown).

FIG. 4 is a longitudinal sectional view showing one embodiment of the cap 2a and centering guide shown in FIG. 1, and shows a state in which the two are separated. The cap 2a is provided with a slot into which the lower end of the alignment guide 5 is inserted, and at the bottom of the slot is a conical hole for centering the gauge rod 11 and the through hole of the cap 2a. A shaped seat surface 14 is provided, and on the other hand, a conical groove 15 that fits into the seat surface 14 is provided at the lower end of the centering guide 5. Therefore, when the centering guide pressing plate 8 of FIG. 1 is lowered and the centering guide 5 is lowered, the sheet surface 1 is lowered as shown in FIG.
The conical groove 15 is in close contact with the centering guide 5, and the gauge rod 11 descending through the center hole of the centering guide 5 is automatically aligned with the through hole of the cap fitting 2a. The spring 7 is provided to prevent overcurrent from being applied to the seat surface 14 of the cap 2a.

According to the embodiment of the present invention described above, the alignment guide 50 and the conical groove 15 are brought into close contact with the seat surface 14 of the cap 2a, thereby automatically aligning the cap 2a and the gauge rod 11. can be used without damaging the cap fitting 2a. In addition, if there is a hole clogging in the high pressure hose with fitting 1, it can be detected by changing the interaction between the hole clogging detection jig 10 provided with the annular groove 9 and the spring plunger 12. Therefore, manual work is not required, and the problem of individual differences in testing is eliminated. [Effects of the Invention] As explained above, according to the present invention, alignment of the cap fitting on the side where the gauge rod is inserted of a high-pressure hose with cap fittings at both ends and the gauge rod, and inspection for passing the inner diameter hole with the gauge rod are performed. It is possible to automatically detect defects such as shrinkage in the inner diameter of high-pressure hoses and cap fittings, and there is no damage to the cap fittings or individual differences in inspection.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the overall configuration of an embodiment of the inner diameter hole inspection device for a high-pressure hose with fittings at both ends according to the present invention, and FIGS. 2 and 3 show the hole clogging detection jig and spring plunger shown in FIG. 1. FIG. 4 is a vertical cross-sectional view showing one embodiment of the upper mouth fitting and centering guide shown in FIG. 1, and FIG. 5 is a view showing the centering state. 1...High pressure hoses 2a, 2b with fittings at both ends - fittings,
3...The fitting holder is a plate, 4...The high pressure hose holder is a plate, 5
...Centering guide, 6a, 6b...Cylinder,
7: Spring, 8: Center alignment guide pusher plate, 9: Annular groove, 10: Hole clogging detection jig,
11... Gauge rod 1.12. ...Spring plunger, 13...Plate for pushing gauge rod, 14...Seat surface, 15...Conical groove. % 1fl Aji 2 side Yu 3ffi Mi 5 old

Claims (1)

[Scope of Claims] 1. In an inner diameter hole inspection device for inspecting inner diameter contraction and hole clogging by inserting a gauge rod into a high pressure hose with fittings at both ends, inserting a gauge rod into the high pressure hose with fittings at both ends. A mandrel fitting means for automatically mandulating a side cap fitting and the gauge rod inserted into the cap fitting, and a mandrel fitting means which performs the mandrel fitting by the mandrel fitting means, and then attaching the high pressure hose with the both end cap fittings. A gauge rod insertion means for automatically inserting the gauge rod; and a gauge rod insertion means for automatically inserting the gauge rod into the high-pressure hose with fittings at both ends, and a gauge rod insertion means for inserting the gauge rod into the high pressure hose with fittings at both ends to prevent shrinkage of the inner diameter or clogging of the hole when performing a hole inspection. Therefore, the inner diameter of the high pressure hose with a double end fitting is characterized in that it is equipped with hole clogging detection means that detects when the feed load of the gauge rod increases to a predetermined value or more and stops the insertion of the gauge rod. Hole inspection device. 2. The core fitting means is provided at the gauge rod insertion side end of the gauge rod insertion side mouth fitting of the high pressure hose with both end fittings, and includes a conical seat surface and a conical groove fitted into the sheet surface. a core metal fitting guide having a through hole with an inner diameter slightly larger than the outer diameter of the gauge rod for guiding the gauge rod in the center thereof, and inserting and pressing the core metal fitting guide into the cap fitting. Claim 1 consisting of means
Inner diameter hole inspection device for high-pressure hose with fittings at both ends as described in 2. 3. The hole clogging detection means includes a hole clogging detection jig which is fixed to the rear end of the gauge rod and has an annular groove on the outer periphery of the central part in the axial direction, and the tip thereof is pressed into the annular groove by the force of a spring. A gauge rod push-in corner member having a passage hole of the hole clogging detection jig of the gauge rod insertion means that is
An apparatus for inspecting inner diameter holes of a high-pressure hose with a both-end opening fitting according to claim 1 or 2, comprising a spring brush jar attached thereto.